diff options
Diffstat (limited to 'mesalib/src/mesa/main')
42 files changed, 32078 insertions, 32097 deletions
diff --git a/mesalib/src/mesa/main/api_arrayelt.c b/mesalib/src/mesa/main/api_arrayelt.c index 080c20606..3c59e9be3 100644 --- a/mesalib/src/mesa/main/api_arrayelt.c +++ b/mesalib/src/mesa/main/api_arrayelt.c @@ -51,7 +51,7 @@ typedef struct { int offset;
} AEarray;
-typedef void (GLAPIENTRY *attrib_func)( GLuint indx, const void *data );
+typedef void (*attrib_func)( GLuint indx, const void *data );
typedef struct {
const struct gl_client_array *array;
diff --git a/mesalib/src/mesa/main/api_exec.c b/mesalib/src/mesa/main/api_exec.c index 4101ac424..be14d6272 100644 --- a/mesalib/src/mesa/main/api_exec.c +++ b/mesalib/src/mesa/main/api_exec.c @@ -105,7 +105,6 @@ #if FEATURE_GL
-
/**
* Initialize a dispatch table with pointers to Mesa's immediate-mode
* commands.
diff --git a/mesalib/src/mesa/main/attrib.c b/mesalib/src/mesa/main/attrib.c index ae7f633b8..3a6239afd 100644 --- a/mesalib/src/mesa/main/attrib.c +++ b/mesalib/src/mesa/main/attrib.c @@ -1,1555 +1,1555 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "glheader.h" -#include "imports.h" -#include "accum.h" -#include "arrayobj.h" -#include "attrib.h" -#include "blend.h" -#include "buffers.h" -#include "bufferobj.h" -#include "clear.h" -#include "colormac.h" -#include "context.h" -#include "depth.h" -#include "enable.h" -#include "enums.h" -#include "fog.h" -#include "hint.h" -#include "light.h" -#include "lines.h" -#include "macros.h" -#include "matrix.h" -#include "mfeatures.h" -#include "multisample.h" -#include "points.h" -#include "polygon.h" -#include "scissor.h" -#include "stencil.h" -#include "texenv.h" -#include "texgen.h" -#include "texobj.h" -#include "texparam.h" -#include "texstate.h" -#include "varray.h" -#include "viewport.h" -#include "mtypes.h" -#include "main/dispatch.h" - - -/** - * glEnable()/glDisable() attribute group (GL_ENABLE_BIT). - */ -struct gl_enable_attrib -{ - GLboolean AlphaTest; - GLboolean AutoNormal; - GLboolean Blend; - GLbitfield ClipPlanes; - GLboolean ColorMaterial; - GLboolean CullFace; - GLboolean DepthClamp; - GLboolean DepthTest; - GLboolean Dither; - GLboolean Fog; - GLboolean Light[MAX_LIGHTS]; - GLboolean Lighting; - GLboolean LineSmooth; - GLboolean LineStipple; - GLboolean IndexLogicOp; - GLboolean ColorLogicOp; - - GLboolean Map1Color4; - GLboolean Map1Index; - GLboolean Map1Normal; - GLboolean Map1TextureCoord1; - GLboolean Map1TextureCoord2; - GLboolean Map1TextureCoord3; - GLboolean Map1TextureCoord4; - GLboolean Map1Vertex3; - GLboolean Map1Vertex4; - GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */ - GLboolean Map2Color4; - GLboolean Map2Index; - GLboolean Map2Normal; - GLboolean Map2TextureCoord1; - GLboolean Map2TextureCoord2; - GLboolean Map2TextureCoord3; - GLboolean Map2TextureCoord4; - GLboolean Map2Vertex3; - GLboolean Map2Vertex4; - GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */ - - GLboolean Normalize; - GLboolean PixelTexture; - GLboolean PointSmooth; - GLboolean PolygonOffsetPoint; - GLboolean PolygonOffsetLine; - GLboolean PolygonOffsetFill; - GLboolean PolygonSmooth; - GLboolean PolygonStipple; - GLboolean RescaleNormals; - GLboolean Scissor; - GLboolean Stencil; - GLboolean StencilTwoSide; /* GL_EXT_stencil_two_side */ - GLboolean MultisampleEnabled; /* GL_ARB_multisample */ - GLboolean SampleAlphaToCoverage; /* GL_ARB_multisample */ - GLboolean SampleAlphaToOne; /* GL_ARB_multisample */ - GLboolean SampleCoverage; /* GL_ARB_multisample */ - GLboolean SampleCoverageInvert; /* GL_ARB_multisample */ - GLboolean RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */ - - GLbitfield Texture[MAX_TEXTURE_UNITS]; - GLbitfield TexGen[MAX_TEXTURE_UNITS]; - - /* GL_ARB_vertex_program / GL_NV_vertex_program */ - GLboolean VertexProgram; - GLboolean VertexProgramPointSize; - GLboolean VertexProgramTwoSide; - - /* GL_ARB_point_sprite / GL_NV_point_sprite */ - GLboolean PointSprite; - GLboolean FragmentShaderATI; -}; - - -/** - * Node for the attribute stack. - */ -struct gl_attrib_node -{ - GLbitfield kind; - void *data; - struct gl_attrib_node *next; -}; - - - -/** - * Special struct for saving/restoring texture state (GL_TEXTURE_BIT) - */ -struct texture_state -{ - struct gl_texture_attrib Texture; /**< The usual context state */ - - /** to save per texture object state (wrap modes, filters, etc): */ - struct gl_texture_object SavedObj[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS]; - - /** - * To save references to texture objects (so they don't get accidentally - * deleted while saved in the attribute stack). - */ - struct gl_texture_object *SavedTexRef[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS]; -}; - - -#if FEATURE_attrib_stack - - -/** - * Allocate new attribute node of given type/kind. Attach payload data. - * Insert it into the linked list named by 'head'. - */ -static void -save_attrib_data(struct gl_attrib_node **head, - GLbitfield kind, void *payload) -{ - struct gl_attrib_node *n = MALLOC_STRUCT(gl_attrib_node); - if (n) { - n->kind = kind; - n->data = payload; - /* insert at head */ - n->next = *head; - *head = n; - } - else { - /* out of memory! */ - } -} - - -void GLAPIENTRY -_mesa_PushAttrib(GLbitfield mask) -{ - struct gl_attrib_node *head; - - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask); - - if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) { - _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" ); - return; - } - - /* Build linked list of attribute nodes which save all attribute */ - /* groups specified by the mask. */ - head = NULL; - - if (mask & GL_ACCUM_BUFFER_BIT) { - struct gl_accum_attrib *attr; - attr = MALLOC_STRUCT( gl_accum_attrib ); - memcpy( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) ); - save_attrib_data(&head, GL_ACCUM_BUFFER_BIT, attr); - } - - if (mask & GL_COLOR_BUFFER_BIT) { - GLuint i; - struct gl_colorbuffer_attrib *attr; - attr = MALLOC_STRUCT( gl_colorbuffer_attrib ); - memcpy( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) ); - /* push the Draw FBO's DrawBuffer[] state, not ctx->Color.DrawBuffer[] */ - for (i = 0; i < ctx->Const.MaxDrawBuffers; i ++) - attr->DrawBuffer[i] = ctx->DrawBuffer->ColorDrawBuffer[i]; - save_attrib_data(&head, GL_COLOR_BUFFER_BIT, attr); - } - - if (mask & GL_CURRENT_BIT) { - struct gl_current_attrib *attr; - FLUSH_CURRENT( ctx, 0 ); - attr = MALLOC_STRUCT( gl_current_attrib ); - memcpy( attr, &ctx->Current, sizeof(struct gl_current_attrib) ); - save_attrib_data(&head, GL_CURRENT_BIT, attr); - } - - if (mask & GL_DEPTH_BUFFER_BIT) { - struct gl_depthbuffer_attrib *attr; - attr = MALLOC_STRUCT( gl_depthbuffer_attrib ); - memcpy( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) ); - save_attrib_data(&head, GL_DEPTH_BUFFER_BIT, attr); - } - - if (mask & GL_ENABLE_BIT) { - struct gl_enable_attrib *attr; - GLuint i; - attr = MALLOC_STRUCT( gl_enable_attrib ); - /* Copy enable flags from all other attributes into the enable struct. */ - attr->AlphaTest = ctx->Color.AlphaEnabled; - attr->AutoNormal = ctx->Eval.AutoNormal; - attr->Blend = ctx->Color.BlendEnabled; - attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled; - attr->ColorMaterial = ctx->Light.ColorMaterialEnabled; - attr->CullFace = ctx->Polygon.CullFlag; - attr->DepthClamp = ctx->Transform.DepthClamp; - attr->DepthTest = ctx->Depth.Test; - attr->Dither = ctx->Color.DitherFlag; - attr->Fog = ctx->Fog.Enabled; - for (i = 0; i < ctx->Const.MaxLights; i++) { - attr->Light[i] = ctx->Light.Light[i].Enabled; - } - attr->Lighting = ctx->Light.Enabled; - attr->LineSmooth = ctx->Line.SmoothFlag; - attr->LineStipple = ctx->Line.StippleFlag; - attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled; - attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled; - attr->Map1Color4 = ctx->Eval.Map1Color4; - attr->Map1Index = ctx->Eval.Map1Index; - attr->Map1Normal = ctx->Eval.Map1Normal; - attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1; - attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2; - attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3; - attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4; - attr->Map1Vertex3 = ctx->Eval.Map1Vertex3; - attr->Map1Vertex4 = ctx->Eval.Map1Vertex4; - memcpy(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib)); - attr->Map2Color4 = ctx->Eval.Map2Color4; - attr->Map2Index = ctx->Eval.Map2Index; - attr->Map2Normal = ctx->Eval.Map2Normal; - attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1; - attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2; - attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3; - attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4; - attr->Map2Vertex3 = ctx->Eval.Map2Vertex3; - attr->Map2Vertex4 = ctx->Eval.Map2Vertex4; - memcpy(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib)); - attr->Normalize = ctx->Transform.Normalize; - attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped; - attr->PointSmooth = ctx->Point.SmoothFlag; - attr->PointSprite = ctx->Point.PointSprite; - attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint; - attr->PolygonOffsetLine = ctx->Polygon.OffsetLine; - attr->PolygonOffsetFill = ctx->Polygon.OffsetFill; - attr->PolygonSmooth = ctx->Polygon.SmoothFlag; - attr->PolygonStipple = ctx->Polygon.StippleFlag; - attr->RescaleNormals = ctx->Transform.RescaleNormals; - attr->Scissor = ctx->Scissor.Enabled; - attr->Stencil = ctx->Stencil.Enabled; - attr->StencilTwoSide = ctx->Stencil.TestTwoSide; - attr->MultisampleEnabled = ctx->Multisample.Enabled; - attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage; - attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne; - attr->SampleCoverage = ctx->Multisample.SampleCoverage; - attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert; - for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - attr->Texture[i] = ctx->Texture.Unit[i].Enabled; - attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled; - } - /* GL_NV_vertex_program */ - attr->VertexProgram = ctx->VertexProgram.Enabled; - attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled; - attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled; - save_attrib_data(&head, GL_ENABLE_BIT, attr); - } - - if (mask & GL_EVAL_BIT) { - struct gl_eval_attrib *attr; - attr = MALLOC_STRUCT( gl_eval_attrib ); - memcpy( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) ); - save_attrib_data(&head, GL_EVAL_BIT, attr); - } - - if (mask & GL_FOG_BIT) { - struct gl_fog_attrib *attr; - attr = MALLOC_STRUCT( gl_fog_attrib ); - memcpy( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) ); - save_attrib_data(&head, GL_FOG_BIT, attr); - } - - if (mask & GL_HINT_BIT) { - struct gl_hint_attrib *attr; - attr = MALLOC_STRUCT( gl_hint_attrib ); - memcpy( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) ); - save_attrib_data(&head, GL_HINT_BIT, attr); - } - - if (mask & GL_LIGHTING_BIT) { - struct gl_light_attrib *attr; - FLUSH_CURRENT(ctx, 0); /* flush material changes */ - attr = MALLOC_STRUCT( gl_light_attrib ); - memcpy( attr, &ctx->Light, sizeof(struct gl_light_attrib) ); - save_attrib_data(&head, GL_LIGHTING_BIT, attr); - } - - if (mask & GL_LINE_BIT) { - struct gl_line_attrib *attr; - attr = MALLOC_STRUCT( gl_line_attrib ); - memcpy( attr, &ctx->Line, sizeof(struct gl_line_attrib) ); - save_attrib_data(&head, GL_LINE_BIT, attr); - } - - if (mask & GL_LIST_BIT) { - struct gl_list_attrib *attr; - attr = MALLOC_STRUCT( gl_list_attrib ); - memcpy( attr, &ctx->List, sizeof(struct gl_list_attrib) ); - save_attrib_data(&head, GL_LIST_BIT, attr); - } - - if (mask & GL_PIXEL_MODE_BIT) { - struct gl_pixel_attrib *attr; - attr = MALLOC_STRUCT( gl_pixel_attrib ); - memcpy( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) ); - /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */ - attr->ReadBuffer = ctx->ReadBuffer->ColorReadBuffer; - save_attrib_data(&head, GL_PIXEL_MODE_BIT, attr); - } - - if (mask & GL_POINT_BIT) { - struct gl_point_attrib *attr; - attr = MALLOC_STRUCT( gl_point_attrib ); - memcpy( attr, &ctx->Point, sizeof(struct gl_point_attrib) ); - save_attrib_data(&head, GL_POINT_BIT, attr); - } - - if (mask & GL_POLYGON_BIT) { - struct gl_polygon_attrib *attr; - attr = MALLOC_STRUCT( gl_polygon_attrib ); - memcpy( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) ); - save_attrib_data(&head, GL_POLYGON_BIT, attr); - } - - if (mask & GL_POLYGON_STIPPLE_BIT) { - GLuint *stipple; - stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) ); - memcpy( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) ); - save_attrib_data(&head, GL_POLYGON_STIPPLE_BIT, stipple); - } - - if (mask & GL_SCISSOR_BIT) { - struct gl_scissor_attrib *attr; - attr = MALLOC_STRUCT( gl_scissor_attrib ); - memcpy( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) ); - save_attrib_data(&head, GL_SCISSOR_BIT, attr); - } - - if (mask & GL_STENCIL_BUFFER_BIT) { - struct gl_stencil_attrib *attr; - attr = MALLOC_STRUCT( gl_stencil_attrib ); - memcpy( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) ); - save_attrib_data(&head, GL_STENCIL_BUFFER_BIT, attr); - } - - if (mask & GL_TEXTURE_BIT) { - struct texture_state *texstate = CALLOC_STRUCT(texture_state); - GLuint u, tex; - - if (!texstate) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glPushAttrib(GL_TEXTURE_BIT)"); - goto end; - } - - _mesa_lock_context_textures(ctx); - - /* copy/save the bulk of texture state here */ - memcpy(&texstate->Texture, &ctx->Texture, sizeof(ctx->Texture)); - - /* Save references to the currently bound texture objects so they don't - * accidentally get deleted while referenced in the attribute stack. - */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - _mesa_reference_texobj(&texstate->SavedTexRef[u][tex], - ctx->Texture.Unit[u].CurrentTex[tex]); - } - } - - /* copy state/contents of the currently bound texture objects */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - _mesa_copy_texture_object(&texstate->SavedObj[u][tex], - ctx->Texture.Unit[u].CurrentTex[tex]); - } - } - - _mesa_unlock_context_textures(ctx); - - save_attrib_data(&head, GL_TEXTURE_BIT, texstate); - } - - if (mask & GL_TRANSFORM_BIT) { - struct gl_transform_attrib *attr; - attr = MALLOC_STRUCT( gl_transform_attrib ); - memcpy( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) ); - save_attrib_data(&head, GL_TRANSFORM_BIT, attr); - } - - if (mask & GL_VIEWPORT_BIT) { - struct gl_viewport_attrib *attr; - attr = MALLOC_STRUCT( gl_viewport_attrib ); - memcpy( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) ); - save_attrib_data(&head, GL_VIEWPORT_BIT, attr); - } - - /* GL_ARB_multisample */ - if (mask & GL_MULTISAMPLE_BIT_ARB) { - struct gl_multisample_attrib *attr; - attr = MALLOC_STRUCT( gl_multisample_attrib ); - memcpy( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) ); - save_attrib_data(&head, GL_MULTISAMPLE_BIT_ARB, attr); - } - -end: - ctx->AttribStack[ctx->AttribStackDepth] = head; - ctx->AttribStackDepth++; -} - - - -static void -pop_enable_group(struct gl_context *ctx, const struct gl_enable_attrib *enable) -{ - const GLuint curTexUnitSave = ctx->Texture.CurrentUnit; - GLuint i; - -#define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \ - if ((VALUE) != (NEWVALUE)) { \ - _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \ - } - - TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST); - if (ctx->Color.BlendEnabled != enable->Blend) { - if (ctx->Extensions.EXT_draw_buffers2) { - GLuint i; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - _mesa_set_enablei(ctx, GL_BLEND, i, (enable->Blend >> i) & 1); - } - } - else { - _mesa_set_enable(ctx, GL_BLEND, (enable->Blend & 1)); - } - } - - for (i=0;i<MAX_CLIP_PLANES;i++) { - const GLuint mask = 1 << i; - if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask)) - _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i), - (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE)); - } - - TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial, - GL_COLOR_MATERIAL); - TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE); - TEST_AND_UPDATE(ctx->Transform.DepthClamp, enable->DepthClamp, - GL_DEPTH_CLAMP); - TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST); - TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER); - TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG); - TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING); - TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH); - TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple, - GL_LINE_STIPPLE); - TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp, - GL_INDEX_LOGIC_OP); - TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp, - GL_COLOR_LOGIC_OP); - - TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4); - TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX); - TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL); - TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1, - GL_MAP1_TEXTURE_COORD_1); - TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2, - GL_MAP1_TEXTURE_COORD_2); - TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3, - GL_MAP1_TEXTURE_COORD_3); - TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4, - GL_MAP1_TEXTURE_COORD_4); - TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3, - GL_MAP1_VERTEX_3); - TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4, - GL_MAP1_VERTEX_4); - for (i = 0; i < 16; i++) { - TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i], - GL_MAP1_VERTEX_ATTRIB0_4_NV + i); - } - - TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4); - TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX); - TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL); - TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1, - GL_MAP2_TEXTURE_COORD_1); - TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2, - GL_MAP2_TEXTURE_COORD_2); - TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3, - GL_MAP2_TEXTURE_COORD_3); - TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4, - GL_MAP2_TEXTURE_COORD_4); - TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3, - GL_MAP2_VERTEX_3); - TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4, - GL_MAP2_VERTEX_4); - for (i = 0; i < 16; i++) { - TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i], - GL_MAP2_VERTEX_ATTRIB0_4_NV + i); - } - - TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL); - TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE); - TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals, - GL_RESCALE_NORMAL_EXT); - TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped, - enable->RasterPositionUnclipped, - GL_RASTER_POSITION_UNCLIPPED_IBM); - TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth, - GL_POINT_SMOOTH); - if (ctx->Extensions.NV_point_sprite || ctx->Extensions.ARB_point_sprite) { - TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite, - GL_POINT_SPRITE_NV); - } - TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint, - GL_POLYGON_OFFSET_POINT); - TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine, - GL_POLYGON_OFFSET_LINE); - TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill, - GL_POLYGON_OFFSET_FILL); - TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth, - GL_POLYGON_SMOOTH); - TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple, - GL_POLYGON_STIPPLE); - TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST); - TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST); - if (ctx->Extensions.EXT_stencil_two_side) { - TEST_AND_UPDATE(ctx->Stencil.TestTwoSide, enable->StencilTwoSide, GL_STENCIL_TEST_TWO_SIDE_EXT); - } - TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled, - GL_MULTISAMPLE_ARB); - TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage, - enable->SampleAlphaToCoverage, - GL_SAMPLE_ALPHA_TO_COVERAGE_ARB); - TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne, - enable->SampleAlphaToOne, - GL_SAMPLE_ALPHA_TO_ONE_ARB); - TEST_AND_UPDATE(ctx->Multisample.SampleCoverage, - enable->SampleCoverage, - GL_SAMPLE_COVERAGE_ARB); - TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert, - enable->SampleCoverageInvert, - GL_SAMPLE_COVERAGE_INVERT_ARB); - /* GL_ARB_vertex_program, GL_NV_vertex_program */ - TEST_AND_UPDATE(ctx->VertexProgram.Enabled, - enable->VertexProgram, - GL_VERTEX_PROGRAM_ARB); - TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled, - enable->VertexProgramPointSize, - GL_VERTEX_PROGRAM_POINT_SIZE_ARB); - TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled, - enable->VertexProgramTwoSide, - GL_VERTEX_PROGRAM_TWO_SIDE_ARB); - -#undef TEST_AND_UPDATE - - /* texture unit enables */ - for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - const GLbitfield enabled = enable->Texture[i]; - const GLbitfield genEnabled = enable->TexGen[i]; - - if (ctx->Texture.Unit[i].Enabled != enabled) { - _mesa_ActiveTextureARB(GL_TEXTURE0 + i); - - _mesa_set_enable(ctx, GL_TEXTURE_1D, - (enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_2D, - (enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_3D, - (enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE); - if (ctx->Extensions.NV_texture_rectangle) { - _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_ARB, - (enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE); - } - if (ctx->Extensions.ARB_texture_cube_map) { - _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, - (enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE); - } - if (ctx->Extensions.MESA_texture_array) { - _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT, - (enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT, - (enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE); - } - } - - if (ctx->Texture.Unit[i].TexGenEnabled != genEnabled) { - _mesa_ActiveTextureARB(GL_TEXTURE0 + i); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, - (genEnabled & S_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, - (genEnabled & T_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, - (genEnabled & R_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, - (genEnabled & Q_BIT) ? GL_TRUE : GL_FALSE); - } - } - - _mesa_ActiveTextureARB(GL_TEXTURE0 + curTexUnitSave); -} - - -/** - * Pop/restore texture attribute/group state. - */ -static void -pop_texture_group(struct gl_context *ctx, struct texture_state *texstate) -{ - GLuint u; - - _mesa_lock_context_textures(ctx); - - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - const struct gl_texture_unit *unit = &texstate->Texture.Unit[u]; - GLuint tgt; - - _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u); - _mesa_set_enable(ctx, GL_TEXTURE_1D, - (unit->Enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_2D, - (unit->Enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_3D, - (unit->Enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE); - if (ctx->Extensions.ARB_texture_cube_map) { - _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB, - (unit->Enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE); - } - if (ctx->Extensions.NV_texture_rectangle) { - _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV, - (unit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE); - } - if (ctx->Extensions.MESA_texture_array) { - _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT, - (unit->Enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT, - (unit->Enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE); - } - - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode); - _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor); - _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenS.Mode); - _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenT.Mode); - _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenR.Mode); - _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenQ.Mode); - _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->GenS.ObjectPlane); - _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->GenT.ObjectPlane); - _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->GenR.ObjectPlane); - _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->GenQ.ObjectPlane); - /* Eye plane done differently to avoid re-transformation */ - { - struct gl_texture_unit *destUnit = &ctx->Texture.Unit[u]; - COPY_4FV(destUnit->GenS.EyePlane, unit->GenS.EyePlane); - COPY_4FV(destUnit->GenT.EyePlane, unit->GenT.EyePlane); - COPY_4FV(destUnit->GenR.EyePlane, unit->GenR.EyePlane); - COPY_4FV(destUnit->GenQ.EyePlane, unit->GenQ.EyePlane); - if (ctx->Driver.TexGen) { - ctx->Driver.TexGen(ctx, GL_S, GL_EYE_PLANE, unit->GenS.EyePlane); - ctx->Driver.TexGen(ctx, GL_T, GL_EYE_PLANE, unit->GenT.EyePlane); - ctx->Driver.TexGen(ctx, GL_R, GL_EYE_PLANE, unit->GenR.EyePlane); - ctx->Driver.TexGen(ctx, GL_Q, GL_EYE_PLANE, unit->GenQ.EyePlane); - } - } - _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, - ((unit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE)); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, - ((unit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE)); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, - ((unit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE)); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, - ((unit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE)); - if (ctx->Extensions.EXT_texture_lod_bias) { - _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, - GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias); - } - if (ctx->Extensions.EXT_texture_env_combine || - ctx->Extensions.ARB_texture_env_combine) { - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, - unit->Combine.ModeRGB); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, - unit->Combine.ModeA); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, - unit->Combine.SourceRGB[0]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, - unit->Combine.SourceRGB[1]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB, - unit->Combine.SourceRGB[2]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, - unit->Combine.SourceA[0]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA, - unit->Combine.SourceA[1]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA, - unit->Combine.SourceA[2]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, - unit->Combine.OperandRGB[0]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, - unit->Combine.OperandRGB[1]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB, - unit->Combine.OperandRGB[2]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, - unit->Combine.OperandA[0]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, - unit->Combine.OperandA[1]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA, - unit->Combine.OperandA[2]); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE, - 1 << unit->Combine.ScaleShiftRGB); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, - 1 << unit->Combine.ScaleShiftA); - } - - /* Restore texture object state for each target */ - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - const struct gl_texture_object *obj = NULL; - GLenum target; - - obj = &texstate->SavedObj[u][tgt]; - - /* don't restore state for unsupported targets to prevent - * raising GL errors. - */ - if (obj->Target == GL_TEXTURE_CUBE_MAP_ARB && - !ctx->Extensions.ARB_texture_cube_map) { - continue; - } - else if (obj->Target == GL_TEXTURE_RECTANGLE_NV && - !ctx->Extensions.NV_texture_rectangle) { - continue; - } - else if ((obj->Target == GL_TEXTURE_1D_ARRAY_EXT || - obj->Target == GL_TEXTURE_2D_ARRAY_EXT) && - !ctx->Extensions.MESA_texture_array) { - continue; - } - - target = obj->Target; - - _mesa_BindTexture(target, obj->Name); - - _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, obj->BorderColor.f); - _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR); - _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter); - _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter); - _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod); - _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod); - _mesa_TexParameterf(target, GL_TEXTURE_LOD_BIAS, obj->LodBias); - _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel); - if (target != GL_TEXTURE_RECTANGLE_ARB) - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel); - if (ctx->Extensions.EXT_texture_filter_anisotropic) { - _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, - obj->MaxAnisotropy); - } - if (ctx->Extensions.ARB_shadow_ambient) { - _mesa_TexParameterf(target, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, - obj->CompareFailValue); - } - } - - /* remove saved references to the texture objects */ - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL); - } - } - - _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + texstate->Texture.CurrentUnit); - - _mesa_unlock_context_textures(ctx); -} - - -/* - * This function is kind of long just because we have to call a lot - * of device driver functions to update device driver state. - * - * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions - * in order to restore GL state. This isn't terribly efficient but it - * ensures that dirty flags and any derived state gets updated correctly. - * We could at least check if the value to restore equals the current value - * and then skip the Mesa call. - */ -void GLAPIENTRY -_mesa_PopAttrib(void) -{ - struct gl_attrib_node *attr, *next; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->AttribStackDepth == 0) { - _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" ); - return; - } - - ctx->AttribStackDepth--; - attr = ctx->AttribStack[ctx->AttribStackDepth]; - - while (attr) { - - if (MESA_VERBOSE & VERBOSE_API) { - _mesa_debug(ctx, "glPopAttrib %s\n", - _mesa_lookup_enum_by_nr(attr->kind)); - } - - switch (attr->kind) { - case GL_ACCUM_BUFFER_BIT: - { - const struct gl_accum_attrib *accum; - accum = (const struct gl_accum_attrib *) attr->data; - _mesa_ClearAccum(accum->ClearColor[0], - accum->ClearColor[1], - accum->ClearColor[2], - accum->ClearColor[3]); - } - break; - case GL_COLOR_BUFFER_BIT: - { - const struct gl_colorbuffer_attrib *color; - - color = (const struct gl_colorbuffer_attrib *) attr->data; - _mesa_ClearIndex((GLfloat) color->ClearIndex); - _mesa_ClearColor(color->ClearColor[0], - color->ClearColor[1], - color->ClearColor[2], - color->ClearColor[3]); - _mesa_IndexMask(color->IndexMask); - if (!ctx->Extensions.EXT_draw_buffers2) { - _mesa_ColorMask((GLboolean) (color->ColorMask[0][0] != 0), - (GLboolean) (color->ColorMask[0][1] != 0), - (GLboolean) (color->ColorMask[0][2] != 0), - (GLboolean) (color->ColorMask[0][3] != 0)); - } - else { - GLuint i; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - _mesa_ColorMaskIndexed(i, - (GLboolean) (color->ColorMask[i][0] != 0), - (GLboolean) (color->ColorMask[i][1] != 0), - (GLboolean) (color->ColorMask[i][2] != 0), - (GLboolean) (color->ColorMask[i][3] != 0)); - } - } - { - /* Need to determine if more than one color output is - * specified. If so, call glDrawBuffersARB, else call - * glDrawBuffer(). This is a subtle, but essential point - * since GL_FRONT (for example) is illegal for the former - * function, but legal for the later. - */ - GLboolean multipleBuffers = GL_FALSE; - GLuint i; - - for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) { - if (color->DrawBuffer[i] != GL_NONE) { - multipleBuffers = GL_TRUE; - break; - } - } - /* Call the API_level functions, not _mesa_drawbuffers() - * since we need to do error checking on the pop'd - * GL_DRAW_BUFFER. - * Ex: if GL_FRONT were pushed, but we're popping with a - * user FBO bound, GL_FRONT will be illegal and we'll need - * to record that error. Per OpenGL ARB decision. - */ - if (multipleBuffers) - _mesa_DrawBuffersARB(ctx->Const.MaxDrawBuffers, - color->DrawBuffer); - else - _mesa_DrawBuffer(color->DrawBuffer[0]); - } - _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled); - _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef); - if (ctx->Color.BlendEnabled != color->BlendEnabled) { - if (ctx->Extensions.EXT_draw_buffers2) { - GLuint i; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - _mesa_set_enablei(ctx, GL_BLEND, i, - (color->BlendEnabled >> i) & 1); - } - } - else { - _mesa_set_enable(ctx, GL_BLEND, (color->BlendEnabled & 1)); - } - } - if (ctx->Color._BlendFuncPerBuffer || - ctx->Color._BlendEquationPerBuffer) { - /* set blend per buffer */ - GLuint buf; - for (buf = 0; buf < ctx->Const.MaxDrawBuffers; buf++) { - _mesa_BlendFuncSeparatei(buf, color->Blend[buf].SrcRGB, - color->Blend[buf].DstRGB, - color->Blend[buf].SrcA, - color->Blend[buf].DstA); - _mesa_BlendEquationSeparatei(buf, - color->Blend[buf].EquationRGB, - color->Blend[buf].EquationA); - } - } - else { - /* set same blend modes for all buffers */ - _mesa_BlendFuncSeparateEXT(color->Blend[0].SrcRGB, - color->Blend[0].DstRGB, - color->Blend[0].SrcA, - color->Blend[0].DstA); - /* This special case is because glBlendEquationSeparateEXT - * cannot take GL_LOGIC_OP as a parameter. - */ - if (color->Blend[0].EquationRGB == - color->Blend[0].EquationA) { - _mesa_BlendEquation(color->Blend[0].EquationRGB); - } - else { - _mesa_BlendEquationSeparateEXT( - color->Blend[0].EquationRGB, - color->Blend[0].EquationA); - } - } - _mesa_BlendColor(color->BlendColor[0], - color->BlendColor[1], - color->BlendColor[2], - color->BlendColor[3]); - _mesa_LogicOp(color->LogicOp); - _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, - color->ColorLogicOpEnabled); - _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP, - color->IndexLogicOpEnabled); - _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag); - } - break; - case GL_CURRENT_BIT: - FLUSH_CURRENT( ctx, 0 ); - memcpy( &ctx->Current, attr->data, - sizeof(struct gl_current_attrib) ); - break; - case GL_DEPTH_BUFFER_BIT: - { - const struct gl_depthbuffer_attrib *depth; - depth = (const struct gl_depthbuffer_attrib *) attr->data; - _mesa_DepthFunc(depth->Func); - _mesa_ClearDepth(depth->Clear); - _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test); - _mesa_DepthMask(depth->Mask); - } - break; - case GL_ENABLE_BIT: - { - const struct gl_enable_attrib *enable; - enable = (const struct gl_enable_attrib *) attr->data; - pop_enable_group(ctx, enable); - ctx->NewState |= _NEW_ALL; - } - break; - case GL_EVAL_BIT: - memcpy( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) ); - ctx->NewState |= _NEW_EVAL; - break; - case GL_FOG_BIT: - { - const struct gl_fog_attrib *fog; - fog = (const struct gl_fog_attrib *) attr->data; - _mesa_set_enable(ctx, GL_FOG, fog->Enabled); - _mesa_Fogfv(GL_FOG_COLOR, fog->Color); - _mesa_Fogf(GL_FOG_DENSITY, fog->Density); - _mesa_Fogf(GL_FOG_START, fog->Start); - _mesa_Fogf(GL_FOG_END, fog->End); - _mesa_Fogf(GL_FOG_INDEX, fog->Index); - _mesa_Fogi(GL_FOG_MODE, fog->Mode); - } - break; - case GL_HINT_BIT: - { - const struct gl_hint_attrib *hint; - hint = (const struct gl_hint_attrib *) attr->data; - _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT, - hint->PerspectiveCorrection ); - _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth); - _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth); - _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth); - _mesa_Hint(GL_FOG_HINT, hint->Fog); - _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT, - hint->ClipVolumeClipping); - _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB, - hint->TextureCompression); - } - break; - case GL_LIGHTING_BIT: - { - GLuint i; - const struct gl_light_attrib *light; - light = (const struct gl_light_attrib *) attr->data; - /* lighting enable */ - _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled); - /* per-light state */ - if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) - _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); - - for (i = 0; i < ctx->Const.MaxLights; i++) { - const struct gl_light *l = &light->Light[i]; - _mesa_set_enable(ctx, GL_LIGHT0 + i, l->Enabled); - _mesa_light(ctx, i, GL_AMBIENT, l->Ambient); - _mesa_light(ctx, i, GL_DIFFUSE, l->Diffuse); - _mesa_light(ctx, i, GL_SPECULAR, l->Specular ); - _mesa_light(ctx, i, GL_POSITION, l->EyePosition); - _mesa_light(ctx, i, GL_SPOT_DIRECTION, l->SpotDirection); - { - GLfloat p[4] = { 0 }; - p[0] = l->SpotExponent; - _mesa_light(ctx, i, GL_SPOT_EXPONENT, p); - } - { - GLfloat p[4] = { 0 }; - p[0] = l->SpotCutoff; - _mesa_light(ctx, i, GL_SPOT_CUTOFF, p); - } - { - GLfloat p[4] = { 0 }; - p[0] = l->ConstantAttenuation; - _mesa_light(ctx, i, GL_CONSTANT_ATTENUATION, p); - } - { - GLfloat p[4] = { 0 }; - p[0] = l->LinearAttenuation; - _mesa_light(ctx, i, GL_LINEAR_ATTENUATION, p); - } - { - GLfloat p[4] = { 0 }; - p[0] = l->QuadraticAttenuation; - _mesa_light(ctx, i, GL_QUADRATIC_ATTENUATION, p); - } - } - /* light model */ - _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT, - light->Model.Ambient); - _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER, - (GLfloat) light->Model.LocalViewer); - _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE, - (GLfloat) light->Model.TwoSide); - _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL, - (GLfloat) light->Model.ColorControl); - /* shade model */ - _mesa_ShadeModel(light->ShadeModel); - /* color material */ - _mesa_ColorMaterial(light->ColorMaterialFace, - light->ColorMaterialMode); - _mesa_set_enable(ctx, GL_COLOR_MATERIAL, - light->ColorMaterialEnabled); - /* materials */ - memcpy(&ctx->Light.Material, &light->Material, - sizeof(struct gl_material)); - } - break; - case GL_LINE_BIT: - { - const struct gl_line_attrib *line; - line = (const struct gl_line_attrib *) attr->data; - _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag); - _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag); - _mesa_LineStipple(line->StippleFactor, line->StipplePattern); - _mesa_LineWidth(line->Width); - } - break; - case GL_LIST_BIT: - memcpy( &ctx->List, attr->data, sizeof(struct gl_list_attrib) ); - break; - case GL_PIXEL_MODE_BIT: - memcpy( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) ); - /* XXX what other pixel state needs to be set by function calls? */ - _mesa_ReadBuffer(ctx->Pixel.ReadBuffer); - ctx->NewState |= _NEW_PIXEL; - break; - case GL_POINT_BIT: - { - const struct gl_point_attrib *point; - point = (const struct gl_point_attrib *) attr->data; - _mesa_PointSize(point->Size); - _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag); - if (ctx->Extensions.EXT_point_parameters) { - _mesa_PointParameterfv(GL_DISTANCE_ATTENUATION_EXT, - point->Params); - _mesa_PointParameterf(GL_POINT_SIZE_MIN_EXT, - point->MinSize); - _mesa_PointParameterf(GL_POINT_SIZE_MAX_EXT, - point->MaxSize); - _mesa_PointParameterf(GL_POINT_FADE_THRESHOLD_SIZE_EXT, - point->Threshold); - } - if (ctx->Extensions.NV_point_sprite - || ctx->Extensions.ARB_point_sprite) { - GLuint u; - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV, - (GLint) point->CoordReplace[u]); - } - _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite); - if (ctx->Extensions.NV_point_sprite) - _mesa_PointParameteri(GL_POINT_SPRITE_R_MODE_NV, - ctx->Point.SpriteRMode); - _mesa_PointParameterf(GL_POINT_SPRITE_COORD_ORIGIN, - (GLfloat)ctx->Point.SpriteOrigin); - } - } - break; - case GL_POLYGON_BIT: - { - const struct gl_polygon_attrib *polygon; - polygon = (const struct gl_polygon_attrib *) attr->data; - _mesa_CullFace(polygon->CullFaceMode); - _mesa_FrontFace(polygon->FrontFace); - _mesa_PolygonMode(GL_FRONT, polygon->FrontMode); - _mesa_PolygonMode(GL_BACK, polygon->BackMode); - _mesa_PolygonOffset(polygon->OffsetFactor, - polygon->OffsetUnits); - _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag); - _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag); - _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag); - _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT, - polygon->OffsetPoint); - _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE, - polygon->OffsetLine); - _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, - polygon->OffsetFill); - } - break; - case GL_POLYGON_STIPPLE_BIT: - memcpy( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) ); - ctx->NewState |= _NEW_POLYGONSTIPPLE; - if (ctx->Driver.PolygonStipple) - ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data ); - break; - case GL_SCISSOR_BIT: - { - const struct gl_scissor_attrib *scissor; - scissor = (const struct gl_scissor_attrib *) attr->data; - _mesa_Scissor(scissor->X, scissor->Y, - scissor->Width, scissor->Height); - _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled); - } - break; - case GL_STENCIL_BUFFER_BIT: - { - const struct gl_stencil_attrib *stencil; - stencil = (const struct gl_stencil_attrib *) attr->data; - _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled); - _mesa_ClearStencil(stencil->Clear); - if (ctx->Extensions.EXT_stencil_two_side) { - _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT, - stencil->TestTwoSide); - _mesa_ActiveStencilFaceEXT(stencil->ActiveFace - ? GL_BACK : GL_FRONT); - } - /* front state */ - _mesa_StencilFuncSeparate(GL_FRONT, - stencil->Function[0], - stencil->Ref[0], - stencil->ValueMask[0]); - _mesa_StencilMaskSeparate(GL_FRONT, stencil->WriteMask[0]); - _mesa_StencilOpSeparate(GL_FRONT, stencil->FailFunc[0], - stencil->ZFailFunc[0], - stencil->ZPassFunc[0]); - /* back state */ - _mesa_StencilFuncSeparate(GL_BACK, - stencil->Function[1], - stencil->Ref[1], - stencil->ValueMask[1]); - _mesa_StencilMaskSeparate(GL_BACK, stencil->WriteMask[1]); - _mesa_StencilOpSeparate(GL_BACK, stencil->FailFunc[1], - stencil->ZFailFunc[1], - stencil->ZPassFunc[1]); - } - break; - case GL_TRANSFORM_BIT: - { - GLuint i; - const struct gl_transform_attrib *xform; - xform = (const struct gl_transform_attrib *) attr->data; - _mesa_MatrixMode(xform->MatrixMode); - if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top)) - _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); - - /* restore clip planes */ - for (i = 0; i < MAX_CLIP_PLANES; i++) { - const GLuint mask = 1 << i; - const GLfloat *eyePlane = xform->EyeUserPlane[i]; - COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane); - if (xform->ClipPlanesEnabled & mask) { - _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE); - } - else { - _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE); - } - if (ctx->Driver.ClipPlane) - ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane ); - } - - /* normalize/rescale */ - if (xform->Normalize != ctx->Transform.Normalize) - _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize); - if (xform->RescaleNormals != ctx->Transform.RescaleNormals) - _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT, - ctx->Transform.RescaleNormals); - if (xform->DepthClamp != ctx->Transform.DepthClamp) - _mesa_set_enable(ctx, GL_DEPTH_CLAMP, - ctx->Transform.DepthClamp); - } - break; - case GL_TEXTURE_BIT: - /* Take care of texture object reference counters */ - { - struct texture_state *texstate - = (struct texture_state *) attr->data; - pop_texture_group(ctx, texstate); - ctx->NewState |= _NEW_TEXTURE; - } - break; - case GL_VIEWPORT_BIT: - { - const struct gl_viewport_attrib *vp; - vp = (const struct gl_viewport_attrib *) attr->data; - _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height); - _mesa_DepthRange(vp->Near, vp->Far); - } - break; - case GL_MULTISAMPLE_BIT_ARB: - { - const struct gl_multisample_attrib *ms; - ms = (const struct gl_multisample_attrib *) attr->data; - _mesa_SampleCoverageARB(ms->SampleCoverageValue, - ms->SampleCoverageInvert); - } - break; - - default: - _mesa_problem( ctx, "Bad attrib flag in PopAttrib"); - break; - } - - next = attr->next; - FREE( attr->data ); - FREE( attr ); - attr = next; - } -} - - -/** - * Helper for incrementing/decrementing vertex buffer object reference - * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group. - */ -static void -adjust_buffer_object_ref_counts(struct gl_array_object *arrayObj, GLint step) -{ - GLuint i; - - arrayObj->Vertex.BufferObj->RefCount += step; - arrayObj->Weight.BufferObj->RefCount += step; - arrayObj->Normal.BufferObj->RefCount += step; - arrayObj->Color.BufferObj->RefCount += step; - arrayObj->SecondaryColor.BufferObj->RefCount += step; - arrayObj->FogCoord.BufferObj->RefCount += step; - arrayObj->Index.BufferObj->RefCount += step; - arrayObj->EdgeFlag.BufferObj->RefCount += step; - for (i = 0; i < Elements(arrayObj->TexCoord); i++) - arrayObj->TexCoord[i].BufferObj->RefCount += step; - for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) - arrayObj->VertexAttrib[i].BufferObj->RefCount += step; -} - - -/** - * Copy gl_pixelstore_attrib from src to dst, updating buffer - * object refcounts. - */ -static void -copy_pixelstore(struct gl_context *ctx, - struct gl_pixelstore_attrib *dst, - const struct gl_pixelstore_attrib *src) -{ - dst->Alignment = src->Alignment; - dst->RowLength = src->RowLength; - dst->SkipPixels = src->SkipPixels; - dst->SkipRows = src->SkipRows; - dst->ImageHeight = src->ImageHeight; - dst->SkipImages = src->SkipImages; - dst->SwapBytes = src->SwapBytes; - dst->LsbFirst = src->LsbFirst; - dst->ClientStorage = src->ClientStorage; - dst->Invert = src->Invert; - _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj); -} - - -#define GL_CLIENT_PACK_BIT (1<<20) -#define GL_CLIENT_UNPACK_BIT (1<<21) - - -void GLAPIENTRY -_mesa_PushClientAttrib(GLbitfield mask) -{ - struct gl_attrib_node *head; - - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) { - _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" ); - return; - } - - /* Build linked list of attribute nodes which save all attribute - * groups specified by the mask. - */ - head = NULL; - - if (mask & GL_CLIENT_PIXEL_STORE_BIT) { - struct gl_pixelstore_attrib *attr; - /* packing attribs */ - attr = CALLOC_STRUCT( gl_pixelstore_attrib ); - copy_pixelstore(ctx, attr, &ctx->Pack); - save_attrib_data(&head, GL_CLIENT_PACK_BIT, attr); - /* unpacking attribs */ - attr = CALLOC_STRUCT( gl_pixelstore_attrib ); - copy_pixelstore(ctx, attr, &ctx->Unpack); - save_attrib_data(&head, GL_CLIENT_UNPACK_BIT, attr); - } - - if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) { - struct gl_array_attrib *attr; - struct gl_array_object *obj; - - attr = MALLOC_STRUCT( gl_array_attrib ); - obj = MALLOC_STRUCT( gl_array_object ); - -#if FEATURE_ARB_vertex_buffer_object - /* increment ref counts since we're copying pointers to these objects */ - ctx->Array.ArrayBufferObj->RefCount++; - ctx->Array.ElementArrayBufferObj->RefCount++; -#endif - - memcpy( attr, &ctx->Array, sizeof(struct gl_array_attrib) ); - memcpy( obj, ctx->Array.ArrayObj, sizeof(struct gl_array_object) ); - - attr->ArrayObj = obj; - - save_attrib_data(&head, GL_CLIENT_VERTEX_ARRAY_BIT, attr); - - /* bump reference counts on buffer objects */ - adjust_buffer_object_ref_counts(ctx->Array.ArrayObj, 1); - } - - ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head; - ctx->ClientAttribStackDepth++; -} - - - - -void GLAPIENTRY -_mesa_PopClientAttrib(void) -{ - struct gl_attrib_node *node, *next; - - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->ClientAttribStackDepth == 0) { - _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" ); - return; - } - - ctx->ClientAttribStackDepth--; - node = ctx->ClientAttribStack[ctx->ClientAttribStackDepth]; - - while (node) { - switch (node->kind) { - case GL_CLIENT_PACK_BIT: - { - struct gl_pixelstore_attrib *store = - (struct gl_pixelstore_attrib *) node->data; - copy_pixelstore(ctx, &ctx->Pack, store); - _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL); - } - ctx->NewState |= _NEW_PACKUNPACK; - break; - case GL_CLIENT_UNPACK_BIT: - { - struct gl_pixelstore_attrib *store = - (struct gl_pixelstore_attrib *) node->data; - copy_pixelstore(ctx, &ctx->Unpack, store); - _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL); - } - ctx->NewState |= _NEW_PACKUNPACK; - break; - case GL_CLIENT_VERTEX_ARRAY_BIT: { - struct gl_array_attrib * data = - (struct gl_array_attrib *) node->data; - - adjust_buffer_object_ref_counts(ctx->Array.ArrayObj, -1); - - ctx->Array.ActiveTexture = data->ActiveTexture; - if (data->LockCount != 0) - _mesa_LockArraysEXT(data->LockFirst, data->LockCount); - else if (ctx->Array.LockCount) - _mesa_UnlockArraysEXT(); - - _mesa_BindVertexArrayAPPLE( data->ArrayObj->Name ); - -#if FEATURE_ARB_vertex_buffer_object - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, - data->ArrayBufferObj->Name); - _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, - data->ElementArrayBufferObj->Name); -#endif - - memcpy( ctx->Array.ArrayObj, data->ArrayObj, - sizeof( struct gl_array_object ) ); - - FREE( data->ArrayObj ); - - /* FIXME: Should some bits in ctx->Array->NewState also be set - * FIXME: here? It seems like it should be set to inclusive-or - * FIXME: of the old ArrayObj->_Enabled and the new _Enabled. - */ - - ctx->NewState |= _NEW_ARRAY; - break; - } - default: - _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib"); - break; - } - - next = node->next; - FREE( node->data ); - FREE( node ); - node = next; - } -} - - -void -_mesa_init_attrib_dispatch(struct _glapi_table *disp) -{ - SET_PopAttrib(disp, _mesa_PopAttrib); - SET_PushAttrib(disp, _mesa_PushAttrib); - SET_PopClientAttrib(disp, _mesa_PopClientAttrib); - SET_PushClientAttrib(disp, _mesa_PushClientAttrib); -} - - -#endif /* FEATURE_attrib_stack */ - - -/** - * Free any attribute state data that might be attached to the context. - */ -void -_mesa_free_attrib_data(struct gl_context *ctx) -{ - while (ctx->AttribStackDepth > 0) { - struct gl_attrib_node *attr, *next; - - ctx->AttribStackDepth--; - attr = ctx->AttribStack[ctx->AttribStackDepth]; - - while (attr) { - if (attr->kind == GL_TEXTURE_BIT) { - struct texture_state *texstate = (struct texture_state*)attr->data; - GLuint u, tgt; - /* clear references to the saved texture objects */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL); - } - } - } - else { - /* any other chunks of state that requires special handling? */ - } - - next = attr->next; - free(attr->data); - free(attr); - attr = next; - } - } -} - - -void _mesa_init_attrib( struct gl_context *ctx ) -{ - /* Renderer and client attribute stacks */ - ctx->AttribStackDepth = 0; - ctx->ClientAttribStackDepth = 0; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glheader.h"
+#include "imports.h"
+#include "accum.h"
+#include "arrayobj.h"
+#include "attrib.h"
+#include "blend.h"
+#include "buffers.h"
+#include "bufferobj.h"
+#include "clear.h"
+#include "colormac.h"
+#include "context.h"
+#include "depth.h"
+#include "enable.h"
+#include "enums.h"
+#include "fog.h"
+#include "hint.h"
+#include "light.h"
+#include "lines.h"
+#include "macros.h"
+#include "matrix.h"
+#include "mfeatures.h"
+#include "multisample.h"
+#include "points.h"
+#include "polygon.h"
+#include "scissor.h"
+#include "stencil.h"
+#include "texenv.h"
+#include "texgen.h"
+#include "texobj.h"
+#include "texparam.h"
+#include "texstate.h"
+#include "varray.h"
+#include "viewport.h"
+#include "mtypes.h"
+#include "main/dispatch.h"
+
+
+/**
+ * glEnable()/glDisable() attribute group (GL_ENABLE_BIT).
+ */
+struct gl_enable_attrib
+{
+ GLboolean AlphaTest;
+ GLboolean AutoNormal;
+ GLboolean Blend;
+ GLbitfield ClipPlanes;
+ GLboolean ColorMaterial;
+ GLboolean CullFace;
+ GLboolean DepthClamp;
+ GLboolean DepthTest;
+ GLboolean Dither;
+ GLboolean Fog;
+ GLboolean Light[MAX_LIGHTS];
+ GLboolean Lighting;
+ GLboolean LineSmooth;
+ GLboolean LineStipple;
+ GLboolean IndexLogicOp;
+ GLboolean ColorLogicOp;
+
+ GLboolean Map1Color4;
+ GLboolean Map1Index;
+ GLboolean Map1Normal;
+ GLboolean Map1TextureCoord1;
+ GLboolean Map1TextureCoord2;
+ GLboolean Map1TextureCoord3;
+ GLboolean Map1TextureCoord4;
+ GLboolean Map1Vertex3;
+ GLboolean Map1Vertex4;
+ GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */
+ GLboolean Map2Color4;
+ GLboolean Map2Index;
+ GLboolean Map2Normal;
+ GLboolean Map2TextureCoord1;
+ GLboolean Map2TextureCoord2;
+ GLboolean Map2TextureCoord3;
+ GLboolean Map2TextureCoord4;
+ GLboolean Map2Vertex3;
+ GLboolean Map2Vertex4;
+ GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */
+
+ GLboolean Normalize;
+ GLboolean PixelTexture;
+ GLboolean PointSmooth;
+ GLboolean PolygonOffsetPoint;
+ GLboolean PolygonOffsetLine;
+ GLboolean PolygonOffsetFill;
+ GLboolean PolygonSmooth;
+ GLboolean PolygonStipple;
+ GLboolean RescaleNormals;
+ GLboolean Scissor;
+ GLboolean Stencil;
+ GLboolean StencilTwoSide; /* GL_EXT_stencil_two_side */
+ GLboolean MultisampleEnabled; /* GL_ARB_multisample */
+ GLboolean SampleAlphaToCoverage; /* GL_ARB_multisample */
+ GLboolean SampleAlphaToOne; /* GL_ARB_multisample */
+ GLboolean SampleCoverage; /* GL_ARB_multisample */
+ GLboolean SampleCoverageInvert; /* GL_ARB_multisample */
+ GLboolean RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */
+
+ GLbitfield Texture[MAX_TEXTURE_UNITS];
+ GLbitfield TexGen[MAX_TEXTURE_UNITS];
+
+ /* GL_ARB_vertex_program / GL_NV_vertex_program */
+ GLboolean VertexProgram;
+ GLboolean VertexProgramPointSize;
+ GLboolean VertexProgramTwoSide;
+
+ /* GL_ARB_point_sprite / GL_NV_point_sprite */
+ GLboolean PointSprite;
+ GLboolean FragmentShaderATI;
+};
+
+
+/**
+ * Node for the attribute stack.
+ */
+struct gl_attrib_node
+{
+ GLbitfield kind;
+ void *data;
+ struct gl_attrib_node *next;
+};
+
+
+
+/**
+ * Special struct for saving/restoring texture state (GL_TEXTURE_BIT)
+ */
+struct texture_state
+{
+ struct gl_texture_attrib Texture; /**< The usual context state */
+
+ /** to save per texture object state (wrap modes, filters, etc): */
+ struct gl_texture_object SavedObj[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS];
+
+ /**
+ * To save references to texture objects (so they don't get accidentally
+ * deleted while saved in the attribute stack).
+ */
+ struct gl_texture_object *SavedTexRef[MAX_TEXTURE_UNITS][NUM_TEXTURE_TARGETS];
+};
+
+
+#if FEATURE_attrib_stack
+
+
+/**
+ * Allocate new attribute node of given type/kind. Attach payload data.
+ * Insert it into the linked list named by 'head'.
+ */
+static void
+save_attrib_data(struct gl_attrib_node **head,
+ GLbitfield kind, void *payload)
+{
+ struct gl_attrib_node *n = MALLOC_STRUCT(gl_attrib_node);
+ if (n) {
+ n->kind = kind;
+ n->data = payload;
+ /* insert at head */
+ n->next = *head;
+ *head = n;
+ }
+ else {
+ /* out of memory! */
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_PushAttrib(GLbitfield mask)
+{
+ struct gl_attrib_node *head;
+
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glPushAttrib %x\n", (int) mask);
+
+ if (ctx->AttribStackDepth >= MAX_ATTRIB_STACK_DEPTH) {
+ _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
+ return;
+ }
+
+ /* Build linked list of attribute nodes which save all attribute */
+ /* groups specified by the mask. */
+ head = NULL;
+
+ if (mask & GL_ACCUM_BUFFER_BIT) {
+ struct gl_accum_attrib *attr;
+ attr = MALLOC_STRUCT( gl_accum_attrib );
+ memcpy( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
+ save_attrib_data(&head, GL_ACCUM_BUFFER_BIT, attr);
+ }
+
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ GLuint i;
+ struct gl_colorbuffer_attrib *attr;
+ attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
+ memcpy( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
+ /* push the Draw FBO's DrawBuffer[] state, not ctx->Color.DrawBuffer[] */
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i ++)
+ attr->DrawBuffer[i] = ctx->DrawBuffer->ColorDrawBuffer[i];
+ save_attrib_data(&head, GL_COLOR_BUFFER_BIT, attr);
+ }
+
+ if (mask & GL_CURRENT_BIT) {
+ struct gl_current_attrib *attr;
+ FLUSH_CURRENT( ctx, 0 );
+ attr = MALLOC_STRUCT( gl_current_attrib );
+ memcpy( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
+ save_attrib_data(&head, GL_CURRENT_BIT, attr);
+ }
+
+ if (mask & GL_DEPTH_BUFFER_BIT) {
+ struct gl_depthbuffer_attrib *attr;
+ attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
+ memcpy( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
+ save_attrib_data(&head, GL_DEPTH_BUFFER_BIT, attr);
+ }
+
+ if (mask & GL_ENABLE_BIT) {
+ struct gl_enable_attrib *attr;
+ GLuint i;
+ attr = MALLOC_STRUCT( gl_enable_attrib );
+ /* Copy enable flags from all other attributes into the enable struct. */
+ attr->AlphaTest = ctx->Color.AlphaEnabled;
+ attr->AutoNormal = ctx->Eval.AutoNormal;
+ attr->Blend = ctx->Color.BlendEnabled;
+ attr->ClipPlanes = ctx->Transform.ClipPlanesEnabled;
+ attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
+ attr->CullFace = ctx->Polygon.CullFlag;
+ attr->DepthClamp = ctx->Transform.DepthClamp;
+ attr->DepthTest = ctx->Depth.Test;
+ attr->Dither = ctx->Color.DitherFlag;
+ attr->Fog = ctx->Fog.Enabled;
+ for (i = 0; i < ctx->Const.MaxLights; i++) {
+ attr->Light[i] = ctx->Light.Light[i].Enabled;
+ }
+ attr->Lighting = ctx->Light.Enabled;
+ attr->LineSmooth = ctx->Line.SmoothFlag;
+ attr->LineStipple = ctx->Line.StippleFlag;
+ attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
+ attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
+ attr->Map1Color4 = ctx->Eval.Map1Color4;
+ attr->Map1Index = ctx->Eval.Map1Index;
+ attr->Map1Normal = ctx->Eval.Map1Normal;
+ attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
+ attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
+ attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
+ attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
+ attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
+ attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
+ memcpy(attr->Map1Attrib, ctx->Eval.Map1Attrib, sizeof(ctx->Eval.Map1Attrib));
+ attr->Map2Color4 = ctx->Eval.Map2Color4;
+ attr->Map2Index = ctx->Eval.Map2Index;
+ attr->Map2Normal = ctx->Eval.Map2Normal;
+ attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
+ attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
+ attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
+ attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
+ attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
+ attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
+ memcpy(attr->Map2Attrib, ctx->Eval.Map2Attrib, sizeof(ctx->Eval.Map2Attrib));
+ attr->Normalize = ctx->Transform.Normalize;
+ attr->RasterPositionUnclipped = ctx->Transform.RasterPositionUnclipped;
+ attr->PointSmooth = ctx->Point.SmoothFlag;
+ attr->PointSprite = ctx->Point.PointSprite;
+ attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
+ attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
+ attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
+ attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
+ attr->PolygonStipple = ctx->Polygon.StippleFlag;
+ attr->RescaleNormals = ctx->Transform.RescaleNormals;
+ attr->Scissor = ctx->Scissor.Enabled;
+ attr->Stencil = ctx->Stencil.Enabled;
+ attr->StencilTwoSide = ctx->Stencil.TestTwoSide;
+ attr->MultisampleEnabled = ctx->Multisample.Enabled;
+ attr->SampleAlphaToCoverage = ctx->Multisample.SampleAlphaToCoverage;
+ attr->SampleAlphaToOne = ctx->Multisample.SampleAlphaToOne;
+ attr->SampleCoverage = ctx->Multisample.SampleCoverage;
+ attr->SampleCoverageInvert = ctx->Multisample.SampleCoverageInvert;
+ for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+ attr->Texture[i] = ctx->Texture.Unit[i].Enabled;
+ attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
+ }
+ /* GL_NV_vertex_program */
+ attr->VertexProgram = ctx->VertexProgram.Enabled;
+ attr->VertexProgramPointSize = ctx->VertexProgram.PointSizeEnabled;
+ attr->VertexProgramTwoSide = ctx->VertexProgram.TwoSideEnabled;
+ save_attrib_data(&head, GL_ENABLE_BIT, attr);
+ }
+
+ if (mask & GL_EVAL_BIT) {
+ struct gl_eval_attrib *attr;
+ attr = MALLOC_STRUCT( gl_eval_attrib );
+ memcpy( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
+ save_attrib_data(&head, GL_EVAL_BIT, attr);
+ }
+
+ if (mask & GL_FOG_BIT) {
+ struct gl_fog_attrib *attr;
+ attr = MALLOC_STRUCT( gl_fog_attrib );
+ memcpy( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
+ save_attrib_data(&head, GL_FOG_BIT, attr);
+ }
+
+ if (mask & GL_HINT_BIT) {
+ struct gl_hint_attrib *attr;
+ attr = MALLOC_STRUCT( gl_hint_attrib );
+ memcpy( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
+ save_attrib_data(&head, GL_HINT_BIT, attr);
+ }
+
+ if (mask & GL_LIGHTING_BIT) {
+ struct gl_light_attrib *attr;
+ FLUSH_CURRENT(ctx, 0); /* flush material changes */
+ attr = MALLOC_STRUCT( gl_light_attrib );
+ memcpy( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
+ save_attrib_data(&head, GL_LIGHTING_BIT, attr);
+ }
+
+ if (mask & GL_LINE_BIT) {
+ struct gl_line_attrib *attr;
+ attr = MALLOC_STRUCT( gl_line_attrib );
+ memcpy( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
+ save_attrib_data(&head, GL_LINE_BIT, attr);
+ }
+
+ if (mask & GL_LIST_BIT) {
+ struct gl_list_attrib *attr;
+ attr = MALLOC_STRUCT( gl_list_attrib );
+ memcpy( attr, &ctx->List, sizeof(struct gl_list_attrib) );
+ save_attrib_data(&head, GL_LIST_BIT, attr);
+ }
+
+ if (mask & GL_PIXEL_MODE_BIT) {
+ struct gl_pixel_attrib *attr;
+ attr = MALLOC_STRUCT( gl_pixel_attrib );
+ memcpy( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
+ /* push the Read FBO's ReadBuffer state, not ctx->Pixel.ReadBuffer */
+ attr->ReadBuffer = ctx->ReadBuffer->ColorReadBuffer;
+ save_attrib_data(&head, GL_PIXEL_MODE_BIT, attr);
+ }
+
+ if (mask & GL_POINT_BIT) {
+ struct gl_point_attrib *attr;
+ attr = MALLOC_STRUCT( gl_point_attrib );
+ memcpy( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
+ save_attrib_data(&head, GL_POINT_BIT, attr);
+ }
+
+ if (mask & GL_POLYGON_BIT) {
+ struct gl_polygon_attrib *attr;
+ attr = MALLOC_STRUCT( gl_polygon_attrib );
+ memcpy( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
+ save_attrib_data(&head, GL_POLYGON_BIT, attr);
+ }
+
+ if (mask & GL_POLYGON_STIPPLE_BIT) {
+ GLuint *stipple;
+ stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
+ memcpy( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
+ save_attrib_data(&head, GL_POLYGON_STIPPLE_BIT, stipple);
+ }
+
+ if (mask & GL_SCISSOR_BIT) {
+ struct gl_scissor_attrib *attr;
+ attr = MALLOC_STRUCT( gl_scissor_attrib );
+ memcpy( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
+ save_attrib_data(&head, GL_SCISSOR_BIT, attr);
+ }
+
+ if (mask & GL_STENCIL_BUFFER_BIT) {
+ struct gl_stencil_attrib *attr;
+ attr = MALLOC_STRUCT( gl_stencil_attrib );
+ memcpy( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
+ save_attrib_data(&head, GL_STENCIL_BUFFER_BIT, attr);
+ }
+
+ if (mask & GL_TEXTURE_BIT) {
+ struct texture_state *texstate = CALLOC_STRUCT(texture_state);
+ GLuint u, tex;
+
+ if (!texstate) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glPushAttrib(GL_TEXTURE_BIT)");
+ goto end;
+ }
+
+ _mesa_lock_context_textures(ctx);
+
+ /* copy/save the bulk of texture state here */
+ memcpy(&texstate->Texture, &ctx->Texture, sizeof(ctx->Texture));
+
+ /* Save references to the currently bound texture objects so they don't
+ * accidentally get deleted while referenced in the attribute stack.
+ */
+ for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ _mesa_reference_texobj(&texstate->SavedTexRef[u][tex],
+ ctx->Texture.Unit[u].CurrentTex[tex]);
+ }
+ }
+
+ /* copy state/contents of the currently bound texture objects */
+ for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ _mesa_copy_texture_object(&texstate->SavedObj[u][tex],
+ ctx->Texture.Unit[u].CurrentTex[tex]);
+ }
+ }
+
+ _mesa_unlock_context_textures(ctx);
+
+ save_attrib_data(&head, GL_TEXTURE_BIT, texstate);
+ }
+
+ if (mask & GL_TRANSFORM_BIT) {
+ struct gl_transform_attrib *attr;
+ attr = MALLOC_STRUCT( gl_transform_attrib );
+ memcpy( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
+ save_attrib_data(&head, GL_TRANSFORM_BIT, attr);
+ }
+
+ if (mask & GL_VIEWPORT_BIT) {
+ struct gl_viewport_attrib *attr;
+ attr = MALLOC_STRUCT( gl_viewport_attrib );
+ memcpy( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
+ save_attrib_data(&head, GL_VIEWPORT_BIT, attr);
+ }
+
+ /* GL_ARB_multisample */
+ if (mask & GL_MULTISAMPLE_BIT_ARB) {
+ struct gl_multisample_attrib *attr;
+ attr = MALLOC_STRUCT( gl_multisample_attrib );
+ memcpy( attr, &ctx->Multisample, sizeof(struct gl_multisample_attrib) );
+ save_attrib_data(&head, GL_MULTISAMPLE_BIT_ARB, attr);
+ }
+
+end:
+ ctx->AttribStack[ctx->AttribStackDepth] = head;
+ ctx->AttribStackDepth++;
+}
+
+
+
+static void
+pop_enable_group(struct gl_context *ctx, const struct gl_enable_attrib *enable)
+{
+ const GLuint curTexUnitSave = ctx->Texture.CurrentUnit;
+ GLuint i;
+
+#define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
+ if ((VALUE) != (NEWVALUE)) { \
+ _mesa_set_enable( ctx, ENUM, (NEWVALUE) ); \
+ }
+
+ TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
+ if (ctx->Color.BlendEnabled != enable->Blend) {
+ if (ctx->Extensions.EXT_draw_buffers2) {
+ GLuint i;
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ _mesa_set_enablei(ctx, GL_BLEND, i, (enable->Blend >> i) & 1);
+ }
+ }
+ else {
+ _mesa_set_enable(ctx, GL_BLEND, (enable->Blend & 1));
+ }
+ }
+
+ for (i=0;i<MAX_CLIP_PLANES;i++) {
+ const GLuint mask = 1 << i;
+ if ((ctx->Transform.ClipPlanesEnabled & mask) != (enable->ClipPlanes & mask))
+ _mesa_set_enable(ctx, (GLenum) (GL_CLIP_PLANE0 + i),
+ (GLboolean) ((enable->ClipPlanes & mask) ? GL_TRUE : GL_FALSE));
+ }
+
+ TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial,
+ GL_COLOR_MATERIAL);
+ TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
+ TEST_AND_UPDATE(ctx->Transform.DepthClamp, enable->DepthClamp,
+ GL_DEPTH_CLAMP);
+ TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
+ TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
+ TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
+ TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
+ TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
+ TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple,
+ GL_LINE_STIPPLE);
+ TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp,
+ GL_INDEX_LOGIC_OP);
+ TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp,
+ GL_COLOR_LOGIC_OP);
+
+ TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
+ TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
+ TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
+ TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1,
+ GL_MAP1_TEXTURE_COORD_1);
+ TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2,
+ GL_MAP1_TEXTURE_COORD_2);
+ TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3,
+ GL_MAP1_TEXTURE_COORD_3);
+ TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4,
+ GL_MAP1_TEXTURE_COORD_4);
+ TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3,
+ GL_MAP1_VERTEX_3);
+ TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4,
+ GL_MAP1_VERTEX_4);
+ for (i = 0; i < 16; i++) {
+ TEST_AND_UPDATE(ctx->Eval.Map1Attrib[i], enable->Map1Attrib[i],
+ GL_MAP1_VERTEX_ATTRIB0_4_NV + i);
+ }
+
+ TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
+ TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
+ TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
+ TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1,
+ GL_MAP2_TEXTURE_COORD_1);
+ TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2,
+ GL_MAP2_TEXTURE_COORD_2);
+ TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3,
+ GL_MAP2_TEXTURE_COORD_3);
+ TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4,
+ GL_MAP2_TEXTURE_COORD_4);
+ TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3,
+ GL_MAP2_VERTEX_3);
+ TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4,
+ GL_MAP2_VERTEX_4);
+ for (i = 0; i < 16; i++) {
+ TEST_AND_UPDATE(ctx->Eval.Map2Attrib[i], enable->Map2Attrib[i],
+ GL_MAP2_VERTEX_ATTRIB0_4_NV + i);
+ }
+
+ TEST_AND_UPDATE(ctx->Eval.AutoNormal, enable->AutoNormal, GL_AUTO_NORMAL);
+ TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
+ TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals,
+ GL_RESCALE_NORMAL_EXT);
+ TEST_AND_UPDATE(ctx->Transform.RasterPositionUnclipped,
+ enable->RasterPositionUnclipped,
+ GL_RASTER_POSITION_UNCLIPPED_IBM);
+ TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth,
+ GL_POINT_SMOOTH);
+ if (ctx->Extensions.NV_point_sprite || ctx->Extensions.ARB_point_sprite) {
+ TEST_AND_UPDATE(ctx->Point.PointSprite, enable->PointSprite,
+ GL_POINT_SPRITE_NV);
+ }
+ TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint,
+ GL_POLYGON_OFFSET_POINT);
+ TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine,
+ GL_POLYGON_OFFSET_LINE);
+ TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill,
+ GL_POLYGON_OFFSET_FILL);
+ TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth,
+ GL_POLYGON_SMOOTH);
+ TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple,
+ GL_POLYGON_STIPPLE);
+ TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
+ TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
+ if (ctx->Extensions.EXT_stencil_two_side) {
+ TEST_AND_UPDATE(ctx->Stencil.TestTwoSide, enable->StencilTwoSide, GL_STENCIL_TEST_TWO_SIDE_EXT);
+ }
+ TEST_AND_UPDATE(ctx->Multisample.Enabled, enable->MultisampleEnabled,
+ GL_MULTISAMPLE_ARB);
+ TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToCoverage,
+ enable->SampleAlphaToCoverage,
+ GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);
+ TEST_AND_UPDATE(ctx->Multisample.SampleAlphaToOne,
+ enable->SampleAlphaToOne,
+ GL_SAMPLE_ALPHA_TO_ONE_ARB);
+ TEST_AND_UPDATE(ctx->Multisample.SampleCoverage,
+ enable->SampleCoverage,
+ GL_SAMPLE_COVERAGE_ARB);
+ TEST_AND_UPDATE(ctx->Multisample.SampleCoverageInvert,
+ enable->SampleCoverageInvert,
+ GL_SAMPLE_COVERAGE_INVERT_ARB);
+ /* GL_ARB_vertex_program, GL_NV_vertex_program */
+ TEST_AND_UPDATE(ctx->VertexProgram.Enabled,
+ enable->VertexProgram,
+ GL_VERTEX_PROGRAM_ARB);
+ TEST_AND_UPDATE(ctx->VertexProgram.PointSizeEnabled,
+ enable->VertexProgramPointSize,
+ GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
+ TEST_AND_UPDATE(ctx->VertexProgram.TwoSideEnabled,
+ enable->VertexProgramTwoSide,
+ GL_VERTEX_PROGRAM_TWO_SIDE_ARB);
+
+#undef TEST_AND_UPDATE
+
+ /* texture unit enables */
+ for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
+ const GLbitfield enabled = enable->Texture[i];
+ const GLbitfield genEnabled = enable->TexGen[i];
+
+ if (ctx->Texture.Unit[i].Enabled != enabled) {
+ _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
+
+ _mesa_set_enable(ctx, GL_TEXTURE_1D,
+ (enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_2D,
+ (enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_3D,
+ (enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE);
+ if (ctx->Extensions.NV_texture_rectangle) {
+ _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_ARB,
+ (enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ if (ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP,
+ (enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ if (ctx->Extensions.MESA_texture_array) {
+ _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT,
+ (enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT,
+ (enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ }
+
+ if (ctx->Texture.Unit[i].TexGenEnabled != genEnabled) {
+ _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_S,
+ (genEnabled & S_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_T,
+ (genEnabled & T_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_R,
+ (genEnabled & R_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q,
+ (genEnabled & Q_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ }
+
+ _mesa_ActiveTextureARB(GL_TEXTURE0 + curTexUnitSave);
+}
+
+
+/**
+ * Pop/restore texture attribute/group state.
+ */
+static void
+pop_texture_group(struct gl_context *ctx, struct texture_state *texstate)
+{
+ GLuint u;
+
+ _mesa_lock_context_textures(ctx);
+
+ for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
+ const struct gl_texture_unit *unit = &texstate->Texture.Unit[u];
+ GLuint tgt;
+
+ _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + u);
+ _mesa_set_enable(ctx, GL_TEXTURE_1D,
+ (unit->Enabled & TEXTURE_1D_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_2D,
+ (unit->Enabled & TEXTURE_2D_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_3D,
+ (unit->Enabled & TEXTURE_3D_BIT) ? GL_TRUE : GL_FALSE);
+ if (ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP_ARB,
+ (unit->Enabled & TEXTURE_CUBE_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ if (ctx->Extensions.NV_texture_rectangle) {
+ _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE_NV,
+ (unit->Enabled & TEXTURE_RECT_BIT) ? GL_TRUE : GL_FALSE);
+ }
+ if (ctx->Extensions.MESA_texture_array) {
+ _mesa_set_enable(ctx, GL_TEXTURE_1D_ARRAY_EXT,
+ (unit->Enabled & TEXTURE_1D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+ _mesa_set_enable(ctx, GL_TEXTURE_2D_ARRAY_EXT,
+ (unit->Enabled & TEXTURE_2D_ARRAY_BIT) ? GL_TRUE : GL_FALSE);
+ }
+
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->EnvMode);
+ _mesa_TexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, unit->EnvColor);
+ _mesa_TexGeni(GL_S, GL_TEXTURE_GEN_MODE, unit->GenS.Mode);
+ _mesa_TexGeni(GL_T, GL_TEXTURE_GEN_MODE, unit->GenT.Mode);
+ _mesa_TexGeni(GL_R, GL_TEXTURE_GEN_MODE, unit->GenR.Mode);
+ _mesa_TexGeni(GL_Q, GL_TEXTURE_GEN_MODE, unit->GenQ.Mode);
+ _mesa_TexGenfv(GL_S, GL_OBJECT_PLANE, unit->GenS.ObjectPlane);
+ _mesa_TexGenfv(GL_T, GL_OBJECT_PLANE, unit->GenT.ObjectPlane);
+ _mesa_TexGenfv(GL_R, GL_OBJECT_PLANE, unit->GenR.ObjectPlane);
+ _mesa_TexGenfv(GL_Q, GL_OBJECT_PLANE, unit->GenQ.ObjectPlane);
+ /* Eye plane done differently to avoid re-transformation */
+ {
+ struct gl_texture_unit *destUnit = &ctx->Texture.Unit[u];
+ COPY_4FV(destUnit->GenS.EyePlane, unit->GenS.EyePlane);
+ COPY_4FV(destUnit->GenT.EyePlane, unit->GenT.EyePlane);
+ COPY_4FV(destUnit->GenR.EyePlane, unit->GenR.EyePlane);
+ COPY_4FV(destUnit->GenQ.EyePlane, unit->GenQ.EyePlane);
+ if (ctx->Driver.TexGen) {
+ ctx->Driver.TexGen(ctx, GL_S, GL_EYE_PLANE, unit->GenS.EyePlane);
+ ctx->Driver.TexGen(ctx, GL_T, GL_EYE_PLANE, unit->GenT.EyePlane);
+ ctx->Driver.TexGen(ctx, GL_R, GL_EYE_PLANE, unit->GenR.EyePlane);
+ ctx->Driver.TexGen(ctx, GL_Q, GL_EYE_PLANE, unit->GenQ.EyePlane);
+ }
+ }
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_S,
+ ((unit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE));
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_T,
+ ((unit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE));
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_R,
+ ((unit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE));
+ _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q,
+ ((unit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE));
+ if (ctx->Extensions.EXT_texture_lod_bias) {
+ _mesa_TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
+ GL_TEXTURE_LOD_BIAS_EXT, unit->LodBias);
+ }
+ if (ctx->Extensions.EXT_texture_env_combine ||
+ ctx->Extensions.ARB_texture_env_combine) {
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB,
+ unit->Combine.ModeRGB);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA,
+ unit->Combine.ModeA);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB,
+ unit->Combine.SourceRGB[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB,
+ unit->Combine.SourceRGB[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB,
+ unit->Combine.SourceRGB[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA,
+ unit->Combine.SourceA[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA,
+ unit->Combine.SourceA[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA,
+ unit->Combine.SourceA[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB,
+ unit->Combine.OperandRGB[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB,
+ unit->Combine.OperandRGB[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB,
+ unit->Combine.OperandRGB[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA,
+ unit->Combine.OperandA[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA,
+ unit->Combine.OperandA[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA,
+ unit->Combine.OperandA[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE,
+ 1 << unit->Combine.ScaleShiftRGB);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
+ 1 << unit->Combine.ScaleShiftA);
+ }
+
+ /* Restore texture object state for each target */
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+ const struct gl_texture_object *obj = NULL;
+ GLenum target;
+
+ obj = &texstate->SavedObj[u][tgt];
+
+ /* don't restore state for unsupported targets to prevent
+ * raising GL errors.
+ */
+ if (obj->Target == GL_TEXTURE_CUBE_MAP_ARB &&
+ !ctx->Extensions.ARB_texture_cube_map) {
+ continue;
+ }
+ else if (obj->Target == GL_TEXTURE_RECTANGLE_NV &&
+ !ctx->Extensions.NV_texture_rectangle) {
+ continue;
+ }
+ else if ((obj->Target == GL_TEXTURE_1D_ARRAY_EXT ||
+ obj->Target == GL_TEXTURE_2D_ARRAY_EXT) &&
+ !ctx->Extensions.MESA_texture_array) {
+ continue;
+ }
+
+ target = obj->Target;
+
+ _mesa_BindTexture(target, obj->Name);
+
+ _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, obj->BorderColor.f);
+ _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT);
+ _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, obj->WrapR);
+ _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, obj->MinFilter);
+ _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, obj->MagFilter);
+ _mesa_TexParameterf(target, GL_TEXTURE_MIN_LOD, obj->MinLod);
+ _mesa_TexParameterf(target, GL_TEXTURE_MAX_LOD, obj->MaxLod);
+ _mesa_TexParameterf(target, GL_TEXTURE_LOD_BIAS, obj->LodBias);
+ _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, obj->BaseLevel);
+ if (target != GL_TEXTURE_RECTANGLE_ARB)
+ _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, obj->MaxLevel);
+ if (ctx->Extensions.EXT_texture_filter_anisotropic) {
+ _mesa_TexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT,
+ obj->MaxAnisotropy);
+ }
+ if (ctx->Extensions.ARB_shadow_ambient) {
+ _mesa_TexParameterf(target, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB,
+ obj->CompareFailValue);
+ }
+ }
+
+ /* remove saved references to the texture objects */
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+ _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL);
+ }
+ }
+
+ _mesa_ActiveTextureARB(GL_TEXTURE0_ARB + texstate->Texture.CurrentUnit);
+
+ _mesa_unlock_context_textures(ctx);
+}
+
+
+/*
+ * This function is kind of long just because we have to call a lot
+ * of device driver functions to update device driver state.
+ *
+ * XXX As it is now, most of the pop-code calls immediate-mode Mesa functions
+ * in order to restore GL state. This isn't terribly efficient but it
+ * ensures that dirty flags and any derived state gets updated correctly.
+ * We could at least check if the value to restore equals the current value
+ * and then skip the Mesa call.
+ */
+void GLAPIENTRY
+_mesa_PopAttrib(void)
+{
+ struct gl_attrib_node *attr, *next;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->AttribStackDepth == 0) {
+ _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
+ return;
+ }
+
+ ctx->AttribStackDepth--;
+ attr = ctx->AttribStack[ctx->AttribStackDepth];
+
+ while (attr) {
+
+ if (MESA_VERBOSE & VERBOSE_API) {
+ _mesa_debug(ctx, "glPopAttrib %s\n",
+ _mesa_lookup_enum_by_nr(attr->kind));
+ }
+
+ switch (attr->kind) {
+ case GL_ACCUM_BUFFER_BIT:
+ {
+ const struct gl_accum_attrib *accum;
+ accum = (const struct gl_accum_attrib *) attr->data;
+ _mesa_ClearAccum(accum->ClearColor[0],
+ accum->ClearColor[1],
+ accum->ClearColor[2],
+ accum->ClearColor[3]);
+ }
+ break;
+ case GL_COLOR_BUFFER_BIT:
+ {
+ const struct gl_colorbuffer_attrib *color;
+
+ color = (const struct gl_colorbuffer_attrib *) attr->data;
+ _mesa_ClearIndex((GLfloat) color->ClearIndex);
+ _mesa_ClearColor(color->ClearColor[0],
+ color->ClearColor[1],
+ color->ClearColor[2],
+ color->ClearColor[3]);
+ _mesa_IndexMask(color->IndexMask);
+ if (!ctx->Extensions.EXT_draw_buffers2) {
+ _mesa_ColorMask((GLboolean) (color->ColorMask[0][0] != 0),
+ (GLboolean) (color->ColorMask[0][1] != 0),
+ (GLboolean) (color->ColorMask[0][2] != 0),
+ (GLboolean) (color->ColorMask[0][3] != 0));
+ }
+ else {
+ GLuint i;
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ _mesa_ColorMaskIndexed(i,
+ (GLboolean) (color->ColorMask[i][0] != 0),
+ (GLboolean) (color->ColorMask[i][1] != 0),
+ (GLboolean) (color->ColorMask[i][2] != 0),
+ (GLboolean) (color->ColorMask[i][3] != 0));
+ }
+ }
+ {
+ /* Need to determine if more than one color output is
+ * specified. If so, call glDrawBuffersARB, else call
+ * glDrawBuffer(). This is a subtle, but essential point
+ * since GL_FRONT (for example) is illegal for the former
+ * function, but legal for the later.
+ */
+ GLboolean multipleBuffers = GL_FALSE;
+ GLuint i;
+
+ for (i = 1; i < ctx->Const.MaxDrawBuffers; i++) {
+ if (color->DrawBuffer[i] != GL_NONE) {
+ multipleBuffers = GL_TRUE;
+ break;
+ }
+ }
+ /* Call the API_level functions, not _mesa_drawbuffers()
+ * since we need to do error checking on the pop'd
+ * GL_DRAW_BUFFER.
+ * Ex: if GL_FRONT were pushed, but we're popping with a
+ * user FBO bound, GL_FRONT will be illegal and we'll need
+ * to record that error. Per OpenGL ARB decision.
+ */
+ if (multipleBuffers)
+ _mesa_DrawBuffersARB(ctx->Const.MaxDrawBuffers,
+ color->DrawBuffer);
+ else
+ _mesa_DrawBuffer(color->DrawBuffer[0]);
+ }
+ _mesa_set_enable(ctx, GL_ALPHA_TEST, color->AlphaEnabled);
+ _mesa_AlphaFunc(color->AlphaFunc, color->AlphaRef);
+ if (ctx->Color.BlendEnabled != color->BlendEnabled) {
+ if (ctx->Extensions.EXT_draw_buffers2) {
+ GLuint i;
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ _mesa_set_enablei(ctx, GL_BLEND, i,
+ (color->BlendEnabled >> i) & 1);
+ }
+ }
+ else {
+ _mesa_set_enable(ctx, GL_BLEND, (color->BlendEnabled & 1));
+ }
+ }
+ if (ctx->Color._BlendFuncPerBuffer ||
+ ctx->Color._BlendEquationPerBuffer) {
+ /* set blend per buffer */
+ GLuint buf;
+ for (buf = 0; buf < ctx->Const.MaxDrawBuffers; buf++) {
+ _mesa_BlendFuncSeparatei(buf, color->Blend[buf].SrcRGB,
+ color->Blend[buf].DstRGB,
+ color->Blend[buf].SrcA,
+ color->Blend[buf].DstA);
+ _mesa_BlendEquationSeparatei(buf,
+ color->Blend[buf].EquationRGB,
+ color->Blend[buf].EquationA);
+ }
+ }
+ else {
+ /* set same blend modes for all buffers */
+ _mesa_BlendFuncSeparateEXT(color->Blend[0].SrcRGB,
+ color->Blend[0].DstRGB,
+ color->Blend[0].SrcA,
+ color->Blend[0].DstA);
+ /* This special case is because glBlendEquationSeparateEXT
+ * cannot take GL_LOGIC_OP as a parameter.
+ */
+ if (color->Blend[0].EquationRGB ==
+ color->Blend[0].EquationA) {
+ _mesa_BlendEquation(color->Blend[0].EquationRGB);
+ }
+ else {
+ _mesa_BlendEquationSeparateEXT(
+ color->Blend[0].EquationRGB,
+ color->Blend[0].EquationA);
+ }
+ }
+ _mesa_BlendColor(color->BlendColor[0],
+ color->BlendColor[1],
+ color->BlendColor[2],
+ color->BlendColor[3]);
+ _mesa_LogicOp(color->LogicOp);
+ _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP,
+ color->ColorLogicOpEnabled);
+ _mesa_set_enable(ctx, GL_INDEX_LOGIC_OP,
+ color->IndexLogicOpEnabled);
+ _mesa_set_enable(ctx, GL_DITHER, color->DitherFlag);
+ }
+ break;
+ case GL_CURRENT_BIT:
+ FLUSH_CURRENT( ctx, 0 );
+ memcpy( &ctx->Current, attr->data,
+ sizeof(struct gl_current_attrib) );
+ break;
+ case GL_DEPTH_BUFFER_BIT:
+ {
+ const struct gl_depthbuffer_attrib *depth;
+ depth = (const struct gl_depthbuffer_attrib *) attr->data;
+ _mesa_DepthFunc(depth->Func);
+ _mesa_ClearDepth(depth->Clear);
+ _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test);
+ _mesa_DepthMask(depth->Mask);
+ }
+ break;
+ case GL_ENABLE_BIT:
+ {
+ const struct gl_enable_attrib *enable;
+ enable = (const struct gl_enable_attrib *) attr->data;
+ pop_enable_group(ctx, enable);
+ ctx->NewState |= _NEW_ALL;
+ }
+ break;
+ case GL_EVAL_BIT:
+ memcpy( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
+ ctx->NewState |= _NEW_EVAL;
+ break;
+ case GL_FOG_BIT:
+ {
+ const struct gl_fog_attrib *fog;
+ fog = (const struct gl_fog_attrib *) attr->data;
+ _mesa_set_enable(ctx, GL_FOG, fog->Enabled);
+ _mesa_Fogfv(GL_FOG_COLOR, fog->Color);
+ _mesa_Fogf(GL_FOG_DENSITY, fog->Density);
+ _mesa_Fogf(GL_FOG_START, fog->Start);
+ _mesa_Fogf(GL_FOG_END, fog->End);
+ _mesa_Fogf(GL_FOG_INDEX, fog->Index);
+ _mesa_Fogi(GL_FOG_MODE, fog->Mode);
+ }
+ break;
+ case GL_HINT_BIT:
+ {
+ const struct gl_hint_attrib *hint;
+ hint = (const struct gl_hint_attrib *) attr->data;
+ _mesa_Hint(GL_PERSPECTIVE_CORRECTION_HINT,
+ hint->PerspectiveCorrection );
+ _mesa_Hint(GL_POINT_SMOOTH_HINT, hint->PointSmooth);
+ _mesa_Hint(GL_LINE_SMOOTH_HINT, hint->LineSmooth);
+ _mesa_Hint(GL_POLYGON_SMOOTH_HINT, hint->PolygonSmooth);
+ _mesa_Hint(GL_FOG_HINT, hint->Fog);
+ _mesa_Hint(GL_CLIP_VOLUME_CLIPPING_HINT_EXT,
+ hint->ClipVolumeClipping);
+ _mesa_Hint(GL_TEXTURE_COMPRESSION_HINT_ARB,
+ hint->TextureCompression);
+ }
+ break;
+ case GL_LIGHTING_BIT:
+ {
+ GLuint i;
+ const struct gl_light_attrib *light;
+ light = (const struct gl_light_attrib *) attr->data;
+ /* lighting enable */
+ _mesa_set_enable(ctx, GL_LIGHTING, light->Enabled);
+ /* per-light state */
+ if (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top))
+ _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
+
+ for (i = 0; i < ctx->Const.MaxLights; i++) {
+ const struct gl_light *l = &light->Light[i];
+ _mesa_set_enable(ctx, GL_LIGHT0 + i, l->Enabled);
+ _mesa_light(ctx, i, GL_AMBIENT, l->Ambient);
+ _mesa_light(ctx, i, GL_DIFFUSE, l->Diffuse);
+ _mesa_light(ctx, i, GL_SPECULAR, l->Specular );
+ _mesa_light(ctx, i, GL_POSITION, l->EyePosition);
+ _mesa_light(ctx, i, GL_SPOT_DIRECTION, l->SpotDirection);
+ {
+ GLfloat p[4] = { 0 };
+ p[0] = l->SpotExponent;
+ _mesa_light(ctx, i, GL_SPOT_EXPONENT, p);
+ }
+ {
+ GLfloat p[4] = { 0 };
+ p[0] = l->SpotCutoff;
+ _mesa_light(ctx, i, GL_SPOT_CUTOFF, p);
+ }
+ {
+ GLfloat p[4] = { 0 };
+ p[0] = l->ConstantAttenuation;
+ _mesa_light(ctx, i, GL_CONSTANT_ATTENUATION, p);
+ }
+ {
+ GLfloat p[4] = { 0 };
+ p[0] = l->LinearAttenuation;
+ _mesa_light(ctx, i, GL_LINEAR_ATTENUATION, p);
+ }
+ {
+ GLfloat p[4] = { 0 };
+ p[0] = l->QuadraticAttenuation;
+ _mesa_light(ctx, i, GL_QUADRATIC_ATTENUATION, p);
+ }
+ }
+ /* light model */
+ _mesa_LightModelfv(GL_LIGHT_MODEL_AMBIENT,
+ light->Model.Ambient);
+ _mesa_LightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,
+ (GLfloat) light->Model.LocalViewer);
+ _mesa_LightModelf(GL_LIGHT_MODEL_TWO_SIDE,
+ (GLfloat) light->Model.TwoSide);
+ _mesa_LightModelf(GL_LIGHT_MODEL_COLOR_CONTROL,
+ (GLfloat) light->Model.ColorControl);
+ /* shade model */
+ _mesa_ShadeModel(light->ShadeModel);
+ /* color material */
+ _mesa_ColorMaterial(light->ColorMaterialFace,
+ light->ColorMaterialMode);
+ _mesa_set_enable(ctx, GL_COLOR_MATERIAL,
+ light->ColorMaterialEnabled);
+ /* materials */
+ memcpy(&ctx->Light.Material, &light->Material,
+ sizeof(struct gl_material));
+ }
+ break;
+ case GL_LINE_BIT:
+ {
+ const struct gl_line_attrib *line;
+ line = (const struct gl_line_attrib *) attr->data;
+ _mesa_set_enable(ctx, GL_LINE_SMOOTH, line->SmoothFlag);
+ _mesa_set_enable(ctx, GL_LINE_STIPPLE, line->StippleFlag);
+ _mesa_LineStipple(line->StippleFactor, line->StipplePattern);
+ _mesa_LineWidth(line->Width);
+ }
+ break;
+ case GL_LIST_BIT:
+ memcpy( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
+ break;
+ case GL_PIXEL_MODE_BIT:
+ memcpy( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
+ /* XXX what other pixel state needs to be set by function calls? */
+ _mesa_ReadBuffer(ctx->Pixel.ReadBuffer);
+ ctx->NewState |= _NEW_PIXEL;
+ break;
+ case GL_POINT_BIT:
+ {
+ const struct gl_point_attrib *point;
+ point = (const struct gl_point_attrib *) attr->data;
+ _mesa_PointSize(point->Size);
+ _mesa_set_enable(ctx, GL_POINT_SMOOTH, point->SmoothFlag);
+ if (ctx->Extensions.EXT_point_parameters) {
+ _mesa_PointParameterfv(GL_DISTANCE_ATTENUATION_EXT,
+ point->Params);
+ _mesa_PointParameterf(GL_POINT_SIZE_MIN_EXT,
+ point->MinSize);
+ _mesa_PointParameterf(GL_POINT_SIZE_MAX_EXT,
+ point->MaxSize);
+ _mesa_PointParameterf(GL_POINT_FADE_THRESHOLD_SIZE_EXT,
+ point->Threshold);
+ }
+ if (ctx->Extensions.NV_point_sprite
+ || ctx->Extensions.ARB_point_sprite) {
+ GLuint u;
+ for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
+ _mesa_TexEnvi(GL_POINT_SPRITE_NV, GL_COORD_REPLACE_NV,
+ (GLint) point->CoordReplace[u]);
+ }
+ _mesa_set_enable(ctx, GL_POINT_SPRITE_NV,point->PointSprite);
+ if (ctx->Extensions.NV_point_sprite)
+ _mesa_PointParameteri(GL_POINT_SPRITE_R_MODE_NV,
+ ctx->Point.SpriteRMode);
+ _mesa_PointParameterf(GL_POINT_SPRITE_COORD_ORIGIN,
+ (GLfloat)ctx->Point.SpriteOrigin);
+ }
+ }
+ break;
+ case GL_POLYGON_BIT:
+ {
+ const struct gl_polygon_attrib *polygon;
+ polygon = (const struct gl_polygon_attrib *) attr->data;
+ _mesa_CullFace(polygon->CullFaceMode);
+ _mesa_FrontFace(polygon->FrontFace);
+ _mesa_PolygonMode(GL_FRONT, polygon->FrontMode);
+ _mesa_PolygonMode(GL_BACK, polygon->BackMode);
+ _mesa_PolygonOffset(polygon->OffsetFactor,
+ polygon->OffsetUnits);
+ _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, polygon->SmoothFlag);
+ _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, polygon->StippleFlag);
+ _mesa_set_enable(ctx, GL_CULL_FACE, polygon->CullFlag);
+ _mesa_set_enable(ctx, GL_POLYGON_OFFSET_POINT,
+ polygon->OffsetPoint);
+ _mesa_set_enable(ctx, GL_POLYGON_OFFSET_LINE,
+ polygon->OffsetLine);
+ _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL,
+ polygon->OffsetFill);
+ }
+ break;
+ case GL_POLYGON_STIPPLE_BIT:
+ memcpy( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
+ ctx->NewState |= _NEW_POLYGONSTIPPLE;
+ if (ctx->Driver.PolygonStipple)
+ ctx->Driver.PolygonStipple( ctx, (const GLubyte *) attr->data );
+ break;
+ case GL_SCISSOR_BIT:
+ {
+ const struct gl_scissor_attrib *scissor;
+ scissor = (const struct gl_scissor_attrib *) attr->data;
+ _mesa_Scissor(scissor->X, scissor->Y,
+ scissor->Width, scissor->Height);
+ _mesa_set_enable(ctx, GL_SCISSOR_TEST, scissor->Enabled);
+ }
+ break;
+ case GL_STENCIL_BUFFER_BIT:
+ {
+ const struct gl_stencil_attrib *stencil;
+ stencil = (const struct gl_stencil_attrib *) attr->data;
+ _mesa_set_enable(ctx, GL_STENCIL_TEST, stencil->Enabled);
+ _mesa_ClearStencil(stencil->Clear);
+ if (ctx->Extensions.EXT_stencil_two_side) {
+ _mesa_set_enable(ctx, GL_STENCIL_TEST_TWO_SIDE_EXT,
+ stencil->TestTwoSide);
+ _mesa_ActiveStencilFaceEXT(stencil->ActiveFace
+ ? GL_BACK : GL_FRONT);
+ }
+ /* front state */
+ _mesa_StencilFuncSeparate(GL_FRONT,
+ stencil->Function[0],
+ stencil->Ref[0],
+ stencil->ValueMask[0]);
+ _mesa_StencilMaskSeparate(GL_FRONT, stencil->WriteMask[0]);
+ _mesa_StencilOpSeparate(GL_FRONT, stencil->FailFunc[0],
+ stencil->ZFailFunc[0],
+ stencil->ZPassFunc[0]);
+ /* back state */
+ _mesa_StencilFuncSeparate(GL_BACK,
+ stencil->Function[1],
+ stencil->Ref[1],
+ stencil->ValueMask[1]);
+ _mesa_StencilMaskSeparate(GL_BACK, stencil->WriteMask[1]);
+ _mesa_StencilOpSeparate(GL_BACK, stencil->FailFunc[1],
+ stencil->ZFailFunc[1],
+ stencil->ZPassFunc[1]);
+ }
+ break;
+ case GL_TRANSFORM_BIT:
+ {
+ GLuint i;
+ const struct gl_transform_attrib *xform;
+ xform = (const struct gl_transform_attrib *) attr->data;
+ _mesa_MatrixMode(xform->MatrixMode);
+ if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
+ _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
+
+ /* restore clip planes */
+ for (i = 0; i < MAX_CLIP_PLANES; i++) {
+ const GLuint mask = 1 << i;
+ const GLfloat *eyePlane = xform->EyeUserPlane[i];
+ COPY_4V(ctx->Transform.EyeUserPlane[i], eyePlane);
+ if (xform->ClipPlanesEnabled & mask) {
+ _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE);
+ }
+ else {
+ _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE);
+ }
+ if (ctx->Driver.ClipPlane)
+ ctx->Driver.ClipPlane( ctx, GL_CLIP_PLANE0 + i, eyePlane );
+ }
+
+ /* normalize/rescale */
+ if (xform->Normalize != ctx->Transform.Normalize)
+ _mesa_set_enable(ctx, GL_NORMALIZE,ctx->Transform.Normalize);
+ if (xform->RescaleNormals != ctx->Transform.RescaleNormals)
+ _mesa_set_enable(ctx, GL_RESCALE_NORMAL_EXT,
+ ctx->Transform.RescaleNormals);
+ if (xform->DepthClamp != ctx->Transform.DepthClamp)
+ _mesa_set_enable(ctx, GL_DEPTH_CLAMP,
+ ctx->Transform.DepthClamp);
+ }
+ break;
+ case GL_TEXTURE_BIT:
+ /* Take care of texture object reference counters */
+ {
+ struct texture_state *texstate
+ = (struct texture_state *) attr->data;
+ pop_texture_group(ctx, texstate);
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ break;
+ case GL_VIEWPORT_BIT:
+ {
+ const struct gl_viewport_attrib *vp;
+ vp = (const struct gl_viewport_attrib *) attr->data;
+ _mesa_Viewport(vp->X, vp->Y, vp->Width, vp->Height);
+ _mesa_DepthRange(vp->Near, vp->Far);
+ }
+ break;
+ case GL_MULTISAMPLE_BIT_ARB:
+ {
+ const struct gl_multisample_attrib *ms;
+ ms = (const struct gl_multisample_attrib *) attr->data;
+ _mesa_SampleCoverageARB(ms->SampleCoverageValue,
+ ms->SampleCoverageInvert);
+ }
+ break;
+
+ default:
+ _mesa_problem( ctx, "Bad attrib flag in PopAttrib");
+ break;
+ }
+
+ next = attr->next;
+ FREE( attr->data );
+ FREE( attr );
+ attr = next;
+ }
+}
+
+
+/**
+ * Helper for incrementing/decrementing vertex buffer object reference
+ * counts when pushing/popping the GL_CLIENT_VERTEX_ARRAY_BIT attribute group.
+ */
+static void
+adjust_buffer_object_ref_counts(struct gl_array_object *arrayObj, GLint step)
+{
+ GLuint i;
+
+ arrayObj->Vertex.BufferObj->RefCount += step;
+ arrayObj->Weight.BufferObj->RefCount += step;
+ arrayObj->Normal.BufferObj->RefCount += step;
+ arrayObj->Color.BufferObj->RefCount += step;
+ arrayObj->SecondaryColor.BufferObj->RefCount += step;
+ arrayObj->FogCoord.BufferObj->RefCount += step;
+ arrayObj->Index.BufferObj->RefCount += step;
+ arrayObj->EdgeFlag.BufferObj->RefCount += step;
+ for (i = 0; i < Elements(arrayObj->TexCoord); i++)
+ arrayObj->TexCoord[i].BufferObj->RefCount += step;
+ for (i = 0; i < Elements(arrayObj->VertexAttrib); i++)
+ arrayObj->VertexAttrib[i].BufferObj->RefCount += step;
+}
+
+
+/**
+ * Copy gl_pixelstore_attrib from src to dst, updating buffer
+ * object refcounts.
+ */
+static void
+copy_pixelstore(struct gl_context *ctx,
+ struct gl_pixelstore_attrib *dst,
+ const struct gl_pixelstore_attrib *src)
+{
+ dst->Alignment = src->Alignment;
+ dst->RowLength = src->RowLength;
+ dst->SkipPixels = src->SkipPixels;
+ dst->SkipRows = src->SkipRows;
+ dst->ImageHeight = src->ImageHeight;
+ dst->SkipImages = src->SkipImages;
+ dst->SwapBytes = src->SwapBytes;
+ dst->LsbFirst = src->LsbFirst;
+ dst->ClientStorage = src->ClientStorage;
+ dst->Invert = src->Invert;
+ _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
+}
+
+
+#define GL_CLIENT_PACK_BIT (1<<20)
+#define GL_CLIENT_UNPACK_BIT (1<<21)
+
+
+void GLAPIENTRY
+_mesa_PushClientAttrib(GLbitfield mask)
+{
+ struct gl_attrib_node *head;
+
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (ctx->ClientAttribStackDepth >= MAX_CLIENT_ATTRIB_STACK_DEPTH) {
+ _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
+ return;
+ }
+
+ /* Build linked list of attribute nodes which save all attribute
+ * groups specified by the mask.
+ */
+ head = NULL;
+
+ if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
+ struct gl_pixelstore_attrib *attr;
+ /* packing attribs */
+ attr = CALLOC_STRUCT( gl_pixelstore_attrib );
+ copy_pixelstore(ctx, attr, &ctx->Pack);
+ save_attrib_data(&head, GL_CLIENT_PACK_BIT, attr);
+ /* unpacking attribs */
+ attr = CALLOC_STRUCT( gl_pixelstore_attrib );
+ copy_pixelstore(ctx, attr, &ctx->Unpack);
+ save_attrib_data(&head, GL_CLIENT_UNPACK_BIT, attr);
+ }
+
+ if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
+ struct gl_array_attrib *attr;
+ struct gl_array_object *obj;
+
+ attr = MALLOC_STRUCT( gl_array_attrib );
+ obj = MALLOC_STRUCT( gl_array_object );
+
+#if FEATURE_ARB_vertex_buffer_object
+ /* increment ref counts since we're copying pointers to these objects */
+ ctx->Array.ArrayBufferObj->RefCount++;
+ ctx->Array.ElementArrayBufferObj->RefCount++;
+#endif
+
+ memcpy( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
+ memcpy( obj, ctx->Array.ArrayObj, sizeof(struct gl_array_object) );
+
+ attr->ArrayObj = obj;
+
+ save_attrib_data(&head, GL_CLIENT_VERTEX_ARRAY_BIT, attr);
+
+ /* bump reference counts on buffer objects */
+ adjust_buffer_object_ref_counts(ctx->Array.ArrayObj, 1);
+ }
+
+ ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
+ ctx->ClientAttribStackDepth++;
+}
+
+
+
+
+void GLAPIENTRY
+_mesa_PopClientAttrib(void)
+{
+ struct gl_attrib_node *node, *next;
+
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->ClientAttribStackDepth == 0) {
+ _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
+ return;
+ }
+
+ ctx->ClientAttribStackDepth--;
+ node = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
+
+ while (node) {
+ switch (node->kind) {
+ case GL_CLIENT_PACK_BIT:
+ {
+ struct gl_pixelstore_attrib *store =
+ (struct gl_pixelstore_attrib *) node->data;
+ copy_pixelstore(ctx, &ctx->Pack, store);
+ _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL);
+ }
+ ctx->NewState |= _NEW_PACKUNPACK;
+ break;
+ case GL_CLIENT_UNPACK_BIT:
+ {
+ struct gl_pixelstore_attrib *store =
+ (struct gl_pixelstore_attrib *) node->data;
+ copy_pixelstore(ctx, &ctx->Unpack, store);
+ _mesa_reference_buffer_object(ctx, &store->BufferObj, NULL);
+ }
+ ctx->NewState |= _NEW_PACKUNPACK;
+ break;
+ case GL_CLIENT_VERTEX_ARRAY_BIT: {
+ struct gl_array_attrib * data =
+ (struct gl_array_attrib *) node->data;
+
+ adjust_buffer_object_ref_counts(ctx->Array.ArrayObj, -1);
+
+ ctx->Array.ActiveTexture = data->ActiveTexture;
+ if (data->LockCount != 0)
+ _mesa_LockArraysEXT(data->LockFirst, data->LockCount);
+ else if (ctx->Array.LockCount)
+ _mesa_UnlockArraysEXT();
+
+ _mesa_BindVertexArrayAPPLE( data->ArrayObj->Name );
+
+#if FEATURE_ARB_vertex_buffer_object
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+ data->ArrayBufferObj->Name);
+ _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB,
+ data->ElementArrayBufferObj->Name);
+#endif
+
+ memcpy( ctx->Array.ArrayObj, data->ArrayObj,
+ sizeof( struct gl_array_object ) );
+
+ FREE( data->ArrayObj );
+
+ /* FIXME: Should some bits in ctx->Array->NewState also be set
+ * FIXME: here? It seems like it should be set to inclusive-or
+ * FIXME: of the old ArrayObj->_Enabled and the new _Enabled.
+ */
+
+ ctx->NewState |= _NEW_ARRAY;
+ break;
+ }
+ default:
+ _mesa_problem( ctx, "Bad attrib flag in PopClientAttrib");
+ break;
+ }
+
+ next = node->next;
+ FREE( node->data );
+ FREE( node );
+ node = next;
+ }
+}
+
+
+void
+_mesa_init_attrib_dispatch(struct _glapi_table *disp)
+{
+ SET_PopAttrib(disp, _mesa_PopAttrib);
+ SET_PushAttrib(disp, _mesa_PushAttrib);
+ SET_PopClientAttrib(disp, _mesa_PopClientAttrib);
+ SET_PushClientAttrib(disp, _mesa_PushClientAttrib);
+}
+
+
+#endif /* FEATURE_attrib_stack */
+
+
+/**
+ * Free any attribute state data that might be attached to the context.
+ */
+void
+_mesa_free_attrib_data(struct gl_context *ctx)
+{
+ while (ctx->AttribStackDepth > 0) {
+ struct gl_attrib_node *attr, *next;
+
+ ctx->AttribStackDepth--;
+ attr = ctx->AttribStack[ctx->AttribStackDepth];
+
+ while (attr) {
+ if (attr->kind == GL_TEXTURE_BIT) {
+ struct texture_state *texstate = (struct texture_state*)attr->data;
+ GLuint u, tgt;
+ /* clear references to the saved texture objects */
+ for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+ _mesa_reference_texobj(&texstate->SavedTexRef[u][tgt], NULL);
+ }
+ }
+ }
+ else {
+ /* any other chunks of state that requires special handling? */
+ }
+
+ next = attr->next;
+ free(attr->data);
+ free(attr);
+ attr = next;
+ }
+ }
+}
+
+
+void _mesa_init_attrib( struct gl_context *ctx )
+{
+ /* Renderer and client attribute stacks */
+ ctx->AttribStackDepth = 0;
+ ctx->ClientAttribStackDepth = 0;
+}
diff --git a/mesalib/src/mesa/main/blend.c b/mesalib/src/mesa/main/blend.c index c74a16803..22031fd2a 100644 --- a/mesalib/src/mesa/main/blend.c +++ b/mesalib/src/mesa/main/blend.c @@ -1,822 +1,822 @@ -/** - * \file blend.c - * Blending operations. - */ - -/* - * Mesa 3-D graphics library - * Version: 6.5.1 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - - -#include "glheader.h" -#include "blend.h" -#include "context.h" -#include "enums.h" -#include "macros.h" -#include "mtypes.h" - - - -/** - * Check if given blend source factor is legal. - * \return GL_TRUE if legal, GL_FALSE otherwise. - */ -static GLboolean -legal_src_factor(const struct gl_context *ctx, GLenum factor) -{ - switch (factor) { - case GL_SRC_COLOR: - case GL_ONE_MINUS_SRC_COLOR: - return ctx->Extensions.NV_blend_square; - case GL_ZERO: - case GL_ONE: - case GL_DST_COLOR: - case GL_ONE_MINUS_DST_COLOR: - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: - case GL_DST_ALPHA: - case GL_ONE_MINUS_DST_ALPHA: - case GL_SRC_ALPHA_SATURATE: - case GL_CONSTANT_COLOR: - case GL_ONE_MINUS_CONSTANT_COLOR: - case GL_CONSTANT_ALPHA: - case GL_ONE_MINUS_CONSTANT_ALPHA: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Check if given blend destination factor is legal. - * \return GL_TRUE if legal, GL_FALSE otherwise. - */ -static GLboolean -legal_dst_factor(const struct gl_context *ctx, GLenum factor) -{ - switch (factor) { - case GL_DST_COLOR: - case GL_ONE_MINUS_DST_COLOR: - return ctx->Extensions.NV_blend_square; - case GL_ZERO: - case GL_ONE: - case GL_SRC_COLOR: - case GL_ONE_MINUS_SRC_COLOR: - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: - case GL_DST_ALPHA: - case GL_ONE_MINUS_DST_ALPHA: - case GL_CONSTANT_COLOR: - case GL_ONE_MINUS_CONSTANT_COLOR: - case GL_CONSTANT_ALPHA: - case GL_ONE_MINUS_CONSTANT_ALPHA: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Check if src/dest RGB/A blend factors are legal. If not generate - * a GL error. - * \return GL_TRUE if factors are legal, GL_FALSE otherwise. - */ -static GLboolean -validate_blend_factors(struct gl_context *ctx, const char *func, - GLenum sfactorRGB, GLenum dfactorRGB, - GLenum sfactorA, GLenum dfactorA) -{ - if (!legal_src_factor(ctx, sfactorRGB)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "%s(sfactorRGB = %s)", func, - _mesa_lookup_enum_by_nr(sfactorRGB)); - return GL_FALSE; - } - - if (!legal_dst_factor(ctx, dfactorRGB)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "%s(dfactorRGB = %s)", func, - _mesa_lookup_enum_by_nr(dfactorRGB)); - return GL_FALSE; - } - - if (sfactorA != sfactorRGB && !legal_src_factor(ctx, sfactorA)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "%s(sfactorA = %s)", func, - _mesa_lookup_enum_by_nr(sfactorA)); - return GL_FALSE; - } - - if (dfactorA != dfactorRGB && !legal_dst_factor(ctx, dfactorA)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "%s(dfactorA = %s)", func, - _mesa_lookup_enum_by_nr(dfactorA)); - return GL_FALSE; - } - - return GL_TRUE; -} - - -/** - * Specify the blending operation. - * - * \param sfactor source factor operator. - * \param dfactor destination factor operator. - * - * \sa glBlendFunc, glBlendFuncSeparateEXT - */ -void GLAPIENTRY -_mesa_BlendFunc( GLenum sfactor, GLenum dfactor ) -{ - _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor); -} - - -/** - * Set the separate blend source/dest factors for all draw buffers. - * - * \param sfactorRGB RGB source factor operator. - * \param dfactorRGB RGB destination factor operator. - * \param sfactorA alpha source factor operator. - * \param dfactorA alpha destination factor operator. - */ -void GLAPIENTRY -_mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB, - GLenum sfactorA, GLenum dfactorA ) -{ - GLuint buf, numBuffers; - GLboolean changed; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBlendFuncSeparate %s %s %s %s\n", - _mesa_lookup_enum_by_nr(sfactorRGB), - _mesa_lookup_enum_by_nr(dfactorRGB), - _mesa_lookup_enum_by_nr(sfactorA), - _mesa_lookup_enum_by_nr(dfactorA)); - - if (!validate_blend_factors(ctx, "glBlendFuncSeparate", - sfactorRGB, dfactorRGB, - sfactorA, dfactorA)) { - return; - } - - numBuffers = ctx->Extensions.ARB_draw_buffers_blend - ? ctx->Const.MaxDrawBuffers : 1; - - changed = GL_FALSE; - for (buf = 0; buf < numBuffers; buf++) { - if (ctx->Color.Blend[buf].SrcRGB != sfactorRGB || - ctx->Color.Blend[buf].DstRGB != dfactorRGB || - ctx->Color.Blend[buf].SrcA != sfactorA || - ctx->Color.Blend[buf].DstA != dfactorA) { - changed = GL_TRUE; - break; - } - } - if (!changed) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - - for (buf = 0; buf < numBuffers; buf++) { - ctx->Color.Blend[buf].SrcRGB = sfactorRGB; - ctx->Color.Blend[buf].DstRGB = dfactorRGB; - ctx->Color.Blend[buf].SrcA = sfactorA; - ctx->Color.Blend[buf].DstA = dfactorA; - } - ctx->Color._BlendFuncPerBuffer = GL_FALSE; - - if (ctx->Driver.BlendFuncSeparate) { - ctx->Driver.BlendFuncSeparate(ctx, sfactorRGB, dfactorRGB, - sfactorA, dfactorA); - } -} - - -#if _HAVE_FULL_GL - - -/** - * Set blend source/dest factors for one color buffer/target. - */ -void GLAPIENTRY -_mesa_BlendFunci(GLuint buf, GLenum sfactor, GLenum dfactor) -{ - _mesa_BlendFuncSeparatei(buf, sfactor, dfactor, sfactor, dfactor); -} - - -/** - * Set separate blend source/dest factors for one color buffer/target. - */ -void GLAPIENTRY -_mesa_BlendFuncSeparatei(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB, - GLenum sfactorA, GLenum dfactorA) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.ARB_draw_buffers_blend) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glBlendFunc[Separate]i()"); - return; - } - - if (buf >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)", - buf); - return; - } - - if (!validate_blend_factors(ctx, "glBlendFuncSeparatei", - sfactorRGB, dfactorRGB, - sfactorA, dfactorA)) { - return; - } - - if (ctx->Color.Blend[buf].SrcRGB == sfactorRGB && - ctx->Color.Blend[buf].DstRGB == dfactorRGB && - ctx->Color.Blend[buf].SrcA == sfactorA && - ctx->Color.Blend[buf].DstA == dfactorA) - return; /* no change */ - - FLUSH_VERTICES(ctx, _NEW_COLOR); - - ctx->Color.Blend[buf].SrcRGB = sfactorRGB; - ctx->Color.Blend[buf].DstRGB = dfactorRGB; - ctx->Color.Blend[buf].SrcA = sfactorA; - ctx->Color.Blend[buf].DstA = dfactorA; - ctx->Color._BlendFuncPerBuffer = GL_TRUE; - - if (ctx->Driver.BlendFuncSeparatei) { - ctx->Driver.BlendFuncSeparatei(ctx, buf, sfactorRGB, dfactorRGB, - sfactorA, dfactorA); - } -} - - -/** - * Check if given blend equation is legal. - * \return GL_TRUE if legal, GL_FALSE otherwise. - */ -static GLboolean -legal_blend_equation(const struct gl_context *ctx, - GLenum mode, GLboolean is_separate) -{ - switch (mode) { - case GL_FUNC_ADD: - return GL_TRUE; - case GL_MIN: - case GL_MAX: - return ctx->Extensions.EXT_blend_minmax; - case GL_LOGIC_OP: - /* glBlendEquationSeparate cannot take GL_LOGIC_OP as a parameter. - */ - return ctx->Extensions.EXT_blend_logic_op && !is_separate; - case GL_FUNC_SUBTRACT: - case GL_FUNC_REVERSE_SUBTRACT: - return ctx->Extensions.EXT_blend_subtract; - default: - return GL_FALSE; - } -} - - -/* This is really an extension function! */ -void GLAPIENTRY -_mesa_BlendEquation( GLenum mode ) -{ - GLuint buf, numBuffers; - GLboolean changed; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBlendEquation(%s)\n", - _mesa_lookup_enum_by_nr(mode)); - - if (!legal_blend_equation(ctx, mode, GL_FALSE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquation"); - return; - } - - numBuffers = ctx->Extensions.ARB_draw_buffers_blend - ? ctx->Const.MaxDrawBuffers : 1; - - changed = GL_FALSE; - for (buf = 0; buf < numBuffers; buf++) { - if (ctx->Color.Blend[buf].EquationRGB != mode || - ctx->Color.Blend[buf].EquationA != mode) { - changed = GL_TRUE; - break; - } - } - if (!changed) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - for (buf = 0; buf < numBuffers; buf++) { - ctx->Color.Blend[buf].EquationRGB = mode; - ctx->Color.Blend[buf].EquationA = mode; - } - ctx->Color._BlendEquationPerBuffer = GL_FALSE; - - if (ctx->Driver.BlendEquationSeparate) - (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode ); -} - - -/** - * Set blend equation for one color buffer/target. - */ -void GLAPIENTRY -_mesa_BlendEquationi(GLuint buf, GLenum mode) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBlendEquationi(%u, %s)\n", - buf, _mesa_lookup_enum_by_nr(mode)); - - if (buf >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)", - buf); - return; - } - - if (!legal_blend_equation(ctx, mode, GL_FALSE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationi"); - return; - } - - if (ctx->Color.Blend[buf].EquationRGB == mode && - ctx->Color.Blend[buf].EquationA == mode) - return; /* no change */ - - FLUSH_VERTICES(ctx, _NEW_COLOR); - ctx->Color.Blend[buf].EquationRGB = mode; - ctx->Color.Blend[buf].EquationA = mode; - ctx->Color._BlendEquationPerBuffer = GL_TRUE; - - if (ctx->Driver.BlendEquationSeparatei) - ctx->Driver.BlendEquationSeparatei(ctx, buf, mode, mode); -} - - -void GLAPIENTRY -_mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA ) -{ - GLuint buf, numBuffers; - GLboolean changed; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBlendEquationSeparateEXT(%s %s)\n", - _mesa_lookup_enum_by_nr(modeRGB), - _mesa_lookup_enum_by_nr(modeA)); - - if ( (modeRGB != modeA) && !ctx->Extensions.EXT_blend_equation_separate ) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlendEquationSeparateEXT not supported by driver"); - return; - } - - if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeRGB)"); - return; - } - - if (!legal_blend_equation(ctx, modeA, GL_TRUE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeA)"); - return; - } - - numBuffers = ctx->Extensions.ARB_draw_buffers_blend - ? ctx->Const.MaxDrawBuffers : 1; - - changed = GL_FALSE; - for (buf = 0; buf < numBuffers; buf++) { - if (ctx->Color.Blend[buf].EquationRGB != modeRGB || - ctx->Color.Blend[buf].EquationA != modeA) { - changed = GL_TRUE; - break; - } - } - if (!changed) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - for (buf = 0; buf < numBuffers; buf++) { - ctx->Color.Blend[buf].EquationRGB = modeRGB; - ctx->Color.Blend[buf].EquationA = modeA; - } - ctx->Color._BlendEquationPerBuffer = GL_FALSE; - - if (ctx->Driver.BlendEquationSeparate) - ctx->Driver.BlendEquationSeparate(ctx, modeRGB, modeA); -} - - -/** - * Set separate blend equations for one color buffer/target. - */ -void -_mesa_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glBlendEquationSeparatei(%u, %s %s)\n", buf, - _mesa_lookup_enum_by_nr(modeRGB), - _mesa_lookup_enum_by_nr(modeA)); - - if (buf >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBlendEquationSeparatei(buffer=%u)", - buf); - return; - } - - if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeRGB)"); - return; - } - - if (!legal_blend_equation(ctx, modeA, GL_TRUE)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeA)"); - return; - } - - if (ctx->Color.Blend[buf].EquationRGB == modeRGB && - ctx->Color.Blend[buf].EquationA == modeA) - return; /* no change */ - - FLUSH_VERTICES(ctx, _NEW_COLOR); - ctx->Color.Blend[buf].EquationRGB = modeRGB; - ctx->Color.Blend[buf].EquationA = modeA; - ctx->Color._BlendEquationPerBuffer = GL_TRUE; - - if (ctx->Driver.BlendEquationSeparatei) - ctx->Driver.BlendEquationSeparatei(ctx, buf, modeRGB, modeA); -} - - - -#endif /* _HAVE_FULL_GL */ - - -/** - * Set the blending color. - * - * \param red red color component. - * \param green green color component. - * \param blue blue color component. - * \param alpha alpha color component. - * - * \sa glBlendColor(). - * - * Clamps the parameters and updates gl_colorbuffer_attrib::BlendColor. On a - * change, flushes the vertices and notifies the driver via - * dd_function_table::BlendColor callback. - */ -void GLAPIENTRY -_mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha ) -{ - GLfloat tmp[4]; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - tmp[0] = CLAMP( red, 0.0F, 1.0F ); - tmp[1] = CLAMP( green, 0.0F, 1.0F ); - tmp[2] = CLAMP( blue, 0.0F, 1.0F ); - tmp[3] = CLAMP( alpha, 0.0F, 1.0F ); - - if (TEST_EQ_4V(tmp, ctx->Color.BlendColor)) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - COPY_4FV( ctx->Color.BlendColor, tmp ); - - if (ctx->Driver.BlendColor) - (*ctx->Driver.BlendColor)(ctx, tmp); -} - - -/** - * Specify the alpha test function. - * - * \param func alpha comparison function. - * \param ref reference value. - * - * Verifies the parameters and updates gl_colorbuffer_attrib. - * On a change, flushes the vertices and notifies the driver via - * dd_function_table::AlphaFunc callback. - */ -void GLAPIENTRY -_mesa_AlphaFunc( GLenum func, GLclampf ref ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glAlphaFunc(%s, %f)\n", - _mesa_lookup_enum_by_nr(func), ref); - - switch (func) { - case GL_NEVER: - case GL_LESS: - case GL_EQUAL: - case GL_LEQUAL: - case GL_GREATER: - case GL_NOTEQUAL: - case GL_GEQUAL: - case GL_ALWAYS: - ref = CLAMP(ref, 0.0F, 1.0F); - - if (ctx->Color.AlphaFunc == func && ctx->Color.AlphaRef == ref) - return; /* no change */ - - FLUSH_VERTICES(ctx, _NEW_COLOR); - ctx->Color.AlphaFunc = func; - ctx->Color.AlphaRef = ref; - - if (ctx->Driver.AlphaFunc) - ctx->Driver.AlphaFunc(ctx, func, ref); - return; - - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glAlphaFunc(func)" ); - return; - } -} - - -/** - * Specify a logic pixel operation for color index rendering. - * - * \param opcode operation. - * - * Verifies that \p opcode is a valid enum and updates -gl_colorbuffer_attrib::LogicOp. - * On a change, flushes the vertices and notifies the driver via the - * dd_function_table::LogicOpcode callback. - */ -void GLAPIENTRY -_mesa_LogicOp( GLenum opcode ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glLogicOp(%s)\n", _mesa_lookup_enum_by_nr(opcode)); - - switch (opcode) { - case GL_CLEAR: - case GL_SET: - case GL_COPY: - case GL_COPY_INVERTED: - case GL_NOOP: - case GL_INVERT: - case GL_AND: - case GL_NAND: - case GL_OR: - case GL_NOR: - case GL_XOR: - case GL_EQUIV: - case GL_AND_REVERSE: - case GL_AND_INVERTED: - case GL_OR_REVERSE: - case GL_OR_INVERTED: - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glLogicOp" ); - return; - } - - if (ctx->Color.LogicOp == opcode) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - ctx->Color.LogicOp = opcode; - - if (ctx->Driver.LogicOpcode) - ctx->Driver.LogicOpcode( ctx, opcode ); -} - -#if _HAVE_FULL_GL -void GLAPIENTRY -_mesa_IndexMask( GLuint mask ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Color.IndexMask == mask) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - ctx->Color.IndexMask = mask; -} -#endif - - -/** - * Enable or disable writing of frame buffer color components. - * - * \param red whether to mask writing of the red color component. - * \param green whether to mask writing of the green color component. - * \param blue whether to mask writing of the blue color component. - * \param alpha whether to mask writing of the alpha color component. - * - * \sa glColorMask(). - * - * Sets the appropriate value of gl_colorbuffer_attrib::ColorMask. On a - * change, flushes the vertices and notifies the driver via the - * dd_function_table::ColorMask callback. - */ -void GLAPIENTRY -_mesa_ColorMask( GLboolean red, GLboolean green, - GLboolean blue, GLboolean alpha ) -{ - GET_CURRENT_CONTEXT(ctx); - GLubyte tmp[4]; - GLuint i; - GLboolean flushed; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glColorMask(%d, %d, %d, %d)\n", - red, green, blue, alpha); - - /* Shouldn't have any information about channel depth in core mesa - * -- should probably store these as the native booleans: - */ - tmp[RCOMP] = red ? 0xff : 0x0; - tmp[GCOMP] = green ? 0xff : 0x0; - tmp[BCOMP] = blue ? 0xff : 0x0; - tmp[ACOMP] = alpha ? 0xff : 0x0; - - flushed = GL_FALSE; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - if (!TEST_EQ_4V(tmp, ctx->Color.ColorMask[i])) { - if (!flushed) { - FLUSH_VERTICES(ctx, _NEW_COLOR); - } - flushed = GL_TRUE; - COPY_4UBV(ctx->Color.ColorMask[i], tmp); - } - } - - if (ctx->Driver.ColorMask) - ctx->Driver.ColorMask( ctx, red, green, blue, alpha ); -} - - -/** - * For GL_EXT_draw_buffers2 and GL3 - */ -void GLAPIENTRY -_mesa_ColorMaskIndexed( GLuint buf, GLboolean red, GLboolean green, - GLboolean blue, GLboolean alpha ) -{ - GLubyte tmp[4]; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glColorMaskIndexed %u %d %d %d %d\n", - buf, red, green, blue, alpha); - - if (buf >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_VALUE, "glColorMaskIndexed(buf=%u)", buf); - return; - } - - /* Shouldn't have any information about channel depth in core mesa - * -- should probably store these as the native booleans: - */ - tmp[RCOMP] = red ? 0xff : 0x0; - tmp[GCOMP] = green ? 0xff : 0x0; - tmp[BCOMP] = blue ? 0xff : 0x0; - tmp[ACOMP] = alpha ? 0xff : 0x0; - - if (TEST_EQ_4V(tmp, ctx->Color.ColorMask[buf])) - return; - - FLUSH_VERTICES(ctx, _NEW_COLOR); - COPY_4UBV(ctx->Color.ColorMask[buf], tmp); - - if (ctx->Driver.ColorMaskIndexed) - ctx->Driver.ColorMaskIndexed(ctx, buf, red, green, blue, alpha); -} - - -extern void GLAPIENTRY -_mesa_ClampColorARB(GLenum target, GLenum clamp) -{ - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (clamp != GL_TRUE && clamp != GL_FALSE && clamp != GL_FIXED_ONLY_ARB) { - _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(clamp)"); - return; - } - - switch (target) { - case GL_CLAMP_VERTEX_COLOR_ARB: - ctx->Light.ClampVertexColor = clamp; - break; - case GL_CLAMP_FRAGMENT_COLOR_ARB: - ctx->Color.ClampFragmentColor = clamp; - break; - case GL_CLAMP_READ_COLOR_ARB: - ctx->Color.ClampReadColor = clamp; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)"); - return; - } -} - - - - -/**********************************************************************/ -/** \name Initialization */ -/*@{*/ - -/** - * Initialization of the context's Color attribute group. - * - * \param ctx GL context. - * - * Initializes the related fields in the context color attribute group, - * __struct gl_contextRec::Color. - */ -void _mesa_init_color( struct gl_context * ctx ) -{ - GLuint i; - - /* Color buffer group */ - ctx->Color.IndexMask = ~0u; - memset(ctx->Color.ColorMask, 0xff, sizeof(ctx->Color.ColorMask)); - ctx->Color.ClearIndex = 0; - ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 ); - ctx->Color.AlphaEnabled = GL_FALSE; - ctx->Color.AlphaFunc = GL_ALWAYS; - ctx->Color.AlphaRef = 0; - ctx->Color.BlendEnabled = 0x0; - for (i = 0; i < Elements(ctx->Color.Blend); i++) { - ctx->Color.Blend[i].SrcRGB = GL_ONE; - ctx->Color.Blend[i].DstRGB = GL_ZERO; - ctx->Color.Blend[i].SrcA = GL_ONE; - ctx->Color.Blend[i].DstA = GL_ZERO; - ctx->Color.Blend[i].EquationRGB = GL_FUNC_ADD; - ctx->Color.Blend[i].EquationA = GL_FUNC_ADD; - } - ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 ); - ctx->Color.IndexLogicOpEnabled = GL_FALSE; - ctx->Color.ColorLogicOpEnabled = GL_FALSE; - ctx->Color._LogicOpEnabled = GL_FALSE; - ctx->Color.LogicOp = GL_COPY; - ctx->Color.DitherFlag = GL_TRUE; - - if (ctx->Visual.doubleBufferMode) { - ctx->Color.DrawBuffer[0] = GL_BACK; - } - else { - ctx->Color.DrawBuffer[0] = GL_FRONT; - } - - ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB; - ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB; -} - -/*@}*/ +/**
+ * \file blend.c
+ * Blending operations.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+
+#include "glheader.h"
+#include "blend.h"
+#include "context.h"
+#include "enums.h"
+#include "macros.h"
+#include "mtypes.h"
+
+
+
+/**
+ * Check if given blend source factor is legal.
+ * \return GL_TRUE if legal, GL_FALSE otherwise.
+ */
+static GLboolean
+legal_src_factor(const struct gl_context *ctx, GLenum factor)
+{
+ switch (factor) {
+ case GL_SRC_COLOR:
+ case GL_ONE_MINUS_SRC_COLOR:
+ return ctx->Extensions.NV_blend_square;
+ case GL_ZERO:
+ case GL_ONE:
+ case GL_DST_COLOR:
+ case GL_ONE_MINUS_DST_COLOR:
+ case GL_SRC_ALPHA:
+ case GL_ONE_MINUS_SRC_ALPHA:
+ case GL_DST_ALPHA:
+ case GL_ONE_MINUS_DST_ALPHA:
+ case GL_SRC_ALPHA_SATURATE:
+ case GL_CONSTANT_COLOR:
+ case GL_ONE_MINUS_CONSTANT_COLOR:
+ case GL_CONSTANT_ALPHA:
+ case GL_ONE_MINUS_CONSTANT_ALPHA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if given blend destination factor is legal.
+ * \return GL_TRUE if legal, GL_FALSE otherwise.
+ */
+static GLboolean
+legal_dst_factor(const struct gl_context *ctx, GLenum factor)
+{
+ switch (factor) {
+ case GL_DST_COLOR:
+ case GL_ONE_MINUS_DST_COLOR:
+ return ctx->Extensions.NV_blend_square;
+ case GL_ZERO:
+ case GL_ONE:
+ case GL_SRC_COLOR:
+ case GL_ONE_MINUS_SRC_COLOR:
+ case GL_SRC_ALPHA:
+ case GL_ONE_MINUS_SRC_ALPHA:
+ case GL_DST_ALPHA:
+ case GL_ONE_MINUS_DST_ALPHA:
+ case GL_CONSTANT_COLOR:
+ case GL_ONE_MINUS_CONSTANT_COLOR:
+ case GL_CONSTANT_ALPHA:
+ case GL_ONE_MINUS_CONSTANT_ALPHA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if src/dest RGB/A blend factors are legal. If not generate
+ * a GL error.
+ * \return GL_TRUE if factors are legal, GL_FALSE otherwise.
+ */
+static GLboolean
+validate_blend_factors(struct gl_context *ctx, const char *func,
+ GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA)
+{
+ if (!legal_src_factor(ctx, sfactorRGB)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(sfactorRGB = %s)", func,
+ _mesa_lookup_enum_by_nr(sfactorRGB));
+ return GL_FALSE;
+ }
+
+ if (!legal_dst_factor(ctx, dfactorRGB)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(dfactorRGB = %s)", func,
+ _mesa_lookup_enum_by_nr(dfactorRGB));
+ return GL_FALSE;
+ }
+
+ if (sfactorA != sfactorRGB && !legal_src_factor(ctx, sfactorA)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(sfactorA = %s)", func,
+ _mesa_lookup_enum_by_nr(sfactorA));
+ return GL_FALSE;
+ }
+
+ if (dfactorA != dfactorRGB && !legal_dst_factor(ctx, dfactorA)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(dfactorA = %s)", func,
+ _mesa_lookup_enum_by_nr(dfactorA));
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Specify the blending operation.
+ *
+ * \param sfactor source factor operator.
+ * \param dfactor destination factor operator.
+ *
+ * \sa glBlendFunc, glBlendFuncSeparateEXT
+ */
+void GLAPIENTRY
+_mesa_BlendFunc( GLenum sfactor, GLenum dfactor )
+{
+ _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor);
+}
+
+
+/**
+ * Set the separate blend source/dest factors for all draw buffers.
+ *
+ * \param sfactorRGB RGB source factor operator.
+ * \param dfactorRGB RGB destination factor operator.
+ * \param sfactorA alpha source factor operator.
+ * \param dfactorA alpha destination factor operator.
+ */
+void GLAPIENTRY
+_mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA )
+{
+ GLuint buf, numBuffers;
+ GLboolean changed;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glBlendFuncSeparate %s %s %s %s\n",
+ _mesa_lookup_enum_by_nr(sfactorRGB),
+ _mesa_lookup_enum_by_nr(dfactorRGB),
+ _mesa_lookup_enum_by_nr(sfactorA),
+ _mesa_lookup_enum_by_nr(dfactorA));
+
+ if (!validate_blend_factors(ctx, "glBlendFuncSeparate",
+ sfactorRGB, dfactorRGB,
+ sfactorA, dfactorA)) {
+ return;
+ }
+
+ numBuffers = ctx->Extensions.ARB_draw_buffers_blend
+ ? ctx->Const.MaxDrawBuffers : 1;
+
+ changed = GL_FALSE;
+ for (buf = 0; buf < numBuffers; buf++) {
+ if (ctx->Color.Blend[buf].SrcRGB != sfactorRGB ||
+ ctx->Color.Blend[buf].DstRGB != dfactorRGB ||
+ ctx->Color.Blend[buf].SrcA != sfactorA ||
+ ctx->Color.Blend[buf].DstA != dfactorA) {
+ changed = GL_TRUE;
+ break;
+ }
+ }
+ if (!changed)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+
+ for (buf = 0; buf < numBuffers; buf++) {
+ ctx->Color.Blend[buf].SrcRGB = sfactorRGB;
+ ctx->Color.Blend[buf].DstRGB = dfactorRGB;
+ ctx->Color.Blend[buf].SrcA = sfactorA;
+ ctx->Color.Blend[buf].DstA = dfactorA;
+ }
+ ctx->Color._BlendFuncPerBuffer = GL_FALSE;
+
+ if (ctx->Driver.BlendFuncSeparate) {
+ ctx->Driver.BlendFuncSeparate(ctx, sfactorRGB, dfactorRGB,
+ sfactorA, dfactorA);
+ }
+}
+
+
+#if _HAVE_FULL_GL
+
+
+/**
+ * Set blend source/dest factors for one color buffer/target.
+ */
+void GLAPIENTRY
+_mesa_BlendFunci(GLuint buf, GLenum sfactor, GLenum dfactor)
+{
+ _mesa_BlendFuncSeparatei(buf, sfactor, dfactor, sfactor, dfactor);
+}
+
+
+/**
+ * Set separate blend source/dest factors for one color buffer/target.
+ */
+void GLAPIENTRY
+_mesa_BlendFuncSeparatei(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.ARB_draw_buffers_blend) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBlendFunc[Separate]i()");
+ return;
+ }
+
+ if (buf >= ctx->Const.MaxDrawBuffers) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",
+ buf);
+ return;
+ }
+
+ if (!validate_blend_factors(ctx, "glBlendFuncSeparatei",
+ sfactorRGB, dfactorRGB,
+ sfactorA, dfactorA)) {
+ return;
+ }
+
+ if (ctx->Color.Blend[buf].SrcRGB == sfactorRGB &&
+ ctx->Color.Blend[buf].DstRGB == dfactorRGB &&
+ ctx->Color.Blend[buf].SrcA == sfactorA &&
+ ctx->Color.Blend[buf].DstA == dfactorA)
+ return; /* no change */
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+
+ ctx->Color.Blend[buf].SrcRGB = sfactorRGB;
+ ctx->Color.Blend[buf].DstRGB = dfactorRGB;
+ ctx->Color.Blend[buf].SrcA = sfactorA;
+ ctx->Color.Blend[buf].DstA = dfactorA;
+ ctx->Color._BlendFuncPerBuffer = GL_TRUE;
+
+ if (ctx->Driver.BlendFuncSeparatei) {
+ ctx->Driver.BlendFuncSeparatei(ctx, buf, sfactorRGB, dfactorRGB,
+ sfactorA, dfactorA);
+ }
+}
+
+
+/**
+ * Check if given blend equation is legal.
+ * \return GL_TRUE if legal, GL_FALSE otherwise.
+ */
+static GLboolean
+legal_blend_equation(const struct gl_context *ctx,
+ GLenum mode, GLboolean is_separate)
+{
+ switch (mode) {
+ case GL_FUNC_ADD:
+ return GL_TRUE;
+ case GL_MIN:
+ case GL_MAX:
+ return ctx->Extensions.EXT_blend_minmax;
+ case GL_LOGIC_OP:
+ /* glBlendEquationSeparate cannot take GL_LOGIC_OP as a parameter.
+ */
+ return ctx->Extensions.EXT_blend_logic_op && !is_separate;
+ case GL_FUNC_SUBTRACT:
+ case GL_FUNC_REVERSE_SUBTRACT:
+ return ctx->Extensions.EXT_blend_subtract;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/* This is really an extension function! */
+void GLAPIENTRY
+_mesa_BlendEquation( GLenum mode )
+{
+ GLuint buf, numBuffers;
+ GLboolean changed;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glBlendEquation(%s)\n",
+ _mesa_lookup_enum_by_nr(mode));
+
+ if (!legal_blend_equation(ctx, mode, GL_FALSE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquation");
+ return;
+ }
+
+ numBuffers = ctx->Extensions.ARB_draw_buffers_blend
+ ? ctx->Const.MaxDrawBuffers : 1;
+
+ changed = GL_FALSE;
+ for (buf = 0; buf < numBuffers; buf++) {
+ if (ctx->Color.Blend[buf].EquationRGB != mode ||
+ ctx->Color.Blend[buf].EquationA != mode) {
+ changed = GL_TRUE;
+ break;
+ }
+ }
+ if (!changed)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ for (buf = 0; buf < numBuffers; buf++) {
+ ctx->Color.Blend[buf].EquationRGB = mode;
+ ctx->Color.Blend[buf].EquationA = mode;
+ }
+ ctx->Color._BlendEquationPerBuffer = GL_FALSE;
+
+ if (ctx->Driver.BlendEquationSeparate)
+ (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode );
+}
+
+
+/**
+ * Set blend equation for one color buffer/target.
+ */
+void GLAPIENTRY
+_mesa_BlendEquationi(GLuint buf, GLenum mode)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glBlendEquationi(%u, %s)\n",
+ buf, _mesa_lookup_enum_by_nr(mode));
+
+ if (buf >= ctx->Const.MaxDrawBuffers) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBlendFuncSeparatei(buffer=%u)",
+ buf);
+ return;
+ }
+
+ if (!legal_blend_equation(ctx, mode, GL_FALSE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationi");
+ return;
+ }
+
+ if (ctx->Color.Blend[buf].EquationRGB == mode &&
+ ctx->Color.Blend[buf].EquationA == mode)
+ return; /* no change */
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.Blend[buf].EquationRGB = mode;
+ ctx->Color.Blend[buf].EquationA = mode;
+ ctx->Color._BlendEquationPerBuffer = GL_TRUE;
+
+ if (ctx->Driver.BlendEquationSeparatei)
+ ctx->Driver.BlendEquationSeparatei(ctx, buf, mode, mode);
+}
+
+
+void GLAPIENTRY
+_mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )
+{
+ GLuint buf, numBuffers;
+ GLboolean changed;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glBlendEquationSeparateEXT(%s %s)\n",
+ _mesa_lookup_enum_by_nr(modeRGB),
+ _mesa_lookup_enum_by_nr(modeA));
+
+ if ( (modeRGB != modeA) && !ctx->Extensions.EXT_blend_equation_separate ) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlendEquationSeparateEXT not supported by driver");
+ return;
+ }
+
+ if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeRGB)");
+ return;
+ }
+
+ if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparateEXT(modeA)");
+ return;
+ }
+
+ numBuffers = ctx->Extensions.ARB_draw_buffers_blend
+ ? ctx->Const.MaxDrawBuffers : 1;
+
+ changed = GL_FALSE;
+ for (buf = 0; buf < numBuffers; buf++) {
+ if (ctx->Color.Blend[buf].EquationRGB != modeRGB ||
+ ctx->Color.Blend[buf].EquationA != modeA) {
+ changed = GL_TRUE;
+ break;
+ }
+ }
+ if (!changed)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ for (buf = 0; buf < numBuffers; buf++) {
+ ctx->Color.Blend[buf].EquationRGB = modeRGB;
+ ctx->Color.Blend[buf].EquationA = modeA;
+ }
+ ctx->Color._BlendEquationPerBuffer = GL_FALSE;
+
+ if (ctx->Driver.BlendEquationSeparate)
+ ctx->Driver.BlendEquationSeparate(ctx, modeRGB, modeA);
+}
+
+
+/**
+ * Set separate blend equations for one color buffer/target.
+ */
+void
+_mesa_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glBlendEquationSeparatei(%u, %s %s)\n", buf,
+ _mesa_lookup_enum_by_nr(modeRGB),
+ _mesa_lookup_enum_by_nr(modeA));
+
+ if (buf >= ctx->Const.MaxDrawBuffers) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBlendEquationSeparatei(buffer=%u)",
+ buf);
+ return;
+ }
+
+ if (!legal_blend_equation(ctx, modeRGB, GL_TRUE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeRGB)");
+ return;
+ }
+
+ if (!legal_blend_equation(ctx, modeA, GL_TRUE)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlendEquationSeparatei(modeA)");
+ return;
+ }
+
+ if (ctx->Color.Blend[buf].EquationRGB == modeRGB &&
+ ctx->Color.Blend[buf].EquationA == modeA)
+ return; /* no change */
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.Blend[buf].EquationRGB = modeRGB;
+ ctx->Color.Blend[buf].EquationA = modeA;
+ ctx->Color._BlendEquationPerBuffer = GL_TRUE;
+
+ if (ctx->Driver.BlendEquationSeparatei)
+ ctx->Driver.BlendEquationSeparatei(ctx, buf, modeRGB, modeA);
+}
+
+
+
+#endif /* _HAVE_FULL_GL */
+
+
+/**
+ * Set the blending color.
+ *
+ * \param red red color component.
+ * \param green green color component.
+ * \param blue blue color component.
+ * \param alpha alpha color component.
+ *
+ * \sa glBlendColor().
+ *
+ * Clamps the parameters and updates gl_colorbuffer_attrib::BlendColor. On a
+ * change, flushes the vertices and notifies the driver via
+ * dd_function_table::BlendColor callback.
+ */
+void GLAPIENTRY
+_mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
+{
+ GLfloat tmp[4];
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ tmp[0] = CLAMP( red, 0.0F, 1.0F );
+ tmp[1] = CLAMP( green, 0.0F, 1.0F );
+ tmp[2] = CLAMP( blue, 0.0F, 1.0F );
+ tmp[3] = CLAMP( alpha, 0.0F, 1.0F );
+
+ if (TEST_EQ_4V(tmp, ctx->Color.BlendColor))
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ COPY_4FV( ctx->Color.BlendColor, tmp );
+
+ if (ctx->Driver.BlendColor)
+ (*ctx->Driver.BlendColor)(ctx, tmp);
+}
+
+
+/**
+ * Specify the alpha test function.
+ *
+ * \param func alpha comparison function.
+ * \param ref reference value.
+ *
+ * Verifies the parameters and updates gl_colorbuffer_attrib.
+ * On a change, flushes the vertices and notifies the driver via
+ * dd_function_table::AlphaFunc callback.
+ */
+void GLAPIENTRY
+_mesa_AlphaFunc( GLenum func, GLclampf ref )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glAlphaFunc(%s, %f)\n",
+ _mesa_lookup_enum_by_nr(func), ref);
+
+ switch (func) {
+ case GL_NEVER:
+ case GL_LESS:
+ case GL_EQUAL:
+ case GL_LEQUAL:
+ case GL_GREATER:
+ case GL_NOTEQUAL:
+ case GL_GEQUAL:
+ case GL_ALWAYS:
+ ref = CLAMP(ref, 0.0F, 1.0F);
+
+ if (ctx->Color.AlphaFunc == func && ctx->Color.AlphaRef == ref)
+ return; /* no change */
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.AlphaFunc = func;
+ ctx->Color.AlphaRef = ref;
+
+ if (ctx->Driver.AlphaFunc)
+ ctx->Driver.AlphaFunc(ctx, func, ref);
+ return;
+
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glAlphaFunc(func)" );
+ return;
+ }
+}
+
+
+/**
+ * Specify a logic pixel operation for color index rendering.
+ *
+ * \param opcode operation.
+ *
+ * Verifies that \p opcode is a valid enum and updates
+gl_colorbuffer_attrib::LogicOp.
+ * On a change, flushes the vertices and notifies the driver via the
+ * dd_function_table::LogicOpcode callback.
+ */
+void GLAPIENTRY
+_mesa_LogicOp( GLenum opcode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glLogicOp(%s)\n", _mesa_lookup_enum_by_nr(opcode));
+
+ switch (opcode) {
+ case GL_CLEAR:
+ case GL_SET:
+ case GL_COPY:
+ case GL_COPY_INVERTED:
+ case GL_NOOP:
+ case GL_INVERT:
+ case GL_AND:
+ case GL_NAND:
+ case GL_OR:
+ case GL_NOR:
+ case GL_XOR:
+ case GL_EQUIV:
+ case GL_AND_REVERSE:
+ case GL_AND_INVERTED:
+ case GL_OR_REVERSE:
+ case GL_OR_INVERTED:
+ break;
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glLogicOp" );
+ return;
+ }
+
+ if (ctx->Color.LogicOp == opcode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.LogicOp = opcode;
+
+ if (ctx->Driver.LogicOpcode)
+ ctx->Driver.LogicOpcode( ctx, opcode );
+}
+
+#if _HAVE_FULL_GL
+void GLAPIENTRY
+_mesa_IndexMask( GLuint mask )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (ctx->Color.IndexMask == mask)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.IndexMask = mask;
+}
+#endif
+
+
+/**
+ * Enable or disable writing of frame buffer color components.
+ *
+ * \param red whether to mask writing of the red color component.
+ * \param green whether to mask writing of the green color component.
+ * \param blue whether to mask writing of the blue color component.
+ * \param alpha whether to mask writing of the alpha color component.
+ *
+ * \sa glColorMask().
+ *
+ * Sets the appropriate value of gl_colorbuffer_attrib::ColorMask. On a
+ * change, flushes the vertices and notifies the driver via the
+ * dd_function_table::ColorMask callback.
+ */
+void GLAPIENTRY
+_mesa_ColorMask( GLboolean red, GLboolean green,
+ GLboolean blue, GLboolean alpha )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLubyte tmp[4];
+ GLuint i;
+ GLboolean flushed;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glColorMask(%d, %d, %d, %d)\n",
+ red, green, blue, alpha);
+
+ /* Shouldn't have any information about channel depth in core mesa
+ * -- should probably store these as the native booleans:
+ */
+ tmp[RCOMP] = red ? 0xff : 0x0;
+ tmp[GCOMP] = green ? 0xff : 0x0;
+ tmp[BCOMP] = blue ? 0xff : 0x0;
+ tmp[ACOMP] = alpha ? 0xff : 0x0;
+
+ flushed = GL_FALSE;
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ if (!TEST_EQ_4V(tmp, ctx->Color.ColorMask[i])) {
+ if (!flushed) {
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ }
+ flushed = GL_TRUE;
+ COPY_4UBV(ctx->Color.ColorMask[i], tmp);
+ }
+ }
+
+ if (ctx->Driver.ColorMask)
+ ctx->Driver.ColorMask( ctx, red, green, blue, alpha );
+}
+
+
+/**
+ * For GL_EXT_draw_buffers2 and GL3
+ */
+void GLAPIENTRY
+_mesa_ColorMaskIndexed( GLuint buf, GLboolean red, GLboolean green,
+ GLboolean blue, GLboolean alpha )
+{
+ GLubyte tmp[4];
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glColorMaskIndexed %u %d %d %d %d\n",
+ buf, red, green, blue, alpha);
+
+ if (buf >= ctx->Const.MaxDrawBuffers) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorMaskIndexed(buf=%u)", buf);
+ return;
+ }
+
+ /* Shouldn't have any information about channel depth in core mesa
+ * -- should probably store these as the native booleans:
+ */
+ tmp[RCOMP] = red ? 0xff : 0x0;
+ tmp[GCOMP] = green ? 0xff : 0x0;
+ tmp[BCOMP] = blue ? 0xff : 0x0;
+ tmp[ACOMP] = alpha ? 0xff : 0x0;
+
+ if (TEST_EQ_4V(tmp, ctx->Color.ColorMask[buf]))
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ COPY_4UBV(ctx->Color.ColorMask[buf], tmp);
+
+ if (ctx->Driver.ColorMaskIndexed)
+ ctx->Driver.ColorMaskIndexed(ctx, buf, red, green, blue, alpha);
+}
+
+
+extern void GLAPIENTRY
+_mesa_ClampColorARB(GLenum target, GLenum clamp)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (clamp != GL_TRUE && clamp != GL_FALSE && clamp != GL_FIXED_ONLY_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(clamp)");
+ return;
+ }
+
+ switch (target) {
+ case GL_CLAMP_VERTEX_COLOR_ARB:
+ ctx->Light.ClampVertexColor = clamp;
+ break;
+ case GL_CLAMP_FRAGMENT_COLOR_ARB:
+ ctx->Color.ClampFragmentColor = clamp;
+ break;
+ case GL_CLAMP_READ_COLOR_ARB:
+ ctx->Color.ClampReadColor = clamp;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)");
+ return;
+ }
+}
+
+
+
+
+/**********************************************************************/
+/** \name Initialization */
+/*@{*/
+
+/**
+ * Initialization of the context's Color attribute group.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes the related fields in the context color attribute group,
+ * __struct gl_contextRec::Color.
+ */
+void _mesa_init_color( struct gl_context * ctx )
+{
+ GLuint i;
+
+ /* Color buffer group */
+ ctx->Color.IndexMask = ~0u;
+ memset(ctx->Color.ColorMask, 0xff, sizeof(ctx->Color.ColorMask));
+ ctx->Color.ClearIndex = 0;
+ ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 );
+ ctx->Color.AlphaEnabled = GL_FALSE;
+ ctx->Color.AlphaFunc = GL_ALWAYS;
+ ctx->Color.AlphaRef = 0;
+ ctx->Color.BlendEnabled = 0x0;
+ for (i = 0; i < Elements(ctx->Color.Blend); i++) {
+ ctx->Color.Blend[i].SrcRGB = GL_ONE;
+ ctx->Color.Blend[i].DstRGB = GL_ZERO;
+ ctx->Color.Blend[i].SrcA = GL_ONE;
+ ctx->Color.Blend[i].DstA = GL_ZERO;
+ ctx->Color.Blend[i].EquationRGB = GL_FUNC_ADD;
+ ctx->Color.Blend[i].EquationA = GL_FUNC_ADD;
+ }
+ ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 );
+ ctx->Color.IndexLogicOpEnabled = GL_FALSE;
+ ctx->Color.ColorLogicOpEnabled = GL_FALSE;
+ ctx->Color._LogicOpEnabled = GL_FALSE;
+ ctx->Color.LogicOp = GL_COPY;
+ ctx->Color.DitherFlag = GL_TRUE;
+
+ if (ctx->Visual.doubleBufferMode) {
+ ctx->Color.DrawBuffer[0] = GL_BACK;
+ }
+ else {
+ ctx->Color.DrawBuffer[0] = GL_FRONT;
+ }
+
+ ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB;
+ ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;
+}
+
+/*@}*/
diff --git a/mesalib/src/mesa/main/bufferobj.c b/mesalib/src/mesa/main/bufferobj.c index f67c04f7a..349288e73 100644 --- a/mesalib/src/mesa/main/bufferobj.c +++ b/mesalib/src/mesa/main/bufferobj.c @@ -197,7 +197,7 @@ buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target, *
* Default callback for the \c dd_function_table::NewBufferObject() hook.
*/
-static struct gl_buffer_object *
+struct gl_buffer_object *
_mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target )
{
struct gl_buffer_object *obj;
@@ -215,7 +215,7 @@ _mesa_new_buffer_object( struct gl_context *ctx, GLuint name, GLenum target ) *
* Default callback for the \c dd_function_table::DeleteBuffer() hook.
*/
-static void
+void
_mesa_delete_buffer_object(struct gl_context *ctx,
struct gl_buffer_object *bufObj)
{
@@ -337,7 +337,7 @@ _mesa_initialize_buffer_object( struct gl_buffer_object *obj, * \return GL_TRUE for success, GL_FALSE for failure
* \sa glBufferDataARB, dd_function_table::BufferData.
*/
-static GLboolean
+GLboolean
_mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size,
const GLvoid * data, GLenum usage,
struct gl_buffer_object * bufObj )
@@ -381,7 +381,7 @@ _mesa_buffer_data( struct gl_context *ctx, GLenum target, GLsizeiptrARB size, *
* \sa glBufferSubDataARB, dd_function_table::BufferSubData.
*/
-static void
+void
_mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset,
GLsizeiptrARB size, const GLvoid * data,
struct gl_buffer_object * bufObj )
@@ -414,7 +414,7 @@ _mesa_buffer_subdata( struct gl_context *ctx, GLenum target, GLintptrARB offset, *
* \sa glBufferGetSubDataARB, dd_function_table::GetBufferSubData.
*/
-static void
+void
_mesa_buffer_get_subdata( struct gl_context *ctx,
GLenum target, GLintptrARB offset,
GLsizeiptrARB size, GLvoid * data,
@@ -442,7 +442,7 @@ _mesa_buffer_get_subdata( struct gl_context *ctx, *
* \sa glMapBufferARB, dd_function_table::MapBuffer
*/
-static void *
+void *
_mesa_buffer_map( struct gl_context *ctx, GLenum target, GLenum access,
struct gl_buffer_object *bufObj )
{
@@ -507,7 +507,7 @@ _mesa_buffer_flush_mapped_range( struct gl_context *ctx, GLenum target, *
* \sa glUnmapBufferARB, dd_function_table::UnmapBuffer
*/
-static GLboolean
+GLboolean
_mesa_buffer_unmap( struct gl_context *ctx, GLenum target,
struct gl_buffer_object *bufObj )
{
diff --git a/mesalib/src/mesa/main/bufferobj.h b/mesalib/src/mesa/main/bufferobj.h index 91fa073b6..f673f431f 100644 --- a/mesalib/src/mesa/main/bufferobj.h +++ b/mesalib/src/mesa/main/bufferobj.h @@ -1,149 +1,149 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - - -#ifndef BUFFEROBJ_H -#define BUFFEROBJ_H - - -#include "mfeatures.h" -#include "mtypes.h" - - -/* - * Internal functions - */ - - -/** Is the given buffer object currently mapped? */ -static INLINE GLboolean -_mesa_bufferobj_mapped(const struct gl_buffer_object *obj) -{ - return obj->Pointer != NULL; -} - -/** - * Is the given buffer object a user-created buffer object? - * Mesa uses default buffer objects in several places. Default buffers - * always have Name==0. User created buffers have Name!=0. - */ -static INLINE GLboolean -_mesa_is_bufferobj(const struct gl_buffer_object *obj) -{ - return obj->Name != 0; -} - - -extern void -_mesa_init_buffer_objects( struct gl_context *ctx ); - -extern void -_mesa_free_buffer_objects( struct gl_context *ctx ); - -extern void -_mesa_update_default_objects_buffer_objects(struct gl_context *ctx); - - -extern struct gl_buffer_object * -_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer); - -extern void -_mesa_initialize_buffer_object( struct gl_buffer_object *obj, - GLuint name, GLenum target ); - -extern void -_mesa_reference_buffer_object(struct gl_context *ctx, - struct gl_buffer_object **ptr, - struct gl_buffer_object *bufObj); - -extern void -_mesa_init_buffer_object_functions(struct dd_function_table *driver); - - -/* - * API functions - */ - -extern void GLAPIENTRY -_mesa_BindBufferARB(GLenum target, GLuint buffer); - -extern void GLAPIENTRY -_mesa_DeleteBuffersARB(GLsizei n, const GLuint * buffer); - -extern void GLAPIENTRY -_mesa_GenBuffersARB(GLsizei n, GLuint * buffer); - -extern GLboolean GLAPIENTRY -_mesa_IsBufferARB(GLuint buffer); - -extern void GLAPIENTRY -_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, const GLvoid * data, GLenum usage); - -extern void GLAPIENTRY -_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid * data); - -extern void GLAPIENTRY -_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, void * data); - -extern void * GLAPIENTRY -_mesa_MapBufferARB(GLenum target, GLenum access); - -extern GLboolean GLAPIENTRY -_mesa_UnmapBufferARB(GLenum target); - -extern void GLAPIENTRY -_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params); - -extern void GLAPIENTRY -_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params); - -extern void GLAPIENTRY -_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params); - -extern void GLAPIENTRY -_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget, - GLintptr readOffset, GLintptr writeOffset, - GLsizeiptr size); - -extern void * GLAPIENTRY -_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, - GLbitfield access); - -extern void GLAPIENTRY -_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length); - -#if FEATURE_APPLE_object_purgeable -extern GLenum GLAPIENTRY -_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option); - -extern GLenum GLAPIENTRY -_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option); - -extern void GLAPIENTRY -_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, GLint* params); -#endif - -#endif +/*
+ * Mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+
+#ifndef BUFFEROBJ_H
+#define BUFFEROBJ_H
+
+
+#include "mfeatures.h"
+#include "mtypes.h"
+
+
+/*
+ * Internal functions
+ */
+
+
+/** Is the given buffer object currently mapped? */
+static INLINE GLboolean
+_mesa_bufferobj_mapped(const struct gl_buffer_object *obj)
+{
+ return obj->Pointer != NULL;
+}
+
+/**
+ * Is the given buffer object a user-created buffer object?
+ * Mesa uses default buffer objects in several places. Default buffers
+ * always have Name==0. User created buffers have Name!=0.
+ */
+static INLINE GLboolean
+_mesa_is_bufferobj(const struct gl_buffer_object *obj)
+{
+ return obj->Name != 0;
+}
+
+
+extern void
+_mesa_init_buffer_objects( struct gl_context *ctx );
+
+extern void
+_mesa_free_buffer_objects( struct gl_context *ctx );
+
+extern void
+_mesa_update_default_objects_buffer_objects(struct gl_context *ctx);
+
+
+extern struct gl_buffer_object *
+_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer);
+
+extern void
+_mesa_initialize_buffer_object( struct gl_buffer_object *obj,
+ GLuint name, GLenum target );
+
+extern void
+_mesa_reference_buffer_object(struct gl_context *ctx,
+ struct gl_buffer_object **ptr,
+ struct gl_buffer_object *bufObj);
+
+extern void
+_mesa_init_buffer_object_functions(struct dd_function_table *driver);
+
+
+/*
+ * API functions
+ */
+
+extern void GLAPIENTRY
+_mesa_BindBufferARB(GLenum target, GLuint buffer);
+
+extern void GLAPIENTRY
+_mesa_DeleteBuffersARB(GLsizei n, const GLuint * buffer);
+
+extern void GLAPIENTRY
+_mesa_GenBuffersARB(GLsizei n, GLuint * buffer);
+
+extern GLboolean GLAPIENTRY
+_mesa_IsBufferARB(GLuint buffer);
+
+extern void GLAPIENTRY
+_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, const GLvoid * data, GLenum usage);
+
+extern void GLAPIENTRY
+_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid * data);
+
+extern void GLAPIENTRY
+_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, void * data);
+
+extern void * GLAPIENTRY
+_mesa_MapBufferARB(GLenum target, GLenum access);
+
+extern GLboolean GLAPIENTRY
+_mesa_UnmapBufferARB(GLenum target);
+
+extern void GLAPIENTRY
+_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params);
+
+extern void GLAPIENTRY
+_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params);
+
+extern void GLAPIENTRY
+_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params);
+
+extern void GLAPIENTRY
+_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
+ GLintptr readOffset, GLintptr writeOffset,
+ GLsizeiptr size);
+
+extern void * GLAPIENTRY
+_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
+ GLbitfield access);
+
+extern void GLAPIENTRY
+_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);
+
+#if FEATURE_APPLE_object_purgeable
+extern GLenum GLAPIENTRY
+_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option);
+
+extern GLenum GLAPIENTRY
+_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option);
+
+extern void GLAPIENTRY
+_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, GLint* params);
+#endif
+
+#endif
diff --git a/mesalib/src/mesa/main/colortab.c b/mesalib/src/mesa/main/colortab.c index d0c865735..48318248e 100644 --- a/mesalib/src/mesa/main/colortab.c +++ b/mesalib/src/mesa/main/colortab.c @@ -1,821 +1,821 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "colortab.h" -#include "context.h" -#include "image.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "pack.h" -#include "pbo.h" -#include "state.h" -#include "teximage.h" -#include "texstate.h" -#include "main/dispatch.h" - - -#if FEATURE_colortable - - -/** - * Given an internalFormat token passed to glColorTable, - * return the corresponding base format. - * Return -1 if invalid token. - */ -static GLint -base_colortab_format( GLenum format ) -{ - switch (format) { - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - return GL_ALPHA; - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - return GL_LUMINANCE; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - return GL_LUMINANCE_ALPHA; - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_INTENSITY12: - case GL_INTENSITY16: - return GL_INTENSITY; - case GL_RGB: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - return GL_RGB; - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - return GL_RGBA; - default: - return -1; /* error */ - } -} - - - -/** - * Examine table's format and set the component sizes accordingly. - */ -static void -set_component_sizes( struct gl_color_table *table ) -{ - /* assuming the ubyte table */ - const GLubyte sz = 8; - - switch (table->_BaseFormat) { - case GL_ALPHA: - table->RedSize = 0; - table->GreenSize = 0; - table->BlueSize = 0; - table->AlphaSize = sz; - table->IntensitySize = 0; - table->LuminanceSize = 0; - break; - case GL_LUMINANCE: - table->RedSize = 0; - table->GreenSize = 0; - table->BlueSize = 0; - table->AlphaSize = 0; - table->IntensitySize = 0; - table->LuminanceSize = sz; - break; - case GL_LUMINANCE_ALPHA: - table->RedSize = 0; - table->GreenSize = 0; - table->BlueSize = 0; - table->AlphaSize = sz; - table->IntensitySize = 0; - table->LuminanceSize = sz; - break; - case GL_INTENSITY: - table->RedSize = 0; - table->GreenSize = 0; - table->BlueSize = 0; - table->AlphaSize = 0; - table->IntensitySize = sz; - table->LuminanceSize = 0; - break; - case GL_RGB: - table->RedSize = sz; - table->GreenSize = sz; - table->BlueSize = sz; - table->AlphaSize = 0; - table->IntensitySize = 0; - table->LuminanceSize = 0; - break; - case GL_RGBA: - table->RedSize = sz; - table->GreenSize = sz; - table->BlueSize = sz; - table->AlphaSize = sz; - table->IntensitySize = 0; - table->LuminanceSize = 0; - break; - default: - _mesa_problem(NULL, "unexpected format in set_component_sizes"); - } -} - - - -/** - * Update/replace all or part of a color table. Helper function - * used by _mesa_ColorTable() and _mesa_ColorSubTable(). - * The table->Table buffer should already be allocated. - * \param start first entry to update - * \param count number of entries to update - * \param format format of user-provided table data - * \param type datatype of user-provided table data - * \param data user-provided table data - * \param [rgba]Scale - RGBA scale factors - * \param [rgba]Bias - RGBA bias factors - */ -static void -store_colortable_entries(struct gl_context *ctx, struct gl_color_table *table, - GLsizei start, GLsizei count, - GLenum format, GLenum type, const GLvoid *data, - GLfloat rScale, GLfloat rBias, - GLfloat gScale, GLfloat gBias, - GLfloat bScale, GLfloat bBias, - GLfloat aScale, GLfloat aBias) -{ - data = _mesa_map_validate_pbo_source(ctx, - 1, &ctx->Unpack, count, 1, 1, - format, type, data, - "glColor[Sub]Table"); - if (!data) - return; - - { - /* convert user-provided data to GLfloat values */ - GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4]; - GLfloat *tableF; - GLint i; - - _mesa_unpack_color_span_float(ctx, - count, /* number of pixels */ - table->_BaseFormat, /* dest format */ - tempTab, /* dest address */ - format, type, /* src format/type */ - data, /* src data */ - &ctx->Unpack, - IMAGE_CLAMP_BIT); /* transfer ops */ - - /* the destination */ - tableF = table->TableF; - - /* Apply scale & bias & clamp now */ - switch (table->_BaseFormat) { - case GL_INTENSITY: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F); - } - break; - case GL_LUMINANCE: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F); - } - break; - case GL_ALPHA: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F); - } - break; - case GL_LUMINANCE_ALPHA: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F); - tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F); - } - break; - case GL_RGB: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F); - tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F); - tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F); - } - break; - case GL_RGBA: - for (i = 0; i < count; i++) { - GLuint j = start + i; - tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F); - tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F); - tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F); - tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F); - } - break; - default: - _mesa_problem(ctx, "Bad format in store_colortable_entries"); - return; - } - } - - /* update the ubyte table */ - { - const GLint comps = _mesa_components_in_format(table->_BaseFormat); - const GLfloat *tableF = table->TableF + start * comps; - GLubyte *tableUB = table->TableUB + start * comps; - GLint i; - for (i = 0; i < count * comps; i++) { - CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]); - } - } - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); -} - - - -void GLAPIENTRY -_mesa_ColorTable( GLenum target, GLenum internalFormat, - GLsizei width, GLenum format, GLenum type, - const GLvoid *data ) -{ - static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; - static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj = NULL; - struct gl_color_table *table = NULL; - GLboolean proxy = GL_FALSE; - GLint baseFormat; - const GLfloat *scale = one, *bias = zero; - GLint comps; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */ - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - proxy = _mesa_is_proxy_texture(target); - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)"); - return; - } - } - } - - assert(table); - - if (!_mesa_is_legal_format_and_type(ctx, format, type) || - format == GL_INTENSITY) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glColorTable(format or type)"); - return; - } - - baseFormat = base_colortab_format(internalFormat); - if (baseFormat < 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(internalFormat)"); - return; - } - - if (width < 0 || (width != 0 && !_mesa_is_pow_two(width))) { - /* error */ - if (proxy) { - table->Size = 0; - table->InternalFormat = (GLenum) 0; - table->_BaseFormat = (GLenum) 0; - } - else { - _mesa_error(ctx, GL_INVALID_VALUE, "glColorTable(width=%d)", width); - } - return; - } - - if (width > (GLsizei) ctx->Const.MaxColorTableSize) { - if (proxy) { - table->Size = 0; - table->InternalFormat = (GLenum) 0; - table->_BaseFormat = (GLenum) 0; - } - else { - _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glColorTable(width)"); - } - return; - } - - table->Size = width; - table->InternalFormat = internalFormat; - table->_BaseFormat = (GLenum) baseFormat; - - comps = _mesa_components_in_format(table->_BaseFormat); - assert(comps > 0); /* error should have been caught sooner */ - - if (!proxy) { - _mesa_free_colortable_data(table); - - if (width > 0) { - table->TableF = (GLfloat *) malloc(comps * width * sizeof(GLfloat)); - table->TableUB = (GLubyte *) malloc(comps * width * sizeof(GLubyte)); - - if (!table->TableF || !table->TableUB) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable"); - return; - } - - store_colortable_entries(ctx, table, - 0, width, /* start, count */ - format, type, data, - scale[0], bias[0], - scale[1], bias[1], - scale[2], bias[2], - scale[3], bias[3]); - } - } /* proxy */ - - /* do this after the table's Type and Format are set */ - set_component_sizes(table); - - if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) { - /* texture object palette, texObj==NULL means the shared palette */ - if (ctx->Driver.UpdateTexturePalette) { - (*ctx->Driver.UpdateTexturePalette)( ctx, texObj ); - } - } - - ctx->NewState |= _NEW_PIXEL; -} - - - -void GLAPIENTRY -_mesa_ColorSubTable( GLenum target, GLsizei start, - GLsizei count, GLenum format, GLenum type, - const GLvoid *data ) -{ - static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; - static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *texObj = NULL; - struct gl_color_table *table = NULL; - const GLfloat *scale = one, *bias = zero; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - texObj = _mesa_select_tex_object(ctx, texUnit, target); - if (texObj && !_mesa_is_proxy_texture(target)) { - table = &texObj->Palette; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)"); - return; - } - } - - assert(table); - - if (!_mesa_is_legal_format_and_type(ctx, format, type) || - format == GL_INTENSITY) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glColorSubTable(format or type)"); - return; - } - - if (count < 1) { - _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)"); - return; - } - - /* error should have been caught sooner */ - assert(_mesa_components_in_format(table->_BaseFormat) > 0); - - if (start + count > (GLint) table->Size) { - _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)"); - return; - } - - if (!table->TableF || !table->TableUB) { - /* a GL_OUT_OF_MEMORY error would have been recorded previously */ - return; - } - - store_colortable_entries(ctx, table, start, count, - format, type, data, - scale[0], bias[0], - scale[1], bias[1], - scale[2], bias[2], - scale[3], bias[3]); - - if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) { - /* per-texture object palette */ - if (ctx->Driver.UpdateTexturePalette) { - (*ctx->Driver.UpdateTexturePalette)( ctx, texObj ); - } - } - - ctx->NewState |= _NEW_PIXEL; -} - - - -static void GLAPIENTRY -_mesa_CopyColorTable(GLenum target, GLenum internalformat, - GLint x, GLint y, GLsizei width) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - return; /* no readbuffer - OK */ - } - - ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width ); -} - - - -static void GLAPIENTRY -_mesa_CopyColorSubTable(GLenum target, GLsizei start, - GLint x, GLint y, GLsizei width) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->ReadBuffer->_ColorReadBuffer) { - return; /* no readbuffer - OK */ - } - - ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width ); -} - - - -static void GLAPIENTRY -_mesa_GetColorTable( GLenum target, GLenum format, - GLenum type, GLvoid *data ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - GLfloat rgba[MAX_COLOR_TABLE_SIZE][4]; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->NewState) { - _mesa_update_state(ctx); - } - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj && !_mesa_is_proxy_texture(target)) { - table = &texobj->Palette; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)"); - return; - } - } - } - - ASSERT(table); - - if (table->Size <= 0) { - return; - } - - switch (table->_BaseFormat) { - case GL_ALPHA: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = 0; - rgba[i][GCOMP] = 0; - rgba[i][BCOMP] = 0; - rgba[i][ACOMP] = table->TableF[i]; - } - } - break; - case GL_LUMINANCE: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = table->TableF[i]; - rgba[i][ACOMP] = 1.0F; - } - } - break; - case GL_LUMINANCE_ALPHA: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = table->TableF[i*2+0]; - rgba[i][ACOMP] = table->TableF[i*2+1]; - } - } - break; - case GL_INTENSITY: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = - rgba[i][GCOMP] = - rgba[i][BCOMP] = - rgba[i][ACOMP] = table->TableF[i]; - } - } - break; - case GL_RGB: - { - GLuint i; - for (i = 0; i < table->Size; i++) { - rgba[i][RCOMP] = table->TableF[i*3+0]; - rgba[i][GCOMP] = table->TableF[i*3+1]; - rgba[i][BCOMP] = table->TableF[i*3+2]; - rgba[i][ACOMP] = 1.0F; - } - } - break; - case GL_RGBA: - memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat)); - break; - default: - _mesa_problem(ctx, "bad table format in glGetColorTable"); - return; - } - - data = _mesa_map_validate_pbo_dest(ctx, - 1, &ctx->Pack, table->Size, 1, 1, - format, type, data, - "glGetColorTable"); - if (!data) - return; - - _mesa_pack_rgba_span_float(ctx, table->Size, rgba, - format, type, data, &ctx->Pack, 0x0); - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - - -static void GLAPIENTRY -_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params) -{ - /* no extensions use this function */ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(target)"); -} - - - -static void GLAPIENTRY -_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params) -{ - /* no extensions use this function */ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameteriv(target)"); -} - - - -static void GLAPIENTRY -_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetColorTableParameterfv(target)"); - return; - } - } - } - - assert(table); - - switch (pname) { - case GL_COLOR_TABLE_FORMAT: - *params = (GLfloat) table->InternalFormat; - break; - case GL_COLOR_TABLE_WIDTH: - *params = (GLfloat) table->Size; - break; - case GL_COLOR_TABLE_RED_SIZE: - *params = (GLfloat) table->RedSize; - break; - case GL_COLOR_TABLE_GREEN_SIZE: - *params = (GLfloat) table->GreenSize; - break; - case GL_COLOR_TABLE_BLUE_SIZE: - *params = (GLfloat) table->BlueSize; - break; - case GL_COLOR_TABLE_ALPHA_SIZE: - *params = (GLfloat) table->AlphaSize; - break; - case GL_COLOR_TABLE_LUMINANCE_SIZE: - *params = (GLfloat) table->LuminanceSize; - break; - case GL_COLOR_TABLE_INTENSITY_SIZE: - *params = (GLfloat) table->IntensitySize; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(pname)" ); - return; - } -} - - - -static void GLAPIENTRY -_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_color_table *table = NULL; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (target) { - case GL_SHARED_TEXTURE_PALETTE_EXT: - table = &ctx->Texture.Palette; - break; - default: - /* Try texture targets */ - { - struct gl_texture_object *texobj - = _mesa_select_tex_object(ctx, texUnit, target); - if (texobj) { - table = &texobj->Palette; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetColorTableParameteriv(target)"); - return; - } - } - } - - assert(table); - - switch (pname) { - case GL_COLOR_TABLE_FORMAT: - *params = table->InternalFormat; - break; - case GL_COLOR_TABLE_WIDTH: - *params = table->Size; - break; - case GL_COLOR_TABLE_RED_SIZE: - *params = table->RedSize; - break; - case GL_COLOR_TABLE_GREEN_SIZE: - *params = table->GreenSize; - break; - case GL_COLOR_TABLE_BLUE_SIZE: - *params = table->BlueSize; - break; - case GL_COLOR_TABLE_ALPHA_SIZE: - *params = table->AlphaSize; - break; - case GL_COLOR_TABLE_LUMINANCE_SIZE: - *params = table->LuminanceSize; - break; - case GL_COLOR_TABLE_INTENSITY_SIZE: - *params = table->IntensitySize; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(pname)" ); - return; - } -} - - -void -_mesa_init_colortable_dispatch(struct _glapi_table *disp) -{ - SET_ColorSubTable(disp, _mesa_ColorSubTable); - SET_ColorTable(disp, _mesa_ColorTable); - SET_ColorTableParameterfv(disp, _mesa_ColorTableParameterfv); - SET_ColorTableParameteriv(disp, _mesa_ColorTableParameteriv); - SET_CopyColorSubTable(disp, _mesa_CopyColorSubTable); - SET_CopyColorTable(disp, _mesa_CopyColorTable); - SET_GetColorTable(disp, _mesa_GetColorTable); - SET_GetColorTableParameterfv(disp, _mesa_GetColorTableParameterfv); - SET_GetColorTableParameteriv(disp, _mesa_GetColorTableParameteriv); -} - - -#endif /* FEATURE_colortable */ - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - - -void -_mesa_init_colortable( struct gl_color_table *p ) -{ - p->TableF = NULL; - p->TableUB = NULL; - p->Size = 0; - p->InternalFormat = GL_RGBA; -} - - - -void -_mesa_free_colortable_data( struct gl_color_table *p ) -{ - if (p->TableF) { - free(p->TableF); - p->TableF = NULL; - } - if (p->TableUB) { - free(p->TableUB); - p->TableUB = NULL; - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "colortab.h"
+#include "context.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "pack.h"
+#include "pbo.h"
+#include "state.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "main/dispatch.h"
+
+
+#if FEATURE_colortable
+
+
+/**
+ * Given an internalFormat token passed to glColorTable,
+ * return the corresponding base format.
+ * Return -1 if invalid token.
+ */
+static GLint
+base_colortab_format( GLenum format )
+{
+ switch (format) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return GL_ALPHA;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return GL_INTENSITY;
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return GL_RGB;
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_RGBA;
+ default:
+ return -1; /* error */
+ }
+}
+
+
+
+/**
+ * Examine table's format and set the component sizes accordingly.
+ */
+static void
+set_component_sizes( struct gl_color_table *table )
+{
+ /* assuming the ubyte table */
+ const GLubyte sz = 8;
+
+ switch (table->_BaseFormat) {
+ case GL_ALPHA:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ case GL_LUMINANCE:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = 0;
+ table->IntensitySize = 0;
+ table->LuminanceSize = sz;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = sz;
+ break;
+ case GL_INTENSITY:
+ table->RedSize = 0;
+ table->GreenSize = 0;
+ table->BlueSize = 0;
+ table->AlphaSize = 0;
+ table->IntensitySize = sz;
+ table->LuminanceSize = 0;
+ break;
+ case GL_RGB:
+ table->RedSize = sz;
+ table->GreenSize = sz;
+ table->BlueSize = sz;
+ table->AlphaSize = 0;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ case GL_RGBA:
+ table->RedSize = sz;
+ table->GreenSize = sz;
+ table->BlueSize = sz;
+ table->AlphaSize = sz;
+ table->IntensitySize = 0;
+ table->LuminanceSize = 0;
+ break;
+ default:
+ _mesa_problem(NULL, "unexpected format in set_component_sizes");
+ }
+}
+
+
+
+/**
+ * Update/replace all or part of a color table. Helper function
+ * used by _mesa_ColorTable() and _mesa_ColorSubTable().
+ * The table->Table buffer should already be allocated.
+ * \param start first entry to update
+ * \param count number of entries to update
+ * \param format format of user-provided table data
+ * \param type datatype of user-provided table data
+ * \param data user-provided table data
+ * \param [rgba]Scale - RGBA scale factors
+ * \param [rgba]Bias - RGBA bias factors
+ */
+static void
+store_colortable_entries(struct gl_context *ctx, struct gl_color_table *table,
+ GLsizei start, GLsizei count,
+ GLenum format, GLenum type, const GLvoid *data,
+ GLfloat rScale, GLfloat rBias,
+ GLfloat gScale, GLfloat gBias,
+ GLfloat bScale, GLfloat bBias,
+ GLfloat aScale, GLfloat aBias)
+{
+ data = _mesa_map_validate_pbo_source(ctx,
+ 1, &ctx->Unpack, count, 1, 1,
+ format, type, data,
+ "glColor[Sub]Table");
+ if (!data)
+ return;
+
+ {
+ /* convert user-provided data to GLfloat values */
+ GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4];
+ GLfloat *tableF;
+ GLint i;
+
+ _mesa_unpack_color_span_float(ctx,
+ count, /* number of pixels */
+ table->_BaseFormat, /* dest format */
+ tempTab, /* dest address */
+ format, type, /* src format/type */
+ data, /* src data */
+ &ctx->Unpack,
+ IMAGE_CLAMP_BIT); /* transfer ops */
+
+ /* the destination */
+ tableF = table->TableF;
+
+ /* Apply scale & bias & clamp now */
+ switch (table->_BaseFormat) {
+ case GL_INTENSITY:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_LUMINANCE:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_ALPHA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_RGB:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F);
+ tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F);
+ }
+ break;
+ case GL_RGBA:
+ for (i = 0; i < count; i++) {
+ GLuint j = start + i;
+ tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F);
+ tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F);
+ tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F);
+ tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F);
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "Bad format in store_colortable_entries");
+ return;
+ }
+ }
+
+ /* update the ubyte table */
+ {
+ const GLint comps = _mesa_components_in_format(table->_BaseFormat);
+ const GLfloat *tableF = table->TableF + start * comps;
+ GLubyte *tableUB = table->TableUB + start * comps;
+ GLint i;
+ for (i = 0; i < count * comps; i++) {
+ CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]);
+ }
+ }
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorTable( GLenum target, GLenum internalFormat,
+ GLsizei width, GLenum format, GLenum type,
+ const GLvoid *data )
+{
+ static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+ static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ GLboolean proxy = GL_FALSE;
+ GLint baseFormat;
+ const GLfloat *scale = one, *bias = zero;
+ GLint comps;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ proxy = _mesa_is_proxy_texture(target);
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)");
+ return;
+ }
+ }
+ }
+
+ assert(table);
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
+ format == GL_INTENSITY) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glColorTable(format or type)");
+ return;
+ }
+
+ baseFormat = base_colortab_format(internalFormat);
+ if (baseFormat < 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(internalFormat)");
+ return;
+ }
+
+ if (width < 0 || (width != 0 && !_mesa_is_pow_two(width))) {
+ /* error */
+ if (proxy) {
+ table->Size = 0;
+ table->InternalFormat = (GLenum) 0;
+ table->_BaseFormat = (GLenum) 0;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorTable(width=%d)", width);
+ }
+ return;
+ }
+
+ if (width > (GLsizei) ctx->Const.MaxColorTableSize) {
+ if (proxy) {
+ table->Size = 0;
+ table->InternalFormat = (GLenum) 0;
+ table->_BaseFormat = (GLenum) 0;
+ }
+ else {
+ _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glColorTable(width)");
+ }
+ return;
+ }
+
+ table->Size = width;
+ table->InternalFormat = internalFormat;
+ table->_BaseFormat = (GLenum) baseFormat;
+
+ comps = _mesa_components_in_format(table->_BaseFormat);
+ assert(comps > 0); /* error should have been caught sooner */
+
+ if (!proxy) {
+ _mesa_free_colortable_data(table);
+
+ if (width > 0) {
+ table->TableF = (GLfloat *) malloc(comps * width * sizeof(GLfloat));
+ table->TableUB = (GLubyte *) malloc(comps * width * sizeof(GLubyte));
+
+ if (!table->TableF || !table->TableUB) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable");
+ return;
+ }
+
+ store_colortable_entries(ctx, table,
+ 0, width, /* start, count */
+ format, type, data,
+ scale[0], bias[0],
+ scale[1], bias[1],
+ scale[2], bias[2],
+ scale[3], bias[3]);
+ }
+ } /* proxy */
+
+ /* do this after the table's Type and Format are set */
+ set_component_sizes(table);
+
+ if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
+ /* texture object palette, texObj==NULL means the shared palette */
+ if (ctx->Driver.UpdateTexturePalette) {
+ (*ctx->Driver.UpdateTexturePalette)( ctx, texObj );
+ }
+ }
+
+ ctx->NewState |= _NEW_PIXEL;
+}
+
+
+
+void GLAPIENTRY
+_mesa_ColorSubTable( GLenum target, GLsizei start,
+ GLsizei count, GLenum format, GLenum type,
+ const GLvoid *data )
+{
+ static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 };
+ static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 };
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_texture_object *texObj = NULL;
+ struct gl_color_table *table = NULL;
+ const GLfloat *scale = one, *bias = zero;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texObj && !_mesa_is_proxy_texture(target)) {
+ table = &texObj->Palette;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)");
+ return;
+ }
+ }
+
+ assert(table);
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type) ||
+ format == GL_INTENSITY) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glColorSubTable(format or type)");
+ return;
+ }
+
+ if (count < 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)");
+ return;
+ }
+
+ /* error should have been caught sooner */
+ assert(_mesa_components_in_format(table->_BaseFormat) > 0);
+
+ if (start + count > (GLint) table->Size) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)");
+ return;
+ }
+
+ if (!table->TableF || !table->TableUB) {
+ /* a GL_OUT_OF_MEMORY error would have been recorded previously */
+ return;
+ }
+
+ store_colortable_entries(ctx, table, start, count,
+ format, type, data,
+ scale[0], bias[0],
+ scale[1], bias[1],
+ scale[2], bias[2],
+ scale[3], bias[3]);
+
+ if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) {
+ /* per-texture object palette */
+ if (ctx->Driver.UpdateTexturePalette) {
+ (*ctx->Driver.UpdateTexturePalette)( ctx, texObj );
+ }
+ }
+
+ ctx->NewState |= _NEW_PIXEL;
+}
+
+
+
+static void GLAPIENTRY
+_mesa_CopyColorTable(GLenum target, GLenum internalformat,
+ GLint x, GLint y, GLsizei width)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ return; /* no readbuffer - OK */
+ }
+
+ ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width );
+}
+
+
+
+static void GLAPIENTRY
+_mesa_CopyColorSubTable(GLenum target, GLsizei start,
+ GLint x, GLint y, GLsizei width)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (!ctx->ReadBuffer->_ColorReadBuffer) {
+ return; /* no readbuffer - OK */
+ }
+
+ ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width );
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTable( GLenum target, GLenum format,
+ GLenum type, GLvoid *data )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ GLfloat rgba[MAX_COLOR_TABLE_SIZE][4];
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj && !_mesa_is_proxy_texture(target)) {
+ table = &texobj->Palette;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)");
+ return;
+ }
+ }
+ }
+
+ ASSERT(table);
+
+ if (table->Size <= 0) {
+ return;
+ }
+
+ switch (table->_BaseFormat) {
+ case GL_ALPHA:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = 0;
+ rgba[i][GCOMP] = 0;
+ rgba[i][BCOMP] = 0;
+ rgba[i][ACOMP] = table->TableF[i];
+ }
+ }
+ break;
+ case GL_LUMINANCE:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = table->TableF[i];
+ rgba[i][ACOMP] = 1.0F;
+ }
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] = table->TableF[i*2+0];
+ rgba[i][ACOMP] = table->TableF[i*2+1];
+ }
+ }
+ break;
+ case GL_INTENSITY:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] =
+ rgba[i][GCOMP] =
+ rgba[i][BCOMP] =
+ rgba[i][ACOMP] = table->TableF[i];
+ }
+ }
+ break;
+ case GL_RGB:
+ {
+ GLuint i;
+ for (i = 0; i < table->Size; i++) {
+ rgba[i][RCOMP] = table->TableF[i*3+0];
+ rgba[i][GCOMP] = table->TableF[i*3+1];
+ rgba[i][BCOMP] = table->TableF[i*3+2];
+ rgba[i][ACOMP] = 1.0F;
+ }
+ }
+ break;
+ case GL_RGBA:
+ memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat));
+ break;
+ default:
+ _mesa_problem(ctx, "bad table format in glGetColorTable");
+ return;
+ }
+
+ data = _mesa_map_validate_pbo_dest(ctx,
+ 1, &ctx->Pack, table->Size, 1, 1,
+ format, type, data,
+ "glGetColorTable");
+ if (!data)
+ return;
+
+ _mesa_pack_rgba_span_float(ctx, table->Size, rgba,
+ format, type, data, &ctx->Pack, 0x0);
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+
+static void GLAPIENTRY
+_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params)
+{
+ /* no extensions use this function */
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(target)");
+}
+
+
+
+static void GLAPIENTRY
+_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params)
+{
+ /* no extensions use this function */
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+ _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameteriv(target)");
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameterfv(target)");
+ return;
+ }
+ }
+ }
+
+ assert(table);
+
+ switch (pname) {
+ case GL_COLOR_TABLE_FORMAT:
+ *params = (GLfloat) table->InternalFormat;
+ break;
+ case GL_COLOR_TABLE_WIDTH:
+ *params = (GLfloat) table->Size;
+ break;
+ case GL_COLOR_TABLE_RED_SIZE:
+ *params = (GLfloat) table->RedSize;
+ break;
+ case GL_COLOR_TABLE_GREEN_SIZE:
+ *params = (GLfloat) table->GreenSize;
+ break;
+ case GL_COLOR_TABLE_BLUE_SIZE:
+ *params = (GLfloat) table->BlueSize;
+ break;
+ case GL_COLOR_TABLE_ALPHA_SIZE:
+ *params = (GLfloat) table->AlphaSize;
+ break;
+ case GL_COLOR_TABLE_LUMINANCE_SIZE:
+ *params = (GLfloat) table->LuminanceSize;
+ break;
+ case GL_COLOR_TABLE_INTENSITY_SIZE:
+ *params = (GLfloat) table->IntensitySize;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(pname)" );
+ return;
+ }
+}
+
+
+
+static void GLAPIENTRY
+_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_color_table *table = NULL;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (target) {
+ case GL_SHARED_TEXTURE_PALETTE_EXT:
+ table = &ctx->Texture.Palette;
+ break;
+ default:
+ /* Try texture targets */
+ {
+ struct gl_texture_object *texobj
+ = _mesa_select_tex_object(ctx, texUnit, target);
+ if (texobj) {
+ table = &texobj->Palette;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetColorTableParameteriv(target)");
+ return;
+ }
+ }
+ }
+
+ assert(table);
+
+ switch (pname) {
+ case GL_COLOR_TABLE_FORMAT:
+ *params = table->InternalFormat;
+ break;
+ case GL_COLOR_TABLE_WIDTH:
+ *params = table->Size;
+ break;
+ case GL_COLOR_TABLE_RED_SIZE:
+ *params = table->RedSize;
+ break;
+ case GL_COLOR_TABLE_GREEN_SIZE:
+ *params = table->GreenSize;
+ break;
+ case GL_COLOR_TABLE_BLUE_SIZE:
+ *params = table->BlueSize;
+ break;
+ case GL_COLOR_TABLE_ALPHA_SIZE:
+ *params = table->AlphaSize;
+ break;
+ case GL_COLOR_TABLE_LUMINANCE_SIZE:
+ *params = table->LuminanceSize;
+ break;
+ case GL_COLOR_TABLE_INTENSITY_SIZE:
+ *params = table->IntensitySize;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(pname)" );
+ return;
+ }
+}
+
+
+void
+_mesa_init_colortable_dispatch(struct _glapi_table *disp)
+{
+ SET_ColorSubTable(disp, _mesa_ColorSubTable);
+ SET_ColorTable(disp, _mesa_ColorTable);
+ SET_ColorTableParameterfv(disp, _mesa_ColorTableParameterfv);
+ SET_ColorTableParameteriv(disp, _mesa_ColorTableParameteriv);
+ SET_CopyColorSubTable(disp, _mesa_CopyColorSubTable);
+ SET_CopyColorTable(disp, _mesa_CopyColorTable);
+ SET_GetColorTable(disp, _mesa_GetColorTable);
+ SET_GetColorTableParameterfv(disp, _mesa_GetColorTableParameterfv);
+ SET_GetColorTableParameteriv(disp, _mesa_GetColorTableParameteriv);
+}
+
+
+#endif /* FEATURE_colortable */
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+
+void
+_mesa_init_colortable( struct gl_color_table *p )
+{
+ p->TableF = NULL;
+ p->TableUB = NULL;
+ p->Size = 0;
+ p->InternalFormat = GL_RGBA;
+}
+
+
+
+void
+_mesa_free_colortable_data( struct gl_color_table *p )
+{
+ if (p->TableF) {
+ free(p->TableF);
+ p->TableF = NULL;
+ }
+ if (p->TableUB) {
+ free(p->TableUB);
+ p->TableUB = NULL;
+ }
+}
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h index 41cd48bc6..c1d773b18 100644 --- a/mesalib/src/mesa/main/compiler.h +++ b/mesalib/src/mesa/main/compiler.h @@ -60,29 +60,7 @@ extern "C" { /**
* Get standard integer types
*/
-#if defined(_MSC_VER)
- typedef __int8 int8_t;
- typedef unsigned __int8 uint8_t;
- typedef __int16 int16_t;
- typedef unsigned __int16 uint16_t;
- typedef __int32 int32_t;
- typedef unsigned __int32 uint32_t;
- typedef __int64 int64_t;
- typedef unsigned __int64 uint64_t;
-
-# if defined(_WIN64)
- typedef __int64 intptr_t;
- typedef unsigned __int64 uintptr_t;
-# else
- typedef __int32 intptr_t;
- typedef unsigned __int32 uintptr_t;
-# endif
-
-# define INT64_C(__val) __val##i64
-# define UINT64_C(__val) __val##ui64
-#else
-# include <stdint.h>
-#endif
+#include <stdint.h>
/**
diff --git a/mesalib/src/mesa/main/depth.c b/mesalib/src/mesa/main/depth.c index 52c69a6bc..d666ed5fe 100644 --- a/mesalib/src/mesa/main/depth.c +++ b/mesalib/src/mesa/main/depth.c @@ -1,174 +1,174 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "depth.h" -#include "enums.h" -#include "macros.h" -#include "mtypes.h" - - -/**********************************************************************/ -/***** API Functions *****/ -/**********************************************************************/ - - - -void GLAPIENTRY -_mesa_ClearDepth( GLclampd depth ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glClearDepth(%f)\n", depth); - - depth = CLAMP( depth, 0.0, 1.0 ); - - if (ctx->Depth.Clear == depth) - return; - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - ctx->Depth.Clear = depth; - if (ctx->Driver.ClearDepth) - (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear ); -} - - -void GLAPIENTRY -_mesa_ClearDepthf( GLclampf depth ) -{ - _mesa_ClearDepth(depth); -} - - -void GLAPIENTRY -_mesa_DepthFunc( GLenum func ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func)); - - switch (func) { - case GL_LESS: /* (default) pass if incoming z < stored z */ - case GL_GEQUAL: - case GL_LEQUAL: - case GL_GREATER: - case GL_NOTEQUAL: - case GL_EQUAL: - case GL_ALWAYS: - case GL_NEVER: - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" ); - return; - } - - if (ctx->Depth.Func == func) - return; - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - ctx->Depth.Func = func; - - if (ctx->Driver.DepthFunc) - ctx->Driver.DepthFunc( ctx, func ); -} - - - -void GLAPIENTRY -_mesa_DepthMask( GLboolean flag ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glDepthMask %d\n", flag); - - /* - * GL_TRUE indicates depth buffer writing is enabled (default) - * GL_FALSE indicates depth buffer writing is disabled - */ - if (ctx->Depth.Mask == flag) - return; - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - ctx->Depth.Mask = flag; - - if (ctx->Driver.DepthMask) - ctx->Driver.DepthMask( ctx, flag ); -} - - - -/** - * Specified by the GL_EXT_depth_bounds_test extension. - */ -void GLAPIENTRY -_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glDepthBounds(%f, %f)\n", zmin, zmax); - - if (zmin > zmax) { - _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)"); - return; - } - - zmin = CLAMP(zmin, 0.0, 1.0); - zmax = CLAMP(zmax, 0.0, 1.0); - - if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax) - return; - - FLUSH_VERTICES(ctx, _NEW_DEPTH); - ctx->Depth.BoundsMin = (GLfloat) zmin; - ctx->Depth.BoundsMax = (GLfloat) zmax; -} - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - - -/** - * Initialize the depth buffer attribute group in the given context. - */ -void -_mesa_init_depth(struct gl_context *ctx) -{ - ctx->Depth.Test = GL_FALSE; - ctx->Depth.Clear = 1.0; - ctx->Depth.Func = GL_LESS; - ctx->Depth.Mask = GL_TRUE; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "depth.h"
+#include "enums.h"
+#include "macros.h"
+#include "mtypes.h"
+
+
+/**********************************************************************/
+/***** API Functions *****/
+/**********************************************************************/
+
+
+
+void GLAPIENTRY
+_mesa_ClearDepth( GLclampd depth )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glClearDepth(%f)\n", depth);
+
+ depth = CLAMP( depth, 0.0, 1.0 );
+
+ if (ctx->Depth.Clear == depth)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_DEPTH);
+ ctx->Depth.Clear = depth;
+ if (ctx->Driver.ClearDepth)
+ (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
+}
+
+
+void GLAPIENTRY
+_mesa_ClearDepthf( GLclampf depth )
+{
+ _mesa_ClearDepth(depth);
+}
+
+
+void GLAPIENTRY
+_mesa_DepthFunc( GLenum func )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glDepthFunc %s\n", _mesa_lookup_enum_by_nr(func));
+
+ switch (func) {
+ case GL_LESS: /* (default) pass if incoming z < stored z */
+ case GL_GEQUAL:
+ case GL_LEQUAL:
+ case GL_GREATER:
+ case GL_NOTEQUAL:
+ case GL_EQUAL:
+ case GL_ALWAYS:
+ case GL_NEVER:
+ break;
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glDepth.Func" );
+ return;
+ }
+
+ if (ctx->Depth.Func == func)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_DEPTH);
+ ctx->Depth.Func = func;
+
+ if (ctx->Driver.DepthFunc)
+ ctx->Driver.DepthFunc( ctx, func );
+}
+
+
+
+void GLAPIENTRY
+_mesa_DepthMask( GLboolean flag )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glDepthMask %d\n", flag);
+
+ /*
+ * GL_TRUE indicates depth buffer writing is enabled (default)
+ * GL_FALSE indicates depth buffer writing is disabled
+ */
+ if (ctx->Depth.Mask == flag)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_DEPTH);
+ ctx->Depth.Mask = flag;
+
+ if (ctx->Driver.DepthMask)
+ ctx->Driver.DepthMask( ctx, flag );
+}
+
+
+
+/**
+ * Specified by the GL_EXT_depth_bounds_test extension.
+ */
+void GLAPIENTRY
+_mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glDepthBounds(%f, %f)\n", zmin, zmax);
+
+ if (zmin > zmax) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glDepthBoundsEXT(zmin > zmax)");
+ return;
+ }
+
+ zmin = CLAMP(zmin, 0.0, 1.0);
+ zmax = CLAMP(zmax, 0.0, 1.0);
+
+ if (ctx->Depth.BoundsMin == zmin && ctx->Depth.BoundsMax == zmax)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_DEPTH);
+ ctx->Depth.BoundsMin = (GLfloat) zmin;
+ ctx->Depth.BoundsMax = (GLfloat) zmax;
+}
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+
+/**
+ * Initialize the depth buffer attribute group in the given context.
+ */
+void
+_mesa_init_depth(struct gl_context *ctx)
+{
+ ctx->Depth.Test = GL_FALSE;
+ ctx->Depth.Clear = 1.0;
+ ctx->Depth.Func = GL_LESS;
+ ctx->Depth.Mask = GL_TRUE;
+}
diff --git a/mesalib/src/mesa/main/dlopen.c b/mesalib/src/mesa/main/dlopen.c index 57a33292e..62d9023a9 100644 --- a/mesalib/src/mesa/main/dlopen.c +++ b/mesalib/src/mesa/main/dlopen.c @@ -51,7 +51,7 @@ _mesa_dlopen(const char *libname, int flags) #elif defined(_GNU_SOURCE) flags = RTLD_LAZY | RTLD_GLOBAL; /* Overriding flags at this time */ return dlopen(libname, flags); -#elif defined(__MINGW32__) +#elif defined(__MINGW32__) | defined(_MSC_VER) return LoadLibraryA(libname); #else return NULL; @@ -82,7 +82,7 @@ _mesa_dlsym(void *handle, const char *fname) u.v = dlsym(handle, fname2); #elif defined(_GNU_SOURCE) u.v = dlsym(handle, fname); -#elif defined(__MINGW32__) +#elif defined(__MINGW32__) | defined(_MSC_VER) u.v = (void *) GetProcAddress(handle, fname); #else u.v = NULL; @@ -101,7 +101,7 @@ _mesa_dlclose(void *handle) (void) handle; #elif defined(_GNU_SOURCE) dlclose(handle); -#elif defined(__MINGW32__) +#elif defined(__MINGW32__) | defined(_MSC_VER) FreeLibrary(handle); #else (void) handle; diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c index fb86036a1..ab6e61fe3 100644 --- a/mesalib/src/mesa/main/drawpix.c +++ b/mesalib/src/mesa/main/drawpix.c @@ -1,302 +1,302 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "glheader.h" -#include "imports.h" -#include "bufferobj.h" -#include "context.h" -#include "drawpix.h" -#include "enums.h" -#include "feedback.h" -#include "framebuffer.h" -#include "mfeatures.h" -#include "pbo.h" -#include "readpix.h" -#include "state.h" -#include "dispatch.h" - - -#if FEATURE_drawpix - - -/* - * Execute glDrawPixels - */ -static void GLAPIENTRY -_mesa_DrawPixels( GLsizei width, GLsizei height, - GLenum format, GLenum type, const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glDrawPixels(%d, %d, %s, %s, %p) // to %s at %d, %d\n", - width, height, - _mesa_lookup_enum_by_nr(format), - _mesa_lookup_enum_by_nr(type), - pixels, - _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]), - IROUND(ctx->Current.RasterPos[0]), - IROUND(ctx->Current.RasterPos[1])); - - - if (width < 0 || height < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" ); - return; - } - - /* We're not using the current vertex program, and the driver may install - * its own. Note: this may dirty some state. - */ - _mesa_set_vp_override(ctx, GL_TRUE); - - /* Note: this call does state validation */ - if (!_mesa_valid_to_render(ctx, "glDrawPixels")) { - goto end; /* the error code was recorded */ - } - - if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) { - goto end; /* the error code was recorded */ - } - - if (!ctx->Current.RasterPosValid) { - goto end; /* no-op, not an error */ - } - - if (ctx->RenderMode == GL_RENDER) { - if (width > 0 && height > 0) { - /* Round, to satisfy conformance tests (matches SGI's OpenGL) */ - GLint x = IROUND(ctx->Current.RasterPos[0]); - GLint y = IROUND(ctx->Current.RasterPos[1]); - - if (ctx->Unpack.BufferObj->Name) { - /* unpack from PBO */ - if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, - format, type, pixels)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawPixels(invalid PBO access)"); - goto end; - } - if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) { - /* buffer is mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION, - "glDrawPixels(PBO is mapped)"); - goto end; - } - } - - ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type, - &ctx->Unpack, pixels); - } - } - else if (ctx->RenderMode == GL_FEEDBACK) { - /* Feedback the current raster pos info */ - FLUSH_CURRENT( ctx, 0 ); - _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN ); - _mesa_feedback_vertex( ctx, - ctx->Current.RasterPos, - ctx->Current.RasterColor, - ctx->Current.RasterTexCoords[0] ); - } - else { - ASSERT(ctx->RenderMode == GL_SELECT); - /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ - } - -end: - _mesa_set_vp_override(ctx, GL_FALSE); -} - - -static void GLAPIENTRY -_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, - GLenum type ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, - "glCopyPixels(%d, %d, %d, %d, %s) // from %s to %s at %d, %d\n", - srcx, srcy, width, height, - _mesa_lookup_enum_by_nr(type), - _mesa_lookup_enum_by_nr(ctx->ReadBuffer->ColorReadBuffer), - _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]), - IROUND(ctx->Current.RasterPos[0]), - IROUND(ctx->Current.RasterPos[1])); - - if (width < 0 || height < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)"); - return; - } - - /* Note: more detailed 'type' checking is done by the - * _mesa_source/dest_buffer_exists() calls below. That's where we - * check if the stencil buffer exists, etc. - */ - if (type != GL_COLOR && - type != GL_DEPTH && - type != GL_STENCIL && - type != GL_DEPTH_STENCIL) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels(type=%s)", - _mesa_lookup_enum_by_nr(type)); - return; - } - - /* We're not using the current vertex program, and the driver may install - * it's own. Note: this may dirty some state. - */ - _mesa_set_vp_override(ctx, GL_TRUE); - - /* Note: this call does state validation */ - if (!_mesa_valid_to_render(ctx, "glCopyPixels")) { - goto end; /* the error code was recorded */ - } - - /* Check read buffer's status (draw buffer was already checked) */ - if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "glCopyPixels(incomplete framebuffer)" ); - goto end; - } - - if (!_mesa_source_buffer_exists(ctx, type) || - !_mesa_dest_buffer_exists(ctx, type)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyPixels(missing source or dest buffer)"); - goto end; - } - - if (!ctx->Current.RasterPosValid || width ==0 || height == 0) { - goto end; /* no-op, not an error */ - } - - if (ctx->RenderMode == GL_RENDER) { - /* Round to satisfy conformance tests (matches SGI's OpenGL) */ - if (width > 0 && height > 0) { - GLint destx = IROUND(ctx->Current.RasterPos[0]); - GLint desty = IROUND(ctx->Current.RasterPos[1]); - ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty, - type ); - } - } - else if (ctx->RenderMode == GL_FEEDBACK) { - FLUSH_CURRENT( ctx, 0 ); - _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN ); - _mesa_feedback_vertex( ctx, - ctx->Current.RasterPos, - ctx->Current.RasterColor, - ctx->Current.RasterTexCoords[0] ); - } - else { - ASSERT(ctx->RenderMode == GL_SELECT); - /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ - } - -end: - _mesa_set_vp_override(ctx, GL_FALSE); -} - - -static void GLAPIENTRY -_mesa_Bitmap( GLsizei width, GLsizei height, - GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, - const GLubyte *bitmap ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (width < 0 || height < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" ); - return; - } - - if (!ctx->Current.RasterPosValid) { - return; /* do nothing */ - } - - /* Note: this call does state validation */ - if (!_mesa_valid_to_render(ctx, "glBitmap")) { - /* the error code was recorded */ - return; - } - - if (ctx->RenderMode == GL_RENDER) { - /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ - if (width > 0 && height > 0) { - const GLfloat epsilon = 0.0001F; - GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig); - GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig); - - if (ctx->Unpack.BufferObj->Name) { - /* unpack from PBO */ - if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, - GL_COLOR_INDEX, GL_BITMAP, - (GLvoid *) bitmap)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBitmap(invalid PBO access)"); - return; - } - if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) { - /* buffer is mapped - that's an error */ - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBitmap(PBO is mapped)"); - return; - } - } - - ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); - } - } -#if _HAVE_FULL_GL - else if (ctx->RenderMode == GL_FEEDBACK) { - FLUSH_CURRENT(ctx, 0); - _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN ); - _mesa_feedback_vertex( ctx, - ctx->Current.RasterPos, - ctx->Current.RasterColor, - ctx->Current.RasterTexCoords[0] ); - } - else { - ASSERT(ctx->RenderMode == GL_SELECT); - /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */ - } -#endif - - /* update raster position */ - ctx->Current.RasterPos[0] += xmove; - ctx->Current.RasterPos[1] += ymove; -} - - -void -_mesa_init_drawpix_dispatch(struct _glapi_table *disp) -{ - SET_Bitmap(disp, _mesa_Bitmap); - SET_CopyPixels(disp, _mesa_CopyPixels); - SET_DrawPixels(disp, _mesa_DrawPixels); -} - - -#endif /* FEATURE_drawpix */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glheader.h"
+#include "imports.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "drawpix.h"
+#include "enums.h"
+#include "feedback.h"
+#include "framebuffer.h"
+#include "mfeatures.h"
+#include "pbo.h"
+#include "readpix.h"
+#include "state.h"
+#include "dispatch.h"
+
+
+#if FEATURE_drawpix
+
+
+/*
+ * Execute glDrawPixels
+ */
+static void GLAPIENTRY
+_mesa_DrawPixels( GLsizei width, GLsizei height,
+ GLenum format, GLenum type, const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glDrawPixels(%d, %d, %s, %s, %p) // to %s at %d, %d\n",
+ width, height,
+ _mesa_lookup_enum_by_nr(format),
+ _mesa_lookup_enum_by_nr(type),
+ pixels,
+ _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]),
+ IROUND(ctx->Current.RasterPos[0]),
+ IROUND(ctx->Current.RasterPos[1]));
+
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
+ return;
+ }
+
+ /* We're not using the current vertex program, and the driver may install
+ * its own. Note: this may dirty some state.
+ */
+ _mesa_set_vp_override(ctx, GL_TRUE);
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glDrawPixels")) {
+ goto end; /* the error code was recorded */
+ }
+
+ if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
+ goto end; /* the error code was recorded */
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ goto end; /* no-op, not an error */
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ if (width > 0 && height > 0) {
+ /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+ GLint x = IROUND(ctx->Current.RasterPos[0]);
+ GLint y = IROUND(ctx->Current.RasterPos[1]);
+
+ if (ctx->Unpack.BufferObj->Name) {
+ /* unpack from PBO */
+ if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ goto end;
+ }
+ if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ goto end;
+ }
+ }
+
+ ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
+ &ctx->Unpack, pixels);
+ }
+ }
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ /* Feedback the current raster pos info */
+ FLUSH_CURRENT( ctx, 0 );
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+
+end:
+ _mesa_set_vp_override(ctx, GL_FALSE);
+}
+
+
+static void GLAPIENTRY
+_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+ GLenum type )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx,
+ "glCopyPixels(%d, %d, %d, %d, %s) // from %s to %s at %d, %d\n",
+ srcx, srcy, width, height,
+ _mesa_lookup_enum_by_nr(type),
+ _mesa_lookup_enum_by_nr(ctx->ReadBuffer->ColorReadBuffer),
+ _mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]),
+ IROUND(ctx->Current.RasterPos[0]),
+ IROUND(ctx->Current.RasterPos[1]));
+
+ if (width < 0 || height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
+ return;
+ }
+
+ /* Note: more detailed 'type' checking is done by the
+ * _mesa_source/dest_buffer_exists() calls below. That's where we
+ * check if the stencil buffer exists, etc.
+ */
+ if (type != GL_COLOR &&
+ type != GL_DEPTH &&
+ type != GL_STENCIL &&
+ type != GL_DEPTH_STENCIL) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels(type=%s)",
+ _mesa_lookup_enum_by_nr(type));
+ return;
+ }
+
+ /* We're not using the current vertex program, and the driver may install
+ * it's own. Note: this may dirty some state.
+ */
+ _mesa_set_vp_override(ctx, GL_TRUE);
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glCopyPixels")) {
+ goto end; /* the error code was recorded */
+ }
+
+ /* Check read buffer's status (draw buffer was already checked) */
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyPixels(incomplete framebuffer)" );
+ goto end;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, type) ||
+ !_mesa_dest_buffer_exists(ctx, type)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyPixels(missing source or dest buffer)");
+ goto end;
+ }
+
+ if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
+ goto end; /* no-op, not an error */
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Round to satisfy conformance tests (matches SGI's OpenGL) */
+ if (width > 0 && height > 0) {
+ GLint destx = IROUND(ctx->Current.RasterPos[0]);
+ GLint desty = IROUND(ctx->Current.RasterPos[1]);
+ ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty,
+ type );
+ }
+ }
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ FLUSH_CURRENT( ctx, 0 );
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+
+end:
+ _mesa_set_vp_override(ctx, GL_FALSE);
+}
+
+
+static void GLAPIENTRY
+_mesa_Bitmap( GLsizei width, GLsizei height,
+ GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
+ const GLubyte *bitmap )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
+ return;
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ return; /* do nothing */
+ }
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glBitmap")) {
+ /* the error code was recorded */
+ return;
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
+ if (width > 0 && height > 0) {
+ const GLfloat epsilon = 0.0001F;
+ GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
+ GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
+
+ if (ctx->Unpack.BufferObj->Name) {
+ /* unpack from PBO */
+ if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+ GL_COLOR_INDEX, GL_BITMAP,
+ (GLvoid *) bitmap)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBitmap(invalid PBO access)");
+ return;
+ }
+ if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBitmap(PBO is mapped)");
+ return;
+ }
+ }
+
+ ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
+ }
+ }
+#if _HAVE_FULL_GL
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ FLUSH_CURRENT(ctx, 0);
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+#endif
+
+ /* update raster position */
+ ctx->Current.RasterPos[0] += xmove;
+ ctx->Current.RasterPos[1] += ymove;
+}
+
+
+void
+_mesa_init_drawpix_dispatch(struct _glapi_table *disp)
+{
+ SET_Bitmap(disp, _mesa_Bitmap);
+ SET_CopyPixels(disp, _mesa_CopyPixels);
+ SET_DrawPixels(disp, _mesa_DrawPixels);
+}
+
+
+#endif /* FEATURE_drawpix */
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c index 4b6e91c4f..6de672e92 100644 --- a/mesalib/src/mesa/main/extensions.c +++ b/mesalib/src/mesa/main/extensions.c @@ -1,980 +1,980 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file - * \brief Extension handling - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "extensions.h" -#include "mfeatures.h" -#include "mtypes.h" - -enum { - DISABLE = 0, - GL = 1 << API_OPENGL, - ES1 = 1 << API_OPENGLES, - ES2 = 1 << API_OPENGLES2, -}; - -/** - * \brief An element of the \c extension_table. - */ -struct extension { - /** Name of extension, such as "GL_ARB_depth_clamp". */ - const char *name; - - /** Offset (in bytes) of the corresponding member in struct gl_extensions. */ - size_t offset; - - /** Set of API's in which the extension exists, as a bitset. */ - uint8_t api_set; - - /** Year the extension was proposed or approved. Used to sort the - * extension string chronologically. */ - uint16_t year; -}; - - -/** - * Given a member \c x of struct gl_extensions, return offset of - * \c x in bytes. - */ -#define o(x) offsetof(struct gl_extensions, x) - - -/** - * \brief Table of supported OpenGL extensions for all API's. - * - * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions. - */ -static const struct extension extension_table[] = { - /* ARB Extensions */ - { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL, 2009 }, - { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL, 2009 }, - { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL, 2008 }, - { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL, 2008 }, - { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL, 2003 }, - { "GL_ARB_depth_texture", o(ARB_depth_texture), GL, 2001 }, - { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL, 2002 }, - { "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL, 2009 }, - { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL, 2009 }, - { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL, 2008 }, - { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL, 2009 }, - { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL, 2009 }, - { "GL_ARB_fragment_program", o(ARB_fragment_program), GL, 2002 }, - { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL, 2003 }, - { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL, 2002 }, - { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL, 2005 }, - { "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 }, - { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL, 2003 }, - { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL, 2008 }, - { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL, 2008 }, - { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL, 2008 }, - { "GL_ARB_multisample", o(ARB_multisample), GL, 1994 }, - { "GL_ARB_multitexture", o(ARB_multitexture), GL, 1998 }, - { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL, 2003 }, - { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL, 2001 }, - { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 }, - { "GL_ARB_point_parameters", o(EXT_point_parameters), GL, 1997 }, - { "GL_ARB_point_sprite", o(ARB_point_sprite), GL, 2003 }, - { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 }, - { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL, 2009 }, - { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL, 2009 }, - { "GL_ARB_shader_objects", o(ARB_shader_objects), GL, 2002 }, - { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 }, - { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL, 2003 }, - { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL, 2001 }, - { "GL_ARB_shadow", o(ARB_shadow), GL, 2001 }, - { "GL_ARB_sync", o(ARB_sync), GL, 2003 }, - { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL, 2000 }, - { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL, 2008 }, - { "GL_ARB_texture_compression", o(ARB_texture_compression), GL, 2000 }, - { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 }, - { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL, 1999 }, - { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL, 1999 }, - { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL, 2001 }, - { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL, 2001 }, - { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL, 2001 }, - { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 2001 }, - { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL, 2009 }, - { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL, 2003 }, - { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL, 2004 }, - { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL, 2009 }, - { "GL_ARB_texture_rg", o(ARB_texture_rg), GL, 2008 }, - { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 }, - { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL, 2010 }, - { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL, 1999 }, - { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL, 2002 }, - { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 }, - { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL, 2006 }, - { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL, 2003 }, - { "GL_ARB_vertex_program", o(ARB_vertex_program), GL, 2002 }, - { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL, 2002 }, - { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL, 2009 }, - { "GL_ARB_window_pos", o(ARB_window_pos), GL, 2001 }, - - /* EXT extensions */ - { "GL_EXT_abgr", o(EXT_abgr), GL, 1995 }, - { "GL_EXT_bgra", o(EXT_bgra), GL, 1995 }, - { "GL_EXT_blend_color", o(EXT_blend_color), GL, 1995 }, - { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 }, - { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 }, - { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL, 1995 }, - { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2, 1995 }, - { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL, 1995 }, - { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL, 1996 }, - { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL, 1996 }, - { "GL_EXT_copy_texture", o(EXT_copy_texture), GL, 1995 }, - { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL, 2002 }, - { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL, 2006 }, - { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL, 2006 }, - { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL, 1997 }, - { "GL_EXT_fog_coord", o(EXT_fog_coord), GL, 1999 }, - { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL, 2005 }, - { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL, 2005 }, - { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL, 2000 }, - { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 }, - { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL, 2006 }, - { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL, 2006 }, - { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2, 1999 }, - { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2005 }, - { "GL_EXT_packed_float", o(EXT_packed_float), GL, 2004 }, - { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL, 1997 }, - { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL, 1995 }, - { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 }, - { "GL_EXT_point_parameters", o(EXT_point_parameters), GL, 1997 }, - { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL, 1995 }, - { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 }, - { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL, 1997 }, - { "GL_EXT_secondary_color", o(EXT_secondary_color), GL, 1999 }, - { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL, 2008 }, - { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL, 1997 }, - { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL, 2002 }, - { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL, 2000 }, - { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL, 2001 }, - { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL, 2002 }, - { "GL_EXT_subtexture", o(EXT_subtexture), GL, 1995 }, - { "GL_EXT_texture3D", o(EXT_texture3D), GL, 1996 }, - { "GL_EXT_texture_array", o(EXT_texture_array), GL, 2006 }, - { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2, 2004 }, - { "GL_EXT_texture_compression_latc", o(EXT_texture_compression_latc), GL, 2006 }, - { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 }, - { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL, 2000 }, - { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL, 2001 }, - { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 }, - { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL, 1999 }, - { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL, 2006 }, - { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL, 2000 }, - { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2, 1999 }, - { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2, 2009 }, - { "GL_EXT_texture_integer", o(EXT_texture_integer), GL, 2006 }, - { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1, 1999 }, - { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL, 2004 }, - { "GL_EXT_texture_object", o(EXT_texture_object), GL, 1995 }, - { "GL_EXT_texture", o(EXT_texture), GL, 1996 }, - { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL, 2004 }, - { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL, 2004 }, - { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL, 2004 }, - { "GL_EXT_texture_sRGB_decode", o(EXT_texture_sRGB_decode), GL, 2006 }, - { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 }, - { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2, 2008 }, - { "GL_EXT_timer_query", o(EXT_timer_query), GL, 2006 }, - { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL, 2011 }, - { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 }, - { "GL_EXT_vertex_array", o(EXT_vertex_array), GL, 1995 }, - { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL, 1997 }, - - /* OES extensions */ - { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1, 2009 }, - { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1, 2009 }, - { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1, 2009 }, - { "GL_OES_byte_coordinates", o(dummy_true), ES1, 2002 }, - { "GL_OES_compressed_paletted_texture", o(dummy_false), DISABLE, 2003 }, - { "GL_OES_depth24", o(EXT_framebuffer_object), ES1 | ES2, 2005 }, - { "GL_OES_depth32", o(dummy_false), DISABLE, 2005 }, - { "GL_OES_depth_texture", o(ARB_depth_texture), ES2, 2006 }, -#if FEATURE_OES_draw_texture - { "GL_OES_draw_texture", o(OES_draw_texture), ES1 | ES2, 2004 }, -#endif -#if FEATURE_OES_EGL_image - /* FIXME: Mesa expects GL_OES_EGL_image to be available in OpenGL contexts. */ - { "GL_OES_EGL_image", o(OES_EGL_image), GL | ES1 | ES2, 2006 }, -#endif - { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2, 2005 }, - { "GL_OES_fbo_render_mipmap", o(EXT_framebuffer_object), ES1 | ES2, 2005 }, - { "GL_OES_fixed_point", o(dummy_true), ES1, 2002 }, - { "GL_OES_framebuffer_object", o(EXT_framebuffer_object), ES1, 2005 }, - { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2, 2005 }, - { "GL_OES_matrix_get", o(dummy_true), ES1, 2004 }, - { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2, 2007 }, - { "GL_OES_point_size_array", o(dummy_true), ES1, 2004 }, - { "GL_OES_point_sprite", o(ARB_point_sprite), ES1, 2004 }, - { "GL_OES_query_matrix", o(dummy_true), ES1, 2003 }, - { "GL_OES_read_format", o(OES_read_format), GL | ES1, 2003 }, - { "GL_OES_rgb8_rgba8", o(EXT_framebuffer_object), ES1 | ES2, 2005 }, - { "GL_OES_single_precision", o(dummy_true), ES1, 2003 }, - { "GL_OES_standard_derivatives", o(OES_standard_derivatives), ES2, 2005 }, - { "GL_OES_stencil1", o(dummy_false), DISABLE, 2005 }, - { "GL_OES_stencil4", o(dummy_false), DISABLE, 2005 }, - { "GL_OES_stencil8", o(EXT_framebuffer_object), ES1 | ES2, 2005 }, - { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1, 2002 }, - { "GL_OES_texture_3D", o(EXT_texture3D), ES2, 2005 }, - { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1, 2007 }, - { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1, 2005 }, - { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1, 2005 }, - { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2, 2005 }, - - /* Vendor extensions */ - { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL, 1999 }, - { "GL_AMD_conservative_depth", o(AMD_conservative_depth), GL, 2009 }, - { "GL_APPLE_client_storage", o(APPLE_client_storage), GL, 2002 }, - { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL, 2006 }, - { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL, 2002 }, - { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL, 2002 }, - { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 }, - { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL, 2001 }, - { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL, 2001 }, - { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL, 2006 }, - { "GL_ATI_texture_compression_3dc", o(ATI_texture_compression_3dc), GL, 2004 }, - { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL, 2002 }, - { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL, 2006 }, - { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL, 1998 }, - { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL, 1996 }, - { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 1998 }, - { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 }, - { "GL_MESA_pack_invert", o(MESA_pack_invert), GL, 2002 }, - { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL, 1999 }, - { "GL_MESA_texture_array", o(MESA_texture_array), GL, 2007 }, - { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL, 2009 }, - { "GL_MESA_window_pos", o(ARB_window_pos), GL, 2000 }, - { "GL_MESAX_texture_float", o(ARB_texture_float), GL, 2009 }, - { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL, 2002 }, - { "GL_NV_blend_square", o(NV_blend_square), GL, 1999 }, - { "GL_NV_conditional_render", o(NV_conditional_render), GL, 2008 }, - { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL, 2001 }, - { "GL_NV_fragment_program", o(NV_fragment_program), GL, 2001 }, - { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL, 2005 }, - { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL, 1999 }, - { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2000 }, - { "GL_NV_point_sprite", o(NV_point_sprite), GL, 2001 }, - { "GL_NV_primitive_restart", o(NV_primitive_restart), GL, 2002 }, - { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL, 1999 }, - { "GL_NV_texture_barrier", o(NV_texture_barrier), GL, 2009 }, - { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL, 1999 }, - { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL, 2000 }, - { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL, 2001 }, - { "GL_NV_vertex_program", o(NV_vertex_program), GL, 2000 }, - { "GL_S3_s3tc", o(S3_s3tc), GL, 1999 }, - { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL, 1997 }, - { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL, 1997 }, - { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 }, - { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL, 1997 }, - { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL, 1999 }, - - { 0, 0, 0, 0 }, -}; - - -/** - * Given an extension name, lookup up the corresponding member of struct - * gl_extensions and return that member's offset (in bytes). If the name is - * not found in the \c extension_table, return 0. - * - * \param name Name of extension. - * \return Offset of member in struct gl_extensions. - */ -static size_t -name_to_offset(const char* name) -{ - const struct extension *i; - - if (name == 0) - return 0; - - for (i = extension_table; i->name != 0; ++i) { - if (strcmp(name, i->name) == 0) - return i->offset; - } - - return 0; -} - - -/** - * \brief Extensions enabled by default. - * - * These extensions are enabled by _mesa_init_extensions(). - * - * XXX: Should these defaults also apply to GLES? - */ -static const size_t default_extensions[] = { - o(ARB_copy_buffer), - o(ARB_draw_buffers), - o(ARB_multisample), - o(ARB_texture_compression), - o(ARB_transpose_matrix), - o(ARB_vertex_buffer_object), - o(ARB_window_pos), - - o(EXT_abgr), - o(EXT_bgra), - o(EXT_compiled_vertex_array), - o(EXT_copy_texture), - o(EXT_draw_range_elements), - o(EXT_multi_draw_arrays), - o(EXT_packed_pixels), - o(EXT_polygon_offset), - o(EXT_rescale_normal), - o(EXT_separate_specular_color), - o(EXT_subtexture), - o(EXT_texture), - o(EXT_texture3D), - o(EXT_texture_object), - o(EXT_vertex_array), - - o(OES_read_format), - o(OES_standard_derivatives), - - /* Vendor Extensions */ - o(APPLE_packed_pixels), - o(IBM_multimode_draw_arrays), - o(IBM_rasterpos_clip), - o(NV_light_max_exponent), - o(NV_texgen_reflection), - o(SGIS_generate_mipmap), - o(SGIS_texture_edge_clamp), - o(SGIS_texture_lod), - - 0, -}; - - -/** - * Enable all extensions suitable for a software-only renderer. - * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc. - */ -void -_mesa_enable_sw_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_copy_buffer = GL_TRUE;*/ - ctx->Extensions.ARB_depth_clamp = GL_TRUE; - ctx->Extensions.ARB_depth_texture = GL_TRUE; - /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/ - ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; - ctx->Extensions.ARB_draw_instanced = GL_TRUE; - ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; - ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; -#if FEATURE_ARB_fragment_program - ctx->Extensions.ARB_fragment_program = GL_TRUE; - ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; -#endif -#if FEATURE_ARB_fragment_shader - ctx->Extensions.ARB_fragment_shader = GL_TRUE; -#endif -#if FEATURE_ARB_framebuffer_object - ctx->Extensions.ARB_framebuffer_object = GL_TRUE; -#endif -#if FEATURE_ARB_geometry_shader4 && 0 - /* XXX re-enable when GLSL compiler again supports geometry shaders */ - ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; -#endif - ctx->Extensions.ARB_half_float_pixel = GL_TRUE; - ctx->Extensions.ARB_half_float_vertex = GL_TRUE; - ctx->Extensions.ARB_map_buffer_range = GL_TRUE; - ctx->Extensions.ARB_multitexture = GL_TRUE; -#if FEATURE_queryobj - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; -#endif - ctx->Extensions.ARB_point_sprite = GL_TRUE; -#if FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; - ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; -#endif -#if FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#endif - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.ARB_shadow_ambient = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; - ctx->Extensions.ARB_texture_cube_map = GL_TRUE; - ctx->Extensions.ARB_texture_env_combine = GL_TRUE; - ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/ - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; - ctx->Extensions.ARB_texture_rg = GL_TRUE; - ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE; - ctx->Extensions.ARB_vertex_array_object = GL_TRUE; -#if FEATURE_ARB_vertex_program - ctx->Extensions.ARB_vertex_program = GL_TRUE; -#endif -#if FEATURE_ARB_vertex_shader - ctx->Extensions.ARB_vertex_shader = GL_TRUE; -#endif -#if FEATURE_ARB_vertex_buffer_object - /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/ -#endif -#if FEATURE_ARB_sync - ctx->Extensions.ARB_sync = GL_TRUE; -#endif - ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; -#if FEATURE_APPLE_object_purgeable - ctx->Extensions.APPLE_object_purgeable = GL_TRUE; -#endif - ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE; -#if FEATURE_ATI_fragment_shader - ctx->Extensions.ATI_fragment_shader = GL_TRUE; -#endif - ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE; - ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; - ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; - ctx->Extensions.ATI_separate_stencil = GL_TRUE; - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - ctx->Extensions.EXT_blend_func_separate = GL_TRUE; - ctx->Extensions.EXT_blend_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_depth_bounds_test = GL_TRUE; - ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; -#if FEATURE_EXT_framebuffer_object - ctx->Extensions.EXT_framebuffer_object = GL_TRUE; -#endif -#if FEATURE_EXT_framebuffer_blit - ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; -#endif -#if FEATURE_ARB_framebuffer_object - ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; -#endif - /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/ - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - ctx->Extensions.EXT_paletted_texture = GL_TRUE; -#if FEATURE_EXT_pixel_buffer_object - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; -#endif - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_provoking_vertex = GL_TRUE; - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_shared_texture_palette = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = GL_TRUE; - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; - ctx->Extensions.EXT_texture_array = GL_TRUE; - ctx->Extensions.EXT_texture_compression_latc = GL_TRUE; - ctx->Extensions.EXT_texture_env_add = GL_TRUE; - ctx->Extensions.EXT_texture_env_combine = GL_TRUE; - ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE; - ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; -#if FEATURE_EXT_texture_sRGB - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; - ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; -#endif - ctx->Extensions.EXT_texture_swizzle = GL_TRUE; -#if FEATURE_EXT_transform_feedback - /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/ -#endif - ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; - /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/ - ctx->Extensions.MESA_pack_invert = GL_TRUE; - ctx->Extensions.MESA_resize_buffers = GL_TRUE; - ctx->Extensions.MESA_texture_array = GL_TRUE; - ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; - ctx->Extensions.NV_blend_square = GL_TRUE; - ctx->Extensions.NV_conditional_render = GL_TRUE; - /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/ - ctx->Extensions.NV_point_sprite = GL_TRUE; - ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; - ctx->Extensions.NV_texture_rectangle = GL_TRUE; - /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/ -#if FEATURE_NV_vertex_program - ctx->Extensions.NV_vertex_program = GL_TRUE; - ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; -#endif -#if FEATURE_NV_fragment_program - ctx->Extensions.NV_fragment_program = GL_TRUE; -#endif -#if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program - ctx->Extensions.NV_fragment_program_option = GL_TRUE; -#endif - /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/ - ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE; -#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program - ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; -#endif -#if FEATURE_texture_fxt1 - _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1"); -#endif -#if FEATURE_texture_s3tc - if (ctx->Mesa_DXTn) { - _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); - _mesa_enable_extension(ctx, "GL_S3_s3tc"); - } -#endif -} - - -/** - * Enable common EXT extensions in the ARB_imaging subset. - */ -void -_mesa_enable_imaging_extensions(struct gl_context *ctx) -{ - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; -} - - - -/** - * Enable all OpenGL 1.3 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_3_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_multisample = GL_TRUE;*/ - ctx->Extensions.ARB_multitexture = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; - /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/ - ctx->Extensions.ARB_texture_cube_map = GL_TRUE; - ctx->Extensions.ARB_texture_env_combine = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - ctx->Extensions.EXT_texture_env_add = GL_TRUE; - /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/ -} - - - -/** - * Enable all OpenGL 1.4 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_4_extensions(struct gl_context *ctx) -{ - ctx->Extensions.ARB_depth_texture = GL_TRUE; - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - ctx->Extensions.ARB_window_pos = GL_TRUE; - ctx->Extensions.EXT_blend_color = GL_TRUE; - ctx->Extensions.EXT_blend_func_separate = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; - /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/ - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; - /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/ -} - - -/** - * Enable all OpenGL 1.5 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_1_5_extensions(struct gl_context *ctx) -{ - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/ - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; -} - - -/** - * Enable all OpenGL 2.0 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_2_0_extensions(struct gl_context *ctx) -{ - /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/ -#if FEATURE_ARB_fragment_shader - ctx->Extensions.ARB_fragment_shader = GL_TRUE; -#endif - ctx->Extensions.ARB_point_sprite = GL_TRUE; - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; -#if FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; -#endif -#if FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#endif - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; -#if FEATURE_ARB_vertex_shader - ctx->Extensions.ARB_vertex_shader = GL_TRUE; -#endif -} - - -/** - * Enable all OpenGL 2.1 features and extensions. - * A convenience function to be called by drivers. - */ -void -_mesa_enable_2_1_extensions(struct gl_context *ctx) -{ -#if FEATURE_EXT_pixel_buffer_object - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; -#endif -#if FEATURE_EXT_texture_sRGB - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; -#endif -} - - -/** - * Either enable or disable the named extension. - * \return GL_TRUE for success, GL_FALSE if invalid extension name - */ -static GLboolean -set_extension( struct gl_context *ctx, const char *name, GLboolean state ) -{ - size_t offset; - - if (ctx->Extensions.String) { - /* The string was already queried - can't change it now! */ - _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name); - return GL_FALSE; - } - - offset = name_to_offset(name); - if (offset == 0) { - _mesa_problem(ctx, "Trying to enable/disable unknown extension %s", - name); - return GL_FALSE; - } else if (offset == o(dummy_true) && state == GL_FALSE) { - _mesa_problem(ctx, "Trying to disable a permanently enabled extension: " - "%s", name); - return GL_FALSE; - } else { - GLboolean *base = (GLboolean *) &ctx->Extensions; - base[offset] = state; - return GL_TRUE; - } -} - - -/** - * Enable the named extension. - * Typically called by drivers. - */ -void -_mesa_enable_extension( struct gl_context *ctx, const char *name ) -{ - if (!set_extension(ctx, name, GL_TRUE)) - _mesa_problem(ctx, "Trying to enable unknown extension: %s", name); -} - - -/** - * Disable the named extension. - * XXX is this really needed??? - */ -void -_mesa_disable_extension( struct gl_context *ctx, const char *name ) -{ - if (!set_extension(ctx, name, GL_FALSE)) - _mesa_problem(ctx, "Trying to disable unknown extension: %s", name); -} - - -/** - * Test if the named extension is enabled in this context. - */ -GLboolean -_mesa_extension_is_enabled( struct gl_context *ctx, const char *name ) -{ - size_t offset; - GLboolean *base; - - if (name == 0) - return GL_FALSE; - - offset = name_to_offset(name); - if (offset == 0) - return GL_FALSE; - base = (GLboolean *) &ctx->Extensions; - return base[offset]; -} - - -/** - * \brief Apply the \c MESA_EXTENSION_OVERRIDE environment variable. - * - * \c MESA_EXTENSION_OVERRIDE is a space-separated list of extensions to - * enable or disable. The list is processed thus: - * - Enable recognized extension names that are prefixed with '+'. - * - Disable recognized extension names that are prefixed with '-'. - * - Enable recognized extension names that are not prefixed. - * - Collect unrecognized extension names in a new string. - * - * \return Space-separated list of unrecognized extension names (which must - * be freed). Does not return \c NULL. - */ -static char * -get_extension_override( struct gl_context *ctx ) -{ - const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE"); - char *env; - char *ext; - char *extra_exts; - int len; - - if (env_const == NULL) { - /* Return the empty string rather than NULL. This simplifies the logic - * of client functions. */ - return calloc(1, sizeof(char)); - } - - /* extra_exts: List of unrecognized extensions. */ - extra_exts = calloc(strlen(env_const), sizeof(char)); - - /* Copy env_const because strtok() is destructive. */ - env = strdup(env_const); - for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) { - int enable; - int recognized; - switch (ext[0]) { - case '+': - enable = 1; - ++ext; - break; - case '-': - enable = 0; - ++ext; - break; - default: - enable = 1; - break; - } - recognized = set_extension(ctx, ext, enable); - if (!recognized) { - strcat(extra_exts, ext); - strcat(extra_exts, " "); - } - } - - /* Remove trailing space. */ - len = strlen(extra_exts); - if (extra_exts[len - 1] == ' ') - extra_exts[len - 1] = '\0'; - - return extra_exts; -} - - -/** - * \brief Initialize extension tables and enable default extensions. - * - * This should be called during context initialization. - * Note: Sets gl_extensions.dummy_true to true. - */ -void -_mesa_init_extensions( struct gl_context *ctx ) -{ - GLboolean *base = (GLboolean *) &ctx->Extensions; - GLboolean *sentinel = base + o(extension_sentinel); - GLboolean *i; - const size_t *j; - - /* First, turn all extensions off. */ - for (i = base; i != sentinel; ++i) - *i = GL_FALSE; - - /* Then, selectively turn default extensions on. */ - ctx->Extensions.dummy_true = GL_TRUE; - for (j = default_extensions; *j != 0; ++j) - base[*j] = GL_TRUE; -} - - -typedef unsigned short extension_index; - - -/** - * Compare two entries of the extensions table. Sorts first by year, - * then by name. - * - * Arguments are indices into extension_table. - */ -static int -extension_compare(const void *p1, const void *p2) -{ - extension_index i1 = * (const extension_index *) p1; - extension_index i2 = * (const extension_index *) p2; - const struct extension *e1 = &extension_table[i1]; - const struct extension *e2 = &extension_table[i2]; - int res; - - res = (int)e1->year - (int)e2->year; - - if (res == 0) { - res = strcmp(e1->name, e2->name); - } - - return res; -} - - -/** - * Construct the GL_EXTENSIONS string. Called the first time that - * glGetString(GL_EXTENSIONS) is called. - */ -GLubyte* -_mesa_make_extension_string(struct gl_context *ctx) -{ - /* The extension string. */ - char *exts = 0; - /* Length of extension string. */ - size_t length = 0; - /* Number of extensions */ - unsigned count; - /* Indices of the extensions sorted by year */ - extension_index *extension_indices; - /* String of extra extensions. */ - char *extra_extensions = get_extension_override(ctx); - GLboolean *base = (GLboolean *) &ctx->Extensions; - const struct extension *i; - unsigned j; - - - /* Compute length of the extension string. */ - count = 0; - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset] && (i->api_set & (1 << ctx->API))) { - length += strlen(i->name) + 1; /* +1 for space */ - ++count; - } - } - if (extra_extensions != NULL) - length += 1 + strlen(extra_extensions); /* +1 for space */ - - exts = (char *) calloc(length + 1, sizeof(char)); - if (exts == NULL) { - free(extra_extensions); - return NULL; - } - - extension_indices = malloc(count * sizeof extension_indices); - if (extension_indices == NULL) { - free(exts); - free(extra_extensions); - return NULL; - } - - /* Sort extensions in chronological order because certain old applications (e.g., - * Quake3 demo) store the extension list in a static size buffer so chronologically - * order ensure that the extensions that such applications expect will fit into - * that buffer. - */ - j = 0; - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset] && (i->api_set & (1 << ctx->API))) { - extension_indices[j++] = i - extension_table; - } - } - assert(j == count); - qsort(extension_indices, count, sizeof *extension_indices, extension_compare); - - /* Build the extension string.*/ - for (j = 0; j < count; ++j) { - i = &extension_table[extension_indices[j]]; - assert(base[i->offset] && (i->api_set & (1 << ctx->API))); - strcat(exts, i->name); - strcat(exts, " "); - } - free(extension_indices); - if (extra_extensions != 0) { - strcat(exts, extra_extensions); - free(extra_extensions); - } - - return (GLubyte *) exts; -} - -/** - * Return number of enabled extensions. - */ -GLuint -_mesa_get_extension_count(struct gl_context *ctx) -{ - GLboolean *base; - const struct extension *i; - - /* only count once */ - if (ctx->Extensions.Count != 0) - return ctx->Extensions.Count; - - base = (GLboolean *) &ctx->Extensions; - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset]) { - ctx->Extensions.Count++; - } - } - return ctx->Extensions.Count; -} - -/** - * Return name of i-th enabled extension - */ -const GLubyte * -_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index) -{ - const GLboolean *base; - size_t n; - const struct extension *i; - - if (index < 0) - return NULL; - - base = (GLboolean*) &ctx->Extensions; - n = 0; - for (i = extension_table; i->name != 0; ++i) { - if (n == index && base[i->offset]) { - return (GLubyte*) i->name; - } else if (base[i->offset]) { - ++n; - } - } - - return NULL; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file
+ * \brief Extension handling
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "extensions.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+
+enum {
+ DISABLE = 0,
+ GL = 1 << API_OPENGL,
+ ES1 = 1 << API_OPENGLES,
+ ES2 = 1 << API_OPENGLES2,
+};
+
+/**
+ * \brief An element of the \c extension_table.
+ */
+struct extension {
+ /** Name of extension, such as "GL_ARB_depth_clamp". */
+ const char *name;
+
+ /** Offset (in bytes) of the corresponding member in struct gl_extensions. */
+ size_t offset;
+
+ /** Set of API's in which the extension exists, as a bitset. */
+ uint8_t api_set;
+
+ /** Year the extension was proposed or approved. Used to sort the
+ * extension string chronologically. */
+ uint16_t year;
+};
+
+
+/**
+ * Given a member \c x of struct gl_extensions, return offset of
+ * \c x in bytes.
+ */
+#define o(x) offsetof(struct gl_extensions, x)
+
+
+/**
+ * \brief Table of supported OpenGL extensions for all API's.
+ *
+ * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions.
+ */
+static const struct extension extension_table[] = {
+ /* ARB Extensions */
+ { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL, 2009 },
+ { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL, 2009 },
+ { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL, 2008 },
+ { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL, 2008 },
+ { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL, 2003 },
+ { "GL_ARB_depth_texture", o(ARB_depth_texture), GL, 2001 },
+ { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL, 2002 },
+ { "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL, 2009 },
+ { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL, 2009 },
+ { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL, 2008 },
+ { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL, 2009 },
+ { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL, 2009 },
+ { "GL_ARB_fragment_program", o(ARB_fragment_program), GL, 2002 },
+ { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL, 2003 },
+ { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL, 2002 },
+ { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL, 2005 },
+ { "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 },
+ { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL, 2003 },
+ { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL, 2008 },
+ { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL, 2008 },
+ { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL, 2008 },
+ { "GL_ARB_multisample", o(ARB_multisample), GL, 1994 },
+ { "GL_ARB_multitexture", o(ARB_multitexture), GL, 1998 },
+ { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL, 2003 },
+ { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL, 2001 },
+ { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
+ { "GL_ARB_point_parameters", o(EXT_point_parameters), GL, 1997 },
+ { "GL_ARB_point_sprite", o(ARB_point_sprite), GL, 2003 },
+ { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
+ { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL, 2009 },
+ { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL, 2009 },
+ { "GL_ARB_shader_objects", o(ARB_shader_objects), GL, 2002 },
+ { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 },
+ { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL, 2003 },
+ { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL, 2001 },
+ { "GL_ARB_shadow", o(ARB_shadow), GL, 2001 },
+ { "GL_ARB_sync", o(ARB_sync), GL, 2003 },
+ { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL, 2000 },
+ { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL, 2008 },
+ { "GL_ARB_texture_compression", o(ARB_texture_compression), GL, 2000 },
+ { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
+ { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL, 1999 },
+ { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL, 1999 },
+ { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL, 2001 },
+ { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL, 2001 },
+ { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL, 2001 },
+ { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 2001 },
+ { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL, 2009 },
+ { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL, 2003 },
+ { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL, 2004 },
+ { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL, 2009 },
+ { "GL_ARB_texture_rg", o(ARB_texture_rg), GL, 2008 },
+ { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 },
+ { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL, 2010 },
+ { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL, 1999 },
+ { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL, 2002 },
+ { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
+ { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL, 2006 },
+ { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL, 2003 },
+ { "GL_ARB_vertex_program", o(ARB_vertex_program), GL, 2002 },
+ { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL, 2002 },
+ { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL, 2009 },
+ { "GL_ARB_window_pos", o(ARB_window_pos), GL, 2001 },
+
+ /* EXT extensions */
+ { "GL_EXT_abgr", o(EXT_abgr), GL, 1995 },
+ { "GL_EXT_bgra", o(EXT_bgra), GL, 1995 },
+ { "GL_EXT_blend_color", o(EXT_blend_color), GL, 1995 },
+ { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
+ { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 },
+ { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL, 1995 },
+ { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2, 1995 },
+ { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL, 1995 },
+ { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL, 1996 },
+ { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL, 1996 },
+ { "GL_EXT_copy_texture", o(EXT_copy_texture), GL, 1995 },
+ { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL, 2002 },
+ { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL, 2006 },
+ { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL, 2006 },
+ { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL, 1997 },
+ { "GL_EXT_fog_coord", o(EXT_fog_coord), GL, 1999 },
+ { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL, 2005 },
+ { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL, 2005 },
+ { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL, 2000 },
+ { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 },
+ { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL, 2006 },
+ { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL, 2006 },
+ { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2, 1999 },
+ { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2005 },
+ { "GL_EXT_packed_float", o(EXT_packed_float), GL, 2004 },
+ { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL, 1997 },
+ { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL, 1995 },
+ { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
+ { "GL_EXT_point_parameters", o(EXT_point_parameters), GL, 1997 },
+ { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL, 1995 },
+ { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
+ { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL, 1997 },
+ { "GL_EXT_secondary_color", o(EXT_secondary_color), GL, 1999 },
+ { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL, 2008 },
+ { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL, 1997 },
+ { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL, 2002 },
+ { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL, 2000 },
+ { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL, 2001 },
+ { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL, 2002 },
+ { "GL_EXT_subtexture", o(EXT_subtexture), GL, 1995 },
+ { "GL_EXT_texture3D", o(EXT_texture3D), GL, 1996 },
+ { "GL_EXT_texture_array", o(EXT_texture_array), GL, 2006 },
+ { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2, 2004 },
+ { "GL_EXT_texture_compression_latc", o(EXT_texture_compression_latc), GL, 2006 },
+ { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
+ { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL, 2000 },
+ { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL, 2001 },
+ { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 },
+ { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL, 1999 },
+ { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL, 2006 },
+ { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL, 2000 },
+ { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2, 1999 },
+ { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2, 2009 },
+ { "GL_EXT_texture_integer", o(EXT_texture_integer), GL, 2006 },
+ { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1, 1999 },
+ { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL, 2004 },
+ { "GL_EXT_texture_object", o(EXT_texture_object), GL, 1995 },
+ { "GL_EXT_texture", o(EXT_texture), GL, 1996 },
+ { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL, 2004 },
+ { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL, 2004 },
+ { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL, 2004 },
+ { "GL_EXT_texture_sRGB_decode", o(EXT_texture_sRGB_decode), GL, 2006 },
+ { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 },
+ { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2, 2008 },
+ { "GL_EXT_timer_query", o(EXT_timer_query), GL, 2006 },
+ { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL, 2011 },
+ { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
+ { "GL_EXT_vertex_array", o(EXT_vertex_array), GL, 1995 },
+ { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL, 1997 },
+
+ /* OES extensions */
+ { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1, 2009 },
+ { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1, 2009 },
+ { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1, 2009 },
+ { "GL_OES_byte_coordinates", o(dummy_true), ES1, 2002 },
+ { "GL_OES_compressed_paletted_texture", o(dummy_false), DISABLE, 2003 },
+ { "GL_OES_depth24", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_depth32", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_depth_texture", o(ARB_depth_texture), ES2, 2006 },
+#if FEATURE_OES_draw_texture
+ { "GL_OES_draw_texture", o(OES_draw_texture), ES1 | ES2, 2004 },
+#endif
+#if FEATURE_OES_EGL_image
+ /* FIXME: Mesa expects GL_OES_EGL_image to be available in OpenGL contexts. */
+ { "GL_OES_EGL_image", o(OES_EGL_image), GL | ES1 | ES2, 2006 },
+#endif
+ { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2, 2005 },
+ { "GL_OES_fbo_render_mipmap", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_fixed_point", o(dummy_true), ES1, 2002 },
+ { "GL_OES_framebuffer_object", o(EXT_framebuffer_object), ES1, 2005 },
+ { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_matrix_get", o(dummy_true), ES1, 2004 },
+ { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2, 2007 },
+ { "GL_OES_point_size_array", o(dummy_true), ES1, 2004 },
+ { "GL_OES_point_sprite", o(ARB_point_sprite), ES1, 2004 },
+ { "GL_OES_query_matrix", o(dummy_true), ES1, 2003 },
+ { "GL_OES_read_format", o(OES_read_format), GL | ES1, 2003 },
+ { "GL_OES_rgb8_rgba8", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_single_precision", o(dummy_true), ES1, 2003 },
+ { "GL_OES_standard_derivatives", o(OES_standard_derivatives), ES2, 2005 },
+ { "GL_OES_stencil1", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_stencil4", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_stencil8", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1, 2002 },
+ { "GL_OES_texture_3D", o(EXT_texture3D), ES2, 2005 },
+ { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1, 2007 },
+ { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1, 2005 },
+ { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1, 2005 },
+ { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2, 2005 },
+
+ /* Vendor extensions */
+ { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL, 1999 },
+ { "GL_AMD_conservative_depth", o(AMD_conservative_depth), GL, 2009 },
+ { "GL_APPLE_client_storage", o(APPLE_client_storage), GL, 2002 },
+ { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL, 2006 },
+ { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL, 2002 },
+ { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL, 2002 },
+ { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
+ { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL, 2001 },
+ { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL, 2001 },
+ { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL, 2006 },
+ { "GL_ATI_texture_compression_3dc", o(ATI_texture_compression_3dc), GL, 2004 },
+ { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL, 2002 },
+ { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL, 2006 },
+ { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL, 1998 },
+ { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL, 1996 },
+ { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 1998 },
+ { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 },
+ { "GL_MESA_pack_invert", o(MESA_pack_invert), GL, 2002 },
+ { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL, 1999 },
+ { "GL_MESA_texture_array", o(MESA_texture_array), GL, 2007 },
+ { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL, 2009 },
+ { "GL_MESA_window_pos", o(ARB_window_pos), GL, 2000 },
+ { "GL_MESAX_texture_float", o(ARB_texture_float), GL, 2009 },
+ { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL, 2002 },
+ { "GL_NV_blend_square", o(NV_blend_square), GL, 1999 },
+ { "GL_NV_conditional_render", o(NV_conditional_render), GL, 2008 },
+ { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL, 2001 },
+ { "GL_NV_fragment_program", o(NV_fragment_program), GL, 2001 },
+ { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL, 2005 },
+ { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL, 1999 },
+ { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2000 },
+ { "GL_NV_point_sprite", o(NV_point_sprite), GL, 2001 },
+ { "GL_NV_primitive_restart", o(NV_primitive_restart), GL, 2002 },
+ { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL, 1999 },
+ { "GL_NV_texture_barrier", o(NV_texture_barrier), GL, 2009 },
+ { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL, 1999 },
+ { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL, 2000 },
+ { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL, 2001 },
+ { "GL_NV_vertex_program", o(NV_vertex_program), GL, 2000 },
+ { "GL_S3_s3tc", o(S3_s3tc), GL, 1999 },
+ { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL, 1997 },
+ { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL, 1997 },
+ { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 },
+ { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL, 1997 },
+ { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL, 1999 },
+
+ { 0, 0, 0, 0 },
+};
+
+
+/**
+ * Given an extension name, lookup up the corresponding member of struct
+ * gl_extensions and return that member's offset (in bytes). If the name is
+ * not found in the \c extension_table, return 0.
+ *
+ * \param name Name of extension.
+ * \return Offset of member in struct gl_extensions.
+ */
+static size_t
+name_to_offset(const char* name)
+{
+ const struct extension *i;
+
+ if (name == 0)
+ return 0;
+
+ for (i = extension_table; i->name != 0; ++i) {
+ if (strcmp(name, i->name) == 0)
+ return i->offset;
+ }
+
+ return 0;
+}
+
+
+/**
+ * \brief Extensions enabled by default.
+ *
+ * These extensions are enabled by _mesa_init_extensions().
+ *
+ * XXX: Should these defaults also apply to GLES?
+ */
+static const size_t default_extensions[] = {
+ o(ARB_copy_buffer),
+ o(ARB_draw_buffers),
+ o(ARB_multisample),
+ o(ARB_texture_compression),
+ o(ARB_transpose_matrix),
+ o(ARB_vertex_buffer_object),
+ o(ARB_window_pos),
+
+ o(EXT_abgr),
+ o(EXT_bgra),
+ o(EXT_compiled_vertex_array),
+ o(EXT_copy_texture),
+ o(EXT_draw_range_elements),
+ o(EXT_multi_draw_arrays),
+ o(EXT_packed_pixels),
+ o(EXT_polygon_offset),
+ o(EXT_rescale_normal),
+ o(EXT_separate_specular_color),
+ o(EXT_subtexture),
+ o(EXT_texture),
+ o(EXT_texture3D),
+ o(EXT_texture_object),
+ o(EXT_vertex_array),
+
+ o(OES_read_format),
+ o(OES_standard_derivatives),
+
+ /* Vendor Extensions */
+ o(APPLE_packed_pixels),
+ o(IBM_multimode_draw_arrays),
+ o(IBM_rasterpos_clip),
+ o(NV_light_max_exponent),
+ o(NV_texgen_reflection),
+ o(SGIS_generate_mipmap),
+ o(SGIS_texture_edge_clamp),
+ o(SGIS_texture_lod),
+
+ 0,
+};
+
+
+/**
+ * Enable all extensions suitable for a software-only renderer.
+ * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.
+ */
+void
+_mesa_enable_sw_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_copy_buffer = GL_TRUE;*/
+ ctx->Extensions.ARB_depth_clamp = GL_TRUE;
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
+ ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
+ ctx->Extensions.ARB_draw_instanced = GL_TRUE;
+ ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
+ ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
+#if FEATURE_ARB_fragment_program
+ ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
+#endif
+#if FEATURE_ARB_fragment_shader
+ ctx->Extensions.ARB_fragment_shader = GL_TRUE;
+#endif
+#if FEATURE_ARB_framebuffer_object
+ ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
+#endif
+#if FEATURE_ARB_geometry_shader4 && 0
+ /* XXX re-enable when GLSL compiler again supports geometry shaders */
+ ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
+ ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
+ ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+#if FEATURE_queryobj
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+#if FEATURE_ARB_shader_objects
+ ctx->Extensions.ARB_shader_objects = GL_TRUE;
+ ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
+#endif
+#if FEATURE_ARB_shading_language_100
+ ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
+ ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.ARB_texture_rg = GL_TRUE;
+ ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
+ ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
+#if FEATURE_ARB_vertex_program
+ ctx->Extensions.ARB_vertex_program = GL_TRUE;
+#endif
+#if FEATURE_ARB_vertex_shader
+ ctx->Extensions.ARB_vertex_shader = GL_TRUE;
+#endif
+#if FEATURE_ARB_vertex_buffer_object
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
+#endif
+#if FEATURE_ARB_sync
+ ctx->Extensions.ARB_sync = GL_TRUE;
+#endif
+ ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
+#if FEATURE_APPLE_object_purgeable
+ ctx->Extensions.APPLE_object_purgeable = GL_TRUE;
+#endif
+ ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE;
+#if FEATURE_ATI_fragment_shader
+ ctx->Extensions.ATI_fragment_shader = GL_TRUE;
+#endif
+ ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE;
+ ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
+ ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
+ ctx->Extensions.ATI_separate_stencil = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
+ ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+#if FEATURE_EXT_framebuffer_object
+ ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
+#endif
+#if FEATURE_EXT_framebuffer_blit
+ ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
+#endif
+#if FEATURE_ARB_framebuffer_object
+ ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
+#endif
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ ctx->Extensions.EXT_paletted_texture = GL_TRUE;
+#if FEATURE_EXT_pixel_buffer_object
+ ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_shared_texture_palette = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
+ ctx->Extensions.EXT_texture_array = GL_TRUE;
+ ctx->Extensions.EXT_texture_compression_latc = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+#if FEATURE_EXT_texture_sRGB
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+ ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
+#if FEATURE_EXT_transform_feedback
+ /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/
+#endif
+ ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
+ /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.MESA_pack_invert = GL_TRUE;
+ ctx->Extensions.MESA_resize_buffers = GL_TRUE;
+ ctx->Extensions.MESA_texture_array = GL_TRUE;
+ ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
+ ctx->Extensions.NV_blend_square = GL_TRUE;
+ ctx->Extensions.NV_conditional_render = GL_TRUE;
+ /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/
+ ctx->Extensions.NV_point_sprite = GL_TRUE;
+ ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
+ ctx->Extensions.NV_texture_rectangle = GL_TRUE;
+ /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
+#if FEATURE_NV_vertex_program
+ ctx->Extensions.NV_vertex_program = GL_TRUE;
+ ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
+#endif
+#if FEATURE_NV_fragment_program
+ ctx->Extensions.NV_fragment_program = GL_TRUE;
+#endif
+#if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program
+ ctx->Extensions.NV_fragment_program_option = GL_TRUE;
+#endif
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
+ ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
+#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
+ ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
+#endif
+#if FEATURE_texture_fxt1
+ _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1");
+#endif
+#if FEATURE_texture_s3tc
+ if (ctx->Mesa_DXTn) {
+ _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
+ _mesa_enable_extension(ctx, "GL_S3_s3tc");
+ }
+#endif
+}
+
+
+/**
+ * Enable common EXT extensions in the ARB_imaging subset.
+ */
+void
+_mesa_enable_imaging_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+}
+
+
+
+/**
+ * Enable all OpenGL 1.3 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_3_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_multisample = GL_TRUE;*/
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
+ /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/
+ ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
+ ctx->Extensions.EXT_texture_env_add = GL_TRUE;
+ /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/
+}
+
+
+
+/**
+ * Enable all OpenGL 1.4 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_4_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ ctx->Extensions.ARB_window_pos = GL_TRUE;
+ ctx->Extensions.EXT_blend_color = GL_TRUE;
+ ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
+ ctx->Extensions.EXT_blend_minmax = GL_TRUE;
+ ctx->Extensions.EXT_blend_subtract = GL_TRUE;
+ ctx->Extensions.EXT_fog_coord = GL_TRUE;
+ /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
+ ctx->Extensions.EXT_point_parameters = GL_TRUE;
+ ctx->Extensions.EXT_secondary_color = GL_TRUE;
+ ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
+ ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
+}
+
+
+/**
+ * Enable all OpenGL 1.5 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_1_5_extensions(struct gl_context *ctx)
+{
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+}
+
+
+/**
+ * Enable all OpenGL 2.0 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_2_0_extensions(struct gl_context *ctx)
+{
+ /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
+#if FEATURE_ARB_fragment_shader
+ ctx->Extensions.ARB_fragment_shader = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+#if FEATURE_ARB_shader_objects
+ ctx->Extensions.ARB_shader_objects = GL_TRUE;
+#endif
+#if FEATURE_ARB_shading_language_100
+ ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
+#endif
+ ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
+#if FEATURE_ARB_vertex_shader
+ ctx->Extensions.ARB_vertex_shader = GL_TRUE;
+#endif
+}
+
+
+/**
+ * Enable all OpenGL 2.1 features and extensions.
+ * A convenience function to be called by drivers.
+ */
+void
+_mesa_enable_2_1_extensions(struct gl_context *ctx)
+{
+#if FEATURE_EXT_pixel_buffer_object
+ ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
+#endif
+#if FEATURE_EXT_texture_sRGB
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+#endif
+}
+
+
+/**
+ * Either enable or disable the named extension.
+ * \return GL_TRUE for success, GL_FALSE if invalid extension name
+ */
+static GLboolean
+set_extension( struct gl_context *ctx, const char *name, GLboolean state )
+{
+ size_t offset;
+
+ if (ctx->Extensions.String) {
+ /* The string was already queried - can't change it now! */
+ _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name);
+ return GL_FALSE;
+ }
+
+ offset = name_to_offset(name);
+ if (offset == 0) {
+ _mesa_problem(ctx, "Trying to enable/disable unknown extension %s",
+ name);
+ return GL_FALSE;
+ } else if (offset == o(dummy_true) && state == GL_FALSE) {
+ _mesa_problem(ctx, "Trying to disable a permanently enabled extension: "
+ "%s", name);
+ return GL_FALSE;
+ } else {
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ base[offset] = state;
+ return GL_TRUE;
+ }
+}
+
+
+/**
+ * Enable the named extension.
+ * Typically called by drivers.
+ */
+void
+_mesa_enable_extension( struct gl_context *ctx, const char *name )
+{
+ if (!set_extension(ctx, name, GL_TRUE))
+ _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
+}
+
+
+/**
+ * Disable the named extension.
+ * XXX is this really needed???
+ */
+void
+_mesa_disable_extension( struct gl_context *ctx, const char *name )
+{
+ if (!set_extension(ctx, name, GL_FALSE))
+ _mesa_problem(ctx, "Trying to disable unknown extension: %s", name);
+}
+
+
+/**
+ * Test if the named extension is enabled in this context.
+ */
+GLboolean
+_mesa_extension_is_enabled( struct gl_context *ctx, const char *name )
+{
+ size_t offset;
+ GLboolean *base;
+
+ if (name == 0)
+ return GL_FALSE;
+
+ offset = name_to_offset(name);
+ if (offset == 0)
+ return GL_FALSE;
+ base = (GLboolean *) &ctx->Extensions;
+ return base[offset];
+}
+
+
+/**
+ * \brief Apply the \c MESA_EXTENSION_OVERRIDE environment variable.
+ *
+ * \c MESA_EXTENSION_OVERRIDE is a space-separated list of extensions to
+ * enable or disable. The list is processed thus:
+ * - Enable recognized extension names that are prefixed with '+'.
+ * - Disable recognized extension names that are prefixed with '-'.
+ * - Enable recognized extension names that are not prefixed.
+ * - Collect unrecognized extension names in a new string.
+ *
+ * \return Space-separated list of unrecognized extension names (which must
+ * be freed). Does not return \c NULL.
+ */
+static char *
+get_extension_override( struct gl_context *ctx )
+{
+ const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ char *env;
+ char *ext;
+ char *extra_exts;
+ int len;
+
+ if (env_const == NULL) {
+ /* Return the empty string rather than NULL. This simplifies the logic
+ * of client functions. */
+ return calloc(1, sizeof(char));
+ }
+
+ /* extra_exts: List of unrecognized extensions. */
+ extra_exts = calloc(strlen(env_const), sizeof(char));
+
+ /* Copy env_const because strtok() is destructive. */
+ env = strdup(env_const);
+ for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
+ int enable;
+ int recognized;
+ switch (ext[0]) {
+ case '+':
+ enable = 1;
+ ++ext;
+ break;
+ case '-':
+ enable = 0;
+ ++ext;
+ break;
+ default:
+ enable = 1;
+ break;
+ }
+ recognized = set_extension(ctx, ext, enable);
+ if (!recognized) {
+ strcat(extra_exts, ext);
+ strcat(extra_exts, " ");
+ }
+ }
+
+ /* Remove trailing space. */
+ len = strlen(extra_exts);
+ if (extra_exts[len - 1] == ' ')
+ extra_exts[len - 1] = '\0';
+
+ return extra_exts;
+}
+
+
+/**
+ * \brief Initialize extension tables and enable default extensions.
+ *
+ * This should be called during context initialization.
+ * Note: Sets gl_extensions.dummy_true to true.
+ */
+void
+_mesa_init_extensions( struct gl_context *ctx )
+{
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLboolean *sentinel = base + o(extension_sentinel);
+ GLboolean *i;
+ const size_t *j;
+
+ /* First, turn all extensions off. */
+ for (i = base; i != sentinel; ++i)
+ *i = GL_FALSE;
+
+ /* Then, selectively turn default extensions on. */
+ ctx->Extensions.dummy_true = GL_TRUE;
+ for (j = default_extensions; *j != 0; ++j)
+ base[*j] = GL_TRUE;
+}
+
+
+typedef unsigned short extension_index;
+
+
+/**
+ * Compare two entries of the extensions table. Sorts first by year,
+ * then by name.
+ *
+ * Arguments are indices into extension_table.
+ */
+static int
+extension_compare(const void *p1, const void *p2)
+{
+ extension_index i1 = * (const extension_index *) p1;
+ extension_index i2 = * (const extension_index *) p2;
+ const struct extension *e1 = &extension_table[i1];
+ const struct extension *e2 = &extension_table[i2];
+ int res;
+
+ res = (int)e1->year - (int)e2->year;
+
+ if (res == 0) {
+ res = strcmp(e1->name, e2->name);
+ }
+
+ return res;
+}
+
+
+/**
+ * Construct the GL_EXTENSIONS string. Called the first time that
+ * glGetString(GL_EXTENSIONS) is called.
+ */
+GLubyte*
+_mesa_make_extension_string(struct gl_context *ctx)
+{
+ /* The extension string. */
+ char *exts = 0;
+ /* Length of extension string. */
+ size_t length = 0;
+ /* Number of extensions */
+ unsigned count;
+ /* Indices of the extensions sorted by year */
+ extension_index *extension_indices;
+ /* String of extra extensions. */
+ char *extra_extensions = get_extension_override(ctx);
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ const struct extension *i;
+ unsigned j;
+
+
+ /* Compute length of the extension string. */
+ count = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset] && (i->api_set & (1 << ctx->API))) {
+ length += strlen(i->name) + 1; /* +1 for space */
+ ++count;
+ }
+ }
+ if (extra_extensions != NULL)
+ length += 1 + strlen(extra_extensions); /* +1 for space */
+
+ exts = (char *) calloc(length + 1, sizeof(char));
+ if (exts == NULL) {
+ free(extra_extensions);
+ return NULL;
+ }
+
+ extension_indices = malloc(count * sizeof extension_indices);
+ if (extension_indices == NULL) {
+ free(exts);
+ free(extra_extensions);
+ return NULL;
+ }
+
+ /* Sort extensions in chronological order because certain old applications (e.g.,
+ * Quake3 demo) store the extension list in a static size buffer so chronologically
+ * order ensure that the extensions that such applications expect will fit into
+ * that buffer.
+ */
+ j = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset] && (i->api_set & (1 << ctx->API))) {
+ extension_indices[j++] = i - extension_table;
+ }
+ }
+ assert(j == count);
+ qsort(extension_indices, count, sizeof *extension_indices, extension_compare);
+
+ /* Build the extension string.*/
+ for (j = 0; j < count; ++j) {
+ i = &extension_table[extension_indices[j]];
+ assert(base[i->offset] && (i->api_set & (1 << ctx->API)));
+ strcat(exts, i->name);
+ strcat(exts, " ");
+ }
+ free(extension_indices);
+ if (extra_extensions != 0) {
+ strcat(exts, extra_extensions);
+ free(extra_extensions);
+ }
+
+ return (GLubyte *) exts;
+}
+
+/**
+ * Return number of enabled extensions.
+ */
+GLuint
+_mesa_get_extension_count(struct gl_context *ctx)
+{
+ GLboolean *base;
+ const struct extension *i;
+
+ /* only count once */
+ if (ctx->Extensions.Count != 0)
+ return ctx->Extensions.Count;
+
+ base = (GLboolean *) &ctx->Extensions;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset]) {
+ ctx->Extensions.Count++;
+ }
+ }
+ return ctx->Extensions.Count;
+}
+
+/**
+ * Return name of i-th enabled extension
+ */
+const GLubyte *
+_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index)
+{
+ const GLboolean *base;
+ size_t n;
+ const struct extension *i;
+
+ if (index < 0)
+ return NULL;
+
+ base = (GLboolean*) &ctx->Extensions;
+ n = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (n == index && base[i->offset]) {
+ return (GLubyte*) i->name;
+ } else if (base[i->offset]) {
+ ++n;
+ }
+ }
+
+ return NULL;
+}
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c index ffdd08425..0bffbcfae 100644 --- a/mesalib/src/mesa/main/fbobject.c +++ b/mesalib/src/mesa/main/fbobject.c @@ -1,2462 +1,2462 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/* - * GL_EXT/ARB_framebuffer_object extensions - * - * Authors: - * Brian Paul - */ - - -#include "buffers.h" -#include "context.h" -#include "enums.h" -#include "fbobject.h" -#include "formats.h" -#include "framebuffer.h" -#include "hash.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "renderbuffer.h" -#include "state.h" -#include "teximage.h" -#include "texobj.h" - - -/** Set this to 1 to help debug FBO incompleteness problems */ -#define DEBUG_FBO 0 - -/** Set this to 1 to debug/log glBlitFramebuffer() calls */ -#define DEBUG_BLIT 0 - - -/** - * Notes: - * - * None of the GL_EXT_framebuffer_object functions are compiled into - * display lists. - */ - - - -/* - * When glGenRender/FramebuffersEXT() is called we insert pointers to - * these placeholder objects into the hash table. - * Later, when the object ID is first bound, we replace the placeholder - * with the real frame/renderbuffer. - */ -static struct gl_framebuffer DummyFramebuffer; -static struct gl_renderbuffer DummyRenderbuffer; - -/* We bind this framebuffer when applications pass a NULL - * drawable/surface in make current. */ -static struct gl_framebuffer IncompleteFramebuffer; - - -#define IS_CUBE_FACE(TARGET) \ - ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \ - (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) - - -static void -delete_dummy_renderbuffer(struct gl_renderbuffer *rb) -{ - /* no op */ -} - -static void -delete_dummy_framebuffer(struct gl_framebuffer *fb) -{ - /* no op */ -} - - -void -_mesa_init_fbobjects(struct gl_context *ctx) -{ - _glthread_INIT_MUTEX(DummyFramebuffer.Mutex); - _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex); - _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex); - DummyFramebuffer.Delete = delete_dummy_framebuffer; - DummyRenderbuffer.Delete = delete_dummy_renderbuffer; - IncompleteFramebuffer.Delete = delete_dummy_framebuffer; -} - -struct gl_framebuffer * -_mesa_get_incomplete_framebuffer(void) -{ - return &IncompleteFramebuffer; -} - -/** - * Helper routine for getting a gl_renderbuffer. - */ -struct gl_renderbuffer * -_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id) -{ - struct gl_renderbuffer *rb; - - if (id == 0) - return NULL; - - rb = (struct gl_renderbuffer *) - _mesa_HashLookup(ctx->Shared->RenderBuffers, id); - return rb; -} - - -/** - * Helper routine for getting a gl_framebuffer. - */ -struct gl_framebuffer * -_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id) -{ - struct gl_framebuffer *fb; - - if (id == 0) - return NULL; - - fb = (struct gl_framebuffer *) - _mesa_HashLookup(ctx->Shared->FrameBuffers, id); - return fb; -} - - -/** - * Mark the given framebuffer as invalid. This will force the - * test for framebuffer completeness to be done before the framebuffer - * is used. - */ -static void -invalidate_framebuffer(struct gl_framebuffer *fb) -{ - fb->_Status = 0; /* "indeterminate" */ -} - - -/** - * Return the gl_framebuffer object which corresponds to the given - * framebuffer target, such as GL_DRAW_FRAMEBUFFER. - * Check support for GL_EXT_framebuffer_blit to determine if certain - * targets are legal. - * \return gl_framebuffer pointer or NULL if target is illegal - */ -static struct gl_framebuffer * -get_framebuffer_target(struct gl_context *ctx, GLenum target) -{ - switch (target) { - case GL_DRAW_FRAMEBUFFER: - return ctx->Extensions.EXT_framebuffer_blit ? ctx->DrawBuffer : NULL; - case GL_READ_FRAMEBUFFER: - return ctx->Extensions.EXT_framebuffer_blit ? ctx->ReadBuffer : NULL; - case GL_FRAMEBUFFER_EXT: - return ctx->DrawBuffer; - default: - return NULL; - } -} - - -/** - * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding - * gl_renderbuffer_attachment object. - * This function is only used for user-created FB objects, not the - * default / window-system FB object. - * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to - * the depth buffer attachment point. - */ -struct gl_renderbuffer_attachment * -_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb, - GLenum attachment) -{ - GLuint i; - - assert(fb->Name > 0); - - switch (attachment) { - case GL_COLOR_ATTACHMENT0_EXT: - case GL_COLOR_ATTACHMENT1_EXT: - case GL_COLOR_ATTACHMENT2_EXT: - case GL_COLOR_ATTACHMENT3_EXT: - case GL_COLOR_ATTACHMENT4_EXT: - case GL_COLOR_ATTACHMENT5_EXT: - case GL_COLOR_ATTACHMENT6_EXT: - case GL_COLOR_ATTACHMENT7_EXT: - case GL_COLOR_ATTACHMENT8_EXT: - case GL_COLOR_ATTACHMENT9_EXT: - case GL_COLOR_ATTACHMENT10_EXT: - case GL_COLOR_ATTACHMENT11_EXT: - case GL_COLOR_ATTACHMENT12_EXT: - case GL_COLOR_ATTACHMENT13_EXT: - case GL_COLOR_ATTACHMENT14_EXT: - case GL_COLOR_ATTACHMENT15_EXT: - i = attachment - GL_COLOR_ATTACHMENT0_EXT; - if (i >= ctx->Const.MaxColorAttachments) { - return NULL; - } - return &fb->Attachment[BUFFER_COLOR0 + i]; - case GL_DEPTH_STENCIL_ATTACHMENT: - /* fall-through */ - case GL_DEPTH_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_DEPTH_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_DEPTH]; - case GL_STENCIL_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_STENCIL_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_STENCIL]; - default: - return NULL; - } -} - - -/** - * As above, but only used for getting attachments of the default / - * window-system framebuffer (not user-created framebuffer objects). - */ -static struct gl_renderbuffer_attachment * -_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb, - GLenum attachment) -{ - assert(fb->Name == 0); - - switch (attachment) { - case GL_FRONT_LEFT: - return &fb->Attachment[BUFFER_FRONT_LEFT]; - case GL_FRONT_RIGHT: - return &fb->Attachment[BUFFER_FRONT_RIGHT]; - case GL_BACK_LEFT: - return &fb->Attachment[BUFFER_BACK_LEFT]; - case GL_BACK_RIGHT: - return &fb->Attachment[BUFFER_BACK_RIGHT]; - case GL_AUX0: - if (fb->Visual.numAuxBuffers == 1) { - return &fb->Attachment[BUFFER_AUX0]; - } - return NULL; - case GL_DEPTH_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_DEPTH_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_DEPTH]; - case GL_STENCIL_BUFFER: - /* fall-through / new in GL 3.0 */ - case GL_STENCIL_ATTACHMENT_EXT: - return &fb->Attachment[BUFFER_STENCIL]; - default: - return NULL; - } -} - - - -/** - * Remove any texture or renderbuffer attached to the given attachment - * point. Update reference counts, etc. - */ -void -_mesa_remove_attachment(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att) -{ - if (att->Type == GL_TEXTURE) { - ASSERT(att->Texture); - if (ctx->Driver.FinishRenderTexture) { - /* tell driver that we're done rendering to this texture. */ - ctx->Driver.FinishRenderTexture(ctx, att); - } - _mesa_reference_texobj(&att->Texture, NULL); /* unbind */ - ASSERT(!att->Texture); - } - if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) { - ASSERT(!att->Texture); - _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */ - ASSERT(!att->Renderbuffer); - } - att->Type = GL_NONE; - att->Complete = GL_TRUE; -} - - -/** - * Bind a texture object to an attachment point. - * The previous binding, if any, will be removed first. - */ -void -_mesa_set_texture_attachment(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer_attachment *att, - struct gl_texture_object *texObj, - GLenum texTarget, GLuint level, GLuint zoffset) -{ - if (att->Texture == texObj) { - /* re-attaching same texture */ - ASSERT(att->Type == GL_TEXTURE); - if (ctx->Driver.FinishRenderTexture) - ctx->Driver.FinishRenderTexture(ctx, att); - } - else { - /* new attachment */ - if (ctx->Driver.FinishRenderTexture && att->Texture) - ctx->Driver.FinishRenderTexture(ctx, att); - _mesa_remove_attachment(ctx, att); - att->Type = GL_TEXTURE; - assert(!att->Texture); - _mesa_reference_texobj(&att->Texture, texObj); - } - - /* always update these fields */ - att->TextureLevel = level; - att->CubeMapFace = _mesa_tex_target_to_face(texTarget); - att->Zoffset = zoffset; - att->Complete = GL_FALSE; - - if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) { - ctx->Driver.RenderTexture(ctx, fb, att); - } - - invalidate_framebuffer(fb); -} - - -/** - * Bind a renderbuffer to an attachment point. - * The previous binding, if any, will be removed first. - */ -void -_mesa_set_renderbuffer_attachment(struct gl_context *ctx, - struct gl_renderbuffer_attachment *att, - struct gl_renderbuffer *rb) -{ - /* XXX check if re-doing same attachment, exit early */ - _mesa_remove_attachment(ctx, att); - att->Type = GL_RENDERBUFFER_EXT; - att->Texture = NULL; /* just to be safe */ - att->Complete = GL_FALSE; - _mesa_reference_renderbuffer(&att->Renderbuffer, rb); -} - - -/** - * Fallback for ctx->Driver.FramebufferRenderbuffer() - * Attach a renderbuffer object to a framebuffer object. - */ -void -_mesa_framebuffer_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - GLenum attachment, struct gl_renderbuffer *rb) -{ - struct gl_renderbuffer_attachment *att; - - _glthread_LOCK_MUTEX(fb->Mutex); - - att = _mesa_get_attachment(ctx, fb, attachment); - ASSERT(att); - if (rb) { - _mesa_set_renderbuffer_attachment(ctx, att, rb); - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) { - /* do stencil attachment here (depth already done above) */ - att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT); - assert(att); - _mesa_set_renderbuffer_attachment(ctx, att, rb); - } - rb->AttachedAnytime = GL_TRUE; - } - else { - _mesa_remove_attachment(ctx, att); - } - - invalidate_framebuffer(fb); - - _glthread_UNLOCK_MUTEX(fb->Mutex); -} - - -/** - * Fallback for ctx->Driver.ValidateFramebuffer() - * Check if the renderbuffer's formats are supported by the software - * renderer. - * Drivers should probably override this. - */ -void -_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - gl_buffer_index buf; - for (buf = 0; buf < BUFFER_COUNT; buf++) { - const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer; - if (rb) { - switch (rb->_BaseFormat) { - case GL_ALPHA: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE: - case GL_INTENSITY: - case GL_RED: - case GL_RG: - fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED; - return; - default: - /* render buffer format is supported by software rendering */ - ; - } - } - } -} - - -/** - * For debug only. - */ -static void -att_incomplete(const char *msg) -{ -#if DEBUG_FBO - _mesa_debug(NULL, "attachment incomplete: %s\n", msg); -#else - (void) msg; -#endif -} - - -/** - * For debug only. - */ -static void -fbo_incomplete(const char *msg, int index) -{ -#if DEBUG_FBO - _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index); -#else - (void) msg; - (void) index; -#endif -} - - -/** - * Is the given base format a legal format for a color renderbuffer? - */ -GLboolean -_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat) -{ - switch (baseFormat) { - case GL_RGB: - case GL_RGBA: - return GL_TRUE; - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - case GL_ALPHA: - return ctx->Extensions.ARB_framebuffer_object; - case GL_RED: - case GL_RG: - return ctx->Extensions.ARB_texture_rg; - default: - return GL_FALSE; - } -} - - -/** - * Is the given base format a legal format for a depth/stencil renderbuffer? - */ -static GLboolean -is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat) -{ - switch (baseFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_STENCIL_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if an attachment point is complete and update its Complete field. - * \param format if GL_COLOR, this is a color attachment point, - * if GL_DEPTH, this is a depth component attachment point, - * if GL_STENCIL, this is a stencil component attachment point. - */ -static void -test_attachment_completeness(const struct gl_context *ctx, GLenum format, - struct gl_renderbuffer_attachment *att) -{ - assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL); - - /* assume complete */ - att->Complete = GL_TRUE; - - /* Look for reasons why the attachment might be incomplete */ - if (att->Type == GL_TEXTURE) { - const struct gl_texture_object *texObj = att->Texture; - struct gl_texture_image *texImage; - GLenum baseFormat; - - if (!texObj) { - att_incomplete("no texobj"); - att->Complete = GL_FALSE; - return; - } - - texImage = texObj->Image[att->CubeMapFace][att->TextureLevel]; - if (!texImage) { - att_incomplete("no teximage"); - att->Complete = GL_FALSE; - return; - } - if (texImage->Width < 1 || texImage->Height < 1) { - att_incomplete("teximage width/height=0"); - printf("texobj = %u\n", texObj->Name); - printf("level = %d\n", att->TextureLevel); - att->Complete = GL_FALSE; - return; - } - if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) { - att_incomplete("bad z offset"); - att->Complete = GL_FALSE; - return; - } - - baseFormat = _mesa_get_format_base_format(texImage->TexFormat); - - if (format == GL_COLOR) { - if (!_mesa_is_legal_color_format(ctx, baseFormat)) { - att_incomplete("bad format"); - att->Complete = GL_FALSE; - return; - } - if (_mesa_is_format_compressed(texImage->TexFormat)) { - att_incomplete("compressed internalformat"); - att->Complete = GL_FALSE; - return; - } - } - else if (format == GL_DEPTH) { - if (baseFormat == GL_DEPTH_COMPONENT) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - ctx->Extensions.ARB_depth_texture && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att->Complete = GL_FALSE; - att_incomplete("bad depth format"); - return; - } - } - else { - ASSERT(format == GL_STENCIL); - if (ctx->Extensions.EXT_packed_depth_stencil && - ctx->Extensions.ARB_depth_texture && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - /* no such thing as stencil-only textures */ - att_incomplete("illegal stencil texture"); - att->Complete = GL_FALSE; - return; - } - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - const GLenum baseFormat = - _mesa_get_format_base_format(att->Renderbuffer->Format); - - ASSERT(att->Renderbuffer); - if (!att->Renderbuffer->InternalFormat || - att->Renderbuffer->Width < 1 || - att->Renderbuffer->Height < 1) { - att_incomplete("0x0 renderbuffer"); - att->Complete = GL_FALSE; - return; - } - if (format == GL_COLOR) { - if (!_mesa_is_legal_color_format(ctx, baseFormat)) { - att_incomplete("bad renderbuffer color format"); - att->Complete = GL_FALSE; - return; - } - } - else if (format == GL_DEPTH) { - if (baseFormat == GL_DEPTH_COMPONENT) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att_incomplete("bad renderbuffer depth format"); - att->Complete = GL_FALSE; - return; - } - } - else { - assert(format == GL_STENCIL); - if (baseFormat == GL_STENCIL_INDEX) { - /* OK */ - } - else if (ctx->Extensions.EXT_packed_depth_stencil && - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* OK */ - } - else { - att->Complete = GL_FALSE; - att_incomplete("bad renderbuffer stencil format"); - return; - } - } - } - else { - ASSERT(att->Type == GL_NONE); - /* complete */ - return; - } -} - - -/** - * Test if the given framebuffer object is complete and update its - * Status field with the results. - * Calls the ctx->Driver.ValidateFramebuffer() function to allow the - * driver to make hardware-specific validation/completeness checks. - * Also update the framebuffer's Width and Height fields if the - * framebuffer is complete. - */ -void -_mesa_test_framebuffer_completeness(struct gl_context *ctx, - struct gl_framebuffer *fb) -{ - GLuint numImages; - GLenum intFormat = GL_NONE; /* color buffers' internal format */ - GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0; - GLint numSamples = -1; - GLint i; - GLuint j; - - assert(fb->Name != 0); - - numImages = 0; - fb->Width = 0; - fb->Height = 0; - - /* Start at -2 to more easily loop over all attachment points. - * -2: depth buffer - * -1: stencil buffer - * >=0: color buffer - */ - for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) { - struct gl_renderbuffer_attachment *att; - GLenum f; - gl_format attFormat; - - /* - * XXX for ARB_fbo, only check color buffers that are named by - * GL_READ_BUFFER and GL_DRAW_BUFFERi. - */ - - /* check for attachment completeness - */ - if (i == -2) { - att = &fb->Attachment[BUFFER_DEPTH]; - test_attachment_completeness(ctx, GL_DEPTH, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("depth attachment incomplete", -1); - return; - } - } - else if (i == -1) { - att = &fb->Attachment[BUFFER_STENCIL]; - test_attachment_completeness(ctx, GL_STENCIL, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("stencil attachment incomplete", -1); - return; - } - } - else { - att = &fb->Attachment[BUFFER_COLOR0 + i]; - test_attachment_completeness(ctx, GL_COLOR, att); - if (!att->Complete) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT; - fbo_incomplete("color attachment incomplete", i); - return; - } - } - - /* get width, height, format of the renderbuffer/texture - */ - if (att->Type == GL_TEXTURE) { - const struct gl_texture_image *texImg - = att->Texture->Image[att->CubeMapFace][att->TextureLevel]; - minWidth = MIN2(minWidth, texImg->Width); - maxWidth = MAX2(maxWidth, texImg->Width); - minHeight = MIN2(minHeight, texImg->Height); - maxHeight = MAX2(maxHeight, texImg->Height); - f = texImg->_BaseFormat; - attFormat = texImg->TexFormat; - numImages++; - if (!_mesa_is_legal_color_format(ctx, f) && - !is_legal_depth_format(ctx, f)) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - fbo_incomplete("texture attachment incomplete", -1); - return; - } - } - else if (att->Type == GL_RENDERBUFFER_EXT) { - minWidth = MIN2(minWidth, att->Renderbuffer->Width); - maxWidth = MAX2(minWidth, att->Renderbuffer->Width); - minHeight = MIN2(minHeight, att->Renderbuffer->Height); - maxHeight = MAX2(minHeight, att->Renderbuffer->Height); - f = att->Renderbuffer->InternalFormat; - attFormat = att->Renderbuffer->Format; - numImages++; - } - else { - assert(att->Type == GL_NONE); - continue; - } - - if (numSamples < 0) { - /* first buffer */ - numSamples = att->Renderbuffer->NumSamples; - } - - /* check if integer color */ - fb->_IntegerColor = _mesa_is_format_integer_color(attFormat); - - /* Error-check width, height, format, samples - */ - if (numImages == 1) { - /* save format, num samples */ - if (i >= 0) { - intFormat = f; - } - } - else { - if (!ctx->Extensions.ARB_framebuffer_object) { - /* check that width, height, format are same */ - if (minWidth != maxWidth || minHeight != maxHeight) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT; - fbo_incomplete("width or height mismatch", -1); - return; - } - /* check that all color buffer have same format */ - if (intFormat != GL_NONE && f != intFormat) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; - fbo_incomplete("format mismatch", -1); - return; - } - } - if (att->Renderbuffer && - att->Renderbuffer->NumSamples != numSamples) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE; - fbo_incomplete("inconsistant number of samples", i); - return; - } - - } - } - -#if FEATURE_GL - if (ctx->API == API_OPENGL) { - /* Check that all DrawBuffers are present */ - for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) { - if (fb->ColorDrawBuffer[j] != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT; - fbo_incomplete("missing drawbuffer", j); - return; - } - } - } - - /* Check that the ReadBuffer is present */ - if (fb->ColorReadBuffer != GL_NONE) { - const struct gl_renderbuffer_attachment *att - = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer); - assert(att); - if (att->Type == GL_NONE) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT; - fbo_incomplete("missing readbuffer", -1); - return; - } - } - } -#else - (void) j; -#endif - - if (numImages == 0) { - fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT; - fbo_incomplete("no attachments", -1); - return; - } - - /* Provisionally set status = COMPLETE ... */ - fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT; - - /* ... but the driver may say the FB is incomplete. - * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED - * if anything. - */ - if (ctx->Driver.ValidateFramebuffer) { - ctx->Driver.ValidateFramebuffer(ctx, fb); - if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - fbo_incomplete("driver marked FBO as incomplete", -1); - } - } - - if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) { - /* - * Note that if ARB_framebuffer_object is supported and the attached - * renderbuffers/textures are different sizes, the framebuffer - * width/height will be set to the smallest width/height. - */ - fb->Width = minWidth; - fb->Height = minHeight; - - /* finally, update the visual info for the framebuffer */ - _mesa_update_framebuffer_visual(ctx, fb); - } -} - - -GLboolean GLAPIENTRY -_mesa_IsRenderbufferEXT(GLuint renderbuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (renderbuffer) { - struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (rb != NULL && rb != &DummyRenderbuffer) - return GL_TRUE; - } - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer) -{ - struct gl_renderbuffer *newRb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)"); - return; - } - - /* No need to flush here since the render buffer binding has no - * effect on rendering state. - */ - - if (renderbuffer) { - newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (newRb == &DummyRenderbuffer) { - /* ID was reserved, but no real renderbuffer object made yet */ - newRb = NULL; - } - else if (!newRb && ctx->Extensions.ARB_framebuffer_object) { - /* All RB IDs must be Gen'd */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)"); - return; - } - - if (!newRb) { - /* create new renderbuffer object */ - newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer); - if (!newRb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT"); - return; - } - ASSERT(newRb->AllocStorage); - _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb); - newRb->RefCount = 1; /* referenced by hash table */ - } - } - else { - newRb = NULL; - } - - ASSERT(newRb != &DummyRenderbuffer); - - _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb); -} - - -/** - * If the given renderbuffer is anywhere attached to the framebuffer, detach - * the renderbuffer. - * This is used when a renderbuffer object is deleted. - * The spec calls for unbinding. - */ -static void -detach_renderbuffer(struct gl_context *ctx, - struct gl_framebuffer *fb, - struct gl_renderbuffer *rb) -{ - GLuint i; - for (i = 0; i < BUFFER_COUNT; i++) { - if (fb->Attachment[i].Renderbuffer == rb) { - _mesa_remove_attachment(ctx, &fb->Attachment[i]); - } - } - invalidate_framebuffer(fb); -} - - -void GLAPIENTRY -_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (renderbuffers[i] > 0) { - struct gl_renderbuffer *rb; - rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]); - if (rb) { - /* check if deleting currently bound renderbuffer object */ - if (rb == ctx->CurrentRenderbuffer) { - /* bind default */ - ASSERT(rb->RefCount >= 2); - _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0); - } - - if (ctx->DrawBuffer->Name) { - detach_renderbuffer(ctx, ctx->DrawBuffer, rb); - } - if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) { - detach_renderbuffer(ctx, ctx->ReadBuffer, rb); - } - - /* Remove from hash table immediately, to free the ID. - * But the object will not be freed until it's no longer - * referenced anywhere else. - */ - _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]); - - if (rb != &DummyRenderbuffer) { - /* no longer referenced by hash table */ - _mesa_reference_renderbuffer(&rb, NULL); - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)"); - return; - } - - if (!renderbuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n); - - for (i = 0; i < n; i++) { - GLuint name = first + i; - renderbuffers[i] = name; - /* insert dummy placeholder into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } -} - - -/** - * Given an internal format token for a render buffer, return the - * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, - * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE, - * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc). - * - * This is similar to _mesa_base_tex_format() but the set of valid - * internal formats is different. - * - * Note that even if a format is determined to be legal here, validation - * of the FBO may fail if the format is not supported by the driver/GPU. - * - * \param internalFormat as passed to glRenderbufferStorage() - * \return the base internal format, or 0 if internalFormat is illegal - */ -GLenum -_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat) -{ - /* - * Notes: some formats such as alpha, luminance, etc. were added - * with GL_ARB_framebuffer_object. - */ - switch (internalFormat) { - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_INTENSITY12: - case GL_INTENSITY16: - return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; - case GL_RGB: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - case GL_SRGB8_EXT: - return GL_RGB; - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - case GL_RGBA16_SNORM: - case GL_SRGB8_ALPHA8_EXT: - return GL_RGBA; - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - return GL_STENCIL_INDEX; - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - if (ctx->Extensions.EXT_packed_depth_stencil) - return GL_DEPTH_STENCIL_EXT; - else - return 0; - case GL_RED: - case GL_R8: - case GL_R16: - return ctx->Extensions.ARB_texture_rg ? GL_RED : 0; - case GL_RG: - case GL_RG8: - case GL_RG16: - return ctx->Extensions.ARB_texture_rg ? GL_RG : 0; - /* XXX add floating point and integer formats eventually */ - default: - return 0; - } -} - - -/** - * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk(). - */ -static void -invalidate_rb(GLuint key, void *data, void *userData) -{ - struct gl_framebuffer *fb = (struct gl_framebuffer *) data; - struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData; - - /* If this is a user-created FBO */ - if (fb->Name) { - GLuint i; - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - if (att->Type == GL_RENDERBUFFER && - att->Renderbuffer == rb) { - /* Mark fb status as indeterminate to force re-validation */ - fb->_Status = 0; - return; - } - } - } -} - - -/** sentinal value, see below */ -#define NO_SAMPLES 1000 - - -/** - * Helper function used by _mesa_RenderbufferStorageEXT() and - * _mesa_RenderbufferStorageMultisample(). - * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT(). - */ -static void -renderbuffer_storage(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height, GLsizei samples) -{ - const char *func = samples == NO_SAMPLES ? - "glRenderbufferStorage" : "RenderbufferStorageMultisample"; - struct gl_renderbuffer *rb; - GLenum baseFormat; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func); - return; - } - - baseFormat = _mesa_base_fbo_format(ctx, internalFormat); - if (baseFormat == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func); - return; - } - - if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func); - return; - } - - if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func); - return; - } - - if (samples == NO_SAMPLES) { - /* NumSamples == 0 indicates non-multisampling */ - samples = 0; - } - else if (samples > (GLsizei) ctx->Const.MaxSamples) { - /* note: driver may choose to use more samples than what's requested */ - _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (rb->InternalFormat == internalFormat && - rb->Width == (GLuint) width && - rb->Height == (GLuint) height) { - /* no change in allocation needed */ - return; - } - - /* These MUST get set by the AllocStorage func */ - rb->Format = MESA_FORMAT_NONE; - rb->NumSamples = samples; - - /* Now allocate the storage */ - ASSERT(rb->AllocStorage); - if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) { - /* No error - check/set fields now */ - assert(rb->Format != MESA_FORMAT_NONE); - assert(rb->Width == (GLuint) width); - assert(rb->Height == (GLuint) height); - rb->InternalFormat = internalFormat; - rb->_BaseFormat = baseFormat; - assert(rb->_BaseFormat != 0); - } - else { - /* Probably ran out of memory - clear the fields */ - rb->Width = 0; - rb->Height = 0; - rb->Format = MESA_FORMAT_NONE; - rb->InternalFormat = GL_NONE; - rb->_BaseFormat = GL_NONE; - rb->NumSamples = 0; - } - - /* Invalidate the framebuffers the renderbuffer is attached in. */ - if (rb->AttachedAnytime) { - _mesa_HashWalk(ctx->Shared->FrameBuffers, invalidate_rb, rb); - } -} - - -#if FEATURE_OES_EGL_image -void GLAPIENTRY -_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image) -{ - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.OES_EGL_image) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glEGLImageTargetRenderbufferStorageOES(unsupported)"); - return; - } - - if (target != GL_RENDERBUFFER) { - _mesa_error(ctx, GL_INVALID_ENUM, - "EGLImageTargetRenderbufferStorageOES"); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "EGLImageTargetRenderbufferStorageOES"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image); -} -#endif - - -/** - * Helper function for _mesa_GetRenderbufferParameterivEXT() and - * _mesa_GetFramebufferAttachmentParameterivEXT() - * We have to be careful to respect the base format. For example, if a - * renderbuffer/texture was created with internalFormat=GL_RGB but the - * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE - * we need to return zero. - */ -static GLint -get_component_bits(GLenum pname, GLenum baseFormat, gl_format format) -{ - switch (pname) { - case GL_RENDERBUFFER_RED_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA || - baseFormat == GL_RG || baseFormat == GL_RED) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: - if (baseFormat == GL_RGB || baseFormat == GL_RGBA) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: - if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA || - baseFormat == GL_LUMINANCE_ALPHA) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: - if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL) - return _mesa_get_format_bits(format, pname); - else - return 0; - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: - if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL) - return _mesa_get_format_bits(format, pname); - else - return 0; - default: - return 0; - } -} - - - -void GLAPIENTRY -_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height) -{ - /* GL_ARB_fbo says calling this function is equivalent to calling - * glRenderbufferStorageMultisample() with samples=0. We pass in - * a token value here just for error reporting purposes. - */ - renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES); -} - - -void GLAPIENTRY -_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples, - GLenum internalFormat, - GLsizei width, GLsizei height) -{ - renderbuffer_storage(target, internalFormat, width, height, samples); -} - - -/** - * OpenGL ES version of glRenderBufferStorage. - */ -void GLAPIENTRY -_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat, - GLsizei width, GLsizei height) -{ - switch (internalFormat) { - case GL_RGB565: - /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */ - /* choose a closest format */ - internalFormat = GL_RGB5; - break; - default: - break; - } - - renderbuffer_storage(target, internalFormat, width, height, 0); -} - - -void GLAPIENTRY -_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params) -{ - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (target != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } - - rb = ctx->CurrentRenderbuffer; - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetRenderbufferParameterivEXT"); - return; - } - - /* No need to flush here since we're just quering state which is - * not effected by rendering. - */ - - switch (pname) { - case GL_RENDERBUFFER_WIDTH_EXT: - *params = rb->Width; - return; - case GL_RENDERBUFFER_HEIGHT_EXT: - *params = rb->Height; - return; - case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT: - *params = rb->InternalFormat; - return; - case GL_RENDERBUFFER_RED_SIZE_EXT: - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - *params = get_component_bits(pname, rb->_BaseFormat, rb->Format); - break; - case GL_RENDERBUFFER_SAMPLES: - if (ctx->Extensions.ARB_framebuffer_object) { - *params = rb->NumSamples; - break; - } - /* fallthrough */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetRenderbufferParameterivEXT(target)"); - return; - } -} - - -GLboolean GLAPIENTRY -_mesa_IsFramebufferEXT(GLuint framebuffer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - if (framebuffer) { - struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer); - if (rb != NULL && rb != &DummyFramebuffer) - return GL_TRUE; - } - return GL_FALSE; -} - - -/** - * Check if any of the attachments of the given framebuffer are textures - * (render to texture). Call ctx->Driver.RenderTexture() for such - * attachments. - */ -static void -check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - GLuint i; - ASSERT(ctx->Driver.RenderTexture); - - if (fb->Name == 0) - return; /* can't render to texture with winsys framebuffers */ - - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - struct gl_texture_object *texObj = att->Texture; - if (texObj - && texObj->Image[att->CubeMapFace][att->TextureLevel]) { - ctx->Driver.RenderTexture(ctx, fb, att); - } - } -} - - -/** - * Examine all the framebuffer's attachments to see if any are textures. - * If so, call ctx->Driver.FinishRenderTexture() for each texture to - * notify the device driver that the texture image may have changed. - */ -static void -check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb) -{ - if (fb->Name == 0) - return; /* can't render to texture with winsys framebuffers */ - - if (ctx->Driver.FinishRenderTexture) { - GLuint i; - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - if (att->Texture && att->Renderbuffer) { - ctx->Driver.FinishRenderTexture(ctx, att); - } - } - } -} - - -void GLAPIENTRY -_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer) -{ - struct gl_framebuffer *newDrawFb, *newReadFb; - struct gl_framebuffer *oldDrawFb, *oldReadFb; - GLboolean bindReadBuf, bindDrawBuf; - GET_CURRENT_CONTEXT(ctx); - -#ifdef DEBUG - if (ctx->Extensions.ARB_framebuffer_object) { - ASSERT(ctx->Extensions.EXT_framebuffer_object); - ASSERT(ctx->Extensions.EXT_framebuffer_blit); - } -#endif - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!ctx->Extensions.EXT_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindFramebufferEXT(unsupported)"); - return; - } - - switch (target) { -#if FEATURE_EXT_framebuffer_blit - case GL_DRAW_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - bindDrawBuf = GL_TRUE; - bindReadBuf = GL_FALSE; - break; - case GL_READ_FRAMEBUFFER_EXT: - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - bindDrawBuf = GL_FALSE; - bindReadBuf = GL_TRUE; - break; -#endif - case GL_FRAMEBUFFER_EXT: - bindDrawBuf = GL_TRUE; - bindReadBuf = GL_TRUE; - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)"); - return; - } - - if (framebuffer) { - /* Binding a user-created framebuffer object */ - newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer); - if (newDrawFb == &DummyFramebuffer) { - /* ID was reserved, but no real framebuffer object made yet */ - newDrawFb = NULL; - } - else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) { - /* All FBO IDs must be Gen'd */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)"); - return; - } - - if (!newDrawFb) { - /* create new framebuffer object */ - newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer); - if (!newDrawFb) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT"); - return; - } - _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb); - } - newReadFb = newDrawFb; - } - else { - /* Binding the window system framebuffer (which was originally set - * with MakeCurrent). - */ - newDrawFb = ctx->WinSysDrawBuffer; - newReadFb = ctx->WinSysReadBuffer; - } - - ASSERT(newDrawFb); - ASSERT(newDrawFb != &DummyFramebuffer); - - /* save pointers to current/old framebuffers */ - oldDrawFb = ctx->DrawBuffer; - oldReadFb = ctx->ReadBuffer; - - /* check if really changing bindings */ - if (oldDrawFb == newDrawFb) - bindDrawBuf = GL_FALSE; - if (oldReadFb == newReadFb) - bindReadBuf = GL_FALSE; - - /* - * OK, now bind the new Draw/Read framebuffers, if they're changing. - * - * We also check if we're beginning and/or ending render-to-texture. - * When a framebuffer with texture attachments is unbound, call - * ctx->Driver.FinishRenderTexture(). - * When a framebuffer with texture attachments is bound, call - * ctx->Driver.RenderTexture(). - * - * Note that if the ReadBuffer has texture attachments we don't consider - * that a render-to-texture case. - */ - if (bindReadBuf) { - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - /* check if old readbuffer was render-to-texture */ - check_end_texture_render(ctx, oldReadFb); - - _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb); - } - - if (bindDrawBuf) { - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - /* check if old read/draw buffers were render-to-texture */ - if (!bindReadBuf) - check_end_texture_render(ctx, oldReadFb); - - if (oldDrawFb != oldReadFb) - check_end_texture_render(ctx, oldDrawFb); - - /* check if newly bound framebuffer has any texture attachments */ - check_begin_texture_render(ctx, newDrawFb); - - _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb); - } - - if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) { - ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb); - } -} - - -void GLAPIENTRY -_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers) -{ - GLint i; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - for (i = 0; i < n; i++) { - if (framebuffers[i] > 0) { - struct gl_framebuffer *fb; - fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]); - if (fb) { - ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]); - - /* check if deleting currently bound framebuffer object */ - if (ctx->Extensions.EXT_framebuffer_blit) { - /* separate draw/read binding points */ - if (fb == ctx->DrawBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0); - } - if (fb == ctx->ReadBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0); - } - } - else { - /* only one binding point for read/draw buffers */ - if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) { - /* bind default */ - ASSERT(fb->RefCount >= 2); - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); - } - } - - /* remove from hash table immediately, to free the ID */ - _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]); - - if (fb != &DummyFramebuffer) { - /* But the object will not be freed until it's no longer - * bound in any context. - */ - _mesa_reference_framebuffer(&fb, NULL); - } - } - } - } -} - - -void GLAPIENTRY -_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)"); - return; - } - - if (!framebuffers) - return; - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n); - - for (i = 0; i < n; i++) { - GLuint name = first + i; - framebuffers[i] = name; - /* insert dummy placeholder into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } -} - - - -GLenum GLAPIENTRY -_mesa_CheckFramebufferStatusEXT(GLenum target) -{ - struct gl_framebuffer *buffer; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); - - buffer = get_framebuffer_target(ctx, target); - if (!buffer) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)"); - return 0; - } - - if (buffer->Name == 0) { - /* The window system / default framebuffer is always complete */ - return GL_FRAMEBUFFER_COMPLETE_EXT; - } - - /* No need to flush here */ - - if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) { - _mesa_test_framebuffer_completeness(ctx, buffer); - } - - return buffer->_Status; -} - - - -/** - * Common code called by glFramebufferTexture1D/2D/3DEXT(). - */ -static void -framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, - GLenum attachment, GLenum textarget, GLuint texture, - GLint level, GLint zoffset) -{ - struct gl_renderbuffer_attachment *att; - struct gl_texture_object *texObj = NULL; - struct gl_framebuffer *fb; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - fb = get_framebuffer_target(ctx, target); - if (!fb) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture%sEXT(target=0x%x)", caller, target); - return; - } - - /* check framebuffer binding */ - if (fb->Name == 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT", caller); - return; - } - - - /* The textarget, level, and zoffset parameters are only validated if - * texture is non-zero. - */ - if (texture) { - GLboolean err = GL_TRUE; - - texObj = _mesa_lookup_texture(ctx, texture); - if (texObj != NULL) { - if (textarget == 0) { - /* XXX what's the purpose of this? */ - err = (texObj->Target != GL_TEXTURE_3D) && - (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) && - (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT); - } - else { - err = (texObj->Target == GL_TEXTURE_CUBE_MAP) - ? !IS_CUBE_FACE(textarget) - : (texObj->Target != textarget); - } - } - else { - /* can't render to a non-existant texture */ - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT(non existant texture)", - caller); - return; - } - - if (err) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture%sEXT(texture target mismatch)", - caller); - return; - } - - if (texObj->Target == GL_TEXTURE_3D) { - const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); - if (zoffset < 0 || zoffset >= maxSize) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(zoffset)", caller); - return; - } - } - else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) || - (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) { - if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(layer)", caller); - return; - } - } - - if ((level < 0) || - (level >= _mesa_max_texture_levels(ctx, texObj->Target))) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferTexture%sEXT(level)", caller); - return; - } - } - - att = _mesa_get_attachment(ctx, fb, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture%sEXT(attachment)", caller); - return; - } - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - _glthread_LOCK_MUTEX(fb->Mutex); - if (texObj) { - _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget, - level, zoffset); - /* Set the render-to-texture flag. We'll check this flag in - * glTexImage() and friends to determine if we need to revalidate - * any FBOs that might be rendering into this texture. - * This flag never gets cleared since it's non-trivial to determine - * when all FBOs might be done rendering to this texture. That's OK - * though since it's uncommon to render to a texture then repeatedly - * call glTexImage() to change images in the texture. - */ - texObj->_RenderToTexture = GL_TRUE; - } - else { - _mesa_remove_attachment(ctx, att); - } - - invalidate_framebuffer(fb); - - _glthread_UNLOCK_MUTEX(fb->Mutex); -} - - - -void GLAPIENTRY -_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && (textarget != GL_TEXTURE_1D)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture1DEXT(textarget)"); - return; - } - - framebuffer_texture(ctx, "1D", target, attachment, textarget, texture, - level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && - (textarget != GL_TEXTURE_2D) && - (textarget != GL_TEXTURE_RECTANGLE_ARB) && - (!IS_CUBE_FACE(textarget))) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTexture2DEXT(textarget=0x%x)", textarget); - return; - } - - framebuffer_texture(ctx, "2D", target, attachment, textarget, texture, - level, 0); -} - - -void GLAPIENTRY -_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, - GLint level, GLint zoffset) -{ - GET_CURRENT_CONTEXT(ctx); - - if ((texture != 0) && (textarget != GL_TEXTURE_3D)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferTexture3DEXT(textarget)"); - return; - } - - framebuffer_texture(ctx, "3D", target, attachment, textarget, texture, - level, zoffset); -} - - -void GLAPIENTRY -_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment, - GLuint texture, GLint level, GLint layer) -{ - GET_CURRENT_CONTEXT(ctx); - - framebuffer_texture(ctx, "Layer", target, attachment, 0, texture, - level, layer); -} - - -void GLAPIENTRY -_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment, - GLenum renderbufferTarget, - GLuint renderbuffer) -{ - struct gl_renderbuffer_attachment *att; - struct gl_framebuffer *fb; - struct gl_renderbuffer *rb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - fb = get_framebuffer_target(ctx, target); - if (!fb) { - _mesa_error(ctx, GL_INVALID_ENUM, "glFramebufferRenderbufferEXT(target)"); - return; - } - - if (renderbufferTarget != GL_RENDERBUFFER_EXT) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(renderbufferTarget)"); - return; - } - - if (fb->Name == 0) { - /* Can't attach new renderbuffers to a window system framebuffer */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT"); - return; - } - - att = _mesa_get_attachment(ctx, fb, attachment); - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glFramebufferRenderbufferEXT(invalid attachment %s)", - _mesa_lookup_enum_by_nr(attachment)); - return; - } - - if (renderbuffer) { - rb = _mesa_lookup_renderbuffer(ctx, renderbuffer); - if (!rb) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferRenderbufferEXT(non-existant" - " renderbuffer %u)", renderbuffer); - return; - } - else if (rb == &DummyRenderbuffer) { - /* This is what NVIDIA does */ - _mesa_error(ctx, GL_INVALID_VALUE, - "glFramebufferRenderbufferEXT(renderbuffer %u)", - renderbuffer); - return; - } - } - else { - /* remove renderbuffer attachment */ - rb = NULL; - } - - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT && - rb && rb->Format != MESA_FORMAT_NONE) { - /* make sure the renderbuffer is a depth/stencil format */ - const GLenum baseFormat = _mesa_get_format_base_format(rb->Format); - if (baseFormat != GL_DEPTH_STENCIL) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferRenderbufferEXT(renderbuffer" - " is not DEPTH_STENCIL format)"); - return; - } - } - - - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - assert(ctx->Driver.FramebufferRenderbuffer); - ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb); - - /* Some subsequent GL commands may depend on the framebuffer's visual - * after the binding is updated. Update visual info now. - */ - _mesa_update_framebuffer_visual(ctx, fb); -} - - -void GLAPIENTRY -_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment, - GLenum pname, GLint *params) -{ - const struct gl_renderbuffer_attachment *att; - struct gl_framebuffer *buffer; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - buffer = get_framebuffer_target(ctx, target); - if (!buffer) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(target)"); - return; - } - - if (buffer->Name == 0) { - /* the default / window-system FBO */ - att = _mesa_get_fb0_attachment(ctx, buffer, attachment); - } - else { - /* user-created framebuffer FBO */ - att = _mesa_get_attachment(ctx, buffer, attachment); - } - - if (att == NULL) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(attachment)"); - return; - } - - if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) { - /* the depth and stencil attachments must point to the same buffer */ - const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt; - depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT); - stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT); - if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL" - " attachments differ)"); - return; - } - } - - /* No need to flush here */ - - switch (pname) { - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT: - *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type; - return; - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT: - if (att->Type == GL_RENDERBUFFER_EXT) { - *params = att->Renderbuffer->Name; - } - else if (att->Type == GL_TEXTURE) { - *params = att->Texture->Name; - } - else { - assert(att->Type == GL_NONE); - *params = 0; - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT: - if (att->Type == GL_TEXTURE) { - *params = att->TextureLevel; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT: - if (att->Type == GL_TEXTURE) { - if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) { - *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace; - } - else { - *params = 0; - } - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT: - if (att->Type == GL_TEXTURE) { - if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) { - *params = att->Zoffset; - } - else { - *params = 0; - } - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - else { - if (ctx->Extensions.EXT_framebuffer_sRGB && ctx->Const.sRGBCapable) { - *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format); - } - else { - /* According to ARB_framebuffer_sRGB, we should return LINEAR - * if the sRGB conversion is unsupported. */ - *params = GL_LINEAR; - } - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - return; - } - else { - gl_format format = att->Renderbuffer->Format; - if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) { - /* special cases */ - *params = GL_INDEX; - } - else { - *params = _mesa_get_format_datatype(format); - } - } - return; - case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: - case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: - if (!ctx->Extensions.ARB_framebuffer_object) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - } - else if (att->Texture) { - const struct gl_texture_image *texImage = - _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target, - att->TextureLevel); - if (texImage) { - *params = get_component_bits(pname, texImage->_BaseFormat, - texImage->TexFormat); - } - else { - *params = 0; - } - } - else if (att->Renderbuffer) { - *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat, - att->Renderbuffer->Format); - } - else { - *params = 0; - } - return; - default: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetFramebufferAttachmentParameterivEXT(pname)"); - return; - } -} - - -void GLAPIENTRY -_mesa_GenerateMipmapEXT(GLenum target) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - switch (target) { - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_3D: - case GL_TEXTURE_CUBE_MAP: - /* OK, legal value */ - break; - default: - /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */ - _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)"); - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - if (texObj->BaseLevel >= texObj->MaxLevel) { - /* nothing to do */ - return; - } - - if (texObj->Target == GL_TEXTURE_CUBE_MAP && - !_mesa_cube_complete(texObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGenerateMipmap(incomplete cube map)"); - return; - } - - _mesa_lock_texture(ctx, texObj); - if (target == GL_TEXTURE_CUBE_MAP) { - GLuint face; - for (face = 0; face < 6; face++) - ctx->Driver.GenerateMipmap(ctx, - GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face, - texObj); - } - else { - ctx->Driver.GenerateMipmap(ctx, target, texObj); - } - _mesa_unlock_texture(ctx, texObj); -} - - -#if FEATURE_EXT_framebuffer_blit - -static const struct gl_renderbuffer_attachment * -find_attachment(const struct gl_framebuffer *fb, - const struct gl_renderbuffer *rb) -{ - GLuint i; - for (i = 0; i < Elements(fb->Attachment); i++) { - if (fb->Attachment[i].Renderbuffer == rb) - return &fb->Attachment[i]; - } - return NULL; -} - - - -/** - * Blit rectangular region, optionally from one framebuffer to another. - * - * Note, if the src buffer is multisampled and the dest is not, this is - * when the samples must be resolved to a single color. - */ -void GLAPIENTRY -_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) -{ - const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT | - GL_DEPTH_BUFFER_BIT | - GL_STENCIL_BUFFER_BIT); - const struct gl_framebuffer *readFb, *drawFb; - const struct gl_renderbuffer *colorReadRb, *colorDrawRb; - GET_CURRENT_CONTEXT(ctx); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - FLUSH_VERTICES(ctx, _NEW_BUFFERS); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, - "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n", - srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, - mask, _mesa_lookup_enum_by_nr(filter)); - - if (ctx->NewState) { - _mesa_update_state(ctx); - } - - readFb = ctx->ReadBuffer; - drawFb = ctx->DrawBuffer; - - if (!readFb || !drawFb) { - /* This will normally never happen but someday we may want to - * support MakeCurrent() with no drawables. - */ - return; - } - - /* check for complete framebuffers */ - if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT || - readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "glBlitFramebufferEXT(incomplete draw/read buffers)"); - return; - } - - if (filter != GL_NEAREST && filter != GL_LINEAR) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)"); - return; - } - - if (mask & ~legalMaskBits) { - _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)"); - return; - } - - /* depth/stencil must be blitted with nearest filtering */ - if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) - && filter != GL_NEAREST) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter"); - return; - } - - /* get color read/draw renderbuffers */ - if (mask & GL_COLOR_BUFFER_BIT) { - colorReadRb = readFb->_ColorReadBuffer; - colorDrawRb = drawFb->_ColorDrawBuffers[0]; - } - else { - colorReadRb = colorDrawRb = NULL; - } - - if (mask & GL_STENCIL_BUFFER_BIT) { - struct gl_renderbuffer *readRb = readFb->_StencilBuffer; - struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer; - if (!readRb || - !drawRb || - _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) != - _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(stencil buffer size mismatch"); - return; - } - } - - if (mask & GL_DEPTH_BUFFER_BIT) { - struct gl_renderbuffer *readRb = readFb->_DepthBuffer; - struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer; - if (!readRb || - !drawRb || - _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) != - _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(depth buffer size mismatch"); - return; - } - } - - if (readFb->Visual.samples > 0 && - drawFb->Visual.samples > 0 && - readFb->Visual.samples != drawFb->Visual.samples) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(mismatched samples"); - return; - } - - /* extra checks for multisample copies... */ - if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) { - /* src and dest region sizes must be the same */ - if (srcX1 - srcX0 != dstX1 - dstX0 || - srcY1 - srcY0 != dstY1 - dstY0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(bad src/dst multisample region sizes"); - return; - } - - /* color formats must match */ - if (colorReadRb && - colorDrawRb && - colorReadRb->Format != colorDrawRb->Format) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBlitFramebufferEXT(bad src/dst multisample pixel formats"); - return; - } - } - - if (!ctx->Extensions.EXT_framebuffer_blit) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT"); - return; - } - - /* Debug code */ - if (DEBUG_BLIT) { - printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d," - " 0x%x, 0x%x)\n", - srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, - mask, filter); - if (colorReadRb) { - const struct gl_renderbuffer_attachment *att; - - att = find_attachment(readFb, colorReadRb); - printf(" Src FBO %u RB %u (%dx%d) ", - readFb->Name, colorReadRb->Name, - colorReadRb->Width, colorReadRb->Height); - if (att && att->Texture) { - printf("Tex %u tgt 0x%x level %u face %u", - att->Texture->Name, - att->Texture->Target, - att->TextureLevel, - att->CubeMapFace); - } - printf("\n"); - - att = find_attachment(drawFb, colorDrawRb); - printf(" Dst FBO %u RB %u (%dx%d) ", - drawFb->Name, colorDrawRb->Name, - colorDrawRb->Width, colorDrawRb->Height); - if (att && att->Texture) { - printf("Tex %u tgt 0x%x level %u face %u", - att->Texture->Name, - att->Texture->Target, - att->TextureLevel, - att->CubeMapFace); - } - printf("\n"); - } - } - - ASSERT(ctx->Driver.BlitFramebuffer); - ctx->Driver.BlitFramebuffer(ctx, - srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, - mask, filter); -} -#endif /* FEATURE_EXT_framebuffer_blit */ - -#if FEATURE_ARB_geometry_shader4 -void GLAPIENTRY -_mesa_FramebufferTextureARB(GLenum target, GLenum attachment, - GLuint texture, GLint level) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTextureARB " - "not implemented!"); -} - -void GLAPIENTRY -_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment, - GLuint texture, GLint level, GLenum face) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_error(ctx, GL_INVALID_OPERATION, - "glFramebufferTextureFaceARB " - "not implemented!"); -} -#endif /* FEATURE_ARB_geometry_shader4 */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * GL_EXT/ARB_framebuffer_object extensions
+ *
+ * Authors:
+ * Brian Paul
+ */
+
+
+#include "buffers.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "formats.h"
+#include "framebuffer.h"
+#include "hash.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "renderbuffer.h"
+#include "state.h"
+#include "teximage.h"
+#include "texobj.h"
+
+
+/** Set this to 1 to help debug FBO incompleteness problems */
+#define DEBUG_FBO 0
+
+/** Set this to 1 to debug/log glBlitFramebuffer() calls */
+#define DEBUG_BLIT 0
+
+
+/**
+ * Notes:
+ *
+ * None of the GL_EXT_framebuffer_object functions are compiled into
+ * display lists.
+ */
+
+
+
+/*
+ * When glGenRender/FramebuffersEXT() is called we insert pointers to
+ * these placeholder objects into the hash table.
+ * Later, when the object ID is first bound, we replace the placeholder
+ * with the real frame/renderbuffer.
+ */
+static struct gl_framebuffer DummyFramebuffer;
+static struct gl_renderbuffer DummyRenderbuffer;
+
+/* We bind this framebuffer when applications pass a NULL
+ * drawable/surface in make current. */
+static struct gl_framebuffer IncompleteFramebuffer;
+
+
+#define IS_CUBE_FACE(TARGET) \
+ ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
+ (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
+
+
+static void
+delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+{
+ /* no op */
+}
+
+static void
+delete_dummy_framebuffer(struct gl_framebuffer *fb)
+{
+ /* no op */
+}
+
+
+void
+_mesa_init_fbobjects(struct gl_context *ctx)
+{
+ _glthread_INIT_MUTEX(DummyFramebuffer.Mutex);
+ _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex);
+ _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex);
+ DummyFramebuffer.Delete = delete_dummy_framebuffer;
+ DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
+ IncompleteFramebuffer.Delete = delete_dummy_framebuffer;
+}
+
+struct gl_framebuffer *
+_mesa_get_incomplete_framebuffer(void)
+{
+ return &IncompleteFramebuffer;
+}
+
+/**
+ * Helper routine for getting a gl_renderbuffer.
+ */
+struct gl_renderbuffer *
+_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id)
+{
+ struct gl_renderbuffer *rb;
+
+ if (id == 0)
+ return NULL;
+
+ rb = (struct gl_renderbuffer *)
+ _mesa_HashLookup(ctx->Shared->RenderBuffers, id);
+ return rb;
+}
+
+
+/**
+ * Helper routine for getting a gl_framebuffer.
+ */
+struct gl_framebuffer *
+_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id)
+{
+ struct gl_framebuffer *fb;
+
+ if (id == 0)
+ return NULL;
+
+ fb = (struct gl_framebuffer *)
+ _mesa_HashLookup(ctx->Shared->FrameBuffers, id);
+ return fb;
+}
+
+
+/**
+ * Mark the given framebuffer as invalid. This will force the
+ * test for framebuffer completeness to be done before the framebuffer
+ * is used.
+ */
+static void
+invalidate_framebuffer(struct gl_framebuffer *fb)
+{
+ fb->_Status = 0; /* "indeterminate" */
+}
+
+
+/**
+ * Return the gl_framebuffer object which corresponds to the given
+ * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
+ * Check support for GL_EXT_framebuffer_blit to determine if certain
+ * targets are legal.
+ * \return gl_framebuffer pointer or NULL if target is illegal
+ */
+static struct gl_framebuffer *
+get_framebuffer_target(struct gl_context *ctx, GLenum target)
+{
+ switch (target) {
+ case GL_DRAW_FRAMEBUFFER:
+ return ctx->Extensions.EXT_framebuffer_blit ? ctx->DrawBuffer : NULL;
+ case GL_READ_FRAMEBUFFER:
+ return ctx->Extensions.EXT_framebuffer_blit ? ctx->ReadBuffer : NULL;
+ case GL_FRAMEBUFFER_EXT:
+ return ctx->DrawBuffer;
+ default:
+ return NULL;
+ }
+}
+
+
+/**
+ * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
+ * gl_renderbuffer_attachment object.
+ * This function is only used for user-created FB objects, not the
+ * default / window-system FB object.
+ * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
+ * the depth buffer attachment point.
+ */
+struct gl_renderbuffer_attachment *
+_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
+{
+ GLuint i;
+
+ assert(fb->Name > 0);
+
+ switch (attachment) {
+ case GL_COLOR_ATTACHMENT0_EXT:
+ case GL_COLOR_ATTACHMENT1_EXT:
+ case GL_COLOR_ATTACHMENT2_EXT:
+ case GL_COLOR_ATTACHMENT3_EXT:
+ case GL_COLOR_ATTACHMENT4_EXT:
+ case GL_COLOR_ATTACHMENT5_EXT:
+ case GL_COLOR_ATTACHMENT6_EXT:
+ case GL_COLOR_ATTACHMENT7_EXT:
+ case GL_COLOR_ATTACHMENT8_EXT:
+ case GL_COLOR_ATTACHMENT9_EXT:
+ case GL_COLOR_ATTACHMENT10_EXT:
+ case GL_COLOR_ATTACHMENT11_EXT:
+ case GL_COLOR_ATTACHMENT12_EXT:
+ case GL_COLOR_ATTACHMENT13_EXT:
+ case GL_COLOR_ATTACHMENT14_EXT:
+ case GL_COLOR_ATTACHMENT15_EXT:
+ i = attachment - GL_COLOR_ATTACHMENT0_EXT;
+ if (i >= ctx->Const.MaxColorAttachments) {
+ return NULL;
+ }
+ return &fb->Attachment[BUFFER_COLOR0 + i];
+ case GL_DEPTH_STENCIL_ATTACHMENT:
+ /* fall-through */
+ case GL_DEPTH_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_DEPTH_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_DEPTH];
+ case GL_STENCIL_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_STENCIL_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_STENCIL];
+ default:
+ return NULL;
+ }
+}
+
+
+/**
+ * As above, but only used for getting attachments of the default /
+ * window-system framebuffer (not user-created framebuffer objects).
+ */
+static struct gl_renderbuffer_attachment *
+_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
+{
+ assert(fb->Name == 0);
+
+ switch (attachment) {
+ case GL_FRONT_LEFT:
+ return &fb->Attachment[BUFFER_FRONT_LEFT];
+ case GL_FRONT_RIGHT:
+ return &fb->Attachment[BUFFER_FRONT_RIGHT];
+ case GL_BACK_LEFT:
+ return &fb->Attachment[BUFFER_BACK_LEFT];
+ case GL_BACK_RIGHT:
+ return &fb->Attachment[BUFFER_BACK_RIGHT];
+ case GL_AUX0:
+ if (fb->Visual.numAuxBuffers == 1) {
+ return &fb->Attachment[BUFFER_AUX0];
+ }
+ return NULL;
+ case GL_DEPTH_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_DEPTH_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_DEPTH];
+ case GL_STENCIL_BUFFER:
+ /* fall-through / new in GL 3.0 */
+ case GL_STENCIL_ATTACHMENT_EXT:
+ return &fb->Attachment[BUFFER_STENCIL];
+ default:
+ return NULL;
+ }
+}
+
+
+
+/**
+ * Remove any texture or renderbuffer attached to the given attachment
+ * point. Update reference counts, etc.
+ */
+void
+_mesa_remove_attachment(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att)
+{
+ if (att->Type == GL_TEXTURE) {
+ ASSERT(att->Texture);
+ if (ctx->Driver.FinishRenderTexture) {
+ /* tell driver that we're done rendering to this texture. */
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
+ ASSERT(!att->Texture);
+ }
+ if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
+ ASSERT(!att->Texture);
+ _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
+ ASSERT(!att->Renderbuffer);
+ }
+ att->Type = GL_NONE;
+ att->Complete = GL_TRUE;
+}
+
+
+/**
+ * Bind a texture object to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_texture_attachment(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_texture_object *texObj,
+ GLenum texTarget, GLuint level, GLuint zoffset)
+{
+ if (att->Texture == texObj) {
+ /* re-attaching same texture */
+ ASSERT(att->Type == GL_TEXTURE);
+ if (ctx->Driver.FinishRenderTexture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ else {
+ /* new attachment */
+ if (ctx->Driver.FinishRenderTexture && att->Texture)
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ _mesa_remove_attachment(ctx, att);
+ att->Type = GL_TEXTURE;
+ assert(!att->Texture);
+ _mesa_reference_texobj(&att->Texture, texObj);
+ }
+
+ /* always update these fields */
+ att->TextureLevel = level;
+ att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
+ att->Zoffset = zoffset;
+ att->Complete = GL_FALSE;
+
+ if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
+
+ invalidate_framebuffer(fb);
+}
+
+
+/**
+ * Bind a renderbuffer to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_renderbuffer_attachment(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att,
+ struct gl_renderbuffer *rb)
+{
+ /* XXX check if re-doing same attachment, exit early */
+ _mesa_remove_attachment(ctx, att);
+ att->Type = GL_RENDERBUFFER_EXT;
+ att->Texture = NULL; /* just to be safe */
+ att->Complete = GL_FALSE;
+ _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+}
+
+
+/**
+ * Fallback for ctx->Driver.FramebufferRenderbuffer()
+ * Attach a renderbuffer object to a framebuffer object.
+ */
+void
+_mesa_framebuffer_renderbuffer(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ GLenum attachment, struct gl_renderbuffer *rb)
+{
+ struct gl_renderbuffer_attachment *att;
+
+ _glthread_LOCK_MUTEX(fb->Mutex);
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ ASSERT(att);
+ if (rb) {
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* do stencil attachment here (depth already done above) */
+ att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+ assert(att);
+ _mesa_set_renderbuffer_attachment(ctx, att, rb);
+ }
+ rb->AttachedAnytime = GL_TRUE;
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+
+ invalidate_framebuffer(fb);
+
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+/**
+ * Fallback for ctx->Driver.ValidateFramebuffer()
+ * Check if the renderbuffer's formats are supported by the software
+ * renderer.
+ * Drivers should probably override this.
+ */
+void
+_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ gl_buffer_index buf;
+ for (buf = 0; buf < BUFFER_COUNT; buf++) {
+ const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer;
+ if (rb) {
+ switch (rb->_BaseFormat) {
+ case GL_ALPHA:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE:
+ case GL_INTENSITY:
+ case GL_RED:
+ case GL_RG:
+ fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
+ return;
+ default:
+ /* render buffer format is supported by software rendering */
+ ;
+ }
+ }
+ }
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+att_incomplete(const char *msg)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
+#else
+ (void) msg;
+#endif
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+fbo_incomplete(const char *msg, int index)
+{
+#if DEBUG_FBO
+ _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
+#else
+ (void) msg;
+ (void) index;
+#endif
+}
+
+
+/**
+ * Is the given base format a legal format for a color renderbuffer?
+ */
+GLboolean
+_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+ switch (baseFormat) {
+ case GL_RGB:
+ case GL_RGBA:
+ return GL_TRUE;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ case GL_ALPHA:
+ return ctx->Extensions.ARB_framebuffer_object;
+ case GL_RED:
+ case GL_RG:
+ return ctx->Extensions.ARB_texture_rg;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Is the given base format a legal format for a depth/stencil renderbuffer?
+ */
+static GLboolean
+is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+ switch (baseFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_STENCIL_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if an attachment point is complete and update its Complete field.
+ * \param format if GL_COLOR, this is a color attachment point,
+ * if GL_DEPTH, this is a depth component attachment point,
+ * if GL_STENCIL, this is a stencil component attachment point.
+ */
+static void
+test_attachment_completeness(const struct gl_context *ctx, GLenum format,
+ struct gl_renderbuffer_attachment *att)
+{
+ assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
+
+ /* assume complete */
+ att->Complete = GL_TRUE;
+
+ /* Look for reasons why the attachment might be incomplete */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_object *texObj = att->Texture;
+ struct gl_texture_image *texImage;
+ GLenum baseFormat;
+
+ if (!texObj) {
+ att_incomplete("no texobj");
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
+ if (!texImage) {
+ att_incomplete("no teximage");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texImage->Width < 1 || texImage->Height < 1) {
+ att_incomplete("teximage width/height=0");
+ printf("texobj = %u\n", texObj->Name);
+ printf("level = %d\n", att->TextureLevel);
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
+ att_incomplete("bad z offset");
+ att->Complete = GL_FALSE;
+ return;
+ }
+
+ baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+ if (format == GL_COLOR) {
+ if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+ att_incomplete("bad format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (_mesa_is_format_compressed(texImage->TexFormat)) {
+ att_incomplete("compressed internalformat");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ att_incomplete("bad depth format");
+ return;
+ }
+ }
+ else {
+ ASSERT(format == GL_STENCIL);
+ if (ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.ARB_depth_texture &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ /* no such thing as stencil-only textures */
+ att_incomplete("illegal stencil texture");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ const GLenum baseFormat =
+ _mesa_get_format_base_format(att->Renderbuffer->Format);
+
+ ASSERT(att->Renderbuffer);
+ if (!att->Renderbuffer->InternalFormat ||
+ att->Renderbuffer->Width < 1 ||
+ att->Renderbuffer->Height < 1) {
+ att_incomplete("0x0 renderbuffer");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ if (format == GL_COLOR) {
+ if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+ att_incomplete("bad renderbuffer color format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else if (format == GL_DEPTH) {
+ if (baseFormat == GL_DEPTH_COMPONENT) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att_incomplete("bad renderbuffer depth format");
+ att->Complete = GL_FALSE;
+ return;
+ }
+ }
+ else {
+ assert(format == GL_STENCIL);
+ if (baseFormat == GL_STENCIL_INDEX) {
+ /* OK */
+ }
+ else if (ctx->Extensions.EXT_packed_depth_stencil &&
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* OK */
+ }
+ else {
+ att->Complete = GL_FALSE;
+ att_incomplete("bad renderbuffer stencil format");
+ return;
+ }
+ }
+ }
+ else {
+ ASSERT(att->Type == GL_NONE);
+ /* complete */
+ return;
+ }
+}
+
+
+/**
+ * Test if the given framebuffer object is complete and update its
+ * Status field with the results.
+ * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
+ * driver to make hardware-specific validation/completeness checks.
+ * Also update the framebuffer's Width and Height fields if the
+ * framebuffer is complete.
+ */
+void
+_mesa_test_framebuffer_completeness(struct gl_context *ctx,
+ struct gl_framebuffer *fb)
+{
+ GLuint numImages;
+ GLenum intFormat = GL_NONE; /* color buffers' internal format */
+ GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
+ GLint numSamples = -1;
+ GLint i;
+ GLuint j;
+
+ assert(fb->Name != 0);
+
+ numImages = 0;
+ fb->Width = 0;
+ fb->Height = 0;
+
+ /* Start at -2 to more easily loop over all attachment points.
+ * -2: depth buffer
+ * -1: stencil buffer
+ * >=0: color buffer
+ */
+ for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
+ struct gl_renderbuffer_attachment *att;
+ GLenum f;
+ gl_format attFormat;
+
+ /*
+ * XXX for ARB_fbo, only check color buffers that are named by
+ * GL_READ_BUFFER and GL_DRAW_BUFFERi.
+ */
+
+ /* check for attachment completeness
+ */
+ if (i == -2) {
+ att = &fb->Attachment[BUFFER_DEPTH];
+ test_attachment_completeness(ctx, GL_DEPTH, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("depth attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (i == -1) {
+ att = &fb->Attachment[BUFFER_STENCIL];
+ test_attachment_completeness(ctx, GL_STENCIL, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("stencil attachment incomplete", -1);
+ return;
+ }
+ }
+ else {
+ att = &fb->Attachment[BUFFER_COLOR0 + i];
+ test_attachment_completeness(ctx, GL_COLOR, att);
+ if (!att->Complete) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+ fbo_incomplete("color attachment incomplete", i);
+ return;
+ }
+ }
+
+ /* get width, height, format of the renderbuffer/texture
+ */
+ if (att->Type == GL_TEXTURE) {
+ const struct gl_texture_image *texImg
+ = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+ minWidth = MIN2(minWidth, texImg->Width);
+ maxWidth = MAX2(maxWidth, texImg->Width);
+ minHeight = MIN2(minHeight, texImg->Height);
+ maxHeight = MAX2(maxHeight, texImg->Height);
+ f = texImg->_BaseFormat;
+ attFormat = texImg->TexFormat;
+ numImages++;
+ if (!_mesa_is_legal_color_format(ctx, f) &&
+ !is_legal_depth_format(ctx, f)) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("texture attachment incomplete", -1);
+ return;
+ }
+ }
+ else if (att->Type == GL_RENDERBUFFER_EXT) {
+ minWidth = MIN2(minWidth, att->Renderbuffer->Width);
+ maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
+ minHeight = MIN2(minHeight, att->Renderbuffer->Height);
+ maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
+ f = att->Renderbuffer->InternalFormat;
+ attFormat = att->Renderbuffer->Format;
+ numImages++;
+ }
+ else {
+ assert(att->Type == GL_NONE);
+ continue;
+ }
+
+ if (numSamples < 0) {
+ /* first buffer */
+ numSamples = att->Renderbuffer->NumSamples;
+ }
+
+ /* check if integer color */
+ fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
+
+ /* Error-check width, height, format, samples
+ */
+ if (numImages == 1) {
+ /* save format, num samples */
+ if (i >= 0) {
+ intFormat = f;
+ }
+ }
+ else {
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ /* check that width, height, format are same */
+ if (minWidth != maxWidth || minHeight != maxHeight) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
+ fbo_incomplete("width or height mismatch", -1);
+ return;
+ }
+ /* check that all color buffer have same format */
+ if (intFormat != GL_NONE && f != intFormat) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+ fbo_incomplete("format mismatch", -1);
+ return;
+ }
+ }
+ if (att->Renderbuffer &&
+ att->Renderbuffer->NumSamples != numSamples) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+ fbo_incomplete("inconsistant number of samples", i);
+ return;
+ }
+
+ }
+ }
+
+#if FEATURE_GL
+ if (ctx->API == API_OPENGL) {
+ /* Check that all DrawBuffers are present */
+ for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
+ if (fb->ColorDrawBuffer[j] != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
+ fbo_incomplete("missing drawbuffer", j);
+ return;
+ }
+ }
+ }
+
+ /* Check that the ReadBuffer is present */
+ if (fb->ColorReadBuffer != GL_NONE) {
+ const struct gl_renderbuffer_attachment *att
+ = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
+ assert(att);
+ if (att->Type == GL_NONE) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
+ fbo_incomplete("missing readbuffer", -1);
+ return;
+ }
+ }
+ }
+#else
+ (void) j;
+#endif
+
+ if (numImages == 0) {
+ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+ fbo_incomplete("no attachments", -1);
+ return;
+ }
+
+ /* Provisionally set status = COMPLETE ... */
+ fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+
+ /* ... but the driver may say the FB is incomplete.
+ * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
+ * if anything.
+ */
+ if (ctx->Driver.ValidateFramebuffer) {
+ ctx->Driver.ValidateFramebuffer(ctx, fb);
+ if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ fbo_incomplete("driver marked FBO as incomplete", -1);
+ }
+ }
+
+ if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
+ /*
+ * Note that if ARB_framebuffer_object is supported and the attached
+ * renderbuffers/textures are different sizes, the framebuffer
+ * width/height will be set to the smallest width/height.
+ */
+ fb->Width = minWidth;
+ fb->Height = minHeight;
+
+ /* finally, update the visual info for the framebuffer */
+ _mesa_update_framebuffer_visual(ctx, fb);
+ }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsRenderbufferEXT(GLuint renderbuffer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ if (renderbuffer) {
+ struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (rb != NULL && rb != &DummyRenderbuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
+void GLAPIENTRY
+_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+{
+ struct gl_renderbuffer *newRb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
+ return;
+ }
+
+ /* No need to flush here since the render buffer binding has no
+ * effect on rendering state.
+ */
+
+ if (renderbuffer) {
+ newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (newRb == &DummyRenderbuffer) {
+ /* ID was reserved, but no real renderbuffer object made yet */
+ newRb = NULL;
+ }
+ else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All RB IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
+ return;
+ }
+
+ if (!newRb) {
+ /* create new renderbuffer object */
+ newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
+ if (!newRb) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
+ return;
+ }
+ ASSERT(newRb->AllocStorage);
+ _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
+ newRb->RefCount = 1; /* referenced by hash table */
+ }
+ }
+ else {
+ newRb = NULL;
+ }
+
+ ASSERT(newRb != &DummyRenderbuffer);
+
+ _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
+}
+
+
+/**
+ * If the given renderbuffer is anywhere attached to the framebuffer, detach
+ * the renderbuffer.
+ * This is used when a renderbuffer object is deleted.
+ * The spec calls for unbinding.
+ */
+static void
+detach_renderbuffer(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ if (fb->Attachment[i].Renderbuffer == rb) {
+ _mesa_remove_attachment(ctx, &fb->Attachment[i]);
+ }
+ }
+ invalidate_framebuffer(fb);
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
+{
+ GLint i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ for (i = 0; i < n; i++) {
+ if (renderbuffers[i] > 0) {
+ struct gl_renderbuffer *rb;
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
+ if (rb) {
+ /* check if deleting currently bound renderbuffer object */
+ if (rb == ctx->CurrentRenderbuffer) {
+ /* bind default */
+ ASSERT(rb->RefCount >= 2);
+ _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ }
+
+ if (ctx->DrawBuffer->Name) {
+ detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
+ }
+ if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) {
+ detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
+ }
+
+ /* Remove from hash table immediately, to free the ID.
+ * But the object will not be freed until it's no longer
+ * referenced anywhere else.
+ */
+ _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
+
+ if (rb != &DummyRenderbuffer) {
+ /* no longer referenced by hash table */
+ _mesa_reference_renderbuffer(&rb, NULL);
+ }
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLint i;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (n < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
+ return;
+ }
+
+ if (!renderbuffers)
+ return;
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
+
+ for (i = 0; i < n; i++) {
+ GLuint name = first + i;
+ renderbuffers[i] = name;
+ /* insert dummy placeholder into hash table */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ }
+}
+
+
+/**
+ * Given an internal format token for a render buffer, return the
+ * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
+ * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
+ *
+ * This is similar to _mesa_base_tex_format() but the set of valid
+ * internal formats is different.
+ *
+ * Note that even if a format is determined to be legal here, validation
+ * of the FBO may fail if the format is not supported by the driver/GPU.
+ *
+ * \param internalFormat as passed to glRenderbufferStorage()
+ * \return the base internal format, or 0 if internalFormat is illegal
+ */
+GLenum
+_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
+{
+ /*
+ * Notes: some formats such as alpha, luminance, etc. were added
+ * with GL_ARB_framebuffer_object.
+ */
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case GL_SRGB8_EXT:
+ return GL_RGB;
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ case GL_RGBA16_SNORM:
+ case GL_SRGB8_ALPHA8_EXT:
+ return GL_RGBA;
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ return GL_STENCIL_INDEX;
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ if (ctx->Extensions.EXT_packed_depth_stencil)
+ return GL_DEPTH_STENCIL_EXT;
+ else
+ return 0;
+ case GL_RED:
+ case GL_R8:
+ case GL_R16:
+ return ctx->Extensions.ARB_texture_rg ? GL_RED : 0;
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ return ctx->Extensions.ARB_texture_rg ? GL_RG : 0;
+ /* XXX add floating point and integer formats eventually */
+ default:
+ return 0;
+ }
+}
+
+
+/**
+ * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
+ */
+static void
+invalidate_rb(GLuint key, void *data, void *userData)
+{
+ struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
+ struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData;
+
+ /* If this is a user-created FBO */
+ if (fb->Name) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Type == GL_RENDERBUFFER &&
+ att->Renderbuffer == rb) {
+ /* Mark fb status as indeterminate to force re-validation */
+ fb->_Status = 0;
+ return;
+ }
+ }
+ }
+}
+
+
+/** sentinal value, see below */
+#define NO_SAMPLES 1000
+
+
+/**
+ * Helper function used by _mesa_RenderbufferStorageEXT() and
+ * _mesa_RenderbufferStorageMultisample().
+ * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
+ */
+static void
+renderbuffer_storage(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei samples)
+{
+ const char *func = samples == NO_SAMPLES ?
+ "glRenderbufferStorage" : "RenderbufferStorageMultisample";
+ struct gl_renderbuffer *rb;
+ GLenum baseFormat;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
+ return;
+ }
+
+ baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
+ if (baseFormat == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
+ return;
+ }
+
+ if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
+ return;
+ }
+
+ if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
+ return;
+ }
+
+ if (samples == NO_SAMPLES) {
+ /* NumSamples == 0 indicates non-multisampling */
+ samples = 0;
+ }
+ else if (samples > (GLsizei) ctx->Const.MaxSamples) {
+ /* note: driver may choose to use more samples than what's requested */
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (rb->InternalFormat == internalFormat &&
+ rb->Width == (GLuint) width &&
+ rb->Height == (GLuint) height) {
+ /* no change in allocation needed */
+ return;
+ }
+
+ /* These MUST get set by the AllocStorage func */
+ rb->Format = MESA_FORMAT_NONE;
+ rb->NumSamples = samples;
+
+ /* Now allocate the storage */
+ ASSERT(rb->AllocStorage);
+ if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
+ /* No error - check/set fields now */
+ assert(rb->Format != MESA_FORMAT_NONE);
+ assert(rb->Width == (GLuint) width);
+ assert(rb->Height == (GLuint) height);
+ rb->InternalFormat = internalFormat;
+ rb->_BaseFormat = baseFormat;
+ assert(rb->_BaseFormat != 0);
+ }
+ else {
+ /* Probably ran out of memory - clear the fields */
+ rb->Width = 0;
+ rb->Height = 0;
+ rb->Format = MESA_FORMAT_NONE;
+ rb->InternalFormat = GL_NONE;
+ rb->_BaseFormat = GL_NONE;
+ rb->NumSamples = 0;
+ }
+
+ /* Invalidate the framebuffers the renderbuffer is attached in. */
+ if (rb->AttachedAnytime) {
+ _mesa_HashWalk(ctx->Shared->FrameBuffers, invalidate_rb, rb);
+ }
+}
+
+
+#if FEATURE_OES_EGL_image
+void GLAPIENTRY
+_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
+{
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.OES_EGL_image) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEGLImageTargetRenderbufferStorageOES(unsupported)");
+ return;
+ }
+
+ if (target != GL_RENDERBUFFER) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "EGLImageTargetRenderbufferStorageOES");
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "EGLImageTargetRenderbufferStorageOES");
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
+}
+#endif
+
+
+/**
+ * Helper function for _mesa_GetRenderbufferParameterivEXT() and
+ * _mesa_GetFramebufferAttachmentParameterivEXT()
+ * We have to be careful to respect the base format. For example, if a
+ * renderbuffer/texture was created with internalFormat=GL_RGB but the
+ * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
+ * we need to return zero.
+ */
+static GLint
+get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
+{
+ switch (pname) {
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA ||
+ baseFormat == GL_RG || baseFormat == GL_RED)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ if (baseFormat == GL_RGB || baseFormat == GL_RGBA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA ||
+ baseFormat == GL_LUMINANCE_ALPHA)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)
+ return _mesa_get_format_bits(format, pname);
+ else
+ return 0;
+ default:
+ return 0;
+ }
+}
+
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ /* GL_ARB_fbo says calling this function is equivalent to calling
+ * glRenderbufferStorageMultisample() with samples=0. We pass in
+ * a token value here just for error reporting purposes.
+ */
+ renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
+}
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
+ GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ renderbuffer_storage(target, internalFormat, width, height, samples);
+}
+
+
+/**
+ * OpenGL ES version of glRenderBufferStorage.
+ */
+void GLAPIENTRY
+_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+ GLsizei width, GLsizei height)
+{
+ switch (internalFormat) {
+ case GL_RGB565:
+ /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
+ /* choose a closest format */
+ internalFormat = GL_RGB5;
+ break;
+ default:
+ break;
+ }
+
+ renderbuffer_storage(target, internalFormat, width, height, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
+{
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (target != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetRenderbufferParameterivEXT(target)");
+ return;
+ }
+
+ rb = ctx->CurrentRenderbuffer;
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetRenderbufferParameterivEXT");
+ return;
+ }
+
+ /* No need to flush here since we're just quering state which is
+ * not effected by rendering.
+ */
+
+ switch (pname) {
+ case GL_RENDERBUFFER_WIDTH_EXT:
+ *params = rb->Width;
+ return;
+ case GL_RENDERBUFFER_HEIGHT_EXT:
+ *params = rb->Height;
+ return;
+ case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
+ *params = rb->InternalFormat;
+ return;
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
+ break;
+ case GL_RENDERBUFFER_SAMPLES:
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ *params = rb->NumSamples;
+ break;
+ }
+ /* fallthrough */
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetRenderbufferParameterivEXT(target)");
+ return;
+ }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsFramebufferEXT(GLuint framebuffer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+ if (framebuffer) {
+ struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (rb != NULL && rb != &DummyFramebuffer)
+ return GL_TRUE;
+ }
+ return GL_FALSE;
+}
+
+
+/**
+ * Check if any of the attachments of the given framebuffer are textures
+ * (render to texture). Call ctx->Driver.RenderTexture() for such
+ * attachments.
+ */
+static void
+check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ GLuint i;
+ ASSERT(ctx->Driver.RenderTexture);
+
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ struct gl_texture_object *texObj = att->Texture;
+ if (texObj
+ && texObj->Image[att->CubeMapFace][att->TextureLevel]) {
+ ctx->Driver.RenderTexture(ctx, fb, att);
+ }
+ }
+}
+
+
+/**
+ * Examine all the framebuffer's attachments to see if any are textures.
+ * If so, call ctx->Driver.FinishRenderTexture() for each texture to
+ * notify the device driver that the texture image may have changed.
+ */
+static void
+check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+ if (fb->Name == 0)
+ return; /* can't render to texture with winsys framebuffers */
+
+ if (ctx->Driver.FinishRenderTexture) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Texture && att->Renderbuffer) {
+ ctx->Driver.FinishRenderTexture(ctx, att);
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+{
+ struct gl_framebuffer *newDrawFb, *newReadFb;
+ struct gl_framebuffer *oldDrawFb, *oldReadFb;
+ GLboolean bindReadBuf, bindDrawBuf;
+ GET_CURRENT_CONTEXT(ctx);
+
+#ifdef DEBUG
+ if (ctx->Extensions.ARB_framebuffer_object) {
+ ASSERT(ctx->Extensions.EXT_framebuffer_object);
+ ASSERT(ctx->Extensions.EXT_framebuffer_blit);
+ }
+#endif
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.EXT_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBindFramebufferEXT(unsupported)");
+ return;
+ }
+
+ switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+ case GL_DRAW_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_FALSE;
+ break;
+ case GL_READ_FRAMEBUFFER_EXT:
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+ bindDrawBuf = GL_FALSE;
+ bindReadBuf = GL_TRUE;
+ break;
+#endif
+ case GL_FRAMEBUFFER_EXT:
+ bindDrawBuf = GL_TRUE;
+ bindReadBuf = GL_TRUE;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+ return;
+ }
+
+ if (framebuffer) {
+ /* Binding a user-created framebuffer object */
+ newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
+ if (newDrawFb == &DummyFramebuffer) {
+ /* ID was reserved, but no real framebuffer object made yet */
+ newDrawFb = NULL;
+ }
+ else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
+ /* All FBO IDs must be Gen'd */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
+ return;
+ }
+
+ if (!newDrawFb) {
+ /* create new framebuffer object */
+ newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
+ if (!newDrawFb) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
+ return;
+ }
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
+ }
+ newReadFb = newDrawFb;
+ }
+ else {
+ /* Binding the window system framebuffer (which was originally set
+ * with MakeCurrent).
+ */
+ newDrawFb = ctx->WinSysDrawBuffer;
+ newReadFb = ctx->WinSysReadBuffer;
+ }
+
+ ASSERT(newDrawFb);
+ ASSERT(newDrawFb != &DummyFramebuffer);
+
+ /* save pointers to current/old framebuffers */
+ oldDrawFb = ctx->DrawBuffer;
+ oldReadFb = ctx->ReadBuffer;
+
+ /* check if really changing bindings */
+ if (oldDrawFb == newDrawFb)
+ bindDrawBuf = GL_FALSE;
+ if (oldReadFb == newReadFb)
+ bindReadBuf = GL_FALSE;
+
+ /*
+ * OK, now bind the new Draw/Read framebuffers, if they're changing.
+ *
+ * We also check if we're beginning and/or ending render-to-texture.
+ * When a framebuffer with texture attachments is unbound, call
+ * ctx->Driver.FinishRenderTexture().
+ * When a framebuffer with texture attachments is bound, call
+ * ctx->Driver.RenderTexture().
+ *
+ * Note that if the ReadBuffer has texture attachments we don't consider
+ * that a render-to-texture case.
+ */
+ if (bindReadBuf) {
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ /* check if old readbuffer was render-to-texture */
+ check_end_texture_render(ctx, oldReadFb);
+
+ _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
+ }
+
+ if (bindDrawBuf) {
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ /* check if old read/draw buffers were render-to-texture */
+ if (!bindReadBuf)
+ check_end_texture_render(ctx, oldReadFb);
+
+ if (oldDrawFb != oldReadFb)
+ check_end_texture_render(ctx, oldDrawFb);
+
+ /* check if newly bound framebuffer has any texture attachments */
+ check_begin_texture_render(ctx, newDrawFb);
+
+ _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
+ }
+
+ if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
+ ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
+{
+ GLint i;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ for (i = 0; i < n; i++) {
+ if (framebuffers[i] > 0) {
+ struct gl_framebuffer *fb;
+ fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
+ if (fb) {
+ ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
+
+ /* check if deleting currently bound framebuffer object */
+ if (ctx->Extensions.EXT_framebuffer_blit) {
+ /* separate draw/read binding points */
+ if (fb == ctx->DrawBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+ }
+ if (fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
+ }
+ }
+ else {
+ /* only one binding point for read/draw buffers */
+ if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
+ /* bind default */
+ ASSERT(fb->RefCount >= 2);
+ _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ }
+ }
+
+ /* remove from hash table immediately, to free the ID */
+ _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
+
+ if (fb != &DummyFramebuffer) {
+ /* But the object will not be freed until it's no longer
+ * bound in any context.
+ */
+ _mesa_reference_framebuffer(&fb, NULL);
+ }
+ }
+ }
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLint i;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (n < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
+ return;
+ }
+
+ if (!framebuffers)
+ return;
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
+
+ for (i = 0; i < n; i++) {
+ GLuint name = first + i;
+ framebuffers[i] = name;
+ /* insert dummy placeholder into hash table */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ }
+}
+
+
+
+GLenum GLAPIENTRY
+_mesa_CheckFramebufferStatusEXT(GLenum target)
+{
+ struct gl_framebuffer *buffer;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
+
+ buffer = get_framebuffer_target(ctx, target);
+ if (!buffer) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+ return 0;
+ }
+
+ if (buffer->Name == 0) {
+ /* The window system / default framebuffer is always complete */
+ return GL_FRAMEBUFFER_COMPLETE_EXT;
+ }
+
+ /* No need to flush here */
+
+ if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
+ _mesa_test_framebuffer_completeness(ctx, buffer);
+ }
+
+ return buffer->_Status;
+}
+
+
+
+/**
+ * Common code called by glFramebufferTexture1D/2D/3DEXT().
+ */
+static void
+framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
+ GLenum attachment, GLenum textarget, GLuint texture,
+ GLint level, GLint zoffset)
+{
+ struct gl_renderbuffer_attachment *att;
+ struct gl_texture_object *texObj = NULL;
+ struct gl_framebuffer *fb;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ fb = get_framebuffer_target(ctx, target);
+ if (!fb) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
+ return;
+ }
+
+ /* check framebuffer binding */
+ if (fb->Name == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT", caller);
+ return;
+ }
+
+
+ /* The textarget, level, and zoffset parameters are only validated if
+ * texture is non-zero.
+ */
+ if (texture) {
+ GLboolean err = GL_TRUE;
+
+ texObj = _mesa_lookup_texture(ctx, texture);
+ if (texObj != NULL) {
+ if (textarget == 0) {
+ /* XXX what's the purpose of this? */
+ err = (texObj->Target != GL_TEXTURE_3D) &&
+ (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
+ (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
+ }
+ else {
+ err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
+ ? !IS_CUBE_FACE(textarget)
+ : (texObj->Target != textarget);
+ }
+ }
+ else {
+ /* can't render to a non-existant texture */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT(non existant texture)",
+ caller);
+ return;
+ }
+
+ if (err) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture%sEXT(texture target mismatch)",
+ caller);
+ return;
+ }
+
+ if (texObj->Target == GL_TEXTURE_3D) {
+ const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (zoffset < 0 || zoffset >= maxSize) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(zoffset)", caller);
+ return;
+ }
+ }
+ else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
+ (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+ if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(layer)", caller);
+ return;
+ }
+ }
+
+ if ((level < 0) ||
+ (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferTexture%sEXT(level)", caller);
+ return;
+ }
+ }
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture%sEXT(attachment)", caller);
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ _glthread_LOCK_MUTEX(fb->Mutex);
+ if (texObj) {
+ _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
+ level, zoffset);
+ /* Set the render-to-texture flag. We'll check this flag in
+ * glTexImage() and friends to determine if we need to revalidate
+ * any FBOs that might be rendering into this texture.
+ * This flag never gets cleared since it's non-trivial to determine
+ * when all FBOs might be done rendering to this texture. That's OK
+ * though since it's uncommon to render to a texture then repeatedly
+ * call glTexImage() to change images in the texture.
+ */
+ texObj->_RenderToTexture = GL_TRUE;
+ }
+ else {
+ _mesa_remove_attachment(ctx, att);
+ }
+
+ invalidate_framebuffer(fb);
+
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture1DEXT(textarget)");
+ return;
+ }
+
+ framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
+ level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) &&
+ (textarget != GL_TEXTURE_2D) &&
+ (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
+ (!IS_CUBE_FACE(textarget))) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
+ return;
+ }
+
+ framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
+ level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
+ GLenum textarget, GLuint texture,
+ GLint level, GLint zoffset)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferTexture3DEXT(textarget)");
+ return;
+ }
+
+ framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
+ level, zoffset);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+ GLuint texture, GLint level, GLint layer)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
+ level, layer);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
+ GLenum renderbufferTarget,
+ GLuint renderbuffer)
+{
+ struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *fb;
+ struct gl_renderbuffer *rb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ fb = get_framebuffer_target(ctx, target);
+ if (!fb) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glFramebufferRenderbufferEXT(target)");
+ return;
+ }
+
+ if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(renderbufferTarget)");
+ return;
+ }
+
+ if (fb->Name == 0) {
+ /* Can't attach new renderbuffers to a window system framebuffer */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
+ return;
+ }
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glFramebufferRenderbufferEXT(invalid attachment %s)",
+ _mesa_lookup_enum_by_nr(attachment));
+ return;
+ }
+
+ if (renderbuffer) {
+ rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+ if (!rb) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferRenderbufferEXT(non-existant"
+ " renderbuffer %u)", renderbuffer);
+ return;
+ }
+ else if (rb == &DummyRenderbuffer) {
+ /* This is what NVIDIA does */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glFramebufferRenderbufferEXT(renderbuffer %u)",
+ renderbuffer);
+ return;
+ }
+ }
+ else {
+ /* remove renderbuffer attachment */
+ rb = NULL;
+ }
+
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
+ rb && rb->Format != MESA_FORMAT_NONE) {
+ /* make sure the renderbuffer is a depth/stencil format */
+ const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
+ if (baseFormat != GL_DEPTH_STENCIL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferRenderbufferEXT(renderbuffer"
+ " is not DEPTH_STENCIL format)");
+ return;
+ }
+ }
+
+
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ assert(ctx->Driver.FramebufferRenderbuffer);
+ ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
+
+ /* Some subsequent GL commands may depend on the framebuffer's visual
+ * after the binding is updated. Update visual info now.
+ */
+ _mesa_update_framebuffer_visual(ctx, fb);
+}
+
+
+void GLAPIENTRY
+_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
+ GLenum pname, GLint *params)
+{
+ const struct gl_renderbuffer_attachment *att;
+ struct gl_framebuffer *buffer;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ buffer = get_framebuffer_target(ctx, target);
+ if (!buffer) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(target)");
+ return;
+ }
+
+ if (buffer->Name == 0) {
+ /* the default / window-system FBO */
+ att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
+ }
+ else {
+ /* user-created framebuffer FBO */
+ att = _mesa_get_attachment(ctx, buffer, attachment);
+ }
+
+ if (att == NULL) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(attachment)");
+ return;
+ }
+
+ if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+ /* the depth and stencil attachments must point to the same buffer */
+ const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
+ depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
+ stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+ if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
+ " attachments differ)");
+ return;
+ }
+ }
+
+ /* No need to flush here */
+
+ switch (pname) {
+ case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
+ *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
+ if (att->Type == GL_RENDERBUFFER_EXT) {
+ *params = att->Renderbuffer->Name;
+ }
+ else if (att->Type == GL_TEXTURE) {
+ *params = att->Texture->Name;
+ }
+ else {
+ assert(att->Type == GL_NONE);
+ *params = 0;
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
+ if (att->Type == GL_TEXTURE) {
+ *params = att->TextureLevel;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
+ if (att->Type == GL_TEXTURE) {
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
+ *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
+ if (att->Type == GL_TEXTURE) {
+ if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
+ *params = att->Zoffset;
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else {
+ if (ctx->Extensions.EXT_framebuffer_sRGB && ctx->Const.sRGBCapable) {
+ *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
+ }
+ else {
+ /* According to ARB_framebuffer_sRGB, we should return LINEAR
+ * if the sRGB conversion is unsupported. */
+ *params = GL_LINEAR;
+ }
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ return;
+ }
+ else {
+ gl_format format = att->Renderbuffer->Format;
+ if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {
+ /* special cases */
+ *params = GL_INDEX;
+ }
+ else {
+ *params = _mesa_get_format_datatype(format);
+ }
+ }
+ return;
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ if (!ctx->Extensions.ARB_framebuffer_object) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ }
+ else if (att->Texture) {
+ const struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
+ att->TextureLevel);
+ if (texImage) {
+ *params = get_component_bits(pname, texImage->_BaseFormat,
+ texImage->TexFormat);
+ }
+ else {
+ *params = 0;
+ }
+ }
+ else if (att->Renderbuffer) {
+ *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
+ att->Renderbuffer->Format);
+ }
+ else {
+ *params = 0;
+ }
+ return;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetFramebufferAttachmentParameterivEXT(pname)");
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_GenerateMipmapEXT(GLenum target)
+{
+ struct gl_texture_object *texObj;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_CUBE_MAP:
+ /* OK, legal value */
+ break;
+ default:
+ /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ if (texObj->BaseLevel >= texObj->MaxLevel) {
+ /* nothing to do */
+ return;
+ }
+
+ if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
+ !_mesa_cube_complete(texObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGenerateMipmap(incomplete cube map)");
+ return;
+ }
+
+ _mesa_lock_texture(ctx, texObj);
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ GLuint face;
+ for (face = 0; face < 6; face++)
+ ctx->Driver.GenerateMipmap(ctx,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
+ texObj);
+ }
+ else {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+#if FEATURE_EXT_framebuffer_blit
+
+static const struct gl_renderbuffer_attachment *
+find_attachment(const struct gl_framebuffer *fb,
+ const struct gl_renderbuffer *rb)
+{
+ GLuint i;
+ for (i = 0; i < Elements(fb->Attachment); i++) {
+ if (fb->Attachment[i].Renderbuffer == rb)
+ return &fb->Attachment[i];
+ }
+ return NULL;
+}
+
+
+
+/**
+ * Blit rectangular region, optionally from one framebuffer to another.
+ *
+ * Note, if the src buffer is multisampled and the dest is not, this is
+ * when the samples must be resolved to a single color.
+ */
+void GLAPIENTRY
+_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ GLbitfield mask, GLenum filter)
+{
+ const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT);
+ const struct gl_framebuffer *readFb, *drawFb;
+ const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
+ GET_CURRENT_CONTEXT(ctx);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+ FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx,
+ "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, _mesa_lookup_enum_by_nr(filter));
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ readFb = ctx->ReadBuffer;
+ drawFb = ctx->DrawBuffer;
+
+ if (!readFb || !drawFb) {
+ /* This will normally never happen but someday we may want to
+ * support MakeCurrent() with no drawables.
+ */
+ return;
+ }
+
+ /* check for complete framebuffers */
+ if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+ readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glBlitFramebufferEXT(incomplete draw/read buffers)");
+ return;
+ }
+
+ if (filter != GL_NEAREST && filter != GL_LINEAR) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
+ return;
+ }
+
+ if (mask & ~legalMaskBits) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
+ return;
+ }
+
+ /* depth/stencil must be blitted with nearest filtering */
+ if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
+ && filter != GL_NEAREST) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+ return;
+ }
+
+ /* get color read/draw renderbuffers */
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ colorReadRb = readFb->_ColorReadBuffer;
+ colorDrawRb = drawFb->_ColorDrawBuffers[0];
+ }
+ else {
+ colorReadRb = colorDrawRb = NULL;
+ }
+
+ if (mask & GL_STENCIL_BUFFER_BIT) {
+ struct gl_renderbuffer *readRb = readFb->_StencilBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(stencil buffer size mismatch");
+ return;
+ }
+ }
+
+ if (mask & GL_DEPTH_BUFFER_BIT) {
+ struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
+ struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
+ if (!readRb ||
+ !drawRb ||
+ _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
+ _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(depth buffer size mismatch");
+ return;
+ }
+ }
+
+ if (readFb->Visual.samples > 0 &&
+ drawFb->Visual.samples > 0 &&
+ readFb->Visual.samples != drawFb->Visual.samples) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(mismatched samples");
+ return;
+ }
+
+ /* extra checks for multisample copies... */
+ if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
+ /* src and dest region sizes must be the same */
+ if (srcX1 - srcX0 != dstX1 - dstX0 ||
+ srcY1 - srcY0 != dstY1 - dstY0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample region sizes");
+ return;
+ }
+
+ /* color formats must match */
+ if (colorReadRb &&
+ colorDrawRb &&
+ colorReadRb->Format != colorDrawRb->Format) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
+ return;
+ }
+ }
+
+ if (!ctx->Extensions.EXT_framebuffer_blit) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
+ return;
+ }
+
+ /* Debug code */
+ if (DEBUG_BLIT) {
+ printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
+ " 0x%x, 0x%x)\n",
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
+ if (colorReadRb) {
+ const struct gl_renderbuffer_attachment *att;
+
+ att = find_attachment(readFb, colorReadRb);
+ printf(" Src FBO %u RB %u (%dx%d) ",
+ readFb->Name, colorReadRb->Name,
+ colorReadRb->Width, colorReadRb->Height);
+ if (att && att->Texture) {
+ printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ printf("\n");
+
+ att = find_attachment(drawFb, colorDrawRb);
+ printf(" Dst FBO %u RB %u (%dx%d) ",
+ drawFb->Name, colorDrawRb->Name,
+ colorDrawRb->Width, colorDrawRb->Height);
+ if (att && att->Texture) {
+ printf("Tex %u tgt 0x%x level %u face %u",
+ att->Texture->Name,
+ att->Texture->Target,
+ att->TextureLevel,
+ att->CubeMapFace);
+ }
+ printf("\n");
+ }
+ }
+
+ ASSERT(ctx->Driver.BlitFramebuffer);
+ ctx->Driver.BlitFramebuffer(ctx,
+ srcX0, srcY0, srcX1, srcY1,
+ dstX0, dstY0, dstX1, dstY1,
+ mask, filter);
+}
+#endif /* FEATURE_EXT_framebuffer_blit */
+
+#if FEATURE_ARB_geometry_shader4
+void GLAPIENTRY
+_mesa_FramebufferTextureARB(GLenum target, GLenum attachment,
+ GLuint texture, GLint level)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTextureARB "
+ "not implemented!");
+}
+
+void GLAPIENTRY
+_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,
+ GLuint texture, GLint level, GLenum face)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glFramebufferTextureFaceARB "
+ "not implemented!");
+}
+#endif /* FEATURE_ARB_geometry_shader4 */
diff --git a/mesalib/src/mesa/main/formats.c b/mesalib/src/mesa/main/formats.c index db10c9b4c..e2541bdf6 100644 --- a/mesalib/src/mesa/main/formats.c +++ b/mesalib/src/mesa/main/formats.c @@ -1,1698 +1,1698 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (c) 2008-2009 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "imports.h" -#include "formats.h" -#include "mfeatures.h" - - -/** - * Information about texture formats. - */ -struct gl_format_info -{ - gl_format Name; - - /** text name for debugging */ - const char *StrName; - - /** - * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA, - * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA, - * GL_COLOR_INDEX, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, - * GL_DEPTH_STENCIL, GL_DUDV_ATI. - */ - GLenum BaseFormat; - - /** - * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALED, - * GL_UNSIGNED_INT, GL_INT, GL_FLOAT. - */ - GLenum DataType; - - GLubyte RedBits; - GLubyte GreenBits; - GLubyte BlueBits; - GLubyte AlphaBits; - GLubyte LuminanceBits; - GLubyte IntensityBits; - GLubyte IndexBits; - GLubyte DepthBits; - GLubyte StencilBits; - - /** - * To describe compressed formats. If not compressed, Width=Height=1. - */ - GLubyte BlockWidth, BlockHeight; - GLubyte BytesPerBlock; -}; - - -/** - * Info about each format. - * These must be in the same order as the MESA_FORMAT_* enums so that - * we can do lookups without searching. - */ -static struct gl_format_info format_info[MESA_FORMAT_COUNT] = -{ - { - MESA_FORMAT_NONE, /* Name */ - "MESA_FORMAT_NONE", /* StrName */ - GL_NONE, /* BaseFormat */ - GL_NONE, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 0, 0, 0 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGBA8888, /* Name */ - "MESA_FORMAT_RGBA8888", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGBA8888_REV, /* Name */ - "MESA_FORMAT_RGBA8888_REV", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB8888, /* Name */ - "MESA_FORMAT_ARGB8888", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB8888_REV, /* Name */ - "MESA_FORMAT_ARGB8888_REV", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_XRGB8888, /* Name */ - "MESA_FORMAT_XRGB8888", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_XRGB8888_REV, /* Name */ - "MESA_FORMAT_XRGB8888_REV", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGB888, /* Name */ - "MESA_FORMAT_RGB888", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 3 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_BGR888, /* Name */ - "MESA_FORMAT_BGR888", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 3 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGB565, /* Name */ - "MESA_FORMAT_RGB565", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGB565_REV, /* Name */ - "MESA_FORMAT_RGB565_REV", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB4444, /* Name */ - "MESA_FORMAT_ARGB4444", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB4444_REV, /* Name */ - "MESA_FORMAT_ARGB4444_REV", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGBA5551, /* Name */ - "MESA_FORMAT_RGBA5551", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB1555, /* Name */ - "MESA_FORMAT_ARGB1555", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_ARGB1555_REV, /* Name */ - "MESA_FORMAT_ARGB1555_REV", /* StrName */ - GL_RGBA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_AL44, /* Name */ - "MESA_FORMAT_AL44", /* StrName */ - GL_LUMINANCE_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */ - 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_AL88, /* Name */ - "MESA_FORMAT_AL88", /* StrName */ - GL_LUMINANCE_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */ - 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_AL88_REV, /* Name */ - "MESA_FORMAT_AL88_REV", /* StrName */ - GL_LUMINANCE_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */ - 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_AL1616, /* Name */ - "MESA_FORMAT_AL1616", /* StrName */ - GL_LUMINANCE_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */ - 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_AL1616_REV, /* Name */ - "MESA_FORMAT_AL1616_REV", /* StrName */ - GL_LUMINANCE_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */ - 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_RGB332, /* Name */ - "MESA_FORMAT_RGB332", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_A8, /* Name */ - "MESA_FORMAT_A8", /* StrName */ - GL_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_A16, /* Name */ - "MESA_FORMAT_A16", /* StrName */ - GL_ALPHA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_L8, /* Name */ - "MESA_FORMAT_L8", /* StrName */ - GL_LUMINANCE, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_L16, /* Name */ - "MESA_FORMAT_L16", /* StrName */ - GL_LUMINANCE, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_I8, /* Name */ - "MESA_FORMAT_I8", /* StrName */ - GL_INTENSITY, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_I16, /* Name */ - "MESA_FORMAT_I16", /* StrName */ - GL_INTENSITY, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_CI8, /* Name */ - "MESA_FORMAT_CI8", /* StrName */ - GL_COLOR_INDEX, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 8, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_YCBCR, /* Name */ - "MESA_FORMAT_YCBCR", /* StrName */ - GL_YCBCR_MESA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_YCBCR_REV, /* Name */ - "MESA_FORMAT_YCBCR_REV", /* StrName */ - GL_YCBCR_MESA, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_R8, - "MESA_FORMAT_R8", - GL_RED, - GL_UNSIGNED_NORMALIZED, - 8, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1 - }, - { - MESA_FORMAT_RG88, - "MESA_FORMAT_RG88", - GL_RG, - GL_UNSIGNED_NORMALIZED, - 8, 8, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_RG88_REV, - "MESA_FORMAT_RG88_REV", - GL_RG, - GL_UNSIGNED_NORMALIZED, - 8, 8, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_R16, - "MESA_FORMAT_R16", - GL_RED, - GL_UNSIGNED_NORMALIZED, - 16, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_RG1616, - "MESA_FORMAT_RG1616", - GL_RG, - GL_UNSIGNED_NORMALIZED, - 16, 16, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_RG1616_REV, - "MESA_FORMAT_RG1616_REV", - GL_RG, - GL_UNSIGNED_NORMALIZED, - 16, 16, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_ARGB2101010, - "MESA_FORMAT_ARGB2101010", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 10, 10, 10, 2, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_Z24_S8, /* Name */ - "MESA_FORMAT_Z24_S8", /* StrName */ - GL_DEPTH_STENCIL, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_S8_Z24, /* Name */ - "MESA_FORMAT_S8_Z24", /* StrName */ - GL_DEPTH_STENCIL, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_Z16, /* Name */ - "MESA_FORMAT_Z16", /* StrName */ - GL_DEPTH_COMPONENT, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 2 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_X8_Z24, /* Name */ - "MESA_FORMAT_X8_Z24", /* StrName */ - GL_DEPTH_COMPONENT, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_Z24_X8, /* Name */ - "MESA_FORMAT_Z24_X8", /* StrName */ - GL_DEPTH_COMPONENT, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_Z32, /* Name */ - "MESA_FORMAT_Z32", /* StrName */ - GL_DEPTH_COMPONENT, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 4 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_S8, /* Name */ - "MESA_FORMAT_S8", /* StrName */ - GL_STENCIL_INDEX, /* BaseFormat */ - GL_UNSIGNED_INT, /* DataType */ - 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_SRGB8, - "MESA_FORMAT_SRGB8", - GL_RGB, - GL_UNSIGNED_NORMALIZED, - 8, 8, 8, 0, - 0, 0, 0, 0, 0, - 1, 1, 3 - }, - { - MESA_FORMAT_SRGBA8, - "MESA_FORMAT_SRGBA8", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_SARGB8, - "MESA_FORMAT_SARGB8", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_SL8, - "MESA_FORMAT_SL8", - GL_LUMINANCE, - GL_UNSIGNED_NORMALIZED, - 0, 0, 0, 0, - 8, 0, 0, 0, 0, - 1, 1, 1 - }, - { - MESA_FORMAT_SLA8, - "MESA_FORMAT_SLA8", - GL_LUMINANCE_ALPHA, - GL_UNSIGNED_NORMALIZED, - 0, 0, 0, 8, - 8, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SRGB_DXT1, /* Name */ - "MESA_FORMAT_SRGB_DXT1", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SRGBA_DXT1, - "MESA_FORMAT_SRGBA_DXT1", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SRGBA_DXT3, - "MESA_FORMAT_SRGBA_DXT3", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SRGBA_DXT5, - "MESA_FORMAT_SRGBA_DXT5", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - - { - MESA_FORMAT_RGB_FXT1, - "MESA_FORMAT_RGB_FXT1", - GL_RGB, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 0, /* approx Red/Green/BlueBits */ - 0, 0, 0, 0, 0, - 8, 4, 16 /* 16 bytes per 8x4 block */ - }, - { - MESA_FORMAT_RGBA_FXT1, - "MESA_FORMAT_RGBA_FXT1", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, - 8, 4, 16 /* 16 bytes per 8x4 block */ - }, - - { - MESA_FORMAT_RGB_DXT1, /* Name */ - "MESA_FORMAT_RGB_DXT1", /* StrName */ - GL_RGB, /* BaseFormat */ - GL_UNSIGNED_NORMALIZED, /* DataType */ - 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_RGBA_DXT1, - "MESA_FORMAT_RGBA_DXT1", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_RGBA_DXT3, - "MESA_FORMAT_RGBA_DXT3", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_RGBA_DXT5, - "MESA_FORMAT_RGBA_DXT5", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 4, 4, 4, 4, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_RGBA_FLOAT32, - "MESA_FORMAT_RGBA_FLOAT32", - GL_RGBA, - GL_FLOAT, - 32, 32, 32, 32, - 0, 0, 0, 0, 0, - 1, 1, 16 - }, - { - MESA_FORMAT_RGBA_FLOAT16, - "MESA_FORMAT_RGBA_FLOAT16", - GL_RGBA, - GL_FLOAT, - 16, 16, 16, 16, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RGB_FLOAT32, - "MESA_FORMAT_RGB_FLOAT32", - GL_RGB, - GL_FLOAT, - 32, 32, 32, 0, - 0, 0, 0, 0, 0, - 1, 1, 12 - }, - { - MESA_FORMAT_RGB_FLOAT16, - "MESA_FORMAT_RGB_FLOAT16", - GL_RGB, - GL_FLOAT, - 16, 16, 16, 0, - 0, 0, 0, 0, 0, - 1, 1, 6 - }, - { - MESA_FORMAT_ALPHA_FLOAT32, - "MESA_FORMAT_ALPHA_FLOAT32", - GL_ALPHA, - GL_FLOAT, - 0, 0, 0, 32, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_ALPHA_FLOAT16, - "MESA_FORMAT_ALPHA_FLOAT16", - GL_ALPHA, - GL_FLOAT, - 0, 0, 0, 16, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_LUMINANCE_FLOAT32, - "MESA_FORMAT_LUMINANCE_FLOAT32", - GL_ALPHA, - GL_FLOAT, - 0, 0, 0, 0, - 32, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_LUMINANCE_FLOAT16, - "MESA_FORMAT_LUMINANCE_FLOAT16", - GL_ALPHA, - GL_FLOAT, - 0, 0, 0, 0, - 16, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, - "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32", - GL_LUMINANCE_ALPHA, - GL_FLOAT, - 0, 0, 0, 32, - 32, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, - "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16", - GL_LUMINANCE_ALPHA, - GL_FLOAT, - 0, 0, 0, 16, - 16, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_INTENSITY_FLOAT32, - "MESA_FORMAT_INTENSITY_FLOAT32", - GL_INTENSITY, - GL_FLOAT, - 0, 0, 0, 0, - 0, 32, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_INTENSITY_FLOAT16, - "MESA_FORMAT_INTENSITY_FLOAT16", - GL_INTENSITY, - GL_FLOAT, - 0, 0, 0, 0, - 0, 16, 0, 0, 0, - 1, 1, 2 - }, - - /* unnormalized signed int formats */ - { - MESA_FORMAT_RGBA_INT8, - "MESA_FORMAT_RGBA_INT8", - GL_RGBA, - GL_INT, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_RGBA_INT16, - "MESA_FORMAT_RGBA_INT16", - GL_RGBA, - GL_INT, - 16, 16, 16, 16, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RGBA_INT32, - "MESA_FORMAT_RGBA_INT32", - GL_RGBA, - GL_INT, - 32, 32, 32, 32, - 0, 0, 0, 0, 0, - 1, 1, 16 - }, - - /* unnormalized unsigned int formats */ - { - MESA_FORMAT_RGBA_UINT8, - "MESA_FORMAT_RGBA_UINT8", - GL_RGBA, - GL_UNSIGNED_INT, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_RGBA_UINT16, - "MESA_FORMAT_RGBA_UINT16", - GL_RGBA, - GL_UNSIGNED_INT, - 16, 16, 16, 16, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RGBA_UINT32, - "MESA_FORMAT_RGBA_UINT32", - GL_RGBA, - GL_UNSIGNED_INT, - 32, 32, 32, 32, - 0, 0, 0, 0, 0, - 1, 1, 16 - }, - - - { - MESA_FORMAT_DUDV8, - "MESA_FORMAT_DUDV8", - GL_DUDV_ATI, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - - /* Signed 8 bits / channel */ - { - MESA_FORMAT_SIGNED_R8, /* Name */ - "MESA_FORMAT_SIGNED_R8", /* StrName */ - GL_RED, /* BaseFormat */ - GL_SIGNED_NORMALIZED, /* DataType */ - 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */ - 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */ - 1, 1, 1 /* BlockWidth/Height,Bytes */ - }, - { - MESA_FORMAT_SIGNED_RG88, - "MESA_FORMAT_SIGNED_RG88", - GL_RG, - GL_SIGNED_NORMALIZED, - 8, 8, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_RGBX8888, - "MESA_FORMAT_SIGNED_RGBX8888", - GL_RGB, - GL_SIGNED_NORMALIZED, - 8, 8, 8, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 /* 4 bpp, but no alpha */ - }, - { - MESA_FORMAT_SIGNED_RGBA8888, - "MESA_FORMAT_SIGNED_RGBA8888", - GL_RGBA, - GL_SIGNED_NORMALIZED, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_SIGNED_RGBA8888_REV, - "MESA_FORMAT_SIGNED_RGBA8888_REV", - GL_RGBA, - GL_SIGNED_NORMALIZED, - 8, 8, 8, 8, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - - /* Signed 16 bits / channel */ - { - MESA_FORMAT_SIGNED_R_16, - "MESA_FORMAT_SIGNED_R_16", - GL_RED, - GL_SIGNED_NORMALIZED, - 16, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_RG_16, - "MESA_FORMAT_SIGNED_RG_16", - GL_RG, - GL_SIGNED_NORMALIZED, - 16, 16, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_SIGNED_RGB_16, - "MESA_FORMAT_SIGNED_RGB_16", - GL_RGB, - GL_SIGNED_NORMALIZED, - 16, 16, 16, 0, - 0, 0, 0, 0, 0, - 1, 1, 6 - }, - { - MESA_FORMAT_SIGNED_RGBA_16, - "MESA_FORMAT_SIGNED_RGBA_16", - GL_RGBA, - GL_SIGNED_NORMALIZED, - 16, 16, 16, 16, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RGBA_16, - "MESA_FORMAT_RGBA_16", - GL_RGBA, - GL_UNSIGNED_NORMALIZED, - 16, 16, 16, 16, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RED_RGTC1, - "MESA_FORMAT_RED_RGTC1", - GL_RED, - GL_UNSIGNED_NORMALIZED, - 4, 0, 0, 0, - 0, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SIGNED_RED_RGTC1, - "MESA_FORMAT_SIGNED_RED_RGTC1", - GL_RED, - GL_SIGNED_NORMALIZED, - 4, 0, 0, 0, - 0, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_RG_RGTC2, - "MESA_FORMAT_RG_RGTC2", - GL_RG, - GL_UNSIGNED_NORMALIZED, - 4, 4, 0, 0, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SIGNED_RG_RGTC2, - "MESA_FORMAT_SIGNED_RG_RGTC2", - GL_RG, - GL_SIGNED_NORMALIZED, - 4, 4, 0, 0, - 0, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_L_LATC1, - "MESA_FORMAT_L_LATC1", - GL_LUMINANCE, - GL_UNSIGNED_NORMALIZED, - 0, 0, 0, 0, - 4, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SIGNED_L_LATC1, - "MESA_FORMAT_SIGNED_L_LATC1", - GL_LUMINANCE, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 4, 0, 0, 0, 0, - 4, 4, 8 /* 8 bytes per 4x4 block */ - }, - { - MESA_FORMAT_LA_LATC2, - "MESA_FORMAT_LA_LATC2", - GL_LUMINANCE_ALPHA, - GL_UNSIGNED_NORMALIZED, - 0, 0, 0, 4, - 4, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, - { - MESA_FORMAT_SIGNED_LA_LATC2, - "MESA_FORMAT_SIGNED_LA_LATC2", - GL_LUMINANCE_ALPHA, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 4, - 4, 0, 0, 0, 0, - 4, 4, 16 /* 16 bytes per 4x4 block */ - }, -}; - - - -static const struct gl_format_info * -_mesa_get_format_info(gl_format format) -{ - const struct gl_format_info *info = &format_info[format]; - assert(info->Name == format); - return info; -} - - -/** Return string name of format (for debugging) */ -const char * -_mesa_get_format_name(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - return info->StrName; -} - - - -/** - * Return bytes needed to store a block of pixels in the given format. - * Normally, a block is 1x1 (a single pixel). But for compressed formats - * a block may be 4x4 or 8x4, etc. - */ -GLuint -_mesa_get_format_bytes(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - ASSERT(info->BytesPerBlock); - return info->BytesPerBlock; -} - - -/** - * Return bits per component for the given format. - * \param format one of MESA_FORMAT_x - * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc. - */ -GLint -_mesa_get_format_bits(gl_format format, GLenum pname) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - - switch (pname) { - case GL_RED_BITS: - case GL_TEXTURE_RED_SIZE: - case GL_RENDERBUFFER_RED_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: - return info->RedBits; - case GL_GREEN_BITS: - case GL_TEXTURE_GREEN_SIZE: - case GL_RENDERBUFFER_GREEN_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: - return info->GreenBits; - case GL_BLUE_BITS: - case GL_TEXTURE_BLUE_SIZE: - case GL_RENDERBUFFER_BLUE_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: - return info->BlueBits; - case GL_ALPHA_BITS: - case GL_TEXTURE_ALPHA_SIZE: - case GL_RENDERBUFFER_ALPHA_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: - return info->AlphaBits; - case GL_TEXTURE_INTENSITY_SIZE: - return info->IntensityBits; - case GL_TEXTURE_LUMINANCE_SIZE: - return info->LuminanceBits; - case GL_INDEX_BITS: - case GL_TEXTURE_INDEX_SIZE_EXT: - return info->IndexBits; - case GL_DEPTH_BITS: - case GL_TEXTURE_DEPTH_SIZE_ARB: - case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: - return info->DepthBits; - case GL_STENCIL_BITS: - case GL_TEXTURE_STENCIL_SIZE_EXT: - case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: - return info->StencilBits; - default: - _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()"); - return 0; - } -} - - -/** - * Return the data type (or more specifically, the data representation) - * for the given format. - * The return value will be one of: - * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1] - * GL_SIGNED_NORMALIZED = signed int representing [-1, 1] - * GL_UNSIGNED_INT = an ordinary unsigned integer - * GL_INT = an ordinary signed integer - * GL_FLOAT = an ordinary float - */ -GLenum -_mesa_get_format_datatype(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - return info->DataType; -} - - -/** - * Return the basic format for the given type. The result will be - * one of GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, - * GL_INTENSITY, GL_YCBCR_MESA, GL_COLOR_INDEX, GL_DEPTH_COMPONENT, - * GL_STENCIL_INDEX, GL_DEPTH_STENCIL. - */ -GLenum -_mesa_get_format_base_format(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - return info->BaseFormat; -} - - -/** - * Return the block size (in pixels) for the given format. Normally - * the block size is 1x1. But compressed formats will have block sizes - * of 4x4 or 8x4 pixels, etc. - * \param bw returns block width in pixels - * \param bh returns block height in pixels - */ -void -_mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - *bw = info->BlockWidth; - *bh = info->BlockHeight; -} - - -/** Is the given format a compressed format? */ -GLboolean -_mesa_is_format_compressed(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - return info->BlockWidth > 1 || info->BlockHeight > 1; -} - - -/** - * Determine if the given format represents a packed depth/stencil buffer. - */ -GLboolean -_mesa_is_format_packed_depth_stencil(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - - return info->BaseFormat == GL_DEPTH_STENCIL; -} - - -/** - * Is the given format a signed/unsigned integer color format? - */ -GLboolean -_mesa_is_format_integer_color(gl_format format) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) && - info->BaseFormat != GL_DEPTH_COMPONENT && - info->BaseFormat != GL_DEPTH_STENCIL && - info->BaseFormat != GL_STENCIL_INDEX; -} - - -/** - * Return color encoding for given format. - * \return GL_LINEAR or GL_SRGB - */ -GLenum -_mesa_get_format_color_encoding(gl_format format) -{ - /* XXX this info should be encoded in gl_format_info */ - switch (format) { - case MESA_FORMAT_SRGB8: - case MESA_FORMAT_SRGBA8: - case MESA_FORMAT_SARGB8: - case MESA_FORMAT_SL8: - case MESA_FORMAT_SLA8: - case MESA_FORMAT_SRGB_DXT1: - case MESA_FORMAT_SRGBA_DXT1: - case MESA_FORMAT_SRGBA_DXT3: - case MESA_FORMAT_SRGBA_DXT5: - return GL_SRGB; - default: - return GL_LINEAR; - } -} - - -/** - * For an sRGB format, return the corresponding linear color space format. - * For non-sRGB formats, return the format as-is. - */ -gl_format -_mesa_get_srgb_format_linear(gl_format format) -{ - switch (format) { - case MESA_FORMAT_SRGB8: - format = MESA_FORMAT_RGB888; - break; - case MESA_FORMAT_SRGBA8: - format = MESA_FORMAT_RGBA8888; - break; - case MESA_FORMAT_SARGB8: - format = MESA_FORMAT_ARGB8888; - break; - case MESA_FORMAT_SL8: - format = MESA_FORMAT_L8; - break; - case MESA_FORMAT_SLA8: - format = MESA_FORMAT_AL88; - break; - case MESA_FORMAT_SRGB_DXT1: - format = MESA_FORMAT_RGB_DXT1; - break; - case MESA_FORMAT_SRGBA_DXT1: - format = MESA_FORMAT_RGBA_DXT1; - break; - case MESA_FORMAT_SRGBA_DXT3: - format = MESA_FORMAT_RGBA_DXT3; - break; - case MESA_FORMAT_SRGBA_DXT5: - format = MESA_FORMAT_RGBA_DXT5; - break; - default: - break; - } - return format; -} - - -/** - * Return number of bytes needed to store an image of the given size - * in the given format. - */ -GLuint -_mesa_format_image_size(gl_format format, GLsizei width, - GLsizei height, GLsizei depth) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - /* Strictly speaking, a conditional isn't needed here */ - if (info->BlockWidth > 1 || info->BlockHeight > 1) { - /* compressed format (2D only for now) */ - const GLuint bw = info->BlockWidth, bh = info->BlockHeight; - const GLuint wblocks = (width + bw - 1) / bw; - const GLuint hblocks = (height + bh - 1) / bh; - const GLuint sz = wblocks * hblocks * info->BytesPerBlock; - assert(depth == 1); - return sz; - } - else { - /* non-compressed */ - const GLuint sz = width * height * depth * info->BytesPerBlock; - return sz; - } -} - - -/** - * Same as _mesa_format_image_size() but returns a 64-bit value to - * accomodate very large textures. - */ -uint64_t -_mesa_format_image_size64(gl_format format, GLsizei width, - GLsizei height, GLsizei depth) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - /* Strictly speaking, a conditional isn't needed here */ - if (info->BlockWidth > 1 || info->BlockHeight > 1) { - /* compressed format (2D only for now) */ - const uint64_t bw = info->BlockWidth, bh = info->BlockHeight; - const uint64_t wblocks = (width + bw - 1) / bw; - const uint64_t hblocks = (height + bh - 1) / bh; - const uint64_t sz = wblocks * hblocks * info->BytesPerBlock; - assert(depth == 1); - return sz; - } - else { - /* non-compressed */ - const uint64_t sz = ((uint64_t) width * - (uint64_t) height * - (uint64_t) depth * - info->BytesPerBlock); - return sz; - } -} - - - -GLint -_mesa_format_row_stride(gl_format format, GLsizei width) -{ - const struct gl_format_info *info = _mesa_get_format_info(format); - /* Strictly speaking, a conditional isn't needed here */ - if (info->BlockWidth > 1 || info->BlockHeight > 1) { - /* compressed format */ - const GLuint bw = info->BlockWidth; - const GLuint wblocks = (width + bw - 1) / bw; - const GLint stride = wblocks * info->BytesPerBlock; - return stride; - } - else { - const GLint stride = width * info->BytesPerBlock; - return stride; - } -} - - -/** - * Debug/test: check that all formats are handled in the - * _mesa_format_to_type_and_comps() function. When new pixel formats - * are added to Mesa, that function needs to be updated. - * This is a no-op after the first call. - */ -static void -check_format_to_type_and_comps(void) -{ - gl_format f; - - for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) { - GLenum datatype = 0; - GLuint comps = 0; - /* This function will emit a problem/warning if the format is - * not handled. - */ - _mesa_format_to_type_and_comps(f, &datatype, &comps); - } -} - - -/** - * Do sanity checking of the format info table. - */ -void -_mesa_test_formats(void) -{ - GLuint i; - - assert(Elements(format_info) == MESA_FORMAT_COUNT); - - for (i = 0; i < MESA_FORMAT_COUNT; i++) { - const struct gl_format_info *info = _mesa_get_format_info(i); - assert(info); - - assert(info->Name == i); - - if (info->Name == MESA_FORMAT_NONE) - continue; - - if (info->BlockWidth == 1 && info->BlockHeight == 1) { - if (info->RedBits > 0) { - GLuint t = info->RedBits + info->GreenBits - + info->BlueBits + info->AlphaBits; - assert(t / 8 <= info->BytesPerBlock); - (void) t; - } - } - - assert(info->DataType == GL_UNSIGNED_NORMALIZED || - info->DataType == GL_SIGNED_NORMALIZED || - info->DataType == GL_UNSIGNED_INT || - info->DataType == GL_INT || - info->DataType == GL_FLOAT); - - if (info->BaseFormat == GL_RGB) { - assert(info->RedBits > 0); - assert(info->GreenBits > 0); - assert(info->BlueBits > 0); - assert(info->AlphaBits == 0); - assert(info->LuminanceBits == 0); - assert(info->IntensityBits == 0); - } - else if (info->BaseFormat == GL_RGBA) { - assert(info->RedBits > 0); - assert(info->GreenBits > 0); - assert(info->BlueBits > 0); - assert(info->AlphaBits > 0); - assert(info->LuminanceBits == 0); - assert(info->IntensityBits == 0); - } - else if (info->BaseFormat == GL_RG) { - assert(info->RedBits > 0); - assert(info->GreenBits > 0); - assert(info->BlueBits == 0); - assert(info->AlphaBits == 0); - assert(info->LuminanceBits == 0); - assert(info->IntensityBits == 0); - } - else if (info->BaseFormat == GL_RED) { - assert(info->RedBits > 0); - assert(info->GreenBits == 0); - assert(info->BlueBits == 0); - assert(info->AlphaBits == 0); - assert(info->LuminanceBits == 0); - assert(info->IntensityBits == 0); - } - else if (info->BaseFormat == GL_LUMINANCE) { - assert(info->RedBits == 0); - assert(info->GreenBits == 0); - assert(info->BlueBits == 0); - assert(info->AlphaBits == 0); - assert(info->LuminanceBits > 0); - assert(info->IntensityBits == 0); - } - else if (info->BaseFormat == GL_INTENSITY) { - assert(info->RedBits == 0); - assert(info->GreenBits == 0); - assert(info->BlueBits == 0); - assert(info->AlphaBits == 0); - assert(info->LuminanceBits == 0); - assert(info->IntensityBits > 0); - } - } - - check_format_to_type_and_comps(); -} - - - -/** - * Return datatype and number of components per texel for the given gl_format. - * Only used for mipmap generation code. - */ -void -_mesa_format_to_type_and_comps(gl_format format, - GLenum *datatype, GLuint *comps) -{ - switch (format) { - case MESA_FORMAT_RGBA8888: - case MESA_FORMAT_RGBA8888_REV: - case MESA_FORMAT_ARGB8888: - case MESA_FORMAT_ARGB8888_REV: - case MESA_FORMAT_XRGB8888: - case MESA_FORMAT_XRGB8888_REV: - *datatype = GL_UNSIGNED_BYTE; - *comps = 4; - return; - case MESA_FORMAT_RGB888: - case MESA_FORMAT_BGR888: - *datatype = GL_UNSIGNED_BYTE; - *comps = 3; - return; - case MESA_FORMAT_RGB565: - case MESA_FORMAT_RGB565_REV: - *datatype = GL_UNSIGNED_SHORT_5_6_5; - *comps = 3; - return; - - case MESA_FORMAT_ARGB4444: - case MESA_FORMAT_ARGB4444_REV: - *datatype = GL_UNSIGNED_SHORT_4_4_4_4; - *comps = 4; - return; - - case MESA_FORMAT_ARGB1555: - case MESA_FORMAT_ARGB1555_REV: - *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV; - *comps = 4; - return; - - case MESA_FORMAT_ARGB2101010: - *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; - *comps = 4; - return; - - case MESA_FORMAT_RGBA5551: - *datatype = GL_UNSIGNED_SHORT_5_5_5_1; - *comps = 4; - return; - - case MESA_FORMAT_AL44: - *datatype = MESA_UNSIGNED_BYTE_4_4; - *comps = 2; - return; - - case MESA_FORMAT_AL88: - case MESA_FORMAT_AL88_REV: - case MESA_FORMAT_RG88: - case MESA_FORMAT_RG88_REV: - *datatype = GL_UNSIGNED_BYTE; - *comps = 2; - return; - - case MESA_FORMAT_AL1616: - case MESA_FORMAT_AL1616_REV: - case MESA_FORMAT_RG1616: - case MESA_FORMAT_RG1616_REV: - *datatype = GL_UNSIGNED_SHORT; - *comps = 2; - return; - - case MESA_FORMAT_R16: - case MESA_FORMAT_A16: - case MESA_FORMAT_L16: - case MESA_FORMAT_I16: - *datatype = GL_UNSIGNED_SHORT; - *comps = 1; - return; - - case MESA_FORMAT_RGB332: - *datatype = GL_UNSIGNED_BYTE_3_3_2; - *comps = 3; - return; - - case MESA_FORMAT_A8: - case MESA_FORMAT_L8: - case MESA_FORMAT_I8: - case MESA_FORMAT_CI8: - case MESA_FORMAT_R8: - case MESA_FORMAT_S8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 1; - return; - - case MESA_FORMAT_YCBCR: - case MESA_FORMAT_YCBCR_REV: - *datatype = GL_UNSIGNED_SHORT; - *comps = 2; - return; - - case MESA_FORMAT_Z24_S8: - *datatype = GL_UNSIGNED_INT; - *comps = 1; /* XXX OK? */ - return; - - case MESA_FORMAT_S8_Z24: - *datatype = GL_UNSIGNED_INT; - *comps = 1; /* XXX OK? */ - return; - - case MESA_FORMAT_Z16: - *datatype = GL_UNSIGNED_SHORT; - *comps = 1; - return; - - case MESA_FORMAT_X8_Z24: - *datatype = GL_UNSIGNED_INT; - *comps = 1; - return; - - case MESA_FORMAT_Z24_X8: - *datatype = GL_UNSIGNED_INT; - *comps = 1; - return; - - case MESA_FORMAT_Z32: - *datatype = GL_UNSIGNED_INT; - *comps = 1; - return; - - case MESA_FORMAT_DUDV8: - *datatype = GL_BYTE; - *comps = 2; - return; - - case MESA_FORMAT_SIGNED_R8: - *datatype = GL_BYTE; - *comps = 1; - return; - case MESA_FORMAT_SIGNED_RG88: - *datatype = GL_BYTE; - *comps = 2; - return; - case MESA_FORMAT_SIGNED_RGBA8888: - case MESA_FORMAT_SIGNED_RGBA8888_REV: - case MESA_FORMAT_SIGNED_RGBX8888: - *datatype = GL_BYTE; - *comps = 4; - return; - - case MESA_FORMAT_RGBA_16: - *datatype = GL_UNSIGNED_SHORT; - *comps = 4; - return; - - case MESA_FORMAT_SIGNED_R_16: - *datatype = GL_SHORT; - *comps = 1; - return; - case MESA_FORMAT_SIGNED_RG_16: - *datatype = GL_SHORT; - *comps = 2; - return; - case MESA_FORMAT_SIGNED_RGB_16: - *datatype = GL_SHORT; - *comps = 3; - return; - case MESA_FORMAT_SIGNED_RGBA_16: - *datatype = GL_SHORT; - *comps = 4; - return; - -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 3; - return; - case MESA_FORMAT_SRGBA8: - case MESA_FORMAT_SARGB8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 4; - return; - case MESA_FORMAT_SL8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 1; - return; - case MESA_FORMAT_SLA8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 2; - return; -#endif - -#if FEATURE_texture_fxt1 - case MESA_FORMAT_RGB_FXT1: - case MESA_FORMAT_RGBA_FXT1: -#endif -#if FEATURE_texture_s3tc - case MESA_FORMAT_RGB_DXT1: - case MESA_FORMAT_RGBA_DXT1: - case MESA_FORMAT_RGBA_DXT3: - case MESA_FORMAT_RGBA_DXT5: -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB_DXT1: - case MESA_FORMAT_SRGBA_DXT1: - case MESA_FORMAT_SRGBA_DXT3: - case MESA_FORMAT_SRGBA_DXT5: -#endif -#endif - case MESA_FORMAT_RED_RGTC1: - case MESA_FORMAT_SIGNED_RED_RGTC1: - case MESA_FORMAT_RG_RGTC2: - case MESA_FORMAT_SIGNED_RG_RGTC2: - case MESA_FORMAT_L_LATC1: - case MESA_FORMAT_SIGNED_L_LATC1: - case MESA_FORMAT_LA_LATC2: - case MESA_FORMAT_SIGNED_LA_LATC2: - /* XXX generate error instead? */ - *datatype = GL_UNSIGNED_BYTE; - *comps = 0; - return; - - case MESA_FORMAT_RGBA_FLOAT32: - *datatype = GL_FLOAT; - *comps = 4; - return; - case MESA_FORMAT_RGBA_FLOAT16: - *datatype = GL_HALF_FLOAT_ARB; - *comps = 4; - return; - case MESA_FORMAT_RGB_FLOAT32: - *datatype = GL_FLOAT; - *comps = 3; - return; - case MESA_FORMAT_RGB_FLOAT16: - *datatype = GL_HALF_FLOAT_ARB; - *comps = 3; - return; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32: - *datatype = GL_FLOAT; - *comps = 2; - return; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: - *datatype = GL_HALF_FLOAT_ARB; - *comps = 2; - return; - case MESA_FORMAT_ALPHA_FLOAT32: - case MESA_FORMAT_LUMINANCE_FLOAT32: - case MESA_FORMAT_INTENSITY_FLOAT32: - *datatype = GL_FLOAT; - *comps = 1; - return; - case MESA_FORMAT_ALPHA_FLOAT16: - case MESA_FORMAT_LUMINANCE_FLOAT16: - case MESA_FORMAT_INTENSITY_FLOAT16: - *datatype = GL_HALF_FLOAT_ARB; - *comps = 1; - return; - - case MESA_FORMAT_RGBA_INT8: - *datatype = GL_BYTE; - *comps = 4; - return; - case MESA_FORMAT_RGBA_INT16: - *datatype = GL_SHORT; - *comps = 4; - return; - case MESA_FORMAT_RGBA_INT32: - *datatype = GL_INT; - *comps = 4; - return; - - /** - * \name Non-normalized unsigned integer formats. - */ - case MESA_FORMAT_RGBA_UINT8: - *datatype = GL_UNSIGNED_BYTE; - *comps = 4; - return; - case MESA_FORMAT_RGBA_UINT16: - *datatype = GL_UNSIGNED_SHORT; - *comps = 4; - return; - case MESA_FORMAT_RGBA_UINT32: - *datatype = GL_UNSIGNED_INT; - *comps = 4; - return; - - case MESA_FORMAT_COUNT: - assert(0); - return; - - case MESA_FORMAT_NONE: - /* For debug builds, warn if any formats are not handled */ -#ifdef DEBUG - default: -#endif - _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps", - _mesa_get_format_name(format)); - *datatype = 0; - *comps = 1; - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008-2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "imports.h"
+#include "formats.h"
+#include "mfeatures.h"
+
+
+/**
+ * Information about texture formats.
+ */
+struct gl_format_info
+{
+ gl_format Name;
+
+ /** text name for debugging */
+ const char *StrName;
+
+ /**
+ * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
+ * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
+ * GL_COLOR_INDEX, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX,
+ * GL_DEPTH_STENCIL, GL_DUDV_ATI.
+ */
+ GLenum BaseFormat;
+
+ /**
+ * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALED,
+ * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
+ */
+ GLenum DataType;
+
+ GLubyte RedBits;
+ GLubyte GreenBits;
+ GLubyte BlueBits;
+ GLubyte AlphaBits;
+ GLubyte LuminanceBits;
+ GLubyte IntensityBits;
+ GLubyte IndexBits;
+ GLubyte DepthBits;
+ GLubyte StencilBits;
+
+ /**
+ * To describe compressed formats. If not compressed, Width=Height=1.
+ */
+ GLubyte BlockWidth, BlockHeight;
+ GLubyte BytesPerBlock;
+};
+
+
+/**
+ * Info about each format.
+ * These must be in the same order as the MESA_FORMAT_* enums so that
+ * we can do lookups without searching.
+ */
+static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
+{
+ {
+ MESA_FORMAT_NONE, /* Name */
+ "MESA_FORMAT_NONE", /* StrName */
+ GL_NONE, /* BaseFormat */
+ GL_NONE, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 0, 0, 0 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGBA8888, /* Name */
+ "MESA_FORMAT_RGBA8888", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGBA8888_REV, /* Name */
+ "MESA_FORMAT_RGBA8888_REV", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB8888, /* Name */
+ "MESA_FORMAT_ARGB8888", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB8888_REV, /* Name */
+ "MESA_FORMAT_ARGB8888_REV", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_XRGB8888, /* Name */
+ "MESA_FORMAT_XRGB8888", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_XRGB8888_REV, /* Name */
+ "MESA_FORMAT_XRGB8888_REV", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGB888, /* Name */
+ "MESA_FORMAT_RGB888", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 3 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_BGR888, /* Name */
+ "MESA_FORMAT_BGR888", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 3 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGB565, /* Name */
+ "MESA_FORMAT_RGB565", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGB565_REV, /* Name */
+ "MESA_FORMAT_RGB565_REV", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB4444, /* Name */
+ "MESA_FORMAT_ARGB4444", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB4444_REV, /* Name */
+ "MESA_FORMAT_ARGB4444_REV", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGBA5551, /* Name */
+ "MESA_FORMAT_RGBA5551", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB1555, /* Name */
+ "MESA_FORMAT_ARGB1555", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_ARGB1555_REV, /* Name */
+ "MESA_FORMAT_ARGB1555_REV", /* StrName */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_AL44, /* Name */
+ "MESA_FORMAT_AL44", /* StrName */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
+ 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_AL88, /* Name */
+ "MESA_FORMAT_AL88", /* StrName */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
+ 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_AL88_REV, /* Name */
+ "MESA_FORMAT_AL88_REV", /* StrName */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
+ 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_AL1616, /* Name */
+ "MESA_FORMAT_AL1616", /* StrName */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
+ 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_AL1616_REV, /* Name */
+ "MESA_FORMAT_AL1616_REV", /* StrName */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
+ 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_RGB332, /* Name */
+ "MESA_FORMAT_RGB332", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_A8, /* Name */
+ "MESA_FORMAT_A8", /* StrName */
+ GL_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_A16, /* Name */
+ "MESA_FORMAT_A16", /* StrName */
+ GL_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_L8, /* Name */
+ "MESA_FORMAT_L8", /* StrName */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_L16, /* Name */
+ "MESA_FORMAT_L16", /* StrName */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_I8, /* Name */
+ "MESA_FORMAT_I8", /* StrName */
+ GL_INTENSITY, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_I16, /* Name */
+ "MESA_FORMAT_I16", /* StrName */
+ GL_INTENSITY, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_CI8, /* Name */
+ "MESA_FORMAT_CI8", /* StrName */
+ GL_COLOR_INDEX, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 8, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_YCBCR, /* Name */
+ "MESA_FORMAT_YCBCR", /* StrName */
+ GL_YCBCR_MESA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_YCBCR_REV, /* Name */
+ "MESA_FORMAT_YCBCR_REV", /* StrName */
+ GL_YCBCR_MESA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_R8,
+ "MESA_FORMAT_R8",
+ GL_RED,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 1
+ },
+ {
+ MESA_FORMAT_RG88,
+ "MESA_FORMAT_RG88",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_RG88_REV,
+ "MESA_FORMAT_RG88_REV",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_R16,
+ "MESA_FORMAT_R16",
+ GL_RED,
+ GL_UNSIGNED_NORMALIZED,
+ 16, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_RG1616,
+ "MESA_FORMAT_RG1616",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 16, 16, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_RG1616_REV,
+ "MESA_FORMAT_RG1616_REV",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 16, 16, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_ARGB2101010,
+ "MESA_FORMAT_ARGB2101010",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 10, 10, 10, 2,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_Z24_S8, /* Name */
+ "MESA_FORMAT_Z24_S8", /* StrName */
+ GL_DEPTH_STENCIL, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_S8_Z24, /* Name */
+ "MESA_FORMAT_S8_Z24", /* StrName */
+ GL_DEPTH_STENCIL, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_Z16, /* Name */
+ "MESA_FORMAT_Z16", /* StrName */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 2 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_X8_Z24, /* Name */
+ "MESA_FORMAT_X8_Z24", /* StrName */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_Z24_X8, /* Name */
+ "MESA_FORMAT_Z24_X8", /* StrName */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_Z32, /* Name */
+ "MESA_FORMAT_Z32", /* StrName */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 4 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_S8, /* Name */
+ "MESA_FORMAT_S8", /* StrName */
+ GL_STENCIL_INDEX, /* BaseFormat */
+ GL_UNSIGNED_INT, /* DataType */
+ 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_SRGB8,
+ "MESA_FORMAT_SRGB8",
+ GL_RGB,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 8, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 3
+ },
+ {
+ MESA_FORMAT_SRGBA8,
+ "MESA_FORMAT_SRGBA8",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_SARGB8,
+ "MESA_FORMAT_SARGB8",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_SL8,
+ "MESA_FORMAT_SL8",
+ GL_LUMINANCE,
+ GL_UNSIGNED_NORMALIZED,
+ 0, 0, 0, 0,
+ 8, 0, 0, 0, 0,
+ 1, 1, 1
+ },
+ {
+ MESA_FORMAT_SLA8,
+ "MESA_FORMAT_SLA8",
+ GL_LUMINANCE_ALPHA,
+ GL_UNSIGNED_NORMALIZED,
+ 0, 0, 0, 8,
+ 8, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_SRGB_DXT1, /* Name */
+ "MESA_FORMAT_SRGB_DXT1", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT1,
+ "MESA_FORMAT_SRGBA_DXT1",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT3,
+ "MESA_FORMAT_SRGBA_DXT3",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT5,
+ "MESA_FORMAT_SRGBA_DXT5",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+
+ {
+ MESA_FORMAT_RGB_FXT1,
+ "MESA_FORMAT_RGB_FXT1",
+ GL_RGB,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 0, /* approx Red/Green/BlueBits */
+ 0, 0, 0, 0, 0,
+ 8, 4, 16 /* 16 bytes per 8x4 block */
+ },
+ {
+ MESA_FORMAT_RGBA_FXT1,
+ "MESA_FORMAT_RGBA_FXT1",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0,
+ 8, 4, 16 /* 16 bytes per 8x4 block */
+ },
+
+ {
+ MESA_FORMAT_RGB_DXT1, /* Name */
+ "MESA_FORMAT_RGB_DXT1", /* StrName */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED, /* DataType */
+ 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RGBA_DXT1,
+ "MESA_FORMAT_RGBA_DXT1",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RGBA_DXT3,
+ "MESA_FORMAT_RGBA_DXT3",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RGBA_DXT5,
+ "MESA_FORMAT_RGBA_DXT5",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 4, 4,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RGBA_FLOAT32,
+ "MESA_FORMAT_RGBA_FLOAT32",
+ GL_RGBA,
+ GL_FLOAT,
+ 32, 32, 32, 32,
+ 0, 0, 0, 0, 0,
+ 1, 1, 16
+ },
+ {
+ MESA_FORMAT_RGBA_FLOAT16,
+ "MESA_FORMAT_RGBA_FLOAT16",
+ GL_RGBA,
+ GL_FLOAT,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_RGB_FLOAT32,
+ "MESA_FORMAT_RGB_FLOAT32",
+ GL_RGB,
+ GL_FLOAT,
+ 32, 32, 32, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 12
+ },
+ {
+ MESA_FORMAT_RGB_FLOAT16,
+ "MESA_FORMAT_RGB_FLOAT16",
+ GL_RGB,
+ GL_FLOAT,
+ 16, 16, 16, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 6
+ },
+ {
+ MESA_FORMAT_ALPHA_FLOAT32,
+ "MESA_FORMAT_ALPHA_FLOAT32",
+ GL_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 32,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_ALPHA_FLOAT16,
+ "MESA_FORMAT_ALPHA_FLOAT16",
+ GL_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_LUMINANCE_FLOAT32,
+ "MESA_FORMAT_LUMINANCE_FLOAT32",
+ GL_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 0,
+ 32, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_LUMINANCE_FLOAT16,
+ "MESA_FORMAT_LUMINANCE_FLOAT16",
+ GL_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 0,
+ 16, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
+ "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
+ GL_LUMINANCE_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 32,
+ 32, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
+ "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
+ GL_LUMINANCE_ALPHA,
+ GL_FLOAT,
+ 0, 0, 0, 16,
+ 16, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_INTENSITY_FLOAT32,
+ "MESA_FORMAT_INTENSITY_FLOAT32",
+ GL_INTENSITY,
+ GL_FLOAT,
+ 0, 0, 0, 0,
+ 0, 32, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_INTENSITY_FLOAT16,
+ "MESA_FORMAT_INTENSITY_FLOAT16",
+ GL_INTENSITY,
+ GL_FLOAT,
+ 0, 0, 0, 0,
+ 0, 16, 0, 0, 0,
+ 1, 1, 2
+ },
+
+ /* unnormalized signed int formats */
+ {
+ MESA_FORMAT_RGBA_INT8,
+ "MESA_FORMAT_RGBA_INT8",
+ GL_RGBA,
+ GL_INT,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_RGBA_INT16,
+ "MESA_FORMAT_RGBA_INT16",
+ GL_RGBA,
+ GL_INT,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_RGBA_INT32,
+ "MESA_FORMAT_RGBA_INT32",
+ GL_RGBA,
+ GL_INT,
+ 32, 32, 32, 32,
+ 0, 0, 0, 0, 0,
+ 1, 1, 16
+ },
+
+ /* unnormalized unsigned int formats */
+ {
+ MESA_FORMAT_RGBA_UINT8,
+ "MESA_FORMAT_RGBA_UINT8",
+ GL_RGBA,
+ GL_UNSIGNED_INT,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_RGBA_UINT16,
+ "MESA_FORMAT_RGBA_UINT16",
+ GL_RGBA,
+ GL_UNSIGNED_INT,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_RGBA_UINT32,
+ "MESA_FORMAT_RGBA_UINT32",
+ GL_RGBA,
+ GL_UNSIGNED_INT,
+ 32, 32, 32, 32,
+ 0, 0, 0, 0, 0,
+ 1, 1, 16
+ },
+
+
+ {
+ MESA_FORMAT_DUDV8,
+ "MESA_FORMAT_DUDV8",
+ GL_DUDV_ATI,
+ GL_SIGNED_NORMALIZED,
+ 0, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+
+ /* Signed 8 bits / channel */
+ {
+ MESA_FORMAT_SIGNED_R8, /* Name */
+ "MESA_FORMAT_SIGNED_R8", /* StrName */
+ GL_RED, /* BaseFormat */
+ GL_SIGNED_NORMALIZED, /* DataType */
+ 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
+ 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
+ 1, 1, 1 /* BlockWidth/Height,Bytes */
+ },
+ {
+ MESA_FORMAT_SIGNED_RG88,
+ "MESA_FORMAT_SIGNED_RG88",
+ GL_RG,
+ GL_SIGNED_NORMALIZED,
+ 8, 8, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBX8888,
+ "MESA_FORMAT_SIGNED_RGBX8888",
+ GL_RGB,
+ GL_SIGNED_NORMALIZED,
+ 8, 8, 8, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4 /* 4 bpp, but no alpha */
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA8888,
+ "MESA_FORMAT_SIGNED_RGBA8888",
+ GL_RGBA,
+ GL_SIGNED_NORMALIZED,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA8888_REV,
+ "MESA_FORMAT_SIGNED_RGBA8888_REV",
+ GL_RGBA,
+ GL_SIGNED_NORMALIZED,
+ 8, 8, 8, 8,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+
+ /* Signed 16 bits / channel */
+ {
+ MESA_FORMAT_SIGNED_R_16,
+ "MESA_FORMAT_SIGNED_R_16",
+ GL_RED,
+ GL_SIGNED_NORMALIZED,
+ 16, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 2
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_16,
+ "MESA_FORMAT_SIGNED_RG_16",
+ GL_RG,
+ GL_SIGNED_NORMALIZED,
+ 16, 16, 0, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 4
+ },
+ {
+ MESA_FORMAT_SIGNED_RGB_16,
+ "MESA_FORMAT_SIGNED_RGB_16",
+ GL_RGB,
+ GL_SIGNED_NORMALIZED,
+ 16, 16, 16, 0,
+ 0, 0, 0, 0, 0,
+ 1, 1, 6
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA_16,
+ "MESA_FORMAT_SIGNED_RGBA_16",
+ GL_RGBA,
+ GL_SIGNED_NORMALIZED,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_RGBA_16,
+ "MESA_FORMAT_RGBA_16",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
+ },
+ {
+ MESA_FORMAT_RED_RGTC1,
+ "MESA_FORMAT_RED_RGTC1",
+ GL_RED,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ "MESA_FORMAT_SIGNED_RED_RGTC1",
+ GL_RED,
+ GL_SIGNED_NORMALIZED,
+ 4, 0, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_RG_RGTC2,
+ "MESA_FORMAT_RG_RGTC2",
+ GL_RG,
+ GL_UNSIGNED_NORMALIZED,
+ 4, 4, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ "MESA_FORMAT_SIGNED_RG_RGTC2",
+ GL_RG,
+ GL_SIGNED_NORMALIZED,
+ 4, 4, 0, 0,
+ 0, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_L_LATC1,
+ "MESA_FORMAT_L_LATC1",
+ GL_LUMINANCE,
+ GL_UNSIGNED_NORMALIZED,
+ 0, 0, 0, 0,
+ 4, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_L_LATC1,
+ "MESA_FORMAT_SIGNED_L_LATC1",
+ GL_LUMINANCE,
+ GL_SIGNED_NORMALIZED,
+ 0, 0, 0, 0,
+ 4, 0, 0, 0, 0,
+ 4, 4, 8 /* 8 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_LA_LATC2,
+ "MESA_FORMAT_LA_LATC2",
+ GL_LUMINANCE_ALPHA,
+ GL_UNSIGNED_NORMALIZED,
+ 0, 0, 0, 4,
+ 4, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+ {
+ MESA_FORMAT_SIGNED_LA_LATC2,
+ "MESA_FORMAT_SIGNED_LA_LATC2",
+ GL_LUMINANCE_ALPHA,
+ GL_SIGNED_NORMALIZED,
+ 0, 0, 0, 4,
+ 4, 0, 0, 0, 0,
+ 4, 4, 16 /* 16 bytes per 4x4 block */
+ },
+};
+
+
+
+static const struct gl_format_info *
+_mesa_get_format_info(gl_format format)
+{
+ const struct gl_format_info *info = &format_info[format];
+ assert(info->Name == format);
+ return info;
+}
+
+
+/** Return string name of format (for debugging) */
+const char *
+_mesa_get_format_name(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return info->StrName;
+}
+
+
+
+/**
+ * Return bytes needed to store a block of pixels in the given format.
+ * Normally, a block is 1x1 (a single pixel). But for compressed formats
+ * a block may be 4x4 or 8x4, etc.
+ */
+GLuint
+_mesa_get_format_bytes(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ ASSERT(info->BytesPerBlock);
+ return info->BytesPerBlock;
+}
+
+
+/**
+ * Return bits per component for the given format.
+ * \param format one of MESA_FORMAT_x
+ * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
+ */
+GLint
+_mesa_get_format_bits(gl_format format, GLenum pname)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+
+ switch (pname) {
+ case GL_RED_BITS:
+ case GL_TEXTURE_RED_SIZE:
+ case GL_RENDERBUFFER_RED_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+ return info->RedBits;
+ case GL_GREEN_BITS:
+ case GL_TEXTURE_GREEN_SIZE:
+ case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+ return info->GreenBits;
+ case GL_BLUE_BITS:
+ case GL_TEXTURE_BLUE_SIZE:
+ case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+ return info->BlueBits;
+ case GL_ALPHA_BITS:
+ case GL_TEXTURE_ALPHA_SIZE:
+ case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+ return info->AlphaBits;
+ case GL_TEXTURE_INTENSITY_SIZE:
+ return info->IntensityBits;
+ case GL_TEXTURE_LUMINANCE_SIZE:
+ return info->LuminanceBits;
+ case GL_INDEX_BITS:
+ case GL_TEXTURE_INDEX_SIZE_EXT:
+ return info->IndexBits;
+ case GL_DEPTH_BITS:
+ case GL_TEXTURE_DEPTH_SIZE_ARB:
+ case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+ return info->DepthBits;
+ case GL_STENCIL_BITS:
+ case GL_TEXTURE_STENCIL_SIZE_EXT:
+ case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+ case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+ return info->StencilBits;
+ default:
+ _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
+ return 0;
+ }
+}
+
+
+/**
+ * Return the data type (or more specifically, the data representation)
+ * for the given format.
+ * The return value will be one of:
+ * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
+ * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
+ * GL_UNSIGNED_INT = an ordinary unsigned integer
+ * GL_INT = an ordinary signed integer
+ * GL_FLOAT = an ordinary float
+ */
+GLenum
+_mesa_get_format_datatype(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return info->DataType;
+}
+
+
+/**
+ * Return the basic format for the given type. The result will be
+ * one of GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA,
+ * GL_INTENSITY, GL_YCBCR_MESA, GL_COLOR_INDEX, GL_DEPTH_COMPONENT,
+ * GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
+ */
+GLenum
+_mesa_get_format_base_format(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return info->BaseFormat;
+}
+
+
+/**
+ * Return the block size (in pixels) for the given format. Normally
+ * the block size is 1x1. But compressed formats will have block sizes
+ * of 4x4 or 8x4 pixels, etc.
+ * \param bw returns block width in pixels
+ * \param bh returns block height in pixels
+ */
+void
+_mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ *bw = info->BlockWidth;
+ *bh = info->BlockHeight;
+}
+
+
+/** Is the given format a compressed format? */
+GLboolean
+_mesa_is_format_compressed(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return info->BlockWidth > 1 || info->BlockHeight > 1;
+}
+
+
+/**
+ * Determine if the given format represents a packed depth/stencil buffer.
+ */
+GLboolean
+_mesa_is_format_packed_depth_stencil(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+
+ return info->BaseFormat == GL_DEPTH_STENCIL;
+}
+
+
+/**
+ * Is the given format a signed/unsigned integer color format?
+ */
+GLboolean
+_mesa_is_format_integer_color(gl_format format)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
+ info->BaseFormat != GL_DEPTH_COMPONENT &&
+ info->BaseFormat != GL_DEPTH_STENCIL &&
+ info->BaseFormat != GL_STENCIL_INDEX;
+}
+
+
+/**
+ * Return color encoding for given format.
+ * \return GL_LINEAR or GL_SRGB
+ */
+GLenum
+_mesa_get_format_color_encoding(gl_format format)
+{
+ /* XXX this info should be encoded in gl_format_info */
+ switch (format) {
+ case MESA_FORMAT_SRGB8:
+ case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
+ case MESA_FORMAT_SL8:
+ case MESA_FORMAT_SLA8:
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+ return GL_SRGB;
+ default:
+ return GL_LINEAR;
+ }
+}
+
+
+/**
+ * For an sRGB format, return the corresponding linear color space format.
+ * For non-sRGB formats, return the format as-is.
+ */
+gl_format
+_mesa_get_srgb_format_linear(gl_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_SRGB8:
+ format = MESA_FORMAT_RGB888;
+ break;
+ case MESA_FORMAT_SRGBA8:
+ format = MESA_FORMAT_RGBA8888;
+ break;
+ case MESA_FORMAT_SARGB8:
+ format = MESA_FORMAT_ARGB8888;
+ break;
+ case MESA_FORMAT_SL8:
+ format = MESA_FORMAT_L8;
+ break;
+ case MESA_FORMAT_SLA8:
+ format = MESA_FORMAT_AL88;
+ break;
+ case MESA_FORMAT_SRGB_DXT1:
+ format = MESA_FORMAT_RGB_DXT1;
+ break;
+ case MESA_FORMAT_SRGBA_DXT1:
+ format = MESA_FORMAT_RGBA_DXT1;
+ break;
+ case MESA_FORMAT_SRGBA_DXT3:
+ format = MESA_FORMAT_RGBA_DXT3;
+ break;
+ case MESA_FORMAT_SRGBA_DXT5:
+ format = MESA_FORMAT_RGBA_DXT5;
+ break;
+ default:
+ break;
+ }
+ return format;
+}
+
+
+/**
+ * Return number of bytes needed to store an image of the given size
+ * in the given format.
+ */
+GLuint
+_mesa_format_image_size(gl_format format, GLsizei width,
+ GLsizei height, GLsizei depth)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ /* Strictly speaking, a conditional isn't needed here */
+ if (info->BlockWidth > 1 || info->BlockHeight > 1) {
+ /* compressed format (2D only for now) */
+ const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
+ const GLuint wblocks = (width + bw - 1) / bw;
+ const GLuint hblocks = (height + bh - 1) / bh;
+ const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
+ assert(depth == 1);
+ return sz;
+ }
+ else {
+ /* non-compressed */
+ const GLuint sz = width * height * depth * info->BytesPerBlock;
+ return sz;
+ }
+}
+
+
+/**
+ * Same as _mesa_format_image_size() but returns a 64-bit value to
+ * accomodate very large textures.
+ */
+uint64_t
+_mesa_format_image_size64(gl_format format, GLsizei width,
+ GLsizei height, GLsizei depth)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ /* Strictly speaking, a conditional isn't needed here */
+ if (info->BlockWidth > 1 || info->BlockHeight > 1) {
+ /* compressed format (2D only for now) */
+ const uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
+ const uint64_t wblocks = (width + bw - 1) / bw;
+ const uint64_t hblocks = (height + bh - 1) / bh;
+ const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
+ assert(depth == 1);
+ return sz;
+ }
+ else {
+ /* non-compressed */
+ const uint64_t sz = ((uint64_t) width *
+ (uint64_t) height *
+ (uint64_t) depth *
+ info->BytesPerBlock);
+ return sz;
+ }
+}
+
+
+
+GLint
+_mesa_format_row_stride(gl_format format, GLsizei width)
+{
+ const struct gl_format_info *info = _mesa_get_format_info(format);
+ /* Strictly speaking, a conditional isn't needed here */
+ if (info->BlockWidth > 1 || info->BlockHeight > 1) {
+ /* compressed format */
+ const GLuint bw = info->BlockWidth;
+ const GLuint wblocks = (width + bw - 1) / bw;
+ const GLint stride = wblocks * info->BytesPerBlock;
+ return stride;
+ }
+ else {
+ const GLint stride = width * info->BytesPerBlock;
+ return stride;
+ }
+}
+
+
+/**
+ * Debug/test: check that all formats are handled in the
+ * _mesa_format_to_type_and_comps() function. When new pixel formats
+ * are added to Mesa, that function needs to be updated.
+ * This is a no-op after the first call.
+ */
+static void
+check_format_to_type_and_comps(void)
+{
+ gl_format f;
+
+ for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
+ GLenum datatype = 0;
+ GLuint comps = 0;
+ /* This function will emit a problem/warning if the format is
+ * not handled.
+ */
+ _mesa_format_to_type_and_comps(f, &datatype, &comps);
+ }
+}
+
+
+/**
+ * Do sanity checking of the format info table.
+ */
+void
+_mesa_test_formats(void)
+{
+ GLuint i;
+
+ assert(Elements(format_info) == MESA_FORMAT_COUNT);
+
+ for (i = 0; i < MESA_FORMAT_COUNT; i++) {
+ const struct gl_format_info *info = _mesa_get_format_info(i);
+ assert(info);
+
+ assert(info->Name == i);
+
+ if (info->Name == MESA_FORMAT_NONE)
+ continue;
+
+ if (info->BlockWidth == 1 && info->BlockHeight == 1) {
+ if (info->RedBits > 0) {
+ GLuint t = info->RedBits + info->GreenBits
+ + info->BlueBits + info->AlphaBits;
+ assert(t / 8 <= info->BytesPerBlock);
+ (void) t;
+ }
+ }
+
+ assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
+ info->DataType == GL_SIGNED_NORMALIZED ||
+ info->DataType == GL_UNSIGNED_INT ||
+ info->DataType == GL_INT ||
+ info->DataType == GL_FLOAT);
+
+ if (info->BaseFormat == GL_RGB) {
+ assert(info->RedBits > 0);
+ assert(info->GreenBits > 0);
+ assert(info->BlueBits > 0);
+ assert(info->AlphaBits == 0);
+ assert(info->LuminanceBits == 0);
+ assert(info->IntensityBits == 0);
+ }
+ else if (info->BaseFormat == GL_RGBA) {
+ assert(info->RedBits > 0);
+ assert(info->GreenBits > 0);
+ assert(info->BlueBits > 0);
+ assert(info->AlphaBits > 0);
+ assert(info->LuminanceBits == 0);
+ assert(info->IntensityBits == 0);
+ }
+ else if (info->BaseFormat == GL_RG) {
+ assert(info->RedBits > 0);
+ assert(info->GreenBits > 0);
+ assert(info->BlueBits == 0);
+ assert(info->AlphaBits == 0);
+ assert(info->LuminanceBits == 0);
+ assert(info->IntensityBits == 0);
+ }
+ else if (info->BaseFormat == GL_RED) {
+ assert(info->RedBits > 0);
+ assert(info->GreenBits == 0);
+ assert(info->BlueBits == 0);
+ assert(info->AlphaBits == 0);
+ assert(info->LuminanceBits == 0);
+ assert(info->IntensityBits == 0);
+ }
+ else if (info->BaseFormat == GL_LUMINANCE) {
+ assert(info->RedBits == 0);
+ assert(info->GreenBits == 0);
+ assert(info->BlueBits == 0);
+ assert(info->AlphaBits == 0);
+ assert(info->LuminanceBits > 0);
+ assert(info->IntensityBits == 0);
+ }
+ else if (info->BaseFormat == GL_INTENSITY) {
+ assert(info->RedBits == 0);
+ assert(info->GreenBits == 0);
+ assert(info->BlueBits == 0);
+ assert(info->AlphaBits == 0);
+ assert(info->LuminanceBits == 0);
+ assert(info->IntensityBits > 0);
+ }
+ }
+
+ check_format_to_type_and_comps();
+}
+
+
+
+/**
+ * Return datatype and number of components per texel for the given gl_format.
+ * Only used for mipmap generation code.
+ */
+void
+_mesa_format_to_type_and_comps(gl_format format,
+ GLenum *datatype, GLuint *comps)
+{
+ switch (format) {
+ case MESA_FORMAT_RGBA8888:
+ case MESA_FORMAT_RGBA8888_REV:
+ case MESA_FORMAT_ARGB8888:
+ case MESA_FORMAT_ARGB8888_REV:
+ case MESA_FORMAT_XRGB8888:
+ case MESA_FORMAT_XRGB8888_REV:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB888:
+ case MESA_FORMAT_BGR888:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_RGB565:
+ case MESA_FORMAT_RGB565_REV:
+ *datatype = GL_UNSIGNED_SHORT_5_6_5;
+ *comps = 3;
+ return;
+
+ case MESA_FORMAT_ARGB4444:
+ case MESA_FORMAT_ARGB4444_REV:
+ *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_ARGB1555:
+ case MESA_FORMAT_ARGB1555_REV:
+ *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_ARGB2101010:
+ *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_RGBA5551:
+ *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_AL44:
+ *datatype = MESA_UNSIGNED_BYTE_4_4;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_AL88:
+ case MESA_FORMAT_AL88_REV:
+ case MESA_FORMAT_RG88:
+ case MESA_FORMAT_RG88_REV:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_AL1616:
+ case MESA_FORMAT_AL1616_REV:
+ case MESA_FORMAT_RG1616:
+ case MESA_FORMAT_RG1616_REV:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_R16:
+ case MESA_FORMAT_A16:
+ case MESA_FORMAT_L16:
+ case MESA_FORMAT_I16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_RGB332:
+ *datatype = GL_UNSIGNED_BYTE_3_3_2;
+ *comps = 3;
+ return;
+
+ case MESA_FORMAT_A8:
+ case MESA_FORMAT_L8:
+ case MESA_FORMAT_I8:
+ case MESA_FORMAT_CI8:
+ case MESA_FORMAT_R8:
+ case MESA_FORMAT_S8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_YCBCR:
+ case MESA_FORMAT_YCBCR_REV:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_Z24_S8:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1; /* XXX OK? */
+ return;
+
+ case MESA_FORMAT_S8_Z24:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1; /* XXX OK? */
+ return;
+
+ case MESA_FORMAT_Z16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_X8_Z24:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_Z24_X8:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_Z32:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_DUDV8:
+ *datatype = GL_BYTE;
+ *comps = 2;
+ return;
+
+ case MESA_FORMAT_SIGNED_R8:
+ *datatype = GL_BYTE;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_SIGNED_RG88:
+ *datatype = GL_BYTE;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_SIGNED_RGBA8888:
+ case MESA_FORMAT_SIGNED_RGBA8888_REV:
+ case MESA_FORMAT_SIGNED_RGBX8888:
+ *datatype = GL_BYTE;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_RGBA_16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_SIGNED_R_16:
+ *datatype = GL_SHORT;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_SIGNED_RG_16:
+ *datatype = GL_SHORT;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_SIGNED_RGB_16:
+ *datatype = GL_SHORT;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_SIGNED_RGBA_16:
+ *datatype = GL_SHORT;
+ *comps = 4;
+ return;
+
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_SRGBA8:
+ case MESA_FORMAT_SARGB8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_SL8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_SLA8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 2;
+ return;
+#endif
+
+#if FEATURE_texture_fxt1
+ case MESA_FORMAT_RGB_FXT1:
+ case MESA_FORMAT_RGBA_FXT1:
+#endif
+#if FEATURE_texture_s3tc
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_RGBA_DXT5:
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+#endif
+#endif
+ case MESA_FORMAT_RED_RGTC1:
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ case MESA_FORMAT_RG_RGTC2:
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ case MESA_FORMAT_L_LATC1:
+ case MESA_FORMAT_SIGNED_L_LATC1:
+ case MESA_FORMAT_LA_LATC2:
+ case MESA_FORMAT_SIGNED_LA_LATC2:
+ /* XXX generate error instead? */
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 0;
+ return;
+
+ case MESA_FORMAT_RGBA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGB_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_RGB_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 3;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 2;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ *datatype = GL_FLOAT;
+ *comps = 1;
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ *datatype = GL_HALF_FLOAT_ARB;
+ *comps = 1;
+ return;
+
+ case MESA_FORMAT_RGBA_INT8:
+ *datatype = GL_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_INT16:
+ *datatype = GL_SHORT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_INT32:
+ *datatype = GL_INT;
+ *comps = 4;
+ return;
+
+ /**
+ * \name Non-normalized unsigned integer formats.
+ */
+ case MESA_FORMAT_RGBA_UINT8:
+ *datatype = GL_UNSIGNED_BYTE;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_UINT16:
+ *datatype = GL_UNSIGNED_SHORT;
+ *comps = 4;
+ return;
+ case MESA_FORMAT_RGBA_UINT32:
+ *datatype = GL_UNSIGNED_INT;
+ *comps = 4;
+ return;
+
+ case MESA_FORMAT_COUNT:
+ assert(0);
+ return;
+
+ case MESA_FORMAT_NONE:
+ /* For debug builds, warn if any formats are not handled */
+#ifdef DEBUG
+ default:
+#endif
+ _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
+ _mesa_get_format_name(format));
+ *datatype = 0;
+ *comps = 1;
+ }
+}
diff --git a/mesalib/src/mesa/main/formats.h b/mesalib/src/mesa/main/formats.h index 04a18930b..81ba76ce0 100644 --- a/mesalib/src/mesa/main/formats.h +++ b/mesalib/src/mesa/main/formats.h @@ -1,251 +1,251 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (c) 2008-2009 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Authors: - * Brian Paul - */ - - -#ifndef FORMATS_H -#define FORMATS_H - - -#include <GL/gl.h> - -/* OpenGL doesn't have GL_UNSIGNED_BYTE_4_4, so we must define our own type - * for GL_LUMINANCE4_ALPHA4. */ -#define MESA_UNSIGNED_BYTE_4_4 (GL_UNSIGNED_BYTE<<1) - - -/** - * Mesa texture/renderbuffer image formats. - */ -typedef enum -{ - MESA_FORMAT_NONE = 0, - - /** - * \name Basic hardware formats - */ - /*@{*/ - /* msb <------ TEXEL BITS -----------> lsb */ - /* ---- ---- ---- ---- ---- ---- ---- ---- */ - MESA_FORMAT_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */ - MESA_FORMAT_RGBA8888_REV, /* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */ - MESA_FORMAT_ARGB8888, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */ - MESA_FORMAT_ARGB8888_REV, /* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */ - MESA_FORMAT_XRGB8888, /* xxxx xxxx RRRR RRRR GGGG GGGG BBBB BBBB */ - MESA_FORMAT_XRGB8888_REV, /* BBBB BBBB GGGG GGGG RRRR RRRR xxxx xxxx */ - MESA_FORMAT_RGB888, /* RRRR RRRR GGGG GGGG BBBB BBBB */ - MESA_FORMAT_BGR888, /* BBBB BBBB GGGG GGGG RRRR RRRR */ - MESA_FORMAT_RGB565, /* RRRR RGGG GGGB BBBB */ - MESA_FORMAT_RGB565_REV, /* GGGB BBBB RRRR RGGG */ - MESA_FORMAT_ARGB4444, /* AAAA RRRR GGGG BBBB */ - MESA_FORMAT_ARGB4444_REV, /* GGGG BBBB AAAA RRRR */ - MESA_FORMAT_RGBA5551, /* RRRR RGGG GGBB BBBA */ - MESA_FORMAT_ARGB1555, /* ARRR RRGG GGGB BBBB */ - MESA_FORMAT_ARGB1555_REV, /* GGGB BBBB ARRR RRGG */ - MESA_FORMAT_AL44, /* AAAA LLLL */ - MESA_FORMAT_AL88, /* AAAA AAAA LLLL LLLL */ - MESA_FORMAT_AL88_REV, /* LLLL LLLL AAAA AAAA */ - MESA_FORMAT_AL1616, /* AAAA AAAA AAAA AAAA LLLL LLLL LLLL LLLL */ - MESA_FORMAT_AL1616_REV, /* LLLL LLLL LLLL LLLL AAAA AAAA AAAA AAAA */ - MESA_FORMAT_RGB332, /* RRRG GGBB */ - MESA_FORMAT_A8, /* AAAA AAAA */ - MESA_FORMAT_A16, /* AAAA AAAA AAAA AAAA */ - MESA_FORMAT_L8, /* LLLL LLLL */ - MESA_FORMAT_L16, /* LLLL LLLL LLLL LLLL */ - MESA_FORMAT_I8, /* IIII IIII */ - MESA_FORMAT_I16, /* IIII IIII IIII IIII */ - MESA_FORMAT_CI8, /* CCCC CCCC */ - MESA_FORMAT_YCBCR, /* YYYY YYYY UorV UorV */ - MESA_FORMAT_YCBCR_REV, /* UorV UorV YYYY YYYY */ - MESA_FORMAT_R8, /* RRRR RRRR */ - MESA_FORMAT_RG88, /* RRRR RRRR GGGG GGGG */ - MESA_FORMAT_RG88_REV, /* GGGG GGGG RRRR RRRR */ - MESA_FORMAT_R16, /* RRRR RRRR RRRR RRRR */ - MESA_FORMAT_RG1616, /* RRRR RRRR RRRR RRRR GGGG GGGG GGGG GGGG */ - MESA_FORMAT_RG1616_REV, /* GGGG GGGG GGGG GGGG RRRR RRRR RRRR RRRR */ - MESA_FORMAT_ARGB2101010, /* AARR RRRR RRRR GGGG GGGG GGBB BBBB BBBB */ - MESA_FORMAT_Z24_S8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ SSSS SSSS */ - MESA_FORMAT_S8_Z24, /* SSSS SSSS ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */ - MESA_FORMAT_Z16, /* ZZZZ ZZZZ ZZZZ ZZZZ */ - MESA_FORMAT_X8_Z24, /* xxxx xxxx ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */ - MESA_FORMAT_Z24_X8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ xxxx xxxx */ - MESA_FORMAT_Z32, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */ - MESA_FORMAT_S8, /* SSSS SSSS */ - /*@}*/ - - /** - * \name 8-bit/channel sRGB formats - */ - /*@{*/ - MESA_FORMAT_SRGB8, - MESA_FORMAT_SRGBA8, - MESA_FORMAT_SARGB8, - MESA_FORMAT_SL8, - MESA_FORMAT_SLA8, - MESA_FORMAT_SRGB_DXT1, - MESA_FORMAT_SRGBA_DXT1, - MESA_FORMAT_SRGBA_DXT3, - MESA_FORMAT_SRGBA_DXT5, - /*@}*/ - - /** - * \name Compressed texture formats. - */ - /*@{*/ - MESA_FORMAT_RGB_FXT1, - MESA_FORMAT_RGBA_FXT1, - MESA_FORMAT_RGB_DXT1, - MESA_FORMAT_RGBA_DXT1, - MESA_FORMAT_RGBA_DXT3, - MESA_FORMAT_RGBA_DXT5, - /*@}*/ - - /** - * \name Floating point texture formats. - */ - /*@{*/ - MESA_FORMAT_RGBA_FLOAT32, - MESA_FORMAT_RGBA_FLOAT16, - MESA_FORMAT_RGB_FLOAT32, - MESA_FORMAT_RGB_FLOAT16, - MESA_FORMAT_ALPHA_FLOAT32, - MESA_FORMAT_ALPHA_FLOAT16, - MESA_FORMAT_LUMINANCE_FLOAT32, - MESA_FORMAT_LUMINANCE_FLOAT16, - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, - MESA_FORMAT_INTENSITY_FLOAT32, - MESA_FORMAT_INTENSITY_FLOAT16, - /*@}*/ - - /** - * \name Non-normalized signed integer formats. - * XXX Note: these are just stand-ins for some better hardware - * formats TBD such as BGRA or ARGB. - */ - MESA_FORMAT_RGBA_INT8, - MESA_FORMAT_RGBA_INT16, - MESA_FORMAT_RGBA_INT32, - - /** - * \name Non-normalized unsigned integer formats. - */ - MESA_FORMAT_RGBA_UINT8, - MESA_FORMAT_RGBA_UINT16, - MESA_FORMAT_RGBA_UINT32, - - /* msb <------ TEXEL BITS -----------> lsb */ - /* ---- ---- ---- ---- ---- ---- ---- ---- */ - /** - * \name Signed fixed point texture formats. - */ - /*@{*/ - MESA_FORMAT_DUDV8, /* DUDU DUDU DVDV DVDV */ - MESA_FORMAT_SIGNED_R8, /* RRRR RRRR */ - MESA_FORMAT_SIGNED_RG88, /* RRRR RRRR GGGG GGGG */ - MESA_FORMAT_SIGNED_RGBX8888, /* RRRR RRRR GGGG GGGG BBBB BBBB xxxx xxxx */ - MESA_FORMAT_SIGNED_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */ - MESA_FORMAT_SIGNED_RGBA8888_REV,/*AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */ - MESA_FORMAT_SIGNED_R_16, /* ushort[0]=R */ - MESA_FORMAT_SIGNED_RG_16, /* ushort[0]=R, ushort[1]=G */ - MESA_FORMAT_SIGNED_RGB_16, /* ushort[0]=R, ushort[1]=G, ushort[2]=B */ - MESA_FORMAT_SIGNED_RGBA_16, /* ... */ - MESA_FORMAT_RGBA_16, /* ... */ - /*@}*/ - - /*@{*/ - MESA_FORMAT_RED_RGTC1, - MESA_FORMAT_SIGNED_RED_RGTC1, - MESA_FORMAT_RG_RGTC2, - MESA_FORMAT_SIGNED_RG_RGTC2, - /*@}*/ - - /*@{*/ - MESA_FORMAT_L_LATC1, - MESA_FORMAT_SIGNED_L_LATC1, - MESA_FORMAT_LA_LATC2, - MESA_FORMAT_SIGNED_LA_LATC2, - /*@}*/ - - MESA_FORMAT_COUNT -} gl_format; - - -extern const char * -_mesa_get_format_name(gl_format format); - -extern GLuint -_mesa_get_format_bytes(gl_format format); - -extern GLint -_mesa_get_format_bits(gl_format format, GLenum pname); - -extern GLenum -_mesa_get_format_datatype(gl_format format); - -extern GLenum -_mesa_get_format_base_format(gl_format format); - -extern void -_mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh); - -extern GLboolean -_mesa_is_format_compressed(gl_format format); - -extern GLboolean -_mesa_is_format_packed_depth_stencil(gl_format format); - -extern GLboolean -_mesa_is_format_integer_color(gl_format format); - -extern GLenum -_mesa_get_format_color_encoding(gl_format format); - -extern GLuint -_mesa_format_image_size(gl_format format, GLsizei width, - GLsizei height, GLsizei depth); - -extern uint64_t -_mesa_format_image_size64(gl_format format, GLsizei width, - GLsizei height, GLsizei depth); - -extern GLint -_mesa_format_row_stride(gl_format format, GLsizei width); - -extern void -_mesa_format_to_type_and_comps(gl_format format, - GLenum *datatype, GLuint *comps); - -extern void -_mesa_test_formats(void); - -extern gl_format -_mesa_get_srgb_format_linear(gl_format format); - -#endif /* FORMATS_H */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008-2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Authors:
+ * Brian Paul
+ */
+
+
+#ifndef FORMATS_H
+#define FORMATS_H
+
+
+#include <GL/gl.h>
+
+/* OpenGL doesn't have GL_UNSIGNED_BYTE_4_4, so we must define our own type
+ * for GL_LUMINANCE4_ALPHA4. */
+#define MESA_UNSIGNED_BYTE_4_4 (GL_UNSIGNED_BYTE<<1)
+
+
+/**
+ * Mesa texture/renderbuffer image formats.
+ */
+typedef enum
+{
+ MESA_FORMAT_NONE = 0,
+
+ /**
+ * \name Basic hardware formats
+ */
+ /*@{*/
+ /* msb <------ TEXEL BITS -----------> lsb */
+ /* ---- ---- ---- ---- ---- ---- ---- ---- */
+ MESA_FORMAT_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */
+ MESA_FORMAT_RGBA8888_REV, /* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */
+ MESA_FORMAT_ARGB8888, /* AAAA AAAA RRRR RRRR GGGG GGGG BBBB BBBB */
+ MESA_FORMAT_ARGB8888_REV, /* BBBB BBBB GGGG GGGG RRRR RRRR AAAA AAAA */
+ MESA_FORMAT_XRGB8888, /* xxxx xxxx RRRR RRRR GGGG GGGG BBBB BBBB */
+ MESA_FORMAT_XRGB8888_REV, /* BBBB BBBB GGGG GGGG RRRR RRRR xxxx xxxx */
+ MESA_FORMAT_RGB888, /* RRRR RRRR GGGG GGGG BBBB BBBB */
+ MESA_FORMAT_BGR888, /* BBBB BBBB GGGG GGGG RRRR RRRR */
+ MESA_FORMAT_RGB565, /* RRRR RGGG GGGB BBBB */
+ MESA_FORMAT_RGB565_REV, /* GGGB BBBB RRRR RGGG */
+ MESA_FORMAT_ARGB4444, /* AAAA RRRR GGGG BBBB */
+ MESA_FORMAT_ARGB4444_REV, /* GGGG BBBB AAAA RRRR */
+ MESA_FORMAT_RGBA5551, /* RRRR RGGG GGBB BBBA */
+ MESA_FORMAT_ARGB1555, /* ARRR RRGG GGGB BBBB */
+ MESA_FORMAT_ARGB1555_REV, /* GGGB BBBB ARRR RRGG */
+ MESA_FORMAT_AL44, /* AAAA LLLL */
+ MESA_FORMAT_AL88, /* AAAA AAAA LLLL LLLL */
+ MESA_FORMAT_AL88_REV, /* LLLL LLLL AAAA AAAA */
+ MESA_FORMAT_AL1616, /* AAAA AAAA AAAA AAAA LLLL LLLL LLLL LLLL */
+ MESA_FORMAT_AL1616_REV, /* LLLL LLLL LLLL LLLL AAAA AAAA AAAA AAAA */
+ MESA_FORMAT_RGB332, /* RRRG GGBB */
+ MESA_FORMAT_A8, /* AAAA AAAA */
+ MESA_FORMAT_A16, /* AAAA AAAA AAAA AAAA */
+ MESA_FORMAT_L8, /* LLLL LLLL */
+ MESA_FORMAT_L16, /* LLLL LLLL LLLL LLLL */
+ MESA_FORMAT_I8, /* IIII IIII */
+ MESA_FORMAT_I16, /* IIII IIII IIII IIII */
+ MESA_FORMAT_CI8, /* CCCC CCCC */
+ MESA_FORMAT_YCBCR, /* YYYY YYYY UorV UorV */
+ MESA_FORMAT_YCBCR_REV, /* UorV UorV YYYY YYYY */
+ MESA_FORMAT_R8, /* RRRR RRRR */
+ MESA_FORMAT_RG88, /* RRRR RRRR GGGG GGGG */
+ MESA_FORMAT_RG88_REV, /* GGGG GGGG RRRR RRRR */
+ MESA_FORMAT_R16, /* RRRR RRRR RRRR RRRR */
+ MESA_FORMAT_RG1616, /* RRRR RRRR RRRR RRRR GGGG GGGG GGGG GGGG */
+ MESA_FORMAT_RG1616_REV, /* GGGG GGGG GGGG GGGG RRRR RRRR RRRR RRRR */
+ MESA_FORMAT_ARGB2101010, /* AARR RRRR RRRR GGGG GGGG GGBB BBBB BBBB */
+ MESA_FORMAT_Z24_S8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ SSSS SSSS */
+ MESA_FORMAT_S8_Z24, /* SSSS SSSS ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */
+ MESA_FORMAT_Z16, /* ZZZZ ZZZZ ZZZZ ZZZZ */
+ MESA_FORMAT_X8_Z24, /* xxxx xxxx ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */
+ MESA_FORMAT_Z24_X8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ xxxx xxxx */
+ MESA_FORMAT_Z32, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ */
+ MESA_FORMAT_S8, /* SSSS SSSS */
+ /*@}*/
+
+ /**
+ * \name 8-bit/channel sRGB formats
+ */
+ /*@{*/
+ MESA_FORMAT_SRGB8,
+ MESA_FORMAT_SRGBA8,
+ MESA_FORMAT_SARGB8,
+ MESA_FORMAT_SL8,
+ MESA_FORMAT_SLA8,
+ MESA_FORMAT_SRGB_DXT1,
+ MESA_FORMAT_SRGBA_DXT1,
+ MESA_FORMAT_SRGBA_DXT3,
+ MESA_FORMAT_SRGBA_DXT5,
+ /*@}*/
+
+ /**
+ * \name Compressed texture formats.
+ */
+ /*@{*/
+ MESA_FORMAT_RGB_FXT1,
+ MESA_FORMAT_RGBA_FXT1,
+ MESA_FORMAT_RGB_DXT1,
+ MESA_FORMAT_RGBA_DXT1,
+ MESA_FORMAT_RGBA_DXT3,
+ MESA_FORMAT_RGBA_DXT5,
+ /*@}*/
+
+ /**
+ * \name Floating point texture formats.
+ */
+ /*@{*/
+ MESA_FORMAT_RGBA_FLOAT32,
+ MESA_FORMAT_RGBA_FLOAT16,
+ MESA_FORMAT_RGB_FLOAT32,
+ MESA_FORMAT_RGB_FLOAT16,
+ MESA_FORMAT_ALPHA_FLOAT32,
+ MESA_FORMAT_ALPHA_FLOAT16,
+ MESA_FORMAT_LUMINANCE_FLOAT32,
+ MESA_FORMAT_LUMINANCE_FLOAT16,
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
+ MESA_FORMAT_INTENSITY_FLOAT32,
+ MESA_FORMAT_INTENSITY_FLOAT16,
+ /*@}*/
+
+ /**
+ * \name Non-normalized signed integer formats.
+ * XXX Note: these are just stand-ins for some better hardware
+ * formats TBD such as BGRA or ARGB.
+ */
+ MESA_FORMAT_RGBA_INT8,
+ MESA_FORMAT_RGBA_INT16,
+ MESA_FORMAT_RGBA_INT32,
+
+ /**
+ * \name Non-normalized unsigned integer formats.
+ */
+ MESA_FORMAT_RGBA_UINT8,
+ MESA_FORMAT_RGBA_UINT16,
+ MESA_FORMAT_RGBA_UINT32,
+
+ /* msb <------ TEXEL BITS -----------> lsb */
+ /* ---- ---- ---- ---- ---- ---- ---- ---- */
+ /**
+ * \name Signed fixed point texture formats.
+ */
+ /*@{*/
+ MESA_FORMAT_DUDV8, /* DUDU DUDU DVDV DVDV */
+ MESA_FORMAT_SIGNED_R8, /* RRRR RRRR */
+ MESA_FORMAT_SIGNED_RG88, /* RRRR RRRR GGGG GGGG */
+ MESA_FORMAT_SIGNED_RGBX8888, /* RRRR RRRR GGGG GGGG BBBB BBBB xxxx xxxx */
+ MESA_FORMAT_SIGNED_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */
+ MESA_FORMAT_SIGNED_RGBA8888_REV,/*AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */
+ MESA_FORMAT_SIGNED_R_16, /* ushort[0]=R */
+ MESA_FORMAT_SIGNED_RG_16, /* ushort[0]=R, ushort[1]=G */
+ MESA_FORMAT_SIGNED_RGB_16, /* ushort[0]=R, ushort[1]=G, ushort[2]=B */
+ MESA_FORMAT_SIGNED_RGBA_16, /* ... */
+ MESA_FORMAT_RGBA_16, /* ... */
+ /*@}*/
+
+ /*@{*/
+ MESA_FORMAT_RED_RGTC1,
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ MESA_FORMAT_RG_RGTC2,
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ /*@}*/
+
+ /*@{*/
+ MESA_FORMAT_L_LATC1,
+ MESA_FORMAT_SIGNED_L_LATC1,
+ MESA_FORMAT_LA_LATC2,
+ MESA_FORMAT_SIGNED_LA_LATC2,
+ /*@}*/
+
+ MESA_FORMAT_COUNT
+} gl_format;
+
+
+extern const char *
+_mesa_get_format_name(gl_format format);
+
+extern GLuint
+_mesa_get_format_bytes(gl_format format);
+
+extern GLint
+_mesa_get_format_bits(gl_format format, GLenum pname);
+
+extern GLenum
+_mesa_get_format_datatype(gl_format format);
+
+extern GLenum
+_mesa_get_format_base_format(gl_format format);
+
+extern void
+_mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh);
+
+extern GLboolean
+_mesa_is_format_compressed(gl_format format);
+
+extern GLboolean
+_mesa_is_format_packed_depth_stencil(gl_format format);
+
+extern GLboolean
+_mesa_is_format_integer_color(gl_format format);
+
+extern GLenum
+_mesa_get_format_color_encoding(gl_format format);
+
+extern GLuint
+_mesa_format_image_size(gl_format format, GLsizei width,
+ GLsizei height, GLsizei depth);
+
+extern uint64_t
+_mesa_format_image_size64(gl_format format, GLsizei width,
+ GLsizei height, GLsizei depth);
+
+extern GLint
+_mesa_format_row_stride(gl_format format, GLsizei width);
+
+extern void
+_mesa_format_to_type_and_comps(gl_format format,
+ GLenum *datatype, GLuint *comps);
+
+extern void
+_mesa_test_formats(void);
+
+extern gl_format
+_mesa_get_srgb_format_linear(gl_format format);
+
+#endif /* FORMATS_H */
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c index 81a2a4e7c..206c66062 100644 --- a/mesalib/src/mesa/main/get.c +++ b/mesalib/src/mesa/main/get.c @@ -1,2527 +1,2527 @@ -/* - * Copyright (C) 2010 Brian Paul All Rights Reserved. - * Copyright (C) 2010 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Author: Kristian Høgsberg <krh@bitplanet.net> - */ - -#include "glheader.h" -#include "context.h" -#include "enable.h" -#include "enums.h" -#include "extensions.h" -#include "get.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "state.h" -#include "texcompress.h" -#include "framebuffer.h" - -/* This is a table driven implemetation of the glGet*v() functions. - * The basic idea is that most getters just look up an int somewhere - * in struct gl_context and then convert it to a bool or float according to - * which of glGetIntegerv() glGetBooleanv() etc is being called. - * Instead of generating code to do this, we can just record the enum - * value and the offset into struct gl_context in an array of structs. Then - * in glGet*(), we lookup the struct for the enum in question, and use - * the offset to get the int we need. - * - * Sometimes we need to look up a float, a boolean, a bit in a - * bitfield, a matrix or other types instead, so we need to track the - * type of the value in struct gl_context. And sometimes the value isn't in - * struct gl_context but in the drawbuffer, the array object, current texture - * unit, or maybe it's a computed value. So we need to also track - * where or how to find the value. Finally, we sometimes need to - * check that one of a number of extensions are enabled, the GL - * version or flush or call _mesa_update_state(). This is done by - * attaching optional extra information to the value description - * struct, it's sort of like an array of opcodes that describe extra - * checks or actions. - * - * Putting all this together we end up with struct value_desc below, - * and with a couple of macros to help, the table of struct value_desc - * is about as concise as the specification in the old python script. - */ - -#undef CONST - -#define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE ) -#define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \ - ((F) * 65536.0f < INT_MIN) ? INT_MIN : \ - (GLint) ((F) * 65536.0f) ) - -#define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) -#define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \ - ((I) < SHRT_MIN) ? INT_MIN : \ - (GLint) ((I) * 65536) ) - -#define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE ) -#define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) ) - -#define BOOLEAN_TO_INT(B) ( (GLint) (B) ) -#define BOOLEAN_TO_INT64(B) ( (GLint64) (B) ) -#define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F ) -#define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 ) - -#define ENUM_TO_INT64(E) ( (GLint64) (E) ) -#define ENUM_TO_FIXED(E) (E) - -enum value_type { - TYPE_INVALID, - TYPE_API_MASK, - TYPE_INT, - TYPE_INT_2, - TYPE_INT_3, - TYPE_INT_4, - TYPE_INT_N, - TYPE_INT64, - TYPE_ENUM, - TYPE_ENUM_2, - TYPE_BOOLEAN, - TYPE_BIT_0, - TYPE_BIT_1, - TYPE_BIT_2, - TYPE_BIT_3, - TYPE_BIT_4, - TYPE_BIT_5, - TYPE_FLOAT, - TYPE_FLOAT_2, - TYPE_FLOAT_3, - TYPE_FLOAT_4, - TYPE_FLOATN, - TYPE_FLOATN_2, - TYPE_FLOATN_3, - TYPE_FLOATN_4, - TYPE_DOUBLEN, - TYPE_MATRIX, - TYPE_MATRIX_T, - TYPE_CONST -}; - -enum value_location { - LOC_BUFFER, - LOC_CONTEXT, - LOC_ARRAY, - LOC_TEXUNIT, - LOC_CUSTOM -}; - -enum value_extra { - EXTRA_END = 0x8000, - EXTRA_VERSION_30, - EXTRA_VERSION_31, - EXTRA_VERSION_32, - EXTRA_VERSION_ES2, - EXTRA_NEW_BUFFERS, - EXTRA_VALID_DRAW_BUFFER, - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_FLUSH_CURRENT, -}; - -#define NO_EXTRA NULL -#define NO_OFFSET 0 - -struct value_desc { - GLenum pname; - GLubyte location; /**< enum value_location */ - GLubyte type; /**< enum value_type */ - int offset; - const int *extra; -}; - -union value { - GLfloat value_float; - GLfloat value_float_4[4]; - GLmatrix *value_matrix; - GLint value_int; - GLint value_int_4[4]; - GLint64 value_int64; - GLenum value_enum; - - /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */ - struct { - GLint n, ints[100]; - } value_int_n; - GLboolean value_bool; -}; - -#define BUFFER_FIELD(field, type) \ - LOC_BUFFER, type, offsetof(struct gl_framebuffer, field) -#define CONTEXT_FIELD(field, type) \ - LOC_CONTEXT, type, offsetof(struct gl_context, field) -#define ARRAY_FIELD(field, type) \ - LOC_ARRAY, type, offsetof(struct gl_array_object, field) -#define CONST(value) \ - LOC_CONTEXT, TYPE_CONST, value - -#define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT) -#define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM) -#define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN) - -#define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT) -#define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2) -#define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64) -#define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM) -#define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2) -#define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN) -#define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0) -#define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1) -#define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2) -#define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3) -#define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4) -#define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5) -#define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT) -#define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2) -#define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3) -#define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4) -#define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX) -#define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T) - -#define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT) -#define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM) -#define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN) - -#define EXT(f) \ - offsetof(struct gl_extensions, f) - -#define EXTRA_EXT(e) \ - static const int extra_##e[] = { \ - EXT(e), EXTRA_END \ - } - -#define EXTRA_EXT2(e1, e2) \ - static const int extra_##e1##_##e2[] = { \ - EXT(e1), EXT(e2), EXTRA_END \ - } - -/* The 'extra' mechanism is a way to specify extra checks (such as - * extensions or specific gl versions) or actions (flush current, new - * buffers) that we need to do before looking up an enum. We need to - * declare them all up front so we can refer to them in the value_desc - * structs below. */ - -static const int extra_new_buffers[] = { - EXTRA_NEW_BUFFERS, - EXTRA_END -}; - -static const int extra_valid_draw_buffer[] = { - EXTRA_VALID_DRAW_BUFFER, - EXTRA_END -}; - -static const int extra_valid_texture_unit[] = { - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_END -}; - -static const int extra_flush_current_valid_texture_unit[] = { - EXTRA_FLUSH_CURRENT, - EXTRA_VALID_TEXTURE_UNIT, - EXTRA_END -}; - -static const int extra_flush_current[] = { - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_new_buffers_OES_read_format[] = { - EXTRA_NEW_BUFFERS, - EXT(OES_read_format), - EXTRA_END -}; - -static const int extra_EXT_secondary_color_flush_current[] = { - EXT(EXT_secondary_color), - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_EXT_fog_coord_flush_current[] = { - EXT(EXT_fog_coord), - EXTRA_FLUSH_CURRENT, - EXTRA_END -}; - -static const int extra_EXT_texture_integer[] = { - EXT(EXT_texture_integer), - EXTRA_END -}; - -static const int extra_EXT_gpu_shader4[] = { - EXT(EXT_gpu_shader4), - EXTRA_END -}; - - -EXTRA_EXT(ARB_ES2_compatibility); -EXTRA_EXT(ARB_multitexture); -EXTRA_EXT(ARB_texture_cube_map); -EXTRA_EXT(MESA_texture_array); -EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program); -EXTRA_EXT(EXT_secondary_color); -EXTRA_EXT(EXT_fog_coord); -EXTRA_EXT(EXT_texture_lod_bias); -EXTRA_EXT(EXT_texture_filter_anisotropic); -EXTRA_EXT(IBM_rasterpos_clip); -EXTRA_EXT(NV_point_sprite); -EXTRA_EXT(SGIS_generate_mipmap); -EXTRA_EXT(NV_vertex_program); -EXTRA_EXT(NV_fragment_program); -EXTRA_EXT(NV_texture_rectangle); -EXTRA_EXT(EXT_stencil_two_side); -EXTRA_EXT(NV_light_max_exponent); -EXTRA_EXT(EXT_depth_bounds_test); -EXTRA_EXT(ARB_depth_clamp); -EXTRA_EXT(ATI_fragment_shader); -EXTRA_EXT(EXT_framebuffer_blit); -EXTRA_EXT(ARB_shader_objects); -EXTRA_EXT(EXT_provoking_vertex); -EXTRA_EXT(ARB_fragment_shader); -EXTRA_EXT(ARB_fragment_program); -EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample); -EXTRA_EXT(EXT_framebuffer_object); -EXTRA_EXT(APPLE_vertex_array_object); -EXTRA_EXT(ARB_seamless_cube_map); -EXTRA_EXT(EXT_compiled_vertex_array); -EXTRA_EXT(ARB_sync); -EXTRA_EXT(ARB_vertex_shader); -EXTRA_EXT(EXT_transform_feedback); -EXTRA_EXT(ARB_transform_feedback2); -EXTRA_EXT(EXT_pixel_buffer_object); -EXTRA_EXT(ARB_vertex_program); -EXTRA_EXT2(NV_point_sprite, ARB_point_sprite); -EXTRA_EXT2(ARB_fragment_program, NV_fragment_program); -EXTRA_EXT2(ARB_vertex_program, NV_vertex_program); -EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program); -EXTRA_EXT(ARB_vertex_buffer_object); -EXTRA_EXT(ARB_geometry_shader4); -EXTRA_EXT(ARB_copy_buffer); -EXTRA_EXT(EXT_framebuffer_sRGB); - -static const int -extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { - EXT(ARB_vertex_program), - EXT(ARB_fragment_program), - EXT(NV_vertex_program), - EXTRA_END -}; - -static const int -extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = { - EXT(NV_vertex_program), - EXT(ARB_vertex_program), - EXT(ARB_fragment_program), - EXT(NV_vertex_program), - EXTRA_END -}; - -static const int -extra_NV_primitive_restart[] = { - EXT(NV_primitive_restart), - EXTRA_END -}; - -static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END }; -static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END }; -static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END }; - -static const int -extra_ARB_vertex_program_version_es2[] = { - EXT(ARB_vertex_program), - EXTRA_VERSION_ES2, - EXTRA_END -}; - -#define API_OPENGL_BIT (1 << API_OPENGL) -#define API_OPENGLES_BIT (1 << API_OPENGLES) -#define API_OPENGLES2_BIT (1 << API_OPENGLES2) - -/* This is the big table describing all the enums we accept in - * glGet*v(). The table is partitioned into six parts: enums - * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared - * between OpenGL and GLES, enums exclusive to GLES, etc for the - * remaining combinations. When we add the enums to the hash table in - * _mesa_init_get_hash(), we only add the enums for the API we're - * instantiating and the different sections are guarded by #if - * FEATURE_GL etc to make sure we only compile in the enums we may - * need. */ - -static const struct value_desc values[] = { - /* Enums shared between OpenGL, GLES1 and GLES2 */ - { 0, 0, TYPE_API_MASK, - API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT, NO_EXTRA}, - { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers }, - { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA }, - { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, - { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers }, - { GL_COLOR_CLEAR_VALUE, CONTEXT_FIELD(Color.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA }, - { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA }, - { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA }, - { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA }, - { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA }, - { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA }, - { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA }, - { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA }, - { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA }, - { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA }, - { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers }, - { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA }, - { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA }, - { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, - { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA }, - { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA }, - { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA }, - { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA }, - { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA }, - { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA }, - { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA }, - { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA }, - { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers }, - { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA }, - { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA }, - { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA }, - { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA }, - { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA }, - { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA }, - { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA }, - { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA }, - - /* GL_ARB_multitexture */ - { GL_ACTIVE_TEXTURE_ARB, - LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, - - /* Note that all the OES_* extensions require that the Mesa "struct - * gl_extensions" include a member with the name of the extension. - * That structure does not yet include OES extensions (and we're - * not sure whether it will). If it does, all the OES_* - * extensions below should mark the dependency. */ - - /* GL_ARB_texture_cube_map */ - { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT, - TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map }, - { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.MaxCubeTextureLevels), - extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */ - - /* XXX: OES_blend_subtract */ - { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA }, - { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, - { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA }, - { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA }, - - /* GL_BLEND_EQUATION_RGB, which is what we're really after, is - * defined identically to GL_BLEND_EQUATION. */ - { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA }, - { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA }, - - /* GL_ARB_texture_compression */ - { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA }, - - /* GL_ARB_multisample */ - { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB, - CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_VALUE_ARB, - CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA }, - { GL_SAMPLE_COVERAGE_INVERT_ARB, - CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA }, - { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA }, - { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA }, - - /* GL_SGIS_generate_mipmap */ - { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap), - extra_SGIS_generate_mipmap }, - - /* GL_ARB_vertex_buffer_object */ - { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - - /* GL_ARB_vertex_buffer_object */ - /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */ - { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_buffer_object }, - - /* GL_ARB_copy_buffer */ - { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, - { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer }, - - /* GL_OES_read_format */ - { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0, - extra_new_buffers_OES_read_format }, - { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0, - extra_new_buffers_OES_read_format }, - - /* GL_EXT_framebuffer_object */ - { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name), - extra_EXT_framebuffer_object }, - { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_framebuffer_object }, - { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize), - extra_EXT_framebuffer_object }, - - /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's - * GLSL: */ - { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA }, - -#if FEATURE_GL || FEATURE_ES1 - /* Enums in OpenGL and GLES1 */ - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT, NO_EXTRA }, - { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA }, - { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA }, - { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA }, - { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA }, - { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA }, - { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA }, - { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA }, - { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA }, - { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA }, - { GL_LIGHT_MODEL_AMBIENT, - CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA }, - { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA }, - { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA }, - { GL_ALPHA_TEST_REF, CONTEXT_FIELD(Color.AlphaRef, TYPE_FLOATN), NO_EXTRA }, - { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA }, - { GL_CLIP_PLANE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_CLIP_PLANE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), NO_EXTRA }, - { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA }, - { GL_CURRENT_COLOR, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4), - extra_flush_current }, - { GL_CURRENT_NORMAL, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3), - extra_flush_current }, - { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, - extra_flush_current_valid_texture_unit }, - { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA }, - { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA }, - { GL_FOG_COLOR, CONTEXT_FIELD(Fog.Color[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA }, - { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA }, - { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA }, - { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA }, - { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA }, - { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA }, - { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA }, - { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA }, - { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA }, - { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA }, - { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA }, - { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA }, - { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA }, - { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA }, - { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA }, - { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA }, - { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA }, - { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA }, - { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA }, - { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA }, - { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA }, - { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA }, - { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA }, - { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA }, - { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA }, - { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA }, - { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA }, - { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA }, - { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit }, - { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0, - extra_valid_texture_unit }, - - { GL_VERTEX_ARRAY, ARRAY_BOOL(Vertex.Enabled), NO_EXTRA }, - { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(Vertex.Size), NO_EXTRA }, - { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(Vertex.Type), NO_EXTRA }, - { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(Vertex.Stride), NO_EXTRA }, - { GL_NORMAL_ARRAY, ARRAY_BOOL(Normal.Enabled), NO_EXTRA }, - { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(Normal.Type), NO_EXTRA }, - { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(Normal.Stride), NO_EXTRA }, - { GL_COLOR_ARRAY, ARRAY_BOOL(Color.Enabled), NO_EXTRA }, - { GL_COLOR_ARRAY_SIZE, ARRAY_INT(Color.Size), NO_EXTRA }, - { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(Color.Type), NO_EXTRA }, - { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(Color.Stride), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY, - LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_SIZE, - LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Size), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_TYPE, - LOC_CUSTOM, TYPE_ENUM, offsetof(struct gl_client_array, Type), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_STRIDE, - LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Stride), NO_EXTRA }, - - /* GL_ARB_ES2_compatibility */ - { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility }, - { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), - extra_ARB_ES2_compatibility }, - { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_ES2_compatibility }, - { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_ES2_compatibility }, - - /* GL_ARB_multitexture */ - { GL_MAX_TEXTURE_UNITS_ARB, - CONTEXT_INT(Const.MaxTextureUnits), extra_ARB_multitexture }, - { GL_CLIENT_ACTIVE_TEXTURE_ARB, - LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture }, - - /* GL_ARB_texture_cube_map */ - { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - /* S, T, and R are always set at the same time */ - { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - - /* GL_ARB_multisample */ - { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA }, - { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA }, - - /* GL_ARB_vertex_buffer_object */ - { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Vertex.BufferObj), NO_EXTRA }, - { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Normal.BufferObj), NO_EXTRA }, - { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Color.BufferObj), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA }, - - /* GL_OES_point_sprite */ - { GL_POINT_SPRITE_NV, - CONTEXT_BOOL(Point.PointSprite), - extra_NV_point_sprite_ARB_point_sprite }, - - /* GL_ARB_fragment_shader */ - { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents), - extra_ARB_fragment_shader }, - - /* GL_ARB_vertex_shader */ - { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.VertexProgram.MaxUniformComponents), - extra_ARB_vertex_shader }, - { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_shader }, - - /* GL_EXT_texture_lod_bias */ - { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias), - extra_EXT_texture_lod_bias }, - - /* GL_EXT_texture_filter_anisotropic */ - { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, - CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy), - extra_EXT_texture_filter_anisotropic }, -#endif /* FEATURE_GL || FEATURE_ES1 */ - -#if FEATURE_ES1 - { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT }, - /* XXX: OES_matrix_get */ - { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES }, - { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES }, - { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES }, - - /* OES_point_size_array */ - { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(PointSize.Enabled, TYPE_BOOLEAN) }, - { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(PointSize.Type, TYPE_ENUM) }, - { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(PointSize.Stride, TYPE_INT) }, - { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 }, -#endif /* FEATURE_ES1 */ - -#if FEATURE_GL || FEATURE_ES2 - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES2_BIT, NO_EXTRA }, - /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's GLSL: */ - { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA }, - { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */ - CONTEXT_INT(Const.MaxTextureCoordUnits), - extra_ARB_fragment_program_NV_fragment_program }, - - /* GL_ARB_draw_buffers */ - { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA }, - - { GL_BLEND_COLOR_EXT, CONTEXT_FIELD(Color.BlendColor[0], TYPE_FLOATN_4), NO_EXTRA }, - /* GL_ARB_fragment_program */ - { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */ - CONTEXT_INT(Const.MaxTextureImageUnits), - extra_ARB_fragment_program_NV_fragment_program }, - { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader }, - { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.MaxCombinedTextureImageUnits), - extra_ARB_vertex_shader }, - - /* GL_ARB_shader_objects - * Actually, this token isn't part of GL_ARB_shader_objects, but is - * close enough for now. */ - { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects }, - - /* OpenGL 2.0 */ - { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA }, - { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA }, - { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA }, - { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA }, - { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA }, - { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA }, - { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA }, - - { GL_MAX_VERTEX_ATTRIBS_ARB, - CONTEXT_INT(Const.VertexProgram.MaxAttribs), - extra_ARB_vertex_program_version_es2 }, - - /* OES_texture_3D */ - { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA }, - { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA }, - - /* GL_ARB_fragment_program/OES_standard_derivatives */ - { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB, - CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader }, -#endif /* FEATURE_GL || FEATURE_ES2 */ - -#if FEATURE_ES2 - /* Enums unique to OpenGL ES 2.0 */ - { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA }, - { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA }, - { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_SHADER_COMPILER, CONST(1), NO_EXTRA }, - /* OES_get_program_binary */ - { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, - { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA }, -#endif /* FEATURE_ES2 */ - -#if FEATURE_GL - /* Remaining enums are only in OpenGL */ - { 0, 0, TYPE_API_MASK, API_OPENGL_BIT, NO_EXTRA }, - { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA }, - { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA }, - { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA }, - { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA }, - { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA }, - { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA }, - { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA }, - { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA }, - { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA }, - { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA }, - { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA }, - { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA }, - { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA }, - { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA }, - { GL_CURRENT_INDEX, - CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]), - extra_flush_current }, - { GL_CURRENT_RASTER_COLOR, - CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA }, - { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA }, - { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA }, - { GL_CURRENT_RASTER_SECONDARY_COLOR, - CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA }, - { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0, - extra_valid_texture_unit }, - { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA }, - { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA }, - { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA }, - { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA }, - { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, - { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA }, - { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA }, - { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA }, - { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA }, - { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA }, - { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA }, - { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers }, - { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA }, - { GL_INDEX_MODE, CONST(0) , NO_EXTRA}, - { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA }, - { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA }, - { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA }, - { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA }, - { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA }, - { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA }, - { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA }, - { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA }, - { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA }, - { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA }, - { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA }, - { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA }, - { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA }, - { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA }, - { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA }, - { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA }, - { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA }, - { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA }, - { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA }, - { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA }, - { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA }, - { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA }, - { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA }, - { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA }, - { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA }, - { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA }, - { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA }, - { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA }, - { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA }, - { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA }, - { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA }, - - { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA }, - { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA }, - { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA }, - { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA }, - { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA }, - { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA }, - { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA }, - { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA }, - { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA }, - { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA }, - { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA }, - { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA }, - { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA }, - { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA }, - { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA }, - { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA }, - { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA }, - { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA }, - { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA }, - { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA }, - { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA }, - { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA }, - { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA }, - { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA }, - { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA }, - { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA }, - { GL_READ_BUFFER, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA }, - { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA }, - { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA }, - { GL_RGBA_MODE, CONST(1), NO_EXTRA }, - { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA }, - { GL_SHARED_TEXTURE_PALETTE_EXT, CONTEXT_BOOL(Texture.SharedPalette), NO_EXTRA }, - - { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA }, - - { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA }, - - { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA }, - { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT, - TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, - { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT, - TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array }, - { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, - CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array }, - - { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3, - offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA }, - { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA }, - { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA }, - { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA }, - { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA }, - { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA }, - { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA }, - { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA }, - { GL_UNPACK_CLIENT_STORAGE_APPLE, CONTEXT_BOOL(Unpack.ClientStorage), NO_EXTRA }, - { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA }, - { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA }, - - /* Vertex arrays */ - { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_INDEX_ARRAY, ARRAY_BOOL(Index.Enabled), NO_EXTRA }, - { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(Index.Type), NO_EXTRA }, - { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(Index.Stride), NO_EXTRA }, - { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(EdgeFlag.Enabled), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(EdgeFlag.Stride), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA }, - - /* GL_ARB_texture_compression */ - { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA }, - - /* GL_EXT_compiled_vertex_array */ - { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst), - extra_EXT_compiled_vertex_array }, - { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount), - extra_EXT_compiled_vertex_array }, - - /* GL_ARB_transpose_matrix */ - { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB, - CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA }, - { GL_TRANSPOSE_PROJECTION_MATRIX_ARB, - CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA }, - { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA }, - - /* GL_EXT_secondary_color */ - { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled), - extra_EXT_secondary_color_ARB_vertex_program }, - { GL_CURRENT_SECONDARY_COLOR_EXT, - CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4), - extra_EXT_secondary_color_flush_current }, - { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(SecondaryColor.Enabled), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(SecondaryColor.Type), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(SecondaryColor.Stride), - extra_EXT_secondary_color }, - { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(SecondaryColor.Size), - extra_EXT_secondary_color }, - - /* GL_EXT_fog_coord */ - { GL_CURRENT_FOG_COORDINATE_EXT, - CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]), - extra_EXT_fog_coord_flush_current }, - { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(FogCoord.Enabled), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(FogCoord.Type), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(FogCoord.Stride), - extra_EXT_fog_coord }, - { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource), - extra_EXT_fog_coord }, - - /* GL_IBM_rasterpos_clip */ - { GL_RASTER_POSITION_UNCLIPPED_IBM, - CONTEXT_BOOL(Transform.RasterPositionUnclipped), - extra_IBM_rasterpos_clip }, - - /* GL_NV_point_sprite */ - { GL_POINT_SPRITE_R_MODE_NV, - CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite }, - { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin), - extra_NV_point_sprite_ARB_point_sprite }, - - /* GL_NV_vertex_program */ - { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[0].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[1].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[2].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[3].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[4].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[5].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[6].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[7].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[8].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[9].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[10].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[11].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[12].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[13].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[14].Enabled), - extra_NV_vertex_program }, - { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[15].Enabled), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]), - extra_NV_vertex_program }, - { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]), - extra_NV_vertex_program }, - - /* GL_NV_fragment_program */ - { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled), - extra_NV_fragment_program }, - { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0, - extra_NV_fragment_program }, - { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV, - CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS), - extra_NV_fragment_program }, - - /* GL_NV_texture_rectangle */ - { GL_TEXTURE_RECTANGLE_NV, - LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle }, - { GL_TEXTURE_BINDING_RECTANGLE_NV, - LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle }, - { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, - CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle }, - - /* GL_EXT_stencil_two_side */ - { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide), - extra_EXT_stencil_two_side }, - { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA }, - - /* GL_NV_light_max_exponent */ - { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess), - extra_NV_light_max_exponent }, - { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent), - extra_NV_light_max_exponent }, - - /* GL_NV_primitive_restart */ - { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart), - extra_NV_primitive_restart }, - { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex), - extra_NV_primitive_restart }, - - /* GL_ARB_vertex_buffer_object */ - { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, Index.BufferObj), NO_EXTRA }, - { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, EdgeFlag.BufferObj), NO_EXTRA }, - { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, SecondaryColor.BufferObj), NO_EXTRA }, - { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, - offsetof(struct gl_array_object, FogCoord.BufferObj), NO_EXTRA }, - - /* GL_EXT_pixel_buffer_object */ - { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_pixel_buffer_object }, - { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_pixel_buffer_object }, - - /* GL_ARB_vertex_program */ - { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */ - CONTEXT_BOOL(VertexProgram.Enabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/ - CONTEXT_BOOL(VertexProgram.PointSizeEnabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */ - CONTEXT_BOOL(VertexProgram.TwoSideEnabled), - extra_ARB_vertex_program_NV_vertex_program }, - { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */ - CONTEXT_INT(Const.MaxProgramMatrixStackDepth), - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */ - CONTEXT_INT(Const.MaxProgramMatrices), - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */ - LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - - { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ - LOC_CUSTOM, TYPE_MATRIX, 0, - extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */ - LOC_CUSTOM, TYPE_MATRIX, 0, - extra_ARB_vertex_program_ARB_fragment_program }, - - { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */ - CONTEXT_INT(Program.ErrorPos), - extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program }, - - /* GL_ARB_fragment_program */ - { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled), - extra_ARB_fragment_program }, - - /* GL_EXT_depth_bounds_test */ - { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest), - extra_EXT_depth_bounds_test }, - { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin), - extra_EXT_depth_bounds_test }, - - /* GL_ARB_depth_clamp*/ - { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp), - extra_ARB_depth_clamp }, - - /* GL_ARB_draw_buffers */ - { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA }, - { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]), - extra_valid_draw_buffer }, - { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]), - extra_valid_draw_buffer }, - - /* GL_ATI_fragment_shader */ - { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader }, - { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader }, - { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader }, - { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader }, - { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader }, - { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader }, - { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader }, - { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI, - CONST(3), extra_ATI_fragment_shader }, - - /* GL_EXT_framebuffer_object */ - { GL_MAX_COLOR_ATTACHMENTS_EXT, CONTEXT_INT(Const.MaxColorAttachments), - extra_EXT_framebuffer_object }, - - /* GL_EXT_framebuffer_blit - * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */ - { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_framebuffer_blit }, - - /* GL_EXT_provoking_vertex */ - { GL_PROVOKING_VERTEX_EXT, - CONTEXT_BOOL(Light.ProvokingVertex), extra_EXT_provoking_vertex }, - { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT, - CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention), - extra_EXT_provoking_vertex }, - - /* GL_ARB_framebuffer_object */ - { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples), - extra_ARB_framebuffer_object_EXT_framebuffer_multisample }, - - /* GL_APPLE_vertex_array_object */ - { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name), - extra_APPLE_vertex_array_object }, - - /* GL_ARB_seamless_cube_map */ - { GL_TEXTURE_CUBE_MAP_SEAMLESS, - CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map }, - - /* GL_ARB_sync */ - { GL_MAX_SERVER_WAIT_TIMEOUT, - CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync }, - - /* GL_EXT_texture_integer */ - { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor), - extra_EXT_texture_integer }, - - /* GL_EXT_transform_feedback */ - { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0, - extra_EXT_transform_feedback }, - { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(TransformFeedback.RasterDiscard), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS, - CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, - CONTEXT_INT(Const.MaxTransformFeedbackSeparateAttribs), - extra_EXT_transform_feedback }, - { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS, - CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents), - extra_EXT_transform_feedback }, - - /* GL_ARB_transform_feedback2 */ - { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0, - extra_ARB_transform_feedback2 }, - { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0, - extra_ARB_transform_feedback2 }, - { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0, - extra_ARB_transform_feedback2 }, - - /* GL_ARB_geometry_shader4 */ - { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB, - CONTEXT_INT(Const.MaxGeometryTextureImageUnits), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB, - CONTEXT_INT(Const.MaxGeometryOutputVertices), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB, - CONTEXT_INT(Const.MaxGeometryTotalOutputComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB, - CONTEXT_INT(Const.GeometryProgram.MaxUniformComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB, - CONTEXT_INT(Const.MaxGeometryVaryingComponents), - extra_ARB_geometry_shader4 }, - { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB, - CONTEXT_INT(Const.MaxVertexVaryingComponents), - extra_ARB_geometry_shader4 }, - - /* GL_EXT_gpu_shader4 / GL 3.0 */ - { GL_MIN_PROGRAM_TEXEL_OFFSET, - CONTEXT_INT(Const.MinProgramTexelOffset), - extra_EXT_gpu_shader4 }, - { GL_MAX_PROGRAM_TEXEL_OFFSET, - CONTEXT_INT(Const.MaxProgramTexelOffset), - extra_EXT_gpu_shader4 }, - - /* GL 3.0 */ - { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 }, - { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 }, - { GL_MINOR_VERSION, CONTEXT_INT(VersionMinor), extra_version_30 }, - { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30 }, - - /* GL3.0 / GL_EXT_framebuffer_sRGB */ - { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB }, - { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB }, - - /* GL 3.1 */ - /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV - * vs. GL_PRIMITIVE_RESTART! - */ - { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart), - extra_version_31 }, - { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex), - extra_version_31 }, - - - /* GL 3.2 */ - { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask), - extra_version_32 }, -#endif /* FEATURE_GL */ -}; - -/* All we need now is a way to look up the value struct from the enum. - * The code generated by gcc for the old generated big switch - * statement is a big, balanced, open coded if/else tree, essentially - * an unrolled binary search. It would be natural to sort the new - * enum table and use bsearch(), but we will use a read-only hash - * table instead. bsearch() has a nice guaranteed worst case - * performance, but we're also guaranteed to hit that worst case - * (log2(n) iterations) for about half the enums. Instead, using an - * open addressing hash table, we can find the enum on the first try - * for 80% of the enums, 1 collision for 10% and never more than 5 - * collisions for any enum (typical numbers). And the code is very - * simple, even though it feels a little magic. */ - -static unsigned short table[1024]; -static const int prime_factor = 89, prime_step = 281; - -#ifdef GET_DEBUG -static void -print_table_stats(void) -{ - int i, j, collisions[11], count, hash, mask; - const struct value_desc *d; - - count = 0; - mask = Elements(table) - 1; - memset(collisions, 0, sizeof collisions); - - for (i = 0; i < Elements(table); i++) { - if (!table[i]) - continue; - count++; - d = &values[table[i]]; - hash = (d->pname * prime_factor); - j = 0; - while (1) { - if (values[table[hash & mask]].pname == d->pname) - break; - hash += prime_step; - j++; - } - - if (j < 10) - collisions[j]++; - else - collisions[10]++; - } - - printf("number of enums: %d (total %d)\n", count, Elements(values)); - for (i = 0; i < Elements(collisions) - 1; i++) - if (collisions[i] > 0) - printf(" %d enums with %d %scollisions\n", - collisions[i], i, i == 10 ? "or more " : ""); -} -#endif - -/** - * Initialize the enum hash for a given API - * - * This is called from one_time_init() to insert the enum values that - * are valid for the API in question into the enum hash table. - * - * \param the current context, for determining the API in question - */ -void _mesa_init_get_hash(struct gl_context *ctx) -{ - int i, hash, index, mask; - int api_mask = 0, api_bit; - - mask = Elements(table) - 1; - api_bit = 1 << ctx->API; - - for (i = 0; i < Elements(values); i++) { - if (values[i].type == TYPE_API_MASK) { - api_mask = values[i].offset; - continue; - } - if (!(api_mask & api_bit)) - continue; - - hash = (values[i].pname * prime_factor) & mask; - while (1) { - index = hash & mask; - if (!table[index]) { - table[index] = i; - break; - } - hash += prime_step; - } - } - -#ifdef GET_DEBUG - print_table_stats(); -#endif -} - -/** - * Handle irregular enums - * - * Some values don't conform to the "well-known type at context - * pointer + offset" pattern, so we have this function to catch all - * the corner cases. Typically, it's a computed value or a one-off - * pointer to a custom struct or something. - * - * In this case we can't return a pointer to the value, so we'll have - * to use the temporary variable 'v' declared back in the calling - * glGet*v() function to store the result. - * - * \param ctx the current context - * \param d the struct value_desc that describes the enum - * \param v pointer to the tmp declared in the calling glGet*v() function - */ -static void -find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v) -{ - struct gl_buffer_object **buffer_obj; - struct gl_client_array *array; - GLuint unit, *p; - - switch (d->pname) { - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_3D: - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_TEXTURE_2D_ARRAY_EXT: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_TEXTURE_RECTANGLE_NV: - v->value_bool = _mesa_IsEnabled(d->pname); - break; - - case GL_LINE_STIPPLE_PATTERN: - /* This is the only GLushort, special case it here by promoting - * to an int rather than introducing a new type. */ - v->value_int = ctx->Line.StipplePattern; - break; - - case GL_CURRENT_RASTER_TEXTURE_COORDS: - unit = ctx->Texture.CurrentUnit; - v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0]; - v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1]; - v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2]; - v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3]; - break; - - case GL_CURRENT_TEXTURE_COORDS: - unit = ctx->Texture.CurrentUnit; - v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0]; - v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1]; - v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2]; - v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3]; - break; - - case GL_COLOR_WRITEMASK: - v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0; - v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0; - v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0; - v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0; - break; - - case GL_EDGE_FLAG: - v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0; - break; - - case GL_READ_BUFFER: - v->value_enum = ctx->ReadBuffer->ColorReadBuffer; - break; - - case GL_MAP2_GRID_DOMAIN: - v->value_float_4[0] = ctx->Eval.MapGrid2u1; - v->value_float_4[1] = ctx->Eval.MapGrid2u2; - v->value_float_4[2] = ctx->Eval.MapGrid2v1; - v->value_float_4[3] = ctx->Eval.MapGrid2v2; - break; - - case GL_TEXTURE_STACK_DEPTH: - unit = ctx->Texture.CurrentUnit; - v->value_int = ctx->TextureMatrixStack[unit].Depth + 1; - break; - case GL_TEXTURE_MATRIX: - unit = ctx->Texture.CurrentUnit; - v->value_matrix = ctx->TextureMatrixStack[unit].Top; - break; - - case GL_TEXTURE_COORD_ARRAY: - case GL_TEXTURE_COORD_ARRAY_SIZE: - case GL_TEXTURE_COORD_ARRAY_TYPE: - case GL_TEXTURE_COORD_ARRAY_STRIDE: - array = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture]; - v->value_int = *(GLuint *) ((char *) array + d->offset); - break; - - case GL_ACTIVE_TEXTURE_ARB: - v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit; - break; - case GL_CLIENT_ACTIVE_TEXTURE_ARB: - v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture; - break; - - case GL_MODELVIEW_STACK_DEPTH: - case GL_PROJECTION_STACK_DEPTH: - v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1; - break; - - case GL_MAX_TEXTURE_SIZE: - case GL_MAX_3D_TEXTURE_SIZE: - case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB: - p = (GLuint *) ((char *) ctx + d->offset); - v->value_int = 1 << (*p - 1); - break; - - case GL_SCISSOR_BOX: - v->value_int_4[0] = ctx->Scissor.X; - v->value_int_4[1] = ctx->Scissor.Y; - v->value_int_4[2] = ctx->Scissor.Width; - v->value_int_4[3] = ctx->Scissor.Height; - break; - - case GL_LIST_INDEX: - v->value_int = - ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0; - break; - case GL_LIST_MODE: - if (!ctx->CompileFlag) - v->value_enum = 0; - else if (ctx->ExecuteFlag) - v->value_enum = GL_COMPILE_AND_EXECUTE; - else - v->value_enum = GL_COMPILE; - break; - - case GL_VIEWPORT: - v->value_int_4[0] = ctx->Viewport.X; - v->value_int_4[1] = ctx->Viewport.Y; - v->value_int_4[2] = ctx->Viewport.Width; - v->value_int_4[3] = ctx->Viewport.Height; - break; - - case GL_ACTIVE_STENCIL_FACE_EXT: - v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT; - break; - - case GL_STENCIL_FAIL: - v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_FUNC: - v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_PASS_DEPTH_FAIL: - v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_PASS_DEPTH_PASS: - v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_REF: - v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_VALUE_MASK: - v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace]; - break; - case GL_STENCIL_WRITEMASK: - v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace]; - break; - - case GL_NUM_EXTENSIONS: - v->value_int = _mesa_get_extension_count(ctx); - break; - - case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: - v->value_int = _mesa_get_color_read_type(ctx); - break; - case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: - v->value_int = _mesa_get_color_read_format(ctx); - break; - - case GL_CURRENT_MATRIX_STACK_DEPTH_ARB: - v->value_int = ctx->CurrentStack->Depth + 1; - break; - case GL_CURRENT_MATRIX_ARB: - case GL_TRANSPOSE_CURRENT_MATRIX_ARB: - v->value_matrix = ctx->CurrentStack->Top; - break; - - case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB: - v->value_int = _mesa_get_compressed_formats(ctx, NULL, GL_FALSE); - break; - case GL_COMPRESSED_TEXTURE_FORMATS_ARB: - v->value_int_n.n = - _mesa_get_compressed_formats(ctx, v->value_int_n.ints, GL_FALSE); - ASSERT(v->value_int_n.n <= 100); - break; - - case GL_MAX_VARYING_FLOATS_ARB: - v->value_int = ctx->Const.MaxVarying * 4; - break; - - /* Various object names */ - - case GL_TEXTURE_BINDING_1D: - case GL_TEXTURE_BINDING_2D: - case GL_TEXTURE_BINDING_3D: - case GL_TEXTURE_BINDING_1D_ARRAY_EXT: - case GL_TEXTURE_BINDING_2D_ARRAY_EXT: - case GL_TEXTURE_BINDING_CUBE_MAP_ARB: - case GL_TEXTURE_BINDING_RECTANGLE_NV: - unit = ctx->Texture.CurrentUnit; - v->value_int = - ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name; - break; - - /* GL_ARB_vertex_buffer_object */ - case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB: - case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB: - case GL_COLOR_ARRAY_BUFFER_BINDING_ARB: - case GL_INDEX_ARRAY_BUFFER_BINDING_ARB: - case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB: - case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB: - case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB: - buffer_obj = (struct gl_buffer_object **) - ((char *) ctx->Array.ArrayObj + d->offset); - v->value_int = (*buffer_obj)->Name; - break; - case GL_ARRAY_BUFFER_BINDING_ARB: - v->value_int = ctx->Array.ArrayBufferObj->Name; - break; - case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB: - v->value_int = - ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name; - break; - case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB: - v->value_int = ctx->Array.ElementArrayBufferObj->Name; - break; - - /* ARB_copy_buffer */ - case GL_COPY_READ_BUFFER: - v->value_int = ctx->CopyReadBuffer->Name; - break; - case GL_COPY_WRITE_BUFFER: - v->value_int = ctx->CopyWriteBuffer->Name; - break; - - case GL_FRAGMENT_PROGRAM_BINDING_NV: - v->value_int = - ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0; - break; - case GL_VERTEX_PROGRAM_BINDING_NV: - v->value_int = - ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0; - break; - case GL_PIXEL_PACK_BUFFER_BINDING_EXT: - v->value_int = ctx->Pack.BufferObj->Name; - break; - case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT: - v->value_int = ctx->Unpack.BufferObj->Name; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: - v->value_int = ctx->TransformFeedback.CurrentBuffer->Name; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED: - v->value_int = ctx->TransformFeedback.CurrentObject->Paused; - break; - case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE: - v->value_int = ctx->TransformFeedback.CurrentObject->Active; - break; - case GL_TRANSFORM_FEEDBACK_BINDING: - v->value_int = ctx->TransformFeedback.CurrentObject->Name; - break; - case GL_CURRENT_PROGRAM: - v->value_int = - ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0; - break; - case GL_READ_FRAMEBUFFER_BINDING_EXT: - v->value_int = ctx->ReadBuffer->Name; - break; - case GL_RENDERBUFFER_BINDING_EXT: - v->value_int = - ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0; - break; - case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: - v->value_int = ctx->Array.ArrayObj->PointSize.BufferObj->Name; - break; - - case GL_MAX_VERTEX_UNIFORM_VECTORS: - v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4; - break; - - case GL_MAX_FRAGMENT_UNIFORM_VECTORS: - v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4; - break; - } -} - -/** - * Check extra constraints on a struct value_desc descriptor - * - * If a struct value_desc has a non-NULL extra pointer, it means that - * there are a number of extra constraints to check or actions to - * perform. The extras is just an integer array where each integer - * encode different constraints or actions. - * - * \param ctx current context - * \param func name of calling glGet*v() function for error reporting - * \param d the struct value_desc that has the extra constraints - * - * \return GL_FALSE if one of the constraints was not satisfied, - * otherwise GL_TRUE. - */ -static GLboolean -check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d) -{ - const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor; - int total, enabled; - const int *e; - - total = 0; - enabled = 0; - for (e = d->extra; *e != EXTRA_END; e++) - switch (*e) { - case EXTRA_VERSION_30: - if (version >= 30) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_31: - if (version >= 31) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_32: - if (version >= 32) { - total++; - enabled++; - } - break; - case EXTRA_VERSION_ES2: - if (ctx->API == API_OPENGLES2) { - total++; - enabled++; - } - break; - case EXTRA_NEW_BUFFERS: - if (ctx->NewState & _NEW_BUFFERS) - _mesa_update_state(ctx); - break; - case EXTRA_FLUSH_CURRENT: - FLUSH_CURRENT(ctx, 0); - break; - case EXTRA_VALID_DRAW_BUFFER: - if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)", - func, d->pname - GL_DRAW_BUFFER0_ARB); - return GL_FALSE; - } - break; - case EXTRA_VALID_TEXTURE_UNIT: - if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)", - func, ctx->Texture.CurrentUnit); - return GL_FALSE; - } - break; - case EXTRA_END: - break; - default: /* *e is a offset into the extension struct */ - total++; - if (*(GLboolean *) ((char *) &ctx->Extensions + *e)) - enabled++; - break; - } - - if (total > 0 && enabled == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(d->pname)); - return GL_FALSE; - } - - return GL_TRUE; -} - -static const struct value_desc error_value = - { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA }; - -/** - * Find the struct value_desc corresponding to the enum 'pname'. - * - * We hash the enum value to get an index into the 'table' array, - * which holds the index in the 'values' array of struct value_desc. - * Once we've found the entry, we do the extra checks, if any, then - * look up the value and return a pointer to it. - * - * If the value has to be computed (for example, it's the result of a - * function call or we need to add 1 to it), we use the tmp 'v' to - * store the result. - * - * \param func name of glGet*v() func for error reporting - * \param pname the enum value we're looking up - * \param p is were we return the pointer to the value - * \param v a tmp union value variable in the calling glGet*v() function - * - * \return the struct value_desc corresponding to the enum or a struct - * value_desc of TYPE_INVALID if not found. This lets the calling - * glGet*v() function jump right into a switch statement and - * handle errors there instead of having to check for NULL. - */ -static const struct value_desc * -find_value(const char *func, GLenum pname, void **p, union value *v) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *unit; - int mask, hash; - const struct value_desc *d; - - mask = Elements(table) - 1; - hash = (pname * prime_factor); - while (1) { - d = &values[table[hash & mask]]; - - /* If the enum isn't valid, the hash walk ends with index 0, - * which is the API mask entry at the beginning of values[]. */ - if (unlikely(d->type == TYPE_API_MASK)) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return &error_value; - } - - if (likely(d->pname == pname)) - break; - - hash += prime_step; - } - - if (unlikely(d->extra && !check_extra(ctx, func, d))) - return &error_value; - - switch (d->location) { - case LOC_BUFFER: - *p = ((char *) ctx->DrawBuffer + d->offset); - return d; - case LOC_CONTEXT: - *p = ((char *) ctx + d->offset); - return d; - case LOC_ARRAY: - *p = ((char *) ctx->Array.ArrayObj + d->offset); - return d; - case LOC_TEXUNIT: - unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; - *p = ((char *) unit + d->offset); - return d; - case LOC_CUSTOM: - find_custom_value(ctx, d, v); - *p = v; - return d; - default: - assert(0); - break; - } - - /* silence warning */ - return &error_value; -} - -static const int transpose[] = { - 0, 4, 8, 12, - 1, 5, 9, 13, - 2, 6, 10, 14, - 3, 7, 11, 15 -}; - -void GLAPIENTRY -_mesa_GetBooleanv(GLenum pname, GLboolean *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetBooleanv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = INT_TO_BOOLEAN(d->offset); - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]); - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]); - break; - - case TYPE_BOOLEAN: - params[0] = ((GLboolean*) p)[0]; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_BOOLEAN(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -void GLAPIENTRY -_mesa_GetFloatv(GLenum pname, GLfloat *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetFloatv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = (GLfloat) d->offset; - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = ((GLfloat *) p)[3]; - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = ((GLfloat *) p)[2]; - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = ((GLfloat *) p)[1]; - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = ((GLfloat *) p)[0]; - break; - - case TYPE_DOUBLEN: - params[0] = ((GLdouble *) p)[0]; - break; - - case TYPE_INT_4: - params[3] = (GLfloat) (((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = (GLfloat) (((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = (GLfloat) (((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = (GLfloat) (((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[i]; - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[transpose[i]]; - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1); - break; - } -} - -void GLAPIENTRY -_mesa_GetIntegerv(GLenum pname, GLint *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetIntegerv", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - params[3] = IROUND(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - params[2] = IROUND(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - params[1] = IROUND(((GLfloat *) p)[1]); - case TYPE_FLOAT: - params[0] = IROUND(((GLfloat *) p)[0]); - break; - - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]); - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]); - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]); - case TYPE_FLOATN: - params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = v.value_int_n.ints[i]; - break; - - case TYPE_INT64: - params[0] = INT64_TO_INT(((GLint64 *) p)[0]); - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_INT(*(GLboolean*) p); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -#if FEATURE_ARB_sync -void GLAPIENTRY -_mesa_GetInteger64v(GLenum pname, GLint64 *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetInteger64v", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - params[3] = IROUND64(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - params[2] = IROUND64(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - params[1] = IROUND64(((GLfloat *) p)[1]); - case TYPE_FLOAT: - params[0] = IROUND64(((GLfloat *) p)[0]); - break; - - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]); - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]); - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]); - case TYPE_FLOATN: - params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = ((GLboolean*) p)[0]; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT64(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_INT64(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} -#endif /* FEATURE_ARB_sync */ - -void GLAPIENTRY -_mesa_GetDoublev(GLenum pname, GLdouble *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetDoublev", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = d->offset; - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = ((GLfloat *) p)[3]; - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = ((GLfloat *) p)[2]; - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = ((GLfloat *) p)[1]; - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = ((GLfloat *) p)[0]; - break; - - case TYPE_DOUBLEN: - params[0] = ((GLdouble *) p)[0]; - break; - - case TYPE_INT_4: - params[3] = ((GLint *) p)[3]; - case TYPE_INT_3: - params[2] = ((GLint *) p)[2]; - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = ((GLint *) p)[1]; - case TYPE_INT: - case TYPE_ENUM: - params[0] = ((GLint *) p)[0]; - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = v.value_int_n.ints[i]; - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = *(GLboolean*) p; - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[i]; - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = m->m[transpose[i]]; - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = (*(GLbitfield *) p >> shift) & 1; - break; - } -} - -static enum value_type -find_value_indexed(const char *func, GLenum pname, int index, union value *v) -{ - GET_CURRENT_CONTEXT(ctx); - - switch (pname) { - - case GL_BLEND: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.EXT_draw_buffers2) - goto invalid_enum; - v->value_int = (ctx->Color.BlendEnabled >> index) & 1; - return TYPE_INT; - - case GL_BLEND_SRC: - /* fall-through */ - case GL_BLEND_SRC_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].SrcRGB; - return TYPE_INT; - case GL_BLEND_SRC_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].SrcA; - return TYPE_INT; - case GL_BLEND_DST: - /* fall-through */ - case GL_BLEND_DST_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].DstRGB; - return TYPE_INT; - case GL_BLEND_DST_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].DstA; - return TYPE_INT; - case GL_BLEND_EQUATION_RGB: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].EquationRGB; - return TYPE_INT; - case GL_BLEND_EQUATION_ALPHA: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.ARB_draw_buffers_blend) - goto invalid_enum; - v->value_int = ctx->Color.Blend[index].EquationA; - return TYPE_INT; - - case GL_COLOR_WRITEMASK: - if (index >= ctx->Const.MaxDrawBuffers) - goto invalid_value; - if (!ctx->Extensions.EXT_draw_buffers2) - goto invalid_enum; - v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0; - v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0; - v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0; - v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0; - return TYPE_INT_4; - - case GL_TRANSFORM_FEEDBACK_BUFFER_START: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index]; - return TYPE_INT64; - - case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index]; - return TYPE_INT64; - - case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: - if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) - goto invalid_value; - if (!ctx->Extensions.EXT_transform_feedback) - goto invalid_enum; - v->value_int = ctx->TransformFeedback.CurrentObject->Buffers[index]->Name; - return TYPE_INT; - } - - invalid_enum: - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return TYPE_INVALID; - invalid_value: - _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func, - _mesa_lookup_enum_by_nr(pname)); - return TYPE_INVALID; -} - -void GLAPIENTRY -_mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetBooleanIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = INT_TO_BOOLEAN(v.value_int); - break; - case TYPE_INT_4: - params[0] = INT_TO_BOOLEAN(v.value_int_4[0]); - params[1] = INT_TO_BOOLEAN(v.value_int_4[1]); - params[2] = INT_TO_BOOLEAN(v.value_int_4[2]); - params[3] = INT_TO_BOOLEAN(v.value_int_4[3]); - break; - case TYPE_INT64: - params[0] = INT64_TO_BOOLEAN(v.value_int); - break; - default: - ; /* nothing - GL error was recorded */ - } -} - -void GLAPIENTRY -_mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetIntegerIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = v.value_int; - break; - case TYPE_INT_4: - params[0] = v.value_int_4[0]; - params[1] = v.value_int_4[1]; - params[2] = v.value_int_4[2]; - params[3] = v.value_int_4[3]; - break; - case TYPE_INT64: - params[0] = INT64_TO_INT(v.value_int); - break; - default: - ; /* nothing - GL error was recorded */ - } -} - -#if FEATURE_ARB_sync -void GLAPIENTRY -_mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params ) -{ - union value v; - enum value_type type = - find_value_indexed("glGetIntegerIndexedv", pname, index, &v); - - switch (type) { - case TYPE_INT: - params[0] = v.value_int; - break; - case TYPE_INT_4: - params[0] = v.value_int_4[0]; - params[1] = v.value_int_4[1]; - params[2] = v.value_int_4[2]; - params[3] = v.value_int_4[3]; - break; - case TYPE_INT64: - params[0] = v.value_int; - break; - default: - ; /* nothing - GL error was recorded */ - } -} -#endif /* FEATURE_ARB_sync */ - -#if FEATURE_ES1 -void GLAPIENTRY -_mesa_GetFixedv(GLenum pname, GLfixed *params) -{ - const struct value_desc *d; - union value v; - GLmatrix *m; - int shift, i; - void *p; - - d = find_value("glGetDoublev", pname, &p, &v); - switch (d->type) { - case TYPE_INVALID: - break; - case TYPE_CONST: - params[0] = INT_TO_FIXED(d->offset); - break; - - case TYPE_FLOAT_4: - case TYPE_FLOATN_4: - params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]); - case TYPE_FLOAT_3: - case TYPE_FLOATN_3: - params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]); - case TYPE_FLOAT_2: - case TYPE_FLOATN_2: - params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]); - case TYPE_FLOAT: - case TYPE_FLOATN: - params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]); - break; - - case TYPE_DOUBLEN: - params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]); - break; - - case TYPE_INT_4: - params[3] = INT_TO_FIXED(((GLint *) p)[3]); - case TYPE_INT_3: - params[2] = INT_TO_FIXED(((GLint *) p)[2]); - case TYPE_INT_2: - case TYPE_ENUM_2: - params[1] = INT_TO_FIXED(((GLint *) p)[1]); - case TYPE_INT: - case TYPE_ENUM: - params[0] = INT_TO_FIXED(((GLint *) p)[0]); - break; - - case TYPE_INT_N: - for (i = 0; i < v.value_int_n.n; i++) - params[i] = INT_TO_FIXED(v.value_int_n.ints[i]); - break; - - case TYPE_INT64: - params[0] = ((GLint64 *) p)[0]; - break; - - case TYPE_BOOLEAN: - params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]); - break; - - case TYPE_MATRIX: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_FIXED(m->m[i]); - break; - - case TYPE_MATRIX_T: - m = *(GLmatrix **) p; - for (i = 0; i < 16; i++) - params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]); - break; - - case TYPE_BIT_0: - case TYPE_BIT_1: - case TYPE_BIT_2: - case TYPE_BIT_3: - case TYPE_BIT_4: - case TYPE_BIT_5: - shift = d->type - TYPE_BIT_0; - params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1); - break; - } -} -#endif +/*
+ * Copyright (C) 2010 Brian Paul All Rights Reserved.
+ * Copyright (C) 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Author: Kristian Høgsberg <krh@bitplanet.net>
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "enable.h"
+#include "enums.h"
+#include "extensions.h"
+#include "get.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "state.h"
+#include "texcompress.h"
+#include "framebuffer.h"
+
+/* This is a table driven implemetation of the glGet*v() functions.
+ * The basic idea is that most getters just look up an int somewhere
+ * in struct gl_context and then convert it to a bool or float according to
+ * which of glGetIntegerv() glGetBooleanv() etc is being called.
+ * Instead of generating code to do this, we can just record the enum
+ * value and the offset into struct gl_context in an array of structs. Then
+ * in glGet*(), we lookup the struct for the enum in question, and use
+ * the offset to get the int we need.
+ *
+ * Sometimes we need to look up a float, a boolean, a bit in a
+ * bitfield, a matrix or other types instead, so we need to track the
+ * type of the value in struct gl_context. And sometimes the value isn't in
+ * struct gl_context but in the drawbuffer, the array object, current texture
+ * unit, or maybe it's a computed value. So we need to also track
+ * where or how to find the value. Finally, we sometimes need to
+ * check that one of a number of extensions are enabled, the GL
+ * version or flush or call _mesa_update_state(). This is done by
+ * attaching optional extra information to the value description
+ * struct, it's sort of like an array of opcodes that describe extra
+ * checks or actions.
+ *
+ * Putting all this together we end up with struct value_desc below,
+ * and with a couple of macros to help, the table of struct value_desc
+ * is about as concise as the specification in the old python script.
+ */
+
+#undef CONST
+
+#define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
+#define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
+ ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
+ (GLint) ((F) * 65536.0f) )
+
+#define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
+#define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
+ ((I) < SHRT_MIN) ? INT_MIN : \
+ (GLint) ((I) * 65536) )
+
+#define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
+#define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
+
+#define BOOLEAN_TO_INT(B) ( (GLint) (B) )
+#define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
+#define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
+#define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
+
+#define ENUM_TO_INT64(E) ( (GLint64) (E) )
+#define ENUM_TO_FIXED(E) (E)
+
+enum value_type {
+ TYPE_INVALID,
+ TYPE_API_MASK,
+ TYPE_INT,
+ TYPE_INT_2,
+ TYPE_INT_3,
+ TYPE_INT_4,
+ TYPE_INT_N,
+ TYPE_INT64,
+ TYPE_ENUM,
+ TYPE_ENUM_2,
+ TYPE_BOOLEAN,
+ TYPE_BIT_0,
+ TYPE_BIT_1,
+ TYPE_BIT_2,
+ TYPE_BIT_3,
+ TYPE_BIT_4,
+ TYPE_BIT_5,
+ TYPE_FLOAT,
+ TYPE_FLOAT_2,
+ TYPE_FLOAT_3,
+ TYPE_FLOAT_4,
+ TYPE_FLOATN,
+ TYPE_FLOATN_2,
+ TYPE_FLOATN_3,
+ TYPE_FLOATN_4,
+ TYPE_DOUBLEN,
+ TYPE_MATRIX,
+ TYPE_MATRIX_T,
+ TYPE_CONST
+};
+
+enum value_location {
+ LOC_BUFFER,
+ LOC_CONTEXT,
+ LOC_ARRAY,
+ LOC_TEXUNIT,
+ LOC_CUSTOM
+};
+
+enum value_extra {
+ EXTRA_END = 0x8000,
+ EXTRA_VERSION_30,
+ EXTRA_VERSION_31,
+ EXTRA_VERSION_32,
+ EXTRA_VERSION_ES2,
+ EXTRA_NEW_BUFFERS,
+ EXTRA_VALID_DRAW_BUFFER,
+ EXTRA_VALID_TEXTURE_UNIT,
+ EXTRA_FLUSH_CURRENT,
+};
+
+#define NO_EXTRA NULL
+#define NO_OFFSET 0
+
+struct value_desc {
+ GLenum pname;
+ GLubyte location; /**< enum value_location */
+ GLubyte type; /**< enum value_type */
+ int offset;
+ const int *extra;
+};
+
+union value {
+ GLfloat value_float;
+ GLfloat value_float_4[4];
+ GLmatrix *value_matrix;
+ GLint value_int;
+ GLint value_int_4[4];
+ GLint64 value_int64;
+ GLenum value_enum;
+
+ /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
+ struct {
+ GLint n, ints[100];
+ } value_int_n;
+ GLboolean value_bool;
+};
+
+#define BUFFER_FIELD(field, type) \
+ LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
+#define CONTEXT_FIELD(field, type) \
+ LOC_CONTEXT, type, offsetof(struct gl_context, field)
+#define ARRAY_FIELD(field, type) \
+ LOC_ARRAY, type, offsetof(struct gl_array_object, field)
+#define CONST(value) \
+ LOC_CONTEXT, TYPE_CONST, value
+
+#define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
+#define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
+#define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
+
+#define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
+#define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
+#define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
+#define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
+#define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
+#define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
+#define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
+#define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
+#define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
+#define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
+#define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
+#define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
+#define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
+#define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
+#define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
+#define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
+#define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
+#define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
+
+#define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
+#define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
+#define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
+
+#define EXT(f) \
+ offsetof(struct gl_extensions, f)
+
+#define EXTRA_EXT(e) \
+ static const int extra_##e[] = { \
+ EXT(e), EXTRA_END \
+ }
+
+#define EXTRA_EXT2(e1, e2) \
+ static const int extra_##e1##_##e2[] = { \
+ EXT(e1), EXT(e2), EXTRA_END \
+ }
+
+/* The 'extra' mechanism is a way to specify extra checks (such as
+ * extensions or specific gl versions) or actions (flush current, new
+ * buffers) that we need to do before looking up an enum. We need to
+ * declare them all up front so we can refer to them in the value_desc
+ * structs below. */
+
+static const int extra_new_buffers[] = {
+ EXTRA_NEW_BUFFERS,
+ EXTRA_END
+};
+
+static const int extra_valid_draw_buffer[] = {
+ EXTRA_VALID_DRAW_BUFFER,
+ EXTRA_END
+};
+
+static const int extra_valid_texture_unit[] = {
+ EXTRA_VALID_TEXTURE_UNIT,
+ EXTRA_END
+};
+
+static const int extra_flush_current_valid_texture_unit[] = {
+ EXTRA_FLUSH_CURRENT,
+ EXTRA_VALID_TEXTURE_UNIT,
+ EXTRA_END
+};
+
+static const int extra_flush_current[] = {
+ EXTRA_FLUSH_CURRENT,
+ EXTRA_END
+};
+
+static const int extra_new_buffers_OES_read_format[] = {
+ EXTRA_NEW_BUFFERS,
+ EXT(OES_read_format),
+ EXTRA_END
+};
+
+static const int extra_EXT_secondary_color_flush_current[] = {
+ EXT(EXT_secondary_color),
+ EXTRA_FLUSH_CURRENT,
+ EXTRA_END
+};
+
+static const int extra_EXT_fog_coord_flush_current[] = {
+ EXT(EXT_fog_coord),
+ EXTRA_FLUSH_CURRENT,
+ EXTRA_END
+};
+
+static const int extra_EXT_texture_integer[] = {
+ EXT(EXT_texture_integer),
+ EXTRA_END
+};
+
+static const int extra_EXT_gpu_shader4[] = {
+ EXT(EXT_gpu_shader4),
+ EXTRA_END
+};
+
+
+EXTRA_EXT(ARB_ES2_compatibility);
+EXTRA_EXT(ARB_multitexture);
+EXTRA_EXT(ARB_texture_cube_map);
+EXTRA_EXT(MESA_texture_array);
+EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
+EXTRA_EXT(EXT_secondary_color);
+EXTRA_EXT(EXT_fog_coord);
+EXTRA_EXT(EXT_texture_lod_bias);
+EXTRA_EXT(EXT_texture_filter_anisotropic);
+EXTRA_EXT(IBM_rasterpos_clip);
+EXTRA_EXT(NV_point_sprite);
+EXTRA_EXT(SGIS_generate_mipmap);
+EXTRA_EXT(NV_vertex_program);
+EXTRA_EXT(NV_fragment_program);
+EXTRA_EXT(NV_texture_rectangle);
+EXTRA_EXT(EXT_stencil_two_side);
+EXTRA_EXT(NV_light_max_exponent);
+EXTRA_EXT(EXT_depth_bounds_test);
+EXTRA_EXT(ARB_depth_clamp);
+EXTRA_EXT(ATI_fragment_shader);
+EXTRA_EXT(EXT_framebuffer_blit);
+EXTRA_EXT(ARB_shader_objects);
+EXTRA_EXT(EXT_provoking_vertex);
+EXTRA_EXT(ARB_fragment_shader);
+EXTRA_EXT(ARB_fragment_program);
+EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
+EXTRA_EXT(EXT_framebuffer_object);
+EXTRA_EXT(APPLE_vertex_array_object);
+EXTRA_EXT(ARB_seamless_cube_map);
+EXTRA_EXT(EXT_compiled_vertex_array);
+EXTRA_EXT(ARB_sync);
+EXTRA_EXT(ARB_vertex_shader);
+EXTRA_EXT(EXT_transform_feedback);
+EXTRA_EXT(ARB_transform_feedback2);
+EXTRA_EXT(EXT_pixel_buffer_object);
+EXTRA_EXT(ARB_vertex_program);
+EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
+EXTRA_EXT2(ARB_fragment_program, NV_fragment_program);
+EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
+EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
+EXTRA_EXT(ARB_vertex_buffer_object);
+EXTRA_EXT(ARB_geometry_shader4);
+EXTRA_EXT(ARB_copy_buffer);
+EXTRA_EXT(EXT_framebuffer_sRGB);
+
+static const int
+extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
+ EXT(ARB_vertex_program),
+ EXT(ARB_fragment_program),
+ EXT(NV_vertex_program),
+ EXTRA_END
+};
+
+static const int
+extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
+ EXT(NV_vertex_program),
+ EXT(ARB_vertex_program),
+ EXT(ARB_fragment_program),
+ EXT(NV_vertex_program),
+ EXTRA_END
+};
+
+static const int
+extra_NV_primitive_restart[] = {
+ EXT(NV_primitive_restart),
+ EXTRA_END
+};
+
+static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
+static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
+static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
+
+static const int
+extra_ARB_vertex_program_version_es2[] = {
+ EXT(ARB_vertex_program),
+ EXTRA_VERSION_ES2,
+ EXTRA_END
+};
+
+#define API_OPENGL_BIT (1 << API_OPENGL)
+#define API_OPENGLES_BIT (1 << API_OPENGLES)
+#define API_OPENGLES2_BIT (1 << API_OPENGLES2)
+
+/* This is the big table describing all the enums we accept in
+ * glGet*v(). The table is partitioned into six parts: enums
+ * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
+ * between OpenGL and GLES, enums exclusive to GLES, etc for the
+ * remaining combinations. When we add the enums to the hash table in
+ * _mesa_init_get_hash(), we only add the enums for the API we're
+ * instantiating and the different sections are guarded by #if
+ * FEATURE_GL etc to make sure we only compile in the enums we may
+ * need. */
+
+static const struct value_desc values[] = {
+ /* Enums shared between OpenGL, GLES1 and GLES2 */
+ { 0, 0, TYPE_API_MASK,
+ API_OPENGL_BIT | API_OPENGLES_BIT | API_OPENGLES2_BIT, NO_EXTRA},
+ { GL_ALPHA_BITS, BUFFER_INT(Visual.alphaBits), extra_new_buffers },
+ { GL_BLEND, CONTEXT_BIT0(Color.BlendEnabled), NO_EXTRA },
+ { GL_BLEND_SRC, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
+ { GL_BLUE_BITS, BUFFER_INT(Visual.blueBits), extra_new_buffers },
+ { GL_COLOR_CLEAR_VALUE, CONTEXT_FIELD(Color.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_COLOR_WRITEMASK, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
+ { GL_CULL_FACE, CONTEXT_BOOL(Polygon.CullFlag), NO_EXTRA },
+ { GL_CULL_FACE_MODE, CONTEXT_ENUM(Polygon.CullFaceMode), NO_EXTRA },
+ { GL_DEPTH_BITS, BUFFER_INT(Visual.depthBits), NO_EXTRA },
+ { GL_DEPTH_CLEAR_VALUE, CONTEXT_FIELD(Depth.Clear, TYPE_DOUBLEN), NO_EXTRA },
+ { GL_DEPTH_FUNC, CONTEXT_ENUM(Depth.Func), NO_EXTRA },
+ { GL_DEPTH_RANGE, CONTEXT_FIELD(Viewport.Near, TYPE_FLOATN_2), NO_EXTRA },
+ { GL_DEPTH_TEST, CONTEXT_BOOL(Depth.Test), NO_EXTRA },
+ { GL_DEPTH_WRITEMASK, CONTEXT_BOOL(Depth.Mask), NO_EXTRA },
+ { GL_DITHER, CONTEXT_BOOL(Color.DitherFlag), NO_EXTRA },
+ { GL_FRONT_FACE, CONTEXT_ENUM(Polygon.FrontFace), NO_EXTRA },
+ { GL_GREEN_BITS, BUFFER_INT(Visual.greenBits), extra_new_buffers },
+ { GL_LINE_WIDTH, CONTEXT_FLOAT(Line.Width), NO_EXTRA },
+ { GL_ALIASED_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidth), NO_EXTRA },
+ { GL_MAX_ELEMENTS_VERTICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
+ { GL_MAX_ELEMENTS_INDICES, CONTEXT_INT(Const.MaxArrayLockSize), NO_EXTRA },
+ { GL_MAX_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_context, Const.MaxTextureLevels), NO_EXTRA },
+ { GL_MAX_VIEWPORT_DIMS, CONTEXT_INT2(Const.MaxViewportWidth), NO_EXTRA },
+ { GL_PACK_ALIGNMENT, CONTEXT_INT(Pack.Alignment), NO_EXTRA },
+ { GL_ALIASED_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSize), NO_EXTRA },
+ { GL_POLYGON_OFFSET_FACTOR, CONTEXT_FLOAT(Polygon.OffsetFactor ), NO_EXTRA },
+ { GL_POLYGON_OFFSET_UNITS, CONTEXT_FLOAT(Polygon.OffsetUnits ), NO_EXTRA },
+ { GL_POLYGON_OFFSET_FILL, CONTEXT_BOOL(Polygon.OffsetFill), NO_EXTRA },
+ { GL_RED_BITS, BUFFER_INT(Visual.redBits), extra_new_buffers },
+ { GL_SCISSOR_BOX, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
+ { GL_SCISSOR_TEST, CONTEXT_BOOL(Scissor.Enabled), NO_EXTRA },
+ { GL_STENCIL_BITS, BUFFER_INT(Visual.stencilBits), NO_EXTRA },
+ { GL_STENCIL_CLEAR_VALUE, CONTEXT_INT(Stencil.Clear), NO_EXTRA },
+ { GL_STENCIL_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_FUNC, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_PASS_DEPTH_FAIL, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_PASS_DEPTH_PASS, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_REF, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_TEST, CONTEXT_BOOL(Stencil.Enabled), NO_EXTRA },
+ { GL_STENCIL_VALUE_MASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
+ { GL_STENCIL_WRITEMASK, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
+ { GL_SUBPIXEL_BITS, CONTEXT_INT(Const.SubPixelBits), NO_EXTRA },
+ { GL_TEXTURE_BINDING_2D, LOC_CUSTOM, TYPE_INT, TEXTURE_2D_INDEX, NO_EXTRA },
+ { GL_UNPACK_ALIGNMENT, CONTEXT_INT(Unpack.Alignment), NO_EXTRA },
+ { GL_VIEWPORT, LOC_CUSTOM, TYPE_INT_4, 0, NO_EXTRA },
+
+ /* GL_ARB_multitexture */
+ { GL_ACTIVE_TEXTURE_ARB,
+ LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture },
+
+ /* Note that all the OES_* extensions require that the Mesa "struct
+ * gl_extensions" include a member with the name of the extension.
+ * That structure does not yet include OES extensions (and we're
+ * not sure whether it will). If it does, all the OES_*
+ * extensions below should mark the dependency. */
+
+ /* GL_ARB_texture_cube_map */
+ { GL_TEXTURE_BINDING_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_INT,
+ TEXTURE_CUBE_INDEX, extra_ARB_texture_cube_map },
+ { GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_context, Const.MaxCubeTextureLevels),
+ extra_ARB_texture_cube_map }, /* XXX: OES_texture_cube_map */
+
+ /* XXX: OES_blend_subtract */
+ { GL_BLEND_SRC_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].SrcRGB), NO_EXTRA },
+ { GL_BLEND_DST_RGB_EXT, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
+ { GL_BLEND_SRC_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].SrcA), NO_EXTRA },
+ { GL_BLEND_DST_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].DstA), NO_EXTRA },
+
+ /* GL_BLEND_EQUATION_RGB, which is what we're really after, is
+ * defined identically to GL_BLEND_EQUATION. */
+ { GL_BLEND_EQUATION, CONTEXT_ENUM(Color.Blend[0].EquationRGB), NO_EXTRA },
+ { GL_BLEND_EQUATION_ALPHA_EXT, CONTEXT_ENUM(Color.Blend[0].EquationA), NO_EXTRA },
+
+ /* GL_ARB_texture_compression */
+ { GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+ { GL_COMPRESSED_TEXTURE_FORMATS_ARB, LOC_CUSTOM, TYPE_INT_N, 0, NO_EXTRA },
+
+ /* GL_ARB_multisample */
+ { GL_SAMPLE_ALPHA_TO_COVERAGE_ARB,
+ CONTEXT_BOOL(Multisample.SampleAlphaToCoverage), NO_EXTRA },
+ { GL_SAMPLE_COVERAGE_ARB, CONTEXT_BOOL(Multisample.SampleCoverage), NO_EXTRA },
+ { GL_SAMPLE_COVERAGE_VALUE_ARB,
+ CONTEXT_FLOAT(Multisample.SampleCoverageValue), NO_EXTRA },
+ { GL_SAMPLE_COVERAGE_INVERT_ARB,
+ CONTEXT_BOOL(Multisample.SampleCoverageInvert), NO_EXTRA },
+ { GL_SAMPLE_BUFFERS_ARB, BUFFER_INT(Visual.sampleBuffers), NO_EXTRA },
+ { GL_SAMPLES_ARB, BUFFER_INT(Visual.samples), NO_EXTRA },
+
+ /* GL_SGIS_generate_mipmap */
+ { GL_GENERATE_MIPMAP_HINT_SGIS, CONTEXT_ENUM(Hint.GenerateMipmap),
+ extra_SGIS_generate_mipmap },
+
+ /* GL_ARB_vertex_buffer_object */
+ { GL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+
+ /* GL_ARB_vertex_buffer_object */
+ /* GL_WEIGHT_ARRAY_BUFFER_BINDING_ARB - not supported */
+ { GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_vertex_buffer_object },
+
+ /* GL_ARB_copy_buffer */
+ { GL_COPY_READ_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
+ { GL_COPY_WRITE_BUFFER, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_copy_buffer },
+
+ /* GL_OES_read_format */
+ { GL_IMPLEMENTATION_COLOR_READ_TYPE_OES, LOC_CUSTOM, TYPE_INT, 0,
+ extra_new_buffers_OES_read_format },
+ { GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES, LOC_CUSTOM, TYPE_INT, 0,
+ extra_new_buffers_OES_read_format },
+
+ /* GL_EXT_framebuffer_object */
+ { GL_FRAMEBUFFER_BINDING_EXT, BUFFER_INT(Name),
+ extra_EXT_framebuffer_object },
+ { GL_RENDERBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
+ extra_EXT_framebuffer_object },
+ { GL_MAX_RENDERBUFFER_SIZE_EXT, CONTEXT_INT(Const.MaxRenderbufferSize),
+ extra_EXT_framebuffer_object },
+
+ /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's
+ * GLSL: */
+ { GL_MAX_CLIP_PLANES, CONTEXT_INT(Const.MaxClipPlanes), NO_EXTRA },
+
+#if FEATURE_GL || FEATURE_ES1
+ /* Enums in OpenGL and GLES1 */
+ { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES_BIT, NO_EXTRA },
+ { GL_LIGHT0, CONTEXT_BOOL(Light.Light[0].Enabled), NO_EXTRA },
+ { GL_LIGHT1, CONTEXT_BOOL(Light.Light[1].Enabled), NO_EXTRA },
+ { GL_LIGHT2, CONTEXT_BOOL(Light.Light[2].Enabled), NO_EXTRA },
+ { GL_LIGHT3, CONTEXT_BOOL(Light.Light[3].Enabled), NO_EXTRA },
+ { GL_LIGHT4, CONTEXT_BOOL(Light.Light[4].Enabled), NO_EXTRA },
+ { GL_LIGHT5, CONTEXT_BOOL(Light.Light[5].Enabled), NO_EXTRA },
+ { GL_LIGHT6, CONTEXT_BOOL(Light.Light[6].Enabled), NO_EXTRA },
+ { GL_LIGHT7, CONTEXT_BOOL(Light.Light[7].Enabled), NO_EXTRA },
+ { GL_LIGHTING, CONTEXT_BOOL(Light.Enabled), NO_EXTRA },
+ { GL_LIGHT_MODEL_AMBIENT,
+ CONTEXT_FIELD(Light.Model.Ambient[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_LIGHT_MODEL_TWO_SIDE, CONTEXT_BOOL(Light.Model.TwoSide), NO_EXTRA },
+ { GL_ALPHA_TEST, CONTEXT_BOOL(Color.AlphaEnabled), NO_EXTRA },
+ { GL_ALPHA_TEST_FUNC, CONTEXT_ENUM(Color.AlphaFunc), NO_EXTRA },
+ { GL_ALPHA_TEST_REF, CONTEXT_FIELD(Color.AlphaRef, TYPE_FLOATN), NO_EXTRA },
+ { GL_BLEND_DST, CONTEXT_ENUM(Color.Blend[0].DstRGB), NO_EXTRA },
+ { GL_CLIP_PLANE0, CONTEXT_BIT0(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_CLIP_PLANE1, CONTEXT_BIT1(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_CLIP_PLANE2, CONTEXT_BIT2(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_CLIP_PLANE3, CONTEXT_BIT3(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_CLIP_PLANE4, CONTEXT_BIT4(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_CLIP_PLANE5, CONTEXT_BIT5(Transform.ClipPlanesEnabled), NO_EXTRA },
+ { GL_COLOR_MATERIAL, CONTEXT_BOOL(Light.ColorMaterialEnabled), NO_EXTRA },
+ { GL_CURRENT_COLOR,
+ CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR0][0], TYPE_FLOATN_4),
+ extra_flush_current },
+ { GL_CURRENT_NORMAL,
+ CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_NORMAL][0], TYPE_FLOATN_3),
+ extra_flush_current },
+ { GL_CURRENT_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
+ extra_flush_current_valid_texture_unit },
+ { GL_DISTANCE_ATTENUATION_EXT, CONTEXT_FLOAT3(Point.Params[0]), NO_EXTRA },
+ { GL_FOG, CONTEXT_BOOL(Fog.Enabled), NO_EXTRA },
+ { GL_FOG_COLOR, CONTEXT_FIELD(Fog.Color[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_FOG_DENSITY, CONTEXT_FLOAT(Fog.Density), NO_EXTRA },
+ { GL_FOG_END, CONTEXT_FLOAT(Fog.End), NO_EXTRA },
+ { GL_FOG_HINT, CONTEXT_ENUM(Hint.Fog), NO_EXTRA },
+ { GL_FOG_MODE, CONTEXT_ENUM(Fog.Mode), NO_EXTRA },
+ { GL_FOG_START, CONTEXT_FLOAT(Fog.Start), NO_EXTRA },
+ { GL_LINE_SMOOTH, CONTEXT_BOOL(Line.SmoothFlag), NO_EXTRA },
+ { GL_LINE_SMOOTH_HINT, CONTEXT_ENUM(Hint.LineSmooth), NO_EXTRA },
+ { GL_LINE_WIDTH_RANGE, CONTEXT_FLOAT2(Const.MinLineWidthAA), NO_EXTRA },
+ { GL_COLOR_LOGIC_OP, CONTEXT_BOOL(Color.ColorLogicOpEnabled), NO_EXTRA },
+ { GL_LOGIC_OP_MODE, CONTEXT_ENUM(Color.LogicOp), NO_EXTRA },
+ { GL_MATRIX_MODE, CONTEXT_ENUM(Transform.MatrixMode), NO_EXTRA },
+ { GL_MAX_MODELVIEW_STACK_DEPTH, CONST(MAX_MODELVIEW_STACK_DEPTH), NO_EXTRA },
+ { GL_MAX_PROJECTION_STACK_DEPTH, CONST(MAX_PROJECTION_STACK_DEPTH), NO_EXTRA },
+ { GL_MAX_TEXTURE_STACK_DEPTH, CONST(MAX_TEXTURE_STACK_DEPTH), NO_EXTRA },
+ { GL_MODELVIEW_MATRIX, CONTEXT_MATRIX(ModelviewMatrixStack.Top), NO_EXTRA },
+ { GL_MODELVIEW_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_context, ModelviewMatrixStack.Depth), NO_EXTRA },
+ { GL_NORMALIZE, CONTEXT_BOOL(Transform.Normalize), NO_EXTRA },
+ { GL_PACK_SKIP_IMAGES_EXT, CONTEXT_INT(Pack.SkipImages), NO_EXTRA },
+ { GL_PERSPECTIVE_CORRECTION_HINT, CONTEXT_ENUM(Hint.PerspectiveCorrection), NO_EXTRA },
+ { GL_POINT_SIZE, CONTEXT_FLOAT(Point.Size), NO_EXTRA },
+ { GL_POINT_SIZE_RANGE, CONTEXT_FLOAT2(Const.MinPointSizeAA), NO_EXTRA },
+ { GL_POINT_SMOOTH, CONTEXT_BOOL(Point.SmoothFlag), NO_EXTRA },
+ { GL_POINT_SMOOTH_HINT, CONTEXT_ENUM(Hint.PointSmooth), NO_EXTRA },
+ { GL_POINT_SIZE_MIN_EXT, CONTEXT_FLOAT(Point.MinSize), NO_EXTRA },
+ { GL_POINT_SIZE_MAX_EXT, CONTEXT_FLOAT(Point.MaxSize), NO_EXTRA },
+ { GL_POINT_FADE_THRESHOLD_SIZE_EXT, CONTEXT_FLOAT(Point.Threshold), NO_EXTRA },
+ { GL_PROJECTION_MATRIX, CONTEXT_MATRIX(ProjectionMatrixStack.Top), NO_EXTRA },
+ { GL_PROJECTION_STACK_DEPTH, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_context, ProjectionMatrixStack.Depth), NO_EXTRA },
+ { GL_RESCALE_NORMAL, CONTEXT_BOOL(Transform.RescaleNormals), NO_EXTRA },
+ { GL_SHADE_MODEL, CONTEXT_ENUM(Light.ShadeModel), NO_EXTRA },
+ { GL_TEXTURE_2D, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
+ { GL_TEXTURE_MATRIX, LOC_CUSTOM, TYPE_MATRIX, 0, extra_valid_texture_unit },
+ { GL_TEXTURE_STACK_DEPTH, LOC_CUSTOM, TYPE_INT, 0,
+ extra_valid_texture_unit },
+
+ { GL_VERTEX_ARRAY, ARRAY_BOOL(Vertex.Enabled), NO_EXTRA },
+ { GL_VERTEX_ARRAY_SIZE, ARRAY_INT(Vertex.Size), NO_EXTRA },
+ { GL_VERTEX_ARRAY_TYPE, ARRAY_ENUM(Vertex.Type), NO_EXTRA },
+ { GL_VERTEX_ARRAY_STRIDE, ARRAY_INT(Vertex.Stride), NO_EXTRA },
+ { GL_NORMAL_ARRAY, ARRAY_BOOL(Normal.Enabled), NO_EXTRA },
+ { GL_NORMAL_ARRAY_TYPE, ARRAY_ENUM(Normal.Type), NO_EXTRA },
+ { GL_NORMAL_ARRAY_STRIDE, ARRAY_INT(Normal.Stride), NO_EXTRA },
+ { GL_COLOR_ARRAY, ARRAY_BOOL(Color.Enabled), NO_EXTRA },
+ { GL_COLOR_ARRAY_SIZE, ARRAY_INT(Color.Size), NO_EXTRA },
+ { GL_COLOR_ARRAY_TYPE, ARRAY_ENUM(Color.Type), NO_EXTRA },
+ { GL_COLOR_ARRAY_STRIDE, ARRAY_INT(Color.Stride), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY,
+ LOC_CUSTOM, TYPE_BOOLEAN, offsetof(struct gl_client_array, Enabled), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY_SIZE,
+ LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Size), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY_TYPE,
+ LOC_CUSTOM, TYPE_ENUM, offsetof(struct gl_client_array, Type), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY_STRIDE,
+ LOC_CUSTOM, TYPE_INT, offsetof(struct gl_client_array, Stride), NO_EXTRA },
+
+ /* GL_ARB_ES2_compatibility */
+ { GL_SHADER_COMPILER, CONST(1), extra_ARB_ES2_compatibility },
+ { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying),
+ extra_ARB_ES2_compatibility },
+ { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_ES2_compatibility },
+ { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_ES2_compatibility },
+
+ /* GL_ARB_multitexture */
+ { GL_MAX_TEXTURE_UNITS_ARB,
+ CONTEXT_INT(Const.MaxTextureUnits), extra_ARB_multitexture },
+ { GL_CLIENT_ACTIVE_TEXTURE_ARB,
+ LOC_CUSTOM, TYPE_INT, 0, extra_ARB_multitexture },
+
+ /* GL_ARB_texture_cube_map */
+ { GL_TEXTURE_CUBE_MAP_ARB, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
+ /* S, T, and R are always set at the same time */
+ { GL_TEXTURE_GEN_STR_OES, LOC_TEXUNIT, TYPE_BIT_0,
+ offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
+
+ /* GL_ARB_multisample */
+ { GL_MULTISAMPLE_ARB, CONTEXT_BOOL(Multisample.Enabled), NO_EXTRA },
+ { GL_SAMPLE_ALPHA_TO_ONE_ARB, CONTEXT_BOOL(Multisample.SampleAlphaToOne), NO_EXTRA },
+
+ /* GL_ARB_vertex_buffer_object */
+ { GL_VERTEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, Vertex.BufferObj), NO_EXTRA },
+ { GL_NORMAL_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, Normal.BufferObj), NO_EXTRA },
+ { GL_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, Color.BufferObj), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT, NO_OFFSET, NO_EXTRA },
+
+ /* GL_OES_point_sprite */
+ { GL_POINT_SPRITE_NV,
+ CONTEXT_BOOL(Point.PointSprite),
+ extra_NV_point_sprite_ARB_point_sprite },
+
+ /* GL_ARB_fragment_shader */
+ { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB,
+ CONTEXT_INT(Const.FragmentProgram.MaxUniformComponents),
+ extra_ARB_fragment_shader },
+
+ /* GL_ARB_vertex_shader */
+ { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB,
+ CONTEXT_INT(Const.VertexProgram.MaxUniformComponents),
+ extra_ARB_vertex_shader },
+ { GL_MAX_VARYING_FLOATS_ARB, LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_vertex_shader },
+
+ /* GL_EXT_texture_lod_bias */
+ { GL_MAX_TEXTURE_LOD_BIAS_EXT, CONTEXT_FLOAT(Const.MaxTextureLodBias),
+ extra_EXT_texture_lod_bias },
+
+ /* GL_EXT_texture_filter_anisotropic */
+ { GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT,
+ CONTEXT_FLOAT(Const.MaxTextureMaxAnisotropy),
+ extra_EXT_texture_filter_anisotropic },
+#endif /* FEATURE_GL || FEATURE_ES1 */
+
+#if FEATURE_ES1
+ { 0, 0, TYPE_API_MASK, API_OPENGLES_BIT },
+ /* XXX: OES_matrix_get */
+ { GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES },
+ { GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES },
+ { GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES },
+
+ /* OES_point_size_array */
+ { GL_POINT_SIZE_ARRAY_OES, ARRAY_FIELD(PointSize.Enabled, TYPE_BOOLEAN) },
+ { GL_POINT_SIZE_ARRAY_TYPE_OES, ARRAY_FIELD(PointSize.Type, TYPE_ENUM) },
+ { GL_POINT_SIZE_ARRAY_STRIDE_OES, ARRAY_FIELD(PointSize.Stride, TYPE_INT) },
+ { GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES, LOC_CUSTOM, TYPE_INT, 0 },
+#endif /* FEATURE_ES1 */
+
+#if FEATURE_GL || FEATURE_ES2
+ { 0, 0, TYPE_API_MASK, API_OPENGL_BIT | API_OPENGLES2_BIT, NO_EXTRA },
+ /* This entry isn't spec'ed for GLES 2, but is needed for Mesa's GLSL: */
+ { GL_MAX_LIGHTS, CONTEXT_INT(Const.MaxLights), NO_EXTRA },
+ { GL_MAX_TEXTURE_COORDS_ARB, /* == GL_MAX_TEXTURE_COORDS_NV */
+ CONTEXT_INT(Const.MaxTextureCoordUnits),
+ extra_ARB_fragment_program_NV_fragment_program },
+
+ /* GL_ARB_draw_buffers */
+ { GL_MAX_DRAW_BUFFERS_ARB, CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA },
+
+ { GL_BLEND_COLOR_EXT, CONTEXT_FIELD(Color.BlendColor[0], TYPE_FLOATN_4), NO_EXTRA },
+ /* GL_ARB_fragment_program */
+ { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, /* == GL_MAX_TEXTURE_IMAGE_UNITS_NV */
+ CONTEXT_INT(Const.MaxTextureImageUnits),
+ extra_ARB_fragment_program_NV_fragment_program },
+ { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB,
+ CONTEXT_INT(Const.MaxVertexTextureImageUnits), extra_ARB_vertex_shader },
+ { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB,
+ CONTEXT_INT(Const.MaxCombinedTextureImageUnits),
+ extra_ARB_vertex_shader },
+
+ /* GL_ARB_shader_objects
+ * Actually, this token isn't part of GL_ARB_shader_objects, but is
+ * close enough for now. */
+ { GL_CURRENT_PROGRAM, LOC_CUSTOM, TYPE_INT, 0, extra_ARB_shader_objects },
+
+ /* OpenGL 2.0 */
+ { GL_STENCIL_BACK_FUNC, CONTEXT_ENUM(Stencil.Function[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_VALUE_MASK, CONTEXT_INT(Stencil.ValueMask[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_WRITEMASK, CONTEXT_INT(Stencil.WriteMask[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_REF, CONTEXT_INT(Stencil.Ref[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_FAIL, CONTEXT_ENUM(Stencil.FailFunc[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_PASS_DEPTH_FAIL, CONTEXT_ENUM(Stencil.ZFailFunc[1]), NO_EXTRA },
+ { GL_STENCIL_BACK_PASS_DEPTH_PASS, CONTEXT_ENUM(Stencil.ZPassFunc[1]), NO_EXTRA },
+
+ { GL_MAX_VERTEX_ATTRIBS_ARB,
+ CONTEXT_INT(Const.VertexProgram.MaxAttribs),
+ extra_ARB_vertex_program_version_es2 },
+
+ /* OES_texture_3D */
+ { GL_TEXTURE_BINDING_3D, LOC_CUSTOM, TYPE_INT, TEXTURE_3D_INDEX, NO_EXTRA },
+ { GL_MAX_3D_TEXTURE_SIZE, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_context, Const.Max3DTextureLevels), NO_EXTRA },
+
+ /* GL_ARB_fragment_program/OES_standard_derivatives */
+ { GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB,
+ CONTEXT_ENUM(Hint.FragmentShaderDerivative), extra_ARB_fragment_shader },
+#endif /* FEATURE_GL || FEATURE_ES2 */
+
+#if FEATURE_ES2
+ /* Enums unique to OpenGL ES 2.0 */
+ { 0, 0, TYPE_API_MASK, API_OPENGLES2_BIT, NO_EXTRA },
+ { GL_MAX_FRAGMENT_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+ { GL_MAX_VARYING_VECTORS, CONTEXT_INT(Const.MaxVarying), NO_EXTRA },
+ { GL_MAX_VERTEX_UNIFORM_VECTORS, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+ { GL_SHADER_COMPILER, CONST(1), NO_EXTRA },
+ /* OES_get_program_binary */
+ { GL_NUM_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
+ { GL_SHADER_BINARY_FORMATS, CONST(0), NO_EXTRA },
+#endif /* FEATURE_ES2 */
+
+#if FEATURE_GL
+ /* Remaining enums are only in OpenGL */
+ { 0, 0, TYPE_API_MASK, API_OPENGL_BIT, NO_EXTRA },
+ { GL_ACCUM_RED_BITS, BUFFER_INT(Visual.accumRedBits), NO_EXTRA },
+ { GL_ACCUM_GREEN_BITS, BUFFER_INT(Visual.accumGreenBits), NO_EXTRA },
+ { GL_ACCUM_BLUE_BITS, BUFFER_INT(Visual.accumBlueBits), NO_EXTRA },
+ { GL_ACCUM_ALPHA_BITS, BUFFER_INT(Visual.accumAlphaBits), NO_EXTRA },
+ { GL_ACCUM_CLEAR_VALUE, CONTEXT_FIELD(Accum.ClearColor[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_ALPHA_BIAS, CONTEXT_FLOAT(Pixel.AlphaBias), NO_EXTRA },
+ { GL_ALPHA_SCALE, CONTEXT_FLOAT(Pixel.AlphaScale), NO_EXTRA },
+ { GL_ATTRIB_STACK_DEPTH, CONTEXT_INT(AttribStackDepth), NO_EXTRA },
+ { GL_AUTO_NORMAL, CONTEXT_BOOL(Eval.AutoNormal), NO_EXTRA },
+ { GL_AUX_BUFFERS, BUFFER_INT(Visual.numAuxBuffers), NO_EXTRA },
+ { GL_BLUE_BIAS, CONTEXT_FLOAT(Pixel.BlueBias), NO_EXTRA },
+ { GL_BLUE_SCALE, CONTEXT_FLOAT(Pixel.BlueScale), NO_EXTRA },
+ { GL_CLIENT_ATTRIB_STACK_DEPTH, CONTEXT_INT(ClientAttribStackDepth), NO_EXTRA },
+ { GL_COLOR_MATERIAL_FACE, CONTEXT_ENUM(Light.ColorMaterialFace), NO_EXTRA },
+ { GL_COLOR_MATERIAL_PARAMETER, CONTEXT_ENUM(Light.ColorMaterialMode), NO_EXTRA },
+ { GL_CURRENT_INDEX,
+ CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]),
+ extra_flush_current },
+ { GL_CURRENT_RASTER_COLOR,
+ CONTEXT_FIELD(Current.RasterColor[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_CURRENT_RASTER_DISTANCE, CONTEXT_FLOAT(Current.RasterDistance), NO_EXTRA },
+ { GL_CURRENT_RASTER_INDEX, CONST(1), NO_EXTRA },
+ { GL_CURRENT_RASTER_POSITION, CONTEXT_FLOAT4(Current.RasterPos[0]), NO_EXTRA },
+ { GL_CURRENT_RASTER_SECONDARY_COLOR,
+ CONTEXT_FIELD(Current.RasterSecondaryColor[0], TYPE_FLOATN_4), NO_EXTRA },
+ { GL_CURRENT_RASTER_TEXTURE_COORDS, LOC_CUSTOM, TYPE_FLOAT_4, 0,
+ extra_valid_texture_unit },
+ { GL_CURRENT_RASTER_POSITION_VALID, CONTEXT_BOOL(Current.RasterPosValid), NO_EXTRA },
+ { GL_DEPTH_BIAS, CONTEXT_FLOAT(Pixel.DepthBias), NO_EXTRA },
+ { GL_DEPTH_SCALE, CONTEXT_FLOAT(Pixel.DepthScale), NO_EXTRA },
+ { GL_DOUBLEBUFFER, BUFFER_INT(Visual.doubleBufferMode), NO_EXTRA },
+ { GL_DRAW_BUFFER, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
+ { GL_EDGE_FLAG, LOC_CUSTOM, TYPE_BOOLEAN, 0, NO_EXTRA },
+ { GL_FEEDBACK_BUFFER_SIZE, CONTEXT_INT(Feedback.BufferSize), NO_EXTRA },
+ { GL_FEEDBACK_BUFFER_TYPE, CONTEXT_ENUM(Feedback.Type), NO_EXTRA },
+ { GL_FOG_INDEX, CONTEXT_FLOAT(Fog.Index), NO_EXTRA },
+ { GL_GREEN_BIAS, CONTEXT_FLOAT(Pixel.GreenBias), NO_EXTRA },
+ { GL_GREEN_SCALE, CONTEXT_FLOAT(Pixel.GreenScale), NO_EXTRA },
+ { GL_INDEX_BITS, BUFFER_INT(Visual.indexBits), extra_new_buffers },
+ { GL_INDEX_CLEAR_VALUE, CONTEXT_INT(Color.ClearIndex), NO_EXTRA },
+ { GL_INDEX_MODE, CONST(0) , NO_EXTRA},
+ { GL_INDEX_OFFSET, CONTEXT_INT(Pixel.IndexOffset), NO_EXTRA },
+ { GL_INDEX_SHIFT, CONTEXT_INT(Pixel.IndexShift), NO_EXTRA },
+ { GL_INDEX_WRITEMASK, CONTEXT_INT(Color.IndexMask), NO_EXTRA },
+ { GL_LIGHT_MODEL_COLOR_CONTROL, CONTEXT_ENUM(Light.Model.ColorControl), NO_EXTRA },
+ { GL_LIGHT_MODEL_LOCAL_VIEWER, CONTEXT_BOOL(Light.Model.LocalViewer), NO_EXTRA },
+ { GL_LINE_STIPPLE, CONTEXT_BOOL(Line.StippleFlag), NO_EXTRA },
+ { GL_LINE_STIPPLE_PATTERN, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+ { GL_LINE_STIPPLE_REPEAT, CONTEXT_INT(Line.StippleFactor), NO_EXTRA },
+ { GL_LINE_WIDTH_GRANULARITY, CONTEXT_FLOAT(Const.LineWidthGranularity), NO_EXTRA },
+ { GL_LIST_BASE, CONTEXT_INT(List.ListBase), NO_EXTRA },
+ { GL_LIST_INDEX, LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA },
+ { GL_LIST_MODE, LOC_CUSTOM, TYPE_ENUM, 0, NO_EXTRA },
+ { GL_INDEX_LOGIC_OP, CONTEXT_BOOL(Color.IndexLogicOpEnabled), NO_EXTRA },
+ { GL_MAP1_COLOR_4, CONTEXT_BOOL(Eval.Map1Color4), NO_EXTRA },
+ { GL_MAP1_GRID_DOMAIN, CONTEXT_FLOAT2(Eval.MapGrid1u1), NO_EXTRA },
+ { GL_MAP1_GRID_SEGMENTS, CONTEXT_INT(Eval.MapGrid1un), NO_EXTRA },
+ { GL_MAP1_INDEX, CONTEXT_BOOL(Eval.Map1Index), NO_EXTRA },
+ { GL_MAP1_NORMAL, CONTEXT_BOOL(Eval.Map1Normal), NO_EXTRA },
+ { GL_MAP1_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map1TextureCoord1), NO_EXTRA },
+ { GL_MAP1_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map1TextureCoord2), NO_EXTRA },
+ { GL_MAP1_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map1TextureCoord3), NO_EXTRA },
+ { GL_MAP1_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map1TextureCoord4), NO_EXTRA },
+ { GL_MAP1_VERTEX_3, CONTEXT_BOOL(Eval.Map1Vertex3), NO_EXTRA },
+ { GL_MAP1_VERTEX_4, CONTEXT_BOOL(Eval.Map1Vertex4), NO_EXTRA },
+ { GL_MAP2_COLOR_4, CONTEXT_BOOL(Eval.Map2Color4), NO_EXTRA },
+ { GL_MAP2_GRID_DOMAIN, LOC_CUSTOM, TYPE_FLOAT_4, 0, NO_EXTRA },
+ { GL_MAP2_GRID_SEGMENTS, CONTEXT_INT2(Eval.MapGrid2un), NO_EXTRA },
+ { GL_MAP2_INDEX, CONTEXT_BOOL(Eval.Map2Index), NO_EXTRA },
+ { GL_MAP2_NORMAL, CONTEXT_BOOL(Eval.Map2Normal), NO_EXTRA },
+ { GL_MAP2_TEXTURE_COORD_1, CONTEXT_BOOL(Eval.Map2TextureCoord1), NO_EXTRA },
+ { GL_MAP2_TEXTURE_COORD_2, CONTEXT_BOOL(Eval.Map2TextureCoord2), NO_EXTRA },
+ { GL_MAP2_TEXTURE_COORD_3, CONTEXT_BOOL(Eval.Map2TextureCoord3), NO_EXTRA },
+ { GL_MAP2_TEXTURE_COORD_4, CONTEXT_BOOL(Eval.Map2TextureCoord4), NO_EXTRA },
+ { GL_MAP2_VERTEX_3, CONTEXT_BOOL(Eval.Map2Vertex3), NO_EXTRA },
+ { GL_MAP2_VERTEX_4, CONTEXT_BOOL(Eval.Map2Vertex4), NO_EXTRA },
+ { GL_MAP_COLOR, CONTEXT_BOOL(Pixel.MapColorFlag), NO_EXTRA },
+ { GL_MAP_STENCIL, CONTEXT_BOOL(Pixel.MapStencilFlag), NO_EXTRA },
+ { GL_MAX_ATTRIB_STACK_DEPTH, CONST(MAX_ATTRIB_STACK_DEPTH), NO_EXTRA },
+ { GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, CONST(MAX_CLIENT_ATTRIB_STACK_DEPTH), NO_EXTRA },
+
+ { GL_MAX_EVAL_ORDER, CONST(MAX_EVAL_ORDER), NO_EXTRA },
+ { GL_MAX_LIST_NESTING, CONST(MAX_LIST_NESTING), NO_EXTRA },
+ { GL_MAX_NAME_STACK_DEPTH, CONST(MAX_NAME_STACK_DEPTH), NO_EXTRA },
+ { GL_MAX_PIXEL_MAP_TABLE, CONST(MAX_PIXEL_MAP_TABLE), NO_EXTRA },
+ { GL_NAME_STACK_DEPTH, CONTEXT_INT(Select.NameStackDepth), NO_EXTRA },
+ { GL_PACK_LSB_FIRST, CONTEXT_BOOL(Pack.LsbFirst), NO_EXTRA },
+ { GL_PACK_ROW_LENGTH, CONTEXT_INT(Pack.RowLength), NO_EXTRA },
+ { GL_PACK_SKIP_PIXELS, CONTEXT_INT(Pack.SkipPixels), NO_EXTRA },
+ { GL_PACK_SKIP_ROWS, CONTEXT_INT(Pack.SkipRows), NO_EXTRA },
+ { GL_PACK_SWAP_BYTES, CONTEXT_BOOL(Pack.SwapBytes), NO_EXTRA },
+ { GL_PACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Pack.ImageHeight), NO_EXTRA },
+ { GL_PACK_INVERT_MESA, CONTEXT_BOOL(Pack.Invert), NO_EXTRA },
+ { GL_PIXEL_MAP_A_TO_A_SIZE, CONTEXT_INT(PixelMaps.AtoA.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_B_TO_B_SIZE, CONTEXT_INT(PixelMaps.BtoB.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_G_TO_G_SIZE, CONTEXT_INT(PixelMaps.GtoG.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_I_TO_A_SIZE, CONTEXT_INT(PixelMaps.ItoA.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_I_TO_B_SIZE, CONTEXT_INT(PixelMaps.ItoB.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_I_TO_G_SIZE, CONTEXT_INT(PixelMaps.ItoG.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_I_TO_I_SIZE, CONTEXT_INT(PixelMaps.ItoI.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_I_TO_R_SIZE, CONTEXT_INT(PixelMaps.ItoR.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_R_TO_R_SIZE, CONTEXT_INT(PixelMaps.RtoR.Size), NO_EXTRA },
+ { GL_PIXEL_MAP_S_TO_S_SIZE, CONTEXT_INT(PixelMaps.StoS.Size), NO_EXTRA },
+ { GL_POINT_SIZE_GRANULARITY, CONTEXT_FLOAT(Const.PointSizeGranularity), NO_EXTRA },
+ { GL_POLYGON_MODE, CONTEXT_ENUM2(Polygon.FrontMode), NO_EXTRA },
+ { GL_POLYGON_OFFSET_BIAS_EXT, CONTEXT_FLOAT(Polygon.OffsetUnits), NO_EXTRA },
+ { GL_POLYGON_OFFSET_POINT, CONTEXT_BOOL(Polygon.OffsetPoint), NO_EXTRA },
+ { GL_POLYGON_OFFSET_LINE, CONTEXT_BOOL(Polygon.OffsetLine), NO_EXTRA },
+ { GL_POLYGON_SMOOTH, CONTEXT_BOOL(Polygon.SmoothFlag), NO_EXTRA },
+ { GL_POLYGON_SMOOTH_HINT, CONTEXT_ENUM(Hint.PolygonSmooth), NO_EXTRA },
+ { GL_POLYGON_STIPPLE, CONTEXT_BOOL(Polygon.StippleFlag), NO_EXTRA },
+ { GL_READ_BUFFER, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+ { GL_RED_BIAS, CONTEXT_FLOAT(Pixel.RedBias), NO_EXTRA },
+ { GL_RED_SCALE, CONTEXT_FLOAT(Pixel.RedScale), NO_EXTRA },
+ { GL_RENDER_MODE, CONTEXT_ENUM(RenderMode), NO_EXTRA },
+ { GL_RGBA_MODE, CONST(1), NO_EXTRA },
+ { GL_SELECTION_BUFFER_SIZE, CONTEXT_INT(Select.BufferSize), NO_EXTRA },
+ { GL_SHARED_TEXTURE_PALETTE_EXT, CONTEXT_BOOL(Texture.SharedPalette), NO_EXTRA },
+
+ { GL_STEREO, BUFFER_INT(Visual.stereoMode), NO_EXTRA },
+
+ { GL_TEXTURE_1D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
+ { GL_TEXTURE_3D, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
+ { GL_TEXTURE_1D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
+ { GL_TEXTURE_2D_ARRAY_EXT, LOC_CUSTOM, TYPE_BOOLEAN, NO_OFFSET, NO_EXTRA },
+
+ { GL_TEXTURE_BINDING_1D, LOC_CUSTOM, TYPE_INT, TEXTURE_1D_INDEX, NO_EXTRA },
+ { GL_TEXTURE_BINDING_1D_ARRAY, LOC_CUSTOM, TYPE_INT,
+ TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
+ { GL_TEXTURE_BINDING_2D_ARRAY, LOC_CUSTOM, TYPE_INT,
+ TEXTURE_1D_ARRAY_INDEX, extra_MESA_texture_array },
+ { GL_MAX_ARRAY_TEXTURE_LAYERS_EXT,
+ CONTEXT_INT(Const.MaxArrayTextureLayers), extra_MESA_texture_array },
+
+ { GL_TEXTURE_GEN_S, LOC_TEXUNIT, TYPE_BIT_0,
+ offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
+ { GL_TEXTURE_GEN_T, LOC_TEXUNIT, TYPE_BIT_1,
+ offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
+ { GL_TEXTURE_GEN_R, LOC_TEXUNIT, TYPE_BIT_2,
+ offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
+ { GL_TEXTURE_GEN_Q, LOC_TEXUNIT, TYPE_BIT_3,
+ offsetof(struct gl_texture_unit, TexGenEnabled), NO_EXTRA },
+ { GL_UNPACK_LSB_FIRST, CONTEXT_BOOL(Unpack.LsbFirst), NO_EXTRA },
+ { GL_UNPACK_ROW_LENGTH, CONTEXT_INT(Unpack.RowLength), NO_EXTRA },
+ { GL_UNPACK_SKIP_PIXELS, CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA },
+ { GL_UNPACK_SKIP_ROWS, CONTEXT_INT(Unpack.SkipRows), NO_EXTRA },
+ { GL_UNPACK_SWAP_BYTES, CONTEXT_BOOL(Unpack.SwapBytes), NO_EXTRA },
+ { GL_UNPACK_SKIP_IMAGES_EXT, CONTEXT_INT(Unpack.SkipImages), NO_EXTRA },
+ { GL_UNPACK_IMAGE_HEIGHT_EXT, CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA },
+ { GL_UNPACK_CLIENT_STORAGE_APPLE, CONTEXT_BOOL(Unpack.ClientStorage), NO_EXTRA },
+ { GL_ZOOM_X, CONTEXT_FLOAT(Pixel.ZoomX), NO_EXTRA },
+ { GL_ZOOM_Y, CONTEXT_FLOAT(Pixel.ZoomY), NO_EXTRA },
+
+ /* Vertex arrays */
+ { GL_VERTEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+ { GL_NORMAL_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+ { GL_COLOR_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+ { GL_INDEX_ARRAY, ARRAY_BOOL(Index.Enabled), NO_EXTRA },
+ { GL_INDEX_ARRAY_TYPE, ARRAY_ENUM(Index.Type), NO_EXTRA },
+ { GL_INDEX_ARRAY_STRIDE, ARRAY_INT(Index.Stride), NO_EXTRA },
+ { GL_INDEX_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+ { GL_TEXTURE_COORD_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+ { GL_EDGE_FLAG_ARRAY, ARRAY_BOOL(EdgeFlag.Enabled), NO_EXTRA },
+ { GL_EDGE_FLAG_ARRAY_STRIDE, ARRAY_INT(EdgeFlag.Stride), NO_EXTRA },
+ { GL_EDGE_FLAG_ARRAY_COUNT_EXT, CONST(0), NO_EXTRA },
+
+ /* GL_ARB_texture_compression */
+ { GL_TEXTURE_COMPRESSION_HINT_ARB, CONTEXT_INT(Hint.TextureCompression), NO_EXTRA },
+
+ /* GL_EXT_compiled_vertex_array */
+ { GL_ARRAY_ELEMENT_LOCK_FIRST_EXT, CONTEXT_INT(Array.LockFirst),
+ extra_EXT_compiled_vertex_array },
+ { GL_ARRAY_ELEMENT_LOCK_COUNT_EXT, CONTEXT_INT(Array.LockCount),
+ extra_EXT_compiled_vertex_array },
+
+ /* GL_ARB_transpose_matrix */
+ { GL_TRANSPOSE_MODELVIEW_MATRIX_ARB,
+ CONTEXT_MATRIX_T(ModelviewMatrixStack), NO_EXTRA },
+ { GL_TRANSPOSE_PROJECTION_MATRIX_ARB,
+ CONTEXT_MATRIX_T(ProjectionMatrixStack.Top), NO_EXTRA },
+ { GL_TRANSPOSE_TEXTURE_MATRIX_ARB, CONTEXT_MATRIX_T(TextureMatrixStack), NO_EXTRA },
+
+ /* GL_EXT_secondary_color */
+ { GL_COLOR_SUM_EXT, CONTEXT_BOOL(Fog.ColorSumEnabled),
+ extra_EXT_secondary_color_ARB_vertex_program },
+ { GL_CURRENT_SECONDARY_COLOR_EXT,
+ CONTEXT_FIELD(Current.Attrib[VERT_ATTRIB_COLOR1][0], TYPE_FLOATN_4),
+ extra_EXT_secondary_color_flush_current },
+ { GL_SECONDARY_COLOR_ARRAY_EXT, ARRAY_BOOL(SecondaryColor.Enabled),
+ extra_EXT_secondary_color },
+ { GL_SECONDARY_COLOR_ARRAY_TYPE_EXT, ARRAY_ENUM(SecondaryColor.Type),
+ extra_EXT_secondary_color },
+ { GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT, ARRAY_INT(SecondaryColor.Stride),
+ extra_EXT_secondary_color },
+ { GL_SECONDARY_COLOR_ARRAY_SIZE_EXT, ARRAY_INT(SecondaryColor.Size),
+ extra_EXT_secondary_color },
+
+ /* GL_EXT_fog_coord */
+ { GL_CURRENT_FOG_COORDINATE_EXT,
+ CONTEXT_FLOAT(Current.Attrib[VERT_ATTRIB_FOG][0]),
+ extra_EXT_fog_coord_flush_current },
+ { GL_FOG_COORDINATE_ARRAY_EXT, ARRAY_BOOL(FogCoord.Enabled),
+ extra_EXT_fog_coord },
+ { GL_FOG_COORDINATE_ARRAY_TYPE_EXT, ARRAY_ENUM(FogCoord.Type),
+ extra_EXT_fog_coord },
+ { GL_FOG_COORDINATE_ARRAY_STRIDE_EXT, ARRAY_INT(FogCoord.Stride),
+ extra_EXT_fog_coord },
+ { GL_FOG_COORDINATE_SOURCE_EXT, CONTEXT_ENUM(Fog.FogCoordinateSource),
+ extra_EXT_fog_coord },
+
+ /* GL_IBM_rasterpos_clip */
+ { GL_RASTER_POSITION_UNCLIPPED_IBM,
+ CONTEXT_BOOL(Transform.RasterPositionUnclipped),
+ extra_IBM_rasterpos_clip },
+
+ /* GL_NV_point_sprite */
+ { GL_POINT_SPRITE_R_MODE_NV,
+ CONTEXT_ENUM(Point.SpriteRMode), extra_NV_point_sprite },
+ { GL_POINT_SPRITE_COORD_ORIGIN, CONTEXT_ENUM(Point.SpriteOrigin),
+ extra_NV_point_sprite_ARB_point_sprite },
+
+ /* GL_NV_vertex_program */
+ { GL_VERTEX_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY0_NV, ARRAY_BOOL(VertexAttrib[0].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY1_NV, ARRAY_BOOL(VertexAttrib[1].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY2_NV, ARRAY_BOOL(VertexAttrib[2].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY3_NV, ARRAY_BOOL(VertexAttrib[3].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY4_NV, ARRAY_BOOL(VertexAttrib[4].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY5_NV, ARRAY_BOOL(VertexAttrib[5].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY6_NV, ARRAY_BOOL(VertexAttrib[6].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY7_NV, ARRAY_BOOL(VertexAttrib[7].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY8_NV, ARRAY_BOOL(VertexAttrib[8].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY9_NV, ARRAY_BOOL(VertexAttrib[9].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY10_NV, ARRAY_BOOL(VertexAttrib[10].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY11_NV, ARRAY_BOOL(VertexAttrib[11].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY12_NV, ARRAY_BOOL(VertexAttrib[12].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY13_NV, ARRAY_BOOL(VertexAttrib[13].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY14_NV, ARRAY_BOOL(VertexAttrib[14].Enabled),
+ extra_NV_vertex_program },
+ { GL_VERTEX_ATTRIB_ARRAY15_NV, ARRAY_BOOL(VertexAttrib[15].Enabled),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB0_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[0]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB1_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[1]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB2_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[2]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB3_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[3]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB4_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[4]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB5_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[5]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB6_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[6]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB7_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[7]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB8_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[8]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB9_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[9]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB10_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[10]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB11_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[11]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB12_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[12]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB13_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[13]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB14_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[14]),
+ extra_NV_vertex_program },
+ { GL_MAP1_VERTEX_ATTRIB15_4_NV, CONTEXT_BOOL(Eval.Map1Attrib[15]),
+ extra_NV_vertex_program },
+
+ /* GL_NV_fragment_program */
+ { GL_FRAGMENT_PROGRAM_NV, CONTEXT_BOOL(FragmentProgram.Enabled),
+ extra_NV_fragment_program },
+ { GL_FRAGMENT_PROGRAM_BINDING_NV, LOC_CUSTOM, TYPE_INT, 0,
+ extra_NV_fragment_program },
+ { GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV,
+ CONST(MAX_NV_FRAGMENT_PROGRAM_PARAMS),
+ extra_NV_fragment_program },
+
+ /* GL_NV_texture_rectangle */
+ { GL_TEXTURE_RECTANGLE_NV,
+ LOC_CUSTOM, TYPE_BOOLEAN, 0, extra_NV_texture_rectangle },
+ { GL_TEXTURE_BINDING_RECTANGLE_NV,
+ LOC_CUSTOM, TYPE_INT, TEXTURE_RECT_INDEX, extra_NV_texture_rectangle },
+ { GL_MAX_RECTANGLE_TEXTURE_SIZE_NV,
+ CONTEXT_INT(Const.MaxTextureRectSize), extra_NV_texture_rectangle },
+
+ /* GL_EXT_stencil_two_side */
+ { GL_STENCIL_TEST_TWO_SIDE_EXT, CONTEXT_BOOL(Stencil.TestTwoSide),
+ extra_EXT_stencil_two_side },
+ { GL_ACTIVE_STENCIL_FACE_EXT, LOC_CUSTOM, TYPE_ENUM, NO_OFFSET, NO_EXTRA },
+
+ /* GL_NV_light_max_exponent */
+ { GL_MAX_SHININESS_NV, CONTEXT_FLOAT(Const.MaxShininess),
+ extra_NV_light_max_exponent },
+ { GL_MAX_SPOT_EXPONENT_NV, CONTEXT_FLOAT(Const.MaxSpotExponent),
+ extra_NV_light_max_exponent },
+
+ /* GL_NV_primitive_restart */
+ { GL_PRIMITIVE_RESTART_NV, CONTEXT_BOOL(Array.PrimitiveRestart),
+ extra_NV_primitive_restart },
+ { GL_PRIMITIVE_RESTART_INDEX_NV, CONTEXT_INT(Array.RestartIndex),
+ extra_NV_primitive_restart },
+
+ /* GL_ARB_vertex_buffer_object */
+ { GL_INDEX_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, Index.BufferObj), NO_EXTRA },
+ { GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, EdgeFlag.BufferObj), NO_EXTRA },
+ { GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, SecondaryColor.BufferObj), NO_EXTRA },
+ { GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB, LOC_CUSTOM, TYPE_INT,
+ offsetof(struct gl_array_object, FogCoord.BufferObj), NO_EXTRA },
+
+ /* GL_EXT_pixel_buffer_object */
+ { GL_PIXEL_PACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
+ extra_EXT_pixel_buffer_object },
+ { GL_PIXEL_UNPACK_BUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
+ extra_EXT_pixel_buffer_object },
+
+ /* GL_ARB_vertex_program */
+ { GL_VERTEX_PROGRAM_ARB, /* == GL_VERTEX_PROGRAM_NV */
+ CONTEXT_BOOL(VertexProgram.Enabled),
+ extra_ARB_vertex_program_NV_vertex_program },
+ { GL_VERTEX_PROGRAM_POINT_SIZE_ARB, /* == GL_VERTEX_PROGRAM_POINT_SIZE_NV*/
+ CONTEXT_BOOL(VertexProgram.PointSizeEnabled),
+ extra_ARB_vertex_program_NV_vertex_program },
+ { GL_VERTEX_PROGRAM_TWO_SIDE_ARB, /* == GL_VERTEX_PROGRAM_TWO_SIDE_NV */
+ CONTEXT_BOOL(VertexProgram.TwoSideEnabled),
+ extra_ARB_vertex_program_NV_vertex_program },
+ { GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB, /* == GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV */
+ CONTEXT_INT(Const.MaxProgramMatrixStackDepth),
+ extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
+ { GL_MAX_PROGRAM_MATRICES_ARB, /* == GL_MAX_TRACK_MATRICES_NV */
+ CONTEXT_INT(Const.MaxProgramMatrices),
+ extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
+ { GL_CURRENT_MATRIX_STACK_DEPTH_ARB, /* == GL_CURRENT_MATRIX_STACK_DEPTH_NV */
+ LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
+
+ { GL_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
+ LOC_CUSTOM, TYPE_MATRIX, 0,
+ extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
+ { GL_TRANSPOSE_CURRENT_MATRIX_ARB, /* == GL_CURRENT_MATRIX_NV */
+ LOC_CUSTOM, TYPE_MATRIX, 0,
+ extra_ARB_vertex_program_ARB_fragment_program },
+
+ { GL_PROGRAM_ERROR_POSITION_ARB, /* == GL_PROGRAM_ERROR_POSITION_NV */
+ CONTEXT_INT(Program.ErrorPos),
+ extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program },
+
+ /* GL_ARB_fragment_program */
+ { GL_FRAGMENT_PROGRAM_ARB, CONTEXT_BOOL(FragmentProgram.Enabled),
+ extra_ARB_fragment_program },
+
+ /* GL_EXT_depth_bounds_test */
+ { GL_DEPTH_BOUNDS_TEST_EXT, CONTEXT_BOOL(Depth.BoundsTest),
+ extra_EXT_depth_bounds_test },
+ { GL_DEPTH_BOUNDS_EXT, CONTEXT_FLOAT2(Depth.BoundsMin),
+ extra_EXT_depth_bounds_test },
+
+ /* GL_ARB_depth_clamp*/
+ { GL_DEPTH_CLAMP, CONTEXT_BOOL(Transform.DepthClamp),
+ extra_ARB_depth_clamp },
+
+ /* GL_ARB_draw_buffers */
+ { GL_DRAW_BUFFER0_ARB, BUFFER_ENUM(ColorDrawBuffer[0]), NO_EXTRA },
+ { GL_DRAW_BUFFER1_ARB, BUFFER_ENUM(ColorDrawBuffer[1]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER2_ARB, BUFFER_ENUM(ColorDrawBuffer[2]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER3_ARB, BUFFER_ENUM(ColorDrawBuffer[3]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER4_ARB, BUFFER_ENUM(ColorDrawBuffer[4]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER5_ARB, BUFFER_ENUM(ColorDrawBuffer[5]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER6_ARB, BUFFER_ENUM(ColorDrawBuffer[6]),
+ extra_valid_draw_buffer },
+ { GL_DRAW_BUFFER7_ARB, BUFFER_ENUM(ColorDrawBuffer[7]),
+ extra_valid_draw_buffer },
+
+ /* GL_ATI_fragment_shader */
+ { GL_NUM_FRAGMENT_REGISTERS_ATI, CONST(6), extra_ATI_fragment_shader },
+ { GL_NUM_FRAGMENT_CONSTANTS_ATI, CONST(8), extra_ATI_fragment_shader },
+ { GL_NUM_PASSES_ATI, CONST(2), extra_ATI_fragment_shader },
+ { GL_NUM_INSTRUCTIONS_PER_PASS_ATI, CONST(8), extra_ATI_fragment_shader },
+ { GL_NUM_INSTRUCTIONS_TOTAL_ATI, CONST(16), extra_ATI_fragment_shader },
+ { GL_COLOR_ALPHA_PAIRING_ATI, CONST(GL_TRUE), extra_ATI_fragment_shader },
+ { GL_NUM_LOOPBACK_COMPONENTS_ATI, CONST(3), extra_ATI_fragment_shader },
+ { GL_NUM_INPUT_INTERPOLATOR_COMPONENTS_ATI,
+ CONST(3), extra_ATI_fragment_shader },
+
+ /* GL_EXT_framebuffer_object */
+ { GL_MAX_COLOR_ATTACHMENTS_EXT, CONTEXT_INT(Const.MaxColorAttachments),
+ extra_EXT_framebuffer_object },
+
+ /* GL_EXT_framebuffer_blit
+ * NOTE: GL_DRAW_FRAMEBUFFER_BINDING_EXT == GL_FRAMEBUFFER_BINDING_EXT */
+ { GL_READ_FRAMEBUFFER_BINDING_EXT, LOC_CUSTOM, TYPE_INT, 0,
+ extra_EXT_framebuffer_blit },
+
+ /* GL_EXT_provoking_vertex */
+ { GL_PROVOKING_VERTEX_EXT,
+ CONTEXT_BOOL(Light.ProvokingVertex), extra_EXT_provoking_vertex },
+ { GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION_EXT,
+ CONTEXT_BOOL(Const.QuadsFollowProvokingVertexConvention),
+ extra_EXT_provoking_vertex },
+
+ /* GL_ARB_framebuffer_object */
+ { GL_MAX_SAMPLES, CONTEXT_INT(Const.MaxSamples),
+ extra_ARB_framebuffer_object_EXT_framebuffer_multisample },
+
+ /* GL_APPLE_vertex_array_object */
+ { GL_VERTEX_ARRAY_BINDING_APPLE, ARRAY_INT(Name),
+ extra_APPLE_vertex_array_object },
+
+ /* GL_ARB_seamless_cube_map */
+ { GL_TEXTURE_CUBE_MAP_SEAMLESS,
+ CONTEXT_BOOL(Texture.CubeMapSeamless), extra_ARB_seamless_cube_map },
+
+ /* GL_ARB_sync */
+ { GL_MAX_SERVER_WAIT_TIMEOUT,
+ CONTEXT_INT64(Const.MaxServerWaitTimeout), extra_ARB_sync },
+
+ /* GL_EXT_texture_integer */
+ { GL_RGBA_INTEGER_MODE_EXT, BUFFER_BOOL(_IntegerColor),
+ extra_EXT_texture_integer },
+
+ /* GL_EXT_transform_feedback */
+ { GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, LOC_CUSTOM, TYPE_INT, 0,
+ extra_EXT_transform_feedback },
+ { GL_RASTERIZER_DISCARD, CONTEXT_BOOL(TransformFeedback.RasterDiscard),
+ extra_EXT_transform_feedback },
+ { GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS,
+ CONTEXT_INT(Const.MaxTransformFeedbackInterleavedComponents),
+ extra_EXT_transform_feedback },
+ { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS,
+ CONTEXT_INT(Const.MaxTransformFeedbackSeparateAttribs),
+ extra_EXT_transform_feedback },
+ { GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS,
+ CONTEXT_INT(Const.MaxTransformFeedbackSeparateComponents),
+ extra_EXT_transform_feedback },
+
+ /* GL_ARB_transform_feedback2 */
+ { GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED, LOC_CUSTOM, TYPE_BOOLEAN, 0,
+ extra_ARB_transform_feedback2 },
+ { GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE, LOC_CUSTOM, TYPE_BOOLEAN, 0,
+ extra_ARB_transform_feedback2 },
+ { GL_TRANSFORM_FEEDBACK_BINDING, LOC_CUSTOM, TYPE_INT, 0,
+ extra_ARB_transform_feedback2 },
+
+ /* GL_ARB_geometry_shader4 */
+ { GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB,
+ CONTEXT_INT(Const.MaxGeometryTextureImageUnits),
+ extra_ARB_geometry_shader4 },
+ { GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB,
+ CONTEXT_INT(Const.MaxGeometryOutputVertices),
+ extra_ARB_geometry_shader4 },
+ { GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB,
+ CONTEXT_INT(Const.MaxGeometryTotalOutputComponents),
+ extra_ARB_geometry_shader4 },
+ { GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB,
+ CONTEXT_INT(Const.GeometryProgram.MaxUniformComponents),
+ extra_ARB_geometry_shader4 },
+ { GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB,
+ CONTEXT_INT(Const.MaxGeometryVaryingComponents),
+ extra_ARB_geometry_shader4 },
+ { GL_MAX_VERTEX_VARYING_COMPONENTS_ARB,
+ CONTEXT_INT(Const.MaxVertexVaryingComponents),
+ extra_ARB_geometry_shader4 },
+
+ /* GL_EXT_gpu_shader4 / GL 3.0 */
+ { GL_MIN_PROGRAM_TEXEL_OFFSET,
+ CONTEXT_INT(Const.MinProgramTexelOffset),
+ extra_EXT_gpu_shader4 },
+ { GL_MAX_PROGRAM_TEXEL_OFFSET,
+ CONTEXT_INT(Const.MaxProgramTexelOffset),
+ extra_EXT_gpu_shader4 },
+
+ /* GL 3.0 */
+ { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
+ { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 },
+ { GL_MINOR_VERSION, CONTEXT_INT(VersionMinor), extra_version_30 },
+ { GL_CONTEXT_FLAGS, CONTEXT_INT(Const.ContextFlags), extra_version_30 },
+
+ /* GL3.0 / GL_EXT_framebuffer_sRGB */
+ { GL_FRAMEBUFFER_SRGB_EXT, CONTEXT_BOOL(Color.sRGBEnabled), extra_EXT_framebuffer_sRGB },
+ { GL_FRAMEBUFFER_SRGB_CAPABLE_EXT, BUFFER_INT(Visual.sRGBCapable), extra_EXT_framebuffer_sRGB },
+
+ /* GL 3.1 */
+ /* NOTE: different enum values for GL_PRIMITIVE_RESTART_NV
+ * vs. GL_PRIMITIVE_RESTART!
+ */
+ { GL_PRIMITIVE_RESTART, CONTEXT_BOOL(Array.PrimitiveRestart),
+ extra_version_31 },
+ { GL_PRIMITIVE_RESTART_INDEX, CONTEXT_INT(Array.RestartIndex),
+ extra_version_31 },
+
+
+ /* GL 3.2 */
+ { GL_CONTEXT_PROFILE_MASK, CONTEXT_INT(Const.ProfileMask),
+ extra_version_32 },
+#endif /* FEATURE_GL */
+};
+
+/* All we need now is a way to look up the value struct from the enum.
+ * The code generated by gcc for the old generated big switch
+ * statement is a big, balanced, open coded if/else tree, essentially
+ * an unrolled binary search. It would be natural to sort the new
+ * enum table and use bsearch(), but we will use a read-only hash
+ * table instead. bsearch() has a nice guaranteed worst case
+ * performance, but we're also guaranteed to hit that worst case
+ * (log2(n) iterations) for about half the enums. Instead, using an
+ * open addressing hash table, we can find the enum on the first try
+ * for 80% of the enums, 1 collision for 10% and never more than 5
+ * collisions for any enum (typical numbers). And the code is very
+ * simple, even though it feels a little magic. */
+
+static unsigned short table[1024];
+static const int prime_factor = 89, prime_step = 281;
+
+#ifdef GET_DEBUG
+static void
+print_table_stats(void)
+{
+ int i, j, collisions[11], count, hash, mask;
+ const struct value_desc *d;
+
+ count = 0;
+ mask = Elements(table) - 1;
+ memset(collisions, 0, sizeof collisions);
+
+ for (i = 0; i < Elements(table); i++) {
+ if (!table[i])
+ continue;
+ count++;
+ d = &values[table[i]];
+ hash = (d->pname * prime_factor);
+ j = 0;
+ while (1) {
+ if (values[table[hash & mask]].pname == d->pname)
+ break;
+ hash += prime_step;
+ j++;
+ }
+
+ if (j < 10)
+ collisions[j]++;
+ else
+ collisions[10]++;
+ }
+
+ printf("number of enums: %d (total %d)\n", count, Elements(values));
+ for (i = 0; i < Elements(collisions) - 1; i++)
+ if (collisions[i] > 0)
+ printf(" %d enums with %d %scollisions\n",
+ collisions[i], i, i == 10 ? "or more " : "");
+}
+#endif
+
+/**
+ * Initialize the enum hash for a given API
+ *
+ * This is called from one_time_init() to insert the enum values that
+ * are valid for the API in question into the enum hash table.
+ *
+ * \param the current context, for determining the API in question
+ */
+void _mesa_init_get_hash(struct gl_context *ctx)
+{
+ int i, hash, index, mask;
+ int api_mask = 0, api_bit;
+
+ mask = Elements(table) - 1;
+ api_bit = 1 << ctx->API;
+
+ for (i = 0; i < Elements(values); i++) {
+ if (values[i].type == TYPE_API_MASK) {
+ api_mask = values[i].offset;
+ continue;
+ }
+ if (!(api_mask & api_bit))
+ continue;
+
+ hash = (values[i].pname * prime_factor) & mask;
+ while (1) {
+ index = hash & mask;
+ if (!table[index]) {
+ table[index] = i;
+ break;
+ }
+ hash += prime_step;
+ }
+ }
+
+#ifdef GET_DEBUG
+ print_table_stats();
+#endif
+}
+
+/**
+ * Handle irregular enums
+ *
+ * Some values don't conform to the "well-known type at context
+ * pointer + offset" pattern, so we have this function to catch all
+ * the corner cases. Typically, it's a computed value or a one-off
+ * pointer to a custom struct or something.
+ *
+ * In this case we can't return a pointer to the value, so we'll have
+ * to use the temporary variable 'v' declared back in the calling
+ * glGet*v() function to store the result.
+ *
+ * \param ctx the current context
+ * \param d the struct value_desc that describes the enum
+ * \param v pointer to the tmp declared in the calling glGet*v() function
+ */
+static void
+find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
+{
+ struct gl_buffer_object **buffer_obj;
+ struct gl_client_array *array;
+ GLuint unit, *p;
+
+ switch (d->pname) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_TEXTURE_RECTANGLE_NV:
+ v->value_bool = _mesa_IsEnabled(d->pname);
+ break;
+
+ case GL_LINE_STIPPLE_PATTERN:
+ /* This is the only GLushort, special case it here by promoting
+ * to an int rather than introducing a new type. */
+ v->value_int = ctx->Line.StipplePattern;
+ break;
+
+ case GL_CURRENT_RASTER_TEXTURE_COORDS:
+ unit = ctx->Texture.CurrentUnit;
+ v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
+ v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
+ v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
+ v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
+ break;
+
+ case GL_CURRENT_TEXTURE_COORDS:
+ unit = ctx->Texture.CurrentUnit;
+ v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
+ v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
+ v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
+ v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
+ break;
+
+ case GL_COLOR_WRITEMASK:
+ v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
+ v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
+ v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
+ v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
+ break;
+
+ case GL_EDGE_FLAG:
+ v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
+ break;
+
+ case GL_READ_BUFFER:
+ v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
+ break;
+
+ case GL_MAP2_GRID_DOMAIN:
+ v->value_float_4[0] = ctx->Eval.MapGrid2u1;
+ v->value_float_4[1] = ctx->Eval.MapGrid2u2;
+ v->value_float_4[2] = ctx->Eval.MapGrid2v1;
+ v->value_float_4[3] = ctx->Eval.MapGrid2v2;
+ break;
+
+ case GL_TEXTURE_STACK_DEPTH:
+ unit = ctx->Texture.CurrentUnit;
+ v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
+ break;
+ case GL_TEXTURE_MATRIX:
+ unit = ctx->Texture.CurrentUnit;
+ v->value_matrix = ctx->TextureMatrixStack[unit].Top;
+ break;
+
+ case GL_TEXTURE_COORD_ARRAY:
+ case GL_TEXTURE_COORD_ARRAY_SIZE:
+ case GL_TEXTURE_COORD_ARRAY_TYPE:
+ case GL_TEXTURE_COORD_ARRAY_STRIDE:
+ array = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture];
+ v->value_int = *(GLuint *) ((char *) array + d->offset);
+ break;
+
+ case GL_ACTIVE_TEXTURE_ARB:
+ v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
+ break;
+ case GL_CLIENT_ACTIVE_TEXTURE_ARB:
+ v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
+ break;
+
+ case GL_MODELVIEW_STACK_DEPTH:
+ case GL_PROJECTION_STACK_DEPTH:
+ v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
+ break;
+
+ case GL_MAX_TEXTURE_SIZE:
+ case GL_MAX_3D_TEXTURE_SIZE:
+ case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
+ p = (GLuint *) ((char *) ctx + d->offset);
+ v->value_int = 1 << (*p - 1);
+ break;
+
+ case GL_SCISSOR_BOX:
+ v->value_int_4[0] = ctx->Scissor.X;
+ v->value_int_4[1] = ctx->Scissor.Y;
+ v->value_int_4[2] = ctx->Scissor.Width;
+ v->value_int_4[3] = ctx->Scissor.Height;
+ break;
+
+ case GL_LIST_INDEX:
+ v->value_int =
+ ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
+ break;
+ case GL_LIST_MODE:
+ if (!ctx->CompileFlag)
+ v->value_enum = 0;
+ else if (ctx->ExecuteFlag)
+ v->value_enum = GL_COMPILE_AND_EXECUTE;
+ else
+ v->value_enum = GL_COMPILE;
+ break;
+
+ case GL_VIEWPORT:
+ v->value_int_4[0] = ctx->Viewport.X;
+ v->value_int_4[1] = ctx->Viewport.Y;
+ v->value_int_4[2] = ctx->Viewport.Width;
+ v->value_int_4[3] = ctx->Viewport.Height;
+ break;
+
+ case GL_ACTIVE_STENCIL_FACE_EXT:
+ v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
+ break;
+
+ case GL_STENCIL_FAIL:
+ v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_FUNC:
+ v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_PASS_DEPTH_FAIL:
+ v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_PASS_DEPTH_PASS:
+ v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_REF:
+ v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_VALUE_MASK:
+ v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
+ break;
+ case GL_STENCIL_WRITEMASK:
+ v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
+ break;
+
+ case GL_NUM_EXTENSIONS:
+ v->value_int = _mesa_get_extension_count(ctx);
+ break;
+
+ case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+ v->value_int = _mesa_get_color_read_type(ctx);
+ break;
+ case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+ v->value_int = _mesa_get_color_read_format(ctx);
+ break;
+
+ case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
+ v->value_int = ctx->CurrentStack->Depth + 1;
+ break;
+ case GL_CURRENT_MATRIX_ARB:
+ case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
+ v->value_matrix = ctx->CurrentStack->Top;
+ break;
+
+ case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
+ v->value_int = _mesa_get_compressed_formats(ctx, NULL, GL_FALSE);
+ break;
+ case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
+ v->value_int_n.n =
+ _mesa_get_compressed_formats(ctx, v->value_int_n.ints, GL_FALSE);
+ ASSERT(v->value_int_n.n <= 100);
+ break;
+
+ case GL_MAX_VARYING_FLOATS_ARB:
+ v->value_int = ctx->Const.MaxVarying * 4;
+ break;
+
+ /* Various object names */
+
+ case GL_TEXTURE_BINDING_1D:
+ case GL_TEXTURE_BINDING_2D:
+ case GL_TEXTURE_BINDING_3D:
+ case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
+ case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
+ case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
+ case GL_TEXTURE_BINDING_RECTANGLE_NV:
+ unit = ctx->Texture.CurrentUnit;
+ v->value_int =
+ ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
+ break;
+
+ /* GL_ARB_vertex_buffer_object */
+ case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
+ case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
+ case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
+ case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
+ case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
+ case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
+ case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
+ buffer_obj = (struct gl_buffer_object **)
+ ((char *) ctx->Array.ArrayObj + d->offset);
+ v->value_int = (*buffer_obj)->Name;
+ break;
+ case GL_ARRAY_BUFFER_BINDING_ARB:
+ v->value_int = ctx->Array.ArrayBufferObj->Name;
+ break;
+ case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
+ v->value_int =
+ ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].BufferObj->Name;
+ break;
+ case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
+ v->value_int = ctx->Array.ElementArrayBufferObj->Name;
+ break;
+
+ /* ARB_copy_buffer */
+ case GL_COPY_READ_BUFFER:
+ v->value_int = ctx->CopyReadBuffer->Name;
+ break;
+ case GL_COPY_WRITE_BUFFER:
+ v->value_int = ctx->CopyWriteBuffer->Name;
+ break;
+
+ case GL_FRAGMENT_PROGRAM_BINDING_NV:
+ v->value_int =
+ ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
+ break;
+ case GL_VERTEX_PROGRAM_BINDING_NV:
+ v->value_int =
+ ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
+ break;
+ case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
+ v->value_int = ctx->Pack.BufferObj->Name;
+ break;
+ case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
+ v->value_int = ctx->Unpack.BufferObj->Name;
+ break;
+ case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
+ v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
+ break;
+ case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
+ v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
+ break;
+ case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
+ v->value_int = ctx->TransformFeedback.CurrentObject->Active;
+ break;
+ case GL_TRANSFORM_FEEDBACK_BINDING:
+ v->value_int = ctx->TransformFeedback.CurrentObject->Name;
+ break;
+ case GL_CURRENT_PROGRAM:
+ v->value_int =
+ ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
+ break;
+ case GL_READ_FRAMEBUFFER_BINDING_EXT:
+ v->value_int = ctx->ReadBuffer->Name;
+ break;
+ case GL_RENDERBUFFER_BINDING_EXT:
+ v->value_int =
+ ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
+ break;
+ case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
+ v->value_int = ctx->Array.ArrayObj->PointSize.BufferObj->Name;
+ break;
+
+ case GL_MAX_VERTEX_UNIFORM_VECTORS:
+ v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
+ break;
+
+ case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
+ v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
+ break;
+ }
+}
+
+/**
+ * Check extra constraints on a struct value_desc descriptor
+ *
+ * If a struct value_desc has a non-NULL extra pointer, it means that
+ * there are a number of extra constraints to check or actions to
+ * perform. The extras is just an integer array where each integer
+ * encode different constraints or actions.
+ *
+ * \param ctx current context
+ * \param func name of calling glGet*v() function for error reporting
+ * \param d the struct value_desc that has the extra constraints
+ *
+ * \return GL_FALSE if one of the constraints was not satisfied,
+ * otherwise GL_TRUE.
+ */
+static GLboolean
+check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
+{
+ const GLuint version = ctx->VersionMajor * 10 + ctx->VersionMinor;
+ int total, enabled;
+ const int *e;
+
+ total = 0;
+ enabled = 0;
+ for (e = d->extra; *e != EXTRA_END; e++)
+ switch (*e) {
+ case EXTRA_VERSION_30:
+ if (version >= 30) {
+ total++;
+ enabled++;
+ }
+ break;
+ case EXTRA_VERSION_31:
+ if (version >= 31) {
+ total++;
+ enabled++;
+ }
+ break;
+ case EXTRA_VERSION_32:
+ if (version >= 32) {
+ total++;
+ enabled++;
+ }
+ break;
+ case EXTRA_VERSION_ES2:
+ if (ctx->API == API_OPENGLES2) {
+ total++;
+ enabled++;
+ }
+ break;
+ case EXTRA_NEW_BUFFERS:
+ if (ctx->NewState & _NEW_BUFFERS)
+ _mesa_update_state(ctx);
+ break;
+ case EXTRA_FLUSH_CURRENT:
+ FLUSH_CURRENT(ctx, 0);
+ break;
+ case EXTRA_VALID_DRAW_BUFFER:
+ if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
+ func, d->pname - GL_DRAW_BUFFER0_ARB);
+ return GL_FALSE;
+ }
+ break;
+ case EXTRA_VALID_TEXTURE_UNIT:
+ if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
+ func, ctx->Texture.CurrentUnit);
+ return GL_FALSE;
+ }
+ break;
+ case EXTRA_END:
+ break;
+ default: /* *e is a offset into the extension struct */
+ total++;
+ if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
+ enabled++;
+ break;
+ }
+
+ if (total > 0 && enabled == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
+ _mesa_lookup_enum_by_nr(d->pname));
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+static const struct value_desc error_value =
+ { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
+
+/**
+ * Find the struct value_desc corresponding to the enum 'pname'.
+ *
+ * We hash the enum value to get an index into the 'table' array,
+ * which holds the index in the 'values' array of struct value_desc.
+ * Once we've found the entry, we do the extra checks, if any, then
+ * look up the value and return a pointer to it.
+ *
+ * If the value has to be computed (for example, it's the result of a
+ * function call or we need to add 1 to it), we use the tmp 'v' to
+ * store the result.
+ *
+ * \param func name of glGet*v() func for error reporting
+ * \param pname the enum value we're looking up
+ * \param p is were we return the pointer to the value
+ * \param v a tmp union value variable in the calling glGet*v() function
+ *
+ * \return the struct value_desc corresponding to the enum or a struct
+ * value_desc of TYPE_INVALID if not found. This lets the calling
+ * glGet*v() function jump right into a switch statement and
+ * handle errors there instead of having to check for NULL.
+ */
+static const struct value_desc *
+find_value(const char *func, GLenum pname, void **p, union value *v)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *unit;
+ int mask, hash;
+ const struct value_desc *d;
+
+ mask = Elements(table) - 1;
+ hash = (pname * prime_factor);
+ while (1) {
+ d = &values[table[hash & mask]];
+
+ /* If the enum isn't valid, the hash walk ends with index 0,
+ * which is the API mask entry at the beginning of values[]. */
+ if (unlikely(d->type == TYPE_API_MASK)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
+ _mesa_lookup_enum_by_nr(pname));
+ return &error_value;
+ }
+
+ if (likely(d->pname == pname))
+ break;
+
+ hash += prime_step;
+ }
+
+ if (unlikely(d->extra && !check_extra(ctx, func, d)))
+ return &error_value;
+
+ switch (d->location) {
+ case LOC_BUFFER:
+ *p = ((char *) ctx->DrawBuffer + d->offset);
+ return d;
+ case LOC_CONTEXT:
+ *p = ((char *) ctx + d->offset);
+ return d;
+ case LOC_ARRAY:
+ *p = ((char *) ctx->Array.ArrayObj + d->offset);
+ return d;
+ case LOC_TEXUNIT:
+ unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ *p = ((char *) unit + d->offset);
+ return d;
+ case LOC_CUSTOM:
+ find_custom_value(ctx, d, v);
+ *p = v;
+ return d;
+ default:
+ assert(0);
+ break;
+ }
+
+ /* silence warning */
+ return &error_value;
+}
+
+static const int transpose[] = {
+ 0, 4, 8, 12,
+ 1, 5, 9, 13,
+ 2, 6, 10, 14,
+ 3, 7, 11, 15
+};
+
+void GLAPIENTRY
+_mesa_GetBooleanv(GLenum pname, GLboolean *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetBooleanv", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = INT_TO_BOOLEAN(d->offset);
+ break;
+
+ case TYPE_FLOAT_4:
+ case TYPE_FLOATN_4:
+ params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
+ case TYPE_FLOAT_3:
+ case TYPE_FLOATN_3:
+ params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
+ case TYPE_FLOAT_2:
+ case TYPE_FLOATN_2:
+ params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
+ case TYPE_FLOAT:
+ case TYPE_FLOATN:
+ params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
+ break;
+
+ case TYPE_INT_4:
+ params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
+ case TYPE_INT_3:
+ params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
+ break;
+
+ case TYPE_INT64:
+ params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = ((GLboolean*) p)[0];
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = (*(GLbitfield *) p >> shift) & 1;
+ break;
+ }
+}
+
+void GLAPIENTRY
+_mesa_GetFloatv(GLenum pname, GLfloat *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetFloatv", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = (GLfloat) d->offset;
+ break;
+
+ case TYPE_FLOAT_4:
+ case TYPE_FLOATN_4:
+ params[3] = ((GLfloat *) p)[3];
+ case TYPE_FLOAT_3:
+ case TYPE_FLOATN_3:
+ params[2] = ((GLfloat *) p)[2];
+ case TYPE_FLOAT_2:
+ case TYPE_FLOATN_2:
+ params[1] = ((GLfloat *) p)[1];
+ case TYPE_FLOAT:
+ case TYPE_FLOATN:
+ params[0] = ((GLfloat *) p)[0];
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = ((GLdouble *) p)[0];
+ break;
+
+ case TYPE_INT_4:
+ params[3] = (GLfloat) (((GLint *) p)[3]);
+ case TYPE_INT_3:
+ params[2] = (GLfloat) (((GLint *) p)[2]);
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = (GLfloat) (((GLint *) p)[1]);
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = (GLfloat) (((GLint *) p)[0]);
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
+ break;
+
+ case TYPE_INT64:
+ params[0] = ((GLint64 *) p)[0];
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = m->m[i];
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = m->m[transpose[i]];
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
+ break;
+ }
+}
+
+void GLAPIENTRY
+_mesa_GetIntegerv(GLenum pname, GLint *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetIntegerv", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = d->offset;
+ break;
+
+ case TYPE_FLOAT_4:
+ params[3] = IROUND(((GLfloat *) p)[3]);
+ case TYPE_FLOAT_3:
+ params[2] = IROUND(((GLfloat *) p)[2]);
+ case TYPE_FLOAT_2:
+ params[1] = IROUND(((GLfloat *) p)[1]);
+ case TYPE_FLOAT:
+ params[0] = IROUND(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_FLOATN_4:
+ params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
+ case TYPE_FLOATN_3:
+ params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
+ case TYPE_FLOATN_2:
+ params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
+ case TYPE_FLOATN:
+ params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
+ break;
+
+ case TYPE_INT_4:
+ params[3] = ((GLint *) p)[3];
+ case TYPE_INT_3:
+ params[2] = ((GLint *) p)[2];
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = ((GLint *) p)[1];
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = ((GLint *) p)[0];
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = v.value_int_n.ints[i];
+ break;
+
+ case TYPE_INT64:
+ params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_INT(m->m[i]);
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = (*(GLbitfield *) p >> shift) & 1;
+ break;
+ }
+}
+
+#if FEATURE_ARB_sync
+void GLAPIENTRY
+_mesa_GetInteger64v(GLenum pname, GLint64 *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetInteger64v", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = d->offset;
+ break;
+
+ case TYPE_FLOAT_4:
+ params[3] = IROUND64(((GLfloat *) p)[3]);
+ case TYPE_FLOAT_3:
+ params[2] = IROUND64(((GLfloat *) p)[2]);
+ case TYPE_FLOAT_2:
+ params[1] = IROUND64(((GLfloat *) p)[1]);
+ case TYPE_FLOAT:
+ params[0] = IROUND64(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_FLOATN_4:
+ params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
+ case TYPE_FLOATN_3:
+ params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
+ case TYPE_FLOATN_2:
+ params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
+ case TYPE_FLOATN:
+ params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
+ break;
+
+ case TYPE_INT_4:
+ params[3] = ((GLint *) p)[3];
+ case TYPE_INT_3:
+ params[2] = ((GLint *) p)[2];
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = ((GLint *) p)[1];
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = ((GLint *) p)[0];
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
+ break;
+
+ case TYPE_INT64:
+ params[0] = ((GLint64 *) p)[0];
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = ((GLboolean*) p)[0];
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_INT64(m->m[i]);
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = (*(GLbitfield *) p >> shift) & 1;
+ break;
+ }
+}
+#endif /* FEATURE_ARB_sync */
+
+void GLAPIENTRY
+_mesa_GetDoublev(GLenum pname, GLdouble *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetDoublev", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = d->offset;
+ break;
+
+ case TYPE_FLOAT_4:
+ case TYPE_FLOATN_4:
+ params[3] = ((GLfloat *) p)[3];
+ case TYPE_FLOAT_3:
+ case TYPE_FLOATN_3:
+ params[2] = ((GLfloat *) p)[2];
+ case TYPE_FLOAT_2:
+ case TYPE_FLOATN_2:
+ params[1] = ((GLfloat *) p)[1];
+ case TYPE_FLOAT:
+ case TYPE_FLOATN:
+ params[0] = ((GLfloat *) p)[0];
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = ((GLdouble *) p)[0];
+ break;
+
+ case TYPE_INT_4:
+ params[3] = ((GLint *) p)[3];
+ case TYPE_INT_3:
+ params[2] = ((GLint *) p)[2];
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = ((GLint *) p)[1];
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = ((GLint *) p)[0];
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = v.value_int_n.ints[i];
+ break;
+
+ case TYPE_INT64:
+ params[0] = ((GLint64 *) p)[0];
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = *(GLboolean*) p;
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = m->m[i];
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = m->m[transpose[i]];
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = (*(GLbitfield *) p >> shift) & 1;
+ break;
+ }
+}
+
+static enum value_type
+find_value_indexed(const char *func, GLenum pname, int index, union value *v)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ switch (pname) {
+
+ case GL_BLEND:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.EXT_draw_buffers2)
+ goto invalid_enum;
+ v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
+ return TYPE_INT;
+
+ case GL_BLEND_SRC:
+ /* fall-through */
+ case GL_BLEND_SRC_RGB:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].SrcRGB;
+ return TYPE_INT;
+ case GL_BLEND_SRC_ALPHA:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].SrcA;
+ return TYPE_INT;
+ case GL_BLEND_DST:
+ /* fall-through */
+ case GL_BLEND_DST_RGB:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].DstRGB;
+ return TYPE_INT;
+ case GL_BLEND_DST_ALPHA:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].DstA;
+ return TYPE_INT;
+ case GL_BLEND_EQUATION_RGB:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].EquationRGB;
+ return TYPE_INT;
+ case GL_BLEND_EQUATION_ALPHA:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.ARB_draw_buffers_blend)
+ goto invalid_enum;
+ v->value_int = ctx->Color.Blend[index].EquationA;
+ return TYPE_INT;
+
+ case GL_COLOR_WRITEMASK:
+ if (index >= ctx->Const.MaxDrawBuffers)
+ goto invalid_value;
+ if (!ctx->Extensions.EXT_draw_buffers2)
+ goto invalid_enum;
+ v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
+ v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
+ v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
+ v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
+ return TYPE_INT_4;
+
+ case GL_TRANSFORM_FEEDBACK_BUFFER_START:
+ if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
+ goto invalid_value;
+ if (!ctx->Extensions.EXT_transform_feedback)
+ goto invalid_enum;
+ v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
+ return TYPE_INT64;
+
+ case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
+ if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
+ goto invalid_value;
+ if (!ctx->Extensions.EXT_transform_feedback)
+ goto invalid_enum;
+ v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
+ return TYPE_INT64;
+
+ case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
+ if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs)
+ goto invalid_value;
+ if (!ctx->Extensions.EXT_transform_feedback)
+ goto invalid_enum;
+ v->value_int = ctx->TransformFeedback.CurrentObject->Buffers[index]->Name;
+ return TYPE_INT;
+ }
+
+ invalid_enum:
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
+ _mesa_lookup_enum_by_nr(pname));
+ return TYPE_INVALID;
+ invalid_value:
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
+ _mesa_lookup_enum_by_nr(pname));
+ return TYPE_INVALID;
+}
+
+void GLAPIENTRY
+_mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
+{
+ union value v;
+ enum value_type type =
+ find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
+
+ switch (type) {
+ case TYPE_INT:
+ params[0] = INT_TO_BOOLEAN(v.value_int);
+ break;
+ case TYPE_INT_4:
+ params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
+ params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
+ params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
+ params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
+ break;
+ case TYPE_INT64:
+ params[0] = INT64_TO_BOOLEAN(v.value_int);
+ break;
+ default:
+ ; /* nothing - GL error was recorded */
+ }
+}
+
+void GLAPIENTRY
+_mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
+{
+ union value v;
+ enum value_type type =
+ find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
+
+ switch (type) {
+ case TYPE_INT:
+ params[0] = v.value_int;
+ break;
+ case TYPE_INT_4:
+ params[0] = v.value_int_4[0];
+ params[1] = v.value_int_4[1];
+ params[2] = v.value_int_4[2];
+ params[3] = v.value_int_4[3];
+ break;
+ case TYPE_INT64:
+ params[0] = INT64_TO_INT(v.value_int);
+ break;
+ default:
+ ; /* nothing - GL error was recorded */
+ }
+}
+
+#if FEATURE_ARB_sync
+void GLAPIENTRY
+_mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
+{
+ union value v;
+ enum value_type type =
+ find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
+
+ switch (type) {
+ case TYPE_INT:
+ params[0] = v.value_int;
+ break;
+ case TYPE_INT_4:
+ params[0] = v.value_int_4[0];
+ params[1] = v.value_int_4[1];
+ params[2] = v.value_int_4[2];
+ params[3] = v.value_int_4[3];
+ break;
+ case TYPE_INT64:
+ params[0] = v.value_int;
+ break;
+ default:
+ ; /* nothing - GL error was recorded */
+ }
+}
+#endif /* FEATURE_ARB_sync */
+
+#if FEATURE_ES1
+void GLAPIENTRY
+_mesa_GetFixedv(GLenum pname, GLfixed *params)
+{
+ const struct value_desc *d;
+ union value v;
+ GLmatrix *m;
+ int shift, i;
+ void *p;
+
+ d = find_value("glGetDoublev", pname, &p, &v);
+ switch (d->type) {
+ case TYPE_INVALID:
+ break;
+ case TYPE_CONST:
+ params[0] = INT_TO_FIXED(d->offset);
+ break;
+
+ case TYPE_FLOAT_4:
+ case TYPE_FLOATN_4:
+ params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
+ case TYPE_FLOAT_3:
+ case TYPE_FLOATN_3:
+ params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
+ case TYPE_FLOAT_2:
+ case TYPE_FLOATN_2:
+ params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
+ case TYPE_FLOAT:
+ case TYPE_FLOATN:
+ params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
+ break;
+
+ case TYPE_DOUBLEN:
+ params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
+ break;
+
+ case TYPE_INT_4:
+ params[3] = INT_TO_FIXED(((GLint *) p)[3]);
+ case TYPE_INT_3:
+ params[2] = INT_TO_FIXED(((GLint *) p)[2]);
+ case TYPE_INT_2:
+ case TYPE_ENUM_2:
+ params[1] = INT_TO_FIXED(((GLint *) p)[1]);
+ case TYPE_INT:
+ case TYPE_ENUM:
+ params[0] = INT_TO_FIXED(((GLint *) p)[0]);
+ break;
+
+ case TYPE_INT_N:
+ for (i = 0; i < v.value_int_n.n; i++)
+ params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
+ break;
+
+ case TYPE_INT64:
+ params[0] = ((GLint64 *) p)[0];
+ break;
+
+ case TYPE_BOOLEAN:
+ params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
+ break;
+
+ case TYPE_MATRIX:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_FIXED(m->m[i]);
+ break;
+
+ case TYPE_MATRIX_T:
+ m = *(GLmatrix **) p;
+ for (i = 0; i < 16; i++)
+ params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
+ break;
+
+ case TYPE_BIT_0:
+ case TYPE_BIT_1:
+ case TYPE_BIT_2:
+ case TYPE_BIT_3:
+ case TYPE_BIT_4:
+ case TYPE_BIT_5:
+ shift = d->type - TYPE_BIT_0;
+ params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);
+ break;
+ }
+}
+#endif
diff --git a/mesalib/src/mesa/main/glheader.h b/mesalib/src/mesa/main/glheader.h index 0df811986..dc78ccbf6 100644 --- a/mesalib/src/mesa/main/glheader.h +++ b/mesalib/src/mesa/main/glheader.h @@ -1,167 +1,167 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file glheader.h - * Wrapper for GL/gl.h and GL/glext.h - */ - - -#ifndef GLHEADER_H -#define GLHEADER_H - - -#ifdef WGLAPI -#undef WGLAPI -#endif - - -#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP) -# if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */ -# define WGLAPI __declspec(dllexport) -# elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */ -# define WGLAPI __declspec(dllimport) -# else /* for use with static link lib build of Win32 edition only */ -# define WGLAPI __declspec(dllimport) -# endif /* _STATIC_MESA support */ -#endif /* WIN32 / CYGWIN bracket */ - - -#define GL_GLEXT_PROTOTYPES -#include "GL/gl.h" -#include "GL/glext.h" - - -/** - * GL_FIXED is defined in glext.h version 64 but these typedefs aren't (yet). - */ -typedef int GLfixed; -typedef int GLclampx; - - -#ifndef GL_OES_EGL_image -typedef void *GLeglImageOES; -#endif - - -#ifndef GL_OES_point_size_array -#define GL_POINT_SIZE_ARRAY_OES 0x8B9C -#define GL_POINT_SIZE_ARRAY_TYPE_OES 0x898A -#define GL_POINT_SIZE_ARRAY_STRIDE_OES 0x898B -#define GL_POINT_SIZE_ARRAY_POINTER_OES 0x898C -#define GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES 0x8B9F -#endif - - -#ifndef GL_OES_draw_texture -#define GL_TEXTURE_CROP_RECT_OES 0x8B9D -#endif - - -#ifndef GL_PROGRAM_BINARY_LENGTH_OES -#define GL_PROGRAM_BINARY_LENGTH_OES 0x8741 -#endif - -/* GLES 2.0 tokens */ -#ifndef GL_RGB565 -#define GL_RGB565 0x8D62 -#endif - -#ifndef GL_TEXTURE_GEN_STR_OES -#define GL_TEXTURE_GEN_STR_OES 0x8D60 -#endif - -#ifndef GL_OES_compressed_paletted_texture -#define GL_PALETTE4_RGB8_OES 0x8B90 -#define GL_PALETTE4_RGBA8_OES 0x8B91 -#define GL_PALETTE4_R5_G6_B5_OES 0x8B92 -#define GL_PALETTE4_RGBA4_OES 0x8B93 -#define GL_PALETTE4_RGB5_A1_OES 0x8B94 -#define GL_PALETTE8_RGB8_OES 0x8B95 -#define GL_PALETTE8_RGBA8_OES 0x8B96 -#define GL_PALETTE8_R5_G6_B5_OES 0x8B97 -#define GL_PALETTE8_RGBA4_OES 0x8B98 -#define GL_PALETTE8_RGB5_A1_OES 0x8B99 -#endif - -#ifndef GL_OES_matrix_get -#define GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES 0x898D -#define GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES 0x898E -#define GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES 0x898F -#endif - -#ifndef GL_ES_VERSION_2_0 -#define GL_SHADER_BINARY_FORMATS 0x8DF8 -#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9 -#define GL_SHADER_COMPILER 0x8DFA -#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB -#define GL_MAX_VARYING_VECTORS 0x8DFC -#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD -#endif - -#ifndef GL_ATI_texture_compression_3dc -#define GL_ATI_texture_compression_3dc 1 -#define GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI 0x8837 -#endif - - -/** - * Internal token to represent a GLSL shader program (a collection of - * one or more shaders that get linked together). Note that GLSL - * shaders and shader programs share one name space (one hash table) - * so we need a value that's different from any of the - * GL_VERTEX/FRAGMENT/GEOMETRY_PROGRAM tokens. - */ -#define GL_SHADER_PROGRAM_MESA 0x9999 - - -/** - * Internal token for geometry programs. - * Use the value for GL_GEOMETRY_PROGRAM_NV for now. - */ -#define MESA_GEOMETRY_PROGRAM 0x8c26 - -/* Several fields of struct gl_config can take these as values. Since - * GLX header files may not be available everywhere they need to be used, - * redefine them here. - */ -#define GLX_NONE 0x8000 -#define GLX_SLOW_CONFIG 0x8001 -#define GLX_TRUE_COLOR 0x8002 -#define GLX_DIRECT_COLOR 0x8003 -#define GLX_PSEUDO_COLOR 0x8004 -#define GLX_STATIC_COLOR 0x8005 -#define GLX_GRAY_SCALE 0x8006 -#define GLX_STATIC_GRAY 0x8007 -#define GLX_TRANSPARENT_RGB 0x8008 -#define GLX_TRANSPARENT_INDEX 0x8009 -#define GLX_NON_CONFORMANT_CONFIG 0x800D -#define GLX_SWAP_EXCHANGE_OML 0x8061 -#define GLX_SWAP_COPY_OML 0x8062 -#define GLX_SWAP_UNDEFINED_OML 0x8063 - -#define GLX_DONT_CARE 0xFFFFFFFF - -#endif /* GLHEADER_H */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.5
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file glheader.h
+ * Wrapper for GL/gl.h and GL/glext.h
+ */
+
+
+#ifndef GLHEADER_H
+#define GLHEADER_H
+
+
+#ifdef WGLAPI
+#undef WGLAPI
+#endif
+
+
+#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP)
+# if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
+# define WGLAPI __declspec(dllexport)
+# elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
+# define WGLAPI __declspec(dllimport)
+# else /* for use with static link lib build of Win32 edition only */
+# define WGLAPI __declspec(dllimport)
+# endif /* _STATIC_MESA support */
+#endif /* WIN32 / CYGWIN bracket */
+
+
+#define GL_GLEXT_PROTOTYPES
+#include "GL/gl.h"
+#include "GL/glext.h"
+
+
+/**
+ * GL_FIXED is defined in glext.h version 64 but these typedefs aren't (yet).
+ */
+typedef int GLfixed;
+typedef int GLclampx;
+
+
+#ifndef GL_OES_EGL_image
+typedef void *GLeglImageOES;
+#endif
+
+
+#ifndef GL_OES_point_size_array
+#define GL_POINT_SIZE_ARRAY_OES 0x8B9C
+#define GL_POINT_SIZE_ARRAY_TYPE_OES 0x898A
+#define GL_POINT_SIZE_ARRAY_STRIDE_OES 0x898B
+#define GL_POINT_SIZE_ARRAY_POINTER_OES 0x898C
+#define GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES 0x8B9F
+#endif
+
+
+#ifndef GL_OES_draw_texture
+#define GL_TEXTURE_CROP_RECT_OES 0x8B9D
+#endif
+
+
+#ifndef GL_PROGRAM_BINARY_LENGTH_OES
+#define GL_PROGRAM_BINARY_LENGTH_OES 0x8741
+#endif
+
+/* GLES 2.0 tokens */
+#ifndef GL_RGB565
+#define GL_RGB565 0x8D62
+#endif
+
+#ifndef GL_TEXTURE_GEN_STR_OES
+#define GL_TEXTURE_GEN_STR_OES 0x8D60
+#endif
+
+#ifndef GL_OES_compressed_paletted_texture
+#define GL_PALETTE4_RGB8_OES 0x8B90
+#define GL_PALETTE4_RGBA8_OES 0x8B91
+#define GL_PALETTE4_R5_G6_B5_OES 0x8B92
+#define GL_PALETTE4_RGBA4_OES 0x8B93
+#define GL_PALETTE4_RGB5_A1_OES 0x8B94
+#define GL_PALETTE8_RGB8_OES 0x8B95
+#define GL_PALETTE8_RGBA8_OES 0x8B96
+#define GL_PALETTE8_R5_G6_B5_OES 0x8B97
+#define GL_PALETTE8_RGBA4_OES 0x8B98
+#define GL_PALETTE8_RGB5_A1_OES 0x8B99
+#endif
+
+#ifndef GL_OES_matrix_get
+#define GL_MODELVIEW_MATRIX_FLOAT_AS_INT_BITS_OES 0x898D
+#define GL_PROJECTION_MATRIX_FLOAT_AS_INT_BITS_OES 0x898E
+#define GL_TEXTURE_MATRIX_FLOAT_AS_INT_BITS_OES 0x898F
+#endif
+
+#ifndef GL_ES_VERSION_2_0
+#define GL_SHADER_BINARY_FORMATS 0x8DF8
+#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9
+#define GL_SHADER_COMPILER 0x8DFA
+#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB
+#define GL_MAX_VARYING_VECTORS 0x8DFC
+#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD
+#endif
+
+#ifndef GL_ATI_texture_compression_3dc
+#define GL_ATI_texture_compression_3dc 1
+#define GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI 0x8837
+#endif
+
+
+/**
+ * Internal token to represent a GLSL shader program (a collection of
+ * one or more shaders that get linked together). Note that GLSL
+ * shaders and shader programs share one name space (one hash table)
+ * so we need a value that's different from any of the
+ * GL_VERTEX/FRAGMENT/GEOMETRY_PROGRAM tokens.
+ */
+#define GL_SHADER_PROGRAM_MESA 0x9999
+
+
+/**
+ * Internal token for geometry programs.
+ * Use the value for GL_GEOMETRY_PROGRAM_NV for now.
+ */
+#define MESA_GEOMETRY_PROGRAM 0x8c26
+
+/* Several fields of struct gl_config can take these as values. Since
+ * GLX header files may not be available everywhere they need to be used,
+ * redefine them here.
+ */
+#define GLX_NONE 0x8000
+#define GLX_SLOW_CONFIG 0x8001
+#define GLX_TRUE_COLOR 0x8002
+#define GLX_DIRECT_COLOR 0x8003
+#define GLX_PSEUDO_COLOR 0x8004
+#define GLX_STATIC_COLOR 0x8005
+#define GLX_GRAY_SCALE 0x8006
+#define GLX_STATIC_GRAY 0x8007
+#define GLX_TRANSPARENT_RGB 0x8008
+#define GLX_TRANSPARENT_INDEX 0x8009
+#define GLX_NON_CONFORMANT_CONFIG 0x800D
+#define GLX_SWAP_EXCHANGE_OML 0x8061
+#define GLX_SWAP_COPY_OML 0x8062
+#define GLX_SWAP_UNDEFINED_OML 0x8063
+
+#define GLX_DONT_CARE 0xFFFFFFFF
+
+#endif /* GLHEADER_H */
diff --git a/mesalib/src/mesa/main/hint.c b/mesalib/src/mesa/main/hint.c index ff8d88fff..aea0d7022 100644 --- a/mesalib/src/mesa/main/hint.c +++ b/mesalib/src/mesa/main/hint.c @@ -1,147 +1,147 @@ - -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "enums.h" -#include "context.h" -#include "hint.h" -#include "imports.h" -#include "mtypes.h" - - - -void GLAPIENTRY -_mesa_Hint( GLenum target, GLenum mode ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glHint %s %s\n", - _mesa_lookup_enum_by_nr(target), - _mesa_lookup_enum_by_nr(mode)); - - if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) { - _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)"); - return; - } - - switch (target) { - case GL_FOG_HINT: - if (ctx->Hint.Fog == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.Fog = mode; - break; - case GL_LINE_SMOOTH_HINT: - if (ctx->Hint.LineSmooth == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.LineSmooth = mode; - break; - case GL_PERSPECTIVE_CORRECTION_HINT: - if (ctx->Hint.PerspectiveCorrection == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.PerspectiveCorrection = mode; - break; - case GL_POINT_SMOOTH_HINT: - if (ctx->Hint.PointSmooth == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.PointSmooth = mode; - break; - case GL_POLYGON_SMOOTH_HINT: - if (ctx->Hint.PolygonSmooth == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.PolygonSmooth = mode; - break; - - /* GL_EXT_clip_volume_hint */ - case GL_CLIP_VOLUME_CLIPPING_HINT_EXT: - if (ctx->Hint.ClipVolumeClipping == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.ClipVolumeClipping = mode; - break; - - /* GL_ARB_texture_compression */ - case GL_TEXTURE_COMPRESSION_HINT_ARB: - if (ctx->Hint.TextureCompression == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.TextureCompression = mode; - break; - - /* GL_SGIS_generate_mipmap */ - case GL_GENERATE_MIPMAP_HINT_SGIS: - if (ctx->Hint.GenerateMipmap == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.GenerateMipmap = mode; - break; - - /* GL_ARB_fragment_shader */ - case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB: - if (!ctx->Extensions.ARB_fragment_shader) { - _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); - return; - } - if (ctx->Hint.FragmentShaderDerivative == mode) - return; - FLUSH_VERTICES(ctx, _NEW_HINT); - ctx->Hint.FragmentShaderDerivative = mode; - break; - - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); - return; - } - - if (ctx->Driver.Hint) { - (*ctx->Driver.Hint)( ctx, target, mode ); - } -} - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - -void _mesa_init_hint( struct gl_context * ctx ) -{ - /* Hint group */ - ctx->Hint.PerspectiveCorrection = GL_DONT_CARE; - ctx->Hint.PointSmooth = GL_DONT_CARE; - ctx->Hint.LineSmooth = GL_DONT_CARE; - ctx->Hint.PolygonSmooth = GL_DONT_CARE; - ctx->Hint.Fog = GL_DONT_CARE; - ctx->Hint.ClipVolumeClipping = GL_DONT_CARE; - ctx->Hint.TextureCompression = GL_DONT_CARE; - ctx->Hint.GenerateMipmap = GL_DONT_CARE; - ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE; -} +
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.1
+ *
+ * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "enums.h"
+#include "context.h"
+#include "hint.h"
+#include "imports.h"
+#include "mtypes.h"
+
+
+
+void GLAPIENTRY
+_mesa_Hint( GLenum target, GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glHint %s %s\n",
+ _mesa_lookup_enum_by_nr(target),
+ _mesa_lookup_enum_by_nr(mode));
+
+ if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
+ return;
+ }
+
+ switch (target) {
+ case GL_FOG_HINT:
+ if (ctx->Hint.Fog == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.Fog = mode;
+ break;
+ case GL_LINE_SMOOTH_HINT:
+ if (ctx->Hint.LineSmooth == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.LineSmooth = mode;
+ break;
+ case GL_PERSPECTIVE_CORRECTION_HINT:
+ if (ctx->Hint.PerspectiveCorrection == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.PerspectiveCorrection = mode;
+ break;
+ case GL_POINT_SMOOTH_HINT:
+ if (ctx->Hint.PointSmooth == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.PointSmooth = mode;
+ break;
+ case GL_POLYGON_SMOOTH_HINT:
+ if (ctx->Hint.PolygonSmooth == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.PolygonSmooth = mode;
+ break;
+
+ /* GL_EXT_clip_volume_hint */
+ case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
+ if (ctx->Hint.ClipVolumeClipping == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.ClipVolumeClipping = mode;
+ break;
+
+ /* GL_ARB_texture_compression */
+ case GL_TEXTURE_COMPRESSION_HINT_ARB:
+ if (ctx->Hint.TextureCompression == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.TextureCompression = mode;
+ break;
+
+ /* GL_SGIS_generate_mipmap */
+ case GL_GENERATE_MIPMAP_HINT_SGIS:
+ if (ctx->Hint.GenerateMipmap == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.GenerateMipmap = mode;
+ break;
+
+ /* GL_ARB_fragment_shader */
+ case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB:
+ if (!ctx->Extensions.ARB_fragment_shader) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+ return;
+ }
+ if (ctx->Hint.FragmentShaderDerivative == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.FragmentShaderDerivative = mode;
+ break;
+
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
+ return;
+ }
+
+ if (ctx->Driver.Hint) {
+ (*ctx->Driver.Hint)( ctx, target, mode );
+ }
+}
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+void _mesa_init_hint( struct gl_context * ctx )
+{
+ /* Hint group */
+ ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;
+ ctx->Hint.PointSmooth = GL_DONT_CARE;
+ ctx->Hint.LineSmooth = GL_DONT_CARE;
+ ctx->Hint.PolygonSmooth = GL_DONT_CARE;
+ ctx->Hint.Fog = GL_DONT_CARE;
+ ctx->Hint.ClipVolumeClipping = GL_DONT_CARE;
+ ctx->Hint.TextureCompression = GL_DONT_CARE;
+ ctx->Hint.GenerateMipmap = GL_DONT_CARE;
+ ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE;
+}
diff --git a/mesalib/src/mesa/main/image.c b/mesalib/src/mesa/main/image.c index bbde3800e..466fc617a 100644 --- a/mesalib/src/mesa/main/image.c +++ b/mesalib/src/mesa/main/image.c @@ -1,1891 +1,1891 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file image.c - * Image handling. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "image.h" -#include "imports.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" - - -/** - * NOTE: - * Normally, BYTE_TO_FLOAT(0) returns 0.00392 That causes problems when - * we later convert the float to a packed integer value (such as for - * GL_RGB5_A1) because we'll wind up with a non-zero value. - * - * We redefine the macros here so zero is handled correctly. - */ -#undef BYTE_TO_FLOAT -#define BYTE_TO_FLOAT(B) ((B) == 0 ? 0.0F : ((2.0F * (B) + 1.0F) * (1.0F/255.0F))) - -#undef SHORT_TO_FLOAT -#define SHORT_TO_FLOAT(S) ((S) == 0 ? 0.0F : ((2.0F * (S) + 1.0F) * (1.0F/65535.0F))) - - - -/** Compute ceiling of integer quotient of A divided by B. */ -#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 ) - - -/** - * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise. - */ -GLboolean -_mesa_type_is_packed(GLenum type) -{ - switch (type) { - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case MESA_UNSIGNED_BYTE_4_4: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - case GL_UNSIGNED_SHORT_8_8_MESA: - case GL_UNSIGNED_SHORT_8_8_REV_MESA: - case GL_UNSIGNED_INT_24_8_EXT: - return GL_TRUE; - } - - return GL_FALSE; -} - - - -/** - * Flip the order of the 2 bytes in each word in the given array. - * - * \param p array. - * \param n number of words. - */ -void -_mesa_swap2( GLushort *p, GLuint n ) -{ - GLuint i; - for (i = 0; i < n; i++) { - p[i] = (p[i] >> 8) | ((p[i] << 8) & 0xff00); - } -} - - - -/* - * Flip the order of the 4 bytes in each word in the given array. - */ -void -_mesa_swap4( GLuint *p, GLuint n ) -{ - GLuint i, a, b; - for (i = 0; i < n; i++) { - b = p[i]; - a = (b >> 24) - | ((b >> 8) & 0xff00) - | ((b << 8) & 0xff0000) - | ((b << 24) & 0xff000000); - p[i] = a; - } -} - - -/** - * Get the size of a GL data type. - * - * \param type GL data type. - * - * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1 - * if an invalid type enum. - */ -GLint -_mesa_sizeof_type( GLenum type ) -{ - switch (type) { - case GL_BITMAP: - return 0; - case GL_UNSIGNED_BYTE: - return sizeof(GLubyte); - case GL_BYTE: - return sizeof(GLbyte); - case GL_UNSIGNED_SHORT: - return sizeof(GLushort); - case GL_SHORT: - return sizeof(GLshort); - case GL_UNSIGNED_INT: - return sizeof(GLuint); - case GL_INT: - return sizeof(GLint); - case GL_FLOAT: - return sizeof(GLfloat); - case GL_DOUBLE: - return sizeof(GLdouble); - case GL_HALF_FLOAT_ARB: - return sizeof(GLhalfARB); - case GL_FIXED: - return sizeof(GLfixed); - default: - return -1; - } -} - - -/** - * Same as _mesa_sizeof_type() but also accepting the packed pixel - * format data types. - */ -GLint -_mesa_sizeof_packed_type( GLenum type ) -{ - switch (type) { - case GL_BITMAP: - return 0; - case GL_UNSIGNED_BYTE: - return sizeof(GLubyte); - case GL_BYTE: - return sizeof(GLbyte); - case GL_UNSIGNED_SHORT: - return sizeof(GLushort); - case GL_SHORT: - return sizeof(GLshort); - case GL_UNSIGNED_INT: - return sizeof(GLuint); - case GL_INT: - return sizeof(GLint); - case GL_HALF_FLOAT_ARB: - return sizeof(GLhalfARB); - case GL_FLOAT: - return sizeof(GLfloat); - case GL_UNSIGNED_BYTE_3_3_2: - return sizeof(GLubyte); - case GL_UNSIGNED_BYTE_2_3_3_REV: - return sizeof(GLubyte); - case MESA_UNSIGNED_BYTE_4_4: - return sizeof(GLubyte); - case GL_UNSIGNED_SHORT_5_6_5: - return sizeof(GLushort); - case GL_UNSIGNED_SHORT_5_6_5_REV: - return sizeof(GLushort); - case GL_UNSIGNED_SHORT_4_4_4_4: - return sizeof(GLushort); - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - return sizeof(GLushort); - case GL_UNSIGNED_SHORT_5_5_5_1: - return sizeof(GLushort); - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - return sizeof(GLushort); - case GL_UNSIGNED_INT_8_8_8_8: - return sizeof(GLuint); - case GL_UNSIGNED_INT_8_8_8_8_REV: - return sizeof(GLuint); - case GL_UNSIGNED_INT_10_10_10_2: - return sizeof(GLuint); - case GL_UNSIGNED_INT_2_10_10_10_REV: - return sizeof(GLuint); - case GL_UNSIGNED_SHORT_8_8_MESA: - case GL_UNSIGNED_SHORT_8_8_REV_MESA: - return sizeof(GLushort); - case GL_UNSIGNED_INT_24_8_EXT: - return sizeof(GLuint); - default: - return -1; - } -} - - -/** - * Get the number of components in a pixel format. - * - * \param format pixel format. - * - * \return the number of components in the given format, or -1 if a bad format. - */ -GLint -_mesa_components_in_format( GLenum format ) -{ - switch (format) { - case GL_COLOR_INDEX: - case GL_COLOR_INDEX1_EXT: - case GL_COLOR_INDEX2_EXT: - case GL_COLOR_INDEX4_EXT: - case GL_COLOR_INDEX8_EXT: - case GL_COLOR_INDEX12_EXT: - case GL_COLOR_INDEX16_EXT: - case GL_STENCIL_INDEX: - case GL_DEPTH_COMPONENT: - case GL_RED: - case GL_RED_INTEGER_EXT: - case GL_GREEN: - case GL_GREEN_INTEGER_EXT: - case GL_BLUE: - case GL_BLUE_INTEGER_EXT: - case GL_ALPHA: - case GL_ALPHA_INTEGER_EXT: - case GL_LUMINANCE: - case GL_LUMINANCE_INTEGER_EXT: - case GL_INTENSITY: - return 1; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - case GL_RG: - return 2; - case GL_RGB: - case GL_RGB_INTEGER_EXT: - return 3; - case GL_RGBA: - case GL_RGBA_INTEGER_EXT: - return 4; - case GL_BGR: - return 3; - case GL_BGRA: - return 4; - case GL_ABGR_EXT: - return 4; - case GL_YCBCR_MESA: - return 2; - case GL_DEPTH_STENCIL_EXT: - return 2; - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - return 2; - default: - return -1; - } -} - - -/** - * Get the bytes per pixel of pixel format type pair. - * - * \param format pixel format. - * \param type pixel type. - * - * \return bytes per pixel, or -1 if a bad format or type was given. - */ -GLint -_mesa_bytes_per_pixel( GLenum format, GLenum type ) -{ - GLint comps = _mesa_components_in_format( format ); - if (comps < 0) - return -1; - - switch (type) { - case GL_BITMAP: - return 0; /* special case */ - case GL_BYTE: - case GL_UNSIGNED_BYTE: - return comps * sizeof(GLubyte); - case GL_SHORT: - case GL_UNSIGNED_SHORT: - return comps * sizeof(GLshort); - case GL_INT: - case GL_UNSIGNED_INT: - return comps * sizeof(GLint); - case GL_FLOAT: - return comps * sizeof(GLfloat); - case GL_HALF_FLOAT_ARB: - return comps * sizeof(GLhalfARB); - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - if (format == GL_RGB || format == GL_BGR || - format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT) - return sizeof(GLubyte); - else - return -1; /* error */ - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - if (format == GL_RGB || format == GL_BGR || - format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT) - return sizeof(GLushort); - else - return -1; /* error */ - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT || - format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) - return sizeof(GLushort); - else - return -1; - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT || - format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) - return sizeof(GLuint); - else - return -1; - case GL_UNSIGNED_SHORT_8_8_MESA: - case GL_UNSIGNED_SHORT_8_8_REV_MESA: - if (format == GL_YCBCR_MESA) - return sizeof(GLushort); - else - return -1; - case GL_UNSIGNED_INT_24_8_EXT: - if (format == GL_DEPTH_STENCIL_EXT) - return sizeof(GLuint); - else - return -1; - default: - return -1; - } -} - - -/** - * Test for a legal pixel format and type. - * - * \param format pixel format. - * \param type pixel type. - * - * \return GL_TRUE if the given pixel format and type are legal, or GL_FALSE - * otherwise. - */ -GLboolean -_mesa_is_legal_format_and_type(const struct gl_context *ctx, - GLenum format, GLenum type) -{ - switch (format) { - case GL_COLOR_INDEX: - case GL_STENCIL_INDEX: - switch (type) { - case GL_BITMAP: - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: -#if 0 /* not legal! see table 3.6 of the 1.5 spec */ - case GL_INTENSITY: -#endif - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_DEPTH_COMPONENT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_RG: - if (!ctx->Extensions.ARB_texture_rg) - return GL_FALSE; - - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_RGB: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_BGR: - switch (type) { - /* NOTE: no packed types are supported with BGR. That's - * intentional, according to the GL spec. - */ - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_RGBA: - case GL_BGRA: - case GL_ABGR_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - return GL_TRUE; - case GL_HALF_FLOAT_ARB: - return ctx->Extensions.ARB_half_float_pixel; - default: - return GL_FALSE; - } - case GL_YCBCR_MESA: - if (type == GL_UNSIGNED_SHORT_8_8_MESA || - type == GL_UNSIGNED_SHORT_8_8_REV_MESA) - return GL_TRUE; - else - return GL_FALSE; - case GL_DEPTH_STENCIL_EXT: - if (ctx->Extensions.EXT_packed_depth_stencil - && type == GL_UNSIGNED_INT_24_8_EXT) - return GL_TRUE; - else - return GL_FALSE; - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_FLOAT: - return GL_TRUE; - default: - return GL_FALSE; - } - - /* integer-valued formats */ - case GL_RED_INTEGER_EXT: - case GL_GREEN_INTEGER_EXT: - case GL_BLUE_INTEGER_EXT: - case GL_ALPHA_INTEGER_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - return ctx->Extensions.EXT_texture_integer; - default: - return GL_FALSE; - } - - case GL_RGB_INTEGER_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - return ctx->Extensions.EXT_texture_integer; - default: - return GL_FALSE; - } - - case GL_BGR_INTEGER_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - /* NOTE: no packed formats w/ BGR format */ - return ctx->Extensions.EXT_texture_integer; - default: - return GL_FALSE; - } - - case GL_RGBA_INTEGER_EXT: - case GL_BGRA_INTEGER_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - return ctx->Extensions.EXT_texture_integer; - default: - return GL_FALSE; - } - - case GL_LUMINANCE_INTEGER_EXT: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - switch (type) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - case GL_SHORT: - case GL_UNSIGNED_SHORT: - case GL_INT: - case GL_UNSIGNED_INT: - return ctx->Extensions.EXT_texture_integer; - default: - return GL_FALSE; - } - - default: - ; /* fall-through */ - } - return GL_FALSE; -} - - -/** - * Test if the given image format is a color/RGBA format (i.e., not color - * index, depth, stencil, etc). - * \param format the image format value (may by an internal texture format) - * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise. - */ -GLboolean -_mesa_is_color_format(GLenum format) -{ - switch (format) { - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_INTENSITY12: - case GL_INTENSITY16: - case GL_R8: - case GL_R16: - case GL_RG: - case GL_RG8: - case GL_RG16: - case 3: - case GL_RGB: - case GL_BGR: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - case 4: - case GL_ABGR_EXT: - case GL_RGBA: - case GL_BGRA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - /* float texture formats */ - case GL_ALPHA16F_ARB: - case GL_ALPHA32F_ARB: - case GL_LUMINANCE16F_ARB: - case GL_LUMINANCE32F_ARB: - case GL_LUMINANCE_ALPHA16F_ARB: - case GL_LUMINANCE_ALPHA32F_ARB: - case GL_INTENSITY16F_ARB: - case GL_INTENSITY32F_ARB: - case GL_R16F: - case GL_R32F: - case GL_RG16F: - case GL_RG32F: - case GL_RGB16F_ARB: - case GL_RGB32F_ARB: - case GL_RGBA16F_ARB: - case GL_RGBA32F_ARB: - /* compressed formats */ - case GL_COMPRESSED_ALPHA: - case GL_COMPRESSED_LUMINANCE: - case GL_COMPRESSED_LUMINANCE_ALPHA: - case GL_COMPRESSED_INTENSITY: - case GL_COMPRESSED_RED: - case GL_COMPRESSED_RG: - case GL_COMPRESSED_RGB: - case GL_COMPRESSED_RGBA: - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - case GL_COMPRESSED_RGB_FXT1_3DFX: - case GL_COMPRESSED_RGBA_FXT1_3DFX: -#if FEATURE_EXT_texture_sRGB - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - case GL_COMPRESSED_SRGB_EXT: - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - case GL_COMPRESSED_SRGB_ALPHA_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - case GL_COMPRESSED_SLUMINANCE_EXT: - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: -#endif /* FEATURE_EXT_texture_sRGB */ - case GL_COMPRESSED_RED_RGTC1: - case GL_COMPRESSED_SIGNED_RED_RGTC1: - case GL_COMPRESSED_RG_RGTC2: - case GL_COMPRESSED_SIGNED_RG_RGTC2: - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - /* signed, normalized texture formats */ - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - /* generic integer formats */ - case GL_RED_INTEGER_EXT: - case GL_GREEN_INTEGER_EXT: - case GL_BLUE_INTEGER_EXT: - case GL_ALPHA_INTEGER_EXT: - case GL_RGB_INTEGER_EXT: - case GL_RGBA_INTEGER_EXT: - case GL_BGR_INTEGER_EXT: - case GL_BGRA_INTEGER_EXT: - case GL_LUMINANCE_INTEGER_EXT: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - /* sized integer formats */ - case GL_RGBA32UI_EXT: - case GL_RGB32UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - case GL_RGBA16UI_EXT: - case GL_RGB16UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - case GL_RGBA8UI_EXT: - case GL_RGB8UI_EXT: - case GL_ALPHA8UI_EXT: - case GL_INTENSITY8UI_EXT: - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE_ALPHA8UI_EXT: - case GL_RGBA32I_EXT: - case GL_RGB32I_EXT: - case GL_ALPHA32I_EXT: - case GL_INTENSITY32I_EXT: - case GL_LUMINANCE32I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - case GL_RGBA16I_EXT: - case GL_RGB16I_EXT: - case GL_ALPHA16I_EXT: - case GL_INTENSITY16I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - case GL_RGBA8I_EXT: - case GL_RGB8I_EXT: - case GL_ALPHA8I_EXT: - case GL_INTENSITY8I_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - return GL_TRUE; - case GL_YCBCR_MESA: /* not considered to be RGB */ - /* fall-through */ - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a color index format. - */ -GLboolean -_mesa_is_index_format(GLenum format) -{ - switch (format) { - case GL_COLOR_INDEX: - case GL_COLOR_INDEX1_EXT: - case GL_COLOR_INDEX2_EXT: - case GL_COLOR_INDEX4_EXT: - case GL_COLOR_INDEX8_EXT: - case GL_COLOR_INDEX12_EXT: - case GL_COLOR_INDEX16_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a depth component format. - */ -GLboolean -_mesa_is_depth_format(GLenum format) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a stencil format. - */ -GLboolean -_mesa_is_stencil_format(GLenum format) -{ - switch (format) { - case GL_STENCIL_INDEX: - case GL_DEPTH_STENCIL: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a YCbCr format. - */ -GLboolean -_mesa_is_ycbcr_format(GLenum format) -{ - switch (format) { - case GL_YCBCR_MESA: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a depth+stencil format. - */ -GLboolean -_mesa_is_depthstencil_format(GLenum format) -{ - switch (format) { - case GL_DEPTH24_STENCIL8_EXT: - case GL_DEPTH_STENCIL_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a depth or stencil format. - */ -GLboolean -_mesa_is_depth_or_stencil_format(GLenum format) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given image format is a dudv format. - */ -GLboolean -_mesa_is_dudv_format(GLenum format) -{ - switch (format) { - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if the given format is an integer (non-normalized) format. - */ -GLboolean -_mesa_is_integer_format(GLenum format) -{ - switch (format) { - /* generic integer formats */ - case GL_RED_INTEGER_EXT: - case GL_GREEN_INTEGER_EXT: - case GL_BLUE_INTEGER_EXT: - case GL_ALPHA_INTEGER_EXT: - case GL_RGB_INTEGER_EXT: - case GL_RGBA_INTEGER_EXT: - case GL_BGR_INTEGER_EXT: - case GL_BGRA_INTEGER_EXT: - case GL_LUMINANCE_INTEGER_EXT: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - /* specific integer formats */ - case GL_RGBA32UI_EXT: - case GL_RGB32UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - case GL_RGBA16UI_EXT: - case GL_RGB16UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - case GL_RGBA8UI_EXT: - case GL_RGB8UI_EXT: - case GL_ALPHA8UI_EXT: - case GL_INTENSITY8UI_EXT: - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE_ALPHA8UI_EXT: - case GL_RGBA32I_EXT: - case GL_RGB32I_EXT: - case GL_ALPHA32I_EXT: - case GL_INTENSITY32I_EXT: - case GL_LUMINANCE32I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - case GL_RGBA16I_EXT: - case GL_RGB16I_EXT: - case GL_ALPHA16I_EXT: - case GL_INTENSITY16I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - case GL_RGBA8I_EXT: - case GL_RGB8I_EXT: - case GL_ALPHA8I_EXT: - case GL_INTENSITY8I_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Test if an image format is a supported compressed format. - * \param format the internal format token provided by the user. - * \return GL_TRUE if compressed, GL_FALSE if uncompressed - */ -GLboolean -_mesa_is_compressed_format(struct gl_context *ctx, GLenum format) -{ - switch (format) { - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - return ctx->Extensions.EXT_texture_compression_s3tc; - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - return ctx->Extensions.S3_s3tc; - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - return ctx->Extensions.EXT_texture_sRGB - && ctx->Extensions.EXT_texture_compression_s3tc; - case GL_COMPRESSED_RGB_FXT1_3DFX: - case GL_COMPRESSED_RGBA_FXT1_3DFX: - return ctx->Extensions.TDFX_texture_compression_FXT1; - case GL_COMPRESSED_RED_RGTC1: - case GL_COMPRESSED_SIGNED_RED_RGTC1: - case GL_COMPRESSED_RG_RGTC2: - case GL_COMPRESSED_SIGNED_RG_RGTC2: - return ctx->Extensions.ARB_texture_compression_rgtc; - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - return ctx->Extensions.EXT_texture_compression_latc; - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - return ctx->Extensions.ATI_texture_compression_3dc; - default: - return GL_FALSE; - } -} - - -/** - * Return the address of a specific pixel in an image (1D, 2D or 3D). - * - * Pixel unpacking/packing parameters are observed according to \p packing. - * - * \param dimensions either 1, 2 or 3 to indicate dimensionality of image - * \param image starting address of image data - * \param width the image width - * \param height theimage height - * \param format the pixel format - * \param type the pixel data type - * \param packing the pixelstore attributes - * \param img which image in the volume (0 for 1D or 2D images) - * \param row row of pixel in the image (0 for 1D images) - * \param column column of pixel in the image - * - * \return address of pixel on success, or NULL on error. - * - * \sa gl_pixelstore_attrib. - */ -GLvoid * -_mesa_image_address( GLuint dimensions, - const struct gl_pixelstore_attrib *packing, - const GLvoid *image, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - GLint img, GLint row, GLint column ) -{ - GLint alignment; /* 1, 2 or 4 */ - GLint pixels_per_row; - GLint rows_per_image; - GLint skiprows; - GLint skippixels; - GLint skipimages; /* for 3-D volume images */ - GLubyte *pixel_addr; - - ASSERT(dimensions >= 1 && dimensions <= 3); - - alignment = packing->Alignment; - if (packing->RowLength > 0) { - pixels_per_row = packing->RowLength; - } - else { - pixels_per_row = width; - } - if (packing->ImageHeight > 0) { - rows_per_image = packing->ImageHeight; - } - else { - rows_per_image = height; - } - - skippixels = packing->SkipPixels; - /* Note: SKIP_ROWS _is_ used for 1D images */ - skiprows = packing->SkipRows; - /* Note: SKIP_IMAGES is only used for 3D images */ - skipimages = (dimensions == 3) ? packing->SkipImages : 0; - - if (type == GL_BITMAP) { - /* BITMAP data */ - GLint comp_per_pixel; /* components per pixel */ - GLint bytes_per_comp; /* bytes per component */ - GLint bytes_per_row; - GLint bytes_per_image; - - /* Compute bytes per component */ - bytes_per_comp = _mesa_sizeof_packed_type( type ); - if (bytes_per_comp < 0) { - return NULL; - } - - /* Compute number of components per pixel */ - comp_per_pixel = _mesa_components_in_format( format ); - if (comp_per_pixel < 0) { - return NULL; - } - - bytes_per_row = alignment - * CEILING( comp_per_pixel*pixels_per_row, 8*alignment ); - - bytes_per_image = bytes_per_row * rows_per_image; - - pixel_addr = (GLubyte *) image - + (skipimages + img) * bytes_per_image - + (skiprows + row) * bytes_per_row - + (skippixels + column) / 8; - } - else { - /* Non-BITMAP data */ - GLint bytes_per_pixel, bytes_per_row, remainder, bytes_per_image; - GLint topOfImage; - - bytes_per_pixel = _mesa_bytes_per_pixel( format, type ); - - /* The pixel type and format should have been error checked earlier */ - assert(bytes_per_pixel > 0); - - bytes_per_row = pixels_per_row * bytes_per_pixel; - remainder = bytes_per_row % alignment; - if (remainder > 0) - bytes_per_row += (alignment - remainder); - - ASSERT(bytes_per_row % alignment == 0); - - bytes_per_image = bytes_per_row * rows_per_image; - - if (packing->Invert) { - /* set pixel_addr to the last row */ - topOfImage = bytes_per_row * (height - 1); - bytes_per_row = -bytes_per_row; - } - else { - topOfImage = 0; - } - - /* compute final pixel address */ - pixel_addr = (GLubyte *) image - + (skipimages + img) * bytes_per_image - + topOfImage - + (skiprows + row) * bytes_per_row - + (skippixels + column) * bytes_per_pixel; - } - - return (GLvoid *) pixel_addr; -} - - -GLvoid * -_mesa_image_address1d( const struct gl_pixelstore_attrib *packing, - const GLvoid *image, - GLsizei width, - GLenum format, GLenum type, - GLint column ) -{ - return _mesa_image_address(1, packing, image, width, 1, - format, type, 0, 0, column); -} - - -GLvoid * -_mesa_image_address2d( const struct gl_pixelstore_attrib *packing, - const GLvoid *image, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - GLint row, GLint column ) -{ - return _mesa_image_address(2, packing, image, width, height, - format, type, 0, row, column); -} - - -GLvoid * -_mesa_image_address3d( const struct gl_pixelstore_attrib *packing, - const GLvoid *image, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - GLint img, GLint row, GLint column ) -{ - return _mesa_image_address(3, packing, image, width, height, - format, type, img, row, column); -} - - - -/** - * Compute the stride (in bytes) between image rows. - * - * \param packing the pixelstore attributes - * \param width image width. - * \param format pixel format. - * \param type pixel data type. - * - * \return the stride in bytes for the given parameters, or -1 if error - */ -GLint -_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing, - GLint width, GLenum format, GLenum type ) -{ - GLint bytesPerRow, remainder; - - ASSERT(packing); - - if (type == GL_BITMAP) { - if (packing->RowLength == 0) { - bytesPerRow = (width + 7) / 8; - } - else { - bytesPerRow = (packing->RowLength + 7) / 8; - } - } - else { - /* Non-BITMAP data */ - const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type); - if (bytesPerPixel <= 0) - return -1; /* error */ - if (packing->RowLength == 0) { - bytesPerRow = bytesPerPixel * width; - } - else { - bytesPerRow = bytesPerPixel * packing->RowLength; - } - } - - remainder = bytesPerRow % packing->Alignment; - if (remainder > 0) { - bytesPerRow += (packing->Alignment - remainder); - } - - if (packing->Invert) { - /* negate the bytes per row (negative row stride) */ - bytesPerRow = -bytesPerRow; - } - - return bytesPerRow; -} - - -/* - * Compute the stride between images in a 3D texture (in bytes) for the given - * pixel packing parameters and image width, format and type. - */ -GLint -_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing, - GLint width, GLint height, - GLenum format, GLenum type ) -{ - GLint bytesPerRow, bytesPerImage, remainder; - - ASSERT(packing); - - if (type == GL_BITMAP) { - if (packing->RowLength == 0) { - bytesPerRow = (width + 7) / 8; - } - else { - bytesPerRow = (packing->RowLength + 7) / 8; - } - } - else { - const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type); - - if (bytesPerPixel <= 0) - return -1; /* error */ - if (packing->RowLength == 0) { - bytesPerRow = bytesPerPixel * width; - } - else { - bytesPerRow = bytesPerPixel * packing->RowLength; - } - } - - remainder = bytesPerRow % packing->Alignment; - if (remainder > 0) - bytesPerRow += (packing->Alignment - remainder); - - if (packing->ImageHeight == 0) - bytesPerImage = bytesPerRow * height; - else - bytesPerImage = bytesPerRow * packing->ImageHeight; - - return bytesPerImage; -} - - - -/** - * "Expand" a bitmap from 1-bit per pixel to 8-bits per pixel. - * This is typically used to convert a bitmap into a GLubyte/pixel texture. - * "On" bits will set texels to \p onValue. - * "Off" bits will not modify texels. - * \param width src bitmap width in pixels - * \param height src bitmap height in pixels - * \param unpack bitmap unpacking state - * \param bitmap the src bitmap data - * \param destBuffer start of dest buffer - * \param destStride row stride in dest buffer - * \param onValue if bit is 1, set destBuffer pixel to this value - */ -void -_mesa_expand_bitmap(GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap, - GLubyte *destBuffer, GLint destStride, - GLubyte onValue) -{ - const GLubyte *srcRow = (const GLubyte *) - _mesa_image_address2d(unpack, bitmap, width, height, - GL_COLOR_INDEX, GL_BITMAP, 0, 0); - const GLint srcStride = _mesa_image_row_stride(unpack, width, - GL_COLOR_INDEX, GL_BITMAP); - GLint row, col; - -#define SET_PIXEL(COL, ROW) \ - destBuffer[(ROW) * destStride + (COL)] = onValue; - - for (row = 0; row < height; row++) { - const GLubyte *src = srcRow; - - if (unpack->LsbFirst) { - /* Lsb first */ - GLubyte mask = 1U << (unpack->SkipPixels & 0x7); - for (col = 0; col < width; col++) { - - if (*src & mask) { - SET_PIXEL(col, row); - } - - if (mask == 128U) { - src++; - mask = 1U; - } - else { - mask = mask << 1; - } - } - - /* get ready for next row */ - if (mask != 1) - src++; - } - else { - /* Msb first */ - GLubyte mask = 128U >> (unpack->SkipPixels & 0x7); - for (col = 0; col < width; col++) { - - if (*src & mask) { - SET_PIXEL(col, row); - } - - if (mask == 1U) { - src++; - mask = 128U; - } - else { - mask = mask >> 1; - } - } - - /* get ready for next row */ - if (mask != 128) - src++; - } - - srcRow += srcStride; - } /* row */ - -#undef SET_PIXEL -} - - - - -/** - * Convert an array of RGBA colors from one datatype to another. - * NOTE: src may equal dst. In that case, we use a temporary buffer. - */ -void -_mesa_convert_colors(GLenum srcType, const GLvoid *src, - GLenum dstType, GLvoid *dst, - GLuint count, const GLubyte mask[]) -{ - GLuint tempBuffer[MAX_WIDTH][4]; - const GLboolean useTemp = (src == dst); - - ASSERT(srcType != dstType); - - switch (srcType) { - case GL_UNSIGNED_BYTE: - if (dstType == GL_UNSIGNED_SHORT) { - const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src; - GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - dst2[i][RCOMP] = UBYTE_TO_USHORT(src1[i][RCOMP]); - dst2[i][GCOMP] = UBYTE_TO_USHORT(src1[i][GCOMP]); - dst2[i][BCOMP] = UBYTE_TO_USHORT(src1[i][BCOMP]); - dst2[i][ACOMP] = UBYTE_TO_USHORT(src1[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort)); - } - else { - const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src; - GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - ASSERT(dstType == GL_FLOAT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - dst4[i][RCOMP] = UBYTE_TO_FLOAT(src1[i][RCOMP]); - dst4[i][GCOMP] = UBYTE_TO_FLOAT(src1[i][GCOMP]); - dst4[i][BCOMP] = UBYTE_TO_FLOAT(src1[i][BCOMP]); - dst4[i][ACOMP] = UBYTE_TO_FLOAT(src1[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat)); - } - break; - case GL_UNSIGNED_SHORT: - if (dstType == GL_UNSIGNED_BYTE) { - const GLushort (*src2)[4] = (const GLushort (*)[4]) src; - GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - dst1[i][RCOMP] = USHORT_TO_UBYTE(src2[i][RCOMP]); - dst1[i][GCOMP] = USHORT_TO_UBYTE(src2[i][GCOMP]); - dst1[i][BCOMP] = USHORT_TO_UBYTE(src2[i][BCOMP]); - dst1[i][ACOMP] = USHORT_TO_UBYTE(src2[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte)); - } - else { - const GLushort (*src2)[4] = (const GLushort (*)[4]) src; - GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - ASSERT(dstType == GL_FLOAT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - dst4[i][RCOMP] = USHORT_TO_FLOAT(src2[i][RCOMP]); - dst4[i][GCOMP] = USHORT_TO_FLOAT(src2[i][GCOMP]); - dst4[i][BCOMP] = USHORT_TO_FLOAT(src2[i][BCOMP]); - dst4[i][ACOMP] = USHORT_TO_FLOAT(src2[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat)); - } - break; - case GL_FLOAT: - if (dstType == GL_UNSIGNED_BYTE) { - const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src; - GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][RCOMP], src4[i][RCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][GCOMP], src4[i][GCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][BCOMP], src4[i][BCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][ACOMP], src4[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte)); - } - else { - const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src; - GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst); - GLuint i; - ASSERT(dstType == GL_UNSIGNED_SHORT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - UNCLAMPED_FLOAT_TO_USHORT(dst2[i][RCOMP], src4[i][RCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(dst2[i][GCOMP], src4[i][GCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(dst2[i][BCOMP], src4[i][BCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(dst2[i][ACOMP], src4[i][ACOMP]); - } - } - if (useTemp) - memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort)); - } - break; - default: - _mesa_problem(NULL, "Invalid datatype in _mesa_convert_colors"); - } -} - - - - -/** - * Perform basic clipping for glDrawPixels. The image's position and size - * and the unpack SkipPixels and SkipRows are adjusted so that the image - * region is entirely within the window and scissor bounds. - * NOTE: this will only work when glPixelZoom is (1, 1) or (1, -1). - * If Pixel.ZoomY is -1, *destY will be changed to be the first row which - * we'll actually write. Beforehand, *destY-1 is the first drawing row. - * - * \return GL_TRUE if image is ready for drawing or - * GL_FALSE if image was completely clipped away (draw nothing) - */ -GLboolean -_mesa_clip_drawpixels(const struct gl_context *ctx, - GLint *destX, GLint *destY, - GLsizei *width, GLsizei *height, - struct gl_pixelstore_attrib *unpack) -{ - const struct gl_framebuffer *buffer = ctx->DrawBuffer; - - if (unpack->RowLength == 0) { - unpack->RowLength = *width; - } - - ASSERT(ctx->Pixel.ZoomX == 1.0F); - ASSERT(ctx->Pixel.ZoomY == 1.0F || ctx->Pixel.ZoomY == -1.0F); - - /* left clipping */ - if (*destX < buffer->_Xmin) { - unpack->SkipPixels += (buffer->_Xmin - *destX); - *width -= (buffer->_Xmin - *destX); - *destX = buffer->_Xmin; - } - /* right clipping */ - if (*destX + *width > buffer->_Xmax) - *width -= (*destX + *width - buffer->_Xmax); - - if (*width <= 0) - return GL_FALSE; - - if (ctx->Pixel.ZoomY == 1.0F) { - /* bottom clipping */ - if (*destY < buffer->_Ymin) { - unpack->SkipRows += (buffer->_Ymin - *destY); - *height -= (buffer->_Ymin - *destY); - *destY = buffer->_Ymin; - } - /* top clipping */ - if (*destY + *height > buffer->_Ymax) - *height -= (*destY + *height - buffer->_Ymax); - } - else { /* upside down */ - /* top clipping */ - if (*destY > buffer->_Ymax) { - unpack->SkipRows += (*destY - buffer->_Ymax); - *height -= (*destY - buffer->_Ymax); - *destY = buffer->_Ymax; - } - /* bottom clipping */ - if (*destY - *height < buffer->_Ymin) - *height -= (buffer->_Ymin - (*destY - *height)); - /* adjust destY so it's the first row to write to */ - (*destY)--; - } - - if (*height <= 0) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Perform clipping for glReadPixels. The image's window position - * and size, and the pack skipPixels, skipRows and rowLength are adjusted - * so that the image region is entirely within the window bounds. - * Note: this is different from _mesa_clip_drawpixels() in that the - * scissor box is ignored, and we use the bounds of the current readbuffer - * surface. - * - * \return GL_TRUE if region to read is in bounds - * GL_FALSE if region is completely out of bounds (nothing to read) - */ -GLboolean -_mesa_clip_readpixels(const struct gl_context *ctx, - GLint *srcX, GLint *srcY, - GLsizei *width, GLsizei *height, - struct gl_pixelstore_attrib *pack) -{ - const struct gl_framebuffer *buffer = ctx->ReadBuffer; - - if (pack->RowLength == 0) { - pack->RowLength = *width; - } - - /* left clipping */ - if (*srcX < 0) { - pack->SkipPixels += (0 - *srcX); - *width -= (0 - *srcX); - *srcX = 0; - } - /* right clipping */ - if (*srcX + *width > (GLsizei) buffer->Width) - *width -= (*srcX + *width - buffer->Width); - - if (*width <= 0) - return GL_FALSE; - - /* bottom clipping */ - if (*srcY < 0) { - pack->SkipRows += (0 - *srcY); - *height -= (0 - *srcY); - *srcY = 0; - } - /* top clipping */ - if (*srcY + *height > (GLsizei) buffer->Height) - *height -= (*srcY + *height - buffer->Height); - - if (*height <= 0) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Do clipping for a glCopyTexSubImage call. - * The framebuffer source region might extend outside the framebuffer - * bounds. Clip the source region against the framebuffer bounds and - * adjust the texture/dest position and size accordingly. - * - * \return GL_FALSE if region is totally clipped, GL_TRUE otherwise. - */ -GLboolean -_mesa_clip_copytexsubimage(const struct gl_context *ctx, - GLint *destX, GLint *destY, - GLint *srcX, GLint *srcY, - GLsizei *width, GLsizei *height) -{ - const struct gl_framebuffer *fb = ctx->ReadBuffer; - const GLint srcX0 = *srcX, srcY0 = *srcY; - - if (_mesa_clip_to_region(0, 0, fb->Width, fb->Height, - srcX, srcY, width, height)) { - *destX = *destX + *srcX - srcX0; - *destY = *destY + *srcY - srcY0; - - return GL_TRUE; - } - else { - return GL_FALSE; - } -} - - - -/** - * Clip the rectangle defined by (x, y, width, height) against the bounds - * specified by [xmin, xmax) and [ymin, ymax). - * \return GL_FALSE if rect is totally clipped, GL_TRUE otherwise. - */ -GLboolean -_mesa_clip_to_region(GLint xmin, GLint ymin, - GLint xmax, GLint ymax, - GLint *x, GLint *y, - GLsizei *width, GLsizei *height ) -{ - /* left clipping */ - if (*x < xmin) { - *width -= (xmin - *x); - *x = xmin; - } - - /* right clipping */ - if (*x + *width > xmax) - *width -= (*x + *width - xmax); - - if (*width <= 0) - return GL_FALSE; - - /* bottom (or top) clipping */ - if (*y < ymin) { - *height -= (ymin - *y); - *y = ymin; - } - - /* top (or bottom) clipping */ - if (*y + *height > ymax) - *height -= (*y + *height - ymax); - - if (*height <= 0) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Clip dst coords against Xmax (or Ymax). - */ -static INLINE void -clip_right_or_top(GLint *srcX0, GLint *srcX1, - GLint *dstX0, GLint *dstX1, - GLint maxValue) -{ - GLfloat t, bias; - - if (*dstX1 > maxValue) { - /* X1 outside right edge */ - ASSERT(*dstX0 < maxValue); /* X0 should be inside right edge */ - t = (GLfloat) (maxValue - *dstX0) / (GLfloat) (*dstX1 - *dstX0); - /* chop off [t, 1] part */ - ASSERT(t >= 0.0 && t <= 1.0); - *dstX1 = maxValue; - bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F; - *srcX1 = *srcX0 + (GLint) (t * (*srcX1 - *srcX0) + bias); - } - else if (*dstX0 > maxValue) { - /* X0 outside right edge */ - ASSERT(*dstX1 < maxValue); /* X1 should be inside right edge */ - t = (GLfloat) (maxValue - *dstX1) / (GLfloat) (*dstX0 - *dstX1); - /* chop off [t, 1] part */ - ASSERT(t >= 0.0 && t <= 1.0); - *dstX0 = maxValue; - bias = (*srcX0 < *srcX1) ? -0.5F : 0.5F; - *srcX0 = *srcX1 + (GLint) (t * (*srcX0 - *srcX1) + bias); - } -} - - -/** - * Clip dst coords against Xmin (or Ymin). - */ -static INLINE void -clip_left_or_bottom(GLint *srcX0, GLint *srcX1, - GLint *dstX0, GLint *dstX1, - GLint minValue) -{ - GLfloat t, bias; - - if (*dstX0 < minValue) { - /* X0 outside left edge */ - ASSERT(*dstX1 > minValue); /* X1 should be inside left edge */ - t = (GLfloat) (minValue - *dstX0) / (GLfloat) (*dstX1 - *dstX0); - /* chop off [0, t] part */ - ASSERT(t >= 0.0 && t <= 1.0); - *dstX0 = minValue; - bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F; /* flipped??? */ - *srcX0 = *srcX0 + (GLint) (t * (*srcX1 - *srcX0) + bias); - } - else if (*dstX1 < minValue) { - /* X1 outside left edge */ - ASSERT(*dstX0 > minValue); /* X0 should be inside left edge */ - t = (GLfloat) (minValue - *dstX1) / (GLfloat) (*dstX0 - *dstX1); - /* chop off [0, t] part */ - ASSERT(t >= 0.0 && t <= 1.0); - *dstX1 = minValue; - bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F; - *srcX1 = *srcX1 + (GLint) (t * (*srcX0 - *srcX1) + bias); - } -} - - -/** - * Do clipping of blit src/dest rectangles. - * The dest rect is clipped against both the buffer bounds and scissor bounds. - * The src rect is just clipped against the buffer bounds. - * - * When either the src or dest rect is clipped, the other is also clipped - * proportionately! - * - * Note that X0 need not be less than X1 (same for Y) for either the source - * and dest rects. That makes the clipping a little trickier. - * - * \return GL_TRUE if anything is left to draw, GL_FALSE if totally clipped - */ -GLboolean -_mesa_clip_blit(struct gl_context *ctx, - GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1, - GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1) -{ - const GLint srcXmin = 0; - const GLint srcXmax = ctx->ReadBuffer->Width; - const GLint srcYmin = 0; - const GLint srcYmax = ctx->ReadBuffer->Height; - - /* these include scissor bounds */ - const GLint dstXmin = ctx->DrawBuffer->_Xmin; - const GLint dstXmax = ctx->DrawBuffer->_Xmax; - const GLint dstYmin = ctx->DrawBuffer->_Ymin; - const GLint dstYmax = ctx->DrawBuffer->_Ymax; - - /* - printf("PreClipX: src: %d .. %d dst: %d .. %d\n", - *srcX0, *srcX1, *dstX0, *dstX1); - printf("PreClipY: src: %d .. %d dst: %d .. %d\n", - *srcY0, *srcY1, *dstY0, *dstY1); - */ - - /* trivial rejection tests */ - if (*dstX0 == *dstX1) - return GL_FALSE; /* no width */ - if (*dstX0 <= dstXmin && *dstX1 <= dstXmin) - return GL_FALSE; /* totally out (left) of bounds */ - if (*dstX0 >= dstXmax && *dstX1 >= dstXmax) - return GL_FALSE; /* totally out (right) of bounds */ - - if (*dstY0 == *dstY1) - return GL_FALSE; - if (*dstY0 <= dstYmin && *dstY1 <= dstYmin) - return GL_FALSE; - if (*dstY0 >= dstYmax && *dstY1 >= dstYmax) - return GL_FALSE; - - if (*srcX0 == *srcX1) - return GL_FALSE; - if (*srcX0 <= srcXmin && *srcX1 <= srcXmin) - return GL_FALSE; - if (*srcX0 >= srcXmax && *srcX1 >= srcXmax) - return GL_FALSE; - - if (*srcY0 == *srcY1) - return GL_FALSE; - if (*srcY0 <= srcYmin && *srcY1 <= srcYmin) - return GL_FALSE; - if (*srcY0 >= srcYmax && *srcY1 >= srcYmax) - return GL_FALSE; - - /* - * dest clip - */ - clip_right_or_top(srcX0, srcX1, dstX0, dstX1, dstXmax); - clip_right_or_top(srcY0, srcY1, dstY0, dstY1, dstYmax); - clip_left_or_bottom(srcX0, srcX1, dstX0, dstX1, dstXmin); - clip_left_or_bottom(srcY0, srcY1, dstY0, dstY1, dstYmin); - - /* - * src clip (just swap src/dst values from above) - */ - clip_right_or_top(dstX0, dstX1, srcX0, srcX1, srcXmax); - clip_right_or_top(dstY0, dstY1, srcY0, srcY1, srcYmax); - clip_left_or_bottom(dstX0, dstX1, srcX0, srcX1, srcXmin); - clip_left_or_bottom(dstY0, dstY1, srcY0, srcY1, srcYmin); - - /* - printf("PostClipX: src: %d .. %d dst: %d .. %d\n", - *srcX0, *srcX1, *dstX0, *dstX1); - printf("PostClipY: src: %d .. %d dst: %d .. %d\n", - *srcY0, *srcY1, *dstY0, *dstY1); - */ - - ASSERT(*dstX0 >= dstXmin); - ASSERT(*dstX0 <= dstXmax); - ASSERT(*dstX1 >= dstXmin); - ASSERT(*dstX1 <= dstXmax); - - ASSERT(*dstY0 >= dstYmin); - ASSERT(*dstY0 <= dstYmax); - ASSERT(*dstY1 >= dstYmin); - ASSERT(*dstY1 <= dstYmax); - - ASSERT(*srcX0 >= srcXmin); - ASSERT(*srcX0 <= srcXmax); - ASSERT(*srcX1 >= srcXmin); - ASSERT(*srcX1 <= srcXmax); - - ASSERT(*srcY0 >= srcYmin); - ASSERT(*srcY0 <= srcYmax); - ASSERT(*srcY1 >= srcYmin); - ASSERT(*srcY1 <= srcYmax); - - return GL_TRUE; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.5
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file image.c
+ * Image handling.
+ */
+
+
+#include "glheader.h"
+#include "colormac.h"
+#include "image.h"
+#include "imports.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+
+
+/**
+ * NOTE:
+ * Normally, BYTE_TO_FLOAT(0) returns 0.00392 That causes problems when
+ * we later convert the float to a packed integer value (such as for
+ * GL_RGB5_A1) because we'll wind up with a non-zero value.
+ *
+ * We redefine the macros here so zero is handled correctly.
+ */
+#undef BYTE_TO_FLOAT
+#define BYTE_TO_FLOAT(B) ((B) == 0 ? 0.0F : ((2.0F * (B) + 1.0F) * (1.0F/255.0F)))
+
+#undef SHORT_TO_FLOAT
+#define SHORT_TO_FLOAT(S) ((S) == 0 ? 0.0F : ((2.0F * (S) + 1.0F) * (1.0F/65535.0F)))
+
+
+
+/** Compute ceiling of integer quotient of A divided by B. */
+#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
+
+
+/**
+ * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_type_is_packed(GLenum type)
+{
+ switch (type) {
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case MESA_UNSIGNED_BYTE_4_4:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ case GL_UNSIGNED_INT_24_8_EXT:
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+
+/**
+ * Flip the order of the 2 bytes in each word in the given array.
+ *
+ * \param p array.
+ * \param n number of words.
+ */
+void
+_mesa_swap2( GLushort *p, GLuint n )
+{
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ p[i] = (p[i] >> 8) | ((p[i] << 8) & 0xff00);
+ }
+}
+
+
+
+/*
+ * Flip the order of the 4 bytes in each word in the given array.
+ */
+void
+_mesa_swap4( GLuint *p, GLuint n )
+{
+ GLuint i, a, b;
+ for (i = 0; i < n; i++) {
+ b = p[i];
+ a = (b >> 24)
+ | ((b >> 8) & 0xff00)
+ | ((b << 8) & 0xff0000)
+ | ((b << 24) & 0xff000000);
+ p[i] = a;
+ }
+}
+
+
+/**
+ * Get the size of a GL data type.
+ *
+ * \param type GL data type.
+ *
+ * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
+ * if an invalid type enum.
+ */
+GLint
+_mesa_sizeof_type( GLenum type )
+{
+ switch (type) {
+ case GL_BITMAP:
+ return 0;
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ case GL_BYTE:
+ return sizeof(GLbyte);
+ case GL_UNSIGNED_SHORT:
+ return sizeof(GLushort);
+ case GL_SHORT:
+ return sizeof(GLshort);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_INT:
+ return sizeof(GLint);
+ case GL_FLOAT:
+ return sizeof(GLfloat);
+ case GL_DOUBLE:
+ return sizeof(GLdouble);
+ case GL_HALF_FLOAT_ARB:
+ return sizeof(GLhalfARB);
+ case GL_FIXED:
+ return sizeof(GLfixed);
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * Same as _mesa_sizeof_type() but also accepting the packed pixel
+ * format data types.
+ */
+GLint
+_mesa_sizeof_packed_type( GLenum type )
+{
+ switch (type) {
+ case GL_BITMAP:
+ return 0;
+ case GL_UNSIGNED_BYTE:
+ return sizeof(GLubyte);
+ case GL_BYTE:
+ return sizeof(GLbyte);
+ case GL_UNSIGNED_SHORT:
+ return sizeof(GLushort);
+ case GL_SHORT:
+ return sizeof(GLshort);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_INT:
+ return sizeof(GLint);
+ case GL_HALF_FLOAT_ARB:
+ return sizeof(GLhalfARB);
+ case GL_FLOAT:
+ return sizeof(GLfloat);
+ case GL_UNSIGNED_BYTE_3_3_2:
+ return sizeof(GLubyte);
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ return sizeof(GLubyte);
+ case MESA_UNSIGNED_BYTE_4_4:
+ return sizeof(GLubyte);
+ case GL_UNSIGNED_SHORT_5_6_5:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_INT_8_8_8_8:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_INT_10_10_10_2:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ return sizeof(GLushort);
+ case GL_UNSIGNED_INT_24_8_EXT:
+ return sizeof(GLuint);
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * Get the number of components in a pixel format.
+ *
+ * \param format pixel format.
+ *
+ * \return the number of components in the given format, or -1 if a bad format.
+ */
+GLint
+_mesa_components_in_format( GLenum format )
+{
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ case GL_STENCIL_INDEX:
+ case GL_DEPTH_COMPONENT:
+ case GL_RED:
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_INTENSITY:
+ return 1;
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ case GL_RG:
+ return 2;
+ case GL_RGB:
+ case GL_RGB_INTEGER_EXT:
+ return 3;
+ case GL_RGBA:
+ case GL_RGBA_INTEGER_EXT:
+ return 4;
+ case GL_BGR:
+ return 3;
+ case GL_BGRA:
+ return 4;
+ case GL_ABGR_EXT:
+ return 4;
+ case GL_YCBCR_MESA:
+ return 2;
+ case GL_DEPTH_STENCIL_EXT:
+ return 2;
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ return 2;
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * Get the bytes per pixel of pixel format type pair.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return bytes per pixel, or -1 if a bad format or type was given.
+ */
+GLint
+_mesa_bytes_per_pixel( GLenum format, GLenum type )
+{
+ GLint comps = _mesa_components_in_format( format );
+ if (comps < 0)
+ return -1;
+
+ switch (type) {
+ case GL_BITMAP:
+ return 0; /* special case */
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ return comps * sizeof(GLubyte);
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ return comps * sizeof(GLshort);
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return comps * sizeof(GLint);
+ case GL_FLOAT:
+ return comps * sizeof(GLfloat);
+ case GL_HALF_FLOAT_ARB:
+ return comps * sizeof(GLhalfARB);
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ if (format == GL_RGB || format == GL_BGR ||
+ format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
+ return sizeof(GLubyte);
+ else
+ return -1; /* error */
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ if (format == GL_RGB || format == GL_BGR ||
+ format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
+ return sizeof(GLushort);
+ else
+ return -1; /* error */
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
+ return sizeof(GLushort);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
+ format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
+ return sizeof(GLuint);
+ else
+ return -1;
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ if (format == GL_YCBCR_MESA)
+ return sizeof(GLushort);
+ else
+ return -1;
+ case GL_UNSIGNED_INT_24_8_EXT:
+ if (format == GL_DEPTH_STENCIL_EXT)
+ return sizeof(GLuint);
+ else
+ return -1;
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * Test for a legal pixel format and type.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return GL_TRUE if the given pixel format and type are legal, or GL_FALSE
+ * otherwise.
+ */
+GLboolean
+_mesa_is_legal_format_and_type(const struct gl_context *ctx,
+ GLenum format, GLenum type)
+{
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_STENCIL_INDEX:
+ switch (type) {
+ case GL_BITMAP:
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+#if 0 /* not legal! see table 3.6 of the 1.5 spec */
+ case GL_INTENSITY:
+#endif
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_DEPTH_COMPONENT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_RG:
+ if (!ctx->Extensions.ARB_texture_rg)
+ return GL_FALSE;
+
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_RGB:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_BGR:
+ switch (type) {
+ /* NOTE: no packed types are supported with BGR. That's
+ * intentional, according to the GL spec.
+ */
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ return GL_TRUE;
+ case GL_HALF_FLOAT_ARB:
+ return ctx->Extensions.ARB_half_float_pixel;
+ default:
+ return GL_FALSE;
+ }
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
+ type == GL_UNSIGNED_SHORT_8_8_REV_MESA)
+ return GL_TRUE;
+ else
+ return GL_FALSE;
+ case GL_DEPTH_STENCIL_EXT:
+ if (ctx->Extensions.EXT_packed_depth_stencil
+ && type == GL_UNSIGNED_INT_24_8_EXT)
+ return GL_TRUE;
+ else
+ return GL_FALSE;
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_FLOAT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+
+ /* integer-valued formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return ctx->Extensions.EXT_texture_integer;
+ default:
+ return GL_FALSE;
+ }
+
+ case GL_RGB_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return ctx->Extensions.EXT_texture_integer;
+ default:
+ return GL_FALSE;
+ }
+
+ case GL_BGR_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ /* NOTE: no packed formats w/ BGR format */
+ return ctx->Extensions.EXT_texture_integer;
+ default:
+ return GL_FALSE;
+ }
+
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ return ctx->Extensions.EXT_texture_integer;
+ default:
+ return GL_FALSE;
+ }
+
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ switch (type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT:
+ case GL_INT:
+ case GL_UNSIGNED_INT:
+ return ctx->Extensions.EXT_texture_integer;
+ default:
+ return GL_FALSE;
+ }
+
+ default:
+ ; /* fall-through */
+ }
+ return GL_FALSE;
+}
+
+
+/**
+ * Test if the given image format is a color/RGBA format (i.e., not color
+ * index, depth, stencil, etc).
+ * \param format the image format value (may by an internal texture format)
+ * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_is_color_format(GLenum format)
+{
+ switch (format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case GL_R8:
+ case GL_R16:
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case 3:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case 4:
+ case GL_ABGR_EXT:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ /* float texture formats */
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ case GL_R16F:
+ case GL_R32F:
+ case GL_RG16F:
+ case GL_RG32F:
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ /* compressed formats */
+ case GL_COMPRESSED_ALPHA:
+ case GL_COMPRESSED_LUMINANCE:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ case GL_COMPRESSED_INTENSITY:
+ case GL_COMPRESSED_RED:
+ case GL_COMPRESSED_RG:
+ case GL_COMPRESSED_RGB:
+ case GL_COMPRESSED_RGBA:
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+#if FEATURE_EXT_texture_sRGB
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+#endif /* FEATURE_EXT_texture_sRGB */
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ /* signed, normalized texture formats */
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ /* generic integer formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_RGB_INTEGER_EXT:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ /* sized integer formats */
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ return GL_TRUE;
+ case GL_YCBCR_MESA: /* not considered to be RGB */
+ /* fall-through */
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a color index format.
+ */
+GLboolean
+_mesa_is_index_format(GLenum format)
+{
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth component format.
+ */
+GLboolean
+_mesa_is_depth_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a stencil format.
+ */
+GLboolean
+_mesa_is_stencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_STENCIL_INDEX:
+ case GL_DEPTH_STENCIL:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a YCbCr format.
+ */
+GLboolean
+_mesa_is_ycbcr_format(GLenum format)
+{
+ switch (format) {
+ case GL_YCBCR_MESA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth+stencil format.
+ */
+GLboolean
+_mesa_is_depthstencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH24_STENCIL8_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth or stencil format.
+ */
+GLboolean
+_mesa_is_depth_or_stencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ case GL_STENCIL_INDEX:
+ case GL_STENCIL_INDEX1_EXT:
+ case GL_STENCIL_INDEX4_EXT:
+ case GL_STENCIL_INDEX8_EXT:
+ case GL_STENCIL_INDEX16_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a dudv format.
+ */
+GLboolean
+_mesa_is_dudv_format(GLenum format)
+{
+ switch (format) {
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given format is an integer (non-normalized) format.
+ */
+GLboolean
+_mesa_is_integer_format(GLenum format)
+{
+ switch (format) {
+ /* generic integer formats */
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_RGB_INTEGER_EXT:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
+ case GL_LUMINANCE_INTEGER_EXT:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ /* specific integer formats */
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if an image format is a supported compressed format.
+ * \param format the internal format token provided by the user.
+ * \return GL_TRUE if compressed, GL_FALSE if uncompressed
+ */
+GLboolean
+_mesa_is_compressed_format(struct gl_context *ctx, GLenum format)
+{
+ switch (format) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return ctx->Extensions.EXT_texture_compression_s3tc;
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return ctx->Extensions.S3_s3tc;
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return ctx->Extensions.EXT_texture_sRGB
+ && ctx->Extensions.EXT_texture_compression_s3tc;
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return ctx->Extensions.TDFX_texture_compression_FXT1;
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return ctx->Extensions.ARB_texture_compression_rgtc;
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return ctx->Extensions.EXT_texture_compression_latc;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return ctx->Extensions.ATI_texture_compression_3dc;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Return the address of a specific pixel in an image (1D, 2D or 3D).
+ *
+ * Pixel unpacking/packing parameters are observed according to \p packing.
+ *
+ * \param dimensions either 1, 2 or 3 to indicate dimensionality of image
+ * \param image starting address of image data
+ * \param width the image width
+ * \param height theimage height
+ * \param format the pixel format
+ * \param type the pixel data type
+ * \param packing the pixelstore attributes
+ * \param img which image in the volume (0 for 1D or 2D images)
+ * \param row row of pixel in the image (0 for 1D images)
+ * \param column column of pixel in the image
+ *
+ * \return address of pixel on success, or NULL on error.
+ *
+ * \sa gl_pixelstore_attrib.
+ */
+GLvoid *
+_mesa_image_address( GLuint dimensions,
+ const struct gl_pixelstore_attrib *packing,
+ const GLvoid *image,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLint img, GLint row, GLint column )
+{
+ GLint alignment; /* 1, 2 or 4 */
+ GLint pixels_per_row;
+ GLint rows_per_image;
+ GLint skiprows;
+ GLint skippixels;
+ GLint skipimages; /* for 3-D volume images */
+ GLubyte *pixel_addr;
+
+ ASSERT(dimensions >= 1 && dimensions <= 3);
+
+ alignment = packing->Alignment;
+ if (packing->RowLength > 0) {
+ pixels_per_row = packing->RowLength;
+ }
+ else {
+ pixels_per_row = width;
+ }
+ if (packing->ImageHeight > 0) {
+ rows_per_image = packing->ImageHeight;
+ }
+ else {
+ rows_per_image = height;
+ }
+
+ skippixels = packing->SkipPixels;
+ /* Note: SKIP_ROWS _is_ used for 1D images */
+ skiprows = packing->SkipRows;
+ /* Note: SKIP_IMAGES is only used for 3D images */
+ skipimages = (dimensions == 3) ? packing->SkipImages : 0;
+
+ if (type == GL_BITMAP) {
+ /* BITMAP data */
+ GLint comp_per_pixel; /* components per pixel */
+ GLint bytes_per_comp; /* bytes per component */
+ GLint bytes_per_row;
+ GLint bytes_per_image;
+
+ /* Compute bytes per component */
+ bytes_per_comp = _mesa_sizeof_packed_type( type );
+ if (bytes_per_comp < 0) {
+ return NULL;
+ }
+
+ /* Compute number of components per pixel */
+ comp_per_pixel = _mesa_components_in_format( format );
+ if (comp_per_pixel < 0) {
+ return NULL;
+ }
+
+ bytes_per_row = alignment
+ * CEILING( comp_per_pixel*pixels_per_row, 8*alignment );
+
+ bytes_per_image = bytes_per_row * rows_per_image;
+
+ pixel_addr = (GLubyte *) image
+ + (skipimages + img) * bytes_per_image
+ + (skiprows + row) * bytes_per_row
+ + (skippixels + column) / 8;
+ }
+ else {
+ /* Non-BITMAP data */
+ GLint bytes_per_pixel, bytes_per_row, remainder, bytes_per_image;
+ GLint topOfImage;
+
+ bytes_per_pixel = _mesa_bytes_per_pixel( format, type );
+
+ /* The pixel type and format should have been error checked earlier */
+ assert(bytes_per_pixel > 0);
+
+ bytes_per_row = pixels_per_row * bytes_per_pixel;
+ remainder = bytes_per_row % alignment;
+ if (remainder > 0)
+ bytes_per_row += (alignment - remainder);
+
+ ASSERT(bytes_per_row % alignment == 0);
+
+ bytes_per_image = bytes_per_row * rows_per_image;
+
+ if (packing->Invert) {
+ /* set pixel_addr to the last row */
+ topOfImage = bytes_per_row * (height - 1);
+ bytes_per_row = -bytes_per_row;
+ }
+ else {
+ topOfImage = 0;
+ }
+
+ /* compute final pixel address */
+ pixel_addr = (GLubyte *) image
+ + (skipimages + img) * bytes_per_image
+ + topOfImage
+ + (skiprows + row) * bytes_per_row
+ + (skippixels + column) * bytes_per_pixel;
+ }
+
+ return (GLvoid *) pixel_addr;
+}
+
+
+GLvoid *
+_mesa_image_address1d( const struct gl_pixelstore_attrib *packing,
+ const GLvoid *image,
+ GLsizei width,
+ GLenum format, GLenum type,
+ GLint column )
+{
+ return _mesa_image_address(1, packing, image, width, 1,
+ format, type, 0, 0, column);
+}
+
+
+GLvoid *
+_mesa_image_address2d( const struct gl_pixelstore_attrib *packing,
+ const GLvoid *image,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLint row, GLint column )
+{
+ return _mesa_image_address(2, packing, image, width, height,
+ format, type, 0, row, column);
+}
+
+
+GLvoid *
+_mesa_image_address3d( const struct gl_pixelstore_attrib *packing,
+ const GLvoid *image,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ GLint img, GLint row, GLint column )
+{
+ return _mesa_image_address(3, packing, image, width, height,
+ format, type, img, row, column);
+}
+
+
+
+/**
+ * Compute the stride (in bytes) between image rows.
+ *
+ * \param packing the pixelstore attributes
+ * \param width image width.
+ * \param format pixel format.
+ * \param type pixel data type.
+ *
+ * \return the stride in bytes for the given parameters, or -1 if error
+ */
+GLint
+_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
+ GLint width, GLenum format, GLenum type )
+{
+ GLint bytesPerRow, remainder;
+
+ ASSERT(packing);
+
+ if (type == GL_BITMAP) {
+ if (packing->RowLength == 0) {
+ bytesPerRow = (width + 7) / 8;
+ }
+ else {
+ bytesPerRow = (packing->RowLength + 7) / 8;
+ }
+ }
+ else {
+ /* Non-BITMAP data */
+ const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
+ if (bytesPerPixel <= 0)
+ return -1; /* error */
+ if (packing->RowLength == 0) {
+ bytesPerRow = bytesPerPixel * width;
+ }
+ else {
+ bytesPerRow = bytesPerPixel * packing->RowLength;
+ }
+ }
+
+ remainder = bytesPerRow % packing->Alignment;
+ if (remainder > 0) {
+ bytesPerRow += (packing->Alignment - remainder);
+ }
+
+ if (packing->Invert) {
+ /* negate the bytes per row (negative row stride) */
+ bytesPerRow = -bytesPerRow;
+ }
+
+ return bytesPerRow;
+}
+
+
+/*
+ * Compute the stride between images in a 3D texture (in bytes) for the given
+ * pixel packing parameters and image width, format and type.
+ */
+GLint
+_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
+ GLint width, GLint height,
+ GLenum format, GLenum type )
+{
+ GLint bytesPerRow, bytesPerImage, remainder;
+
+ ASSERT(packing);
+
+ if (type == GL_BITMAP) {
+ if (packing->RowLength == 0) {
+ bytesPerRow = (width + 7) / 8;
+ }
+ else {
+ bytesPerRow = (packing->RowLength + 7) / 8;
+ }
+ }
+ else {
+ const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
+
+ if (bytesPerPixel <= 0)
+ return -1; /* error */
+ if (packing->RowLength == 0) {
+ bytesPerRow = bytesPerPixel * width;
+ }
+ else {
+ bytesPerRow = bytesPerPixel * packing->RowLength;
+ }
+ }
+
+ remainder = bytesPerRow % packing->Alignment;
+ if (remainder > 0)
+ bytesPerRow += (packing->Alignment - remainder);
+
+ if (packing->ImageHeight == 0)
+ bytesPerImage = bytesPerRow * height;
+ else
+ bytesPerImage = bytesPerRow * packing->ImageHeight;
+
+ return bytesPerImage;
+}
+
+
+
+/**
+ * "Expand" a bitmap from 1-bit per pixel to 8-bits per pixel.
+ * This is typically used to convert a bitmap into a GLubyte/pixel texture.
+ * "On" bits will set texels to \p onValue.
+ * "Off" bits will not modify texels.
+ * \param width src bitmap width in pixels
+ * \param height src bitmap height in pixels
+ * \param unpack bitmap unpacking state
+ * \param bitmap the src bitmap data
+ * \param destBuffer start of dest buffer
+ * \param destStride row stride in dest buffer
+ * \param onValue if bit is 1, set destBuffer pixel to this value
+ */
+void
+_mesa_expand_bitmap(GLsizei width, GLsizei height,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap,
+ GLubyte *destBuffer, GLint destStride,
+ GLubyte onValue)
+{
+ const GLubyte *srcRow = (const GLubyte *)
+ _mesa_image_address2d(unpack, bitmap, width, height,
+ GL_COLOR_INDEX, GL_BITMAP, 0, 0);
+ const GLint srcStride = _mesa_image_row_stride(unpack, width,
+ GL_COLOR_INDEX, GL_BITMAP);
+ GLint row, col;
+
+#define SET_PIXEL(COL, ROW) \
+ destBuffer[(ROW) * destStride + (COL)] = onValue;
+
+ for (row = 0; row < height; row++) {
+ const GLubyte *src = srcRow;
+
+ if (unpack->LsbFirst) {
+ /* Lsb first */
+ GLubyte mask = 1U << (unpack->SkipPixels & 0x7);
+ for (col = 0; col < width; col++) {
+
+ if (*src & mask) {
+ SET_PIXEL(col, row);
+ }
+
+ if (mask == 128U) {
+ src++;
+ mask = 1U;
+ }
+ else {
+ mask = mask << 1;
+ }
+ }
+
+ /* get ready for next row */
+ if (mask != 1)
+ src++;
+ }
+ else {
+ /* Msb first */
+ GLubyte mask = 128U >> (unpack->SkipPixels & 0x7);
+ for (col = 0; col < width; col++) {
+
+ if (*src & mask) {
+ SET_PIXEL(col, row);
+ }
+
+ if (mask == 1U) {
+ src++;
+ mask = 128U;
+ }
+ else {
+ mask = mask >> 1;
+ }
+ }
+
+ /* get ready for next row */
+ if (mask != 128)
+ src++;
+ }
+
+ srcRow += srcStride;
+ } /* row */
+
+#undef SET_PIXEL
+}
+
+
+
+
+/**
+ * Convert an array of RGBA colors from one datatype to another.
+ * NOTE: src may equal dst. In that case, we use a temporary buffer.
+ */
+void
+_mesa_convert_colors(GLenum srcType, const GLvoid *src,
+ GLenum dstType, GLvoid *dst,
+ GLuint count, const GLubyte mask[])
+{
+ GLuint tempBuffer[MAX_WIDTH][4];
+ const GLboolean useTemp = (src == dst);
+
+ ASSERT(srcType != dstType);
+
+ switch (srcType) {
+ case GL_UNSIGNED_BYTE:
+ if (dstType == GL_UNSIGNED_SHORT) {
+ const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src;
+ GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst2[i][RCOMP] = UBYTE_TO_USHORT(src1[i][RCOMP]);
+ dst2[i][GCOMP] = UBYTE_TO_USHORT(src1[i][GCOMP]);
+ dst2[i][BCOMP] = UBYTE_TO_USHORT(src1[i][BCOMP]);
+ dst2[i][ACOMP] = UBYTE_TO_USHORT(src1[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort));
+ }
+ else {
+ const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src;
+ GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ ASSERT(dstType == GL_FLOAT);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst4[i][RCOMP] = UBYTE_TO_FLOAT(src1[i][RCOMP]);
+ dst4[i][GCOMP] = UBYTE_TO_FLOAT(src1[i][GCOMP]);
+ dst4[i][BCOMP] = UBYTE_TO_FLOAT(src1[i][BCOMP]);
+ dst4[i][ACOMP] = UBYTE_TO_FLOAT(src1[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat));
+ }
+ break;
+ case GL_UNSIGNED_SHORT:
+ if (dstType == GL_UNSIGNED_BYTE) {
+ const GLushort (*src2)[4] = (const GLushort (*)[4]) src;
+ GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst1[i][RCOMP] = USHORT_TO_UBYTE(src2[i][RCOMP]);
+ dst1[i][GCOMP] = USHORT_TO_UBYTE(src2[i][GCOMP]);
+ dst1[i][BCOMP] = USHORT_TO_UBYTE(src2[i][BCOMP]);
+ dst1[i][ACOMP] = USHORT_TO_UBYTE(src2[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte));
+ }
+ else {
+ const GLushort (*src2)[4] = (const GLushort (*)[4]) src;
+ GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ ASSERT(dstType == GL_FLOAT);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst4[i][RCOMP] = USHORT_TO_FLOAT(src2[i][RCOMP]);
+ dst4[i][GCOMP] = USHORT_TO_FLOAT(src2[i][GCOMP]);
+ dst4[i][BCOMP] = USHORT_TO_FLOAT(src2[i][BCOMP]);
+ dst4[i][ACOMP] = USHORT_TO_FLOAT(src2[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat));
+ }
+ break;
+ case GL_FLOAT:
+ if (dstType == GL_UNSIGNED_BYTE) {
+ const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src;
+ GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][RCOMP], src4[i][RCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][GCOMP], src4[i][GCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][BCOMP], src4[i][BCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][ACOMP], src4[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte));
+ }
+ else {
+ const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src;
+ GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst);
+ GLuint i;
+ ASSERT(dstType == GL_UNSIGNED_SHORT);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][RCOMP], src4[i][RCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][GCOMP], src4[i][GCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][BCOMP], src4[i][BCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][ACOMP], src4[i][ACOMP]);
+ }
+ }
+ if (useTemp)
+ memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort));
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "Invalid datatype in _mesa_convert_colors");
+ }
+}
+
+
+
+
+/**
+ * Perform basic clipping for glDrawPixels. The image's position and size
+ * and the unpack SkipPixels and SkipRows are adjusted so that the image
+ * region is entirely within the window and scissor bounds.
+ * NOTE: this will only work when glPixelZoom is (1, 1) or (1, -1).
+ * If Pixel.ZoomY is -1, *destY will be changed to be the first row which
+ * we'll actually write. Beforehand, *destY-1 is the first drawing row.
+ *
+ * \return GL_TRUE if image is ready for drawing or
+ * GL_FALSE if image was completely clipped away (draw nothing)
+ */
+GLboolean
+_mesa_clip_drawpixels(const struct gl_context *ctx,
+ GLint *destX, GLint *destY,
+ GLsizei *width, GLsizei *height,
+ struct gl_pixelstore_attrib *unpack)
+{
+ const struct gl_framebuffer *buffer = ctx->DrawBuffer;
+
+ if (unpack->RowLength == 0) {
+ unpack->RowLength = *width;
+ }
+
+ ASSERT(ctx->Pixel.ZoomX == 1.0F);
+ ASSERT(ctx->Pixel.ZoomY == 1.0F || ctx->Pixel.ZoomY == -1.0F);
+
+ /* left clipping */
+ if (*destX < buffer->_Xmin) {
+ unpack->SkipPixels += (buffer->_Xmin - *destX);
+ *width -= (buffer->_Xmin - *destX);
+ *destX = buffer->_Xmin;
+ }
+ /* right clipping */
+ if (*destX + *width > buffer->_Xmax)
+ *width -= (*destX + *width - buffer->_Xmax);
+
+ if (*width <= 0)
+ return GL_FALSE;
+
+ if (ctx->Pixel.ZoomY == 1.0F) {
+ /* bottom clipping */
+ if (*destY < buffer->_Ymin) {
+ unpack->SkipRows += (buffer->_Ymin - *destY);
+ *height -= (buffer->_Ymin - *destY);
+ *destY = buffer->_Ymin;
+ }
+ /* top clipping */
+ if (*destY + *height > buffer->_Ymax)
+ *height -= (*destY + *height - buffer->_Ymax);
+ }
+ else { /* upside down */
+ /* top clipping */
+ if (*destY > buffer->_Ymax) {
+ unpack->SkipRows += (*destY - buffer->_Ymax);
+ *height -= (*destY - buffer->_Ymax);
+ *destY = buffer->_Ymax;
+ }
+ /* bottom clipping */
+ if (*destY - *height < buffer->_Ymin)
+ *height -= (buffer->_Ymin - (*destY - *height));
+ /* adjust destY so it's the first row to write to */
+ (*destY)--;
+ }
+
+ if (*height <= 0)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Perform clipping for glReadPixels. The image's window position
+ * and size, and the pack skipPixels, skipRows and rowLength are adjusted
+ * so that the image region is entirely within the window bounds.
+ * Note: this is different from _mesa_clip_drawpixels() in that the
+ * scissor box is ignored, and we use the bounds of the current readbuffer
+ * surface.
+ *
+ * \return GL_TRUE if region to read is in bounds
+ * GL_FALSE if region is completely out of bounds (nothing to read)
+ */
+GLboolean
+_mesa_clip_readpixels(const struct gl_context *ctx,
+ GLint *srcX, GLint *srcY,
+ GLsizei *width, GLsizei *height,
+ struct gl_pixelstore_attrib *pack)
+{
+ const struct gl_framebuffer *buffer = ctx->ReadBuffer;
+
+ if (pack->RowLength == 0) {
+ pack->RowLength = *width;
+ }
+
+ /* left clipping */
+ if (*srcX < 0) {
+ pack->SkipPixels += (0 - *srcX);
+ *width -= (0 - *srcX);
+ *srcX = 0;
+ }
+ /* right clipping */
+ if (*srcX + *width > (GLsizei) buffer->Width)
+ *width -= (*srcX + *width - buffer->Width);
+
+ if (*width <= 0)
+ return GL_FALSE;
+
+ /* bottom clipping */
+ if (*srcY < 0) {
+ pack->SkipRows += (0 - *srcY);
+ *height -= (0 - *srcY);
+ *srcY = 0;
+ }
+ /* top clipping */
+ if (*srcY + *height > (GLsizei) buffer->Height)
+ *height -= (*srcY + *height - buffer->Height);
+
+ if (*height <= 0)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Do clipping for a glCopyTexSubImage call.
+ * The framebuffer source region might extend outside the framebuffer
+ * bounds. Clip the source region against the framebuffer bounds and
+ * adjust the texture/dest position and size accordingly.
+ *
+ * \return GL_FALSE if region is totally clipped, GL_TRUE otherwise.
+ */
+GLboolean
+_mesa_clip_copytexsubimage(const struct gl_context *ctx,
+ GLint *destX, GLint *destY,
+ GLint *srcX, GLint *srcY,
+ GLsizei *width, GLsizei *height)
+{
+ const struct gl_framebuffer *fb = ctx->ReadBuffer;
+ const GLint srcX0 = *srcX, srcY0 = *srcY;
+
+ if (_mesa_clip_to_region(0, 0, fb->Width, fb->Height,
+ srcX, srcY, width, height)) {
+ *destX = *destX + *srcX - srcX0;
+ *destY = *destY + *srcY - srcY0;
+
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+}
+
+
+
+/**
+ * Clip the rectangle defined by (x, y, width, height) against the bounds
+ * specified by [xmin, xmax) and [ymin, ymax).
+ * \return GL_FALSE if rect is totally clipped, GL_TRUE otherwise.
+ */
+GLboolean
+_mesa_clip_to_region(GLint xmin, GLint ymin,
+ GLint xmax, GLint ymax,
+ GLint *x, GLint *y,
+ GLsizei *width, GLsizei *height )
+{
+ /* left clipping */
+ if (*x < xmin) {
+ *width -= (xmin - *x);
+ *x = xmin;
+ }
+
+ /* right clipping */
+ if (*x + *width > xmax)
+ *width -= (*x + *width - xmax);
+
+ if (*width <= 0)
+ return GL_FALSE;
+
+ /* bottom (or top) clipping */
+ if (*y < ymin) {
+ *height -= (ymin - *y);
+ *y = ymin;
+ }
+
+ /* top (or bottom) clipping */
+ if (*y + *height > ymax)
+ *height -= (*y + *height - ymax);
+
+ if (*height <= 0)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Clip dst coords against Xmax (or Ymax).
+ */
+static INLINE void
+clip_right_or_top(GLint *srcX0, GLint *srcX1,
+ GLint *dstX0, GLint *dstX1,
+ GLint maxValue)
+{
+ GLfloat t, bias;
+
+ if (*dstX1 > maxValue) {
+ /* X1 outside right edge */
+ ASSERT(*dstX0 < maxValue); /* X0 should be inside right edge */
+ t = (GLfloat) (maxValue - *dstX0) / (GLfloat) (*dstX1 - *dstX0);
+ /* chop off [t, 1] part */
+ ASSERT(t >= 0.0 && t <= 1.0);
+ *dstX1 = maxValue;
+ bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F;
+ *srcX1 = *srcX0 + (GLint) (t * (*srcX1 - *srcX0) + bias);
+ }
+ else if (*dstX0 > maxValue) {
+ /* X0 outside right edge */
+ ASSERT(*dstX1 < maxValue); /* X1 should be inside right edge */
+ t = (GLfloat) (maxValue - *dstX1) / (GLfloat) (*dstX0 - *dstX1);
+ /* chop off [t, 1] part */
+ ASSERT(t >= 0.0 && t <= 1.0);
+ *dstX0 = maxValue;
+ bias = (*srcX0 < *srcX1) ? -0.5F : 0.5F;
+ *srcX0 = *srcX1 + (GLint) (t * (*srcX0 - *srcX1) + bias);
+ }
+}
+
+
+/**
+ * Clip dst coords against Xmin (or Ymin).
+ */
+static INLINE void
+clip_left_or_bottom(GLint *srcX0, GLint *srcX1,
+ GLint *dstX0, GLint *dstX1,
+ GLint minValue)
+{
+ GLfloat t, bias;
+
+ if (*dstX0 < minValue) {
+ /* X0 outside left edge */
+ ASSERT(*dstX1 > minValue); /* X1 should be inside left edge */
+ t = (GLfloat) (minValue - *dstX0) / (GLfloat) (*dstX1 - *dstX0);
+ /* chop off [0, t] part */
+ ASSERT(t >= 0.0 && t <= 1.0);
+ *dstX0 = minValue;
+ bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F; /* flipped??? */
+ *srcX0 = *srcX0 + (GLint) (t * (*srcX1 - *srcX0) + bias);
+ }
+ else if (*dstX1 < minValue) {
+ /* X1 outside left edge */
+ ASSERT(*dstX0 > minValue); /* X0 should be inside left edge */
+ t = (GLfloat) (minValue - *dstX1) / (GLfloat) (*dstX0 - *dstX1);
+ /* chop off [0, t] part */
+ ASSERT(t >= 0.0 && t <= 1.0);
+ *dstX1 = minValue;
+ bias = (*srcX0 < *srcX1) ? 0.5F : -0.5F;
+ *srcX1 = *srcX1 + (GLint) (t * (*srcX0 - *srcX1) + bias);
+ }
+}
+
+
+/**
+ * Do clipping of blit src/dest rectangles.
+ * The dest rect is clipped against both the buffer bounds and scissor bounds.
+ * The src rect is just clipped against the buffer bounds.
+ *
+ * When either the src or dest rect is clipped, the other is also clipped
+ * proportionately!
+ *
+ * Note that X0 need not be less than X1 (same for Y) for either the source
+ * and dest rects. That makes the clipping a little trickier.
+ *
+ * \return GL_TRUE if anything is left to draw, GL_FALSE if totally clipped
+ */
+GLboolean
+_mesa_clip_blit(struct gl_context *ctx,
+ GLint *srcX0, GLint *srcY0, GLint *srcX1, GLint *srcY1,
+ GLint *dstX0, GLint *dstY0, GLint *dstX1, GLint *dstY1)
+{
+ const GLint srcXmin = 0;
+ const GLint srcXmax = ctx->ReadBuffer->Width;
+ const GLint srcYmin = 0;
+ const GLint srcYmax = ctx->ReadBuffer->Height;
+
+ /* these include scissor bounds */
+ const GLint dstXmin = ctx->DrawBuffer->_Xmin;
+ const GLint dstXmax = ctx->DrawBuffer->_Xmax;
+ const GLint dstYmin = ctx->DrawBuffer->_Ymin;
+ const GLint dstYmax = ctx->DrawBuffer->_Ymax;
+
+ /*
+ printf("PreClipX: src: %d .. %d dst: %d .. %d\n",
+ *srcX0, *srcX1, *dstX0, *dstX1);
+ printf("PreClipY: src: %d .. %d dst: %d .. %d\n",
+ *srcY0, *srcY1, *dstY0, *dstY1);
+ */
+
+ /* trivial rejection tests */
+ if (*dstX0 == *dstX1)
+ return GL_FALSE; /* no width */
+ if (*dstX0 <= dstXmin && *dstX1 <= dstXmin)
+ return GL_FALSE; /* totally out (left) of bounds */
+ if (*dstX0 >= dstXmax && *dstX1 >= dstXmax)
+ return GL_FALSE; /* totally out (right) of bounds */
+
+ if (*dstY0 == *dstY1)
+ return GL_FALSE;
+ if (*dstY0 <= dstYmin && *dstY1 <= dstYmin)
+ return GL_FALSE;
+ if (*dstY0 >= dstYmax && *dstY1 >= dstYmax)
+ return GL_FALSE;
+
+ if (*srcX0 == *srcX1)
+ return GL_FALSE;
+ if (*srcX0 <= srcXmin && *srcX1 <= srcXmin)
+ return GL_FALSE;
+ if (*srcX0 >= srcXmax && *srcX1 >= srcXmax)
+ return GL_FALSE;
+
+ if (*srcY0 == *srcY1)
+ return GL_FALSE;
+ if (*srcY0 <= srcYmin && *srcY1 <= srcYmin)
+ return GL_FALSE;
+ if (*srcY0 >= srcYmax && *srcY1 >= srcYmax)
+ return GL_FALSE;
+
+ /*
+ * dest clip
+ */
+ clip_right_or_top(srcX0, srcX1, dstX0, dstX1, dstXmax);
+ clip_right_or_top(srcY0, srcY1, dstY0, dstY1, dstYmax);
+ clip_left_or_bottom(srcX0, srcX1, dstX0, dstX1, dstXmin);
+ clip_left_or_bottom(srcY0, srcY1, dstY0, dstY1, dstYmin);
+
+ /*
+ * src clip (just swap src/dst values from above)
+ */
+ clip_right_or_top(dstX0, dstX1, srcX0, srcX1, srcXmax);
+ clip_right_or_top(dstY0, dstY1, srcY0, srcY1, srcYmax);
+ clip_left_or_bottom(dstX0, dstX1, srcX0, srcX1, srcXmin);
+ clip_left_or_bottom(dstY0, dstY1, srcY0, srcY1, srcYmin);
+
+ /*
+ printf("PostClipX: src: %d .. %d dst: %d .. %d\n",
+ *srcX0, *srcX1, *dstX0, *dstX1);
+ printf("PostClipY: src: %d .. %d dst: %d .. %d\n",
+ *srcY0, *srcY1, *dstY0, *dstY1);
+ */
+
+ ASSERT(*dstX0 >= dstXmin);
+ ASSERT(*dstX0 <= dstXmax);
+ ASSERT(*dstX1 >= dstXmin);
+ ASSERT(*dstX1 <= dstXmax);
+
+ ASSERT(*dstY0 >= dstYmin);
+ ASSERT(*dstY0 <= dstYmax);
+ ASSERT(*dstY1 >= dstYmin);
+ ASSERT(*dstY1 <= dstYmax);
+
+ ASSERT(*srcX0 >= srcXmin);
+ ASSERT(*srcX0 <= srcXmax);
+ ASSERT(*srcX1 >= srcXmin);
+ ASSERT(*srcX1 <= srcXmax);
+
+ ASSERT(*srcY0 >= srcYmin);
+ ASSERT(*srcY0 <= srcYmax);
+ ASSERT(*srcY1 >= srcYmin);
+ ASSERT(*srcY1 <= srcYmax);
+
+ return GL_TRUE;
+}
diff --git a/mesalib/src/mesa/main/imports.h b/mesalib/src/mesa/main/imports.h index ce7baabe2..315c4119d 100644 --- a/mesalib/src/mesa/main/imports.h +++ b/mesalib/src/mesa/main/imports.h @@ -1,621 +1,621 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file imports.h - * Standard C library function wrappers. - * - * This file provides wrappers for all the standard C library functions - * like malloc(), free(), printf(), getenv(), etc. - */ - - -#ifndef IMPORTS_H -#define IMPORTS_H - - -#include "compiler.h" -#include "glheader.h" - - -#ifdef __cplusplus -extern "C" { -#endif - - -/**********************************************************************/ -/** Memory macros */ -/*@{*/ - -/** Allocate \p BYTES bytes */ -#define MALLOC(BYTES) malloc(BYTES) -/** Allocate and zero \p BYTES bytes */ -#define CALLOC(BYTES) calloc(1, BYTES) -/** Allocate a structure of type \p T */ -#define MALLOC_STRUCT(T) (struct T *) malloc(sizeof(struct T)) -/** Allocate and zero a structure of type \p T */ -#define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T)) -/** Free memory */ -#define FREE(PTR) free(PTR) - -/*@}*/ - - -/* - * For GL_ARB_vertex_buffer_object we need to treat vertex array pointers - * as offsets into buffer stores. Since the vertex array pointer and - * buffer store pointer are both pointers and we need to add them, we use - * this macro. - * Both pointers/offsets are expressed in bytes. - */ -#define ADD_POINTERS(A, B) ( (GLubyte *) (A) + (uintptr_t) (B) ) - - -/** - * Sometimes we treat GLfloats as GLints. On x86 systems, moving a float - * as a int (thereby using integer registers instead of FP registers) is - * a performance win. Typically, this can be done with ordinary casts. - * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0) - * these casts generate warnings. - * The following union typedef is used to solve that. - */ -typedef union { GLfloat f; GLint i; } fi_type; - - - -/********************************************************************** - * Math macros - */ - -#define MAX_GLUSHORT 0xffff -#define MAX_GLUINT 0xffffffff - -/* Degrees to radians conversion: */ -#define DEG2RAD (M_PI/180.0) - - -/*** - *** SQRTF: single-precision square root - ***/ -#if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */ -# define SQRTF(X) _mesa_sqrtf(X) -#else -# define SQRTF(X) (float) sqrt((float) (X)) -#endif - - -/*** - *** INV_SQRTF: single-precision inverse square root - ***/ -#if 0 -#define INV_SQRTF(X) _mesa_inv_sqrt(X) -#else -#define INV_SQRTF(X) (1.0F / SQRTF(X)) /* this is faster on a P4 */ -#endif - - -/** - * \name Work-arounds for platforms that lack C99 math functions - */ -/*@{*/ -#if (!defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 600)) && !defined(_ISOC99_SOURCE) \ - && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \ - && (!defined(_MSC_VER) || (_MSC_VER < 1400)) -#define acosf(f) ((float) acos(f)) -#define asinf(f) ((float) asin(f)) -#define atan2f(x,y) ((float) atan2(x,y)) -#define atanf(f) ((float) atan(f)) -#define cielf(f) ((float) ciel(f)) -#define cosf(f) ((float) cos(f)) -#define coshf(f) ((float) cosh(f)) -#define expf(f) ((float) exp(f)) -#define exp2f(f) ((float) exp2(f)) -#define floorf(f) ((float) floor(f)) -#define logf(f) ((float) log(f)) -#define log2f(f) ((float) log2(f)) -#define powf(x,y) ((float) pow(x,y)) -#define sinf(f) ((float) sin(f)) -#define sinhf(f) ((float) sinh(f)) -#define sqrtf(f) ((float) sqrt(f)) -#define tanf(f) ((float) tan(f)) -#define tanhf(f) ((float) tanh(f)) -#define acoshf(f) ((float) acosh(f)) -#define asinhf(f) ((float) asinh(f)) -#define atanhf(f) ((float) atanh(f)) -#endif - -#if defined(_MSC_VER) -static INLINE float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); } -static INLINE float exp2f(float x) { return powf(2.0f, x); } -static INLINE float log2f(float x) { return logf(x) * 1.442695041f; } -static INLINE float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); } -static INLINE float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); } -static INLINE float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; } -static INLINE int isblank(int ch) { return ch == ' ' || ch == '\t'; } -#define strtoll(p, e, b) _strtoi64(p, e, b) -#endif -/*@}*/ - -/*** - *** LOG2: Log base 2 of float - ***/ -#ifdef USE_IEEE -#if 0 -/* This is pretty fast, but not accurate enough (only 2 fractional bits). - * Based on code from http://www.stereopsis.com/log2.html - */ -static INLINE GLfloat LOG2(GLfloat x) -{ - const GLfloat y = x * x * x * x; - const GLuint ix = *((GLuint *) &y); - const GLuint exp = (ix >> 23) & 0xFF; - const GLint log2 = ((GLint) exp) - 127; - return (GLfloat) log2 * (1.0 / 4.0); /* 4, because of x^4 above */ -} -#endif -/* Pretty fast, and accurate. - * Based on code from http://www.flipcode.com/totd/ - */ -static INLINE GLfloat LOG2(GLfloat val) -{ - fi_type num; - GLint log_2; - num.f = val; - log_2 = ((num.i >> 23) & 255) - 128; - num.i &= ~(255 << 23); - num.i += 127 << 23; - num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3; - return num.f + log_2; -} -#else -/* - * NOTE: log_base_2(x) = log(x) / log(2) - * NOTE: 1.442695 = 1/log(2). - */ -#define LOG2(x) ((GLfloat) (log(x) * 1.442695F)) -#endif - - -/*** - *** IS_INF_OR_NAN: test if float is infinite or NaN - ***/ -#ifdef USE_IEEE -static INLINE int IS_INF_OR_NAN( float x ) -{ - fi_type tmp; - tmp.f = x; - return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31); -} -#elif defined(isfinite) -#define IS_INF_OR_NAN(x) (!isfinite(x)) -#elif defined(finite) -#define IS_INF_OR_NAN(x) (!finite(x)) -#elif defined(__VMS) -#define IS_INF_OR_NAN(x) (!finite(x)) -#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L -#define IS_INF_OR_NAN(x) (!isfinite(x)) -#else -#define IS_INF_OR_NAN(x) (!finite(x)) -#endif - - -/*** - *** IS_NEGATIVE: test if float is negative - ***/ -#if defined(USE_IEEE) -static INLINE int GET_FLOAT_BITS( float x ) -{ - fi_type fi; - fi.f = x; - return fi.i; -} -#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0) -#else -#define IS_NEGATIVE(x) (x < 0.0F) -#endif - - -/*** - *** DIFFERENT_SIGNS: test if two floats have opposite signs - ***/ -#if defined(USE_IEEE) -#define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31)) -#else -/* Could just use (x*y<0) except for the flatshading requirements. - * Maybe there's a better way? - */ -#define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F) -#endif - - -/*** - *** CEILF: ceiling of float - *** FLOORF: floor of float - *** FABSF: absolute value of float - *** LOGF: the natural logarithm (base e) of the value - *** EXPF: raise e to the value - *** LDEXPF: multiply value by an integral power of two - *** FREXPF: extract mantissa and exponent from value - ***/ -#if defined(__gnu_linux__) -/* C99 functions */ -#define CEILF(x) ceilf(x) -#define FLOORF(x) floorf(x) -#define FABSF(x) fabsf(x) -#define LOGF(x) logf(x) -#define EXPF(x) expf(x) -#define LDEXPF(x,y) ldexpf(x,y) -#define FREXPF(x,y) frexpf(x,y) -#else -#define CEILF(x) ((GLfloat) ceil(x)) -#define FLOORF(x) ((GLfloat) floor(x)) -#define FABSF(x) ((GLfloat) fabs(x)) -#define LOGF(x) ((GLfloat) log(x)) -#define EXPF(x) ((GLfloat) exp(x)) -#define LDEXPF(x,y) ((GLfloat) ldexp(x,y)) -#define FREXPF(x,y) ((GLfloat) frexp(x,y)) -#endif - - -/*** - *** IROUND: return (as an integer) float rounded to nearest integer - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -static INLINE int iround(float f) -{ - int r; - __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st"); - return r; -} -#define IROUND(x) iround(x) -#elif defined(USE_X86_ASM) && defined(_MSC_VER) -static INLINE int iround(float f) -{ - int r; - _asm { - fld f - fistp r - } - return r; -} -#define IROUND(x) iround(x) -#elif defined(__WATCOMC__) && defined(__386__) -long iround(float f); -#pragma aux iround = \ - "push eax" \ - "fistp dword ptr [esp]" \ - "pop eax" \ - parm [8087] \ - value [eax] \ - modify exact [eax]; -#define IROUND(x) iround(x) -#else -#define IROUND(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F))) -#endif - -#define IROUND64(f) ((GLint64) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F))) - -/*** - *** IROUND_POS: return (as an integer) positive float rounded to nearest int - ***/ -#ifdef DEBUG -#define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f)) -#else -#define IROUND_POS(f) (IROUND(f)) -#endif - - -/*** - *** IFLOOR: return (as an integer) floor of float - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -/* - * IEEE floor for computers that round to nearest or even. - * 'f' must be between -4194304 and 4194303. - * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1", - * but uses some IEEE specific tricks for better speed. - * Contributed by Josh Vanderhoof - */ -static INLINE int ifloor(float f) -{ - int ai, bi; - double af, bf; - af = (3 << 22) + 0.5 + (double)f; - bf = (3 << 22) + 0.5 - (double)f; - /* GCC generates an extra fstp/fld without this. */ - __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st"); - __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st"); - return (ai - bi) >> 1; -} -#define IFLOOR(x) ifloor(x) -#elif defined(USE_IEEE) -static INLINE int ifloor(float f) -{ - int ai, bi; - double af, bf; - fi_type u; - - af = (3 << 22) + 0.5 + (double)f; - bf = (3 << 22) + 0.5 - (double)f; - u.f = (float) af; ai = u.i; - u.f = (float) bf; bi = u.i; - return (ai - bi) >> 1; -} -#define IFLOOR(x) ifloor(x) -#else -static INLINE int ifloor(float f) -{ - int i = IROUND(f); - return (i > f) ? i - 1 : i; -} -#define IFLOOR(x) ifloor(x) -#endif - - -/*** - *** ICEIL: return (as an integer) ceiling of float - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -/* - * IEEE ceil for computers that round to nearest or even. - * 'f' must be between -4194304 and 4194303. - * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1", - * but uses some IEEE specific tricks for better speed. - * Contributed by Josh Vanderhoof - */ -static INLINE int iceil(float f) -{ - int ai, bi; - double af, bf; - af = (3 << 22) + 0.5 + (double)f; - bf = (3 << 22) + 0.5 - (double)f; - /* GCC generates an extra fstp/fld without this. */ - __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st"); - __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st"); - return (ai - bi + 1) >> 1; -} -#define ICEIL(x) iceil(x) -#elif defined(USE_IEEE) -static INLINE int iceil(float f) -{ - int ai, bi; - double af, bf; - fi_type u; - af = (3 << 22) + 0.5 + (double)f; - bf = (3 << 22) + 0.5 - (double)f; - u.f = (float) af; ai = u.i; - u.f = (float) bf; bi = u.i; - return (ai - bi + 1) >> 1; -} -#define ICEIL(x) iceil(x) -#else -static INLINE int iceil(float f) -{ - int i = IROUND(f); - return (i < f) ? i + 1 : i; -} -#define ICEIL(x) iceil(x) -#endif - - -/** - * Is x a power of two? - */ -static INLINE int -_mesa_is_pow_two(int x) -{ - return !(x & (x - 1)); -} - -/** - * Round given integer to next higer power of two - * If X is zero result is undefined. - * - * Source for the fallback implementation is - * Sean Eron Anderson's webpage "Bit Twiddling Hacks" - * http://graphics.stanford.edu/~seander/bithacks.html - * - * When using builtin function have to do some work - * for case when passed values 1 to prevent hiting - * undefined result from __builtin_clz. Undefined - * results would be different depending on optimization - * level used for build. - */ -static INLINE int32_t -_mesa_next_pow_two_32(uint32_t x) -{ -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) - uint32_t y = (x != 1); - return (1 + y) << ((__builtin_clz(x - y) ^ 31) ); -#else - x--; - x |= x >> 1; - x |= x >> 2; - x |= x >> 4; - x |= x >> 8; - x |= x >> 16; - x++; - return x; -#endif -} - -static INLINE int64_t -_mesa_next_pow_two_64(uint64_t x) -{ -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) - uint64_t y = (x != 1); - if (sizeof(x) == sizeof(long)) - return (1 + y) << ((__builtin_clzl(x - y) ^ 63)); - else - return (1 + y) << ((__builtin_clzll(x - y) ^ 63)); -#else - x--; - x |= x >> 1; - x |= x >> 2; - x |= x >> 4; - x |= x >> 8; - x |= x >> 16; - x |= x >> 32; - x++; - return x; -#endif -} - - -/** - * Return 1 if this is a little endian machine, 0 if big endian. - */ -static INLINE GLboolean -_mesa_little_endian(void) -{ - const GLuint ui = 1; /* intentionally not static */ - return *((const GLubyte *) &ui); -} - - - -/********************************************************************** - * Functions - */ - -extern void * -_mesa_align_malloc( size_t bytes, unsigned long alignment ); - -extern void * -_mesa_align_calloc( size_t bytes, unsigned long alignment ); - -extern void -_mesa_align_free( void *ptr ); - -extern void * -_mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize, - unsigned long alignment); - -extern void * -_mesa_exec_malloc( GLuint size ); - -extern void -_mesa_exec_free( void *addr ); - -extern void * -_mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize ); - -extern void -_mesa_memset16( unsigned short *dst, unsigned short val, size_t n ); - -extern double -_mesa_sqrtd(double x); - -extern float -_mesa_sqrtf(float x); - -extern float -_mesa_inv_sqrtf(float x); - -extern void -_mesa_init_sqrt_table(void); - -#ifdef __GNUC__ - -#ifdef __MINGW32__ -#define ffs __builtin_ffs -#define ffsll __builtin_ffsll -#endif - -#define _mesa_ffs(i) ffs(i) -#define _mesa_ffsll(i) ffsll(i) - -#if ((_GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) -#define _mesa_bitcount(i) __builtin_popcount(i) -#else -extern unsigned int -_mesa_bitcount(unsigned int n); -#endif - -#else -extern int -_mesa_ffs(int32_t i); - -extern int -_mesa_ffsll(int64_t i); - -extern unsigned int -_mesa_bitcount(unsigned int n); -#endif - -extern GLhalfARB -_mesa_float_to_half(float f); - -extern float -_mesa_half_to_float(GLhalfARB h); - - -extern void * -_mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size, - int (*compar)(const void *, const void *) ); - -extern char * -_mesa_getenv( const char *var ); - -extern char * -_mesa_strdup( const char *s ); - -extern float -_mesa_strtof( const char *s, char **end ); - -extern unsigned int -_mesa_str_checksum(const char *str); - -extern int -_mesa_snprintf( char *str, size_t size, const char *fmt, ... ) PRINTFLIKE(3, 4); - -struct gl_context; - -extern void -_mesa_warning( struct gl_context *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3); - -extern void -_mesa_problem( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3); - -extern void -_mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4); - -extern void -_mesa_debug( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3); - - -#if defined(_MSC_VER) && !defined(snprintf) -#define snprintf _snprintf -#endif - - -#ifdef __cplusplus -} -#endif - - -#endif /* IMPORTS_H */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.5
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file imports.h
+ * Standard C library function wrappers.
+ *
+ * This file provides wrappers for all the standard C library functions
+ * like malloc(), free(), printf(), getenv(), etc.
+ */
+
+
+#ifndef IMPORTS_H
+#define IMPORTS_H
+
+
+#include "compiler.h"
+#include "glheader.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**********************************************************************/
+/** Memory macros */
+/*@{*/
+
+/** Allocate \p BYTES bytes */
+#define MALLOC(BYTES) malloc(BYTES)
+/** Allocate and zero \p BYTES bytes */
+#define CALLOC(BYTES) calloc(1, BYTES)
+/** Allocate a structure of type \p T */
+#define MALLOC_STRUCT(T) (struct T *) malloc(sizeof(struct T))
+/** Allocate and zero a structure of type \p T */
+#define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T))
+/** Free memory */
+#define FREE(PTR) free(PTR)
+
+/*@}*/
+
+
+/*
+ * For GL_ARB_vertex_buffer_object we need to treat vertex array pointers
+ * as offsets into buffer stores. Since the vertex array pointer and
+ * buffer store pointer are both pointers and we need to add them, we use
+ * this macro.
+ * Both pointers/offsets are expressed in bytes.
+ */
+#define ADD_POINTERS(A, B) ( (GLubyte *) (A) + (uintptr_t) (B) )
+
+
+/**
+ * Sometimes we treat GLfloats as GLints. On x86 systems, moving a float
+ * as a int (thereby using integer registers instead of FP registers) is
+ * a performance win. Typically, this can be done with ordinary casts.
+ * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
+ * these casts generate warnings.
+ * The following union typedef is used to solve that.
+ */
+typedef union { GLfloat f; GLint i; } fi_type;
+
+
+
+/**********************************************************************
+ * Math macros
+ */
+
+#define MAX_GLUSHORT 0xffff
+#define MAX_GLUINT 0xffffffff
+
+/* Degrees to radians conversion: */
+#define DEG2RAD (M_PI/180.0)
+
+
+/***
+ *** SQRTF: single-precision square root
+ ***/
+#if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */
+# define SQRTF(X) _mesa_sqrtf(X)
+#else
+# define SQRTF(X) (float) sqrt((float) (X))
+#endif
+
+
+/***
+ *** INV_SQRTF: single-precision inverse square root
+ ***/
+#if 0
+#define INV_SQRTF(X) _mesa_inv_sqrt(X)
+#else
+#define INV_SQRTF(X) (1.0F / SQRTF(X)) /* this is faster on a P4 */
+#endif
+
+
+/**
+ * \name Work-arounds for platforms that lack C99 math functions
+ */
+/*@{*/
+#if (!defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 600)) && !defined(_ISOC99_SOURCE) \
+ && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \
+ && (!defined(_MSC_VER) || (_MSC_VER < 1400))
+#define acosf(f) ((float) acos(f))
+#define asinf(f) ((float) asin(f))
+#define atan2f(x,y) ((float) atan2(x,y))
+#define atanf(f) ((float) atan(f))
+#define cielf(f) ((float) ciel(f))
+#define cosf(f) ((float) cos(f))
+#define coshf(f) ((float) cosh(f))
+#define expf(f) ((float) exp(f))
+#define exp2f(f) ((float) exp2(f))
+#define floorf(f) ((float) floor(f))
+#define logf(f) ((float) log(f))
+#define log2f(f) ((float) log2(f))
+#define powf(x,y) ((float) pow(x,y))
+#define sinf(f) ((float) sin(f))
+#define sinhf(f) ((float) sinh(f))
+#define sqrtf(f) ((float) sqrt(f))
+#define tanf(f) ((float) tan(f))
+#define tanhf(f) ((float) tanh(f))
+#define acoshf(f) ((float) acosh(f))
+#define asinhf(f) ((float) asinh(f))
+#define atanhf(f) ((float) atanh(f))
+#endif
+
+#if defined(_MSC_VER)
+static INLINE float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); }
+static INLINE float exp2f(float x) { return powf(2.0f, x); }
+static INLINE float log2f(float x) { return logf(x) * 1.442695041f; }
+static INLINE float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); }
+static INLINE float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); }
+static INLINE float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; }
+static INLINE int isblank(int ch) { return ch == ' ' || ch == '\t'; }
+#define strtoll(p, e, b) _strtoi64(p, e, b)
+#endif
+/*@}*/
+
+/***
+ *** LOG2: Log base 2 of float
+ ***/
+#ifdef USE_IEEE
+#if 0
+/* This is pretty fast, but not accurate enough (only 2 fractional bits).
+ * Based on code from http://www.stereopsis.com/log2.html
+ */
+static INLINE GLfloat LOG2(GLfloat x)
+{
+ const GLfloat y = x * x * x * x;
+ const GLuint ix = *((GLuint *) &y);
+ const GLuint exp = (ix >> 23) & 0xFF;
+ const GLint log2 = ((GLint) exp) - 127;
+ return (GLfloat) log2 * (1.0 / 4.0); /* 4, because of x^4 above */
+}
+#endif
+/* Pretty fast, and accurate.
+ * Based on code from http://www.flipcode.com/totd/
+ */
+static INLINE GLfloat LOG2(GLfloat val)
+{
+ fi_type num;
+ GLint log_2;
+ num.f = val;
+ log_2 = ((num.i >> 23) & 255) - 128;
+ num.i &= ~(255 << 23);
+ num.i += 127 << 23;
+ num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
+ return num.f + log_2;
+}
+#else
+/*
+ * NOTE: log_base_2(x) = log(x) / log(2)
+ * NOTE: 1.442695 = 1/log(2).
+ */
+#define LOG2(x) ((GLfloat) (log(x) * 1.442695F))
+#endif
+
+
+/***
+ *** IS_INF_OR_NAN: test if float is infinite or NaN
+ ***/
+#ifdef USE_IEEE
+static INLINE int IS_INF_OR_NAN( float x )
+{
+ fi_type tmp;
+ tmp.f = x;
+ return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31);
+}
+#elif defined(isfinite)
+#define IS_INF_OR_NAN(x) (!isfinite(x))
+#elif defined(finite)
+#define IS_INF_OR_NAN(x) (!finite(x))
+#elif defined(__VMS)
+#define IS_INF_OR_NAN(x) (!finite(x))
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#define IS_INF_OR_NAN(x) (!isfinite(x))
+#else
+#define IS_INF_OR_NAN(x) (!finite(x))
+#endif
+
+
+/***
+ *** IS_NEGATIVE: test if float is negative
+ ***/
+#if defined(USE_IEEE)
+static INLINE int GET_FLOAT_BITS( float x )
+{
+ fi_type fi;
+ fi.f = x;
+ return fi.i;
+}
+#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0)
+#else
+#define IS_NEGATIVE(x) (x < 0.0F)
+#endif
+
+
+/***
+ *** DIFFERENT_SIGNS: test if two floats have opposite signs
+ ***/
+#if defined(USE_IEEE)
+#define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31))
+#else
+/* Could just use (x*y<0) except for the flatshading requirements.
+ * Maybe there's a better way?
+ */
+#define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F)
+#endif
+
+
+/***
+ *** CEILF: ceiling of float
+ *** FLOORF: floor of float
+ *** FABSF: absolute value of float
+ *** LOGF: the natural logarithm (base e) of the value
+ *** EXPF: raise e to the value
+ *** LDEXPF: multiply value by an integral power of two
+ *** FREXPF: extract mantissa and exponent from value
+ ***/
+#if defined(__gnu_linux__)
+/* C99 functions */
+#define CEILF(x) ceilf(x)
+#define FLOORF(x) floorf(x)
+#define FABSF(x) fabsf(x)
+#define LOGF(x) logf(x)
+#define EXPF(x) expf(x)
+#define LDEXPF(x,y) ldexpf(x,y)
+#define FREXPF(x,y) frexpf(x,y)
+#else
+#define CEILF(x) ((GLfloat) ceil(x))
+#define FLOORF(x) ((GLfloat) floor(x))
+#define FABSF(x) ((GLfloat) fabs(x))
+#define LOGF(x) ((GLfloat) log(x))
+#define EXPF(x) ((GLfloat) exp(x))
+#define LDEXPF(x,y) ((GLfloat) ldexp(x,y))
+#define FREXPF(x,y) ((GLfloat) frexp(x,y))
+#endif
+
+
+/***
+ *** IROUND: return (as an integer) float rounded to nearest integer
+ ***/
+#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
+static INLINE int iround(float f)
+{
+ int r;
+ __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st");
+ return r;
+}
+#define IROUND(x) iround(x)
+#elif defined(USE_X86_ASM) && defined(_MSC_VER)
+static INLINE int iround(float f)
+{
+ int r;
+ _asm {
+ fld f
+ fistp r
+ }
+ return r;
+}
+#define IROUND(x) iround(x)
+#elif defined(__WATCOMC__) && defined(__386__)
+long iround(float f);
+#pragma aux iround = \
+ "push eax" \
+ "fistp dword ptr [esp]" \
+ "pop eax" \
+ parm [8087] \
+ value [eax] \
+ modify exact [eax];
+#define IROUND(x) iround(x)
+#else
+#define IROUND(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
+#endif
+
+#define IROUND64(f) ((GLint64) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
+
+/***
+ *** IROUND_POS: return (as an integer) positive float rounded to nearest int
+ ***/
+#ifdef DEBUG
+#define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f))
+#else
+#define IROUND_POS(f) (IROUND(f))
+#endif
+
+
+/***
+ *** IFLOOR: return (as an integer) floor of float
+ ***/
+#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
+/*
+ * IEEE floor for computers that round to nearest or even.
+ * 'f' must be between -4194304 and 4194303.
+ * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1",
+ * but uses some IEEE specific tricks for better speed.
+ * Contributed by Josh Vanderhoof
+ */
+static INLINE int ifloor(float f)
+{
+ int ai, bi;
+ double af, bf;
+ af = (3 << 22) + 0.5 + (double)f;
+ bf = (3 << 22) + 0.5 - (double)f;
+ /* GCC generates an extra fstp/fld without this. */
+ __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
+ __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
+ return (ai - bi) >> 1;
+}
+#define IFLOOR(x) ifloor(x)
+#elif defined(USE_IEEE)
+static INLINE int ifloor(float f)
+{
+ int ai, bi;
+ double af, bf;
+ fi_type u;
+
+ af = (3 << 22) + 0.5 + (double)f;
+ bf = (3 << 22) + 0.5 - (double)f;
+ u.f = (float) af; ai = u.i;
+ u.f = (float) bf; bi = u.i;
+ return (ai - bi) >> 1;
+}
+#define IFLOOR(x) ifloor(x)
+#else
+static INLINE int ifloor(float f)
+{
+ int i = IROUND(f);
+ return (i > f) ? i - 1 : i;
+}
+#define IFLOOR(x) ifloor(x)
+#endif
+
+
+/***
+ *** ICEIL: return (as an integer) ceiling of float
+ ***/
+#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
+/*
+ * IEEE ceil for computers that round to nearest or even.
+ * 'f' must be between -4194304 and 4194303.
+ * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1",
+ * but uses some IEEE specific tricks for better speed.
+ * Contributed by Josh Vanderhoof
+ */
+static INLINE int iceil(float f)
+{
+ int ai, bi;
+ double af, bf;
+ af = (3 << 22) + 0.5 + (double)f;
+ bf = (3 << 22) + 0.5 - (double)f;
+ /* GCC generates an extra fstp/fld without this. */
+ __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
+ __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
+ return (ai - bi + 1) >> 1;
+}
+#define ICEIL(x) iceil(x)
+#elif defined(USE_IEEE)
+static INLINE int iceil(float f)
+{
+ int ai, bi;
+ double af, bf;
+ fi_type u;
+ af = (3 << 22) + 0.5 + (double)f;
+ bf = (3 << 22) + 0.5 - (double)f;
+ u.f = (float) af; ai = u.i;
+ u.f = (float) bf; bi = u.i;
+ return (ai - bi + 1) >> 1;
+}
+#define ICEIL(x) iceil(x)
+#else
+static INLINE int iceil(float f)
+{
+ int i = IROUND(f);
+ return (i < f) ? i + 1 : i;
+}
+#define ICEIL(x) iceil(x)
+#endif
+
+
+/**
+ * Is x a power of two?
+ */
+static INLINE int
+_mesa_is_pow_two(int x)
+{
+ return !(x & (x - 1));
+}
+
+/**
+ * Round given integer to next higer power of two
+ * If X is zero result is undefined.
+ *
+ * Source for the fallback implementation is
+ * Sean Eron Anderson's webpage "Bit Twiddling Hacks"
+ * http://graphics.stanford.edu/~seander/bithacks.html
+ *
+ * When using builtin function have to do some work
+ * for case when passed values 1 to prevent hiting
+ * undefined result from __builtin_clz. Undefined
+ * results would be different depending on optimization
+ * level used for build.
+ */
+static INLINE int32_t
+_mesa_next_pow_two_32(uint32_t x)
+{
+#if defined(__GNUC__) && \
+ ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
+ uint32_t y = (x != 1);
+ return (1 + y) << ((__builtin_clz(x - y) ^ 31) );
+#else
+ x--;
+ x |= x >> 1;
+ x |= x >> 2;
+ x |= x >> 4;
+ x |= x >> 8;
+ x |= x >> 16;
+ x++;
+ return x;
+#endif
+}
+
+static INLINE int64_t
+_mesa_next_pow_two_64(uint64_t x)
+{
+#if defined(__GNUC__) && \
+ ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
+ uint64_t y = (x != 1);
+ if (sizeof(x) == sizeof(long))
+ return (1 + y) << ((__builtin_clzl(x - y) ^ 63));
+ else
+ return (1 + y) << ((__builtin_clzll(x - y) ^ 63));
+#else
+ x--;
+ x |= x >> 1;
+ x |= x >> 2;
+ x |= x >> 4;
+ x |= x >> 8;
+ x |= x >> 16;
+ x |= x >> 32;
+ x++;
+ return x;
+#endif
+}
+
+
+/**
+ * Return 1 if this is a little endian machine, 0 if big endian.
+ */
+static INLINE GLboolean
+_mesa_little_endian(void)
+{
+ const GLuint ui = 1; /* intentionally not static */
+ return *((const GLubyte *) &ui);
+}
+
+
+
+/**********************************************************************
+ * Functions
+ */
+
+extern void *
+_mesa_align_malloc( size_t bytes, unsigned long alignment );
+
+extern void *
+_mesa_align_calloc( size_t bytes, unsigned long alignment );
+
+extern void
+_mesa_align_free( void *ptr );
+
+extern void *
+_mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
+ unsigned long alignment);
+
+extern void *
+_mesa_exec_malloc( GLuint size );
+
+extern void
+_mesa_exec_free( void *addr );
+
+extern void *
+_mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );
+
+extern void
+_mesa_memset16( unsigned short *dst, unsigned short val, size_t n );
+
+extern double
+_mesa_sqrtd(double x);
+
+extern float
+_mesa_sqrtf(float x);
+
+extern float
+_mesa_inv_sqrtf(float x);
+
+extern void
+_mesa_init_sqrt_table(void);
+
+#ifdef __GNUC__
+
+#ifdef __MINGW32__
+#define ffs __builtin_ffs
+#define ffsll __builtin_ffsll
+#endif
+
+#define _mesa_ffs(i) ffs(i)
+#define _mesa_ffsll(i) ffsll(i)
+
+#if ((_GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
+#define _mesa_bitcount(i) __builtin_popcount(i)
+#else
+extern unsigned int
+_mesa_bitcount(unsigned int n);
+#endif
+
+#else
+extern int
+_mesa_ffs(int32_t i);
+
+extern int
+_mesa_ffsll(int64_t i);
+
+extern unsigned int
+_mesa_bitcount(unsigned int n);
+#endif
+
+extern GLhalfARB
+_mesa_float_to_half(float f);
+
+extern float
+_mesa_half_to_float(GLhalfARB h);
+
+
+extern void *
+_mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
+ int (*compar)(const void *, const void *) );
+
+extern char *
+_mesa_getenv( const char *var );
+
+extern char *
+_mesa_strdup( const char *s );
+
+extern float
+_mesa_strtof( const char *s, char **end );
+
+extern unsigned int
+_mesa_str_checksum(const char *str);
+
+extern int
+_mesa_snprintf( char *str, size_t size, const char *fmt, ... ) PRINTFLIKE(3, 4);
+
+struct gl_context;
+
+extern void
+_mesa_warning( struct gl_context *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+
+extern void
+_mesa_problem( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+
+extern void
+_mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4);
+
+extern void
+_mesa_debug( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
+
+
+#if defined(_MSC_VER) && !defined(snprintf)
+#define snprintf _snprintf
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* IMPORTS_H */
diff --git a/mesalib/src/mesa/main/lines.c b/mesalib/src/mesa/main/lines.c index 79bf5679d..1df409f45 100644 --- a/mesalib/src/mesa/main/lines.c +++ b/mesalib/src/mesa/main/lines.c @@ -1,117 +1,117 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.3 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "context.h" -#include "lines.h" -#include "macros.h" -#include "mtypes.h" - - -/** - * Set the line width. - * - * \param width line width in pixels. - * - * \sa glLineWidth(). - */ -void GLAPIENTRY -_mesa_LineWidth( GLfloat width ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glLineWidth %f\n", width); - - if (width<=0.0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); - return; - } - - if (ctx->Line.Width == width) - return; - - FLUSH_VERTICES(ctx, _NEW_LINE); - ctx->Line.Width = width; - - if (ctx->Driver.LineWidth) - ctx->Driver.LineWidth(ctx, width); -} - - -/** - * Set the line stipple pattern. - * - * \param factor pattern scale factor. - * \param pattern bit pattern. - * - * \sa glLineStipple(). - * - * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On - * change flushes the vertices and notifies the driver via - * the dd_function_table::LineStipple callback. - */ -void GLAPIENTRY -_mesa_LineStipple( GLint factor, GLushort pattern ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern); - - factor = CLAMP( factor, 1, 256 ); - - if (ctx->Line.StippleFactor == factor && - ctx->Line.StipplePattern == pattern) - return; - - FLUSH_VERTICES(ctx, _NEW_LINE); - ctx->Line.StippleFactor = factor; - ctx->Line.StipplePattern = pattern; - - if (ctx->Driver.LineStipple) - ctx->Driver.LineStipple( ctx, factor, pattern ); -} - - -/** - * Initialize the context line state. - * - * \param ctx GL context. - * - * Initializes __struct gl_contextRec::Line and line related constants in - * __struct gl_contextRec::Const. - */ -void GLAPIENTRY -_mesa_init_line( struct gl_context * ctx ) -{ - ctx->Line.SmoothFlag = GL_FALSE; - ctx->Line.StippleFlag = GL_FALSE; - ctx->Line.Width = 1.0; - ctx->Line.StipplePattern = 0xffff; - ctx->Line.StippleFactor = 1; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.3
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "context.h"
+#include "lines.h"
+#include "macros.h"
+#include "mtypes.h"
+
+
+/**
+ * Set the line width.
+ *
+ * \param width line width in pixels.
+ *
+ * \sa glLineWidth().
+ */
+void GLAPIENTRY
+_mesa_LineWidth( GLfloat width )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glLineWidth %f\n", width);
+
+ if (width<=0.0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
+ return;
+ }
+
+ if (ctx->Line.Width == width)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_LINE);
+ ctx->Line.Width = width;
+
+ if (ctx->Driver.LineWidth)
+ ctx->Driver.LineWidth(ctx, width);
+}
+
+
+/**
+ * Set the line stipple pattern.
+ *
+ * \param factor pattern scale factor.
+ * \param pattern bit pattern.
+ *
+ * \sa glLineStipple().
+ *
+ * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On
+ * change flushes the vertices and notifies the driver via
+ * the dd_function_table::LineStipple callback.
+ */
+void GLAPIENTRY
+_mesa_LineStipple( GLint factor, GLushort pattern )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern);
+
+ factor = CLAMP( factor, 1, 256 );
+
+ if (ctx->Line.StippleFactor == factor &&
+ ctx->Line.StipplePattern == pattern)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_LINE);
+ ctx->Line.StippleFactor = factor;
+ ctx->Line.StipplePattern = pattern;
+
+ if (ctx->Driver.LineStipple)
+ ctx->Driver.LineStipple( ctx, factor, pattern );
+}
+
+
+/**
+ * Initialize the context line state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __struct gl_contextRec::Line and line related constants in
+ * __struct gl_contextRec::Const.
+ */
+void GLAPIENTRY
+_mesa_init_line( struct gl_context * ctx )
+{
+ ctx->Line.SmoothFlag = GL_FALSE;
+ ctx->Line.StippleFlag = GL_FALSE;
+ ctx->Line.Width = 1.0;
+ ctx->Line.StipplePattern = 0xffff;
+ ctx->Line.StippleFactor = 1;
+}
diff --git a/mesalib/src/mesa/main/mipmap.c b/mesalib/src/mesa/main/mipmap.c index e594160ad..b12399ee6 100644 --- a/mesalib/src/mesa/main/mipmap.c +++ b/mesalib/src/mesa/main/mipmap.c @@ -1,2027 +1,2027 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file mipmap.c mipmap generation and teximage resizing functions. - */ - -#include "imports.h" -#include "formats.h" -#include "mipmap.h" -#include "mtypes.h" -#include "teximage.h" -#include "texstore.h" -#include "image.h" - - - -static GLint -bytes_per_pixel(GLenum datatype, GLuint comps) -{ - GLint b = _mesa_sizeof_packed_type(datatype); - assert(b >= 0); - - if (_mesa_type_is_packed(datatype)) - return b; - else - return b * comps; -} - - -/** - * \name Support macros for do_row and do_row_3d - * - * The macro madness is here for two reasons. First, it compacts the code - * slightly. Second, it makes it much easier to adjust the specifics of the - * filter to tune the rounding characteristics. - */ -/*@{*/ -#define DECLARE_ROW_POINTERS(t, e) \ - const t(*rowA)[e] = (const t(*)[e]) srcRowA; \ - const t(*rowB)[e] = (const t(*)[e]) srcRowB; \ - const t(*rowC)[e] = (const t(*)[e]) srcRowC; \ - const t(*rowD)[e] = (const t(*)[e]) srcRowD; \ - t(*dst)[e] = (t(*)[e]) dstRow - -#define DECLARE_ROW_POINTERS0(t) \ - const t *rowA = (const t *) srcRowA; \ - const t *rowB = (const t *) srcRowB; \ - const t *rowC = (const t *) srcRowC; \ - const t *rowD = (const t *) srcRowD; \ - t *dst = (t *) dstRow - -#define FILTER_SUM_3D(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \ - ((unsigned) Aj + (unsigned) Ak \ - + (unsigned) Bj + (unsigned) Bk \ - + (unsigned) Cj + (unsigned) Ck \ - + (unsigned) Dj + (unsigned) Dk \ - + 4) >> 3 - -#define FILTER_3D(e) \ - do { \ - dst[i][e] = FILTER_SUM_3D(rowA[j][e], rowA[k][e], \ - rowB[j][e], rowB[k][e], \ - rowC[j][e], rowC[k][e], \ - rowD[j][e], rowD[k][e]); \ - } while(0) - -#define FILTER_SUM_3D_SIGNED(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \ - (Aj + Ak \ - + Bj + Bk \ - + Cj + Ck \ - + Dj + Dk \ - + 4) / 8 - -#define FILTER_3D_SIGNED(e) \ - do { \ - dst[i][e] = FILTER_SUM_3D_SIGNED(rowA[j][e], rowA[k][e], \ - rowB[j][e], rowB[k][e], \ - rowC[j][e], rowC[k][e], \ - rowD[j][e], rowD[k][e]); \ - } while(0) - -#define FILTER_F_3D(e) \ - do { \ - dst[i][e] = (rowA[j][e] + rowA[k][e] \ - + rowB[j][e] + rowB[k][e] \ - + rowC[j][e] + rowC[k][e] \ - + rowD[j][e] + rowD[k][e]) * 0.125F; \ - } while(0) - -#define FILTER_HF_3D(e) \ - do { \ - const GLfloat aj = _mesa_half_to_float(rowA[j][e]); \ - const GLfloat ak = _mesa_half_to_float(rowA[k][e]); \ - const GLfloat bj = _mesa_half_to_float(rowB[j][e]); \ - const GLfloat bk = _mesa_half_to_float(rowB[k][e]); \ - const GLfloat cj = _mesa_half_to_float(rowC[j][e]); \ - const GLfloat ck = _mesa_half_to_float(rowC[k][e]); \ - const GLfloat dj = _mesa_half_to_float(rowD[j][e]); \ - const GLfloat dk = _mesa_half_to_float(rowD[k][e]); \ - dst[i][e] = _mesa_float_to_half((aj + ak + bj + bk + cj + ck + dj + dk) \ - * 0.125F); \ - } while(0) -/*@}*/ - - -/** - * Average together two rows of a source image to produce a single new - * row in the dest image. It's legal for the two source rows to point - * to the same data. The source width must be equal to either the - * dest width or two times the dest width. - * \param datatype GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_FLOAT, etc. - * \param comps number of components per pixel (1..4) - */ -static void -do_row(GLenum datatype, GLuint comps, GLint srcWidth, - const GLvoid *srcRowA, const GLvoid *srcRowB, - GLint dstWidth, GLvoid *dstRow) -{ - const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; - const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; - - ASSERT(comps >= 1); - ASSERT(comps <= 4); - - /* This assertion is no longer valid with non-power-of-2 textures - assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth); - */ - - if (datatype == GL_UNSIGNED_BYTE && comps == 4) { - GLuint i, j, k; - const GLubyte(*rowA)[4] = (const GLubyte(*)[4]) srcRowA; - const GLubyte(*rowB)[4] = (const GLubyte(*)[4]) srcRowB; - GLubyte(*dst)[4] = (GLubyte(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; - } - } - else if (datatype == GL_UNSIGNED_BYTE && comps == 3) { - GLuint i, j, k; - const GLubyte(*rowA)[3] = (const GLubyte(*)[3]) srcRowA; - const GLubyte(*rowB)[3] = (const GLubyte(*)[3]) srcRowB; - GLubyte(*dst)[3] = (GLubyte(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - } - } - else if (datatype == GL_UNSIGNED_BYTE && comps == 2) { - GLuint i, j, k; - const GLubyte(*rowA)[2] = (const GLubyte(*)[2]) srcRowA; - const GLubyte(*rowB)[2] = (const GLubyte(*)[2]) srcRowB; - GLubyte(*dst)[2] = (GLubyte(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) >> 2; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) >> 2; - } - } - else if (datatype == GL_UNSIGNED_BYTE && comps == 1) { - GLuint i, j, k; - const GLubyte *rowA = (const GLubyte *) srcRowA; - const GLubyte *rowB = (const GLubyte *) srcRowB; - GLubyte *dst = (GLubyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2; - } - } - - else if (datatype == GL_BYTE && comps == 4) { - GLuint i, j, k; - const GLbyte(*rowA)[4] = (const GLbyte(*)[4]) srcRowA; - const GLbyte(*rowB)[4] = (const GLbyte(*)[4]) srcRowB; - GLbyte(*dst)[4] = (GLbyte(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; - } - } - else if (datatype == GL_BYTE && comps == 3) { - GLuint i, j, k; - const GLbyte(*rowA)[3] = (const GLbyte(*)[3]) srcRowA; - const GLbyte(*rowB)[3] = (const GLbyte(*)[3]) srcRowB; - GLbyte(*dst)[3] = (GLbyte(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - } - } - else if (datatype == GL_BYTE && comps == 2) { - GLuint i, j, k; - const GLbyte(*rowA)[2] = (const GLbyte(*)[2]) srcRowA; - const GLbyte(*rowB)[2] = (const GLbyte(*)[2]) srcRowB; - GLbyte(*dst)[2] = (GLbyte(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - } - } - else if (datatype == GL_BYTE && comps == 1) { - GLuint i, j, k; - const GLbyte *rowA = (const GLbyte *) srcRowA; - const GLbyte *rowB = (const GLbyte *) srcRowB; - GLbyte *dst = (GLbyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; - } - } - - else if (datatype == GL_UNSIGNED_SHORT && comps == 4) { - GLuint i, j, k; - const GLushort(*rowA)[4] = (const GLushort(*)[4]) srcRowA; - const GLushort(*rowB)[4] = (const GLushort(*)[4]) srcRowB; - GLushort(*dst)[4] = (GLushort(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; - } - } - else if (datatype == GL_UNSIGNED_SHORT && comps == 3) { - GLuint i, j, k; - const GLushort(*rowA)[3] = (const GLushort(*)[3]) srcRowA; - const GLushort(*rowB)[3] = (const GLushort(*)[3]) srcRowB; - GLushort(*dst)[3] = (GLushort(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - } - } - else if (datatype == GL_UNSIGNED_SHORT && comps == 2) { - GLuint i, j, k; - const GLushort(*rowA)[2] = (const GLushort(*)[2]) srcRowA; - const GLushort(*rowB)[2] = (const GLushort(*)[2]) srcRowB; - GLushort(*dst)[2] = (GLushort(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - } - } - else if (datatype == GL_UNSIGNED_SHORT && comps == 1) { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; - } - } - - else if (datatype == GL_SHORT && comps == 4) { - GLuint i, j, k; - const GLshort(*rowA)[4] = (const GLshort(*)[4]) srcRowA; - const GLshort(*rowB)[4] = (const GLshort(*)[4]) srcRowB; - GLshort(*dst)[4] = (GLshort(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; - } - } - else if (datatype == GL_SHORT && comps == 3) { - GLuint i, j, k; - const GLshort(*rowA)[3] = (const GLshort(*)[3]) srcRowA; - const GLshort(*rowB)[3] = (const GLshort(*)[3]) srcRowB; - GLshort(*dst)[3] = (GLshort(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; - } - } - else if (datatype == GL_SHORT && comps == 2) { - GLuint i, j, k; - const GLshort(*rowA)[2] = (const GLshort(*)[2]) srcRowA; - const GLshort(*rowB)[2] = (const GLshort(*)[2]) srcRowB; - GLshort(*dst)[2] = (GLshort(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; - dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; - } - } - else if (datatype == GL_SHORT && comps == 1) { - GLuint i, j, k; - const GLshort *rowA = (const GLshort *) srcRowA; - const GLshort *rowB = (const GLshort *) srcRowB; - GLshort *dst = (GLshort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; - } - } - - else if (datatype == GL_FLOAT && comps == 4) { - GLuint i, j, k; - const GLfloat(*rowA)[4] = (const GLfloat(*)[4]) srcRowA; - const GLfloat(*rowB)[4] = (const GLfloat(*)[4]) srcRowB; - GLfloat(*dst)[4] = (GLfloat(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) * 0.25F; - dst[i][3] = (rowA[j][3] + rowA[k][3] + - rowB[j][3] + rowB[k][3]) * 0.25F; - } - } - else if (datatype == GL_FLOAT && comps == 3) { - GLuint i, j, k; - const GLfloat(*rowA)[3] = (const GLfloat(*)[3]) srcRowA; - const GLfloat(*rowB)[3] = (const GLfloat(*)[3]) srcRowB; - GLfloat(*dst)[3] = (GLfloat(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - dst[i][2] = (rowA[j][2] + rowA[k][2] + - rowB[j][2] + rowB[k][2]) * 0.25F; - } - } - else if (datatype == GL_FLOAT && comps == 2) { - GLuint i, j, k; - const GLfloat(*rowA)[2] = (const GLfloat(*)[2]) srcRowA; - const GLfloat(*rowB)[2] = (const GLfloat(*)[2]) srcRowB; - GLfloat(*dst)[2] = (GLfloat(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i][0] = (rowA[j][0] + rowA[k][0] + - rowB[j][0] + rowB[k][0]) * 0.25F; - dst[i][1] = (rowA[j][1] + rowA[k][1] + - rowB[j][1] + rowB[k][1]) * 0.25F; - } - } - else if (datatype == GL_FLOAT && comps == 1) { - GLuint i, j, k; - const GLfloat *rowA = (const GLfloat *) srcRowA; - const GLfloat *rowB = (const GLfloat *) srcRowB; - GLfloat *dst = (GLfloat *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F; - } - } - - else if (datatype == GL_HALF_FLOAT_ARB && comps == 4) { - GLuint i, j, k, comp; - const GLhalfARB(*rowA)[4] = (const GLhalfARB(*)[4]) srcRowA; - const GLhalfARB(*rowB)[4] = (const GLhalfARB(*)[4]) srcRowB; - GLhalfARB(*dst)[4] = (GLhalfARB(*)[4]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 4; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - else if (datatype == GL_HALF_FLOAT_ARB && comps == 3) { - GLuint i, j, k, comp; - const GLhalfARB(*rowA)[3] = (const GLhalfARB(*)[3]) srcRowA; - const GLhalfARB(*rowB)[3] = (const GLhalfARB(*)[3]) srcRowB; - GLhalfARB(*dst)[3] = (GLhalfARB(*)[3]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 3; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - else if (datatype == GL_HALF_FLOAT_ARB && comps == 2) { - GLuint i, j, k, comp; - const GLhalfARB(*rowA)[2] = (const GLhalfARB(*)[2]) srcRowA; - const GLhalfARB(*rowB)[2] = (const GLhalfARB(*)[2]) srcRowB; - GLhalfARB(*dst)[2] = (GLhalfARB(*)[2]) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - for (comp = 0; comp < 2; comp++) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j][comp]); - ak = _mesa_half_to_float(rowA[k][comp]); - bj = _mesa_half_to_float(rowB[j][comp]); - bk = _mesa_half_to_float(rowB[k][comp]); - dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - } - else if (datatype == GL_HALF_FLOAT_ARB && comps == 1) { - GLuint i, j, k; - const GLhalfARB *rowA = (const GLhalfARB *) srcRowA; - const GLhalfARB *rowB = (const GLhalfARB *) srcRowB; - GLhalfARB *dst = (GLhalfARB *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - GLfloat aj, ak, bj, bk; - aj = _mesa_half_to_float(rowA[j]); - ak = _mesa_half_to_float(rowA[k]); - bj = _mesa_half_to_float(rowB[j]); - bk = _mesa_half_to_float(rowB[k]); - dst[i] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); - } - } - - else if (datatype == GL_UNSIGNED_INT && comps == 1) { - GLuint i, j, k; - const GLuint *rowA = (const GLuint *) srcRowA; - const GLuint *rowB = (const GLuint *) srcRowB; - GLuint *dst = (GLuint *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - dst[i] = (GLfloat)(rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4); - } - } - - else if (datatype == GL_UNSIGNED_SHORT_5_6_5 && comps == 3) { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0x1f; - const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; - const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - dst[i] = (blue << 11) | (green << 5) | red; - } - } - else if (datatype == GL_UNSIGNED_SHORT_4_4_4_4 && comps == 4) { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0xf; - const GLint rowAr1 = rowA[k] & 0xf; - const GLint rowBr0 = rowB[j] & 0xf; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 4) & 0xf; - const GLint rowAg1 = (rowA[k] >> 4) & 0xf; - const GLint rowBg0 = (rowB[j] >> 4) & 0xf; - const GLint rowBg1 = (rowB[k] >> 4) & 0xf; - const GLint rowAb0 = (rowA[j] >> 8) & 0xf; - const GLint rowAb1 = (rowA[k] >> 8) & 0xf; - const GLint rowBb0 = (rowB[j] >> 8) & 0xf; - const GLint rowBb1 = (rowB[k] >> 8) & 0xf; - const GLint rowAa0 = (rowA[j] >> 12) & 0xf; - const GLint rowAa1 = (rowA[k] >> 12) & 0xf; - const GLint rowBa0 = (rowB[j] >> 12) & 0xf; - const GLint rowBa1 = (rowB[k] >> 12) & 0xf; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; - dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red; - } - } - else if (datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV && comps == 4) { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0x1f; - const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; - const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; - const GLint rowAa0 = (rowA[j] >> 15) & 0x1; - const GLint rowAa1 = (rowA[k] >> 15) & 0x1; - const GLint rowBa0 = (rowB[j] >> 15) & 0x1; - const GLint rowBa1 = (rowB[k] >> 15) & 0x1; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; - dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red; - } - } - else if (datatype == GL_UNSIGNED_SHORT_5_5_5_1 && comps == 4) { - GLuint i, j, k; - const GLushort *rowA = (const GLushort *) srcRowA; - const GLushort *rowB = (const GLushort *) srcRowB; - GLushort *dst = (GLushort *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = (rowA[j] >> 11) & 0x1f; - const GLint rowAr1 = (rowA[k] >> 11) & 0x1f; - const GLint rowBr0 = (rowB[j] >> 11) & 0x1f; - const GLint rowBr1 = (rowB[k] >> 11) & 0x1f; - const GLint rowAg0 = (rowA[j] >> 6) & 0x1f; - const GLint rowAg1 = (rowA[k] >> 6) & 0x1f; - const GLint rowBg0 = (rowB[j] >> 6) & 0x1f; - const GLint rowBg1 = (rowB[k] >> 6) & 0x1f; - const GLint rowAb0 = (rowA[j] >> 1) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 1) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 1) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 1) & 0x1f; - const GLint rowAa0 = (rowA[j] & 0x1); - const GLint rowAa1 = (rowA[k] & 0x1); - const GLint rowBa0 = (rowB[j] & 0x1); - const GLint rowBa1 = (rowB[k] & 0x1); - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; - dst[i] = (red << 11) | (green << 6) | (blue << 1) | alpha; - } - } - - else if (datatype == GL_UNSIGNED_BYTE_3_3_2 && comps == 3) { - GLuint i, j, k; - const GLubyte *rowA = (const GLubyte *) srcRowA; - const GLubyte *rowB = (const GLubyte *) srcRowB; - GLubyte *dst = (GLubyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x3; - const GLint rowAr1 = rowA[k] & 0x3; - const GLint rowBr0 = rowB[j] & 0x3; - const GLint rowBr1 = rowB[k] & 0x3; - const GLint rowAg0 = (rowA[j] >> 2) & 0x7; - const GLint rowAg1 = (rowA[k] >> 2) & 0x7; - const GLint rowBg0 = (rowB[j] >> 2) & 0x7; - const GLint rowBg1 = (rowB[k] >> 2) & 0x7; - const GLint rowAb0 = (rowA[j] >> 5) & 0x7; - const GLint rowAb1 = (rowA[k] >> 5) & 0x7; - const GLint rowBb0 = (rowB[j] >> 5) & 0x7; - const GLint rowBb1 = (rowB[k] >> 5) & 0x7; - const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; - dst[i] = (blue << 5) | (green << 2) | red; - } - } - - else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) { - GLuint i, j, k; - const GLubyte *rowA = (const GLubyte *) srcRowA; - const GLubyte *rowB = (const GLubyte *) srcRowB; - GLubyte *dst = (GLubyte *) dstRow; - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0xf; - const GLint rowAr1 = rowA[k] & 0xf; - const GLint rowBr0 = rowB[j] & 0xf; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 4) & 0xf; - const GLint rowAg1 = (rowA[k] >> 4) & 0xf; - const GLint rowBg0 = (rowB[j] >> 4) & 0xf; - const GLint rowBg1 = (rowB[k] >> 4) & 0xf; - const GLint r = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; - const GLint g = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; - dst[i] = (g << 4) | r; - } - } - - else { - _mesa_problem(NULL, "bad format in do_row()"); - } -} - - -/** - * Average together four rows of a source image to produce a single new - * row in the dest image. It's legal for the two source rows to point - * to the same data. The source width must be equal to either the - * dest width or two times the dest width. - * - * \param datatype GL pixel type \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, - * \c GL_FLOAT, etc. - * \param comps number of components per pixel (1..4) - * \param srcWidth Width of a row in the source data - * \param srcRowA Pointer to one of the rows of source data - * \param srcRowB Pointer to one of the rows of source data - * \param srcRowC Pointer to one of the rows of source data - * \param srcRowD Pointer to one of the rows of source data - * \param dstWidth Width of a row in the destination data - * \param srcRowA Pointer to the row of destination data - */ -static void -do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth, - const GLvoid *srcRowA, const GLvoid *srcRowB, - const GLvoid *srcRowC, const GLvoid *srcRowD, - GLint dstWidth, GLvoid *dstRow) -{ - const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; - const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; - GLuint i, j, k; - - ASSERT(comps >= 1); - ASSERT(comps <= 4); - - if ((datatype == GL_UNSIGNED_BYTE) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLubyte, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - FILTER_3D(3); - } - } - else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLubyte, 3); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - } - } - else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLubyte, 2); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - } - } - else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLubyte, 1); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - } - } - else if ((datatype == GL_BYTE) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLbyte, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D_SIGNED(0); - FILTER_3D_SIGNED(1); - FILTER_3D_SIGNED(2); - FILTER_3D_SIGNED(3); - } - } - else if ((datatype == GL_BYTE) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLbyte, 3); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D_SIGNED(0); - FILTER_3D_SIGNED(1); - FILTER_3D_SIGNED(2); - } - } - else if ((datatype == GL_BYTE) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLbyte, 2); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D_SIGNED(0); - FILTER_3D_SIGNED(1); - } - } - else if ((datatype == GL_BYTE) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLbyte, 1); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D_SIGNED(0); - } - } - else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLushort, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - FILTER_3D(3); - } - } - else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLushort, 3); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - } - } - else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLushort, 2); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - } - } - else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLushort, 1); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - } - } - else if ((datatype == GL_SHORT) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLshort, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - FILTER_3D(3); - } - } - else if ((datatype == GL_SHORT) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLshort, 3); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - FILTER_3D(2); - } - } - else if ((datatype == GL_SHORT) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLshort, 2); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - FILTER_3D(1); - } - } - else if ((datatype == GL_SHORT) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLshort, 1); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_3D(0); - } - } - else if ((datatype == GL_FLOAT) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLfloat, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_F_3D(0); - FILTER_F_3D(1); - FILTER_F_3D(2); - FILTER_F_3D(3); - } - } - else if ((datatype == GL_FLOAT) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLfloat, 3); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_F_3D(0); - FILTER_F_3D(1); - FILTER_F_3D(2); - } - } - else if ((datatype == GL_FLOAT) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLfloat, 2); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_F_3D(0); - FILTER_F_3D(1); - } - } - else if ((datatype == GL_FLOAT) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLfloat, 1); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_F_3D(0); - } - } - else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 4)) { - DECLARE_ROW_POINTERS(GLhalfARB, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_HF_3D(0); - FILTER_HF_3D(1); - FILTER_HF_3D(2); - FILTER_HF_3D(3); - } - } - else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 3)) { - DECLARE_ROW_POINTERS(GLhalfARB, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_HF_3D(0); - FILTER_HF_3D(1); - FILTER_HF_3D(2); - } - } - else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 2)) { - DECLARE_ROW_POINTERS(GLhalfARB, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_HF_3D(0); - FILTER_HF_3D(1); - } - } - else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 1)) { - DECLARE_ROW_POINTERS(GLhalfARB, 4); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - FILTER_HF_3D(0); - } - } - else if ((datatype == GL_UNSIGNED_INT) && (comps == 1)) { - const GLuint *rowA = (const GLuint *) srcRowA; - const GLuint *rowB = (const GLuint *) srcRowB; - const GLuint *rowC = (const GLuint *) srcRowC; - const GLuint *rowD = (const GLuint *) srcRowD; - GLfloat *dst = (GLfloat *) dstRow; - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const uint64_t tmp = (((uint64_t) rowA[j] + (uint64_t) rowA[k]) - + ((uint64_t) rowB[j] + (uint64_t) rowB[k]) - + ((uint64_t) rowC[j] + (uint64_t) rowC[k]) - + ((uint64_t) rowD[j] + (uint64_t) rowD[k])); - dst[i] = (GLfloat)((double) tmp * 0.125); - } - } - else if ((datatype == GL_UNSIGNED_SHORT_5_6_5) && (comps == 3)) { - DECLARE_ROW_POINTERS0(GLushort); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0x1f; - const GLint rowCr0 = rowC[j] & 0x1f; - const GLint rowCr1 = rowC[k] & 0x1f; - const GLint rowDr0 = rowD[j] & 0x1f; - const GLint rowDr1 = rowD[k] & 0x1f; - const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; - const GLint rowCg0 = (rowC[j] >> 5) & 0x3f; - const GLint rowCg1 = (rowC[k] >> 5) & 0x3f; - const GLint rowDg0 = (rowD[j] >> 5) & 0x3f; - const GLint rowDg1 = (rowD[k] >> 5) & 0x3f; - const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; - const GLint rowCb0 = (rowC[j] >> 11) & 0x1f; - const GLint rowCb1 = (rowC[k] >> 11) & 0x1f; - const GLint rowDb0 = (rowD[j] >> 11) & 0x1f; - const GLint rowDb1 = (rowD[k] >> 11) & 0x1f; - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, - rowCb0, rowCb1, rowDb0, rowDb1); - dst[i] = (b << 11) | (g << 5) | r; - } - } - else if ((datatype == GL_UNSIGNED_SHORT_4_4_4_4) && (comps == 4)) { - DECLARE_ROW_POINTERS0(GLushort); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0xf; - const GLint rowAr1 = rowA[k] & 0xf; - const GLint rowBr0 = rowB[j] & 0xf; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowCr0 = rowC[j] & 0xf; - const GLint rowCr1 = rowC[k] & 0xf; - const GLint rowDr0 = rowD[j] & 0xf; - const GLint rowDr1 = rowD[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 4) & 0xf; - const GLint rowAg1 = (rowA[k] >> 4) & 0xf; - const GLint rowBg0 = (rowB[j] >> 4) & 0xf; - const GLint rowBg1 = (rowB[k] >> 4) & 0xf; - const GLint rowCg0 = (rowC[j] >> 4) & 0xf; - const GLint rowCg1 = (rowC[k] >> 4) & 0xf; - const GLint rowDg0 = (rowD[j] >> 4) & 0xf; - const GLint rowDg1 = (rowD[k] >> 4) & 0xf; - const GLint rowAb0 = (rowA[j] >> 8) & 0xf; - const GLint rowAb1 = (rowA[k] >> 8) & 0xf; - const GLint rowBb0 = (rowB[j] >> 8) & 0xf; - const GLint rowBb1 = (rowB[k] >> 8) & 0xf; - const GLint rowCb0 = (rowC[j] >> 8) & 0xf; - const GLint rowCb1 = (rowC[k] >> 8) & 0xf; - const GLint rowDb0 = (rowD[j] >> 8) & 0xf; - const GLint rowDb1 = (rowD[k] >> 8) & 0xf; - const GLint rowAa0 = (rowA[j] >> 12) & 0xf; - const GLint rowAa1 = (rowA[k] >> 12) & 0xf; - const GLint rowBa0 = (rowB[j] >> 12) & 0xf; - const GLint rowBa1 = (rowB[k] >> 12) & 0xf; - const GLint rowCa0 = (rowC[j] >> 12) & 0xf; - const GLint rowCa1 = (rowC[k] >> 12) & 0xf; - const GLint rowDa0 = (rowD[j] >> 12) & 0xf; - const GLint rowDa1 = (rowD[k] >> 12) & 0xf; - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, - rowCb0, rowCb1, rowDb0, rowDb1); - const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, - rowCa0, rowCa1, rowDa0, rowDa1); - - dst[i] = (a << 12) | (b << 8) | (g << 4) | r; - } - } - else if ((datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV) && (comps == 4)) { - DECLARE_ROW_POINTERS0(GLushort); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x1f; - const GLint rowAr1 = rowA[k] & 0x1f; - const GLint rowBr0 = rowB[j] & 0x1f; - const GLint rowBr1 = rowB[k] & 0x1f; - const GLint rowCr0 = rowC[j] & 0x1f; - const GLint rowCr1 = rowC[k] & 0x1f; - const GLint rowDr0 = rowD[j] & 0x1f; - const GLint rowDr1 = rowD[k] & 0x1f; - const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; - const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; - const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; - const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; - const GLint rowCg0 = (rowC[j] >> 5) & 0x1f; - const GLint rowCg1 = (rowC[k] >> 5) & 0x1f; - const GLint rowDg0 = (rowD[j] >> 5) & 0x1f; - const GLint rowDg1 = (rowD[k] >> 5) & 0x1f; - const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; - const GLint rowCb0 = (rowC[j] >> 10) & 0x1f; - const GLint rowCb1 = (rowC[k] >> 10) & 0x1f; - const GLint rowDb0 = (rowD[j] >> 10) & 0x1f; - const GLint rowDb1 = (rowD[k] >> 10) & 0x1f; - const GLint rowAa0 = (rowA[j] >> 15) & 0x1; - const GLint rowAa1 = (rowA[k] >> 15) & 0x1; - const GLint rowBa0 = (rowB[j] >> 15) & 0x1; - const GLint rowBa1 = (rowB[k] >> 15) & 0x1; - const GLint rowCa0 = (rowC[j] >> 15) & 0x1; - const GLint rowCa1 = (rowC[k] >> 15) & 0x1; - const GLint rowDa0 = (rowD[j] >> 15) & 0x1; - const GLint rowDa1 = (rowD[k] >> 15) & 0x1; - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, - rowCb0, rowCb1, rowDb0, rowDb1); - const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, - rowCa0, rowCa1, rowDa0, rowDa1); - - dst[i] = (a << 15) | (b << 10) | (g << 5) | r; - } - } - else if ((datatype == GL_UNSIGNED_SHORT_5_5_5_1) && (comps == 4)) { - DECLARE_ROW_POINTERS0(GLushort); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = (rowA[j] >> 11) & 0x1f; - const GLint rowAr1 = (rowA[k] >> 11) & 0x1f; - const GLint rowBr0 = (rowB[j] >> 11) & 0x1f; - const GLint rowBr1 = (rowB[k] >> 11) & 0x1f; - const GLint rowCr0 = (rowC[j] >> 11) & 0x1f; - const GLint rowCr1 = (rowC[k] >> 11) & 0x1f; - const GLint rowDr0 = (rowD[j] >> 11) & 0x1f; - const GLint rowDr1 = (rowD[k] >> 11) & 0x1f; - const GLint rowAg0 = (rowA[j] >> 6) & 0x1f; - const GLint rowAg1 = (rowA[k] >> 6) & 0x1f; - const GLint rowBg0 = (rowB[j] >> 6) & 0x1f; - const GLint rowBg1 = (rowB[k] >> 6) & 0x1f; - const GLint rowCg0 = (rowC[j] >> 6) & 0x1f; - const GLint rowCg1 = (rowC[k] >> 6) & 0x1f; - const GLint rowDg0 = (rowD[j] >> 6) & 0x1f; - const GLint rowDg1 = (rowD[k] >> 6) & 0x1f; - const GLint rowAb0 = (rowA[j] >> 1) & 0x1f; - const GLint rowAb1 = (rowA[k] >> 1) & 0x1f; - const GLint rowBb0 = (rowB[j] >> 1) & 0x1f; - const GLint rowBb1 = (rowB[k] >> 1) & 0x1f; - const GLint rowCb0 = (rowC[j] >> 1) & 0x1f; - const GLint rowCb1 = (rowC[k] >> 1) & 0x1f; - const GLint rowDb0 = (rowD[j] >> 1) & 0x1f; - const GLint rowDb1 = (rowD[k] >> 1) & 0x1f; - const GLint rowAa0 = (rowA[j] & 0x1); - const GLint rowAa1 = (rowA[k] & 0x1); - const GLint rowBa0 = (rowB[j] & 0x1); - const GLint rowBa1 = (rowB[k] & 0x1); - const GLint rowCa0 = (rowC[j] & 0x1); - const GLint rowCa1 = (rowC[k] & 0x1); - const GLint rowDa0 = (rowD[j] & 0x1); - const GLint rowDa1 = (rowD[k] & 0x1); - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, - rowCb0, rowCb1, rowDb0, rowDb1); - const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, - rowCa0, rowCa1, rowDa0, rowDa1); - - dst[i] = (r << 11) | (g << 6) | (b << 1) | a; - } - } - else if ((datatype == GL_UNSIGNED_BYTE_3_3_2) && (comps == 3)) { - DECLARE_ROW_POINTERS0(GLubyte); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x3; - const GLint rowAr1 = rowA[k] & 0x3; - const GLint rowBr0 = rowB[j] & 0x3; - const GLint rowBr1 = rowB[k] & 0x3; - const GLint rowCr0 = rowC[j] & 0x3; - const GLint rowCr1 = rowC[k] & 0x3; - const GLint rowDr0 = rowD[j] & 0x3; - const GLint rowDr1 = rowD[k] & 0x3; - const GLint rowAg0 = (rowA[j] >> 2) & 0x7; - const GLint rowAg1 = (rowA[k] >> 2) & 0x7; - const GLint rowBg0 = (rowB[j] >> 2) & 0x7; - const GLint rowBg1 = (rowB[k] >> 2) & 0x7; - const GLint rowCg0 = (rowC[j] >> 2) & 0x7; - const GLint rowCg1 = (rowC[k] >> 2) & 0x7; - const GLint rowDg0 = (rowD[j] >> 2) & 0x7; - const GLint rowDg1 = (rowD[k] >> 2) & 0x7; - const GLint rowAb0 = (rowA[j] >> 5) & 0x7; - const GLint rowAb1 = (rowA[k] >> 5) & 0x7; - const GLint rowBb0 = (rowB[j] >> 5) & 0x7; - const GLint rowBb1 = (rowB[k] >> 5) & 0x7; - const GLint rowCb0 = (rowC[j] >> 5) & 0x7; - const GLint rowCb1 = (rowC[k] >> 5) & 0x7; - const GLint rowDb0 = (rowD[j] >> 5) & 0x7; - const GLint rowDb1 = (rowD[k] >> 5) & 0x7; - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, - rowCb0, rowCb1, rowDb0, rowDb1); - dst[i] = (b << 5) | (g << 2) | r; - } - } - else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) { - DECLARE_ROW_POINTERS0(GLubyte); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0xf; - const GLint rowAr1 = rowA[k] & 0xf; - const GLint rowBr0 = rowB[j] & 0xf; - const GLint rowBr1 = rowB[k] & 0xf; - const GLint rowCr0 = rowC[j] & 0xf; - const GLint rowCr1 = rowC[k] & 0xf; - const GLint rowDr0 = rowD[j] & 0xf; - const GLint rowDr1 = rowD[k] & 0xf; - const GLint rowAg0 = (rowA[j] >> 4) & 0xf; - const GLint rowAg1 = (rowA[k] >> 4) & 0xf; - const GLint rowBg0 = (rowB[j] >> 4) & 0xf; - const GLint rowBg1 = (rowB[k] >> 4) & 0xf; - const GLint rowCg0 = (rowC[j] >> 4) & 0xf; - const GLint rowCg1 = (rowC[k] >> 4) & 0xf; - const GLint rowDg0 = (rowD[j] >> 4) & 0xf; - const GLint rowDg1 = (rowD[k] >> 4) & 0xf; - const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, - rowCr0, rowCr1, rowDr0, rowDr1); - const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, - rowCg0, rowCg1, rowDg0, rowDg1); - dst[i] = (g << 4) | r; - } - } - else { - _mesa_problem(NULL, "bad format in do_row()"); - } -} - - -/* - * These functions generate a 1/2-size mipmap image from a source image. - * Texture borders are handled by copying or averaging the source image's - * border texels, depending on the scale-down factor. - */ - -static void -make_1d_mipmap(GLenum datatype, GLuint comps, GLint border, - GLint srcWidth, const GLubyte *srcPtr, - GLint dstWidth, GLubyte *dstPtr) -{ - const GLint bpt = bytes_per_pixel(datatype, comps); - const GLubyte *src; - GLubyte *dst; - - /* skip the border pixel, if any */ - src = srcPtr + border * bpt; - dst = dstPtr + border * bpt; - - /* we just duplicate the input row, kind of hack, saves code */ - do_row(datatype, comps, srcWidth - 2 * border, src, src, - dstWidth - 2 * border, dst); - - if (border) { - /* copy left-most pixel from source */ - assert(dstPtr); - assert(srcPtr); - memcpy(dstPtr, srcPtr, bpt); - /* copy right-most pixel from source */ - memcpy(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, - bpt); - } -} - - -static void -make_2d_mipmap(GLenum datatype, GLuint comps, GLint border, - GLint srcWidth, GLint srcHeight, - const GLubyte *srcPtr, GLint srcRowStride, - GLint dstWidth, GLint dstHeight, - GLubyte *dstPtr, GLint dstRowStride) -{ - const GLint bpt = bytes_per_pixel(datatype, comps); - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint srcRowBytes = bpt * srcRowStride; - const GLint dstRowBytes = bpt * dstRowStride; - const GLubyte *srcA, *srcB; - GLubyte *dst; - GLint row, srcRowStep; - - /* Compute src and dst pointers, skipping any border */ - srcA = srcPtr + border * ((srcWidth + 1) * bpt); - if (srcHeight > 1 && srcHeight > dstHeight) { - /* sample from two source rows */ - srcB = srcA + srcRowBytes; - srcRowStep = 2; - } - else { - /* sample from one source row */ - srcB = srcA; - srcRowStep = 1; - } - - dst = dstPtr + border * ((dstWidth + 1) * bpt); - - for (row = 0; row < dstHeightNB; row++) { - do_row(datatype, comps, srcWidthNB, srcA, srcB, - dstWidthNB, dst); - srcA += srcRowStep * srcRowBytes; - srcB += srcRowStep * srcRowBytes; - dst += dstRowBytes; - } - - /* This is ugly but probably won't be used much */ - if (border > 0) { - /* fill in dest border */ - /* lower-left border pixel */ - assert(dstPtr); - assert(srcPtr); - memcpy(dstPtr, srcPtr, bpt); - /* lower-right border pixel */ - memcpy(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, bpt); - /* upper-left border pixel */ - memcpy(dstPtr + dstWidth * (dstHeight - 1) * bpt, - srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); - /* upper-right border pixel */ - memcpy(dstPtr + (dstWidth * dstHeight - 1) * bpt, - srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); - /* lower border */ - do_row(datatype, comps, srcWidthNB, - srcPtr + bpt, - srcPtr + bpt, - dstWidthNB, dstPtr + bpt); - /* upper border */ - do_row(datatype, comps, srcWidthNB, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - dstWidthNB, - dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); - /* left and right borders */ - if (srcHeight == dstHeight) { - /* copy border pixel from src to dst */ - for (row = 1; row < srcHeight; row++) { - memcpy(dstPtr + dstWidth * row * bpt, - srcPtr + srcWidth * row * bpt, bpt); - memcpy(dstPtr + (dstWidth * row + dstWidth - 1) * bpt, - srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt); - } - } - else { - /* average two src pixels each dest pixel */ - for (row = 0; row < dstHeightNB; row += 2) { - do_row(datatype, comps, 1, - srcPtr + (srcWidth * (row * 2 + 1)) * bpt, - srcPtr + (srcWidth * (row * 2 + 2)) * bpt, - 1, dstPtr + (dstWidth * row + 1) * bpt); - do_row(datatype, comps, 1, - srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt, - srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt, - 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); - } - } - } -} - - -static void -make_3d_mipmap(GLenum datatype, GLuint comps, GLint border, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - const GLubyte *srcPtr, GLint srcRowStride, - GLint dstWidth, GLint dstHeight, GLint dstDepth, - GLubyte *dstPtr, GLint dstRowStride) -{ - const GLint bpt = bytes_per_pixel(datatype, comps); - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint srcDepthNB = srcDepth - 2 * border; - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint dstDepthNB = dstDepth - 2 * border; - GLint img, row; - GLint bytesPerSrcImage, bytesPerDstImage; - GLint bytesPerSrcRow, bytesPerDstRow; - GLint srcImageOffset, srcRowOffset; - - (void) srcDepthNB; /* silence warnings */ - - - bytesPerSrcImage = srcWidth * srcHeight * bpt; - bytesPerDstImage = dstWidth * dstHeight * bpt; - - bytesPerSrcRow = srcWidth * bpt; - bytesPerDstRow = dstWidth * bpt; - - /* Offset between adjacent src images to be averaged together */ - srcImageOffset = (srcDepth == dstDepth) ? 0 : bytesPerSrcImage; - - /* Offset between adjacent src rows to be averaged together */ - srcRowOffset = (srcHeight == dstHeight) ? 0 : srcWidth * bpt; - - /* - * Need to average together up to 8 src pixels for each dest pixel. - * Break that down into 3 operations: - * 1. take two rows from source image and average them together. - * 2. take two rows from next source image and average them together. - * 3. take the two averaged rows and average them for the final dst row. - */ - - /* - printf("mip3d %d x %d x %d -> %d x %d x %d\n", - srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth); - */ - - for (img = 0; img < dstDepthNB; img++) { - /* first source image pointer, skipping border */ - const GLubyte *imgSrcA = srcPtr - + (bytesPerSrcImage + bytesPerSrcRow + border) * bpt * border - + img * (bytesPerSrcImage + srcImageOffset); - /* second source image pointer, skipping border */ - const GLubyte *imgSrcB = imgSrcA + srcImageOffset; - /* address of the dest image, skipping border */ - GLubyte *imgDst = dstPtr - + (bytesPerDstImage + bytesPerDstRow + border) * bpt * border - + img * bytesPerDstImage; - - /* setup the four source row pointers and the dest row pointer */ - const GLubyte *srcImgARowA = imgSrcA; - const GLubyte *srcImgARowB = imgSrcA + srcRowOffset; - const GLubyte *srcImgBRowA = imgSrcB; - const GLubyte *srcImgBRowB = imgSrcB + srcRowOffset; - GLubyte *dstImgRow = imgDst; - - for (row = 0; row < dstHeightNB; row++) { - do_row_3D(datatype, comps, srcWidthNB, - srcImgARowA, srcImgARowB, - srcImgBRowA, srcImgBRowB, - dstWidthNB, dstImgRow); - - /* advance to next rows */ - srcImgARowA += bytesPerSrcRow + srcRowOffset; - srcImgARowB += bytesPerSrcRow + srcRowOffset; - srcImgBRowA += bytesPerSrcRow + srcRowOffset; - srcImgBRowB += bytesPerSrcRow + srcRowOffset; - dstImgRow += bytesPerDstRow; - } - } - - - /* Luckily we can leverage the make_2d_mipmap() function here! */ - if (border > 0) { - /* do front border image */ - make_2d_mipmap(datatype, comps, 1, srcWidth, srcHeight, srcPtr, srcRowStride, - dstWidth, dstHeight, dstPtr, dstRowStride); - /* do back border image */ - make_2d_mipmap(datatype, comps, 1, srcWidth, srcHeight, - srcPtr + bytesPerSrcImage * (srcDepth - 1), srcRowStride, - dstWidth, dstHeight, - dstPtr + bytesPerDstImage * (dstDepth - 1), dstRowStride); - /* do four remaining border edges that span the image slices */ - if (srcDepth == dstDepth) { - /* just copy border pixels from src to dst */ - for (img = 0; img < dstDepthNB; img++) { - const GLubyte *src; - GLubyte *dst; - - /* do border along [img][row=0][col=0] */ - src = srcPtr + (img + 1) * bytesPerSrcImage; - dst = dstPtr + (img + 1) * bytesPerDstImage; - memcpy(dst, src, bpt); - - /* do border along [img][row=dstHeight-1][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcHeight - 1) * bytesPerSrcRow; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstHeight - 1) * bytesPerDstRow; - memcpy(dst, src, bpt); - - /* do border along [img][row=0][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcWidth - 1) * bpt; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstWidth - 1) * bpt; - memcpy(dst, src, bpt); - - /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (bytesPerSrcImage - bpt); - dst = dstPtr + (img + 1) * bytesPerDstImage - + (bytesPerDstImage - bpt); - memcpy(dst, src, bpt); - } - } - else { - /* average border pixels from adjacent src image pairs */ - ASSERT(srcDepthNB == 2 * dstDepthNB); - for (img = 0; img < dstDepthNB; img++) { - const GLubyte *src; - GLubyte *dst; - - /* do border along [img][row=0][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage; - dst = dstPtr + (img + 1) * bytesPerDstImage; - do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=dstHeight-1][col=0] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcHeight - 1) * bytesPerSrcRow; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstHeight - 1) * bytesPerDstRow; - do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=0][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (srcWidth - 1) * bpt; - dst = dstPtr + (img + 1) * bytesPerDstImage - + (dstWidth - 1) * bpt; - do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst); - - /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ - src = srcPtr + (img * 2 + 1) * bytesPerSrcImage - + (bytesPerSrcImage - bpt); - dst = dstPtr + (img + 1) * bytesPerDstImage - + (bytesPerDstImage - bpt); - do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst); - } - } - } -} - - -static void -make_1d_stack_mipmap(GLenum datatype, GLuint comps, GLint border, - GLint srcWidth, const GLubyte *srcPtr, GLuint srcRowStride, - GLint dstWidth, GLint dstHeight, - GLubyte *dstPtr, GLuint dstRowStride ) -{ - const GLint bpt = bytes_per_pixel(datatype, comps); - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint srcRowBytes = bpt * srcRowStride; - const GLint dstRowBytes = bpt * dstRowStride; - const GLubyte *src; - GLubyte *dst; - GLint row; - - /* Compute src and dst pointers, skipping any border */ - src = srcPtr + border * ((srcWidth + 1) * bpt); - dst = dstPtr + border * ((dstWidth + 1) * bpt); - - for (row = 0; row < dstHeightNB; row++) { - do_row(datatype, comps, srcWidthNB, src, src, - dstWidthNB, dst); - src += srcRowBytes; - dst += dstRowBytes; - } - - if (border) { - /* copy left-most pixel from source */ - assert(dstPtr); - assert(srcPtr); - memcpy(dstPtr, srcPtr, bpt); - /* copy right-most pixel from source */ - memcpy(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, - bpt); - } -} - - -/** - * \bug - * There is quite a bit of refactoring that could be done with this function - * and \c make_2d_mipmap. - */ -static void -make_2d_stack_mipmap(GLenum datatype, GLuint comps, GLint border, - GLint srcWidth, GLint srcHeight, - const GLubyte *srcPtr, GLint srcRowStride, - GLint dstWidth, GLint dstHeight, GLint dstDepth, - GLubyte *dstPtr, GLint dstRowStride) -{ - const GLint bpt = bytes_per_pixel(datatype, comps); - const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ - const GLint dstWidthNB = dstWidth - 2 * border; - const GLint dstHeightNB = dstHeight - 2 * border; - const GLint dstDepthNB = dstDepth - 2 * border; - const GLint srcRowBytes = bpt * srcRowStride; - const GLint dstRowBytes = bpt * dstRowStride; - const GLubyte *srcA, *srcB; - GLubyte *dst; - GLint layer; - GLint row; - - /* Compute src and dst pointers, skipping any border */ - srcA = srcPtr + border * ((srcWidth + 1) * bpt); - if (srcHeight > 1) - srcB = srcA + srcRowBytes; - else - srcB = srcA; - dst = dstPtr + border * ((dstWidth + 1) * bpt); - - for (layer = 0; layer < dstDepthNB; layer++) { - for (row = 0; row < dstHeightNB; row++) { - do_row(datatype, comps, srcWidthNB, srcA, srcB, - dstWidthNB, dst); - srcA += 2 * srcRowBytes; - srcB += 2 * srcRowBytes; - dst += dstRowBytes; - } - - /* This is ugly but probably won't be used much */ - if (border > 0) { - /* fill in dest border */ - /* lower-left border pixel */ - assert(dstPtr); - assert(srcPtr); - memcpy(dstPtr, srcPtr, bpt); - /* lower-right border pixel */ - memcpy(dstPtr + (dstWidth - 1) * bpt, - srcPtr + (srcWidth - 1) * bpt, bpt); - /* upper-left border pixel */ - memcpy(dstPtr + dstWidth * (dstHeight - 1) * bpt, - srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); - /* upper-right border pixel */ - memcpy(dstPtr + (dstWidth * dstHeight - 1) * bpt, - srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); - /* lower border */ - do_row(datatype, comps, srcWidthNB, - srcPtr + bpt, - srcPtr + bpt, - dstWidthNB, dstPtr + bpt); - /* upper border */ - do_row(datatype, comps, srcWidthNB, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, - dstWidthNB, - dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); - /* left and right borders */ - if (srcHeight == dstHeight) { - /* copy border pixel from src to dst */ - for (row = 1; row < srcHeight; row++) { - memcpy(dstPtr + dstWidth * row * bpt, - srcPtr + srcWidth * row * bpt, bpt); - memcpy(dstPtr + (dstWidth * row + dstWidth - 1) * bpt, - srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt); - } - } - else { - /* average two src pixels each dest pixel */ - for (row = 0; row < dstHeightNB; row += 2) { - do_row(datatype, comps, 1, - srcPtr + (srcWidth * (row * 2 + 1)) * bpt, - srcPtr + (srcWidth * (row * 2 + 2)) * bpt, - 1, dstPtr + (dstWidth * row + 1) * bpt); - do_row(datatype, comps, 1, - srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt, - srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt, - 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); - } - } - } - } -} - - -/** - * Down-sample a texture image to produce the next lower mipmap level. - * \param comps components per texel (1, 2, 3 or 4) - * \param srcRowStride stride between source rows, in texels - * \param dstRowStride stride between destination rows, in texels - */ -void -_mesa_generate_mipmap_level(GLenum target, - GLenum datatype, GLuint comps, - GLint border, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - const GLubyte *srcData, - GLint srcRowStride, - GLint dstWidth, GLint dstHeight, GLint dstDepth, - GLubyte *dstData, - GLint dstRowStride) -{ - /* - * We use simple 2x2 averaging to compute the next mipmap level. - */ - switch (target) { - case GL_TEXTURE_1D: - make_1d_mipmap(datatype, comps, border, - srcWidth, srcData, - dstWidth, dstData); - break; - case GL_TEXTURE_2D: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - make_2d_mipmap(datatype, comps, border, - srcWidth, srcHeight, srcData, srcRowStride, - dstWidth, dstHeight, dstData, dstRowStride); - break; - case GL_TEXTURE_3D: - make_3d_mipmap(datatype, comps, border, - srcWidth, srcHeight, srcDepth, - srcData, srcRowStride, - dstWidth, dstHeight, dstDepth, - dstData, dstRowStride); - break; - case GL_TEXTURE_1D_ARRAY_EXT: - make_1d_stack_mipmap(datatype, comps, border, - srcWidth, srcData, srcRowStride, - dstWidth, dstHeight, - dstData, dstRowStride); - break; - case GL_TEXTURE_2D_ARRAY_EXT: - make_2d_stack_mipmap(datatype, comps, border, - srcWidth, srcHeight, - srcData, srcRowStride, - dstWidth, dstHeight, - dstDepth, dstData, dstRowStride); - break; - case GL_TEXTURE_RECTANGLE_NV: - /* no mipmaps, do nothing */ - break; - default: - _mesa_problem(NULL, "bad dimensions in _mesa_generate_mipmaps"); - return; - } -} - - -/** - * compute next (level+1) image size - * \return GL_FALSE if no smaller size can be generated (eg. src is 1x1x1 size) - */ -static GLboolean -next_mipmap_level_size(GLenum target, GLint border, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - GLint *dstWidth, GLint *dstHeight, GLint *dstDepth) -{ - if (srcWidth - 2 * border > 1) { - *dstWidth = (srcWidth - 2 * border) / 2 + 2 * border; - } - else { - *dstWidth = srcWidth; /* can't go smaller */ - } - - if ((srcHeight - 2 * border > 1) && - (target != GL_TEXTURE_1D_ARRAY_EXT)) { - *dstHeight = (srcHeight - 2 * border) / 2 + 2 * border; - } - else { - *dstHeight = srcHeight; /* can't go smaller */ - } - - if ((srcDepth - 2 * border > 1) && - (target != GL_TEXTURE_2D_ARRAY_EXT)) { - *dstDepth = (srcDepth - 2 * border) / 2 + 2 * border; - } - else { - *dstDepth = srcDepth; /* can't go smaller */ - } - - if (*dstWidth == srcWidth && - *dstHeight == srcHeight && - *dstDepth == srcDepth) { - return GL_FALSE; - } - else { - return GL_TRUE; - } -} - - - - -/** - * Automatic mipmap generation. - * This is the fallback/default function for ctx->Driver.GenerateMipmap(). - * Generate a complete set of mipmaps from texObj's BaseLevel image. - * Stop at texObj's MaxLevel or when we get to the 1x1 texture. - * For cube maps, target will be one of - * GL_TEXTURE_CUBE_MAP_POSITIVE/NEGATIVE_X/Y/Z; never GL_TEXTURE_CUBE_MAP. - */ -void -_mesa_generate_mipmap(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj) -{ - const struct gl_texture_image *srcImage; - gl_format convertFormat; - const GLubyte *srcData = NULL; - GLubyte *dstData = NULL; - GLint level, maxLevels; - GLenum datatype; - GLuint comps; - - ASSERT(texObj); - srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel); - ASSERT(srcImage); - - maxLevels = _mesa_max_texture_levels(ctx, texObj->Target); - ASSERT(maxLevels > 0); /* bad target */ - - /* Find convertFormat - the format that do_row() will process */ - - if (_mesa_is_format_compressed(srcImage->TexFormat)) { - /* setup for compressed textures - need to allocate temporary - * image buffers to hold uncompressed images. - */ - GLuint row; - GLint components, size; - GLchan *dst; - - assert(texObj->Target == GL_TEXTURE_2D || - texObj->Target == GL_TEXTURE_CUBE_MAP_ARB); - - if (srcImage->_BaseFormat == GL_RGB) { - convertFormat = MESA_FORMAT_RGB888; - components = 3; - } else if (srcImage->_BaseFormat == GL_RED) { - convertFormat = MESA_FORMAT_R8; - components = 1; - } else if (srcImage->_BaseFormat == GL_RG) { - convertFormat = MESA_FORMAT_RG88; - components = 2; - } else if (srcImage->_BaseFormat == GL_RGBA) { - convertFormat = MESA_FORMAT_RGBA8888; - components = 4; - } else if (srcImage->_BaseFormat == GL_LUMINANCE) { - convertFormat = MESA_FORMAT_L8; - components = 1; - } else if (srcImage->_BaseFormat == GL_LUMINANCE_ALPHA) { - convertFormat = MESA_FORMAT_AL88; - components = 2; - } else { - _mesa_problem(ctx, "bad srcImage->_BaseFormat in _mesa_generate_mipmaps"); - return; - } - - /* allocate storage for uncompressed GL_RGB or GL_RGBA images */ - size = _mesa_bytes_per_pixel(srcImage->_BaseFormat, CHAN_TYPE) - * srcImage->Width * srcImage->Height * srcImage->Depth + 20; - /* 20 extra bytes, just be safe when calling last FetchTexel */ - srcData = (GLubyte *) malloc(size); - if (!srcData) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); - return; - } - dstData = (GLubyte *) malloc(size / 2); /* 1/4 would probably be OK */ - if (!dstData) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); - free((void *) srcData); - return; - } - - /* decompress base image here */ - dst = (GLchan *) srcData; - for (row = 0; row < srcImage->Height; row++) { - GLuint col; - for (col = 0; col < srcImage->Width; col++) { - srcImage->FetchTexelc(srcImage, col, row, 0, dst); - dst += components; - } - } - } - else { - /* uncompressed */ - convertFormat = srcImage->TexFormat; - } - - _mesa_format_to_type_and_comps(convertFormat, &datatype, &comps); - - for (level = texObj->BaseLevel; level < texObj->MaxLevel - && level < maxLevels - 1; level++) { - /* generate image[level+1] from image[level] */ - const struct gl_texture_image *srcImage; - struct gl_texture_image *dstImage; - GLint srcWidth, srcHeight, srcDepth; - GLint dstWidth, dstHeight, dstDepth; - GLint border; - GLboolean nextLevel; - - /* get src image parameters */ - srcImage = _mesa_select_tex_image(ctx, texObj, target, level); - ASSERT(srcImage); - srcWidth = srcImage->Width; - srcHeight = srcImage->Height; - srcDepth = srcImage->Depth; - border = srcImage->Border; - - nextLevel = next_mipmap_level_size(target, border, - srcWidth, srcHeight, srcDepth, - &dstWidth, &dstHeight, &dstDepth); - if (!nextLevel) { - /* all done */ - if (_mesa_is_format_compressed(srcImage->TexFormat)) { - free((void *) srcData); - free(dstData); - } - return; - } - - /* get dest gl_texture_image */ - dstImage = _mesa_get_tex_image(ctx, texObj, target, level + 1); - if (!dstImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - - /* Free old image data */ - if (dstImage->Data) - ctx->Driver.FreeTexImageData(ctx, dstImage); - - /* initialize new image */ - _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight, - dstDepth, border, srcImage->InternalFormat, - srcImage->TexFormat); - dstImage->DriverData = NULL; - dstImage->FetchTexelc = srcImage->FetchTexelc; - dstImage->FetchTexelf = srcImage->FetchTexelf; - - /* Alloc new teximage data buffer */ - { - GLuint size = _mesa_format_image_size(dstImage->TexFormat, - dstWidth, dstHeight, dstDepth); - dstImage->Data = _mesa_alloc_texmemory(size); - if (!dstImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); - return; - } - } - - /* Setup src and dest data pointers */ - if (_mesa_is_format_compressed(dstImage->TexFormat)) { - /* srcData and dstData are already set */ - ASSERT(srcData); - ASSERT(dstData); - } - else { - srcData = (const GLubyte *) srcImage->Data; - dstData = (GLubyte *) dstImage->Data; - } - - ASSERT(dstImage->TexFormat); - ASSERT(dstImage->FetchTexelc); - ASSERT(dstImage->FetchTexelf); - - _mesa_generate_mipmap_level(target, datatype, comps, border, - srcWidth, srcHeight, srcDepth, - srcData, srcImage->RowStride, - dstWidth, dstHeight, dstDepth, - dstData, dstImage->RowStride); - - - if (_mesa_is_format_compressed(dstImage->TexFormat)) { - GLubyte *temp; - /* compress image from dstData into dstImage->Data */ - const GLenum srcFormat = _mesa_get_format_base_format(convertFormat); - GLint dstRowStride - = _mesa_format_row_stride(dstImage->TexFormat, dstWidth); - ASSERT(srcFormat == GL_RGB || srcFormat == GL_RGBA); - - _mesa_texstore(ctx, 2, dstImage->_BaseFormat, - dstImage->TexFormat, - dstImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, 0, /* strides */ - dstWidth, dstHeight, 1, /* size */ - srcFormat, CHAN_TYPE, - dstData, /* src data, actually */ - &ctx->DefaultPacking); - - /* swap src and dest pointers */ - temp = (GLubyte *) srcData; - srcData = dstData; - dstData = temp; - } - - } /* loop over mipmap levels */ -} - - -/** - * Helper function for drivers which need to rescale texture images to - * certain aspect ratios. - * Nearest filtering only (for broken hardware that can't support - * all aspect ratios). This can be made a lot faster, but I don't - * really care enough... - */ -void -_mesa_rescale_teximage2d(GLuint bytesPerPixel, - GLuint srcStrideInPixels, - GLuint dstRowStride, - GLint srcWidth, GLint srcHeight, - GLint dstWidth, GLint dstHeight, - const GLvoid *srcImage, GLvoid *dstImage) -{ - GLint row, col; - -#define INNER_LOOP( TYPE, HOP, WOP ) \ - for ( row = 0 ; row < dstHeight ; row++ ) { \ - GLint srcRow = row HOP hScale; \ - for ( col = 0 ; col < dstWidth ; col++ ) { \ - GLint srcCol = col WOP wScale; \ - dst[col] = src[srcRow * srcStrideInPixels + srcCol]; \ - } \ - dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \ - } \ - -#define RESCALE_IMAGE( TYPE ) \ -do { \ - const TYPE *src = (const TYPE *)srcImage; \ - TYPE *dst = (TYPE *)dstImage; \ - \ - if ( srcHeight < dstHeight ) { \ - const GLint hScale = dstHeight / srcHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, /, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, /, * ); \ - } \ - } \ - else { \ - const GLint hScale = srcHeight / dstHeight; \ - if ( srcWidth < dstWidth ) { \ - const GLint wScale = dstWidth / srcWidth; \ - INNER_LOOP( TYPE, *, / ); \ - } \ - else { \ - const GLint wScale = srcWidth / dstWidth; \ - INNER_LOOP( TYPE, *, * ); \ - } \ - } \ -} while (0) - - switch ( bytesPerPixel ) { - case 4: - RESCALE_IMAGE( GLuint ); - break; - - case 2: - RESCALE_IMAGE( GLushort ); - break; - - case 1: - RESCALE_IMAGE( GLubyte ); - break; - default: - _mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d"); - } -} - - -/** - * Upscale an image by replication, not (typical) stretching. - * We use this when the image width or height is less than a - * certain size (4, 8) and we need to upscale an image. - */ -void -_mesa_upscale_teximage2d(GLsizei inWidth, GLsizei inHeight, - GLsizei outWidth, GLsizei outHeight, - GLint comps, const GLchan *src, GLint srcRowStride, - GLchan *dest ) -{ - GLint i, j, k; - - ASSERT(outWidth >= inWidth); - ASSERT(outHeight >= inHeight); -#if 0 - ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2); - ASSERT((outWidth & 3) == 0); - ASSERT((outHeight & 3) == 0); -#endif - - for (i = 0; i < outHeight; i++) { - const GLint ii = i % inHeight; - for (j = 0; j < outWidth; j++) { - const GLint jj = j % inWidth; - for (k = 0; k < comps; k++) { - dest[(i * outWidth + j) * comps + k] - = src[ii * srcRowStride + jj * comps + k]; - } - } - } -} - +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file mipmap.c mipmap generation and teximage resizing functions.
+ */
+
+#include "imports.h"
+#include "formats.h"
+#include "mipmap.h"
+#include "mtypes.h"
+#include "teximage.h"
+#include "texstore.h"
+#include "image.h"
+
+
+
+static GLint
+bytes_per_pixel(GLenum datatype, GLuint comps)
+{
+ GLint b = _mesa_sizeof_packed_type(datatype);
+ assert(b >= 0);
+
+ if (_mesa_type_is_packed(datatype))
+ return b;
+ else
+ return b * comps;
+}
+
+
+/**
+ * \name Support macros for do_row and do_row_3d
+ *
+ * The macro madness is here for two reasons. First, it compacts the code
+ * slightly. Second, it makes it much easier to adjust the specifics of the
+ * filter to tune the rounding characteristics.
+ */
+/*@{*/
+#define DECLARE_ROW_POINTERS(t, e) \
+ const t(*rowA)[e] = (const t(*)[e]) srcRowA; \
+ const t(*rowB)[e] = (const t(*)[e]) srcRowB; \
+ const t(*rowC)[e] = (const t(*)[e]) srcRowC; \
+ const t(*rowD)[e] = (const t(*)[e]) srcRowD; \
+ t(*dst)[e] = (t(*)[e]) dstRow
+
+#define DECLARE_ROW_POINTERS0(t) \
+ const t *rowA = (const t *) srcRowA; \
+ const t *rowB = (const t *) srcRowB; \
+ const t *rowC = (const t *) srcRowC; \
+ const t *rowD = (const t *) srcRowD; \
+ t *dst = (t *) dstRow
+
+#define FILTER_SUM_3D(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \
+ ((unsigned) Aj + (unsigned) Ak \
+ + (unsigned) Bj + (unsigned) Bk \
+ + (unsigned) Cj + (unsigned) Ck \
+ + (unsigned) Dj + (unsigned) Dk \
+ + 4) >> 3
+
+#define FILTER_3D(e) \
+ do { \
+ dst[i][e] = FILTER_SUM_3D(rowA[j][e], rowA[k][e], \
+ rowB[j][e], rowB[k][e], \
+ rowC[j][e], rowC[k][e], \
+ rowD[j][e], rowD[k][e]); \
+ } while(0)
+
+#define FILTER_SUM_3D_SIGNED(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \
+ (Aj + Ak \
+ + Bj + Bk \
+ + Cj + Ck \
+ + Dj + Dk \
+ + 4) / 8
+
+#define FILTER_3D_SIGNED(e) \
+ do { \
+ dst[i][e] = FILTER_SUM_3D_SIGNED(rowA[j][e], rowA[k][e], \
+ rowB[j][e], rowB[k][e], \
+ rowC[j][e], rowC[k][e], \
+ rowD[j][e], rowD[k][e]); \
+ } while(0)
+
+#define FILTER_F_3D(e) \
+ do { \
+ dst[i][e] = (rowA[j][e] + rowA[k][e] \
+ + rowB[j][e] + rowB[k][e] \
+ + rowC[j][e] + rowC[k][e] \
+ + rowD[j][e] + rowD[k][e]) * 0.125F; \
+ } while(0)
+
+#define FILTER_HF_3D(e) \
+ do { \
+ const GLfloat aj = _mesa_half_to_float(rowA[j][e]); \
+ const GLfloat ak = _mesa_half_to_float(rowA[k][e]); \
+ const GLfloat bj = _mesa_half_to_float(rowB[j][e]); \
+ const GLfloat bk = _mesa_half_to_float(rowB[k][e]); \
+ const GLfloat cj = _mesa_half_to_float(rowC[j][e]); \
+ const GLfloat ck = _mesa_half_to_float(rowC[k][e]); \
+ const GLfloat dj = _mesa_half_to_float(rowD[j][e]); \
+ const GLfloat dk = _mesa_half_to_float(rowD[k][e]); \
+ dst[i][e] = _mesa_float_to_half((aj + ak + bj + bk + cj + ck + dj + dk) \
+ * 0.125F); \
+ } while(0)
+/*@}*/
+
+
+/**
+ * Average together two rows of a source image to produce a single new
+ * row in the dest image. It's legal for the two source rows to point
+ * to the same data. The source width must be equal to either the
+ * dest width or two times the dest width.
+ * \param datatype GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_FLOAT, etc.
+ * \param comps number of components per pixel (1..4)
+ */
+static void
+do_row(GLenum datatype, GLuint comps, GLint srcWidth,
+ const GLvoid *srcRowA, const GLvoid *srcRowB,
+ GLint dstWidth, GLvoid *dstRow)
+{
+ const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1;
+ const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2;
+
+ ASSERT(comps >= 1);
+ ASSERT(comps <= 4);
+
+ /* This assertion is no longer valid with non-power-of-2 textures
+ assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth);
+ */
+
+ if (datatype == GL_UNSIGNED_BYTE && comps == 4) {
+ GLuint i, j, k;
+ const GLubyte(*rowA)[4] = (const GLubyte(*)[4]) srcRowA;
+ const GLubyte(*rowB)[4] = (const GLubyte(*)[4]) srcRowB;
+ GLubyte(*dst)[4] = (GLubyte(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_BYTE && comps == 3) {
+ GLuint i, j, k;
+ const GLubyte(*rowA)[3] = (const GLubyte(*)[3]) srcRowA;
+ const GLubyte(*rowB)[3] = (const GLubyte(*)[3]) srcRowB;
+ GLubyte(*dst)[3] = (GLubyte(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_BYTE && comps == 2) {
+ GLuint i, j, k;
+ const GLubyte(*rowA)[2] = (const GLubyte(*)[2]) srcRowA;
+ const GLubyte(*rowB)[2] = (const GLubyte(*)[2]) srcRowB;
+ GLubyte(*dst)[2] = (GLubyte(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) >> 2;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) >> 2;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_BYTE && comps == 1) {
+ GLuint i, j, k;
+ const GLubyte *rowA = (const GLubyte *) srcRowA;
+ const GLubyte *rowB = (const GLubyte *) srcRowB;
+ GLubyte *dst = (GLubyte *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2;
+ }
+ }
+
+ else if (datatype == GL_BYTE && comps == 4) {
+ GLuint i, j, k;
+ const GLbyte(*rowA)[4] = (const GLbyte(*)[4]) srcRowA;
+ const GLbyte(*rowB)[4] = (const GLbyte(*)[4]) srcRowB;
+ GLbyte(*dst)[4] = (GLbyte(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
+ }
+ }
+ else if (datatype == GL_BYTE && comps == 3) {
+ GLuint i, j, k;
+ const GLbyte(*rowA)[3] = (const GLbyte(*)[3]) srcRowA;
+ const GLbyte(*rowB)[3] = (const GLbyte(*)[3]) srcRowB;
+ GLbyte(*dst)[3] = (GLbyte(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ }
+ }
+ else if (datatype == GL_BYTE && comps == 2) {
+ GLuint i, j, k;
+ const GLbyte(*rowA)[2] = (const GLbyte(*)[2]) srcRowA;
+ const GLbyte(*rowB)[2] = (const GLbyte(*)[2]) srcRowB;
+ GLbyte(*dst)[2] = (GLbyte(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ }
+ }
+ else if (datatype == GL_BYTE && comps == 1) {
+ GLuint i, j, k;
+ const GLbyte *rowA = (const GLbyte *) srcRowA;
+ const GLbyte *rowB = (const GLbyte *) srcRowB;
+ GLbyte *dst = (GLbyte *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
+ }
+ }
+
+ else if (datatype == GL_UNSIGNED_SHORT && comps == 4) {
+ GLuint i, j, k;
+ const GLushort(*rowA)[4] = (const GLushort(*)[4]) srcRowA;
+ const GLushort(*rowB)[4] = (const GLushort(*)[4]) srcRowB;
+ GLushort(*dst)[4] = (GLushort(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT && comps == 3) {
+ GLuint i, j, k;
+ const GLushort(*rowA)[3] = (const GLushort(*)[3]) srcRowA;
+ const GLushort(*rowB)[3] = (const GLushort(*)[3]) srcRowB;
+ GLushort(*dst)[3] = (GLushort(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT && comps == 2) {
+ GLuint i, j, k;
+ const GLushort(*rowA)[2] = (const GLushort(*)[2]) srcRowA;
+ const GLushort(*rowB)[2] = (const GLushort(*)[2]) srcRowB;
+ GLushort(*dst)[2] = (GLushort(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT && comps == 1) {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
+ }
+ }
+
+ else if (datatype == GL_SHORT && comps == 4) {
+ GLuint i, j, k;
+ const GLshort(*rowA)[4] = (const GLshort(*)[4]) srcRowA;
+ const GLshort(*rowB)[4] = (const GLshort(*)[4]) srcRowB;
+ GLshort(*dst)[4] = (GLshort(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
+ }
+ }
+ else if (datatype == GL_SHORT && comps == 3) {
+ GLuint i, j, k;
+ const GLshort(*rowA)[3] = (const GLshort(*)[3]) srcRowA;
+ const GLshort(*rowB)[3] = (const GLshort(*)[3]) srcRowB;
+ GLshort(*dst)[3] = (GLshort(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
+ }
+ }
+ else if (datatype == GL_SHORT && comps == 2) {
+ GLuint i, j, k;
+ const GLshort(*rowA)[2] = (const GLshort(*)[2]) srcRowA;
+ const GLshort(*rowB)[2] = (const GLshort(*)[2]) srcRowB;
+ GLshort(*dst)[2] = (GLshort(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
+ }
+ }
+ else if (datatype == GL_SHORT && comps == 1) {
+ GLuint i, j, k;
+ const GLshort *rowA = (const GLshort *) srcRowA;
+ const GLshort *rowB = (const GLshort *) srcRowB;
+ GLshort *dst = (GLshort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
+ }
+ }
+
+ else if (datatype == GL_FLOAT && comps == 4) {
+ GLuint i, j, k;
+ const GLfloat(*rowA)[4] = (const GLfloat(*)[4]) srcRowA;
+ const GLfloat(*rowB)[4] = (const GLfloat(*)[4]) srcRowB;
+ GLfloat(*dst)[4] = (GLfloat(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] +
+ rowB[j][2] + rowB[k][2]) * 0.25F;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] +
+ rowB[j][3] + rowB[k][3]) * 0.25F;
+ }
+ }
+ else if (datatype == GL_FLOAT && comps == 3) {
+ GLuint i, j, k;
+ const GLfloat(*rowA)[3] = (const GLfloat(*)[3]) srcRowA;
+ const GLfloat(*rowB)[3] = (const GLfloat(*)[3]) srcRowB;
+ GLfloat(*dst)[3] = (GLfloat(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] +
+ rowB[j][2] + rowB[k][2]) * 0.25F;
+ }
+ }
+ else if (datatype == GL_FLOAT && comps == 2) {
+ GLuint i, j, k;
+ const GLfloat(*rowA)[2] = (const GLfloat(*)[2]) srcRowA;
+ const GLfloat(*rowB)[2] = (const GLfloat(*)[2]) srcRowB;
+ GLfloat(*dst)[2] = (GLfloat(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ }
+ }
+ else if (datatype == GL_FLOAT && comps == 1) {
+ GLuint i, j, k;
+ const GLfloat *rowA = (const GLfloat *) srcRowA;
+ const GLfloat *rowB = (const GLfloat *) srcRowB;
+ GLfloat *dst = (GLfloat *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F;
+ }
+ }
+
+ else if (datatype == GL_HALF_FLOAT_ARB && comps == 4) {
+ GLuint i, j, k, comp;
+ const GLhalfARB(*rowA)[4] = (const GLhalfARB(*)[4]) srcRowA;
+ const GLhalfARB(*rowB)[4] = (const GLhalfARB(*)[4]) srcRowB;
+ GLhalfARB(*dst)[4] = (GLhalfARB(*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 4; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ else if (datatype == GL_HALF_FLOAT_ARB && comps == 3) {
+ GLuint i, j, k, comp;
+ const GLhalfARB(*rowA)[3] = (const GLhalfARB(*)[3]) srcRowA;
+ const GLhalfARB(*rowB)[3] = (const GLhalfARB(*)[3]) srcRowB;
+ GLhalfARB(*dst)[3] = (GLhalfARB(*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 3; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ else if (datatype == GL_HALF_FLOAT_ARB && comps == 2) {
+ GLuint i, j, k, comp;
+ const GLhalfARB(*rowA)[2] = (const GLhalfARB(*)[2]) srcRowA;
+ const GLhalfARB(*rowB)[2] = (const GLhalfARB(*)[2]) srcRowB;
+ GLhalfARB(*dst)[2] = (GLhalfARB(*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 2; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ else if (datatype == GL_HALF_FLOAT_ARB && comps == 1) {
+ GLuint i, j, k;
+ const GLhalfARB *rowA = (const GLhalfARB *) srcRowA;
+ const GLhalfARB *rowB = (const GLhalfARB *) srcRowB;
+ GLhalfARB *dst = (GLhalfARB *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j]);
+ ak = _mesa_half_to_float(rowA[k]);
+ bj = _mesa_half_to_float(rowB[j]);
+ bk = _mesa_half_to_float(rowB[k]);
+ dst[i] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+
+ else if (datatype == GL_UNSIGNED_INT && comps == 1) {
+ GLuint i, j, k;
+ const GLuint *rowA = (const GLuint *) srcRowA;
+ const GLuint *rowB = (const GLuint *) srcRowB;
+ GLuint *dst = (GLuint *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (GLfloat)(rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4);
+ }
+ }
+
+ else if (datatype == GL_UNSIGNED_SHORT_5_6_5 && comps == 3) {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x1f;
+ const GLint rowAr1 = rowA[k] & 0x1f;
+ const GLint rowBr0 = rowB[j] & 0x1f;
+ const GLint rowBr1 = rowB[k] & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 5) & 0x3f;
+ const GLint rowAg1 = (rowA[k] >> 5) & 0x3f;
+ const GLint rowBg0 = (rowB[j] >> 5) & 0x3f;
+ const GLint rowBg1 = (rowB[k] >> 5) & 0x3f;
+ const GLint rowAb0 = (rowA[j] >> 11) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 11) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 11) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 11) & 0x1f;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ dst[i] = (blue << 11) | (green << 5) | red;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT_4_4_4_4 && comps == 4) {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0xf;
+ const GLint rowAr1 = rowA[k] & 0xf;
+ const GLint rowBr0 = rowB[j] & 0xf;
+ const GLint rowBr1 = rowB[k] & 0xf;
+ const GLint rowAg0 = (rowA[j] >> 4) & 0xf;
+ const GLint rowAg1 = (rowA[k] >> 4) & 0xf;
+ const GLint rowBg0 = (rowB[j] >> 4) & 0xf;
+ const GLint rowBg1 = (rowB[k] >> 4) & 0xf;
+ const GLint rowAb0 = (rowA[j] >> 8) & 0xf;
+ const GLint rowAb1 = (rowA[k] >> 8) & 0xf;
+ const GLint rowBb0 = (rowB[j] >> 8) & 0xf;
+ const GLint rowBb1 = (rowB[k] >> 8) & 0xf;
+ const GLint rowAa0 = (rowA[j] >> 12) & 0xf;
+ const GLint rowAa1 = (rowA[k] >> 12) & 0xf;
+ const GLint rowBa0 = (rowB[j] >> 12) & 0xf;
+ const GLint rowBa1 = (rowB[k] >> 12) & 0xf;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
+ dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV && comps == 4) {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x1f;
+ const GLint rowAr1 = rowA[k] & 0x1f;
+ const GLint rowBr0 = rowB[j] & 0x1f;
+ const GLint rowBr1 = rowB[k] & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 5) & 0x1f;
+ const GLint rowAg1 = (rowA[k] >> 5) & 0x1f;
+ const GLint rowBg0 = (rowB[j] >> 5) & 0x1f;
+ const GLint rowBg1 = (rowB[k] >> 5) & 0x1f;
+ const GLint rowAb0 = (rowA[j] >> 10) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 10) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 10) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 10) & 0x1f;
+ const GLint rowAa0 = (rowA[j] >> 15) & 0x1;
+ const GLint rowAa1 = (rowA[k] >> 15) & 0x1;
+ const GLint rowBa0 = (rowB[j] >> 15) & 0x1;
+ const GLint rowBa1 = (rowB[k] >> 15) & 0x1;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
+ dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red;
+ }
+ }
+ else if (datatype == GL_UNSIGNED_SHORT_5_5_5_1 && comps == 4) {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = (rowA[j] >> 11) & 0x1f;
+ const GLint rowAr1 = (rowA[k] >> 11) & 0x1f;
+ const GLint rowBr0 = (rowB[j] >> 11) & 0x1f;
+ const GLint rowBr1 = (rowB[k] >> 11) & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 6) & 0x1f;
+ const GLint rowAg1 = (rowA[k] >> 6) & 0x1f;
+ const GLint rowBg0 = (rowB[j] >> 6) & 0x1f;
+ const GLint rowBg1 = (rowB[k] >> 6) & 0x1f;
+ const GLint rowAb0 = (rowA[j] >> 1) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 1) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 1) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 1) & 0x1f;
+ const GLint rowAa0 = (rowA[j] & 0x1);
+ const GLint rowAa1 = (rowA[k] & 0x1);
+ const GLint rowBa0 = (rowB[j] & 0x1);
+ const GLint rowBa1 = (rowB[k] & 0x1);
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
+ dst[i] = (red << 11) | (green << 6) | (blue << 1) | alpha;
+ }
+ }
+
+ else if (datatype == GL_UNSIGNED_BYTE_3_3_2 && comps == 3) {
+ GLuint i, j, k;
+ const GLubyte *rowA = (const GLubyte *) srcRowA;
+ const GLubyte *rowB = (const GLubyte *) srcRowB;
+ GLubyte *dst = (GLubyte *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x3;
+ const GLint rowAr1 = rowA[k] & 0x3;
+ const GLint rowBr0 = rowB[j] & 0x3;
+ const GLint rowBr1 = rowB[k] & 0x3;
+ const GLint rowAg0 = (rowA[j] >> 2) & 0x7;
+ const GLint rowAg1 = (rowA[k] >> 2) & 0x7;
+ const GLint rowBg0 = (rowB[j] >> 2) & 0x7;
+ const GLint rowBg1 = (rowB[k] >> 2) & 0x7;
+ const GLint rowAb0 = (rowA[j] >> 5) & 0x7;
+ const GLint rowAb1 = (rowA[k] >> 5) & 0x7;
+ const GLint rowBb0 = (rowB[j] >> 5) & 0x7;
+ const GLint rowBb1 = (rowB[k] >> 5) & 0x7;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ dst[i] = (blue << 5) | (green << 2) | red;
+ }
+ }
+
+ else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) {
+ GLuint i, j, k;
+ const GLubyte *rowA = (const GLubyte *) srcRowA;
+ const GLubyte *rowB = (const GLubyte *) srcRowB;
+ GLubyte *dst = (GLubyte *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0xf;
+ const GLint rowAr1 = rowA[k] & 0xf;
+ const GLint rowBr0 = rowB[j] & 0xf;
+ const GLint rowBr1 = rowB[k] & 0xf;
+ const GLint rowAg0 = (rowA[j] >> 4) & 0xf;
+ const GLint rowAg1 = (rowA[k] >> 4) & 0xf;
+ const GLint rowBg0 = (rowB[j] >> 4) & 0xf;
+ const GLint rowBg1 = (rowB[k] >> 4) & 0xf;
+ const GLint r = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint g = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ dst[i] = (g << 4) | r;
+ }
+ }
+
+ else {
+ _mesa_problem(NULL, "bad format in do_row()");
+ }
+}
+
+
+/**
+ * Average together four rows of a source image to produce a single new
+ * row in the dest image. It's legal for the two source rows to point
+ * to the same data. The source width must be equal to either the
+ * dest width or two times the dest width.
+ *
+ * \param datatype GL pixel type \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT,
+ * \c GL_FLOAT, etc.
+ * \param comps number of components per pixel (1..4)
+ * \param srcWidth Width of a row in the source data
+ * \param srcRowA Pointer to one of the rows of source data
+ * \param srcRowB Pointer to one of the rows of source data
+ * \param srcRowC Pointer to one of the rows of source data
+ * \param srcRowD Pointer to one of the rows of source data
+ * \param dstWidth Width of a row in the destination data
+ * \param srcRowA Pointer to the row of destination data
+ */
+static void
+do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth,
+ const GLvoid *srcRowA, const GLvoid *srcRowB,
+ const GLvoid *srcRowC, const GLvoid *srcRowD,
+ GLint dstWidth, GLvoid *dstRow)
+{
+ const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1;
+ const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2;
+ GLuint i, j, k;
+
+ ASSERT(comps >= 1);
+ ASSERT(comps <= 4);
+
+ if ((datatype == GL_UNSIGNED_BYTE) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLubyte, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ FILTER_3D(3);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLubyte, 3);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLubyte, 2);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLubyte, 1);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ }
+ }
+ else if ((datatype == GL_BYTE) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLbyte, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D_SIGNED(0);
+ FILTER_3D_SIGNED(1);
+ FILTER_3D_SIGNED(2);
+ FILTER_3D_SIGNED(3);
+ }
+ }
+ else if ((datatype == GL_BYTE) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLbyte, 3);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D_SIGNED(0);
+ FILTER_3D_SIGNED(1);
+ FILTER_3D_SIGNED(2);
+ }
+ }
+ else if ((datatype == GL_BYTE) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLbyte, 2);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D_SIGNED(0);
+ FILTER_3D_SIGNED(1);
+ }
+ }
+ else if ((datatype == GL_BYTE) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLbyte, 1);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D_SIGNED(0);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLushort, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ FILTER_3D(3);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLushort, 3);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLushort, 2);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLushort, 1);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ }
+ }
+ else if ((datatype == GL_SHORT) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLshort, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ FILTER_3D(3);
+ }
+ }
+ else if ((datatype == GL_SHORT) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLshort, 3);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ FILTER_3D(2);
+ }
+ }
+ else if ((datatype == GL_SHORT) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLshort, 2);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ FILTER_3D(1);
+ }
+ }
+ else if ((datatype == GL_SHORT) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLshort, 1);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_3D(0);
+ }
+ }
+ else if ((datatype == GL_FLOAT) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLfloat, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_F_3D(0);
+ FILTER_F_3D(1);
+ FILTER_F_3D(2);
+ FILTER_F_3D(3);
+ }
+ }
+ else if ((datatype == GL_FLOAT) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLfloat, 3);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_F_3D(0);
+ FILTER_F_3D(1);
+ FILTER_F_3D(2);
+ }
+ }
+ else if ((datatype == GL_FLOAT) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLfloat, 2);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_F_3D(0);
+ FILTER_F_3D(1);
+ }
+ }
+ else if ((datatype == GL_FLOAT) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLfloat, 1);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_F_3D(0);
+ }
+ }
+ else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 4)) {
+ DECLARE_ROW_POINTERS(GLhalfARB, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_HF_3D(0);
+ FILTER_HF_3D(1);
+ FILTER_HF_3D(2);
+ FILTER_HF_3D(3);
+ }
+ }
+ else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 3)) {
+ DECLARE_ROW_POINTERS(GLhalfARB, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_HF_3D(0);
+ FILTER_HF_3D(1);
+ FILTER_HF_3D(2);
+ }
+ }
+ else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 2)) {
+ DECLARE_ROW_POINTERS(GLhalfARB, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_HF_3D(0);
+ FILTER_HF_3D(1);
+ }
+ }
+ else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 1)) {
+ DECLARE_ROW_POINTERS(GLhalfARB, 4);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ FILTER_HF_3D(0);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_INT) && (comps == 1)) {
+ const GLuint *rowA = (const GLuint *) srcRowA;
+ const GLuint *rowB = (const GLuint *) srcRowB;
+ const GLuint *rowC = (const GLuint *) srcRowC;
+ const GLuint *rowD = (const GLuint *) srcRowD;
+ GLfloat *dst = (GLfloat *) dstRow;
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const uint64_t tmp = (((uint64_t) rowA[j] + (uint64_t) rowA[k])
+ + ((uint64_t) rowB[j] + (uint64_t) rowB[k])
+ + ((uint64_t) rowC[j] + (uint64_t) rowC[k])
+ + ((uint64_t) rowD[j] + (uint64_t) rowD[k]));
+ dst[i] = (GLfloat)((double) tmp * 0.125);
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT_5_6_5) && (comps == 3)) {
+ DECLARE_ROW_POINTERS0(GLushort);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x1f;
+ const GLint rowAr1 = rowA[k] & 0x1f;
+ const GLint rowBr0 = rowB[j] & 0x1f;
+ const GLint rowBr1 = rowB[k] & 0x1f;
+ const GLint rowCr0 = rowC[j] & 0x1f;
+ const GLint rowCr1 = rowC[k] & 0x1f;
+ const GLint rowDr0 = rowD[j] & 0x1f;
+ const GLint rowDr1 = rowD[k] & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 5) & 0x3f;
+ const GLint rowAg1 = (rowA[k] >> 5) & 0x3f;
+ const GLint rowBg0 = (rowB[j] >> 5) & 0x3f;
+ const GLint rowBg1 = (rowB[k] >> 5) & 0x3f;
+ const GLint rowCg0 = (rowC[j] >> 5) & 0x3f;
+ const GLint rowCg1 = (rowC[k] >> 5) & 0x3f;
+ const GLint rowDg0 = (rowD[j] >> 5) & 0x3f;
+ const GLint rowDg1 = (rowD[k] >> 5) & 0x3f;
+ const GLint rowAb0 = (rowA[j] >> 11) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 11) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 11) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 11) & 0x1f;
+ const GLint rowCb0 = (rowC[j] >> 11) & 0x1f;
+ const GLint rowCb1 = (rowC[k] >> 11) & 0x1f;
+ const GLint rowDb0 = (rowD[j] >> 11) & 0x1f;
+ const GLint rowDb1 = (rowD[k] >> 11) & 0x1f;
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
+ rowCb0, rowCb1, rowDb0, rowDb1);
+ dst[i] = (b << 11) | (g << 5) | r;
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT_4_4_4_4) && (comps == 4)) {
+ DECLARE_ROW_POINTERS0(GLushort);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0xf;
+ const GLint rowAr1 = rowA[k] & 0xf;
+ const GLint rowBr0 = rowB[j] & 0xf;
+ const GLint rowBr1 = rowB[k] & 0xf;
+ const GLint rowCr0 = rowC[j] & 0xf;
+ const GLint rowCr1 = rowC[k] & 0xf;
+ const GLint rowDr0 = rowD[j] & 0xf;
+ const GLint rowDr1 = rowD[k] & 0xf;
+ const GLint rowAg0 = (rowA[j] >> 4) & 0xf;
+ const GLint rowAg1 = (rowA[k] >> 4) & 0xf;
+ const GLint rowBg0 = (rowB[j] >> 4) & 0xf;
+ const GLint rowBg1 = (rowB[k] >> 4) & 0xf;
+ const GLint rowCg0 = (rowC[j] >> 4) & 0xf;
+ const GLint rowCg1 = (rowC[k] >> 4) & 0xf;
+ const GLint rowDg0 = (rowD[j] >> 4) & 0xf;
+ const GLint rowDg1 = (rowD[k] >> 4) & 0xf;
+ const GLint rowAb0 = (rowA[j] >> 8) & 0xf;
+ const GLint rowAb1 = (rowA[k] >> 8) & 0xf;
+ const GLint rowBb0 = (rowB[j] >> 8) & 0xf;
+ const GLint rowBb1 = (rowB[k] >> 8) & 0xf;
+ const GLint rowCb0 = (rowC[j] >> 8) & 0xf;
+ const GLint rowCb1 = (rowC[k] >> 8) & 0xf;
+ const GLint rowDb0 = (rowD[j] >> 8) & 0xf;
+ const GLint rowDb1 = (rowD[k] >> 8) & 0xf;
+ const GLint rowAa0 = (rowA[j] >> 12) & 0xf;
+ const GLint rowAa1 = (rowA[k] >> 12) & 0xf;
+ const GLint rowBa0 = (rowB[j] >> 12) & 0xf;
+ const GLint rowBa1 = (rowB[k] >> 12) & 0xf;
+ const GLint rowCa0 = (rowC[j] >> 12) & 0xf;
+ const GLint rowCa1 = (rowC[k] >> 12) & 0xf;
+ const GLint rowDa0 = (rowD[j] >> 12) & 0xf;
+ const GLint rowDa1 = (rowD[k] >> 12) & 0xf;
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
+ rowCb0, rowCb1, rowDb0, rowDb1);
+ const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
+ rowCa0, rowCa1, rowDa0, rowDa1);
+
+ dst[i] = (a << 12) | (b << 8) | (g << 4) | r;
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV) && (comps == 4)) {
+ DECLARE_ROW_POINTERS0(GLushort);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x1f;
+ const GLint rowAr1 = rowA[k] & 0x1f;
+ const GLint rowBr0 = rowB[j] & 0x1f;
+ const GLint rowBr1 = rowB[k] & 0x1f;
+ const GLint rowCr0 = rowC[j] & 0x1f;
+ const GLint rowCr1 = rowC[k] & 0x1f;
+ const GLint rowDr0 = rowD[j] & 0x1f;
+ const GLint rowDr1 = rowD[k] & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 5) & 0x1f;
+ const GLint rowAg1 = (rowA[k] >> 5) & 0x1f;
+ const GLint rowBg0 = (rowB[j] >> 5) & 0x1f;
+ const GLint rowBg1 = (rowB[k] >> 5) & 0x1f;
+ const GLint rowCg0 = (rowC[j] >> 5) & 0x1f;
+ const GLint rowCg1 = (rowC[k] >> 5) & 0x1f;
+ const GLint rowDg0 = (rowD[j] >> 5) & 0x1f;
+ const GLint rowDg1 = (rowD[k] >> 5) & 0x1f;
+ const GLint rowAb0 = (rowA[j] >> 10) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 10) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 10) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 10) & 0x1f;
+ const GLint rowCb0 = (rowC[j] >> 10) & 0x1f;
+ const GLint rowCb1 = (rowC[k] >> 10) & 0x1f;
+ const GLint rowDb0 = (rowD[j] >> 10) & 0x1f;
+ const GLint rowDb1 = (rowD[k] >> 10) & 0x1f;
+ const GLint rowAa0 = (rowA[j] >> 15) & 0x1;
+ const GLint rowAa1 = (rowA[k] >> 15) & 0x1;
+ const GLint rowBa0 = (rowB[j] >> 15) & 0x1;
+ const GLint rowBa1 = (rowB[k] >> 15) & 0x1;
+ const GLint rowCa0 = (rowC[j] >> 15) & 0x1;
+ const GLint rowCa1 = (rowC[k] >> 15) & 0x1;
+ const GLint rowDa0 = (rowD[j] >> 15) & 0x1;
+ const GLint rowDa1 = (rowD[k] >> 15) & 0x1;
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
+ rowCb0, rowCb1, rowDb0, rowDb1);
+ const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
+ rowCa0, rowCa1, rowDa0, rowDa1);
+
+ dst[i] = (a << 15) | (b << 10) | (g << 5) | r;
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_SHORT_5_5_5_1) && (comps == 4)) {
+ DECLARE_ROW_POINTERS0(GLushort);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = (rowA[j] >> 11) & 0x1f;
+ const GLint rowAr1 = (rowA[k] >> 11) & 0x1f;
+ const GLint rowBr0 = (rowB[j] >> 11) & 0x1f;
+ const GLint rowBr1 = (rowB[k] >> 11) & 0x1f;
+ const GLint rowCr0 = (rowC[j] >> 11) & 0x1f;
+ const GLint rowCr1 = (rowC[k] >> 11) & 0x1f;
+ const GLint rowDr0 = (rowD[j] >> 11) & 0x1f;
+ const GLint rowDr1 = (rowD[k] >> 11) & 0x1f;
+ const GLint rowAg0 = (rowA[j] >> 6) & 0x1f;
+ const GLint rowAg1 = (rowA[k] >> 6) & 0x1f;
+ const GLint rowBg0 = (rowB[j] >> 6) & 0x1f;
+ const GLint rowBg1 = (rowB[k] >> 6) & 0x1f;
+ const GLint rowCg0 = (rowC[j] >> 6) & 0x1f;
+ const GLint rowCg1 = (rowC[k] >> 6) & 0x1f;
+ const GLint rowDg0 = (rowD[j] >> 6) & 0x1f;
+ const GLint rowDg1 = (rowD[k] >> 6) & 0x1f;
+ const GLint rowAb0 = (rowA[j] >> 1) & 0x1f;
+ const GLint rowAb1 = (rowA[k] >> 1) & 0x1f;
+ const GLint rowBb0 = (rowB[j] >> 1) & 0x1f;
+ const GLint rowBb1 = (rowB[k] >> 1) & 0x1f;
+ const GLint rowCb0 = (rowC[j] >> 1) & 0x1f;
+ const GLint rowCb1 = (rowC[k] >> 1) & 0x1f;
+ const GLint rowDb0 = (rowD[j] >> 1) & 0x1f;
+ const GLint rowDb1 = (rowD[k] >> 1) & 0x1f;
+ const GLint rowAa0 = (rowA[j] & 0x1);
+ const GLint rowAa1 = (rowA[k] & 0x1);
+ const GLint rowBa0 = (rowB[j] & 0x1);
+ const GLint rowBa1 = (rowB[k] & 0x1);
+ const GLint rowCa0 = (rowC[j] & 0x1);
+ const GLint rowCa1 = (rowC[k] & 0x1);
+ const GLint rowDa0 = (rowD[j] & 0x1);
+ const GLint rowDa1 = (rowD[k] & 0x1);
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
+ rowCb0, rowCb1, rowDb0, rowDb1);
+ const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
+ rowCa0, rowCa1, rowDa0, rowDa1);
+
+ dst[i] = (r << 11) | (g << 6) | (b << 1) | a;
+ }
+ }
+ else if ((datatype == GL_UNSIGNED_BYTE_3_3_2) && (comps == 3)) {
+ DECLARE_ROW_POINTERS0(GLubyte);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0x3;
+ const GLint rowAr1 = rowA[k] & 0x3;
+ const GLint rowBr0 = rowB[j] & 0x3;
+ const GLint rowBr1 = rowB[k] & 0x3;
+ const GLint rowCr0 = rowC[j] & 0x3;
+ const GLint rowCr1 = rowC[k] & 0x3;
+ const GLint rowDr0 = rowD[j] & 0x3;
+ const GLint rowDr1 = rowD[k] & 0x3;
+ const GLint rowAg0 = (rowA[j] >> 2) & 0x7;
+ const GLint rowAg1 = (rowA[k] >> 2) & 0x7;
+ const GLint rowBg0 = (rowB[j] >> 2) & 0x7;
+ const GLint rowBg1 = (rowB[k] >> 2) & 0x7;
+ const GLint rowCg0 = (rowC[j] >> 2) & 0x7;
+ const GLint rowCg1 = (rowC[k] >> 2) & 0x7;
+ const GLint rowDg0 = (rowD[j] >> 2) & 0x7;
+ const GLint rowDg1 = (rowD[k] >> 2) & 0x7;
+ const GLint rowAb0 = (rowA[j] >> 5) & 0x7;
+ const GLint rowAb1 = (rowA[k] >> 5) & 0x7;
+ const GLint rowBb0 = (rowB[j] >> 5) & 0x7;
+ const GLint rowBb1 = (rowB[k] >> 5) & 0x7;
+ const GLint rowCb0 = (rowC[j] >> 5) & 0x7;
+ const GLint rowCb1 = (rowC[k] >> 5) & 0x7;
+ const GLint rowDb0 = (rowD[j] >> 5) & 0x7;
+ const GLint rowDb1 = (rowD[k] >> 5) & 0x7;
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
+ rowCb0, rowCb1, rowDb0, rowDb1);
+ dst[i] = (b << 5) | (g << 2) | r;
+ }
+ }
+ else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) {
+ DECLARE_ROW_POINTERS0(GLubyte);
+
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ const GLint rowAr0 = rowA[j] & 0xf;
+ const GLint rowAr1 = rowA[k] & 0xf;
+ const GLint rowBr0 = rowB[j] & 0xf;
+ const GLint rowBr1 = rowB[k] & 0xf;
+ const GLint rowCr0 = rowC[j] & 0xf;
+ const GLint rowCr1 = rowC[k] & 0xf;
+ const GLint rowDr0 = rowD[j] & 0xf;
+ const GLint rowDr1 = rowD[k] & 0xf;
+ const GLint rowAg0 = (rowA[j] >> 4) & 0xf;
+ const GLint rowAg1 = (rowA[k] >> 4) & 0xf;
+ const GLint rowBg0 = (rowB[j] >> 4) & 0xf;
+ const GLint rowBg1 = (rowB[k] >> 4) & 0xf;
+ const GLint rowCg0 = (rowC[j] >> 4) & 0xf;
+ const GLint rowCg1 = (rowC[k] >> 4) & 0xf;
+ const GLint rowDg0 = (rowD[j] >> 4) & 0xf;
+ const GLint rowDg1 = (rowD[k] >> 4) & 0xf;
+ const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
+ rowCr0, rowCr1, rowDr0, rowDr1);
+ const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
+ rowCg0, rowCg1, rowDg0, rowDg1);
+ dst[i] = (g << 4) | r;
+ }
+ }
+ else {
+ _mesa_problem(NULL, "bad format in do_row()");
+ }
+}
+
+
+/*
+ * These functions generate a 1/2-size mipmap image from a source image.
+ * Texture borders are handled by copying or averaging the source image's
+ * border texels, depending on the scale-down factor.
+ */
+
+static void
+make_1d_mipmap(GLenum datatype, GLuint comps, GLint border,
+ GLint srcWidth, const GLubyte *srcPtr,
+ GLint dstWidth, GLubyte *dstPtr)
+{
+ const GLint bpt = bytes_per_pixel(datatype, comps);
+ const GLubyte *src;
+ GLubyte *dst;
+
+ /* skip the border pixel, if any */
+ src = srcPtr + border * bpt;
+ dst = dstPtr + border * bpt;
+
+ /* we just duplicate the input row, kind of hack, saves code */
+ do_row(datatype, comps, srcWidth - 2 * border, src, src,
+ dstWidth - 2 * border, dst);
+
+ if (border) {
+ /* copy left-most pixel from source */
+ assert(dstPtr);
+ assert(srcPtr);
+ memcpy(dstPtr, srcPtr, bpt);
+ /* copy right-most pixel from source */
+ memcpy(dstPtr + (dstWidth - 1) * bpt,
+ srcPtr + (srcWidth - 1) * bpt,
+ bpt);
+ }
+}
+
+
+static void
+make_2d_mipmap(GLenum datatype, GLuint comps, GLint border,
+ GLint srcWidth, GLint srcHeight,
+ const GLubyte *srcPtr, GLint srcRowStride,
+ GLint dstWidth, GLint dstHeight,
+ GLubyte *dstPtr, GLint dstRowStride)
+{
+ const GLint bpt = bytes_per_pixel(datatype, comps);
+ const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */
+ const GLint dstWidthNB = dstWidth - 2 * border;
+ const GLint dstHeightNB = dstHeight - 2 * border;
+ const GLint srcRowBytes = bpt * srcRowStride;
+ const GLint dstRowBytes = bpt * dstRowStride;
+ const GLubyte *srcA, *srcB;
+ GLubyte *dst;
+ GLint row, srcRowStep;
+
+ /* Compute src and dst pointers, skipping any border */
+ srcA = srcPtr + border * ((srcWidth + 1) * bpt);
+ if (srcHeight > 1 && srcHeight > dstHeight) {
+ /* sample from two source rows */
+ srcB = srcA + srcRowBytes;
+ srcRowStep = 2;
+ }
+ else {
+ /* sample from one source row */
+ srcB = srcA;
+ srcRowStep = 1;
+ }
+
+ dst = dstPtr + border * ((dstWidth + 1) * bpt);
+
+ for (row = 0; row < dstHeightNB; row++) {
+ do_row(datatype, comps, srcWidthNB, srcA, srcB,
+ dstWidthNB, dst);
+ srcA += srcRowStep * srcRowBytes;
+ srcB += srcRowStep * srcRowBytes;
+ dst += dstRowBytes;
+ }
+
+ /* This is ugly but probably won't be used much */
+ if (border > 0) {
+ /* fill in dest border */
+ /* lower-left border pixel */
+ assert(dstPtr);
+ assert(srcPtr);
+ memcpy(dstPtr, srcPtr, bpt);
+ /* lower-right border pixel */
+ memcpy(dstPtr + (dstWidth - 1) * bpt,
+ srcPtr + (srcWidth - 1) * bpt, bpt);
+ /* upper-left border pixel */
+ memcpy(dstPtr + dstWidth * (dstHeight - 1) * bpt,
+ srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt);
+ /* upper-right border pixel */
+ memcpy(dstPtr + (dstWidth * dstHeight - 1) * bpt,
+ srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt);
+ /* lower border */
+ do_row(datatype, comps, srcWidthNB,
+ srcPtr + bpt,
+ srcPtr + bpt,
+ dstWidthNB, dstPtr + bpt);
+ /* upper border */
+ do_row(datatype, comps, srcWidthNB,
+ srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt,
+ srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt,
+ dstWidthNB,
+ dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt);
+ /* left and right borders */
+ if (srcHeight == dstHeight) {
+ /* copy border pixel from src to dst */
+ for (row = 1; row < srcHeight; row++) {
+ memcpy(dstPtr + dstWidth * row * bpt,
+ srcPtr + srcWidth * row * bpt, bpt);
+ memcpy(dstPtr + (dstWidth * row + dstWidth - 1) * bpt,
+ srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt);
+ }
+ }
+ else {
+ /* average two src pixels each dest pixel */
+ for (row = 0; row < dstHeightNB; row += 2) {
+ do_row(datatype, comps, 1,
+ srcPtr + (srcWidth * (row * 2 + 1)) * bpt,
+ srcPtr + (srcWidth * (row * 2 + 2)) * bpt,
+ 1, dstPtr + (dstWidth * row + 1) * bpt);
+ do_row(datatype, comps, 1,
+ srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt,
+ srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt,
+ 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt);
+ }
+ }
+ }
+}
+
+
+static void
+make_3d_mipmap(GLenum datatype, GLuint comps, GLint border,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ const GLubyte *srcPtr, GLint srcRowStride,
+ GLint dstWidth, GLint dstHeight, GLint dstDepth,
+ GLubyte *dstPtr, GLint dstRowStride)
+{
+ const GLint bpt = bytes_per_pixel(datatype, comps);
+ const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */
+ const GLint srcDepthNB = srcDepth - 2 * border;
+ const GLint dstWidthNB = dstWidth - 2 * border;
+ const GLint dstHeightNB = dstHeight - 2 * border;
+ const GLint dstDepthNB = dstDepth - 2 * border;
+ GLint img, row;
+ GLint bytesPerSrcImage, bytesPerDstImage;
+ GLint bytesPerSrcRow, bytesPerDstRow;
+ GLint srcImageOffset, srcRowOffset;
+
+ (void) srcDepthNB; /* silence warnings */
+
+
+ bytesPerSrcImage = srcWidth * srcHeight * bpt;
+ bytesPerDstImage = dstWidth * dstHeight * bpt;
+
+ bytesPerSrcRow = srcWidth * bpt;
+ bytesPerDstRow = dstWidth * bpt;
+
+ /* Offset between adjacent src images to be averaged together */
+ srcImageOffset = (srcDepth == dstDepth) ? 0 : bytesPerSrcImage;
+
+ /* Offset between adjacent src rows to be averaged together */
+ srcRowOffset = (srcHeight == dstHeight) ? 0 : srcWidth * bpt;
+
+ /*
+ * Need to average together up to 8 src pixels for each dest pixel.
+ * Break that down into 3 operations:
+ * 1. take two rows from source image and average them together.
+ * 2. take two rows from next source image and average them together.
+ * 3. take the two averaged rows and average them for the final dst row.
+ */
+
+ /*
+ printf("mip3d %d x %d x %d -> %d x %d x %d\n",
+ srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth);
+ */
+
+ for (img = 0; img < dstDepthNB; img++) {
+ /* first source image pointer, skipping border */
+ const GLubyte *imgSrcA = srcPtr
+ + (bytesPerSrcImage + bytesPerSrcRow + border) * bpt * border
+ + img * (bytesPerSrcImage + srcImageOffset);
+ /* second source image pointer, skipping border */
+ const GLubyte *imgSrcB = imgSrcA + srcImageOffset;
+ /* address of the dest image, skipping border */
+ GLubyte *imgDst = dstPtr
+ + (bytesPerDstImage + bytesPerDstRow + border) * bpt * border
+ + img * bytesPerDstImage;
+
+ /* setup the four source row pointers and the dest row pointer */
+ const GLubyte *srcImgARowA = imgSrcA;
+ const GLubyte *srcImgARowB = imgSrcA + srcRowOffset;
+ const GLubyte *srcImgBRowA = imgSrcB;
+ const GLubyte *srcImgBRowB = imgSrcB + srcRowOffset;
+ GLubyte *dstImgRow = imgDst;
+
+ for (row = 0; row < dstHeightNB; row++) {
+ do_row_3D(datatype, comps, srcWidthNB,
+ srcImgARowA, srcImgARowB,
+ srcImgBRowA, srcImgBRowB,
+ dstWidthNB, dstImgRow);
+
+ /* advance to next rows */
+ srcImgARowA += bytesPerSrcRow + srcRowOffset;
+ srcImgARowB += bytesPerSrcRow + srcRowOffset;
+ srcImgBRowA += bytesPerSrcRow + srcRowOffset;
+ srcImgBRowB += bytesPerSrcRow + srcRowOffset;
+ dstImgRow += bytesPerDstRow;
+ }
+ }
+
+
+ /* Luckily we can leverage the make_2d_mipmap() function here! */
+ if (border > 0) {
+ /* do front border image */
+ make_2d_mipmap(datatype, comps, 1, srcWidth, srcHeight, srcPtr, srcRowStride,
+ dstWidth, dstHeight, dstPtr, dstRowStride);
+ /* do back border image */
+ make_2d_mipmap(datatype, comps, 1, srcWidth, srcHeight,
+ srcPtr + bytesPerSrcImage * (srcDepth - 1), srcRowStride,
+ dstWidth, dstHeight,
+ dstPtr + bytesPerDstImage * (dstDepth - 1), dstRowStride);
+ /* do four remaining border edges that span the image slices */
+ if (srcDepth == dstDepth) {
+ /* just copy border pixels from src to dst */
+ for (img = 0; img < dstDepthNB; img++) {
+ const GLubyte *src;
+ GLubyte *dst;
+
+ /* do border along [img][row=0][col=0] */
+ src = srcPtr + (img + 1) * bytesPerSrcImage;
+ dst = dstPtr + (img + 1) * bytesPerDstImage;
+ memcpy(dst, src, bpt);
+
+ /* do border along [img][row=dstHeight-1][col=0] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (srcHeight - 1) * bytesPerSrcRow;
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (dstHeight - 1) * bytesPerDstRow;
+ memcpy(dst, src, bpt);
+
+ /* do border along [img][row=0][col=dstWidth-1] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (srcWidth - 1) * bpt;
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (dstWidth - 1) * bpt;
+ memcpy(dst, src, bpt);
+
+ /* do border along [img][row=dstHeight-1][col=dstWidth-1] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (bytesPerSrcImage - bpt);
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (bytesPerDstImage - bpt);
+ memcpy(dst, src, bpt);
+ }
+ }
+ else {
+ /* average border pixels from adjacent src image pairs */
+ ASSERT(srcDepthNB == 2 * dstDepthNB);
+ for (img = 0; img < dstDepthNB; img++) {
+ const GLubyte *src;
+ GLubyte *dst;
+
+ /* do border along [img][row=0][col=0] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage;
+ dst = dstPtr + (img + 1) * bytesPerDstImage;
+ do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst);
+
+ /* do border along [img][row=dstHeight-1][col=0] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (srcHeight - 1) * bytesPerSrcRow;
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (dstHeight - 1) * bytesPerDstRow;
+ do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst);
+
+ /* do border along [img][row=0][col=dstWidth-1] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (srcWidth - 1) * bpt;
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (dstWidth - 1) * bpt;
+ do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst);
+
+ /* do border along [img][row=dstHeight-1][col=dstWidth-1] */
+ src = srcPtr + (img * 2 + 1) * bytesPerSrcImage
+ + (bytesPerSrcImage - bpt);
+ dst = dstPtr + (img + 1) * bytesPerDstImage
+ + (bytesPerDstImage - bpt);
+ do_row(datatype, comps, 1, src, src + srcImageOffset, 1, dst);
+ }
+ }
+ }
+}
+
+
+static void
+make_1d_stack_mipmap(GLenum datatype, GLuint comps, GLint border,
+ GLint srcWidth, const GLubyte *srcPtr, GLuint srcRowStride,
+ GLint dstWidth, GLint dstHeight,
+ GLubyte *dstPtr, GLuint dstRowStride )
+{
+ const GLint bpt = bytes_per_pixel(datatype, comps);
+ const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */
+ const GLint dstWidthNB = dstWidth - 2 * border;
+ const GLint dstHeightNB = dstHeight - 2 * border;
+ const GLint srcRowBytes = bpt * srcRowStride;
+ const GLint dstRowBytes = bpt * dstRowStride;
+ const GLubyte *src;
+ GLubyte *dst;
+ GLint row;
+
+ /* Compute src and dst pointers, skipping any border */
+ src = srcPtr + border * ((srcWidth + 1) * bpt);
+ dst = dstPtr + border * ((dstWidth + 1) * bpt);
+
+ for (row = 0; row < dstHeightNB; row++) {
+ do_row(datatype, comps, srcWidthNB, src, src,
+ dstWidthNB, dst);
+ src += srcRowBytes;
+ dst += dstRowBytes;
+ }
+
+ if (border) {
+ /* copy left-most pixel from source */
+ assert(dstPtr);
+ assert(srcPtr);
+ memcpy(dstPtr, srcPtr, bpt);
+ /* copy right-most pixel from source */
+ memcpy(dstPtr + (dstWidth - 1) * bpt,
+ srcPtr + (srcWidth - 1) * bpt,
+ bpt);
+ }
+}
+
+
+/**
+ * \bug
+ * There is quite a bit of refactoring that could be done with this function
+ * and \c make_2d_mipmap.
+ */
+static void
+make_2d_stack_mipmap(GLenum datatype, GLuint comps, GLint border,
+ GLint srcWidth, GLint srcHeight,
+ const GLubyte *srcPtr, GLint srcRowStride,
+ GLint dstWidth, GLint dstHeight, GLint dstDepth,
+ GLubyte *dstPtr, GLint dstRowStride)
+{
+ const GLint bpt = bytes_per_pixel(datatype, comps);
+ const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */
+ const GLint dstWidthNB = dstWidth - 2 * border;
+ const GLint dstHeightNB = dstHeight - 2 * border;
+ const GLint dstDepthNB = dstDepth - 2 * border;
+ const GLint srcRowBytes = bpt * srcRowStride;
+ const GLint dstRowBytes = bpt * dstRowStride;
+ const GLubyte *srcA, *srcB;
+ GLubyte *dst;
+ GLint layer;
+ GLint row;
+
+ /* Compute src and dst pointers, skipping any border */
+ srcA = srcPtr + border * ((srcWidth + 1) * bpt);
+ if (srcHeight > 1)
+ srcB = srcA + srcRowBytes;
+ else
+ srcB = srcA;
+ dst = dstPtr + border * ((dstWidth + 1) * bpt);
+
+ for (layer = 0; layer < dstDepthNB; layer++) {
+ for (row = 0; row < dstHeightNB; row++) {
+ do_row(datatype, comps, srcWidthNB, srcA, srcB,
+ dstWidthNB, dst);
+ srcA += 2 * srcRowBytes;
+ srcB += 2 * srcRowBytes;
+ dst += dstRowBytes;
+ }
+
+ /* This is ugly but probably won't be used much */
+ if (border > 0) {
+ /* fill in dest border */
+ /* lower-left border pixel */
+ assert(dstPtr);
+ assert(srcPtr);
+ memcpy(dstPtr, srcPtr, bpt);
+ /* lower-right border pixel */
+ memcpy(dstPtr + (dstWidth - 1) * bpt,
+ srcPtr + (srcWidth - 1) * bpt, bpt);
+ /* upper-left border pixel */
+ memcpy(dstPtr + dstWidth * (dstHeight - 1) * bpt,
+ srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt);
+ /* upper-right border pixel */
+ memcpy(dstPtr + (dstWidth * dstHeight - 1) * bpt,
+ srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt);
+ /* lower border */
+ do_row(datatype, comps, srcWidthNB,
+ srcPtr + bpt,
+ srcPtr + bpt,
+ dstWidthNB, dstPtr + bpt);
+ /* upper border */
+ do_row(datatype, comps, srcWidthNB,
+ srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt,
+ srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt,
+ dstWidthNB,
+ dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt);
+ /* left and right borders */
+ if (srcHeight == dstHeight) {
+ /* copy border pixel from src to dst */
+ for (row = 1; row < srcHeight; row++) {
+ memcpy(dstPtr + dstWidth * row * bpt,
+ srcPtr + srcWidth * row * bpt, bpt);
+ memcpy(dstPtr + (dstWidth * row + dstWidth - 1) * bpt,
+ srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt);
+ }
+ }
+ else {
+ /* average two src pixels each dest pixel */
+ for (row = 0; row < dstHeightNB; row += 2) {
+ do_row(datatype, comps, 1,
+ srcPtr + (srcWidth * (row * 2 + 1)) * bpt,
+ srcPtr + (srcWidth * (row * 2 + 2)) * bpt,
+ 1, dstPtr + (dstWidth * row + 1) * bpt);
+ do_row(datatype, comps, 1,
+ srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt,
+ srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt,
+ 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt);
+ }
+ }
+ }
+ }
+}
+
+
+/**
+ * Down-sample a texture image to produce the next lower mipmap level.
+ * \param comps components per texel (1, 2, 3 or 4)
+ * \param srcRowStride stride between source rows, in texels
+ * \param dstRowStride stride between destination rows, in texels
+ */
+void
+_mesa_generate_mipmap_level(GLenum target,
+ GLenum datatype, GLuint comps,
+ GLint border,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ const GLubyte *srcData,
+ GLint srcRowStride,
+ GLint dstWidth, GLint dstHeight, GLint dstDepth,
+ GLubyte *dstData,
+ GLint dstRowStride)
+{
+ /*
+ * We use simple 2x2 averaging to compute the next mipmap level.
+ */
+ switch (target) {
+ case GL_TEXTURE_1D:
+ make_1d_mipmap(datatype, comps, border,
+ srcWidth, srcData,
+ dstWidth, dstData);
+ break;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ make_2d_mipmap(datatype, comps, border,
+ srcWidth, srcHeight, srcData, srcRowStride,
+ dstWidth, dstHeight, dstData, dstRowStride);
+ break;
+ case GL_TEXTURE_3D:
+ make_3d_mipmap(datatype, comps, border,
+ srcWidth, srcHeight, srcDepth,
+ srcData, srcRowStride,
+ dstWidth, dstHeight, dstDepth,
+ dstData, dstRowStride);
+ break;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ make_1d_stack_mipmap(datatype, comps, border,
+ srcWidth, srcData, srcRowStride,
+ dstWidth, dstHeight,
+ dstData, dstRowStride);
+ break;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ make_2d_stack_mipmap(datatype, comps, border,
+ srcWidth, srcHeight,
+ srcData, srcRowStride,
+ dstWidth, dstHeight,
+ dstDepth, dstData, dstRowStride);
+ break;
+ case GL_TEXTURE_RECTANGLE_NV:
+ /* no mipmaps, do nothing */
+ break;
+ default:
+ _mesa_problem(NULL, "bad dimensions in _mesa_generate_mipmaps");
+ return;
+ }
+}
+
+
+/**
+ * compute next (level+1) image size
+ * \return GL_FALSE if no smaller size can be generated (eg. src is 1x1x1 size)
+ */
+static GLboolean
+next_mipmap_level_size(GLenum target, GLint border,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLint *dstWidth, GLint *dstHeight, GLint *dstDepth)
+{
+ if (srcWidth - 2 * border > 1) {
+ *dstWidth = (srcWidth - 2 * border) / 2 + 2 * border;
+ }
+ else {
+ *dstWidth = srcWidth; /* can't go smaller */
+ }
+
+ if ((srcHeight - 2 * border > 1) &&
+ (target != GL_TEXTURE_1D_ARRAY_EXT)) {
+ *dstHeight = (srcHeight - 2 * border) / 2 + 2 * border;
+ }
+ else {
+ *dstHeight = srcHeight; /* can't go smaller */
+ }
+
+ if ((srcDepth - 2 * border > 1) &&
+ (target != GL_TEXTURE_2D_ARRAY_EXT)) {
+ *dstDepth = (srcDepth - 2 * border) / 2 + 2 * border;
+ }
+ else {
+ *dstDepth = srcDepth; /* can't go smaller */
+ }
+
+ if (*dstWidth == srcWidth &&
+ *dstHeight == srcHeight &&
+ *dstDepth == srcDepth) {
+ return GL_FALSE;
+ }
+ else {
+ return GL_TRUE;
+ }
+}
+
+
+
+
+/**
+ * Automatic mipmap generation.
+ * This is the fallback/default function for ctx->Driver.GenerateMipmap().
+ * Generate a complete set of mipmaps from texObj's BaseLevel image.
+ * Stop at texObj's MaxLevel or when we get to the 1x1 texture.
+ * For cube maps, target will be one of
+ * GL_TEXTURE_CUBE_MAP_POSITIVE/NEGATIVE_X/Y/Z; never GL_TEXTURE_CUBE_MAP.
+ */
+void
+_mesa_generate_mipmap(struct gl_context *ctx, GLenum target,
+ struct gl_texture_object *texObj)
+{
+ const struct gl_texture_image *srcImage;
+ gl_format convertFormat;
+ const GLubyte *srcData = NULL;
+ GLubyte *dstData = NULL;
+ GLint level, maxLevels;
+ GLenum datatype;
+ GLuint comps;
+
+ ASSERT(texObj);
+ srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel);
+ ASSERT(srcImage);
+
+ maxLevels = _mesa_max_texture_levels(ctx, texObj->Target);
+ ASSERT(maxLevels > 0); /* bad target */
+
+ /* Find convertFormat - the format that do_row() will process */
+
+ if (_mesa_is_format_compressed(srcImage->TexFormat)) {
+ /* setup for compressed textures - need to allocate temporary
+ * image buffers to hold uncompressed images.
+ */
+ GLuint row;
+ GLint components, size;
+ GLchan *dst;
+
+ assert(texObj->Target == GL_TEXTURE_2D ||
+ texObj->Target == GL_TEXTURE_CUBE_MAP_ARB);
+
+ if (srcImage->_BaseFormat == GL_RGB) {
+ convertFormat = MESA_FORMAT_RGB888;
+ components = 3;
+ } else if (srcImage->_BaseFormat == GL_RED) {
+ convertFormat = MESA_FORMAT_R8;
+ components = 1;
+ } else if (srcImage->_BaseFormat == GL_RG) {
+ convertFormat = MESA_FORMAT_RG88;
+ components = 2;
+ } else if (srcImage->_BaseFormat == GL_RGBA) {
+ convertFormat = MESA_FORMAT_RGBA8888;
+ components = 4;
+ } else if (srcImage->_BaseFormat == GL_LUMINANCE) {
+ convertFormat = MESA_FORMAT_L8;
+ components = 1;
+ } else if (srcImage->_BaseFormat == GL_LUMINANCE_ALPHA) {
+ convertFormat = MESA_FORMAT_AL88;
+ components = 2;
+ } else {
+ _mesa_problem(ctx, "bad srcImage->_BaseFormat in _mesa_generate_mipmaps");
+ return;
+ }
+
+ /* allocate storage for uncompressed GL_RGB or GL_RGBA images */
+ size = _mesa_bytes_per_pixel(srcImage->_BaseFormat, CHAN_TYPE)
+ * srcImage->Width * srcImage->Height * srcImage->Depth + 20;
+ /* 20 extra bytes, just be safe when calling last FetchTexel */
+ srcData = (GLubyte *) malloc(size);
+ if (!srcData) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps");
+ return;
+ }
+ dstData = (GLubyte *) malloc(size / 2); /* 1/4 would probably be OK */
+ if (!dstData) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps");
+ free((void *) srcData);
+ return;
+ }
+
+ /* decompress base image here */
+ dst = (GLchan *) srcData;
+ for (row = 0; row < srcImage->Height; row++) {
+ GLuint col;
+ for (col = 0; col < srcImage->Width; col++) {
+ srcImage->FetchTexelc(srcImage, col, row, 0, dst);
+ dst += components;
+ }
+ }
+ }
+ else {
+ /* uncompressed */
+ convertFormat = srcImage->TexFormat;
+ }
+
+ _mesa_format_to_type_and_comps(convertFormat, &datatype, &comps);
+
+ for (level = texObj->BaseLevel; level < texObj->MaxLevel
+ && level < maxLevels - 1; level++) {
+ /* generate image[level+1] from image[level] */
+ const struct gl_texture_image *srcImage;
+ struct gl_texture_image *dstImage;
+ GLint srcWidth, srcHeight, srcDepth;
+ GLint dstWidth, dstHeight, dstDepth;
+ GLint border;
+ GLboolean nextLevel;
+
+ /* get src image parameters */
+ srcImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ ASSERT(srcImage);
+ srcWidth = srcImage->Width;
+ srcHeight = srcImage->Height;
+ srcDepth = srcImage->Depth;
+ border = srcImage->Border;
+
+ nextLevel = next_mipmap_level_size(target, border,
+ srcWidth, srcHeight, srcDepth,
+ &dstWidth, &dstHeight, &dstDepth);
+ if (!nextLevel) {
+ /* all done */
+ if (_mesa_is_format_compressed(srcImage->TexFormat)) {
+ free((void *) srcData);
+ free(dstData);
+ }
+ return;
+ }
+
+ /* get dest gl_texture_image */
+ dstImage = _mesa_get_tex_image(ctx, texObj, target, level + 1);
+ if (!dstImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
+ return;
+ }
+
+ /* Free old image data */
+ if (dstImage->Data)
+ ctx->Driver.FreeTexImageData(ctx, dstImage);
+
+ /* initialize new image */
+ _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,
+ dstDepth, border, srcImage->InternalFormat,
+ srcImage->TexFormat);
+ dstImage->DriverData = NULL;
+ dstImage->FetchTexelc = srcImage->FetchTexelc;
+ dstImage->FetchTexelf = srcImage->FetchTexelf;
+
+ /* Alloc new teximage data buffer */
+ {
+ GLuint size = _mesa_format_image_size(dstImage->TexFormat,
+ dstWidth, dstHeight, dstDepth);
+ dstImage->Data = _mesa_alloc_texmemory(size);
+ if (!dstImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
+ return;
+ }
+ }
+
+ /* Setup src and dest data pointers */
+ if (_mesa_is_format_compressed(dstImage->TexFormat)) {
+ /* srcData and dstData are already set */
+ ASSERT(srcData);
+ ASSERT(dstData);
+ }
+ else {
+ srcData = (const GLubyte *) srcImage->Data;
+ dstData = (GLubyte *) dstImage->Data;
+ }
+
+ ASSERT(dstImage->TexFormat);
+ ASSERT(dstImage->FetchTexelc);
+ ASSERT(dstImage->FetchTexelf);
+
+ _mesa_generate_mipmap_level(target, datatype, comps, border,
+ srcWidth, srcHeight, srcDepth,
+ srcData, srcImage->RowStride,
+ dstWidth, dstHeight, dstDepth,
+ dstData, dstImage->RowStride);
+
+
+ if (_mesa_is_format_compressed(dstImage->TexFormat)) {
+ GLubyte *temp;
+ /* compress image from dstData into dstImage->Data */
+ const GLenum srcFormat = _mesa_get_format_base_format(convertFormat);
+ GLint dstRowStride
+ = _mesa_format_row_stride(dstImage->TexFormat, dstWidth);
+ ASSERT(srcFormat == GL_RGB || srcFormat == GL_RGBA);
+
+ _mesa_texstore(ctx, 2, dstImage->_BaseFormat,
+ dstImage->TexFormat,
+ dstImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride, 0, /* strides */
+ dstWidth, dstHeight, 1, /* size */
+ srcFormat, CHAN_TYPE,
+ dstData, /* src data, actually */
+ &ctx->DefaultPacking);
+
+ /* swap src and dest pointers */
+ temp = (GLubyte *) srcData;
+ srcData = dstData;
+ dstData = temp;
+ }
+
+ } /* loop over mipmap levels */
+}
+
+
+/**
+ * Helper function for drivers which need to rescale texture images to
+ * certain aspect ratios.
+ * Nearest filtering only (for broken hardware that can't support
+ * all aspect ratios). This can be made a lot faster, but I don't
+ * really care enough...
+ */
+void
+_mesa_rescale_teximage2d(GLuint bytesPerPixel,
+ GLuint srcStrideInPixels,
+ GLuint dstRowStride,
+ GLint srcWidth, GLint srcHeight,
+ GLint dstWidth, GLint dstHeight,
+ const GLvoid *srcImage, GLvoid *dstImage)
+{
+ GLint row, col;
+
+#define INNER_LOOP( TYPE, HOP, WOP ) \
+ for ( row = 0 ; row < dstHeight ; row++ ) { \
+ GLint srcRow = row HOP hScale; \
+ for ( col = 0 ; col < dstWidth ; col++ ) { \
+ GLint srcCol = col WOP wScale; \
+ dst[col] = src[srcRow * srcStrideInPixels + srcCol]; \
+ } \
+ dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \
+ } \
+
+#define RESCALE_IMAGE( TYPE ) \
+do { \
+ const TYPE *src = (const TYPE *)srcImage; \
+ TYPE *dst = (TYPE *)dstImage; \
+ \
+ if ( srcHeight < dstHeight ) { \
+ const GLint hScale = dstHeight / srcHeight; \
+ if ( srcWidth < dstWidth ) { \
+ const GLint wScale = dstWidth / srcWidth; \
+ INNER_LOOP( TYPE, /, / ); \
+ } \
+ else { \
+ const GLint wScale = srcWidth / dstWidth; \
+ INNER_LOOP( TYPE, /, * ); \
+ } \
+ } \
+ else { \
+ const GLint hScale = srcHeight / dstHeight; \
+ if ( srcWidth < dstWidth ) { \
+ const GLint wScale = dstWidth / srcWidth; \
+ INNER_LOOP( TYPE, *, / ); \
+ } \
+ else { \
+ const GLint wScale = srcWidth / dstWidth; \
+ INNER_LOOP( TYPE, *, * ); \
+ } \
+ } \
+} while (0)
+
+ switch ( bytesPerPixel ) {
+ case 4:
+ RESCALE_IMAGE( GLuint );
+ break;
+
+ case 2:
+ RESCALE_IMAGE( GLushort );
+ break;
+
+ case 1:
+ RESCALE_IMAGE( GLubyte );
+ break;
+ default:
+ _mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d");
+ }
+}
+
+
+/**
+ * Upscale an image by replication, not (typical) stretching.
+ * We use this when the image width or height is less than a
+ * certain size (4, 8) and we need to upscale an image.
+ */
+void
+_mesa_upscale_teximage2d(GLsizei inWidth, GLsizei inHeight,
+ GLsizei outWidth, GLsizei outHeight,
+ GLint comps, const GLchan *src, GLint srcRowStride,
+ GLchan *dest )
+{
+ GLint i, j, k;
+
+ ASSERT(outWidth >= inWidth);
+ ASSERT(outHeight >= inHeight);
+#if 0
+ ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2);
+ ASSERT((outWidth & 3) == 0);
+ ASSERT((outHeight & 3) == 0);
+#endif
+
+ for (i = 0; i < outHeight; i++) {
+ const GLint ii = i % inHeight;
+ for (j = 0; j < outWidth; j++) {
+ const GLint jj = j % inWidth;
+ for (k = 0; k < comps; k++) {
+ dest[(i * outWidth + j) * comps + k]
+ = src[ii * srcRowStride + jj * comps + k];
+ }
+ }
+ }
+}
+
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h index 39577bb02..94e449ae8 100644 --- a/mesalib/src/mesa/main/mtypes.h +++ b/mesalib/src/mesa/main/mtypes.h @@ -1,3357 +1,3357 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file mtypes.h - * Main Mesa data structures. - * - * Please try to mark derived values with a leading underscore ('_'). - */ - -#ifndef MTYPES_H -#define MTYPES_H - - -#include "main/glheader.h" -#include "main/config.h" -#include "main/mfeatures.h" -#include "glapi/glapi.h" -#include "math/m_matrix.h" /* GLmatrix */ -#include "main/simple_list.h" /* struct simple_node */ -#include "main/formats.h" /* MESA_FORMAT_COUNT */ - - -/** - * Color channel data type. - */ -#if CHAN_BITS == 8 - typedef GLubyte GLchan; -#define CHAN_MAX 255 -#define CHAN_MAXF 255.0F -#define CHAN_TYPE GL_UNSIGNED_BYTE -#elif CHAN_BITS == 16 - typedef GLushort GLchan; -#define CHAN_MAX 65535 -#define CHAN_MAXF 65535.0F -#define CHAN_TYPE GL_UNSIGNED_SHORT -#elif CHAN_BITS == 32 - typedef GLfloat GLchan; -#define CHAN_MAX 1.0 -#define CHAN_MAXF 1.0F -#define CHAN_TYPE GL_FLOAT -#else -#error "illegal number of color channel bits" -#endif - - -/** - * Stencil buffer data type. - */ -#if STENCIL_BITS==8 - typedef GLubyte GLstencil; -#elif STENCIL_BITS==16 - typedef GLushort GLstencil; -#else -# error "illegal number of stencil bits" -#endif - - -/** - * \name 64-bit extension of GLbitfield. - */ -/*@{*/ -typedef GLuint64 GLbitfield64; - -/** Set a single bit */ -#define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b)) - - -/** - * \name Some forward type declarations - */ -/*@{*/ -struct _mesa_HashTable; -struct gl_attrib_node; -struct gl_list_extensions; -struct gl_meta_state; -struct gl_pixelstore_attrib; -struct gl_program_cache; -struct gl_texture_format; -struct gl_texture_image; -struct gl_texture_object; -struct gl_context; -struct st_context; -/*@}*/ - - -/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */ -#define PRIM_OUTSIDE_BEGIN_END (GL_POLYGON+1) -#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2) -#define PRIM_UNKNOWN (GL_POLYGON+3) - - -/** - * Shader stages. Note that these will become 5 with tessellation. - * These MUST have the same values as gallium's PIPE_SHADER_* - */ -typedef enum -{ - MESA_SHADER_VERTEX = 0, - MESA_SHADER_FRAGMENT = 1, - MESA_SHADER_GEOMETRY = 2, - MESA_SHADER_TYPES = 3 -} gl_shader_type; - - - -/** - * Indexes for vertex program attributes. - * GL_NV_vertex_program aliases generic attributes over the conventional - * attributes. In GL_ARB_vertex_program shader the aliasing is optional. - * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the - * generic attributes are distinct/separate). - */ -typedef enum -{ - VERT_ATTRIB_POS = 0, - VERT_ATTRIB_WEIGHT = 1, - VERT_ATTRIB_NORMAL = 2, - VERT_ATTRIB_COLOR0 = 3, - VERT_ATTRIB_COLOR1 = 4, - VERT_ATTRIB_FOG = 5, - VERT_ATTRIB_COLOR_INDEX = 6, - VERT_ATTRIB_POINT_SIZE = 6, /*alias*/ - VERT_ATTRIB_EDGEFLAG = 7, - VERT_ATTRIB_TEX0 = 8, - VERT_ATTRIB_TEX1 = 9, - VERT_ATTRIB_TEX2 = 10, - VERT_ATTRIB_TEX3 = 11, - VERT_ATTRIB_TEX4 = 12, - VERT_ATTRIB_TEX5 = 13, - VERT_ATTRIB_TEX6 = 14, - VERT_ATTRIB_TEX7 = 15, - VERT_ATTRIB_GENERIC0 = 16, - VERT_ATTRIB_GENERIC1 = 17, - VERT_ATTRIB_GENERIC2 = 18, - VERT_ATTRIB_GENERIC3 = 19, - VERT_ATTRIB_GENERIC4 = 20, - VERT_ATTRIB_GENERIC5 = 21, - VERT_ATTRIB_GENERIC6 = 22, - VERT_ATTRIB_GENERIC7 = 23, - VERT_ATTRIB_GENERIC8 = 24, - VERT_ATTRIB_GENERIC9 = 25, - VERT_ATTRIB_GENERIC10 = 26, - VERT_ATTRIB_GENERIC11 = 27, - VERT_ATTRIB_GENERIC12 = 28, - VERT_ATTRIB_GENERIC13 = 29, - VERT_ATTRIB_GENERIC14 = 30, - VERT_ATTRIB_GENERIC15 = 31, - VERT_ATTRIB_MAX = 32 -} gl_vert_attrib; - -/** - * Bitflags for vertex attributes. - * These are used in bitfields in many places. - */ -/*@{*/ -#define VERT_BIT_POS (1 << VERT_ATTRIB_POS) -#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT) -#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL) -#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0) -#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1) -#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG) -#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX) -#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG) -#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0) -#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1) -#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2) -#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3) -#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4) -#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5) -#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6) -#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7) -#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0) -#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1) -#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2) -#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3) -#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4) -#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5) -#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6) -#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7) -#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8) -#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9) -#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10) -#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11) -#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12) -#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13) -#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14) -#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15) - -#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u))) -#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g))) -/*@}*/ - - -/** - * Indexes for vertex program result attributes - */ -typedef enum -{ - VERT_RESULT_HPOS = 0, - VERT_RESULT_COL0 = 1, - VERT_RESULT_COL1 = 2, - VERT_RESULT_FOGC = 3, - VERT_RESULT_TEX0 = 4, - VERT_RESULT_TEX1 = 5, - VERT_RESULT_TEX2 = 6, - VERT_RESULT_TEX3 = 7, - VERT_RESULT_TEX4 = 8, - VERT_RESULT_TEX5 = 9, - VERT_RESULT_TEX6 = 10, - VERT_RESULT_TEX7 = 11, - VERT_RESULT_PSIZ = 12, - VERT_RESULT_BFC0 = 13, - VERT_RESULT_BFC1 = 14, - VERT_RESULT_EDGE = 15, - VERT_RESULT_VAR0 = 16, /**< shader varying */ - VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING) -} gl_vert_result; - - -/*********************************************/ - -/** - * Indexes for geometry program attributes. - */ -typedef enum -{ - GEOM_ATTRIB_POSITION = 0, - GEOM_ATTRIB_COLOR0 = 1, - GEOM_ATTRIB_COLOR1 = 2, - GEOM_ATTRIB_SECONDARY_COLOR0 = 3, - GEOM_ATTRIB_SECONDARY_COLOR1 = 4, - GEOM_ATTRIB_FOG_FRAG_COORD = 5, - GEOM_ATTRIB_POINT_SIZE = 6, - GEOM_ATTRIB_CLIP_VERTEX = 7, - GEOM_ATTRIB_PRIMITIVE_ID = 8, - GEOM_ATTRIB_TEX_COORD = 9, - - GEOM_ATTRIB_VAR0 = 16, - GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING) -} gl_geom_attrib; - -/** - * Bitflags for geometry attributes. - * These are used in bitfields in many places. - */ -/*@{*/ -#define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0) -#define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1) -#define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0) -#define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1) -#define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD) -#define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD) -#define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION) -#define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE) -#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX) -#define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID) -#define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0) - -#define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g))) -/*@}*/ - - -/** - * Indexes for geometry program result attributes - */ -typedef enum -{ - GEOM_RESULT_POS = 0, - GEOM_RESULT_COL0 = 1, - GEOM_RESULT_COL1 = 2, - GEOM_RESULT_SCOL0 = 3, - GEOM_RESULT_SCOL1 = 4, - GEOM_RESULT_FOGC = 5, - GEOM_RESULT_TEX0 = 6, - GEOM_RESULT_TEX1 = 7, - GEOM_RESULT_TEX2 = 8, - GEOM_RESULT_TEX3 = 9, - GEOM_RESULT_TEX4 = 10, - GEOM_RESULT_TEX5 = 11, - GEOM_RESULT_TEX6 = 12, - GEOM_RESULT_TEX7 = 13, - GEOM_RESULT_PSIZ = 14, - GEOM_RESULT_CLPV = 15, - GEOM_RESULT_PRID = 16, - GEOM_RESULT_LAYR = 17, - GEOM_RESULT_VAR0 = 18, /**< shader varying, should really be 16 */ - /* ### we need to -2 because var0 is 18 instead 16 like in the others */ - GEOM_RESULT_MAX = (GEOM_RESULT_VAR0 + MAX_VARYING - 2) -} gl_geom_result; - - -/** - * Indexes for fragment program input attributes. - */ -typedef enum -{ - FRAG_ATTRIB_WPOS = 0, - FRAG_ATTRIB_COL0 = 1, - FRAG_ATTRIB_COL1 = 2, - FRAG_ATTRIB_FOGC = 3, - FRAG_ATTRIB_TEX0 = 4, - FRAG_ATTRIB_TEX1 = 5, - FRAG_ATTRIB_TEX2 = 6, - FRAG_ATTRIB_TEX3 = 7, - FRAG_ATTRIB_TEX4 = 8, - FRAG_ATTRIB_TEX5 = 9, - FRAG_ATTRIB_TEX6 = 10, - FRAG_ATTRIB_TEX7 = 11, - FRAG_ATTRIB_FACE = 12, /**< front/back face */ - FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */ - FRAG_ATTRIB_VAR0 = 14, /**< shader varying */ - FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING) -} gl_frag_attrib; - -/** - * Bitflags for fragment program input attributes. - */ -/*@{*/ -#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS) -#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0) -#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1) -#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC) -#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE) -#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC) -#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0) -#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1) -#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2) -#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3) -#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4) -#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5) -#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6) -#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7) -#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0) - -#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U)) -#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V)) - -#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \ - FRAG_BIT_TEX1| \ - FRAG_BIT_TEX2| \ - FRAG_BIT_TEX3| \ - FRAG_BIT_TEX4| \ - FRAG_BIT_TEX5| \ - FRAG_BIT_TEX6| \ - FRAG_BIT_TEX7) -/*@}*/ - - -/** - * Fragment program results - */ -typedef enum -{ - FRAG_RESULT_DEPTH = 0, - FRAG_RESULT_STENCIL = 1, - FRAG_RESULT_COLOR = 2, - FRAG_RESULT_DATA0 = 3, - FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS) -} gl_frag_result; - - -/** - * Indexes for all renderbuffers - */ -typedef enum -{ - /* the four standard color buffers */ - BUFFER_FRONT_LEFT, - BUFFER_BACK_LEFT, - BUFFER_FRONT_RIGHT, - BUFFER_BACK_RIGHT, - BUFFER_DEPTH, - BUFFER_STENCIL, - BUFFER_ACCUM, - /* optional aux buffer */ - BUFFER_AUX0, - /* generic renderbuffers */ - BUFFER_COLOR0, - BUFFER_COLOR1, - BUFFER_COLOR2, - BUFFER_COLOR3, - BUFFER_COLOR4, - BUFFER_COLOR5, - BUFFER_COLOR6, - BUFFER_COLOR7, - BUFFER_COUNT -} gl_buffer_index; - -/** - * Bit flags for all renderbuffers - */ -#define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT) -#define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT) -#define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT) -#define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT) -#define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0) -#define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1) -#define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2) -#define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3) -#define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH) -#define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL) -#define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM) -#define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0) -#define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1) -#define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2) -#define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3) -#define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4) -#define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5) -#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6) -#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7) - -/** - * Mask of all the color buffer bits (but not accum). - */ -#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \ - BUFFER_BIT_BACK_LEFT | \ - BUFFER_BIT_FRONT_RIGHT | \ - BUFFER_BIT_BACK_RIGHT | \ - BUFFER_BIT_AUX0 | \ - BUFFER_BIT_COLOR0 | \ - BUFFER_BIT_COLOR1 | \ - BUFFER_BIT_COLOR2 | \ - BUFFER_BIT_COLOR3 | \ - BUFFER_BIT_COLOR4 | \ - BUFFER_BIT_COLOR5 | \ - BUFFER_BIT_COLOR6 | \ - BUFFER_BIT_COLOR7) - - -/** - * Framebuffer configuration (aka visual / pixelformat) - * Note: some of these fields should be boolean, but it appears that - * code in drivers/dri/common/util.c requires int-sized fields. - */ -struct gl_config -{ - GLboolean rgbMode; - GLboolean floatMode; - GLboolean colorIndexMode; /* XXX is this used anywhere? */ - GLuint doubleBufferMode; - GLuint stereoMode; - - GLboolean haveAccumBuffer; - GLboolean haveDepthBuffer; - GLboolean haveStencilBuffer; - - GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */ - GLuint redMask, greenMask, blueMask, alphaMask; - GLint rgbBits; /* total bits for rgb */ - GLint indexBits; /* total bits for colorindex */ - - GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits; - GLint depthBits; - GLint stencilBits; - - GLint numAuxBuffers; - - GLint level; - - /* EXT_visual_rating / GLX 1.2 */ - GLint visualRating; - - /* EXT_visual_info / GLX 1.2 */ - GLint transparentPixel; - /* colors are floats scaled to ints */ - GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha; - GLint transparentIndex; - - /* ARB_multisample / SGIS_multisample */ - GLint sampleBuffers; - GLint samples; - - /* SGIX_pbuffer / GLX 1.3 */ - GLint maxPbufferWidth; - GLint maxPbufferHeight; - GLint maxPbufferPixels; - GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */ - GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */ - - /* OML_swap_method */ - GLint swapMethod; - - /* EXT_texture_from_pixmap */ - GLint bindToTextureRgb; - GLint bindToTextureRgba; - GLint bindToMipmapTexture; - GLint bindToTextureTargets; - GLint yInverted; - - /* EXT_framebuffer_sRGB */ - GLint sRGBCapable; -}; - - -/** - * Data structure for color tables - */ -struct gl_color_table -{ - GLenum InternalFormat; /**< The user-specified format */ - GLenum _BaseFormat; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */ - GLuint Size; /**< number of entries in table */ - GLfloat *TableF; /**< Color table, floating point values */ - GLubyte *TableUB; /**< Color table, ubyte values */ - GLubyte RedSize; - GLubyte GreenSize; - GLubyte BlueSize; - GLubyte AlphaSize; - GLubyte LuminanceSize; - GLubyte IntensitySize; -}; - - -/** - * \name Bit flags used for updating material values. - */ -/*@{*/ -#define MAT_ATTRIB_FRONT_AMBIENT 0 -#define MAT_ATTRIB_BACK_AMBIENT 1 -#define MAT_ATTRIB_FRONT_DIFFUSE 2 -#define MAT_ATTRIB_BACK_DIFFUSE 3 -#define MAT_ATTRIB_FRONT_SPECULAR 4 -#define MAT_ATTRIB_BACK_SPECULAR 5 -#define MAT_ATTRIB_FRONT_EMISSION 6 -#define MAT_ATTRIB_BACK_EMISSION 7 -#define MAT_ATTRIB_FRONT_SHININESS 8 -#define MAT_ATTRIB_BACK_SHININESS 9 -#define MAT_ATTRIB_FRONT_INDEXES 10 -#define MAT_ATTRIB_BACK_INDEXES 11 -#define MAT_ATTRIB_MAX 12 - -#define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f)) -#define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f)) -#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f)) -#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f)) -#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f)) -#define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f)) - -#define MAT_INDEX_AMBIENT 0 -#define MAT_INDEX_DIFFUSE 1 -#define MAT_INDEX_SPECULAR 2 - -#define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT) -#define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT) -#define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE) -#define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE) -#define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR) -#define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR) -#define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION) -#define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION) -#define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS) -#define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS) -#define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES) -#define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES) - - -#define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \ - MAT_BIT_FRONT_AMBIENT | \ - MAT_BIT_FRONT_DIFFUSE | \ - MAT_BIT_FRONT_SPECULAR | \ - MAT_BIT_FRONT_SHININESS | \ - MAT_BIT_FRONT_INDEXES) - -#define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \ - MAT_BIT_BACK_AMBIENT | \ - MAT_BIT_BACK_DIFFUSE | \ - MAT_BIT_BACK_SPECULAR | \ - MAT_BIT_BACK_SHININESS | \ - MAT_BIT_BACK_INDEXES) - -#define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS) -/*@}*/ - - -#define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */ -#define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */ - -/** - * Material shininess lookup table. - */ -struct gl_shine_tab -{ - struct gl_shine_tab *next, *prev; - GLfloat tab[SHINE_TABLE_SIZE+1]; - GLfloat shininess; - GLuint refcount; -}; - - -/** - * Light source state. - */ -struct gl_light -{ - struct gl_light *next; /**< double linked list with sentinel */ - struct gl_light *prev; - - GLfloat Ambient[4]; /**< ambient color */ - GLfloat Diffuse[4]; /**< diffuse color */ - GLfloat Specular[4]; /**< specular color */ - GLfloat EyePosition[4]; /**< position in eye coordinates */ - GLfloat SpotDirection[4]; /**< spotlight direction in eye coordinates */ - GLfloat SpotExponent; - GLfloat SpotCutoff; /**< in degrees */ - GLfloat _CosCutoffNeg; /**< = cos(SpotCutoff) */ - GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */ - GLfloat ConstantAttenuation; - GLfloat LinearAttenuation; - GLfloat QuadraticAttenuation; - GLboolean Enabled; /**< On/off flag */ - - /** - * \name Derived fields - */ - /*@{*/ - GLbitfield _Flags; /**< State */ - - GLfloat _Position[4]; /**< position in eye/obj coordinates */ - GLfloat _VP_inf_norm[3]; /**< Norm direction to infinite light */ - GLfloat _h_inf_norm[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */ - GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */ - GLfloat _VP_inf_spot_attenuation; - - GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */ - GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */ - GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */ - GLfloat _MatSpecular[2][3]; /**< material spec * light specular */ - GLfloat _dli; /**< CI diffuse light intensity */ - GLfloat _sli; /**< CI specular light intensity */ - /*@}*/ -}; - - -/** - * Light model state. - */ -struct gl_lightmodel -{ - GLfloat Ambient[4]; /**< ambient color */ - GLboolean LocalViewer; /**< Local (or infinite) view point? */ - GLboolean TwoSide; /**< Two (or one) sided lighting? */ - GLenum ColorControl; /**< either GL_SINGLE_COLOR - * or GL_SEPARATE_SPECULAR_COLOR */ -}; - - -/** - * Material state. - */ -struct gl_material -{ - GLfloat Attrib[MAT_ATTRIB_MAX][4]; -}; - - -/** - * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT) - */ -struct gl_accum_attrib -{ - GLfloat ClearColor[4]; /**< Accumulation buffer clear color */ -}; - - -/** - * Color buffer attribute group (GL_COLOR_BUFFER_BIT). - */ -struct gl_colorbuffer_attrib -{ - GLuint ClearIndex; /**< Index to use for glClear */ - GLclampf ClearColor[4]; /**< Color to use for glClear */ - - GLuint IndexMask; /**< Color index write mask */ - GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */ - - GLenum DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */ - - /** - * \name alpha testing - */ - /*@{*/ - GLboolean AlphaEnabled; /**< Alpha test enabled flag */ - GLenum AlphaFunc; /**< Alpha test function */ - GLclampf AlphaRef; /**< Alpha reference value */ - /*@}*/ - - /** - * \name Blending - */ - /*@{*/ - GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */ - GLfloat BlendColor[4]; /**< Blending color */ - struct - { - GLenum SrcRGB; /**< RGB blend source term */ - GLenum DstRGB; /**< RGB blend dest term */ - GLenum SrcA; /**< Alpha blend source term */ - GLenum DstA; /**< Alpha blend dest term */ - GLenum EquationRGB; /**< GL_ADD, GL_SUBTRACT, etc. */ - GLenum EquationA; /**< GL_ADD, GL_SUBTRACT, etc. */ - } Blend[MAX_DRAW_BUFFERS]; - /** Are the blend func terms currently different for each buffer/target? */ - GLboolean _BlendFuncPerBuffer; - /** Are the blend equations currently different for each buffer/target? */ - GLboolean _BlendEquationPerBuffer; - /*@}*/ - - /** - * \name Logic op - */ - /*@{*/ - GLenum LogicOp; /**< Logic operator */ - GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */ - GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */ - GLboolean _LogicOpEnabled; /**< RGBA logic op + EXT_blend_logic_op enabled flag */ - /*@}*/ - - GLboolean DitherFlag; /**< Dither enable flag */ - - GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ - GLenum ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */ - - GLboolean sRGBEnabled; /**< Framebuffer sRGB blending/updating requested */ -}; - - -/** - * Current attribute group (GL_CURRENT_BIT). - */ -struct gl_current_attrib -{ - /** - * \name Current vertex attributes. - * \note Values are valid only after FLUSH_VERTICES has been called. - * \note Index and Edgeflag current values are stored as floats in the - * SIX and SEVEN attribute slots. - */ - GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */ - - /** - * \name Current raster position attributes (always valid). - * \note This set of attributes is very similar to the SWvertex struct. - */ - /*@{*/ - GLfloat RasterPos[4]; - GLfloat RasterDistance; - GLfloat RasterColor[4]; - GLfloat RasterSecondaryColor[4]; - GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4]; - GLboolean RasterPosValid; - /*@}*/ -}; - - -/** - * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT). - */ -struct gl_depthbuffer_attrib -{ - GLenum Func; /**< Function for depth buffer compare */ - GLclampd Clear; /**< Value to clear depth buffer to */ - GLboolean Test; /**< Depth buffering enabled flag */ - GLboolean Mask; /**< Depth buffer writable? */ - GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */ - GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */ -}; - - -/** - * Evaluator attribute group (GL_EVAL_BIT). - */ -struct gl_eval_attrib -{ - /** - * \name Enable bits - */ - /*@{*/ - GLboolean Map1Color4; - GLboolean Map1Index; - GLboolean Map1Normal; - GLboolean Map1TextureCoord1; - GLboolean Map1TextureCoord2; - GLboolean Map1TextureCoord3; - GLboolean Map1TextureCoord4; - GLboolean Map1Vertex3; - GLboolean Map1Vertex4; - GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */ - GLboolean Map2Color4; - GLboolean Map2Index; - GLboolean Map2Normal; - GLboolean Map2TextureCoord1; - GLboolean Map2TextureCoord2; - GLboolean Map2TextureCoord3; - GLboolean Map2TextureCoord4; - GLboolean Map2Vertex3; - GLboolean Map2Vertex4; - GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */ - GLboolean AutoNormal; - /*@}*/ - - /** - * \name Map Grid endpoints and divisions and calculated du values - */ - /*@{*/ - GLint MapGrid1un; - GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du; - GLint MapGrid2un, MapGrid2vn; - GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du; - GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv; - /*@}*/ -}; - - -/** - * Fog attribute group (GL_FOG_BIT). - */ -struct gl_fog_attrib -{ - GLboolean Enabled; /**< Fog enabled flag */ - GLfloat Color[4]; /**< Fog color */ - GLfloat Density; /**< Density >= 0.0 */ - GLfloat Start; /**< Start distance in eye coords */ - GLfloat End; /**< End distance in eye coords */ - GLfloat Index; /**< Fog index */ - GLenum Mode; /**< Fog mode */ - GLboolean ColorSumEnabled; - GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */ - GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */ -}; - - -/** - * \brief Layout qualifiers for gl_FragDepth. - * - * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with - * a layout qualifier. - * - * \see enum ir_depth_layout - */ -enum gl_frag_depth_layout { - FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */ - FRAG_DEPTH_LAYOUT_ANY, - FRAG_DEPTH_LAYOUT_GREATER, - FRAG_DEPTH_LAYOUT_LESS, - FRAG_DEPTH_LAYOUT_UNCHANGED -}; - - -/** - * Hint attribute group (GL_HINT_BIT). - * - * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE. - */ -struct gl_hint_attrib -{ - GLenum PerspectiveCorrection; - GLenum PointSmooth; - GLenum LineSmooth; - GLenum PolygonSmooth; - GLenum Fog; - GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */ - GLenum TextureCompression; /**< GL_ARB_texture_compression */ - GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */ - GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */ -}; - -/** - * Light state flags. - */ -/*@{*/ -#define LIGHT_SPOT 0x1 -#define LIGHT_LOCAL_VIEWER 0x2 -#define LIGHT_POSITIONAL 0x4 -#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER) -/*@}*/ - - -/** - * Lighting attribute group (GL_LIGHT_BIT). - */ -struct gl_light_attrib -{ - struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */ - struct gl_lightmodel Model; /**< Lighting model */ - - /** - * Must flush FLUSH_VERTICES before referencing: - */ - /*@{*/ - struct gl_material Material; /**< Includes front & back values */ - /*@}*/ - - GLboolean Enabled; /**< Lighting enabled flag */ - GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */ - GLenum ProvokingVertex; /**< GL_EXT_provoking_vertex */ - GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ - GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ - GLbitfield ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ - GLboolean ColorMaterialEnabled; - GLenum ClampVertexColor; - - struct gl_light EnabledList; /**< List sentinel */ - - /** - * Derived state for optimizations: - */ - /*@{*/ - GLboolean _NeedEyeCoords; - GLboolean _NeedVertices; /**< Use fast shader? */ - GLbitfield _Flags; /**< LIGHT_* flags, see above */ - GLfloat _BaseColor[2][3]; - /*@}*/ -}; - - -/** - * Line attribute group (GL_LINE_BIT). - */ -struct gl_line_attrib -{ - GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */ - GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */ - GLushort StipplePattern; /**< Stipple pattern */ - GLint StippleFactor; /**< Stipple repeat factor */ - GLfloat Width; /**< Line width */ -}; - - -/** - * Display list attribute group (GL_LIST_BIT). - */ -struct gl_list_attrib -{ - GLuint ListBase; -}; - - -/** - * Multisample attribute group (GL_MULTISAMPLE_BIT). - */ -struct gl_multisample_attrib -{ - GLboolean Enabled; - GLboolean _Enabled; /**< true if Enabled and multisample buffer */ - GLboolean SampleAlphaToCoverage; - GLboolean SampleAlphaToOne; - GLboolean SampleCoverage; - GLfloat SampleCoverageValue; - GLboolean SampleCoverageInvert; -}; - - -/** - * A pixelmap (see glPixelMap) - */ -struct gl_pixelmap -{ - GLint Size; - GLfloat Map[MAX_PIXEL_MAP_TABLE]; - GLubyte Map8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */ -}; - - -/** - * Collection of all pixelmaps - */ -struct gl_pixelmaps -{ - struct gl_pixelmap RtoR; /**< i.e. GL_PIXEL_MAP_R_TO_R */ - struct gl_pixelmap GtoG; - struct gl_pixelmap BtoB; - struct gl_pixelmap AtoA; - struct gl_pixelmap ItoR; - struct gl_pixelmap ItoG; - struct gl_pixelmap ItoB; - struct gl_pixelmap ItoA; - struct gl_pixelmap ItoI; - struct gl_pixelmap StoS; -}; - - -/** - * Pixel attribute group (GL_PIXEL_MODE_BIT). - */ -struct gl_pixel_attrib -{ - GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */ - - /*--- Begin Pixel Transfer State ---*/ - /* Fields are in the order in which they're applied... */ - - /** Scale & Bias (index shift, offset) */ - /*@{*/ - GLfloat RedBias, RedScale; - GLfloat GreenBias, GreenScale; - GLfloat BlueBias, BlueScale; - GLfloat AlphaBias, AlphaScale; - GLfloat DepthBias, DepthScale; - GLint IndexShift, IndexOffset; - /*@}*/ - - /* Pixel Maps */ - /* Note: actual pixel maps are not part of this attrib group */ - GLboolean MapColorFlag; - GLboolean MapStencilFlag; - - /*--- End Pixel Transfer State ---*/ - - /** glPixelZoom */ - GLfloat ZoomX, ZoomY; -}; - - -/** - * Point attribute group (GL_POINT_BIT). - */ -struct gl_point_attrib -{ - GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */ - GLfloat Size; /**< User-specified point size */ - GLfloat Params[3]; /**< GL_EXT_point_parameters */ - GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */ - GLfloat Threshold; /**< GL_EXT_point_parameters */ - GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */ - GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */ - GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/ - GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */ - GLenum SpriteOrigin; /**< GL_ARB_point_sprite */ -}; - - -/** - * Polygon attribute group (GL_POLYGON_BIT). - */ -struct gl_polygon_attrib -{ - GLenum FrontFace; /**< Either GL_CW or GL_CCW */ - GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ - GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ - GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */ - GLboolean CullFlag; /**< Culling on/off flag */ - GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */ - GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */ - GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */ - GLfloat OffsetFactor; /**< Polygon offset factor, from user */ - GLfloat OffsetUnits; /**< Polygon offset units, from user */ - GLboolean OffsetPoint; /**< Offset in GL_POINT mode */ - GLboolean OffsetLine; /**< Offset in GL_LINE mode */ - GLboolean OffsetFill; /**< Offset in GL_FILL mode */ -}; - - -/** - * Scissor attributes (GL_SCISSOR_BIT). - */ -struct gl_scissor_attrib -{ - GLboolean Enabled; /**< Scissor test enabled? */ - GLint X, Y; /**< Lower left corner of box */ - GLsizei Width, Height; /**< Size of box */ -}; - - -/** - * Stencil attribute group (GL_STENCIL_BUFFER_BIT). - * - * Three sets of stencil data are tracked so that OpenGL 2.0, - * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported - * simultaneously. In each of the stencil state arrays, element 0 corresponds - * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 / - * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the - * GL_EXT_stencil_two_side GL_BACK state. - * - * The derived value \c _BackFace is either 1 or 2 depending on whether or - * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled. - * - * The derived value \c _TestTwoSide is set when the front-face and back-face - * stencil state are different. - */ -struct gl_stencil_attrib -{ - GLboolean Enabled; /**< Enabled flag */ - GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ - GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */ - GLboolean _Enabled; /**< Enabled and stencil buffer present */ - GLboolean _TestTwoSide; - GLubyte _BackFace; /**< Current back stencil state (1 or 2) */ - GLenum Function[3]; /**< Stencil function */ - GLenum FailFunc[3]; /**< Fail function */ - GLenum ZPassFunc[3]; /**< Depth buffer pass function */ - GLenum ZFailFunc[3]; /**< Depth buffer fail function */ - GLint Ref[3]; /**< Reference value */ - GLuint ValueMask[3]; /**< Value mask */ - GLuint WriteMask[3]; /**< Write mask */ - GLuint Clear; /**< Clear value */ -}; - - -/** - * An index for each type of texture object. These correspond to the GL - * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc. - * Note: the order is from highest priority to lowest priority. - */ -typedef enum -{ - TEXTURE_2D_ARRAY_INDEX, - TEXTURE_1D_ARRAY_INDEX, - TEXTURE_CUBE_INDEX, - TEXTURE_3D_INDEX, - TEXTURE_RECT_INDEX, - TEXTURE_2D_INDEX, - TEXTURE_1D_INDEX, - NUM_TEXTURE_TARGETS -} gl_texture_index; - - -/** - * Bit flags for each type of texture object - * Used for Texture.Unit[]._ReallyEnabled flags. - */ -/*@{*/ -#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX) -#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX) -#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX) -#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX) -#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX) -#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX) -#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX) -/*@}*/ - - -/** - * TexGenEnabled flags. - */ -/*@{*/ -#define S_BIT 1 -#define T_BIT 2 -#define R_BIT 4 -#define Q_BIT 8 -#define STR_BITS (S_BIT | T_BIT | R_BIT) -/*@}*/ - - -/** - * Bit flag versions of the corresponding GL_ constants. - */ -/*@{*/ -#define TEXGEN_SPHERE_MAP 0x1 -#define TEXGEN_OBJ_LINEAR 0x2 -#define TEXGEN_EYE_LINEAR 0x4 -#define TEXGEN_REFLECTION_MAP_NV 0x8 -#define TEXGEN_NORMAL_MAP_NV 0x10 - -#define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \ - TEXGEN_REFLECTION_MAP_NV | \ - TEXGEN_NORMAL_MAP_NV) -#define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \ - TEXGEN_REFLECTION_MAP_NV | \ - TEXGEN_NORMAL_MAP_NV | \ - TEXGEN_EYE_LINEAR) -/*@}*/ - - - -/** Tex-gen enabled for texture unit? */ -#define ENABLE_TEXGEN(unit) (1 << (unit)) - -/** Non-identity texture matrix for texture unit? */ -#define ENABLE_TEXMAT(unit) (1 << (unit)) - - -/** - * Texel fetch function prototype. We use texel fetch functions to - * extract RGBA, color indexes and depth components out of 1D, 2D and 3D - * texture images. These functions help to isolate us from the gritty - * details of all the various texture image encodings. - * - * \param texImage texture image. - * \param col texel column. - * \param row texel row. - * \param img texel image level/layer. - * \param texelOut output texel (up to 4 GLchans) - */ -typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - GLchan *texelOut ); - -/** - * As above, but returns floats. - * Used for depth component images and for upcoming signed/float - * texture images. - */ -typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - GLfloat *texelOut ); - - -typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage, - GLint col, GLint row, GLint img, - const void *texel); - - -/** - * Texture image state. Describes the dimensions of a texture image, - * the texel format and pointers to Texel Fetch functions. - */ -struct gl_texture_image -{ - GLint InternalFormat; /**< Internal format as given by the user */ - GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA, - * GL_LUMINANCE, GL_LUMINANCE_ALPHA, - * GL_INTENSITY, GL_COLOR_INDEX, - * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT - * only. Used for choosing TexEnv arithmetic. - */ - gl_format TexFormat; /**< The actual texture memory format */ - - GLuint Border; /**< 0 or 1 */ - GLuint Width; /**< = 2^WidthLog2 + 2*Border */ - GLuint Height; /**< = 2^HeightLog2 + 2*Border */ - GLuint Depth; /**< = 2^DepthLog2 + 2*Border */ - GLuint Width2; /**< = Width - 2*Border */ - GLuint Height2; /**< = Height - 2*Border */ - GLuint Depth2; /**< = Depth - 2*Border */ - GLuint WidthLog2; /**< = log2(Width2) */ - GLuint HeightLog2; /**< = log2(Height2) */ - GLuint DepthLog2; /**< = log2(Depth2) */ - GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */ - GLfloat WidthScale; /**< used for mipmap LOD computation */ - GLfloat HeightScale; /**< used for mipmap LOD computation */ - GLfloat DepthScale; /**< used for mipmap LOD computation */ - GLboolean IsClientData; /**< Data owned by client? */ - GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */ - - struct gl_texture_object *TexObject; /**< Pointer back to parent object */ - - FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */ - FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */ - - GLuint RowStride; /**< Padded width in units of texels */ - GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to - each 2D slice in 'Data', in texels */ - GLvoid *Data; /**< Image data, accessed via FetchTexel() */ - - /** - * \name For device driver: - */ - /*@{*/ - void *DriverData; /**< Arbitrary device driver data */ - /*@}*/ -}; - - -/** - * Indexes for cube map faces. - */ -typedef enum -{ - FACE_POS_X = 0, - FACE_NEG_X = 1, - FACE_POS_Y = 2, - FACE_NEG_Y = 3, - FACE_POS_Z = 4, - FACE_NEG_Z = 5, - MAX_FACES = 6 -} gl_face_index; - - -/** - * Texture object state. Contains the array of mipmap images, border color, - * wrap modes, filter modes, shadow/texcompare state, and the per-texture - * color palette. - */ -struct gl_texture_object -{ - _glthread_Mutex Mutex; /**< for thread safety */ - GLint RefCount; /**< reference count */ - GLuint Name; /**< the user-visible texture object ID */ - GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ - GLfloat Priority; /**< in [0,1] */ - union { - GLfloat f[4]; - GLuint ui[4]; - GLint i[4]; - } BorderColor; /**< Interpreted according to texture format */ - GLenum WrapS; /**< S-axis texture image wrap mode */ - GLenum WrapT; /**< T-axis texture image wrap mode */ - GLenum WrapR; /**< R-axis texture image wrap mode */ - GLenum MinFilter; /**< minification filter */ - GLenum MagFilter; /**< magnification filter */ - GLfloat MinLod; /**< min lambda, OpenGL 1.2 */ - GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */ - GLfloat LodBias; /**< OpenGL 1.4 */ - GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */ - GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */ - GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ - GLenum CompareMode; /**< GL_ARB_shadow */ - GLenum CompareFunc; /**< GL_ARB_shadow */ - GLfloat CompareFailValue; /**< GL_ARB_shadow_ambient */ - GLenum DepthMode; /**< GL_ARB_depth_texture */ - GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */ - GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */ - GLint CropRect[4]; /**< GL_OES_draw_texture */ - GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */ - GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */ - GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ - GLboolean _Complete; /**< Is texture object complete? */ - GLboolean _RenderToTexture; /**< Any rendering to this texture? */ - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ - GLenum sRGBDecode; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */ - - /** Actual texture images, indexed by [cube face] and [mipmap level] */ - struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS]; - - /** GL_EXT_paletted_texture */ - struct gl_color_table Palette; - - /** - * \name For device driver. - * Note: instead of attaching driver data to this pointer, it's preferable - * to instead use this struct as a base class for your own texture object - * class. Driver->NewTextureObject() can be used to implement the - * allocation. - */ - void *DriverData; /**< Arbitrary device driver data */ -}; - - -/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */ -#define MAX_COMBINER_TERMS 4 - - -/** - * Texture combine environment state. - */ -struct gl_tex_env_combine_state -{ - GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */ - GLenum SourceRGB[MAX_COMBINER_TERMS]; - GLenum SourceA[MAX_COMBINER_TERMS]; - /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */ - GLenum OperandRGB[MAX_COMBINER_TERMS]; - GLenum OperandA[MAX_COMBINER_TERMS]; - GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ - GLuint ScaleShiftA; /**< 0, 1 or 2 */ - GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ - GLuint _NumArgsA; /**< Number of inputs used for the A combiner */ -}; - - -/** - * Texture coord generation state. - */ -struct gl_texgen -{ - GLenum Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */ - GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */ - GLfloat ObjectPlane[4]; - GLfloat EyePlane[4]; -}; - - -/** - * Texture unit state. Contains enable flags, texture environment/function/ - * combiners, texgen state, pointers to current texture objects and - * post-filter color tables. - */ -struct gl_texture_unit -{ - GLbitfield Enabled; /**< bitmask of TEXTURE_*_BIT flags */ - GLbitfield _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */ - - GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ - GLfloat EnvColor[4]; - - struct gl_texgen GenS; - struct gl_texgen GenT; - struct gl_texgen GenR; - struct gl_texgen GenQ; - GLbitfield TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ - GLbitfield _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */ - - GLfloat LodBias; /**< for biasing mipmap levels */ - GLenum BumpTarget; - GLfloat RotMatrix[4]; /* 2x2 matrix */ - - /** - * \name GL_EXT_texture_env_combine - */ - struct gl_tex_env_combine_state Combine; - - /** - * Derived state based on \c EnvMode and the \c BaseFormat of the - * currently enabled texture. - */ - struct gl_tex_env_combine_state _EnvMode; - - /** - * Currently enabled combiner state. This will point to either - * \c Combine or \c _EnvMode. - */ - struct gl_tex_env_combine_state *_CurrentCombine; - - /** Current texture object pointers */ - struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS]; - - /** Points to highest priority, complete and enabled texture object */ - struct gl_texture_object *_Current; -}; - - -/** - * Texture attribute group (GL_TEXTURE_BIT). - */ -struct gl_texture_attrib -{ - GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */ - struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS]; - - struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS]; - - /** GL_ARB_seamless_cubemap */ - GLboolean CubeMapSeamless; - - /** GL_EXT_shared_texture_palette */ - GLboolean SharedPalette; - struct gl_color_table Palette; - - /** Texture units/samplers used by vertex or fragment texturing */ - GLbitfield _EnabledUnits; - - /** Texture coord units/sets used for fragment texturing */ - GLbitfield _EnabledCoordUnits; - - /** Texture coord units that have texgen enabled */ - GLbitfield _TexGenEnabled; - - /** Texture coord units that have non-identity matrices */ - GLbitfield _TexMatEnabled; - - /** Bitwise-OR of all Texture.Unit[i]._GenFlags */ - GLbitfield _GenFlags; -}; - - -/** - * Transformation attribute group (GL_TRANSFORM_BIT). - */ -struct gl_transform_attrib -{ - GLenum MatrixMode; /**< Matrix mode */ - GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */ - GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */ - GLbitfield ClipPlanesEnabled; /**< on/off bitmask */ - GLboolean Normalize; /**< Normalize all normals? */ - GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ - GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ - GLboolean DepthClamp; /**< GL_ARB_depth_clamp */ - - GLfloat CullEyePos[4]; - GLfloat CullObjPos[4]; -}; - - -/** - * Viewport attribute group (GL_VIEWPORT_BIT). - */ -struct gl_viewport_attrib -{ - GLint X, Y; /**< position */ - GLsizei Width, Height; /**< size */ - GLfloat Near, Far; /**< Depth buffer range */ - GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */ -}; - - -/** - * GL_ARB_vertex/pixel_buffer_object buffer object - */ -struct gl_buffer_object -{ - _glthread_Mutex Mutex; - GLint RefCount; - GLuint Name; - GLenum Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */ - GLsizeiptrARB Size; /**< Size of buffer storage in bytes */ - GLubyte *Data; /**< Location of storage either in RAM or VRAM. */ - /** Fields describing a mapped buffer */ - /*@{*/ - GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */ - GLvoid *Pointer; /**< User-space address of mapping */ - GLintptr Offset; /**< Mapped offset */ - GLsizeiptr Length; /**< Mapped length */ - /*@}*/ - GLboolean Written; /**< Ever written to? (for debugging) */ - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ -}; - - -/** - * Client pixel packing/unpacking attributes - */ -struct gl_pixelstore_attrib -{ - GLint Alignment; - GLint RowLength; - GLint SkipPixels; - GLint SkipRows; - GLint ImageHeight; - GLint SkipImages; - GLboolean SwapBytes; - GLboolean LsbFirst; - GLboolean ClientStorage; /**< GL_APPLE_client_storage */ - GLboolean Invert; /**< GL_MESA_pack_invert */ - struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */ -}; - - -/** - * Client vertex array attributes - */ -struct gl_client_array -{ - GLint Size; /**< components per element (1,2,3,4) */ - GLenum Type; /**< datatype: GL_FLOAT, GL_INT, etc */ - GLenum Format; /**< default: GL_RGBA, but may be GL_BGRA */ - GLsizei Stride; /**< user-specified stride */ - GLsizei StrideB; /**< actual stride in bytes */ - const GLubyte *Ptr; /**< Points to array data */ - GLboolean Enabled; /**< Enabled flag is a boolean */ - GLboolean Normalized; /**< GL_ARB_vertex_program */ - GLboolean Integer; /**< Integer-valued? */ - GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */ - GLuint _ElementSize; /**< size of each element in bytes */ - - struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */ - GLuint _MaxElement; /**< max element index into array buffer + 1 */ -}; - - -/** - * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object - * extension, but a nice encapsulation in any case. - */ -struct gl_array_object -{ - /** Name of the array object as received from glGenVertexArrayAPPLE. */ - GLuint Name; - - GLint RefCount; - _glthread_Mutex Mutex; - GLboolean VBOonly; /**< require all arrays to live in VBOs? */ - - /** Conventional vertex arrays */ - /*@{*/ - struct gl_client_array Vertex; - struct gl_client_array Weight; - struct gl_client_array Normal; - struct gl_client_array Color; - struct gl_client_array SecondaryColor; - struct gl_client_array FogCoord; - struct gl_client_array Index; - struct gl_client_array EdgeFlag; - struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS]; - struct gl_client_array PointSize; - /*@}*/ - - /** - * Generic arrays for vertex programs/shaders. - * For NV vertex programs, these attributes alias and take priority - * over the conventional attribs above. For ARB vertex programs and - * GLSL vertex shaders, these attributes are separate. - */ - struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS]; - - /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */ - GLbitfield _Enabled; - - /** - * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs - * we can determine the max legal (in bounds) glDrawElements array index. - */ - GLuint _MaxElement; -}; - - -/** - * Vertex array state - */ -struct gl_array_attrib -{ - /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */ - struct gl_array_object *ArrayObj; - - /** The default vertex array object */ - struct gl_array_object *DefaultArrayObj; - - /** Array objects (GL_ARB/APPLE_vertex_array_object) */ - struct _mesa_HashTable *Objects; - - GLint ActiveTexture; /**< Client Active Texture */ - GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */ - GLuint LockCount; /**< GL_EXT_compiled_vertex_array */ - - /** GL 3.1 (slightly different from GL_NV_primitive_restart) */ - GLboolean PrimitiveRestart; - GLuint RestartIndex; - - GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */ - GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */ - - /* GL_ARB_vertex_buffer_object */ - struct gl_buffer_object *ArrayBufferObj; - struct gl_buffer_object *ElementArrayBufferObj; -}; - - -/** - * Feedback buffer state - */ -struct gl_feedback -{ - GLenum Type; - GLbitfield _Mask; /**< FB_* bits */ - GLfloat *Buffer; - GLuint BufferSize; - GLuint Count; -}; - - -/** - * Selection buffer state - */ -struct gl_selection -{ - GLuint *Buffer; /**< selection buffer */ - GLuint BufferSize; /**< size of the selection buffer */ - GLuint BufferCount; /**< number of values in the selection buffer */ - GLuint Hits; /**< number of records in the selection buffer */ - GLuint NameStackDepth; /**< name stack depth */ - GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */ - GLboolean HitFlag; /**< hit flag */ - GLfloat HitMinZ; /**< minimum hit depth */ - GLfloat HitMaxZ; /**< maximum hit depth */ -}; - - -/** - * 1-D Evaluator control points - */ -struct gl_1d_map -{ - GLuint Order; /**< Number of control points */ - GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */ - GLfloat *Points; /**< Points to contiguous control points */ -}; - - -/** - * 2-D Evaluator control points - */ -struct gl_2d_map -{ - GLuint Uorder; /**< Number of control points in U dimension */ - GLuint Vorder; /**< Number of control points in V dimension */ - GLfloat u1, u2, du; - GLfloat v1, v2, dv; - GLfloat *Points; /**< Points to contiguous control points */ -}; - - -/** - * All evaluator control point state - */ -struct gl_evaluators -{ - /** - * \name 1-D maps - */ - /*@{*/ - struct gl_1d_map Map1Vertex3; - struct gl_1d_map Map1Vertex4; - struct gl_1d_map Map1Index; - struct gl_1d_map Map1Color4; - struct gl_1d_map Map1Normal; - struct gl_1d_map Map1Texture1; - struct gl_1d_map Map1Texture2; - struct gl_1d_map Map1Texture3; - struct gl_1d_map Map1Texture4; - struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */ - /*@}*/ - - /** - * \name 2-D maps - */ - /*@{*/ - struct gl_2d_map Map2Vertex3; - struct gl_2d_map Map2Vertex4; - struct gl_2d_map Map2Index; - struct gl_2d_map Map2Color4; - struct gl_2d_map Map2Normal; - struct gl_2d_map Map2Texture1; - struct gl_2d_map Map2Texture2; - struct gl_2d_map Map2Texture3; - struct gl_2d_map Map2Texture4; - struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */ - /*@}*/ -}; - - -/** - * Names of the various vertex/fragment program register files, etc. - * - * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c) - * All values should fit in a 4-bit field. - * - * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM, - * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to - * be "uniform" variables since they can only be set outside glBegin/End. - * They're also all stored in the same Parameters array. - */ -typedef enum -{ - PROGRAM_TEMPORARY, /**< machine->Temporary[] */ - PROGRAM_INPUT, /**< machine->Inputs[] */ - PROGRAM_OUTPUT, /**< machine->Outputs[] */ - PROGRAM_VARYING, /**< machine->Inputs[]/Outputs[] */ - PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */ - PROGRAM_ENV_PARAM, /**< gl_program->Parameters[] */ - PROGRAM_STATE_VAR, /**< gl_program->Parameters[] */ - PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */ - PROGRAM_CONSTANT, /**< gl_program->Parameters[] */ - PROGRAM_UNIFORM, /**< gl_program->Parameters[] */ - PROGRAM_WRITE_ONLY, /**< A dummy, write-only register */ - PROGRAM_ADDRESS, /**< machine->AddressReg */ - PROGRAM_SAMPLER, /**< for shader samplers, compile-time only */ - PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */ - PROGRAM_UNDEFINED, /**< Invalid/TBD value */ - PROGRAM_FILE_MAX -} gl_register_file; - - -/** - * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be - * one of these values. - */ -typedef enum -{ - SYSTEM_VALUE_FRONT_FACE, /**< Fragment shader only (not done yet) */ - SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */ - SYSTEM_VALUE_MAX /**< Number of values */ -} gl_system_value; - - -/** Vertex and fragment instructions */ -struct prog_instruction; -struct gl_program_parameter_list; -struct gl_uniform_list; - - -/** - * Base class for any kind of program object - */ -struct gl_program -{ - GLuint Id; - GLubyte *String; /**< Null-terminated program text */ - GLint RefCount; - GLenum Target; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */ - GLenum Format; /**< String encoding format */ - GLboolean Resident; - - struct prog_instruction *Instructions; - - GLbitfield InputsRead; /**< Bitmask of which input regs are read */ - GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */ - GLbitfield SystemValuesRead; /**< Bitmask of SYSTEM_VALUE_x inputs used */ - GLbitfield InputFlags[MAX_PROGRAM_INPUTS]; /**< PROG_PARAM_BIT_x flags */ - GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */ - GLbitfield TexturesUsed[MAX_TEXTURE_UNITS]; /**< TEXTURE_x_BIT bitmask */ - GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */ - GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */ - - - /** Named parameters, constants, etc. from program text */ - struct gl_program_parameter_list *Parameters; - /** Numbered local parameters */ - GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4]; - - /** Vertex/fragment shader varying vars */ - struct gl_program_parameter_list *Varying; - /** Vertex program user-defined attributes */ - struct gl_program_parameter_list *Attributes; - - /** Map from sampler unit to texture unit (set by glUniform1i()) */ - GLubyte SamplerUnits[MAX_SAMPLERS]; - /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */ - gl_texture_index SamplerTargets[MAX_SAMPLERS]; - - /** Bitmask of which register files are read/written with indirect - * addressing. Mask of (1 << PROGRAM_x) bits. - */ - GLbitfield IndirectRegisterFiles; - - /** Logical counts */ - /*@{*/ - GLuint NumInstructions; - GLuint NumTemporaries; - GLuint NumParameters; - GLuint NumAttributes; - GLuint NumAddressRegs; - GLuint NumAluInstructions; - GLuint NumTexInstructions; - GLuint NumTexIndirections; - /*@}*/ - /** Native, actual h/w counts */ - /*@{*/ - GLuint NumNativeInstructions; - GLuint NumNativeTemporaries; - GLuint NumNativeParameters; - GLuint NumNativeAttributes; - GLuint NumNativeAddressRegs; - GLuint NumNativeAluInstructions; - GLuint NumNativeTexInstructions; - GLuint NumNativeTexIndirections; - /*@}*/ -}; - - -/** Vertex program object */ -struct gl_vertex_program -{ - struct gl_program Base; /**< base class */ - GLboolean IsNVProgram; /**< is this a GL_NV_vertex_program program? */ - GLboolean IsPositionInvariant; -}; - - -/** Geometry program object */ -struct gl_geometry_program -{ - struct gl_program Base; /**< base class */ - - GLint VerticesOut; - GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, - GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ - GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ -}; - - -/** Fragment program object */ -struct gl_fragment_program -{ - struct gl_program Base; /**< base class */ - GLenum FogOption; - GLboolean UsesKill; /**< shader uses KIL instruction */ - GLboolean OriginUpperLeft; - GLboolean PixelCenterInteger; - enum gl_frag_depth_layout FragDepthLayout; -}; - - -/** - * State common to vertex and fragment programs. - */ -struct gl_program_state -{ - GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */ - const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_ARB/NV */ -}; - - -/** - * Context state for vertex programs. - */ -struct gl_vertex_program_state -{ - GLboolean Enabled; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */ - GLboolean _Enabled; /**< Enabled and _valid_ user program? */ - GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */ - GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */ - struct gl_vertex_program *Current; /**< User-bound vertex program */ - - /** Currently enabled and valid vertex program (including internal - * programs, user-defined vertex programs and GLSL vertex shaders). - * This is the program we must use when rendering. - */ - struct gl_vertex_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /* For GL_NV_vertex_program only: */ - GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4]; - GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4]; - - /** Should fixed-function T&L be implemented with a vertex prog? */ - GLboolean _MaintainTnlProgram; - - /** Program to emulate fixed-function T&L (see above) */ - struct gl_vertex_program *_TnlProgram; - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; - - GLboolean _Overriden; -}; - - -/** - * Context state for geometry programs. - */ -struct gl_geometry_program_state -{ - GLboolean Enabled; /**< GL_ARB_GEOMETRY_SHADER4 */ - GLboolean _Enabled; /**< Enabled and valid program? */ - struct gl_geometry_program *Current; /**< user-bound geometry program */ - - /** Currently enabled and valid program (including internal programs - * and compiled shader programs). - */ - struct gl_geometry_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; -}; - -/** - * Context state for fragment programs. - */ -struct gl_fragment_program_state -{ - GLboolean Enabled; /**< User-set fragment program enable flag */ - GLboolean _Enabled; /**< Enabled and _valid_ user program? */ - struct gl_fragment_program *Current; /**< User-bound fragment program */ - - /** Currently enabled and valid fragment program (including internal - * programs, user-defined fragment programs and GLSL fragment shaders). - * This is the program we must use when rendering. - */ - struct gl_fragment_program *_Current; - - GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */ - - /** Should fixed-function texturing be implemented with a fragment prog? */ - GLboolean _MaintainTexEnvProgram; - - /** Program to emulate fixed-function texture env/combine (see above) */ - struct gl_fragment_program *_TexEnvProgram; - - /** Cache of fixed-function programs */ - struct gl_program_cache *Cache; -}; - - -/** - * ATI_fragment_shader runtime state - */ -#define ATI_FS_INPUT_PRIMARY 0 -#define ATI_FS_INPUT_SECONDARY 1 - -struct atifs_instruction; -struct atifs_setupinst; - -/** - * ATI fragment shader - */ -struct ati_fragment_shader -{ - GLuint Id; - GLint RefCount; - struct atifs_instruction *Instructions[2]; - struct atifs_setupinst *SetupInst[2]; - GLfloat Constants[8][4]; - GLbitfield LocalConstDef; /**< Indicates which constants have been set */ - GLubyte numArithInstr[2]; - GLubyte regsAssigned[2]; - GLubyte NumPasses; /**< 1 or 2 */ - GLubyte cur_pass; - GLubyte last_optype; - GLboolean interpinp1; - GLboolean isValid; - GLuint swizzlerq; -}; - -/** - * Context state for GL_ATI_fragment_shader - */ -struct gl_ati_fragment_shader_state -{ - GLboolean Enabled; - GLboolean _Enabled; /**< enabled and valid shader? */ - GLboolean Compiling; - GLfloat GlobalConstants[8][4]; - struct ati_fragment_shader *Current; -}; - - -/** - * Occlusion/timer query object. - */ -struct gl_query_object -{ - GLenum Target; /**< The query target, when active */ - GLuint Id; /**< hash table ID/name */ - GLuint64EXT Result; /**< the counter */ - GLboolean Active; /**< inside Begin/EndQuery */ - GLboolean Ready; /**< result is ready? */ -}; - - -/** - * Context state for query objects. - */ -struct gl_query_state -{ - struct _mesa_HashTable *QueryObjects; - struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */ - struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */ - - /** GL_NV_conditional_render */ - struct gl_query_object *CondRenderQuery; - - /** GL_EXT_transform_feedback */ - struct gl_query_object *PrimitivesGenerated; - struct gl_query_object *PrimitivesWritten; - - /** GL_ARB_timer_query */ - struct gl_query_object *TimeElapsed; - - GLenum CondRenderMode; -}; - - -/** Sync object state */ -struct gl_sync_object { - struct simple_node link; - GLenum Type; /**< GL_SYNC_FENCE */ - GLuint Name; /**< Fence name */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; /**< Object was deleted while there were still - * live references (e.g., sync not yet finished) - */ - GLenum SyncCondition; - GLbitfield Flags; /**< Flags passed to glFenceSync */ - GLuint StatusFlag:1; /**< Has the sync object been signaled? */ -}; - - -/** Set by #pragma directives */ -struct gl_sl_pragmas -{ - GLboolean IgnoreOptimize; /**< ignore #pragma optimize(on/off) ? */ - GLboolean IgnoreDebug; /**< ignore #pragma debug(on/off) ? */ - GLboolean Optimize; /**< defaults on */ - GLboolean Debug; /**< defaults off */ -}; - - -/** - * A GLSL vertex or fragment shader object. - */ -struct gl_shader -{ - GLenum Type; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */ - GLuint Name; /**< AKA the handle */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; - GLboolean CompileStatus; - const GLchar *Source; /**< Source code string */ - GLuint SourceChecksum; /**< for debug/logging purposes */ - struct gl_program *Program; /**< Post-compile assembly code */ - GLchar *InfoLog; - struct gl_sl_pragmas Pragmas; - - unsigned Version; /**< GLSL version used for linking */ - - struct exec_list *ir; - struct glsl_symbol_table *symbols; - - /** Shaders containing built-in functions that are used for linking. */ - struct gl_shader *builtins_to_link[16]; - unsigned num_builtins_to_link; -}; - - -/** - * A GLSL program object. - * Basically a linked collection of vertex and fragment shaders. - */ -struct gl_shader_program -{ - GLenum Type; /**< Always GL_SHADER_PROGRAM (internal token) */ - GLuint Name; /**< aka handle or ID */ - GLint RefCount; /**< Reference count */ - GLboolean DeletePending; - - GLuint NumShaders; /**< number of attached shaders */ - struct gl_shader **Shaders; /**< List of attached the shaders */ - - /** User-defined attribute bindings (glBindAttribLocation) */ - struct gl_program_parameter_list *Attributes; - - /** Transform feedback varyings */ - struct { - GLenum BufferMode; - GLuint NumVarying; - GLchar **VaryingNames; /**< Array [NumVarying] of char * */ - } TransformFeedback; - - /** Geometry shader state - copied into gl_geometry_program at link time */ - struct { - GLint VerticesOut; - GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB, - GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */ - GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */ - } Geom; - - /* post-link info: */ - struct gl_vertex_program *VertexProgram; /**< Linked vertex program */ - struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */ - struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */ - struct gl_uniform_list *Uniforms; - struct gl_program_parameter_list *Varying; - GLboolean LinkStatus; /**< GL_LINK_STATUS */ - GLboolean Validated; - GLboolean _Used; /**< Ever used for drawing? */ - GLchar *InfoLog; - - unsigned Version; /**< GLSL version used for linking */ - - /** - * Per-stage shaders resulting from the first stage of linking. - * - * Set of linked shaders for this program. The array is accessed using the - * \c MESA_SHADER_* defines. Entries for non-existent stages will be - * \c NULL. - */ - struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES]; -}; - - -#define GLSL_DUMP 0x1 /**< Dump shaders to stdout */ -#define GLSL_LOG 0x2 /**< Write shaders to files */ -#define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */ -#define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */ -#define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */ -#define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */ -#define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */ -#define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */ - - -/** - * Context state for GLSL vertex/fragment shaders. - */ -struct gl_shader_state -{ - /** - * Programs used for rendering - * - * There is a separate program set for each shader stage. If - * GL_EXT_separate_shader_objects is not supported, each of these must point - * to \c NULL or to the same program. - */ - struct gl_shader_program *CurrentVertexProgram; - struct gl_shader_program *CurrentGeometryProgram; - struct gl_shader_program *CurrentFragmentProgram; - - /** - * Program used by glUniform calls. - * - * Explicitly set by \c glUseProgram and \c glActiveProgramEXT. - */ - struct gl_shader_program *ActiveProgram; - - void *MemPool; - - GLbitfield Flags; /**< Mask of GLSL_x flags */ -}; - -/** - * Compiler options for a single GLSL shaders type - */ -struct gl_shader_compiler_options -{ - /** Driver-selectable options: */ - GLboolean EmitCondCodes; /**< Use condition codes? */ - GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */ - /** - * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't - * support control flow. - */ - GLboolean EmitNoIfs; - GLboolean EmitNoLoops; - GLboolean EmitNoFunctions; - GLboolean EmitNoCont; /**< Emit CONT opcode? */ - GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */ - GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */ - GLboolean EmitNoPow; /**< Emit POW opcodes? */ - - /** - * \name Forms of indirect addressing the driver cannot do. - */ - /*@{*/ - GLboolean EmitNoIndirectInput; /**< No indirect addressing of inputs */ - GLboolean EmitNoIndirectOutput; /**< No indirect addressing of outputs */ - GLboolean EmitNoIndirectTemp; /**< No indirect addressing of temps */ - GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */ - /*@}*/ - - GLuint MaxUnrollIterations; - - struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */ -}; - -/** - * Transform feedback object state - */ -struct gl_transform_feedback_object -{ - GLuint Name; /**< AKA the object ID */ - GLint RefCount; - GLboolean Active; /**< Is transform feedback enabled? */ - GLboolean Paused; /**< Is transform feedback paused? */ - - /** The feedback buffers */ - GLuint BufferNames[MAX_FEEDBACK_ATTRIBS]; - struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS]; - - /** Start of feedback data in dest buffer */ - GLintptr Offset[MAX_FEEDBACK_ATTRIBS]; - /** Max data to put into dest buffer (in bytes) */ - GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS]; -}; - - -/** - * Context state for transform feedback. - */ -struct gl_transform_feedback -{ - GLenum Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */ - - GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */ - - /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */ - struct gl_buffer_object *CurrentBuffer; - - /** The table of all transform feedback objects */ - struct _mesa_HashTable *Objects; - - /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */ - struct gl_transform_feedback_object *CurrentObject; - - /** The default xform-fb object (Name==0) */ - struct gl_transform_feedback_object *DefaultObject; -}; - - - -/** - * State which can be shared by multiple contexts: - */ -struct gl_shared_state -{ - _glthread_Mutex Mutex; /**< for thread safety */ - GLint RefCount; /**< Reference count */ - struct _mesa_HashTable *DisplayList; /**< Display lists hash table */ - struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */ - - /** Default texture objects (shared by all texture units) */ - struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS]; - - /** Fallback texture used when a bound texture is incomplete */ - struct gl_texture_object *FallbackTex; - - /** - * \name Thread safety and statechange notification for texture - * objects. - * - * \todo Improve the granularity of locking. - */ - /*@{*/ - _glthread_Mutex TexMutex; /**< texobj thread safety */ - GLuint TextureStateStamp; /**< state notification for shared tex */ - /*@}*/ - - /** Default buffer object for vertex arrays that aren't in VBOs */ - struct gl_buffer_object *NullBufferObj; - - /** - * \name Vertex/geometry/fragment programs - */ - /*@{*/ - struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */ - struct gl_vertex_program *DefaultVertexProgram; - struct gl_fragment_program *DefaultFragmentProgram; - struct gl_geometry_program *DefaultGeometryProgram; - /*@}*/ - - /* GL_ATI_fragment_shader */ - struct _mesa_HashTable *ATIShaders; - struct ati_fragment_shader *DefaultFragmentShader; - - struct _mesa_HashTable *BufferObjects; - - /** Table of both gl_shader and gl_shader_program objects */ - struct _mesa_HashTable *ShaderObjects; - - /* GL_EXT_framebuffer_object */ - struct _mesa_HashTable *RenderBuffers; - struct _mesa_HashTable *FrameBuffers; - - /* GL_ARB_sync */ - struct simple_node SyncObjects; - - void *DriverData; /**< Device driver shared state */ -}; - - - - -/** - * A renderbuffer stores colors or depth values or stencil values. - * A framebuffer object will have a collection of these. - * Data are read/written to the buffer with a handful of Get/Put functions. - * - * Instances of this object are allocated with the Driver's NewRenderbuffer - * hook. Drivers will likely wrap this class inside a driver-specific - * class to simulate inheritance. - */ -struct gl_renderbuffer -{ -#define RB_MAGIC 0xaabbccdd - int Magic; /** XXX TEMPORARY DEBUG INFO */ - _glthread_Mutex Mutex; /**< for thread safety */ - GLuint ClassID; /**< Useful for drivers */ - GLuint Name; - GLint RefCount; - GLuint Width, Height; - GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */ - - GLenum InternalFormat; /**< The user-specified format */ - GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or - GL_STENCIL_INDEX. */ - gl_format Format; /**< The actual renderbuffer memory format */ - - GLubyte NumSamples; - - GLenum DataType; /**< Type of values passed to the Get/Put functions */ - GLvoid *Data; /**< This may not be used by some kinds of RBs */ - - GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */ - - /* Used to wrap one renderbuffer around another: */ - struct gl_renderbuffer *Wrapped; - - /* Delete this renderbuffer */ - void (*Delete)(struct gl_renderbuffer *rb); - - /* Allocate new storage for this renderbuffer */ - GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, - GLuint width, GLuint height); - - /* Lock/Unlock are called before/after calling the Get/Put functions. - * Not sure this is the right place for these yet. - void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb); - void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb); - */ - - /* Return a pointer to the element/pixel at (x,y). - * Should return NULL if the buffer memory can't be directly addressed. - */ - void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLint x, GLint y); - - /* Get/Read a row of values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values); - - /* Get/Read values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values); - - /* Put/Write a row of values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask); - - /* Put/Write a row of RGB values. This is a special-case routine that's - * only used for RGBA renderbuffers when the source data is GL_RGB. That's - * a common case for glDrawPixels and some triangle routines. - * The values will be of format GL_RGB and type DataType. - */ - void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask); - - - /* Put/Write a row of identical values. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *value, const GLubyte *mask); - - /* Put/Write values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask); - /* Put/Write identical values at arbitrary locations. - * The values will be of format _BaseFormat and type DataType. - */ - void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *value, const GLubyte *mask); -}; - - -/** - * A renderbuffer attachment points to either a texture object (and specifies - * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer. - */ -struct gl_renderbuffer_attachment -{ - GLenum Type; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */ - GLboolean Complete; - - /** - * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the - * application supplied renderbuffer object. - */ - struct gl_renderbuffer *Renderbuffer; - - /** - * If \c Type is \c GL_TEXTURE, this stores a pointer to the application - * supplied texture object. - */ - struct gl_texture_object *Texture; - GLuint TextureLevel; /**< Attached mipmap level. */ - GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */ - GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D - * and 2D array textures */ -}; - - -/** - * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc). - * In C++ terms, think of this as a base class from which device drivers - * will make derived classes. - */ -struct gl_framebuffer -{ - _glthread_Mutex Mutex; /**< for thread safety */ - /** - * If zero, this is a window system framebuffer. If non-zero, this - * is a FBO framebuffer; note that for some devices (i.e. those with - * a natural pixel coordinate system for FBOs that differs from the - * OpenGL/Mesa coordinate system), this means that the viewport, - * polygon face orientation, and polygon stipple will have to be inverted. - */ - GLuint Name; - - GLint RefCount; - GLboolean DeletePending; - - /** - * The framebuffer's visual. Immutable if this is a window system buffer. - * Computed from attachments if user-made FBO. - */ - struct gl_config Visual; - - GLboolean Initialized; - - GLuint Width, Height; /**< size of frame buffer in pixels */ - - /** \name Drawing bounds (Intersection of buffer size and scissor box) */ - /*@{*/ - GLint _Xmin, _Xmax; /**< inclusive */ - GLint _Ymin, _Ymax; /**< exclusive */ - /*@}*/ - - /** \name Derived Z buffer stuff */ - /*@{*/ - GLuint _DepthMax; /**< Max depth buffer value */ - GLfloat _DepthMaxF; /**< Float max depth buffer value */ - GLfloat _MRD; /**< minimum resolvable difference in Z values */ - /*@}*/ - - /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */ - GLenum _Status; - - /** Integer color values */ - GLboolean _IntegerColor; - - /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */ - struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT]; - - /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER - * attribute group and GL_PIXEL attribute group, respectively. - */ - GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS]; - GLenum ColorReadBuffer; - - /** Computed from ColorDraw/ReadBuffer above */ - GLuint _NumColorDrawBuffers; - GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */ - GLint _ColorReadBufferIndex; /* -1 = None */ - struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS]; - struct gl_renderbuffer *_ColorReadBuffer; - - /** The Actual depth/stencil buffers to use. May be wrappers around the - * depth/stencil buffers attached above. */ - struct gl_renderbuffer *_DepthBuffer; - struct gl_renderbuffer *_StencilBuffer; - - /** Delete this framebuffer */ - void (*Delete)(struct gl_framebuffer *fb); -}; - - -/** - * Precision info for shader datatypes. See glGetShaderPrecisionFormat(). - */ -struct gl_precision -{ - GLushort RangeMin; /**< min value exponent */ - GLushort RangeMax; /**< max value exponent */ - GLushort Precision; /**< number of mantissa bits */ -}; - - -/** - * Limits for vertex, geometry and fragment programs/shaders. - */ -struct gl_program_constants -{ - /* logical limits */ - GLuint MaxInstructions; - GLuint MaxAluInstructions; - GLuint MaxTexInstructions; - GLuint MaxTexIndirections; - GLuint MaxAttribs; - GLuint MaxTemps; - GLuint MaxAddressRegs; - GLuint MaxAddressOffset; /**< [-MaxAddressOffset, MaxAddressOffset-1] */ - GLuint MaxParameters; - GLuint MaxLocalParams; - GLuint MaxEnvParams; - /* native/hardware limits */ - GLuint MaxNativeInstructions; - GLuint MaxNativeAluInstructions; - GLuint MaxNativeTexInstructions; - GLuint MaxNativeTexIndirections; - GLuint MaxNativeAttribs; - GLuint MaxNativeTemps; - GLuint MaxNativeAddressRegs; - GLuint MaxNativeParameters; - /* For shaders */ - GLuint MaxUniformComponents; /**< Usually == MaxParameters * 4 */ - /* ES 2.0 and GL_ARB_ES2_compatibility */ - struct gl_precision LowFloat, MediumFloat, HighFloat; - struct gl_precision LowInt, MediumInt, HighInt; -}; - - -/** - * Constants which may be overridden by device driver during context creation - * but are never changed after that. - */ -struct gl_constants -{ - GLint MaxTextureMbytes; /**< Max memory per image, in MB */ - GLint MaxTextureLevels; /**< Max mipmap levels. */ - GLint Max3DTextureLevels; /**< Max mipmap levels for 3D textures */ - GLint MaxCubeTextureLevels; /**< Max mipmap levels for cube textures */ - GLint MaxArrayTextureLayers; /**< Max layers in array textures */ - GLint MaxTextureRectSize; /**< Max rectangle texture size, in pixes */ - GLuint MaxTextureCoordUnits; - GLuint MaxTextureImageUnits; - GLuint MaxVertexTextureImageUnits; - GLuint MaxCombinedTextureImageUnits; - GLuint MaxGeometryTextureImageUnits; - GLuint MaxTextureUnits; /**< = MIN(CoordUnits, ImageUnits) */ - GLfloat MaxTextureMaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ - GLfloat MaxTextureLodBias; /**< GL_EXT_texture_lod_bias */ - - GLuint MaxArrayLockSize; - - GLint SubPixelBits; - - GLfloat MinPointSize, MaxPointSize; /**< aliased */ - GLfloat MinPointSizeAA, MaxPointSizeAA; /**< antialiased */ - GLfloat PointSizeGranularity; - GLfloat MinLineWidth, MaxLineWidth; /**< aliased */ - GLfloat MinLineWidthAA, MaxLineWidthAA; /**< antialiased */ - GLfloat LineWidthGranularity; - - GLuint MaxColorTableSize; - - GLuint MaxClipPlanes; - GLuint MaxLights; - GLfloat MaxShininess; /**< GL_NV_light_max_exponent */ - GLfloat MaxSpotExponent; /**< GL_NV_light_max_exponent */ - - GLuint MaxViewportWidth, MaxViewportHeight; - - struct gl_program_constants VertexProgram; /**< GL_ARB_vertex_program */ - struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */ - struct gl_program_constants GeometryProgram; /**< GL_ARB_geometry_shader4 */ - GLuint MaxProgramMatrices; - GLuint MaxProgramMatrixStackDepth; - - /** vertex array / buffer object bounds checking */ - GLboolean CheckArrayBounds; - - GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */ - - GLuint MaxColorAttachments; /**< GL_EXT_framebuffer_object */ - GLuint MaxRenderbufferSize; /**< GL_EXT_framebuffer_object */ - GLuint MaxSamples; /**< GL_ARB_framebuffer_object */ - - /** Number of varying vectors between vertex and fragment shaders */ - GLuint MaxVarying; - GLuint MaxVertexVaryingComponents; /**< Between vert and geom shader */ - GLuint MaxGeometryVaryingComponents; /**< Between geom and frag shader */ - - /** GL_ARB_geometry_shader4 */ - GLuint MaxGeometryOutputVertices; - GLuint MaxGeometryTotalOutputComponents; - - GLuint GLSLVersion; /**< GLSL version supported (ex: 120 = 1.20) */ - - /** Which texture units support GL_ATI_envmap_bumpmap as targets */ - GLbitfield SupportedBumpUnits; - - /** - * Maximum amount of time, measured in nanseconds, that the server can wait. - */ - GLuint64 MaxServerWaitTimeout; - - /** GL_EXT_provoking_vertex */ - GLboolean QuadsFollowProvokingVertexConvention; - - /** OpenGL version 3.0 */ - GLbitfield ContextFlags; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */ - - /** OpenGL version 3.2 */ - GLbitfield ProfileMask; /**< Mask of CONTEXT_x_PROFILE_BIT */ - - /** GL_EXT_transform_feedback */ - GLuint MaxTransformFeedbackSeparateAttribs; - GLuint MaxTransformFeedbackSeparateComponents; - GLuint MaxTransformFeedbackInterleavedComponents; - - /** GL_EXT_gpu_shader4 */ - GLint MinProgramTexelOffset, MaxProgramTexelOffset; - - /* GL_EXT_framebuffer_sRGB */ - GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */ -}; - - -/** - * Enable flag for each OpenGL extension. Different device drivers will - * enable different extensions at runtime. - */ -struct gl_extensions -{ - GLboolean dummy; /* don't remove this! */ - GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */ - GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */ - GLboolean ARB_ES2_compatibility; - GLboolean ARB_blend_func_extended; - GLboolean ARB_copy_buffer; - GLboolean ARB_depth_buffer_float; - GLboolean ARB_depth_clamp; - GLboolean ARB_depth_texture; - GLboolean ARB_draw_buffers; - GLboolean ARB_draw_buffers_blend; - GLboolean ARB_draw_elements_base_vertex; - GLboolean ARB_draw_instanced; - GLboolean ARB_fragment_coord_conventions; - GLboolean ARB_fragment_program; - GLboolean ARB_fragment_program_shadow; - GLboolean ARB_fragment_shader; - GLboolean ARB_framebuffer_object; - GLboolean ARB_explicit_attrib_location; - GLboolean ARB_geometry_shader4; - GLboolean ARB_half_float_pixel; - GLboolean ARB_half_float_vertex; - GLboolean ARB_instanced_arrays; - GLboolean ARB_map_buffer_range; - GLboolean ARB_multisample; - GLboolean ARB_multitexture; - GLboolean ARB_occlusion_query; - GLboolean ARB_occlusion_query2; - GLboolean ARB_point_sprite; - GLboolean ARB_sampler_objects; - GLboolean ARB_seamless_cube_map; - GLboolean ARB_shader_objects; - GLboolean ARB_shader_stencil_export; - GLboolean ARB_shading_language_100; - GLboolean ARB_shadow; - GLboolean ARB_shadow_ambient; - GLboolean ARB_sync; - GLboolean ARB_texture_border_clamp; - GLboolean ARB_texture_buffer_object; - GLboolean ARB_texture_compression; - GLboolean ARB_texture_compression_rgtc; - GLboolean ARB_texture_cube_map; - GLboolean ARB_texture_env_combine; - GLboolean ARB_texture_env_crossbar; - GLboolean ARB_texture_env_dot3; - GLboolean ARB_texture_float; - GLboolean ARB_texture_mirrored_repeat; - GLboolean ARB_texture_multisample; - GLboolean ARB_texture_non_power_of_two; - GLboolean ARB_texture_rg; - GLboolean ARB_texture_rgb10_a2ui; - GLboolean ARB_timer_query; - GLboolean ARB_transform_feedback2; - GLboolean ARB_transpose_matrix; - GLboolean ARB_uniform_buffer_object; - GLboolean ARB_vertex_array_object; - GLboolean ARB_vertex_buffer_object; - GLboolean ARB_vertex_program; - GLboolean ARB_vertex_shader; - GLboolean ARB_vertex_type_2_10_10_10_rev; - GLboolean ARB_window_pos; - GLboolean EXT_abgr; - GLboolean EXT_bgra; - GLboolean EXT_blend_color; - GLboolean EXT_blend_equation_separate; - GLboolean EXT_blend_func_separate; - GLboolean EXT_blend_logic_op; - GLboolean EXT_blend_minmax; - GLboolean EXT_blend_subtract; - GLboolean EXT_clip_volume_hint; - GLboolean EXT_compiled_vertex_array; - GLboolean EXT_copy_texture; - GLboolean EXT_depth_bounds_test; - GLboolean EXT_draw_buffers2; - GLboolean EXT_draw_range_elements; - GLboolean EXT_fog_coord; - GLboolean EXT_framebuffer_blit; - GLboolean EXT_framebuffer_multisample; - GLboolean EXT_framebuffer_object; - GLboolean EXT_framebuffer_sRGB; - GLboolean EXT_gpu_program_parameters; - GLboolean EXT_gpu_shader4; - GLboolean EXT_multi_draw_arrays; - GLboolean EXT_paletted_texture; - GLboolean EXT_packed_depth_stencil; - GLboolean EXT_packed_float; - GLboolean EXT_packed_pixels; - GLboolean EXT_pixel_buffer_object; - GLboolean EXT_point_parameters; - GLboolean EXT_polygon_offset; - GLboolean EXT_provoking_vertex; - GLboolean EXT_rescale_normal; - GLboolean EXT_shadow_funcs; - GLboolean EXT_secondary_color; - GLboolean EXT_separate_shader_objects; - GLboolean EXT_separate_specular_color; - GLboolean EXT_shared_texture_palette; - GLboolean EXT_stencil_wrap; - GLboolean EXT_stencil_two_side; - GLboolean EXT_subtexture; - GLboolean EXT_texture; - GLboolean EXT_texture_object; - GLboolean EXT_texture3D; - GLboolean EXT_texture_array; - GLboolean EXT_texture_compression_latc; - GLboolean EXT_texture_compression_s3tc; - GLboolean EXT_texture_env_add; - GLboolean EXT_texture_env_combine; - GLboolean EXT_texture_env_dot3; - GLboolean EXT_texture_filter_anisotropic; - GLboolean EXT_texture_integer; - GLboolean EXT_texture_lod_bias; - GLboolean EXT_texture_mirror_clamp; - GLboolean EXT_texture_shared_exponent; - GLboolean EXT_texture_sRGB; - GLboolean EXT_texture_sRGB_decode; - GLboolean EXT_texture_swizzle; - GLboolean EXT_transform_feedback; - GLboolean EXT_timer_query; - GLboolean EXT_vertex_array; - GLboolean EXT_vertex_array_bgra; - GLboolean EXT_vertex_array_set; - GLboolean OES_standard_derivatives; - /* vendor extensions */ - GLboolean AMD_conservative_depth; - GLboolean APPLE_client_storage; - GLboolean APPLE_packed_pixels; - GLboolean APPLE_vertex_array_object; - GLboolean APPLE_object_purgeable; - GLboolean ATI_envmap_bumpmap; - GLboolean ATI_texture_compression_3dc; - GLboolean ATI_texture_mirror_once; - GLboolean ATI_texture_env_combine3; - GLboolean ATI_fragment_shader; - GLboolean ATI_separate_stencil; - GLboolean IBM_rasterpos_clip; - GLboolean IBM_multimode_draw_arrays; - GLboolean MESA_pack_invert; - GLboolean MESA_resize_buffers; - GLboolean MESA_ycbcr_texture; - GLboolean MESA_texture_array; - GLboolean MESA_texture_signed_rgba; - GLboolean NV_blend_square; - GLboolean NV_conditional_render; - GLboolean NV_fragment_program; - GLboolean NV_fragment_program_option; - GLboolean NV_light_max_exponent; - GLboolean NV_point_sprite; - GLboolean NV_primitive_restart; - GLboolean NV_texture_barrier; - GLboolean NV_texgen_reflection; - GLboolean NV_texture_env_combine4; - GLboolean NV_texture_rectangle; - GLboolean NV_vertex_program; - GLboolean NV_vertex_program1_1; - GLboolean OES_read_format; - GLboolean SGIS_generate_mipmap; - GLboolean SGIS_texture_edge_clamp; - GLboolean SGIS_texture_lod; - GLboolean TDFX_texture_compression_FXT1; - GLboolean S3_s3tc; - GLboolean OES_EGL_image; - GLboolean OES_draw_texture; - GLboolean EXT_texture_format_BGRA8888; - GLboolean extension_sentinel; - /** The extension string */ - const GLubyte *String; - /** Number of supported extensions */ - GLuint Count; -}; - - -/** - * A stack of matrices (projection, modelview, color, texture, etc). - */ -struct gl_matrix_stack -{ - GLmatrix *Top; /**< points into Stack */ - GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */ - GLuint Depth; /**< 0 <= Depth < MaxDepth */ - GLuint MaxDepth; /**< size of Stack[] array */ - GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */ -}; - - -/** - * \name Bits for image transfer operations - * \sa __struct gl_contextRec::ImageTransferState. - */ -/*@{*/ -#define IMAGE_SCALE_BIAS_BIT 0x1 -#define IMAGE_SHIFT_OFFSET_BIT 0x2 -#define IMAGE_MAP_COLOR_BIT 0x4 -#define IMAGE_CLAMP_BIT 0x800 - - -/** Pixel Transfer ops */ -#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \ - IMAGE_SHIFT_OFFSET_BIT | \ - IMAGE_MAP_COLOR_BIT) - -/** - * \name Bits to indicate what state has changed. - */ -/*@{*/ -#define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */ -#define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */ -#define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */ -#define _NEW_COLOR (1 << 3) /**< gl_context::Color */ -#define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */ -#define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */ -#define _NEW_FOG (1 << 6) /**< gl_context::Fog */ -#define _NEW_HINT (1 << 7) /**< gl_context::Hint */ -#define _NEW_LIGHT (1 << 8) /**< gl_context::Light */ -#define _NEW_LINE (1 << 9) /**< gl_context::Line */ -#define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */ -#define _NEW_POINT (1 << 11) /**< gl_context::Point */ -#define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */ -#define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */ -#define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */ -#define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */ -#define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */ -#define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */ -#define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */ -#define _NEW_PACKUNPACK (1 << 19) /**< gl_context::Pack, Unpack */ -#define _NEW_ARRAY (1 << 20) /**< gl_context::Array */ -#define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */ -#define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */ -#define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */ -#define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */ -#define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */ -#define _NEW_PROGRAM (1 << 26) /**< New program/shader state */ -#define _NEW_PROGRAM_CONSTANTS (1 << 27) -#define _NEW_BUFFER_OBJECT (1 << 28) -#define _NEW_ALL ~0 -/*@}*/ - - -/** - * \name Bits to track array state changes - * - * Also used to summarize array enabled. - */ -/*@{*/ -#define _NEW_ARRAY_VERTEX VERT_BIT_POS -#define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT -#define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL -#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0 -#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1 -#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG -#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX -#define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG -#define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */ -#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0 -#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1 -#define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2 -#define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3 -#define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4 -#define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5 -#define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6 -#define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7 -#define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */ -#define _NEW_ARRAY_ALL 0xffffffff - - -#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i)) -#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i)) -/*@}*/ - - - -/** - * \name A bunch of flags that we think might be useful to drivers. - * - * Set in the __struct gl_contextRec::_TriangleCaps bitfield. - */ -/*@{*/ -#define DD_FLATSHADE 0x1 -#define DD_SEPARATE_SPECULAR 0x2 -#define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */ -#define DD_TRI_LIGHT_TWOSIDE 0x8 -#define DD_TRI_UNFILLED 0x10 -#define DD_TRI_SMOOTH 0x20 -#define DD_TRI_STIPPLE 0x40 -#define DD_TRI_OFFSET 0x80 -#define DD_LINE_SMOOTH 0x100 -#define DD_LINE_STIPPLE 0x200 -#define DD_POINT_SMOOTH 0x400 -#define DD_POINT_ATTEN 0x800 -#define DD_TRI_TWOSTENCIL 0x1000 -/*@}*/ - - -/** - * \name Define the state changes under which each of these bits might change - */ -/*@{*/ -#define _DD_NEW_FLATSHADE _NEW_LIGHT -#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM) -#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON -#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT -#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON -#define _DD_NEW_TRI_SMOOTH _NEW_POLYGON -#define _DD_NEW_TRI_STIPPLE _NEW_POLYGON -#define _DD_NEW_TRI_OFFSET _NEW_POLYGON -#define _DD_NEW_LINE_SMOOTH _NEW_LINE -#define _DD_NEW_LINE_STIPPLE _NEW_LINE -#define _DD_NEW_LINE_WIDTH _NEW_LINE -#define _DD_NEW_POINT_SMOOTH _NEW_POINT -#define _DD_NEW_POINT_SIZE _NEW_POINT -#define _DD_NEW_POINT_ATTEN _NEW_POINT -/*@}*/ - - -/** - * Composite state flags - */ -/*@{*/ -#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \ - _NEW_TEXTURE | \ - _NEW_POINT | \ - _NEW_PROGRAM | \ - _NEW_MODELVIEW) -/*@}*/ - - - - -/* This has to be included here. */ -#include "dd.h" - - -/** - * Display list flags. - * Strictly this is a tnl-private concept, but it doesn't seem - * worthwhile adding a tnl private structure just to hold this one bit - * of information: - */ -#define DLIST_DANGLING_REFS 0x1 - - -/** Opaque declaration of display list payload data type */ -union gl_dlist_node; - - -/** - * Provide a location where information about a display list can be - * collected. Could be extended with driverPrivate structures, - * etc. in the future. - */ -struct gl_display_list -{ - GLuint Name; - GLbitfield Flags; /**< DLIST_x flags */ - /** The dlist commands are in a linked list of nodes */ - union gl_dlist_node *Head; -}; - - -/** - * State used during display list compilation and execution. - */ -struct gl_dlist_state -{ - GLuint CallDepth; /**< Current recursion calling depth */ - - struct gl_display_list *CurrentList; /**< List currently being compiled */ - union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */ - GLuint CurrentPos; /**< Index into current block of nodes */ - - GLvertexformat ListVtxfmt; - - GLubyte ActiveAttribSize[VERT_ATTRIB_MAX]; - GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4]; - - GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX]; - GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4]; - - GLubyte ActiveIndex; - GLfloat CurrentIndex; - - GLubyte ActiveEdgeFlag; - GLboolean CurrentEdgeFlag; - - struct { - /* State known to have been set by the currently-compiling display - * list. Used to eliminate some redundant state changes. - */ - GLenum ShadeModel; - } Current; -}; - - -/** - * Enum for the OpenGL APIs we know about and may support. - */ -typedef enum -{ - API_OPENGL, - API_OPENGLES, - API_OPENGLES2 -} gl_api; - - -/** - * Mesa rendering context. - * - * This is the central context data structure for Mesa. Almost all - * OpenGL state is contained in this structure. - * Think of this as a base class from which device drivers will derive - * sub classes. - * - * The struct gl_context typedef names this structure. - */ -struct gl_context -{ - /** State possibly shared with other contexts in the address space */ - struct gl_shared_state *Shared; - - /** \name API function pointer tables */ - /*@{*/ - gl_api API; - struct _glapi_table *Save; /**< Display list save functions */ - struct _glapi_table *Exec; /**< Execute functions */ - struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */ - /*@}*/ - - struct gl_config Visual; - struct gl_framebuffer *DrawBuffer; /**< buffer for writing */ - struct gl_framebuffer *ReadBuffer; /**< buffer for reading */ - struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */ - struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */ - - /** - * Device driver function pointer table - */ - struct dd_function_table Driver; - - void *DriverCtx; /**< Points to device driver context/state */ - - /** Core/Driver constants */ - struct gl_constants Const; - - /** \name The various 4x4 matrix stacks */ - /*@{*/ - struct gl_matrix_stack ModelviewMatrixStack; - struct gl_matrix_stack ProjectionMatrixStack; - struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS]; - struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; - struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */ - /*@}*/ - - /** Combined modelview and projection matrix */ - GLmatrix _ModelProjectMatrix; - - /** \name Display lists */ - struct gl_dlist_state ListState; - - GLboolean ExecuteFlag; /**< Execute GL commands? */ - GLboolean CompileFlag; /**< Compile GL commands into display list? */ - - /** Extension information */ - struct gl_extensions Extensions; - - /** Version info */ - GLuint VersionMajor, VersionMinor; - char *VersionString; - - /** \name State attribute stack (for glPush/PopAttrib) */ - /*@{*/ - GLuint AttribStackDepth; - struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH]; - /*@}*/ - - /** \name Renderer attribute groups - * - * We define a struct for each attribute group to make pushing and popping - * attributes easy. Also it's a good organization. - */ - /*@{*/ - struct gl_accum_attrib Accum; /**< Accum buffer attributes */ - struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */ - struct gl_current_attrib Current; /**< Current attributes */ - struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */ - struct gl_eval_attrib Eval; /**< Eval attributes */ - struct gl_fog_attrib Fog; /**< Fog attributes */ - struct gl_hint_attrib Hint; /**< Hint attributes */ - struct gl_light_attrib Light; /**< Light attributes */ - struct gl_line_attrib Line; /**< Line attributes */ - struct gl_list_attrib List; /**< List attributes */ - struct gl_multisample_attrib Multisample; - struct gl_pixel_attrib Pixel; /**< Pixel attributes */ - struct gl_point_attrib Point; /**< Point attributes */ - struct gl_polygon_attrib Polygon; /**< Polygon attributes */ - GLuint PolygonStipple[32]; /**< Polygon stipple */ - struct gl_scissor_attrib Scissor; /**< Scissor attributes */ - struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */ - struct gl_texture_attrib Texture; /**< Texture attributes */ - struct gl_transform_attrib Transform; /**< Transformation attributes */ - struct gl_viewport_attrib Viewport; /**< Viewport attributes */ - /*@}*/ - - /** \name Client attribute stack */ - /*@{*/ - GLuint ClientAttribStackDepth; - struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH]; - /*@}*/ - - /** \name Client attribute groups */ - /*@{*/ - struct gl_array_attrib Array; /**< Vertex arrays */ - struct gl_pixelstore_attrib Pack; /**< Pixel packing */ - struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */ - struct gl_pixelstore_attrib DefaultPacking; /**< Default params */ - /*@}*/ - - /** \name Other assorted state (not pushed/popped on attribute stack) */ - /*@{*/ - struct gl_pixelmaps PixelMaps; - - struct gl_evaluators EvalMap; /**< All evaluators */ - struct gl_feedback Feedback; /**< Feedback */ - struct gl_selection Select; /**< Selection */ - - struct gl_program_state Program; /**< general program state */ - struct gl_vertex_program_state VertexProgram; - struct gl_fragment_program_state FragmentProgram; - struct gl_geometry_program_state GeometryProgram; - struct gl_ati_fragment_shader_state ATIFragmentShader; - - struct gl_shader_state Shader; /**< GLSL shader object state */ - struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES]; - - struct gl_query_state Query; /**< occlusion, timer queries */ - - struct gl_transform_feedback TransformFeedback; - - struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */ - struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */ - /*@}*/ - - struct gl_meta_state *Meta; /**< for "meta" operations */ - - /* GL_EXT_framebuffer_object */ - struct gl_renderbuffer *CurrentRenderbuffer; - - GLenum ErrorValue; /**< Last error code */ - - /** - * Recognize and silence repeated error debug messages in buggy apps. - */ - const char *ErrorDebugFmtString; - GLuint ErrorDebugCount; - - GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ - GLbitfield NewState; /**< bitwise-or of _NEW_* flags */ - - GLboolean ViewportInitialized; /**< has viewport size been initialized? */ - - GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */ - - /** \name Derived state */ - /*@{*/ - /** Bitwise-or of DD_* flags. Note that this bitfield may be used before - * state validation so they need to always be current. - */ - GLbitfield _TriangleCaps; - GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ - GLfloat _EyeZDir[3]; - GLfloat _ModelViewInvScale; - GLboolean _NeedEyeCoords; - GLboolean _ForceEyeCoords; - - GLuint TextureStateTimestamp; /**< detect changes to shared state */ - - struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */ - struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */ - /**@}*/ - - struct gl_list_extensions *ListExt; /**< driver dlist extensions */ - - /** \name For debugging/development only */ - /*@{*/ - GLboolean FirstTimeCurrent; - /*@}*/ - - /** software compression/decompression supported or not */ - GLboolean Mesa_DXTn; - - GLboolean TextureFormatSupported[MESA_FORMAT_COUNT]; - - /** - * Use dp4 (rather than mul/mad) instructions for position - * transformation? - */ - GLboolean mvp_with_dp4; - - /** - * \name Hooks for module contexts. - * - * These will eventually live in the driver or elsewhere. - */ - /*@{*/ - void *swrast_context; - void *swsetup_context; - void *swtnl_context; - void *swtnl_im; - struct st_context *st; - void *aelt_context; - /*@}*/ -}; - - -#ifdef DEBUG -extern int MESA_VERBOSE; -extern int MESA_DEBUG_FLAGS; -# define MESA_FUNCTION __FUNCTION__ -#else -# define MESA_VERBOSE 0 -# define MESA_DEBUG_FLAGS 0 -# define MESA_FUNCTION "a function" -# ifndef NDEBUG -# define NDEBUG -# endif -#endif - - -/** The MESA_VERBOSE var is a bitmask of these flags */ -enum _verbose -{ - VERBOSE_VARRAY = 0x0001, - VERBOSE_TEXTURE = 0x0002, - VERBOSE_MATERIAL = 0x0004, - VERBOSE_PIPELINE = 0x0008, - VERBOSE_DRIVER = 0x0010, - VERBOSE_STATE = 0x0020, - VERBOSE_API = 0x0040, - VERBOSE_DISPLAY_LIST = 0x0100, - VERBOSE_LIGHTING = 0x0200, - VERBOSE_PRIMS = 0x0400, - VERBOSE_VERTS = 0x0800, - VERBOSE_DISASSEM = 0x1000, - VERBOSE_DRAW = 0x2000, - VERBOSE_SWAPBUFFERS = 0x4000 -}; - - -/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */ -enum _debug -{ - DEBUG_ALWAYS_FLUSH = 0x1 -}; - - - -#endif /* MTYPES_H */ +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file mtypes.h
+ * Main Mesa data structures.
+ *
+ * Please try to mark derived values with a leading underscore ('_').
+ */
+
+#ifndef MTYPES_H
+#define MTYPES_H
+
+
+#include "main/glheader.h"
+#include "main/config.h"
+#include "main/mfeatures.h"
+#include "glapi/glapi.h"
+#include "math/m_matrix.h" /* GLmatrix */
+#include "main/simple_list.h" /* struct simple_node */
+#include "main/formats.h" /* MESA_FORMAT_COUNT */
+
+
+/**
+ * Color channel data type.
+ */
+#if CHAN_BITS == 8
+ typedef GLubyte GLchan;
+#define CHAN_MAX 255
+#define CHAN_MAXF 255.0F
+#define CHAN_TYPE GL_UNSIGNED_BYTE
+#elif CHAN_BITS == 16
+ typedef GLushort GLchan;
+#define CHAN_MAX 65535
+#define CHAN_MAXF 65535.0F
+#define CHAN_TYPE GL_UNSIGNED_SHORT
+#elif CHAN_BITS == 32
+ typedef GLfloat GLchan;
+#define CHAN_MAX 1.0
+#define CHAN_MAXF 1.0F
+#define CHAN_TYPE GL_FLOAT
+#else
+#error "illegal number of color channel bits"
+#endif
+
+
+/**
+ * Stencil buffer data type.
+ */
+#if STENCIL_BITS==8
+ typedef GLubyte GLstencil;
+#elif STENCIL_BITS==16
+ typedef GLushort GLstencil;
+#else
+# error "illegal number of stencil bits"
+#endif
+
+
+/**
+ * \name 64-bit extension of GLbitfield.
+ */
+/*@{*/
+typedef GLuint64 GLbitfield64;
+
+/** Set a single bit */
+#define BITFIELD64_BIT(b) ((GLbitfield64)1 << (b))
+
+
+/**
+ * \name Some forward type declarations
+ */
+/*@{*/
+struct _mesa_HashTable;
+struct gl_attrib_node;
+struct gl_list_extensions;
+struct gl_meta_state;
+struct gl_pixelstore_attrib;
+struct gl_program_cache;
+struct gl_texture_format;
+struct gl_texture_image;
+struct gl_texture_object;
+struct gl_context;
+struct st_context;
+/*@}*/
+
+
+/** Extra draw modes beyond GL_POINTS, GL_TRIANGLE_FAN, etc */
+#define PRIM_OUTSIDE_BEGIN_END (GL_POLYGON+1)
+#define PRIM_INSIDE_UNKNOWN_PRIM (GL_POLYGON+2)
+#define PRIM_UNKNOWN (GL_POLYGON+3)
+
+
+/**
+ * Shader stages. Note that these will become 5 with tessellation.
+ * These MUST have the same values as gallium's PIPE_SHADER_*
+ */
+typedef enum
+{
+ MESA_SHADER_VERTEX = 0,
+ MESA_SHADER_FRAGMENT = 1,
+ MESA_SHADER_GEOMETRY = 2,
+ MESA_SHADER_TYPES = 3
+} gl_shader_type;
+
+
+
+/**
+ * Indexes for vertex program attributes.
+ * GL_NV_vertex_program aliases generic attributes over the conventional
+ * attributes. In GL_ARB_vertex_program shader the aliasing is optional.
+ * In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
+ * generic attributes are distinct/separate).
+ */
+typedef enum
+{
+ VERT_ATTRIB_POS = 0,
+ VERT_ATTRIB_WEIGHT = 1,
+ VERT_ATTRIB_NORMAL = 2,
+ VERT_ATTRIB_COLOR0 = 3,
+ VERT_ATTRIB_COLOR1 = 4,
+ VERT_ATTRIB_FOG = 5,
+ VERT_ATTRIB_COLOR_INDEX = 6,
+ VERT_ATTRIB_POINT_SIZE = 6, /*alias*/
+ VERT_ATTRIB_EDGEFLAG = 7,
+ VERT_ATTRIB_TEX0 = 8,
+ VERT_ATTRIB_TEX1 = 9,
+ VERT_ATTRIB_TEX2 = 10,
+ VERT_ATTRIB_TEX3 = 11,
+ VERT_ATTRIB_TEX4 = 12,
+ VERT_ATTRIB_TEX5 = 13,
+ VERT_ATTRIB_TEX6 = 14,
+ VERT_ATTRIB_TEX7 = 15,
+ VERT_ATTRIB_GENERIC0 = 16,
+ VERT_ATTRIB_GENERIC1 = 17,
+ VERT_ATTRIB_GENERIC2 = 18,
+ VERT_ATTRIB_GENERIC3 = 19,
+ VERT_ATTRIB_GENERIC4 = 20,
+ VERT_ATTRIB_GENERIC5 = 21,
+ VERT_ATTRIB_GENERIC6 = 22,
+ VERT_ATTRIB_GENERIC7 = 23,
+ VERT_ATTRIB_GENERIC8 = 24,
+ VERT_ATTRIB_GENERIC9 = 25,
+ VERT_ATTRIB_GENERIC10 = 26,
+ VERT_ATTRIB_GENERIC11 = 27,
+ VERT_ATTRIB_GENERIC12 = 28,
+ VERT_ATTRIB_GENERIC13 = 29,
+ VERT_ATTRIB_GENERIC14 = 30,
+ VERT_ATTRIB_GENERIC15 = 31,
+ VERT_ATTRIB_MAX = 32
+} gl_vert_attrib;
+
+/**
+ * Bitflags for vertex attributes.
+ * These are used in bitfields in many places.
+ */
+/*@{*/
+#define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
+#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
+#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
+#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
+#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
+#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
+#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
+#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG)
+#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
+#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
+#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
+#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
+#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
+#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
+#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
+#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
+#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
+#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
+#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
+#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
+#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
+#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
+#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
+#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
+#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
+#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
+#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
+#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
+#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
+#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
+#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
+#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
+
+#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
+#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
+/*@}*/
+
+
+/**
+ * Indexes for vertex program result attributes
+ */
+typedef enum
+{
+ VERT_RESULT_HPOS = 0,
+ VERT_RESULT_COL0 = 1,
+ VERT_RESULT_COL1 = 2,
+ VERT_RESULT_FOGC = 3,
+ VERT_RESULT_TEX0 = 4,
+ VERT_RESULT_TEX1 = 5,
+ VERT_RESULT_TEX2 = 6,
+ VERT_RESULT_TEX3 = 7,
+ VERT_RESULT_TEX4 = 8,
+ VERT_RESULT_TEX5 = 9,
+ VERT_RESULT_TEX6 = 10,
+ VERT_RESULT_TEX7 = 11,
+ VERT_RESULT_PSIZ = 12,
+ VERT_RESULT_BFC0 = 13,
+ VERT_RESULT_BFC1 = 14,
+ VERT_RESULT_EDGE = 15,
+ VERT_RESULT_VAR0 = 16, /**< shader varying */
+ VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING)
+} gl_vert_result;
+
+
+/*********************************************/
+
+/**
+ * Indexes for geometry program attributes.
+ */
+typedef enum
+{
+ GEOM_ATTRIB_POSITION = 0,
+ GEOM_ATTRIB_COLOR0 = 1,
+ GEOM_ATTRIB_COLOR1 = 2,
+ GEOM_ATTRIB_SECONDARY_COLOR0 = 3,
+ GEOM_ATTRIB_SECONDARY_COLOR1 = 4,
+ GEOM_ATTRIB_FOG_FRAG_COORD = 5,
+ GEOM_ATTRIB_POINT_SIZE = 6,
+ GEOM_ATTRIB_CLIP_VERTEX = 7,
+ GEOM_ATTRIB_PRIMITIVE_ID = 8,
+ GEOM_ATTRIB_TEX_COORD = 9,
+
+ GEOM_ATTRIB_VAR0 = 16,
+ GEOM_ATTRIB_MAX = (GEOM_ATTRIB_VAR0 + MAX_VARYING)
+} gl_geom_attrib;
+
+/**
+ * Bitflags for geometry attributes.
+ * These are used in bitfields in many places.
+ */
+/*@{*/
+#define GEOM_BIT_COLOR0 (1 << GEOM_ATTRIB_COLOR0)
+#define GEOM_BIT_COLOR1 (1 << GEOM_ATTRIB_COLOR1)
+#define GEOM_BIT_SCOLOR0 (1 << GEOM_ATTRIB_SECONDARY_COLOR0)
+#define GEOM_BIT_SCOLOR1 (1 << GEOM_ATTRIB_SECONDARY_COLOR1)
+#define GEOM_BIT_TEX_COORD (1 << GEOM_ATTRIB_TEX_COORD)
+#define GEOM_BIT_FOG_COORD (1 << GEOM_ATTRIB_FOG_FRAG_COORD)
+#define GEOM_BIT_POSITION (1 << GEOM_ATTRIB_POSITION)
+#define GEOM_BIT_POINT_SIDE (1 << GEOM_ATTRIB_POINT_SIZE)
+#define GEOM_BIT_CLIP_VERTEX (1 << GEOM_ATTRIB_CLIP_VERTEX)
+#define GEOM_BIT_PRIM_ID (1 << GEOM_ATTRIB_PRIMITIVE_ID)
+#define GEOM_BIT_VAR0 (1 << GEOM_ATTRIB_VAR0)
+
+#define GEOM_BIT_VAR(g) (1 << (GEOM_BIT_VAR0 + (g)))
+/*@}*/
+
+
+/**
+ * Indexes for geometry program result attributes
+ */
+typedef enum
+{
+ GEOM_RESULT_POS = 0,
+ GEOM_RESULT_COL0 = 1,
+ GEOM_RESULT_COL1 = 2,
+ GEOM_RESULT_SCOL0 = 3,
+ GEOM_RESULT_SCOL1 = 4,
+ GEOM_RESULT_FOGC = 5,
+ GEOM_RESULT_TEX0 = 6,
+ GEOM_RESULT_TEX1 = 7,
+ GEOM_RESULT_TEX2 = 8,
+ GEOM_RESULT_TEX3 = 9,
+ GEOM_RESULT_TEX4 = 10,
+ GEOM_RESULT_TEX5 = 11,
+ GEOM_RESULT_TEX6 = 12,
+ GEOM_RESULT_TEX7 = 13,
+ GEOM_RESULT_PSIZ = 14,
+ GEOM_RESULT_CLPV = 15,
+ GEOM_RESULT_PRID = 16,
+ GEOM_RESULT_LAYR = 17,
+ GEOM_RESULT_VAR0 = 18, /**< shader varying, should really be 16 */
+ /* ### we need to -2 because var0 is 18 instead 16 like in the others */
+ GEOM_RESULT_MAX = (GEOM_RESULT_VAR0 + MAX_VARYING - 2)
+} gl_geom_result;
+
+
+/**
+ * Indexes for fragment program input attributes.
+ */
+typedef enum
+{
+ FRAG_ATTRIB_WPOS = 0,
+ FRAG_ATTRIB_COL0 = 1,
+ FRAG_ATTRIB_COL1 = 2,
+ FRAG_ATTRIB_FOGC = 3,
+ FRAG_ATTRIB_TEX0 = 4,
+ FRAG_ATTRIB_TEX1 = 5,
+ FRAG_ATTRIB_TEX2 = 6,
+ FRAG_ATTRIB_TEX3 = 7,
+ FRAG_ATTRIB_TEX4 = 8,
+ FRAG_ATTRIB_TEX5 = 9,
+ FRAG_ATTRIB_TEX6 = 10,
+ FRAG_ATTRIB_TEX7 = 11,
+ FRAG_ATTRIB_FACE = 12, /**< front/back face */
+ FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */
+ FRAG_ATTRIB_VAR0 = 14, /**< shader varying */
+ FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING)
+} gl_frag_attrib;
+
+/**
+ * Bitflags for fragment program input attributes.
+ */
+/*@{*/
+#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
+#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
+#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
+#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
+#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
+#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
+#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
+#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
+#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
+#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
+#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
+#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
+#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
+#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
+#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
+
+#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
+#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
+
+#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
+ FRAG_BIT_TEX1| \
+ FRAG_BIT_TEX2| \
+ FRAG_BIT_TEX3| \
+ FRAG_BIT_TEX4| \
+ FRAG_BIT_TEX5| \
+ FRAG_BIT_TEX6| \
+ FRAG_BIT_TEX7)
+/*@}*/
+
+
+/**
+ * Fragment program results
+ */
+typedef enum
+{
+ FRAG_RESULT_DEPTH = 0,
+ FRAG_RESULT_STENCIL = 1,
+ FRAG_RESULT_COLOR = 2,
+ FRAG_RESULT_DATA0 = 3,
+ FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)
+} gl_frag_result;
+
+
+/**
+ * Indexes for all renderbuffers
+ */
+typedef enum
+{
+ /* the four standard color buffers */
+ BUFFER_FRONT_LEFT,
+ BUFFER_BACK_LEFT,
+ BUFFER_FRONT_RIGHT,
+ BUFFER_BACK_RIGHT,
+ BUFFER_DEPTH,
+ BUFFER_STENCIL,
+ BUFFER_ACCUM,
+ /* optional aux buffer */
+ BUFFER_AUX0,
+ /* generic renderbuffers */
+ BUFFER_COLOR0,
+ BUFFER_COLOR1,
+ BUFFER_COLOR2,
+ BUFFER_COLOR3,
+ BUFFER_COLOR4,
+ BUFFER_COLOR5,
+ BUFFER_COLOR6,
+ BUFFER_COLOR7,
+ BUFFER_COUNT
+} gl_buffer_index;
+
+/**
+ * Bit flags for all renderbuffers
+ */
+#define BUFFER_BIT_FRONT_LEFT (1 << BUFFER_FRONT_LEFT)
+#define BUFFER_BIT_BACK_LEFT (1 << BUFFER_BACK_LEFT)
+#define BUFFER_BIT_FRONT_RIGHT (1 << BUFFER_FRONT_RIGHT)
+#define BUFFER_BIT_BACK_RIGHT (1 << BUFFER_BACK_RIGHT)
+#define BUFFER_BIT_AUX0 (1 << BUFFER_AUX0)
+#define BUFFER_BIT_AUX1 (1 << BUFFER_AUX1)
+#define BUFFER_BIT_AUX2 (1 << BUFFER_AUX2)
+#define BUFFER_BIT_AUX3 (1 << BUFFER_AUX3)
+#define BUFFER_BIT_DEPTH (1 << BUFFER_DEPTH)
+#define BUFFER_BIT_STENCIL (1 << BUFFER_STENCIL)
+#define BUFFER_BIT_ACCUM (1 << BUFFER_ACCUM)
+#define BUFFER_BIT_COLOR0 (1 << BUFFER_COLOR0)
+#define BUFFER_BIT_COLOR1 (1 << BUFFER_COLOR1)
+#define BUFFER_BIT_COLOR2 (1 << BUFFER_COLOR2)
+#define BUFFER_BIT_COLOR3 (1 << BUFFER_COLOR3)
+#define BUFFER_BIT_COLOR4 (1 << BUFFER_COLOR4)
+#define BUFFER_BIT_COLOR5 (1 << BUFFER_COLOR5)
+#define BUFFER_BIT_COLOR6 (1 << BUFFER_COLOR6)
+#define BUFFER_BIT_COLOR7 (1 << BUFFER_COLOR7)
+
+/**
+ * Mask of all the color buffer bits (but not accum).
+ */
+#define BUFFER_BITS_COLOR (BUFFER_BIT_FRONT_LEFT | \
+ BUFFER_BIT_BACK_LEFT | \
+ BUFFER_BIT_FRONT_RIGHT | \
+ BUFFER_BIT_BACK_RIGHT | \
+ BUFFER_BIT_AUX0 | \
+ BUFFER_BIT_COLOR0 | \
+ BUFFER_BIT_COLOR1 | \
+ BUFFER_BIT_COLOR2 | \
+ BUFFER_BIT_COLOR3 | \
+ BUFFER_BIT_COLOR4 | \
+ BUFFER_BIT_COLOR5 | \
+ BUFFER_BIT_COLOR6 | \
+ BUFFER_BIT_COLOR7)
+
+
+/**
+ * Framebuffer configuration (aka visual / pixelformat)
+ * Note: some of these fields should be boolean, but it appears that
+ * code in drivers/dri/common/util.c requires int-sized fields.
+ */
+struct gl_config
+{
+ GLboolean rgbMode;
+ GLboolean floatMode;
+ GLboolean colorIndexMode; /* XXX is this used anywhere? */
+ GLuint doubleBufferMode;
+ GLuint stereoMode;
+
+ GLboolean haveAccumBuffer;
+ GLboolean haveDepthBuffer;
+ GLboolean haveStencilBuffer;
+
+ GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */
+ GLuint redMask, greenMask, blueMask, alphaMask;
+ GLint rgbBits; /* total bits for rgb */
+ GLint indexBits; /* total bits for colorindex */
+
+ GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
+ GLint depthBits;
+ GLint stencilBits;
+
+ GLint numAuxBuffers;
+
+ GLint level;
+
+ /* EXT_visual_rating / GLX 1.2 */
+ GLint visualRating;
+
+ /* EXT_visual_info / GLX 1.2 */
+ GLint transparentPixel;
+ /* colors are floats scaled to ints */
+ GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;
+ GLint transparentIndex;
+
+ /* ARB_multisample / SGIS_multisample */
+ GLint sampleBuffers;
+ GLint samples;
+
+ /* SGIX_pbuffer / GLX 1.3 */
+ GLint maxPbufferWidth;
+ GLint maxPbufferHeight;
+ GLint maxPbufferPixels;
+ GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */
+ GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */
+
+ /* OML_swap_method */
+ GLint swapMethod;
+
+ /* EXT_texture_from_pixmap */
+ GLint bindToTextureRgb;
+ GLint bindToTextureRgba;
+ GLint bindToMipmapTexture;
+ GLint bindToTextureTargets;
+ GLint yInverted;
+
+ /* EXT_framebuffer_sRGB */
+ GLint sRGBCapable;
+};
+
+
+/**
+ * Data structure for color tables
+ */
+struct gl_color_table
+{
+ GLenum InternalFormat; /**< The user-specified format */
+ GLenum _BaseFormat; /**< GL_ALPHA, GL_RGBA, GL_RGB, etc */
+ GLuint Size; /**< number of entries in table */
+ GLfloat *TableF; /**< Color table, floating point values */
+ GLubyte *TableUB; /**< Color table, ubyte values */
+ GLubyte RedSize;
+ GLubyte GreenSize;
+ GLubyte BlueSize;
+ GLubyte AlphaSize;
+ GLubyte LuminanceSize;
+ GLubyte IntensitySize;
+};
+
+
+/**
+ * \name Bit flags used for updating material values.
+ */
+/*@{*/
+#define MAT_ATTRIB_FRONT_AMBIENT 0
+#define MAT_ATTRIB_BACK_AMBIENT 1
+#define MAT_ATTRIB_FRONT_DIFFUSE 2
+#define MAT_ATTRIB_BACK_DIFFUSE 3
+#define MAT_ATTRIB_FRONT_SPECULAR 4
+#define MAT_ATTRIB_BACK_SPECULAR 5
+#define MAT_ATTRIB_FRONT_EMISSION 6
+#define MAT_ATTRIB_BACK_EMISSION 7
+#define MAT_ATTRIB_FRONT_SHININESS 8
+#define MAT_ATTRIB_BACK_SHININESS 9
+#define MAT_ATTRIB_FRONT_INDEXES 10
+#define MAT_ATTRIB_BACK_INDEXES 11
+#define MAT_ATTRIB_MAX 12
+
+#define MAT_ATTRIB_AMBIENT(f) (MAT_ATTRIB_FRONT_AMBIENT+(f))
+#define MAT_ATTRIB_DIFFUSE(f) (MAT_ATTRIB_FRONT_DIFFUSE+(f))
+#define MAT_ATTRIB_SPECULAR(f) (MAT_ATTRIB_FRONT_SPECULAR+(f))
+#define MAT_ATTRIB_EMISSION(f) (MAT_ATTRIB_FRONT_EMISSION+(f))
+#define MAT_ATTRIB_SHININESS(f)(MAT_ATTRIB_FRONT_SHININESS+(f))
+#define MAT_ATTRIB_INDEXES(f) (MAT_ATTRIB_FRONT_INDEXES+(f))
+
+#define MAT_INDEX_AMBIENT 0
+#define MAT_INDEX_DIFFUSE 1
+#define MAT_INDEX_SPECULAR 2
+
+#define MAT_BIT_FRONT_AMBIENT (1<<MAT_ATTRIB_FRONT_AMBIENT)
+#define MAT_BIT_BACK_AMBIENT (1<<MAT_ATTRIB_BACK_AMBIENT)
+#define MAT_BIT_FRONT_DIFFUSE (1<<MAT_ATTRIB_FRONT_DIFFUSE)
+#define MAT_BIT_BACK_DIFFUSE (1<<MAT_ATTRIB_BACK_DIFFUSE)
+#define MAT_BIT_FRONT_SPECULAR (1<<MAT_ATTRIB_FRONT_SPECULAR)
+#define MAT_BIT_BACK_SPECULAR (1<<MAT_ATTRIB_BACK_SPECULAR)
+#define MAT_BIT_FRONT_EMISSION (1<<MAT_ATTRIB_FRONT_EMISSION)
+#define MAT_BIT_BACK_EMISSION (1<<MAT_ATTRIB_BACK_EMISSION)
+#define MAT_BIT_FRONT_SHININESS (1<<MAT_ATTRIB_FRONT_SHININESS)
+#define MAT_BIT_BACK_SHININESS (1<<MAT_ATTRIB_BACK_SHININESS)
+#define MAT_BIT_FRONT_INDEXES (1<<MAT_ATTRIB_FRONT_INDEXES)
+#define MAT_BIT_BACK_INDEXES (1<<MAT_ATTRIB_BACK_INDEXES)
+
+
+#define FRONT_MATERIAL_BITS (MAT_BIT_FRONT_EMISSION | \
+ MAT_BIT_FRONT_AMBIENT | \
+ MAT_BIT_FRONT_DIFFUSE | \
+ MAT_BIT_FRONT_SPECULAR | \
+ MAT_BIT_FRONT_SHININESS | \
+ MAT_BIT_FRONT_INDEXES)
+
+#define BACK_MATERIAL_BITS (MAT_BIT_BACK_EMISSION | \
+ MAT_BIT_BACK_AMBIENT | \
+ MAT_BIT_BACK_DIFFUSE | \
+ MAT_BIT_BACK_SPECULAR | \
+ MAT_BIT_BACK_SHININESS | \
+ MAT_BIT_BACK_INDEXES)
+
+#define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS)
+/*@}*/
+
+
+#define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */
+#define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */
+
+/**
+ * Material shininess lookup table.
+ */
+struct gl_shine_tab
+{
+ struct gl_shine_tab *next, *prev;
+ GLfloat tab[SHINE_TABLE_SIZE+1];
+ GLfloat shininess;
+ GLuint refcount;
+};
+
+
+/**
+ * Light source state.
+ */
+struct gl_light
+{
+ struct gl_light *next; /**< double linked list with sentinel */
+ struct gl_light *prev;
+
+ GLfloat Ambient[4]; /**< ambient color */
+ GLfloat Diffuse[4]; /**< diffuse color */
+ GLfloat Specular[4]; /**< specular color */
+ GLfloat EyePosition[4]; /**< position in eye coordinates */
+ GLfloat SpotDirection[4]; /**< spotlight direction in eye coordinates */
+ GLfloat SpotExponent;
+ GLfloat SpotCutoff; /**< in degrees */
+ GLfloat _CosCutoffNeg; /**< = cos(SpotCutoff) */
+ GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */
+ GLfloat ConstantAttenuation;
+ GLfloat LinearAttenuation;
+ GLfloat QuadraticAttenuation;
+ GLboolean Enabled; /**< On/off flag */
+
+ /**
+ * \name Derived fields
+ */
+ /*@{*/
+ GLbitfield _Flags; /**< State */
+
+ GLfloat _Position[4]; /**< position in eye/obj coordinates */
+ GLfloat _VP_inf_norm[3]; /**< Norm direction to infinite light */
+ GLfloat _h_inf_norm[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */
+ GLfloat _NormSpotDirection[4]; /**< normalized spotlight direction */
+ GLfloat _VP_inf_spot_attenuation;
+
+ GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */
+ GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */
+ GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */
+ GLfloat _MatSpecular[2][3]; /**< material spec * light specular */
+ GLfloat _dli; /**< CI diffuse light intensity */
+ GLfloat _sli; /**< CI specular light intensity */
+ /*@}*/
+};
+
+
+/**
+ * Light model state.
+ */
+struct gl_lightmodel
+{
+ GLfloat Ambient[4]; /**< ambient color */
+ GLboolean LocalViewer; /**< Local (or infinite) view point? */
+ GLboolean TwoSide; /**< Two (or one) sided lighting? */
+ GLenum ColorControl; /**< either GL_SINGLE_COLOR
+ * or GL_SEPARATE_SPECULAR_COLOR */
+};
+
+
+/**
+ * Material state.
+ */
+struct gl_material
+{
+ GLfloat Attrib[MAT_ATTRIB_MAX][4];
+};
+
+
+/**
+ * Accumulation buffer attribute group (GL_ACCUM_BUFFER_BIT)
+ */
+struct gl_accum_attrib
+{
+ GLfloat ClearColor[4]; /**< Accumulation buffer clear color */
+};
+
+
+/**
+ * Color buffer attribute group (GL_COLOR_BUFFER_BIT).
+ */
+struct gl_colorbuffer_attrib
+{
+ GLuint ClearIndex; /**< Index to use for glClear */
+ GLclampf ClearColor[4]; /**< Color to use for glClear */
+
+ GLuint IndexMask; /**< Color index write mask */
+ GLubyte ColorMask[MAX_DRAW_BUFFERS][4];/**< Each flag is 0xff or 0x0 */
+
+ GLenum DrawBuffer[MAX_DRAW_BUFFERS]; /**< Which buffer to draw into */
+
+ /**
+ * \name alpha testing
+ */
+ /*@{*/
+ GLboolean AlphaEnabled; /**< Alpha test enabled flag */
+ GLenum AlphaFunc; /**< Alpha test function */
+ GLclampf AlphaRef; /**< Alpha reference value */
+ /*@}*/
+
+ /**
+ * \name Blending
+ */
+ /*@{*/
+ GLbitfield BlendEnabled; /**< Per-buffer blend enable flags */
+ GLfloat BlendColor[4]; /**< Blending color */
+ struct
+ {
+ GLenum SrcRGB; /**< RGB blend source term */
+ GLenum DstRGB; /**< RGB blend dest term */
+ GLenum SrcA; /**< Alpha blend source term */
+ GLenum DstA; /**< Alpha blend dest term */
+ GLenum EquationRGB; /**< GL_ADD, GL_SUBTRACT, etc. */
+ GLenum EquationA; /**< GL_ADD, GL_SUBTRACT, etc. */
+ } Blend[MAX_DRAW_BUFFERS];
+ /** Are the blend func terms currently different for each buffer/target? */
+ GLboolean _BlendFuncPerBuffer;
+ /** Are the blend equations currently different for each buffer/target? */
+ GLboolean _BlendEquationPerBuffer;
+ /*@}*/
+
+ /**
+ * \name Logic op
+ */
+ /*@{*/
+ GLenum LogicOp; /**< Logic operator */
+ GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */
+ GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */
+ GLboolean _LogicOpEnabled; /**< RGBA logic op + EXT_blend_logic_op enabled flag */
+ /*@}*/
+
+ GLboolean DitherFlag; /**< Dither enable flag */
+
+ GLenum ClampFragmentColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
+ GLenum ClampReadColor; /**< GL_TRUE, GL_FALSE or GL_FIXED_ONLY_ARB */
+
+ GLboolean sRGBEnabled; /**< Framebuffer sRGB blending/updating requested */
+};
+
+
+/**
+ * Current attribute group (GL_CURRENT_BIT).
+ */
+struct gl_current_attrib
+{
+ /**
+ * \name Current vertex attributes.
+ * \note Values are valid only after FLUSH_VERTICES has been called.
+ * \note Index and Edgeflag current values are stored as floats in the
+ * SIX and SEVEN attribute slots.
+ */
+ GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Position, color, texcoords, etc */
+
+ /**
+ * \name Current raster position attributes (always valid).
+ * \note This set of attributes is very similar to the SWvertex struct.
+ */
+ /*@{*/
+ GLfloat RasterPos[4];
+ GLfloat RasterDistance;
+ GLfloat RasterColor[4];
+ GLfloat RasterSecondaryColor[4];
+ GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4];
+ GLboolean RasterPosValid;
+ /*@}*/
+};
+
+
+/**
+ * Depth buffer attribute group (GL_DEPTH_BUFFER_BIT).
+ */
+struct gl_depthbuffer_attrib
+{
+ GLenum Func; /**< Function for depth buffer compare */
+ GLclampd Clear; /**< Value to clear depth buffer to */
+ GLboolean Test; /**< Depth buffering enabled flag */
+ GLboolean Mask; /**< Depth buffer writable? */
+ GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */
+ GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */
+};
+
+
+/**
+ * Evaluator attribute group (GL_EVAL_BIT).
+ */
+struct gl_eval_attrib
+{
+ /**
+ * \name Enable bits
+ */
+ /*@{*/
+ GLboolean Map1Color4;
+ GLboolean Map1Index;
+ GLboolean Map1Normal;
+ GLboolean Map1TextureCoord1;
+ GLboolean Map1TextureCoord2;
+ GLboolean Map1TextureCoord3;
+ GLboolean Map1TextureCoord4;
+ GLboolean Map1Vertex3;
+ GLboolean Map1Vertex4;
+ GLboolean Map1Attrib[16]; /* GL_NV_vertex_program */
+ GLboolean Map2Color4;
+ GLboolean Map2Index;
+ GLboolean Map2Normal;
+ GLboolean Map2TextureCoord1;
+ GLboolean Map2TextureCoord2;
+ GLboolean Map2TextureCoord3;
+ GLboolean Map2TextureCoord4;
+ GLboolean Map2Vertex3;
+ GLboolean Map2Vertex4;
+ GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */
+ GLboolean AutoNormal;
+ /*@}*/
+
+ /**
+ * \name Map Grid endpoints and divisions and calculated du values
+ */
+ /*@{*/
+ GLint MapGrid1un;
+ GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du;
+ GLint MapGrid2un, MapGrid2vn;
+ GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du;
+ GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv;
+ /*@}*/
+};
+
+
+/**
+ * Fog attribute group (GL_FOG_BIT).
+ */
+struct gl_fog_attrib
+{
+ GLboolean Enabled; /**< Fog enabled flag */
+ GLfloat Color[4]; /**< Fog color */
+ GLfloat Density; /**< Density >= 0.0 */
+ GLfloat Start; /**< Start distance in eye coords */
+ GLfloat End; /**< End distance in eye coords */
+ GLfloat Index; /**< Fog index */
+ GLenum Mode; /**< Fog mode */
+ GLboolean ColorSumEnabled;
+ GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */
+ GLfloat _Scale; /**< (End == Start) ? 1.0 : 1.0 / (End - Start) */
+};
+
+
+/**
+ * \brief Layout qualifiers for gl_FragDepth.
+ *
+ * Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
+ * a layout qualifier.
+ *
+ * \see enum ir_depth_layout
+ */
+enum gl_frag_depth_layout {
+ FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */
+ FRAG_DEPTH_LAYOUT_ANY,
+ FRAG_DEPTH_LAYOUT_GREATER,
+ FRAG_DEPTH_LAYOUT_LESS,
+ FRAG_DEPTH_LAYOUT_UNCHANGED
+};
+
+
+/**
+ * Hint attribute group (GL_HINT_BIT).
+ *
+ * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.
+ */
+struct gl_hint_attrib
+{
+ GLenum PerspectiveCorrection;
+ GLenum PointSmooth;
+ GLenum LineSmooth;
+ GLenum PolygonSmooth;
+ GLenum Fog;
+ GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */
+ GLenum TextureCompression; /**< GL_ARB_texture_compression */
+ GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */
+ GLenum FragmentShaderDerivative; /**< GL_ARB_fragment_shader */
+};
+
+/**
+ * Light state flags.
+ */
+/*@{*/
+#define LIGHT_SPOT 0x1
+#define LIGHT_LOCAL_VIEWER 0x2
+#define LIGHT_POSITIONAL 0x4
+#define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER)
+/*@}*/
+
+
+/**
+ * Lighting attribute group (GL_LIGHT_BIT).
+ */
+struct gl_light_attrib
+{
+ struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */
+ struct gl_lightmodel Model; /**< Lighting model */
+
+ /**
+ * Must flush FLUSH_VERTICES before referencing:
+ */
+ /*@{*/
+ struct gl_material Material; /**< Includes front & back values */
+ /*@}*/
+
+ GLboolean Enabled; /**< Lighting enabled flag */
+ GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */
+ GLenum ProvokingVertex; /**< GL_EXT_provoking_vertex */
+ GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */
+ GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */
+ GLbitfield ColorMaterialBitmask; /**< bitmask formed from Face and Mode */
+ GLboolean ColorMaterialEnabled;
+ GLenum ClampVertexColor;
+
+ struct gl_light EnabledList; /**< List sentinel */
+
+ /**
+ * Derived state for optimizations:
+ */
+ /*@{*/
+ GLboolean _NeedEyeCoords;
+ GLboolean _NeedVertices; /**< Use fast shader? */
+ GLbitfield _Flags; /**< LIGHT_* flags, see above */
+ GLfloat _BaseColor[2][3];
+ /*@}*/
+};
+
+
+/**
+ * Line attribute group (GL_LINE_BIT).
+ */
+struct gl_line_attrib
+{
+ GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */
+ GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */
+ GLushort StipplePattern; /**< Stipple pattern */
+ GLint StippleFactor; /**< Stipple repeat factor */
+ GLfloat Width; /**< Line width */
+};
+
+
+/**
+ * Display list attribute group (GL_LIST_BIT).
+ */
+struct gl_list_attrib
+{
+ GLuint ListBase;
+};
+
+
+/**
+ * Multisample attribute group (GL_MULTISAMPLE_BIT).
+ */
+struct gl_multisample_attrib
+{
+ GLboolean Enabled;
+ GLboolean _Enabled; /**< true if Enabled and multisample buffer */
+ GLboolean SampleAlphaToCoverage;
+ GLboolean SampleAlphaToOne;
+ GLboolean SampleCoverage;
+ GLfloat SampleCoverageValue;
+ GLboolean SampleCoverageInvert;
+};
+
+
+/**
+ * A pixelmap (see glPixelMap)
+ */
+struct gl_pixelmap
+{
+ GLint Size;
+ GLfloat Map[MAX_PIXEL_MAP_TABLE];
+ GLubyte Map8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */
+};
+
+
+/**
+ * Collection of all pixelmaps
+ */
+struct gl_pixelmaps
+{
+ struct gl_pixelmap RtoR; /**< i.e. GL_PIXEL_MAP_R_TO_R */
+ struct gl_pixelmap GtoG;
+ struct gl_pixelmap BtoB;
+ struct gl_pixelmap AtoA;
+ struct gl_pixelmap ItoR;
+ struct gl_pixelmap ItoG;
+ struct gl_pixelmap ItoB;
+ struct gl_pixelmap ItoA;
+ struct gl_pixelmap ItoI;
+ struct gl_pixelmap StoS;
+};
+
+
+/**
+ * Pixel attribute group (GL_PIXEL_MODE_BIT).
+ */
+struct gl_pixel_attrib
+{
+ GLenum ReadBuffer; /**< source buffer for glRead/CopyPixels() */
+
+ /*--- Begin Pixel Transfer State ---*/
+ /* Fields are in the order in which they're applied... */
+
+ /** Scale & Bias (index shift, offset) */
+ /*@{*/
+ GLfloat RedBias, RedScale;
+ GLfloat GreenBias, GreenScale;
+ GLfloat BlueBias, BlueScale;
+ GLfloat AlphaBias, AlphaScale;
+ GLfloat DepthBias, DepthScale;
+ GLint IndexShift, IndexOffset;
+ /*@}*/
+
+ /* Pixel Maps */
+ /* Note: actual pixel maps are not part of this attrib group */
+ GLboolean MapColorFlag;
+ GLboolean MapStencilFlag;
+
+ /*--- End Pixel Transfer State ---*/
+
+ /** glPixelZoom */
+ GLfloat ZoomX, ZoomY;
+};
+
+
+/**
+ * Point attribute group (GL_POINT_BIT).
+ */
+struct gl_point_attrib
+{
+ GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */
+ GLfloat Size; /**< User-specified point size */
+ GLfloat Params[3]; /**< GL_EXT_point_parameters */
+ GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */
+ GLfloat Threshold; /**< GL_EXT_point_parameters */
+ GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */
+ GLboolean PointSprite; /**< GL_NV/ARB_point_sprite */
+ GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /**< GL_ARB_point_sprite*/
+ GLenum SpriteRMode; /**< GL_NV_point_sprite (only!) */
+ GLenum SpriteOrigin; /**< GL_ARB_point_sprite */
+};
+
+
+/**
+ * Polygon attribute group (GL_POLYGON_BIT).
+ */
+struct gl_polygon_attrib
+{
+ GLenum FrontFace; /**< Either GL_CW or GL_CCW */
+ GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
+ GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */
+ GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */
+ GLboolean CullFlag; /**< Culling on/off flag */
+ GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */
+ GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */
+ GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */
+ GLfloat OffsetFactor; /**< Polygon offset factor, from user */
+ GLfloat OffsetUnits; /**< Polygon offset units, from user */
+ GLboolean OffsetPoint; /**< Offset in GL_POINT mode */
+ GLboolean OffsetLine; /**< Offset in GL_LINE mode */
+ GLboolean OffsetFill; /**< Offset in GL_FILL mode */
+};
+
+
+/**
+ * Scissor attributes (GL_SCISSOR_BIT).
+ */
+struct gl_scissor_attrib
+{
+ GLboolean Enabled; /**< Scissor test enabled? */
+ GLint X, Y; /**< Lower left corner of box */
+ GLsizei Width, Height; /**< Size of box */
+};
+
+
+/**
+ * Stencil attribute group (GL_STENCIL_BUFFER_BIT).
+ *
+ * Three sets of stencil data are tracked so that OpenGL 2.0,
+ * GL_EXT_stencil_two_side, and GL_ATI_separate_stencil can all be supported
+ * simultaneously. In each of the stencil state arrays, element 0 corresponds
+ * to GL_FRONT. Element 1 corresponds to the OpenGL 2.0 /
+ * GL_ATI_separate_stencil GL_BACK state. Element 2 corresponds to the
+ * GL_EXT_stencil_two_side GL_BACK state.
+ *
+ * The derived value \c _BackFace is either 1 or 2 depending on whether or
+ * not GL_STENCIL_TEST_TWO_SIDE_EXT is enabled.
+ *
+ * The derived value \c _TestTwoSide is set when the front-face and back-face
+ * stencil state are different.
+ */
+struct gl_stencil_attrib
+{
+ GLboolean Enabled; /**< Enabled flag */
+ GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */
+ GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 2) */
+ GLboolean _Enabled; /**< Enabled and stencil buffer present */
+ GLboolean _TestTwoSide;
+ GLubyte _BackFace; /**< Current back stencil state (1 or 2) */
+ GLenum Function[3]; /**< Stencil function */
+ GLenum FailFunc[3]; /**< Fail function */
+ GLenum ZPassFunc[3]; /**< Depth buffer pass function */
+ GLenum ZFailFunc[3]; /**< Depth buffer fail function */
+ GLint Ref[3]; /**< Reference value */
+ GLuint ValueMask[3]; /**< Value mask */
+ GLuint WriteMask[3]; /**< Write mask */
+ GLuint Clear; /**< Clear value */
+};
+
+
+/**
+ * An index for each type of texture object. These correspond to the GL
+ * texture target enums, such as GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP, etc.
+ * Note: the order is from highest priority to lowest priority.
+ */
+typedef enum
+{
+ TEXTURE_2D_ARRAY_INDEX,
+ TEXTURE_1D_ARRAY_INDEX,
+ TEXTURE_CUBE_INDEX,
+ TEXTURE_3D_INDEX,
+ TEXTURE_RECT_INDEX,
+ TEXTURE_2D_INDEX,
+ TEXTURE_1D_INDEX,
+ NUM_TEXTURE_TARGETS
+} gl_texture_index;
+
+
+/**
+ * Bit flags for each type of texture object
+ * Used for Texture.Unit[]._ReallyEnabled flags.
+ */
+/*@{*/
+#define TEXTURE_2D_ARRAY_BIT (1 << TEXTURE_2D_ARRAY_INDEX)
+#define TEXTURE_1D_ARRAY_BIT (1 << TEXTURE_1D_ARRAY_INDEX)
+#define TEXTURE_CUBE_BIT (1 << TEXTURE_CUBE_INDEX)
+#define TEXTURE_3D_BIT (1 << TEXTURE_3D_INDEX)
+#define TEXTURE_RECT_BIT (1 << TEXTURE_RECT_INDEX)
+#define TEXTURE_2D_BIT (1 << TEXTURE_2D_INDEX)
+#define TEXTURE_1D_BIT (1 << TEXTURE_1D_INDEX)
+/*@}*/
+
+
+/**
+ * TexGenEnabled flags.
+ */
+/*@{*/
+#define S_BIT 1
+#define T_BIT 2
+#define R_BIT 4
+#define Q_BIT 8
+#define STR_BITS (S_BIT | T_BIT | R_BIT)
+/*@}*/
+
+
+/**
+ * Bit flag versions of the corresponding GL_ constants.
+ */
+/*@{*/
+#define TEXGEN_SPHERE_MAP 0x1
+#define TEXGEN_OBJ_LINEAR 0x2
+#define TEXGEN_EYE_LINEAR 0x4
+#define TEXGEN_REFLECTION_MAP_NV 0x8
+#define TEXGEN_NORMAL_MAP_NV 0x10
+
+#define TEXGEN_NEED_NORMALS (TEXGEN_SPHERE_MAP | \
+ TEXGEN_REFLECTION_MAP_NV | \
+ TEXGEN_NORMAL_MAP_NV)
+#define TEXGEN_NEED_EYE_COORD (TEXGEN_SPHERE_MAP | \
+ TEXGEN_REFLECTION_MAP_NV | \
+ TEXGEN_NORMAL_MAP_NV | \
+ TEXGEN_EYE_LINEAR)
+/*@}*/
+
+
+
+/** Tex-gen enabled for texture unit? */
+#define ENABLE_TEXGEN(unit) (1 << (unit))
+
+/** Non-identity texture matrix for texture unit? */
+#define ENABLE_TEXMAT(unit) (1 << (unit))
+
+
+/**
+ * Texel fetch function prototype. We use texel fetch functions to
+ * extract RGBA, color indexes and depth components out of 1D, 2D and 3D
+ * texture images. These functions help to isolate us from the gritty
+ * details of all the various texture image encodings.
+ *
+ * \param texImage texture image.
+ * \param col texel column.
+ * \param row texel row.
+ * \param img texel image level/layer.
+ * \param texelOut output texel (up to 4 GLchans)
+ */
+typedef void (*FetchTexelFuncC)( const struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ GLchan *texelOut );
+
+/**
+ * As above, but returns floats.
+ * Used for depth component images and for upcoming signed/float
+ * texture images.
+ */
+typedef void (*FetchTexelFuncF)( const struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ GLfloat *texelOut );
+
+
+typedef void (*StoreTexelFunc)(struct gl_texture_image *texImage,
+ GLint col, GLint row, GLint img,
+ const void *texel);
+
+
+/**
+ * Texture image state. Describes the dimensions of a texture image,
+ * the texel format and pointers to Texel Fetch functions.
+ */
+struct gl_texture_image
+{
+ GLint InternalFormat; /**< Internal format as given by the user */
+ GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_ALPHA,
+ * GL_LUMINANCE, GL_LUMINANCE_ALPHA,
+ * GL_INTENSITY, GL_COLOR_INDEX,
+ * GL_DEPTH_COMPONENT or GL_DEPTH_STENCIL_EXT
+ * only. Used for choosing TexEnv arithmetic.
+ */
+ gl_format TexFormat; /**< The actual texture memory format */
+
+ GLuint Border; /**< 0 or 1 */
+ GLuint Width; /**< = 2^WidthLog2 + 2*Border */
+ GLuint Height; /**< = 2^HeightLog2 + 2*Border */
+ GLuint Depth; /**< = 2^DepthLog2 + 2*Border */
+ GLuint Width2; /**< = Width - 2*Border */
+ GLuint Height2; /**< = Height - 2*Border */
+ GLuint Depth2; /**< = Depth - 2*Border */
+ GLuint WidthLog2; /**< = log2(Width2) */
+ GLuint HeightLog2; /**< = log2(Height2) */
+ GLuint DepthLog2; /**< = log2(Depth2) */
+ GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */
+ GLfloat WidthScale; /**< used for mipmap LOD computation */
+ GLfloat HeightScale; /**< used for mipmap LOD computation */
+ GLfloat DepthScale; /**< used for mipmap LOD computation */
+ GLboolean IsClientData; /**< Data owned by client? */
+ GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */
+
+ struct gl_texture_object *TexObject; /**< Pointer back to parent object */
+
+ FetchTexelFuncC FetchTexelc; /**< GLchan texel fetch function pointer */
+ FetchTexelFuncF FetchTexelf; /**< Float texel fetch function pointer */
+
+ GLuint RowStride; /**< Padded width in units of texels */
+ GLuint *ImageOffsets; /**< if 3D texture: array [Depth] of offsets to
+ each 2D slice in 'Data', in texels */
+ GLvoid *Data; /**< Image data, accessed via FetchTexel() */
+
+ /**
+ * \name For device driver:
+ */
+ /*@{*/
+ void *DriverData; /**< Arbitrary device driver data */
+ /*@}*/
+};
+
+
+/**
+ * Indexes for cube map faces.
+ */
+typedef enum
+{
+ FACE_POS_X = 0,
+ FACE_NEG_X = 1,
+ FACE_POS_Y = 2,
+ FACE_NEG_Y = 3,
+ FACE_POS_Z = 4,
+ FACE_NEG_Z = 5,
+ MAX_FACES = 6
+} gl_face_index;
+
+
+/**
+ * Texture object state. Contains the array of mipmap images, border color,
+ * wrap modes, filter modes, shadow/texcompare state, and the per-texture
+ * color palette.
+ */
+struct gl_texture_object
+{
+ _glthread_Mutex Mutex; /**< for thread safety */
+ GLint RefCount; /**< reference count */
+ GLuint Name; /**< the user-visible texture object ID */
+ GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */
+ GLfloat Priority; /**< in [0,1] */
+ union {
+ GLfloat f[4];
+ GLuint ui[4];
+ GLint i[4];
+ } BorderColor; /**< Interpreted according to texture format */
+ GLenum WrapS; /**< S-axis texture image wrap mode */
+ GLenum WrapT; /**< T-axis texture image wrap mode */
+ GLenum WrapR; /**< R-axis texture image wrap mode */
+ GLenum MinFilter; /**< minification filter */
+ GLenum MagFilter; /**< magnification filter */
+ GLfloat MinLod; /**< min lambda, OpenGL 1.2 */
+ GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */
+ GLfloat LodBias; /**< OpenGL 1.4 */
+ GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */
+ GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */
+ GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */
+ GLenum CompareMode; /**< GL_ARB_shadow */
+ GLenum CompareFunc; /**< GL_ARB_shadow */
+ GLfloat CompareFailValue; /**< GL_ARB_shadow_ambient */
+ GLenum DepthMode; /**< GL_ARB_depth_texture */
+ GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */
+ GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */
+ GLint CropRect[4]; /**< GL_OES_draw_texture */
+ GLenum Swizzle[4]; /**< GL_EXT_texture_swizzle */
+ GLuint _Swizzle; /**< same as Swizzle, but SWIZZLE_* format */
+ GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */
+ GLboolean _Complete; /**< Is texture object complete? */
+ GLboolean _RenderToTexture; /**< Any rendering to this texture? */
+ GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
+ GLenum sRGBDecode; /**< GL_DECODE_EXT or GL_SKIP_DECODE_EXT */
+
+ /** Actual texture images, indexed by [cube face] and [mipmap level] */
+ struct gl_texture_image *Image[MAX_FACES][MAX_TEXTURE_LEVELS];
+
+ /** GL_EXT_paletted_texture */
+ struct gl_color_table Palette;
+
+ /**
+ * \name For device driver.
+ * Note: instead of attaching driver data to this pointer, it's preferable
+ * to instead use this struct as a base class for your own texture object
+ * class. Driver->NewTextureObject() can be used to implement the
+ * allocation.
+ */
+ void *DriverData; /**< Arbitrary device driver data */
+};
+
+
+/** Up to four combiner sources are possible with GL_NV_texture_env_combine4 */
+#define MAX_COMBINER_TERMS 4
+
+
+/**
+ * Texture combine environment state.
+ */
+struct gl_tex_env_combine_state
+{
+ GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
+ GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
+ /** Source terms: GL_PRIMARY_COLOR, GL_TEXTURE, etc */
+ GLenum SourceRGB[MAX_COMBINER_TERMS];
+ GLenum SourceA[MAX_COMBINER_TERMS];
+ /** Source operands: GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, etc */
+ GLenum OperandRGB[MAX_COMBINER_TERMS];
+ GLenum OperandA[MAX_COMBINER_TERMS];
+ GLuint ScaleShiftRGB; /**< 0, 1 or 2 */
+ GLuint ScaleShiftA; /**< 0, 1 or 2 */
+ GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */
+ GLuint _NumArgsA; /**< Number of inputs used for the A combiner */
+};
+
+
+/**
+ * Texture coord generation state.
+ */
+struct gl_texgen
+{
+ GLenum Mode; /**< GL_EYE_LINEAR, GL_SPHERE_MAP, etc */
+ GLbitfield _ModeBit; /**< TEXGEN_x bit corresponding to Mode */
+ GLfloat ObjectPlane[4];
+ GLfloat EyePlane[4];
+};
+
+
+/**
+ * Texture unit state. Contains enable flags, texture environment/function/
+ * combiners, texgen state, pointers to current texture objects and
+ * post-filter color tables.
+ */
+struct gl_texture_unit
+{
+ GLbitfield Enabled; /**< bitmask of TEXTURE_*_BIT flags */
+ GLbitfield _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */
+
+ GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */
+ GLfloat EnvColor[4];
+
+ struct gl_texgen GenS;
+ struct gl_texgen GenT;
+ struct gl_texgen GenR;
+ struct gl_texgen GenQ;
+ GLbitfield TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */
+ GLbitfield _GenFlags; /**< Bitwise-OR of Gen[STRQ]._ModeBit */
+
+ GLfloat LodBias; /**< for biasing mipmap levels */
+ GLenum BumpTarget;
+ GLfloat RotMatrix[4]; /* 2x2 matrix */
+
+ /**
+ * \name GL_EXT_texture_env_combine
+ */
+ struct gl_tex_env_combine_state Combine;
+
+ /**
+ * Derived state based on \c EnvMode and the \c BaseFormat of the
+ * currently enabled texture.
+ */
+ struct gl_tex_env_combine_state _EnvMode;
+
+ /**
+ * Currently enabled combiner state. This will point to either
+ * \c Combine or \c _EnvMode.
+ */
+ struct gl_tex_env_combine_state *_CurrentCombine;
+
+ /** Current texture object pointers */
+ struct gl_texture_object *CurrentTex[NUM_TEXTURE_TARGETS];
+
+ /** Points to highest priority, complete and enabled texture object */
+ struct gl_texture_object *_Current;
+};
+
+
+/**
+ * Texture attribute group (GL_TEXTURE_BIT).
+ */
+struct gl_texture_attrib
+{
+ GLuint CurrentUnit; /**< GL_ACTIVE_TEXTURE */
+ struct gl_texture_unit Unit[MAX_COMBINED_TEXTURE_IMAGE_UNITS];
+
+ struct gl_texture_object *ProxyTex[NUM_TEXTURE_TARGETS];
+
+ /** GL_ARB_seamless_cubemap */
+ GLboolean CubeMapSeamless;
+
+ /** GL_EXT_shared_texture_palette */
+ GLboolean SharedPalette;
+ struct gl_color_table Palette;
+
+ /** Texture units/samplers used by vertex or fragment texturing */
+ GLbitfield _EnabledUnits;
+
+ /** Texture coord units/sets used for fragment texturing */
+ GLbitfield _EnabledCoordUnits;
+
+ /** Texture coord units that have texgen enabled */
+ GLbitfield _TexGenEnabled;
+
+ /** Texture coord units that have non-identity matrices */
+ GLbitfield _TexMatEnabled;
+
+ /** Bitwise-OR of all Texture.Unit[i]._GenFlags */
+ GLbitfield _GenFlags;
+};
+
+
+/**
+ * Transformation attribute group (GL_TRANSFORM_BIT).
+ */
+struct gl_transform_attrib
+{
+ GLenum MatrixMode; /**< Matrix mode */
+ GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */
+ GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */
+ GLbitfield ClipPlanesEnabled; /**< on/off bitmask */
+ GLboolean Normalize; /**< Normalize all normals? */
+ GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */
+ GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */
+ GLboolean DepthClamp; /**< GL_ARB_depth_clamp */
+
+ GLfloat CullEyePos[4];
+ GLfloat CullObjPos[4];
+};
+
+
+/**
+ * Viewport attribute group (GL_VIEWPORT_BIT).
+ */
+struct gl_viewport_attrib
+{
+ GLint X, Y; /**< position */
+ GLsizei Width, Height; /**< size */
+ GLfloat Near, Far; /**< Depth buffer range */
+ GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */
+};
+
+
+/**
+ * GL_ARB_vertex/pixel_buffer_object buffer object
+ */
+struct gl_buffer_object
+{
+ _glthread_Mutex Mutex;
+ GLint RefCount;
+ GLuint Name;
+ GLenum Usage; /**< GL_STREAM_DRAW_ARB, GL_STREAM_READ_ARB, etc. */
+ GLsizeiptrARB Size; /**< Size of buffer storage in bytes */
+ GLubyte *Data; /**< Location of storage either in RAM or VRAM. */
+ /** Fields describing a mapped buffer */
+ /*@{*/
+ GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */
+ GLvoid *Pointer; /**< User-space address of mapping */
+ GLintptr Offset; /**< Mapped offset */
+ GLsizeiptr Length; /**< Mapped length */
+ /*@}*/
+ GLboolean Written; /**< Ever written to? (for debugging) */
+ GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
+};
+
+
+/**
+ * Client pixel packing/unpacking attributes
+ */
+struct gl_pixelstore_attrib
+{
+ GLint Alignment;
+ GLint RowLength;
+ GLint SkipPixels;
+ GLint SkipRows;
+ GLint ImageHeight;
+ GLint SkipImages;
+ GLboolean SwapBytes;
+ GLboolean LsbFirst;
+ GLboolean ClientStorage; /**< GL_APPLE_client_storage */
+ GLboolean Invert; /**< GL_MESA_pack_invert */
+ struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */
+};
+
+
+/**
+ * Client vertex array attributes
+ */
+struct gl_client_array
+{
+ GLint Size; /**< components per element (1,2,3,4) */
+ GLenum Type; /**< datatype: GL_FLOAT, GL_INT, etc */
+ GLenum Format; /**< default: GL_RGBA, but may be GL_BGRA */
+ GLsizei Stride; /**< user-specified stride */
+ GLsizei StrideB; /**< actual stride in bytes */
+ const GLubyte *Ptr; /**< Points to array data */
+ GLboolean Enabled; /**< Enabled flag is a boolean */
+ GLboolean Normalized; /**< GL_ARB_vertex_program */
+ GLboolean Integer; /**< Integer-valued? */
+ GLuint InstanceDivisor; /**< GL_ARB_instanced_arrays */
+ GLuint _ElementSize; /**< size of each element in bytes */
+
+ struct gl_buffer_object *BufferObj;/**< GL_ARB_vertex_buffer_object */
+ GLuint _MaxElement; /**< max element index into array buffer + 1 */
+};
+
+
+/**
+ * Collection of vertex arrays. Defined by the GL_APPLE_vertex_array_object
+ * extension, but a nice encapsulation in any case.
+ */
+struct gl_array_object
+{
+ /** Name of the array object as received from glGenVertexArrayAPPLE. */
+ GLuint Name;
+
+ GLint RefCount;
+ _glthread_Mutex Mutex;
+ GLboolean VBOonly; /**< require all arrays to live in VBOs? */
+
+ /** Conventional vertex arrays */
+ /*@{*/
+ struct gl_client_array Vertex;
+ struct gl_client_array Weight;
+ struct gl_client_array Normal;
+ struct gl_client_array Color;
+ struct gl_client_array SecondaryColor;
+ struct gl_client_array FogCoord;
+ struct gl_client_array Index;
+ struct gl_client_array EdgeFlag;
+ struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS];
+ struct gl_client_array PointSize;
+ /*@}*/
+
+ /**
+ * Generic arrays for vertex programs/shaders.
+ * For NV vertex programs, these attributes alias and take priority
+ * over the conventional attribs above. For ARB vertex programs and
+ * GLSL vertex shaders, these attributes are separate.
+ */
+ struct gl_client_array VertexAttrib[MAX_VERTEX_GENERIC_ATTRIBS];
+
+ /** Mask of _NEW_ARRAY_* values indicating which arrays are enabled */
+ GLbitfield _Enabled;
+
+ /**
+ * Min of all enabled arrays' _MaxElement. When arrays reside inside VBOs
+ * we can determine the max legal (in bounds) glDrawElements array index.
+ */
+ GLuint _MaxElement;
+};
+
+
+/**
+ * Vertex array state
+ */
+struct gl_array_attrib
+{
+ /** Currently bound array object. See _mesa_BindVertexArrayAPPLE() */
+ struct gl_array_object *ArrayObj;
+
+ /** The default vertex array object */
+ struct gl_array_object *DefaultArrayObj;
+
+ /** Array objects (GL_ARB/APPLE_vertex_array_object) */
+ struct _mesa_HashTable *Objects;
+
+ GLint ActiveTexture; /**< Client Active Texture */
+ GLuint LockFirst; /**< GL_EXT_compiled_vertex_array */
+ GLuint LockCount; /**< GL_EXT_compiled_vertex_array */
+
+ /** GL 3.1 (slightly different from GL_NV_primitive_restart) */
+ GLboolean PrimitiveRestart;
+ GLuint RestartIndex;
+
+ GLbitfield NewState; /**< mask of _NEW_ARRAY_* values */
+ GLboolean RebindArrays; /**< whether the VBO module should rebind arrays */
+
+ /* GL_ARB_vertex_buffer_object */
+ struct gl_buffer_object *ArrayBufferObj;
+ struct gl_buffer_object *ElementArrayBufferObj;
+};
+
+
+/**
+ * Feedback buffer state
+ */
+struct gl_feedback
+{
+ GLenum Type;
+ GLbitfield _Mask; /**< FB_* bits */
+ GLfloat *Buffer;
+ GLuint BufferSize;
+ GLuint Count;
+};
+
+
+/**
+ * Selection buffer state
+ */
+struct gl_selection
+{
+ GLuint *Buffer; /**< selection buffer */
+ GLuint BufferSize; /**< size of the selection buffer */
+ GLuint BufferCount; /**< number of values in the selection buffer */
+ GLuint Hits; /**< number of records in the selection buffer */
+ GLuint NameStackDepth; /**< name stack depth */
+ GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */
+ GLboolean HitFlag; /**< hit flag */
+ GLfloat HitMinZ; /**< minimum hit depth */
+ GLfloat HitMaxZ; /**< maximum hit depth */
+};
+
+
+/**
+ * 1-D Evaluator control points
+ */
+struct gl_1d_map
+{
+ GLuint Order; /**< Number of control points */
+ GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */
+ GLfloat *Points; /**< Points to contiguous control points */
+};
+
+
+/**
+ * 2-D Evaluator control points
+ */
+struct gl_2d_map
+{
+ GLuint Uorder; /**< Number of control points in U dimension */
+ GLuint Vorder; /**< Number of control points in V dimension */
+ GLfloat u1, u2, du;
+ GLfloat v1, v2, dv;
+ GLfloat *Points; /**< Points to contiguous control points */
+};
+
+
+/**
+ * All evaluator control point state
+ */
+struct gl_evaluators
+{
+ /**
+ * \name 1-D maps
+ */
+ /*@{*/
+ struct gl_1d_map Map1Vertex3;
+ struct gl_1d_map Map1Vertex4;
+ struct gl_1d_map Map1Index;
+ struct gl_1d_map Map1Color4;
+ struct gl_1d_map Map1Normal;
+ struct gl_1d_map Map1Texture1;
+ struct gl_1d_map Map1Texture2;
+ struct gl_1d_map Map1Texture3;
+ struct gl_1d_map Map1Texture4;
+ struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */
+ /*@}*/
+
+ /**
+ * \name 2-D maps
+ */
+ /*@{*/
+ struct gl_2d_map Map2Vertex3;
+ struct gl_2d_map Map2Vertex4;
+ struct gl_2d_map Map2Index;
+ struct gl_2d_map Map2Color4;
+ struct gl_2d_map Map2Normal;
+ struct gl_2d_map Map2Texture1;
+ struct gl_2d_map Map2Texture2;
+ struct gl_2d_map Map2Texture3;
+ struct gl_2d_map Map2Texture4;
+ struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */
+ /*@}*/
+};
+
+
+/**
+ * Names of the various vertex/fragment program register files, etc.
+ *
+ * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
+ * All values should fit in a 4-bit field.
+ *
+ * NOTE: PROGRAM_ENV_PARAM, PROGRAM_STATE_VAR, PROGRAM_NAMED_PARAM,
+ * PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be considered to
+ * be "uniform" variables since they can only be set outside glBegin/End.
+ * They're also all stored in the same Parameters array.
+ */
+typedef enum
+{
+ PROGRAM_TEMPORARY, /**< machine->Temporary[] */
+ PROGRAM_INPUT, /**< machine->Inputs[] */
+ PROGRAM_OUTPUT, /**< machine->Outputs[] */
+ PROGRAM_VARYING, /**< machine->Inputs[]/Outputs[] */
+ PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */
+ PROGRAM_ENV_PARAM, /**< gl_program->Parameters[] */
+ PROGRAM_STATE_VAR, /**< gl_program->Parameters[] */
+ PROGRAM_NAMED_PARAM, /**< gl_program->Parameters[] */
+ PROGRAM_CONSTANT, /**< gl_program->Parameters[] */
+ PROGRAM_UNIFORM, /**< gl_program->Parameters[] */
+ PROGRAM_WRITE_ONLY, /**< A dummy, write-only register */
+ PROGRAM_ADDRESS, /**< machine->AddressReg */
+ PROGRAM_SAMPLER, /**< for shader samplers, compile-time only */
+ PROGRAM_SYSTEM_VALUE,/**< InstanceId, PrimitiveID, etc. */
+ PROGRAM_UNDEFINED, /**< Invalid/TBD value */
+ PROGRAM_FILE_MAX
+} gl_register_file;
+
+
+/**
+ * If the register file is PROGRAM_SYSTEM_VALUE, the register index will be
+ * one of these values.
+ */
+typedef enum
+{
+ SYSTEM_VALUE_FRONT_FACE, /**< Fragment shader only (not done yet) */
+ SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */
+ SYSTEM_VALUE_MAX /**< Number of values */
+} gl_system_value;
+
+
+/** Vertex and fragment instructions */
+struct prog_instruction;
+struct gl_program_parameter_list;
+struct gl_uniform_list;
+
+
+/**
+ * Base class for any kind of program object
+ */
+struct gl_program
+{
+ GLuint Id;
+ GLubyte *String; /**< Null-terminated program text */
+ GLint RefCount;
+ GLenum Target; /**< GL_VERTEX/FRAGMENT_PROGRAM_ARB, GL_FRAGMENT_PROGRAM_NV */
+ GLenum Format; /**< String encoding format */
+ GLboolean Resident;
+
+ struct prog_instruction *Instructions;
+
+ GLbitfield InputsRead; /**< Bitmask of which input regs are read */
+ GLbitfield64 OutputsWritten; /**< Bitmask of which output regs are written */
+ GLbitfield SystemValuesRead; /**< Bitmask of SYSTEM_VALUE_x inputs used */
+ GLbitfield InputFlags[MAX_PROGRAM_INPUTS]; /**< PROG_PARAM_BIT_x flags */
+ GLbitfield OutputFlags[MAX_PROGRAM_OUTPUTS]; /**< PROG_PARAM_BIT_x flags */
+ GLbitfield TexturesUsed[MAX_TEXTURE_UNITS]; /**< TEXTURE_x_BIT bitmask */
+ GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */
+ GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */
+
+
+ /** Named parameters, constants, etc. from program text */
+ struct gl_program_parameter_list *Parameters;
+ /** Numbered local parameters */
+ GLfloat LocalParams[MAX_PROGRAM_LOCAL_PARAMS][4];
+
+ /** Vertex/fragment shader varying vars */
+ struct gl_program_parameter_list *Varying;
+ /** Vertex program user-defined attributes */
+ struct gl_program_parameter_list *Attributes;
+
+ /** Map from sampler unit to texture unit (set by glUniform1i()) */
+ GLubyte SamplerUnits[MAX_SAMPLERS];
+ /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */
+ gl_texture_index SamplerTargets[MAX_SAMPLERS];
+
+ /** Bitmask of which register files are read/written with indirect
+ * addressing. Mask of (1 << PROGRAM_x) bits.
+ */
+ GLbitfield IndirectRegisterFiles;
+
+ /** Logical counts */
+ /*@{*/
+ GLuint NumInstructions;
+ GLuint NumTemporaries;
+ GLuint NumParameters;
+ GLuint NumAttributes;
+ GLuint NumAddressRegs;
+ GLuint NumAluInstructions;
+ GLuint NumTexInstructions;
+ GLuint NumTexIndirections;
+ /*@}*/
+ /** Native, actual h/w counts */
+ /*@{*/
+ GLuint NumNativeInstructions;
+ GLuint NumNativeTemporaries;
+ GLuint NumNativeParameters;
+ GLuint NumNativeAttributes;
+ GLuint NumNativeAddressRegs;
+ GLuint NumNativeAluInstructions;
+ GLuint NumNativeTexInstructions;
+ GLuint NumNativeTexIndirections;
+ /*@}*/
+};
+
+
+/** Vertex program object */
+struct gl_vertex_program
+{
+ struct gl_program Base; /**< base class */
+ GLboolean IsNVProgram; /**< is this a GL_NV_vertex_program program? */
+ GLboolean IsPositionInvariant;
+};
+
+
+/** Geometry program object */
+struct gl_geometry_program
+{
+ struct gl_program Base; /**< base class */
+
+ GLint VerticesOut;
+ GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
+ GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
+ GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
+};
+
+
+/** Fragment program object */
+struct gl_fragment_program
+{
+ struct gl_program Base; /**< base class */
+ GLenum FogOption;
+ GLboolean UsesKill; /**< shader uses KIL instruction */
+ GLboolean OriginUpperLeft;
+ GLboolean PixelCenterInteger;
+ enum gl_frag_depth_layout FragDepthLayout;
+};
+
+
+/**
+ * State common to vertex and fragment programs.
+ */
+struct gl_program_state
+{
+ GLint ErrorPos; /* GL_PROGRAM_ERROR_POSITION_ARB/NV */
+ const char *ErrorString; /* GL_PROGRAM_ERROR_STRING_ARB/NV */
+};
+
+
+/**
+ * Context state for vertex programs.
+ */
+struct gl_vertex_program_state
+{
+ GLboolean Enabled; /**< User-set GL_VERTEX_PROGRAM_ARB/NV flag */
+ GLboolean _Enabled; /**< Enabled and _valid_ user program? */
+ GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_ARB/NV */
+ GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_ARB/NV */
+ struct gl_vertex_program *Current; /**< User-bound vertex program */
+
+ /** Currently enabled and valid vertex program (including internal
+ * programs, user-defined vertex programs and GLSL vertex shaders).
+ * This is the program we must use when rendering.
+ */
+ struct gl_vertex_program *_Current;
+
+ GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
+
+ /* For GL_NV_vertex_program only: */
+ GLenum TrackMatrix[MAX_PROGRAM_ENV_PARAMS / 4];
+ GLenum TrackMatrixTransform[MAX_PROGRAM_ENV_PARAMS / 4];
+
+ /** Should fixed-function T&L be implemented with a vertex prog? */
+ GLboolean _MaintainTnlProgram;
+
+ /** Program to emulate fixed-function T&L (see above) */
+ struct gl_vertex_program *_TnlProgram;
+
+ /** Cache of fixed-function programs */
+ struct gl_program_cache *Cache;
+
+ GLboolean _Overriden;
+};
+
+
+/**
+ * Context state for geometry programs.
+ */
+struct gl_geometry_program_state
+{
+ GLboolean Enabled; /**< GL_ARB_GEOMETRY_SHADER4 */
+ GLboolean _Enabled; /**< Enabled and valid program? */
+ struct gl_geometry_program *Current; /**< user-bound geometry program */
+
+ /** Currently enabled and valid program (including internal programs
+ * and compiled shader programs).
+ */
+ struct gl_geometry_program *_Current;
+
+ GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
+
+ /** Cache of fixed-function programs */
+ struct gl_program_cache *Cache;
+};
+
+/**
+ * Context state for fragment programs.
+ */
+struct gl_fragment_program_state
+{
+ GLboolean Enabled; /**< User-set fragment program enable flag */
+ GLboolean _Enabled; /**< Enabled and _valid_ user program? */
+ struct gl_fragment_program *Current; /**< User-bound fragment program */
+
+ /** Currently enabled and valid fragment program (including internal
+ * programs, user-defined fragment programs and GLSL fragment shaders).
+ * This is the program we must use when rendering.
+ */
+ struct gl_fragment_program *_Current;
+
+ GLfloat Parameters[MAX_PROGRAM_ENV_PARAMS][4]; /**< Env params */
+
+ /** Should fixed-function texturing be implemented with a fragment prog? */
+ GLboolean _MaintainTexEnvProgram;
+
+ /** Program to emulate fixed-function texture env/combine (see above) */
+ struct gl_fragment_program *_TexEnvProgram;
+
+ /** Cache of fixed-function programs */
+ struct gl_program_cache *Cache;
+};
+
+
+/**
+ * ATI_fragment_shader runtime state
+ */
+#define ATI_FS_INPUT_PRIMARY 0
+#define ATI_FS_INPUT_SECONDARY 1
+
+struct atifs_instruction;
+struct atifs_setupinst;
+
+/**
+ * ATI fragment shader
+ */
+struct ati_fragment_shader
+{
+ GLuint Id;
+ GLint RefCount;
+ struct atifs_instruction *Instructions[2];
+ struct atifs_setupinst *SetupInst[2];
+ GLfloat Constants[8][4];
+ GLbitfield LocalConstDef; /**< Indicates which constants have been set */
+ GLubyte numArithInstr[2];
+ GLubyte regsAssigned[2];
+ GLubyte NumPasses; /**< 1 or 2 */
+ GLubyte cur_pass;
+ GLubyte last_optype;
+ GLboolean interpinp1;
+ GLboolean isValid;
+ GLuint swizzlerq;
+};
+
+/**
+ * Context state for GL_ATI_fragment_shader
+ */
+struct gl_ati_fragment_shader_state
+{
+ GLboolean Enabled;
+ GLboolean _Enabled; /**< enabled and valid shader? */
+ GLboolean Compiling;
+ GLfloat GlobalConstants[8][4];
+ struct ati_fragment_shader *Current;
+};
+
+
+/**
+ * Occlusion/timer query object.
+ */
+struct gl_query_object
+{
+ GLenum Target; /**< The query target, when active */
+ GLuint Id; /**< hash table ID/name */
+ GLuint64EXT Result; /**< the counter */
+ GLboolean Active; /**< inside Begin/EndQuery */
+ GLboolean Ready; /**< result is ready? */
+};
+
+
+/**
+ * Context state for query objects.
+ */
+struct gl_query_state
+{
+ struct _mesa_HashTable *QueryObjects;
+ struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */
+ struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */
+
+ /** GL_NV_conditional_render */
+ struct gl_query_object *CondRenderQuery;
+
+ /** GL_EXT_transform_feedback */
+ struct gl_query_object *PrimitivesGenerated;
+ struct gl_query_object *PrimitivesWritten;
+
+ /** GL_ARB_timer_query */
+ struct gl_query_object *TimeElapsed;
+
+ GLenum CondRenderMode;
+};
+
+
+/** Sync object state */
+struct gl_sync_object {
+ struct simple_node link;
+ GLenum Type; /**< GL_SYNC_FENCE */
+ GLuint Name; /**< Fence name */
+ GLint RefCount; /**< Reference count */
+ GLboolean DeletePending; /**< Object was deleted while there were still
+ * live references (e.g., sync not yet finished)
+ */
+ GLenum SyncCondition;
+ GLbitfield Flags; /**< Flags passed to glFenceSync */
+ GLuint StatusFlag:1; /**< Has the sync object been signaled? */
+};
+
+
+/** Set by #pragma directives */
+struct gl_sl_pragmas
+{
+ GLboolean IgnoreOptimize; /**< ignore #pragma optimize(on/off) ? */
+ GLboolean IgnoreDebug; /**< ignore #pragma debug(on/off) ? */
+ GLboolean Optimize; /**< defaults on */
+ GLboolean Debug; /**< defaults off */
+};
+
+
+/**
+ * A GLSL vertex or fragment shader object.
+ */
+struct gl_shader
+{
+ GLenum Type; /**< GL_FRAGMENT_SHADER || GL_VERTEX_SHADER || GL_GEOMETRY_SHADER_ARB (first field!) */
+ GLuint Name; /**< AKA the handle */
+ GLint RefCount; /**< Reference count */
+ GLboolean DeletePending;
+ GLboolean CompileStatus;
+ const GLchar *Source; /**< Source code string */
+ GLuint SourceChecksum; /**< for debug/logging purposes */
+ struct gl_program *Program; /**< Post-compile assembly code */
+ GLchar *InfoLog;
+ struct gl_sl_pragmas Pragmas;
+
+ unsigned Version; /**< GLSL version used for linking */
+
+ struct exec_list *ir;
+ struct glsl_symbol_table *symbols;
+
+ /** Shaders containing built-in functions that are used for linking. */
+ struct gl_shader *builtins_to_link[16];
+ unsigned num_builtins_to_link;
+};
+
+
+/**
+ * A GLSL program object.
+ * Basically a linked collection of vertex and fragment shaders.
+ */
+struct gl_shader_program
+{
+ GLenum Type; /**< Always GL_SHADER_PROGRAM (internal token) */
+ GLuint Name; /**< aka handle or ID */
+ GLint RefCount; /**< Reference count */
+ GLboolean DeletePending;
+
+ GLuint NumShaders; /**< number of attached shaders */
+ struct gl_shader **Shaders; /**< List of attached the shaders */
+
+ /** User-defined attribute bindings (glBindAttribLocation) */
+ struct gl_program_parameter_list *Attributes;
+
+ /** Transform feedback varyings */
+ struct {
+ GLenum BufferMode;
+ GLuint NumVarying;
+ GLchar **VaryingNames; /**< Array [NumVarying] of char * */
+ } TransformFeedback;
+
+ /** Geometry shader state - copied into gl_geometry_program at link time */
+ struct {
+ GLint VerticesOut;
+ GLenum InputType; /**< GL_POINTS, GL_LINES, GL_LINES_ADJACENCY_ARB,
+ GL_TRIANGLES, or GL_TRIANGLES_ADJACENCY_ARB */
+ GLenum OutputType; /**< GL_POINTS, GL_LINE_STRIP or GL_TRIANGLE_STRIP */
+ } Geom;
+
+ /* post-link info: */
+ struct gl_vertex_program *VertexProgram; /**< Linked vertex program */
+ struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */
+ struct gl_geometry_program *GeometryProgram; /**< Linked geometry prog */
+ struct gl_uniform_list *Uniforms;
+ struct gl_program_parameter_list *Varying;
+ GLboolean LinkStatus; /**< GL_LINK_STATUS */
+ GLboolean Validated;
+ GLboolean _Used; /**< Ever used for drawing? */
+ GLchar *InfoLog;
+
+ unsigned Version; /**< GLSL version used for linking */
+
+ /**
+ * Per-stage shaders resulting from the first stage of linking.
+ *
+ * Set of linked shaders for this program. The array is accessed using the
+ * \c MESA_SHADER_* defines. Entries for non-existent stages will be
+ * \c NULL.
+ */
+ struct gl_shader *_LinkedShaders[MESA_SHADER_TYPES];
+};
+
+
+#define GLSL_DUMP 0x1 /**< Dump shaders to stdout */
+#define GLSL_LOG 0x2 /**< Write shaders to files */
+#define GLSL_OPT 0x4 /**< Force optimizations (override pragmas) */
+#define GLSL_NO_OPT 0x8 /**< Force no optimizations (override pragmas) */
+#define GLSL_UNIFORMS 0x10 /**< Print glUniform calls */
+#define GLSL_NOP_VERT 0x20 /**< Force no-op vertex shaders */
+#define GLSL_NOP_FRAG 0x40 /**< Force no-op fragment shaders */
+#define GLSL_USE_PROG 0x80 /**< Log glUseProgram calls */
+
+
+/**
+ * Context state for GLSL vertex/fragment shaders.
+ */
+struct gl_shader_state
+{
+ /**
+ * Programs used for rendering
+ *
+ * There is a separate program set for each shader stage. If
+ * GL_EXT_separate_shader_objects is not supported, each of these must point
+ * to \c NULL or to the same program.
+ */
+ struct gl_shader_program *CurrentVertexProgram;
+ struct gl_shader_program *CurrentGeometryProgram;
+ struct gl_shader_program *CurrentFragmentProgram;
+
+ /**
+ * Program used by glUniform calls.
+ *
+ * Explicitly set by \c glUseProgram and \c glActiveProgramEXT.
+ */
+ struct gl_shader_program *ActiveProgram;
+
+ void *MemPool;
+
+ GLbitfield Flags; /**< Mask of GLSL_x flags */
+};
+
+/**
+ * Compiler options for a single GLSL shaders type
+ */
+struct gl_shader_compiler_options
+{
+ /** Driver-selectable options: */
+ GLboolean EmitCondCodes; /**< Use condition codes? */
+ GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */
+ /**
+ * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
+ * support control flow.
+ */
+ GLboolean EmitNoIfs;
+ GLboolean EmitNoLoops;
+ GLboolean EmitNoFunctions;
+ GLboolean EmitNoCont; /**< Emit CONT opcode? */
+ GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */
+ GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */
+ GLboolean EmitNoPow; /**< Emit POW opcodes? */
+
+ /**
+ * \name Forms of indirect addressing the driver cannot do.
+ */
+ /*@{*/
+ GLboolean EmitNoIndirectInput; /**< No indirect addressing of inputs */
+ GLboolean EmitNoIndirectOutput; /**< No indirect addressing of outputs */
+ GLboolean EmitNoIndirectTemp; /**< No indirect addressing of temps */
+ GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */
+ /*@}*/
+
+ GLuint MaxUnrollIterations;
+
+ struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
+};
+
+/**
+ * Transform feedback object state
+ */
+struct gl_transform_feedback_object
+{
+ GLuint Name; /**< AKA the object ID */
+ GLint RefCount;
+ GLboolean Active; /**< Is transform feedback enabled? */
+ GLboolean Paused; /**< Is transform feedback paused? */
+
+ /** The feedback buffers */
+ GLuint BufferNames[MAX_FEEDBACK_ATTRIBS];
+ struct gl_buffer_object *Buffers[MAX_FEEDBACK_ATTRIBS];
+
+ /** Start of feedback data in dest buffer */
+ GLintptr Offset[MAX_FEEDBACK_ATTRIBS];
+ /** Max data to put into dest buffer (in bytes) */
+ GLsizeiptr Size[MAX_FEEDBACK_ATTRIBS];
+};
+
+
+/**
+ * Context state for transform feedback.
+ */
+struct gl_transform_feedback
+{
+ GLenum Mode; /**< GL_POINTS, GL_LINES or GL_TRIANGLES */
+
+ GLboolean RasterDiscard; /**< GL_RASTERIZER_DISCARD */
+
+ /** The general binding point (GL_TRANSFORM_FEEDBACK_BUFFER) */
+ struct gl_buffer_object *CurrentBuffer;
+
+ /** The table of all transform feedback objects */
+ struct _mesa_HashTable *Objects;
+
+ /** The current xform-fb object (GL_TRANSFORM_FEEDBACK_BINDING) */
+ struct gl_transform_feedback_object *CurrentObject;
+
+ /** The default xform-fb object (Name==0) */
+ struct gl_transform_feedback_object *DefaultObject;
+};
+
+
+
+/**
+ * State which can be shared by multiple contexts:
+ */
+struct gl_shared_state
+{
+ _glthread_Mutex Mutex; /**< for thread safety */
+ GLint RefCount; /**< Reference count */
+ struct _mesa_HashTable *DisplayList; /**< Display lists hash table */
+ struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */
+
+ /** Default texture objects (shared by all texture units) */
+ struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS];
+
+ /** Fallback texture used when a bound texture is incomplete */
+ struct gl_texture_object *FallbackTex;
+
+ /**
+ * \name Thread safety and statechange notification for texture
+ * objects.
+ *
+ * \todo Improve the granularity of locking.
+ */
+ /*@{*/
+ _glthread_Mutex TexMutex; /**< texobj thread safety */
+ GLuint TextureStateStamp; /**< state notification for shared tex */
+ /*@}*/
+
+ /** Default buffer object for vertex arrays that aren't in VBOs */
+ struct gl_buffer_object *NullBufferObj;
+
+ /**
+ * \name Vertex/geometry/fragment programs
+ */
+ /*@{*/
+ struct _mesa_HashTable *Programs; /**< All vertex/fragment programs */
+ struct gl_vertex_program *DefaultVertexProgram;
+ struct gl_fragment_program *DefaultFragmentProgram;
+ struct gl_geometry_program *DefaultGeometryProgram;
+ /*@}*/
+
+ /* GL_ATI_fragment_shader */
+ struct _mesa_HashTable *ATIShaders;
+ struct ati_fragment_shader *DefaultFragmentShader;
+
+ struct _mesa_HashTable *BufferObjects;
+
+ /** Table of both gl_shader and gl_shader_program objects */
+ struct _mesa_HashTable *ShaderObjects;
+
+ /* GL_EXT_framebuffer_object */
+ struct _mesa_HashTable *RenderBuffers;
+ struct _mesa_HashTable *FrameBuffers;
+
+ /* GL_ARB_sync */
+ struct simple_node SyncObjects;
+
+ void *DriverData; /**< Device driver shared state */
+};
+
+
+
+
+/**
+ * A renderbuffer stores colors or depth values or stencil values.
+ * A framebuffer object will have a collection of these.
+ * Data are read/written to the buffer with a handful of Get/Put functions.
+ *
+ * Instances of this object are allocated with the Driver's NewRenderbuffer
+ * hook. Drivers will likely wrap this class inside a driver-specific
+ * class to simulate inheritance.
+ */
+struct gl_renderbuffer
+{
+#define RB_MAGIC 0xaabbccdd
+ int Magic; /** XXX TEMPORARY DEBUG INFO */
+ _glthread_Mutex Mutex; /**< for thread safety */
+ GLuint ClassID; /**< Useful for drivers */
+ GLuint Name;
+ GLint RefCount;
+ GLuint Width, Height;
+ GLboolean Purgeable; /**< Is the buffer purgeable under memory pressure? */
+
+ GLenum InternalFormat; /**< The user-specified format */
+ GLenum _BaseFormat; /**< Either GL_RGB, GL_RGBA, GL_DEPTH_COMPONENT or
+ GL_STENCIL_INDEX. */
+ gl_format Format; /**< The actual renderbuffer memory format */
+
+ GLubyte NumSamples;
+
+ GLenum DataType; /**< Type of values passed to the Get/Put functions */
+ GLvoid *Data; /**< This may not be used by some kinds of RBs */
+
+ GLboolean AttachedAnytime; /**< TRUE if it was attached to a framebuffer */
+
+ /* Used to wrap one renderbuffer around another: */
+ struct gl_renderbuffer *Wrapped;
+
+ /* Delete this renderbuffer */
+ void (*Delete)(struct gl_renderbuffer *rb);
+
+ /* Allocate new storage for this renderbuffer */
+ GLboolean (*AllocStorage)(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLenum internalFormat,
+ GLuint width, GLuint height);
+
+ /* Lock/Unlock are called before/after calling the Get/Put functions.
+ * Not sure this is the right place for these yet.
+ void (*Lock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
+ void (*Unlock)(struct gl_context *ctx, struct gl_renderbuffer *rb);
+ */
+
+ /* Return a pointer to the element/pixel at (x,y).
+ * Should return NULL if the buffer memory can't be directly addressed.
+ */
+ void *(*GetPointer)(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLint x, GLint y);
+
+ /* Get/Read a row of values.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*GetRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, void *values);
+
+ /* Get/Read values at arbitrary locations.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*GetValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ const GLint x[], const GLint y[], void *values);
+
+ /* Put/Write a row of values.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*PutRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *values, const GLubyte *mask);
+
+ /* Put/Write a row of RGB values. This is a special-case routine that's
+ * only used for RGBA renderbuffers when the source data is GL_RGB. That's
+ * a common case for glDrawPixels and some triangle routines.
+ * The values will be of format GL_RGB and type DataType.
+ */
+ void (*PutRowRGB)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *values, const GLubyte *mask);
+
+
+ /* Put/Write a row of identical values.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*PutMonoRow)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ GLint x, GLint y, const void *value, const GLubyte *mask);
+
+ /* Put/Write values at arbitrary locations.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*PutValues)(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count,
+ const GLint x[], const GLint y[], const void *values,
+ const GLubyte *mask);
+ /* Put/Write identical values at arbitrary locations.
+ * The values will be of format _BaseFormat and type DataType.
+ */
+ void (*PutMonoValues)(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *value, const GLubyte *mask);
+};
+
+
+/**
+ * A renderbuffer attachment points to either a texture object (and specifies
+ * a mipmap level, cube face or 3D texture slice) or points to a renderbuffer.
+ */
+struct gl_renderbuffer_attachment
+{
+ GLenum Type; /**< \c GL_NONE or \c GL_TEXTURE or \c GL_RENDERBUFFER_EXT */
+ GLboolean Complete;
+
+ /**
+ * If \c Type is \c GL_RENDERBUFFER_EXT, this stores a pointer to the
+ * application supplied renderbuffer object.
+ */
+ struct gl_renderbuffer *Renderbuffer;
+
+ /**
+ * If \c Type is \c GL_TEXTURE, this stores a pointer to the application
+ * supplied texture object.
+ */
+ struct gl_texture_object *Texture;
+ GLuint TextureLevel; /**< Attached mipmap level. */
+ GLuint CubeMapFace; /**< 0 .. 5, for cube map textures. */
+ GLuint Zoffset; /**< Slice for 3D textures, or layer for both 1D
+ * and 2D array textures */
+};
+
+
+/**
+ * A framebuffer is a collection of renderbuffers (color, depth, stencil, etc).
+ * In C++ terms, think of this as a base class from which device drivers
+ * will make derived classes.
+ */
+struct gl_framebuffer
+{
+ _glthread_Mutex Mutex; /**< for thread safety */
+ /**
+ * If zero, this is a window system framebuffer. If non-zero, this
+ * is a FBO framebuffer; note that for some devices (i.e. those with
+ * a natural pixel coordinate system for FBOs that differs from the
+ * OpenGL/Mesa coordinate system), this means that the viewport,
+ * polygon face orientation, and polygon stipple will have to be inverted.
+ */
+ GLuint Name;
+
+ GLint RefCount;
+ GLboolean DeletePending;
+
+ /**
+ * The framebuffer's visual. Immutable if this is a window system buffer.
+ * Computed from attachments if user-made FBO.
+ */
+ struct gl_config Visual;
+
+ GLboolean Initialized;
+
+ GLuint Width, Height; /**< size of frame buffer in pixels */
+
+ /** \name Drawing bounds (Intersection of buffer size and scissor box) */
+ /*@{*/
+ GLint _Xmin, _Xmax; /**< inclusive */
+ GLint _Ymin, _Ymax; /**< exclusive */
+ /*@}*/
+
+ /** \name Derived Z buffer stuff */
+ /*@{*/
+ GLuint _DepthMax; /**< Max depth buffer value */
+ GLfloat _DepthMaxF; /**< Float max depth buffer value */
+ GLfloat _MRD; /**< minimum resolvable difference in Z values */
+ /*@}*/
+
+ /** One of the GL_FRAMEBUFFER_(IN)COMPLETE_* tokens */
+ GLenum _Status;
+
+ /** Integer color values */
+ GLboolean _IntegerColor;
+
+ /** Array of all renderbuffer attachments, indexed by BUFFER_* tokens. */
+ struct gl_renderbuffer_attachment Attachment[BUFFER_COUNT];
+
+ /* In unextended OpenGL these vars are part of the GL_COLOR_BUFFER
+ * attribute group and GL_PIXEL attribute group, respectively.
+ */
+ GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS];
+ GLenum ColorReadBuffer;
+
+ /** Computed from ColorDraw/ReadBuffer above */
+ GLuint _NumColorDrawBuffers;
+ GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */
+ GLint _ColorReadBufferIndex; /* -1 = None */
+ struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];
+ struct gl_renderbuffer *_ColorReadBuffer;
+
+ /** The Actual depth/stencil buffers to use. May be wrappers around the
+ * depth/stencil buffers attached above. */
+ struct gl_renderbuffer *_DepthBuffer;
+ struct gl_renderbuffer *_StencilBuffer;
+
+ /** Delete this framebuffer */
+ void (*Delete)(struct gl_framebuffer *fb);
+};
+
+
+/**
+ * Precision info for shader datatypes. See glGetShaderPrecisionFormat().
+ */
+struct gl_precision
+{
+ GLushort RangeMin; /**< min value exponent */
+ GLushort RangeMax; /**< max value exponent */
+ GLushort Precision; /**< number of mantissa bits */
+};
+
+
+/**
+ * Limits for vertex, geometry and fragment programs/shaders.
+ */
+struct gl_program_constants
+{
+ /* logical limits */
+ GLuint MaxInstructions;
+ GLuint MaxAluInstructions;
+ GLuint MaxTexInstructions;
+ GLuint MaxTexIndirections;
+ GLuint MaxAttribs;
+ GLuint MaxTemps;
+ GLuint MaxAddressRegs;
+ GLuint MaxAddressOffset; /**< [-MaxAddressOffset, MaxAddressOffset-1] */
+ GLuint MaxParameters;
+ GLuint MaxLocalParams;
+ GLuint MaxEnvParams;
+ /* native/hardware limits */
+ GLuint MaxNativeInstructions;
+ GLuint MaxNativeAluInstructions;
+ GLuint MaxNativeTexInstructions;
+ GLuint MaxNativeTexIndirections;
+ GLuint MaxNativeAttribs;
+ GLuint MaxNativeTemps;
+ GLuint MaxNativeAddressRegs;
+ GLuint MaxNativeParameters;
+ /* For shaders */
+ GLuint MaxUniformComponents; /**< Usually == MaxParameters * 4 */
+ /* ES 2.0 and GL_ARB_ES2_compatibility */
+ struct gl_precision LowFloat, MediumFloat, HighFloat;
+ struct gl_precision LowInt, MediumInt, HighInt;
+};
+
+
+/**
+ * Constants which may be overridden by device driver during context creation
+ * but are never changed after that.
+ */
+struct gl_constants
+{
+ GLint MaxTextureMbytes; /**< Max memory per image, in MB */
+ GLint MaxTextureLevels; /**< Max mipmap levels. */
+ GLint Max3DTextureLevels; /**< Max mipmap levels for 3D textures */
+ GLint MaxCubeTextureLevels; /**< Max mipmap levels for cube textures */
+ GLint MaxArrayTextureLayers; /**< Max layers in array textures */
+ GLint MaxTextureRectSize; /**< Max rectangle texture size, in pixes */
+ GLuint MaxTextureCoordUnits;
+ GLuint MaxTextureImageUnits;
+ GLuint MaxVertexTextureImageUnits;
+ GLuint MaxCombinedTextureImageUnits;
+ GLuint MaxGeometryTextureImageUnits;
+ GLuint MaxTextureUnits; /**< = MIN(CoordUnits, ImageUnits) */
+ GLfloat MaxTextureMaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */
+ GLfloat MaxTextureLodBias; /**< GL_EXT_texture_lod_bias */
+
+ GLuint MaxArrayLockSize;
+
+ GLint SubPixelBits;
+
+ GLfloat MinPointSize, MaxPointSize; /**< aliased */
+ GLfloat MinPointSizeAA, MaxPointSizeAA; /**< antialiased */
+ GLfloat PointSizeGranularity;
+ GLfloat MinLineWidth, MaxLineWidth; /**< aliased */
+ GLfloat MinLineWidthAA, MaxLineWidthAA; /**< antialiased */
+ GLfloat LineWidthGranularity;
+
+ GLuint MaxColorTableSize;
+
+ GLuint MaxClipPlanes;
+ GLuint MaxLights;
+ GLfloat MaxShininess; /**< GL_NV_light_max_exponent */
+ GLfloat MaxSpotExponent; /**< GL_NV_light_max_exponent */
+
+ GLuint MaxViewportWidth, MaxViewportHeight;
+
+ struct gl_program_constants VertexProgram; /**< GL_ARB_vertex_program */
+ struct gl_program_constants FragmentProgram; /**< GL_ARB_fragment_program */
+ struct gl_program_constants GeometryProgram; /**< GL_ARB_geometry_shader4 */
+ GLuint MaxProgramMatrices;
+ GLuint MaxProgramMatrixStackDepth;
+
+ /** vertex array / buffer object bounds checking */
+ GLboolean CheckArrayBounds;
+
+ GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */
+
+ GLuint MaxColorAttachments; /**< GL_EXT_framebuffer_object */
+ GLuint MaxRenderbufferSize; /**< GL_EXT_framebuffer_object */
+ GLuint MaxSamples; /**< GL_ARB_framebuffer_object */
+
+ /** Number of varying vectors between vertex and fragment shaders */
+ GLuint MaxVarying;
+ GLuint MaxVertexVaryingComponents; /**< Between vert and geom shader */
+ GLuint MaxGeometryVaryingComponents; /**< Between geom and frag shader */
+
+ /** GL_ARB_geometry_shader4 */
+ GLuint MaxGeometryOutputVertices;
+ GLuint MaxGeometryTotalOutputComponents;
+
+ GLuint GLSLVersion; /**< GLSL version supported (ex: 120 = 1.20) */
+
+ /** Which texture units support GL_ATI_envmap_bumpmap as targets */
+ GLbitfield SupportedBumpUnits;
+
+ /**
+ * Maximum amount of time, measured in nanseconds, that the server can wait.
+ */
+ GLuint64 MaxServerWaitTimeout;
+
+ /** GL_EXT_provoking_vertex */
+ GLboolean QuadsFollowProvokingVertexConvention;
+
+ /** OpenGL version 3.0 */
+ GLbitfield ContextFlags; /**< Ex: GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT */
+
+ /** OpenGL version 3.2 */
+ GLbitfield ProfileMask; /**< Mask of CONTEXT_x_PROFILE_BIT */
+
+ /** GL_EXT_transform_feedback */
+ GLuint MaxTransformFeedbackSeparateAttribs;
+ GLuint MaxTransformFeedbackSeparateComponents;
+ GLuint MaxTransformFeedbackInterleavedComponents;
+
+ /** GL_EXT_gpu_shader4 */
+ GLint MinProgramTexelOffset, MaxProgramTexelOffset;
+
+ /* GL_EXT_framebuffer_sRGB */
+ GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */
+};
+
+
+/**
+ * Enable flag for each OpenGL extension. Different device drivers will
+ * enable different extensions at runtime.
+ */
+struct gl_extensions
+{
+ GLboolean dummy; /* don't remove this! */
+ GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */
+ GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
+ GLboolean ARB_ES2_compatibility;
+ GLboolean ARB_blend_func_extended;
+ GLboolean ARB_copy_buffer;
+ GLboolean ARB_depth_buffer_float;
+ GLboolean ARB_depth_clamp;
+ GLboolean ARB_depth_texture;
+ GLboolean ARB_draw_buffers;
+ GLboolean ARB_draw_buffers_blend;
+ GLboolean ARB_draw_elements_base_vertex;
+ GLboolean ARB_draw_instanced;
+ GLboolean ARB_fragment_coord_conventions;
+ GLboolean ARB_fragment_program;
+ GLboolean ARB_fragment_program_shadow;
+ GLboolean ARB_fragment_shader;
+ GLboolean ARB_framebuffer_object;
+ GLboolean ARB_explicit_attrib_location;
+ GLboolean ARB_geometry_shader4;
+ GLboolean ARB_half_float_pixel;
+ GLboolean ARB_half_float_vertex;
+ GLboolean ARB_instanced_arrays;
+ GLboolean ARB_map_buffer_range;
+ GLboolean ARB_multisample;
+ GLboolean ARB_multitexture;
+ GLboolean ARB_occlusion_query;
+ GLboolean ARB_occlusion_query2;
+ GLboolean ARB_point_sprite;
+ GLboolean ARB_sampler_objects;
+ GLboolean ARB_seamless_cube_map;
+ GLboolean ARB_shader_objects;
+ GLboolean ARB_shader_stencil_export;
+ GLboolean ARB_shading_language_100;
+ GLboolean ARB_shadow;
+ GLboolean ARB_shadow_ambient;
+ GLboolean ARB_sync;
+ GLboolean ARB_texture_border_clamp;
+ GLboolean ARB_texture_buffer_object;
+ GLboolean ARB_texture_compression;
+ GLboolean ARB_texture_compression_rgtc;
+ GLboolean ARB_texture_cube_map;
+ GLboolean ARB_texture_env_combine;
+ GLboolean ARB_texture_env_crossbar;
+ GLboolean ARB_texture_env_dot3;
+ GLboolean ARB_texture_float;
+ GLboolean ARB_texture_mirrored_repeat;
+ GLboolean ARB_texture_multisample;
+ GLboolean ARB_texture_non_power_of_two;
+ GLboolean ARB_texture_rg;
+ GLboolean ARB_texture_rgb10_a2ui;
+ GLboolean ARB_timer_query;
+ GLboolean ARB_transform_feedback2;
+ GLboolean ARB_transpose_matrix;
+ GLboolean ARB_uniform_buffer_object;
+ GLboolean ARB_vertex_array_object;
+ GLboolean ARB_vertex_buffer_object;
+ GLboolean ARB_vertex_program;
+ GLboolean ARB_vertex_shader;
+ GLboolean ARB_vertex_type_2_10_10_10_rev;
+ GLboolean ARB_window_pos;
+ GLboolean EXT_abgr;
+ GLboolean EXT_bgra;
+ GLboolean EXT_blend_color;
+ GLboolean EXT_blend_equation_separate;
+ GLboolean EXT_blend_func_separate;
+ GLboolean EXT_blend_logic_op;
+ GLboolean EXT_blend_minmax;
+ GLboolean EXT_blend_subtract;
+ GLboolean EXT_clip_volume_hint;
+ GLboolean EXT_compiled_vertex_array;
+ GLboolean EXT_copy_texture;
+ GLboolean EXT_depth_bounds_test;
+ GLboolean EXT_draw_buffers2;
+ GLboolean EXT_draw_range_elements;
+ GLboolean EXT_fog_coord;
+ GLboolean EXT_framebuffer_blit;
+ GLboolean EXT_framebuffer_multisample;
+ GLboolean EXT_framebuffer_object;
+ GLboolean EXT_framebuffer_sRGB;
+ GLboolean EXT_gpu_program_parameters;
+ GLboolean EXT_gpu_shader4;
+ GLboolean EXT_multi_draw_arrays;
+ GLboolean EXT_paletted_texture;
+ GLboolean EXT_packed_depth_stencil;
+ GLboolean EXT_packed_float;
+ GLboolean EXT_packed_pixels;
+ GLboolean EXT_pixel_buffer_object;
+ GLboolean EXT_point_parameters;
+ GLboolean EXT_polygon_offset;
+ GLboolean EXT_provoking_vertex;
+ GLboolean EXT_rescale_normal;
+ GLboolean EXT_shadow_funcs;
+ GLboolean EXT_secondary_color;
+ GLboolean EXT_separate_shader_objects;
+ GLboolean EXT_separate_specular_color;
+ GLboolean EXT_shared_texture_palette;
+ GLboolean EXT_stencil_wrap;
+ GLboolean EXT_stencil_two_side;
+ GLboolean EXT_subtexture;
+ GLboolean EXT_texture;
+ GLboolean EXT_texture_object;
+ GLboolean EXT_texture3D;
+ GLboolean EXT_texture_array;
+ GLboolean EXT_texture_compression_latc;
+ GLboolean EXT_texture_compression_s3tc;
+ GLboolean EXT_texture_env_add;
+ GLboolean EXT_texture_env_combine;
+ GLboolean EXT_texture_env_dot3;
+ GLboolean EXT_texture_filter_anisotropic;
+ GLboolean EXT_texture_integer;
+ GLboolean EXT_texture_lod_bias;
+ GLboolean EXT_texture_mirror_clamp;
+ GLboolean EXT_texture_shared_exponent;
+ GLboolean EXT_texture_sRGB;
+ GLboolean EXT_texture_sRGB_decode;
+ GLboolean EXT_texture_swizzle;
+ GLboolean EXT_transform_feedback;
+ GLboolean EXT_timer_query;
+ GLboolean EXT_vertex_array;
+ GLboolean EXT_vertex_array_bgra;
+ GLboolean EXT_vertex_array_set;
+ GLboolean OES_standard_derivatives;
+ /* vendor extensions */
+ GLboolean AMD_conservative_depth;
+ GLboolean APPLE_client_storage;
+ GLboolean APPLE_packed_pixels;
+ GLboolean APPLE_vertex_array_object;
+ GLboolean APPLE_object_purgeable;
+ GLboolean ATI_envmap_bumpmap;
+ GLboolean ATI_texture_compression_3dc;
+ GLboolean ATI_texture_mirror_once;
+ GLboolean ATI_texture_env_combine3;
+ GLboolean ATI_fragment_shader;
+ GLboolean ATI_separate_stencil;
+ GLboolean IBM_rasterpos_clip;
+ GLboolean IBM_multimode_draw_arrays;
+ GLboolean MESA_pack_invert;
+ GLboolean MESA_resize_buffers;
+ GLboolean MESA_ycbcr_texture;
+ GLboolean MESA_texture_array;
+ GLboolean MESA_texture_signed_rgba;
+ GLboolean NV_blend_square;
+ GLboolean NV_conditional_render;
+ GLboolean NV_fragment_program;
+ GLboolean NV_fragment_program_option;
+ GLboolean NV_light_max_exponent;
+ GLboolean NV_point_sprite;
+ GLboolean NV_primitive_restart;
+ GLboolean NV_texture_barrier;
+ GLboolean NV_texgen_reflection;
+ GLboolean NV_texture_env_combine4;
+ GLboolean NV_texture_rectangle;
+ GLboolean NV_vertex_program;
+ GLboolean NV_vertex_program1_1;
+ GLboolean OES_read_format;
+ GLboolean SGIS_generate_mipmap;
+ GLboolean SGIS_texture_edge_clamp;
+ GLboolean SGIS_texture_lod;
+ GLboolean TDFX_texture_compression_FXT1;
+ GLboolean S3_s3tc;
+ GLboolean OES_EGL_image;
+ GLboolean OES_draw_texture;
+ GLboolean EXT_texture_format_BGRA8888;
+ GLboolean extension_sentinel;
+ /** The extension string */
+ const GLubyte *String;
+ /** Number of supported extensions */
+ GLuint Count;
+};
+
+
+/**
+ * A stack of matrices (projection, modelview, color, texture, etc).
+ */
+struct gl_matrix_stack
+{
+ GLmatrix *Top; /**< points into Stack */
+ GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */
+ GLuint Depth; /**< 0 <= Depth < MaxDepth */
+ GLuint MaxDepth; /**< size of Stack[] array */
+ GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */
+};
+
+
+/**
+ * \name Bits for image transfer operations
+ * \sa __struct gl_contextRec::ImageTransferState.
+ */
+/*@{*/
+#define IMAGE_SCALE_BIAS_BIT 0x1
+#define IMAGE_SHIFT_OFFSET_BIT 0x2
+#define IMAGE_MAP_COLOR_BIT 0x4
+#define IMAGE_CLAMP_BIT 0x800
+
+
+/** Pixel Transfer ops */
+#define IMAGE_BITS (IMAGE_SCALE_BIAS_BIT | \
+ IMAGE_SHIFT_OFFSET_BIT | \
+ IMAGE_MAP_COLOR_BIT)
+
+/**
+ * \name Bits to indicate what state has changed.
+ */
+/*@{*/
+#define _NEW_MODELVIEW (1 << 0) /**< gl_context::ModelView */
+#define _NEW_PROJECTION (1 << 1) /**< gl_context::Projection */
+#define _NEW_TEXTURE_MATRIX (1 << 2) /**< gl_context::TextureMatrix */
+#define _NEW_COLOR (1 << 3) /**< gl_context::Color */
+#define _NEW_DEPTH (1 << 4) /**< gl_context::Depth */
+#define _NEW_EVAL (1 << 5) /**< gl_context::Eval, EvalMap */
+#define _NEW_FOG (1 << 6) /**< gl_context::Fog */
+#define _NEW_HINT (1 << 7) /**< gl_context::Hint */
+#define _NEW_LIGHT (1 << 8) /**< gl_context::Light */
+#define _NEW_LINE (1 << 9) /**< gl_context::Line */
+#define _NEW_PIXEL (1 << 10) /**< gl_context::Pixel */
+#define _NEW_POINT (1 << 11) /**< gl_context::Point */
+#define _NEW_POLYGON (1 << 12) /**< gl_context::Polygon */
+#define _NEW_POLYGONSTIPPLE (1 << 13) /**< gl_context::PolygonStipple */
+#define _NEW_SCISSOR (1 << 14) /**< gl_context::Scissor */
+#define _NEW_STENCIL (1 << 15) /**< gl_context::Stencil */
+#define _NEW_TEXTURE (1 << 16) /**< gl_context::Texture */
+#define _NEW_TRANSFORM (1 << 17) /**< gl_context::Transform */
+#define _NEW_VIEWPORT (1 << 18) /**< gl_context::Viewport */
+#define _NEW_PACKUNPACK (1 << 19) /**< gl_context::Pack, Unpack */
+#define _NEW_ARRAY (1 << 20) /**< gl_context::Array */
+#define _NEW_RENDERMODE (1 << 21) /**< gl_context::RenderMode, etc */
+#define _NEW_BUFFERS (1 << 22) /**< gl_context::Visual, DrawBuffer, */
+#define _NEW_CURRENT_ATTRIB (1 << 23) /**< gl_context::Current */
+#define _NEW_MULTISAMPLE (1 << 24) /**< gl_context::Multisample */
+#define _NEW_TRACK_MATRIX (1 << 25) /**< gl_context::VertexProgram */
+#define _NEW_PROGRAM (1 << 26) /**< New program/shader state */
+#define _NEW_PROGRAM_CONSTANTS (1 << 27)
+#define _NEW_BUFFER_OBJECT (1 << 28)
+#define _NEW_ALL ~0
+/*@}*/
+
+
+/**
+ * \name Bits to track array state changes
+ *
+ * Also used to summarize array enabled.
+ */
+/*@{*/
+#define _NEW_ARRAY_VERTEX VERT_BIT_POS
+#define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT
+#define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL
+#define _NEW_ARRAY_COLOR0 VERT_BIT_COLOR0
+#define _NEW_ARRAY_COLOR1 VERT_BIT_COLOR1
+#define _NEW_ARRAY_FOGCOORD VERT_BIT_FOG
+#define _NEW_ARRAY_INDEX VERT_BIT_COLOR_INDEX
+#define _NEW_ARRAY_EDGEFLAG VERT_BIT_EDGEFLAG
+#define _NEW_ARRAY_POINT_SIZE VERT_BIT_COLOR_INDEX /* aliased */
+#define _NEW_ARRAY_TEXCOORD_0 VERT_BIT_TEX0
+#define _NEW_ARRAY_TEXCOORD_1 VERT_BIT_TEX1
+#define _NEW_ARRAY_TEXCOORD_2 VERT_BIT_TEX2
+#define _NEW_ARRAY_TEXCOORD_3 VERT_BIT_TEX3
+#define _NEW_ARRAY_TEXCOORD_4 VERT_BIT_TEX4
+#define _NEW_ARRAY_TEXCOORD_5 VERT_BIT_TEX5
+#define _NEW_ARRAY_TEXCOORD_6 VERT_BIT_TEX6
+#define _NEW_ARRAY_TEXCOORD_7 VERT_BIT_TEX7
+#define _NEW_ARRAY_ATTRIB_0 VERT_BIT_GENERIC0 /* start at bit 16 */
+#define _NEW_ARRAY_ALL 0xffffffff
+
+
+#define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i))
+#define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i))
+/*@}*/
+
+
+
+/**
+ * \name A bunch of flags that we think might be useful to drivers.
+ *
+ * Set in the __struct gl_contextRec::_TriangleCaps bitfield.
+ */
+/*@{*/
+#define DD_FLATSHADE 0x1
+#define DD_SEPARATE_SPECULAR 0x2
+#define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */
+#define DD_TRI_LIGHT_TWOSIDE 0x8
+#define DD_TRI_UNFILLED 0x10
+#define DD_TRI_SMOOTH 0x20
+#define DD_TRI_STIPPLE 0x40
+#define DD_TRI_OFFSET 0x80
+#define DD_LINE_SMOOTH 0x100
+#define DD_LINE_STIPPLE 0x200
+#define DD_POINT_SMOOTH 0x400
+#define DD_POINT_ATTEN 0x800
+#define DD_TRI_TWOSTENCIL 0x1000
+/*@}*/
+
+
+/**
+ * \name Define the state changes under which each of these bits might change
+ */
+/*@{*/
+#define _DD_NEW_FLATSHADE _NEW_LIGHT
+#define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG | _NEW_PROGRAM)
+#define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON
+#define _DD_NEW_TRI_LIGHT_TWOSIDE _NEW_LIGHT
+#define _DD_NEW_TRI_UNFILLED _NEW_POLYGON
+#define _DD_NEW_TRI_SMOOTH _NEW_POLYGON
+#define _DD_NEW_TRI_STIPPLE _NEW_POLYGON
+#define _DD_NEW_TRI_OFFSET _NEW_POLYGON
+#define _DD_NEW_LINE_SMOOTH _NEW_LINE
+#define _DD_NEW_LINE_STIPPLE _NEW_LINE
+#define _DD_NEW_LINE_WIDTH _NEW_LINE
+#define _DD_NEW_POINT_SMOOTH _NEW_POINT
+#define _DD_NEW_POINT_SIZE _NEW_POINT
+#define _DD_NEW_POINT_ATTEN _NEW_POINT
+/*@}*/
+
+
+/**
+ * Composite state flags
+ */
+/*@{*/
+#define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \
+ _NEW_TEXTURE | \
+ _NEW_POINT | \
+ _NEW_PROGRAM | \
+ _NEW_MODELVIEW)
+/*@}*/
+
+
+
+
+/* This has to be included here. */
+#include "dd.h"
+
+
+/**
+ * Display list flags.
+ * Strictly this is a tnl-private concept, but it doesn't seem
+ * worthwhile adding a tnl private structure just to hold this one bit
+ * of information:
+ */
+#define DLIST_DANGLING_REFS 0x1
+
+
+/** Opaque declaration of display list payload data type */
+union gl_dlist_node;
+
+
+/**
+ * Provide a location where information about a display list can be
+ * collected. Could be extended with driverPrivate structures,
+ * etc. in the future.
+ */
+struct gl_display_list
+{
+ GLuint Name;
+ GLbitfield Flags; /**< DLIST_x flags */
+ /** The dlist commands are in a linked list of nodes */
+ union gl_dlist_node *Head;
+};
+
+
+/**
+ * State used during display list compilation and execution.
+ */
+struct gl_dlist_state
+{
+ GLuint CallDepth; /**< Current recursion calling depth */
+
+ struct gl_display_list *CurrentList; /**< List currently being compiled */
+ union gl_dlist_node *CurrentBlock; /**< Pointer to current block of nodes */
+ GLuint CurrentPos; /**< Index into current block of nodes */
+
+ GLvertexformat ListVtxfmt;
+
+ GLubyte ActiveAttribSize[VERT_ATTRIB_MAX];
+ GLfloat CurrentAttrib[VERT_ATTRIB_MAX][4];
+
+ GLubyte ActiveMaterialSize[MAT_ATTRIB_MAX];
+ GLfloat CurrentMaterial[MAT_ATTRIB_MAX][4];
+
+ GLubyte ActiveIndex;
+ GLfloat CurrentIndex;
+
+ GLubyte ActiveEdgeFlag;
+ GLboolean CurrentEdgeFlag;
+
+ struct {
+ /* State known to have been set by the currently-compiling display
+ * list. Used to eliminate some redundant state changes.
+ */
+ GLenum ShadeModel;
+ } Current;
+};
+
+
+/**
+ * Enum for the OpenGL APIs we know about and may support.
+ */
+typedef enum
+{
+ API_OPENGL,
+ API_OPENGLES,
+ API_OPENGLES2
+} gl_api;
+
+
+/**
+ * Mesa rendering context.
+ *
+ * This is the central context data structure for Mesa. Almost all
+ * OpenGL state is contained in this structure.
+ * Think of this as a base class from which device drivers will derive
+ * sub classes.
+ *
+ * The struct gl_context typedef names this structure.
+ */
+struct gl_context
+{
+ /** State possibly shared with other contexts in the address space */
+ struct gl_shared_state *Shared;
+
+ /** \name API function pointer tables */
+ /*@{*/
+ gl_api API;
+ struct _glapi_table *Save; /**< Display list save functions */
+ struct _glapi_table *Exec; /**< Execute functions */
+ struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */
+ /*@}*/
+
+ struct gl_config Visual;
+ struct gl_framebuffer *DrawBuffer; /**< buffer for writing */
+ struct gl_framebuffer *ReadBuffer; /**< buffer for reading */
+ struct gl_framebuffer *WinSysDrawBuffer; /**< set with MakeCurrent */
+ struct gl_framebuffer *WinSysReadBuffer; /**< set with MakeCurrent */
+
+ /**
+ * Device driver function pointer table
+ */
+ struct dd_function_table Driver;
+
+ void *DriverCtx; /**< Points to device driver context/state */
+
+ /** Core/Driver constants */
+ struct gl_constants Const;
+
+ /** \name The various 4x4 matrix stacks */
+ /*@{*/
+ struct gl_matrix_stack ModelviewMatrixStack;
+ struct gl_matrix_stack ProjectionMatrixStack;
+ struct gl_matrix_stack TextureMatrixStack[MAX_TEXTURE_UNITS];
+ struct gl_matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES];
+ struct gl_matrix_stack *CurrentStack; /**< Points to one of the above stacks */
+ /*@}*/
+
+ /** Combined modelview and projection matrix */
+ GLmatrix _ModelProjectMatrix;
+
+ /** \name Display lists */
+ struct gl_dlist_state ListState;
+
+ GLboolean ExecuteFlag; /**< Execute GL commands? */
+ GLboolean CompileFlag; /**< Compile GL commands into display list? */
+
+ /** Extension information */
+ struct gl_extensions Extensions;
+
+ /** Version info */
+ GLuint VersionMajor, VersionMinor;
+ char *VersionString;
+
+ /** \name State attribute stack (for glPush/PopAttrib) */
+ /*@{*/
+ GLuint AttribStackDepth;
+ struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH];
+ /*@}*/
+
+ /** \name Renderer attribute groups
+ *
+ * We define a struct for each attribute group to make pushing and popping
+ * attributes easy. Also it's a good organization.
+ */
+ /*@{*/
+ struct gl_accum_attrib Accum; /**< Accum buffer attributes */
+ struct gl_colorbuffer_attrib Color; /**< Color buffer attributes */
+ struct gl_current_attrib Current; /**< Current attributes */
+ struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */
+ struct gl_eval_attrib Eval; /**< Eval attributes */
+ struct gl_fog_attrib Fog; /**< Fog attributes */
+ struct gl_hint_attrib Hint; /**< Hint attributes */
+ struct gl_light_attrib Light; /**< Light attributes */
+ struct gl_line_attrib Line; /**< Line attributes */
+ struct gl_list_attrib List; /**< List attributes */
+ struct gl_multisample_attrib Multisample;
+ struct gl_pixel_attrib Pixel; /**< Pixel attributes */
+ struct gl_point_attrib Point; /**< Point attributes */
+ struct gl_polygon_attrib Polygon; /**< Polygon attributes */
+ GLuint PolygonStipple[32]; /**< Polygon stipple */
+ struct gl_scissor_attrib Scissor; /**< Scissor attributes */
+ struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */
+ struct gl_texture_attrib Texture; /**< Texture attributes */
+ struct gl_transform_attrib Transform; /**< Transformation attributes */
+ struct gl_viewport_attrib Viewport; /**< Viewport attributes */
+ /*@}*/
+
+ /** \name Client attribute stack */
+ /*@{*/
+ GLuint ClientAttribStackDepth;
+ struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH];
+ /*@}*/
+
+ /** \name Client attribute groups */
+ /*@{*/
+ struct gl_array_attrib Array; /**< Vertex arrays */
+ struct gl_pixelstore_attrib Pack; /**< Pixel packing */
+ struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */
+ struct gl_pixelstore_attrib DefaultPacking; /**< Default params */
+ /*@}*/
+
+ /** \name Other assorted state (not pushed/popped on attribute stack) */
+ /*@{*/
+ struct gl_pixelmaps PixelMaps;
+
+ struct gl_evaluators EvalMap; /**< All evaluators */
+ struct gl_feedback Feedback; /**< Feedback */
+ struct gl_selection Select; /**< Selection */
+
+ struct gl_program_state Program; /**< general program state */
+ struct gl_vertex_program_state VertexProgram;
+ struct gl_fragment_program_state FragmentProgram;
+ struct gl_geometry_program_state GeometryProgram;
+ struct gl_ati_fragment_shader_state ATIFragmentShader;
+
+ struct gl_shader_state Shader; /**< GLSL shader object state */
+ struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_TYPES];
+
+ struct gl_query_state Query; /**< occlusion, timer queries */
+
+ struct gl_transform_feedback TransformFeedback;
+
+ struct gl_buffer_object *CopyReadBuffer; /**< GL_ARB_copy_buffer */
+ struct gl_buffer_object *CopyWriteBuffer; /**< GL_ARB_copy_buffer */
+ /*@}*/
+
+ struct gl_meta_state *Meta; /**< for "meta" operations */
+
+ /* GL_EXT_framebuffer_object */
+ struct gl_renderbuffer *CurrentRenderbuffer;
+
+ GLenum ErrorValue; /**< Last error code */
+
+ /**
+ * Recognize and silence repeated error debug messages in buggy apps.
+ */
+ const char *ErrorDebugFmtString;
+ GLuint ErrorDebugCount;
+
+ GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
+ GLbitfield NewState; /**< bitwise-or of _NEW_* flags */
+
+ GLboolean ViewportInitialized; /**< has viewport size been initialized? */
+
+ GLbitfield varying_vp_inputs; /**< mask of VERT_BIT_* flags */
+
+ /** \name Derived state */
+ /*@{*/
+ /** Bitwise-or of DD_* flags. Note that this bitfield may be used before
+ * state validation so they need to always be current.
+ */
+ GLbitfield _TriangleCaps;
+ GLbitfield _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */
+ GLfloat _EyeZDir[3];
+ GLfloat _ModelViewInvScale;
+ GLboolean _NeedEyeCoords;
+ GLboolean _ForceEyeCoords;
+
+ GLuint TextureStateTimestamp; /**< detect changes to shared state */
+
+ struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */
+ struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */
+ /**@}*/
+
+ struct gl_list_extensions *ListExt; /**< driver dlist extensions */
+
+ /** \name For debugging/development only */
+ /*@{*/
+ GLboolean FirstTimeCurrent;
+ /*@}*/
+
+ /** software compression/decompression supported or not */
+ GLboolean Mesa_DXTn;
+
+ GLboolean TextureFormatSupported[MESA_FORMAT_COUNT];
+
+ /**
+ * Use dp4 (rather than mul/mad) instructions for position
+ * transformation?
+ */
+ GLboolean mvp_with_dp4;
+
+ /**
+ * \name Hooks for module contexts.
+ *
+ * These will eventually live in the driver or elsewhere.
+ */
+ /*@{*/
+ void *swrast_context;
+ void *swsetup_context;
+ void *swtnl_context;
+ void *swtnl_im;
+ struct st_context *st;
+ void *aelt_context;
+ /*@}*/
+};
+
+
+#ifdef DEBUG
+extern int MESA_VERBOSE;
+extern int MESA_DEBUG_FLAGS;
+# define MESA_FUNCTION __FUNCTION__
+#else
+# define MESA_VERBOSE 0
+# define MESA_DEBUG_FLAGS 0
+# define MESA_FUNCTION "a function"
+# ifndef NDEBUG
+# define NDEBUG
+# endif
+#endif
+
+
+/** The MESA_VERBOSE var is a bitmask of these flags */
+enum _verbose
+{
+ VERBOSE_VARRAY = 0x0001,
+ VERBOSE_TEXTURE = 0x0002,
+ VERBOSE_MATERIAL = 0x0004,
+ VERBOSE_PIPELINE = 0x0008,
+ VERBOSE_DRIVER = 0x0010,
+ VERBOSE_STATE = 0x0020,
+ VERBOSE_API = 0x0040,
+ VERBOSE_DISPLAY_LIST = 0x0100,
+ VERBOSE_LIGHTING = 0x0200,
+ VERBOSE_PRIMS = 0x0400,
+ VERBOSE_VERTS = 0x0800,
+ VERBOSE_DISASSEM = 0x1000,
+ VERBOSE_DRAW = 0x2000,
+ VERBOSE_SWAPBUFFERS = 0x4000
+};
+
+
+/** The MESA_DEBUG_FLAGS var is a bitmask of these flags */
+enum _debug
+{
+ DEBUG_ALWAYS_FLUSH = 0x1
+};
+
+
+
+#endif /* MTYPES_H */
diff --git a/mesalib/src/mesa/main/pixel.c b/mesalib/src/mesa/main/pixel.c index da99c9b6f..5a14eb2d4 100644 --- a/mesalib/src/mesa/main/pixel.c +++ b/mesalib/src/mesa/main/pixel.c @@ -1,699 +1,699 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file pixel.c - * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer) - */ - -#include "glheader.h" -#include "bufferobj.h" -#include "colormac.h" -#include "context.h" -#include "macros.h" -#include "mfeatures.h" -#include "pixel.h" -#include "pbo.h" -#include "mtypes.h" -#include "main/dispatch.h" - - -#if FEATURE_pixel_transfer - - -/**********************************************************************/ -/***** glPixelZoom *****/ -/**********************************************************************/ - -static void GLAPIENTRY -_mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor ) -{ - GET_CURRENT_CONTEXT(ctx); - - if (ctx->Pixel.ZoomX == xfactor && - ctx->Pixel.ZoomY == yfactor) - return; - - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.ZoomX = xfactor; - ctx->Pixel.ZoomY = yfactor; -} - - - -/**********************************************************************/ -/***** glPixelMap *****/ -/**********************************************************************/ - -/** - * Return pointer to a pixelmap by name. - */ -static struct gl_pixelmap * -get_pixelmap(struct gl_context *ctx, GLenum map) -{ - switch (map) { - case GL_PIXEL_MAP_I_TO_I: - return &ctx->PixelMaps.ItoI; - case GL_PIXEL_MAP_S_TO_S: - return &ctx->PixelMaps.StoS; - case GL_PIXEL_MAP_I_TO_R: - return &ctx->PixelMaps.ItoR; - case GL_PIXEL_MAP_I_TO_G: - return &ctx->PixelMaps.ItoG; - case GL_PIXEL_MAP_I_TO_B: - return &ctx->PixelMaps.ItoB; - case GL_PIXEL_MAP_I_TO_A: - return &ctx->PixelMaps.ItoA; - case GL_PIXEL_MAP_R_TO_R: - return &ctx->PixelMaps.RtoR; - case GL_PIXEL_MAP_G_TO_G: - return &ctx->PixelMaps.GtoG; - case GL_PIXEL_MAP_B_TO_B: - return &ctx->PixelMaps.BtoB; - case GL_PIXEL_MAP_A_TO_A: - return &ctx->PixelMaps.AtoA; - default: - return NULL; - } -} - - -/** - * Helper routine used by the other _mesa_PixelMap() functions. - */ -static void -store_pixelmap(struct gl_context *ctx, GLenum map, GLsizei mapsize, - const GLfloat *values) -{ - GLint i; - struct gl_pixelmap *pm = get_pixelmap(ctx, map); - if (!pm) { - _mesa_error(ctx, GL_INVALID_ENUM, "glPixelMap(map)"); - return; - } - - switch (map) { - case GL_PIXEL_MAP_S_TO_S: - /* special case */ - ctx->PixelMaps.StoS.Size = mapsize; - for (i = 0; i < mapsize; i++) { - ctx->PixelMaps.StoS.Map[i] = (GLfloat)IROUND(values[i]); - } - break; - case GL_PIXEL_MAP_I_TO_I: - /* special case */ - ctx->PixelMaps.ItoI.Size = mapsize; - for (i = 0; i < mapsize; i++) { - ctx->PixelMaps.ItoI.Map[i] = values[i]; - } - break; - default: - /* general case */ - pm->Size = mapsize; - for (i = 0; i < mapsize; i++) { - GLfloat val = CLAMP(values[i], 0.0F, 1.0F); - pm->Map[i] = val; - pm->Map8[i] = (GLint) (val * 255.0F); - } - } -} - - -/** - * Convenience wrapper for _mesa_validate_pbo_access() for gl[Get]PixelMap(). - */ -static GLboolean -validate_pbo_access(struct gl_context *ctx, struct gl_pixelstore_attrib *pack, - GLsizei mapsize, GLenum format, GLenum type, - const GLvoid *ptr) -{ - GLboolean ok; - - /* Note, need to use DefaultPacking and Unpack's buffer object */ - _mesa_reference_buffer_object(ctx, - &ctx->DefaultPacking.BufferObj, - pack->BufferObj); - - ok = _mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1, - format, type, ptr); - - /* restore */ - _mesa_reference_buffer_object(ctx, - &ctx->DefaultPacking.BufferObj, - ctx->Shared->NullBufferObj); - - if (!ok) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glPixelMap(invalid PBO access)"); - } - return ok; -} - - -static void GLAPIENTRY -_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - /* XXX someday, test against ctx->Const.MaxPixelMapTableSize */ - if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); - return; - } - - if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { - /* test that mapsize is a power of two */ - if (!_mesa_is_pow_two(mapsize)) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); - return; - } - } - - FLUSH_VERTICES(ctx, _NEW_PIXEL); - - if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize, - GL_INTENSITY, GL_FLOAT, values)) { - return; - } - - values = (const GLfloat *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glPixelMapfv(PBO is mapped)"); - } - return; - } - - store_pixelmap(ctx, map, mapsize, values); - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); -} - - -static void GLAPIENTRY -_mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values ) -{ - GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); - return; - } - - if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { - /* test that mapsize is a power of two */ - if (!_mesa_is_pow_two(mapsize)) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); - return; - } - } - - FLUSH_VERTICES(ctx, _NEW_PIXEL); - - if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize, - GL_INTENSITY, GL_UNSIGNED_INT, values)) { - return; - } - - values = (const GLuint *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glPixelMapuiv(PBO is mapped)"); - } - return; - } - - /* convert to floats */ - if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { - GLint i; - for (i = 0; i < mapsize; i++) { - fvalues[i] = (GLfloat) values[i]; - } - } - else { - GLint i; - for (i = 0; i < mapsize; i++) { - fvalues[i] = UINT_TO_FLOAT( values[i] ); - } - } - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); - - store_pixelmap(ctx, map, mapsize, fvalues); -} - - -static void GLAPIENTRY -_mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values ) -{ - GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapusv(mapsize)" ); - return; - } - - if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { - /* test that mapsize is a power of two */ - if (!_mesa_is_pow_two(mapsize)) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); - return; - } - } - - FLUSH_VERTICES(ctx, _NEW_PIXEL); - - if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize, - GL_INTENSITY, GL_UNSIGNED_SHORT, values)) { - return; - } - - values = (const GLushort *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glPixelMapusv(PBO is mapped)"); - } - return; - } - - /* convert to floats */ - if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { - GLint i; - for (i = 0; i < mapsize; i++) { - fvalues[i] = (GLfloat) values[i]; - } - } - else { - GLint i; - for (i = 0; i < mapsize; i++) { - fvalues[i] = USHORT_TO_FLOAT( values[i] ); - } - } - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); - - store_pixelmap(ctx, map, mapsize, fvalues); -} - - -static void GLAPIENTRY -_mesa_GetPixelMapfv( GLenum map, GLfloat *values ) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint mapsize, i; - const struct gl_pixelmap *pm; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - pm = get_pixelmap(ctx, map); - if (!pm) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapfv(map)"); - return; - } - - mapsize = pm->Size; - - if (!validate_pbo_access(ctx, &ctx->Pack, mapsize, - GL_INTENSITY, GL_FLOAT, values)) { - return; - } - - values = (GLfloat *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetPixelMapfv(PBO is mapped)"); - } - return; - } - - if (map == GL_PIXEL_MAP_S_TO_S) { - /* special case */ - for (i = 0; i < mapsize; i++) { - values[i] = (GLfloat) ctx->PixelMaps.StoS.Map[i]; - } - } - else { - memcpy(values, pm->Map, mapsize * sizeof(GLfloat)); - } - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - -static void GLAPIENTRY -_mesa_GetPixelMapuiv( GLenum map, GLuint *values ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint mapsize, i; - const struct gl_pixelmap *pm; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - pm = get_pixelmap(ctx, map); - if (!pm) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)"); - return; - } - mapsize = pm->Size; - - if (!validate_pbo_access(ctx, &ctx->Pack, mapsize, - GL_INTENSITY, GL_UNSIGNED_INT, values)) { - return; - } - - values = (GLuint *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetPixelMapuiv(PBO is mapped)"); - } - return; - } - - if (map == GL_PIXEL_MAP_S_TO_S) { - /* special case */ - memcpy(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint)); - } - else { - for (i = 0; i < mapsize; i++) { - values[i] = FLOAT_TO_UINT( pm->Map[i] ); - } - } - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - -static void GLAPIENTRY -_mesa_GetPixelMapusv( GLenum map, GLushort *values ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint mapsize, i; - const struct gl_pixelmap *pm; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - pm = get_pixelmap(ctx, map); - if (!pm) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapusv(map)"); - return; - } - mapsize = pm->Size; - - if (!validate_pbo_access(ctx, &ctx->Pack, mapsize, - GL_INTENSITY, GL_UNSIGNED_SHORT, values)) { - return; - } - - values = (GLushort *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values); - if (!values) { - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetPixelMapusv(PBO is mapped)"); - } - return; - } - - switch (map) { - /* special cases */ - case GL_PIXEL_MAP_I_TO_I: - for (i = 0; i < mapsize; i++) { - values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.); - } - break; - case GL_PIXEL_MAP_S_TO_S: - for (i = 0; i < mapsize; i++) { - values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.); - } - break; - default: - for (i = 0; i < mapsize; i++) { - CLAMPED_FLOAT_TO_USHORT(values[i], pm->Map[i] ); - } - } - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - - -/**********************************************************************/ -/***** glPixelTransfer *****/ -/**********************************************************************/ - - -/* - * Implements glPixelTransfer[fi] whether called immediately or from a - * display list. - */ -static void GLAPIENTRY -_mesa_PixelTransferf( GLenum pname, GLfloat param ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (pname) { - case GL_MAP_COLOR: - if (ctx->Pixel.MapColorFlag == (param ? GL_TRUE : GL_FALSE)) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.MapColorFlag = param ? GL_TRUE : GL_FALSE; - break; - case GL_MAP_STENCIL: - if (ctx->Pixel.MapStencilFlag == (param ? GL_TRUE : GL_FALSE)) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.MapStencilFlag = param ? GL_TRUE : GL_FALSE; - break; - case GL_INDEX_SHIFT: - if (ctx->Pixel.IndexShift == (GLint) param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.IndexShift = (GLint) param; - break; - case GL_INDEX_OFFSET: - if (ctx->Pixel.IndexOffset == (GLint) param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.IndexOffset = (GLint) param; - break; - case GL_RED_SCALE: - if (ctx->Pixel.RedScale == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.RedScale = param; - break; - case GL_RED_BIAS: - if (ctx->Pixel.RedBias == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.RedBias = param; - break; - case GL_GREEN_SCALE: - if (ctx->Pixel.GreenScale == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.GreenScale = param; - break; - case GL_GREEN_BIAS: - if (ctx->Pixel.GreenBias == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.GreenBias = param; - break; - case GL_BLUE_SCALE: - if (ctx->Pixel.BlueScale == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.BlueScale = param; - break; - case GL_BLUE_BIAS: - if (ctx->Pixel.BlueBias == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.BlueBias = param; - break; - case GL_ALPHA_SCALE: - if (ctx->Pixel.AlphaScale == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.AlphaScale = param; - break; - case GL_ALPHA_BIAS: - if (ctx->Pixel.AlphaBias == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.AlphaBias = param; - break; - case GL_DEPTH_SCALE: - if (ctx->Pixel.DepthScale == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.DepthScale = param; - break; - case GL_DEPTH_BIAS: - if (ctx->Pixel.DepthBias == param) - return; - FLUSH_VERTICES(ctx, _NEW_PIXEL); - ctx->Pixel.DepthBias = param; - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPixelTransfer(pname)" ); - return; - } -} - - -static void GLAPIENTRY -_mesa_PixelTransferi( GLenum pname, GLint param ) -{ - _mesa_PixelTransferf( pname, (GLfloat) param ); -} - - - -/**********************************************************************/ -/***** State Management *****/ -/**********************************************************************/ - -/* - * Return a bitmask of IMAGE_*_BIT flags which to indicate which - * pixel transfer operations are enabled. - */ -static void -update_image_transfer_state(struct gl_context *ctx) -{ - GLuint mask = 0; - - if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F || - ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F || - ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F || - ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F) - mask |= IMAGE_SCALE_BIAS_BIT; - - if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) - mask |= IMAGE_SHIFT_OFFSET_BIT; - - if (ctx->Pixel.MapColorFlag) - mask |= IMAGE_MAP_COLOR_BIT; - - ctx->_ImageTransferState = mask; -} - - -/** - * Update mesa pixel transfer derived state. - */ -void _mesa_update_pixel( struct gl_context *ctx, GLuint new_state ) -{ - if (new_state & _NEW_PIXEL) - update_image_transfer_state(ctx); -} - - -void -_mesa_init_pixel_dispatch(struct _glapi_table *disp) -{ - SET_GetPixelMapfv(disp, _mesa_GetPixelMapfv); - SET_GetPixelMapuiv(disp, _mesa_GetPixelMapuiv); - SET_GetPixelMapusv(disp, _mesa_GetPixelMapusv); - SET_PixelMapfv(disp, _mesa_PixelMapfv); - SET_PixelMapuiv(disp, _mesa_PixelMapuiv); - SET_PixelMapusv(disp, _mesa_PixelMapusv); - SET_PixelTransferf(disp, _mesa_PixelTransferf); - SET_PixelTransferi(disp, _mesa_PixelTransferi); - SET_PixelZoom(disp, _mesa_PixelZoom); -} - - -#endif /* FEATURE_pixel_transfer */ - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - -static void -init_pixelmap(struct gl_pixelmap *map) -{ - map->Size = 1; - map->Map[0] = 0.0; - map->Map8[0] = 0; -} - - -/** - * Initialize the context's PIXEL attribute group. - */ -void -_mesa_init_pixel( struct gl_context *ctx ) -{ - /* Pixel group */ - ctx->Pixel.RedBias = 0.0; - ctx->Pixel.RedScale = 1.0; - ctx->Pixel.GreenBias = 0.0; - ctx->Pixel.GreenScale = 1.0; - ctx->Pixel.BlueBias = 0.0; - ctx->Pixel.BlueScale = 1.0; - ctx->Pixel.AlphaBias = 0.0; - ctx->Pixel.AlphaScale = 1.0; - ctx->Pixel.DepthBias = 0.0; - ctx->Pixel.DepthScale = 1.0; - ctx->Pixel.IndexOffset = 0; - ctx->Pixel.IndexShift = 0; - ctx->Pixel.ZoomX = 1.0; - ctx->Pixel.ZoomY = 1.0; - ctx->Pixel.MapColorFlag = GL_FALSE; - ctx->Pixel.MapStencilFlag = GL_FALSE; - init_pixelmap(&ctx->PixelMaps.StoS); - init_pixelmap(&ctx->PixelMaps.ItoI); - init_pixelmap(&ctx->PixelMaps.ItoR); - init_pixelmap(&ctx->PixelMaps.ItoG); - init_pixelmap(&ctx->PixelMaps.ItoB); - init_pixelmap(&ctx->PixelMaps.ItoA); - init_pixelmap(&ctx->PixelMaps.RtoR); - init_pixelmap(&ctx->PixelMaps.GtoG); - init_pixelmap(&ctx->PixelMaps.BtoB); - init_pixelmap(&ctx->PixelMaps.AtoA); - - if (ctx->Visual.doubleBufferMode) { - ctx->Pixel.ReadBuffer = GL_BACK; - } - else { - ctx->Pixel.ReadBuffer = GL_FRONT; - } - - /* Miscellaneous */ - ctx->_ImageTransferState = 0; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file pixel.c
+ * Pixel transfer functions (glPixelZoom, glPixelMap, glPixelTransfer)
+ */
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "colormac.h"
+#include "context.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "pixel.h"
+#include "pbo.h"
+#include "mtypes.h"
+#include "main/dispatch.h"
+
+
+#if FEATURE_pixel_transfer
+
+
+/**********************************************************************/
+/***** glPixelZoom *****/
+/**********************************************************************/
+
+static void GLAPIENTRY
+_mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (ctx->Pixel.ZoomX == xfactor &&
+ ctx->Pixel.ZoomY == yfactor)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.ZoomX = xfactor;
+ ctx->Pixel.ZoomY = yfactor;
+}
+
+
+
+/**********************************************************************/
+/***** glPixelMap *****/
+/**********************************************************************/
+
+/**
+ * Return pointer to a pixelmap by name.
+ */
+static struct gl_pixelmap *
+get_pixelmap(struct gl_context *ctx, GLenum map)
+{
+ switch (map) {
+ case GL_PIXEL_MAP_I_TO_I:
+ return &ctx->PixelMaps.ItoI;
+ case GL_PIXEL_MAP_S_TO_S:
+ return &ctx->PixelMaps.StoS;
+ case GL_PIXEL_MAP_I_TO_R:
+ return &ctx->PixelMaps.ItoR;
+ case GL_PIXEL_MAP_I_TO_G:
+ return &ctx->PixelMaps.ItoG;
+ case GL_PIXEL_MAP_I_TO_B:
+ return &ctx->PixelMaps.ItoB;
+ case GL_PIXEL_MAP_I_TO_A:
+ return &ctx->PixelMaps.ItoA;
+ case GL_PIXEL_MAP_R_TO_R:
+ return &ctx->PixelMaps.RtoR;
+ case GL_PIXEL_MAP_G_TO_G:
+ return &ctx->PixelMaps.GtoG;
+ case GL_PIXEL_MAP_B_TO_B:
+ return &ctx->PixelMaps.BtoB;
+ case GL_PIXEL_MAP_A_TO_A:
+ return &ctx->PixelMaps.AtoA;
+ default:
+ return NULL;
+ }
+}
+
+
+/**
+ * Helper routine used by the other _mesa_PixelMap() functions.
+ */
+static void
+store_pixelmap(struct gl_context *ctx, GLenum map, GLsizei mapsize,
+ const GLfloat *values)
+{
+ GLint i;
+ struct gl_pixelmap *pm = get_pixelmap(ctx, map);
+ if (!pm) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glPixelMap(map)");
+ return;
+ }
+
+ switch (map) {
+ case GL_PIXEL_MAP_S_TO_S:
+ /* special case */
+ ctx->PixelMaps.StoS.Size = mapsize;
+ for (i = 0; i < mapsize; i++) {
+ ctx->PixelMaps.StoS.Map[i] = (GLfloat)IROUND(values[i]);
+ }
+ break;
+ case GL_PIXEL_MAP_I_TO_I:
+ /* special case */
+ ctx->PixelMaps.ItoI.Size = mapsize;
+ for (i = 0; i < mapsize; i++) {
+ ctx->PixelMaps.ItoI.Map[i] = values[i];
+ }
+ break;
+ default:
+ /* general case */
+ pm->Size = mapsize;
+ for (i = 0; i < mapsize; i++) {
+ GLfloat val = CLAMP(values[i], 0.0F, 1.0F);
+ pm->Map[i] = val;
+ pm->Map8[i] = (GLint) (val * 255.0F);
+ }
+ }
+}
+
+
+/**
+ * Convenience wrapper for _mesa_validate_pbo_access() for gl[Get]PixelMap().
+ */
+static GLboolean
+validate_pbo_access(struct gl_context *ctx, struct gl_pixelstore_attrib *pack,
+ GLsizei mapsize, GLenum format, GLenum type,
+ const GLvoid *ptr)
+{
+ GLboolean ok;
+
+ /* Note, need to use DefaultPacking and Unpack's buffer object */
+ _mesa_reference_buffer_object(ctx,
+ &ctx->DefaultPacking.BufferObj,
+ pack->BufferObj);
+
+ ok = _mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
+ format, type, ptr);
+
+ /* restore */
+ _mesa_reference_buffer_object(ctx,
+ &ctx->DefaultPacking.BufferObj,
+ ctx->Shared->NullBufferObj);
+
+ if (!ok) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMap(invalid PBO access)");
+ }
+ return ok;
+}
+
+
+static void GLAPIENTRY
+_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ /* XXX someday, test against ctx->Const.MaxPixelMapTableSize */
+ if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
+ return;
+ }
+
+ if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
+ /* test that mapsize is a power of two */
+ if (!_mesa_is_pow_two(mapsize)) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
+ return;
+ }
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+
+ if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize,
+ GL_INTENSITY, GL_FLOAT, values)) {
+ return;
+ }
+
+ values = (const GLfloat *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapfv(PBO is mapped)");
+ }
+ return;
+ }
+
+ store_pixelmap(ctx, map, mapsize, values);
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+}
+
+
+static void GLAPIENTRY
+_mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
+{
+ GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
+ return;
+ }
+
+ if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
+ /* test that mapsize is a power of two */
+ if (!_mesa_is_pow_two(mapsize)) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
+ return;
+ }
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+
+ if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize,
+ GL_INTENSITY, GL_UNSIGNED_INT, values)) {
+ return;
+ }
+
+ values = (const GLuint *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapuiv(PBO is mapped)");
+ }
+ return;
+ }
+
+ /* convert to floats */
+ if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
+ fvalues[i] = (GLfloat) values[i];
+ }
+ }
+ else {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
+ fvalues[i] = UINT_TO_FLOAT( values[i] );
+ }
+ }
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+
+ store_pixelmap(ctx, map, mapsize, fvalues);
+}
+
+
+static void GLAPIENTRY
+_mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
+{
+ GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapusv(mapsize)" );
+ return;
+ }
+
+ if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
+ /* test that mapsize is a power of two */
+ if (!_mesa_is_pow_two(mapsize)) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
+ return;
+ }
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+
+ if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize,
+ GL_INTENSITY, GL_UNSIGNED_SHORT, values)) {
+ return;
+ }
+
+ values = (const GLushort *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapusv(PBO is mapped)");
+ }
+ return;
+ }
+
+ /* convert to floats */
+ if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
+ fvalues[i] = (GLfloat) values[i];
+ }
+ }
+ else {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
+ fvalues[i] = USHORT_TO_FLOAT( values[i] );
+ }
+ }
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+
+ store_pixelmap(ctx, map, mapsize, fvalues);
+}
+
+
+static void GLAPIENTRY
+_mesa_GetPixelMapfv( GLenum map, GLfloat *values )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint mapsize, i;
+ const struct gl_pixelmap *pm;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ pm = get_pixelmap(ctx, map);
+ if (!pm) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapfv(map)");
+ return;
+ }
+
+ mapsize = pm->Size;
+
+ if (!validate_pbo_access(ctx, &ctx->Pack, mapsize,
+ GL_INTENSITY, GL_FLOAT, values)) {
+ return;
+ }
+
+ values = (GLfloat *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapfv(PBO is mapped)");
+ }
+ return;
+ }
+
+ if (map == GL_PIXEL_MAP_S_TO_S) {
+ /* special case */
+ for (i = 0; i < mapsize; i++) {
+ values[i] = (GLfloat) ctx->PixelMaps.StoS.Map[i];
+ }
+ }
+ else {
+ memcpy(values, pm->Map, mapsize * sizeof(GLfloat));
+ }
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+static void GLAPIENTRY
+_mesa_GetPixelMapuiv( GLenum map, GLuint *values )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint mapsize, i;
+ const struct gl_pixelmap *pm;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ pm = get_pixelmap(ctx, map);
+ if (!pm) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)");
+ return;
+ }
+ mapsize = pm->Size;
+
+ if (!validate_pbo_access(ctx, &ctx->Pack, mapsize,
+ GL_INTENSITY, GL_UNSIGNED_INT, values)) {
+ return;
+ }
+
+ values = (GLuint *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapuiv(PBO is mapped)");
+ }
+ return;
+ }
+
+ if (map == GL_PIXEL_MAP_S_TO_S) {
+ /* special case */
+ memcpy(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint));
+ }
+ else {
+ for (i = 0; i < mapsize; i++) {
+ values[i] = FLOAT_TO_UINT( pm->Map[i] );
+ }
+ }
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+static void GLAPIENTRY
+_mesa_GetPixelMapusv( GLenum map, GLushort *values )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint mapsize, i;
+ const struct gl_pixelmap *pm;
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ pm = get_pixelmap(ctx, map);
+ if (!pm) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapusv(map)");
+ return;
+ }
+ mapsize = pm->Size;
+
+ if (!validate_pbo_access(ctx, &ctx->Pack, mapsize,
+ GL_INTENSITY, GL_UNSIGNED_SHORT, values)) {
+ return;
+ }
+
+ values = (GLushort *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values);
+ if (!values) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapusv(PBO is mapped)");
+ }
+ return;
+ }
+
+ switch (map) {
+ /* special cases */
+ case GL_PIXEL_MAP_I_TO_I:
+ for (i = 0; i < mapsize; i++) {
+ values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.);
+ }
+ break;
+ case GL_PIXEL_MAP_S_TO_S:
+ for (i = 0; i < mapsize; i++) {
+ values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.);
+ }
+ break;
+ default:
+ for (i = 0; i < mapsize; i++) {
+ CLAMPED_FLOAT_TO_USHORT(values[i], pm->Map[i] );
+ }
+ }
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+
+/**********************************************************************/
+/***** glPixelTransfer *****/
+/**********************************************************************/
+
+
+/*
+ * Implements glPixelTransfer[fi] whether called immediately or from a
+ * display list.
+ */
+static void GLAPIENTRY
+_mesa_PixelTransferf( GLenum pname, GLfloat param )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ switch (pname) {
+ case GL_MAP_COLOR:
+ if (ctx->Pixel.MapColorFlag == (param ? GL_TRUE : GL_FALSE))
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.MapColorFlag = param ? GL_TRUE : GL_FALSE;
+ break;
+ case GL_MAP_STENCIL:
+ if (ctx->Pixel.MapStencilFlag == (param ? GL_TRUE : GL_FALSE))
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.MapStencilFlag = param ? GL_TRUE : GL_FALSE;
+ break;
+ case GL_INDEX_SHIFT:
+ if (ctx->Pixel.IndexShift == (GLint) param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.IndexShift = (GLint) param;
+ break;
+ case GL_INDEX_OFFSET:
+ if (ctx->Pixel.IndexOffset == (GLint) param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.IndexOffset = (GLint) param;
+ break;
+ case GL_RED_SCALE:
+ if (ctx->Pixel.RedScale == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.RedScale = param;
+ break;
+ case GL_RED_BIAS:
+ if (ctx->Pixel.RedBias == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.RedBias = param;
+ break;
+ case GL_GREEN_SCALE:
+ if (ctx->Pixel.GreenScale == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.GreenScale = param;
+ break;
+ case GL_GREEN_BIAS:
+ if (ctx->Pixel.GreenBias == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.GreenBias = param;
+ break;
+ case GL_BLUE_SCALE:
+ if (ctx->Pixel.BlueScale == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.BlueScale = param;
+ break;
+ case GL_BLUE_BIAS:
+ if (ctx->Pixel.BlueBias == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.BlueBias = param;
+ break;
+ case GL_ALPHA_SCALE:
+ if (ctx->Pixel.AlphaScale == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.AlphaScale = param;
+ break;
+ case GL_ALPHA_BIAS:
+ if (ctx->Pixel.AlphaBias == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.AlphaBias = param;
+ break;
+ case GL_DEPTH_SCALE:
+ if (ctx->Pixel.DepthScale == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.DepthScale = param;
+ break;
+ case GL_DEPTH_BIAS:
+ if (ctx->Pixel.DepthBias == param)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_PIXEL);
+ ctx->Pixel.DepthBias = param;
+ break;
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glPixelTransfer(pname)" );
+ return;
+ }
+}
+
+
+static void GLAPIENTRY
+_mesa_PixelTransferi( GLenum pname, GLint param )
+{
+ _mesa_PixelTransferf( pname, (GLfloat) param );
+}
+
+
+
+/**********************************************************************/
+/***** State Management *****/
+/**********************************************************************/
+
+/*
+ * Return a bitmask of IMAGE_*_BIT flags which to indicate which
+ * pixel transfer operations are enabled.
+ */
+static void
+update_image_transfer_state(struct gl_context *ctx)
+{
+ GLuint mask = 0;
+
+ if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F ||
+ ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||
+ ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F ||
+ ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)
+ mask |= IMAGE_SCALE_BIAS_BIT;
+
+ if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)
+ mask |= IMAGE_SHIFT_OFFSET_BIT;
+
+ if (ctx->Pixel.MapColorFlag)
+ mask |= IMAGE_MAP_COLOR_BIT;
+
+ ctx->_ImageTransferState = mask;
+}
+
+
+/**
+ * Update mesa pixel transfer derived state.
+ */
+void _mesa_update_pixel( struct gl_context *ctx, GLuint new_state )
+{
+ if (new_state & _NEW_PIXEL)
+ update_image_transfer_state(ctx);
+}
+
+
+void
+_mesa_init_pixel_dispatch(struct _glapi_table *disp)
+{
+ SET_GetPixelMapfv(disp, _mesa_GetPixelMapfv);
+ SET_GetPixelMapuiv(disp, _mesa_GetPixelMapuiv);
+ SET_GetPixelMapusv(disp, _mesa_GetPixelMapusv);
+ SET_PixelMapfv(disp, _mesa_PixelMapfv);
+ SET_PixelMapuiv(disp, _mesa_PixelMapuiv);
+ SET_PixelMapusv(disp, _mesa_PixelMapusv);
+ SET_PixelTransferf(disp, _mesa_PixelTransferf);
+ SET_PixelTransferi(disp, _mesa_PixelTransferi);
+ SET_PixelZoom(disp, _mesa_PixelZoom);
+}
+
+
+#endif /* FEATURE_pixel_transfer */
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+static void
+init_pixelmap(struct gl_pixelmap *map)
+{
+ map->Size = 1;
+ map->Map[0] = 0.0;
+ map->Map8[0] = 0;
+}
+
+
+/**
+ * Initialize the context's PIXEL attribute group.
+ */
+void
+_mesa_init_pixel( struct gl_context *ctx )
+{
+ /* Pixel group */
+ ctx->Pixel.RedBias = 0.0;
+ ctx->Pixel.RedScale = 1.0;
+ ctx->Pixel.GreenBias = 0.0;
+ ctx->Pixel.GreenScale = 1.0;
+ ctx->Pixel.BlueBias = 0.0;
+ ctx->Pixel.BlueScale = 1.0;
+ ctx->Pixel.AlphaBias = 0.0;
+ ctx->Pixel.AlphaScale = 1.0;
+ ctx->Pixel.DepthBias = 0.0;
+ ctx->Pixel.DepthScale = 1.0;
+ ctx->Pixel.IndexOffset = 0;
+ ctx->Pixel.IndexShift = 0;
+ ctx->Pixel.ZoomX = 1.0;
+ ctx->Pixel.ZoomY = 1.0;
+ ctx->Pixel.MapColorFlag = GL_FALSE;
+ ctx->Pixel.MapStencilFlag = GL_FALSE;
+ init_pixelmap(&ctx->PixelMaps.StoS);
+ init_pixelmap(&ctx->PixelMaps.ItoI);
+ init_pixelmap(&ctx->PixelMaps.ItoR);
+ init_pixelmap(&ctx->PixelMaps.ItoG);
+ init_pixelmap(&ctx->PixelMaps.ItoB);
+ init_pixelmap(&ctx->PixelMaps.ItoA);
+ init_pixelmap(&ctx->PixelMaps.RtoR);
+ init_pixelmap(&ctx->PixelMaps.GtoG);
+ init_pixelmap(&ctx->PixelMaps.BtoB);
+ init_pixelmap(&ctx->PixelMaps.AtoA);
+
+ if (ctx->Visual.doubleBufferMode) {
+ ctx->Pixel.ReadBuffer = GL_BACK;
+ }
+ else {
+ ctx->Pixel.ReadBuffer = GL_FRONT;
+ }
+
+ /* Miscellaneous */
+ ctx->_ImageTransferState = 0;
+}
diff --git a/mesalib/src/mesa/main/polygon.c b/mesalib/src/mesa/main/polygon.c index ff4232ecc..3ad375901 100644 --- a/mesalib/src/mesa/main/polygon.c +++ b/mesalib/src/mesa/main/polygon.c @@ -1,322 +1,322 @@ -/** - * \file polygon.c - * Polygon operations. - */ - -/* - * Mesa 3-D graphics library - * Version: 6.5.1 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "image.h" -#include "enums.h" -#include "pack.h" -#include "pbo.h" -#include "polygon.h" -#include "mtypes.h" - - -/** - * Specify whether to cull front- or back-facing facets. - * - * \param mode culling mode. - * - * \sa glCullFace(). - * - * Verifies the parameter and updates gl_polygon_attrib::CullFaceMode. On - * change, flushes the vertices and notifies the driver via - * the dd_function_table::CullFace callback. - */ -void GLAPIENTRY -_mesa_CullFace( GLenum mode ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode)); - - if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) { - _mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" ); - return; - } - - if (ctx->Polygon.CullFaceMode == mode) - return; - - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.CullFaceMode = mode; - - if (ctx->Driver.CullFace) - ctx->Driver.CullFace( ctx, mode ); -} - - -/** - * Define front- and back-facing - * - * \param mode orientation of front-facing polygons. - * - * \sa glFrontFace(). - * - * Verifies the parameter and updates gl_polygon_attrib::FrontFace. On change - * flushes the vertices and notifies the driver via - * the dd_function_table::FrontFace callback. - */ -void GLAPIENTRY -_mesa_FrontFace( GLenum mode ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode)); - - if (mode!=GL_CW && mode!=GL_CCW) { - _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" ); - return; - } - - if (ctx->Polygon.FrontFace == mode) - return; - - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.FrontFace = mode; - - ctx->Polygon._FrontBit = (GLboolean) (mode == GL_CW); - - if (ctx->Driver.FrontFace) - ctx->Driver.FrontFace( ctx, mode ); -} - - -/** - * Set the polygon rasterization mode. - * - * \param face the polygons which \p mode applies to. - * \param mode how polygons should be rasterized. - * - * \sa glPolygonMode(). - * - * Verifies the parameters and updates gl_polygon_attrib::FrontMode and - * gl_polygon_attrib::BackMode. On change flushes the vertices and notifies the - * driver via the dd_function_table::PolygonMode callback. - */ -void GLAPIENTRY -_mesa_PolygonMode( GLenum face, GLenum mode ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glPolygonMode %s %s\n", - _mesa_lookup_enum_by_nr(face), - _mesa_lookup_enum_by_nr(mode)); - - if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) { - _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" ); - return; - } - - switch (face) { - case GL_FRONT: - if (ctx->Polygon.FrontMode == mode) - return; - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.FrontMode = mode; - break; - case GL_FRONT_AND_BACK: - if (ctx->Polygon.FrontMode == mode && - ctx->Polygon.BackMode == mode) - return; - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.FrontMode = mode; - ctx->Polygon.BackMode = mode; - break; - case GL_BACK: - if (ctx->Polygon.BackMode == mode) - return; - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.BackMode = mode; - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" ); - return; - } - - if (ctx->Polygon.FrontMode == GL_FILL && ctx->Polygon.BackMode == GL_FILL) - ctx->_TriangleCaps &= ~DD_TRI_UNFILLED; - else - ctx->_TriangleCaps |= DD_TRI_UNFILLED; - - if (ctx->Driver.PolygonMode) - ctx->Driver.PolygonMode(ctx, face, mode); -} - -#if _HAVE_FULL_GL - - -/** - * This routine updates the ctx->Polygon.Stipple state. - * If we're getting the stipple data from a PBO, we map the buffer - * in order to access the data. - * In any case, we obey the current pixel unpacking parameters when fetching - * the stipple data. - * - * In the future, this routine should be used as a fallback, called via - * ctx->Driver.PolygonStipple(). We'll have to update all the DRI drivers - * too. - */ -void -_mesa_polygon_stipple(struct gl_context *ctx, const GLubyte *pattern) -{ - pattern = _mesa_map_validate_pbo_source(ctx, 2, - &ctx->Unpack, 32, 32, 1, - GL_COLOR_INDEX, GL_BITMAP, pattern, - "glPolygonStipple"); - if (!pattern) - return; - - _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack); - - _mesa_unmap_pbo_source(ctx, &ctx->Unpack); -} - - -/** - * Called by glPolygonStipple. - */ -void GLAPIENTRY -_mesa_PolygonStipple( const GLubyte *pattern ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glPolygonStipple\n"); - - FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE); - - _mesa_polygon_stipple(ctx, pattern); - - if (ctx->Driver.PolygonStipple) - ctx->Driver.PolygonStipple(ctx, pattern); -} - - -/** - * Called by glPolygonStipple. - */ -void GLAPIENTRY -_mesa_GetPolygonStipple( GLubyte *dest ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glGetPolygonStipple\n"); - - dest = _mesa_map_validate_pbo_dest(ctx, 2, - &ctx->Pack, 32, 32, 1, - GL_COLOR_INDEX, GL_BITMAP, dest, - "glGetPolygonStipple"); - if (!dest) - return; - - _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack); - - _mesa_unmap_pbo_dest(ctx, &ctx->Pack); -} - - -void GLAPIENTRY -_mesa_PolygonOffset( GLfloat factor, GLfloat units ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units); - - if (ctx->Polygon.OffsetFactor == factor && - ctx->Polygon.OffsetUnits == units) - return; - - FLUSH_VERTICES(ctx, _NEW_POLYGON); - ctx->Polygon.OffsetFactor = factor; - ctx->Polygon.OffsetUnits = units; - - if (ctx->Driver.PolygonOffset) - ctx->Driver.PolygonOffset( ctx, factor, units ); -} - - -void GLAPIENTRY -_mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias ) -{ - GET_CURRENT_CONTEXT(ctx); - /* XXX mult by DepthMaxF here??? */ - _mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF ); -} - -#endif - - -/**********************************************************************/ -/** \name Initialization */ -/*@{*/ - -/** - * Initialize the context polygon state. - * - * \param ctx GL context. - * - * Initializes __struct gl_contextRec::Polygon and __struct gl_contextRec::PolygonStipple - * attribute groups. - */ -void _mesa_init_polygon( struct gl_context * ctx ) -{ - /* Polygon group */ - ctx->Polygon.CullFlag = GL_FALSE; - ctx->Polygon.CullFaceMode = GL_BACK; - ctx->Polygon.FrontFace = GL_CCW; - ctx->Polygon._FrontBit = 0; - ctx->Polygon.FrontMode = GL_FILL; - ctx->Polygon.BackMode = GL_FILL; - ctx->Polygon.SmoothFlag = GL_FALSE; - ctx->Polygon.StippleFlag = GL_FALSE; - ctx->Polygon.OffsetFactor = 0.0F; - ctx->Polygon.OffsetUnits = 0.0F; - ctx->Polygon.OffsetPoint = GL_FALSE; - ctx->Polygon.OffsetLine = GL_FALSE; - ctx->Polygon.OffsetFill = GL_FALSE; - - - /* Polygon Stipple group */ - memset( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) ); -} - -/*@}*/ +/**
+ * \file polygon.c
+ * Polygon operations.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "image.h"
+#include "enums.h"
+#include "pack.h"
+#include "pbo.h"
+#include "polygon.h"
+#include "mtypes.h"
+
+
+/**
+ * Specify whether to cull front- or back-facing facets.
+ *
+ * \param mode culling mode.
+ *
+ * \sa glCullFace().
+ *
+ * Verifies the parameter and updates gl_polygon_attrib::CullFaceMode. On
+ * change, flushes the vertices and notifies the driver via
+ * the dd_function_table::CullFace callback.
+ */
+void GLAPIENTRY
+_mesa_CullFace( GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" );
+ return;
+ }
+
+ if (ctx->Polygon.CullFaceMode == mode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.CullFaceMode = mode;
+
+ if (ctx->Driver.CullFace)
+ ctx->Driver.CullFace( ctx, mode );
+}
+
+
+/**
+ * Define front- and back-facing
+ *
+ * \param mode orientation of front-facing polygons.
+ *
+ * \sa glFrontFace().
+ *
+ * Verifies the parameter and updates gl_polygon_attrib::FrontFace. On change
+ * flushes the vertices and notifies the driver via
+ * the dd_function_table::FrontFace callback.
+ */
+void GLAPIENTRY
+_mesa_FrontFace( GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_CW && mode!=GL_CCW) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
+ return;
+ }
+
+ if (ctx->Polygon.FrontFace == mode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontFace = mode;
+
+ ctx->Polygon._FrontBit = (GLboolean) (mode == GL_CW);
+
+ if (ctx->Driver.FrontFace)
+ ctx->Driver.FrontFace( ctx, mode );
+}
+
+
+/**
+ * Set the polygon rasterization mode.
+ *
+ * \param face the polygons which \p mode applies to.
+ * \param mode how polygons should be rasterized.
+ *
+ * \sa glPolygonMode().
+ *
+ * Verifies the parameters and updates gl_polygon_attrib::FrontMode and
+ * gl_polygon_attrib::BackMode. On change flushes the vertices and notifies the
+ * driver via the dd_function_table::PolygonMode callback.
+ */
+void GLAPIENTRY
+_mesa_PolygonMode( GLenum face, GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonMode %s %s\n",
+ _mesa_lookup_enum_by_nr(face),
+ _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
+ return;
+ }
+
+ switch (face) {
+ case GL_FRONT:
+ if (ctx->Polygon.FrontMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontMode = mode;
+ break;
+ case GL_FRONT_AND_BACK:
+ if (ctx->Polygon.FrontMode == mode &&
+ ctx->Polygon.BackMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontMode = mode;
+ ctx->Polygon.BackMode = mode;
+ break;
+ case GL_BACK:
+ if (ctx->Polygon.BackMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.BackMode = mode;
+ break;
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" );
+ return;
+ }
+
+ if (ctx->Polygon.FrontMode == GL_FILL && ctx->Polygon.BackMode == GL_FILL)
+ ctx->_TriangleCaps &= ~DD_TRI_UNFILLED;
+ else
+ ctx->_TriangleCaps |= DD_TRI_UNFILLED;
+
+ if (ctx->Driver.PolygonMode)
+ ctx->Driver.PolygonMode(ctx, face, mode);
+}
+
+#if _HAVE_FULL_GL
+
+
+/**
+ * This routine updates the ctx->Polygon.Stipple state.
+ * If we're getting the stipple data from a PBO, we map the buffer
+ * in order to access the data.
+ * In any case, we obey the current pixel unpacking parameters when fetching
+ * the stipple data.
+ *
+ * In the future, this routine should be used as a fallback, called via
+ * ctx->Driver.PolygonStipple(). We'll have to update all the DRI drivers
+ * too.
+ */
+void
+_mesa_polygon_stipple(struct gl_context *ctx, const GLubyte *pattern)
+{
+ pattern = _mesa_map_validate_pbo_source(ctx, 2,
+ &ctx->Unpack, 32, 32, 1,
+ GL_COLOR_INDEX, GL_BITMAP, pattern,
+ "glPolygonStipple");
+ if (!pattern)
+ return;
+
+ _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack);
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+}
+
+
+/**
+ * Called by glPolygonStipple.
+ */
+void GLAPIENTRY
+_mesa_PolygonStipple( const GLubyte *pattern )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonStipple\n");
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE);
+
+ _mesa_polygon_stipple(ctx, pattern);
+
+ if (ctx->Driver.PolygonStipple)
+ ctx->Driver.PolygonStipple(ctx, pattern);
+}
+
+
+/**
+ * Called by glPolygonStipple.
+ */
+void GLAPIENTRY
+_mesa_GetPolygonStipple( GLubyte *dest )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glGetPolygonStipple\n");
+
+ dest = _mesa_map_validate_pbo_dest(ctx, 2,
+ &ctx->Pack, 32, 32, 1,
+ GL_COLOR_INDEX, GL_BITMAP, dest,
+ "glGetPolygonStipple");
+ if (!dest)
+ return;
+
+ _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack);
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+void GLAPIENTRY
+_mesa_PolygonOffset( GLfloat factor, GLfloat units )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
+
+ if (ctx->Polygon.OffsetFactor == factor &&
+ ctx->Polygon.OffsetUnits == units)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.OffsetFactor = factor;
+ ctx->Polygon.OffsetUnits = units;
+
+ if (ctx->Driver.PolygonOffset)
+ ctx->Driver.PolygonOffset( ctx, factor, units );
+}
+
+
+void GLAPIENTRY
+_mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ /* XXX mult by DepthMaxF here??? */
+ _mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF );
+}
+
+#endif
+
+
+/**********************************************************************/
+/** \name Initialization */
+/*@{*/
+
+/**
+ * Initialize the context polygon state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __struct gl_contextRec::Polygon and __struct gl_contextRec::PolygonStipple
+ * attribute groups.
+ */
+void _mesa_init_polygon( struct gl_context * ctx )
+{
+ /* Polygon group */
+ ctx->Polygon.CullFlag = GL_FALSE;
+ ctx->Polygon.CullFaceMode = GL_BACK;
+ ctx->Polygon.FrontFace = GL_CCW;
+ ctx->Polygon._FrontBit = 0;
+ ctx->Polygon.FrontMode = GL_FILL;
+ ctx->Polygon.BackMode = GL_FILL;
+ ctx->Polygon.SmoothFlag = GL_FALSE;
+ ctx->Polygon.StippleFlag = GL_FALSE;
+ ctx->Polygon.OffsetFactor = 0.0F;
+ ctx->Polygon.OffsetUnits = 0.0F;
+ ctx->Polygon.OffsetPoint = GL_FALSE;
+ ctx->Polygon.OffsetLine = GL_FALSE;
+ ctx->Polygon.OffsetFill = GL_FALSE;
+
+
+ /* Polygon Stipple group */
+ memset( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) );
+}
+
+/*@}*/
diff --git a/mesalib/src/mesa/main/queryobj.c b/mesalib/src/mesa/main/queryobj.c index 25ec31fd4..c3c1aa170 100644 --- a/mesalib/src/mesa/main/queryobj.c +++ b/mesalib/src/mesa/main/queryobj.c @@ -44,7 +44,7 @@ * \param id - the new object's ID
* \return pointer to new query_object object or NULL if out of memory.
*/
-static struct gl_query_object *
+struct gl_query_object *
_mesa_new_query_object(struct gl_context *ctx, GLuint id)
{
struct gl_query_object *q = MALLOC_STRUCT(gl_query_object);
@@ -63,7 +63,7 @@ _mesa_new_query_object(struct gl_context *ctx, GLuint id) * Begin a query. Software driver fallback.
* Called via ctx->Driver.BeginQuery().
*/
-static void
+void
_mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q)
{
/* no-op */
@@ -74,7 +74,7 @@ _mesa_begin_query(struct gl_context *ctx, struct gl_query_object *q) * End a query. Software driver fallback.
* Called via ctx->Driver.EndQuery().
*/
-static void
+void
_mesa_end_query(struct gl_context *ctx, struct gl_query_object *q)
{
q->Ready = GL_TRUE;
@@ -85,7 +85,7 @@ _mesa_end_query(struct gl_context *ctx, struct gl_query_object *q) * Wait for query to complete. Software driver fallback.
* Called via ctx->Driver.WaitQuery().
*/
-static void
+void
_mesa_wait_query(struct gl_context *ctx, struct gl_query_object *q)
{
/* For software drivers, _mesa_end_query() should have completed the query.
@@ -113,7 +113,7 @@ _mesa_check_query(struct gl_context *ctx, struct gl_query_object *q) * Delete a query object. Called via ctx->Driver.DeleteQuery().
* Not removed from hash table here.
*/
-static void
+void
_mesa_delete_query(struct gl_context *ctx, struct gl_query_object *q)
{
free(q);
diff --git a/mesalib/src/mesa/main/state.c b/mesalib/src/mesa/main/state.c index 118ed1d28..70f8154e8 100644 --- a/mesalib/src/mesa/main/state.c +++ b/mesalib/src/mesa/main/state.c @@ -1,734 +1,734 @@ -/* - * Mesa 3-D graphics library - * Version: 7.3 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file state.c - * State management. - * - * This file manages recalculation of derived values in struct gl_context. - */ - - -#include "glheader.h" -#include "mtypes.h" -#include "context.h" -#include "debug.h" -#include "macros.h" -#include "ffvertex_prog.h" -#include "framebuffer.h" -#include "light.h" -#include "matrix.h" -#include "pixel.h" -#include "program/program.h" -#include "program/prog_parameter.h" -#include "state.h" -#include "stencil.h" -#include "texenvprogram.h" -#include "texobj.h" -#include "texstate.h" - - -static void -update_separate_specular(struct gl_context *ctx) -{ - if (_mesa_need_secondary_color(ctx)) - ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; - else - ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR; -} - - -/** - * Compute the index of the last array element that can be safely accessed - * in a vertex array. We can really only do this when the array lives in - * a VBO. - * The array->_MaxElement field will be updated. - * Later in glDrawArrays/Elements/etc we can do some bounds checking. - */ -static void -compute_max_element(struct gl_client_array *array) -{ - assert(array->Enabled); - if (array->BufferObj->Name) { - GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr; - GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size; - - if (offset < obj_size) { - array->_MaxElement = (obj_size - offset + - array->StrideB - - array->_ElementSize) / array->StrideB; - } else { - array->_MaxElement = 0; - } - } - else { - /* user-space array, no idea how big it is */ - array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */ - } -} - - -/** - * Helper for update_arrays(). - * \return min(current min, array->_MaxElement). - */ -static GLuint -update_min(GLuint min, struct gl_client_array *array) -{ - compute_max_element(array); - return MIN2(min, array->_MaxElement); -} - - -/** - * Update ctx->Array._MaxElement (the max legal index into all enabled arrays). - * Need to do this upon new array state or new buffer object state. - */ -static void -update_arrays( struct gl_context *ctx ) -{ - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - GLuint i, min = ~0; - - /* find min of _MaxElement values for all enabled arrays */ - - /* 0 */ - if (ctx->VertexProgram._Current - && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]); - } - else if (arrayObj->Vertex.Enabled) { - min = update_min(min, &arrayObj->Vertex); - } - - /* 1 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]); - } - /* no conventional vertex weight array */ - - /* 2 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]); - } - else if (arrayObj->Normal.Enabled) { - min = update_min(min, &arrayObj->Normal); - } - - /* 3 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]); - } - else if (arrayObj->Color.Enabled) { - min = update_min(min, &arrayObj->Color); - } - - /* 4 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]); - } - else if (arrayObj->SecondaryColor.Enabled) { - min = update_min(min, &arrayObj->SecondaryColor); - } - - /* 5 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]); - } - else if (arrayObj->FogCoord.Enabled) { - min = update_min(min, &arrayObj->FogCoord); - } - - /* 6 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]); - } - else if (arrayObj->Index.Enabled) { - min = update_min(min, &arrayObj->Index); - } - - /* 7 */ - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]); - } - - /* 8..15 */ - for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) { - if (ctx->VertexProgram._Enabled - && arrayObj->VertexAttrib[i].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[i]); - } - else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits - && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) { - min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]); - } - } - - /* 16..31 */ - if (ctx->VertexProgram._Current) { - for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) { - if (arrayObj->VertexAttrib[i].Enabled) { - min = update_min(min, &arrayObj->VertexAttrib[i]); - } - } - } - - if (arrayObj->EdgeFlag.Enabled) { - min = update_min(min, &arrayObj->EdgeFlag); - } - - /* _MaxElement is one past the last legal array element */ - arrayObj->_MaxElement = min; -} - - -/** - * Update the following fields: - * ctx->VertexProgram._Enabled - * ctx->FragmentProgram._Enabled - * ctx->ATIFragmentShader._Enabled - * This needs to be done before texture state validation. - */ -static void -update_program_enables(struct gl_context *ctx) -{ - /* These _Enabled flags indicate if the program is enabled AND valid. */ - ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled - && ctx->VertexProgram.Current->Base.Instructions; - ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled - && ctx->FragmentProgram.Current->Base.Instructions; - ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled - && ctx->ATIFragmentShader.Current->Instructions[0]; -} - - -/** - * Update vertex/fragment program state. In particular, update these fields: - * ctx->VertexProgram._Current - * ctx->VertexProgram._TnlProgram, - * These point to the highest priority enabled vertex/fragment program or are - * NULL if fixed-function processing is to be done. - * - * This function needs to be called after texture state validation in case - * we're generating a fragment program from fixed-function texture state. - * - * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex - * or fragment program is being used. - */ -static GLbitfield -update_program(struct gl_context *ctx) -{ - const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram; - const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram; - const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram; - const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current; - const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current; - const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current; - GLbitfield new_state = 0x0; - - /* - * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current - * pointers to the programs that should be used for rendering. If either - * is NULL, use fixed-function code paths. - * - * These programs may come from several sources. The priority is as - * follows: - * 1. OpenGL 2.0/ARB vertex/fragment shaders - * 2. ARB/NV vertex/fragment programs - * 3. Programs derived from fixed-function state. - * - * Note: it's possible for a vertex shader to get used with a fragment - * program (and vice versa) here, but in practice that shouldn't ever - * come up, or matter. - */ - - if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) { - /* Use shader programs */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - fsProg->FragmentProgram); - } - else if (ctx->FragmentProgram._Enabled) { - /* use user-defined vertex program */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - ctx->FragmentProgram.Current); - } - else if (ctx->FragmentProgram._MaintainTexEnvProgram) { - /* Use fragment program generated from fixed-function state. - */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, - _mesa_get_fixed_func_fragment_program(ctx)); - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, - ctx->FragmentProgram._Current); - } - else { - /* no fragment program */ - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); - } - - if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) { - /* Use shader programs */ - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, - gsProg->GeometryProgram); - } else { - /* no fragment program */ - _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL); - } - - /* Examine vertex program after fragment program as - * _mesa_get_fixed_func_vertex_program() needs to know active - * fragprog inputs. - */ - if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) { - /* Use shader programs */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - vsProg->VertexProgram); - } - else if (ctx->VertexProgram._Enabled) { - /* use user-defined vertex program */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - ctx->VertexProgram.Current); - } - else if (ctx->VertexProgram._MaintainTnlProgram) { - /* Use vertex program generated from fixed-function state. - */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - _mesa_get_fixed_func_vertex_program(ctx)); - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, - ctx->VertexProgram._Current); - } - else { - /* no vertex program */ - _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL); - } - - /* Let the driver know what's happening: - */ - if (ctx->FragmentProgram._Current != prevFP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, - (struct gl_program *) ctx->FragmentProgram._Current); - } - } - - if (ctx->GeometryProgram._Current != prevGP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM, - (struct gl_program *) ctx->GeometryProgram._Current); - } - } - - if (ctx->VertexProgram._Current != prevVP) { - new_state |= _NEW_PROGRAM; - if (ctx->Driver.BindProgram) { - ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, - (struct gl_program *) ctx->VertexProgram._Current); - } - } - - return new_state; -} - - -/** - * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0. - */ -static GLbitfield -update_program_constants(struct gl_context *ctx) -{ - GLbitfield new_state = 0x0; - - if (ctx->FragmentProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->FragmentProgram._Current->Base.Parameters; - if (params && params->StateFlags & ctx->NewState) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - if (ctx->GeometryProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->GeometryProgram._Current->Base.Parameters; - /*FIXME: StateFlags is always 0 because we have unnamed constant - * not state changes */ - if (params /*&& params->StateFlags & ctx->NewState*/) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - if (ctx->VertexProgram._Current) { - const struct gl_program_parameter_list *params = - ctx->VertexProgram._Current->Base.Parameters; - if (params && params->StateFlags & ctx->NewState) { - new_state |= _NEW_PROGRAM_CONSTANTS; - } - } - - return new_state; -} - - - - -static void -update_viewport_matrix(struct gl_context *ctx) -{ - const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF; - - ASSERT(depthMax > 0); - - /* Compute scale and bias values. This is really driver-specific - * and should be maintained elsewhere if at all. - * NOTE: RasterPos uses this. - */ - _math_matrix_viewport(&ctx->Viewport._WindowMap, - ctx->Viewport.X, ctx->Viewport.Y, - ctx->Viewport.Width, ctx->Viewport.Height, - ctx->Viewport.Near, ctx->Viewport.Far, - depthMax); -} - - -/** - * Update derived multisample state. - */ -static void -update_multisample(struct gl_context *ctx) -{ - ctx->Multisample._Enabled = GL_FALSE; - if (ctx->Multisample.Enabled && - ctx->DrawBuffer && - ctx->DrawBuffer->Visual.sampleBuffers) - ctx->Multisample._Enabled = GL_TRUE; -} - - -/** - * Update derived color/blend/logicop state. - */ -static void -update_color(struct gl_context *ctx) -{ - /* This is needed to support 1.1's RGB logic ops AND - * 1.0's blending logicops. - */ - ctx->Color._LogicOpEnabled = _mesa_rgba_logicop_enabled(ctx); -} - - -/* - * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET - * in ctx->_TriangleCaps if needed. - */ -static void -update_polygon(struct gl_context *ctx) -{ - ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET); - - if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) - ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; - - if ( ctx->Polygon.OffsetPoint - || ctx->Polygon.OffsetLine - || ctx->Polygon.OffsetFill) - ctx->_TriangleCaps |= DD_TRI_OFFSET; -} - - -/** - * Update the ctx->_TriangleCaps bitfield. - * XXX that bitfield should really go away someday! - * This function must be called after other update_*() functions since - * there are dependencies on some other derived values. - */ -#if 0 -static void -update_tricaps(struct gl_context *ctx, GLbitfield new_state) -{ - ctx->_TriangleCaps = 0; - - /* - * Points - */ - if (1/*new_state & _NEW_POINT*/) { - if (ctx->Point.SmoothFlag) - ctx->_TriangleCaps |= DD_POINT_SMOOTH; - if (ctx->Point._Attenuated) - ctx->_TriangleCaps |= DD_POINT_ATTEN; - } - - /* - * Lines - */ - if (1/*new_state & _NEW_LINE*/) { - if (ctx->Line.SmoothFlag) - ctx->_TriangleCaps |= DD_LINE_SMOOTH; - if (ctx->Line.StippleFlag) - ctx->_TriangleCaps |= DD_LINE_STIPPLE; - } - - /* - * Polygons - */ - if (1/*new_state & _NEW_POLYGON*/) { - if (ctx->Polygon.SmoothFlag) - ctx->_TriangleCaps |= DD_TRI_SMOOTH; - if (ctx->Polygon.StippleFlag) - ctx->_TriangleCaps |= DD_TRI_STIPPLE; - if (ctx->Polygon.FrontMode != GL_FILL - || ctx->Polygon.BackMode != GL_FILL) - ctx->_TriangleCaps |= DD_TRI_UNFILLED; - if (ctx->Polygon.CullFlag - && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) - ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; - if (ctx->Polygon.OffsetPoint || - ctx->Polygon.OffsetLine || - ctx->Polygon.OffsetFill) - ctx->_TriangleCaps |= DD_TRI_OFFSET; - } - - /* - * Lighting and shading - */ - if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) - ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; - if (ctx->Light.ShadeModel == GL_FLAT) - ctx->_TriangleCaps |= DD_FLATSHADE; - if (_mesa_need_secondary_color(ctx)) - ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR; - - /* - * Stencil - */ - if (ctx->Stencil._TestTwoSide) - ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL; -} -#endif - - -/** - * Compute derived GL state. - * If __struct gl_contextRec::NewState is non-zero then this function \b must - * be called before rendering anything. - * - * Calls dd_function_table::UpdateState to perform any internal state - * management necessary. - * - * \sa _mesa_update_modelview_project(), _mesa_update_texture(), - * _mesa_update_buffer_bounds(), - * _mesa_update_lighting() and _mesa_update_tnl_spaces(). - */ -void -_mesa_update_state_locked( struct gl_context *ctx ) -{ - GLbitfield new_state = ctx->NewState; - GLbitfield prog_flags = _NEW_PROGRAM; - GLbitfield new_prog_state = 0x0; - - if (new_state == _NEW_CURRENT_ATTRIB) - goto out; - - if (MESA_VERBOSE & VERBOSE_STATE) - _mesa_print_state("_mesa_update_state", new_state); - - /* Determine which state flags effect vertex/fragment program state */ - if (ctx->FragmentProgram._MaintainTexEnvProgram) { - prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG | - _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE | - _NEW_PROGRAM); - } - if (ctx->VertexProgram._MaintainTnlProgram) { - prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX | - _NEW_TRANSFORM | _NEW_POINT | - _NEW_FOG | _NEW_LIGHT | - _MESA_NEW_NEED_EYE_COORDS); - } - - /* - * Now update derived state info - */ - - if (new_state & prog_flags) - update_program_enables( ctx ); - - if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) - _mesa_update_modelview_project( ctx, new_state ); - - if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX)) - _mesa_update_texture( ctx, new_state ); - - if (new_state & _NEW_BUFFERS) - _mesa_update_framebuffer(ctx); - - if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT)) - _mesa_update_draw_buffer_bounds( ctx ); - - if (new_state & _NEW_POLYGON) - update_polygon( ctx ); - - if (new_state & _NEW_LIGHT) - _mesa_update_lighting( ctx ); - - if (new_state & (_NEW_STENCIL | _NEW_BUFFERS)) - _mesa_update_stencil( ctx ); - - if (new_state & _NEW_PIXEL) - _mesa_update_pixel( ctx, new_state ); - - if (new_state & _DD_NEW_SEPARATE_SPECULAR) - update_separate_specular( ctx ); - - if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT)) - update_viewport_matrix(ctx); - - if (new_state & _NEW_MULTISAMPLE) - update_multisample( ctx ); - - if (new_state & _NEW_COLOR) - update_color( ctx ); - -#if 0 - if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT - | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR)) - update_tricaps( ctx, new_state ); -#endif - - /* ctx->_NeedEyeCoords is now up to date. - * - * If the truth value of this variable has changed, update for the - * new lighting space and recompute the positions of lights and the - * normal transform. - * - * If the lighting space hasn't changed, may still need to recompute - * light positions & normal transforms for other reasons. - */ - if (new_state & _MESA_NEW_NEED_EYE_COORDS) - _mesa_update_tnl_spaces( ctx, new_state ); - - if (new_state & prog_flags) { - /* When we generate programs from fixed-function vertex/fragment state - * this call may generate/bind a new program. If so, we need to - * propogate the _NEW_PROGRAM flag to the driver. - */ - new_prog_state |= update_program( ctx ); - } - - if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT)) - update_arrays( ctx ); - - out: - new_prog_state |= update_program_constants(ctx); - - /* - * Give the driver a chance to act upon the new_state flags. - * The driver might plug in different span functions, for example. - * Also, this is where the driver can invalidate the state of any - * active modules (such as swrast_setup, swrast, tnl, etc). - * - * Set ctx->NewState to zero to avoid recursion if - * Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?) - */ - new_state = ctx->NewState | new_prog_state; - ctx->NewState = 0; - ctx->Driver.UpdateState(ctx, new_state); - ctx->Array.NewState = 0; - if (!ctx->Array.RebindArrays) - ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0; -} - - -/* This is the usual entrypoint for state updates: - */ -void -_mesa_update_state( struct gl_context *ctx ) -{ - _mesa_lock_context_textures(ctx); - _mesa_update_state_locked(ctx); - _mesa_unlock_context_textures(ctx); -} - - - - -/** - * Want to figure out which fragment program inputs are actually - * constant/current values from ctx->Current. These should be - * referenced as a tracked state variable rather than a fragment - * program input, to save the overhead of putting a constant value in - * every submitted vertex, transferring it to hardware, interpolating - * it across the triangle, etc... - * - * When there is a VP bound, just use vp->outputs. But when we're - * generating vp from fixed function state, basically want to - * calculate: - * - * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) | - * potential_vp_outputs ) - * - * Where potential_vp_outputs is calculated by looking at enabled - * texgen, etc. - * - * The generated fragment program should then only declare inputs that - * may vary or otherwise differ from the ctx->Current values. - * Otherwise, the fp should track them as state values instead. - */ -void -_mesa_set_varying_vp_inputs( struct gl_context *ctx, - GLbitfield varying_inputs ) -{ - if (ctx->varying_vp_inputs != varying_inputs) { - ctx->varying_vp_inputs = varying_inputs; - ctx->NewState |= _NEW_ARRAY; - /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/ - } -} - - -/** - * Used by drivers to tell core Mesa that the driver is going to - * install/ use its own vertex program. In particular, this will - * prevent generated fragment programs from using state vars instead - * of ordinary varyings/inputs. - */ -void -_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag) -{ - if (ctx->VertexProgram._Overriden != flag) { - ctx->VertexProgram._Overriden = flag; - - /* Set one of the bits which will trigger fragment program - * regeneration: - */ - ctx->NewState |= _NEW_PROGRAM; - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.3
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file state.c
+ * State management.
+ *
+ * This file manages recalculation of derived values in struct gl_context.
+ */
+
+
+#include "glheader.h"
+#include "mtypes.h"
+#include "context.h"
+#include "debug.h"
+#include "macros.h"
+#include "ffvertex_prog.h"
+#include "framebuffer.h"
+#include "light.h"
+#include "matrix.h"
+#include "pixel.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
+#include "state.h"
+#include "stencil.h"
+#include "texenvprogram.h"
+#include "texobj.h"
+#include "texstate.h"
+
+
+static void
+update_separate_specular(struct gl_context *ctx)
+{
+ if (_mesa_need_secondary_color(ctx))
+ ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
+ else
+ ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
+}
+
+
+/**
+ * Compute the index of the last array element that can be safely accessed
+ * in a vertex array. We can really only do this when the array lives in
+ * a VBO.
+ * The array->_MaxElement field will be updated.
+ * Later in glDrawArrays/Elements/etc we can do some bounds checking.
+ */
+static void
+compute_max_element(struct gl_client_array *array)
+{
+ assert(array->Enabled);
+ if (array->BufferObj->Name) {
+ GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;
+ GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size;
+
+ if (offset < obj_size) {
+ array->_MaxElement = (obj_size - offset +
+ array->StrideB -
+ array->_ElementSize) / array->StrideB;
+ } else {
+ array->_MaxElement = 0;
+ }
+ }
+ else {
+ /* user-space array, no idea how big it is */
+ array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
+ }
+}
+
+
+/**
+ * Helper for update_arrays().
+ * \return min(current min, array->_MaxElement).
+ */
+static GLuint
+update_min(GLuint min, struct gl_client_array *array)
+{
+ compute_max_element(array);
+ return MIN2(min, array->_MaxElement);
+}
+
+
+/**
+ * Update ctx->Array._MaxElement (the max legal index into all enabled arrays).
+ * Need to do this upon new array state or new buffer object state.
+ */
+static void
+update_arrays( struct gl_context *ctx )
+{
+ struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
+ GLuint i, min = ~0;
+
+ /* find min of _MaxElement values for all enabled arrays */
+
+ /* 0 */
+ if (ctx->VertexProgram._Current
+ && arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_POS]);
+ }
+ else if (arrayObj->Vertex.Enabled) {
+ min = update_min(min, &arrayObj->Vertex);
+ }
+
+ /* 1 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]);
+ }
+ /* no conventional vertex weight array */
+
+ /* 2 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]);
+ }
+ else if (arrayObj->Normal.Enabled) {
+ min = update_min(min, &arrayObj->Normal);
+ }
+
+ /* 3 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]);
+ }
+ else if (arrayObj->Color.Enabled) {
+ min = update_min(min, &arrayObj->Color);
+ }
+
+ /* 4 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]);
+ }
+ else if (arrayObj->SecondaryColor.Enabled) {
+ min = update_min(min, &arrayObj->SecondaryColor);
+ }
+
+ /* 5 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_FOG]);
+ }
+ else if (arrayObj->FogCoord.Enabled) {
+ min = update_min(min, &arrayObj->FogCoord);
+ }
+
+ /* 6 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]);
+ }
+ else if (arrayObj->Index.Enabled) {
+ min = update_min(min, &arrayObj->Index);
+ }
+
+ /* 7 */
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]);
+ }
+
+ /* 8..15 */
+ for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) {
+ if (ctx->VertexProgram._Enabled
+ && arrayObj->VertexAttrib[i].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[i]);
+ }
+ else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
+ && arrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
+ min = update_min(min, &arrayObj->TexCoord[i - VERT_ATTRIB_TEX0]);
+ }
+ }
+
+ /* 16..31 */
+ if (ctx->VertexProgram._Current) {
+ for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) {
+ if (arrayObj->VertexAttrib[i].Enabled) {
+ min = update_min(min, &arrayObj->VertexAttrib[i]);
+ }
+ }
+ }
+
+ if (arrayObj->EdgeFlag.Enabled) {
+ min = update_min(min, &arrayObj->EdgeFlag);
+ }
+
+ /* _MaxElement is one past the last legal array element */
+ arrayObj->_MaxElement = min;
+}
+
+
+/**
+ * Update the following fields:
+ * ctx->VertexProgram._Enabled
+ * ctx->FragmentProgram._Enabled
+ * ctx->ATIFragmentShader._Enabled
+ * This needs to be done before texture state validation.
+ */
+static void
+update_program_enables(struct gl_context *ctx)
+{
+ /* These _Enabled flags indicate if the program is enabled AND valid. */
+ ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled
+ && ctx->VertexProgram.Current->Base.Instructions;
+ ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled
+ && ctx->FragmentProgram.Current->Base.Instructions;
+ ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled
+ && ctx->ATIFragmentShader.Current->Instructions[0];
+}
+
+
+/**
+ * Update vertex/fragment program state. In particular, update these fields:
+ * ctx->VertexProgram._Current
+ * ctx->VertexProgram._TnlProgram,
+ * These point to the highest priority enabled vertex/fragment program or are
+ * NULL if fixed-function processing is to be done.
+ *
+ * This function needs to be called after texture state validation in case
+ * we're generating a fragment program from fixed-function texture state.
+ *
+ * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex
+ * or fragment program is being used.
+ */
+static GLbitfield
+update_program(struct gl_context *ctx)
+{
+ const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;
+ const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;
+ const struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;
+ const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
+ const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
+ const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;
+ GLbitfield new_state = 0x0;
+
+ /*
+ * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current
+ * pointers to the programs that should be used for rendering. If either
+ * is NULL, use fixed-function code paths.
+ *
+ * These programs may come from several sources. The priority is as
+ * follows:
+ * 1. OpenGL 2.0/ARB vertex/fragment shaders
+ * 2. ARB/NV vertex/fragment programs
+ * 3. Programs derived from fixed-function state.
+ *
+ * Note: it's possible for a vertex shader to get used with a fragment
+ * program (and vice versa) here, but in practice that shouldn't ever
+ * come up, or matter.
+ */
+
+ if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) {
+ /* Use shader programs */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ fsProg->FragmentProgram);
+ }
+ else if (ctx->FragmentProgram._Enabled) {
+ /* use user-defined vertex program */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ ctx->FragmentProgram.Current);
+ }
+ else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ /* Use fragment program generated from fixed-function state.
+ */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ _mesa_get_fixed_func_fragment_program(ctx));
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ ctx->FragmentProgram._Current);
+ }
+ else {
+ /* no fragment program */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
+ }
+
+ if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) {
+ /* Use shader programs */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current,
+ gsProg->GeometryProgram);
+ } else {
+ /* no fragment program */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL);
+ }
+
+ /* Examine vertex program after fragment program as
+ * _mesa_get_fixed_func_vertex_program() needs to know active
+ * fragprog inputs.
+ */
+ if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) {
+ /* Use shader programs */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ vsProg->VertexProgram);
+ }
+ else if (ctx->VertexProgram._Enabled) {
+ /* use user-defined vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ ctx->VertexProgram.Current);
+ }
+ else if (ctx->VertexProgram._MaintainTnlProgram) {
+ /* Use vertex program generated from fixed-function state.
+ */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ _mesa_get_fixed_func_vertex_program(ctx));
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
+ ctx->VertexProgram._Current);
+ }
+ else {
+ /* no vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
+ }
+
+ /* Let the driver know what's happening:
+ */
+ if (ctx->FragmentProgram._Current != prevFP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
+ (struct gl_program *) ctx->FragmentProgram._Current);
+ }
+ }
+
+ if (ctx->GeometryProgram._Current != prevGP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM,
+ (struct gl_program *) ctx->GeometryProgram._Current);
+ }
+ }
+
+ if (ctx->VertexProgram._Current != prevVP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+ (struct gl_program *) ctx->VertexProgram._Current);
+ }
+ }
+
+ return new_state;
+}
+
+
+/**
+ * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.
+ */
+static GLbitfield
+update_program_constants(struct gl_context *ctx)
+{
+ GLbitfield new_state = 0x0;
+
+ if (ctx->FragmentProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->FragmentProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
+ }
+
+ if (ctx->GeometryProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->GeometryProgram._Current->Base.Parameters;
+ /*FIXME: StateFlags is always 0 because we have unnamed constant
+ * not state changes */
+ if (params /*&& params->StateFlags & ctx->NewState*/) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
+ }
+
+ if (ctx->VertexProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->VertexProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
+ }
+
+ return new_state;
+}
+
+
+
+
+static void
+update_viewport_matrix(struct gl_context *ctx)
+{
+ const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF;
+
+ ASSERT(depthMax > 0);
+
+ /* Compute scale and bias values. This is really driver-specific
+ * and should be maintained elsewhere if at all.
+ * NOTE: RasterPos uses this.
+ */
+ _math_matrix_viewport(&ctx->Viewport._WindowMap,
+ ctx->Viewport.X, ctx->Viewport.Y,
+ ctx->Viewport.Width, ctx->Viewport.Height,
+ ctx->Viewport.Near, ctx->Viewport.Far,
+ depthMax);
+}
+
+
+/**
+ * Update derived multisample state.
+ */
+static void
+update_multisample(struct gl_context *ctx)
+{
+ ctx->Multisample._Enabled = GL_FALSE;
+ if (ctx->Multisample.Enabled &&
+ ctx->DrawBuffer &&
+ ctx->DrawBuffer->Visual.sampleBuffers)
+ ctx->Multisample._Enabled = GL_TRUE;
+}
+
+
+/**
+ * Update derived color/blend/logicop state.
+ */
+static void
+update_color(struct gl_context *ctx)
+{
+ /* This is needed to support 1.1's RGB logic ops AND
+ * 1.0's blending logicops.
+ */
+ ctx->Color._LogicOpEnabled = _mesa_rgba_logicop_enabled(ctx);
+}
+
+
+/*
+ * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET
+ * in ctx->_TriangleCaps if needed.
+ */
+static void
+update_polygon(struct gl_context *ctx)
+{
+ ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);
+
+ if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
+ ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
+
+ if ( ctx->Polygon.OffsetPoint
+ || ctx->Polygon.OffsetLine
+ || ctx->Polygon.OffsetFill)
+ ctx->_TriangleCaps |= DD_TRI_OFFSET;
+}
+
+
+/**
+ * Update the ctx->_TriangleCaps bitfield.
+ * XXX that bitfield should really go away someday!
+ * This function must be called after other update_*() functions since
+ * there are dependencies on some other derived values.
+ */
+#if 0
+static void
+update_tricaps(struct gl_context *ctx, GLbitfield new_state)
+{
+ ctx->_TriangleCaps = 0;
+
+ /*
+ * Points
+ */
+ if (1/*new_state & _NEW_POINT*/) {
+ if (ctx->Point.SmoothFlag)
+ ctx->_TriangleCaps |= DD_POINT_SMOOTH;
+ if (ctx->Point._Attenuated)
+ ctx->_TriangleCaps |= DD_POINT_ATTEN;
+ }
+
+ /*
+ * Lines
+ */
+ if (1/*new_state & _NEW_LINE*/) {
+ if (ctx->Line.SmoothFlag)
+ ctx->_TriangleCaps |= DD_LINE_SMOOTH;
+ if (ctx->Line.StippleFlag)
+ ctx->_TriangleCaps |= DD_LINE_STIPPLE;
+ }
+
+ /*
+ * Polygons
+ */
+ if (1/*new_state & _NEW_POLYGON*/) {
+ if (ctx->Polygon.SmoothFlag)
+ ctx->_TriangleCaps |= DD_TRI_SMOOTH;
+ if (ctx->Polygon.StippleFlag)
+ ctx->_TriangleCaps |= DD_TRI_STIPPLE;
+ if (ctx->Polygon.FrontMode != GL_FILL
+ || ctx->Polygon.BackMode != GL_FILL)
+ ctx->_TriangleCaps |= DD_TRI_UNFILLED;
+ if (ctx->Polygon.CullFlag
+ && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
+ ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
+ if (ctx->Polygon.OffsetPoint ||
+ ctx->Polygon.OffsetLine ||
+ ctx->Polygon.OffsetFill)
+ ctx->_TriangleCaps |= DD_TRI_OFFSET;
+ }
+
+ /*
+ * Lighting and shading
+ */
+ if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
+ ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
+ if (ctx->Light.ShadeModel == GL_FLAT)
+ ctx->_TriangleCaps |= DD_FLATSHADE;
+ if (_mesa_need_secondary_color(ctx))
+ ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
+
+ /*
+ * Stencil
+ */
+ if (ctx->Stencil._TestTwoSide)
+ ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
+}
+#endif
+
+
+/**
+ * Compute derived GL state.
+ * If __struct gl_contextRec::NewState is non-zero then this function \b must
+ * be called before rendering anything.
+ *
+ * Calls dd_function_table::UpdateState to perform any internal state
+ * management necessary.
+ *
+ * \sa _mesa_update_modelview_project(), _mesa_update_texture(),
+ * _mesa_update_buffer_bounds(),
+ * _mesa_update_lighting() and _mesa_update_tnl_spaces().
+ */
+void
+_mesa_update_state_locked( struct gl_context *ctx )
+{
+ GLbitfield new_state = ctx->NewState;
+ GLbitfield prog_flags = _NEW_PROGRAM;
+ GLbitfield new_prog_state = 0x0;
+
+ if (new_state == _NEW_CURRENT_ATTRIB)
+ goto out;
+
+ if (MESA_VERBOSE & VERBOSE_STATE)
+ _mesa_print_state("_mesa_update_state", new_state);
+
+ /* Determine which state flags effect vertex/fragment program state */
+ if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG |
+ _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE |
+ _NEW_PROGRAM);
+ }
+ if (ctx->VertexProgram._MaintainTnlProgram) {
+ prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
+ _NEW_TRANSFORM | _NEW_POINT |
+ _NEW_FOG | _NEW_LIGHT |
+ _MESA_NEW_NEED_EYE_COORDS);
+ }
+
+ /*
+ * Now update derived state info
+ */
+
+ if (new_state & prog_flags)
+ update_program_enables( ctx );
+
+ if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
+ _mesa_update_modelview_project( ctx, new_state );
+
+ if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX))
+ _mesa_update_texture( ctx, new_state );
+
+ if (new_state & _NEW_BUFFERS)
+ _mesa_update_framebuffer(ctx);
+
+ if (new_state & (_NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT))
+ _mesa_update_draw_buffer_bounds( ctx );
+
+ if (new_state & _NEW_POLYGON)
+ update_polygon( ctx );
+
+ if (new_state & _NEW_LIGHT)
+ _mesa_update_lighting( ctx );
+
+ if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
+ _mesa_update_stencil( ctx );
+
+ if (new_state & _NEW_PIXEL)
+ _mesa_update_pixel( ctx, new_state );
+
+ if (new_state & _DD_NEW_SEPARATE_SPECULAR)
+ update_separate_specular( ctx );
+
+ if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
+ update_viewport_matrix(ctx);
+
+ if (new_state & _NEW_MULTISAMPLE)
+ update_multisample( ctx );
+
+ if (new_state & _NEW_COLOR)
+ update_color( ctx );
+
+#if 0
+ if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT
+ | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR))
+ update_tricaps( ctx, new_state );
+#endif
+
+ /* ctx->_NeedEyeCoords is now up to date.
+ *
+ * If the truth value of this variable has changed, update for the
+ * new lighting space and recompute the positions of lights and the
+ * normal transform.
+ *
+ * If the lighting space hasn't changed, may still need to recompute
+ * light positions & normal transforms for other reasons.
+ */
+ if (new_state & _MESA_NEW_NEED_EYE_COORDS)
+ _mesa_update_tnl_spaces( ctx, new_state );
+
+ if (new_state & prog_flags) {
+ /* When we generate programs from fixed-function vertex/fragment state
+ * this call may generate/bind a new program. If so, we need to
+ * propogate the _NEW_PROGRAM flag to the driver.
+ */
+ new_prog_state |= update_program( ctx );
+ }
+
+ if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
+ update_arrays( ctx );
+
+ out:
+ new_prog_state |= update_program_constants(ctx);
+
+ /*
+ * Give the driver a chance to act upon the new_state flags.
+ * The driver might plug in different span functions, for example.
+ * Also, this is where the driver can invalidate the state of any
+ * active modules (such as swrast_setup, swrast, tnl, etc).
+ *
+ * Set ctx->NewState to zero to avoid recursion if
+ * Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?)
+ */
+ new_state = ctx->NewState | new_prog_state;
+ ctx->NewState = 0;
+ ctx->Driver.UpdateState(ctx, new_state);
+ ctx->Array.NewState = 0;
+ if (!ctx->Array.RebindArrays)
+ ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;
+}
+
+
+/* This is the usual entrypoint for state updates:
+ */
+void
+_mesa_update_state( struct gl_context *ctx )
+{
+ _mesa_lock_context_textures(ctx);
+ _mesa_update_state_locked(ctx);
+ _mesa_unlock_context_textures(ctx);
+}
+
+
+
+
+/**
+ * Want to figure out which fragment program inputs are actually
+ * constant/current values from ctx->Current. These should be
+ * referenced as a tracked state variable rather than a fragment
+ * program input, to save the overhead of putting a constant value in
+ * every submitted vertex, transferring it to hardware, interpolating
+ * it across the triangle, etc...
+ *
+ * When there is a VP bound, just use vp->outputs. But when we're
+ * generating vp from fixed function state, basically want to
+ * calculate:
+ *
+ * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) |
+ * potential_vp_outputs )
+ *
+ * Where potential_vp_outputs is calculated by looking at enabled
+ * texgen, etc.
+ *
+ * The generated fragment program should then only declare inputs that
+ * may vary or otherwise differ from the ctx->Current values.
+ * Otherwise, the fp should track them as state values instead.
+ */
+void
+_mesa_set_varying_vp_inputs( struct gl_context *ctx,
+ GLbitfield varying_inputs )
+{
+ if (ctx->varying_vp_inputs != varying_inputs) {
+ ctx->varying_vp_inputs = varying_inputs;
+ ctx->NewState |= _NEW_ARRAY;
+ /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/
+ }
+}
+
+
+/**
+ * Used by drivers to tell core Mesa that the driver is going to
+ * install/ use its own vertex program. In particular, this will
+ * prevent generated fragment programs from using state vars instead
+ * of ordinary varyings/inputs.
+ */
+void
+_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)
+{
+ if (ctx->VertexProgram._Overriden != flag) {
+ ctx->VertexProgram._Overriden = flag;
+
+ /* Set one of the bits which will trigger fragment program
+ * regeneration:
+ */
+ ctx->NewState |= _NEW_PROGRAM;
+ }
+}
diff --git a/mesalib/src/mesa/main/stencil.c b/mesalib/src/mesa/main/stencil.c index d898bf1d7..b49ddbdbb 100644 --- a/mesalib/src/mesa/main/stencil.c +++ b/mesalib/src/mesa/main/stencil.c @@ -1,614 +1,614 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file stencil.c - * Stencil operations. - * - * Note: There's some conflict between GL_EXT_stencil_two_side and - * OpenGL 2.0's two-sided stencil feature. - * - * With GL_EXT_stencil_two_side, calling glStencilOp/Func/Mask() only the - * front OR back face state (as set by glActiveStencilFaceEXT) is set. - * - * But with OpenGL 2.0, calling glStencilOp/Func/Mask() sets BOTH the - * front AND back state. - * - * Also, note that GL_ATI_separate_stencil is different as well: - * glStencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, ...) vs. - * glStencilFuncSeparate(GLenum face, GLenum func, ...). - * - * This problem is solved by keeping three sets of stencil state: - * state[0] = GL_FRONT state. - * state[1] = OpenGL 2.0 / GL_ATI_separate_stencil GL_BACK state. - * state[2] = GL_EXT_stencil_two_side GL_BACK state. - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "macros.h" -#include "stencil.h" -#include "mtypes.h" - - -static GLboolean -validate_stencil_op(struct gl_context *ctx, GLenum op) -{ - switch (op) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - return GL_TRUE; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - return GL_TRUE; - } - /* FALL-THROUGH */ - default: - return GL_FALSE; - } -} - - -static GLboolean -validate_stencil_func(struct gl_context *ctx, GLenum func) -{ - switch (func) { - case GL_NEVER: - case GL_LESS: - case GL_LEQUAL: - case GL_GREATER: - case GL_GEQUAL: - case GL_EQUAL: - case GL_NOTEQUAL: - case GL_ALWAYS: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Set the clear value for the stencil buffer. - * - * \param s clear value. - * - * \sa glClearStencil(). - * - * Updates gl_stencil_attrib::Clear. On change - * flushes the vertices and notifies the driver via - * the dd_function_table::ClearStencil callback. - */ -void GLAPIENTRY -_mesa_ClearStencil( GLint s ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Stencil.Clear == (GLuint) s) - return; - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.Clear = (GLuint) s; - - if (ctx->Driver.ClearStencil) { - ctx->Driver.ClearStencil( ctx, s ); - } -} - - -/** - * Set the function and reference value for stencil testing. - * - * \param frontfunc front test function. - * \param backfunc back test function. - * \param ref front and back reference value. - * \param mask front and back bitmask. - * - * \sa glStencilFunc(). - * - * Verifies the parameters and updates the respective values in - * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the - * driver via the dd_function_table::StencilFunc callback. - */ -void GLAPIENTRY -_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask ) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilFuncSeparateATI()\n"); - - if (!validate_stencil_func(ctx, frontfunc)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glStencilFuncSeparateATI(frontfunc)"); - return; - } - if (!validate_stencil_func(ctx, backfunc)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glStencilFuncSeparateATI(backfunc)"); - return; - } - - ref = CLAMP( ref, 0, stencilMax ); - - /* set both front and back state */ - if (ctx->Stencil.Function[0] == frontfunc && - ctx->Stencil.Function[1] == backfunc && - ctx->Stencil.ValueMask[0] == mask && - ctx->Stencil.ValueMask[1] == mask && - ctx->Stencil.Ref[0] == ref && - ctx->Stencil.Ref[1] == ref) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.Function[0] = frontfunc; - ctx->Stencil.Function[1] = backfunc; - ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref; - ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask; - if (ctx->Driver.StencilFuncSeparate) { - ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT, - frontfunc, ref, mask); - ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, - backfunc, ref, mask); - } -} - - -/** - * Set the function and reference value for stencil testing. - * - * \param func test function. - * \param ref reference value. - * \param mask bitmask. - * - * \sa glStencilFunc(). - * - * Verifies the parameters and updates the respective values in - * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the - * driver via the dd_function_table::StencilFunc callback. - */ -void GLAPIENTRY -_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask ) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1; - const GLint face = ctx->Stencil.ActiveFace; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilFunc()\n"); - - if (!validate_stencil_func(ctx, func)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)"); - return; - } - - ref = CLAMP( ref, 0, stencilMax ); - - if (face != 0) { - if (ctx->Stencil.Function[face] == func && - ctx->Stencil.ValueMask[face] == mask && - ctx->Stencil.Ref[face] == ref) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.Function[face] = func; - ctx->Stencil.Ref[face] = ref; - ctx->Stencil.ValueMask[face] = mask; - - /* Only propagate the change to the driver if EXT_stencil_two_side - * is enabled. - */ - if (ctx->Driver.StencilFuncSeparate && ctx->Stencil.TestTwoSide) { - ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, func, ref, mask); - } - } - else { - /* set both front and back state */ - if (ctx->Stencil.Function[0] == func && - ctx->Stencil.Function[1] == func && - ctx->Stencil.ValueMask[0] == mask && - ctx->Stencil.ValueMask[1] == mask && - ctx->Stencil.Ref[0] == ref && - ctx->Stencil.Ref[1] == ref) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.Function[0] = ctx->Stencil.Function[1] = func; - ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref; - ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask; - if (ctx->Driver.StencilFuncSeparate) { - ctx->Driver.StencilFuncSeparate(ctx, - ((ctx->Stencil.TestTwoSide) - ? GL_FRONT : GL_FRONT_AND_BACK), - func, ref, mask); - } - } -} - - -/** - * Set the stencil writing mask. - * - * \param mask bit-mask to enable/disable writing of individual bits in the - * stencil planes. - * - * \sa glStencilMask(). - * - * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and - * notifies the driver via the dd_function_table::StencilMask callback. - */ -void GLAPIENTRY -_mesa_StencilMask( GLuint mask ) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint face = ctx->Stencil.ActiveFace; - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilMask()\n"); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (face != 0) { - /* Only modify the EXT_stencil_two_side back-face state. - */ - if (ctx->Stencil.WriteMask[face] == mask) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.WriteMask[face] = mask; - - /* Only propagate the change to the driver if EXT_stencil_two_side - * is enabled. - */ - if (ctx->Driver.StencilMaskSeparate && ctx->Stencil.TestTwoSide) { - ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, mask); - } - } - else { - /* set both front and back state */ - if (ctx->Stencil.WriteMask[0] == mask && - ctx->Stencil.WriteMask[1] == mask) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask; - if (ctx->Driver.StencilMaskSeparate) { - ctx->Driver.StencilMaskSeparate(ctx, - ((ctx->Stencil.TestTwoSide) - ? GL_FRONT : GL_FRONT_AND_BACK), - mask); - } - } -} - - -/** - * Set the stencil test actions. - * - * \param fail action to take when stencil test fails. - * \param zfail action to take when stencil test passes, but depth test fails. - * \param zpass action to take when stencil test passes and the depth test - * passes (or depth testing is not enabled). - * - * \sa glStencilOp(). - * - * Verifies the parameters and updates the respective fields in - * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the - * driver via the dd_function_table::StencilOp callback. - */ -void GLAPIENTRY -_mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint face = ctx->Stencil.ActiveFace; - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilOp()\n"); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (!validate_stencil_op(ctx, fail)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(sfail)"); - return; - } - if (!validate_stencil_op(ctx, zfail)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zfail)"); - return; - } - if (!validate_stencil_op(ctx, zpass)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zpass)"); - return; - } - - if (face != 0) { - /* only set active face state */ - if (ctx->Stencil.ZFailFunc[face] == zfail && - ctx->Stencil.ZPassFunc[face] == zpass && - ctx->Stencil.FailFunc[face] == fail) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ZFailFunc[face] = zfail; - ctx->Stencil.ZPassFunc[face] = zpass; - ctx->Stencil.FailFunc[face] = fail; - - /* Only propagate the change to the driver if EXT_stencil_two_side - * is enabled. - */ - if (ctx->Driver.StencilOpSeparate && ctx->Stencil.TestTwoSide) { - ctx->Driver.StencilOpSeparate(ctx, GL_BACK, fail, zfail, zpass); - } - } - else { - /* set both front and back state */ - if (ctx->Stencil.ZFailFunc[0] == zfail && - ctx->Stencil.ZFailFunc[1] == zfail && - ctx->Stencil.ZPassFunc[0] == zpass && - ctx->Stencil.ZPassFunc[1] == zpass && - ctx->Stencil.FailFunc[0] == fail && - ctx->Stencil.FailFunc[1] == fail) - return; - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ZFailFunc[0] = ctx->Stencil.ZFailFunc[1] = zfail; - ctx->Stencil.ZPassFunc[0] = ctx->Stencil.ZPassFunc[1] = zpass; - ctx->Stencil.FailFunc[0] = ctx->Stencil.FailFunc[1] = fail; - if (ctx->Driver.StencilOpSeparate) { - ctx->Driver.StencilOpSeparate(ctx, - ((ctx->Stencil.TestTwoSide) - ? GL_FRONT : GL_FRONT_AND_BACK), - fail, zfail, zpass); - } - } -} - - - -#if _HAVE_FULL_GL -/* GL_EXT_stencil_two_side */ -void GLAPIENTRY -_mesa_ActiveStencilFaceEXT(GLenum face) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glActiveStencilFaceEXT()\n"); - - if (!ctx->Extensions.EXT_stencil_two_side) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveStencilFaceEXT"); - return; - } - - if (face == GL_FRONT || face == GL_BACK) { - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ActiveFace = (face == GL_FRONT) ? 0 : 2; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, "glActiveStencilFaceEXT(face)"); - } -} -#endif - - - -/** - * OpenGL 2.0 function. - * \todo Make StencilOp() call this function. And eventually remove the - * ctx->Driver.StencilOp function and use ctx->Driver.StencilOpSeparate - * instead. - */ -void GLAPIENTRY -_mesa_StencilOpSeparate(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass) -{ - GLboolean set = GL_FALSE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilOpSeparate()\n"); - - if (!validate_stencil_op(ctx, sfail)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(sfail)"); - return; - } - if (!validate_stencil_op(ctx, zfail)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)"); - return; - } - if (!validate_stencil_op(ctx, zpass)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)"); - return; - } - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(face)"); - return; - } - - if (face != GL_BACK) { - /* set front */ - if (ctx->Stencil.ZFailFunc[0] != zfail || - ctx->Stencil.ZPassFunc[0] != zpass || - ctx->Stencil.FailFunc[0] != sfail){ - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ZFailFunc[0] = zfail; - ctx->Stencil.ZPassFunc[0] = zpass; - ctx->Stencil.FailFunc[0] = sfail; - set = GL_TRUE; - } - } - if (face != GL_FRONT) { - /* set back */ - if (ctx->Stencil.ZFailFunc[1] != zfail || - ctx->Stencil.ZPassFunc[1] != zpass || - ctx->Stencil.FailFunc[1] != sfail) { - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ZFailFunc[1] = zfail; - ctx->Stencil.ZPassFunc[1] = zpass; - ctx->Stencil.FailFunc[1] = sfail; - set = GL_TRUE; - } - } - if (set && ctx->Driver.StencilOpSeparate) { - ctx->Driver.StencilOpSeparate(ctx, face, sfail, zfail, zpass); - } -} - - -/* OpenGL 2.0 */ -void GLAPIENTRY -_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilFuncSeparate()\n"); - - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)"); - return; - } - if (!validate_stencil_func(ctx, func)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)"); - return; - } - - ref = CLAMP(ref, 0, stencilMax); - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - - if (face != GL_BACK) { - /* set front */ - ctx->Stencil.Function[0] = func; - ctx->Stencil.Ref[0] = ref; - ctx->Stencil.ValueMask[0] = mask; - } - if (face != GL_FRONT) { - /* set back */ - ctx->Stencil.Function[1] = func; - ctx->Stencil.Ref[1] = ref; - ctx->Stencil.ValueMask[1] = mask; - } - if (ctx->Driver.StencilFuncSeparate) { - ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask); - } -} - - -/* OpenGL 2.0 */ -void GLAPIENTRY -_mesa_StencilMaskSeparate(GLenum face, GLuint mask) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glStencilMaskSeparate()\n"); - - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilaMaskSeparate(face)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - - if (face != GL_BACK) { - ctx->Stencil.WriteMask[0] = mask; - } - if (face != GL_FRONT) { - ctx->Stencil.WriteMask[1] = mask; - } - if (ctx->Driver.StencilMaskSeparate) { - ctx->Driver.StencilMaskSeparate(ctx, face, mask); - } -} - - -/** - * Update derived stencil state. - */ -void -_mesa_update_stencil(struct gl_context *ctx) -{ - const GLint face = ctx->Stencil._BackFace; - - ctx->Stencil._Enabled = (ctx->Stencil.Enabled && - ctx->DrawBuffer->Visual.stencilBits > 0); - - ctx->Stencil._TestTwoSide = - ctx->Stencil._Enabled && - (ctx->Stencil.Function[0] != ctx->Stencil.Function[face] || - ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] || - ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] || - ctx->Stencil.ZFailFunc[0] != ctx->Stencil.ZFailFunc[face] || - ctx->Stencil.Ref[0] != ctx->Stencil.Ref[face] || - ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[face] || - ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[face]); -} - - -/** - * Initialize the context stipple state. - * - * \param ctx GL context. - * - * Initializes __struct gl_contextRec::Stencil attribute group. - */ -void -_mesa_init_stencil(struct gl_context *ctx) -{ - ctx->Stencil.Enabled = GL_FALSE; - ctx->Stencil.TestTwoSide = GL_FALSE; - ctx->Stencil.ActiveFace = 0; /* 0 = GL_FRONT, 2 = GL_BACK */ - ctx->Stencil.Function[0] = GL_ALWAYS; - ctx->Stencil.Function[1] = GL_ALWAYS; - ctx->Stencil.Function[2] = GL_ALWAYS; - ctx->Stencil.FailFunc[0] = GL_KEEP; - ctx->Stencil.FailFunc[1] = GL_KEEP; - ctx->Stencil.FailFunc[2] = GL_KEEP; - ctx->Stencil.ZPassFunc[0] = GL_KEEP; - ctx->Stencil.ZPassFunc[1] = GL_KEEP; - ctx->Stencil.ZPassFunc[2] = GL_KEEP; - ctx->Stencil.ZFailFunc[0] = GL_KEEP; - ctx->Stencil.ZFailFunc[1] = GL_KEEP; - ctx->Stencil.ZFailFunc[2] = GL_KEEP; - ctx->Stencil.Ref[0] = 0; - ctx->Stencil.Ref[1] = 0; - ctx->Stencil.Ref[2] = 0; - ctx->Stencil.ValueMask[0] = ~0U; - ctx->Stencil.ValueMask[1] = ~0U; - ctx->Stencil.ValueMask[2] = ~0U; - ctx->Stencil.WriteMask[0] = ~0U; - ctx->Stencil.WriteMask[1] = ~0U; - ctx->Stencil.WriteMask[2] = ~0U; - ctx->Stencil.Clear = 0; - ctx->Stencil._BackFace = 1; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file stencil.c
+ * Stencil operations.
+ *
+ * Note: There's some conflict between GL_EXT_stencil_two_side and
+ * OpenGL 2.0's two-sided stencil feature.
+ *
+ * With GL_EXT_stencil_two_side, calling glStencilOp/Func/Mask() only the
+ * front OR back face state (as set by glActiveStencilFaceEXT) is set.
+ *
+ * But with OpenGL 2.0, calling glStencilOp/Func/Mask() sets BOTH the
+ * front AND back state.
+ *
+ * Also, note that GL_ATI_separate_stencil is different as well:
+ * glStencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, ...) vs.
+ * glStencilFuncSeparate(GLenum face, GLenum func, ...).
+ *
+ * This problem is solved by keeping three sets of stencil state:
+ * state[0] = GL_FRONT state.
+ * state[1] = OpenGL 2.0 / GL_ATI_separate_stencil GL_BACK state.
+ * state[2] = GL_EXT_stencil_two_side GL_BACK state.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "macros.h"
+#include "stencil.h"
+#include "mtypes.h"
+
+
+static GLboolean
+validate_stencil_op(struct gl_context *ctx, GLenum op)
+{
+ switch (op) {
+ case GL_KEEP:
+ case GL_ZERO:
+ case GL_REPLACE:
+ case GL_INCR:
+ case GL_DECR:
+ case GL_INVERT:
+ return GL_TRUE;
+ case GL_INCR_WRAP_EXT:
+ case GL_DECR_WRAP_EXT:
+ if (ctx->Extensions.EXT_stencil_wrap) {
+ return GL_TRUE;
+ }
+ /* FALL-THROUGH */
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+static GLboolean
+validate_stencil_func(struct gl_context *ctx, GLenum func)
+{
+ switch (func) {
+ case GL_NEVER:
+ case GL_LESS:
+ case GL_LEQUAL:
+ case GL_GREATER:
+ case GL_GEQUAL:
+ case GL_EQUAL:
+ case GL_NOTEQUAL:
+ case GL_ALWAYS:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Set the clear value for the stencil buffer.
+ *
+ * \param s clear value.
+ *
+ * \sa glClearStencil().
+ *
+ * Updates gl_stencil_attrib::Clear. On change
+ * flushes the vertices and notifies the driver via
+ * the dd_function_table::ClearStencil callback.
+ */
+void GLAPIENTRY
+_mesa_ClearStencil( GLint s )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (ctx->Stencil.Clear == (GLuint) s)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.Clear = (GLuint) s;
+
+ if (ctx->Driver.ClearStencil) {
+ ctx->Driver.ClearStencil( ctx, s );
+ }
+}
+
+
+/**
+ * Set the function and reference value for stencil testing.
+ *
+ * \param frontfunc front test function.
+ * \param backfunc back test function.
+ * \param ref front and back reference value.
+ * \param mask front and back bitmask.
+ *
+ * \sa glStencilFunc().
+ *
+ * Verifies the parameters and updates the respective values in
+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
+ * driver via the dd_function_table::StencilFunc callback.
+ */
+void GLAPIENTRY
+_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilFuncSeparateATI()\n");
+
+ if (!validate_stencil_func(ctx, frontfunc)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glStencilFuncSeparateATI(frontfunc)");
+ return;
+ }
+ if (!validate_stencil_func(ctx, backfunc)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glStencilFuncSeparateATI(backfunc)");
+ return;
+ }
+
+ ref = CLAMP( ref, 0, stencilMax );
+
+ /* set both front and back state */
+ if (ctx->Stencil.Function[0] == frontfunc &&
+ ctx->Stencil.Function[1] == backfunc &&
+ ctx->Stencil.ValueMask[0] == mask &&
+ ctx->Stencil.ValueMask[1] == mask &&
+ ctx->Stencil.Ref[0] == ref &&
+ ctx->Stencil.Ref[1] == ref)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.Function[0] = frontfunc;
+ ctx->Stencil.Function[1] = backfunc;
+ ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref;
+ ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
+ if (ctx->Driver.StencilFuncSeparate) {
+ ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
+ frontfunc, ref, mask);
+ ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
+ backfunc, ref, mask);
+ }
+}
+
+
+/**
+ * Set the function and reference value for stencil testing.
+ *
+ * \param func test function.
+ * \param ref reference value.
+ * \param mask bitmask.
+ *
+ * \sa glStencilFunc().
+ *
+ * Verifies the parameters and updates the respective values in
+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
+ * driver via the dd_function_table::StencilFunc callback.
+ */
+void GLAPIENTRY
+_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
+ const GLint face = ctx->Stencil.ActiveFace;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilFunc()\n");
+
+ if (!validate_stencil_func(ctx, func)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)");
+ return;
+ }
+
+ ref = CLAMP( ref, 0, stencilMax );
+
+ if (face != 0) {
+ if (ctx->Stencil.Function[face] == func &&
+ ctx->Stencil.ValueMask[face] == mask &&
+ ctx->Stencil.Ref[face] == ref)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.Function[face] = func;
+ ctx->Stencil.Ref[face] = ref;
+ ctx->Stencil.ValueMask[face] = mask;
+
+ /* Only propagate the change to the driver if EXT_stencil_two_side
+ * is enabled.
+ */
+ if (ctx->Driver.StencilFuncSeparate && ctx->Stencil.TestTwoSide) {
+ ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, func, ref, mask);
+ }
+ }
+ else {
+ /* set both front and back state */
+ if (ctx->Stencil.Function[0] == func &&
+ ctx->Stencil.Function[1] == func &&
+ ctx->Stencil.ValueMask[0] == mask &&
+ ctx->Stencil.ValueMask[1] == mask &&
+ ctx->Stencil.Ref[0] == ref &&
+ ctx->Stencil.Ref[1] == ref)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.Function[0] = ctx->Stencil.Function[1] = func;
+ ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref;
+ ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
+ if (ctx->Driver.StencilFuncSeparate) {
+ ctx->Driver.StencilFuncSeparate(ctx,
+ ((ctx->Stencil.TestTwoSide)
+ ? GL_FRONT : GL_FRONT_AND_BACK),
+ func, ref, mask);
+ }
+ }
+}
+
+
+/**
+ * Set the stencil writing mask.
+ *
+ * \param mask bit-mask to enable/disable writing of individual bits in the
+ * stencil planes.
+ *
+ * \sa glStencilMask().
+ *
+ * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and
+ * notifies the driver via the dd_function_table::StencilMask callback.
+ */
+void GLAPIENTRY
+_mesa_StencilMask( GLuint mask )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const GLint face = ctx->Stencil.ActiveFace;
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilMask()\n");
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (face != 0) {
+ /* Only modify the EXT_stencil_two_side back-face state.
+ */
+ if (ctx->Stencil.WriteMask[face] == mask)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.WriteMask[face] = mask;
+
+ /* Only propagate the change to the driver if EXT_stencil_two_side
+ * is enabled.
+ */
+ if (ctx->Driver.StencilMaskSeparate && ctx->Stencil.TestTwoSide) {
+ ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, mask);
+ }
+ }
+ else {
+ /* set both front and back state */
+ if (ctx->Stencil.WriteMask[0] == mask &&
+ ctx->Stencil.WriteMask[1] == mask)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask;
+ if (ctx->Driver.StencilMaskSeparate) {
+ ctx->Driver.StencilMaskSeparate(ctx,
+ ((ctx->Stencil.TestTwoSide)
+ ? GL_FRONT : GL_FRONT_AND_BACK),
+ mask);
+ }
+ }
+}
+
+
+/**
+ * Set the stencil test actions.
+ *
+ * \param fail action to take when stencil test fails.
+ * \param zfail action to take when stencil test passes, but depth test fails.
+ * \param zpass action to take when stencil test passes and the depth test
+ * passes (or depth testing is not enabled).
+ *
+ * \sa glStencilOp().
+ *
+ * Verifies the parameters and updates the respective fields in
+ * __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
+ * driver via the dd_function_table::StencilOp callback.
+ */
+void GLAPIENTRY
+_mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const GLint face = ctx->Stencil.ActiveFace;
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilOp()\n");
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!validate_stencil_op(ctx, fail)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(sfail)");
+ return;
+ }
+ if (!validate_stencil_op(ctx, zfail)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zfail)");
+ return;
+ }
+ if (!validate_stencil_op(ctx, zpass)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp(zpass)");
+ return;
+ }
+
+ if (face != 0) {
+ /* only set active face state */
+ if (ctx->Stencil.ZFailFunc[face] == zfail &&
+ ctx->Stencil.ZPassFunc[face] == zpass &&
+ ctx->Stencil.FailFunc[face] == fail)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.ZFailFunc[face] = zfail;
+ ctx->Stencil.ZPassFunc[face] = zpass;
+ ctx->Stencil.FailFunc[face] = fail;
+
+ /* Only propagate the change to the driver if EXT_stencil_two_side
+ * is enabled.
+ */
+ if (ctx->Driver.StencilOpSeparate && ctx->Stencil.TestTwoSide) {
+ ctx->Driver.StencilOpSeparate(ctx, GL_BACK, fail, zfail, zpass);
+ }
+ }
+ else {
+ /* set both front and back state */
+ if (ctx->Stencil.ZFailFunc[0] == zfail &&
+ ctx->Stencil.ZFailFunc[1] == zfail &&
+ ctx->Stencil.ZPassFunc[0] == zpass &&
+ ctx->Stencil.ZPassFunc[1] == zpass &&
+ ctx->Stencil.FailFunc[0] == fail &&
+ ctx->Stencil.FailFunc[1] == fail)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.ZFailFunc[0] = ctx->Stencil.ZFailFunc[1] = zfail;
+ ctx->Stencil.ZPassFunc[0] = ctx->Stencil.ZPassFunc[1] = zpass;
+ ctx->Stencil.FailFunc[0] = ctx->Stencil.FailFunc[1] = fail;
+ if (ctx->Driver.StencilOpSeparate) {
+ ctx->Driver.StencilOpSeparate(ctx,
+ ((ctx->Stencil.TestTwoSide)
+ ? GL_FRONT : GL_FRONT_AND_BACK),
+ fail, zfail, zpass);
+ }
+ }
+}
+
+
+
+#if _HAVE_FULL_GL
+/* GL_EXT_stencil_two_side */
+void GLAPIENTRY
+_mesa_ActiveStencilFaceEXT(GLenum face)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glActiveStencilFaceEXT()\n");
+
+ if (!ctx->Extensions.EXT_stencil_two_side) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveStencilFaceEXT");
+ return;
+ }
+
+ if (face == GL_FRONT || face == GL_BACK) {
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.ActiveFace = (face == GL_FRONT) ? 0 : 2;
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glActiveStencilFaceEXT(face)");
+ }
+}
+#endif
+
+
+
+/**
+ * OpenGL 2.0 function.
+ * \todo Make StencilOp() call this function. And eventually remove the
+ * ctx->Driver.StencilOp function and use ctx->Driver.StencilOpSeparate
+ * instead.
+ */
+void GLAPIENTRY
+_mesa_StencilOpSeparate(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass)
+{
+ GLboolean set = GL_FALSE;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilOpSeparate()\n");
+
+ if (!validate_stencil_op(ctx, sfail)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(sfail)");
+ return;
+ }
+ if (!validate_stencil_op(ctx, zfail)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)");
+ return;
+ }
+ if (!validate_stencil_op(ctx, zpass)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)");
+ return;
+ }
+ if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(face)");
+ return;
+ }
+
+ if (face != GL_BACK) {
+ /* set front */
+ if (ctx->Stencil.ZFailFunc[0] != zfail ||
+ ctx->Stencil.ZPassFunc[0] != zpass ||
+ ctx->Stencil.FailFunc[0] != sfail){
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.ZFailFunc[0] = zfail;
+ ctx->Stencil.ZPassFunc[0] = zpass;
+ ctx->Stencil.FailFunc[0] = sfail;
+ set = GL_TRUE;
+ }
+ }
+ if (face != GL_FRONT) {
+ /* set back */
+ if (ctx->Stencil.ZFailFunc[1] != zfail ||
+ ctx->Stencil.ZPassFunc[1] != zpass ||
+ ctx->Stencil.FailFunc[1] != sfail) {
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+ ctx->Stencil.ZFailFunc[1] = zfail;
+ ctx->Stencil.ZPassFunc[1] = zpass;
+ ctx->Stencil.FailFunc[1] = sfail;
+ set = GL_TRUE;
+ }
+ }
+ if (set && ctx->Driver.StencilOpSeparate) {
+ ctx->Driver.StencilOpSeparate(ctx, face, sfail, zfail, zpass);
+ }
+}
+
+
+/* OpenGL 2.0 */
+void GLAPIENTRY
+_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilFuncSeparate()\n");
+
+ if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");
+ return;
+ }
+ if (!validate_stencil_func(ctx, func)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");
+ return;
+ }
+
+ ref = CLAMP(ref, 0, stencilMax);
+
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+
+ if (face != GL_BACK) {
+ /* set front */
+ ctx->Stencil.Function[0] = func;
+ ctx->Stencil.Ref[0] = ref;
+ ctx->Stencil.ValueMask[0] = mask;
+ }
+ if (face != GL_FRONT) {
+ /* set back */
+ ctx->Stencil.Function[1] = func;
+ ctx->Stencil.Ref[1] = ref;
+ ctx->Stencil.ValueMask[1] = mask;
+ }
+ if (ctx->Driver.StencilFuncSeparate) {
+ ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask);
+ }
+}
+
+
+/* OpenGL 2.0 */
+void GLAPIENTRY
+_mesa_StencilMaskSeparate(GLenum face, GLuint mask)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glStencilMaskSeparate()\n");
+
+ if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glStencilaMaskSeparate(face)");
+ return;
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_STENCIL);
+
+ if (face != GL_BACK) {
+ ctx->Stencil.WriteMask[0] = mask;
+ }
+ if (face != GL_FRONT) {
+ ctx->Stencil.WriteMask[1] = mask;
+ }
+ if (ctx->Driver.StencilMaskSeparate) {
+ ctx->Driver.StencilMaskSeparate(ctx, face, mask);
+ }
+}
+
+
+/**
+ * Update derived stencil state.
+ */
+void
+_mesa_update_stencil(struct gl_context *ctx)
+{
+ const GLint face = ctx->Stencil._BackFace;
+
+ ctx->Stencil._Enabled = (ctx->Stencil.Enabled &&
+ ctx->DrawBuffer->Visual.stencilBits > 0);
+
+ ctx->Stencil._TestTwoSide =
+ ctx->Stencil._Enabled &&
+ (ctx->Stencil.Function[0] != ctx->Stencil.Function[face] ||
+ ctx->Stencil.FailFunc[0] != ctx->Stencil.FailFunc[face] ||
+ ctx->Stencil.ZPassFunc[0] != ctx->Stencil.ZPassFunc[face] ||
+ ctx->Stencil.ZFailFunc[0] != ctx->Stencil.ZFailFunc[face] ||
+ ctx->Stencil.Ref[0] != ctx->Stencil.Ref[face] ||
+ ctx->Stencil.ValueMask[0] != ctx->Stencil.ValueMask[face] ||
+ ctx->Stencil.WriteMask[0] != ctx->Stencil.WriteMask[face]);
+}
+
+
+/**
+ * Initialize the context stipple state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __struct gl_contextRec::Stencil attribute group.
+ */
+void
+_mesa_init_stencil(struct gl_context *ctx)
+{
+ ctx->Stencil.Enabled = GL_FALSE;
+ ctx->Stencil.TestTwoSide = GL_FALSE;
+ ctx->Stencil.ActiveFace = 0; /* 0 = GL_FRONT, 2 = GL_BACK */
+ ctx->Stencil.Function[0] = GL_ALWAYS;
+ ctx->Stencil.Function[1] = GL_ALWAYS;
+ ctx->Stencil.Function[2] = GL_ALWAYS;
+ ctx->Stencil.FailFunc[0] = GL_KEEP;
+ ctx->Stencil.FailFunc[1] = GL_KEEP;
+ ctx->Stencil.FailFunc[2] = GL_KEEP;
+ ctx->Stencil.ZPassFunc[0] = GL_KEEP;
+ ctx->Stencil.ZPassFunc[1] = GL_KEEP;
+ ctx->Stencil.ZPassFunc[2] = GL_KEEP;
+ ctx->Stencil.ZFailFunc[0] = GL_KEEP;
+ ctx->Stencil.ZFailFunc[1] = GL_KEEP;
+ ctx->Stencil.ZFailFunc[2] = GL_KEEP;
+ ctx->Stencil.Ref[0] = 0;
+ ctx->Stencil.Ref[1] = 0;
+ ctx->Stencil.Ref[2] = 0;
+ ctx->Stencil.ValueMask[0] = ~0U;
+ ctx->Stencil.ValueMask[1] = ~0U;
+ ctx->Stencil.ValueMask[2] = ~0U;
+ ctx->Stencil.WriteMask[0] = ~0U;
+ ctx->Stencil.WriteMask[1] = ~0U;
+ ctx->Stencil.WriteMask[2] = ~0U;
+ ctx->Stencil.Clear = 0;
+ ctx->Stencil._BackFace = 1;
+}
diff --git a/mesalib/src/mesa/main/syncobj.c b/mesalib/src/mesa/main/syncobj.c index 676038430..25307a17c 100644 --- a/mesalib/src/mesa/main/syncobj.c +++ b/mesalib/src/mesa/main/syncobj.c @@ -125,7 +125,7 @@ _mesa_wait_sync(struct gl_context *ctx, struct gl_sync_object *syncObj, }
-void
+void GLAPIENTRY
_mesa_init_sync_object_functions(struct dd_function_table *driver)
{
driver->NewSyncObject = _mesa_new_sync_object;
@@ -140,7 +140,7 @@ _mesa_init_sync_object_functions(struct dd_function_table *driver) }
-void
+void GLAPIENTRY
_mesa_init_sync_dispatch(struct _glapi_table *disp)
{
SET_IsSync(disp, _mesa_IsSync);
@@ -156,7 +156,7 @@ _mesa_init_sync_dispatch(struct _glapi_table *disp) /**
* Allocate/init the context state related to sync objects.
*/
-void
+void GLAPIENTRY
_mesa_init_sync(struct gl_context *ctx)
{
(void) ctx;
@@ -166,7 +166,7 @@ _mesa_init_sync(struct gl_context *ctx) /**
* Free the context state related to sync objects.
*/
-void
+void GLAPIENTRY
_mesa_free_sync_data(struct gl_context *ctx)
{
(void) ctx;
@@ -182,7 +182,7 @@ _mesa_validate_sync(struct gl_sync_object *syncObj) }
-void
+void GLAPIENTRY
_mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
{
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
@@ -191,7 +191,7 @@ _mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj) }
-void
+void GLAPIENTRY
_mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj)
{
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
diff --git a/mesalib/src/mesa/main/syncobj.h b/mesalib/src/mesa/main/syncobj.h index ac1384f61..e83ac8b0e 100644 --- a/mesalib/src/mesa/main/syncobj.h +++ b/mesalib/src/mesa/main/syncobj.h @@ -41,22 +41,22 @@ struct gl_sync_object; #if FEATURE_ARB_sync
-extern void
+extern void GLAPIENTRY
_mesa_init_sync_object_functions(struct dd_function_table *driver);
-extern void
+extern void GLAPIENTRY
_mesa_init_sync_dispatch(struct _glapi_table *disp);
-extern void
+extern void GLAPIENTRY
_mesa_init_sync(struct gl_context *);
-extern void
+extern void GLAPIENTRY
_mesa_free_sync_data(struct gl_context *);
-extern void
+extern void GLAPIENTRY
_mesa_ref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj);
-extern void
+extern void GLAPIENTRY
_mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj);
extern GLboolean GLAPIENTRY
diff --git a/mesalib/src/mesa/main/texcompress.c b/mesalib/src/mesa/main/texcompress.c index d820ae927..59603e81e 100644 --- a/mesalib/src/mesa/main/texcompress.c +++ b/mesalib/src/mesa/main/texcompress.c @@ -1,288 +1,288 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.1 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * Copyright (c) 2008 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file texcompress.c - * Helper functions for texture compression. - */ - - -#include "glheader.h" -#include "imports.h" -#include "colormac.h" -#include "formats.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "texcompress.h" - - -/** - * Return list of (and count of) all specific texture compression - * formats that are supported. - * - * \param ctx the GL context - * \param formats the resulting format list (may be NULL). - * \param all if true return all formats, even those with some kind - * of restrictions/limitations (See GL_ARB_texture_compression - * spec for more info). - * - * \return number of formats. - */ -GLuint -_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats, GLboolean all) -{ - GLuint n = 0; - if (ctx->Extensions.TDFX_texture_compression_FXT1) { - if (formats) { - formats[n++] = GL_COMPRESSED_RGB_FXT1_3DFX; - formats[n++] = GL_COMPRESSED_RGBA_FXT1_3DFX; - } - else { - n += 2; - } - } - /* don't return RGTC - ARB_texture_compression_rgtc query 19 */ - if (ctx->Extensions.EXT_texture_compression_s3tc) { - if (formats) { - formats[n++] = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; - /* This format has some restrictions/limitations and so should - * not be returned via the GL_COMPRESSED_TEXTURE_FORMATS query. - * Specifically, all transparent pixels become black. NVIDIA - * omits this format too. - */ - if (all) - formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; - formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; - formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; - } - else { - n += 3; - if (all) - n += 1; - } - } - if (ctx->Extensions.S3_s3tc) { - if (formats) { - formats[n++] = GL_RGB_S3TC; - formats[n++] = GL_RGB4_S3TC; - formats[n++] = GL_RGBA_S3TC; - formats[n++] = GL_RGBA4_S3TC; - } - else { - n += 4; - } - } -#if FEATURE_EXT_texture_sRGB - if (ctx->Extensions.EXT_texture_sRGB) { - if (formats) { - formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT; - formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT; - } - else { - n += 4; - } - } -#endif /* FEATURE_EXT_texture_sRGB */ - return n; - -#if FEATURE_ES1 || FEATURE_ES2 - if (formats) { - formats[n++] = GL_PALETTE4_RGB8_OES; - formats[n++] = GL_PALETTE4_RGBA8_OES; - formats[n++] = GL_PALETTE4_R5_G6_B5_OES; - formats[n++] = GL_PALETTE4_RGBA4_OES; - formats[n++] = GL_PALETTE4_RGB5_A1_OES; - formats[n++] = GL_PALETTE8_RGB8_OES; - formats[n++] = GL_PALETTE8_RGBA8_OES; - formats[n++] = GL_PALETTE8_R5_G6_B5_OES; - formats[n++] = GL_PALETTE8_RGBA4_OES; - formats[n++] = GL_PALETTE8_RGB5_A1_OES; - } - else { - n += 10; - } -#endif -} - - -/** - * Convert a compressed MESA_FORMAT_x to a GLenum. - */ -gl_format -_mesa_glenum_to_compressed_format(GLenum format) -{ - switch (format) { - case GL_COMPRESSED_RGB_FXT1_3DFX: - return MESA_FORMAT_RGB_FXT1; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - return MESA_FORMAT_RGBA_FXT1; - - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - case GL_RGB_S3TC: - return MESA_FORMAT_RGB_DXT1; - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - case GL_RGB4_S3TC: - return MESA_FORMAT_RGBA_DXT1; - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - case GL_RGBA_S3TC: - return MESA_FORMAT_RGBA_DXT3; - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - case GL_RGBA4_S3TC: - return MESA_FORMAT_RGBA_DXT5; - - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - return MESA_FORMAT_SRGB_DXT1; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - return MESA_FORMAT_SRGBA_DXT1; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - return MESA_FORMAT_SRGBA_DXT3; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - return MESA_FORMAT_SRGBA_DXT5; - - case GL_COMPRESSED_RED_RGTC1: - return MESA_FORMAT_RED_RGTC1; - case GL_COMPRESSED_SIGNED_RED_RGTC1: - return MESA_FORMAT_SIGNED_RED_RGTC1; - case GL_COMPRESSED_RG_RGTC2: - return MESA_FORMAT_RG_RGTC2; - case GL_COMPRESSED_SIGNED_RG_RGTC2: - return MESA_FORMAT_SIGNED_RG_RGTC2; - - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - return MESA_FORMAT_L_LATC1; - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - return MESA_FORMAT_SIGNED_L_LATC1; - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - return MESA_FORMAT_LA_LATC2; - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - return MESA_FORMAT_SIGNED_LA_LATC2; - - default: - return MESA_FORMAT_NONE; - } -} - - -/** - * Given a compressed MESA_FORMAT_x value, return the corresponding - * GLenum for that format. - * This is needed for glGetTexLevelParameter(GL_TEXTURE_INTERNAL_FORMAT) - * which must return the specific texture format used when the user might - * have originally specified a generic compressed format in their - * glTexImage2D() call. - * For non-compressed textures, we always return the user-specified - * internal format unchanged. - */ -GLenum -_mesa_compressed_format_to_glenum(struct gl_context *ctx, GLuint mesaFormat) -{ - switch (mesaFormat) { -#if FEATURE_texture_fxt1 - case MESA_FORMAT_RGB_FXT1: - return GL_COMPRESSED_RGB_FXT1_3DFX; - case MESA_FORMAT_RGBA_FXT1: - return GL_COMPRESSED_RGBA_FXT1_3DFX; -#endif -#if FEATURE_texture_s3tc - case MESA_FORMAT_RGB_DXT1: - return GL_COMPRESSED_RGB_S3TC_DXT1_EXT; - case MESA_FORMAT_RGBA_DXT1: - return GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; - case MESA_FORMAT_RGBA_DXT3: - return GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; - case MESA_FORMAT_RGBA_DXT5: - return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB_DXT1: - return GL_COMPRESSED_SRGB_S3TC_DXT1_EXT; - case MESA_FORMAT_SRGBA_DXT1: - return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT; - case MESA_FORMAT_SRGBA_DXT3: - return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT; - case MESA_FORMAT_SRGBA_DXT5: - return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT; -#endif -#endif - - case MESA_FORMAT_RED_RGTC1: - return GL_COMPRESSED_RED_RGTC1; - case MESA_FORMAT_SIGNED_RED_RGTC1: - return GL_COMPRESSED_SIGNED_RED_RGTC1; - case MESA_FORMAT_RG_RGTC2: - return GL_COMPRESSED_RG_RGTC2; - case MESA_FORMAT_SIGNED_RG_RGTC2: - return GL_COMPRESSED_SIGNED_RG_RGTC2; - - case MESA_FORMAT_L_LATC1: - return GL_COMPRESSED_LUMINANCE_LATC1_EXT; - case MESA_FORMAT_SIGNED_L_LATC1: - return GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT; - case MESA_FORMAT_LA_LATC2: - return GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT; - case MESA_FORMAT_SIGNED_LA_LATC2: - return GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT; - - default: - _mesa_problem(ctx, "Unexpected mesa texture format in" - " _mesa_compressed_format_to_glenum()"); - return 0; - } -} - - -/* - * Return the address of the pixel at (col, row, img) in a - * compressed texture image. - * \param col, row, img - image position (3D), should be a multiple of the - * format's block size. - * \param format - compressed image format - * \param width - image width (stride) in pixels - * \param image - the image address - * \return address of pixel at (row, col, img) - */ -GLubyte * -_mesa_compressed_image_address(GLint col, GLint row, GLint img, - gl_format mesaFormat, - GLsizei width, const GLubyte *image) -{ - /* XXX only 2D images implemented, not 3D */ - const GLuint blockSize = _mesa_get_format_bytes(mesaFormat); - GLuint bw, bh; - GLint offset; - - _mesa_get_format_block_size(mesaFormat, &bw, &bh); - - ASSERT(col % bw == 0); - ASSERT(row % bh == 0); - - offset = ((width + bw - 1) / bw) * (row / bh) + col / bw; - offset *= blockSize; - - return (GLubyte *) image + offset; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texcompress.c
+ * Helper functions for texture compression.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "colormac.h"
+#include "formats.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "texcompress.h"
+
+
+/**
+ * Return list of (and count of) all specific texture compression
+ * formats that are supported.
+ *
+ * \param ctx the GL context
+ * \param formats the resulting format list (may be NULL).
+ * \param all if true return all formats, even those with some kind
+ * of restrictions/limitations (See GL_ARB_texture_compression
+ * spec for more info).
+ *
+ * \return number of formats.
+ */
+GLuint
+_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats, GLboolean all)
+{
+ GLuint n = 0;
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ if (formats) {
+ formats[n++] = GL_COMPRESSED_RGB_FXT1_3DFX;
+ formats[n++] = GL_COMPRESSED_RGBA_FXT1_3DFX;
+ }
+ else {
+ n += 2;
+ }
+ }
+ /* don't return RGTC - ARB_texture_compression_rgtc query 19 */
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ if (formats) {
+ formats[n++] = GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
+ /* This format has some restrictions/limitations and so should
+ * not be returned via the GL_COMPRESSED_TEXTURE_FORMATS query.
+ * Specifically, all transparent pixels become black. NVIDIA
+ * omits this format too.
+ */
+ if (all)
+ formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+ formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
+ formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
+ }
+ else {
+ n += 3;
+ if (all)
+ n += 1;
+ }
+ }
+ if (ctx->Extensions.S3_s3tc) {
+ if (formats) {
+ formats[n++] = GL_RGB_S3TC;
+ formats[n++] = GL_RGB4_S3TC;
+ formats[n++] = GL_RGBA_S3TC;
+ formats[n++] = GL_RGBA4_S3TC;
+ }
+ else {
+ n += 4;
+ }
+ }
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ if (formats) {
+ formats[n++] = GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
+ formats[n++] = GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
+ }
+ else {
+ n += 4;
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+ return n;
+
+#if FEATURE_ES1 || FEATURE_ES2
+ if (formats) {
+ formats[n++] = GL_PALETTE4_RGB8_OES;
+ formats[n++] = GL_PALETTE4_RGBA8_OES;
+ formats[n++] = GL_PALETTE4_R5_G6_B5_OES;
+ formats[n++] = GL_PALETTE4_RGBA4_OES;
+ formats[n++] = GL_PALETTE4_RGB5_A1_OES;
+ formats[n++] = GL_PALETTE8_RGB8_OES;
+ formats[n++] = GL_PALETTE8_RGBA8_OES;
+ formats[n++] = GL_PALETTE8_R5_G6_B5_OES;
+ formats[n++] = GL_PALETTE8_RGBA4_OES;
+ formats[n++] = GL_PALETTE8_RGB5_A1_OES;
+ }
+ else {
+ n += 10;
+ }
+#endif
+}
+
+
+/**
+ * Convert a compressed MESA_FORMAT_x to a GLenum.
+ */
+gl_format
+_mesa_glenum_to_compressed_format(GLenum format)
+{
+ switch (format) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return MESA_FORMAT_RGB_FXT1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return MESA_FORMAT_RGBA_FXT1;
+
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_RGB_S3TC:
+ return MESA_FORMAT_RGB_DXT1;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_RGB4_S3TC:
+ return MESA_FORMAT_RGBA_DXT1;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_RGBA_S3TC:
+ return MESA_FORMAT_RGBA_DXT3;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_RGBA4_S3TC:
+ return MESA_FORMAT_RGBA_DXT5;
+
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return MESA_FORMAT_SRGB_DXT1;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ return MESA_FORMAT_SRGBA_DXT1;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ return MESA_FORMAT_SRGBA_DXT3;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return MESA_FORMAT_SRGBA_DXT5;
+
+ case GL_COMPRESSED_RED_RGTC1:
+ return MESA_FORMAT_RED_RGTC1;
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ return MESA_FORMAT_SIGNED_RED_RGTC1;
+ case GL_COMPRESSED_RG_RGTC2:
+ return MESA_FORMAT_RG_RGTC2;
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return MESA_FORMAT_SIGNED_RG_RGTC2;
+
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ return MESA_FORMAT_L_LATC1;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ return MESA_FORMAT_SIGNED_L_LATC1;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return MESA_FORMAT_LA_LATC2;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return MESA_FORMAT_SIGNED_LA_LATC2;
+
+ default:
+ return MESA_FORMAT_NONE;
+ }
+}
+
+
+/**
+ * Given a compressed MESA_FORMAT_x value, return the corresponding
+ * GLenum for that format.
+ * This is needed for glGetTexLevelParameter(GL_TEXTURE_INTERNAL_FORMAT)
+ * which must return the specific texture format used when the user might
+ * have originally specified a generic compressed format in their
+ * glTexImage2D() call.
+ * For non-compressed textures, we always return the user-specified
+ * internal format unchanged.
+ */
+GLenum
+_mesa_compressed_format_to_glenum(struct gl_context *ctx, GLuint mesaFormat)
+{
+ switch (mesaFormat) {
+#if FEATURE_texture_fxt1
+ case MESA_FORMAT_RGB_FXT1:
+ return GL_COMPRESSED_RGB_FXT1_3DFX;
+ case MESA_FORMAT_RGBA_FXT1:
+ return GL_COMPRESSED_RGBA_FXT1_3DFX;
+#endif
+#if FEATURE_texture_s3tc
+ case MESA_FORMAT_RGB_DXT1:
+ return GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
+ case MESA_FORMAT_RGBA_DXT1:
+ return GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+ case MESA_FORMAT_RGBA_DXT3:
+ return GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
+ case MESA_FORMAT_RGBA_DXT5:
+ return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ return GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
+ case MESA_FORMAT_SRGBA_DXT1:
+ return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
+ case MESA_FORMAT_SRGBA_DXT3:
+ return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
+ case MESA_FORMAT_SRGBA_DXT5:
+ return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
+#endif
+#endif
+
+ case MESA_FORMAT_RED_RGTC1:
+ return GL_COMPRESSED_RED_RGTC1;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ return GL_COMPRESSED_SIGNED_RED_RGTC1;
+ case MESA_FORMAT_RG_RGTC2:
+ return GL_COMPRESSED_RG_RGTC2;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ return GL_COMPRESSED_SIGNED_RG_RGTC2;
+
+ case MESA_FORMAT_L_LATC1:
+ return GL_COMPRESSED_LUMINANCE_LATC1_EXT;
+ case MESA_FORMAT_SIGNED_L_LATC1:
+ return GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT;
+ case MESA_FORMAT_LA_LATC2:
+ return GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT;
+ case MESA_FORMAT_SIGNED_LA_LATC2:
+ return GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT;
+
+ default:
+ _mesa_problem(ctx, "Unexpected mesa texture format in"
+ " _mesa_compressed_format_to_glenum()");
+ return 0;
+ }
+}
+
+
+/*
+ * Return the address of the pixel at (col, row, img) in a
+ * compressed texture image.
+ * \param col, row, img - image position (3D), should be a multiple of the
+ * format's block size.
+ * \param format - compressed image format
+ * \param width - image width (stride) in pixels
+ * \param image - the image address
+ * \return address of pixel at (row, col, img)
+ */
+GLubyte *
+_mesa_compressed_image_address(GLint col, GLint row, GLint img,
+ gl_format mesaFormat,
+ GLsizei width, const GLubyte *image)
+{
+ /* XXX only 2D images implemented, not 3D */
+ const GLuint blockSize = _mesa_get_format_bytes(mesaFormat);
+ GLuint bw, bh;
+ GLint offset;
+
+ _mesa_get_format_block_size(mesaFormat, &bw, &bh);
+
+ ASSERT(col % bw == 0);
+ ASSERT(row % bh == 0);
+
+ offset = ((width + bw - 1) / bw) * (row / bh) + col / bw;
+ offset *= blockSize;
+
+ return (GLubyte *) image + offset;
+}
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.c b/mesalib/src/mesa/main/texcompress_rgtc.c index c50df19c5..60146d09b 100644 --- a/mesalib/src/mesa/main/texcompress_rgtc.c +++ b/mesalib/src/mesa/main/texcompress_rgtc.c @@ -1,460 +1,460 @@ -/* - * Copyright (C) 2011 Red Hat Inc. - * - * block compression parts are: - * Copyright (C) 2004 Roland Scheidegger All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Author: - * Dave Airlie - */ - -/** - * \file texcompress_rgtc.c - * GL_EXT_texture_compression_rgtc support. - */ - - -#include "glheader.h" -#include "imports.h" -#include "colormac.h" -#include "image.h" -#include "macros.h" -#include "mfeatures.h" -#include "mipmap.h" -#include "texcompress.h" -#include "texcompress_rgtc.h" -#include "texstore.h" - -#define RGTC_DEBUG 0 - -static void unsigned_encode_rgtc_chan(GLubyte *blkaddr, GLubyte srccolors[4][4], - GLint numxpixels, GLint numypixels); -static void signed_encode_rgtc_chan(GLbyte *blkaddr, GLbyte srccolors[4][4], - GLint numxpixels, GLint numypixels); - -static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata, - unsigned i, unsigned j, GLubyte *value, unsigned comps); - -static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata, - unsigned i, unsigned j, GLbyte *value, unsigned comps); - -static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr, - GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps) -{ - GLubyte i, j; - const GLchan *curaddr; - for (j = 0; j < numypixels; j++) { - curaddr = srcaddr + j * srcRowStride * comps; - for (i = 0; i < numxpixels; i++) { - srcpixels[j][i] = *curaddr / (CHAN_MAX / 255); - curaddr += comps; - } - } -} - -static void extractsrc_s( GLbyte srcpixels[4][4], const GLfloat *srcaddr, - GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps) -{ - GLubyte i, j; - const GLfloat *curaddr; - for (j = 0; j < numypixels; j++) { - curaddr = srcaddr + j * srcRowStride * comps; - for (i = 0; i < numxpixels; i++) { - srcpixels[j][i] = FLOAT_TO_BYTE_TEX(*curaddr); - curaddr += comps; - } - } -} - - -GLboolean -_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS) -{ - GLubyte *dst; - const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */ - const GLchan *tempImage = NULL; - int i, j; - int numxpixels, numypixels; - const GLchan *srcaddr; - GLubyte srcpixels[4][4]; - GLubyte *blkaddr; - GLint dstRowDiff; - ASSERT(dstFormat == MESA_FORMAT_RED_RGTC1 || - dstFormat == MESA_FORMAT_L_LATC1); - ASSERT(dstXoffset % 4 == 0); - ASSERT(dstYoffset % 4 == 0); - ASSERT(dstZoffset % 4 == 0); - (void) dstZoffset; - (void) dstImageOffsets; - - - tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - _mesa_get_format_base_format(dstFormat), - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - if (!tempImage) - return GL_FALSE; /* out of memory */ - - dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0, - dstFormat, - texWidth, (GLubyte *) dstAddr); - - blkaddr = dst; - dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0; - for (j = 0; j < srcHeight; j+=4) { - if (srcHeight > j + 3) numypixels = 4; - else numypixels = srcHeight - j; - srcaddr = tempImage + j * srcWidth; - for (i = 0; i < srcWidth; i += 4) { - if (srcWidth > i + 3) numxpixels = 4; - else numxpixels = srcWidth - i; - extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1); - unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - srcaddr += numxpixels; - blkaddr += 8; - } - blkaddr += dstRowDiff; - } - if (tempImage) - free((void *) tempImage); - - return GL_TRUE; -} - -GLboolean -_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS) -{ - GLbyte *dst; - const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */ - const GLfloat *tempImage = NULL; - int i, j; - int numxpixels, numypixels; - const GLfloat *srcaddr; - GLbyte srcpixels[4][4]; - GLbyte *blkaddr; - GLint dstRowDiff; - ASSERT(dstFormat == MESA_FORMAT_SIGNED_RED_RGTC1 || - dstFormat == MESA_FORMAT_SIGNED_L_LATC1); - ASSERT(dstXoffset % 4 == 0); - ASSERT(dstYoffset % 4 == 0); - ASSERT(dstZoffset % 4 == 0); - (void) dstZoffset; - (void) dstImageOffsets; - - tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - _mesa_get_format_base_format(dstFormat), - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, 0x0); - if (!tempImage) - return GL_FALSE; /* out of memory */ - - dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0, - dstFormat, - texWidth, (GLubyte *) dstAddr); - - blkaddr = dst; - dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0; - for (j = 0; j < srcHeight; j+=4) { - if (srcHeight > j + 3) numypixels = 4; - else numypixels = srcHeight - j; - srcaddr = tempImage + j * srcWidth; - for (i = 0; i < srcWidth; i += 4) { - if (srcWidth > i + 3) numxpixels = 4; - else numxpixels = srcWidth - i; - extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1); - signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - srcaddr += numxpixels; - blkaddr += 8; - } - blkaddr += dstRowDiff; - } - if (tempImage) - free((void *) tempImage); - - return GL_TRUE; -} - -GLboolean -_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS) -{ - GLubyte *dst; - const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */ - const GLchan *tempImage = NULL; - int i, j; - int numxpixels, numypixels; - const GLchan *srcaddr; - GLubyte srcpixels[4][4]; - GLubyte *blkaddr; - GLint dstRowDiff; - - ASSERT(dstFormat == MESA_FORMAT_RG_RGTC2 || - dstFormat == MESA_FORMAT_LA_LATC2); - ASSERT(dstXoffset % 4 == 0); - ASSERT(dstYoffset % 4 == 0); - ASSERT(dstZoffset % 4 == 0); - (void) dstZoffset; - (void) dstImageOffsets; - - tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - _mesa_get_format_base_format(dstFormat), - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - if (!tempImage) - return GL_FALSE; /* out of memory */ - - dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0, - dstFormat, - texWidth, (GLubyte *) dstAddr); - - blkaddr = dst; - dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0; - for (j = 0; j < srcHeight; j+=4) { - if (srcHeight > j + 3) numypixels = 4; - else numypixels = srcHeight - j; - srcaddr = tempImage + j * srcWidth * 2; - for (i = 0; i < srcWidth; i += 4) { - if (srcWidth > i + 3) numxpixels = 4; - else numxpixels = srcWidth - i; - extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2); - unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - - blkaddr += 8; - extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2); - unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - - blkaddr += 8; - - srcaddr += numxpixels * 2; - } - blkaddr += dstRowDiff; - } - if (tempImage) - free((void *) tempImage); - - return GL_TRUE; -} - -GLboolean -_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS) -{ - GLbyte *dst; - const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */ - const GLfloat *tempImage = NULL; - int i, j; - int numxpixels, numypixels; - const GLfloat *srcaddr; - GLbyte srcpixels[4][4]; - GLbyte *blkaddr; - GLint dstRowDiff; - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG_RGTC2 || - dstFormat == MESA_FORMAT_SIGNED_LA_LATC2); - ASSERT(dstXoffset % 4 == 0); - ASSERT(dstYoffset % 4 == 0); - ASSERT(dstZoffset % 4 == 0); - (void) dstZoffset; - (void) dstImageOffsets; - - tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - _mesa_get_format_base_format(dstFormat), - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, 0x0); - if (!tempImage) - return GL_FALSE; /* out of memory */ - - dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0, - dstFormat, - texWidth, (GLubyte *) dstAddr); - - blkaddr = dst; - dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0; - for (j = 0; j < srcHeight; j += 4) { - if (srcHeight > j + 3) numypixels = 4; - else numypixels = srcHeight - j; - srcaddr = tempImage + j * srcWidth * 2; - for (i = 0; i < srcWidth; i += 4) { - if (srcWidth > i + 3) numxpixels = 4; - else numxpixels = srcWidth - i; - - extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2); - signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - blkaddr += 8; - - extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2); - signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels); - blkaddr += 8; - - srcaddr += numxpixels * 2; - - } - blkaddr += dstRowDiff; - } - if (tempImage) - free((void *) tempImage); - - return GL_TRUE; -} - -void -_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLubyte red; - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data), - i, j, &red, 1); - texel[RCOMP] = UBYTE_TO_FLOAT(red); - texel[GCOMP] = 0.0; - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLbyte red; - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data), - i, j, &red, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX(red); - texel[GCOMP] = 0.0; - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLubyte red, green; - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data), - i, j, &red, 2); - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8, - i, j, &green, 2); - texel[RCOMP] = UBYTE_TO_FLOAT(red); - texel[GCOMP] = UBYTE_TO_FLOAT(green); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLbyte red, green; - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data), - i, j, &red, 2); - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8, - i, j, &green, 2); - texel[RCOMP] = BYTE_TO_FLOAT_TEX(red); - texel[GCOMP] = BYTE_TO_FLOAT_TEX(green); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLubyte red; - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data), - i, j, &red, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT(red); - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLbyte red; - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data), - i, j, &red, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = BYTE_TO_FLOAT_TEX(red); - texel[ACOMP] = 1.0; -} - -void -_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLubyte red, green; - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data), - i, j, &red, 2); - unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8, - i, j, &green, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT(red); - texel[ACOMP] = UBYTE_TO_FLOAT(green); -} - -void -_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - GLbyte red, green; - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data), - i, j, &red, 2); - signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8, - i, j, &green, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = BYTE_TO_FLOAT_TEX(red); - texel[ACOMP] = BYTE_TO_FLOAT_TEX(green); -} - -#define TAG(x) unsigned_##x - -#define TYPE GLubyte -#define T_MIN 0 -#define T_MAX 0xff - -#include "texcompress_rgtc_tmp.h" - -#undef TAG -#undef TYPE -#undef T_MIN -#undef T_MAX - -#define TAG(x) signed_##x -#define TYPE GLbyte -#define T_MIN (GLbyte)-128 -#define T_MAX (GLbyte)127 - -#include "texcompress_rgtc_tmp.h" - -#undef TAG -#undef TYPE -#undef T_MIN -#undef T_MAX +/*
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * block compression parts are:
+ * Copyright (C) 2004 Roland Scheidegger All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author:
+ * Dave Airlie
+ */
+
+/**
+ * \file texcompress_rgtc.c
+ * GL_EXT_texture_compression_rgtc support.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "colormac.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mipmap.h"
+#include "texcompress.h"
+#include "texcompress_rgtc.h"
+#include "texstore.h"
+
+#define RGTC_DEBUG 0
+
+static void unsigned_encode_rgtc_chan(GLubyte *blkaddr, GLubyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels);
+static void signed_encode_rgtc_chan(GLbyte *blkaddr, GLbyte srccolors[4][4],
+ GLint numxpixels, GLint numypixels);
+
+static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata,
+ unsigned i, unsigned j, GLubyte *value, unsigned comps);
+
+static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata,
+ unsigned i, unsigned j, GLbyte *value, unsigned comps);
+
+static void extractsrc_u( GLubyte srcpixels[4][4], const GLchan *srcaddr,
+ GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+ GLubyte i, j;
+ const GLchan *curaddr;
+ for (j = 0; j < numypixels; j++) {
+ curaddr = srcaddr + j * srcRowStride * comps;
+ for (i = 0; i < numxpixels; i++) {
+ srcpixels[j][i] = *curaddr / (CHAN_MAX / 255);
+ curaddr += comps;
+ }
+ }
+}
+
+static void extractsrc_s( GLbyte srcpixels[4][4], const GLfloat *srcaddr,
+ GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps)
+{
+ GLubyte i, j;
+ const GLfloat *curaddr;
+ for (j = 0; j < numypixels; j++) {
+ curaddr = srcaddr + j * srcRowStride * comps;
+ for (i = 0; i < numxpixels; i++) {
+ srcpixels[j][i] = FLOAT_TO_BYTE_TEX(*curaddr);
+ curaddr += comps;
+ }
+ }
+}
+
+
+GLboolean
+_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
+{
+ GLubyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+ const GLchan *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLchan *srcaddr;
+ GLubyte srcpixels[4][4];
+ GLubyte *blkaddr;
+ GLint dstRowDiff;
+ ASSERT(dstFormat == MESA_FORMAT_RED_RGTC1 ||
+ dstFormat == MESA_FORMAT_L_LATC1);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+
+ tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+ unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ srcaddr += numxpixels;
+ blkaddr += 8;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS)
+{
+ GLbyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 8; /* a bit of a hack */
+ const GLfloat *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLfloat *srcaddr;
+ GLbyte srcpixels[4][4];
+ GLbyte *blkaddr;
+ GLint dstRowDiff;
+ ASSERT(dstFormat == MESA_FORMAT_SIGNED_RED_RGTC1 ||
+ dstFormat == MESA_FORMAT_SIGNED_L_LATC1);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking, 0x0);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1);
+ signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ srcaddr += numxpixels;
+ blkaddr += 8;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
+{
+ GLubyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+ const GLchan *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLchan *srcaddr;
+ GLubyte srcpixels[4][4];
+ GLubyte *blkaddr;
+ GLint dstRowDiff;
+
+ ASSERT(dstFormat == MESA_FORMAT_RG_RGTC2 ||
+ dstFormat == MESA_FORMAT_LA_LATC2);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ for (j = 0; j < srcHeight; j+=4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth * 2;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+ extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+ unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+
+ blkaddr += 8;
+ extractsrc_u(srcpixels, (GLchan *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+ unsigned_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+
+ blkaddr += 8;
+
+ srcaddr += numxpixels * 2;
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
+{
+ GLbyte *dst;
+ const GLint texWidth = dstRowStride * 4 / 16; /* a bit of a hack */
+ const GLfloat *tempImage = NULL;
+ int i, j;
+ int numxpixels, numypixels;
+ const GLfloat *srcaddr;
+ GLbyte srcpixels[4][4];
+ GLbyte *blkaddr;
+ GLint dstRowDiff;
+
+ ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG_RGTC2 ||
+ dstFormat == MESA_FORMAT_SIGNED_LA_LATC2);
+ ASSERT(dstXoffset % 4 == 0);
+ ASSERT(dstYoffset % 4 == 0);
+ ASSERT(dstZoffset % 4 == 0);
+ (void) dstZoffset;
+ (void) dstImageOffsets;
+
+ tempImage = _mesa_make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ _mesa_get_format_base_format(dstFormat),
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking, 0x0);
+ if (!tempImage)
+ return GL_FALSE; /* out of memory */
+
+ dst = (GLbyte *)_mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
+ dstFormat,
+ texWidth, (GLubyte *) dstAddr);
+
+ blkaddr = dst;
+ dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ for (j = 0; j < srcHeight; j += 4) {
+ if (srcHeight > j + 3) numypixels = 4;
+ else numypixels = srcHeight - j;
+ srcaddr = tempImage + j * srcWidth * 2;
+ for (i = 0; i < srcWidth; i += 4) {
+ if (srcWidth > i + 3) numxpixels = 4;
+ else numxpixels = srcWidth - i;
+
+ extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2);
+ signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ blkaddr += 8;
+
+ extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2);
+ signed_encode_rgtc_chan(blkaddr, srcpixels, numxpixels, numypixels);
+ blkaddr += 8;
+
+ srcaddr += numxpixels * 2;
+
+ }
+ blkaddr += dstRowDiff;
+ }
+ if (tempImage)
+ free((void *) tempImage);
+
+ return GL_TRUE;
+}
+
+void
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte red;
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] = UBYTE_TO_FLOAT(red);
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red;
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte red, green;
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 2);
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] = UBYTE_TO_FLOAT(red);
+ texel[GCOMP] = UBYTE_TO_FLOAT(green);
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red, green;
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 2);
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[GCOMP] = BYTE_TO_FLOAT_TEX(green);
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte red;
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = UBYTE_TO_FLOAT(red);
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red;
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 1);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[ACOMP] = 1.0;
+}
+
+void
+_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLubyte red, green;
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data),
+ i, j, &red, 2);
+ unsigned_fetch_texel_rgtc(texImage->RowStride, (GLubyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = UBYTE_TO_FLOAT(red);
+ texel[ACOMP] = UBYTE_TO_FLOAT(green);
+}
+
+void
+_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ GLbyte red, green;
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data),
+ i, j, &red, 2);
+ signed_fetch_texel_rgtc(texImage->RowStride, (GLbyte *)(texImage->Data) + 8,
+ i, j, &green, 2);
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = BYTE_TO_FLOAT_TEX(red);
+ texel[ACOMP] = BYTE_TO_FLOAT_TEX(green);
+}
+
+#define TAG(x) unsigned_##x
+
+#define TYPE GLubyte
+#define T_MIN 0
+#define T_MAX 0xff
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
+
+#define TAG(x) signed_##x
+#define TYPE GLbyte
+#define T_MIN (GLbyte)-128
+#define T_MAX (GLbyte)127
+
+#include "texcompress_rgtc_tmp.h"
+
+#undef TAG
+#undef TYPE
+#undef T_MIN
+#undef T_MAX
diff --git a/mesalib/src/mesa/main/texcompress_rgtc.h b/mesalib/src/mesa/main/texcompress_rgtc.h index 18766770d..a64ef9968 100644 --- a/mesalib/src/mesa/main/texcompress_rgtc.h +++ b/mesalib/src/mesa/main/texcompress_rgtc.h @@ -1,77 +1,77 @@ -/* - * Copyright (C) 2011 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#ifndef TEXCOMPRESS_RGTC_H -#define TEXCOMPRESS_RGTC_H - -#include "glheader.h" -#include "mfeatures.h" -#include "texstore.h" - -struct gl_texture_image; - -extern GLboolean -_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS); - -extern GLboolean -_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS); - -extern GLboolean -_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS); - -extern GLboolean -_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS); - -extern void -_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -extern void -_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel); - -#endif +/*
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef TEXCOMPRESS_RGTC_H
+#define TEXCOMPRESS_RGTC_H
+
+#include "glheader.h"
+#include "mfeatures.h"
+#include "texstore.h"
+
+struct gl_texture_image;
+
+extern GLboolean
+_mesa_texstore_red_rgtc1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS);
+
+extern GLboolean
+_mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS);
+
+extern void
+_mesa_fetch_texel_2d_f_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_red_rgtc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_rg_rgtc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_l_latc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_l_latc1(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_la_latc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+extern void
+_mesa_fetch_texel_2d_f_signed_la_latc2(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+
+#endif
diff --git a/mesalib/src/mesa/main/texcompress_rgtc_tmp.h b/mesalib/src/mesa/main/texcompress_rgtc_tmp.h index c8bf082a1..335e1f4a1 100644 --- a/mesalib/src/mesa/main/texcompress_rgtc_tmp.h +++ b/mesalib/src/mesa/main/texcompress_rgtc_tmp.h @@ -1,418 +1,418 @@ -/* - * Copyright (C) 2011 Red Hat Inc. - * - * block compression parts are: - * Copyright (C) 2004 Roland Scheidegger All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Author: - * Dave Airlie - */ - -/* included by texcompress_rgtc to define byte/ubyte compressors */ - -static void TAG(fetch_texel_rgtc)(unsigned srcRowStride, const TYPE *pixdata, - unsigned i, unsigned j, TYPE *value, unsigned comps) -{ - TYPE decode; - const TYPE *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps); - const TYPE alpha0 = blksrc[0]; - const TYPE alpha1 = blksrc[1]; - const char bit_pos = ((j&3) * 4 + (i&3)) * 3; - const TYPE acodelow = blksrc[2 + bit_pos / 8]; - const TYPE acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0; - const TYPE code = (acodelow >> (bit_pos & 0x7) | - (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; - - if (code == 0) - decode = alpha0; - else if (code == 1) - decode = alpha1; - else if (alpha0 > alpha1) - decode = ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7); - else if (code < 6) - decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5); - else if (code == 6) - decode = T_MIN; - else - decode = T_MAX; - - *value = decode; -} - -static void TAG(write_rgtc_encoded_channel)(TYPE *blkaddr, - TYPE alphabase1, - TYPE alphabase2, - TYPE alphaenc[16]) -{ - *blkaddr++ = alphabase1; - *blkaddr++ = alphabase2; - *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6); - *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7); - *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5); - *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6); - *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7); - *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5); -} - -static void TAG(encode_rgtc_chan)(TYPE *blkaddr, TYPE srccolors[4][4], - int numxpixels, int numypixels) -{ - TYPE alphabase[2], alphause[2]; - short alphatest[2] = { 0 }; - unsigned int alphablockerror1, alphablockerror2, alphablockerror3; - TYPE i, j, aindex, acutValues[7]; - TYPE alphaenc1[16], alphaenc2[16], alphaenc3[16]; - int alphaabsmin = 0, alphaabsmax = 0; - short alphadist; - - /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */ - alphabase[0] = T_MAX; alphabase[1] = T_MIN; - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if (srccolors[j][i] == T_MIN) - alphaabsmin = 1; - else if (srccolors[j][i] == T_MAX) - alphaabsmax = 1; - else { - if (srccolors[j][i] > alphabase[1]) - alphabase[1] = srccolors[j][i]; - if (srccolors[j][i] < alphabase[0]) - alphabase[0] = srccolors[j][i]; - } - } - } - - - if (((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax)) - || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax)) { /* one color, either max or min */ - /* shortcut here since it is a very common case (and also avoids later problems) */ - /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */ - - *blkaddr++ = srccolors[0][0]; - blkaddr++; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; -#if RGTC_DEBUG - fprintf(stderr, "enc0 used\n"); -#endif - return; - } - - /* find best encoding for alpha0 > alpha1 */ - /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */ - alphablockerror1 = 0x0; - alphablockerror2 = 0xffffffff; - alphablockerror3 = 0xffffffff; - if (alphaabsmin) alphause[0] = T_MIN; - else alphause[0] = alphabase[0]; - if (alphaabsmax) alphause[1] = T_MAX; - else alphause[1] = alphabase[1]; - /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */ - for (aindex = 0; aindex < 7; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14; - } - - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] > acutValues[0]) { - alphaenc1[4*j + i] = 0; - alphadist = srccolors[j][i] - alphause[1]; - } - else if (srccolors[j][i] > acutValues[1]) { - alphaenc1[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7; - } - else if (srccolors[j][i] > acutValues[2]) { - alphaenc1[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7; - } - else if (srccolors[j][i] > acutValues[3]) { - alphaenc1[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7; - } - else if (srccolors[j][i] > acutValues[4]) { - alphaenc1[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7; - } - else if (srccolors[j][i] > acutValues[5]) { - alphaenc1[4*j + i] = 6; - alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7; - } - else if (srccolors[j][i] > acutValues[6]) { - alphaenc1[4*j + i] = 7; - alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7; - } - else { - alphaenc1[4*j + i] = 1; - alphadist = srccolors[j][i] - alphause[0]; - } - alphablockerror1 += alphadist * alphadist; - } - } - -#if RGTC_DEBUG - for (i = 0; i < 16; i++) { - fprintf(stderr, "%d ", alphaenc1[i]); - } - fprintf(stderr, "cutVals "); - for (i = 0; i < 8; i++) { - fprintf(stderr, "%d ", acutValues[i]); - } - fprintf(stderr, "srcVals "); - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - fprintf(stderr, "%d ", srccolors[j][i]); - } - } - fprintf(stderr, "\n"); -#endif - - /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax - are false but try it anyway */ - if (alphablockerror1 >= 32) { - - /* don't bother if encoding is already very good, this condition should also imply - we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */ - alphablockerror2 = 0; - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10; - } - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] == T_MIN) { - alphaenc2[4*j + i] = 6; - alphadist = 0; - } - else if (srccolors[j][i] == T_MAX) { - alphaenc2[4*j + i] = 7; - alphadist = 0; - } - else if (srccolors[j][i] <= acutValues[0]) { - alphaenc2[4*j + i] = 0; - alphadist = srccolors[j][i] - alphabase[0]; - } - else if (srccolors[j][i] <= acutValues[1]) { - alphaenc2[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5; - } - else if (srccolors[j][i] <= acutValues[2]) { - alphaenc2[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5; - } - else if (srccolors[j][i] <= acutValues[3]) { - alphaenc2[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5; - } - else if (srccolors[j][i] <= acutValues[4]) { - alphaenc2[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5; - } - else { - alphaenc2[4*j + i] = 1; - alphadist = srccolors[j][i] - alphabase[1]; - } - alphablockerror2 += alphadist * alphadist; - } - } - - - /* skip this if the error is already very small - this encoding is MUCH better on average than #2 though, but expensive! */ - if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) { - short blockerrlin1 = 0; - short blockerrlin2 = 0; - TYPE nralphainrangelow = 0; - TYPE nralphainrangehigh = 0; - alphatest[0] = T_MAX; - alphatest[1] = T_MIN; - /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */ - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (T_MAX -(alphabase[1] - alphabase[0]) / 28))) - alphatest[1] = srccolors[j][i]; - if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28)) - alphatest[0] = srccolors[j][i]; - } - } - /* shouldn't happen too often, don't really care about those degenerated cases */ - if (alphatest[1] <= alphatest[0]) { - alphatest[0] = T_MIN+1; - alphatest[1] = T_MAX-1; - } - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; - } - - /* find the "average" difference between the alpha values and the next encoded value. - This is then used to calculate new base values. - Should there be some weighting, i.e. those values closer to alphatest[x] have more weight, - since they will see more improvement, and also because the values in the middle are somewhat - likely to get no improvement at all (because the base values might move in different directions)? - OTOH it would mean the values in the middle are even less likely to get an improvement - */ - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if (srccolors[j][i] <= alphatest[0] / 2) { - } - else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { - } - else if (srccolors[j][i] <= acutValues[0]) { - blockerrlin1 += (srccolors[j][i] - alphatest[0]); - nralphainrangelow += 1; - } - else if (srccolors[j][i] <= acutValues[1]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[2]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[3]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[4]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else { - blockerrlin2 += (srccolors[j][i] - alphatest[1]); - nralphainrangehigh += 1; - } - } - } - /* shouldn't happen often, needed to avoid div by zero */ - if (nralphainrangelow == 0) nralphainrangelow = 1; - if (nralphainrangehigh == 0) nralphainrangehigh = 1; - alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow); -#if RGTC_DEBUG - fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow); - fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh); -#endif - /* again shouldn't really happen often... */ - if (alphatest[0] < T_MIN) { - alphatest[0] = T_MIN; - } - alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh); - if (alphatest[1] > T_MAX) { - alphatest[1] = T_MAX; - } - - alphablockerror3 = 0; - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; - } - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] <= alphatest[0] / 2) { - alphaenc3[4*j + i] = 6; - alphadist = srccolors[j][i]; - } - else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { - alphaenc3[4*j + i] = 7; - alphadist = T_MAX - srccolors[j][i]; - } - else if (srccolors[j][i] <= acutValues[0]) { - alphaenc3[4*j + i] = 0; - alphadist = srccolors[j][i] - alphatest[0]; - } - else if (srccolors[j][i] <= acutValues[1]) { - alphaenc3[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5; - } - else if (srccolors[j][i] <= acutValues[2]) { - alphaenc3[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5; - } - else if (srccolors[j][i] <= acutValues[3]) { - alphaenc3[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5; - } - else if (srccolors[j][i] <= acutValues[4]) { - alphaenc3[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5; - } - else { - alphaenc3[4*j + i] = 1; - alphadist = srccolors[j][i] - alphatest[1]; - } - alphablockerror3 += alphadist * alphadist; - } - } - } - } - - /* write the alpha values and encoding back. */ - if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) { -#if RGTC_DEBUG - if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1); - fprintf(stderr,"w1: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphause[1], alphause[0]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, alphause[1], alphause[0], alphaenc1 ); - } - else if (alphablockerror2 <= alphablockerror3) { -#if RGTC_DEBUG - if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2); - fprintf(stderr,"w2: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphabase[0], alphabase[1]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, alphabase[0], alphabase[1], alphaenc2 ); - } - else { -#if RGTC_DEBUG - fprintf(stderr, "enc3 used, error %d\n", alphablockerror3); - fprintf(stderr,"w3: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphatest[0], alphatest[1]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, (TYPE)alphatest[0], (TYPE)alphatest[1], alphaenc3 ); - } -} +/*
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * block compression parts are:
+ * Copyright (C) 2004 Roland Scheidegger All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author:
+ * Dave Airlie
+ */
+
+/* included by texcompress_rgtc to define byte/ubyte compressors */
+
+static void TAG(fetch_texel_rgtc)(unsigned srcRowStride, const TYPE *pixdata,
+ unsigned i, unsigned j, TYPE *value, unsigned comps)
+{
+ TYPE decode;
+ const TYPE *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps);
+ const TYPE alpha0 = blksrc[0];
+ const TYPE alpha1 = blksrc[1];
+ const char bit_pos = ((j&3) * 4 + (i&3)) * 3;
+ const TYPE acodelow = blksrc[2 + bit_pos / 8];
+ const TYPE acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0;
+ const TYPE code = (acodelow >> (bit_pos & 0x7) |
+ (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7;
+
+ if (code == 0)
+ decode = alpha0;
+ else if (code == 1)
+ decode = alpha1;
+ else if (alpha0 > alpha1)
+ decode = ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7);
+ else if (code < 6)
+ decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5);
+ else if (code == 6)
+ decode = T_MIN;
+ else
+ decode = T_MAX;
+
+ *value = decode;
+}
+
+static void TAG(write_rgtc_encoded_channel)(TYPE *blkaddr,
+ TYPE alphabase1,
+ TYPE alphabase2,
+ TYPE alphaenc[16])
+{
+ *blkaddr++ = alphabase1;
+ *blkaddr++ = alphabase2;
+ *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6);
+ *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7);
+ *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5);
+ *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6);
+ *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7);
+ *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5);
+}
+
+static void TAG(encode_rgtc_chan)(TYPE *blkaddr, TYPE srccolors[4][4],
+ int numxpixels, int numypixels)
+{
+ TYPE alphabase[2], alphause[2];
+ short alphatest[2] = { 0 };
+ unsigned int alphablockerror1, alphablockerror2, alphablockerror3;
+ TYPE i, j, aindex, acutValues[7];
+ TYPE alphaenc1[16], alphaenc2[16], alphaenc3[16];
+ int alphaabsmin = 0, alphaabsmax = 0;
+ short alphadist;
+
+ /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */
+ alphabase[0] = T_MAX; alphabase[1] = T_MIN;
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] == T_MIN)
+ alphaabsmin = 1;
+ else if (srccolors[j][i] == T_MAX)
+ alphaabsmax = 1;
+ else {
+ if (srccolors[j][i] > alphabase[1])
+ alphabase[1] = srccolors[j][i];
+ if (srccolors[j][i] < alphabase[0])
+ alphabase[0] = srccolors[j][i];
+ }
+ }
+ }
+
+
+ if (((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax))
+ || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax)) { /* one color, either max or min */
+ /* shortcut here since it is a very common case (and also avoids later problems) */
+ /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */
+
+ *blkaddr++ = srccolors[0][0];
+ blkaddr++;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+ *blkaddr++ = 0;
+#if RGTC_DEBUG
+ fprintf(stderr, "enc0 used\n");
+#endif
+ return;
+ }
+
+ /* find best encoding for alpha0 > alpha1 */
+ /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */
+ alphablockerror1 = 0x0;
+ alphablockerror2 = 0xffffffff;
+ alphablockerror3 = 0xffffffff;
+ if (alphaabsmin) alphause[0] = T_MIN;
+ else alphause[0] = alphabase[0];
+ if (alphaabsmax) alphause[1] = T_MAX;
+ else alphause[1] = alphabase[1];
+ /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */
+ for (aindex = 0; aindex < 7; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14;
+ }
+
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] > acutValues[0]) {
+ alphaenc1[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphause[1];
+ }
+ else if (srccolors[j][i] > acutValues[1]) {
+ alphaenc1[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[2]) {
+ alphaenc1[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[3]) {
+ alphaenc1[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[4]) {
+ alphaenc1[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[5]) {
+ alphaenc1[4*j + i] = 6;
+ alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7;
+ }
+ else if (srccolors[j][i] > acutValues[6]) {
+ alphaenc1[4*j + i] = 7;
+ alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7;
+ }
+ else {
+ alphaenc1[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphause[0];
+ }
+ alphablockerror1 += alphadist * alphadist;
+ }
+ }
+
+#if RGTC_DEBUG
+ for (i = 0; i < 16; i++) {
+ fprintf(stderr, "%d ", alphaenc1[i]);
+ }
+ fprintf(stderr, "cutVals ");
+ for (i = 0; i < 8; i++) {
+ fprintf(stderr, "%d ", acutValues[i]);
+ }
+ fprintf(stderr, "srcVals ");
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ fprintf(stderr, "%d ", srccolors[j][i]);
+ }
+ }
+ fprintf(stderr, "\n");
+#endif
+
+ /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax
+ are false but try it anyway */
+ if (alphablockerror1 >= 32) {
+
+ /* don't bother if encoding is already very good, this condition should also imply
+ we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */
+ alphablockerror2 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] == T_MIN) {
+ alphaenc2[4*j + i] = 6;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] == T_MAX) {
+ alphaenc2[4*j + i] = 7;
+ alphadist = 0;
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc2[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphabase[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc2[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc2[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc2[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc2[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5;
+ }
+ else {
+ alphaenc2[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphabase[1];
+ }
+ alphablockerror2 += alphadist * alphadist;
+ }
+ }
+
+
+ /* skip this if the error is already very small
+ this encoding is MUCH better on average than #2 though, but expensive! */
+ if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) {
+ short blockerrlin1 = 0;
+ short blockerrlin2 = 0;
+ TYPE nralphainrangelow = 0;
+ TYPE nralphainrangehigh = 0;
+ alphatest[0] = T_MAX;
+ alphatest[1] = T_MIN;
+ /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (T_MAX -(alphabase[1] - alphabase[0]) / 28)))
+ alphatest[1] = srccolors[j][i];
+ if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28))
+ alphatest[0] = srccolors[j][i];
+ }
+ }
+ /* shouldn't happen too often, don't really care about those degenerated cases */
+ if (alphatest[1] <= alphatest[0]) {
+ alphatest[0] = T_MIN+1;
+ alphatest[1] = T_MAX-1;
+ }
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+
+ /* find the "average" difference between the alpha values and the next encoded value.
+ This is then used to calculate new base values.
+ Should there be some weighting, i.e. those values closer to alphatest[x] have more weight,
+ since they will see more improvement, and also because the values in the middle are somewhat
+ likely to get no improvement at all (because the base values might move in different directions)?
+ OTOH it would mean the values in the middle are even less likely to get an improvement
+ */
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ }
+ else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) {
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ blockerrlin1 += (srccolors[j][i] - alphatest[0]);
+ nralphainrangelow += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5);
+ nralphainrangelow += 1;
+ nralphainrangehigh += 1;
+ }
+ else {
+ blockerrlin2 += (srccolors[j][i] - alphatest[1]);
+ nralphainrangehigh += 1;
+ }
+ }
+ }
+ /* shouldn't happen often, needed to avoid div by zero */
+ if (nralphainrangelow == 0) nralphainrangelow = 1;
+ if (nralphainrangehigh == 0) nralphainrangehigh = 1;
+ alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow);
+#if RGTC_DEBUG
+ fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow);
+ fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh);
+#endif
+ /* again shouldn't really happen often... */
+ if (alphatest[0] < T_MIN) {
+ alphatest[0] = T_MIN;
+ }
+ alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh);
+ if (alphatest[1] > T_MAX) {
+ alphatest[1] = T_MAX;
+ }
+
+ alphablockerror3 = 0;
+ for (aindex = 0; aindex < 5; aindex++) {
+ /* don't forget here is always rounded down */
+ acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10;
+ }
+ for (j = 0; j < numypixels; j++) {
+ for (i = 0; i < numxpixels; i++) {
+ /* maybe it's overkill to have the most complicated calculation just for the error
+ calculation which we only need to figure out if encoding1 or encoding2 is better... */
+ if (srccolors[j][i] <= alphatest[0] / 2) {
+ alphaenc3[4*j + i] = 6;
+ alphadist = srccolors[j][i];
+ }
+ else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) {
+ alphaenc3[4*j + i] = 7;
+ alphadist = T_MAX - srccolors[j][i];
+ }
+ else if (srccolors[j][i] <= acutValues[0]) {
+ alphaenc3[4*j + i] = 0;
+ alphadist = srccolors[j][i] - alphatest[0];
+ }
+ else if (srccolors[j][i] <= acutValues[1]) {
+ alphaenc3[4*j + i] = 2;
+ alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[2]) {
+ alphaenc3[4*j + i] = 3;
+ alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[3]) {
+ alphaenc3[4*j + i] = 4;
+ alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5;
+ }
+ else if (srccolors[j][i] <= acutValues[4]) {
+ alphaenc3[4*j + i] = 5;
+ alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5;
+ }
+ else {
+ alphaenc3[4*j + i] = 1;
+ alphadist = srccolors[j][i] - alphatest[1];
+ }
+ alphablockerror3 += alphadist * alphadist;
+ }
+ }
+ }
+ }
+
+ /* write the alpha values and encoding back. */
+ if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) {
+#if RGTC_DEBUG
+ if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1);
+ fprintf(stderr,"w1: min %d max %d au0 %d au1 %d\n",
+ T_MIN, T_MAX,
+ alphause[1], alphause[0]);
+#endif
+
+ TAG(write_rgtc_encoded_channel)( blkaddr, alphause[1], alphause[0], alphaenc1 );
+ }
+ else if (alphablockerror2 <= alphablockerror3) {
+#if RGTC_DEBUG
+ if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2);
+ fprintf(stderr,"w2: min %d max %d au0 %d au1 %d\n",
+ T_MIN, T_MAX,
+ alphabase[0], alphabase[1]);
+#endif
+
+ TAG(write_rgtc_encoded_channel)( blkaddr, alphabase[0], alphabase[1], alphaenc2 );
+ }
+ else {
+#if RGTC_DEBUG
+ fprintf(stderr, "enc3 used, error %d\n", alphablockerror3);
+ fprintf(stderr,"w3: min %d max %d au0 %d au1 %d\n",
+ T_MIN, T_MAX,
+ alphatest[0], alphatest[1]);
+#endif
+
+ TAG(write_rgtc_encoded_channel)( blkaddr, (TYPE)alphatest[0], (TYPE)alphatest[1], alphaenc3 );
+ }
+}
diff --git a/mesalib/src/mesa/main/texcompress_s3tc.c b/mesalib/src/mesa/main/texcompress_s3tc.c index 90be6c0a8..479806eca 100644 --- a/mesalib/src/mesa/main/texcompress_s3tc.c +++ b/mesalib/src/mesa/main/texcompress_s3tc.c @@ -50,7 +50,11 @@ #if defined(_WIN32) || defined(WIN32)
+#ifdef _DEBUG
+#define DXTN_LIBNAME "dxtn_dbg.dll"
+#else
#define DXTN_LIBNAME "dxtn.dll"
+#endif
#define RTLD_LAZY 0
#define RTLD_GLOBAL 0
#elif defined(__DJGPP__)
diff --git a/mesalib/src/mesa/main/texfetch.c b/mesalib/src/mesa/main/texfetch.c index 988a7e054..33f8dbba2 100644 --- a/mesalib/src/mesa/main/texfetch.c +++ b/mesalib/src/mesa/main/texfetch.c @@ -1,950 +1,950 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (c) 2009 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file texfetch.c - * - * Texel fetch/store functions - * - * \author Gareth Hughes - */ - - -#include "colormac.h" -#include "macros.h" -#include "texcompress.h" -#include "texcompress_fxt1.h" -#include "texcompress_s3tc.h" -#include "texcompress_rgtc.h" -#include "texfetch.h" -#include "teximage.h" - - -/** - * Convert an 8-bit sRGB value from non-linear space to a - * linear RGB value in [0, 1]. - * Implemented with a 256-entry lookup table. - */ -static INLINE GLfloat -nonlinear_to_linear(GLubyte cs8) -{ - static GLfloat table[256]; - static GLboolean tableReady = GL_FALSE; - if (!tableReady) { - /* compute lookup table now */ - GLuint i; - for (i = 0; i < 256; i++) { - const GLfloat cs = UBYTE_TO_FLOAT(i); - if (cs <= 0.04045) { - table[i] = cs / 12.92f; - } - else { - table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4); - } - } - tableReady = GL_TRUE; - } - return table[cs8]; -} - - - -/* Texel fetch routines for all supported formats - */ -#define DIM 1 -#include "texfetch_tmp.h" - -#define DIM 2 -#include "texfetch_tmp.h" - -#define DIM 3 -#include "texfetch_tmp.h" - -/** - * Null texel fetch function. - * - * Have to have this so the FetchTexel function pointer is never NULL. - */ -static void fetch_null_texelf( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - (void) texImage; (void) i; (void) j; (void) k; - texel[RCOMP] = 0.0; - texel[GCOMP] = 0.0; - texel[BCOMP] = 0.0; - texel[ACOMP] = 0.0; - _mesa_warning(NULL, "fetch_null_texelf() called!"); -} - -static void store_null_texel(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - (void) texImage; - (void) i; - (void) j; - (void) k; - (void) texel; - /* no-op */ -} - - - -/** - * Table to map MESA_FORMAT_ to texel fetch/store funcs. - * XXX this is somewhat temporary. - */ -static struct { - gl_format Name; - FetchTexelFuncF Fetch1D; - FetchTexelFuncF Fetch2D; - FetchTexelFuncF Fetch3D; - StoreTexelFunc StoreTexel; -} -texfetch_funcs[MESA_FORMAT_COUNT] = -{ - { - MESA_FORMAT_NONE, - fetch_null_texelf, - fetch_null_texelf, - fetch_null_texelf, - store_null_texel - }, - - { - MESA_FORMAT_RGBA8888, - fetch_texel_1d_f_rgba8888, - fetch_texel_2d_f_rgba8888, - fetch_texel_3d_f_rgba8888, - store_texel_rgba8888 - }, - { - MESA_FORMAT_RGBA8888_REV, - fetch_texel_1d_f_rgba8888_rev, - fetch_texel_2d_f_rgba8888_rev, - fetch_texel_3d_f_rgba8888_rev, - store_texel_rgba8888_rev - }, - { - MESA_FORMAT_ARGB8888, - fetch_texel_1d_f_argb8888, - fetch_texel_2d_f_argb8888, - fetch_texel_3d_f_argb8888, - store_texel_argb8888 - }, - { - MESA_FORMAT_ARGB8888_REV, - fetch_texel_1d_f_argb8888_rev, - fetch_texel_2d_f_argb8888_rev, - fetch_texel_3d_f_argb8888_rev, - store_texel_argb8888_rev - }, - { - MESA_FORMAT_XRGB8888, - fetch_texel_1d_f_xrgb8888, - fetch_texel_2d_f_xrgb8888, - fetch_texel_3d_f_xrgb8888, - store_texel_xrgb8888 - }, - { - MESA_FORMAT_XRGB8888_REV, - fetch_texel_1d_f_xrgb8888_rev, - fetch_texel_2d_f_xrgb8888_rev, - fetch_texel_3d_f_xrgb8888_rev, - store_texel_xrgb8888_rev, - }, - { - MESA_FORMAT_RGB888, - fetch_texel_1d_f_rgb888, - fetch_texel_2d_f_rgb888, - fetch_texel_3d_f_rgb888, - store_texel_rgb888 - }, - { - MESA_FORMAT_BGR888, - fetch_texel_1d_f_bgr888, - fetch_texel_2d_f_bgr888, - fetch_texel_3d_f_bgr888, - store_texel_bgr888 - }, - { - MESA_FORMAT_RGB565, - fetch_texel_1d_f_rgb565, - fetch_texel_2d_f_rgb565, - fetch_texel_3d_f_rgb565, - store_texel_rgb565 - }, - { - MESA_FORMAT_RGB565_REV, - fetch_texel_1d_f_rgb565_rev, - fetch_texel_2d_f_rgb565_rev, - fetch_texel_3d_f_rgb565_rev, - store_texel_rgb565_rev - }, - { - MESA_FORMAT_ARGB4444, - fetch_texel_1d_f_argb4444, - fetch_texel_2d_f_argb4444, - fetch_texel_3d_f_argb4444, - store_texel_argb4444 - }, - { - MESA_FORMAT_ARGB4444_REV, - fetch_texel_1d_f_argb4444_rev, - fetch_texel_2d_f_argb4444_rev, - fetch_texel_3d_f_argb4444_rev, - store_texel_argb4444_rev - }, - { - MESA_FORMAT_RGBA5551, - fetch_texel_1d_f_rgba5551, - fetch_texel_2d_f_rgba5551, - fetch_texel_3d_f_rgba5551, - store_texel_rgba5551 - }, - { - MESA_FORMAT_ARGB1555, - fetch_texel_1d_f_argb1555, - fetch_texel_2d_f_argb1555, - fetch_texel_3d_f_argb1555, - store_texel_argb1555 - }, - { - MESA_FORMAT_ARGB1555_REV, - fetch_texel_1d_f_argb1555_rev, - fetch_texel_2d_f_argb1555_rev, - fetch_texel_3d_f_argb1555_rev, - store_texel_argb1555_rev - }, - { - MESA_FORMAT_AL44, - fetch_texel_1d_f_al44, - fetch_texel_2d_f_al44, - fetch_texel_3d_f_al44, - store_texel_al44 - }, - { - MESA_FORMAT_AL88, - fetch_texel_1d_f_al88, - fetch_texel_2d_f_al88, - fetch_texel_3d_f_al88, - store_texel_al88 - }, - { - MESA_FORMAT_AL88_REV, - fetch_texel_1d_f_al88_rev, - fetch_texel_2d_f_al88_rev, - fetch_texel_3d_f_al88_rev, - store_texel_al88_rev - }, - { - MESA_FORMAT_AL1616, - fetch_texel_1d_f_al1616, - fetch_texel_2d_f_al1616, - fetch_texel_3d_f_al1616, - store_texel_al1616 - }, - { - MESA_FORMAT_AL1616_REV, - fetch_texel_1d_f_al1616_rev, - fetch_texel_2d_f_al1616_rev, - fetch_texel_3d_f_al1616_rev, - store_texel_al1616_rev - }, - { - MESA_FORMAT_RGB332, - fetch_texel_1d_f_rgb332, - fetch_texel_2d_f_rgb332, - fetch_texel_3d_f_rgb332, - store_texel_rgb332 - }, - { - MESA_FORMAT_A8, - fetch_texel_1d_f_a8, - fetch_texel_2d_f_a8, - fetch_texel_3d_f_a8, - store_texel_a8 - }, - { - MESA_FORMAT_A16, - fetch_texel_1d_f_a16, - fetch_texel_2d_f_a16, - fetch_texel_3d_f_a16, - store_texel_a16 - }, - { - MESA_FORMAT_L8, - fetch_texel_1d_f_l8, - fetch_texel_2d_f_l8, - fetch_texel_3d_f_l8, - store_texel_l8 - }, - { - MESA_FORMAT_L16, - fetch_texel_1d_f_l16, - fetch_texel_2d_f_l16, - fetch_texel_3d_f_l16, - store_texel_l16 - }, - { - MESA_FORMAT_I8, - fetch_texel_1d_f_i8, - fetch_texel_2d_f_i8, - fetch_texel_3d_f_i8, - store_texel_i8 - }, - { - MESA_FORMAT_I16, - fetch_texel_1d_f_i16, - fetch_texel_2d_f_i16, - fetch_texel_3d_f_i16, - store_texel_i16 - }, - { - MESA_FORMAT_CI8, - fetch_texel_1d_f_ci8, - fetch_texel_2d_f_ci8, - fetch_texel_3d_f_ci8, - store_texel_ci8 - }, - { - MESA_FORMAT_YCBCR, - fetch_texel_1d_f_ycbcr, - fetch_texel_2d_f_ycbcr, - fetch_texel_3d_f_ycbcr, - store_texel_ycbcr - }, - { - MESA_FORMAT_YCBCR_REV, - fetch_texel_1d_f_ycbcr_rev, - fetch_texel_2d_f_ycbcr_rev, - fetch_texel_3d_f_ycbcr_rev, - store_texel_ycbcr_rev - }, - { - MESA_FORMAT_R8, - fetch_texel_1d_f_r8, - fetch_texel_2d_f_r8, - fetch_texel_3d_f_r8, - store_texel_r8, - }, - { - MESA_FORMAT_RG88, - fetch_texel_1d_f_rg88, - fetch_texel_2d_f_rg88, - fetch_texel_3d_f_rg88, - store_texel_rg88, - }, - { - MESA_FORMAT_RG88_REV, - fetch_texel_1d_f_rg88_rev, - fetch_texel_2d_f_rg88_rev, - fetch_texel_3d_f_rg88_rev, - store_texel_rg88_rev, - }, - { - MESA_FORMAT_R16, - fetch_texel_1d_f_r16, - fetch_texel_2d_f_r16, - fetch_texel_3d_f_r16, - store_texel_r16, - }, - { - MESA_FORMAT_RG1616, - fetch_texel_1d_f_rg1616, - fetch_texel_2d_f_rg1616, - fetch_texel_3d_f_rg1616, - store_texel_rg1616, - }, - { - MESA_FORMAT_RG1616_REV, - fetch_texel_1d_f_rg1616_rev, - fetch_texel_2d_f_rg1616_rev, - fetch_texel_3d_f_rg1616_rev, - store_texel_rg1616_rev, - }, - { - MESA_FORMAT_ARGB2101010, - fetch_texel_1d_f_argb2101010, - fetch_texel_2d_f_argb2101010, - fetch_texel_3d_f_argb2101010, - store_texel_argb2101010 - }, - { - MESA_FORMAT_Z24_S8, - fetch_texel_1d_f_z24_s8, - fetch_texel_2d_f_z24_s8, - fetch_texel_3d_f_z24_s8, - store_texel_z24_s8 - }, - { - MESA_FORMAT_S8_Z24, - fetch_texel_1d_f_s8_z24, - fetch_texel_2d_f_s8_z24, - fetch_texel_3d_f_s8_z24, - store_texel_s8_z24 - }, - { - MESA_FORMAT_Z16, - fetch_texel_1d_f_z16, - fetch_texel_2d_f_z16, - fetch_texel_3d_f_z16, - store_texel_z16 - }, - { - MESA_FORMAT_X8_Z24, - fetch_texel_1d_f_s8_z24, - fetch_texel_2d_f_s8_z24, - fetch_texel_3d_f_s8_z24, - store_texel_s8_z24 - }, - { - MESA_FORMAT_Z24_X8, - fetch_texel_1d_f_z24_s8, - fetch_texel_2d_f_z24_s8, - fetch_texel_3d_f_z24_s8, - store_texel_z24_s8 - }, - { - MESA_FORMAT_Z32, - fetch_texel_1d_f_z32, - fetch_texel_2d_f_z32, - fetch_texel_3d_f_z32, - store_texel_z32 - }, - { - MESA_FORMAT_S8, - NULL, - NULL, - NULL, - NULL - }, - { - MESA_FORMAT_SRGB8, - fetch_texel_1d_srgb8, - fetch_texel_2d_srgb8, - fetch_texel_3d_srgb8, - store_texel_srgb8 - }, - { - MESA_FORMAT_SRGBA8, - fetch_texel_1d_srgba8, - fetch_texel_2d_srgba8, - fetch_texel_3d_srgba8, - store_texel_srgba8 - }, - { - MESA_FORMAT_SARGB8, - fetch_texel_1d_sargb8, - fetch_texel_2d_sargb8, - fetch_texel_3d_sargb8, - store_texel_sargb8 - }, - { - MESA_FORMAT_SL8, - fetch_texel_1d_sl8, - fetch_texel_2d_sl8, - fetch_texel_3d_sl8, - store_texel_sl8 - }, - { - MESA_FORMAT_SLA8, - fetch_texel_1d_sla8, - fetch_texel_2d_sla8, - fetch_texel_3d_sla8, - store_texel_sla8 - }, - { - MESA_FORMAT_SRGB_DXT1, - NULL, - _mesa_fetch_texel_2d_f_srgb_dxt1, - NULL, - NULL - }, - { - MESA_FORMAT_SRGBA_DXT1, - NULL, - _mesa_fetch_texel_2d_f_srgba_dxt1, - NULL, - NULL - }, - { - MESA_FORMAT_SRGBA_DXT3, - NULL, - _mesa_fetch_texel_2d_f_srgba_dxt3, - NULL, - NULL - }, - { - MESA_FORMAT_SRGBA_DXT5, - NULL, - _mesa_fetch_texel_2d_f_srgba_dxt5, - NULL, - NULL - }, - - { - MESA_FORMAT_RGB_FXT1, - NULL, - _mesa_fetch_texel_2d_f_rgb_fxt1, - NULL, - NULL - }, - { - MESA_FORMAT_RGBA_FXT1, - NULL, - _mesa_fetch_texel_2d_f_rgba_fxt1, - NULL, - NULL - }, - { - MESA_FORMAT_RGB_DXT1, - NULL, - _mesa_fetch_texel_2d_f_rgb_dxt1, - NULL, - NULL - }, - { - MESA_FORMAT_RGBA_DXT1, - NULL, - _mesa_fetch_texel_2d_f_rgba_dxt1, - NULL, - NULL - }, - { - MESA_FORMAT_RGBA_DXT3, - NULL, - _mesa_fetch_texel_2d_f_rgba_dxt3, - NULL, - NULL - }, - { - MESA_FORMAT_RGBA_DXT5, - NULL, - _mesa_fetch_texel_2d_f_rgba_dxt5, - NULL, - NULL - }, - { - MESA_FORMAT_RGBA_FLOAT32, - fetch_texel_1d_f_rgba_f32, - fetch_texel_2d_f_rgba_f32, - fetch_texel_3d_f_rgba_f32, - store_texel_rgba_f32 - }, - { - MESA_FORMAT_RGBA_FLOAT16, - fetch_texel_1d_f_rgba_f16, - fetch_texel_2d_f_rgba_f16, - fetch_texel_3d_f_rgba_f16, - store_texel_rgba_f16 - }, - { - MESA_FORMAT_RGB_FLOAT32, - fetch_texel_1d_f_rgb_f32, - fetch_texel_2d_f_rgb_f32, - fetch_texel_3d_f_rgb_f32, - store_texel_rgb_f32 - }, - { - MESA_FORMAT_RGB_FLOAT16, - fetch_texel_1d_f_rgb_f16, - fetch_texel_2d_f_rgb_f16, - fetch_texel_3d_f_rgb_f16, - store_texel_rgb_f16 - }, - { - MESA_FORMAT_ALPHA_FLOAT32, - fetch_texel_1d_f_alpha_f32, - fetch_texel_2d_f_alpha_f32, - fetch_texel_3d_f_alpha_f32, - store_texel_alpha_f32 - }, - { - MESA_FORMAT_ALPHA_FLOAT16, - fetch_texel_1d_f_alpha_f16, - fetch_texel_2d_f_alpha_f16, - fetch_texel_3d_f_alpha_f16, - store_texel_alpha_f16 - }, - { - MESA_FORMAT_LUMINANCE_FLOAT32, - fetch_texel_1d_f_luminance_f32, - fetch_texel_2d_f_luminance_f32, - fetch_texel_3d_f_luminance_f32, - store_texel_luminance_f32 - }, - { - MESA_FORMAT_LUMINANCE_FLOAT16, - fetch_texel_1d_f_luminance_f16, - fetch_texel_2d_f_luminance_f16, - fetch_texel_3d_f_luminance_f16, - store_texel_luminance_f16 - }, - { - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, - fetch_texel_1d_f_luminance_alpha_f32, - fetch_texel_2d_f_luminance_alpha_f32, - fetch_texel_3d_f_luminance_alpha_f32, - store_texel_luminance_alpha_f32 - }, - { - MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, - fetch_texel_1d_f_luminance_alpha_f16, - fetch_texel_2d_f_luminance_alpha_f16, - fetch_texel_3d_f_luminance_alpha_f16, - store_texel_luminance_alpha_f16 - }, - { - MESA_FORMAT_INTENSITY_FLOAT32, - fetch_texel_1d_f_intensity_f32, - fetch_texel_2d_f_intensity_f32, - fetch_texel_3d_f_intensity_f32, - store_texel_intensity_f32 - }, - { - MESA_FORMAT_INTENSITY_FLOAT16, - fetch_texel_1d_f_intensity_f16, - fetch_texel_2d_f_intensity_f16, - fetch_texel_3d_f_intensity_f16, - store_texel_intensity_f16 - }, - - /* non-normalized, signed int */ - { - MESA_FORMAT_RGBA_INT8, - fetch_texel_1d_rgba_int8, - fetch_texel_2d_rgba_int8, - fetch_texel_3d_rgba_int8, - store_texel_rgba_int8 - }, - { - MESA_FORMAT_RGBA_INT16, - fetch_texel_1d_rgba_int16, - fetch_texel_2d_rgba_int16, - fetch_texel_3d_rgba_int16, - store_texel_rgba_int16 - }, - { - MESA_FORMAT_RGBA_INT32, - fetch_texel_1d_rgba_int32, - fetch_texel_2d_rgba_int32, - fetch_texel_3d_rgba_int32, - store_texel_rgba_int32 - }, - - /* non-normalized, unsigned int */ - { - MESA_FORMAT_RGBA_UINT8, - fetch_texel_1d_rgba_uint8, - fetch_texel_2d_rgba_uint8, - fetch_texel_3d_rgba_uint8, - store_texel_rgba_uint8 - }, - { - MESA_FORMAT_RGBA_UINT16, - fetch_texel_1d_rgba_uint16, - fetch_texel_2d_rgba_uint16, - fetch_texel_3d_rgba_uint16, - store_texel_rgba_uint16 - }, - { - MESA_FORMAT_RGBA_UINT32, - fetch_texel_1d_rgba_uint32, - fetch_texel_2d_rgba_uint32, - fetch_texel_3d_rgba_uint32, - store_texel_rgba_uint32 - }, - - /* dudv */ - { - MESA_FORMAT_DUDV8, - fetch_texel_1d_dudv8, - fetch_texel_2d_dudv8, - fetch_texel_3d_dudv8, - NULL - }, - - /* signed, normalized */ - { - MESA_FORMAT_SIGNED_R8, - fetch_texel_1d_signed_r8, - fetch_texel_2d_signed_r8, - fetch_texel_3d_signed_r8, - store_texel_signed_r8 - }, - { - MESA_FORMAT_SIGNED_RG88, - fetch_texel_1d_signed_rg88, - fetch_texel_2d_signed_rg88, - fetch_texel_3d_signed_rg88, - store_texel_signed_rg88 - }, - { - MESA_FORMAT_SIGNED_RGBX8888, - fetch_texel_1d_signed_rgbx8888, - fetch_texel_2d_signed_rgbx8888, - fetch_texel_3d_signed_rgbx8888, - store_texel_signed_rgbx8888 - }, - { - MESA_FORMAT_SIGNED_RGBA8888, - fetch_texel_1d_signed_rgba8888, - fetch_texel_2d_signed_rgba8888, - fetch_texel_3d_signed_rgba8888, - store_texel_signed_rgba8888 - }, - { - MESA_FORMAT_SIGNED_RGBA8888_REV, - fetch_texel_1d_signed_rgba8888_rev, - fetch_texel_2d_signed_rgba8888_rev, - fetch_texel_3d_signed_rgba8888_rev, - store_texel_signed_rgba8888_rev - }, - { - MESA_FORMAT_SIGNED_R_16, - fetch_texel_1d_signed_r_16, - fetch_texel_2d_signed_r_16, - fetch_texel_3d_signed_r_16, - store_texel_signed_r_16 - }, - { - MESA_FORMAT_SIGNED_RG_16, - fetch_texel_1d_signed_rg_16, - fetch_texel_2d_signed_rg_16, - fetch_texel_3d_signed_rg_16, - store_texel_signed_rg_16 - }, - { - MESA_FORMAT_SIGNED_RGB_16, - fetch_texel_1d_signed_rgb_16, - fetch_texel_2d_signed_rgb_16, - fetch_texel_3d_signed_rgb_16, - store_texel_signed_rgb_16 - }, - { - MESA_FORMAT_SIGNED_RGBA_16, - fetch_texel_1d_signed_rgba_16, - fetch_texel_2d_signed_rgba_16, - fetch_texel_3d_signed_rgba_16, - store_texel_signed_rgba_16 - }, - { - MESA_FORMAT_RGBA_16, - fetch_texel_1d_rgba_16, - fetch_texel_2d_rgba_16, - fetch_texel_3d_rgba_16, - store_texel_rgba_16 - }, - { - MESA_FORMAT_RED_RGTC1, - NULL, - _mesa_fetch_texel_2d_f_red_rgtc1, - NULL, - NULL - }, - { - MESA_FORMAT_SIGNED_RED_RGTC1, - NULL, - _mesa_fetch_texel_2d_f_signed_red_rgtc1, - NULL, - NULL - }, - { - MESA_FORMAT_RG_RGTC2, - NULL, - _mesa_fetch_texel_2d_f_rg_rgtc2, - NULL, - NULL - }, - { - MESA_FORMAT_SIGNED_RG_RGTC2, - NULL, - _mesa_fetch_texel_2d_f_signed_rg_rgtc2, - NULL, - NULL - }, - { - MESA_FORMAT_L_LATC1, - NULL, - _mesa_fetch_texel_2d_f_l_latc1, - NULL, - NULL - }, - { - MESA_FORMAT_SIGNED_L_LATC1, - NULL, - _mesa_fetch_texel_2d_f_signed_l_latc1, - NULL, - NULL - }, - { - MESA_FORMAT_LA_LATC2, - NULL, - _mesa_fetch_texel_2d_f_la_latc2, - NULL, - NULL - }, - { - MESA_FORMAT_SIGNED_LA_LATC2, - NULL, - _mesa_fetch_texel_2d_f_signed_la_latc2, - NULL, - NULL - }, -}; - - -FetchTexelFuncF -_mesa_get_texel_fetch_func(gl_format format, GLuint dims) -{ -#ifdef DEBUG - /* check that the table entries are sorted by format name */ - gl_format fmt; - for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) { - assert(texfetch_funcs[fmt].Name == fmt); - } -#endif - - assert(Elements(texfetch_funcs) == MESA_FORMAT_COUNT); - assert(format < MESA_FORMAT_COUNT); - - switch (dims) { - case 1: - return texfetch_funcs[format].Fetch1D; - case 2: - return texfetch_funcs[format].Fetch2D; - case 3: - return texfetch_funcs[format].Fetch3D; - default: - assert(0 && "bad dims in _mesa_get_texel_fetch_func"); - return NULL; - } -} - - -StoreTexelFunc -_mesa_get_texel_store_func(gl_format format) -{ - assert(format < MESA_FORMAT_COUNT); - return texfetch_funcs[format].StoreTexel; -} - - -/** - * Adaptor for fetching a GLchan texel from a float-valued texture. - */ -static void -fetch_texel_float_to_chan(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texelOut) -{ - GLfloat temp[4]; - GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat); - - ASSERT(texImage->FetchTexelf); - texImage->FetchTexelf(texImage, i, j, k, temp); - if (baseFormat == GL_DEPTH_COMPONENT || - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* just one channel */ - UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]); - } - else { - /* four channels */ - UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]); - UNCLAMPED_FLOAT_TO_CHAN(texelOut[1], temp[1]); - UNCLAMPED_FLOAT_TO_CHAN(texelOut[2], temp[2]); - UNCLAMPED_FLOAT_TO_CHAN(texelOut[3], temp[3]); - } -} - - -#if 0 -/** - * Adaptor for fetching a float texel from a GLchan-valued texture. - */ -static void -fetch_texel_chan_to_float(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texelOut) -{ - GLchan temp[4]; - GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat); - - ASSERT(texImage->FetchTexelc); - texImage->FetchTexelc(texImage, i, j, k, temp); - if (baseFormat == GL_DEPTH_COMPONENT || - baseFormat == GL_DEPTH_STENCIL_EXT) { - /* just one channel */ - texelOut[0] = CHAN_TO_FLOAT(temp[0]); - } - else { - /* four channels */ - texelOut[0] = CHAN_TO_FLOAT(temp[0]); - texelOut[1] = CHAN_TO_FLOAT(temp[1]); - texelOut[2] = CHAN_TO_FLOAT(temp[2]); - texelOut[3] = CHAN_TO_FLOAT(temp[3]); - } -} -#endif - - -/** - * Initialize the texture image's FetchTexelc and FetchTexelf methods. - */ -void -_mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims) -{ - gl_format format = texImage->TexFormat; - - ASSERT(dims == 1 || dims == 2 || dims == 3); - - if (texImage->TexObject->sRGBDecode == GL_SKIP_DECODE_EXT && - _mesa_get_format_color_encoding(format) == GL_SRGB) { - format = _mesa_get_srgb_format_linear(format); - } - - texImage->FetchTexelf = _mesa_get_texel_fetch_func(format, dims); - - texImage->FetchTexelc = fetch_texel_float_to_chan; - - ASSERT(texImage->FetchTexelc); - ASSERT(texImage->FetchTexelf); -} - -void -_mesa_update_fetch_functions(struct gl_texture_object *texObj) -{ - GLuint face, i; - GLuint dims; - - dims = _mesa_get_texture_dimensions(texObj->Target); - - for (face = 0; face < 6; face++) { - for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { - if (texObj->Image[face][i]) { - _mesa_set_fetch_functions(texObj->Image[face][i], dims); - } - } - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texfetch.c
+ *
+ * Texel fetch/store functions
+ *
+ * \author Gareth Hughes
+ */
+
+
+#include "colormac.h"
+#include "macros.h"
+#include "texcompress.h"
+#include "texcompress_fxt1.h"
+#include "texcompress_s3tc.h"
+#include "texcompress_rgtc.h"
+#include "texfetch.h"
+#include "teximage.h"
+
+
+/**
+ * Convert an 8-bit sRGB value from non-linear space to a
+ * linear RGB value in [0, 1].
+ * Implemented with a 256-entry lookup table.
+ */
+static INLINE GLfloat
+nonlinear_to_linear(GLubyte cs8)
+{
+ static GLfloat table[256];
+ static GLboolean tableReady = GL_FALSE;
+ if (!tableReady) {
+ /* compute lookup table now */
+ GLuint i;
+ for (i = 0; i < 256; i++) {
+ const GLfloat cs = UBYTE_TO_FLOAT(i);
+ if (cs <= 0.04045) {
+ table[i] = cs / 12.92f;
+ }
+ else {
+ table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4);
+ }
+ }
+ tableReady = GL_TRUE;
+ }
+ return table[cs8];
+}
+
+
+
+/* Texel fetch routines for all supported formats
+ */
+#define DIM 1
+#include "texfetch_tmp.h"
+
+#define DIM 2
+#include "texfetch_tmp.h"
+
+#define DIM 3
+#include "texfetch_tmp.h"
+
+/**
+ * Null texel fetch function.
+ *
+ * Have to have this so the FetchTexel function pointer is never NULL.
+ */
+static void fetch_null_texelf( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ (void) texImage; (void) i; (void) j; (void) k;
+ texel[RCOMP] = 0.0;
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 0.0;
+ _mesa_warning(NULL, "fetch_null_texelf() called!");
+}
+
+static void store_null_texel(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ (void) texImage;
+ (void) i;
+ (void) j;
+ (void) k;
+ (void) texel;
+ /* no-op */
+}
+
+
+
+/**
+ * Table to map MESA_FORMAT_ to texel fetch/store funcs.
+ * XXX this is somewhat temporary.
+ */
+static struct {
+ gl_format Name;
+ FetchTexelFuncF Fetch1D;
+ FetchTexelFuncF Fetch2D;
+ FetchTexelFuncF Fetch3D;
+ StoreTexelFunc StoreTexel;
+}
+texfetch_funcs[MESA_FORMAT_COUNT] =
+{
+ {
+ MESA_FORMAT_NONE,
+ fetch_null_texelf,
+ fetch_null_texelf,
+ fetch_null_texelf,
+ store_null_texel
+ },
+
+ {
+ MESA_FORMAT_RGBA8888,
+ fetch_texel_1d_f_rgba8888,
+ fetch_texel_2d_f_rgba8888,
+ fetch_texel_3d_f_rgba8888,
+ store_texel_rgba8888
+ },
+ {
+ MESA_FORMAT_RGBA8888_REV,
+ fetch_texel_1d_f_rgba8888_rev,
+ fetch_texel_2d_f_rgba8888_rev,
+ fetch_texel_3d_f_rgba8888_rev,
+ store_texel_rgba8888_rev
+ },
+ {
+ MESA_FORMAT_ARGB8888,
+ fetch_texel_1d_f_argb8888,
+ fetch_texel_2d_f_argb8888,
+ fetch_texel_3d_f_argb8888,
+ store_texel_argb8888
+ },
+ {
+ MESA_FORMAT_ARGB8888_REV,
+ fetch_texel_1d_f_argb8888_rev,
+ fetch_texel_2d_f_argb8888_rev,
+ fetch_texel_3d_f_argb8888_rev,
+ store_texel_argb8888_rev
+ },
+ {
+ MESA_FORMAT_XRGB8888,
+ fetch_texel_1d_f_xrgb8888,
+ fetch_texel_2d_f_xrgb8888,
+ fetch_texel_3d_f_xrgb8888,
+ store_texel_xrgb8888
+ },
+ {
+ MESA_FORMAT_XRGB8888_REV,
+ fetch_texel_1d_f_xrgb8888_rev,
+ fetch_texel_2d_f_xrgb8888_rev,
+ fetch_texel_3d_f_xrgb8888_rev,
+ store_texel_xrgb8888_rev,
+ },
+ {
+ MESA_FORMAT_RGB888,
+ fetch_texel_1d_f_rgb888,
+ fetch_texel_2d_f_rgb888,
+ fetch_texel_3d_f_rgb888,
+ store_texel_rgb888
+ },
+ {
+ MESA_FORMAT_BGR888,
+ fetch_texel_1d_f_bgr888,
+ fetch_texel_2d_f_bgr888,
+ fetch_texel_3d_f_bgr888,
+ store_texel_bgr888
+ },
+ {
+ MESA_FORMAT_RGB565,
+ fetch_texel_1d_f_rgb565,
+ fetch_texel_2d_f_rgb565,
+ fetch_texel_3d_f_rgb565,
+ store_texel_rgb565
+ },
+ {
+ MESA_FORMAT_RGB565_REV,
+ fetch_texel_1d_f_rgb565_rev,
+ fetch_texel_2d_f_rgb565_rev,
+ fetch_texel_3d_f_rgb565_rev,
+ store_texel_rgb565_rev
+ },
+ {
+ MESA_FORMAT_ARGB4444,
+ fetch_texel_1d_f_argb4444,
+ fetch_texel_2d_f_argb4444,
+ fetch_texel_3d_f_argb4444,
+ store_texel_argb4444
+ },
+ {
+ MESA_FORMAT_ARGB4444_REV,
+ fetch_texel_1d_f_argb4444_rev,
+ fetch_texel_2d_f_argb4444_rev,
+ fetch_texel_3d_f_argb4444_rev,
+ store_texel_argb4444_rev
+ },
+ {
+ MESA_FORMAT_RGBA5551,
+ fetch_texel_1d_f_rgba5551,
+ fetch_texel_2d_f_rgba5551,
+ fetch_texel_3d_f_rgba5551,
+ store_texel_rgba5551
+ },
+ {
+ MESA_FORMAT_ARGB1555,
+ fetch_texel_1d_f_argb1555,
+ fetch_texel_2d_f_argb1555,
+ fetch_texel_3d_f_argb1555,
+ store_texel_argb1555
+ },
+ {
+ MESA_FORMAT_ARGB1555_REV,
+ fetch_texel_1d_f_argb1555_rev,
+ fetch_texel_2d_f_argb1555_rev,
+ fetch_texel_3d_f_argb1555_rev,
+ store_texel_argb1555_rev
+ },
+ {
+ MESA_FORMAT_AL44,
+ fetch_texel_1d_f_al44,
+ fetch_texel_2d_f_al44,
+ fetch_texel_3d_f_al44,
+ store_texel_al44
+ },
+ {
+ MESA_FORMAT_AL88,
+ fetch_texel_1d_f_al88,
+ fetch_texel_2d_f_al88,
+ fetch_texel_3d_f_al88,
+ store_texel_al88
+ },
+ {
+ MESA_FORMAT_AL88_REV,
+ fetch_texel_1d_f_al88_rev,
+ fetch_texel_2d_f_al88_rev,
+ fetch_texel_3d_f_al88_rev,
+ store_texel_al88_rev
+ },
+ {
+ MESA_FORMAT_AL1616,
+ fetch_texel_1d_f_al1616,
+ fetch_texel_2d_f_al1616,
+ fetch_texel_3d_f_al1616,
+ store_texel_al1616
+ },
+ {
+ MESA_FORMAT_AL1616_REV,
+ fetch_texel_1d_f_al1616_rev,
+ fetch_texel_2d_f_al1616_rev,
+ fetch_texel_3d_f_al1616_rev,
+ store_texel_al1616_rev
+ },
+ {
+ MESA_FORMAT_RGB332,
+ fetch_texel_1d_f_rgb332,
+ fetch_texel_2d_f_rgb332,
+ fetch_texel_3d_f_rgb332,
+ store_texel_rgb332
+ },
+ {
+ MESA_FORMAT_A8,
+ fetch_texel_1d_f_a8,
+ fetch_texel_2d_f_a8,
+ fetch_texel_3d_f_a8,
+ store_texel_a8
+ },
+ {
+ MESA_FORMAT_A16,
+ fetch_texel_1d_f_a16,
+ fetch_texel_2d_f_a16,
+ fetch_texel_3d_f_a16,
+ store_texel_a16
+ },
+ {
+ MESA_FORMAT_L8,
+ fetch_texel_1d_f_l8,
+ fetch_texel_2d_f_l8,
+ fetch_texel_3d_f_l8,
+ store_texel_l8
+ },
+ {
+ MESA_FORMAT_L16,
+ fetch_texel_1d_f_l16,
+ fetch_texel_2d_f_l16,
+ fetch_texel_3d_f_l16,
+ store_texel_l16
+ },
+ {
+ MESA_FORMAT_I8,
+ fetch_texel_1d_f_i8,
+ fetch_texel_2d_f_i8,
+ fetch_texel_3d_f_i8,
+ store_texel_i8
+ },
+ {
+ MESA_FORMAT_I16,
+ fetch_texel_1d_f_i16,
+ fetch_texel_2d_f_i16,
+ fetch_texel_3d_f_i16,
+ store_texel_i16
+ },
+ {
+ MESA_FORMAT_CI8,
+ fetch_texel_1d_f_ci8,
+ fetch_texel_2d_f_ci8,
+ fetch_texel_3d_f_ci8,
+ store_texel_ci8
+ },
+ {
+ MESA_FORMAT_YCBCR,
+ fetch_texel_1d_f_ycbcr,
+ fetch_texel_2d_f_ycbcr,
+ fetch_texel_3d_f_ycbcr,
+ store_texel_ycbcr
+ },
+ {
+ MESA_FORMAT_YCBCR_REV,
+ fetch_texel_1d_f_ycbcr_rev,
+ fetch_texel_2d_f_ycbcr_rev,
+ fetch_texel_3d_f_ycbcr_rev,
+ store_texel_ycbcr_rev
+ },
+ {
+ MESA_FORMAT_R8,
+ fetch_texel_1d_f_r8,
+ fetch_texel_2d_f_r8,
+ fetch_texel_3d_f_r8,
+ store_texel_r8,
+ },
+ {
+ MESA_FORMAT_RG88,
+ fetch_texel_1d_f_rg88,
+ fetch_texel_2d_f_rg88,
+ fetch_texel_3d_f_rg88,
+ store_texel_rg88,
+ },
+ {
+ MESA_FORMAT_RG88_REV,
+ fetch_texel_1d_f_rg88_rev,
+ fetch_texel_2d_f_rg88_rev,
+ fetch_texel_3d_f_rg88_rev,
+ store_texel_rg88_rev,
+ },
+ {
+ MESA_FORMAT_R16,
+ fetch_texel_1d_f_r16,
+ fetch_texel_2d_f_r16,
+ fetch_texel_3d_f_r16,
+ store_texel_r16,
+ },
+ {
+ MESA_FORMAT_RG1616,
+ fetch_texel_1d_f_rg1616,
+ fetch_texel_2d_f_rg1616,
+ fetch_texel_3d_f_rg1616,
+ store_texel_rg1616,
+ },
+ {
+ MESA_FORMAT_RG1616_REV,
+ fetch_texel_1d_f_rg1616_rev,
+ fetch_texel_2d_f_rg1616_rev,
+ fetch_texel_3d_f_rg1616_rev,
+ store_texel_rg1616_rev,
+ },
+ {
+ MESA_FORMAT_ARGB2101010,
+ fetch_texel_1d_f_argb2101010,
+ fetch_texel_2d_f_argb2101010,
+ fetch_texel_3d_f_argb2101010,
+ store_texel_argb2101010
+ },
+ {
+ MESA_FORMAT_Z24_S8,
+ fetch_texel_1d_f_z24_s8,
+ fetch_texel_2d_f_z24_s8,
+ fetch_texel_3d_f_z24_s8,
+ store_texel_z24_s8
+ },
+ {
+ MESA_FORMAT_S8_Z24,
+ fetch_texel_1d_f_s8_z24,
+ fetch_texel_2d_f_s8_z24,
+ fetch_texel_3d_f_s8_z24,
+ store_texel_s8_z24
+ },
+ {
+ MESA_FORMAT_Z16,
+ fetch_texel_1d_f_z16,
+ fetch_texel_2d_f_z16,
+ fetch_texel_3d_f_z16,
+ store_texel_z16
+ },
+ {
+ MESA_FORMAT_X8_Z24,
+ fetch_texel_1d_f_s8_z24,
+ fetch_texel_2d_f_s8_z24,
+ fetch_texel_3d_f_s8_z24,
+ store_texel_s8_z24
+ },
+ {
+ MESA_FORMAT_Z24_X8,
+ fetch_texel_1d_f_z24_s8,
+ fetch_texel_2d_f_z24_s8,
+ fetch_texel_3d_f_z24_s8,
+ store_texel_z24_s8
+ },
+ {
+ MESA_FORMAT_Z32,
+ fetch_texel_1d_f_z32,
+ fetch_texel_2d_f_z32,
+ fetch_texel_3d_f_z32,
+ store_texel_z32
+ },
+ {
+ MESA_FORMAT_S8,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SRGB8,
+ fetch_texel_1d_srgb8,
+ fetch_texel_2d_srgb8,
+ fetch_texel_3d_srgb8,
+ store_texel_srgb8
+ },
+ {
+ MESA_FORMAT_SRGBA8,
+ fetch_texel_1d_srgba8,
+ fetch_texel_2d_srgba8,
+ fetch_texel_3d_srgba8,
+ store_texel_srgba8
+ },
+ {
+ MESA_FORMAT_SARGB8,
+ fetch_texel_1d_sargb8,
+ fetch_texel_2d_sargb8,
+ fetch_texel_3d_sargb8,
+ store_texel_sargb8
+ },
+ {
+ MESA_FORMAT_SL8,
+ fetch_texel_1d_sl8,
+ fetch_texel_2d_sl8,
+ fetch_texel_3d_sl8,
+ store_texel_sl8
+ },
+ {
+ MESA_FORMAT_SLA8,
+ fetch_texel_1d_sla8,
+ fetch_texel_2d_sla8,
+ fetch_texel_3d_sla8,
+ store_texel_sla8
+ },
+ {
+ MESA_FORMAT_SRGB_DXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_srgb_dxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_srgba_dxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT3,
+ NULL,
+ _mesa_fetch_texel_2d_f_srgba_dxt3,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SRGBA_DXT5,
+ NULL,
+ _mesa_fetch_texel_2d_f_srgba_dxt5,
+ NULL,
+ NULL
+ },
+
+ {
+ MESA_FORMAT_RGB_FXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgb_fxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGBA_FXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgba_fxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGB_DXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgb_dxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGBA_DXT1,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgba_dxt1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGBA_DXT3,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgba_dxt3,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGBA_DXT5,
+ NULL,
+ _mesa_fetch_texel_2d_f_rgba_dxt5,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RGBA_FLOAT32,
+ fetch_texel_1d_f_rgba_f32,
+ fetch_texel_2d_f_rgba_f32,
+ fetch_texel_3d_f_rgba_f32,
+ store_texel_rgba_f32
+ },
+ {
+ MESA_FORMAT_RGBA_FLOAT16,
+ fetch_texel_1d_f_rgba_f16,
+ fetch_texel_2d_f_rgba_f16,
+ fetch_texel_3d_f_rgba_f16,
+ store_texel_rgba_f16
+ },
+ {
+ MESA_FORMAT_RGB_FLOAT32,
+ fetch_texel_1d_f_rgb_f32,
+ fetch_texel_2d_f_rgb_f32,
+ fetch_texel_3d_f_rgb_f32,
+ store_texel_rgb_f32
+ },
+ {
+ MESA_FORMAT_RGB_FLOAT16,
+ fetch_texel_1d_f_rgb_f16,
+ fetch_texel_2d_f_rgb_f16,
+ fetch_texel_3d_f_rgb_f16,
+ store_texel_rgb_f16
+ },
+ {
+ MESA_FORMAT_ALPHA_FLOAT32,
+ fetch_texel_1d_f_alpha_f32,
+ fetch_texel_2d_f_alpha_f32,
+ fetch_texel_3d_f_alpha_f32,
+ store_texel_alpha_f32
+ },
+ {
+ MESA_FORMAT_ALPHA_FLOAT16,
+ fetch_texel_1d_f_alpha_f16,
+ fetch_texel_2d_f_alpha_f16,
+ fetch_texel_3d_f_alpha_f16,
+ store_texel_alpha_f16
+ },
+ {
+ MESA_FORMAT_LUMINANCE_FLOAT32,
+ fetch_texel_1d_f_luminance_f32,
+ fetch_texel_2d_f_luminance_f32,
+ fetch_texel_3d_f_luminance_f32,
+ store_texel_luminance_f32
+ },
+ {
+ MESA_FORMAT_LUMINANCE_FLOAT16,
+ fetch_texel_1d_f_luminance_f16,
+ fetch_texel_2d_f_luminance_f16,
+ fetch_texel_3d_f_luminance_f16,
+ store_texel_luminance_f16
+ },
+ {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
+ fetch_texel_1d_f_luminance_alpha_f32,
+ fetch_texel_2d_f_luminance_alpha_f32,
+ fetch_texel_3d_f_luminance_alpha_f32,
+ store_texel_luminance_alpha_f32
+ },
+ {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
+ fetch_texel_1d_f_luminance_alpha_f16,
+ fetch_texel_2d_f_luminance_alpha_f16,
+ fetch_texel_3d_f_luminance_alpha_f16,
+ store_texel_luminance_alpha_f16
+ },
+ {
+ MESA_FORMAT_INTENSITY_FLOAT32,
+ fetch_texel_1d_f_intensity_f32,
+ fetch_texel_2d_f_intensity_f32,
+ fetch_texel_3d_f_intensity_f32,
+ store_texel_intensity_f32
+ },
+ {
+ MESA_FORMAT_INTENSITY_FLOAT16,
+ fetch_texel_1d_f_intensity_f16,
+ fetch_texel_2d_f_intensity_f16,
+ fetch_texel_3d_f_intensity_f16,
+ store_texel_intensity_f16
+ },
+
+ /* non-normalized, signed int */
+ {
+ MESA_FORMAT_RGBA_INT8,
+ fetch_texel_1d_rgba_int8,
+ fetch_texel_2d_rgba_int8,
+ fetch_texel_3d_rgba_int8,
+ store_texel_rgba_int8
+ },
+ {
+ MESA_FORMAT_RGBA_INT16,
+ fetch_texel_1d_rgba_int16,
+ fetch_texel_2d_rgba_int16,
+ fetch_texel_3d_rgba_int16,
+ store_texel_rgba_int16
+ },
+ {
+ MESA_FORMAT_RGBA_INT32,
+ fetch_texel_1d_rgba_int32,
+ fetch_texel_2d_rgba_int32,
+ fetch_texel_3d_rgba_int32,
+ store_texel_rgba_int32
+ },
+
+ /* non-normalized, unsigned int */
+ {
+ MESA_FORMAT_RGBA_UINT8,
+ fetch_texel_1d_rgba_uint8,
+ fetch_texel_2d_rgba_uint8,
+ fetch_texel_3d_rgba_uint8,
+ store_texel_rgba_uint8
+ },
+ {
+ MESA_FORMAT_RGBA_UINT16,
+ fetch_texel_1d_rgba_uint16,
+ fetch_texel_2d_rgba_uint16,
+ fetch_texel_3d_rgba_uint16,
+ store_texel_rgba_uint16
+ },
+ {
+ MESA_FORMAT_RGBA_UINT32,
+ fetch_texel_1d_rgba_uint32,
+ fetch_texel_2d_rgba_uint32,
+ fetch_texel_3d_rgba_uint32,
+ store_texel_rgba_uint32
+ },
+
+ /* dudv */
+ {
+ MESA_FORMAT_DUDV8,
+ fetch_texel_1d_dudv8,
+ fetch_texel_2d_dudv8,
+ fetch_texel_3d_dudv8,
+ NULL
+ },
+
+ /* signed, normalized */
+ {
+ MESA_FORMAT_SIGNED_R8,
+ fetch_texel_1d_signed_r8,
+ fetch_texel_2d_signed_r8,
+ fetch_texel_3d_signed_r8,
+ store_texel_signed_r8
+ },
+ {
+ MESA_FORMAT_SIGNED_RG88,
+ fetch_texel_1d_signed_rg88,
+ fetch_texel_2d_signed_rg88,
+ fetch_texel_3d_signed_rg88,
+ store_texel_signed_rg88
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBX8888,
+ fetch_texel_1d_signed_rgbx8888,
+ fetch_texel_2d_signed_rgbx8888,
+ fetch_texel_3d_signed_rgbx8888,
+ store_texel_signed_rgbx8888
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA8888,
+ fetch_texel_1d_signed_rgba8888,
+ fetch_texel_2d_signed_rgba8888,
+ fetch_texel_3d_signed_rgba8888,
+ store_texel_signed_rgba8888
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA8888_REV,
+ fetch_texel_1d_signed_rgba8888_rev,
+ fetch_texel_2d_signed_rgba8888_rev,
+ fetch_texel_3d_signed_rgba8888_rev,
+ store_texel_signed_rgba8888_rev
+ },
+ {
+ MESA_FORMAT_SIGNED_R_16,
+ fetch_texel_1d_signed_r_16,
+ fetch_texel_2d_signed_r_16,
+ fetch_texel_3d_signed_r_16,
+ store_texel_signed_r_16
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_16,
+ fetch_texel_1d_signed_rg_16,
+ fetch_texel_2d_signed_rg_16,
+ fetch_texel_3d_signed_rg_16,
+ store_texel_signed_rg_16
+ },
+ {
+ MESA_FORMAT_SIGNED_RGB_16,
+ fetch_texel_1d_signed_rgb_16,
+ fetch_texel_2d_signed_rgb_16,
+ fetch_texel_3d_signed_rgb_16,
+ store_texel_signed_rgb_16
+ },
+ {
+ MESA_FORMAT_SIGNED_RGBA_16,
+ fetch_texel_1d_signed_rgba_16,
+ fetch_texel_2d_signed_rgba_16,
+ fetch_texel_3d_signed_rgba_16,
+ store_texel_signed_rgba_16
+ },
+ {
+ MESA_FORMAT_RGBA_16,
+ fetch_texel_1d_rgba_16,
+ fetch_texel_2d_rgba_16,
+ fetch_texel_3d_rgba_16,
+ store_texel_rgba_16
+ },
+ {
+ MESA_FORMAT_RED_RGTC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_red_rgtc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_RED_RGTC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_red_rgtc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_RG_RGTC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_rg_rgtc2,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_RG_RGTC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_rg_rgtc2,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_L_LATC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_l_latc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_L_LATC1,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_l_latc1,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_LA_LATC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_la_latc2,
+ NULL,
+ NULL
+ },
+ {
+ MESA_FORMAT_SIGNED_LA_LATC2,
+ NULL,
+ _mesa_fetch_texel_2d_f_signed_la_latc2,
+ NULL,
+ NULL
+ },
+};
+
+
+FetchTexelFuncF
+_mesa_get_texel_fetch_func(gl_format format, GLuint dims)
+{
+#ifdef DEBUG
+ /* check that the table entries are sorted by format name */
+ gl_format fmt;
+ for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) {
+ assert(texfetch_funcs[fmt].Name == fmt);
+ }
+#endif
+
+ assert(Elements(texfetch_funcs) == MESA_FORMAT_COUNT);
+ assert(format < MESA_FORMAT_COUNT);
+
+ switch (dims) {
+ case 1:
+ return texfetch_funcs[format].Fetch1D;
+ case 2:
+ return texfetch_funcs[format].Fetch2D;
+ case 3:
+ return texfetch_funcs[format].Fetch3D;
+ default:
+ assert(0 && "bad dims in _mesa_get_texel_fetch_func");
+ return NULL;
+ }
+}
+
+
+StoreTexelFunc
+_mesa_get_texel_store_func(gl_format format)
+{
+ assert(format < MESA_FORMAT_COUNT);
+ return texfetch_funcs[format].StoreTexel;
+}
+
+
+/**
+ * Adaptor for fetching a GLchan texel from a float-valued texture.
+ */
+static void
+fetch_texel_float_to_chan(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texelOut)
+{
+ GLfloat temp[4];
+ GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+ ASSERT(texImage->FetchTexelf);
+ texImage->FetchTexelf(texImage, i, j, k, temp);
+ if (baseFormat == GL_DEPTH_COMPONENT ||
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* just one channel */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ }
+ else {
+ /* four channels */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[1], temp[1]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[2], temp[2]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[3], temp[3]);
+ }
+}
+
+
+#if 0
+/**
+ * Adaptor for fetching a float texel from a GLchan-valued texture.
+ */
+static void
+fetch_texel_chan_to_float(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texelOut)
+{
+ GLchan temp[4];
+ GLenum baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+ ASSERT(texImage->FetchTexelc);
+ texImage->FetchTexelc(texImage, i, j, k, temp);
+ if (baseFormat == GL_DEPTH_COMPONENT ||
+ baseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* just one channel */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ }
+ else {
+ /* four channels */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ texelOut[1] = CHAN_TO_FLOAT(temp[1]);
+ texelOut[2] = CHAN_TO_FLOAT(temp[2]);
+ texelOut[3] = CHAN_TO_FLOAT(temp[3]);
+ }
+}
+#endif
+
+
+/**
+ * Initialize the texture image's FetchTexelc and FetchTexelf methods.
+ */
+void
+_mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims)
+{
+ gl_format format = texImage->TexFormat;
+
+ ASSERT(dims == 1 || dims == 2 || dims == 3);
+
+ if (texImage->TexObject->sRGBDecode == GL_SKIP_DECODE_EXT &&
+ _mesa_get_format_color_encoding(format) == GL_SRGB) {
+ format = _mesa_get_srgb_format_linear(format);
+ }
+
+ texImage->FetchTexelf = _mesa_get_texel_fetch_func(format, dims);
+
+ texImage->FetchTexelc = fetch_texel_float_to_chan;
+
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
+}
+
+void
+_mesa_update_fetch_functions(struct gl_texture_object *texObj)
+{
+ GLuint face, i;
+ GLuint dims;
+
+ dims = _mesa_get_texture_dimensions(texObj->Target);
+
+ for (face = 0; face < 6; face++) {
+ for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
+ if (texObj->Image[face][i]) {
+ _mesa_set_fetch_functions(texObj->Image[face][i], dims);
+ }
+ }
+ }
+}
diff --git a/mesalib/src/mesa/main/texformat.c b/mesalib/src/mesa/main/texformat.c index 5eabf2aa5..80518200b 100644 --- a/mesalib/src/mesa/main/texformat.c +++ b/mesalib/src/mesa/main/texformat.c @@ -1,656 +1,656 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (c) 2008-2009 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file texformat.c - * Texture formats. - * - * \author Gareth Hughes - * \author Brian Paul - */ - - -#include "context.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "texcompress.h" -#include "texformat.h" - -#define RETURN_IF_SUPPORTED(f) do { \ - if (ctx->TextureFormatSupported[f]) \ - return f; \ -} while (0) - -/** - * Choose an appropriate texture format given the format, type and - * internalFormat parameters passed to glTexImage(). - * - * \param ctx the GL context. - * \param internalFormat user's prefered internal texture format. - * \param format incoming image pixel format. - * \param type incoming image data type. - * - * \return a pointer to a gl_texture_format object which describes the - * choosen texture format, or NULL on failure. - * - * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers - * will typically override this function with a specialized version. - */ -gl_format -_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type ) -{ - (void) format; - (void) type; - - switch (internalFormat) { - /* shallow RGBA formats */ - case 4: - case GL_RGBA: - if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) { - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); - } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); - } - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - case GL_RGBA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGB5_A1: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); - break; - case GL_RGBA2: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/ - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); - break; - case GL_RGBA4: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); - break; - - /* deep RGBA formats */ - case GL_RGB10_A2: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGBA12: - case GL_RGBA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - /* shallow RGB formats */ - case 3: - case GL_RGB: - case GL_RGB8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_R3_G3_B2: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_RGB4: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */ - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); - break; - case GL_RGB5: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); - break; - - /* deep RGB formats */ - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - /* Alpha formats */ - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - - case GL_ALPHA12: - case GL_ALPHA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_A16); - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - - /* Luminance formats */ - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - - case GL_LUMINANCE12: - case GL_LUMINANCE16: - RETURN_IF_SUPPORTED(MESA_FORMAT_L16); - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - - /* Luminance/Alpha formats */ - case GL_LUMINANCE4_ALPHA4: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL44); - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616); - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - - case GL_INTENSITY12: - case GL_INTENSITY16: - RETURN_IF_SUPPORTED(MESA_FORMAT_I16); - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - - case GL_COLOR_INDEX: - case GL_COLOR_INDEX1_EXT: - case GL_COLOR_INDEX2_EXT: - case GL_COLOR_INDEX4_EXT: - case GL_COLOR_INDEX12_EXT: - case GL_COLOR_INDEX16_EXT: - case GL_COLOR_INDEX8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_CI8); - break; - - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.ARB_depth_texture) { - switch (internalFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z32); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - break; - case GL_DEPTH_COMPONENT16: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z16); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - default: - ; /* fallthrough */ - } - } - - switch (internalFormat) { - case GL_COMPRESSED_ALPHA_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_A8); - break; - case GL_COMPRESSED_LUMINANCE_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_L8); - break; - case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); - break; - case GL_COMPRESSED_INTENSITY_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_I8); - break; - case GL_COMPRESSED_RGB_ARB: - if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - if (ctx->Extensions.TDFX_texture_compression_FXT1) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); - RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - case GL_COMPRESSED_RGBA_ARB: - if (ctx->Extensions.EXT_texture_compression_s3tc || - ctx->Extensions.S3_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */ - if (ctx->Extensions.TDFX_texture_compression_FXT1) - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.MESA_ycbcr_texture) { - if (internalFormat == GL_YCBCR_MESA) { - if (type == GL_UNSIGNED_SHORT_8_8_MESA) - RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR); - else - RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV); - } - } - -#if FEATURE_texture_fxt1 - if (ctx->Extensions.TDFX_texture_compression_FXT1) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_FXT1_3DFX: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); - break; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); - break; - default: - ; /* fallthrough */ - } - } -#endif - -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); - break; - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.S3_s3tc) { - switch (internalFormat) { - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); - break; - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); - break; - default: - ; /* fallthrough */ - } - } -#endif - - if (ctx->Extensions.ARB_texture_float) { - switch (internalFormat) { - case GL_ALPHA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); - break; - case GL_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); - break; - case GL_LUMINANCE16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); - break; - case GL_LUMINANCE32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); - break; - case GL_LUMINANCE_ALPHA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); - break; - case GL_LUMINANCE_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); - break; - case GL_INTENSITY16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); - break; - case GL_INTENSITY32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); - break; - case GL_RGB16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); - break; - case GL_RGB32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); - break; - case GL_RGBA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); - break; - case GL_RGBA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_packed_depth_stencil) { - switch (internalFormat) { - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8); - RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_envmap_bumpmap) { - switch (internalFormat) { - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.MESA_texture_signed_rgba) { - switch (internalFormat) { - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->VersionMajor * 10 + ctx->VersionMinor >= 31) { - switch (internalFormat) { - case GL_RED_SNORM: - case GL_R8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8); - break; - case GL_RG_SNORM: - case GL_RG8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88); - break; - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); - break; - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - break; - case GL_R16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R_16); - break; - case GL_RG16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_16); - break; - case GL_RGB16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); - break; - case GL_RGBA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - break; - default: - ; /* fall-through */ - } - } - -#if FEATURE_EXT_texture_sRGB - if (ctx->Extensions.EXT_texture_sRGB) { - switch (internalFormat) { - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SLUMINANCE_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_EXT: -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); -#endif - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_EXT: -#if FEATURE_texture_s3tc - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ -#endif - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; -#if FEATURE_texture_s3tc - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - if (ctx->Extensions.EXT_texture_compression_s3tc) - RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5); - RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); - break; -#endif - default: - ; /* fallthrough */ - } - } -#endif /* FEATURE_EXT_texture_sRGB */ - - if (ctx->Extensions.EXT_texture_integer) { - switch (internalFormat) { - case GL_RGBA32UI_EXT: - case GL_RGB32UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); - break; - case GL_RGBA16UI_EXT: - case GL_RGB16UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); - break; - case GL_RGBA8UI_EXT: - case GL_RGB8UI_EXT: - case GL_ALPHA8UI_EXT: - case GL_INTENSITY8UI_EXT: - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE_ALPHA8UI_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); - break; - case GL_RGBA32I_EXT: - case GL_RGB32I_EXT: - case GL_ALPHA32I_EXT: - case GL_INTENSITY32I_EXT: - case GL_LUMINANCE32I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); - break; - case GL_RGBA16I_EXT: - case GL_RGB16I_EXT: - case GL_ALPHA16I_EXT: - case GL_INTENSITY16I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); - break; - case GL_RGBA8I_EXT: - case GL_RGB8I_EXT: - case GL_ALPHA8I_EXT: - case GL_INTENSITY8I_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); - break; - } - } - - if (ctx->Extensions.ARB_texture_rg) { - switch (internalFormat) { - case GL_R8: - case GL_RED: - case GL_COMPRESSED_RED: - RETURN_IF_SUPPORTED(MESA_FORMAT_R8); - break; - - case GL_R16: - RETURN_IF_SUPPORTED(MESA_FORMAT_R16); - break; - - case GL_RG: - case GL_RG8: - case GL_COMPRESSED_RG: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); - break; - - case GL_RG16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_format_BGRA8888) { - switch (internalFormat) { - case GL_BGRA: - RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_compression_rgtc) { - switch (internalFormat) { - case GL_COMPRESSED_RED_RGTC1: - RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); - break; - case GL_COMPRESSED_SIGNED_RED_RGTC1: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1); - break; - case GL_COMPRESSED_RG_RGTC2: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); - break; - case GL_COMPRESSED_SIGNED_RG_RGTC2: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_compression_latc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1); - break; - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1); - break; - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); - break; - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2); - break; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_texture_compression_3dc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2); - break; - default: - ; /* fallthrough */ - } - } - - _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); - return MESA_FORMAT_NONE; -} - +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008-2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texformat.c
+ * Texture formats.
+ *
+ * \author Gareth Hughes
+ * \author Brian Paul
+ */
+
+
+#include "context.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "texcompress.h"
+#include "texformat.h"
+
+#define RETURN_IF_SUPPORTED(f) do { \
+ if (ctx->TextureFormatSupported[f]) \
+ return f; \
+} while (0)
+
+/**
+ * Choose an appropriate texture format given the format, type and
+ * internalFormat parameters passed to glTexImage().
+ *
+ * \param ctx the GL context.
+ * \param internalFormat user's prefered internal texture format.
+ * \param format incoming image pixel format.
+ * \param type incoming image data type.
+ *
+ * \return a pointer to a gl_texture_format object which describes the
+ * choosen texture format, or NULL on failure.
+ *
+ * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
+ * will typically override this function with a specialized version.
+ */
+gl_format
+_mesa_choose_tex_format( struct gl_context *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ (void) format;
+ (void) type;
+
+ switch (internalFormat) {
+ /* shallow RGBA formats */
+ case 4:
+ case GL_RGBA:
+ if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
+ }
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ case GL_RGBA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGB5_A1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555);
+ break;
+ case GL_RGBA2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ break;
+ case GL_RGBA4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444);
+ break;
+
+ /* deep RGBA formats */
+ case GL_RGB10_A2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGBA12:
+ case GL_RGBA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ /* shallow RGB formats */
+ case 3:
+ case GL_RGB:
+ case GL_RGB8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_R3_G3_B2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_RGB4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
+ break;
+ case GL_RGB5:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565);
+ break;
+
+ /* deep RGB formats */
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ /* Alpha formats */
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+
+ /* Luminance formats */
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+
+ /* Luminance/Alpha formats */
+ case GL_LUMINANCE4_ALPHA4:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL44);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_CI8);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z32);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ break;
+ case GL_DEPTH_COMPONENT16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z16);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_A8);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L8);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_AL88);
+ break;
+ case GL_COMPRESSED_INTENSITY_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_I8);
+ break;
+ case GL_COMPRESSED_RGB_ARB:
+ if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ case GL_COMPRESSED_RGBA_ARB:
+ if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA) {
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR);
+ else
+ RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV);
+ }
+ }
+
+#if FEATURE_texture_fxt1
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1);
+ break;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif
+
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1);
+ break;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16);
+ break;
+ case GL_ALPHA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32);
+ break;
+ case GL_LUMINANCE16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16);
+ break;
+ case GL_LUMINANCE32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32);
+ break;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16);
+ break;
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32);
+ break;
+ case GL_INTENSITY16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16);
+ break;
+ case GL_INTENSITY32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32);
+ break;
+ case GL_RGB16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16);
+ break;
+ case GL_RGB32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32);
+ break;
+ case GL_RGBA16F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16);
+ break;
+ case GL_RGBA32F_ARB:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_envmap_bumpmap) {
+ switch (internalFormat) {
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_texture_signed_rgba) {
+ switch (internalFormat) {
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->VersionMajor * 10 + ctx->VersionMinor >= 31) {
+ switch (internalFormat) {
+ case GL_RED_SNORM:
+ case GL_R8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8);
+ break;
+ case GL_RG_SNORM:
+ case GL_RG8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88);
+ break;
+ case GL_RGB_SNORM:
+ case GL_RGB8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888);
+ break;
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888);
+ break;
+ case GL_R16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R_16);
+ break;
+ case GL_RG16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_16);
+ break;
+ case GL_RGB16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16);
+ break;
+ case GL_RGBA16_SNORM:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16);
+ break;
+ default:
+ ; /* fall-through */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SL8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
+#endif
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+#if FEATURE_texture_s3tc
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */
+#endif
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+#if FEATURE_texture_s3tc
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5);
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8);
+ break;
+#endif
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA32UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32);
+ break;
+ case GL_RGBA16UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16);
+ break;
+ case GL_RGBA8UI_EXT:
+ case GL_RGB8UI_EXT:
+ case GL_ALPHA8UI_EXT:
+ case GL_INTENSITY8UI_EXT:
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8);
+ break;
+ case GL_RGBA32I_EXT:
+ case GL_RGB32I_EXT:
+ case GL_ALPHA32I_EXT:
+ case GL_INTENSITY32I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32);
+ break;
+ case GL_RGBA16I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16);
+ break;
+ case GL_RGBA8I_EXT:
+ case GL_RGB8I_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8);
+ break;
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R8:
+ case GL_RED:
+ case GL_COMPRESSED_RED:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R8);
+ break;
+
+ case GL_R16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_R16);
+ break;
+
+ case GL_RG:
+ case GL_RG8:
+ case GL_COMPRESSED_RG:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG88);
+ break;
+
+ case GL_RG16:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_format_BGRA8888) {
+ switch (internalFormat) {
+ case GL_BGRA:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888);
+ break;
+
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1);
+ break;
+ case GL_COMPRESSED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2);
+ break;
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_latc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1);
+ break;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2);
+ break;
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_texture_compression_3dc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2);
+ break;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
+ return MESA_FORMAT_NONE;
+}
+
diff --git a/mesalib/src/mesa/main/texgetimage.c b/mesalib/src/mesa/main/texgetimage.c index 21d9140c5..fe5ac0a89 100644 --- a/mesalib/src/mesa/main/texgetimage.c +++ b/mesalib/src/mesa/main/texgetimage.c @@ -1,918 +1,918 @@ -/* - * Mesa 3-D graphics library - * Version: 7.7 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (c) 2009 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * Code for glGetTexImage() and glGetCompressedTexImage(). - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "enums.h" -#include "context.h" -#include "formats.h" -#include "image.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "pack.h" -#include "pbo.h" -#include "texgetimage.h" -#include "teximage.h" - - - -/** - * Can the given type represent negative values? - */ -static INLINE GLboolean -type_with_negative_values(GLenum type) -{ - switch (type) { - case GL_BYTE: - case GL_SHORT: - case GL_INT: - case GL_FLOAT: - case GL_HALF_FLOAT_ARB: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * glGetTexImage for color index pixels. - */ -static void -get_tex_color_index(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - const GLuint indexBits = - _mesa_get_format_bits(texImage->TexFormat, GL_TEXTURE_INDEX_SIZE_EXT); - const GLbitfield transferOps = 0x0; - GLint img, row, col; - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - GLuint indexRow[MAX_WIDTH] = { 0 }; - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - assert(dest); - - if (indexBits == 8) { - const GLubyte *src = (const GLubyte *) texImage->Data; - src += width * (img * texImage->Height + row); - for (col = 0; col < width; col++) { - indexRow[col] = src[col]; - } - } - else if (indexBits == 16) { - const GLushort *src = (const GLushort *) texImage->Data; - src += width * (img * texImage->Height + row); - for (col = 0; col < width; col++) { - indexRow[col] = src[col]; - } - } - else { - _mesa_problem(ctx, "Color index problem in _mesa_GetTexImage"); - } - _mesa_pack_index_span(ctx, width, type, dest, - indexRow, &ctx->Pack, transferOps); - } - } -} - - -/** - * glGetTexImage for depth/Z pixels. - */ -static void -get_tex_depth(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - GLint img, row, col; - GLfloat *depthRow = (GLfloat *) malloc(width * sizeof(GLfloat)); - - if (!depthRow) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); - return; - } - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - assert(dest); - - for (col = 0; col < width; col++) { - texImage->FetchTexelf(texImage, col, row, img, depthRow + col); - } - _mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack); - } - } - - free(depthRow); -} - - -/** - * glGetTexImage for depth/stencil pixels. - */ -static void -get_tex_depth_stencil(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - const GLuint *src = (const GLuint *) texImage->Data; - GLint img, row; - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - memcpy(dest, src, width * sizeof(GLuint)); - if (ctx->Pack.SwapBytes) { - _mesa_swap4((GLuint *) dest, width); - } - - src += width * row + width * height * img; - } - } -} - - -/** - * glGetTexImage for YCbCr pixels. - */ -static void -get_tex_ycbcr(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - const GLint rowstride = texImage->RowStride; - const GLushort *src = (const GLushort *) texImage->Data; - GLint img, row; - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - memcpy(dest, src, width * sizeof(GLushort)); - - /* check for byte swapping */ - if ((texImage->TexFormat == MESA_FORMAT_YCBCR - && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) || - (texImage->TexFormat == MESA_FORMAT_YCBCR_REV - && type == GL_UNSIGNED_SHORT_8_8_MESA)) { - if (!ctx->Pack.SwapBytes) - _mesa_swap2((GLushort *) dest, width); - } - else if (ctx->Pack.SwapBytes) { - _mesa_swap2((GLushort *) dest, width); - } - - src += rowstride; - } - } -} - - -#if FEATURE_EXT_texture_sRGB - - -/** - * Convert a float value from linear space to a - * non-linear sRGB value in [0, 255]. - * Not terribly efficient. - */ -static INLINE GLfloat -linear_to_nonlinear(GLfloat cl) -{ - /* can't have values outside [0, 1] */ - GLfloat cs; - if (cl < 0.0031308f) { - cs = 12.92f * cl; - } - else { - cs = (GLfloat)(1.055 * pow(cl, 0.41666) - 0.055); - } - return cs; -} - - -/** - * glGetTexImagefor sRGB pixels; - */ -static void -get_tex_srgb(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - const GLbitfield transferOps = 0x0; - GLint img, row; - GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); - return; - } - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - - GLint col; - - /* convert row to RGBA format */ - for (col = 0; col < width; col++) { - texImage->FetchTexelf(texImage, col, row, img, rgba[col]); - if (texImage->_BaseFormat == GL_LUMINANCE) { - rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]); - rgba[col][GCOMP] = 0.0; - rgba[col][BCOMP] = 0.0; - } - else if (texImage->_BaseFormat == GL_LUMINANCE_ALPHA) { - rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]); - rgba[col][GCOMP] = 0.0; - rgba[col][BCOMP] = 0.0; - } - else if (texImage->_BaseFormat == GL_RGB || - texImage->_BaseFormat == GL_RGBA) { - rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]); - rgba[col][GCOMP] = linear_to_nonlinear(rgba[col][GCOMP]); - rgba[col][BCOMP] = linear_to_nonlinear(rgba[col][BCOMP]); - } - } - _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, - format, type, dest, - &ctx->Pack, transferOps); - } - } - - free(rgba); -} - - -#else /* FEATURE_EXT_texture_sRGB */ - - -static INLINE void -get_tex_srgb(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - ASSERT_NO_FEATURE(); -} - - -#endif /* FEATURE_EXT_texture_sRGB */ - - -/** - * glGetTexImagefor RGBA, Luminance, etc. pixels. - * This is the slow way since we use texture sampling. - */ -static void -get_tex_rgba(struct gl_context *ctx, GLuint dimensions, - GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) -{ - const GLint width = texImage->Width; - const GLint height = texImage->Height; - const GLint depth = texImage->Depth; - /* Normally, no pixel transfer ops are performed during glGetTexImage. - * The only possible exception is component clamping to [0,1]. - */ - GLbitfield transferOps = 0x0; - GLint img, row; - GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); - return; - } - - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, - width, height, format, type, - img, row, 0); - GLint col; - GLenum dataType = _mesa_get_format_datatype(texImage->TexFormat); - - /* clamp does not apply to GetTexImage (final conversion)? - * Looks like we need clamp though when going from format - * containing negative values to unsigned format. - */ - if (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA) { - transferOps |= IMAGE_CLAMP_BIT; - } - else if (!type_with_negative_values(type) && - (dataType == GL_FLOAT || - dataType == GL_SIGNED_NORMALIZED)) { - transferOps |= IMAGE_CLAMP_BIT; - } - - for (col = 0; col < width; col++) { - texImage->FetchTexelf(texImage, col, row, img, rgba[col]); - if (texImage->_BaseFormat == GL_ALPHA) { - rgba[col][RCOMP] = 0.0F; - rgba[col][GCOMP] = 0.0F; - rgba[col][BCOMP] = 0.0F; - } - else if (texImage->_BaseFormat == GL_LUMINANCE) { - rgba[col][GCOMP] = 0.0F; - rgba[col][BCOMP] = 0.0F; - rgba[col][ACOMP] = 1.0F; - } - else if (texImage->_BaseFormat == GL_LUMINANCE_ALPHA) { - rgba[col][GCOMP] = 0.0F; - rgba[col][BCOMP] = 0.0F; - } - else if (texImage->_BaseFormat == GL_INTENSITY) { - rgba[col][GCOMP] = 0.0F; - rgba[col][BCOMP] = 0.0F; - rgba[col][ACOMP] = 1.0F; - } - } - _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, - format, type, dest, - &ctx->Pack, transferOps); - } - } - - free(rgba); -} - - -/** - * Try to do glGetTexImage() with simple memcpy(). - * \return GL_TRUE if done, GL_FALSE otherwise - */ -static GLboolean -get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_object *texObj, - const struct gl_texture_image *texImage) -{ - GLboolean memCopy = GL_FALSE; - - /* Texture image should have been mapped already */ - assert(texImage->Data); - - /* - * Check if the src/dst formats are compatible. - * Also note that GL's pixel transfer ops don't apply to glGetTexImage() - * so we don't have to worry about those. - * XXX more format combinations could be supported here. - */ - if ((texObj->Target == GL_TEXTURE_1D || - texObj->Target == GL_TEXTURE_2D || - texObj->Target == GL_TEXTURE_RECTANGLE || - (texObj->Target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && - texObj->Target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) { - if (texImage->TexFormat == MESA_FORMAT_ARGB8888 && - format == GL_BGRA && - type == GL_UNSIGNED_BYTE && - !ctx->Pack.SwapBytes && - _mesa_little_endian()) { - memCopy = GL_TRUE; - } - else if (texImage->TexFormat == MESA_FORMAT_AL88 && - format == GL_LUMINANCE_ALPHA && - type == GL_UNSIGNED_BYTE && - !ctx->Pack.SwapBytes && - _mesa_little_endian()) { - memCopy = GL_TRUE; - } - else if (texImage->TexFormat == MESA_FORMAT_L8 && - format == GL_LUMINANCE && - type == GL_UNSIGNED_BYTE) { - memCopy = GL_TRUE; - } - else if (texImage->TexFormat == MESA_FORMAT_L16 && - format == GL_LUMINANCE && - type == GL_UNSIGNED_SHORT) { - memCopy = GL_TRUE; - } - else if (texImage->TexFormat == MESA_FORMAT_A8 && - format == GL_ALPHA && - type == GL_UNSIGNED_BYTE) { - memCopy = GL_TRUE; - } - else if (texImage->TexFormat == MESA_FORMAT_A16 && - format == GL_ALPHA && - type == GL_UNSIGNED_SHORT) { - memCopy = GL_TRUE; - } - } - - if (memCopy) { - const GLuint bpp = _mesa_get_format_bytes(texImage->TexFormat); - const GLuint bytesPerRow = texImage->Width * bpp; - GLubyte *dst = - _mesa_image_address2d(&ctx->Pack, pixels, texImage->Width, - texImage->Height, format, type, 0, 0); - const GLint dstRowStride = - _mesa_image_row_stride(&ctx->Pack, texImage->Width, format, type); - const GLubyte *src = texImage->Data; - const GLint srcRowStride = texImage->RowStride * bpp; - GLuint row; - - if (bytesPerRow == dstRowStride && bytesPerRow == srcRowStride) { - memcpy(dst, src, bytesPerRow * texImage->Height); - } - else { - for (row = 0; row < texImage->Height; row++) { - memcpy(dst, src, bytesPerRow); - dst += dstRowStride; - src += srcRowStride; - } - } - } - - return memCopy; -} - - -/** - * This is the software fallback for Driver.GetTexImage(). - * All error checking will have been done before this routine is called. - * The texture image must be mapped. - */ -void -_mesa_get_teximage(struct gl_context *ctx, GLenum target, GLint level, - GLenum format, GLenum type, GLvoid *pixels, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - GLuint dimensions; - - /* If we get here, the texture image should be mapped */ - assert(texImage->Data); - - switch (target) { - case GL_TEXTURE_1D: - dimensions = 1; - break; - case GL_TEXTURE_3D: - dimensions = 3; - break; - default: - dimensions = 2; - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - /* Packing texture image into a PBO. - * Map the (potentially) VRAM-based buffer into our process space so - * we can write into it with the code below. - * A hardware driver might use a sophisticated blit to move the - * texture data to the PBO if the PBO is in VRAM along with the texture. - */ - GLubyte *buf = (GLubyte *) - ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - GL_WRITE_ONLY_ARB, ctx->Pack.BufferObj); - if (!buf) { - /* out of memory or other unexpected error */ - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage(map PBO failed)"); - return; - } - /* <pixels> was an offset into the PBO. - * Now make it a real, client-side pointer inside the mapped region. - */ - pixels = ADD_POINTERS(buf, pixels); - } - - if (get_tex_memcpy(ctx, format, type, pixels, texObj, texImage)) { - /* all done */ - } - else if (format == GL_COLOR_INDEX) { - get_tex_color_index(ctx, dimensions, format, type, pixels, texImage); - } - else if (format == GL_DEPTH_COMPONENT) { - get_tex_depth(ctx, dimensions, format, type, pixels, texImage); - } - else if (format == GL_DEPTH_STENCIL_EXT) { - get_tex_depth_stencil(ctx, dimensions, format, type, pixels, texImage); - } - else if (format == GL_YCBCR_MESA) { - get_tex_ycbcr(ctx, dimensions, format, type, pixels, texImage); - } - else if (_mesa_get_format_color_encoding(texImage->TexFormat) == GL_SRGB) { - get_tex_srgb(ctx, dimensions, format, type, pixels, texImage); - } - else { - get_tex_rgba(ctx, dimensions, format, type, pixels, texImage); - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - ctx->Pack.BufferObj); - } -} - - - -/** - * This is the software fallback for Driver.GetCompressedTexImage(). - * All error checking will have been done before this routine is called. - */ -void -_mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level, - GLvoid *img, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - const GLuint row_stride = _mesa_format_row_stride(texImage->TexFormat, - texImage->Width); - const GLuint row_stride_stored = _mesa_format_row_stride(texImage->TexFormat, - texImage->RowStride); - GLuint i; - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - /* pack texture image into a PBO */ - GLubyte *buf = (GLubyte *) - ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - GL_WRITE_ONLY_ARB, ctx->Pack.BufferObj); - if (!buf) { - /* out of memory or other unexpected error */ - _mesa_error(ctx, GL_OUT_OF_MEMORY, - "glGetCompresssedTexImage(map PBO failed)"); - return; - } - img = ADD_POINTERS(buf, img); - } - - /* no pixelstore or pixel transfer, but respect stride */ - - if (row_stride == row_stride_stored) { - const GLuint size = _mesa_format_image_size(texImage->TexFormat, - texImage->Width, - texImage->Height, - texImage->Depth); - memcpy(img, texImage->Data, size); - } - else { - GLuint bw, bh; - _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); - for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) { - memcpy((GLubyte *)img + i * row_stride, - (GLubyte *)texImage->Data + i * row_stride_stored, - row_stride); - } - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, - ctx->Pack.BufferObj); - } -} - - - -/** - * Do error checking for a glGetTexImage() call. - * \return GL_TRUE if any error, GL_FALSE if no errors. - */ -static GLboolean -getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level, - GLenum format, GLenum type, GLvoid *pixels ) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - const GLint maxLevels = _mesa_max_texture_levels(ctx, target); - GLenum baseFormat; - - if (maxLevels == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target); - return GL_TRUE; - } - - if (level < 0 || level >= maxLevels) { - _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" ); - return GL_TRUE; - } - - if (_mesa_sizeof_packed_type(type) <= 0) { - _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" ); - return GL_TRUE; - } - - if (_mesa_components_in_format(format) <= 0 || - format == GL_STENCIL_INDEX) { - _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" ); - return GL_TRUE; - } - - if (!ctx->Extensions.EXT_paletted_texture && _mesa_is_index_format(format)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); - return GL_TRUE; - } - - if (!ctx->Extensions.ARB_depth_texture && _mesa_is_depth_format(format)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); - return GL_TRUE; - } - - if (!ctx->Extensions.MESA_ycbcr_texture && _mesa_is_ycbcr_format(format)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); - return GL_TRUE; - } - - if (!ctx->Extensions.EXT_packed_depth_stencil - && _mesa_is_depthstencil_format(format)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); - return GL_TRUE; - } - - if (!ctx->Extensions.ATI_envmap_bumpmap - && _mesa_is_dudv_format(format)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); - return GL_TRUE; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - if (!texObj || _mesa_is_proxy_texture(target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)"); - return GL_TRUE; - } - - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - if (!texImage) { - /* out of memory */ - return GL_TRUE; - } - - baseFormat = _mesa_get_format_base_format(texImage->TexFormat); - - /* Make sure the requested image format is compatible with the - * texture's format. Note that a color index texture can be converted - * to RGBA so that combo is allowed. - */ - if (_mesa_is_color_format(format) - && !_mesa_is_color_format(baseFormat) - && !_mesa_is_index_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - else if (_mesa_is_index_format(format) - && !_mesa_is_index_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - else if (_mesa_is_depth_format(format) - && !_mesa_is_depth_format(baseFormat) - && !_mesa_is_depthstencil_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - else if (_mesa_is_ycbcr_format(format) - && !_mesa_is_ycbcr_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - else if (_mesa_is_depthstencil_format(format) - && !_mesa_is_depthstencil_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - else if (_mesa_is_dudv_format(format) - && !_mesa_is_dudv_format(baseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); - return GL_TRUE; - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - /* packing texture image into a PBO */ - const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2; - if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width, - texImage->Height, texImage->Depth, - format, type, pixels)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetTexImage(out of bounds PBO write)"); - return GL_TRUE; - } - - /* PBO should not be mapped */ - if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetTexImage(PBO is mapped)"); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - - -/** - * Get texture image. Called by glGetTexImage. - * - * \param target texture target. - * \param level image level. - * \param format pixel data format for returned image. - * \param type pixel data type for returned image. - * \param pixels returned pixel data. - */ -void GLAPIENTRY -_mesa_GetTexImage( GLenum target, GLint level, GLenum format, - GLenum type, GLvoid *pixels ) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (getteximage_error_check(ctx, target, level, format, type, pixels)) { - return; - } - - if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) { - /* not an error, do nothing */ - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) { - _mesa_debug(ctx, "glGetTexImage(tex %u) format = %s, w=%d, h=%d," - " dstFmt=0x%x, dstType=0x%x\n", - texObj->Name, - _mesa_get_format_name(texImage->TexFormat), - texImage->Width, texImage->Height, - format, type); - } - - _mesa_lock_texture(ctx, texObj); - { - ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels, - texObj, texImage); - } - _mesa_unlock_texture(ctx, texObj); -} - - - -/** - * Do error checking for a glGetCompressedTexImage() call. - * \return GL_TRUE if any error, GL_FALSE if no errors. - */ -static GLboolean -getcompressedteximage_error_check(struct gl_context *ctx, GLenum target, - GLint level, GLvoid *img) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - const GLint maxLevels = _mesa_max_texture_levels(ctx, target); - - if (maxLevels == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)", - target); - return GL_TRUE; - } - - if (level < 0 || level >= maxLevels) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glGetCompressedTexImageARB(bad level = %d)", level); - return GL_TRUE; - } - - if (_mesa_is_proxy_texture(target)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetCompressedTexImageARB(bad target = %s)", - _mesa_lookup_enum_by_nr(target)); - return GL_TRUE; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - if (!texObj) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)"); - return GL_TRUE; - } - - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - if (!texImage) { - /* probably invalid mipmap level */ - _mesa_error(ctx, GL_INVALID_VALUE, - "glGetCompressedTexImageARB(level)"); - return GL_TRUE; - } - - if (!_mesa_is_format_compressed(texImage->TexFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetCompressedTexImageARB(texture is not compressed)"); - return GL_TRUE; - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { - GLuint compressedSize; - - /* make sure PBO is not mapped */ - if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetCompressedTexImage(PBO is mapped)"); - return GL_TRUE; - } - - compressedSize = _mesa_format_image_size(texImage->TexFormat, - texImage->Width, - texImage->Height, - texImage->Depth); - - /* do bounds checking on PBO write */ - if ((const GLubyte *) img + compressedSize > - (const GLubyte *) ctx->Pack.BufferObj->Size) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetCompressedTexImage(out of bounds PBO write)"); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (getcompressedteximage_error_check(ctx, target, level, img)) { - return; - } - - if (_mesa_is_bufferobj(ctx->Pack.BufferObj) && !img) { - /* not an error, do nothing */ - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) { - _mesa_debug(ctx, - "glGetCompressedTexImage(tex %u) format = %s, w=%d, h=%d\n", - texObj->Name, - _mesa_get_format_name(texImage->TexFormat), - texImage->Width, texImage->Height); - } - - _mesa_lock_texture(ctx, texObj); - { - ctx->Driver.GetCompressedTexImage(ctx, target, level, img, - texObj, texImage); - } - _mesa_unlock_texture(ctx, texObj); -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.7
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * Code for glGetTexImage() and glGetCompressedTexImage().
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "enums.h"
+#include "context.h"
+#include "formats.h"
+#include "image.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "pack.h"
+#include "pbo.h"
+#include "texgetimage.h"
+#include "teximage.h"
+
+
+
+/**
+ * Can the given type represent negative values?
+ */
+static INLINE GLboolean
+type_with_negative_values(GLenum type)
+{
+ switch (type) {
+ case GL_BYTE:
+ case GL_SHORT:
+ case GL_INT:
+ case GL_FLOAT:
+ case GL_HALF_FLOAT_ARB:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * glGetTexImage for color index pixels.
+ */
+static void
+get_tex_color_index(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ const GLuint indexBits =
+ _mesa_get_format_bits(texImage->TexFormat, GL_TEXTURE_INDEX_SIZE_EXT);
+ const GLbitfield transferOps = 0x0;
+ GLint img, row, col;
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ GLuint indexRow[MAX_WIDTH] = { 0 };
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ assert(dest);
+
+ if (indexBits == 8) {
+ const GLubyte *src = (const GLubyte *) texImage->Data;
+ src += width * (img * texImage->Height + row);
+ for (col = 0; col < width; col++) {
+ indexRow[col] = src[col];
+ }
+ }
+ else if (indexBits == 16) {
+ const GLushort *src = (const GLushort *) texImage->Data;
+ src += width * (img * texImage->Height + row);
+ for (col = 0; col < width; col++) {
+ indexRow[col] = src[col];
+ }
+ }
+ else {
+ _mesa_problem(ctx, "Color index problem in _mesa_GetTexImage");
+ }
+ _mesa_pack_index_span(ctx, width, type, dest,
+ indexRow, &ctx->Pack, transferOps);
+ }
+ }
+}
+
+
+/**
+ * glGetTexImage for depth/Z pixels.
+ */
+static void
+get_tex_depth(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ GLint img, row, col;
+ GLfloat *depthRow = (GLfloat *) malloc(width * sizeof(GLfloat));
+
+ if (!depthRow) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ return;
+ }
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ assert(dest);
+
+ for (col = 0; col < width; col++) {
+ texImage->FetchTexelf(texImage, col, row, img, depthRow + col);
+ }
+ _mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack);
+ }
+ }
+
+ free(depthRow);
+}
+
+
+/**
+ * glGetTexImage for depth/stencil pixels.
+ */
+static void
+get_tex_depth_stencil(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ const GLuint *src = (const GLuint *) texImage->Data;
+ GLint img, row;
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ memcpy(dest, src, width * sizeof(GLuint));
+ if (ctx->Pack.SwapBytes) {
+ _mesa_swap4((GLuint *) dest, width);
+ }
+
+ src += width * row + width * height * img;
+ }
+ }
+}
+
+
+/**
+ * glGetTexImage for YCbCr pixels.
+ */
+static void
+get_tex_ycbcr(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ const GLint rowstride = texImage->RowStride;
+ const GLushort *src = (const GLushort *) texImage->Data;
+ GLint img, row;
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ memcpy(dest, src, width * sizeof(GLushort));
+
+ /* check for byte swapping */
+ if ((texImage->TexFormat == MESA_FORMAT_YCBCR
+ && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) ||
+ (texImage->TexFormat == MESA_FORMAT_YCBCR_REV
+ && type == GL_UNSIGNED_SHORT_8_8_MESA)) {
+ if (!ctx->Pack.SwapBytes)
+ _mesa_swap2((GLushort *) dest, width);
+ }
+ else if (ctx->Pack.SwapBytes) {
+ _mesa_swap2((GLushort *) dest, width);
+ }
+
+ src += rowstride;
+ }
+ }
+}
+
+
+#if FEATURE_EXT_texture_sRGB
+
+
+/**
+ * Convert a float value from linear space to a
+ * non-linear sRGB value in [0, 255].
+ * Not terribly efficient.
+ */
+static INLINE GLfloat
+linear_to_nonlinear(GLfloat cl)
+{
+ /* can't have values outside [0, 1] */
+ GLfloat cs;
+ if (cl < 0.0031308f) {
+ cs = 12.92f * cl;
+ }
+ else {
+ cs = (GLfloat)(1.055 * pow(cl, 0.41666) - 0.055);
+ }
+ return cs;
+}
+
+
+/**
+ * glGetTexImagefor sRGB pixels;
+ */
+static void
+get_tex_srgb(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ const GLbitfield transferOps = 0x0;
+ GLint img, row;
+ GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
+
+ if (!rgba) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ return;
+ }
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+
+ GLint col;
+
+ /* convert row to RGBA format */
+ for (col = 0; col < width; col++) {
+ texImage->FetchTexelf(texImage, col, row, img, rgba[col]);
+ if (texImage->_BaseFormat == GL_LUMINANCE) {
+ rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]);
+ rgba[col][GCOMP] = 0.0;
+ rgba[col][BCOMP] = 0.0;
+ }
+ else if (texImage->_BaseFormat == GL_LUMINANCE_ALPHA) {
+ rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]);
+ rgba[col][GCOMP] = 0.0;
+ rgba[col][BCOMP] = 0.0;
+ }
+ else if (texImage->_BaseFormat == GL_RGB ||
+ texImage->_BaseFormat == GL_RGBA) {
+ rgba[col][RCOMP] = linear_to_nonlinear(rgba[col][RCOMP]);
+ rgba[col][GCOMP] = linear_to_nonlinear(rgba[col][GCOMP]);
+ rgba[col][BCOMP] = linear_to_nonlinear(rgba[col][BCOMP]);
+ }
+ }
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba,
+ format, type, dest,
+ &ctx->Pack, transferOps);
+ }
+ }
+
+ free(rgba);
+}
+
+
+#else /* FEATURE_EXT_texture_sRGB */
+
+
+static INLINE void
+get_tex_srgb(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ ASSERT_NO_FEATURE();
+}
+
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+
+/**
+ * glGetTexImagefor RGBA, Luminance, etc. pixels.
+ * This is the slow way since we use texture sampling.
+ */
+static void
+get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_image *texImage)
+{
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ /* Normally, no pixel transfer ops are performed during glGetTexImage.
+ * The only possible exception is component clamping to [0,1].
+ */
+ GLbitfield transferOps = 0x0;
+ GLint img, row;
+ GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
+
+ if (!rgba) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ return;
+ }
+
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ GLint col;
+ GLenum dataType = _mesa_get_format_datatype(texImage->TexFormat);
+
+ /* clamp does not apply to GetTexImage (final conversion)?
+ * Looks like we need clamp though when going from format
+ * containing negative values to unsigned format.
+ */
+ if (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA) {
+ transferOps |= IMAGE_CLAMP_BIT;
+ }
+ else if (!type_with_negative_values(type) &&
+ (dataType == GL_FLOAT ||
+ dataType == GL_SIGNED_NORMALIZED)) {
+ transferOps |= IMAGE_CLAMP_BIT;
+ }
+
+ for (col = 0; col < width; col++) {
+ texImage->FetchTexelf(texImage, col, row, img, rgba[col]);
+ if (texImage->_BaseFormat == GL_ALPHA) {
+ rgba[col][RCOMP] = 0.0F;
+ rgba[col][GCOMP] = 0.0F;
+ rgba[col][BCOMP] = 0.0F;
+ }
+ else if (texImage->_BaseFormat == GL_LUMINANCE) {
+ rgba[col][GCOMP] = 0.0F;
+ rgba[col][BCOMP] = 0.0F;
+ rgba[col][ACOMP] = 1.0F;
+ }
+ else if (texImage->_BaseFormat == GL_LUMINANCE_ALPHA) {
+ rgba[col][GCOMP] = 0.0F;
+ rgba[col][BCOMP] = 0.0F;
+ }
+ else if (texImage->_BaseFormat == GL_INTENSITY) {
+ rgba[col][GCOMP] = 0.0F;
+ rgba[col][BCOMP] = 0.0F;
+ rgba[col][ACOMP] = 1.0F;
+ }
+ }
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba,
+ format, type, dest,
+ &ctx->Pack, transferOps);
+ }
+ }
+
+ free(rgba);
+}
+
+
+/**
+ * Try to do glGetTexImage() with simple memcpy().
+ * \return GL_TRUE if done, GL_FALSE otherwise
+ */
+static GLboolean
+get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_object *texObj,
+ const struct gl_texture_image *texImage)
+{
+ GLboolean memCopy = GL_FALSE;
+
+ /* Texture image should have been mapped already */
+ assert(texImage->Data);
+
+ /*
+ * Check if the src/dst formats are compatible.
+ * Also note that GL's pixel transfer ops don't apply to glGetTexImage()
+ * so we don't have to worry about those.
+ * XXX more format combinations could be supported here.
+ */
+ if ((texObj->Target == GL_TEXTURE_1D ||
+ texObj->Target == GL_TEXTURE_2D ||
+ texObj->Target == GL_TEXTURE_RECTANGLE ||
+ (texObj->Target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
+ texObj->Target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
+ if (texImage->TexFormat == MESA_FORMAT_ARGB8888 &&
+ format == GL_BGRA &&
+ type == GL_UNSIGNED_BYTE &&
+ !ctx->Pack.SwapBytes &&
+ _mesa_little_endian()) {
+ memCopy = GL_TRUE;
+ }
+ else if (texImage->TexFormat == MESA_FORMAT_AL88 &&
+ format == GL_LUMINANCE_ALPHA &&
+ type == GL_UNSIGNED_BYTE &&
+ !ctx->Pack.SwapBytes &&
+ _mesa_little_endian()) {
+ memCopy = GL_TRUE;
+ }
+ else if (texImage->TexFormat == MESA_FORMAT_L8 &&
+ format == GL_LUMINANCE &&
+ type == GL_UNSIGNED_BYTE) {
+ memCopy = GL_TRUE;
+ }
+ else if (texImage->TexFormat == MESA_FORMAT_L16 &&
+ format == GL_LUMINANCE &&
+ type == GL_UNSIGNED_SHORT) {
+ memCopy = GL_TRUE;
+ }
+ else if (texImage->TexFormat == MESA_FORMAT_A8 &&
+ format == GL_ALPHA &&
+ type == GL_UNSIGNED_BYTE) {
+ memCopy = GL_TRUE;
+ }
+ else if (texImage->TexFormat == MESA_FORMAT_A16 &&
+ format == GL_ALPHA &&
+ type == GL_UNSIGNED_SHORT) {
+ memCopy = GL_TRUE;
+ }
+ }
+
+ if (memCopy) {
+ const GLuint bpp = _mesa_get_format_bytes(texImage->TexFormat);
+ const GLuint bytesPerRow = texImage->Width * bpp;
+ GLubyte *dst =
+ _mesa_image_address2d(&ctx->Pack, pixels, texImage->Width,
+ texImage->Height, format, type, 0, 0);
+ const GLint dstRowStride =
+ _mesa_image_row_stride(&ctx->Pack, texImage->Width, format, type);
+ const GLubyte *src = texImage->Data;
+ const GLint srcRowStride = texImage->RowStride * bpp;
+ GLuint row;
+
+ if (bytesPerRow == dstRowStride && bytesPerRow == srcRowStride) {
+ memcpy(dst, src, bytesPerRow * texImage->Height);
+ }
+ else {
+ for (row = 0; row < texImage->Height; row++) {
+ memcpy(dst, src, bytesPerRow);
+ dst += dstRowStride;
+ src += srcRowStride;
+ }
+ }
+ }
+
+ return memCopy;
+}
+
+
+/**
+ * This is the software fallback for Driver.GetTexImage().
+ * All error checking will have been done before this routine is called.
+ * The texture image must be mapped.
+ */
+void
+_mesa_get_teximage(struct gl_context *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ GLuint dimensions;
+
+ /* If we get here, the texture image should be mapped */
+ assert(texImage->Data);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ dimensions = 1;
+ break;
+ case GL_TEXTURE_3D:
+ dimensions = 3;
+ break;
+ default:
+ dimensions = 2;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* Packing texture image into a PBO.
+ * Map the (potentially) VRAM-based buffer into our process space so
+ * we can write into it with the code below.
+ * A hardware driver might use a sophisticated blit to move the
+ * texture data to the PBO if the PBO is in VRAM along with the texture.
+ */
+ GLubyte *buf = (GLubyte *)
+ ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ GL_WRITE_ONLY_ARB, ctx->Pack.BufferObj);
+ if (!buf) {
+ /* out of memory or other unexpected error */
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage(map PBO failed)");
+ return;
+ }
+ /* <pixels> was an offset into the PBO.
+ * Now make it a real, client-side pointer inside the mapped region.
+ */
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+
+ if (get_tex_memcpy(ctx, format, type, pixels, texObj, texImage)) {
+ /* all done */
+ }
+ else if (format == GL_COLOR_INDEX) {
+ get_tex_color_index(ctx, dimensions, format, type, pixels, texImage);
+ }
+ else if (format == GL_DEPTH_COMPONENT) {
+ get_tex_depth(ctx, dimensions, format, type, pixels, texImage);
+ }
+ else if (format == GL_DEPTH_STENCIL_EXT) {
+ get_tex_depth_stencil(ctx, dimensions, format, type, pixels, texImage);
+ }
+ else if (format == GL_YCBCR_MESA) {
+ get_tex_ycbcr(ctx, dimensions, format, type, pixels, texImage);
+ }
+ else if (_mesa_get_format_color_encoding(texImage->TexFormat) == GL_SRGB) {
+ get_tex_srgb(ctx, dimensions, format, type, pixels, texImage);
+ }
+ else {
+ get_tex_rgba(ctx, dimensions, format, type, pixels, texImage);
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ ctx->Pack.BufferObj);
+ }
+}
+
+
+
+/**
+ * This is the software fallback for Driver.GetCompressedTexImage().
+ * All error checking will have been done before this routine is called.
+ */
+void
+_mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level,
+ GLvoid *img,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ const GLuint row_stride = _mesa_format_row_stride(texImage->TexFormat,
+ texImage->Width);
+ const GLuint row_stride_stored = _mesa_format_row_stride(texImage->TexFormat,
+ texImage->RowStride);
+ GLuint i;
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* pack texture image into a PBO */
+ GLubyte *buf = (GLubyte *)
+ ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ GL_WRITE_ONLY_ARB, ctx->Pack.BufferObj);
+ if (!buf) {
+ /* out of memory or other unexpected error */
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "glGetCompresssedTexImage(map PBO failed)");
+ return;
+ }
+ img = ADD_POINTERS(buf, img);
+ }
+
+ /* no pixelstore or pixel transfer, but respect stride */
+
+ if (row_stride == row_stride_stored) {
+ const GLuint size = _mesa_format_image_size(texImage->TexFormat,
+ texImage->Width,
+ texImage->Height,
+ texImage->Depth);
+ memcpy(img, texImage->Data, size);
+ }
+ else {
+ GLuint bw, bh;
+ _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
+ for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) {
+ memcpy((GLubyte *)img + i * row_stride,
+ (GLubyte *)texImage->Data + i * row_stride_stored,
+ row_stride);
+ }
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ ctx->Pack.BufferObj);
+ }
+}
+
+
+
+/**
+ * Do error checking for a glGetTexImage() call.
+ * \return GL_TRUE if any error, GL_FALSE if no errors.
+ */
+static GLboolean
+getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+ GLenum baseFormat;
+
+ if (maxLevels == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
+ return GL_TRUE;
+ }
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
+ return GL_TRUE;
+ }
+
+ if (_mesa_sizeof_packed_type(type) <= 0) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
+ return GL_TRUE;
+ }
+
+ if (_mesa_components_in_format(format) <= 0 ||
+ format == GL_STENCIL_INDEX) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.EXT_paletted_texture && _mesa_is_index_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.ARB_depth_texture && _mesa_is_depth_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.MESA_ycbcr_texture && _mesa_is_ycbcr_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.EXT_packed_depth_stencil
+ && _mesa_is_depthstencil_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ if (!ctx->Extensions.ATI_envmap_bumpmap
+ && _mesa_is_dudv_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return GL_TRUE;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ if (!texObj || _mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
+ return GL_TRUE;
+ }
+
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ /* out of memory */
+ return GL_TRUE;
+ }
+
+ baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+ /* Make sure the requested image format is compatible with the
+ * texture's format. Note that a color index texture can be converted
+ * to RGBA so that combo is allowed.
+ */
+ if (_mesa_is_color_format(format)
+ && !_mesa_is_color_format(baseFormat)
+ && !_mesa_is_index_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_index_format(format)
+ && !_mesa_is_index_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_depth_format(format)
+ && !_mesa_is_depth_format(baseFormat)
+ && !_mesa_is_depthstencil_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_ycbcr_format(format)
+ && !_mesa_is_ycbcr_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_depthstencil_format(format)
+ && !_mesa_is_depthstencil_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+ else if (_mesa_is_dudv_format(format)
+ && !_mesa_is_dudv_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* packing texture image into a PBO */
+ const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
+ texImage->Height, texImage->Depth,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetTexImage(out of bounds PBO write)");
+ return GL_TRUE;
+ }
+
+ /* PBO should not be mapped */
+ if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetTexImage(PBO is mapped)");
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+
+/**
+ * Get texture image. Called by glGetTexImage.
+ *
+ * \param target texture target.
+ * \param level image level.
+ * \param format pixel data format for returned image.
+ * \param type pixel data type for returned image.
+ * \param pixels returned pixel data.
+ */
+void GLAPIENTRY
+_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
+ GLenum type, GLvoid *pixels )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (getteximage_error_check(ctx, target, level, format, type, pixels)) {
+ return;
+ }
+
+ if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
+ /* not an error, do nothing */
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
+ _mesa_debug(ctx, "glGetTexImage(tex %u) format = %s, w=%d, h=%d,"
+ " dstFmt=0x%x, dstType=0x%x\n",
+ texObj->Name,
+ _mesa_get_format_name(texImage->TexFormat),
+ texImage->Width, texImage->Height,
+ format, type);
+ }
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+
+/**
+ * Do error checking for a glGetCompressedTexImage() call.
+ * \return GL_TRUE if any error, GL_FALSE if no errors.
+ */
+static GLboolean
+getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
+ GLint level, GLvoid *img)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+
+ if (maxLevels == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
+ target);
+ return GL_TRUE;
+ }
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetCompressedTexImageARB(bad level = %d)", level);
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glGetCompressedTexImageARB(bad target = %s)",
+ _mesa_lookup_enum_by_nr(target));
+ return GL_TRUE;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ if (!texObj) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
+ return GL_TRUE;
+ }
+
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (!texImage) {
+ /* probably invalid mipmap level */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetCompressedTexImageARB(level)");
+ return GL_TRUE;
+ }
+
+ if (!_mesa_is_format_compressed(texImage->TexFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImageARB(texture is not compressed)");
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ GLuint compressedSize;
+
+ /* make sure PBO is not mapped */
+ if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImage(PBO is mapped)");
+ return GL_TRUE;
+ }
+
+ compressedSize = _mesa_format_image_size(texImage->TexFormat,
+ texImage->Width,
+ texImage->Height,
+ texImage->Depth);
+
+ /* do bounds checking on PBO write */
+ if ((const GLubyte *) img + compressedSize >
+ (const GLubyte *) ctx->Pack.BufferObj->Size) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImage(out of bounds PBO write)");
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+void GLAPIENTRY
+_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (getcompressedteximage_error_check(ctx, target, level, img)) {
+ return;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj) && !img) {
+ /* not an error, do nothing */
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
+ _mesa_debug(ctx,
+ "glGetCompressedTexImage(tex %u) format = %s, w=%d, h=%d\n",
+ texObj->Name,
+ _mesa_get_format_name(texImage->TexFormat),
+ texImage->Width, texImage->Height);
+ }
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
+ texObj, texImage);
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c index c6b8c05b1..351dccc16 100644 --- a/mesalib/src/mesa/main/teximage.c +++ b/mesalib/src/mesa/main/teximage.c @@ -1,3524 +1,3524 @@ -/* - * mesa 3-D graphics library - * Version: 7.6 - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file teximage.c - * Texture image-related functions. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "context.h" -#include "enums.h" -#include "fbobject.h" -#include "framebuffer.h" -#include "hash.h" -#include "image.h" -#include "imports.h" -#include "macros.h" -#include "mfeatures.h" -#include "state.h" -#include "texcompress.h" -#include "texfetch.h" -#include "teximage.h" -#include "texstate.h" -#include "texpal.h" -#include "mtypes.h" - - -/** - * State changes which we care about for glCopyTex[Sub]Image() calls. - * In particular, we care about pixel transfer state and buffer state - * (such as glReadBuffer to make sure we read from the right renderbuffer). - */ -#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL) - - - -/** - * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE - * elsewhere. - */ -void * -_mesa_alloc_texmemory(GLsizei bytes) -{ - return _mesa_align_malloc(bytes, 512); -} - - -/** - * Free texture memory allocated with _mesa_alloc_texmemory() - */ -void -_mesa_free_texmemory(void *m) -{ - _mesa_align_free(m); -} - - -/* - * Compute floor(log_base_2(n)). - * If n < 0 return -1. - */ -static int -logbase2( int n ) -{ - GLint i = 1; - GLint log2 = 0; - - if (n < 0) - return -1; - - if (n == 0) - return 0; - - while ( n > i ) { - i *= 2; - log2++; - } - if (i != n) { - return log2 - 1; - } - else { - return log2; - } -} - - - -/** - * Return the simple base format for a given internal texture format. - * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. - * - * \param ctx GL context. - * \param internalFormat the internal texture format token or 1, 2, 3, or 4. - * - * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, - * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. - * - * This is the format which is used during texture application (i.e. the - * texture format and env mode determine the arithmetic used. - * - * XXX this could be static - */ -GLint -_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat ) -{ - switch (internalFormat) { - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_ALPHA12: - case GL_ALPHA16: - return GL_ALPHA; - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - case GL_LUMINANCE12: - case GL_LUMINANCE16: - return GL_LUMINANCE; - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE4_ALPHA4: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - return GL_LUMINANCE_ALPHA; - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_INTENSITY12: - case GL_INTENSITY16: - return GL_INTENSITY; - case 3: - case GL_RGB: - case GL_R3_G3_B2: - case GL_RGB4: - case GL_RGB5: - case GL_RGB8: - case GL_RGB10: - case GL_RGB12: - case GL_RGB16: - return GL_RGB; - case 4: - case GL_RGBA: - case GL_RGBA2: - case GL_RGBA4: - case GL_RGB5_A1: - case GL_RGBA8: - case GL_RGB10_A2: - case GL_RGBA12: - case GL_RGBA16: - return GL_RGBA; - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.EXT_texture_format_BGRA8888) { - switch (internalFormat) { - case GL_BGRA_EXT: - return GL_RGBA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_paletted_texture) { - switch (internalFormat) { - case GL_COLOR_INDEX: - case GL_COLOR_INDEX1_EXT: - case GL_COLOR_INDEX2_EXT: - case GL_COLOR_INDEX4_EXT: - case GL_COLOR_INDEX8_EXT: - case GL_COLOR_INDEX12_EXT: - case GL_COLOR_INDEX16_EXT: - return GL_COLOR_INDEX; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_depth_texture) { - switch (internalFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16: - case GL_DEPTH_COMPONENT24: - case GL_DEPTH_COMPONENT32: - return GL_DEPTH_COMPONENT; - default: - ; /* fallthrough */ - } - } - - switch (internalFormat) { - case GL_COMPRESSED_ALPHA: - return GL_ALPHA; - case GL_COMPRESSED_LUMINANCE: - return GL_LUMINANCE; - case GL_COMPRESSED_LUMINANCE_ALPHA: - return GL_LUMINANCE_ALPHA; - case GL_COMPRESSED_INTENSITY: - return GL_INTENSITY; - case GL_COMPRESSED_RGB: - return GL_RGB; - case GL_COMPRESSED_RGBA: - return GL_RGBA; - default: - ; /* fallthrough */ - } - - if (ctx->Extensions.TDFX_texture_compression_FXT1) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_FXT1_3DFX: - return GL_RGB; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - return GL_RGBA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_compression_s3tc) { - switch (internalFormat) { - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - return GL_RGB; - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - return GL_RGBA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.S3_s3tc) { - switch (internalFormat) { - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - return GL_RGB; - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - return GL_RGBA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.MESA_ycbcr_texture) { - if (internalFormat == GL_YCBCR_MESA) - return GL_YCBCR_MESA; - } - - if (ctx->Extensions.ARB_texture_float) { - switch (internalFormat) { - case GL_ALPHA16F_ARB: - case GL_ALPHA32F_ARB: - return GL_ALPHA; - case GL_RGBA16F_ARB: - case GL_RGBA32F_ARB: - return GL_RGBA; - case GL_RGB16F_ARB: - case GL_RGB32F_ARB: - return GL_RGB; - case GL_INTENSITY16F_ARB: - case GL_INTENSITY32F_ARB: - return GL_INTENSITY; - case GL_LUMINANCE16F_ARB: - case GL_LUMINANCE32F_ARB: - return GL_LUMINANCE; - case GL_LUMINANCE_ALPHA16F_ARB: - case GL_LUMINANCE_ALPHA32F_ARB: - return GL_LUMINANCE_ALPHA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_envmap_bumpmap) { - switch (internalFormat) { - case GL_DUDV_ATI: - case GL_DU8DV8_ATI: - return GL_DUDV_ATI; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.MESA_texture_signed_rgba) { - switch (internalFormat) { - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - return GL_RGBA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_packed_depth_stencil) { - switch (internalFormat) { - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - return GL_DEPTH_STENCIL_EXT; - default: - ; /* fallthrough */ - } - } - -#if FEATURE_EXT_texture_sRGB - if (ctx->Extensions.EXT_texture_sRGB) { - switch (internalFormat) { - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - case GL_COMPRESSED_SRGB_EXT: - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - return GL_RGB; - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - case GL_COMPRESSED_SRGB_ALPHA_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - return GL_RGBA; - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: - return GL_LUMINANCE_ALPHA; - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - case GL_COMPRESSED_SLUMINANCE_EXT: - return GL_LUMINANCE; - default: - ; /* fallthrough */ - } - } -#endif /* FEATURE_EXT_texture_sRGB */ - - if (ctx->Extensions.EXT_texture_integer) { - switch (internalFormat) { - case GL_RGBA8UI_EXT: - case GL_RGBA16UI_EXT: - case GL_RGBA32UI_EXT: - case GL_RGBA8I_EXT: - case GL_RGBA16I_EXT: - case GL_RGBA32I_EXT: - return GL_RGBA; - case GL_RGB8UI_EXT: - case GL_RGB16UI_EXT: - case GL_RGB32UI_EXT: - case GL_RGB8I_EXT: - case GL_RGB16I_EXT: - case GL_RGB32I_EXT: - return GL_RGB; - case GL_ALPHA8UI_EXT: - case GL_ALPHA16UI_EXT: - case GL_ALPHA32UI_EXT: - case GL_ALPHA8I_EXT: - case GL_ALPHA16I_EXT: - case GL_ALPHA32I_EXT: - return GL_ALPHA; - case GL_INTENSITY8UI_EXT: - case GL_INTENSITY16UI_EXT: - case GL_INTENSITY32UI_EXT: - case GL_INTENSITY8I_EXT: - case GL_INTENSITY16I_EXT: - case GL_INTENSITY32I_EXT: - return GL_INTENSITY; - case GL_LUMINANCE8UI_EXT: - case GL_LUMINANCE16UI_EXT: - case GL_LUMINANCE32UI_EXT: - case GL_LUMINANCE8I_EXT: - case GL_LUMINANCE16I_EXT: - case GL_LUMINANCE32I_EXT: - return GL_LUMINANCE; - case GL_LUMINANCE_ALPHA8UI_EXT: - case GL_LUMINANCE_ALPHA16UI_EXT: - case GL_LUMINANCE_ALPHA32UI_EXT: - case GL_LUMINANCE_ALPHA8I_EXT: - case GL_LUMINANCE_ALPHA16I_EXT: - case GL_LUMINANCE_ALPHA32I_EXT: - return GL_LUMINANCE_ALPHA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_rg) { - switch (internalFormat) { - case GL_R16F: - /* R16F depends on both ARB_half_float_pixel and ARB_texture_float. - */ - if (!ctx->Extensions.ARB_half_float_pixel) - break; - /* FALLTHROUGH */ - case GL_R32F: - if (!ctx->Extensions.ARB_texture_float) - break; - return GL_RED; - case GL_R8I: - case GL_R8UI: - case GL_R16I: - case GL_R16UI: - case GL_R32I: - case GL_R32UI: - if (!ctx->Extensions.EXT_texture_integer) - break; - /* FALLTHROUGH */ - case GL_R8: - case GL_R16: - case GL_RED: - case GL_COMPRESSED_RED: - return GL_RED; - - case GL_RG16F: - /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float. - */ - if (!ctx->Extensions.ARB_half_float_pixel) - break; - /* FALLTHROUGH */ - case GL_RG32F: - if (!ctx->Extensions.ARB_texture_float) - break; - return GL_RG; - case GL_RG8I: - case GL_RG8UI: - case GL_RG16I: - case GL_RG16UI: - case GL_RG32I: - case GL_RG32UI: - if (!ctx->Extensions.EXT_texture_integer) - break; - /* FALLTHROUGH */ - case GL_RG: - case GL_RG8: - case GL_RG16: - case GL_COMPRESSED_RG: - return GL_RG; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_shared_exponent) { - switch (internalFormat) { - case GL_RGB9_E5_EXT: - return GL_RGB; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_packed_float) { - switch (internalFormat) { - case GL_R11F_G11F_B10F_EXT: - return GL_RGB; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_depth_buffer_float) { - switch (internalFormat) { - case GL_DEPTH_COMPONENT32F: - return GL_DEPTH_COMPONENT; - case GL_DEPTH32F_STENCIL8: - return GL_DEPTH_STENCIL; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_compression_rgtc) { - switch (internalFormat) { - case GL_COMPRESSED_RED_RGTC1: - case GL_COMPRESSED_SIGNED_RED_RGTC1: - return GL_RED; - case GL_COMPRESSED_RG_RGTC2: - case GL_COMPRESSED_SIGNED_RG_RGTC2: - return GL_RG; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.EXT_texture_compression_latc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - return GL_LUMINANCE; - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - return GL_LUMINANCE_ALPHA; - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ATI_texture_compression_3dc) { - switch (internalFormat) { - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - return GL_LUMINANCE_ALPHA; - default: - ; /* fallthrough */ - } - } - - return -1; /* error */ -} - - -/** - * For cube map faces, return a face index in [0,5]. - * For other targets return 0; - */ -GLuint -_mesa_tex_target_to_face(GLenum target) -{ - if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && - target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) - return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; - else - return 0; -} - - - -/** - * Store a gl_texture_image pointer in a gl_texture_object structure - * according to the target and level parameters. - * - * \param tObj texture object. - * \param target texture target. - * \param level image level. - * \param texImage texture image. - * - * This was basically prompted by the introduction of cube maps. - */ -void -_mesa_set_tex_image(struct gl_texture_object *tObj, - GLenum target, GLint level, - struct gl_texture_image *texImage) -{ - const GLuint face = _mesa_tex_target_to_face(target); - - ASSERT(tObj); - ASSERT(texImage); - ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0); - - tObj->Image[face][level] = texImage; - - /* Set the 'back' pointer */ - texImage->TexObject = tObj; -} - - -/** - * Allocate a texture image structure. - * - * Called via ctx->Driver.NewTextureImage() unless overriden by a device - * driver. - * - * \return a pointer to gl_texture_image struct with all fields initialized to - * zero. - */ -struct gl_texture_image * -_mesa_new_texture_image( struct gl_context *ctx ) -{ - (void) ctx; - return CALLOC_STRUCT(gl_texture_image); -} - - -/** - * Free texture image data. - * This function is a fallback called via ctx->Driver.FreeTexImageData(). - * - * \param texImage texture image. - * - * Free the texture image data if it's not marked as client data. - */ -void -_mesa_free_texture_image_data(struct gl_context *ctx, - struct gl_texture_image *texImage) -{ - (void) ctx; - - if (texImage->Data && !texImage->IsClientData) { - /* free the old texture data */ - _mesa_free_texmemory(texImage->Data); - } - - texImage->Data = NULL; -} - - -/** - * Free texture image. - * - * \param texImage texture image. - * - * Free the texture image structure and the associated image data. - */ -void -_mesa_delete_texture_image(struct gl_context *ctx, - struct gl_texture_image *texImage) -{ - /* Free texImage->Data and/or any other driver-specific texture - * image storage. - */ - ASSERT(ctx->Driver.FreeTexImageData); - ctx->Driver.FreeTexImageData( ctx, texImage ); - - ASSERT(texImage->Data == NULL); - if (texImage->ImageOffsets) - free(texImage->ImageOffsets); - free(texImage); -} - - -/** - * Test if a target is a proxy target. - * - * \param target texture target. - * - * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. - */ -GLboolean -_mesa_is_proxy_texture(GLenum target) -{ - /* NUM_TEXTURE_TARGETS should match number of terms below */ - assert(NUM_TEXTURE_TARGETS == 7); - - return (target == GL_PROXY_TEXTURE_1D || - target == GL_PROXY_TEXTURE_2D || - target == GL_PROXY_TEXTURE_3D || - target == GL_PROXY_TEXTURE_CUBE_MAP_ARB || - target == GL_PROXY_TEXTURE_RECTANGLE_NV || - target == GL_PROXY_TEXTURE_1D_ARRAY_EXT || - target == GL_PROXY_TEXTURE_2D_ARRAY_EXT); -} - - -/** - * Return the proxy target which corresponds to the given texture target - */ -static GLenum -get_proxy_target(GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - case GL_PROXY_TEXTURE_1D: - return GL_PROXY_TEXTURE_1D; - case GL_TEXTURE_2D: - case GL_PROXY_TEXTURE_2D: - return GL_PROXY_TEXTURE_2D; - case GL_TEXTURE_3D: - case GL_PROXY_TEXTURE_3D: - return GL_PROXY_TEXTURE_3D; - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_PROXY_TEXTURE_CUBE_MAP_ARB: - return GL_PROXY_TEXTURE_CUBE_MAP_ARB; - case GL_TEXTURE_RECTANGLE_NV: - case GL_PROXY_TEXTURE_RECTANGLE_NV: - return GL_PROXY_TEXTURE_RECTANGLE_NV; - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - return GL_PROXY_TEXTURE_1D_ARRAY_EXT; - case GL_TEXTURE_2D_ARRAY_EXT: - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - return GL_PROXY_TEXTURE_2D_ARRAY_EXT; - default: - _mesa_problem(NULL, "unexpected target in get_proxy_target()"); - return 0; - } -} - - -/** - * Get the texture object that corresponds to the target of the given - * texture unit. - * - * \param ctx GL context. - * \param texUnit texture unit. - * \param target texture target. - * - * \return pointer to the texture object on success, or NULL on failure. - * - * \sa gl_texture_unit. - */ -struct gl_texture_object * -_mesa_select_tex_object(struct gl_context *ctx, - const struct gl_texture_unit *texUnit, - GLenum target) -{ - const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - - switch (target) { - case GL_TEXTURE_1D: - return texUnit->CurrentTex[TEXTURE_1D_INDEX]; - case GL_PROXY_TEXTURE_1D: - return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]; - case GL_TEXTURE_2D: - return texUnit->CurrentTex[TEXTURE_2D_INDEX]; - case GL_PROXY_TEXTURE_2D: - return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]; - case GL_TEXTURE_3D: - return texUnit->CurrentTex[TEXTURE_3D_INDEX]; - case GL_PROXY_TEXTURE_3D: - return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]; - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_ARB: - return ctx->Extensions.ARB_texture_cube_map - ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL; - case GL_PROXY_TEXTURE_CUBE_MAP_ARB: - return ctx->Extensions.ARB_texture_cube_map - ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL; - case GL_TEXTURE_RECTANGLE_NV: - return ctx->Extensions.NV_texture_rectangle - ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL; - case GL_PROXY_TEXTURE_RECTANGLE_NV: - return ctx->Extensions.NV_texture_rectangle - ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL; - case GL_TEXTURE_1D_ARRAY_EXT: - return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL; - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL; - case GL_TEXTURE_2D_ARRAY_EXT: - return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL; - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL; - default: - _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); - return NULL; - } -} - - -/** - * Return pointer to texture object for given target on current texture unit. - */ -struct gl_texture_object * -_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target) -{ - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - return _mesa_select_tex_object(ctx, texUnit, target); -} - - -/** - * Get a texture image pointer from a texture object, given a texture - * target and mipmap level. The target and level parameters should - * have already been error-checked. - * - * \param ctx GL context. - * \param texObj texture unit. - * \param target texture target. - * \param level image level. - * - * \return pointer to the texture image structure, or NULL on failure. - */ -struct gl_texture_image * -_mesa_select_tex_image(struct gl_context *ctx, - const struct gl_texture_object *texObj, - GLenum target, GLint level) -{ - const GLuint face = _mesa_tex_target_to_face(target); - - ASSERT(texObj); - ASSERT(level >= 0); - ASSERT(level < MAX_TEXTURE_LEVELS); - - return texObj->Image[face][level]; -} - - -/** - * Like _mesa_select_tex_image() but if the image doesn't exist, allocate - * it and install it. Only return NULL if passed a bad parameter or run - * out of memory. - */ -struct gl_texture_image * -_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj, - GLenum target, GLint level) -{ - struct gl_texture_image *texImage; - - if (!texObj) - return NULL; - - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - if (!texImage) { - texImage = ctx->Driver.NewTextureImage(ctx); - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation"); - return NULL; - } - - _mesa_set_tex_image(texObj, target, level, texImage); - } - - return texImage; -} - - -/** - * Return pointer to the specified proxy texture image. - * Note that proxy textures are per-context, not per-texture unit. - * \return pointer to texture image or NULL if invalid target, invalid - * level, or out of memory. - */ -struct gl_texture_image * -_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level) -{ - struct gl_texture_image *texImage; - GLuint texIndex; - - if (level < 0 ) - return NULL; - - switch (target) { - case GL_PROXY_TEXTURE_1D: - if (level >= ctx->Const.MaxTextureLevels) - return NULL; - texIndex = TEXTURE_1D_INDEX; - break; - case GL_PROXY_TEXTURE_2D: - if (level >= ctx->Const.MaxTextureLevels) - return NULL; - texIndex = TEXTURE_2D_INDEX; - break; - case GL_PROXY_TEXTURE_3D: - if (level >= ctx->Const.Max3DTextureLevels) - return NULL; - texIndex = TEXTURE_3D_INDEX; - break; - case GL_PROXY_TEXTURE_CUBE_MAP: - if (level >= ctx->Const.MaxCubeTextureLevels) - return NULL; - texIndex = TEXTURE_CUBE_INDEX; - break; - case GL_PROXY_TEXTURE_RECTANGLE_NV: - if (level > 0) - return NULL; - texIndex = TEXTURE_RECT_INDEX; - break; - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - if (level >= ctx->Const.MaxTextureLevels) - return NULL; - texIndex = TEXTURE_1D_ARRAY_INDEX; - break; - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - if (level >= ctx->Const.MaxTextureLevels) - return NULL; - texIndex = TEXTURE_2D_ARRAY_INDEX; - break; - default: - return NULL; - } - - texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level]; - if (!texImage) { - texImage = ctx->Driver.NewTextureImage(ctx); - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation"); - return NULL; - } - ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage; - /* Set the 'back' pointer */ - texImage->TexObject = ctx->Texture.ProxyTex[texIndex]; - } - return texImage; -} - - -/** - * Get the maximum number of allowed mipmap levels. - * - * \param ctx GL context. - * \param target texture target. - * - * \return the maximum number of allowed mipmap levels for the given - * texture target, or zero if passed a bad target. - * - * \sa gl_constants. - */ -GLint -_mesa_max_texture_levels(struct gl_context *ctx, GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - case GL_PROXY_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_PROXY_TEXTURE_2D: - return ctx->Const.MaxTextureLevels; - case GL_TEXTURE_3D: - case GL_PROXY_TEXTURE_3D: - return ctx->Const.Max3DTextureLevels; - case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_PROXY_TEXTURE_CUBE_MAP_ARB: - return ctx->Extensions.ARB_texture_cube_map - ? ctx->Const.MaxCubeTextureLevels : 0; - case GL_TEXTURE_RECTANGLE_NV: - case GL_PROXY_TEXTURE_RECTANGLE_NV: - return ctx->Extensions.NV_texture_rectangle ? 1 : 0; - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - case GL_TEXTURE_2D_ARRAY_EXT: - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array) - ? ctx->Const.MaxTextureLevels : 0; - default: - return 0; /* bad target */ - } -} - - -/** - * Return number of dimensions per mipmap level for the given texture target. - */ -GLint -_mesa_get_texture_dimensions(GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - case GL_PROXY_TEXTURE_1D: - return 1; - case GL_TEXTURE_2D: - case GL_TEXTURE_RECTANGLE: - case GL_TEXTURE_CUBE_MAP: - case GL_PROXY_TEXTURE_2D: - case GL_PROXY_TEXTURE_RECTANGLE: - case GL_PROXY_TEXTURE_CUBE_MAP: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - case GL_TEXTURE_1D_ARRAY: - case GL_PROXY_TEXTURE_1D_ARRAY: - return 2; - case GL_TEXTURE_3D: - case GL_PROXY_TEXTURE_3D: - case GL_TEXTURE_2D_ARRAY: - case GL_PROXY_TEXTURE_2D_ARRAY: - return 3; - default: - _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", - target); - return 2; - } -} - - - - -#if 000 /* not used anymore */ -/* - * glTexImage[123]D can accept a NULL image pointer. In this case we - * create a texture image with unspecified image contents per the OpenGL - * spec. - */ -static GLubyte * -make_null_texture(GLint width, GLint height, GLint depth, GLenum format) -{ - const GLint components = _mesa_components_in_format(format); - const GLint numPixels = width * height * depth; - GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); - -#ifdef DEBUG - /* - * Let's see if anyone finds this. If glTexImage2D() is called with - * a NULL image pointer then load the texture image with something - * interesting instead of leaving it indeterminate. - */ - if (data) { - static const char message[8][32] = { - " X X XXXXX XXX X ", - " XX XX X X X X X ", - " X X X X X X X ", - " X X XXXX XXX XXXXX ", - " X X X X X X ", - " X X X X X X X ", - " X X XXXXX XXX X X ", - " " - }; - - GLubyte *imgPtr = data; - GLint h, i, j, k; - for (h = 0; h < depth; h++) { - for (i = 0; i < height; i++) { - GLint srcRow = 7 - (i % 8); - for (j = 0; j < width; j++) { - GLint srcCol = j % 32; - GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; - for (k = 0; k < components; k++) { - *imgPtr++ = texel; - } - } - } - } - } -#endif - - return data; -} -#endif - - - -/** - * Reset the fields of a gl_texture_image struct to zero. - * - * \param img texture image structure. - * - * This is called when a proxy texture test fails, we set all the - * image members (except DriverData) to zero. - * It's also used in glTexImage[123]D as a safeguard to be sure all - * required fields get initialized properly by the Driver.TexImage[123]D - * functions. - */ -static void -clear_teximage_fields(struct gl_texture_image *img) -{ - ASSERT(img); - img->_BaseFormat = 0; - img->InternalFormat = 0; - img->Border = 0; - img->Width = 0; - img->Height = 0; - img->Depth = 0; - img->RowStride = 0; - if (img->ImageOffsets) { - free(img->ImageOffsets); - img->ImageOffsets = NULL; - } - img->Width2 = 0; - img->Height2 = 0; - img->Depth2 = 0; - img->WidthLog2 = 0; - img->HeightLog2 = 0; - img->DepthLog2 = 0; - img->Data = NULL; - img->TexFormat = MESA_FORMAT_NONE; - img->FetchTexelc = NULL; - img->FetchTexelf = NULL; -} - - -/** - * Initialize basic fields of the gl_texture_image struct. - * - * \param ctx GL context. - * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc). - * \param img texture image structure to be initialized. - * \param width image width. - * \param height image height. - * \param depth image depth. - * \param border image border. - * \param internalFormat internal format. - * \param format the actual hardware format (one of MESA_FORMAT_*) - * - * Fills in the fields of \p img with the given information. - * Note: width, height and depth include the border. - */ -void -_mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, - struct gl_texture_image *img, - GLsizei width, GLsizei height, GLsizei depth, - GLint border, GLenum internalFormat, - gl_format format) -{ - GLint i, dims; - - ASSERT(img); - ASSERT(width >= 0); - ASSERT(height >= 0); - ASSERT(depth >= 0); - - img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); - ASSERT(img->_BaseFormat > 0); - img->InternalFormat = internalFormat; - img->Border = border; - img->Width = width; - img->Height = height; - img->Depth = depth; - - img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ - img->WidthLog2 = logbase2(img->Width2); - - if (height == 1) { /* 1-D texture */ - img->Height2 = 1; - img->HeightLog2 = 0; - } - else { - img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ - img->HeightLog2 = logbase2(img->Height2); - } - - if (depth == 1) { /* 2-D texture */ - img->Depth2 = 1; - img->DepthLog2 = 0; - } - else { - img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ - img->DepthLog2 = logbase2(img->Depth2); - } - - img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); - - if ((width == 1 || _mesa_is_pow_two(img->Width2)) && - (height == 1 || _mesa_is_pow_two(img->Height2)) && - (depth == 1 || _mesa_is_pow_two(img->Depth2))) - img->_IsPowerOfTwo = GL_TRUE; - else - img->_IsPowerOfTwo = GL_FALSE; - - /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */ - img->RowStride = width; - /* Allocate the ImageOffsets array and initialize to typical values. - * We allocate the array for 1D/2D textures too in order to avoid special- - * case code in the texstore routines. - */ - if (img->ImageOffsets) - free(img->ImageOffsets); - img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint)); - for (i = 0; i < depth; i++) { - img->ImageOffsets[i] = i * width * height; - } - - /* Compute Width/Height/DepthScale for mipmap lod computation */ - if (target == GL_TEXTURE_RECTANGLE_NV) { - /* scale = 1.0 since texture coords directly map to texels */ - img->WidthScale = 1.0; - img->HeightScale = 1.0; - img->DepthScale = 1.0; - } - else { - img->WidthScale = (GLfloat) img->Width; - img->HeightScale = (GLfloat) img->Height; - img->DepthScale = (GLfloat) img->Depth; - } - - img->TexFormat = format; - - dims = _mesa_get_texture_dimensions(target); - - _mesa_set_fetch_functions(img, dims); -} - - -/** - * Free and clear fields of the gl_texture_image struct. - * - * \param ctx GL context. - * \param texImage texture image structure to be cleared. - * - * After the call, \p texImage will have no data associated with it. Its - * fields are cleared so that its parent object will test incomplete. - */ -void -_mesa_clear_texture_image(struct gl_context *ctx, - struct gl_texture_image *texImage) -{ - ctx->Driver.FreeTexImageData(ctx, texImage); - clear_teximage_fields(texImage); -} - - -/** - * This is the fallback for Driver.TestProxyTexImage(). Test the texture - * level, width, height and depth against the ctx->Const limits for textures. - * - * A hardware driver might override this function if, for example, the - * max 3D texture size is 512x512x64 (i.e. not a cube). - * - * Note that width, height, depth == 0 is not an error. However, a - * texture with zero width/height/depth will be considered "incomplete" - * and texturing will effectively be disabled. - * - * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, - * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, - * GL_PROXY_TEXTURE_CUBE_MAP_ARB. - * \param level as passed to glTexImage - * \param internalFormat as passed to glTexImage - * \param format as passed to glTexImage - * \param type as passed to glTexImage - * \param width as passed to glTexImage - * \param height as passed to glTexImage - * \param depth as passed to glTexImage - * \param border as passed to glTexImage - * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. - */ -GLboolean -_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, GLenum format, GLenum type, - GLint width, GLint height, GLint depth, GLint border) -{ - GLint maxSize; - - (void) internalFormat; - (void) format; - (void) type; - - switch (target) { - case GL_PROXY_TEXTURE_1D: - maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (level >= ctx->Const.MaxTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - case GL_PROXY_TEXTURE_2D: - maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (height < 2 * border || height > 2 + maxSize) - return GL_FALSE; - if (level >= ctx->Const.MaxTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - case GL_PROXY_TEXTURE_3D: - maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (height < 2 * border || height > 2 + maxSize) - return GL_FALSE; - if (depth < 2 * border || depth > 2 + maxSize) - return GL_FALSE; - if (level >= ctx->Const.Max3DTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) - return GL_FALSE; - if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - case GL_PROXY_TEXTURE_RECTANGLE_NV: - maxSize = ctx->Const.MaxTextureRectSize; - if (width < 0 || width > maxSize) - return GL_FALSE; - if (height < 0 || height > maxSize) - return GL_FALSE; - if (level != 0) - return GL_FALSE; - return GL_TRUE; - - case GL_PROXY_TEXTURE_CUBE_MAP_ARB: - maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (height < 2 * border || height > 2 + maxSize) - return GL_FALSE; - if (level >= ctx->Const.MaxCubeTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) - return GL_FALSE; - if (level >= ctx->Const.MaxTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - if (width < 2 * border || width > 2 + maxSize) - return GL_FALSE; - if (height < 2 * border || height > 2 + maxSize) - return GL_FALSE; - if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) - return GL_FALSE; - if (level >= ctx->Const.MaxTextureLevels) - return GL_FALSE; - if (!ctx->Extensions.ARB_texture_non_power_of_two) { - if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) - return GL_FALSE; - if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) - return GL_FALSE; - } - return GL_TRUE; - - default: - _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); - return GL_FALSE; - } -} - - -/** - * Check if the memory used by the texture would exceed the driver's limit. - * This lets us support a max 3D texture size of 8K (for example) but - * prevents allocating a full 8K x 8K x 8K texture. - * XXX this could be rolled into the proxy texture size test (above) but - * we don't have the actual texture internal format at that point. - */ -static GLboolean -legal_texture_size(struct gl_context *ctx, gl_format format, - GLint width, GLint height, GLint depth) -{ - uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); - uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ - return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; -} - - - -/** - * Helper function to determine whether a target and specific compression - * format are supported. - */ -static GLboolean -target_can_be_compressed(const struct gl_context *ctx, GLenum target, - GLenum intFormat) -{ - (void) intFormat; /* not used yet */ - - switch (target) { - case GL_TEXTURE_2D: - case GL_PROXY_TEXTURE_2D: - return GL_TRUE; /* true for any compressed format so far */ - case GL_PROXY_TEXTURE_CUBE_MAP: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - return ctx->Extensions.ARB_texture_cube_map; - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - case GL_TEXTURE_2D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - default: - return GL_FALSE; - } -} - - -/** - * Check if the given texture target value is legal for a - * glTexImage1/2/3D call. - */ -static GLboolean -legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) -{ - switch (dims) { - case 1: - switch (target) { - case GL_TEXTURE_1D: - case GL_PROXY_TEXTURE_1D: - return GL_TRUE; - default: - return GL_FALSE; - } - case 2: - switch (target) { - case GL_TEXTURE_2D: - case GL_PROXY_TEXTURE_2D: - return GL_TRUE; - case GL_PROXY_TEXTURE_CUBE_MAP: - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - return ctx->Extensions.ARB_texture_cube_map; - case GL_TEXTURE_RECTANGLE_NV: - case GL_PROXY_TEXTURE_RECTANGLE_NV: - return ctx->Extensions.NV_texture_rectangle; - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_PROXY_TEXTURE_1D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - default: - return GL_FALSE; - } - case 3: - switch (target) { - case GL_TEXTURE_3D: - case GL_PROXY_TEXTURE_3D: - return GL_TRUE; - case GL_TEXTURE_2D_ARRAY_EXT: - case GL_PROXY_TEXTURE_2D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - default: - return GL_FALSE; - } - default: - _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); - return GL_FALSE; - } -} - - -/** - * Check if the given texture target value is legal for a - * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. - * The difference compared to legal_teximage_target() above is that - * proxy targets are not supported. - */ -static GLboolean -legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) -{ - switch (dims) { - case 1: - return target == GL_TEXTURE_1D; - case 2: - switch (target) { - case GL_TEXTURE_2D: - return GL_TRUE; - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - return ctx->Extensions.ARB_texture_cube_map; - case GL_TEXTURE_RECTANGLE_NV: - return ctx->Extensions.NV_texture_rectangle; - case GL_TEXTURE_1D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - default: - return GL_FALSE; - } - case 3: - switch (target) { - case GL_TEXTURE_3D: - return GL_TRUE; - case GL_TEXTURE_2D_ARRAY_EXT: - return (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array); - default: - return GL_FALSE; - } - default: - _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", - dims); - return GL_FALSE; - } -} - - -/** - * Test the glTexImage[123]D() parameters for errors. - * - * \param ctx GL context. - * \param dimensions texture image dimensions (must be 1, 2 or 3). - * \param target texture target given by the user. - * \param level image level given by the user. - * \param internalFormat internal format given by the user. - * \param format pixel data format given by the user. - * \param type pixel data type given by the user. - * \param width image width given by the user. - * \param height image height given by the user. - * \param depth image depth given by the user. - * \param border image border given by the user. - * - * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. - * - * Verifies each of the parameters against the constants specified in - * __struct gl_contextRec::Const and the supported extensions, and according - * to the OpenGL specification. - */ -static GLboolean -texture_error_check( struct gl_context *ctx, - GLuint dimensions, GLenum target, - GLint level, GLint internalFormat, - GLenum format, GLenum type, - GLint width, GLint height, - GLint depth, GLint border ) -{ - const GLenum proxyTarget = get_proxy_target(target); - const GLboolean isProxy = target == proxyTarget; - GLboolean sizeOK = GL_TRUE; - GLboolean colorFormat, indexFormat; - - /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ - if (level < 0 || level >= MAX_TEXTURE_LEVELS) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexImage%dD(level=%d)", dimensions, level); - } - return GL_TRUE; - } - - /* Check border */ - if (border < 0 || border > 1 || - ((target == GL_TEXTURE_RECTANGLE_NV || - target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexImage%dD(border=%d)", dimensions, border); - } - return GL_TRUE; - } - - if (width < 0 || height < 0 || depth < 0) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexImage%dD(width, height or depth < 0)", dimensions); - } - return GL_TRUE; - } - - /* Do this simple check before calling the TestProxyTexImage() function */ - if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { - sizeOK = (width == height); - } - - /* - * Use the proxy texture driver hook to see if the size/level/etc are - * legal. - */ - sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, - internalFormat, format, - type, width, height, - depth, border); - if (!sizeOK) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", - dimensions, level, width, height, depth); - } - return GL_TRUE; - } - - /* Check internalFormat */ - if (_mesa_base_tex_format(ctx, internalFormat) < 0) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexImage%dD(internalFormat=%s)", - dimensions, _mesa_lookup_enum_by_nr(internalFormat)); - } - return GL_TRUE; - } - - /* Check incoming image format and type */ - if (!_mesa_is_legal_format_and_type(ctx, format, type)) { - /* Normally, GL_INVALID_OPERATION is generated by a format/type - * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the - * GL_EXT_texture_integer extension, some combinations should generate - * GL_INVALID_ENUM instead (grr!). - */ - if (!isProxy) { - GLenum error = _mesa_is_integer_format(format) - ? GL_INVALID_ENUM : GL_INVALID_OPERATION; - _mesa_error(ctx, error, - "glTexImage%dD(incompatible format 0x%x, type 0x%x)", - dimensions, format, type); - } - return GL_TRUE; - } - - /* make sure internal format and format basically agree */ - colorFormat = _mesa_is_color_format(format); - indexFormat = _mesa_is_index_format(format); - if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || - (_mesa_is_index_format(internalFormat) && !indexFormat) || - (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || - (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || - (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || - (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { - if (!isProxy) - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", - dimensions, internalFormat, format); - return GL_TRUE; - } - - /* additional checks for ycbcr textures */ - if (internalFormat == GL_YCBCR_MESA) { - ASSERT(ctx->Extensions.MESA_ycbcr_texture); - if (type != GL_UNSIGNED_SHORT_8_8_MESA && - type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { - char message[100]; - _mesa_snprintf(message, sizeof(message), - "glTexImage%dD(format/type YCBCR mismatch", dimensions); - _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); - return GL_TRUE; /* error */ - } - if (target != GL_TEXTURE_2D && - target != GL_PROXY_TEXTURE_2D && - target != GL_TEXTURE_RECTANGLE_NV && - target != GL_PROXY_TEXTURE_RECTANGLE_NV) { - if (!isProxy) - _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)"); - return GL_TRUE; - } - if (border != 0) { - if (!isProxy) { - char message[100]; - _mesa_snprintf(message, sizeof(message), - "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", - dimensions, border); - _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); - } - return GL_TRUE; - } - } - - /* additional checks for depth textures */ - if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { - /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */ - if (target != GL_TEXTURE_1D && - target != GL_PROXY_TEXTURE_1D && - target != GL_TEXTURE_2D && - target != GL_PROXY_TEXTURE_2D && - target != GL_TEXTURE_RECTANGLE_ARB && - target != GL_PROXY_TEXTURE_RECTANGLE_ARB) { - if (!isProxy) - _mesa_error(ctx, GL_INVALID_ENUM, - "glTexImage(target/internalFormat)"); - return GL_TRUE; - } - } - - /* additional checks for compressed textures */ - if (_mesa_is_compressed_format(ctx, internalFormat)) { - if (!target_can_be_compressed(ctx, target, internalFormat)) { - if (!isProxy) - _mesa_error(ctx, GL_INVALID_ENUM, - "glTexImage%dD(target)", dimensions); - return GL_TRUE; - } - if (border != 0) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexImage%dD(border!=0)", dimensions); - } - return GL_TRUE; - } - } - - /* additional checks for integer textures */ - if (ctx->Extensions.EXT_texture_integer && - (_mesa_is_integer_format(format) != - _mesa_is_integer_format(internalFormat))) { - if (!isProxy) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexImage%dD(integer/non-integer format mismatch)", - dimensions); - } - return GL_TRUE; - } - - /* if we get here, the parameters are OK */ - return GL_FALSE; -} - - -/** - * Test glTexSubImage[123]D() parameters for errors. - * - * \param ctx GL context. - * \param dimensions texture image dimensions (must be 1, 2 or 3). - * \param target texture target given by the user. - * \param level image level given by the user. - * \param xoffset sub-image x offset given by the user. - * \param yoffset sub-image y offset given by the user. - * \param zoffset sub-image z offset given by the user. - * \param format pixel data format given by the user. - * \param type pixel data type given by the user. - * \param width image width given by the user. - * \param height image height given by the user. - * \param depth image depth given by the user. - * - * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. - * - * Verifies each of the parameters against the constants specified in - * __struct gl_contextRec::Const and the supported extensions, and according - * to the OpenGL specification. - */ -static GLboolean -subtexture_error_check( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type ) -{ - /* Basic level check */ - if (level < 0 || level >= MAX_TEXTURE_LEVELS) { - _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); - return GL_TRUE; - } - - /* Check for negative sizes */ - if (width < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexSubImage%dD(width=%d)", dimensions, width); - return GL_TRUE; - } - if (height < 0 && dimensions > 1) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexSubImage%dD(height=%d)", dimensions, height); - return GL_TRUE; - } - if (depth < 0 && dimensions > 2) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexSubImage%dD(depth=%d)", dimensions, depth); - return GL_TRUE; - } - - if (!_mesa_is_legal_format_and_type(ctx, format, type)) { - /* As with the glTexImage2D check above, the error code here - * depends on texture integer. - */ - GLenum error = _mesa_is_integer_format(format) - ? GL_INVALID_OPERATION : GL_INVALID_ENUM; - _mesa_error(ctx, error, - "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", - dimensions, format, type); - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Do second part of glTexSubImage which depends on the destination texture. - * \return GL_TRUE if error recorded, GL_FALSE otherwise - */ -static GLboolean -subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type, - const struct gl_texture_image *destTex ) -{ - if (!destTex) { - /* undefined image level */ - _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); - return GL_TRUE; - } - - if (xoffset < -((GLint)destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", - dimensions); - return GL_TRUE; - } - if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", - dimensions); - return GL_TRUE; - } - if (dimensions > 1) { - if (yoffset < -((GLint)destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", - dimensions); - return GL_TRUE; - } - if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", - dimensions); - return GL_TRUE; - } - } - if (dimensions > 2) { - if (zoffset < -((GLint)destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); - return GL_TRUE; - } - if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); - return GL_TRUE; - } - } - - if (_mesa_is_format_compressed(destTex->TexFormat)) { - GLuint bw, bh; - - /* do tests which depend on compression block size */ - _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); - - /* offset must be multiple of block size */ - if ((xoffset % bw != 0) || (yoffset % bh != 0)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexSubImage%dD(xoffset = %d, yoffset = %d)", - dimensions, xoffset, yoffset); - return GL_TRUE; - } - /* size must be multiple of bw by bh or equal to whole texture size */ - if ((width % bw != 0) && (GLuint) width != destTex->Width) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexSubImage%dD(width = %d)", dimensions, width); - return GL_TRUE; - } - if ((height % bh != 0) && (GLuint) height != destTex->Height) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexSubImage%dD(height = %d)", dimensions, height); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -/** - * Test glCopyTexImage[12]D() parameters for errors. - * - * \param ctx GL context. - * \param dimensions texture image dimensions (must be 1, 2 or 3). - * \param target texture target given by the user. - * \param level image level given by the user. - * \param internalFormat internal format given by the user. - * \param width image width given by the user. - * \param height image height given by the user. - * \param border texture border. - * - * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. - * - * Verifies each of the parameters against the constants specified in - * __struct gl_contextRec::Const and the supported extensions, and according - * to the OpenGL specification. - */ -static GLboolean -copytexture_error_check( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level, GLint internalFormat, - GLint width, GLint height, GLint border ) -{ - const GLenum proxyTarget = get_proxy_target(target); - const GLenum type = GL_FLOAT; - GLboolean sizeOK; - GLint format; - - /* check target */ - if (!legal_texsubimage_target(ctx, dimensions, target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", - dimensions, _mesa_lookup_enum_by_nr(target)); - return GL_TRUE; - } - - /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ - if (level < 0 || level >= MAX_TEXTURE_LEVELS) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexImage%dD(level=%d)", dimensions, level); - return GL_TRUE; - } - - /* Check that the source buffer is complete */ - if (ctx->ReadBuffer->Name) { - if (ctx->ReadBuffer->_Status == 0) { - _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); - } - if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "glCopyTexImage%dD(invalid readbuffer)", dimensions); - return GL_TRUE; - } - } - - /* Check border */ - if (border < 0 || border > 1 || - ((target == GL_TEXTURE_RECTANGLE_NV || - target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { - return GL_TRUE; - } - - format = _mesa_base_tex_format(ctx, internalFormat); - if (format < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexImage%dD(internalFormat)", dimensions); - return GL_TRUE; - } - - if (!_mesa_source_buffer_exists(ctx, format)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexImage%dD(missing readbuffer)", dimensions); - return GL_TRUE; - } - - /* Do size, level checking */ - sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) - ? (width == height) : 1; - - sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, - internalFormat, format, - type, width, height, - 1, border); - - if (!sizeOK) { - if (dimensions == 1) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexImage1D(width=%d)", width); - } - else { - ASSERT(dimensions == 2); - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexImage2D(width=%d, height=%d)", width, height); - } - return GL_TRUE; - } - - if (_mesa_is_compressed_format(ctx, internalFormat)) { - if (!target_can_be_compressed(ctx, target, internalFormat)) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glCopyTexImage%dD(target)", dimensions); - return GL_TRUE; - } - if (border != 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexImage%dD(border!=0)", dimensions); - return GL_TRUE; - } - } - else if (_mesa_is_depth_format(internalFormat)) { - /* make sure we have depth/stencil buffers */ - if (!ctx->ReadBuffer->_DepthBuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexImage%dD(no depth)", dimensions); - return GL_TRUE; - } - } - else if (_mesa_is_depthstencil_format(internalFormat)) { - /* make sure we have depth/stencil buffers */ - if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexImage%dD(no depth/stencil buffer)", dimensions); - return GL_TRUE; - } - } - - /* if we get here, the parameters are OK */ - return GL_FALSE; -} - - -/** - * Test glCopyTexSubImage[12]D() parameters for errors. - * Note that this is the first part of error checking. - * See also copytexsubimage_error_check2() below for the second part. - * - * \param ctx GL context. - * \param dimensions texture image dimensions (must be 1, 2 or 3). - * \param target texture target given by the user. - * \param level image level given by the user. - * - * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. - */ -static GLboolean -copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level) -{ - /* Check that the source buffer is complete */ - if (ctx->ReadBuffer->Name) { - if (ctx->ReadBuffer->_Status == 0) { - _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); - } - if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { - _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, - "glCopyTexImage%dD(invalid readbuffer)", dimensions); - return GL_TRUE; - } - } - - /* check target (proxies not allowed) */ - if (!legal_texsubimage_target(ctx, dimensions, target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", - dimensions, _mesa_lookup_enum_by_nr(target)); - return GL_TRUE; - } - - /* Check level */ - if (level < 0 || level >= MAX_TEXTURE_LEVELS) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(level=%d)", dimensions, level); - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Second part of error checking for glCopyTexSubImage[12]D(). - * \param xoffset sub-image x offset given by the user. - * \param yoffset sub-image y offset given by the user. - * \param zoffset sub-image z offset given by the user. - * \param width image width given by the user. - * \param height image height given by the user. - */ -static GLboolean -copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, - const struct gl_texture_image *teximage ) -{ - /* check that dest tex image exists */ - if (!teximage) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexSubImage%dD(undefined texture level: %d)", - dimensions, level); - return GL_TRUE; - } - - /* Check size */ - if (width < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(width=%d)", dimensions, width); - return GL_TRUE; - } - if (dimensions > 1 && height < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(height=%d)", dimensions, height); - return GL_TRUE; - } - - /* check x/y offsets */ - if (xoffset < -((GLint)teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); - return GL_TRUE; - } - if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(xoffset+width)", dimensions); - return GL_TRUE; - } - if (dimensions > 1) { - if (yoffset < -((GLint)teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); - return GL_TRUE; - } - /* NOTE: we're adding the border here, not subtracting! */ - if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(yoffset+height)", dimensions); - return GL_TRUE; - } - } - - /* check z offset */ - if (dimensions > 2) { - if (zoffset < -((GLint)teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(zoffset)", dimensions); - return GL_TRUE; - } - if (zoffset > (GLint) (teximage->Depth + teximage->Border)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(zoffset+depth)", dimensions); - return GL_TRUE; - } - } - - if (_mesa_is_format_compressed(teximage->TexFormat)) { - /* offset must be multiple of 4 */ - if ((xoffset & 3) || (yoffset & 3)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); - return GL_TRUE; - } - /* size must be multiple of 4 */ - if ((width & 3) != 0 && (GLuint) width != teximage->Width) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(width)", dimensions); - return GL_TRUE; - } - if ((height & 3) != 0 && (GLuint) height != teximage->Height) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCopyTexSubImage%dD(height)", dimensions); - return GL_TRUE; - } - } - - if (teximage->InternalFormat == GL_YCBCR_MESA) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); - return GL_TRUE; - } - - if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", - dimensions, teximage->_BaseFormat); - return GL_TRUE; - } - - if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) { - if (!ctx->ReadBuffer->_DepthBuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexSubImage%dD(no depth buffer)", - dimensions); - return GL_TRUE; - } - } - else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) { - if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexSubImage%dD(no depth/stencil buffer)", - dimensions); - return GL_TRUE; - } - } - - /* If copying into an integer texture, the source buffer must also be - * integer-valued. - */ - if (_mesa_is_format_integer_color(teximage->TexFormat)) { - struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; - if (!_mesa_is_format_integer_color(rb->Format)) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCopyTexSubImage%dD(source buffer is not integer format)", - dimensions); - return GL_TRUE; - } - } - - /* if we get here, the parameters are OK */ - return GL_FALSE; -} - - -/** Callback info for walking over FBO hash table */ -struct cb_info -{ - struct gl_context *ctx; - struct gl_texture_object *texObj; - GLuint level, face; -}; - - -/** - * Check render to texture callback. Called from _mesa_HashWalk(). - */ -static void -check_rtt_cb(GLuint key, void *data, void *userData) -{ - struct gl_framebuffer *fb = (struct gl_framebuffer *) data; - const struct cb_info *info = (struct cb_info *) userData; - struct gl_context *ctx = info->ctx; - const struct gl_texture_object *texObj = info->texObj; - const GLuint level = info->level, face = info->face; - - /* If this is a user-created FBO */ - if (fb->Name) { - GLuint i; - /* check if any of the FBO's attachments point to 'texObj' */ - for (i = 0; i < BUFFER_COUNT; i++) { - struct gl_renderbuffer_attachment *att = fb->Attachment + i; - if (att->Type == GL_TEXTURE && - att->Texture == texObj && - att->TextureLevel == level && - att->CubeMapFace == face) { - ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]); - /* Tell driver about the new renderbuffer texture */ - ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); - /* Mark fb status as indeterminate to force re-validation */ - fb->_Status = 0; - } - } - } -} - - -/** - * When a texture image is specified we have to check if it's bound to - * any framebuffer objects (render to texture) in order to detect changes - * in size or format since that effects FBO completeness. - * Any FBOs rendering into the texture must be re-validated. - */ -static void -update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj, - GLuint face, GLuint level) -{ - /* Only check this texture if it's been marked as RenderToTexture */ - if (texObj->_RenderToTexture) { - struct cb_info info; - info.ctx = ctx; - info.texObj = texObj; - info.level = level; - info.face = face; - _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); - } -} - - -/** - * If the texture object's GenerateMipmap flag is set and we've - * changed the texture base level image, regenerate the rest of the - * mipmap levels now. - */ -static INLINE void -check_gen_mipmap(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj, GLint level) -{ - ASSERT(target != GL_TEXTURE_CUBE_MAP); - if (texObj->GenerateMipmap && - level == texObj->BaseLevel && - level < texObj->MaxLevel) { - ASSERT(ctx->Driver.GenerateMipmap); - ctx->Driver.GenerateMipmap(ctx, target, texObj); - } -} - - -/** Debug helper: override the user-requested internal format */ -static GLenum -override_internal_format(GLenum internalFormat, GLint width, GLint height) -{ -#if 0 - if (internalFormat == GL_RGBA16F_ARB || - internalFormat == GL_RGBA32F_ARB) { - printf("Convert rgba float tex to int %d x %d\n", width, height); - return GL_RGBA; - } - else if (internalFormat == GL_RGB16F_ARB || - internalFormat == GL_RGB32F_ARB) { - printf("Convert rgb float tex to int %d x %d\n", width, height); - return GL_RGB; - } - else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || - internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { - printf("Convert luminance float tex to int %d x %d\n", width, height); - return GL_LUMINANCE_ALPHA; - } - else if (internalFormat == GL_LUMINANCE16F_ARB || - internalFormat == GL_LUMINANCE32F_ARB) { - printf("Convert luminance float tex to int %d x %d\n", width, height); - return GL_LUMINANCE; - } - else if (internalFormat == GL_ALPHA16F_ARB || - internalFormat == GL_ALPHA32F_ARB) { - printf("Convert luminance float tex to int %d x %d\n", width, height); - return GL_ALPHA; - } - /* - else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { - internalFormat = GL_RGBA; - } - */ - else { - return internalFormat; - } -#else - return internalFormat; -#endif -} - - -/** - * Choose the actual hardware format for a texture image. - * Try to use the same format as the previous image level when possible. - * Otherwise, ask the driver for the best format. - * It's important to try to choose a consistant format for all levels - * for efficient texture memory layout/allocation. In particular, this - * comes up during automatic mipmap generation. - */ -gl_format -_mesa_choose_texture_format(struct gl_context *ctx, - struct gl_texture_object *texObj, - GLenum target, GLint level, - GLenum internalFormat, GLenum format, GLenum type) -{ - gl_format f; - - /* see if we've already chosen a format for the previous level */ - if (level > 0) { - struct gl_texture_image *prevImage = - _mesa_select_tex_image(ctx, texObj, target, level - 1); - /* See if the prev level is defined and has an internal format which - * matches the new internal format. - */ - if (prevImage && - prevImage->Width > 0 && - prevImage->InternalFormat == internalFormat) { - /* use the same format */ - ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); - return prevImage->TexFormat; - } - } - - /* choose format from scratch */ - f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type); - ASSERT(f != MESA_FORMAT_NONE); - return f; -} - - -/** - * Common code to implement all the glTexImage1D/2D/3D functions. - */ -static void -teximage(struct gl_context *ctx, GLuint dims, - GLenum target, GLint level, GLint internalFormat, - GLsizei width, GLsizei height, GLsizei depth, - GLint border, GLenum format, GLenum type, - const GLvoid *pixels) -{ - GLboolean error; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", - dims, - _mesa_lookup_enum_by_nr(target), level, - _mesa_lookup_enum_by_nr(internalFormat), - width, height, depth, border, - _mesa_lookup_enum_by_nr(format), - _mesa_lookup_enum_by_nr(type), pixels); - - internalFormat = override_internal_format(internalFormat, width, height); - - /* target error checking */ - if (!legal_teximage_target(ctx, dims, target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)", - dims, _mesa_lookup_enum_by_nr(target)); - return; - } - - /* general error checking */ - error = texture_error_check(ctx, dims, target, level, internalFormat, - format, type, width, height, depth, border); - - if (_mesa_is_proxy_texture(target)) { - /* Proxy texture: just clear or set state depending on error checking */ - struct gl_texture_image *texImage = - _mesa_get_proxy_tex_image(ctx, target, level); - - if (error) { - /* when error, clear all proxy texture image parameters */ - if (texImage) - clear_teximage_fields(texImage); - } - else { - /* no error, set the tex image parameters */ - struct gl_texture_object *texObj = - _mesa_get_current_tex_object(ctx, target); - gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, - target, level, - internalFormat, - format, type); - - if (legal_texture_size(ctx, texFormat, width, height, depth)) { - _mesa_init_teximage_fields(ctx, target, texImage, width, height, - depth, border, internalFormat, - texFormat); - } - else if (texImage) { - clear_teximage_fields(texImage); - } - } - } - else { - /* non-proxy target */ - const GLuint face = _mesa_tex_target_to_face(target); - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - if (error) { - return; /* error was recorded */ - } - - if (ctx->NewState & _NEW_PIXEL) - _mesa_update_state(ctx); - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); - } - else { - gl_format texFormat; - - if (texImage->Data) { - ctx->Driver.FreeTexImageData( ctx, texImage ); - } - - ASSERT(texImage->Data == NULL); - texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, - internalFormat, format, - type); - - if (legal_texture_size(ctx, texFormat, width, height, depth)) { - _mesa_init_teximage_fields(ctx, target, texImage, - width, height, depth, - border, internalFormat, texFormat); - - /* Give the texture to the driver. <pixels> may be null. */ - ASSERT(ctx->Driver.TexImage3D); - switch (dims) { - case 1: - ctx->Driver.TexImage1D(ctx, target, level, internalFormat, - width, border, format, - type, pixels, &ctx->Unpack, texObj, - texImage); - break; - case 2: - ctx->Driver.TexImage2D(ctx, target, level, internalFormat, - width, height, border, format, - type, pixels, &ctx->Unpack, texObj, - texImage); - break; - case 3: - ctx->Driver.TexImage3D(ctx, target, level, internalFormat, - width, height, depth, border, format, - type, pixels, &ctx->Unpack, texObj, - texImage); - break; - default: - _mesa_problem(ctx, "invalid dims=%u in teximage()", dims); - } - - check_gen_mipmap(ctx, target, texObj, level); - - update_fbo_texture(ctx, texObj, face, level); - - /* state update */ - texObj->_Complete = GL_FALSE; - ctx->NewState |= _NEW_TEXTURE; - } - else { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); - } - } - } - _mesa_unlock_texture(ctx, texObj); - } -} - - -/* - * Called from the API. Note that width includes the border. - */ -void GLAPIENTRY -_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, - GLsizei width, GLint border, GLenum format, - GLenum type, const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - teximage(ctx, 1, target, level, internalFormat, width, 1, 1, - border, format, type, pixels); -} - - -void GLAPIENTRY -_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, - GLsizei width, GLsizei height, GLint border, - GLenum format, GLenum type, - const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - teximage(ctx, 2, target, level, internalFormat, width, height, 1, - border, format, type, pixels); -} - - -/* - * Called by the API or display list executor. - * Note that width and height include the border. - */ -void GLAPIENTRY -_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, - GLsizei width, GLsizei height, GLsizei depth, - GLint border, GLenum format, GLenum type, - const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - teximage(ctx, 3, target, level, internalFormat, width, height, depth, - border, format, type, pixels); -} - - -void GLAPIENTRY -_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, - GLsizei width, GLsizei height, GLsizei depth, - GLint border, GLenum format, GLenum type, - const GLvoid *pixels ) -{ - _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, - depth, border, format, type, pixels); -} - - -#if FEATURE_OES_EGL_image -void GLAPIENTRY -_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->Extensions.OES_EGL_image) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glEGLImageTargetTexture2DOES(unsupported)"); - return; - } - - if (target != GL_TEXTURE_2D) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glEGLImageTargetTexture2D(target=%d)", target); - return; - } - - if (ctx->NewState & _NEW_PIXEL) - _mesa_update_state(ctx); - - texObj = _mesa_get_current_tex_object(ctx, target); - _mesa_lock_texture(ctx, texObj); - - texImage = _mesa_get_tex_image(ctx, texObj, target, 0); - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); - } else { - if (texImage->Data) - ctx->Driver.FreeTexImageData( ctx, texImage ); - - ASSERT(texImage->Data == NULL); - ctx->Driver.EGLImageTargetTexture2D(ctx, target, - texObj, texImage, image); - - /* state update */ - texObj->_Complete = GL_FALSE; - ctx->NewState |= _NEW_TEXTURE; - } - _mesa_unlock_texture(ctx, texObj); - -} -#endif - - - -/** - * Implement all the glTexSubImage1/2/3D() functions. - */ -static void -texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLenum type, const GLvoid *pixels ) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", - dims, - _mesa_lookup_enum_by_nr(target), level, - xoffset, yoffset, zoffset, width, height, depth, - _mesa_lookup_enum_by_nr(format), - _mesa_lookup_enum_by_nr(type), pixels); - - /* check target (proxies not allowed) */ - if (!legal_texsubimage_target(ctx, dims, target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", - dims, _mesa_lookup_enum_by_nr(target)); - return; - } - - if (ctx->NewState & _NEW_PIXEL) - _mesa_update_state(ctx); - - if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, - width, height, depth, format, type)) { - return; /* error was detected */ - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - if (subtexture_error_check2(ctx, dims, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, type, texImage)) { - /* error was recorded */ - } - else if (width > 0 && height > 0 && height > 0) { - /* If we have a border, offset=-1 is legal. Bias by border width. */ - switch (dims) { - case 3: - zoffset += texImage->Border; - /* fall-through */ - case 2: - yoffset += texImage->Border; - /* fall-through */ - case 1: - xoffset += texImage->Border; - } - - switch (dims) { - case 1: - ctx->Driver.TexSubImage1D(ctx, target, level, - xoffset, width, - format, type, pixels, - &ctx->Unpack, texObj, texImage ); - break; - case 2: - ctx->Driver.TexSubImage2D(ctx, target, level, - xoffset, yoffset, width, height, - format, type, pixels, - &ctx->Unpack, texObj, texImage ); - break; - case 3: - ctx->Driver.TexSubImage3D(ctx, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, type, pixels, - &ctx->Unpack, texObj, texImage ); - break; - default: - _mesa_problem(ctx, "unexpected dims in subteximage()"); - } - - check_gen_mipmap(ctx, target, texObj, level); - - ctx->NewState |= _NEW_TEXTURE; - } - } - _mesa_unlock_texture(ctx, texObj); -} - - -void GLAPIENTRY -_mesa_TexSubImage1D( GLenum target, GLint level, - GLint xoffset, GLsizei width, - GLenum format, GLenum type, - const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - texsubimage(ctx, 1, target, level, - xoffset, 0, 0, - width, 1, 1, - format, type, pixels); -} - - -void GLAPIENTRY -_mesa_TexSubImage2D( GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - texsubimage(ctx, 2, target, level, - xoffset, yoffset, 0, - width, height, 1, - format, type, pixels); -} - - - -void GLAPIENTRY -_mesa_TexSubImage3D( GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLenum type, - const GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - texsubimage(ctx, 3, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, type, pixels); -} - - - -/** - * Implement the glCopyTexImage1/2D() functions. - */ -static void -copyteximage(struct gl_context *ctx, GLuint dims, - GLenum target, GLint level, GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - const GLuint face = _mesa_tex_target_to_face(target); - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", - dims, - _mesa_lookup_enum_by_nr(target), level, - _mesa_lookup_enum_by_nr(internalFormat), - x, y, width, height, border); - - if (ctx->NewState & NEW_COPY_TEX_STATE) - _mesa_update_state(ctx); - - if (copytexture_error_check(ctx, dims, target, level, internalFormat, - width, height, border)) - return; - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); - } - else { - gl_format texFormat; - - if (texImage->Data) { - ctx->Driver.FreeTexImageData( ctx, texImage ); - } - - ASSERT(texImage->Data == NULL); - - texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, - internalFormat, GL_NONE, - GL_NONE); - - if (legal_texture_size(ctx, texFormat, width, height, 1)) { - _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1, - border, internalFormat, texFormat); - - ASSERT(ctx->Driver.CopyTexImage2D); - if (dims == 1) - ctx->Driver.CopyTexImage1D(ctx, target, level, internalFormat, - x, y, width, border); - else - ctx->Driver.CopyTexImage2D(ctx, target, level, internalFormat, - x, y, width, height, border); - - check_gen_mipmap(ctx, target, texObj, level); - - update_fbo_texture(ctx, texObj, face, level); - - /* state update */ - texObj->_Complete = GL_FALSE; - ctx->NewState |= _NEW_TEXTURE; - } - else { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); - } - } - } - _mesa_unlock_texture(ctx, texObj); -} - - - -void GLAPIENTRY -_mesa_CopyTexImage1D( GLenum target, GLint level, - GLenum internalFormat, - GLint x, GLint y, - GLsizei width, GLint border ) -{ - GET_CURRENT_CONTEXT(ctx); - copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); -} - - - -void GLAPIENTRY -_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, - GLint x, GLint y, GLsizei width, GLsizei height, - GLint border ) -{ - GET_CURRENT_CONTEXT(ctx); - copyteximage(ctx, 2, target, level, internalFormat, - x, y, width, height, border); -} - - - -/** - * Implementation for glCopyTexSubImage1/2/3D() functions. - */ -static void -copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, GLsizei width, GLsizei height) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", - dims, - _mesa_lookup_enum_by_nr(target), - level, xoffset, yoffset, zoffset, x, y, width, height); - - if (ctx->NewState & NEW_COPY_TEX_STATE) - _mesa_update_state(ctx); - - if (copytexsubimage_error_check1(ctx, dims, target, level)) - return; - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, - zoffset, width, height, texImage)) { - /* error was recored */ - } - else { - /* If we have a border, offset=-1 is legal. Bias by border width. */ - switch (dims) { - case 3: - zoffset += texImage->Border; - /* fall-through */ - case 2: - yoffset += texImage->Border; - /* fall-through */ - case 1: - xoffset += texImage->Border; - } - - if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, - &width, &height)) { - switch (dims) { - case 1: - ctx->Driver.CopyTexSubImage1D(ctx, target, level, - xoffset, x, y, width); - break; - case 2: - ctx->Driver.CopyTexSubImage2D(ctx, target, level, - xoffset, yoffset, - x, y, width, height); - break; - case 3: - ctx->Driver.CopyTexSubImage3D(ctx, target, level, - xoffset, yoffset, zoffset, - x, y, width, height); - break; - default: - _mesa_problem(ctx, "bad dims in copytexsubimage()"); - } - - check_gen_mipmap(ctx, target, texObj, level); - - ctx->NewState |= _NEW_TEXTURE; - } - } - } - _mesa_unlock_texture(ctx, texObj); -} - - -void GLAPIENTRY -_mesa_CopyTexSubImage1D( GLenum target, GLint level, - GLint xoffset, GLint x, GLint y, GLsizei width ) -{ - GET_CURRENT_CONTEXT(ctx); - copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); -} - - - -void GLAPIENTRY -_mesa_CopyTexSubImage2D( GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint x, GLint y, GLsizei width, GLsizei height ) -{ - GET_CURRENT_CONTEXT(ctx); - copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, - width, height); -} - - - -void GLAPIENTRY -_mesa_CopyTexSubImage3D( GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, GLsizei width, GLsizei height ) -{ - GET_CURRENT_CONTEXT(ctx); - copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, - x, y, width, height); -} - - - - -/**********************************************************************/ -/****** Compressed Textures ******/ -/**********************************************************************/ - - -/** - * Return expected size of a compressed texture. - */ -static GLuint -compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, - GLenum glformat) -{ - gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); - return _mesa_format_image_size(mesaFormat, width, height, depth); -} - - -/* - * Return compressed texture block size, in pixels. - */ -static void -get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) -{ - gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); - _mesa_get_format_block_size(mesaFormat, bw, bh); -} - - -/** - * Error checking for glCompressedTexImage[123]D(). - * \return error code or GL_NO_ERROR. - */ -static GLenum -compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, - GLenum target, GLint level, - GLenum internalFormat, GLsizei width, - GLsizei height, GLsizei depth, GLint border, - GLsizei imageSize) -{ - const GLenum proxyTarget = get_proxy_target(target); - const GLint maxLevels = _mesa_max_texture_levels(ctx, target); - GLint expectedSize; - - /* check level */ - if (level < 0 || level >= maxLevels) - return GL_INVALID_VALUE; - - if (!target_can_be_compressed(ctx, target, internalFormat)) { - return GL_INVALID_ENUM; - } - - /* This will detect any invalid internalFormat value */ - if (!_mesa_is_compressed_format(ctx, internalFormat)) - return GL_INVALID_ENUM; - - /* This should really never fail */ - if (_mesa_base_tex_format(ctx, internalFormat) < 0) - return GL_INVALID_ENUM; - - /* No compressed formats support borders at this time */ - if (border != 0) - return GL_INVALID_VALUE; - - /* For cube map, width must equal height */ - if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && - target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) - return GL_INVALID_VALUE; - - /* check image size against compression block size */ - { - gl_format texFormat = - ctx->Driver.ChooseTextureFormat(ctx, internalFormat, - GL_NONE, GL_NONE); - GLuint bw, bh; - - _mesa_get_format_block_size(texFormat, &bw, &bh); - if ((width > bw && width % bw > 0) || - (height > bh && height % bh > 0)) { - /* - * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is - * generated [...] if any parameter combinations are not - * supported by the specific compressed internal format. - */ - return GL_INVALID_OPERATION; - } - } - - /* check image sizes */ - if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, - internalFormat, GL_NONE, GL_NONE, - width, height, depth, border)) { - /* See error comment above */ - return GL_INVALID_OPERATION; - } - - /* check image size in bytes */ - expectedSize = compressed_tex_size(width, height, depth, internalFormat); - if (expectedSize != imageSize) { - /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] - * if <imageSize> is not consistent with the format, dimensions, and - * contents of the specified image. - */ - return GL_INVALID_VALUE; - } - - return GL_NO_ERROR; -} - - -/** - * Error checking for glCompressedTexSubImage[123]D(). - * \warning There are some bad assumptions here about the size of compressed - * texture tiles (multiple of 4) used to test the validity of the - * offset and size parameters. - * \return error code or GL_NO_ERROR. - */ -static GLenum -compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, - GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLsizei imageSize) -{ - GLint expectedSize, maxLevels = 0, maxTextureSize; - GLuint bw, bh; - (void) zoffset; - - if (dimensions == 1) { - /* 1D compressed textures not allowed */ - return GL_INVALID_ENUM; - } - else if (dimensions == 2) { - if (target == GL_PROXY_TEXTURE_2D) { - maxLevels = ctx->Const.MaxTextureLevels; - } - else if (target == GL_TEXTURE_2D) { - maxLevels = ctx->Const.MaxTextureLevels; - } - else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { - if (!ctx->Extensions.ARB_texture_cube_map) - return GL_INVALID_ENUM; /*target*/ - maxLevels = ctx->Const.MaxCubeTextureLevels; - } - else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB && - target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) { - if (!ctx->Extensions.ARB_texture_cube_map) - return GL_INVALID_ENUM; /*target*/ - maxLevels = ctx->Const.MaxCubeTextureLevels; - } - else { - return GL_INVALID_ENUM; /*target*/ - } - } - else if (dimensions == 3) { - /* 3D compressed textures not allowed */ - return GL_INVALID_ENUM; - } - - maxTextureSize = 1 << (maxLevels - 1); - - /* this will catch any invalid compressed format token */ - if (!_mesa_is_compressed_format(ctx, format)) - return GL_INVALID_ENUM; - - if (width < 1 || width > maxTextureSize) - return GL_INVALID_VALUE; - - if ((height < 1 || height > maxTextureSize) - && dimensions > 1) - return GL_INVALID_VALUE; - - if (level < 0 || level >= maxLevels) - return GL_INVALID_VALUE; - - /* - * do checks which depend on compression block size - */ - get_compressed_block_size(format, &bw, &bh); - - if ((xoffset % bw != 0) || (yoffset % bh != 0)) - return GL_INVALID_VALUE; - - if ((width % bw != 0) && width != 2 && width != 1) - return GL_INVALID_VALUE; - - if ((height % bh != 0) && height != 2 && height != 1) - return GL_INVALID_VALUE; - - expectedSize = compressed_tex_size(width, height, depth, format); - if (expectedSize != imageSize) - return GL_INVALID_VALUE; - - return GL_NO_ERROR; -} - - -/** - * Do second part of glCompressedTexSubImage error checking. - * \return GL_TRUE if error found, GL_FALSE otherwise. - */ -static GLboolean -compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, - GLsizei width, GLsizei height, - GLsizei depth, GLenum format, - struct gl_texture_image *texImage) -{ - - if ((GLint) format != texImage->InternalFormat) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glCompressedTexSubImage%uD(format=0x%x)", dims, format); - return GL_TRUE; - } - - if (((width == 1 || width == 2) && - width != (GLsizei) texImage->Width) || - (width > (GLsizei) texImage->Width)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCompressedTexSubImage%uD(width=%d)", dims, width); - return GL_TRUE; - } - - if (dims >= 2) { - if (((height == 1 || height == 2) && - height != (GLsizei) texImage->Height) || - (height > (GLsizei) texImage->Height)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCompressedTexSubImage%uD(height=%d)", dims, height); - return GL_TRUE; - } - } - - if (dims >= 3) { - if (((depth == 1 || depth == 2) && - depth != (GLsizei) texImage->Depth) || - (depth > (GLsizei) texImage->Depth)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glCompressedTexSubImage%uD(depth=%d)", dims, depth); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -/** - * Implementation of the glCompressedTexImage1/2/3D() functions. - */ -static void -compressedteximage(struct gl_context *ctx, GLuint dims, - GLenum target, GLint level, - GLenum internalFormat, GLsizei width, - GLsizei height, GLsizei depth, GLint border, - GLsizei imageSize, const GLvoid *data) -{ - GLenum error; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, - "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n", - dims, - _mesa_lookup_enum_by_nr(target), level, - _mesa_lookup_enum_by_nr(internalFormat), - width, height, depth, border, imageSize, data); - - /* check target */ - if (!legal_teximage_target(ctx, dims, target)) { - _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)", - dims, _mesa_lookup_enum_by_nr(target)); - return; - } - - error = compressed_texture_error_check(ctx, dims, target, level, - internalFormat, width, height, depth, - border, imageSize); - -#if FEATURE_ES - /* XXX this is kind of a hack */ - if (error) { - _mesa_error(ctx, error, "glTexImage2D"); - return; - } - - if (dims == 2) { - switch (internalFormat) { - case GL_PALETTE4_RGB8_OES: - case GL_PALETTE4_RGBA8_OES: - case GL_PALETTE4_R5_G6_B5_OES: - case GL_PALETTE4_RGBA4_OES: - case GL_PALETTE4_RGB5_A1_OES: - case GL_PALETTE8_RGB8_OES: - case GL_PALETTE8_RGBA8_OES: - case GL_PALETTE8_R5_G6_B5_OES: - case GL_PALETTE8_RGBA4_OES: - case GL_PALETTE8_RGB5_A1_OES: - _mesa_cpal_compressed_teximage2d(target, level, internalFormat, - width, height, imageSize, data); - return; - } - } -#endif - - if (_mesa_is_proxy_texture(target)) { - /* Proxy texture: just check for errors and update proxy state */ - struct gl_texture_image *texImage; - - if (!error) { - struct gl_texture_object *texObj = - _mesa_get_current_tex_object(ctx, target); - gl_format texFormat = - _mesa_choose_texture_format(ctx, texObj, target, level, - internalFormat, GL_NONE, GL_NONE); - if (!legal_texture_size(ctx, texFormat, width, height, depth)) { - error = GL_OUT_OF_MEMORY; - } - } - - texImage = _mesa_get_proxy_tex_image(ctx, target, level); - if (texImage) { - if (error) { - /* if error, clear all proxy texture image parameters */ - clear_teximage_fields(texImage); - } - else { - /* no error: store the teximage parameters */ - _mesa_init_teximage_fields(ctx, target, texImage, width, height, - depth, border, internalFormat, - MESA_FORMAT_NONE); - } - } - } - else { - /* non-proxy target */ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - - if (error) { - _mesa_error(ctx, error, "glCompressedTexImage%uD", dims); - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - if (!texImage) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, - "glCompressedTexImage%uD", dims); - } - else { - gl_format texFormat; - - if (texImage->Data) { - ctx->Driver.FreeTexImageData( ctx, texImage ); - } - ASSERT(texImage->Data == NULL); - - texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, - internalFormat, GL_NONE, - GL_NONE); - - if (legal_texture_size(ctx, texFormat, width, height, depth)) { - _mesa_init_teximage_fields(ctx, target, texImage, - width, height, depth, - border, internalFormat, texFormat); - - switch (dims) { - case 1: - ASSERT(ctx->Driver.CompressedTexImage1D); - ctx->Driver.CompressedTexImage1D(ctx, target, level, - internalFormat, - width, - border, imageSize, data, - texObj, texImage); - break; - case 2: - ASSERT(ctx->Driver.CompressedTexImage2D); - ctx->Driver.CompressedTexImage2D(ctx, target, level, - internalFormat, - width, height, - border, imageSize, data, - texObj, texImage); - break; - case 3: - ASSERT(ctx->Driver.CompressedTexImage3D); - ctx->Driver.CompressedTexImage3D(ctx, target, level, - internalFormat, - width, height, depth, - border, imageSize, data, - texObj, texImage); - break; - default: - _mesa_problem(ctx, "bad dims in compressedteximage"); - } - - check_gen_mipmap(ctx, target, texObj, level); - - /* state update */ - texObj->_Complete = GL_FALSE; - ctx->NewState |= _NEW_TEXTURE; - } - else { - _mesa_error(ctx, GL_OUT_OF_MEMORY, - "glCompressedTexImage%uD", dims); - } - } - } - _mesa_unlock_texture(ctx, texObj); - } -} - - -void GLAPIENTRY -_mesa_CompressedTexImage1DARB(GLenum target, GLint level, - GLenum internalFormat, GLsizei width, - GLint border, GLsizei imageSize, - const GLvoid *data) -{ - GET_CURRENT_CONTEXT(ctx); - compressedteximage(ctx, 1, target, level, internalFormat, - width, 1, 1, border, imageSize, data); -} - - -void GLAPIENTRY -_mesa_CompressedTexImage2DARB(GLenum target, GLint level, - GLenum internalFormat, GLsizei width, - GLsizei height, GLint border, GLsizei imageSize, - const GLvoid *data) -{ - GET_CURRENT_CONTEXT(ctx); - compressedteximage(ctx, 2, target, level, internalFormat, - width, height, 1, border, imageSize, data); -} - - -void GLAPIENTRY -_mesa_CompressedTexImage3DARB(GLenum target, GLint level, - GLenum internalFormat, GLsizei width, - GLsizei height, GLsizei depth, GLint border, - GLsizei imageSize, const GLvoid *data) -{ - GET_CURRENT_CONTEXT(ctx); - compressedteximage(ctx, 3, target, level, internalFormat, - width, height, depth, border, imageSize, data); -} - - -/** - * Common helper for glCompressedTexSubImage1/2/3D(). - */ -static void -compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLsizei imageSize, const GLvoid *data) -{ - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - GLenum error; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - error = compressed_subtexture_error_check(ctx, dims, target, level, - xoffset, 0, 0, /* pos */ - width, height, depth, /* size */ - format, imageSize); - if (error) { - _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); - return; - } - - texObj = _mesa_get_current_tex_object(ctx, target); - - _mesa_lock_texture(ctx, texObj); - { - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - assert(texImage); - - if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, - format, texImage)) { - /* error was recorded */ - } - else if (width > 0 && height > 0 && depth > 0) { - switch (dims) { - case 1: - if (ctx->Driver.CompressedTexSubImage1D) { - ctx->Driver.CompressedTexSubImage1D(ctx, target, level, - xoffset, width, - format, imageSize, data, - texObj, texImage); - } - break; - case 2: - if (ctx->Driver.CompressedTexSubImage2D) { - ctx->Driver.CompressedTexSubImage2D(ctx, target, level, - xoffset, yoffset, - width, height, - format, imageSize, data, - texObj, texImage); - } - break; - case 3: - if (ctx->Driver.CompressedTexSubImage3D) { - ctx->Driver.CompressedTexSubImage3D(ctx, target, level, - xoffset, yoffset, zoffset, - width, height, depth, - format, imageSize, data, - texObj, texImage); - } - break; - default: - ; - } - - check_gen_mipmap(ctx, target, texObj, level); - - ctx->NewState |= _NEW_TEXTURE; - } - } - _mesa_unlock_texture(ctx, texObj); -} - - -void GLAPIENTRY -_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, - GLsizei width, GLenum format, - GLsizei imageSize, const GLvoid *data) -{ - compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, - format, imageSize, data); -} - - -void GLAPIENTRY -_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, - GLint yoffset, GLsizei width, GLsizei height, - GLenum format, GLsizei imageSize, - const GLvoid *data) -{ - compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, - width, height, 1, format, imageSize, data); -} - - -void GLAPIENTRY -_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, - GLint yoffset, GLint zoffset, GLsizei width, - GLsizei height, GLsizei depth, GLenum format, - GLsizei imageSize, const GLvoid *data) -{ - compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, - width, height, depth, format, imageSize, data); -} +/*
+ * mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file teximage.c
+ * Texture image-related functions.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "framebuffer.h"
+#include "hash.h"
+#include "image.h"
+#include "imports.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "state.h"
+#include "texcompress.h"
+#include "texfetch.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "texpal.h"
+#include "mtypes.h"
+
+
+/**
+ * State changes which we care about for glCopyTex[Sub]Image() calls.
+ * In particular, we care about pixel transfer state and buffer state
+ * (such as glReadBuffer to make sure we read from the right renderbuffer).
+ */
+#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
+
+
+
+/**
+ * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
+ * elsewhere.
+ */
+void *
+_mesa_alloc_texmemory(GLsizei bytes)
+{
+ return _mesa_align_malloc(bytes, 512);
+}
+
+
+/**
+ * Free texture memory allocated with _mesa_alloc_texmemory()
+ */
+void
+_mesa_free_texmemory(void *m)
+{
+ _mesa_align_free(m);
+}
+
+
+/*
+ * Compute floor(log_base_2(n)).
+ * If n < 0 return -1.
+ */
+static int
+logbase2( int n )
+{
+ GLint i = 1;
+ GLint log2 = 0;
+
+ if (n < 0)
+ return -1;
+
+ if (n == 0)
+ return 0;
+
+ while ( n > i ) {
+ i *= 2;
+ log2++;
+ }
+ if (i != n) {
+ return log2 - 1;
+ }
+ else {
+ return log2;
+ }
+}
+
+
+
+/**
+ * Return the simple base format for a given internal texture format.
+ * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
+ *
+ * \param ctx GL context.
+ * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
+ *
+ * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
+ *
+ * This is the format which is used during texture application (i.e. the
+ * texture format and env mode determine the arithmetic used.
+ *
+ * XXX this could be static
+ */
+GLint
+_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
+{
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return GL_ALPHA;
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return GL_LUMINANCE;
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return GL_INTENSITY;
+ case 3:
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return GL_RGB;
+ case 4:
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.EXT_texture_format_BGRA8888) {
+ switch (internalFormat) {
+ case GL_BGRA_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_paletted_texture) {
+ switch (internalFormat) {
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ return GL_COLOR_INDEX;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ return GL_DEPTH_COMPONENT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_INTENSITY:
+ return GL_INTENSITY;
+ case GL_COMPRESSED_RGB:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ return GL_RGB;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA)
+ return GL_YCBCR_MESA;
+ }
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ return GL_ALPHA;
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ return GL_RGBA;
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ return GL_RGB;
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ return GL_INTENSITY;
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_envmap_bumpmap) {
+ switch (internalFormat) {
+ case GL_DUDV_ATI:
+ case GL_DU8DV8_ATI:
+ return GL_DUDV_ATI;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_texture_signed_rgba) {
+ switch (internalFormat) {
+ case GL_RGBA_SNORM:
+ case GL_RGBA8_SNORM:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return GL_DEPTH_STENCIL_EXT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ return GL_LUMINANCE_ALPHA;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ return GL_LUMINANCE;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ if (ctx->Extensions.EXT_texture_integer) {
+ switch (internalFormat) {
+ case GL_RGBA8UI_EXT:
+ case GL_RGBA16UI_EXT:
+ case GL_RGBA32UI_EXT:
+ case GL_RGBA8I_EXT:
+ case GL_RGBA16I_EXT:
+ case GL_RGBA32I_EXT:
+ return GL_RGBA;
+ case GL_RGB8UI_EXT:
+ case GL_RGB16UI_EXT:
+ case GL_RGB32UI_EXT:
+ case GL_RGB8I_EXT:
+ case GL_RGB16I_EXT:
+ case GL_RGB32I_EXT:
+ return GL_RGB;
+ case GL_ALPHA8UI_EXT:
+ case GL_ALPHA16UI_EXT:
+ case GL_ALPHA32UI_EXT:
+ case GL_ALPHA8I_EXT:
+ case GL_ALPHA16I_EXT:
+ case GL_ALPHA32I_EXT:
+ return GL_ALPHA;
+ case GL_INTENSITY8UI_EXT:
+ case GL_INTENSITY16UI_EXT:
+ case GL_INTENSITY32UI_EXT:
+ case GL_INTENSITY8I_EXT:
+ case GL_INTENSITY16I_EXT:
+ case GL_INTENSITY32I_EXT:
+ return GL_INTENSITY;
+ case GL_LUMINANCE8UI_EXT:
+ case GL_LUMINANCE16UI_EXT:
+ case GL_LUMINANCE32UI_EXT:
+ case GL_LUMINANCE8I_EXT:
+ case GL_LUMINANCE16I_EXT:
+ case GL_LUMINANCE32I_EXT:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA8UI_EXT:
+ case GL_LUMINANCE_ALPHA16UI_EXT:
+ case GL_LUMINANCE_ALPHA32UI_EXT:
+ case GL_LUMINANCE_ALPHA8I_EXT:
+ case GL_LUMINANCE_ALPHA16I_EXT:
+ case GL_LUMINANCE_ALPHA32I_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_rg) {
+ switch (internalFormat) {
+ case GL_R16F:
+ /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
+ */
+ if (!ctx->Extensions.ARB_half_float_pixel)
+ break;
+ /* FALLTHROUGH */
+ case GL_R32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RED;
+ case GL_R8I:
+ case GL_R8UI:
+ case GL_R16I:
+ case GL_R16UI:
+ case GL_R32I:
+ case GL_R32UI:
+ if (!ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_R8:
+ case GL_R16:
+ case GL_RED:
+ case GL_COMPRESSED_RED:
+ return GL_RED;
+
+ case GL_RG16F:
+ /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
+ */
+ if (!ctx->Extensions.ARB_half_float_pixel)
+ break;
+ /* FALLTHROUGH */
+ case GL_RG32F:
+ if (!ctx->Extensions.ARB_texture_float)
+ break;
+ return GL_RG;
+ case GL_RG8I:
+ case GL_RG8UI:
+ case GL_RG16I:
+ case GL_RG16UI:
+ case GL_RG32I:
+ case GL_RG32UI:
+ if (!ctx->Extensions.EXT_texture_integer)
+ break;
+ /* FALLTHROUGH */
+ case GL_RG:
+ case GL_RG8:
+ case GL_RG16:
+ case GL_COMPRESSED_RG:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_shared_exponent) {
+ switch (internalFormat) {
+ case GL_RGB9_E5_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_float) {
+ switch (internalFormat) {
+ case GL_R11F_G11F_B10F_EXT:
+ return GL_RGB;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_depth_buffer_float) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT32F:
+ return GL_DEPTH_COMPONENT;
+ case GL_DEPTH32F_STENCIL8:
+ return GL_DEPTH_STENCIL;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression_rgtc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_SIGNED_RED_RGTC1:
+ return GL_RED;
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_SIGNED_RG_RGTC2:
+ return GL_RG;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_latc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ATI_texture_compression_3dc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ return -1; /* error */
+}
+
+
+/**
+ * For cube map faces, return a face index in [0,5].
+ * For other targets return 0;
+ */
+GLuint
+_mesa_tex_target_to_face(GLenum target)
+{
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
+ return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ else
+ return 0;
+}
+
+
+
+/**
+ * Store a gl_texture_image pointer in a gl_texture_object structure
+ * according to the target and level parameters.
+ *
+ * \param tObj texture object.
+ * \param target texture target.
+ * \param level image level.
+ * \param texImage texture image.
+ *
+ * This was basically prompted by the introduction of cube maps.
+ */
+void
+_mesa_set_tex_image(struct gl_texture_object *tObj,
+ GLenum target, GLint level,
+ struct gl_texture_image *texImage)
+{
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT(tObj);
+ ASSERT(texImage);
+ ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
+
+ tObj->Image[face][level] = texImage;
+
+ /* Set the 'back' pointer */
+ texImage->TexObject = tObj;
+}
+
+
+/**
+ * Allocate a texture image structure.
+ *
+ * Called via ctx->Driver.NewTextureImage() unless overriden by a device
+ * driver.
+ *
+ * \return a pointer to gl_texture_image struct with all fields initialized to
+ * zero.
+ */
+struct gl_texture_image *
+_mesa_new_texture_image( struct gl_context *ctx )
+{
+ (void) ctx;
+ return CALLOC_STRUCT(gl_texture_image);
+}
+
+
+/**
+ * Free texture image data.
+ * This function is a fallback called via ctx->Driver.FreeTexImageData().
+ *
+ * \param texImage texture image.
+ *
+ * Free the texture image data if it's not marked as client data.
+ */
+void
+_mesa_free_texture_image_data(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ (void) ctx;
+
+ if (texImage->Data && !texImage->IsClientData) {
+ /* free the old texture data */
+ _mesa_free_texmemory(texImage->Data);
+ }
+
+ texImage->Data = NULL;
+}
+
+
+/**
+ * Free texture image.
+ *
+ * \param texImage texture image.
+ *
+ * Free the texture image structure and the associated image data.
+ */
+void
+_mesa_delete_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ /* Free texImage->Data and/or any other driver-specific texture
+ * image storage.
+ */
+ ASSERT(ctx->Driver.FreeTexImageData);
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+
+ ASSERT(texImage->Data == NULL);
+ if (texImage->ImageOffsets)
+ free(texImage->ImageOffsets);
+ free(texImage);
+}
+
+
+/**
+ * Test if a target is a proxy target.
+ *
+ * \param target texture target.
+ *
+ * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_is_proxy_texture(GLenum target)
+{
+ /* NUM_TEXTURE_TARGETS should match number of terms below */
+ assert(NUM_TEXTURE_TARGETS == 7);
+
+ return (target == GL_PROXY_TEXTURE_1D ||
+ target == GL_PROXY_TEXTURE_2D ||
+ target == GL_PROXY_TEXTURE_3D ||
+ target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
+ target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
+}
+
+
+/**
+ * Return the proxy target which corresponds to the given texture target
+ */
+static GLenum
+get_proxy_target(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return GL_PROXY_TEXTURE_1D;
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_PROXY_TEXTURE_2D;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return GL_PROXY_TEXTURE_3D;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return GL_PROXY_TEXTURE_RECTANGLE_NV;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
+ default:
+ _mesa_problem(NULL, "unexpected target in get_proxy_target()");
+ return 0;
+ }
+}
+
+
+/**
+ * Get the texture object that corresponds to the target of the given
+ * texture unit.
+ *
+ * \param ctx GL context.
+ * \param texUnit texture unit.
+ * \param target texture target.
+ *
+ * \return pointer to the texture object on success, or NULL on failure.
+ *
+ * \sa gl_texture_unit.
+ */
+struct gl_texture_object *
+_mesa_select_tex_object(struct gl_context *ctx,
+ const struct gl_texture_unit *texUnit,
+ GLenum target)
+{
+ const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return texUnit->CurrentTex[TEXTURE_1D_INDEX];
+ case GL_PROXY_TEXTURE_1D:
+ return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
+ case GL_TEXTURE_2D:
+ return texUnit->CurrentTex[TEXTURE_2D_INDEX];
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
+ case GL_TEXTURE_3D:
+ return texUnit->CurrentTex[TEXTURE_3D_INDEX];
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
+ default:
+ _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
+ return NULL;
+ }
+}
+
+
+/**
+ * Return pointer to texture object for given target on current texture unit.
+ */
+struct gl_texture_object *
+_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
+{
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ return _mesa_select_tex_object(ctx, texUnit, target);
+}
+
+
+/**
+ * Get a texture image pointer from a texture object, given a texture
+ * target and mipmap level. The target and level parameters should
+ * have already been error-checked.
+ *
+ * \param ctx GL context.
+ * \param texObj texture unit.
+ * \param target texture target.
+ * \param level image level.
+ *
+ * \return pointer to the texture image structure, or NULL on failure.
+ */
+struct gl_texture_image *
+_mesa_select_tex_image(struct gl_context *ctx,
+ const struct gl_texture_object *texObj,
+ GLenum target, GLint level)
+{
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT(texObj);
+ ASSERT(level >= 0);
+ ASSERT(level < MAX_TEXTURE_LEVELS);
+
+ return texObj->Image[face][level];
+}
+
+
+/**
+ * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
+ * it and install it. Only return NULL if passed a bad parameter or run
+ * out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+
+ if (!texObj)
+ return NULL;
+
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
+ return NULL;
+ }
+
+ _mesa_set_tex_image(texObj, target, level, texImage);
+ }
+
+ return texImage;
+}
+
+
+/**
+ * Return pointer to the specified proxy texture image.
+ * Note that proxy textures are per-context, not per-texture unit.
+ * \return pointer to texture image or NULL if invalid target, invalid
+ * level, or out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+ GLuint texIndex;
+
+ if (level < 0 )
+ return NULL;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_1D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_2D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_2D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_3D:
+ if (level >= ctx->Const.Max3DTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_3D_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ if (level >= ctx->Const.MaxCubeTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_CUBE_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ if (level > 0)
+ return NULL;
+ texIndex = TEXTURE_RECT_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_1D_ARRAY_INDEX;
+ break;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texIndex = TEXTURE_2D_ARRAY_INDEX;
+ break;
+ default:
+ return NULL;
+ }
+
+ texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
+ }
+ return texImage;
+}
+
+
+/**
+ * Get the maximum number of allowed mipmap levels.
+ *
+ * \param ctx GL context.
+ * \param target texture target.
+ *
+ * \return the maximum number of allowed mipmap levels for the given
+ * texture target, or zero if passed a bad target.
+ *
+ * \sa gl_constants.
+ */
+GLint
+_mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Const.MaxTextureLevels;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Const.Max3DTextureLevels;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? ctx->Const.MaxCubeTextureLevels : 0;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array)
+ ? ctx->Const.MaxTextureLevels : 0;
+ default:
+ return 0; /* bad target */
+ }
+}
+
+
+/**
+ * Return number of dimensions per mipmap level for the given texture target.
+ */
+GLint
+_mesa_get_texture_dimensions(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return 1;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_CUBE_MAP:
+ case GL_PROXY_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_RECTANGLE:
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ case GL_TEXTURE_1D_ARRAY:
+ case GL_PROXY_TEXTURE_1D_ARRAY:
+ return 2;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_PROXY_TEXTURE_2D_ARRAY:
+ return 3;
+ default:
+ _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
+ target);
+ return 2;
+ }
+}
+
+
+
+
+#if 000 /* not used anymore */
+/*
+ * glTexImage[123]D can accept a NULL image pointer. In this case we
+ * create a texture image with unspecified image contents per the OpenGL
+ * spec.
+ */
+static GLubyte *
+make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
+{
+ const GLint components = _mesa_components_in_format(format);
+ const GLint numPixels = width * height * depth;
+ GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
+
+#ifdef DEBUG
+ /*
+ * Let's see if anyone finds this. If glTexImage2D() is called with
+ * a NULL image pointer then load the texture image with something
+ * interesting instead of leaving it indeterminate.
+ */
+ if (data) {
+ static const char message[8][32] = {
+ " X X XXXXX XXX X ",
+ " XX XX X X X X X ",
+ " X X X X X X X ",
+ " X X XXXX XXX XXXXX ",
+ " X X X X X X ",
+ " X X X X X X X ",
+ " X X XXXXX XXX X X ",
+ " "
+ };
+
+ GLubyte *imgPtr = data;
+ GLint h, i, j, k;
+ for (h = 0; h < depth; h++) {
+ for (i = 0; i < height; i++) {
+ GLint srcRow = 7 - (i % 8);
+ for (j = 0; j < width; j++) {
+ GLint srcCol = j % 32;
+ GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
+ for (k = 0; k < components; k++) {
+ *imgPtr++ = texel;
+ }
+ }
+ }
+ }
+ }
+#endif
+
+ return data;
+}
+#endif
+
+
+
+/**
+ * Reset the fields of a gl_texture_image struct to zero.
+ *
+ * \param img texture image structure.
+ *
+ * This is called when a proxy texture test fails, we set all the
+ * image members (except DriverData) to zero.
+ * It's also used in glTexImage[123]D as a safeguard to be sure all
+ * required fields get initialized properly by the Driver.TexImage[123]D
+ * functions.
+ */
+static void
+clear_teximage_fields(struct gl_texture_image *img)
+{
+ ASSERT(img);
+ img->_BaseFormat = 0;
+ img->InternalFormat = 0;
+ img->Border = 0;
+ img->Width = 0;
+ img->Height = 0;
+ img->Depth = 0;
+ img->RowStride = 0;
+ if (img->ImageOffsets) {
+ free(img->ImageOffsets);
+ img->ImageOffsets = NULL;
+ }
+ img->Width2 = 0;
+ img->Height2 = 0;
+ img->Depth2 = 0;
+ img->WidthLog2 = 0;
+ img->HeightLog2 = 0;
+ img->DepthLog2 = 0;
+ img->Data = NULL;
+ img->TexFormat = MESA_FORMAT_NONE;
+ img->FetchTexelc = NULL;
+ img->FetchTexelf = NULL;
+}
+
+
+/**
+ * Initialize basic fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
+ * \param img texture image structure to be initialized.
+ * \param width image width.
+ * \param height image height.
+ * \param depth image depth.
+ * \param border image border.
+ * \param internalFormat internal format.
+ * \param format the actual hardware format (one of MESA_FORMAT_*)
+ *
+ * Fills in the fields of \p img with the given information.
+ * Note: width, height and depth include the border.
+ */
+void
+_mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
+ struct gl_texture_image *img,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum internalFormat,
+ gl_format format)
+{
+ GLint i, dims;
+
+ ASSERT(img);
+ ASSERT(width >= 0);
+ ASSERT(height >= 0);
+ ASSERT(depth >= 0);
+
+ img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
+ ASSERT(img->_BaseFormat > 0);
+ img->InternalFormat = internalFormat;
+ img->Border = border;
+ img->Width = width;
+ img->Height = height;
+ img->Depth = depth;
+
+ img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
+ img->WidthLog2 = logbase2(img->Width2);
+
+ if (height == 1) { /* 1-D texture */
+ img->Height2 = 1;
+ img->HeightLog2 = 0;
+ }
+ else {
+ img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
+ img->HeightLog2 = logbase2(img->Height2);
+ }
+
+ if (depth == 1) { /* 2-D texture */
+ img->Depth2 = 1;
+ img->DepthLog2 = 0;
+ }
+ else {
+ img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
+ img->DepthLog2 = logbase2(img->Depth2);
+ }
+
+ img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
+
+ if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
+ (height == 1 || _mesa_is_pow_two(img->Height2)) &&
+ (depth == 1 || _mesa_is_pow_two(img->Depth2)))
+ img->_IsPowerOfTwo = GL_TRUE;
+ else
+ img->_IsPowerOfTwo = GL_FALSE;
+
+ /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
+ img->RowStride = width;
+ /* Allocate the ImageOffsets array and initialize to typical values.
+ * We allocate the array for 1D/2D textures too in order to avoid special-
+ * case code in the texstore routines.
+ */
+ if (img->ImageOffsets)
+ free(img->ImageOffsets);
+ img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint));
+ for (i = 0; i < depth; i++) {
+ img->ImageOffsets[i] = i * width * height;
+ }
+
+ /* Compute Width/Height/DepthScale for mipmap lod computation */
+ if (target == GL_TEXTURE_RECTANGLE_NV) {
+ /* scale = 1.0 since texture coords directly map to texels */
+ img->WidthScale = 1.0;
+ img->HeightScale = 1.0;
+ img->DepthScale = 1.0;
+ }
+ else {
+ img->WidthScale = (GLfloat) img->Width;
+ img->HeightScale = (GLfloat) img->Height;
+ img->DepthScale = (GLfloat) img->Depth;
+ }
+
+ img->TexFormat = format;
+
+ dims = _mesa_get_texture_dimensions(target);
+
+ _mesa_set_fetch_functions(img, dims);
+}
+
+
+/**
+ * Free and clear fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param texImage texture image structure to be cleared.
+ *
+ * After the call, \p texImage will have no data associated with it. Its
+ * fields are cleared so that its parent object will test incomplete.
+ */
+void
+_mesa_clear_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *texImage)
+{
+ ctx->Driver.FreeTexImageData(ctx, texImage);
+ clear_teximage_fields(texImage);
+}
+
+
+/**
+ * This is the fallback for Driver.TestProxyTexImage(). Test the texture
+ * level, width, height and depth against the ctx->Const limits for textures.
+ *
+ * A hardware driver might override this function if, for example, the
+ * max 3D texture size is 512x512x64 (i.e. not a cube).
+ *
+ * Note that width, height, depth == 0 is not an error. However, a
+ * texture with zero width/height/depth will be considered "incomplete"
+ * and texturing will effectively be disabled.
+ *
+ * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
+ * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
+ * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
+ * \param level as passed to glTexImage
+ * \param internalFormat as passed to glTexImage
+ * \param format as passed to glTexImage
+ * \param type as passed to glTexImage
+ * \param width as passed to glTexImage
+ * \param height as passed to glTexImage
+ * \param depth as passed to glTexImage
+ * \param border as passed to glTexImage
+ * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
+ */
+GLboolean
+_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
+{
+ GLint maxSize;
+
+ (void) internalFormat;
+ (void) format;
+ (void) type;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_2D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_3D:
+ maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (depth < 2 * border || depth > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.Max3DTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ maxSize = ctx->Const.MaxTextureRectSize;
+ if (width < 0 || width > maxSize)
+ return GL_FALSE;
+ if (height < 0 || height > maxSize)
+ return GL_FALSE;
+ if (level != 0)
+ return GL_FALSE;
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxCubeTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize)
+ return GL_FALSE;
+ if (height < 2 * border || height > 2 + maxSize)
+ return GL_FALSE;
+ if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
+ return GL_FALSE;
+ if (level >= ctx->Const.MaxTextureLevels)
+ return GL_FALSE;
+ if (!ctx->Extensions.ARB_texture_non_power_of_two) {
+ if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
+ return GL_FALSE;
+ if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+
+ default:
+ _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the memory used by the texture would exceed the driver's limit.
+ * This lets us support a max 3D texture size of 8K (for example) but
+ * prevents allocating a full 8K x 8K x 8K texture.
+ * XXX this could be rolled into the proxy texture size test (above) but
+ * we don't have the actual texture internal format at that point.
+ */
+static GLboolean
+legal_texture_size(struct gl_context *ctx, gl_format format,
+ GLint width, GLint height, GLint depth)
+{
+ uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
+ uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
+ return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
+}
+
+
+
+/**
+ * Helper function to determine whether a target and specific compression
+ * format are supported.
+ */
+static GLboolean
+target_can_be_compressed(const struct gl_context *ctx, GLenum target,
+ GLenum intFormat)
+{
+ (void) intFormat; /* not used yet */
+
+ switch (target) {
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_TRUE; /* true for any compressed format so far */
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the given texture target value is legal for a
+ * glTexImage1/2/3D call.
+ */
+static GLboolean
+legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
+{
+ switch (dims) {
+ case 1:
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+ case 2:
+ switch (target) {
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ case 3:
+ switch (target) {
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return GL_TRUE;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Check if the given texture target value is legal for a
+ * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
+ * The difference compared to legal_teximage_target() above is that
+ * proxy targets are not supported.
+ */
+static GLboolean
+legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
+{
+ switch (dims) {
+ case 1:
+ return target == GL_TEXTURE_1D;
+ case 2:
+ switch (target) {
+ case GL_TEXTURE_2D:
+ return GL_TRUE;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ case 3:
+ switch (target) {
+ case GL_TEXTURE_3D:
+ return GL_TRUE;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return (ctx->Extensions.MESA_texture_array ||
+ ctx->Extensions.EXT_texture_array);
+ default:
+ return GL_FALSE;
+ }
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
+ dims);
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test the glTexImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ * \param border image border given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+texture_error_check( struct gl_context *ctx,
+ GLuint dimensions, GLenum target,
+ GLint level, GLint internalFormat,
+ GLenum format, GLenum type,
+ GLint width, GLint height,
+ GLint depth, GLint border )
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLboolean isProxy = target == proxyTarget;
+ GLboolean sizeOK = GL_TRUE;
+ GLboolean colorFormat, indexFormat;
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d)", dimensions, level);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(border=%d)", dimensions, border);
+ }
+ return GL_TRUE;
+ }
+
+ if (width < 0 || height < 0 || depth < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(width, height or depth < 0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* Do this simple check before calling the TestProxyTexImage() function */
+ if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ sizeOK = (width == height);
+ }
+
+ /*
+ * Use the proxy texture driver hook to see if the size/level/etc are
+ * legal.
+ */
+ sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, format,
+ type, width, height,
+ depth, border);
+ if (!sizeOK) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
+ dimensions, level, width, height, depth);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check internalFormat */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(internalFormat=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(internalFormat));
+ }
+ return GL_TRUE;
+ }
+
+ /* Check incoming image format and type */
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ /* Normally, GL_INVALID_OPERATION is generated by a format/type
+ * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
+ * GL_EXT_texture_integer extension, some combinations should generate
+ * GL_INVALID_ENUM instead (grr!).
+ */
+ if (!isProxy) {
+ GLenum error = _mesa_is_integer_format(format)
+ ? GL_INVALID_ENUM : GL_INVALID_OPERATION;
+ _mesa_error(ctx, error,
+ "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
+ dimensions, format, type);
+ }
+ return GL_TRUE;
+ }
+
+ /* make sure internal format and format basically agree */
+ colorFormat = _mesa_is_color_format(format);
+ indexFormat = _mesa_is_index_format(format);
+ if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
+ (_mesa_is_index_format(internalFormat) && !indexFormat) ||
+ (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
+ (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
+ (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
+ (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
+ dimensions, internalFormat, format);
+ return GL_TRUE;
+ }
+
+ /* additional checks for ycbcr textures */
+ if (internalFormat == GL_YCBCR_MESA) {
+ ASSERT(ctx->Extensions.MESA_ycbcr_texture);
+ if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
+ type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
+ char message[100];
+ _mesa_snprintf(message, sizeof(message),
+ "glTexImage%dD(format/type YCBCR mismatch", dimensions);
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
+ return GL_TRUE; /* error */
+ }
+ if (target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_RECTANGLE_NV &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ char message[100];
+ _mesa_snprintf(message, sizeof(message),
+ "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
+ dimensions, border);
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for depth textures */
+ if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
+ /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
+ if (target != GL_TEXTURE_1D &&
+ target != GL_PROXY_TEXTURE_1D &&
+ target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_RECTANGLE_ARB &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage(target/internalFormat)");
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for compressed textures */
+ if (_mesa_is_compressed_format(ctx, internalFormat)) {
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%dD(target)", dimensions);
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(border!=0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for integer textures */
+ if (ctx->Extensions.EXT_texture_integer &&
+ (_mesa_is_integer_format(format) !=
+ _mesa_is_integer_format(internalFormat))) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(integer/non-integer format mismatch)",
+ dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glTexSubImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type )
+{
+ /* Basic level check */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
+ return GL_TRUE;
+ }
+
+ /* Check for negative sizes */
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (height < 0 && dimensions > 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+ if (depth < 0 && dimensions > 2) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(depth=%d)", dimensions, depth);
+ return GL_TRUE;
+ }
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ /* As with the glTexImage2D check above, the error code here
+ * depends on texture integer.
+ */
+ GLenum error = _mesa_is_integer_format(format)
+ ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
+ _mesa_error(ctx, error,
+ "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
+ dimensions, format, type);
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Do second part of glTexSubImage which depends on the destination texture.
+ * \return GL_TRUE if error recorded, GL_FALSE otherwise
+ */
+static GLboolean
+subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type,
+ const struct gl_texture_image *destTex )
+{
+ if (!destTex) {
+ /* undefined image level */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
+ return GL_TRUE;
+ }
+ if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
+ return GL_TRUE;
+ }
+ }
+
+ if (_mesa_is_format_compressed(destTex->TexFormat)) {
+ GLuint bw, bh;
+
+ /* do tests which depend on compression block size */
+ _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
+
+ /* offset must be multiple of block size */
+ if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
+ dimensions, xoffset, yoffset);
+ return GL_TRUE;
+ }
+ /* size must be multiple of bw by bh or equal to whole texture size */
+ if ((width % bw != 0) && (GLuint) width != destTex->Width) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(width = %d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if ((height % bh != 0) && (GLuint) height != destTex->Height) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(height = %d)", dimensions, height);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexImage[12]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param border texture border.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __struct gl_contextRec::Const and the supported extensions, and according
+ * to the OpenGL specification.
+ */
+static GLboolean
+copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level, GLint internalFormat,
+ GLint width, GLint height, GLint border )
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLenum type = GL_FLOAT;
+ GLboolean sizeOK;
+ GLint format;
+
+ /* check target */
+ if (!legal_texsubimage_target(ctx, dimensions, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(target));
+ return GL_TRUE;
+ }
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ if (ctx->ReadBuffer->_Status == 0) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ }
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ return GL_TRUE;
+ }
+
+ format = _mesa_base_tex_format(ctx, internalFormat);
+ if (format < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(internalFormat)", dimensions);
+ return GL_TRUE;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(missing readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+
+ /* Do size, level checking */
+ sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
+ ? (width == height) : 1;
+
+ sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, format,
+ type, width, height,
+ 1, border);
+
+ if (!sizeOK) {
+ if (dimensions == 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage1D(width=%d)", width);
+ }
+ else {
+ ASSERT(dimensions == 2);
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage2D(width=%d, height=%d)", width, height);
+ }
+ return GL_TRUE;
+ }
+
+ if (_mesa_is_compressed_format(ctx, internalFormat)) {
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glCopyTexImage%dD(target)", dimensions);
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(border!=0)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (_mesa_is_depth_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(no depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (_mesa_is_depthstencil_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(no depth/stencil buffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexSubImage[12]D() parameters for errors.
+ * Note that this is the first part of error checking.
+ * See also copytexsubimage_error_check2() below for the second part.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ */
+static GLboolean
+copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level)
+{
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ if (ctx->ReadBuffer->_Status == 0) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ }
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* check target (proxies not allowed) */
+ if (!legal_texsubimage_target(ctx, dimensions, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
+ dimensions, _mesa_lookup_enum_by_nr(target));
+ return GL_TRUE;
+ }
+
+ /* Check level */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Second part of error checking for glCopyTexSubImage[12]D().
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ */
+static GLboolean
+copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height,
+ const struct gl_texture_image *teximage )
+{
+ /* check that dest tex image exists */
+ if (!teximage) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(undefined texture level: %d)",
+ dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check size */
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (dimensions > 1 && height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+
+ /* check x/y offsets */
+ if (xoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset+width)", dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
+ return GL_TRUE;
+ }
+ /* NOTE: we're adding the border here, not subtracting! */
+ if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset+height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* check z offset */
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset)", dimensions);
+ return GL_TRUE;
+ }
+ if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (_mesa_is_format_compressed(teximage->TexFormat)) {
+ /* offset must be multiple of 4 */
+ if ((xoffset & 3) || (yoffset & 3)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
+ return GL_TRUE;
+ }
+ /* size must be multiple of 4 */
+ if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width)", dimensions);
+ return GL_TRUE;
+ }
+ if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (teximage->InternalFormat == GL_YCBCR_MESA) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
+ return GL_TRUE;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
+ dimensions, teximage->_BaseFormat);
+ return GL_TRUE;
+ }
+
+ if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(no depth buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(no depth/stencil buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* If copying into an integer texture, the source buffer must also be
+ * integer-valued.
+ */
+ if (_mesa_is_format_integer_color(teximage->TexFormat)) {
+ struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
+ if (!_mesa_is_format_integer_color(rb->Format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(source buffer is not integer format)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/** Callback info for walking over FBO hash table */
+struct cb_info
+{
+ struct gl_context *ctx;
+ struct gl_texture_object *texObj;
+ GLuint level, face;
+};
+
+
+/**
+ * Check render to texture callback. Called from _mesa_HashWalk().
+ */
+static void
+check_rtt_cb(GLuint key, void *data, void *userData)
+{
+ struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
+ const struct cb_info *info = (struct cb_info *) userData;
+ struct gl_context *ctx = info->ctx;
+ const struct gl_texture_object *texObj = info->texObj;
+ const GLuint level = info->level, face = info->face;
+
+ /* If this is a user-created FBO */
+ if (fb->Name) {
+ GLuint i;
+ /* check if any of the FBO's attachments point to 'texObj' */
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+ if (att->Type == GL_TEXTURE &&
+ att->Texture == texObj &&
+ att->TextureLevel == level &&
+ att->CubeMapFace == face) {
+ ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
+ /* Tell driver about the new renderbuffer texture */
+ ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
+ /* Mark fb status as indeterminate to force re-validation */
+ fb->_Status = 0;
+ }
+ }
+ }
+}
+
+
+/**
+ * When a texture image is specified we have to check if it's bound to
+ * any framebuffer objects (render to texture) in order to detect changes
+ * in size or format since that effects FBO completeness.
+ * Any FBOs rendering into the texture must be re-validated.
+ */
+static void
+update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLuint face, GLuint level)
+{
+ /* Only check this texture if it's been marked as RenderToTexture */
+ if (texObj->_RenderToTexture) {
+ struct cb_info info;
+ info.ctx = ctx;
+ info.texObj = texObj;
+ info.level = level;
+ info.face = face;
+ _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
+ }
+}
+
+
+/**
+ * If the texture object's GenerateMipmap flag is set and we've
+ * changed the texture base level image, regenerate the rest of the
+ * mipmap levels now.
+ */
+static INLINE void
+check_gen_mipmap(struct gl_context *ctx, GLenum target,
+ struct gl_texture_object *texObj, GLint level)
+{
+ ASSERT(target != GL_TEXTURE_CUBE_MAP);
+ if (texObj->GenerateMipmap &&
+ level == texObj->BaseLevel &&
+ level < texObj->MaxLevel) {
+ ASSERT(ctx->Driver.GenerateMipmap);
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+}
+
+
+/** Debug helper: override the user-requested internal format */
+static GLenum
+override_internal_format(GLenum internalFormat, GLint width, GLint height)
+{
+#if 0
+ if (internalFormat == GL_RGBA16F_ARB ||
+ internalFormat == GL_RGBA32F_ARB) {
+ printf("Convert rgba float tex to int %d x %d\n", width, height);
+ return GL_RGBA;
+ }
+ else if (internalFormat == GL_RGB16F_ARB ||
+ internalFormat == GL_RGB32F_ARB) {
+ printf("Convert rgb float tex to int %d x %d\n", width, height);
+ return GL_RGB;
+ }
+ else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
+ internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_LUMINANCE_ALPHA;
+ }
+ else if (internalFormat == GL_LUMINANCE16F_ARB ||
+ internalFormat == GL_LUMINANCE32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_LUMINANCE;
+ }
+ else if (internalFormat == GL_ALPHA16F_ARB ||
+ internalFormat == GL_ALPHA32F_ARB) {
+ printf("Convert luminance float tex to int %d x %d\n", width, height);
+ return GL_ALPHA;
+ }
+ /*
+ else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
+ internalFormat = GL_RGBA;
+ }
+ */
+ else {
+ return internalFormat;
+ }
+#else
+ return internalFormat;
+#endif
+}
+
+
+/**
+ * Choose the actual hardware format for a texture image.
+ * Try to use the same format as the previous image level when possible.
+ * Otherwise, ask the driver for the best format.
+ * It's important to try to choose a consistant format for all levels
+ * for efficient texture memory layout/allocation. In particular, this
+ * comes up during automatic mipmap generation.
+ */
+gl_format
+_mesa_choose_texture_format(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLenum format, GLenum type)
+{
+ gl_format f;
+
+ /* see if we've already chosen a format for the previous level */
+ if (level > 0) {
+ struct gl_texture_image *prevImage =
+ _mesa_select_tex_image(ctx, texObj, target, level - 1);
+ /* See if the prev level is defined and has an internal format which
+ * matches the new internal format.
+ */
+ if (prevImage &&
+ prevImage->Width > 0 &&
+ prevImage->InternalFormat == internalFormat) {
+ /* use the same format */
+ ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
+ return prevImage->TexFormat;
+ }
+ }
+
+ /* choose format from scratch */
+ f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
+ ASSERT(f != MESA_FORMAT_NONE);
+ return f;
+}
+
+
+/**
+ * Common code to implement all the glTexImage1D/2D/3D functions.
+ */
+static void
+teximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels)
+{
+ GLboolean error;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ width, height, depth, border,
+ _mesa_lookup_enum_by_nr(format),
+ _mesa_lookup_enum_by_nr(type), pixels);
+
+ internalFormat = override_internal_format(internalFormat, width, height);
+
+ /* target error checking */
+ if (!legal_teximage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ /* general error checking */
+ error = texture_error_check(ctx, dims, target, level, internalFormat,
+ format, type, width, height, depth, border);
+
+ if (_mesa_is_proxy_texture(target)) {
+ /* Proxy texture: just clear or set state depending on error checking */
+ struct gl_texture_image *texImage =
+ _mesa_get_proxy_tex_image(ctx, target, level);
+
+ if (error) {
+ /* when error, clear all proxy texture image parameters */
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error, set the tex image parameters */
+ struct gl_texture_object *texObj =
+ _mesa_get_current_tex_object(ctx, target);
+ gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
+ target, level,
+ internalFormat,
+ format, type);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height,
+ depth, border, internalFormat,
+ texFormat);
+ }
+ else if (texImage) {
+ clear_teximage_fields(texImage);
+ }
+ }
+ }
+ else {
+ /* non-proxy target */
+ const GLuint face = _mesa_tex_target_to_face(target);
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ if (error) {
+ return; /* error was recorded */
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
+ }
+ else {
+ gl_format texFormat;
+
+ if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+
+ ASSERT(texImage->Data == NULL);
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, format,
+ type);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth,
+ border, internalFormat, texFormat);
+
+ /* Give the texture to the driver. <pixels> may be null. */
+ ASSERT(ctx->Driver.TexImage3D);
+ switch (dims) {
+ case 1:
+ ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
+ width, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ case 2:
+ ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
+ width, height, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ case 3:
+ ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
+ width, height, depth, border, format,
+ type, pixels, &ctx->Unpack, texObj,
+ texImage);
+ break;
+ default:
+ _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+ }
+}
+
+
+/*
+ * Called from the API. Note that width includes the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLint border, GLenum format,
+ GLenum type, const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
+ border, format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 2, target, level, internalFormat, width, height, 1,
+ border, format, type, pixels);
+}
+
+
+/*
+ * Called by the API or display list executor.
+ * Note that width and height include the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ teximage(ctx, 3, target, level, internalFormat, width, height, depth,
+ border, format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
+ depth, border, format, type, pixels);
+}
+
+
+#if FEATURE_OES_EGL_image
+void GLAPIENTRY
+_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (!ctx->Extensions.OES_EGL_image) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEGLImageTargetTexture2DOES(unsupported)");
+ return;
+ }
+
+ if (target != GL_TEXTURE_2D) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glEGLImageTargetTexture2D(target=%d)", target);
+ return;
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ _mesa_lock_texture(ctx, texObj);
+
+ texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
+ } else {
+ if (texImage->Data)
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+
+ ASSERT(texImage->Data == NULL);
+ ctx->Driver.EGLImageTargetTexture2D(ctx, target,
+ texObj, texImage, image);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ _mesa_unlock_texture(ctx, texObj);
+
+}
+#endif
+
+
+
+/**
+ * Implement all the glTexSubImage1/2/3D() functions.
+ */
+static void
+texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, const GLvoid *pixels )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ xoffset, yoffset, zoffset, width, height, depth,
+ _mesa_lookup_enum_by_nr(format),
+ _mesa_lookup_enum_by_nr(type), pixels);
+
+ /* check target (proxies not allowed) */
+ if (!legal_texsubimage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ if (ctx->NewState & _NEW_PIXEL)
+ _mesa_update_state(ctx);
+
+ if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, type)) {
+ return; /* error was detected */
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (subtexture_error_check2(ctx, dims, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, texImage)) {
+ /* error was recorded */
+ }
+ else if (width > 0 && height > 0 && height > 0) {
+ /* If we have a border, offset=-1 is legal. Bias by border width. */
+ switch (dims) {
+ case 3:
+ zoffset += texImage->Border;
+ /* fall-through */
+ case 2:
+ yoffset += texImage->Border;
+ /* fall-through */
+ case 1:
+ xoffset += texImage->Border;
+ }
+
+ switch (dims) {
+ case 1:
+ ctx->Driver.TexSubImage1D(ctx, target, level,
+ xoffset, width,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ case 2:
+ ctx->Driver.TexSubImage2D(ctx, target, level,
+ xoffset, yoffset, width, height,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ case 3:
+ ctx->Driver.TexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ break;
+ default:
+ _mesa_problem(ctx, "unexpected dims in subteximage()");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_TexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 1, target, level,
+ xoffset, 0, 0,
+ width, 1, 1,
+ format, type, pixels);
+}
+
+
+void GLAPIENTRY
+_mesa_TexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 2, target, level,
+ xoffset, yoffset, 0,
+ width, height, 1,
+ format, type, pixels);
+}
+
+
+
+void GLAPIENTRY
+_mesa_TexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ texsubimage(ctx, 3, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels);
+}
+
+
+
+/**
+ * Implement the glCopyTexImage1/2D() functions.
+ */
+static void
+copyteximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint face = _mesa_tex_target_to_face(target);
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ x, y, width, height, border);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ if (copytexture_error_check(ctx, dims, target, level, internalFormat,
+ width, height, border))
+ return;
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
+ }
+ else {
+ gl_format texFormat;
+
+ if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+
+ ASSERT(texImage->Data == NULL);
+
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, GL_NONE,
+ GL_NONE);
+
+ if (legal_texture_size(ctx, texFormat, width, height, 1)) {
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
+ border, internalFormat, texFormat);
+
+ ASSERT(ctx->Driver.CopyTexImage2D);
+ if (dims == 1)
+ ctx->Driver.CopyTexImage1D(ctx, target, level, internalFormat,
+ x, y, width, border);
+ else
+ ctx->Driver.CopyTexImage2D(ctx, target, level, internalFormat,
+ x, y, width, height, border);
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage1D( GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y,
+ GLsizei width, GLint border )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copyteximage(ctx, 2, target, level, internalFormat,
+ x, y, width, height, border);
+}
+
+
+
+/**
+ * Implementation for glCopyTexSubImage1/2/3D() functions.
+ */
+static void
+copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target),
+ level, xoffset, yoffset, zoffset, x, y, width, height);
+
+ if (ctx->NewState & NEW_COPY_TEX_STATE)
+ _mesa_update_state(ctx);
+
+ if (copytexsubimage_error_check1(ctx, dims, target, level))
+ return;
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+
+ if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
+ zoffset, width, height, texImage)) {
+ /* error was recored */
+ }
+ else {
+ /* If we have a border, offset=-1 is legal. Bias by border width. */
+ switch (dims) {
+ case 3:
+ zoffset += texImage->Border;
+ /* fall-through */
+ case 2:
+ yoffset += texImage->Border;
+ /* fall-through */
+ case 1:
+ xoffset += texImage->Border;
+ }
+
+ if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
+ &width, &height)) {
+ switch (dims) {
+ case 1:
+ ctx->Driver.CopyTexSubImage1D(ctx, target, level,
+ xoffset, x, y, width);
+ break;
+ case 2:
+ ctx->Driver.CopyTexSubImage2D(ctx, target, level,
+ xoffset, yoffset,
+ x, y, width, height);
+ break;
+ case 3:
+ ctx->Driver.CopyTexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
+ break;
+ default:
+ _mesa_problem(ctx, "bad dims in copytexsubimage()");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
+ width, height);
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
+ x, y, width, height);
+}
+
+
+
+
+/**********************************************************************/
+/****** Compressed Textures ******/
+/**********************************************************************/
+
+
+/**
+ * Return expected size of a compressed texture.
+ */
+static GLuint
+compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
+ GLenum glformat)
+{
+ gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
+ return _mesa_format_image_size(mesaFormat, width, height, depth);
+}
+
+
+/*
+ * Return compressed texture block size, in pixels.
+ */
+static void
+get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
+{
+ gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
+ _mesa_get_format_block_size(mesaFormat, bw, bh);
+}
+
+
+/**
+ * Error checking for glCompressedTexImage[123]D().
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize)
+{
+ const GLenum proxyTarget = get_proxy_target(target);
+ const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+ GLint expectedSize;
+
+ /* check level */
+ if (level < 0 || level >= maxLevels)
+ return GL_INVALID_VALUE;
+
+ if (!target_can_be_compressed(ctx, target, internalFormat)) {
+ return GL_INVALID_ENUM;
+ }
+
+ /* This will detect any invalid internalFormat value */
+ if (!_mesa_is_compressed_format(ctx, internalFormat))
+ return GL_INVALID_ENUM;
+
+ /* This should really never fail */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0)
+ return GL_INVALID_ENUM;
+
+ /* No compressed formats support borders at this time */
+ if (border != 0)
+ return GL_INVALID_VALUE;
+
+ /* For cube map, width must equal height */
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
+ return GL_INVALID_VALUE;
+
+ /* check image size against compression block size */
+ {
+ gl_format texFormat =
+ ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
+ GL_NONE, GL_NONE);
+ GLuint bw, bh;
+
+ _mesa_get_format_block_size(texFormat, &bw, &bh);
+ if ((width > bw && width % bw > 0) ||
+ (height > bh && height % bh > 0)) {
+ /*
+ * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
+ * generated [...] if any parameter combinations are not
+ * supported by the specific compressed internal format.
+ */
+ return GL_INVALID_OPERATION;
+ }
+ }
+
+ /* check image sizes */
+ if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
+ internalFormat, GL_NONE, GL_NONE,
+ width, height, depth, border)) {
+ /* See error comment above */
+ return GL_INVALID_OPERATION;
+ }
+
+ /* check image size in bytes */
+ expectedSize = compressed_tex_size(width, height, depth, internalFormat);
+ if (expectedSize != imageSize) {
+ /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
+ * if <imageSize> is not consistent with the format, dimensions, and
+ * contents of the specified image.
+ */
+ return GL_INVALID_VALUE;
+ }
+
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Error checking for glCompressedTexSubImage[123]D().
+ * \warning There are some bad assumptions here about the size of compressed
+ * texture tiles (multiple of 4) used to test the validity of the
+ * offset and size parameters.
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei imageSize)
+{
+ GLint expectedSize, maxLevels = 0, maxTextureSize;
+ GLuint bw, bh;
+ (void) zoffset;
+
+ if (dimensions == 1) {
+ /* 1D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+ else if (dimensions == 2) {
+ if (target == GL_PROXY_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else {
+ return GL_INVALID_ENUM; /*target*/
+ }
+ }
+ else if (dimensions == 3) {
+ /* 3D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+
+ maxTextureSize = 1 << (maxLevels - 1);
+
+ /* this will catch any invalid compressed format token */
+ if (!_mesa_is_compressed_format(ctx, format))
+ return GL_INVALID_ENUM;
+
+ if (width < 1 || width > maxTextureSize)
+ return GL_INVALID_VALUE;
+
+ if ((height < 1 || height > maxTextureSize)
+ && dimensions > 1)
+ return GL_INVALID_VALUE;
+
+ if (level < 0 || level >= maxLevels)
+ return GL_INVALID_VALUE;
+
+ /*
+ * do checks which depend on compression block size
+ */
+ get_compressed_block_size(format, &bw, &bh);
+
+ if ((xoffset % bw != 0) || (yoffset % bh != 0))
+ return GL_INVALID_VALUE;
+
+ if ((width % bw != 0) && width != 2 && width != 1)
+ return GL_INVALID_VALUE;
+
+ if ((height % bh != 0) && height != 2 && height != 1)
+ return GL_INVALID_VALUE;
+
+ expectedSize = compressed_tex_size(width, height, depth, format);
+ if (expectedSize != imageSize)
+ return GL_INVALID_VALUE;
+
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Do second part of glCompressedTexSubImage error checking.
+ * \return GL_TRUE if error found, GL_FALSE otherwise.
+ */
+static GLboolean
+compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
+ GLsizei width, GLsizei height,
+ GLsizei depth, GLenum format,
+ struct gl_texture_image *texImage)
+{
+
+ if ((GLint) format != texImage->InternalFormat) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
+ return GL_TRUE;
+ }
+
+ if (((width == 1 || width == 2) &&
+ width != (GLsizei) texImage->Width) ||
+ (width > (GLsizei) texImage->Width)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(width=%d)", dims, width);
+ return GL_TRUE;
+ }
+
+ if (dims >= 2) {
+ if (((height == 1 || height == 2) &&
+ height != (GLsizei) texImage->Height) ||
+ (height > (GLsizei) texImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(height=%d)", dims, height);
+ return GL_TRUE;
+ }
+ }
+
+ if (dims >= 3) {
+ if (((depth == 1 || depth == 2) &&
+ depth != (GLsizei) texImage->Depth) ||
+ (depth > (GLsizei) texImage->Depth)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Implementation of the glCompressedTexImage1/2/3D() functions.
+ */
+static void
+compressedteximage(struct gl_context *ctx, GLuint dims,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, const GLvoid *data)
+{
+ GLenum error;
+
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx,
+ "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
+ dims,
+ _mesa_lookup_enum_by_nr(target), level,
+ _mesa_lookup_enum_by_nr(internalFormat),
+ width, height, depth, border, imageSize, data);
+
+ /* check target */
+ if (!legal_teximage_target(ctx, dims, target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
+ dims, _mesa_lookup_enum_by_nr(target));
+ return;
+ }
+
+ error = compressed_texture_error_check(ctx, dims, target, level,
+ internalFormat, width, height, depth,
+ border, imageSize);
+
+#if FEATURE_ES
+ /* XXX this is kind of a hack */
+ if (error) {
+ _mesa_error(ctx, error, "glTexImage2D");
+ return;
+ }
+
+ if (dims == 2) {
+ switch (internalFormat) {
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGB8_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
+ width, height, imageSize, data);
+ return;
+ }
+ }
+#endif
+
+ if (_mesa_is_proxy_texture(target)) {
+ /* Proxy texture: just check for errors and update proxy state */
+ struct gl_texture_image *texImage;
+
+ if (!error) {
+ struct gl_texture_object *texObj =
+ _mesa_get_current_tex_object(ctx, target);
+ gl_format texFormat =
+ _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, GL_NONE, GL_NONE);
+ if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
+ error = GL_OUT_OF_MEMORY;
+ }
+ }
+
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texImage) {
+ if (error) {
+ /* if error, clear all proxy texture image parameters */
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error: store the teximage parameters */
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height,
+ depth, border, internalFormat,
+ MESA_FORMAT_NONE);
+ }
+ }
+ }
+ else {
+ /* non-proxy target */
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage%uD", dims);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "glCompressedTexImage%uD", dims);
+ }
+ else {
+ gl_format texFormat;
+
+ if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
+ internalFormat, GL_NONE,
+ GL_NONE);
+
+ if (legal_texture_size(ctx, texFormat, width, height, depth)) {
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth,
+ border, internalFormat, texFormat);
+
+ switch (dims) {
+ case 1:
+ ASSERT(ctx->Driver.CompressedTexImage1D);
+ ctx->Driver.CompressedTexImage1D(ctx, target, level,
+ internalFormat,
+ width,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ case 2:
+ ASSERT(ctx->Driver.CompressedTexImage2D);
+ ctx->Driver.CompressedTexImage2D(ctx, target, level,
+ internalFormat,
+ width, height,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ case 3:
+ ASSERT(ctx->Driver.CompressedTexImage3D);
+ ctx->Driver.CompressedTexImage3D(ctx, target, level,
+ internalFormat,
+ width, height, depth,
+ border, imageSize, data,
+ texObj, texImage);
+ break;
+ default:
+ _mesa_problem(ctx, "bad dims in compressedteximage");
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ /* state update */
+ texObj->_Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY,
+ "glCompressedTexImage%uD", dims);
+ }
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage1DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 1, target, level, internalFormat,
+ width, 1, 1, border, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage2DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 2, target, level, internalFormat,
+ width, height, 1, border, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage3DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ compressedteximage(ctx, 3, target, level, internalFormat,
+ width, height, depth, border, imageSize, data);
+}
+
+
+/**
+ * Common helper for glCompressedTexSubImage1/2/3D().
+ */
+static void
+compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei imageSize, const GLvoid *data)
+{
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ error = compressed_subtexture_error_check(ctx, dims, target, level,
+ xoffset, 0, 0, /* pos */
+ width, height, depth, /* size */
+ format, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+
+ _mesa_lock_texture(ctx, texObj);
+ {
+ texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ assert(texImage);
+
+ if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
+ format, texImage)) {
+ /* error was recorded */
+ }
+ else if (width > 0 && height > 0 && depth > 0) {
+ switch (dims) {
+ case 1:
+ if (ctx->Driver.CompressedTexSubImage1D) {
+ ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
+ xoffset, width,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ case 2:
+ if (ctx->Driver.CompressedTexSubImage2D) {
+ ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
+ xoffset, yoffset,
+ width, height,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ case 3:
+ if (ctx->Driver.CompressedTexSubImage3D) {
+ ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ break;
+ default:
+ ;
+ }
+
+ check_gen_mipmap(ctx, target, texObj, level);
+
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ }
+ _mesa_unlock_texture(ctx, texObj);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
+ GLsizei width, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
+ format, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLsizei width, GLsizei height,
+ GLenum format, GLsizei imageSize,
+ const GLvoid *data)
+{
+ compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
+ width, height, 1, format, imageSize, data);
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLint zoffset, GLsizei width,
+ GLsizei height, GLsizei depth, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, imageSize, data);
+}
diff --git a/mesalib/src/mesa/main/texobj.c b/mesalib/src/mesa/main/texobj.c index c1e3e4dec..fa45cfb17 100644 --- a/mesalib/src/mesa/main/texobj.c +++ b/mesalib/src/mesa/main/texobj.c @@ -1,1267 +1,1267 @@ -/** - * \file texobj.c - * Texture object management. - */ - -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "mfeatures.h" -#include "colortab.h" -#include "context.h" -#include "enums.h" -#include "fbobject.h" -#include "formats.h" -#include "hash.h" -#include "imports.h" -#include "macros.h" -#include "teximage.h" -#include "texobj.h" -#include "texstate.h" -#include "mtypes.h" -#include "program/prog_instruction.h" - - - -/**********************************************************************/ -/** \name Internal functions */ -/*@{*/ - - -/** - * Return the gl_texture_object for a given ID. - */ -struct gl_texture_object * -_mesa_lookup_texture(struct gl_context *ctx, GLuint id) -{ - return (struct gl_texture_object *) - _mesa_HashLookup(ctx->Shared->TexObjects, id); -} - - - -/** - * Allocate and initialize a new texture object. But don't put it into the - * texture object hash table. - * - * Called via ctx->Driver.NewTextureObject, unless overridden by a device - * driver. - * - * \param shared the shared GL state structure to contain the texture object - * \param name integer name for the texture object - * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, - * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake - * of GenTextures() - * - * \return pointer to new texture object. - */ -struct gl_texture_object * -_mesa_new_texture_object( struct gl_context *ctx, GLuint name, GLenum target ) -{ - struct gl_texture_object *obj; - (void) ctx; - obj = MALLOC_STRUCT(gl_texture_object); - _mesa_initialize_texture_object(obj, name, target); - return obj; -} - - -/** - * Initialize a new texture object to default values. - * \param obj the texture object - * \param name the texture name - * \param target the texture target - */ -void -_mesa_initialize_texture_object( struct gl_texture_object *obj, - GLuint name, GLenum target ) -{ - ASSERT(target == 0 || - target == GL_TEXTURE_1D || - target == GL_TEXTURE_2D || - target == GL_TEXTURE_3D || - target == GL_TEXTURE_CUBE_MAP_ARB || - target == GL_TEXTURE_RECTANGLE_NV || - target == GL_TEXTURE_1D_ARRAY_EXT || - target == GL_TEXTURE_2D_ARRAY_EXT); - - memset(obj, 0, sizeof(*obj)); - /* init the non-zero fields */ - _glthread_INIT_MUTEX(obj->Mutex); - obj->RefCount = 1; - obj->Name = name; - obj->Target = target; - obj->Priority = 1.0F; - if (target == GL_TEXTURE_RECTANGLE_NV) { - obj->WrapS = GL_CLAMP_TO_EDGE; - obj->WrapT = GL_CLAMP_TO_EDGE; - obj->WrapR = GL_CLAMP_TO_EDGE; - obj->MinFilter = GL_LINEAR; - } - else { - obj->WrapS = GL_REPEAT; - obj->WrapT = GL_REPEAT; - obj->WrapR = GL_REPEAT; - obj->MinFilter = GL_NEAREST_MIPMAP_LINEAR; - } - obj->MagFilter = GL_LINEAR; - obj->MinLod = -1000.0; - obj->MaxLod = 1000.0; - obj->LodBias = 0.0; - obj->BaseLevel = 0; - obj->MaxLevel = 1000; - obj->MaxAnisotropy = 1.0; - obj->CompareMode = GL_NONE; /* ARB_shadow */ - obj->CompareFunc = GL_LEQUAL; /* ARB_shadow */ - obj->CompareFailValue = 0.0F; /* ARB_shadow_ambient */ - obj->DepthMode = GL_LUMINANCE; /* ARB_depth_texture */ - obj->Swizzle[0] = GL_RED; - obj->Swizzle[1] = GL_GREEN; - obj->Swizzle[2] = GL_BLUE; - obj->Swizzle[3] = GL_ALPHA; - obj->_Swizzle = SWIZZLE_NOOP; - obj->sRGBDecode = GL_DECODE_EXT; -} - - -/** - * Some texture initialization can't be finished until we know which - * target it's getting bound to (GL_TEXTURE_1D/2D/etc). - */ -static void -finish_texture_init(struct gl_context *ctx, GLenum target, - struct gl_texture_object *obj) -{ - assert(obj->Target == 0); - - if (target == GL_TEXTURE_RECTANGLE_NV) { - /* have to init wrap and filter state here - kind of klunky */ - obj->WrapS = GL_CLAMP_TO_EDGE; - obj->WrapT = GL_CLAMP_TO_EDGE; - obj->WrapR = GL_CLAMP_TO_EDGE; - obj->MinFilter = GL_LINEAR; - if (ctx->Driver.TexParameter) { - static const GLfloat fparam_wrap[1] = {(GLfloat) GL_CLAMP_TO_EDGE}; - static const GLfloat fparam_filter[1] = {(GLfloat) GL_LINEAR}; - ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_S, fparam_wrap); - ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_T, fparam_wrap); - ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_R, fparam_wrap); - ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_MIN_FILTER, fparam_filter); - } - } -} - - -/** - * Deallocate a texture object struct. It should have already been - * removed from the texture object pool. - * Called via ctx->Driver.DeleteTexture() if not overriden by a driver. - * - * \param shared the shared GL state to which the object belongs. - * \param texObj the texture object to delete. - */ -void -_mesa_delete_texture_object(struct gl_context *ctx, - struct gl_texture_object *texObj) -{ - GLuint i, face; - - /* Set Target to an invalid value. With some assertions elsewhere - * we can try to detect possible use of deleted textures. - */ - texObj->Target = 0x99; - - _mesa_free_colortable_data(&texObj->Palette); - - /* free the texture images */ - for (face = 0; face < 6; face++) { - for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { - if (texObj->Image[face][i]) { - _mesa_delete_texture_image( ctx, texObj->Image[face][i] ); - } - } - } - - /* destroy the mutex -- it may have allocated memory (eg on bsd) */ - _glthread_DESTROY_MUTEX(texObj->Mutex); - - /* free this object */ - free(texObj); -} - - - -/** - * Copy texture object state from one texture object to another. - * Use for glPush/PopAttrib. - * - * \param dest destination texture object. - * \param src source texture object. - */ -void -_mesa_copy_texture_object( struct gl_texture_object *dest, - const struct gl_texture_object *src ) -{ - dest->Target = src->Target; - dest->Name = src->Name; - dest->Priority = src->Priority; - dest->BorderColor.f[0] = src->BorderColor.f[0]; - dest->BorderColor.f[1] = src->BorderColor.f[1]; - dest->BorderColor.f[2] = src->BorderColor.f[2]; - dest->BorderColor.f[3] = src->BorderColor.f[3]; - dest->WrapS = src->WrapS; - dest->WrapT = src->WrapT; - dest->WrapR = src->WrapR; - dest->MinFilter = src->MinFilter; - dest->MagFilter = src->MagFilter; - dest->MinLod = src->MinLod; - dest->MaxLod = src->MaxLod; - dest->LodBias = src->LodBias; - dest->BaseLevel = src->BaseLevel; - dest->MaxLevel = src->MaxLevel; - dest->MaxAnisotropy = src->MaxAnisotropy; - dest->CompareMode = src->CompareMode; - dest->CompareFunc = src->CompareFunc; - dest->CompareFailValue = src->CompareFailValue; - dest->DepthMode = src->DepthMode; - dest->_MaxLevel = src->_MaxLevel; - dest->_MaxLambda = src->_MaxLambda; - dest->GenerateMipmap = src->GenerateMipmap; - dest->Palette = src->Palette; - dest->_Complete = src->_Complete; - COPY_4V(dest->Swizzle, src->Swizzle); - dest->_Swizzle = src->_Swizzle; -} - - -/** - * Free all texture images of the given texture object. - * - * \param ctx GL context. - * \param t texture object. - * - * \sa _mesa_clear_texture_image(). - */ -void -_mesa_clear_texture_object(struct gl_context *ctx, - struct gl_texture_object *texObj) -{ - GLuint i, j; - - if (texObj->Target == 0) - return; - - for (i = 0; i < MAX_FACES; i++) { - for (j = 0; j < MAX_TEXTURE_LEVELS; j++) { - struct gl_texture_image *texImage = texObj->Image[i][j]; - if (texImage) - _mesa_clear_texture_image(ctx, texImage); - } - } -} - - -/** - * Check if the given texture object is valid by examining its Target field. - * For debugging only. - */ -static GLboolean -valid_texture_object(const struct gl_texture_object *tex) -{ - switch (tex->Target) { - case 0: - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_3D: - case GL_TEXTURE_CUBE_MAP_ARB: - case GL_TEXTURE_RECTANGLE_NV: - case GL_TEXTURE_1D_ARRAY_EXT: - case GL_TEXTURE_2D_ARRAY_EXT: - return GL_TRUE; - case 0x99: - _mesa_problem(NULL, "invalid reference to a deleted texture object"); - return GL_FALSE; - default: - _mesa_problem(NULL, "invalid texture object Target 0x%x, Id = %u", - tex->Target, tex->Name); - return GL_FALSE; - } -} - - -/** - * Reference (or unreference) a texture object. - * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero). - * If 'tex' is non-null, increment its refcount. - */ -void -_mesa_reference_texobj(struct gl_texture_object **ptr, - struct gl_texture_object *tex) -{ - assert(ptr); - if (*ptr == tex) { - /* no change */ - return; - } - - if (*ptr) { - /* Unreference the old texture */ - GLboolean deleteFlag = GL_FALSE; - struct gl_texture_object *oldTex = *ptr; - - ASSERT(valid_texture_object(oldTex)); - (void) valid_texture_object; /* silence warning in release builds */ - - _glthread_LOCK_MUTEX(oldTex->Mutex); - ASSERT(oldTex->RefCount > 0); - oldTex->RefCount--; - - deleteFlag = (oldTex->RefCount == 0); - _glthread_UNLOCK_MUTEX(oldTex->Mutex); - - if (deleteFlag) { - GET_CURRENT_CONTEXT(ctx); - if (ctx) - ctx->Driver.DeleteTexture(ctx, oldTex); - else - _mesa_problem(NULL, "Unable to delete texture, no context"); - } - - *ptr = NULL; - } - assert(!*ptr); - - if (tex) { - /* reference new texture */ - ASSERT(valid_texture_object(tex)); - _glthread_LOCK_MUTEX(tex->Mutex); - if (tex->RefCount == 0) { - /* this texture's being deleted (look just above) */ - /* Not sure this can every really happen. Warn if it does. */ - _mesa_problem(NULL, "referencing deleted texture object"); - *ptr = NULL; - } - else { - tex->RefCount++; - *ptr = tex; - } - _glthread_UNLOCK_MUTEX(tex->Mutex); - } -} - - - -/** - * Mark a texture object as incomplete. - * \param t texture object - * \param fmt... string describing why it's incomplete (for debugging). - */ -static void -incomplete(struct gl_texture_object *t, const char *fmt, ...) -{ -#if 0 - va_list args; - char s[100]; - - va_start(args, fmt); - vsnprintf(s, sizeof(s), fmt, args); - va_end(args); - - printf("Texture Obj %d incomplete because: %s\n", t->Name, s); -#endif - t->_Complete = GL_FALSE; -} - - -/** - * Examine a texture object to determine if it is complete. - * - * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE - * accordingly. - * - * \param ctx GL context. - * \param t texture object. - * - * According to the texture target, verifies that each of the mipmaps is - * present and has the expected size. - */ -void -_mesa_test_texobj_completeness( const struct gl_context *ctx, - struct gl_texture_object *t ) -{ - const GLint baseLevel = t->BaseLevel; - GLint maxLog2 = 0, maxLevels = 0; - - t->_Complete = GL_TRUE; /* be optimistic */ - - /* Detect cases where the application set the base level to an invalid - * value. - */ - if ((baseLevel < 0) || (baseLevel >= MAX_TEXTURE_LEVELS)) { - incomplete(t, "base level = %d is invalid", baseLevel); - return; - } - - /* Always need the base level image */ - if (!t->Image[0][baseLevel]) { - incomplete(t, "Image[baseLevel=%d] == NULL", baseLevel); - return; - } - - /* Check width/height/depth for zero */ - if (t->Image[0][baseLevel]->Width == 0 || - t->Image[0][baseLevel]->Height == 0 || - t->Image[0][baseLevel]->Depth == 0) { - incomplete(t, "texture width = 0"); - return; - } - - /* Compute _MaxLevel */ - if ((t->Target == GL_TEXTURE_1D) || - (t->Target == GL_TEXTURE_1D_ARRAY_EXT)) { - maxLog2 = t->Image[0][baseLevel]->WidthLog2; - maxLevels = ctx->Const.MaxTextureLevels; - } - else if ((t->Target == GL_TEXTURE_2D) || - (t->Target == GL_TEXTURE_2D_ARRAY_EXT)) { - maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLevels = ctx->Const.MaxTextureLevels; - } - else if (t->Target == GL_TEXTURE_3D) { - GLint max = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLog2 = MAX2(max, (GLint)(t->Image[0][baseLevel]->DepthLog2)); - maxLevels = ctx->Const.Max3DTextureLevels; - } - else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLevels = ctx->Const.MaxCubeTextureLevels; - } - else if (t->Target == GL_TEXTURE_RECTANGLE_NV) { - maxLog2 = 0; /* not applicable */ - maxLevels = 1; /* no mipmapping */ - } - else { - _mesa_problem(ctx, "Bad t->Target in _mesa_test_texobj_completeness"); - return; - } - - ASSERT(maxLevels > 0); - - if (t->MaxLevel < t->BaseLevel) { - incomplete(t, "MAX_LEVEL (%d) < BASE_LEVEL (%d)", - t->MaxLevel, t->BaseLevel); - return; - } - - t->_MaxLevel = baseLevel + maxLog2; - t->_MaxLevel = MIN2(t->_MaxLevel, t->MaxLevel); - t->_MaxLevel = MIN2(t->_MaxLevel, maxLevels - 1); - - /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */ - t->_MaxLambda = (GLfloat) (t->_MaxLevel - t->BaseLevel); - - if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - /* make sure that all six cube map level 0 images are the same size */ - const GLuint w = t->Image[0][baseLevel]->Width2; - const GLuint h = t->Image[0][baseLevel]->Height2; - GLuint face; - for (face = 1; face < 6; face++) { - if (t->Image[face][baseLevel] == NULL || - t->Image[face][baseLevel]->Width2 != w || - t->Image[face][baseLevel]->Height2 != h) { - incomplete(t, "Cube face missing or mismatched size"); - return; - } - } - } - - /* extra checking for mipmaps */ - if (t->MinFilter != GL_NEAREST && t->MinFilter != GL_LINEAR) { - /* - * Mipmapping: determine if we have a complete set of mipmaps - */ - GLint i; - GLint minLevel = baseLevel; - GLint maxLevel = t->_MaxLevel; - - if (minLevel > maxLevel) { - incomplete(t, "minLevel > maxLevel"); - return; - } - - /* Test dimension-independent attributes */ - for (i = minLevel; i <= maxLevel; i++) { - if (t->Image[0][i]) { - if (t->Image[0][i]->TexFormat != t->Image[0][baseLevel]->TexFormat) { - incomplete(t, "Format[i] != Format[baseLevel]"); - return; - } - if (t->Image[0][i]->Border != t->Image[0][baseLevel]->Border) { - incomplete(t, "Border[i] != Border[baseLevel]"); - return; - } - } - } - - /* Test things which depend on number of texture image dimensions */ - if ((t->Target == GL_TEXTURE_1D) || - (t->Target == GL_TEXTURE_1D_ARRAY_EXT)) { - /* Test 1-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - incomplete(t, "1D Image[0][i] == NULL"); - return; - } - if (t->Image[0][i]->Width2 != width ) { - incomplete(t, "1D Image[0][i] bad width"); - return; - } - } - if (width == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if ((t->Target == GL_TEXTURE_2D) || - (t->Target == GL_TEXTURE_2D_ARRAY_EXT)) { - /* Test 2-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - incomplete(t, "2D Image[0][i] == NULL"); - return; - } - if (t->Image[0][i]->Width2 != width) { - incomplete(t, "2D Image[0][i] bad width"); - return; - } - if (t->Image[0][i]->Height2 != height) { - incomplete(t, "2D Image[0][i] bad height"); - return; - } - if (width==1 && height==1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - } - else if (t->Target == GL_TEXTURE_3D) { - /* Test 3-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - GLuint depth = t->Image[0][baseLevel]->Depth2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (depth > 1) { - depth /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - incomplete(t, "3D Image[0][i] == NULL"); - return; - } - if (t->Image[0][i]->_BaseFormat == GL_DEPTH_COMPONENT) { - incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex"); - return; - } - if (t->Image[0][i]->Width2 != width) { - incomplete(t, "3D Image[0][i] bad width"); - return; - } - if (t->Image[0][i]->Height2 != height) { - incomplete(t, "3D Image[0][i] bad height"); - return; - } - if (t->Image[0][i]->Depth2 != depth) { - incomplete(t, "3D Image[0][i] bad depth"); - return; - } - } - if (width == 1 && height == 1 && depth == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - /* make sure 6 cube faces are consistant */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (i >= minLevel && i <= maxLevel) { - GLuint face; - for (face = 0; face < 6; face++) { - /* check that we have images defined */ - if (!t->Image[face][i]) { - incomplete(t, "CubeMap Image[n][i] == NULL"); - return; - } - /* Don't support GL_DEPTH_COMPONENT for cube maps */ - if (t->Image[face][i]->_BaseFormat == GL_DEPTH_COMPONENT) { - incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex"); - return; - } - /* check that all six images have same size */ - if (t->Image[face][i]->Width2 != width || - t->Image[face][i]->Height2 != height) { - incomplete(t, "CubeMap Image[n][i] bad size"); - return; - } - } - } - if (width == 1 && height == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if (t->Target == GL_TEXTURE_RECTANGLE_NV) { - /* XXX special checking? */ - } - else { - /* Target = ??? */ - _mesa_problem(ctx, "Bug in gl_test_texture_object_completeness\n"); - } - } -} - - -/** - * Check if the given cube map texture is "cube complete" as defined in - * the OpenGL specification. - */ -GLboolean -_mesa_cube_complete(const struct gl_texture_object *texObj) -{ - const GLint baseLevel = texObj->BaseLevel; - const struct gl_texture_image *img0, *img; - GLuint face; - - if (texObj->Target != GL_TEXTURE_CUBE_MAP) - return GL_FALSE; - - if ((baseLevel < 0) || (baseLevel >= MAX_TEXTURE_LEVELS)) - return GL_FALSE; - - /* check first face */ - img0 = texObj->Image[0][baseLevel]; - if (!img0 || - img0->Width < 1 || - img0->Width != img0->Height) - return GL_FALSE; - - /* check remaining faces vs. first face */ - for (face = 1; face < 6; face++) { - img = texObj->Image[face][baseLevel]; - if (!img || - img->Width != img0->Width || - img->Height != img0->Height || - img->TexFormat != img0->TexFormat) - return GL_FALSE; - } - - return GL_TRUE; -} - - -/** - * Mark a texture object dirty. It forces the object to be incomplete - * and optionally forces the context to re-validate its state. - * - * \param ctx GL context. - * \param texObj texture object. - * \param invalidate_state also invalidate context state. - */ -void -_mesa_dirty_texobj(struct gl_context *ctx, struct gl_texture_object *texObj, - GLboolean invalidate_state) -{ - texObj->_Complete = GL_FALSE; - if (invalidate_state) - ctx->NewState |= _NEW_TEXTURE; -} - - -/** - * Return pointer to a default/fallback texture. - * The texture is a 2D 8x8 RGBA texture with all texels = (0,0,0,1). - * That's the value a sampler should get when sampling from an - * incomplete texture. - */ -struct gl_texture_object * -_mesa_get_fallback_texture(struct gl_context *ctx) -{ - if (!ctx->Shared->FallbackTex) { - /* create fallback texture now */ - static GLubyte texels[8 * 8][4]; - struct gl_texture_object *texObj; - struct gl_texture_image *texImage; - gl_format texFormat; - GLuint i; - - for (i = 0; i < 8 * 8; i++) { - texels[i][0] = - texels[i][1] = - texels[i][2] = 0x0; - texels[i][3] = 0xff; - } - - /* create texture object */ - texObj = ctx->Driver.NewTextureObject(ctx, 0, GL_TEXTURE_2D); - assert(texObj->RefCount == 1); - texObj->MinFilter = GL_NEAREST; - texObj->MagFilter = GL_NEAREST; - - /* create level[0] texture image */ - texImage = _mesa_get_tex_image(ctx, texObj, GL_TEXTURE_2D, 0); - - texFormat = ctx->Driver.ChooseTextureFormat(ctx, GL_RGBA, GL_RGBA, - GL_UNSIGNED_BYTE); - - /* init the image fields */ - _mesa_init_teximage_fields(ctx, GL_TEXTURE_2D, texImage, - 8, 8, 1, 0, GL_RGBA, texFormat); - - ASSERT(texImage->TexFormat != MESA_FORMAT_NONE); - - /* set image data */ - ctx->Driver.TexImage2D(ctx, GL_TEXTURE_2D, 0, GL_RGBA, - 8, 8, 0, - GL_RGBA, GL_UNSIGNED_BYTE, texels, - &ctx->DefaultPacking, texObj, texImage); - - _mesa_test_texobj_completeness(ctx, texObj); - assert(texObj->_Complete); - - ctx->Shared->FallbackTex = texObj; - } - return ctx->Shared->FallbackTex; -} - - -/*@}*/ - - -/***********************************************************************/ -/** \name API functions */ -/*@{*/ - - -/** - * Generate texture names. - * - * \param n number of texture names to be generated. - * \param textures an array in which will hold the generated texture names. - * - * \sa glGenTextures(). - * - * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture - * IDs which are stored in \p textures. Corresponding empty texture - * objects are also generated. - */ -void GLAPIENTRY -_mesa_GenTextures( GLsizei n, GLuint *textures ) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glGenTextures" ); - return; - } - - if (!textures) - return; - - /* - * This must be atomic (generation and allocation of texture IDs) - */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->TexObjects, n); - - /* Allocate new, empty texture objects */ - for (i = 0; i < n; i++) { - struct gl_texture_object *texObj; - GLuint name = first + i; - GLenum target = 0; - texObj = (*ctx->Driver.NewTextureObject)( ctx, name, target); - if (!texObj) { - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTextures"); - return; - } - - /* insert into hash table */ - _mesa_HashInsert(ctx->Shared->TexObjects, texObj->Name, texObj); - - textures[i] = name; - } - - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); -} - - -/** - * Check if the given texture object is bound to the current draw or - * read framebuffer. If so, Unbind it. - */ -static void -unbind_texobj_from_fbo(struct gl_context *ctx, - struct gl_texture_object *texObj) -{ - const GLuint n = (ctx->DrawBuffer == ctx->ReadBuffer) ? 1 : 2; - GLuint i; - - for (i = 0; i < n; i++) { - struct gl_framebuffer *fb = (i == 0) ? ctx->DrawBuffer : ctx->ReadBuffer; - if (fb->Name) { - GLuint j; - for (j = 0; j < BUFFER_COUNT; j++) { - if (fb->Attachment[j].Type == GL_TEXTURE && - fb->Attachment[j].Texture == texObj) { - _mesa_remove_attachment(ctx, fb->Attachment + j); - } - } - } - } -} - - -/** - * Check if the given texture object is bound to any texture image units and - * unbind it if so (revert to default textures). - */ -static void -unbind_texobj_from_texunits(struct gl_context *ctx, - struct gl_texture_object *texObj) -{ - GLuint u, tex; - - for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) { - struct gl_texture_unit *unit = &ctx->Texture.Unit[u]; - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - if (texObj == unit->CurrentTex[tex]) { - _mesa_reference_texobj(&unit->CurrentTex[tex], - ctx->Shared->DefaultTex[tex]); - ASSERT(unit->CurrentTex[tex]); - break; - } - } - } -} - - -/** - * Delete named textures. - * - * \param n number of textures to be deleted. - * \param textures array of texture IDs to be deleted. - * - * \sa glDeleteTextures(). - * - * If we're about to delete a texture that's currently bound to any - * texture unit, unbind the texture first. Decrement the reference - * count on the texture object and delete it if it's zero. - * Recall that texture objects can be shared among several rendering - * contexts. - */ -void GLAPIENTRY -_mesa_DeleteTextures( GLsizei n, const GLuint *textures) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */ - - if (!textures) - return; - - for (i = 0; i < n; i++) { - if (textures[i] > 0) { - struct gl_texture_object *delObj - = _mesa_lookup_texture(ctx, textures[i]); - - if (delObj) { - _mesa_lock_texture(ctx, delObj); - - /* Check if texture is bound to any framebuffer objects. - * If so, unbind. - * See section 4.4.2.3 of GL_EXT_framebuffer_object. - */ - unbind_texobj_from_fbo(ctx, delObj); - - /* Check if this texture is currently bound to any texture units. - * If so, unbind it. - */ - unbind_texobj_from_texunits(ctx, delObj); - - _mesa_unlock_texture(ctx, delObj); - - ctx->NewState |= _NEW_TEXTURE; - - /* The texture _name_ is now free for re-use. - * Remove it from the hash table now. - */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashRemove(ctx->Shared->TexObjects, delObj->Name); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - - /* Unreference the texobj. If refcount hits zero, the texture - * will be deleted. - */ - _mesa_reference_texobj(&delObj, NULL); - } - } - } -} - - -/** - * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D - * into the corresponding Mesa texture target index. - * Note that proxy targets are not valid here. - * \return TEXTURE_x_INDEX or -1 if target is invalid - */ -static GLint -target_enum_to_index(GLenum target) -{ - switch (target) { - case GL_TEXTURE_1D: - return TEXTURE_1D_INDEX; - case GL_TEXTURE_2D: - return TEXTURE_2D_INDEX; - case GL_TEXTURE_3D: - return TEXTURE_3D_INDEX; - case GL_TEXTURE_CUBE_MAP_ARB: - return TEXTURE_CUBE_INDEX; - case GL_TEXTURE_RECTANGLE_NV: - return TEXTURE_RECT_INDEX; - case GL_TEXTURE_1D_ARRAY_EXT: - return TEXTURE_1D_ARRAY_INDEX; - case GL_TEXTURE_2D_ARRAY_EXT: - return TEXTURE_2D_ARRAY_INDEX; - default: - return -1; - } -} - - -/** - * Bind a named texture to a texturing target. - * - * \param target texture target. - * \param texName texture name. - * - * \sa glBindTexture(). - * - * Determines the old texture object bound and returns immediately if rebinding - * the same texture. Get the current texture which is either a default texture - * if name is null, a named texture from the hash, or a new texture if the - * given texture name is new. Increments its reference count, binds it, and - * calls dd_function_table::BindTexture. Decrements the old texture reference - * count and deletes it if it reaches zero. - */ -void GLAPIENTRY -_mesa_BindTexture( GLenum target, GLuint texName ) -{ - GET_CURRENT_CONTEXT(ctx); - struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); - struct gl_texture_object *newTexObj = NULL; - GLint targetIndex; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glBindTexture %s %d\n", - _mesa_lookup_enum_by_nr(target), (GLint) texName); - - targetIndex = target_enum_to_index(target); - if (targetIndex < 0) { - _mesa_error(ctx, GL_INVALID_ENUM, "glBindTexture(target)"); - return; - } - assert(targetIndex < NUM_TEXTURE_TARGETS); - - /* - * Get pointer to new texture object (newTexObj) - */ - if (texName == 0) { - /* Use a default texture object */ - newTexObj = ctx->Shared->DefaultTex[targetIndex]; - } - else { - /* non-default texture object */ - newTexObj = _mesa_lookup_texture(ctx, texName); - if (newTexObj) { - /* error checking */ - if (newTexObj->Target != 0 && newTexObj->Target != target) { - /* the named texture object's target doesn't match the given target */ - _mesa_error( ctx, GL_INVALID_OPERATION, - "glBindTexture(target mismatch)" ); - return; - } - if (newTexObj->Target == 0) { - finish_texture_init(ctx, target, newTexObj); - } - } - else { - /* if this is a new texture id, allocate a texture object now */ - newTexObj = (*ctx->Driver.NewTextureObject)(ctx, texName, target); - if (!newTexObj) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindTexture"); - return; - } - - /* and insert it into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->TexObjects, texName, newTexObj); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } - newTexObj->Target = target; - } - - assert(valid_texture_object(newTexObj)); - - /* Check if this texture is only used by this context and is already bound. - * If so, just return. - */ - { - GLboolean early_out; - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - early_out = ((ctx->Shared->RefCount == 1) - && (newTexObj == texUnit->CurrentTex[targetIndex])); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - if (early_out) { - return; - } - } - - /* flush before changing binding */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - - /* Do the actual binding. The refcount on the previously bound - * texture object will be decremented. It'll be deleted if the - * count hits zero. - */ - _mesa_reference_texobj(&texUnit->CurrentTex[targetIndex], newTexObj); - ASSERT(texUnit->CurrentTex[targetIndex]); - - /* Pass BindTexture call to device driver */ - if (ctx->Driver.BindTexture) - (*ctx->Driver.BindTexture)( ctx, target, newTexObj ); -} - - -/** - * Set texture priorities. - * - * \param n number of textures. - * \param texName texture names. - * \param priorities corresponding texture priorities. - * - * \sa glPrioritizeTextures(). - * - * Looks up each texture in the hash, clamps the corresponding priority between - * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture. - */ -void GLAPIENTRY -_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName, - const GLclampf *priorities ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (n < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" ); - return; - } - - if (!priorities) - return; - - for (i = 0; i < n; i++) { - if (texName[i] > 0) { - struct gl_texture_object *t = _mesa_lookup_texture(ctx, texName[i]); - if (t) { - t->Priority = CLAMP( priorities[i], 0.0F, 1.0F ); - } - } - } - - ctx->NewState |= _NEW_TEXTURE; -} - - - -/** - * See if textures are loaded in texture memory. - * - * \param n number of textures to query. - * \param texName array with the texture names. - * \param residences array which will hold the residence status. - * - * \return GL_TRUE if all textures are resident and \p residences is left unchanged, - * - * \sa glAreTexturesResident(). - * - * Looks up each texture in the hash and calls - * dd_function_table::IsTextureResident. - */ -GLboolean GLAPIENTRY -_mesa_AreTexturesResident(GLsizei n, const GLuint *texName, - GLboolean *residences) -{ - GET_CURRENT_CONTEXT(ctx); - GLboolean allResident = GL_TRUE; - GLint i, j; - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident(n)"); - return GL_FALSE; - } - - if (!texName || !residences) - return GL_FALSE; - - for (i = 0; i < n; i++) { - struct gl_texture_object *t; - if (texName[i] == 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident"); - return GL_FALSE; - } - t = _mesa_lookup_texture(ctx, texName[i]); - if (!t) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident"); - return GL_FALSE; - } - if (!ctx->Driver.IsTextureResident || - ctx->Driver.IsTextureResident(ctx, t)) { - /* The texture is resident */ - if (!allResident) - residences[i] = GL_TRUE; - } - else { - /* The texture is not resident */ - if (allResident) { - allResident = GL_FALSE; - for (j = 0; j < i; j++) - residences[j] = GL_TRUE; - } - residences[i] = GL_FALSE; - } - } - - return allResident; -} - - -/** - * See if a name corresponds to a texture. - * - * \param texture texture name. - * - * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE - * otherwise. - * - * \sa glIsTexture(). - * - * Calls _mesa_HashLookup(). - */ -GLboolean GLAPIENTRY -_mesa_IsTexture( GLuint texture ) -{ - struct gl_texture_object *t; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - if (!texture) - return GL_FALSE; - - t = _mesa_lookup_texture(ctx, texture); - - /* IsTexture is true only after object has been bound once. */ - return t && t->Target; -} - - -/** - * Simplest implementation of texture locking: grab the shared tex - * mutex. Examine the shared context state timestamp and if there has - * been a change, set the appropriate bits in ctx->NewState. - * - * This is used to deal with synchronizing things when a texture object - * is used/modified by different contexts (or threads) which are sharing - * the texture. - * - * See also _mesa_lock/unlock_texture() in teximage.h - */ -void -_mesa_lock_context_textures( struct gl_context *ctx ) -{ - _glthread_LOCK_MUTEX(ctx->Shared->TexMutex); - - if (ctx->Shared->TextureStateStamp != ctx->TextureStateTimestamp) { - ctx->NewState |= _NEW_TEXTURE; - ctx->TextureStateTimestamp = ctx->Shared->TextureStateStamp; - } -} - - -void -_mesa_unlock_context_textures( struct gl_context *ctx ) -{ - assert(ctx->Shared->TextureStateStamp == ctx->TextureStateTimestamp); - _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex); -} - -/*@}*/ +/**
+ * \file texobj.c
+ * Texture object management.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "mfeatures.h"
+#include "colortab.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "formats.h"
+#include "hash.h"
+#include "imports.h"
+#include "macros.h"
+#include "teximage.h"
+#include "texobj.h"
+#include "texstate.h"
+#include "mtypes.h"
+#include "program/prog_instruction.h"
+
+
+
+/**********************************************************************/
+/** \name Internal functions */
+/*@{*/
+
+
+/**
+ * Return the gl_texture_object for a given ID.
+ */
+struct gl_texture_object *
+_mesa_lookup_texture(struct gl_context *ctx, GLuint id)
+{
+ return (struct gl_texture_object *)
+ _mesa_HashLookup(ctx->Shared->TexObjects, id);
+}
+
+
+
+/**
+ * Allocate and initialize a new texture object. But don't put it into the
+ * texture object hash table.
+ *
+ * Called via ctx->Driver.NewTextureObject, unless overridden by a device
+ * driver.
+ *
+ * \param shared the shared GL state structure to contain the texture object
+ * \param name integer name for the texture object
+ * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
+ * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
+ * of GenTextures()
+ *
+ * \return pointer to new texture object.
+ */
+struct gl_texture_object *
+_mesa_new_texture_object( struct gl_context *ctx, GLuint name, GLenum target )
+{
+ struct gl_texture_object *obj;
+ (void) ctx;
+ obj = MALLOC_STRUCT(gl_texture_object);
+ _mesa_initialize_texture_object(obj, name, target);
+ return obj;
+}
+
+
+/**
+ * Initialize a new texture object to default values.
+ * \param obj the texture object
+ * \param name the texture name
+ * \param target the texture target
+ */
+void
+_mesa_initialize_texture_object( struct gl_texture_object *obj,
+ GLuint name, GLenum target )
+{
+ ASSERT(target == 0 ||
+ target == GL_TEXTURE_1D ||
+ target == GL_TEXTURE_2D ||
+ target == GL_TEXTURE_3D ||
+ target == GL_TEXTURE_CUBE_MAP_ARB ||
+ target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_TEXTURE_1D_ARRAY_EXT ||
+ target == GL_TEXTURE_2D_ARRAY_EXT);
+
+ memset(obj, 0, sizeof(*obj));
+ /* init the non-zero fields */
+ _glthread_INIT_MUTEX(obj->Mutex);
+ obj->RefCount = 1;
+ obj->Name = name;
+ obj->Target = target;
+ obj->Priority = 1.0F;
+ if (target == GL_TEXTURE_RECTANGLE_NV) {
+ obj->WrapS = GL_CLAMP_TO_EDGE;
+ obj->WrapT = GL_CLAMP_TO_EDGE;
+ obj->WrapR = GL_CLAMP_TO_EDGE;
+ obj->MinFilter = GL_LINEAR;
+ }
+ else {
+ obj->WrapS = GL_REPEAT;
+ obj->WrapT = GL_REPEAT;
+ obj->WrapR = GL_REPEAT;
+ obj->MinFilter = GL_NEAREST_MIPMAP_LINEAR;
+ }
+ obj->MagFilter = GL_LINEAR;
+ obj->MinLod = -1000.0;
+ obj->MaxLod = 1000.0;
+ obj->LodBias = 0.0;
+ obj->BaseLevel = 0;
+ obj->MaxLevel = 1000;
+ obj->MaxAnisotropy = 1.0;
+ obj->CompareMode = GL_NONE; /* ARB_shadow */
+ obj->CompareFunc = GL_LEQUAL; /* ARB_shadow */
+ obj->CompareFailValue = 0.0F; /* ARB_shadow_ambient */
+ obj->DepthMode = GL_LUMINANCE; /* ARB_depth_texture */
+ obj->Swizzle[0] = GL_RED;
+ obj->Swizzle[1] = GL_GREEN;
+ obj->Swizzle[2] = GL_BLUE;
+ obj->Swizzle[3] = GL_ALPHA;
+ obj->_Swizzle = SWIZZLE_NOOP;
+ obj->sRGBDecode = GL_DECODE_EXT;
+}
+
+
+/**
+ * Some texture initialization can't be finished until we know which
+ * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
+ */
+static void
+finish_texture_init(struct gl_context *ctx, GLenum target,
+ struct gl_texture_object *obj)
+{
+ assert(obj->Target == 0);
+
+ if (target == GL_TEXTURE_RECTANGLE_NV) {
+ /* have to init wrap and filter state here - kind of klunky */
+ obj->WrapS = GL_CLAMP_TO_EDGE;
+ obj->WrapT = GL_CLAMP_TO_EDGE;
+ obj->WrapR = GL_CLAMP_TO_EDGE;
+ obj->MinFilter = GL_LINEAR;
+ if (ctx->Driver.TexParameter) {
+ static const GLfloat fparam_wrap[1] = {(GLfloat) GL_CLAMP_TO_EDGE};
+ static const GLfloat fparam_filter[1] = {(GLfloat) GL_LINEAR};
+ ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_S, fparam_wrap);
+ ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_T, fparam_wrap);
+ ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_WRAP_R, fparam_wrap);
+ ctx->Driver.TexParameter(ctx, target, obj, GL_TEXTURE_MIN_FILTER, fparam_filter);
+ }
+ }
+}
+
+
+/**
+ * Deallocate a texture object struct. It should have already been
+ * removed from the texture object pool.
+ * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
+ *
+ * \param shared the shared GL state to which the object belongs.
+ * \param texObj the texture object to delete.
+ */
+void
+_mesa_delete_texture_object(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ GLuint i, face;
+
+ /* Set Target to an invalid value. With some assertions elsewhere
+ * we can try to detect possible use of deleted textures.
+ */
+ texObj->Target = 0x99;
+
+ _mesa_free_colortable_data(&texObj->Palette);
+
+ /* free the texture images */
+ for (face = 0; face < 6; face++) {
+ for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
+ if (texObj->Image[face][i]) {
+ _mesa_delete_texture_image( ctx, texObj->Image[face][i] );
+ }
+ }
+ }
+
+ /* destroy the mutex -- it may have allocated memory (eg on bsd) */
+ _glthread_DESTROY_MUTEX(texObj->Mutex);
+
+ /* free this object */
+ free(texObj);
+}
+
+
+
+/**
+ * Copy texture object state from one texture object to another.
+ * Use for glPush/PopAttrib.
+ *
+ * \param dest destination texture object.
+ * \param src source texture object.
+ */
+void
+_mesa_copy_texture_object( struct gl_texture_object *dest,
+ const struct gl_texture_object *src )
+{
+ dest->Target = src->Target;
+ dest->Name = src->Name;
+ dest->Priority = src->Priority;
+ dest->BorderColor.f[0] = src->BorderColor.f[0];
+ dest->BorderColor.f[1] = src->BorderColor.f[1];
+ dest->BorderColor.f[2] = src->BorderColor.f[2];
+ dest->BorderColor.f[3] = src->BorderColor.f[3];
+ dest->WrapS = src->WrapS;
+ dest->WrapT = src->WrapT;
+ dest->WrapR = src->WrapR;
+ dest->MinFilter = src->MinFilter;
+ dest->MagFilter = src->MagFilter;
+ dest->MinLod = src->MinLod;
+ dest->MaxLod = src->MaxLod;
+ dest->LodBias = src->LodBias;
+ dest->BaseLevel = src->BaseLevel;
+ dest->MaxLevel = src->MaxLevel;
+ dest->MaxAnisotropy = src->MaxAnisotropy;
+ dest->CompareMode = src->CompareMode;
+ dest->CompareFunc = src->CompareFunc;
+ dest->CompareFailValue = src->CompareFailValue;
+ dest->DepthMode = src->DepthMode;
+ dest->_MaxLevel = src->_MaxLevel;
+ dest->_MaxLambda = src->_MaxLambda;
+ dest->GenerateMipmap = src->GenerateMipmap;
+ dest->Palette = src->Palette;
+ dest->_Complete = src->_Complete;
+ COPY_4V(dest->Swizzle, src->Swizzle);
+ dest->_Swizzle = src->_Swizzle;
+}
+
+
+/**
+ * Free all texture images of the given texture object.
+ *
+ * \param ctx GL context.
+ * \param t texture object.
+ *
+ * \sa _mesa_clear_texture_image().
+ */
+void
+_mesa_clear_texture_object(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ GLuint i, j;
+
+ if (texObj->Target == 0)
+ return;
+
+ for (i = 0; i < MAX_FACES; i++) {
+ for (j = 0; j < MAX_TEXTURE_LEVELS; j++) {
+ struct gl_texture_image *texImage = texObj->Image[i][j];
+ if (texImage)
+ _mesa_clear_texture_image(ctx, texImage);
+ }
+ }
+}
+
+
+/**
+ * Check if the given texture object is valid by examining its Target field.
+ * For debugging only.
+ */
+static GLboolean
+valid_texture_object(const struct gl_texture_object *tex)
+{
+ switch (tex->Target) {
+ case 0:
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return GL_TRUE;
+ case 0x99:
+ _mesa_problem(NULL, "invalid reference to a deleted texture object");
+ return GL_FALSE;
+ default:
+ _mesa_problem(NULL, "invalid texture object Target 0x%x, Id = %u",
+ tex->Target, tex->Name);
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Reference (or unreference) a texture object.
+ * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
+ * If 'tex' is non-null, increment its refcount.
+ */
+void
+_mesa_reference_texobj(struct gl_texture_object **ptr,
+ struct gl_texture_object *tex)
+{
+ assert(ptr);
+ if (*ptr == tex) {
+ /* no change */
+ return;
+ }
+
+ if (*ptr) {
+ /* Unreference the old texture */
+ GLboolean deleteFlag = GL_FALSE;
+ struct gl_texture_object *oldTex = *ptr;
+
+ ASSERT(valid_texture_object(oldTex));
+ (void) valid_texture_object; /* silence warning in release builds */
+
+ _glthread_LOCK_MUTEX(oldTex->Mutex);
+ ASSERT(oldTex->RefCount > 0);
+ oldTex->RefCount--;
+
+ deleteFlag = (oldTex->RefCount == 0);
+ _glthread_UNLOCK_MUTEX(oldTex->Mutex);
+
+ if (deleteFlag) {
+ GET_CURRENT_CONTEXT(ctx);
+ if (ctx)
+ ctx->Driver.DeleteTexture(ctx, oldTex);
+ else
+ _mesa_problem(NULL, "Unable to delete texture, no context");
+ }
+
+ *ptr = NULL;
+ }
+ assert(!*ptr);
+
+ if (tex) {
+ /* reference new texture */
+ ASSERT(valid_texture_object(tex));
+ _glthread_LOCK_MUTEX(tex->Mutex);
+ if (tex->RefCount == 0) {
+ /* this texture's being deleted (look just above) */
+ /* Not sure this can every really happen. Warn if it does. */
+ _mesa_problem(NULL, "referencing deleted texture object");
+ *ptr = NULL;
+ }
+ else {
+ tex->RefCount++;
+ *ptr = tex;
+ }
+ _glthread_UNLOCK_MUTEX(tex->Mutex);
+ }
+}
+
+
+
+/**
+ * Mark a texture object as incomplete.
+ * \param t texture object
+ * \param fmt... string describing why it's incomplete (for debugging).
+ */
+static void
+incomplete(struct gl_texture_object *t, const char *fmt, ...)
+{
+#if 0
+ va_list args;
+ char s[100];
+
+ va_start(args, fmt);
+ vsnprintf(s, sizeof(s), fmt, args);
+ va_end(args);
+
+ printf("Texture Obj %d incomplete because: %s\n", t->Name, s);
+#endif
+ t->_Complete = GL_FALSE;
+}
+
+
+/**
+ * Examine a texture object to determine if it is complete.
+ *
+ * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
+ * accordingly.
+ *
+ * \param ctx GL context.
+ * \param t texture object.
+ *
+ * According to the texture target, verifies that each of the mipmaps is
+ * present and has the expected size.
+ */
+void
+_mesa_test_texobj_completeness( const struct gl_context *ctx,
+ struct gl_texture_object *t )
+{
+ const GLint baseLevel = t->BaseLevel;
+ GLint maxLog2 = 0, maxLevels = 0;
+
+ t->_Complete = GL_TRUE; /* be optimistic */
+
+ /* Detect cases where the application set the base level to an invalid
+ * value.
+ */
+ if ((baseLevel < 0) || (baseLevel >= MAX_TEXTURE_LEVELS)) {
+ incomplete(t, "base level = %d is invalid", baseLevel);
+ return;
+ }
+
+ /* Always need the base level image */
+ if (!t->Image[0][baseLevel]) {
+ incomplete(t, "Image[baseLevel=%d] == NULL", baseLevel);
+ return;
+ }
+
+ /* Check width/height/depth for zero */
+ if (t->Image[0][baseLevel]->Width == 0 ||
+ t->Image[0][baseLevel]->Height == 0 ||
+ t->Image[0][baseLevel]->Depth == 0) {
+ incomplete(t, "texture width = 0");
+ return;
+ }
+
+ /* Compute _MaxLevel */
+ if ((t->Target == GL_TEXTURE_1D) ||
+ (t->Target == GL_TEXTURE_1D_ARRAY_EXT)) {
+ maxLog2 = t->Image[0][baseLevel]->WidthLog2;
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if ((t->Target == GL_TEXTURE_2D) ||
+ (t->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+ maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2,
+ t->Image[0][baseLevel]->HeightLog2);
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (t->Target == GL_TEXTURE_3D) {
+ GLint max = MAX2(t->Image[0][baseLevel]->WidthLog2,
+ t->Image[0][baseLevel]->HeightLog2);
+ maxLog2 = MAX2(max, (GLint)(t->Image[0][baseLevel]->DepthLog2));
+ maxLevels = ctx->Const.Max3DTextureLevels;
+ }
+ else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) {
+ maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2,
+ t->Image[0][baseLevel]->HeightLog2);
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else if (t->Target == GL_TEXTURE_RECTANGLE_NV) {
+ maxLog2 = 0; /* not applicable */
+ maxLevels = 1; /* no mipmapping */
+ }
+ else {
+ _mesa_problem(ctx, "Bad t->Target in _mesa_test_texobj_completeness");
+ return;
+ }
+
+ ASSERT(maxLevels > 0);
+
+ if (t->MaxLevel < t->BaseLevel) {
+ incomplete(t, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
+ t->MaxLevel, t->BaseLevel);
+ return;
+ }
+
+ t->_MaxLevel = baseLevel + maxLog2;
+ t->_MaxLevel = MIN2(t->_MaxLevel, t->MaxLevel);
+ t->_MaxLevel = MIN2(t->_MaxLevel, maxLevels - 1);
+
+ /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */
+ t->_MaxLambda = (GLfloat) (t->_MaxLevel - t->BaseLevel);
+
+ if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) {
+ /* make sure that all six cube map level 0 images are the same size */
+ const GLuint w = t->Image[0][baseLevel]->Width2;
+ const GLuint h = t->Image[0][baseLevel]->Height2;
+ GLuint face;
+ for (face = 1; face < 6; face++) {
+ if (t->Image[face][baseLevel] == NULL ||
+ t->Image[face][baseLevel]->Width2 != w ||
+ t->Image[face][baseLevel]->Height2 != h) {
+ incomplete(t, "Cube face missing or mismatched size");
+ return;
+ }
+ }
+ }
+
+ /* extra checking for mipmaps */
+ if (t->MinFilter != GL_NEAREST && t->MinFilter != GL_LINEAR) {
+ /*
+ * Mipmapping: determine if we have a complete set of mipmaps
+ */
+ GLint i;
+ GLint minLevel = baseLevel;
+ GLint maxLevel = t->_MaxLevel;
+
+ if (minLevel > maxLevel) {
+ incomplete(t, "minLevel > maxLevel");
+ return;
+ }
+
+ /* Test dimension-independent attributes */
+ for (i = minLevel; i <= maxLevel; i++) {
+ if (t->Image[0][i]) {
+ if (t->Image[0][i]->TexFormat != t->Image[0][baseLevel]->TexFormat) {
+ incomplete(t, "Format[i] != Format[baseLevel]");
+ return;
+ }
+ if (t->Image[0][i]->Border != t->Image[0][baseLevel]->Border) {
+ incomplete(t, "Border[i] != Border[baseLevel]");
+ return;
+ }
+ }
+ }
+
+ /* Test things which depend on number of texture image dimensions */
+ if ((t->Target == GL_TEXTURE_1D) ||
+ (t->Target == GL_TEXTURE_1D_ARRAY_EXT)) {
+ /* Test 1-D mipmaps */
+ GLuint width = t->Image[0][baseLevel]->Width2;
+ for (i = baseLevel + 1; i < maxLevels; i++) {
+ if (width > 1) {
+ width /= 2;
+ }
+ if (i >= minLevel && i <= maxLevel) {
+ if (!t->Image[0][i]) {
+ incomplete(t, "1D Image[0][i] == NULL");
+ return;
+ }
+ if (t->Image[0][i]->Width2 != width ) {
+ incomplete(t, "1D Image[0][i] bad width");
+ return;
+ }
+ }
+ if (width == 1) {
+ return; /* found smallest needed mipmap, all done! */
+ }
+ }
+ }
+ else if ((t->Target == GL_TEXTURE_2D) ||
+ (t->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+ /* Test 2-D mipmaps */
+ GLuint width = t->Image[0][baseLevel]->Width2;
+ GLuint height = t->Image[0][baseLevel]->Height2;
+ for (i = baseLevel + 1; i < maxLevels; i++) {
+ if (width > 1) {
+ width /= 2;
+ }
+ if (height > 1) {
+ height /= 2;
+ }
+ if (i >= minLevel && i <= maxLevel) {
+ if (!t->Image[0][i]) {
+ incomplete(t, "2D Image[0][i] == NULL");
+ return;
+ }
+ if (t->Image[0][i]->Width2 != width) {
+ incomplete(t, "2D Image[0][i] bad width");
+ return;
+ }
+ if (t->Image[0][i]->Height2 != height) {
+ incomplete(t, "2D Image[0][i] bad height");
+ return;
+ }
+ if (width==1 && height==1) {
+ return; /* found smallest needed mipmap, all done! */
+ }
+ }
+ }
+ }
+ else if (t->Target == GL_TEXTURE_3D) {
+ /* Test 3-D mipmaps */
+ GLuint width = t->Image[0][baseLevel]->Width2;
+ GLuint height = t->Image[0][baseLevel]->Height2;
+ GLuint depth = t->Image[0][baseLevel]->Depth2;
+ for (i = baseLevel + 1; i < maxLevels; i++) {
+ if (width > 1) {
+ width /= 2;
+ }
+ if (height > 1) {
+ height /= 2;
+ }
+ if (depth > 1) {
+ depth /= 2;
+ }
+ if (i >= minLevel && i <= maxLevel) {
+ if (!t->Image[0][i]) {
+ incomplete(t, "3D Image[0][i] == NULL");
+ return;
+ }
+ if (t->Image[0][i]->_BaseFormat == GL_DEPTH_COMPONENT) {
+ incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex");
+ return;
+ }
+ if (t->Image[0][i]->Width2 != width) {
+ incomplete(t, "3D Image[0][i] bad width");
+ return;
+ }
+ if (t->Image[0][i]->Height2 != height) {
+ incomplete(t, "3D Image[0][i] bad height");
+ return;
+ }
+ if (t->Image[0][i]->Depth2 != depth) {
+ incomplete(t, "3D Image[0][i] bad depth");
+ return;
+ }
+ }
+ if (width == 1 && height == 1 && depth == 1) {
+ return; /* found smallest needed mipmap, all done! */
+ }
+ }
+ }
+ else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) {
+ /* make sure 6 cube faces are consistant */
+ GLuint width = t->Image[0][baseLevel]->Width2;
+ GLuint height = t->Image[0][baseLevel]->Height2;
+ for (i = baseLevel + 1; i < maxLevels; i++) {
+ if (width > 1) {
+ width /= 2;
+ }
+ if (height > 1) {
+ height /= 2;
+ }
+ if (i >= minLevel && i <= maxLevel) {
+ GLuint face;
+ for (face = 0; face < 6; face++) {
+ /* check that we have images defined */
+ if (!t->Image[face][i]) {
+ incomplete(t, "CubeMap Image[n][i] == NULL");
+ return;
+ }
+ /* Don't support GL_DEPTH_COMPONENT for cube maps */
+ if (t->Image[face][i]->_BaseFormat == GL_DEPTH_COMPONENT) {
+ incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex");
+ return;
+ }
+ /* check that all six images have same size */
+ if (t->Image[face][i]->Width2 != width ||
+ t->Image[face][i]->Height2 != height) {
+ incomplete(t, "CubeMap Image[n][i] bad size");
+ return;
+ }
+ }
+ }
+ if (width == 1 && height == 1) {
+ return; /* found smallest needed mipmap, all done! */
+ }
+ }
+ }
+ else if (t->Target == GL_TEXTURE_RECTANGLE_NV) {
+ /* XXX special checking? */
+ }
+ else {
+ /* Target = ??? */
+ _mesa_problem(ctx, "Bug in gl_test_texture_object_completeness\n");
+ }
+ }
+}
+
+
+/**
+ * Check if the given cube map texture is "cube complete" as defined in
+ * the OpenGL specification.
+ */
+GLboolean
+_mesa_cube_complete(const struct gl_texture_object *texObj)
+{
+ const GLint baseLevel = texObj->BaseLevel;
+ const struct gl_texture_image *img0, *img;
+ GLuint face;
+
+ if (texObj->Target != GL_TEXTURE_CUBE_MAP)
+ return GL_FALSE;
+
+ if ((baseLevel < 0) || (baseLevel >= MAX_TEXTURE_LEVELS))
+ return GL_FALSE;
+
+ /* check first face */
+ img0 = texObj->Image[0][baseLevel];
+ if (!img0 ||
+ img0->Width < 1 ||
+ img0->Width != img0->Height)
+ return GL_FALSE;
+
+ /* check remaining faces vs. first face */
+ for (face = 1; face < 6; face++) {
+ img = texObj->Image[face][baseLevel];
+ if (!img ||
+ img->Width != img0->Width ||
+ img->Height != img0->Height ||
+ img->TexFormat != img0->TexFormat)
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Mark a texture object dirty. It forces the object to be incomplete
+ * and optionally forces the context to re-validate its state.
+ *
+ * \param ctx GL context.
+ * \param texObj texture object.
+ * \param invalidate_state also invalidate context state.
+ */
+void
+_mesa_dirty_texobj(struct gl_context *ctx, struct gl_texture_object *texObj,
+ GLboolean invalidate_state)
+{
+ texObj->_Complete = GL_FALSE;
+ if (invalidate_state)
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+/**
+ * Return pointer to a default/fallback texture.
+ * The texture is a 2D 8x8 RGBA texture with all texels = (0,0,0,1).
+ * That's the value a sampler should get when sampling from an
+ * incomplete texture.
+ */
+struct gl_texture_object *
+_mesa_get_fallback_texture(struct gl_context *ctx)
+{
+ if (!ctx->Shared->FallbackTex) {
+ /* create fallback texture now */
+ static GLubyte texels[8 * 8][4];
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ gl_format texFormat;
+ GLuint i;
+
+ for (i = 0; i < 8 * 8; i++) {
+ texels[i][0] =
+ texels[i][1] =
+ texels[i][2] = 0x0;
+ texels[i][3] = 0xff;
+ }
+
+ /* create texture object */
+ texObj = ctx->Driver.NewTextureObject(ctx, 0, GL_TEXTURE_2D);
+ assert(texObj->RefCount == 1);
+ texObj->MinFilter = GL_NEAREST;
+ texObj->MagFilter = GL_NEAREST;
+
+ /* create level[0] texture image */
+ texImage = _mesa_get_tex_image(ctx, texObj, GL_TEXTURE_2D, 0);
+
+ texFormat = ctx->Driver.ChooseTextureFormat(ctx, GL_RGBA, GL_RGBA,
+ GL_UNSIGNED_BYTE);
+
+ /* init the image fields */
+ _mesa_init_teximage_fields(ctx, GL_TEXTURE_2D, texImage,
+ 8, 8, 1, 0, GL_RGBA, texFormat);
+
+ ASSERT(texImage->TexFormat != MESA_FORMAT_NONE);
+
+ /* set image data */
+ ctx->Driver.TexImage2D(ctx, GL_TEXTURE_2D, 0, GL_RGBA,
+ 8, 8, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, texels,
+ &ctx->DefaultPacking, texObj, texImage);
+
+ _mesa_test_texobj_completeness(ctx, texObj);
+ assert(texObj->_Complete);
+
+ ctx->Shared->FallbackTex = texObj;
+ }
+ return ctx->Shared->FallbackTex;
+}
+
+
+/*@}*/
+
+
+/***********************************************************************/
+/** \name API functions */
+/*@{*/
+
+
+/**
+ * Generate texture names.
+ *
+ * \param n number of texture names to be generated.
+ * \param textures an array in which will hold the generated texture names.
+ *
+ * \sa glGenTextures().
+ *
+ * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
+ * IDs which are stored in \p textures. Corresponding empty texture
+ * objects are also generated.
+ */
+void GLAPIENTRY
+_mesa_GenTextures( GLsizei n, GLuint *textures )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLint i;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (n < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glGenTextures" );
+ return;
+ }
+
+ if (!textures)
+ return;
+
+ /*
+ * This must be atomic (generation and allocation of texture IDs)
+ */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+
+ first = _mesa_HashFindFreeKeyBlock(ctx->Shared->TexObjects, n);
+
+ /* Allocate new, empty texture objects */
+ for (i = 0; i < n; i++) {
+ struct gl_texture_object *texObj;
+ GLuint name = first + i;
+ GLenum target = 0;
+ texObj = (*ctx->Driver.NewTextureObject)( ctx, name, target);
+ if (!texObj) {
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTextures");
+ return;
+ }
+
+ /* insert into hash table */
+ _mesa_HashInsert(ctx->Shared->TexObjects, texObj->Name, texObj);
+
+ textures[i] = name;
+ }
+
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+}
+
+
+/**
+ * Check if the given texture object is bound to the current draw or
+ * read framebuffer. If so, Unbind it.
+ */
+static void
+unbind_texobj_from_fbo(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ const GLuint n = (ctx->DrawBuffer == ctx->ReadBuffer) ? 1 : 2;
+ GLuint i;
+
+ for (i = 0; i < n; i++) {
+ struct gl_framebuffer *fb = (i == 0) ? ctx->DrawBuffer : ctx->ReadBuffer;
+ if (fb->Name) {
+ GLuint j;
+ for (j = 0; j < BUFFER_COUNT; j++) {
+ if (fb->Attachment[j].Type == GL_TEXTURE &&
+ fb->Attachment[j].Texture == texObj) {
+ _mesa_remove_attachment(ctx, fb->Attachment + j);
+ }
+ }
+ }
+ }
+}
+
+
+/**
+ * Check if the given texture object is bound to any texture image units and
+ * unbind it if so (revert to default textures).
+ */
+static void
+unbind_texobj_from_texunits(struct gl_context *ctx,
+ struct gl_texture_object *texObj)
+{
+ GLuint u, tex;
+
+ for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) {
+ struct gl_texture_unit *unit = &ctx->Texture.Unit[u];
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ if (texObj == unit->CurrentTex[tex]) {
+ _mesa_reference_texobj(&unit->CurrentTex[tex],
+ ctx->Shared->DefaultTex[tex]);
+ ASSERT(unit->CurrentTex[tex]);
+ break;
+ }
+ }
+ }
+}
+
+
+/**
+ * Delete named textures.
+ *
+ * \param n number of textures to be deleted.
+ * \param textures array of texture IDs to be deleted.
+ *
+ * \sa glDeleteTextures().
+ *
+ * If we're about to delete a texture that's currently bound to any
+ * texture unit, unbind the texture first. Decrement the reference
+ * count on the texture object and delete it if it's zero.
+ * Recall that texture objects can be shared among several rendering
+ * contexts.
+ */
+void GLAPIENTRY
+_mesa_DeleteTextures( GLsizei n, const GLuint *textures)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint i;
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */
+
+ if (!textures)
+ return;
+
+ for (i = 0; i < n; i++) {
+ if (textures[i] > 0) {
+ struct gl_texture_object *delObj
+ = _mesa_lookup_texture(ctx, textures[i]);
+
+ if (delObj) {
+ _mesa_lock_texture(ctx, delObj);
+
+ /* Check if texture is bound to any framebuffer objects.
+ * If so, unbind.
+ * See section 4.4.2.3 of GL_EXT_framebuffer_object.
+ */
+ unbind_texobj_from_fbo(ctx, delObj);
+
+ /* Check if this texture is currently bound to any texture units.
+ * If so, unbind it.
+ */
+ unbind_texobj_from_texunits(ctx, delObj);
+
+ _mesa_unlock_texture(ctx, delObj);
+
+ ctx->NewState |= _NEW_TEXTURE;
+
+ /* The texture _name_ is now free for re-use.
+ * Remove it from the hash table now.
+ */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashRemove(ctx->Shared->TexObjects, delObj->Name);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+
+ /* Unreference the texobj. If refcount hits zero, the texture
+ * will be deleted.
+ */
+ _mesa_reference_texobj(&delObj, NULL);
+ }
+ }
+ }
+}
+
+
+/**
+ * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
+ * into the corresponding Mesa texture target index.
+ * Note that proxy targets are not valid here.
+ * \return TEXTURE_x_INDEX or -1 if target is invalid
+ */
+static GLint
+target_enum_to_index(GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return TEXTURE_1D_INDEX;
+ case GL_TEXTURE_2D:
+ return TEXTURE_2D_INDEX;
+ case GL_TEXTURE_3D:
+ return TEXTURE_3D_INDEX;
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ return TEXTURE_CUBE_INDEX;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return TEXTURE_RECT_INDEX;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ return TEXTURE_1D_ARRAY_INDEX;
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return TEXTURE_2D_ARRAY_INDEX;
+ default:
+ return -1;
+ }
+}
+
+
+/**
+ * Bind a named texture to a texturing target.
+ *
+ * \param target texture target.
+ * \param texName texture name.
+ *
+ * \sa glBindTexture().
+ *
+ * Determines the old texture object bound and returns immediately if rebinding
+ * the same texture. Get the current texture which is either a default texture
+ * if name is null, a named texture from the hash, or a new texture if the
+ * given texture name is new. Increments its reference count, binds it, and
+ * calls dd_function_table::BindTexture. Decrements the old texture reference
+ * count and deletes it if it reaches zero.
+ */
+void GLAPIENTRY
+_mesa_BindTexture( GLenum target, GLuint texName )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+ struct gl_texture_object *newTexObj = NULL;
+ GLint targetIndex;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glBindTexture %s %d\n",
+ _mesa_lookup_enum_by_nr(target), (GLint) texName);
+
+ targetIndex = target_enum_to_index(target);
+ if (targetIndex < 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glBindTexture(target)");
+ return;
+ }
+ assert(targetIndex < NUM_TEXTURE_TARGETS);
+
+ /*
+ * Get pointer to new texture object (newTexObj)
+ */
+ if (texName == 0) {
+ /* Use a default texture object */
+ newTexObj = ctx->Shared->DefaultTex[targetIndex];
+ }
+ else {
+ /* non-default texture object */
+ newTexObj = _mesa_lookup_texture(ctx, texName);
+ if (newTexObj) {
+ /* error checking */
+ if (newTexObj->Target != 0 && newTexObj->Target != target) {
+ /* the named texture object's target doesn't match the given target */
+ _mesa_error( ctx, GL_INVALID_OPERATION,
+ "glBindTexture(target mismatch)" );
+ return;
+ }
+ if (newTexObj->Target == 0) {
+ finish_texture_init(ctx, target, newTexObj);
+ }
+ }
+ else {
+ /* if this is a new texture id, allocate a texture object now */
+ newTexObj = (*ctx->Driver.NewTextureObject)(ctx, texName, target);
+ if (!newTexObj) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindTexture");
+ return;
+ }
+
+ /* and insert it into hash table */
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ _mesa_HashInsert(ctx->Shared->TexObjects, texName, newTexObj);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ }
+ newTexObj->Target = target;
+ }
+
+ assert(valid_texture_object(newTexObj));
+
+ /* Check if this texture is only used by this context and is already bound.
+ * If so, just return.
+ */
+ {
+ GLboolean early_out;
+ _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+ early_out = ((ctx->Shared->RefCount == 1)
+ && (newTexObj == texUnit->CurrentTex[targetIndex]));
+ _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+ if (early_out) {
+ return;
+ }
+ }
+
+ /* flush before changing binding */
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+
+ /* Do the actual binding. The refcount on the previously bound
+ * texture object will be decremented. It'll be deleted if the
+ * count hits zero.
+ */
+ _mesa_reference_texobj(&texUnit->CurrentTex[targetIndex], newTexObj);
+ ASSERT(texUnit->CurrentTex[targetIndex]);
+
+ /* Pass BindTexture call to device driver */
+ if (ctx->Driver.BindTexture)
+ (*ctx->Driver.BindTexture)( ctx, target, newTexObj );
+}
+
+
+/**
+ * Set texture priorities.
+ *
+ * \param n number of textures.
+ * \param texName texture names.
+ * \param priorities corresponding texture priorities.
+ *
+ * \sa glPrioritizeTextures().
+ *
+ * Looks up each texture in the hash, clamps the corresponding priority between
+ * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
+ */
+void GLAPIENTRY
+_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName,
+ const GLclampf *priorities )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLint i;
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (n < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" );
+ return;
+ }
+
+ if (!priorities)
+ return;
+
+ for (i = 0; i < n; i++) {
+ if (texName[i] > 0) {
+ struct gl_texture_object *t = _mesa_lookup_texture(ctx, texName[i]);
+ if (t) {
+ t->Priority = CLAMP( priorities[i], 0.0F, 1.0F );
+ }
+ }
+ }
+
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+/**
+ * See if textures are loaded in texture memory.
+ *
+ * \param n number of textures to query.
+ * \param texName array with the texture names.
+ * \param residences array which will hold the residence status.
+ *
+ * \return GL_TRUE if all textures are resident and \p residences is left unchanged,
+ *
+ * \sa glAreTexturesResident().
+ *
+ * Looks up each texture in the hash and calls
+ * dd_function_table::IsTextureResident.
+ */
+GLboolean GLAPIENTRY
+_mesa_AreTexturesResident(GLsizei n, const GLuint *texName,
+ GLboolean *residences)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLboolean allResident = GL_TRUE;
+ GLint i, j;
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (n < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident(n)");
+ return GL_FALSE;
+ }
+
+ if (!texName || !residences)
+ return GL_FALSE;
+
+ for (i = 0; i < n; i++) {
+ struct gl_texture_object *t;
+ if (texName[i] == 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident");
+ return GL_FALSE;
+ }
+ t = _mesa_lookup_texture(ctx, texName[i]);
+ if (!t) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident");
+ return GL_FALSE;
+ }
+ if (!ctx->Driver.IsTextureResident ||
+ ctx->Driver.IsTextureResident(ctx, t)) {
+ /* The texture is resident */
+ if (!allResident)
+ residences[i] = GL_TRUE;
+ }
+ else {
+ /* The texture is not resident */
+ if (allResident) {
+ allResident = GL_FALSE;
+ for (j = 0; j < i; j++)
+ residences[j] = GL_TRUE;
+ }
+ residences[i] = GL_FALSE;
+ }
+ }
+
+ return allResident;
+}
+
+
+/**
+ * See if a name corresponds to a texture.
+ *
+ * \param texture texture name.
+ *
+ * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
+ * otherwise.
+ *
+ * \sa glIsTexture().
+ *
+ * Calls _mesa_HashLookup().
+ */
+GLboolean GLAPIENTRY
+_mesa_IsTexture( GLuint texture )
+{
+ struct gl_texture_object *t;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+
+ if (!texture)
+ return GL_FALSE;
+
+ t = _mesa_lookup_texture(ctx, texture);
+
+ /* IsTexture is true only after object has been bound once. */
+ return t && t->Target;
+}
+
+
+/**
+ * Simplest implementation of texture locking: grab the shared tex
+ * mutex. Examine the shared context state timestamp and if there has
+ * been a change, set the appropriate bits in ctx->NewState.
+ *
+ * This is used to deal with synchronizing things when a texture object
+ * is used/modified by different contexts (or threads) which are sharing
+ * the texture.
+ *
+ * See also _mesa_lock/unlock_texture() in teximage.h
+ */
+void
+_mesa_lock_context_textures( struct gl_context *ctx )
+{
+ _glthread_LOCK_MUTEX(ctx->Shared->TexMutex);
+
+ if (ctx->Shared->TextureStateStamp != ctx->TextureStateTimestamp) {
+ ctx->NewState |= _NEW_TEXTURE;
+ ctx->TextureStateTimestamp = ctx->Shared->TextureStateStamp;
+ }
+}
+
+
+void
+_mesa_unlock_context_textures( struct gl_context *ctx )
+{
+ assert(ctx->Shared->TextureStateStamp == ctx->TextureStateTimestamp);
+ _glthread_UNLOCK_MUTEX(ctx->Shared->TexMutex);
+}
+
+/*@}*/
diff --git a/mesalib/src/mesa/main/texstate.c b/mesalib/src/mesa/main/texstate.c index 41d531f59..40282eabf 100644 --- a/mesalib/src/mesa/main/texstate.c +++ b/mesalib/src/mesa/main/texstate.c @@ -1,841 +1,841 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/** - * \file texstate.c - * - * Texture state handling. - */ - -#include "glheader.h" -#include "mfeatures.h" -#include "colormac.h" -#include "colortab.h" -#include "context.h" -#include "enums.h" -#include "macros.h" -#include "texobj.h" -#include "teximage.h" -#include "texstate.h" -#include "mtypes.h" - - - -/** - * Default texture combine environment state. This is used to initialize - * a context's texture units and as the basis for converting "classic" - * texture environmnets to ARB_texture_env_combine style values. - */ -static const struct gl_tex_env_combine_state default_combine_state = { - GL_MODULATE, GL_MODULATE, - { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT }, - { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT }, - { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA, GL_SRC_ALPHA }, - { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA }, - 0, 0, - 2, 2 -}; - - - -/** - * Used by glXCopyContext to copy texture state from one context to another. - */ -void -_mesa_copy_texture_state( const struct gl_context *src, struct gl_context *dst ) -{ - GLuint u, tex; - - ASSERT(src); - ASSERT(dst); - - dst->Texture.CurrentUnit = src->Texture.CurrentUnit; - dst->Texture._GenFlags = src->Texture._GenFlags; - dst->Texture._TexGenEnabled = src->Texture._TexGenEnabled; - dst->Texture._TexMatEnabled = src->Texture._TexMatEnabled; - dst->Texture.SharedPalette = src->Texture.SharedPalette; - - /* per-unit state */ - for (u = 0; u < src->Const.MaxCombinedTextureImageUnits; u++) { - dst->Texture.Unit[u].Enabled = src->Texture.Unit[u].Enabled; - dst->Texture.Unit[u].EnvMode = src->Texture.Unit[u].EnvMode; - COPY_4V(dst->Texture.Unit[u].EnvColor, src->Texture.Unit[u].EnvColor); - dst->Texture.Unit[u].TexGenEnabled = src->Texture.Unit[u].TexGenEnabled; - dst->Texture.Unit[u].GenS = src->Texture.Unit[u].GenS; - dst->Texture.Unit[u].GenT = src->Texture.Unit[u].GenT; - dst->Texture.Unit[u].GenR = src->Texture.Unit[u].GenR; - dst->Texture.Unit[u].GenQ = src->Texture.Unit[u].GenQ; - dst->Texture.Unit[u].LodBias = src->Texture.Unit[u].LodBias; - - /* GL_EXT_texture_env_combine */ - dst->Texture.Unit[u].Combine = src->Texture.Unit[u].Combine; - - /* GL_ATI_envmap_bumpmap - need this? */ - dst->Texture.Unit[u].BumpTarget = src->Texture.Unit[u].BumpTarget; - COPY_4V(dst->Texture.Unit[u].RotMatrix, src->Texture.Unit[u].RotMatrix); - - /* - * XXX strictly speaking, we should compare texture names/ids and - * bind textures in the dest context according to id. For now, only - * copy bindings if the contexts share the same pool of textures to - * avoid refcounting bugs. - */ - if (dst->Shared == src->Shared) { - /* copy texture object bindings, not contents of texture objects */ - _mesa_lock_context_textures(dst); - - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - _mesa_reference_texobj(&dst->Texture.Unit[u].CurrentTex[tex], - src->Texture.Unit[u].CurrentTex[tex]); - } - _mesa_unlock_context_textures(dst); - } - } -} - - -/* - * For debugging - */ -void -_mesa_print_texunit_state( struct gl_context *ctx, GLuint unit ) -{ - const struct gl_texture_unit *texUnit = ctx->Texture.Unit + unit; - printf("Texture Unit %d\n", unit); - printf(" GL_TEXTURE_ENV_MODE = %s\n", _mesa_lookup_enum_by_nr(texUnit->EnvMode)); - printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeRGB)); - printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeA)); - printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[0])); - printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[1])); - printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[2])); - printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[0])); - printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[1])); - printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[2])); - printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[0])); - printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[1])); - printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[2])); - printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[0])); - printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[1])); - printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[2])); - printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftRGB); - printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftA); - printf(" GL_TEXTURE_ENV_COLOR = (%f, %f, %f, %f)\n", texUnit->EnvColor[0], texUnit->EnvColor[1], texUnit->EnvColor[2], texUnit->EnvColor[3]); -} - - - -/**********************************************************************/ -/* Texture Environment */ -/**********************************************************************/ - -/** - * Convert "classic" texture environment to ARB_texture_env_combine style - * environments. - * - * \param state texture_env_combine state vector to be filled-in. - * \param mode Classic texture environment mode (i.e., \c GL_REPLACE, - * \c GL_BLEND, \c GL_DECAL, etc.). - * \param texBaseFormat Base format of the texture associated with the - * texture unit. - */ -static void -calculate_derived_texenv( struct gl_tex_env_combine_state *state, - GLenum mode, GLenum texBaseFormat ) -{ - GLenum mode_rgb; - GLenum mode_a; - - *state = default_combine_state; - - switch (texBaseFormat) { - case GL_ALPHA: - state->SourceRGB[0] = GL_PREVIOUS; - break; - - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - case GL_RGBA: - break; - - case GL_LUMINANCE: - case GL_RED: - case GL_RG: - case GL_RGB: - case GL_YCBCR_MESA: - case GL_DUDV_ATI: - state->SourceA[0] = GL_PREVIOUS; - break; - - default: - _mesa_problem(NULL, - "Invalid texBaseFormat 0x%x in calculate_derived_texenv", - texBaseFormat); - return; - } - - if (mode == GL_REPLACE_EXT) - mode = GL_REPLACE; - - switch (mode) { - case GL_REPLACE: - case GL_MODULATE: - mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : mode; - mode_a = mode; - break; - - case GL_DECAL: - mode_rgb = GL_INTERPOLATE; - mode_a = GL_REPLACE; - - state->SourceA[0] = GL_PREVIOUS; - - /* Having alpha / luminance / intensity textures replace using the - * incoming fragment color matches the definition in NV_texture_shader. - * The 1.5 spec simply marks these as "undefined". - */ - switch (texBaseFormat) { - case GL_ALPHA: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - state->SourceRGB[0] = GL_PREVIOUS; - break; - case GL_RED: - case GL_RG: - case GL_RGB: - case GL_YCBCR_MESA: - case GL_DUDV_ATI: - mode_rgb = GL_REPLACE; - break; - case GL_RGBA: - state->SourceRGB[2] = GL_TEXTURE; - break; - } - break; - - case GL_BLEND: - mode_rgb = GL_INTERPOLATE; - mode_a = GL_MODULATE; - - switch (texBaseFormat) { - case GL_ALPHA: - mode_rgb = GL_REPLACE; - break; - case GL_INTENSITY: - mode_a = GL_INTERPOLATE; - state->SourceA[0] = GL_CONSTANT; - state->OperandA[2] = GL_SRC_ALPHA; - /* FALLTHROUGH */ - case GL_LUMINANCE: - case GL_RED: - case GL_RG: - case GL_RGB: - case GL_LUMINANCE_ALPHA: - case GL_RGBA: - case GL_YCBCR_MESA: - case GL_DUDV_ATI: - state->SourceRGB[2] = GL_TEXTURE; - state->SourceA[2] = GL_TEXTURE; - state->SourceRGB[0] = GL_CONSTANT; - state->OperandRGB[2] = GL_SRC_COLOR; - break; - } - break; - - case GL_ADD: - mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : GL_ADD; - mode_a = (texBaseFormat == GL_INTENSITY) ? GL_ADD : GL_MODULATE; - break; - - default: - _mesa_problem(NULL, - "Invalid texture env mode 0x%x in calculate_derived_texenv", - mode); - return; - } - - state->ModeRGB = (state->SourceRGB[0] != GL_PREVIOUS) - ? mode_rgb : GL_REPLACE; - state->ModeA = (state->SourceA[0] != GL_PREVIOUS) - ? mode_a : GL_REPLACE; -} - - - - -/* GL_ARB_multitexture */ -void GLAPIENTRY -_mesa_ActiveTextureARB(GLenum texture) -{ - const GLuint texUnit = texture - GL_TEXTURE0; - GLuint k; - GET_CURRENT_CONTEXT(ctx); - - /* See OpenGL spec for glActiveTexture: */ - k = MAX2(ctx->Const.MaxCombinedTextureImageUnits, - ctx->Const.MaxTextureCoordUnits); - - ASSERT(k <= Elements(ctx->Texture.Unit)); - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glActiveTexture %s\n", - _mesa_lookup_enum_by_nr(texture)); - - if (texUnit >= k) { - _mesa_error(ctx, GL_INVALID_ENUM, "glActiveTexture(texture=%s)", - _mesa_lookup_enum_by_nr(texture)); - return; - } - - if (ctx->Texture.CurrentUnit == texUnit) - return; - - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - - ctx->Texture.CurrentUnit = texUnit; - if (ctx->Transform.MatrixMode == GL_TEXTURE) { - /* update current stack pointer */ - ctx->CurrentStack = &ctx->TextureMatrixStack[texUnit]; - } -} - - -/* GL_ARB_multitexture */ -void GLAPIENTRY -_mesa_ClientActiveTextureARB(GLenum texture) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint texUnit = texture - GL_TEXTURE0; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glClientActiveTexture %s\n", - _mesa_lookup_enum_by_nr(texture)); - - if (texUnit >= ctx->Const.MaxTextureCoordUnits) { - _mesa_error(ctx, GL_INVALID_ENUM, "glClientActiveTexture(texture)"); - return; - } - - if (ctx->Array.ActiveTexture == texUnit) - return; - - FLUSH_VERTICES(ctx, _NEW_ARRAY); - ctx->Array.ActiveTexture = texUnit; -} - - - -/**********************************************************************/ -/***** State management *****/ -/**********************************************************************/ - - -/** - * \note This routine refers to derived texture attribute values to - * compute the ENABLE_TEXMAT flags, but is only called on - * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT - * flags are updated by _mesa_update_textures(), below. - * - * \param ctx GL context. - */ -static void -update_texture_matrices( struct gl_context *ctx ) -{ - GLuint u; - - ctx->Texture._TexMatEnabled = 0x0; - - for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { - ASSERT(u < Elements(ctx->TextureMatrixStack)); - if (_math_matrix_is_dirty(ctx->TextureMatrixStack[u].Top)) { - _math_matrix_analyse( ctx->TextureMatrixStack[u].Top ); - - if (ctx->Texture.Unit[u]._ReallyEnabled && - ctx->TextureMatrixStack[u].Top->type != MATRIX_IDENTITY) - ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(u); - } - } -} - - -/** - * Examine texture unit's combine/env state to update derived state. - */ -static void -update_tex_combine(struct gl_context *ctx, struct gl_texture_unit *texUnit) -{ - struct gl_tex_env_combine_state *combine; - - /* Set the texUnit->_CurrentCombine field to point to the user's combiner - * state, or the combiner state which is derived from traditional texenv - * mode. - */ - if (texUnit->EnvMode == GL_COMBINE || - texUnit->EnvMode == GL_COMBINE4_NV) { - texUnit->_CurrentCombine = & texUnit->Combine; - } - else { - const struct gl_texture_object *texObj = texUnit->_Current; - GLenum format = texObj->Image[0][texObj->BaseLevel]->_BaseFormat; - if (format == GL_COLOR_INDEX) { - format = GL_RGBA; /* a bit of a hack */ - } - else if (format == GL_DEPTH_COMPONENT || - format == GL_DEPTH_STENCIL_EXT) { - format = texObj->DepthMode; - } - calculate_derived_texenv(&texUnit->_EnvMode, texUnit->EnvMode, format); - texUnit->_CurrentCombine = & texUnit->_EnvMode; - } - - combine = texUnit->_CurrentCombine; - - /* Determine number of source RGB terms in the combiner function */ - switch (combine->ModeRGB) { - case GL_REPLACE: - combine->_NumArgsRGB = 1; - break; - case GL_ADD: - case GL_ADD_SIGNED: - if (texUnit->EnvMode == GL_COMBINE4_NV) - combine->_NumArgsRGB = 4; - else - combine->_NumArgsRGB = 2; - break; - case GL_MODULATE: - case GL_SUBTRACT: - case GL_DOT3_RGB: - case GL_DOT3_RGBA: - case GL_DOT3_RGB_EXT: - case GL_DOT3_RGBA_EXT: - combine->_NumArgsRGB = 2; - break; - case GL_INTERPOLATE: - case GL_MODULATE_ADD_ATI: - case GL_MODULATE_SIGNED_ADD_ATI: - case GL_MODULATE_SUBTRACT_ATI: - combine->_NumArgsRGB = 3; - break; - case GL_BUMP_ENVMAP_ATI: - /* no real arguments for this case */ - combine->_NumArgsRGB = 0; - break; - default: - combine->_NumArgsRGB = 0; - _mesa_problem(ctx, "invalid RGB combine mode in update_texture_state"); - return; - } - - /* Determine number of source Alpha terms in the combiner function */ - switch (combine->ModeA) { - case GL_REPLACE: - combine->_NumArgsA = 1; - break; - case GL_ADD: - case GL_ADD_SIGNED: - if (texUnit->EnvMode == GL_COMBINE4_NV) - combine->_NumArgsA = 4; - else - combine->_NumArgsA = 2; - break; - case GL_MODULATE: - case GL_SUBTRACT: - combine->_NumArgsA = 2; - break; - case GL_INTERPOLATE: - case GL_MODULATE_ADD_ATI: - case GL_MODULATE_SIGNED_ADD_ATI: - case GL_MODULATE_SUBTRACT_ATI: - combine->_NumArgsA = 3; - break; - default: - combine->_NumArgsA = 0; - _mesa_problem(ctx, "invalid Alpha combine mode in update_texture_state"); - break; - } -} - - -/** - * \note This routine refers to derived texture matrix values to - * compute the ENABLE_TEXMAT flags, but is only called on - * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT - * flags are updated by _mesa_update_texture_matrices, above. - * - * \param ctx GL context. - */ -static void -update_texture_state( struct gl_context *ctx ) -{ - GLuint unit; - struct gl_fragment_program *fprog = NULL; - struct gl_vertex_program *vprog = NULL; - GLbitfield enabledFragUnits = 0x0; - - if (ctx->Shader.CurrentVertexProgram && - ctx->Shader.CurrentVertexProgram->LinkStatus) { - vprog = ctx->Shader.CurrentVertexProgram->VertexProgram; - } else if (ctx->VertexProgram._Enabled) { - /* XXX enable this if/when non-shader vertex programs get - * texture fetches: - vprog = ctx->VertexProgram.Current; - */ - } - - if (ctx->Shader.CurrentFragmentProgram && - ctx->Shader.CurrentFragmentProgram->LinkStatus) { - fprog = ctx->Shader.CurrentFragmentProgram->FragmentProgram; - } - else if (ctx->FragmentProgram._Enabled) { - fprog = ctx->FragmentProgram.Current; - } - - /* FINISHME: Geometry shader texture accesses should also be considered - * FINISHME: here. - */ - - /* TODO: only set this if there are actual changes */ - ctx->NewState |= _NEW_TEXTURE; - - ctx->Texture._EnabledUnits = 0x0; - ctx->Texture._GenFlags = 0x0; - ctx->Texture._TexMatEnabled = 0x0; - ctx->Texture._TexGenEnabled = 0x0; - - /* - * Update texture unit state. - */ - for (unit = 0; unit < ctx->Const.MaxCombinedTextureImageUnits; unit++) { - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLbitfield enabledVertTargets = 0x0; - GLbitfield enabledFragTargets = 0x0; - GLbitfield enabledTargets = 0x0; - GLuint texIndex; - - /* Get the bitmask of texture target enables. - * enableBits will be a mask of the TEXTURE_*_BIT flags indicating - * which texture targets are enabled (fixed function) or referenced - * by a fragment program/program. When multiple flags are set, we'll - * settle on the one with highest priority (see below). - */ - if (vprog) { - enabledVertTargets |= vprog->Base.TexturesUsed[unit]; - } - - if (fprog) { - enabledFragTargets |= fprog->Base.TexturesUsed[unit]; - } - else { - /* fixed-function fragment program */ - enabledFragTargets |= texUnit->Enabled; - } - - enabledTargets = enabledVertTargets | enabledFragTargets; - - texUnit->_ReallyEnabled = 0x0; - - if (enabledTargets == 0x0) { - /* neither vertex nor fragment processing uses this unit */ - continue; - } - - /* Look for the highest priority texture target that's enabled (or used - * by the vert/frag shaders) and "complete". That's the one we'll use - * for texturing. If we're using vert/frag program we're guaranteed - * that bitcount(enabledBits) <= 1. - * Note that the TEXTURE_x_INDEX values are in high to low priority. - */ - for (texIndex = 0; texIndex < NUM_TEXTURE_TARGETS; texIndex++) { - if (enabledTargets & (1 << texIndex)) { - struct gl_texture_object *texObj = texUnit->CurrentTex[texIndex]; - if (!texObj->_Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->_Complete) { - texUnit->_ReallyEnabled = 1 << texIndex; - _mesa_reference_texobj(&texUnit->_Current, texObj); - break; - } - } - } - - if (!texUnit->_ReallyEnabled) { - if (fprog) { - /* If we get here it means the shader is expecting a texture - * object, but there isn't one (or it's incomplete). Use the - * fallback texture. - */ - struct gl_texture_object *texObj = _mesa_get_fallback_texture(ctx); - texUnit->_ReallyEnabled = 1 << TEXTURE_2D_INDEX; - _mesa_reference_texobj(&texUnit->_Current, texObj); - } - else { - /* fixed-function: texture unit is really disabled */ - continue; - } - } - - /* if we get here, we know this texture unit is enabled */ - - ctx->Texture._EnabledUnits |= (1 << unit); - - if (enabledFragTargets) - enabledFragUnits |= (1 << unit); - - update_tex_combine(ctx, texUnit); - } - - - /* Determine which texture coordinate sets are actually needed */ - if (fprog) { - const GLuint coordMask = (1 << MAX_TEXTURE_COORD_UNITS) - 1; - ctx->Texture._EnabledCoordUnits - = (fprog->Base.InputsRead >> FRAG_ATTRIB_TEX0) & coordMask; - } - else { - ctx->Texture._EnabledCoordUnits = enabledFragUnits; - } - - /* Setup texgen for those texture coordinate sets that are in use */ - for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) { - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - - texUnit->_GenFlags = 0x0; - - if (!(ctx->Texture._EnabledCoordUnits & (1 << unit))) - continue; - - if (texUnit->TexGenEnabled) { - if (texUnit->TexGenEnabled & S_BIT) { - texUnit->_GenFlags |= texUnit->GenS._ModeBit; - } - if (texUnit->TexGenEnabled & T_BIT) { - texUnit->_GenFlags |= texUnit->GenT._ModeBit; - } - if (texUnit->TexGenEnabled & R_BIT) { - texUnit->_GenFlags |= texUnit->GenR._ModeBit; - } - if (texUnit->TexGenEnabled & Q_BIT) { - texUnit->_GenFlags |= texUnit->GenQ._ModeBit; - } - - ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit); - ctx->Texture._GenFlags |= texUnit->_GenFlags; - } - - ASSERT(unit < Elements(ctx->TextureMatrixStack)); - if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY) - ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit); - } -} - - -/** - * Update texture-related derived state. - */ -void -_mesa_update_texture( struct gl_context *ctx, GLuint new_state ) -{ - if (new_state & _NEW_TEXTURE_MATRIX) - update_texture_matrices( ctx ); - - if (new_state & (_NEW_TEXTURE | _NEW_PROGRAM)) - update_texture_state( ctx ); -} - - -/**********************************************************************/ -/***** Initialization *****/ -/**********************************************************************/ - -/** - * Allocate the proxy textures for the given context. - * - * \param ctx the context to allocate proxies for. - * - * \return GL_TRUE on success, or GL_FALSE on failure - * - * If run out of memory part way through the allocations, clean up and return - * GL_FALSE. - */ -static GLboolean -alloc_proxy_textures( struct gl_context *ctx ) -{ - static const GLenum targets[] = { - GL_TEXTURE_1D, - GL_TEXTURE_2D, - GL_TEXTURE_3D, - GL_TEXTURE_CUBE_MAP_ARB, - GL_TEXTURE_RECTANGLE_NV, - GL_TEXTURE_1D_ARRAY_EXT, - GL_TEXTURE_2D_ARRAY_EXT - }; - GLint tgt; - - ASSERT(Elements(targets) == NUM_TEXTURE_TARGETS); - - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - if (!(ctx->Texture.ProxyTex[tgt] - = ctx->Driver.NewTextureObject(ctx, 0, targets[tgt]))) { - /* out of memory, free what we did allocate */ - while (--tgt >= 0) { - ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]); - } - return GL_FALSE; - } - } - - assert(ctx->Texture.ProxyTex[0]->RefCount == 1); /* sanity check */ - return GL_TRUE; -} - - -/** - * Initialize a texture unit. - * - * \param ctx GL context. - * \param unit texture unit number to be initialized. - */ -static void -init_texture_unit( struct gl_context *ctx, GLuint unit ) -{ - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint tex; - - texUnit->EnvMode = GL_MODULATE; - ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 ); - - texUnit->Combine = default_combine_state; - texUnit->_EnvMode = default_combine_state; - texUnit->_CurrentCombine = & texUnit->_EnvMode; - texUnit->BumpTarget = GL_TEXTURE0; - - texUnit->TexGenEnabled = 0x0; - texUnit->GenS.Mode = GL_EYE_LINEAR; - texUnit->GenT.Mode = GL_EYE_LINEAR; - texUnit->GenR.Mode = GL_EYE_LINEAR; - texUnit->GenQ.Mode = GL_EYE_LINEAR; - texUnit->GenS._ModeBit = TEXGEN_EYE_LINEAR; - texUnit->GenT._ModeBit = TEXGEN_EYE_LINEAR; - texUnit->GenR._ModeBit = TEXGEN_EYE_LINEAR; - texUnit->GenQ._ModeBit = TEXGEN_EYE_LINEAR; - - /* Yes, these plane coefficients are correct! */ - ASSIGN_4V( texUnit->GenS.ObjectPlane, 1.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenT.ObjectPlane, 0.0, 1.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenR.ObjectPlane, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenQ.ObjectPlane, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenS.EyePlane, 1.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenT.EyePlane, 0.0, 1.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenR.EyePlane, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->GenQ.EyePlane, 0.0, 0.0, 0.0, 0.0 ); - - /* no mention of this in spec, but maybe id matrix expected? */ - ASSIGN_4V( texUnit->RotMatrix, 1.0, 0.0, 0.0, 1.0 ); - - /* initialize current texture object ptrs to the shared default objects */ - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - _mesa_reference_texobj(&texUnit->CurrentTex[tex], - ctx->Shared->DefaultTex[tex]); - } -} - - -/** - * Initialize texture state for the given context. - */ -GLboolean -_mesa_init_texture(struct gl_context *ctx) -{ - GLuint u; - - /* Texture group */ - ctx->Texture.CurrentUnit = 0; /* multitexture */ - ctx->Texture._EnabledUnits = 0x0; - ctx->Texture.SharedPalette = GL_FALSE; - _mesa_init_colortable(&ctx->Texture.Palette); - - for (u = 0; u < Elements(ctx->Texture.Unit); u++) - init_texture_unit(ctx, u); - - /* After we're done initializing the context's texture state the default - * texture objects' refcounts should be at least - * MAX_COMBINED_TEXTURE_IMAGE_UNITS + 1. - */ - assert(ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]->RefCount - >= MAX_COMBINED_TEXTURE_IMAGE_UNITS + 1); - - /* Allocate proxy textures */ - if (!alloc_proxy_textures( ctx )) - return GL_FALSE; - - return GL_TRUE; -} - - -/** - * Free dynamically-allocted texture data attached to the given context. - */ -void -_mesa_free_texture_data(struct gl_context *ctx) -{ - GLuint u, tgt; - - /* unreference current textures */ - for (u = 0; u < Elements(ctx->Texture.Unit); u++) { - /* The _Current texture could account for another reference */ - _mesa_reference_texobj(&ctx->Texture.Unit[u]._Current, NULL); - - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - _mesa_reference_texobj(&ctx->Texture.Unit[u].CurrentTex[tgt], NULL); - } - } - - /* Free proxy texture objects */ - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) - ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]); -} - - -/** - * Update the default texture objects in the given context to reference those - * specified in the shared state and release those referencing the old - * shared state. - */ -void -_mesa_update_default_objects_texture(struct gl_context *ctx) -{ - GLuint u, tex; - - for (u = 0; u < Elements(ctx->Texture.Unit); u++) { - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[u]; - for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) { - _mesa_reference_texobj(&texUnit->CurrentTex[tex], - ctx->Shared->DefaultTex[tex]); - } - } -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.5
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file texstate.c
+ *
+ * Texture state handling.
+ */
+
+#include "glheader.h"
+#include "mfeatures.h"
+#include "colormac.h"
+#include "colortab.h"
+#include "context.h"
+#include "enums.h"
+#include "macros.h"
+#include "texobj.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "mtypes.h"
+
+
+
+/**
+ * Default texture combine environment state. This is used to initialize
+ * a context's texture units and as the basis for converting "classic"
+ * texture environmnets to ARB_texture_env_combine style values.
+ */
+static const struct gl_tex_env_combine_state default_combine_state = {
+ GL_MODULATE, GL_MODULATE,
+ { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT },
+ { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT, GL_CONSTANT },
+ { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA, GL_SRC_ALPHA },
+ { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA },
+ 0, 0,
+ 2, 2
+};
+
+
+
+/**
+ * Used by glXCopyContext to copy texture state from one context to another.
+ */
+void
+_mesa_copy_texture_state( const struct gl_context *src, struct gl_context *dst )
+{
+ GLuint u, tex;
+
+ ASSERT(src);
+ ASSERT(dst);
+
+ dst->Texture.CurrentUnit = src->Texture.CurrentUnit;
+ dst->Texture._GenFlags = src->Texture._GenFlags;
+ dst->Texture._TexGenEnabled = src->Texture._TexGenEnabled;
+ dst->Texture._TexMatEnabled = src->Texture._TexMatEnabled;
+ dst->Texture.SharedPalette = src->Texture.SharedPalette;
+
+ /* per-unit state */
+ for (u = 0; u < src->Const.MaxCombinedTextureImageUnits; u++) {
+ dst->Texture.Unit[u].Enabled = src->Texture.Unit[u].Enabled;
+ dst->Texture.Unit[u].EnvMode = src->Texture.Unit[u].EnvMode;
+ COPY_4V(dst->Texture.Unit[u].EnvColor, src->Texture.Unit[u].EnvColor);
+ dst->Texture.Unit[u].TexGenEnabled = src->Texture.Unit[u].TexGenEnabled;
+ dst->Texture.Unit[u].GenS = src->Texture.Unit[u].GenS;
+ dst->Texture.Unit[u].GenT = src->Texture.Unit[u].GenT;
+ dst->Texture.Unit[u].GenR = src->Texture.Unit[u].GenR;
+ dst->Texture.Unit[u].GenQ = src->Texture.Unit[u].GenQ;
+ dst->Texture.Unit[u].LodBias = src->Texture.Unit[u].LodBias;
+
+ /* GL_EXT_texture_env_combine */
+ dst->Texture.Unit[u].Combine = src->Texture.Unit[u].Combine;
+
+ /* GL_ATI_envmap_bumpmap - need this? */
+ dst->Texture.Unit[u].BumpTarget = src->Texture.Unit[u].BumpTarget;
+ COPY_4V(dst->Texture.Unit[u].RotMatrix, src->Texture.Unit[u].RotMatrix);
+
+ /*
+ * XXX strictly speaking, we should compare texture names/ids and
+ * bind textures in the dest context according to id. For now, only
+ * copy bindings if the contexts share the same pool of textures to
+ * avoid refcounting bugs.
+ */
+ if (dst->Shared == src->Shared) {
+ /* copy texture object bindings, not contents of texture objects */
+ _mesa_lock_context_textures(dst);
+
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ _mesa_reference_texobj(&dst->Texture.Unit[u].CurrentTex[tex],
+ src->Texture.Unit[u].CurrentTex[tex]);
+ }
+ _mesa_unlock_context_textures(dst);
+ }
+ }
+}
+
+
+/*
+ * For debugging
+ */
+void
+_mesa_print_texunit_state( struct gl_context *ctx, GLuint unit )
+{
+ const struct gl_texture_unit *texUnit = ctx->Texture.Unit + unit;
+ printf("Texture Unit %d\n", unit);
+ printf(" GL_TEXTURE_ENV_MODE = %s\n", _mesa_lookup_enum_by_nr(texUnit->EnvMode));
+ printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeRGB));
+ printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeA));
+ printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[0]));
+ printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[1]));
+ printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[2]));
+ printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[0]));
+ printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[1]));
+ printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[2]));
+ printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[0]));
+ printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[1]));
+ printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[2]));
+ printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[0]));
+ printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[1]));
+ printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[2]));
+ printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftRGB);
+ printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftA);
+ printf(" GL_TEXTURE_ENV_COLOR = (%f, %f, %f, %f)\n", texUnit->EnvColor[0], texUnit->EnvColor[1], texUnit->EnvColor[2], texUnit->EnvColor[3]);
+}
+
+
+
+/**********************************************************************/
+/* Texture Environment */
+/**********************************************************************/
+
+/**
+ * Convert "classic" texture environment to ARB_texture_env_combine style
+ * environments.
+ *
+ * \param state texture_env_combine state vector to be filled-in.
+ * \param mode Classic texture environment mode (i.e., \c GL_REPLACE,
+ * \c GL_BLEND, \c GL_DECAL, etc.).
+ * \param texBaseFormat Base format of the texture associated with the
+ * texture unit.
+ */
+static void
+calculate_derived_texenv( struct gl_tex_env_combine_state *state,
+ GLenum mode, GLenum texBaseFormat )
+{
+ GLenum mode_rgb;
+ GLenum mode_a;
+
+ *state = default_combine_state;
+
+ switch (texBaseFormat) {
+ case GL_ALPHA:
+ state->SourceRGB[0] = GL_PREVIOUS;
+ break;
+
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ case GL_RGBA:
+ break;
+
+ case GL_LUMINANCE:
+ case GL_RED:
+ case GL_RG:
+ case GL_RGB:
+ case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
+ state->SourceA[0] = GL_PREVIOUS;
+ break;
+
+ default:
+ _mesa_problem(NULL,
+ "Invalid texBaseFormat 0x%x in calculate_derived_texenv",
+ texBaseFormat);
+ return;
+ }
+
+ if (mode == GL_REPLACE_EXT)
+ mode = GL_REPLACE;
+
+ switch (mode) {
+ case GL_REPLACE:
+ case GL_MODULATE:
+ mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : mode;
+ mode_a = mode;
+ break;
+
+ case GL_DECAL:
+ mode_rgb = GL_INTERPOLATE;
+ mode_a = GL_REPLACE;
+
+ state->SourceA[0] = GL_PREVIOUS;
+
+ /* Having alpha / luminance / intensity textures replace using the
+ * incoming fragment color matches the definition in NV_texture_shader.
+ * The 1.5 spec simply marks these as "undefined".
+ */
+ switch (texBaseFormat) {
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ state->SourceRGB[0] = GL_PREVIOUS;
+ break;
+ case GL_RED:
+ case GL_RG:
+ case GL_RGB:
+ case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
+ mode_rgb = GL_REPLACE;
+ break;
+ case GL_RGBA:
+ state->SourceRGB[2] = GL_TEXTURE;
+ break;
+ }
+ break;
+
+ case GL_BLEND:
+ mode_rgb = GL_INTERPOLATE;
+ mode_a = GL_MODULATE;
+
+ switch (texBaseFormat) {
+ case GL_ALPHA:
+ mode_rgb = GL_REPLACE;
+ break;
+ case GL_INTENSITY:
+ mode_a = GL_INTERPOLATE;
+ state->SourceA[0] = GL_CONSTANT;
+ state->OperandA[2] = GL_SRC_ALPHA;
+ /* FALLTHROUGH */
+ case GL_LUMINANCE:
+ case GL_RED:
+ case GL_RG:
+ case GL_RGB:
+ case GL_LUMINANCE_ALPHA:
+ case GL_RGBA:
+ case GL_YCBCR_MESA:
+ case GL_DUDV_ATI:
+ state->SourceRGB[2] = GL_TEXTURE;
+ state->SourceA[2] = GL_TEXTURE;
+ state->SourceRGB[0] = GL_CONSTANT;
+ state->OperandRGB[2] = GL_SRC_COLOR;
+ break;
+ }
+ break;
+
+ case GL_ADD:
+ mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : GL_ADD;
+ mode_a = (texBaseFormat == GL_INTENSITY) ? GL_ADD : GL_MODULATE;
+ break;
+
+ default:
+ _mesa_problem(NULL,
+ "Invalid texture env mode 0x%x in calculate_derived_texenv",
+ mode);
+ return;
+ }
+
+ state->ModeRGB = (state->SourceRGB[0] != GL_PREVIOUS)
+ ? mode_rgb : GL_REPLACE;
+ state->ModeA = (state->SourceA[0] != GL_PREVIOUS)
+ ? mode_a : GL_REPLACE;
+}
+
+
+
+
+/* GL_ARB_multitexture */
+void GLAPIENTRY
+_mesa_ActiveTextureARB(GLenum texture)
+{
+ const GLuint texUnit = texture - GL_TEXTURE0;
+ GLuint k;
+ GET_CURRENT_CONTEXT(ctx);
+
+ /* See OpenGL spec for glActiveTexture: */
+ k = MAX2(ctx->Const.MaxCombinedTextureImageUnits,
+ ctx->Const.MaxTextureCoordUnits);
+
+ ASSERT(k <= Elements(ctx->Texture.Unit));
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glActiveTexture %s\n",
+ _mesa_lookup_enum_by_nr(texture));
+
+ if (texUnit >= k) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glActiveTexture(texture=%s)",
+ _mesa_lookup_enum_by_nr(texture));
+ return;
+ }
+
+ if (ctx->Texture.CurrentUnit == texUnit)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+
+ ctx->Texture.CurrentUnit = texUnit;
+ if (ctx->Transform.MatrixMode == GL_TEXTURE) {
+ /* update current stack pointer */
+ ctx->CurrentStack = &ctx->TextureMatrixStack[texUnit];
+ }
+}
+
+
+/* GL_ARB_multitexture */
+void GLAPIENTRY
+_mesa_ClientActiveTextureARB(GLenum texture)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint texUnit = texture - GL_TEXTURE0;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE))
+ _mesa_debug(ctx, "glClientActiveTexture %s\n",
+ _mesa_lookup_enum_by_nr(texture));
+
+ if (texUnit >= ctx->Const.MaxTextureCoordUnits) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glClientActiveTexture(texture)");
+ return;
+ }
+
+ if (ctx->Array.ActiveTexture == texUnit)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_ARRAY);
+ ctx->Array.ActiveTexture = texUnit;
+}
+
+
+
+/**********************************************************************/
+/***** State management *****/
+/**********************************************************************/
+
+
+/**
+ * \note This routine refers to derived texture attribute values to
+ * compute the ENABLE_TEXMAT flags, but is only called on
+ * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT
+ * flags are updated by _mesa_update_textures(), below.
+ *
+ * \param ctx GL context.
+ */
+static void
+update_texture_matrices( struct gl_context *ctx )
+{
+ GLuint u;
+
+ ctx->Texture._TexMatEnabled = 0x0;
+
+ for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) {
+ ASSERT(u < Elements(ctx->TextureMatrixStack));
+ if (_math_matrix_is_dirty(ctx->TextureMatrixStack[u].Top)) {
+ _math_matrix_analyse( ctx->TextureMatrixStack[u].Top );
+
+ if (ctx->Texture.Unit[u]._ReallyEnabled &&
+ ctx->TextureMatrixStack[u].Top->type != MATRIX_IDENTITY)
+ ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(u);
+ }
+ }
+}
+
+
+/**
+ * Examine texture unit's combine/env state to update derived state.
+ */
+static void
+update_tex_combine(struct gl_context *ctx, struct gl_texture_unit *texUnit)
+{
+ struct gl_tex_env_combine_state *combine;
+
+ /* Set the texUnit->_CurrentCombine field to point to the user's combiner
+ * state, or the combiner state which is derived from traditional texenv
+ * mode.
+ */
+ if (texUnit->EnvMode == GL_COMBINE ||
+ texUnit->EnvMode == GL_COMBINE4_NV) {
+ texUnit->_CurrentCombine = & texUnit->Combine;
+ }
+ else {
+ const struct gl_texture_object *texObj = texUnit->_Current;
+ GLenum format = texObj->Image[0][texObj->BaseLevel]->_BaseFormat;
+ if (format == GL_COLOR_INDEX) {
+ format = GL_RGBA; /* a bit of a hack */
+ }
+ else if (format == GL_DEPTH_COMPONENT ||
+ format == GL_DEPTH_STENCIL_EXT) {
+ format = texObj->DepthMode;
+ }
+ calculate_derived_texenv(&texUnit->_EnvMode, texUnit->EnvMode, format);
+ texUnit->_CurrentCombine = & texUnit->_EnvMode;
+ }
+
+ combine = texUnit->_CurrentCombine;
+
+ /* Determine number of source RGB terms in the combiner function */
+ switch (combine->ModeRGB) {
+ case GL_REPLACE:
+ combine->_NumArgsRGB = 1;
+ break;
+ case GL_ADD:
+ case GL_ADD_SIGNED:
+ if (texUnit->EnvMode == GL_COMBINE4_NV)
+ combine->_NumArgsRGB = 4;
+ else
+ combine->_NumArgsRGB = 2;
+ break;
+ case GL_MODULATE:
+ case GL_SUBTRACT:
+ case GL_DOT3_RGB:
+ case GL_DOT3_RGBA:
+ case GL_DOT3_RGB_EXT:
+ case GL_DOT3_RGBA_EXT:
+ combine->_NumArgsRGB = 2;
+ break;
+ case GL_INTERPOLATE:
+ case GL_MODULATE_ADD_ATI:
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ case GL_MODULATE_SUBTRACT_ATI:
+ combine->_NumArgsRGB = 3;
+ break;
+ case GL_BUMP_ENVMAP_ATI:
+ /* no real arguments for this case */
+ combine->_NumArgsRGB = 0;
+ break;
+ default:
+ combine->_NumArgsRGB = 0;
+ _mesa_problem(ctx, "invalid RGB combine mode in update_texture_state");
+ return;
+ }
+
+ /* Determine number of source Alpha terms in the combiner function */
+ switch (combine->ModeA) {
+ case GL_REPLACE:
+ combine->_NumArgsA = 1;
+ break;
+ case GL_ADD:
+ case GL_ADD_SIGNED:
+ if (texUnit->EnvMode == GL_COMBINE4_NV)
+ combine->_NumArgsA = 4;
+ else
+ combine->_NumArgsA = 2;
+ break;
+ case GL_MODULATE:
+ case GL_SUBTRACT:
+ combine->_NumArgsA = 2;
+ break;
+ case GL_INTERPOLATE:
+ case GL_MODULATE_ADD_ATI:
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ case GL_MODULATE_SUBTRACT_ATI:
+ combine->_NumArgsA = 3;
+ break;
+ default:
+ combine->_NumArgsA = 0;
+ _mesa_problem(ctx, "invalid Alpha combine mode in update_texture_state");
+ break;
+ }
+}
+
+
+/**
+ * \note This routine refers to derived texture matrix values to
+ * compute the ENABLE_TEXMAT flags, but is only called on
+ * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT
+ * flags are updated by _mesa_update_texture_matrices, above.
+ *
+ * \param ctx GL context.
+ */
+static void
+update_texture_state( struct gl_context *ctx )
+{
+ GLuint unit;
+ struct gl_fragment_program *fprog = NULL;
+ struct gl_vertex_program *vprog = NULL;
+ GLbitfield enabledFragUnits = 0x0;
+
+ if (ctx->Shader.CurrentVertexProgram &&
+ ctx->Shader.CurrentVertexProgram->LinkStatus) {
+ vprog = ctx->Shader.CurrentVertexProgram->VertexProgram;
+ } else if (ctx->VertexProgram._Enabled) {
+ /* XXX enable this if/when non-shader vertex programs get
+ * texture fetches:
+ vprog = ctx->VertexProgram.Current;
+ */
+ }
+
+ if (ctx->Shader.CurrentFragmentProgram &&
+ ctx->Shader.CurrentFragmentProgram->LinkStatus) {
+ fprog = ctx->Shader.CurrentFragmentProgram->FragmentProgram;
+ }
+ else if (ctx->FragmentProgram._Enabled) {
+ fprog = ctx->FragmentProgram.Current;
+ }
+
+ /* FINISHME: Geometry shader texture accesses should also be considered
+ * FINISHME: here.
+ */
+
+ /* TODO: only set this if there are actual changes */
+ ctx->NewState |= _NEW_TEXTURE;
+
+ ctx->Texture._EnabledUnits = 0x0;
+ ctx->Texture._GenFlags = 0x0;
+ ctx->Texture._TexMatEnabled = 0x0;
+ ctx->Texture._TexGenEnabled = 0x0;
+
+ /*
+ * Update texture unit state.
+ */
+ for (unit = 0; unit < ctx->Const.MaxCombinedTextureImageUnits; unit++) {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+ GLbitfield enabledVertTargets = 0x0;
+ GLbitfield enabledFragTargets = 0x0;
+ GLbitfield enabledTargets = 0x0;
+ GLuint texIndex;
+
+ /* Get the bitmask of texture target enables.
+ * enableBits will be a mask of the TEXTURE_*_BIT flags indicating
+ * which texture targets are enabled (fixed function) or referenced
+ * by a fragment program/program. When multiple flags are set, we'll
+ * settle on the one with highest priority (see below).
+ */
+ if (vprog) {
+ enabledVertTargets |= vprog->Base.TexturesUsed[unit];
+ }
+
+ if (fprog) {
+ enabledFragTargets |= fprog->Base.TexturesUsed[unit];
+ }
+ else {
+ /* fixed-function fragment program */
+ enabledFragTargets |= texUnit->Enabled;
+ }
+
+ enabledTargets = enabledVertTargets | enabledFragTargets;
+
+ texUnit->_ReallyEnabled = 0x0;
+
+ if (enabledTargets == 0x0) {
+ /* neither vertex nor fragment processing uses this unit */
+ continue;
+ }
+
+ /* Look for the highest priority texture target that's enabled (or used
+ * by the vert/frag shaders) and "complete". That's the one we'll use
+ * for texturing. If we're using vert/frag program we're guaranteed
+ * that bitcount(enabledBits) <= 1.
+ * Note that the TEXTURE_x_INDEX values are in high to low priority.
+ */
+ for (texIndex = 0; texIndex < NUM_TEXTURE_TARGETS; texIndex++) {
+ if (enabledTargets & (1 << texIndex)) {
+ struct gl_texture_object *texObj = texUnit->CurrentTex[texIndex];
+ if (!texObj->_Complete) {
+ _mesa_test_texobj_completeness(ctx, texObj);
+ }
+ if (texObj->_Complete) {
+ texUnit->_ReallyEnabled = 1 << texIndex;
+ _mesa_reference_texobj(&texUnit->_Current, texObj);
+ break;
+ }
+ }
+ }
+
+ if (!texUnit->_ReallyEnabled) {
+ if (fprog) {
+ /* If we get here it means the shader is expecting a texture
+ * object, but there isn't one (or it's incomplete). Use the
+ * fallback texture.
+ */
+ struct gl_texture_object *texObj = _mesa_get_fallback_texture(ctx);
+ texUnit->_ReallyEnabled = 1 << TEXTURE_2D_INDEX;
+ _mesa_reference_texobj(&texUnit->_Current, texObj);
+ }
+ else {
+ /* fixed-function: texture unit is really disabled */
+ continue;
+ }
+ }
+
+ /* if we get here, we know this texture unit is enabled */
+
+ ctx->Texture._EnabledUnits |= (1 << unit);
+
+ if (enabledFragTargets)
+ enabledFragUnits |= (1 << unit);
+
+ update_tex_combine(ctx, texUnit);
+ }
+
+
+ /* Determine which texture coordinate sets are actually needed */
+ if (fprog) {
+ const GLuint coordMask = (1 << MAX_TEXTURE_COORD_UNITS) - 1;
+ ctx->Texture._EnabledCoordUnits
+ = (fprog->Base.InputsRead >> FRAG_ATTRIB_TEX0) & coordMask;
+ }
+ else {
+ ctx->Texture._EnabledCoordUnits = enabledFragUnits;
+ }
+
+ /* Setup texgen for those texture coordinate sets that are in use */
+ for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+
+ texUnit->_GenFlags = 0x0;
+
+ if (!(ctx->Texture._EnabledCoordUnits & (1 << unit)))
+ continue;
+
+ if (texUnit->TexGenEnabled) {
+ if (texUnit->TexGenEnabled & S_BIT) {
+ texUnit->_GenFlags |= texUnit->GenS._ModeBit;
+ }
+ if (texUnit->TexGenEnabled & T_BIT) {
+ texUnit->_GenFlags |= texUnit->GenT._ModeBit;
+ }
+ if (texUnit->TexGenEnabled & R_BIT) {
+ texUnit->_GenFlags |= texUnit->GenR._ModeBit;
+ }
+ if (texUnit->TexGenEnabled & Q_BIT) {
+ texUnit->_GenFlags |= texUnit->GenQ._ModeBit;
+ }
+
+ ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit);
+ ctx->Texture._GenFlags |= texUnit->_GenFlags;
+ }
+
+ ASSERT(unit < Elements(ctx->TextureMatrixStack));
+ if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY)
+ ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit);
+ }
+}
+
+
+/**
+ * Update texture-related derived state.
+ */
+void
+_mesa_update_texture( struct gl_context *ctx, GLuint new_state )
+{
+ if (new_state & _NEW_TEXTURE_MATRIX)
+ update_texture_matrices( ctx );
+
+ if (new_state & (_NEW_TEXTURE | _NEW_PROGRAM))
+ update_texture_state( ctx );
+}
+
+
+/**********************************************************************/
+/***** Initialization *****/
+/**********************************************************************/
+
+/**
+ * Allocate the proxy textures for the given context.
+ *
+ * \param ctx the context to allocate proxies for.
+ *
+ * \return GL_TRUE on success, or GL_FALSE on failure
+ *
+ * If run out of memory part way through the allocations, clean up and return
+ * GL_FALSE.
+ */
+static GLboolean
+alloc_proxy_textures( struct gl_context *ctx )
+{
+ static const GLenum targets[] = {
+ GL_TEXTURE_1D,
+ GL_TEXTURE_2D,
+ GL_TEXTURE_3D,
+ GL_TEXTURE_CUBE_MAP_ARB,
+ GL_TEXTURE_RECTANGLE_NV,
+ GL_TEXTURE_1D_ARRAY_EXT,
+ GL_TEXTURE_2D_ARRAY_EXT
+ };
+ GLint tgt;
+
+ ASSERT(Elements(targets) == NUM_TEXTURE_TARGETS);
+
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+ if (!(ctx->Texture.ProxyTex[tgt]
+ = ctx->Driver.NewTextureObject(ctx, 0, targets[tgt]))) {
+ /* out of memory, free what we did allocate */
+ while (--tgt >= 0) {
+ ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]);
+ }
+ return GL_FALSE;
+ }
+ }
+
+ assert(ctx->Texture.ProxyTex[0]->RefCount == 1); /* sanity check */
+ return GL_TRUE;
+}
+
+
+/**
+ * Initialize a texture unit.
+ *
+ * \param ctx GL context.
+ * \param unit texture unit number to be initialized.
+ */
+static void
+init_texture_unit( struct gl_context *ctx, GLuint unit )
+{
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
+ GLuint tex;
+
+ texUnit->EnvMode = GL_MODULATE;
+ ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 );
+
+ texUnit->Combine = default_combine_state;
+ texUnit->_EnvMode = default_combine_state;
+ texUnit->_CurrentCombine = & texUnit->_EnvMode;
+ texUnit->BumpTarget = GL_TEXTURE0;
+
+ texUnit->TexGenEnabled = 0x0;
+ texUnit->GenS.Mode = GL_EYE_LINEAR;
+ texUnit->GenT.Mode = GL_EYE_LINEAR;
+ texUnit->GenR.Mode = GL_EYE_LINEAR;
+ texUnit->GenQ.Mode = GL_EYE_LINEAR;
+ texUnit->GenS._ModeBit = TEXGEN_EYE_LINEAR;
+ texUnit->GenT._ModeBit = TEXGEN_EYE_LINEAR;
+ texUnit->GenR._ModeBit = TEXGEN_EYE_LINEAR;
+ texUnit->GenQ._ModeBit = TEXGEN_EYE_LINEAR;
+
+ /* Yes, these plane coefficients are correct! */
+ ASSIGN_4V( texUnit->GenS.ObjectPlane, 1.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenT.ObjectPlane, 0.0, 1.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenR.ObjectPlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenQ.ObjectPlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenS.EyePlane, 1.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenT.EyePlane, 0.0, 1.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenR.EyePlane, 0.0, 0.0, 0.0, 0.0 );
+ ASSIGN_4V( texUnit->GenQ.EyePlane, 0.0, 0.0, 0.0, 0.0 );
+
+ /* no mention of this in spec, but maybe id matrix expected? */
+ ASSIGN_4V( texUnit->RotMatrix, 1.0, 0.0, 0.0, 1.0 );
+
+ /* initialize current texture object ptrs to the shared default objects */
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ _mesa_reference_texobj(&texUnit->CurrentTex[tex],
+ ctx->Shared->DefaultTex[tex]);
+ }
+}
+
+
+/**
+ * Initialize texture state for the given context.
+ */
+GLboolean
+_mesa_init_texture(struct gl_context *ctx)
+{
+ GLuint u;
+
+ /* Texture group */
+ ctx->Texture.CurrentUnit = 0; /* multitexture */
+ ctx->Texture._EnabledUnits = 0x0;
+ ctx->Texture.SharedPalette = GL_FALSE;
+ _mesa_init_colortable(&ctx->Texture.Palette);
+
+ for (u = 0; u < Elements(ctx->Texture.Unit); u++)
+ init_texture_unit(ctx, u);
+
+ /* After we're done initializing the context's texture state the default
+ * texture objects' refcounts should be at least
+ * MAX_COMBINED_TEXTURE_IMAGE_UNITS + 1.
+ */
+ assert(ctx->Shared->DefaultTex[TEXTURE_1D_INDEX]->RefCount
+ >= MAX_COMBINED_TEXTURE_IMAGE_UNITS + 1);
+
+ /* Allocate proxy textures */
+ if (!alloc_proxy_textures( ctx ))
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
+
+
+/**
+ * Free dynamically-allocted texture data attached to the given context.
+ */
+void
+_mesa_free_texture_data(struct gl_context *ctx)
+{
+ GLuint u, tgt;
+
+ /* unreference current textures */
+ for (u = 0; u < Elements(ctx->Texture.Unit); u++) {
+ /* The _Current texture could account for another reference */
+ _mesa_reference_texobj(&ctx->Texture.Unit[u]._Current, NULL);
+
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) {
+ _mesa_reference_texobj(&ctx->Texture.Unit[u].CurrentTex[tgt], NULL);
+ }
+ }
+
+ /* Free proxy texture objects */
+ for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++)
+ ctx->Driver.DeleteTexture(ctx, ctx->Texture.ProxyTex[tgt]);
+}
+
+
+/**
+ * Update the default texture objects in the given context to reference those
+ * specified in the shared state and release those referencing the old
+ * shared state.
+ */
+void
+_mesa_update_default_objects_texture(struct gl_context *ctx)
+{
+ GLuint u, tex;
+
+ for (u = 0; u < Elements(ctx->Texture.Unit); u++) {
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[u];
+ for (tex = 0; tex < NUM_TEXTURE_TARGETS; tex++) {
+ _mesa_reference_texobj(&texUnit->CurrentTex[tex],
+ ctx->Shared->DefaultTex[tex]);
+ }
+ }
+}
diff --git a/mesalib/src/mesa/main/texstore.h b/mesalib/src/mesa/main/texstore.h index d56318709..1d0ce7d4a 100644 --- a/mesalib/src/mesa/main/texstore.h +++ b/mesalib/src/mesa/main/texstore.h @@ -1,209 +1,209 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.1 - * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. - * Copyright (c) 2008 VMware, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -/** - * \file texstore.h - * Texture image storage routines. - * - * \author Brian Paul - */ - - -#ifndef TEXSTORE_H -#define TEXSTORE_H - - -#include "mtypes.h" -#include "formats.h" - - -/** - * This macro defines the (many) parameters to the texstore functions. - * \param dims either 1 or 2 or 3 - * \param baseInternalFormat user-specified base internal format - * \param dstFormat destination Mesa texture format - * \param dstAddr destination image address - * \param dstX/Y/Zoffset destination x/y/z offset (ala TexSubImage), in texels - * \param dstRowStride destination image row stride, in bytes - * \param dstImageOffsets offset of each 2D slice within 3D texture, in texels - * \param srcWidth/Height/Depth source image size, in pixels - * \param srcFormat incoming image format - * \param srcType incoming image data type - * \param srcAddr source image address - * \param srcPacking source image packing parameters - */ -#define TEXSTORE_PARAMS \ - struct gl_context *ctx, GLuint dims, \ - GLenum baseInternalFormat, \ - gl_format dstFormat, \ - GLvoid *dstAddr, \ - GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, \ - GLint dstRowStride, const GLuint *dstImageOffsets, \ - GLint srcWidth, GLint srcHeight, GLint srcDepth, \ - GLenum srcFormat, GLenum srcType, \ - const GLvoid *srcAddr, \ - const struct gl_pixelstore_attrib *srcPacking - - -extern GLboolean -_mesa_texstore(TEXSTORE_PARAMS); - - -extern GLchan * -_mesa_make_temp_chan_image(struct gl_context *ctx, GLuint dims, - GLenum logicalBaseFormat, - GLenum textureBaseFormat, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - GLenum srcFormat, GLenum srcType, - const GLvoid *srcAddr, - const struct gl_pixelstore_attrib *srcPacking); - -GLfloat * -_mesa_make_temp_float_image(struct gl_context *ctx, GLuint dims, - GLenum logicalBaseFormat, - GLenum textureBaseFormat, - GLint srcWidth, GLint srcHeight, GLint srcDepth, - GLenum srcFormat, GLenum srcType, - const GLvoid *srcAddr, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps); - -extern void -_mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint border, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint border, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint depth, GLint border, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint width, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_texsubimage2d(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint width, GLint height, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_texsubimage3d(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint width, GLint height, GLint depth, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_compressed_teximage1d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint border, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - -extern void -_mesa_store_compressed_teximage2d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint border, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - -extern void -_mesa_store_compressed_teximage3d(struct gl_context *ctx, GLenum target, GLint level, - GLint internalFormat, - GLint width, GLint height, GLint depth, - GLint border, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -extern void -_mesa_store_compressed_texsubimage1d(struct gl_context *ctx, GLenum target, - GLint level, - GLint xoffset, GLsizei width, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - -extern void -_mesa_store_compressed_texsubimage2d(struct gl_context *ctx, GLenum target, - GLint level, - GLint xoffset, GLint yoffset, - GLsizei width, GLsizei height, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - -extern void -_mesa_store_compressed_texsubimage3d(struct gl_context *ctx, GLenum target, - GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, - GLsizei imageSize, const GLvoid *data, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage); - - -#endif +/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texstore.h
+ * Texture image storage routines.
+ *
+ * \author Brian Paul
+ */
+
+
+#ifndef TEXSTORE_H
+#define TEXSTORE_H
+
+
+#include "mtypes.h"
+#include "formats.h"
+
+
+/**
+ * This macro defines the (many) parameters to the texstore functions.
+ * \param dims either 1 or 2 or 3
+ * \param baseInternalFormat user-specified base internal format
+ * \param dstFormat destination Mesa texture format
+ * \param dstAddr destination image address
+ * \param dstX/Y/Zoffset destination x/y/z offset (ala TexSubImage), in texels
+ * \param dstRowStride destination image row stride, in bytes
+ * \param dstImageOffsets offset of each 2D slice within 3D texture, in texels
+ * \param srcWidth/Height/Depth source image size, in pixels
+ * \param srcFormat incoming image format
+ * \param srcType incoming image data type
+ * \param srcAddr source image address
+ * \param srcPacking source image packing parameters
+ */
+#define TEXSTORE_PARAMS \
+ struct gl_context *ctx, GLuint dims, \
+ GLenum baseInternalFormat, \
+ gl_format dstFormat, \
+ GLvoid *dstAddr, \
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, \
+ GLint dstRowStride, const GLuint *dstImageOffsets, \
+ GLint srcWidth, GLint srcHeight, GLint srcDepth, \
+ GLenum srcFormat, GLenum srcType, \
+ const GLvoid *srcAddr, \
+ const struct gl_pixelstore_attrib *srcPacking
+
+
+extern GLboolean
+_mesa_texstore(TEXSTORE_PARAMS);
+
+
+extern GLchan *
+_mesa_make_temp_chan_image(struct gl_context *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking);
+
+GLfloat *
+_mesa_make_temp_float_image(struct gl_context *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps);
+
+extern void
+_mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth, GLint border,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint width,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_texsubimage2d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint width, GLint height,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_texsubimage3d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_compressed_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+extern void
+_mesa_store_compressed_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+extern void
+_mesa_store_compressed_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+extern void
+_mesa_store_compressed_texsubimage1d(struct gl_context *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+extern void
+_mesa_store_compressed_texsubimage2d(struct gl_context *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+extern void
+_mesa_store_compressed_texsubimage3d(struct gl_context *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage);
+
+
+#endif
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