From c4ae0bb951bfb6061e7f0c492ba03de330137515 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 30 Apr 2011 14:43:27 +0000 Subject: xserver mesa xkeyboard-config git update 30 Apr 2011 --- mesalib/src/mesa/drivers/common/meta.c | 5847 +++++------ mesalib/src/mesa/main/extensions.c | 1999 ++-- mesalib/src/mesa/main/fbobject.c | 5065 +++++----- mesalib/src/mesa/main/formats.c | 3668 +++---- mesalib/src/mesa/main/formats.h | 531 +- mesalib/src/mesa/main/image.c | 3848 ++++---- mesalib/src/mesa/main/mipmap.c | 4308 ++++---- mesalib/src/mesa/main/pack.c | 10249 ++++++++++---------- mesalib/src/mesa/main/texfetch.c | 2084 ++-- mesalib/src/mesa/main/texfetch_tmp.h | 4716 ++++----- mesalib/src/mesa/main/texformat.c | 1506 +-- mesalib/src/mesa/main/texparam.c | 2918 +++--- mesalib/src/mesa/main/texrender.c | 7 +- mesalib/src/mesa/main/texstore.c | 9860 +++++++++---------- mesalib/src/mesa/main/transformfeedback.c | 18 +- mesalib/src/mesa/main/varray.c | 2413 ++--- mesalib/src/mesa/program/register_allocate.c | 972 +- mesalib/src/mesa/state_tracker/st_cb_drawpixels.c | 3078 +++--- mesalib/src/mesa/state_tracker/st_extensions.c | 1177 +-- mesalib/src/mesa/state_tracker/st_format.c | 3360 +++---- 20 files changed, 34112 insertions(+), 33512 deletions(-) (limited to 'mesalib/src') diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c index a3964798b..06d4337f8 100644 --- a/mesalib/src/mesa/drivers/common/meta.c +++ b/mesalib/src/mesa/drivers/common/meta.c @@ -1,2923 +1,2924 @@ -/* - * Mesa 3-D graphics library - * Version: 7.6 - * - * 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. - */ - -/** - * Meta operations. Some GL operations can be expressed in terms of - * other GL operations. For example, glBlitFramebuffer() can be done - * with texture mapping and glClear() can be done with polygon rendering. - * - * \author Brian Paul - */ - - -#include "main/glheader.h" -#include "main/mtypes.h" -#include "main/imports.h" -#include "main/arbprogram.h" -#include "main/arrayobj.h" -#include "main/blend.h" -#include "main/bufferobj.h" -#include "main/buffers.h" -#include "main/colortab.h" -#include "main/condrender.h" -#include "main/depth.h" -#include "main/enable.h" -#include "main/fbobject.h" -#include "main/formats.h" -#include "main/image.h" -#include "main/macros.h" -#include "main/matrix.h" -#include "main/mipmap.h" -#include "main/pbo.h" -#include "main/polygon.h" -#include "main/readpix.h" -#include "main/scissor.h" -#include "main/shaderapi.h" -#include "main/shaderobj.h" -#include "main/state.h" -#include "main/stencil.h" -#include "main/texobj.h" -#include "main/texenv.h" -#include "main/teximage.h" -#include "main/texparam.h" -#include "main/texstate.h" -#include "main/varray.h" -#include "main/viewport.h" -#include "program/program.h" -#include "swrast/swrast.h" -#include "drivers/common/meta.h" - - -/** Return offset in bytes of the field within a vertex struct */ -#define OFFSET(FIELD) ((void *) offsetof(struct vertex, FIELD)) - - -/** - * Flags passed to _mesa_meta_begin(). - */ -/*@{*/ -#define META_ALL ~0x0 -#define META_ALPHA_TEST 0x1 -#define META_BLEND 0x2 /**< includes logicop */ -#define META_COLOR_MASK 0x4 -#define META_DEPTH_TEST 0x8 -#define META_FOG 0x10 -#define META_PIXEL_STORE 0x20 -#define META_PIXEL_TRANSFER 0x40 -#define META_RASTERIZATION 0x80 -#define META_SCISSOR 0x100 -#define META_SHADER 0x200 -#define META_STENCIL_TEST 0x400 -#define META_TRANSFORM 0x800 /**< modelview, projection, clip planes */ -#define META_TEXTURE 0x1000 -#define META_VERTEX 0x2000 -#define META_VIEWPORT 0x4000 -#define META_CLAMP_FRAGMENT_COLOR 0x8000 -#define META_CLAMP_VERTEX_COLOR 0x10000 -#define META_CONDITIONAL_RENDER 0x20000 -/*@}*/ - - -/** - * State which we may save/restore across meta ops. - * XXX this may be incomplete... - */ -struct save_state -{ - GLbitfield SavedState; /**< bitmask of META_* flags */ - - /** META_ALPHA_TEST */ - GLboolean AlphaEnabled; - GLenum AlphaFunc; - GLclampf AlphaRef; - - /** META_BLEND */ - GLbitfield BlendEnabled; - GLboolean ColorLogicOpEnabled; - - /** META_COLOR_MASK */ - GLubyte ColorMask[MAX_DRAW_BUFFERS][4]; - - /** META_DEPTH_TEST */ - struct gl_depthbuffer_attrib Depth; - - /** META_FOG */ - GLboolean Fog; - - /** META_PIXEL_STORE */ - struct gl_pixelstore_attrib Pack, Unpack; - - /** META_PIXEL_TRANSFER */ - GLfloat RedBias, RedScale; - GLfloat GreenBias, GreenScale; - GLfloat BlueBias, BlueScale; - GLfloat AlphaBias, AlphaScale; - GLfloat DepthBias, DepthScale; - GLboolean MapColorFlag; - - /** META_RASTERIZATION */ - GLenum FrontPolygonMode, BackPolygonMode; - GLboolean PolygonOffset; - GLboolean PolygonSmooth; - GLboolean PolygonStipple; - GLboolean PolygonCull; - - /** META_SCISSOR */ - struct gl_scissor_attrib Scissor; - - /** META_SHADER */ - GLboolean VertexProgramEnabled; - struct gl_vertex_program *VertexProgram; - GLboolean FragmentProgramEnabled; - struct gl_fragment_program *FragmentProgram; - struct gl_shader_program *VertexShader; - struct gl_shader_program *GeometryShader; - struct gl_shader_program *FragmentShader; - struct gl_shader_program *ActiveShader; - - /** META_STENCIL_TEST */ - struct gl_stencil_attrib Stencil; - - /** META_TRANSFORM */ - GLenum MatrixMode; - GLfloat ModelviewMatrix[16]; - GLfloat ProjectionMatrix[16]; - GLfloat TextureMatrix[16]; - GLbitfield ClipPlanesEnabled; - - /** META_TEXTURE */ - GLuint ActiveUnit; - GLuint ClientActiveUnit; - /** for unit[0] only */ - struct gl_texture_object *CurrentTexture[NUM_TEXTURE_TARGETS]; - /** mask of TEXTURE_2D_BIT, etc */ - GLbitfield TexEnabled[MAX_TEXTURE_UNITS]; - GLbitfield TexGenEnabled[MAX_TEXTURE_UNITS]; - GLuint EnvMode; /* unit[0] only */ - - /** META_VERTEX */ - struct gl_array_object *ArrayObj; - struct gl_buffer_object *ArrayBufferObj; - - /** META_VIEWPORT */ - GLint ViewportX, ViewportY, ViewportW, ViewportH; - GLclampd DepthNear, DepthFar; - - /** META_CLAMP_FRAGMENT_COLOR */ - GLenum ClampFragmentColor; - - /** META_CLAMP_VERTEX_COLOR */ - GLenum ClampVertexColor; - - /** META_CONDITIONAL_RENDER */ - struct gl_query_object *CondRenderQuery; - GLenum CondRenderMode; - - /** Miscellaneous (always disabled) */ - GLboolean Lighting; -}; - - -/** - * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc. - * This is currently shared by all the meta ops. But we could create a - * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc. - */ -struct temp_texture -{ - GLuint TexObj; - GLenum Target; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */ - GLsizei MinSize; /**< Min texture size to allocate */ - GLsizei MaxSize; /**< Max possible texture size */ - GLboolean NPOT; /**< Non-power of two size OK? */ - GLsizei Width, Height; /**< Current texture size */ - GLenum IntFormat; - GLfloat Sright, Ttop; /**< right, top texcoords */ -}; - - -/** - * State for glBlitFramebufer() - */ -struct blit_state -{ - GLuint ArrayObj; - GLuint VBO; - GLuint DepthFP; -}; - - -/** - * State for glClear() - */ -struct clear_state -{ - GLuint ArrayObj; - GLuint VBO; -}; - - -/** - * State for glCopyPixels() - */ -struct copypix_state -{ - GLuint ArrayObj; - GLuint VBO; -}; - - -/** - * State for glDrawPixels() - */ -struct drawpix_state -{ - GLuint ArrayObj; - - GLuint StencilFP; /**< Fragment program for drawing stencil images */ - GLuint DepthFP; /**< Fragment program for drawing depth images */ -}; - - -/** - * State for glBitmap() - */ -struct bitmap_state -{ - GLuint ArrayObj; - GLuint VBO; - struct temp_texture Tex; /**< separate texture from other meta ops */ -}; - - -/** - * State for _mesa_meta_generate_mipmap() - */ -struct gen_mipmap_state -{ - GLuint ArrayObj; - GLuint VBO; - GLuint FBO; -}; - -#define MAX_META_OPS_DEPTH 2 -/** - * All per-context meta state. - */ -struct gl_meta_state -{ - /** Stack of state saved during meta-ops */ - struct save_state Save[MAX_META_OPS_DEPTH]; - /** Save stack depth */ - GLuint SaveStackDepth; - - struct temp_texture TempTex; - - struct blit_state Blit; /**< For _mesa_meta_BlitFramebuffer() */ - struct clear_state Clear; /**< For _mesa_meta_Clear() */ - struct copypix_state CopyPix; /**< For _mesa_meta_CopyPixels() */ - struct drawpix_state DrawPix; /**< For _mesa_meta_DrawPixels() */ - struct bitmap_state Bitmap; /**< For _mesa_meta_Bitmap() */ - struct gen_mipmap_state Mipmap; /**< For _mesa_meta_GenerateMipmap() */ -}; - - -/** - * Initialize meta-ops for a context. - * To be called once during context creation. - */ -void -_mesa_meta_init(struct gl_context *ctx) -{ - ASSERT(!ctx->Meta); - - ctx->Meta = CALLOC_STRUCT(gl_meta_state); -} - - -/** - * Free context meta-op state. - * To be called once during context destruction. - */ -void -_mesa_meta_free(struct gl_context *ctx) -{ - /* Note: Any textures, VBOs, etc, that we allocate should get - * freed by the normal context destruction code. But this would be - * the place to free other meta data someday. - */ - free(ctx->Meta); - ctx->Meta = NULL; -} - - -/** - * Enter meta state. This is like a light-weight version of glPushAttrib - * but it also resets most GL state back to default values. - * - * \param state bitmask of META_* flags indicating which attribute groups - * to save and reset to their defaults - */ -static void -_mesa_meta_begin(struct gl_context *ctx, GLbitfield state) -{ - struct save_state *save; - - /* hope MAX_META_OPS_DEPTH is large enough */ - assert(ctx->Meta->SaveStackDepth < MAX_META_OPS_DEPTH); - - save = &ctx->Meta->Save[ctx->Meta->SaveStackDepth++]; - memset(save, 0, sizeof(*save)); - save->SavedState = state; - - if (state & META_ALPHA_TEST) { - save->AlphaEnabled = ctx->Color.AlphaEnabled; - save->AlphaFunc = ctx->Color.AlphaFunc; - save->AlphaRef = ctx->Color.AlphaRef; - if (ctx->Color.AlphaEnabled) - _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_FALSE); - } - - if (state & META_BLEND) { - save->BlendEnabled = ctx->Color.BlendEnabled; - if (ctx->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, GL_FALSE); - } - } - else { - _mesa_set_enable(ctx, GL_BLEND, GL_FALSE); - } - } - save->ColorLogicOpEnabled = ctx->Color.ColorLogicOpEnabled; - if (ctx->Color.ColorLogicOpEnabled) - _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, GL_FALSE); - } - - if (state & META_COLOR_MASK) { - memcpy(save->ColorMask, ctx->Color.ColorMask, - sizeof(ctx->Color.ColorMask)); - if (!ctx->Color.ColorMask[0][0] || - !ctx->Color.ColorMask[0][1] || - !ctx->Color.ColorMask[0][2] || - !ctx->Color.ColorMask[0][3]) - _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); - } - - if (state & META_DEPTH_TEST) { - save->Depth = ctx->Depth; /* struct copy */ - if (ctx->Depth.Test) - _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_FALSE); - } - - if (state & META_FOG) { - save->Fog = ctx->Fog.Enabled; - if (ctx->Fog.Enabled) - _mesa_set_enable(ctx, GL_FOG, GL_FALSE); - } - - if (state & META_PIXEL_STORE) { - save->Pack = ctx->Pack; - save->Unpack = ctx->Unpack; - ctx->Pack = ctx->DefaultPacking; - ctx->Unpack = ctx->DefaultPacking; - } - - if (state & META_PIXEL_TRANSFER) { - save->RedScale = ctx->Pixel.RedScale; - save->RedBias = ctx->Pixel.RedBias; - save->GreenScale = ctx->Pixel.GreenScale; - save->GreenBias = ctx->Pixel.GreenBias; - save->BlueScale = ctx->Pixel.BlueScale; - save->BlueBias = ctx->Pixel.BlueBias; - save->AlphaScale = ctx->Pixel.AlphaScale; - save->AlphaBias = ctx->Pixel.AlphaBias; - save->MapColorFlag = ctx->Pixel.MapColorFlag; - 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; - ctx->Pixel.MapColorFlag = GL_FALSE; - /* XXX more state */ - ctx->NewState |=_NEW_PIXEL; - } - - if (state & META_RASTERIZATION) { - save->FrontPolygonMode = ctx->Polygon.FrontMode; - save->BackPolygonMode = ctx->Polygon.BackMode; - save->PolygonOffset = ctx->Polygon.OffsetFill; - save->PolygonSmooth = ctx->Polygon.SmoothFlag; - save->PolygonStipple = ctx->Polygon.StippleFlag; - save->PolygonCull = ctx->Polygon.CullFlag; - _mesa_PolygonMode(GL_FRONT_AND_BACK, GL_FILL); - _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, GL_FALSE); - _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, GL_FALSE); - _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, GL_FALSE); - _mesa_set_enable(ctx, GL_CULL_FACE, GL_FALSE); - } - - if (state & META_SCISSOR) { - save->Scissor = ctx->Scissor; /* struct copy */ - _mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_FALSE); - } - - if (state & META_SHADER) { - if (ctx->Extensions.ARB_vertex_program) { - save->VertexProgramEnabled = ctx->VertexProgram.Enabled; - _mesa_reference_vertprog(ctx, &save->VertexProgram, - ctx->VertexProgram.Current); - _mesa_set_enable(ctx, GL_VERTEX_PROGRAM_ARB, GL_FALSE); - } - - if (ctx->Extensions.ARB_fragment_program) { - save->FragmentProgramEnabled = ctx->FragmentProgram.Enabled; - _mesa_reference_fragprog(ctx, &save->FragmentProgram, - ctx->FragmentProgram.Current); - _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_FALSE); - } - - if (ctx->Extensions.ARB_shader_objects) { - _mesa_reference_shader_program(ctx, &save->VertexShader, - ctx->Shader.CurrentVertexProgram); - _mesa_reference_shader_program(ctx, &save->GeometryShader, - ctx->Shader.CurrentGeometryProgram); - _mesa_reference_shader_program(ctx, &save->FragmentShader, - ctx->Shader.CurrentFragmentProgram); - _mesa_reference_shader_program(ctx, &save->ActiveShader, - ctx->Shader.CurrentFragmentProgram); - - _mesa_UseProgramObjectARB(0); - } - } - - if (state & META_STENCIL_TEST) { - save->Stencil = ctx->Stencil; /* struct copy */ - if (ctx->Stencil.Enabled) - _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_FALSE); - /* NOTE: other stencil state not reset */ - } - - if (state & META_TEXTURE) { - GLuint u, tgt; - - save->ActiveUnit = ctx->Texture.CurrentUnit; - save->ClientActiveUnit = ctx->Array.ActiveTexture; - save->EnvMode = ctx->Texture.Unit[0].EnvMode; - - /* Disable all texture units */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - save->TexEnabled[u] = ctx->Texture.Unit[u].Enabled; - save->TexGenEnabled[u] = ctx->Texture.Unit[u].TexGenEnabled; - if (ctx->Texture.Unit[u].Enabled || - ctx->Texture.Unit[u].TexGenEnabled) { - _mesa_ActiveTextureARB(GL_TEXTURE0 + u); - _mesa_set_enable(ctx, GL_TEXTURE_1D, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_2D, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_3D, GL_FALSE); - if (ctx->Extensions.ARB_texture_cube_map) - _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_FALSE); - _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_FALSE); - } - } - - /* save current texture objects for unit[0] only */ - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - _mesa_reference_texobj(&save->CurrentTexture[tgt], - ctx->Texture.Unit[0].CurrentTex[tgt]); - } - - /* set defaults for unit[0] */ - _mesa_ActiveTextureARB(GL_TEXTURE0); - _mesa_ClientActiveTextureARB(GL_TEXTURE0); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - } - - if (state & META_TRANSFORM) { - GLuint activeTexture = ctx->Texture.CurrentUnit; - memcpy(save->ModelviewMatrix, ctx->ModelviewMatrixStack.Top->m, - 16 * sizeof(GLfloat)); - memcpy(save->ProjectionMatrix, ctx->ProjectionMatrixStack.Top->m, - 16 * sizeof(GLfloat)); - memcpy(save->TextureMatrix, ctx->TextureMatrixStack[0].Top->m, - 16 * sizeof(GLfloat)); - save->MatrixMode = ctx->Transform.MatrixMode; - /* set 1:1 vertex:pixel coordinate transform */ - _mesa_ActiveTextureARB(GL_TEXTURE0); - _mesa_MatrixMode(GL_TEXTURE); - _mesa_LoadIdentity(); - _mesa_ActiveTextureARB(GL_TEXTURE0 + activeTexture); - _mesa_MatrixMode(GL_MODELVIEW); - _mesa_LoadIdentity(); - _mesa_MatrixMode(GL_PROJECTION); - _mesa_LoadIdentity(); - _mesa_Ortho(0.0, ctx->DrawBuffer->Width, - 0.0, ctx->DrawBuffer->Height, - -1.0, 1.0); - save->ClipPlanesEnabled = ctx->Transform.ClipPlanesEnabled; - if (ctx->Transform.ClipPlanesEnabled) { - GLuint i; - for (i = 0; i < ctx->Const.MaxClipPlanes; i++) { - _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE); - } - } - } - - if (state & META_VERTEX) { - /* save vertex array object state */ - _mesa_reference_array_object(ctx, &save->ArrayObj, - ctx->Array.ArrayObj); - _mesa_reference_buffer_object(ctx, &save->ArrayBufferObj, - ctx->Array.ArrayBufferObj); - /* set some default state? */ - } - - if (state & META_VIEWPORT) { - /* save viewport state */ - save->ViewportX = ctx->Viewport.X; - save->ViewportY = ctx->Viewport.Y; - save->ViewportW = ctx->Viewport.Width; - save->ViewportH = ctx->Viewport.Height; - /* set viewport to match window size */ - if (ctx->Viewport.X != 0 || - ctx->Viewport.Y != 0 || - ctx->Viewport.Width != ctx->DrawBuffer->Width || - ctx->Viewport.Height != ctx->DrawBuffer->Height) { - _mesa_set_viewport(ctx, 0, 0, - ctx->DrawBuffer->Width, ctx->DrawBuffer->Height); - } - /* save depth range state */ - save->DepthNear = ctx->Viewport.Near; - save->DepthFar = ctx->Viewport.Far; - /* set depth range to default */ - _mesa_DepthRange(0.0, 1.0); - } - - if (state & META_CLAMP_FRAGMENT_COLOR) { - save->ClampFragmentColor = ctx->Color.ClampFragmentColor; - - /* Generally in here we want to do clamping according to whether - * it's for the pixel path (ClampFragmentColor is GL_TRUE), - * regardless of the internal implementation of the metaops. - */ - if (ctx->Color.ClampFragmentColor != GL_TRUE) - _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE); - } - - if (state & META_CLAMP_VERTEX_COLOR) { - save->ClampVertexColor = ctx->Light.ClampVertexColor; - - /* Generally in here we never want vertex color clamping -- - * result clamping is only dependent on fragment clamping. - */ - _mesa_ClampColorARB(GL_CLAMP_VERTEX_COLOR, GL_FALSE); - } - - if (state & META_CONDITIONAL_RENDER) { - save->CondRenderQuery = ctx->Query.CondRenderQuery; - save->CondRenderMode = ctx->Query.CondRenderMode; - - if (ctx->Query.CondRenderQuery) - _mesa_EndConditionalRender(); - } - - /* misc */ - { - save->Lighting = ctx->Light.Enabled; - if (ctx->Light.Enabled) - _mesa_set_enable(ctx, GL_LIGHTING, GL_FALSE); - } -} - - -/** - * Leave meta state. This is like a light-weight version of glPopAttrib(). - */ -static void -_mesa_meta_end(struct gl_context *ctx) -{ - struct save_state *save = &ctx->Meta->Save[--ctx->Meta->SaveStackDepth]; - const GLbitfield state = save->SavedState; - - if (state & META_ALPHA_TEST) { - if (ctx->Color.AlphaEnabled != save->AlphaEnabled) - _mesa_set_enable(ctx, GL_ALPHA_TEST, save->AlphaEnabled); - _mesa_AlphaFunc(save->AlphaFunc, save->AlphaRef); - } - - if (state & META_BLEND) { - if (ctx->Color.BlendEnabled != save->BlendEnabled) { - if (ctx->Extensions.EXT_draw_buffers2) { - GLuint i; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - _mesa_set_enablei(ctx, GL_BLEND, i, (save->BlendEnabled >> i) & 1); - } - } - else { - _mesa_set_enable(ctx, GL_BLEND, (save->BlendEnabled & 1)); - } - } - if (ctx->Color.ColorLogicOpEnabled != save->ColorLogicOpEnabled) - _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, save->ColorLogicOpEnabled); - } - - if (state & META_COLOR_MASK) { - GLuint i; - for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { - if (!TEST_EQ_4V(ctx->Color.ColorMask[i], save->ColorMask[i])) { - if (i == 0) { - _mesa_ColorMask(save->ColorMask[i][0], save->ColorMask[i][1], - save->ColorMask[i][2], save->ColorMask[i][3]); - } - else { - _mesa_ColorMaskIndexed(i, - save->ColorMask[i][0], - save->ColorMask[i][1], - save->ColorMask[i][2], - save->ColorMask[i][3]); - } - } - } - } - - if (state & META_DEPTH_TEST) { - if (ctx->Depth.Test != save->Depth.Test) - _mesa_set_enable(ctx, GL_DEPTH_TEST, save->Depth.Test); - _mesa_DepthFunc(save->Depth.Func); - _mesa_DepthMask(save->Depth.Mask); - } - - if (state & META_FOG) { - _mesa_set_enable(ctx, GL_FOG, save->Fog); - } - - if (state & META_PIXEL_STORE) { - ctx->Pack = save->Pack; - ctx->Unpack = save->Unpack; - } - - if (state & META_PIXEL_TRANSFER) { - ctx->Pixel.RedScale = save->RedScale; - ctx->Pixel.RedBias = save->RedBias; - ctx->Pixel.GreenScale = save->GreenScale; - ctx->Pixel.GreenBias = save->GreenBias; - ctx->Pixel.BlueScale = save->BlueScale; - ctx->Pixel.BlueBias = save->BlueBias; - ctx->Pixel.AlphaScale = save->AlphaScale; - ctx->Pixel.AlphaBias = save->AlphaBias; - ctx->Pixel.MapColorFlag = save->MapColorFlag; - /* XXX more state */ - ctx->NewState |=_NEW_PIXEL; - } - - if (state & META_RASTERIZATION) { - _mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode); - _mesa_PolygonMode(GL_BACK, save->BackPolygonMode); - _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, save->PolygonStipple); - _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, save->PolygonOffset); - _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, save->PolygonSmooth); - _mesa_set_enable(ctx, GL_CULL_FACE, save->PolygonCull); - } - - if (state & META_SCISSOR) { - _mesa_set_enable(ctx, GL_SCISSOR_TEST, save->Scissor.Enabled); - _mesa_Scissor(save->Scissor.X, save->Scissor.Y, - save->Scissor.Width, save->Scissor.Height); - } - - if (state & META_SHADER) { - if (ctx->Extensions.ARB_vertex_program) { - _mesa_set_enable(ctx, GL_VERTEX_PROGRAM_ARB, - save->VertexProgramEnabled); - _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, - save->VertexProgram); - _mesa_reference_vertprog(ctx, &save->VertexProgram, NULL); - } - - if (ctx->Extensions.ARB_fragment_program) { - _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, - save->FragmentProgramEnabled); - _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, - save->FragmentProgram); - _mesa_reference_fragprog(ctx, &save->FragmentProgram, NULL); - } - - if (ctx->Extensions.ARB_vertex_shader) - _mesa_use_shader_program(ctx, GL_VERTEX_SHADER, save->VertexShader); - - if (ctx->Extensions.ARB_geometry_shader4) - _mesa_use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, - save->GeometryShader); - - if (ctx->Extensions.ARB_fragment_shader) - _mesa_use_shader_program(ctx, GL_FRAGMENT_SHADER, - save->FragmentShader); - - _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, - save->ActiveShader); - } - - if (state & META_STENCIL_TEST) { - const struct gl_stencil_attrib *stencil = &save->Stencil; - - _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]); - } - - if (state & META_TEXTURE) { - GLuint u, tgt; - - ASSERT(ctx->Texture.CurrentUnit == 0); - - /* restore texenv for unit[0] */ - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, save->EnvMode); - - /* restore texture objects for unit[0] only */ - for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { - _mesa_reference_texobj(&ctx->Texture.Unit[0].CurrentTex[tgt], - save->CurrentTexture[tgt]); - _mesa_reference_texobj(&save->CurrentTexture[tgt], NULL); - } - - /* Re-enable textures, texgen */ - for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { - if (save->TexEnabled[u]) { - _mesa_ActiveTextureARB(GL_TEXTURE0 + u); - - if (save->TexEnabled[u] & TEXTURE_1D_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_1D, GL_TRUE); - if (save->TexEnabled[u] & TEXTURE_2D_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_2D, GL_TRUE); - if (save->TexEnabled[u] & TEXTURE_3D_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_3D, GL_TRUE); - if (save->TexEnabled[u] & TEXTURE_CUBE_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_TRUE); - if (save->TexEnabled[u] & TEXTURE_RECT_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_TRUE); - } - - if (save->TexGenEnabled[u]) { - _mesa_ActiveTextureARB(GL_TEXTURE0 + u); - - if (save->TexGenEnabled[u] & S_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_TRUE); - if (save->TexGenEnabled[u] & T_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_TRUE); - if (save->TexGenEnabled[u] & R_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_TRUE); - if (save->TexGenEnabled[u] & Q_BIT) - _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_TRUE); - } - } - - /* restore current unit state */ - _mesa_ActiveTextureARB(GL_TEXTURE0 + save->ActiveUnit); - _mesa_ClientActiveTextureARB(GL_TEXTURE0 + save->ClientActiveUnit); - } - - if (state & META_TRANSFORM) { - GLuint activeTexture = ctx->Texture.CurrentUnit; - _mesa_ActiveTextureARB(GL_TEXTURE0); - _mesa_MatrixMode(GL_TEXTURE); - _mesa_LoadMatrixf(save->TextureMatrix); - _mesa_ActiveTextureARB(GL_TEXTURE0 + activeTexture); - - _mesa_MatrixMode(GL_MODELVIEW); - _mesa_LoadMatrixf(save->ModelviewMatrix); - - _mesa_MatrixMode(GL_PROJECTION); - _mesa_LoadMatrixf(save->ProjectionMatrix); - - _mesa_MatrixMode(save->MatrixMode); - - if (save->ClipPlanesEnabled) { - GLuint i; - for (i = 0; i < ctx->Const.MaxClipPlanes; i++) { - if (save->ClipPlanesEnabled & (1 << i)) { - _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE); - } - } - } - } - - if (state & META_VERTEX) { - /* restore vertex buffer object */ - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, save->ArrayBufferObj->Name); - _mesa_reference_buffer_object(ctx, &save->ArrayBufferObj, NULL); - - /* restore vertex array object */ - _mesa_BindVertexArray(save->ArrayObj->Name); - _mesa_reference_array_object(ctx, &save->ArrayObj, NULL); - } - - if (state & META_VIEWPORT) { - if (save->ViewportX != ctx->Viewport.X || - save->ViewportY != ctx->Viewport.Y || - save->ViewportW != ctx->Viewport.Width || - save->ViewportH != ctx->Viewport.Height) { - _mesa_set_viewport(ctx, save->ViewportX, save->ViewportY, - save->ViewportW, save->ViewportH); - } - _mesa_DepthRange(save->DepthNear, save->DepthFar); - } - - if (state & META_CLAMP_FRAGMENT_COLOR) { - _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, save->ClampFragmentColor); - } - - if (state & META_CLAMP_VERTEX_COLOR) { - _mesa_ClampColorARB(GL_CLAMP_VERTEX_COLOR, save->ClampVertexColor); - } - - if (state & META_CONDITIONAL_RENDER) { - if (save->CondRenderQuery) - _mesa_BeginConditionalRender(save->CondRenderQuery->Id, - save->CondRenderMode); - } - - /* misc */ - if (save->Lighting) { - _mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE); - } -} - - -/** - * Convert Z from a normalized value in the range [0, 1] to an object-space - * Z coordinate in [-1, +1] so that drawing at the new Z position with the - * default/identity ortho projection results in the original Z value. - * Used by the meta-Clear, Draw/CopyPixels and Bitmap functions where the Z - * value comes from the clear value or raster position. - */ -static INLINE GLfloat -invert_z(GLfloat normZ) -{ - GLfloat objZ = 1.0 - 2.0 * normZ; - return objZ; -} - - -/** - * One-time init for a temp_texture object. - * Choose tex target, compute max tex size, etc. - */ -static void -init_temp_texture(struct gl_context *ctx, struct temp_texture *tex) -{ - /* prefer texture rectangle */ - if (ctx->Extensions.NV_texture_rectangle) { - tex->Target = GL_TEXTURE_RECTANGLE; - tex->MaxSize = ctx->Const.MaxTextureRectSize; - tex->NPOT = GL_TRUE; - } - else { - /* use 2D texture, NPOT if possible */ - tex->Target = GL_TEXTURE_2D; - tex->MaxSize = 1 << (ctx->Const.MaxTextureLevels - 1); - tex->NPOT = ctx->Extensions.ARB_texture_non_power_of_two; - } - tex->MinSize = 16; /* 16 x 16 at least */ - assert(tex->MaxSize > 0); - - _mesa_GenTextures(1, &tex->TexObj); -} - - -/** - * Return pointer to temp_texture info for non-bitmap ops. - * This does some one-time init if needed. - */ -static struct temp_texture * -get_temp_texture(struct gl_context *ctx) -{ - struct temp_texture *tex = &ctx->Meta->TempTex; - - if (!tex->TexObj) { - init_temp_texture(ctx, tex); - } - - return tex; -} - - -/** - * Return pointer to temp_texture info for _mesa_meta_bitmap(). - * We use a separate texture for bitmaps to reduce texture - * allocation/deallocation. - */ -static struct temp_texture * -get_bitmap_temp_texture(struct gl_context *ctx) -{ - struct temp_texture *tex = &ctx->Meta->Bitmap.Tex; - - if (!tex->TexObj) { - init_temp_texture(ctx, tex); - } - - return tex; -} - - -/** - * Compute the width/height of texture needed to draw an image of the - * given size. Return a flag indicating whether the current texture - * can be re-used (glTexSubImage2D) or if a new texture needs to be - * allocated (glTexImage2D). - * Also, compute s/t texcoords for drawing. - * - * \return GL_TRUE if new texture is needed, GL_FALSE otherwise - */ -static GLboolean -alloc_texture(struct temp_texture *tex, - GLsizei width, GLsizei height, GLenum intFormat) -{ - GLboolean newTex = GL_FALSE; - - ASSERT(width <= tex->MaxSize); - ASSERT(height <= tex->MaxSize); - - if (width > tex->Width || - height > tex->Height || - intFormat != tex->IntFormat) { - /* alloc new texture (larger or different format) */ - - if (tex->NPOT) { - /* use non-power of two size */ - tex->Width = MAX2(tex->MinSize, width); - tex->Height = MAX2(tex->MinSize, height); - } - else { - /* find power of two size */ - GLsizei w, h; - w = h = tex->MinSize; - while (w < width) - w *= 2; - while (h < height) - h *= 2; - tex->Width = w; - tex->Height = h; - } - - tex->IntFormat = intFormat; - - newTex = GL_TRUE; - } - - /* compute texcoords */ - if (tex->Target == GL_TEXTURE_RECTANGLE) { - tex->Sright = (GLfloat) width; - tex->Ttop = (GLfloat) height; - } - else { - tex->Sright = (GLfloat) width / tex->Width; - tex->Ttop = (GLfloat) height / tex->Height; - } - - return newTex; -} - - -/** - * Setup/load texture for glCopyPixels or glBlitFramebuffer. - */ -static void -setup_copypix_texture(struct temp_texture *tex, - GLboolean newTex, - GLint srcX, GLint srcY, - GLsizei width, GLsizei height, GLenum intFormat, - GLenum filter) -{ - _mesa_BindTexture(tex->Target, tex->TexObj); - _mesa_TexParameteri(tex->Target, GL_TEXTURE_MIN_FILTER, filter); - _mesa_TexParameteri(tex->Target, GL_TEXTURE_MAG_FILTER, filter); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - - /* copy framebuffer image to texture */ - if (newTex) { - /* create new tex image */ - if (tex->Width == width && tex->Height == height) { - /* create new tex with framebuffer data */ - _mesa_CopyTexImage2D(tex->Target, 0, tex->IntFormat, - srcX, srcY, width, height, 0); - } - else { - /* create empty texture */ - _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, - tex->Width, tex->Height, 0, - intFormat, GL_UNSIGNED_BYTE, NULL); - /* load image */ - _mesa_CopyTexSubImage2D(tex->Target, 0, - 0, 0, srcX, srcY, width, height); - } - } - else { - /* replace existing tex image */ - _mesa_CopyTexSubImage2D(tex->Target, 0, - 0, 0, srcX, srcY, width, height); - } -} - - -/** - * Setup/load texture for glDrawPixels. - */ -static void -setup_drawpix_texture(struct gl_context *ctx, - struct temp_texture *tex, - GLboolean newTex, - GLenum texIntFormat, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const GLvoid *pixels) -{ - _mesa_BindTexture(tex->Target, tex->TexObj); - _mesa_TexParameteri(tex->Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - _mesa_TexParameteri(tex->Target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - - /* copy pixel data to texture */ - if (newTex) { - /* create new tex image */ - if (tex->Width == width && tex->Height == height) { - /* create new tex and load image data */ - _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, - tex->Width, tex->Height, 0, format, type, pixels); - } - else { - struct gl_buffer_object *save_unpack_obj = NULL; - - _mesa_reference_buffer_object(ctx, &save_unpack_obj, - ctx->Unpack.BufferObj); - _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0); - /* create empty texture */ - _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, - tex->Width, tex->Height, 0, format, type, NULL); - if (save_unpack_obj != NULL) - _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, - save_unpack_obj->Name); - /* load image */ - _mesa_TexSubImage2D(tex->Target, 0, - 0, 0, width, height, format, type, pixels); - } - } - else { - /* replace existing tex image */ - _mesa_TexSubImage2D(tex->Target, 0, - 0, 0, width, height, format, type, pixels); - } -} - - - -/** - * One-time init for drawing depth pixels. - */ -static void -init_blit_depth_pixels(struct gl_context *ctx) -{ - static const char *program = - "!!ARBfp1.0\n" - "TEX result.depth, fragment.texcoord[0], texture[0], %s; \n" - "END \n"; - char program2[200]; - struct blit_state *blit = &ctx->Meta->Blit; - struct temp_texture *tex = get_temp_texture(ctx); - const char *texTarget; - - assert(blit->DepthFP == 0); - - /* replace %s with "RECT" or "2D" */ - assert(strlen(program) + 4 < sizeof(program2)); - if (tex->Target == GL_TEXTURE_RECTANGLE) - texTarget = "RECT"; - else - texTarget = "2D"; - _mesa_snprintf(program2, sizeof(program2), program, texTarget); - - _mesa_GenPrograms(1, &blit->DepthFP); - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP); - _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, - strlen(program2), (const GLubyte *) program2); -} - - -/** - * Try to do a glBlitFramebuffer using no-copy texturing. - * We can do this when the src renderbuffer is actually a texture. - * But if the src buffer == dst buffer we cannot do this. - * - * \return new buffer mask indicating the buffers left to blit using the - * normal path. - */ -static GLbitfield -blitframebuffer_texture(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) -{ - if (mask & GL_COLOR_BUFFER_BIT) { - const struct gl_framebuffer *drawFb = ctx->DrawBuffer; - const struct gl_framebuffer *readFb = ctx->ReadBuffer; - const struct gl_renderbuffer_attachment *drawAtt = - &drawFb->Attachment[drawFb->_ColorDrawBufferIndexes[0]]; - const struct gl_renderbuffer_attachment *readAtt = - &readFb->Attachment[readFb->_ColorReadBufferIndex]; - - if (readAtt && readAtt->Texture) { - const struct gl_texture_object *texObj = readAtt->Texture; - const GLuint srcLevel = readAtt->TextureLevel; - const GLenum minFilterSave = texObj->Sampler.MinFilter; - const GLenum magFilterSave = texObj->Sampler.MagFilter; - const GLint baseLevelSave = texObj->BaseLevel; - const GLint maxLevelSave = texObj->MaxLevel; - const GLenum wrapSSave = texObj->Sampler.WrapS; - const GLenum wrapTSave = texObj->Sampler.WrapT; - const GLenum target = texObj->Target; - - if (drawAtt->Texture == readAtt->Texture) { - /* Can't use same texture as both the source and dest. We need - * to handle overlapping blits and besides, some hw may not - * support this. - */ - return mask; - } - - if (target != GL_TEXTURE_2D && target != GL_TEXTURE_RECTANGLE_ARB) { - /* Can't handle other texture types at this time */ - return mask; - } - - /* - printf("Blit from texture!\n"); - printf(" srcAtt %p dstAtt %p\n", readAtt, drawAtt); - printf(" srcTex %p dstText %p\n", texObj, drawAtt->Texture); - */ - - /* Prepare src texture state */ - _mesa_BindTexture(target, texObj->Name); - _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter); - _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter); - if (target != GL_TEXTURE_RECTANGLE_ARB) { - _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel); - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel); - } - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - _mesa_set_enable(ctx, target, GL_TRUE); - - /* Prepare vertex data (the VBO was previously created and bound) */ - { - struct vertex { - GLfloat x, y, s, t; - }; - struct vertex verts[4]; - GLfloat s0, t0, s1, t1; - - if (target == GL_TEXTURE_2D) { - const struct gl_texture_image *texImage - = _mesa_select_tex_image(ctx, texObj, target, srcLevel); - s0 = srcX0 / (float) texImage->Width; - s1 = srcX1 / (float) texImage->Width; - t0 = srcY0 / (float) texImage->Height; - t1 = srcY1 / (float) texImage->Height; - } - else { - assert(target == GL_TEXTURE_RECTANGLE_ARB); - s0 = srcX0; - s1 = srcX1; - t0 = srcY0; - t1 = srcY1; - } - - verts[0].x = (GLfloat) dstX0; - verts[0].y = (GLfloat) dstY0; - verts[1].x = (GLfloat) dstX1; - verts[1].y = (GLfloat) dstY0; - verts[2].x = (GLfloat) dstX1; - verts[2].y = (GLfloat) dstY1; - verts[3].x = (GLfloat) dstX0; - verts[3].y = (GLfloat) dstY1; - - verts[0].s = s0; - verts[0].t = t0; - verts[1].s = s1; - verts[1].t = t0; - verts[2].s = s1; - verts[2].t = t1; - verts[3].s = s0; - verts[3].t = t1; - - _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); - } - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - - /* Restore texture object state, the texture binding will - * be restored by _mesa_meta_end(). - */ - _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave); - _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave); - if (target != GL_TEXTURE_RECTANGLE_ARB) { - _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, baseLevelSave); - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave); - } - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave); - - /* Done with color buffer */ - mask &= ~GL_COLOR_BUFFER_BIT; - } - } - - return mask; -} - - -/** - * Meta implementation of ctx->Driver.BlitFramebuffer() in terms - * of texture mapping and polygon rendering. - */ -void -_mesa_meta_BlitFramebuffer(struct gl_context *ctx, - GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter) -{ - struct blit_state *blit = &ctx->Meta->Blit; - struct temp_texture *tex = get_temp_texture(ctx); - const GLsizei maxTexSize = tex->MaxSize; - const GLint srcX = MIN2(srcX0, srcX1); - const GLint srcY = MIN2(srcY0, srcY1); - const GLint srcW = abs(srcX1 - srcX0); - const GLint srcH = abs(srcY1 - srcY0); - const GLboolean srcFlipX = srcX1 < srcX0; - const GLboolean srcFlipY = srcY1 < srcY0; - struct vertex { - GLfloat x, y, s, t; - }; - struct vertex verts[4]; - GLboolean newTex; - - if (srcW > maxTexSize || srcH > maxTexSize) { - /* XXX avoid this fallback */ - _swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, mask, filter); - return; - } - - if (srcFlipX) { - GLint tmp = dstX0; - dstX0 = dstX1; - dstX1 = tmp; - } - - if (srcFlipY) { - GLint tmp = dstY0; - dstY0 = dstY1; - dstY1 = tmp; - } - - /* only scissor effects blit so save/clear all other relevant state */ - _mesa_meta_begin(ctx, ~META_SCISSOR); - - if (blit->ArrayObj == 0) { - /* one-time setup */ - - /* create vertex array object */ - _mesa_GenVertexArrays(1, &blit->ArrayObj); - _mesa_BindVertexArray(blit->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, &blit->VBO); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, blit->VBO); - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), - NULL, GL_DYNAMIC_DRAW_ARB); - - /* setup vertex arrays */ - _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); - } - else { - _mesa_BindVertexArray(blit->ArrayObj); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, blit->VBO); - } - - /* Try faster, direct texture approach first */ - mask = blitframebuffer_texture(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, mask, filter); - if (mask == 0x0) { - _mesa_meta_end(ctx); - return; - } - - /* Continue with "normal" approach which involves copying the src rect - * into a temporary texture and is "blitted" by drawing a textured quad. - */ - - newTex = alloc_texture(tex, srcW, srcH, GL_RGBA); - - /* vertex positions/texcoords (after texture allocation!) */ - { - verts[0].x = (GLfloat) dstX0; - verts[0].y = (GLfloat) dstY0; - verts[1].x = (GLfloat) dstX1; - verts[1].y = (GLfloat) dstY0; - verts[2].x = (GLfloat) dstX1; - verts[2].y = (GLfloat) dstY1; - verts[3].x = (GLfloat) dstX0; - verts[3].y = (GLfloat) dstY1; - - verts[0].s = 0.0F; - verts[0].t = 0.0F; - verts[1].s = tex->Sright; - verts[1].t = 0.0F; - verts[2].s = tex->Sright; - verts[2].t = tex->Ttop; - verts[3].s = 0.0F; - verts[3].t = tex->Ttop; - - /* upload new vertex data */ - _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); - } - - _mesa_set_enable(ctx, tex->Target, GL_TRUE); - - if (mask & GL_COLOR_BUFFER_BIT) { - setup_copypix_texture(tex, newTex, srcX, srcY, srcW, srcH, - GL_RGBA, filter); - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - mask &= ~GL_COLOR_BUFFER_BIT; - } - - if (mask & GL_DEPTH_BUFFER_BIT) { - GLuint *tmp = (GLuint *) malloc(srcW * srcH * sizeof(GLuint)); - if (tmp) { - if (!blit->DepthFP) - init_blit_depth_pixels(ctx); - - /* maybe change tex format here */ - newTex = alloc_texture(tex, srcW, srcH, GL_DEPTH_COMPONENT); - - _mesa_ReadPixels(srcX, srcY, srcW, srcH, - GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); - - setup_drawpix_texture(ctx, tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH, - GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); - - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP); - _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); - _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); - _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_TRUE); - _mesa_DepthFunc(GL_ALWAYS); - _mesa_DepthMask(GL_TRUE); - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - mask &= ~GL_DEPTH_BUFFER_BIT; - - free(tmp); - } - } - - if (mask & GL_STENCIL_BUFFER_BIT) { - /* XXX can't easily do stencil */ - } - - _mesa_set_enable(ctx, tex->Target, GL_FALSE); - - _mesa_meta_end(ctx); - - if (mask) { - _swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1, - dstX0, dstY0, dstX1, dstY1, mask, filter); - } -} - - -/** - * Meta implementation of ctx->Driver.Clear() in terms of polygon rendering. - */ -void -_mesa_meta_Clear(struct gl_context *ctx, GLbitfield buffers) -{ - struct clear_state *clear = &ctx->Meta->Clear; - struct vertex { - GLfloat x, y, z, r, g, b, a; - }; - struct vertex verts[4]; - /* save all state but scissor, pixel pack/unpack */ - GLbitfield metaSave = (META_ALL - - META_SCISSOR - - META_PIXEL_STORE - - META_CONDITIONAL_RENDER); - const GLuint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1; - - if (buffers & BUFFER_BITS_COLOR) { - /* if clearing color buffers, don't save/restore colormask */ - metaSave -= META_COLOR_MASK; - } - - _mesa_meta_begin(ctx, metaSave); - - if (clear->ArrayObj == 0) { - /* one-time setup */ - - /* create vertex array object */ - _mesa_GenVertexArrays(1, &clear->ArrayObj); - _mesa_BindVertexArray(clear->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, &clear->VBO); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO); - - /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_COLOR_ARRAY); - } - else { - _mesa_BindVertexArray(clear->ArrayObj); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO); - } - - /* GL_COLOR_BUFFER_BIT */ - if (buffers & BUFFER_BITS_COLOR) { - /* leave colormask, glDrawBuffer state as-is */ - - /* Clears never have the color clamped. */ - _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE); - } - else { - ASSERT(metaSave & META_COLOR_MASK); - _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); - } - - /* GL_DEPTH_BUFFER_BIT */ - if (buffers & BUFFER_BIT_DEPTH) { - _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_TRUE); - _mesa_DepthFunc(GL_ALWAYS); - _mesa_DepthMask(GL_TRUE); - } - else { - assert(!ctx->Depth.Test); - } - - /* GL_STENCIL_BUFFER_BIT */ - if (buffers & BUFFER_BIT_STENCIL) { - _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_TRUE); - _mesa_StencilOpSeparate(GL_FRONT_AND_BACK, - GL_REPLACE, GL_REPLACE, GL_REPLACE); - _mesa_StencilFuncSeparate(GL_FRONT_AND_BACK, GL_ALWAYS, - ctx->Stencil.Clear & stencilMax, - ctx->Stencil.WriteMask[0]); - } - else { - assert(!ctx->Stencil.Enabled); - } - - /* vertex positions/colors */ - { - const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin; - const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin; - const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax; - const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax; - const GLfloat z = invert_z(ctx->Depth.Clear); - GLuint i; - - verts[0].x = x0; - verts[0].y = y0; - verts[0].z = z; - verts[1].x = x1; - verts[1].y = y0; - verts[1].z = z; - verts[2].x = x1; - verts[2].y = y1; - verts[2].z = z; - verts[3].x = x0; - verts[3].y = y1; - verts[3].z = z; - - /* vertex colors */ - for (i = 0; i < 4; i++) { - verts[i].r = ctx->Color.ClearColorUnclamped[0]; - verts[i].g = ctx->Color.ClearColorUnclamped[1]; - verts[i].b = ctx->Color.ClearColorUnclamped[2]; - verts[i].a = ctx->Color.ClearColorUnclamped[3]; - } - - /* upload new vertex data */ - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), verts, - GL_DYNAMIC_DRAW_ARB); - } - - /* draw quad */ - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - - _mesa_meta_end(ctx); -} - - -/** - * Meta implementation of ctx->Driver.CopyPixels() in terms - * of texture mapping and polygon rendering. - */ -void -_mesa_meta_CopyPixels(struct gl_context *ctx, GLint srcX, GLint srcY, - GLsizei width, GLsizei height, - GLint dstX, GLint dstY, GLenum type) -{ - struct copypix_state *copypix = &ctx->Meta->CopyPix; - struct temp_texture *tex = get_temp_texture(ctx); - struct vertex { - GLfloat x, y, z, s, t; - }; - struct vertex verts[4]; - GLboolean newTex; - GLenum intFormat = GL_RGBA; - - if (type != GL_COLOR || - ctx->_ImageTransferState || - ctx->Fog.Enabled || - width > tex->MaxSize || - height > tex->MaxSize) { - /* XXX avoid this fallback */ - _swrast_CopyPixels(ctx, srcX, srcY, width, height, dstX, dstY, type); - return; - } - - /* Most GL state applies to glCopyPixels, but a there's a few things - * we need to override: - */ - _mesa_meta_begin(ctx, (META_RASTERIZATION | - META_SHADER | - META_TEXTURE | - META_TRANSFORM | - META_VERTEX | - META_VIEWPORT)); - - if (copypix->ArrayObj == 0) { - /* one-time setup */ - - /* create vertex array object */ - _mesa_GenVertexArrays(1, ©pix->ArrayObj); - _mesa_BindVertexArray(copypix->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, ©pix->VBO); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, copypix->VBO); - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), - NULL, GL_DYNAMIC_DRAW_ARB); - - /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); - } - else { - _mesa_BindVertexArray(copypix->ArrayObj); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, copypix->VBO); - } - - newTex = alloc_texture(tex, width, height, intFormat); - - /* vertex positions, texcoords (after texture allocation!) */ - { - const GLfloat dstX0 = (GLfloat) dstX; - const GLfloat dstY0 = (GLfloat) dstY; - const GLfloat dstX1 = dstX + width * ctx->Pixel.ZoomX; - const GLfloat dstY1 = dstY + height * ctx->Pixel.ZoomY; - const GLfloat z = invert_z(ctx->Current.RasterPos[2]); - - verts[0].x = dstX0; - verts[0].y = dstY0; - verts[0].z = z; - verts[0].s = 0.0F; - verts[0].t = 0.0F; - verts[1].x = dstX1; - verts[1].y = dstY0; - verts[1].z = z; - verts[1].s = tex->Sright; - verts[1].t = 0.0F; - verts[2].x = dstX1; - verts[2].y = dstY1; - verts[2].z = z; - verts[2].s = tex->Sright; - verts[2].t = tex->Ttop; - verts[3].x = dstX0; - verts[3].y = dstY1; - verts[3].z = z; - verts[3].s = 0.0F; - verts[3].t = tex->Ttop; - - /* upload new vertex data */ - _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); - } - - /* Alloc/setup texture */ - setup_copypix_texture(tex, newTex, srcX, srcY, width, height, - GL_RGBA, GL_NEAREST); - - _mesa_set_enable(ctx, tex->Target, GL_TRUE); - - /* draw textured quad */ - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - - _mesa_set_enable(ctx, tex->Target, GL_FALSE); - - _mesa_meta_end(ctx); -} - - - -/** - * When the glDrawPixels() image size is greater than the max rectangle - * texture size we use this function to break the glDrawPixels() image - * into tiles which fit into the max texture size. - */ -static void -tiled_draw_pixels(struct gl_context *ctx, - GLint tileSize, - GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct gl_pixelstore_attrib tileUnpack = *unpack; - GLint i, j; - - if (tileUnpack.RowLength == 0) - tileUnpack.RowLength = width; - - for (i = 0; i < width; i += tileSize) { - const GLint tileWidth = MIN2(tileSize, width - i); - const GLint tileX = (GLint) (x + i * ctx->Pixel.ZoomX); - - tileUnpack.SkipPixels = unpack->SkipPixels + i; - - for (j = 0; j < height; j += tileSize) { - const GLint tileHeight = MIN2(tileSize, height - j); - const GLint tileY = (GLint) (y + j * ctx->Pixel.ZoomY); - - tileUnpack.SkipRows = unpack->SkipRows + j; - - _mesa_meta_DrawPixels(ctx, tileX, tileY, tileWidth, tileHeight, - format, type, &tileUnpack, pixels); - } - } -} - - -/** - * One-time init for drawing stencil pixels. - */ -static void -init_draw_stencil_pixels(struct gl_context *ctx) -{ - /* This program is run eight times, once for each stencil bit. - * The stencil values to draw are found in an 8-bit alpha texture. - * We read the texture/stencil value and test if bit 'b' is set. - * If the bit is not set, use KIL to kill the fragment. - * Finally, we use the stencil test to update the stencil buffer. - * - * The basic algorithm for checking if a bit is set is: - * if (is_odd(value / (1 << bit))) - * result is one (or non-zero). - * else - * result is zero. - * The program parameter contains three values: - * parm.x = 255 / (1 << bit) - * parm.y = 0.5 - * parm.z = 0.0 - */ - static const char *program = - "!!ARBfp1.0\n" - "PARAM parm = program.local[0]; \n" - "TEMP t; \n" - "TEX t, fragment.texcoord[0], texture[0], %s; \n" /* NOTE %s here! */ - "# t = t * 255 / bit \n" - "MUL t.x, t.a, parm.x; \n" - "# t = (int) t \n" - "FRC t.y, t.x; \n" - "SUB t.x, t.x, t.y; \n" - "# t = t * 0.5 \n" - "MUL t.x, t.x, parm.y; \n" - "# t = fract(t.x) \n" - "FRC t.x, t.x; # if t.x != 0, then the bit is set \n" - "# t.x = (t.x == 0 ? 1 : 0) \n" - "SGE t.x, -t.x, parm.z; \n" - "KIL -t.x; \n" - "# for debug only \n" - "#MOV result.color, t.x; \n" - "END \n"; - char program2[1000]; - struct drawpix_state *drawpix = &ctx->Meta->DrawPix; - struct temp_texture *tex = get_temp_texture(ctx); - const char *texTarget; - - assert(drawpix->StencilFP == 0); - - /* replace %s with "RECT" or "2D" */ - assert(strlen(program) + 4 < sizeof(program2)); - if (tex->Target == GL_TEXTURE_RECTANGLE) - texTarget = "RECT"; - else - texTarget = "2D"; - _mesa_snprintf(program2, sizeof(program2), program, texTarget); - - _mesa_GenPrograms(1, &drawpix->StencilFP); - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->StencilFP); - _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, - strlen(program2), (const GLubyte *) program2); -} - - -/** - * One-time init for drawing depth pixels. - */ -static void -init_draw_depth_pixels(struct gl_context *ctx) -{ - static const char *program = - "!!ARBfp1.0\n" - "PARAM color = program.local[0]; \n" - "TEX result.depth, fragment.texcoord[0], texture[0], %s; \n" - "MOV result.color, color; \n" - "END \n"; - char program2[200]; - struct drawpix_state *drawpix = &ctx->Meta->DrawPix; - struct temp_texture *tex = get_temp_texture(ctx); - const char *texTarget; - - assert(drawpix->DepthFP == 0); - - /* replace %s with "RECT" or "2D" */ - assert(strlen(program) + 4 < sizeof(program2)); - if (tex->Target == GL_TEXTURE_RECTANGLE) - texTarget = "RECT"; - else - texTarget = "2D"; - _mesa_snprintf(program2, sizeof(program2), program, texTarget); - - _mesa_GenPrograms(1, &drawpix->DepthFP); - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->DepthFP); - _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, - strlen(program2), (const GLubyte *) program2); -} - - -/** - * Meta implementation of ctx->Driver.DrawPixels() in terms - * of texture mapping and polygon rendering. - */ -void -_mesa_meta_DrawPixels(struct gl_context *ctx, - GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct drawpix_state *drawpix = &ctx->Meta->DrawPix; - struct temp_texture *tex = get_temp_texture(ctx); - const struct gl_pixelstore_attrib unpackSave = ctx->Unpack; - const GLuint origStencilMask = ctx->Stencil.WriteMask[0]; - struct vertex { - GLfloat x, y, z, s, t; - }; - struct vertex verts[4]; - GLenum texIntFormat; - GLboolean fallback, newTex; - GLbitfield metaExtraSave = 0x0; - GLuint vbo; - - /* - * Determine if we can do the glDrawPixels with texture mapping. - */ - fallback = GL_FALSE; - if (ctx->_ImageTransferState || - ctx->Fog.Enabled) { - fallback = GL_TRUE; - } - - if (_mesa_is_color_format(format)) { - /* use more compact format when possible */ - /* XXX disable special case for GL_LUMINANCE for now to work around - * apparent i965 driver bug (see bug #23670). - */ - if (/*format == GL_LUMINANCE ||*/ format == GL_LUMINANCE_ALPHA) - texIntFormat = format; - else - texIntFormat = GL_RGBA; - - /* If we're not supposed to clamp the resulting color, then just - * promote our texture to fully float. We could do better by - * just going for the matching set of channels, in floating - * point. - */ - if (ctx->Color.ClampFragmentColor != GL_TRUE) - texIntFormat = GL_RGBA32F; - } - else if (_mesa_is_stencil_format(format)) { - if (ctx->Extensions.ARB_fragment_program && - ctx->Pixel.IndexShift == 0 && - ctx->Pixel.IndexOffset == 0 && - type == GL_UNSIGNED_BYTE) { - /* We'll store stencil as alpha. This only works for GLubyte - * image data because of how incoming values are mapped to alpha - * in [0,1]. - */ - texIntFormat = GL_ALPHA; - metaExtraSave = (META_COLOR_MASK | - META_DEPTH_TEST | - META_SHADER | - META_STENCIL_TEST); - } - else { - fallback = GL_TRUE; - } - } - else if (_mesa_is_depth_format(format)) { - if (ctx->Extensions.ARB_depth_texture && - ctx->Extensions.ARB_fragment_program) { - texIntFormat = GL_DEPTH_COMPONENT; - metaExtraSave = (META_SHADER); - } - else { - fallback = GL_TRUE; - } - } - else { - fallback = GL_TRUE; - } - - if (fallback) { - _swrast_DrawPixels(ctx, x, y, width, height, - format, type, unpack, pixels); - return; - } - - /* - * Check image size against max texture size, draw as tiles if needed. - */ - if (width > tex->MaxSize || height > tex->MaxSize) { - tiled_draw_pixels(ctx, tex->MaxSize, x, y, width, height, - format, type, unpack, pixels); - return; - } - - /* Most GL state applies to glDrawPixels (like blending, stencil, etc), - * but a there's a few things we need to override: - */ - _mesa_meta_begin(ctx, (META_RASTERIZATION | - META_SHADER | - META_TEXTURE | - META_TRANSFORM | - META_VERTEX | - META_VIEWPORT | - META_CLAMP_FRAGMENT_COLOR | - metaExtraSave)); - - newTex = alloc_texture(tex, width, height, texIntFormat); - - /* vertex positions, texcoords (after texture allocation!) */ - { - const GLfloat x0 = (GLfloat) x; - const GLfloat y0 = (GLfloat) y; - const GLfloat x1 = x + width * ctx->Pixel.ZoomX; - const GLfloat y1 = y + height * ctx->Pixel.ZoomY; - const GLfloat z = invert_z(ctx->Current.RasterPos[2]); - - verts[0].x = x0; - verts[0].y = y0; - verts[0].z = z; - verts[0].s = 0.0F; - verts[0].t = 0.0F; - verts[1].x = x1; - verts[1].y = y0; - verts[1].z = z; - verts[1].s = tex->Sright; - verts[1].t = 0.0F; - verts[2].x = x1; - verts[2].y = y1; - verts[2].z = z; - verts[2].s = tex->Sright; - verts[2].t = tex->Ttop; - verts[3].x = x0; - verts[3].y = y1; - verts[3].z = z; - verts[3].s = 0.0F; - verts[3].t = tex->Ttop; - } - - if (drawpix->ArrayObj == 0) { - /* one-time setup: create vertex array object */ - _mesa_GenVertexArrays(1, &drawpix->ArrayObj); - } - _mesa_BindVertexArray(drawpix->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, &vbo); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, vbo); - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), - verts, GL_DYNAMIC_DRAW_ARB); - - /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); - - /* set given unpack params */ - ctx->Unpack = *unpack; - - _mesa_set_enable(ctx, tex->Target, GL_TRUE); - - if (_mesa_is_stencil_format(format)) { - /* Drawing stencil */ - GLint bit; - - if (!drawpix->StencilFP) - init_draw_stencil_pixels(ctx); - - setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, - GL_ALPHA, type, pixels); - - _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); - - _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_TRUE); - - /* set all stencil bits to 0 */ - _mesa_StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); - _mesa_StencilFunc(GL_ALWAYS, 0, 255); - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - - /* set stencil bits to 1 where needed */ - _mesa_StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); - - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->StencilFP); - _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); - - for (bit = 0; bit < ctx->DrawBuffer->Visual.stencilBits; bit++) { - const GLuint mask = 1 << bit; - if (mask & origStencilMask) { - _mesa_StencilFunc(GL_ALWAYS, mask, mask); - _mesa_StencilMask(mask); - - _mesa_ProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 0, - 255.0 / mask, 0.5, 0.0, 0.0); - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - } - } - else if (_mesa_is_depth_format(format)) { - /* Drawing depth */ - if (!drawpix->DepthFP) - init_draw_depth_pixels(ctx); - - _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->DepthFP); - _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); - - /* polygon color = current raster color */ - _mesa_ProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, - ctx->Current.RasterColor); - - setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, - format, type, pixels); - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - else { - /* Drawing RGBA */ - setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, - format, type, pixels); - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - - _mesa_set_enable(ctx, tex->Target, GL_FALSE); - - _mesa_DeleteBuffersARB(1, &vbo); - - /* restore unpack params */ - ctx->Unpack = unpackSave; - - _mesa_meta_end(ctx); -} - -static GLboolean -alpha_test_raster_color(struct gl_context *ctx) -{ - GLfloat alpha = ctx->Current.RasterColor[ACOMP]; - GLfloat ref = ctx->Color.AlphaRef; - - switch (ctx->Color.AlphaFunc) { - case GL_NEVER: - return GL_FALSE; - case GL_LESS: - return alpha < ref; - case GL_EQUAL: - return alpha == ref; - case GL_LEQUAL: - return alpha <= ref; - case GL_GREATER: - return alpha > ref; - case GL_NOTEQUAL: - return alpha != ref; - case GL_GEQUAL: - return alpha >= ref; - case GL_ALWAYS: - return GL_TRUE; - default: - assert(0); - return GL_FALSE; - } -} - -/** - * Do glBitmap with a alpha texture quad. Use the alpha test to cull - * the 'off' bits. A bitmap cache as in the gallium/mesa state - * tracker would improve performance a lot. - */ -void -_mesa_meta_Bitmap(struct gl_context *ctx, - GLint x, GLint y, GLsizei width, GLsizei height, - const struct gl_pixelstore_attrib *unpack, - const GLubyte *bitmap1) -{ - struct bitmap_state *bitmap = &ctx->Meta->Bitmap; - struct temp_texture *tex = get_bitmap_temp_texture(ctx); - const GLenum texIntFormat = GL_ALPHA; - const struct gl_pixelstore_attrib unpackSave = *unpack; - GLubyte fg, bg; - struct vertex { - GLfloat x, y, z, s, t, r, g, b, a; - }; - struct vertex verts[4]; - GLboolean newTex; - GLubyte *bitmap8; - - /* - * Check if swrast fallback is needed. - */ - if (ctx->_ImageTransferState || - ctx->FragmentProgram._Enabled || - ctx->Fog.Enabled || - ctx->Texture._EnabledUnits || - width > tex->MaxSize || - height > tex->MaxSize) { - _swrast_Bitmap(ctx, x, y, width, height, unpack, bitmap1); - return; - } - - if (ctx->Color.AlphaEnabled && !alpha_test_raster_color(ctx)) - return; - - /* Most GL state applies to glBitmap (like blending, stencil, etc), - * but a there's a few things we need to override: - */ - _mesa_meta_begin(ctx, (META_ALPHA_TEST | - META_PIXEL_STORE | - META_RASTERIZATION | - META_SHADER | - META_TEXTURE | - META_TRANSFORM | - META_VERTEX | - META_VIEWPORT)); - - if (bitmap->ArrayObj == 0) { - /* one-time setup */ - - /* create vertex array object */ - _mesa_GenVertexArraysAPPLE(1, &bitmap->ArrayObj); - _mesa_BindVertexArrayAPPLE(bitmap->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, &bitmap->VBO); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->VBO); - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), - NULL, GL_DYNAMIC_DRAW_ARB); - - /* setup vertex arrays */ - _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); - _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); - _mesa_EnableClientState(GL_COLOR_ARRAY); - } - else { - _mesa_BindVertexArray(bitmap->ArrayObj); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->VBO); - } - - newTex = alloc_texture(tex, width, height, texIntFormat); - - /* vertex positions, texcoords, colors (after texture allocation!) */ - { - const GLfloat x0 = (GLfloat) x; - const GLfloat y0 = (GLfloat) y; - const GLfloat x1 = (GLfloat) (x + width); - const GLfloat y1 = (GLfloat) (y + height); - const GLfloat z = invert_z(ctx->Current.RasterPos[2]); - GLuint i; - - verts[0].x = x0; - verts[0].y = y0; - verts[0].z = z; - verts[0].s = 0.0F; - verts[0].t = 0.0F; - verts[1].x = x1; - verts[1].y = y0; - verts[1].z = z; - verts[1].s = tex->Sright; - verts[1].t = 0.0F; - verts[2].x = x1; - verts[2].y = y1; - verts[2].z = z; - verts[2].s = tex->Sright; - verts[2].t = tex->Ttop; - verts[3].x = x0; - verts[3].y = y1; - verts[3].z = z; - verts[3].s = 0.0F; - verts[3].t = tex->Ttop; - - for (i = 0; i < 4; i++) { - verts[i].r = ctx->Current.RasterColor[0]; - verts[i].g = ctx->Current.RasterColor[1]; - verts[i].b = ctx->Current.RasterColor[2]; - verts[i].a = ctx->Current.RasterColor[3]; - } - - /* upload new vertex data */ - _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); - } - - /* choose different foreground/background alpha values */ - CLAMPED_FLOAT_TO_UBYTE(fg, ctx->Current.RasterColor[ACOMP]); - bg = (fg > 127 ? 0 : 255); - - bitmap1 = _mesa_map_pbo_source(ctx, &unpackSave, bitmap1); - if (!bitmap1) { - _mesa_meta_end(ctx); - return; - } - - bitmap8 = (GLubyte *) malloc(width * height); - if (bitmap8) { - memset(bitmap8, bg, width * height); - _mesa_expand_bitmap(width, height, &unpackSave, bitmap1, - bitmap8, width, fg); - - _mesa_set_enable(ctx, tex->Target, GL_TRUE); - - _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE); - _mesa_AlphaFunc(GL_NOTEQUAL, UBYTE_TO_FLOAT(bg)); - - setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, - GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8); - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - - _mesa_set_enable(ctx, tex->Target, GL_FALSE); - - free(bitmap8); - } - - _mesa_unmap_pbo_source(ctx, &unpackSave); - - _mesa_meta_end(ctx); -} - - -/** - * Check if the call to _mesa_meta_GenerateMipmap() will require a - * software fallback. The fallback path will require that the texture - * images are mapped. - * \return GL_TRUE if a fallback is needed, GL_FALSE otherwise - */ -GLboolean -_mesa_meta_check_generate_mipmap_fallback(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj) -{ - const GLuint fboSave = ctx->DrawBuffer->Name; - struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap; - struct gl_texture_image *baseImage; - GLuint srcLevel; - GLenum status; - - /* check for fallbacks */ - if (!ctx->Extensions.EXT_framebuffer_object || - target == GL_TEXTURE_3D) { - return GL_TRUE; - } - - srcLevel = texObj->BaseLevel; - baseImage = _mesa_select_tex_image(ctx, texObj, target, srcLevel); - if (!baseImage || _mesa_is_format_compressed(baseImage->TexFormat)) { - return GL_TRUE; - } - - /* - * Test that we can actually render in the texture's format. - */ - if (!mipmap->FBO) - _mesa_GenFramebuffersEXT(1, &mipmap->FBO); - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO); - - if (target == GL_TEXTURE_1D) { - _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - target, texObj->Name, srcLevel); - } -#if 0 - /* other work is needed to enable 3D mipmap generation */ - else if (target == GL_TEXTURE_3D) { - GLint zoffset = 0; - _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - target, texObj->Name, srcLevel, zoffset); - } -#endif - else { - /* 2D / cube */ - _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - target, texObj->Name, srcLevel); - } - - status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); - - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave); - - if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { - return GL_TRUE; - } - - return GL_FALSE; -} - - -/** - * Called via ctx->Driver.GenerateMipmap() - * Note: texture borders and 3D texture support not yet complete. - */ -void -_mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target, - struct gl_texture_object *texObj) -{ - struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap; - struct vertex { - GLfloat x, y, s, t, r; - }; - struct vertex verts[4]; - const GLuint baseLevel = texObj->BaseLevel; - const GLuint maxLevel = texObj->MaxLevel; - const GLenum minFilterSave = texObj->Sampler.MinFilter; - const GLenum magFilterSave = texObj->Sampler.MagFilter; - const GLint maxLevelSave = texObj->MaxLevel; - const GLboolean genMipmapSave = texObj->GenerateMipmap; - const GLenum wrapSSave = texObj->Sampler.WrapS; - const GLenum wrapTSave = texObj->Sampler.WrapT; - const GLenum wrapRSave = texObj->Sampler.WrapR; - const GLuint fboSave = ctx->DrawBuffer->Name; - const GLuint original_active_unit = ctx->Texture.CurrentUnit; - GLenum faceTarget; - GLuint dstLevel; - GLuint border = 0; - - if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) { - _mesa_generate_mipmap(ctx, target, texObj); - return; - } - - if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && - target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) { - faceTarget = target; - target = GL_TEXTURE_CUBE_MAP; - } - else { - faceTarget = target; - } - - _mesa_meta_begin(ctx, META_ALL); - - if (original_active_unit != 0) - _mesa_BindTexture(target, texObj->Name); - - if (mipmap->ArrayObj == 0) { - /* one-time setup */ - - /* create vertex array object */ - _mesa_GenVertexArraysAPPLE(1, &mipmap->ArrayObj); - _mesa_BindVertexArrayAPPLE(mipmap->ArrayObj); - - /* create vertex array buffer */ - _mesa_GenBuffersARB(1, &mipmap->VBO); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); - _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), - NULL, GL_DYNAMIC_DRAW_ARB); - - /* setup vertex arrays */ - _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); - _mesa_TexCoordPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); - _mesa_EnableClientState(GL_VERTEX_ARRAY); - _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); - } - else { - _mesa_BindVertexArray(mipmap->ArrayObj); - _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); - } - - if (!mipmap->FBO) { - _mesa_GenFramebuffersEXT(1, &mipmap->FBO); - } - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO); - - _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); - _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); - - _mesa_set_enable(ctx, target, GL_TRUE); - - /* setup texcoords once (XXX what about border?) */ - switch (faceTarget) { - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - verts[0].s = 0.0F; - verts[0].t = 0.0F; - verts[0].r = 0.0F; - verts[1].s = 1.0F; - verts[1].t = 0.0F; - verts[1].r = 0.0F; - verts[2].s = 1.0F; - verts[2].t = 1.0F; - verts[2].r = 0.0F; - verts[3].s = 0.0F; - verts[3].t = 1.0F; - verts[3].r = 0.0F; - break; - case GL_TEXTURE_3D: - abort(); - break; - default: - /* cube face */ - { - static const GLfloat st[4][2] = { - {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} - }; - GLuint i; - - /* loop over quad verts */ - for (i = 0; i < 4; i++) { - /* Compute sc = +/-scale and tc = +/-scale. - * Not +/-1 to avoid cube face selection ambiguity near the edges, - * though that can still sometimes happen with this scale factor... - */ - const GLfloat scale = 0.9999f; - const GLfloat sc = (2.0f * st[i][0] - 1.0f) * scale; - const GLfloat tc = (2.0f * st[i][1] - 1.0f) * scale; - - switch (faceTarget) { - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - verts[i].s = 1.0f; - verts[i].t = -tc; - verts[i].r = -sc; - break; - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - verts[i].s = -1.0f; - verts[i].t = -tc; - verts[i].r = sc; - break; - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - verts[i].s = sc; - verts[i].t = 1.0f; - verts[i].r = tc; - break; - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - verts[i].s = sc; - verts[i].t = -1.0f; - verts[i].r = -tc; - break; - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - verts[i].s = sc; - verts[i].t = -tc; - verts[i].r = 1.0f; - break; - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - verts[i].s = -sc; - verts[i].t = -tc; - verts[i].r = -1.0f; - break; - default: - assert(0); - } - } - } - } - - _mesa_set_enable(ctx, target, GL_TRUE); - - /* setup vertex positions */ - { - verts[0].x = 0.0F; - verts[0].y = 0.0F; - verts[1].x = 1.0F; - verts[1].y = 0.0F; - verts[2].x = 1.0F; - verts[2].y = 1.0F; - verts[3].x = 0.0F; - verts[3].y = 1.0F; - - /* upload new vertex data */ - _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); - } - - /* setup projection matrix */ - _mesa_MatrixMode(GL_PROJECTION); - _mesa_LoadIdentity(); - _mesa_Ortho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0); - - /* texture is already locked, unlock now */ - _mesa_unlock_texture(ctx, texObj); - - for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) { - const struct gl_texture_image *srcImage; - const GLuint srcLevel = dstLevel - 1; - GLsizei srcWidth, srcHeight, srcDepth; - GLsizei dstWidth, dstHeight, dstDepth; - GLenum status; - - srcImage = _mesa_select_tex_image(ctx, texObj, faceTarget, srcLevel); - assert(srcImage->Border == 0); /* XXX we can fix this */ - - /* src size w/out border */ - srcWidth = srcImage->Width - 2 * border; - srcHeight = srcImage->Height - 2 * border; - srcDepth = srcImage->Depth - 2 * border; - - /* new dst size w/ border */ - dstWidth = MAX2(1, srcWidth / 2) + 2 * border; - dstHeight = MAX2(1, srcHeight / 2) + 2 * border; - dstDepth = MAX2(1, srcDepth / 2) + 2 * border; - - if (dstWidth == srcImage->Width && - dstHeight == srcImage->Height && - dstDepth == srcImage->Depth) { - /* all done */ - break; - } - - /* Set MaxLevel large enough to hold the new level when we allocate it */ - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, dstLevel); - - /* Create empty dest image */ - if (target == GL_TEXTURE_1D) { - _mesa_TexImage1D(target, dstLevel, srcImage->InternalFormat, - dstWidth, border, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - } - else if (target == GL_TEXTURE_3D) { - _mesa_TexImage3D(target, dstLevel, srcImage->InternalFormat, - dstWidth, dstHeight, dstDepth, border, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - } - else { - /* 2D or cube */ - _mesa_TexImage2D(faceTarget, dstLevel, srcImage->InternalFormat, - dstWidth, dstHeight, border, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - - if (target == GL_TEXTURE_CUBE_MAP) { - /* If texturing from a cube, we need to make sure all src faces - * have been defined (even if we're not sampling from them.) - * Otherwise the texture object will be 'incomplete' and - * texturing from it will not be allowed. - */ - GLuint face; - for (face = 0; face < 6; face++) { - if (!texObj->Image[face][srcLevel] || - texObj->Image[face][srcLevel]->Width != srcWidth) { - _mesa_TexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, - srcLevel, srcImage->InternalFormat, - srcWidth, srcHeight, border, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - } - } - } - } - - /* limit minification to src level */ - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel); - - /* Set to draw into the current dstLevel */ - if (target == GL_TEXTURE_1D) { - _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - target, - texObj->Name, - dstLevel); - } - else if (target == GL_TEXTURE_3D) { - GLint zoffset = 0; /* XXX unfinished */ - _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - target, - texObj->Name, - dstLevel, zoffset); - } - else { - /* 2D / cube */ - _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, - GL_COLOR_ATTACHMENT0_EXT, - faceTarget, - texObj->Name, - dstLevel); - } - - _mesa_DrawBuffer(GL_COLOR_ATTACHMENT0_EXT); - - /* sanity check */ - status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); - if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { - abort(); - break; - } - - assert(dstWidth == ctx->DrawBuffer->Width); - assert(dstHeight == ctx->DrawBuffer->Height); - - /* setup viewport */ - _mesa_set_viewport(ctx, 0, 0, dstWidth, dstHeight); - - _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); - } - - _mesa_lock_texture(ctx, texObj); /* relock */ - - _mesa_meta_end(ctx); - - _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave); - _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave); - _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave); - _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, genMipmapSave); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave); - _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, wrapRSave); - - _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave); -} - - -/** - * Determine the GL data type to use for the temporary image read with - * ReadPixels() and passed to Tex[Sub]Image(). - */ -static GLenum -get_temp_image_type(struct gl_context *ctx, GLenum baseFormat) -{ - switch (baseFormat) { - case GL_RGBA: - case GL_RGB: - case GL_ALPHA: - case GL_LUMINANCE: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - if (ctx->DrawBuffer->Visual.redBits <= 8) - return GL_UNSIGNED_BYTE; - else if (ctx->DrawBuffer->Visual.redBits <= 8) - return GL_UNSIGNED_SHORT; - else - return GL_FLOAT; - case GL_DEPTH_COMPONENT: - return GL_UNSIGNED_INT; - case GL_DEPTH_STENCIL: - return GL_UNSIGNED_INT_24_8; - default: - _mesa_problem(ctx, "Unexpected format in get_temp_image_type()"); - return 0; - } -} - - -/** - * Helper for _mesa_meta_CopyTexImage1/2D() functions. - * Have to be careful with locking and meta state for pixel transfer. - */ -static void -copy_tex_image(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; - GLenum format, type; - GLint bpp; - void *buf; - - texObj = _mesa_get_current_tex_object(ctx, target); - texImage = _mesa_get_tex_image(ctx, texObj, target, level); - - /* Choose format/type for temporary image buffer */ - format = _mesa_base_tex_format(ctx, internalFormat); - type = get_temp_image_type(ctx, format); - bpp = _mesa_bytes_per_pixel(format, type); - if (bpp <= 0) { - _mesa_problem(ctx, "Bad bpp in meta copy_tex_image()"); - return; - } - - /* - * Alloc image buffer (XXX could use a PBO) - */ - buf = malloc(width * height * bpp); - if (!buf) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); - return; - } - - _mesa_unlock_texture(ctx, texObj); /* need to unlock first */ - - /* - * Read image from framebuffer (disable pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); - ctx->Driver.ReadPixels(ctx, x, y, width, height, - format, type, &ctx->Pack, buf); - _mesa_meta_end(ctx); - - if (texImage->Data) { - ctx->Driver.FreeTexImageData(ctx, texImage); - } - - /* The texture's format was already chosen in _mesa_CopyTexImage() */ - ASSERT(texImage->TexFormat != MESA_FORMAT_NONE); - - /* - * Store texture data (with pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE); - - _mesa_update_state(ctx); /* to update pixel transfer state */ - - if (target == GL_TEXTURE_1D) { - ctx->Driver.TexImage1D(ctx, target, level, internalFormat, - width, border, format, type, - buf, &ctx->Unpack, texObj, texImage); - } - else { - ctx->Driver.TexImage2D(ctx, target, level, internalFormat, - width, height, border, format, type, - buf, &ctx->Unpack, texObj, texImage); - } - _mesa_meta_end(ctx); - - _mesa_lock_texture(ctx, texObj); /* re-lock */ - - free(buf); -} - - -void -_mesa_meta_CopyTexImage1D(struct gl_context *ctx, GLenum target, GLint level, - GLenum internalFormat, GLint x, GLint y, - GLsizei width, GLint border) -{ - copy_tex_image(ctx, 1, target, level, internalFormat, x, y, - width, 1, border); -} - - -void -_mesa_meta_CopyTexImage2D(struct gl_context *ctx, GLenum target, GLint level, - GLenum internalFormat, GLint x, GLint y, - GLsizei width, GLsizei height, GLint border) -{ - copy_tex_image(ctx, 2, target, level, internalFormat, x, y, - width, height, border); -} - - - -/** - * Helper for _mesa_meta_CopyTexSubImage1/2/3D() functions. - * Have to be careful with locking and meta state for pixel transfer. - */ -static void -copy_tex_sub_image(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; - GLenum format, type; - GLint bpp; - void *buf; - - texObj = _mesa_get_current_tex_object(ctx, target); - texImage = _mesa_select_tex_image(ctx, texObj, target, level); - - /* Choose format/type for temporary image buffer */ - format = _mesa_get_format_base_format(texImage->TexFormat); - type = get_temp_image_type(ctx, format); - bpp = _mesa_bytes_per_pixel(format, type); - if (bpp <= 0) { - _mesa_problem(ctx, "Bad bpp in meta copy_tex_sub_image()"); - return; - } - - /* - * Alloc image buffer (XXX could use a PBO) - */ - buf = malloc(width * height * bpp); - if (!buf) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%uD", dims); - return; - } - - _mesa_unlock_texture(ctx, texObj); /* need to unlock first */ - - /* - * Read image from framebuffer (disable pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); - ctx->Driver.ReadPixels(ctx, x, y, width, height, - format, type, &ctx->Pack, buf); - _mesa_meta_end(ctx); - - _mesa_update_state(ctx); /* to update pixel transfer state */ - - /* - * Store texture data (with pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE); - if (target == GL_TEXTURE_1D) { - ctx->Driver.TexSubImage1D(ctx, target, level, xoffset, - width, format, type, buf, - &ctx->Unpack, texObj, texImage); - } - else if (target == GL_TEXTURE_3D) { - ctx->Driver.TexSubImage3D(ctx, target, level, xoffset, yoffset, zoffset, - width, height, 1, format, type, buf, - &ctx->Unpack, texObj, texImage); - } - else { - ctx->Driver.TexSubImage2D(ctx, target, level, xoffset, yoffset, - width, height, format, type, buf, - &ctx->Unpack, texObj, texImage); - } - _mesa_meta_end(ctx); - - _mesa_lock_texture(ctx, texObj); /* re-lock */ - - free(buf); -} - - -void -_mesa_meta_CopyTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, - GLint x, GLint y, GLsizei width) -{ - copy_tex_sub_image(ctx, 1, target, level, xoffset, 0, 0, - x, y, width, 1); -} - - -void -_mesa_meta_CopyTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, - GLint x, GLint y, - GLsizei width, GLsizei height) -{ - copy_tex_sub_image(ctx, 2, target, level, xoffset, yoffset, 0, - x, y, width, height); -} - - -void -_mesa_meta_CopyTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint yoffset, GLint zoffset, - GLint x, GLint y, - GLsizei width, GLsizei height) -{ - copy_tex_sub_image(ctx, 3, target, level, xoffset, yoffset, zoffset, - x, y, width, height); -} - - -void -_mesa_meta_CopyColorTable(struct gl_context *ctx, - GLenum target, GLenum internalformat, - GLint x, GLint y, GLsizei width) -{ - GLfloat *buf; - - buf = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); - if (!buf) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorTable"); - return; - } - - /* - * Read image from framebuffer (disable pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); - ctx->Driver.ReadPixels(ctx, x, y, width, 1, - GL_RGBA, GL_FLOAT, &ctx->Pack, buf); - - _mesa_ColorTable(target, internalformat, width, GL_RGBA, GL_FLOAT, buf); - - _mesa_meta_end(ctx); - - free(buf); -} - - -void -_mesa_meta_CopyColorSubTable(struct gl_context *ctx,GLenum target, GLsizei start, - GLint x, GLint y, GLsizei width) -{ - GLfloat *buf; - - buf = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); - if (!buf) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorSubTable"); - return; - } - - /* - * Read image from framebuffer (disable pixel transfer ops) - */ - _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); - ctx->Driver.ReadPixels(ctx, x, y, width, 1, - GL_RGBA, GL_FLOAT, &ctx->Pack, buf); - - _mesa_ColorSubTable(target, start, width, GL_RGBA, GL_FLOAT, buf); - - _mesa_meta_end(ctx); - - free(buf); -} +/* + * Mesa 3-D graphics library + * Version: 7.6 + * + * 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. + */ + +/** + * Meta operations. Some GL operations can be expressed in terms of + * other GL operations. For example, glBlitFramebuffer() can be done + * with texture mapping and glClear() can be done with polygon rendering. + * + * \author Brian Paul + */ + + +#include "main/glheader.h" +#include "main/mtypes.h" +#include "main/imports.h" +#include "main/arbprogram.h" +#include "main/arrayobj.h" +#include "main/blend.h" +#include "main/bufferobj.h" +#include "main/buffers.h" +#include "main/colortab.h" +#include "main/condrender.h" +#include "main/depth.h" +#include "main/enable.h" +#include "main/fbobject.h" +#include "main/formats.h" +#include "main/image.h" +#include "main/macros.h" +#include "main/matrix.h" +#include "main/mipmap.h" +#include "main/pbo.h" +#include "main/polygon.h" +#include "main/readpix.h" +#include "main/scissor.h" +#include "main/shaderapi.h" +#include "main/shaderobj.h" +#include "main/state.h" +#include "main/stencil.h" +#include "main/texobj.h" +#include "main/texenv.h" +#include "main/teximage.h" +#include "main/texparam.h" +#include "main/texstate.h" +#include "main/varray.h" +#include "main/viewport.h" +#include "program/program.h" +#include "swrast/swrast.h" +#include "drivers/common/meta.h" + + +/** Return offset in bytes of the field within a vertex struct */ +#define OFFSET(FIELD) ((void *) offsetof(struct vertex, FIELD)) + + +/** + * Flags passed to _mesa_meta_begin(). + */ +/*@{*/ +#define META_ALL ~0x0 +#define META_ALPHA_TEST 0x1 +#define META_BLEND 0x2 /**< includes logicop */ +#define META_COLOR_MASK 0x4 +#define META_DEPTH_TEST 0x8 +#define META_FOG 0x10 +#define META_PIXEL_STORE 0x20 +#define META_PIXEL_TRANSFER 0x40 +#define META_RASTERIZATION 0x80 +#define META_SCISSOR 0x100 +#define META_SHADER 0x200 +#define META_STENCIL_TEST 0x400 +#define META_TRANSFORM 0x800 /**< modelview, projection, clip planes */ +#define META_TEXTURE 0x1000 +#define META_VERTEX 0x2000 +#define META_VIEWPORT 0x4000 +#define META_CLAMP_FRAGMENT_COLOR 0x8000 +#define META_CLAMP_VERTEX_COLOR 0x10000 +#define META_CONDITIONAL_RENDER 0x20000 +/*@}*/ + + +/** + * State which we may save/restore across meta ops. + * XXX this may be incomplete... + */ +struct save_state +{ + GLbitfield SavedState; /**< bitmask of META_* flags */ + + /** META_ALPHA_TEST */ + GLboolean AlphaEnabled; + GLenum AlphaFunc; + GLclampf AlphaRef; + + /** META_BLEND */ + GLbitfield BlendEnabled; + GLboolean ColorLogicOpEnabled; + + /** META_COLOR_MASK */ + GLubyte ColorMask[MAX_DRAW_BUFFERS][4]; + + /** META_DEPTH_TEST */ + struct gl_depthbuffer_attrib Depth; + + /** META_FOG */ + GLboolean Fog; + + /** META_PIXEL_STORE */ + struct gl_pixelstore_attrib Pack, Unpack; + + /** META_PIXEL_TRANSFER */ + GLfloat RedBias, RedScale; + GLfloat GreenBias, GreenScale; + GLfloat BlueBias, BlueScale; + GLfloat AlphaBias, AlphaScale; + GLfloat DepthBias, DepthScale; + GLboolean MapColorFlag; + + /** META_RASTERIZATION */ + GLenum FrontPolygonMode, BackPolygonMode; + GLboolean PolygonOffset; + GLboolean PolygonSmooth; + GLboolean PolygonStipple; + GLboolean PolygonCull; + + /** META_SCISSOR */ + struct gl_scissor_attrib Scissor; + + /** META_SHADER */ + GLboolean VertexProgramEnabled; + struct gl_vertex_program *VertexProgram; + GLboolean FragmentProgramEnabled; + struct gl_fragment_program *FragmentProgram; + struct gl_shader_program *VertexShader; + struct gl_shader_program *GeometryShader; + struct gl_shader_program *FragmentShader; + struct gl_shader_program *ActiveShader; + + /** META_STENCIL_TEST */ + struct gl_stencil_attrib Stencil; + + /** META_TRANSFORM */ + GLenum MatrixMode; + GLfloat ModelviewMatrix[16]; + GLfloat ProjectionMatrix[16]; + GLfloat TextureMatrix[16]; + GLbitfield ClipPlanesEnabled; + + /** META_TEXTURE */ + GLuint ActiveUnit; + GLuint ClientActiveUnit; + /** for unit[0] only */ + struct gl_texture_object *CurrentTexture[NUM_TEXTURE_TARGETS]; + /** mask of TEXTURE_2D_BIT, etc */ + GLbitfield TexEnabled[MAX_TEXTURE_UNITS]; + GLbitfield TexGenEnabled[MAX_TEXTURE_UNITS]; + GLuint EnvMode; /* unit[0] only */ + + /** META_VERTEX */ + struct gl_array_object *ArrayObj; + struct gl_buffer_object *ArrayBufferObj; + + /** META_VIEWPORT */ + GLint ViewportX, ViewportY, ViewportW, ViewportH; + GLclampd DepthNear, DepthFar; + + /** META_CLAMP_FRAGMENT_COLOR */ + GLenum ClampFragmentColor; + + /** META_CLAMP_VERTEX_COLOR */ + GLenum ClampVertexColor; + + /** META_CONDITIONAL_RENDER */ + struct gl_query_object *CondRenderQuery; + GLenum CondRenderMode; + + /** Miscellaneous (always disabled) */ + GLboolean Lighting; +}; + + +/** + * Temporary texture used for glBlitFramebuffer, glDrawPixels, etc. + * This is currently shared by all the meta ops. But we could create a + * separate one for each of glDrawPixel, glBlitFramebuffer, glCopyPixels, etc. + */ +struct temp_texture +{ + GLuint TexObj; + GLenum Target; /**< GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE */ + GLsizei MinSize; /**< Min texture size to allocate */ + GLsizei MaxSize; /**< Max possible texture size */ + GLboolean NPOT; /**< Non-power of two size OK? */ + GLsizei Width, Height; /**< Current texture size */ + GLenum IntFormat; + GLfloat Sright, Ttop; /**< right, top texcoords */ +}; + + +/** + * State for glBlitFramebufer() + */ +struct blit_state +{ + GLuint ArrayObj; + GLuint VBO; + GLuint DepthFP; +}; + + +/** + * State for glClear() + */ +struct clear_state +{ + GLuint ArrayObj; + GLuint VBO; +}; + + +/** + * State for glCopyPixels() + */ +struct copypix_state +{ + GLuint ArrayObj; + GLuint VBO; +}; + + +/** + * State for glDrawPixels() + */ +struct drawpix_state +{ + GLuint ArrayObj; + + GLuint StencilFP; /**< Fragment program for drawing stencil images */ + GLuint DepthFP; /**< Fragment program for drawing depth images */ +}; + + +/** + * State for glBitmap() + */ +struct bitmap_state +{ + GLuint ArrayObj; + GLuint VBO; + struct temp_texture Tex; /**< separate texture from other meta ops */ +}; + + +/** + * State for _mesa_meta_generate_mipmap() + */ +struct gen_mipmap_state +{ + GLuint ArrayObj; + GLuint VBO; + GLuint FBO; +}; + +#define MAX_META_OPS_DEPTH 2 +/** + * All per-context meta state. + */ +struct gl_meta_state +{ + /** Stack of state saved during meta-ops */ + struct save_state Save[MAX_META_OPS_DEPTH]; + /** Save stack depth */ + GLuint SaveStackDepth; + + struct temp_texture TempTex; + + struct blit_state Blit; /**< For _mesa_meta_BlitFramebuffer() */ + struct clear_state Clear; /**< For _mesa_meta_Clear() */ + struct copypix_state CopyPix; /**< For _mesa_meta_CopyPixels() */ + struct drawpix_state DrawPix; /**< For _mesa_meta_DrawPixels() */ + struct bitmap_state Bitmap; /**< For _mesa_meta_Bitmap() */ + struct gen_mipmap_state Mipmap; /**< For _mesa_meta_GenerateMipmap() */ +}; + + +/** + * Initialize meta-ops for a context. + * To be called once during context creation. + */ +void +_mesa_meta_init(struct gl_context *ctx) +{ + ASSERT(!ctx->Meta); + + ctx->Meta = CALLOC_STRUCT(gl_meta_state); +} + + +/** + * Free context meta-op state. + * To be called once during context destruction. + */ +void +_mesa_meta_free(struct gl_context *ctx) +{ + /* Note: Any textures, VBOs, etc, that we allocate should get + * freed by the normal context destruction code. But this would be + * the place to free other meta data someday. + */ + free(ctx->Meta); + ctx->Meta = NULL; +} + + +/** + * Enter meta state. This is like a light-weight version of glPushAttrib + * but it also resets most GL state back to default values. + * + * \param state bitmask of META_* flags indicating which attribute groups + * to save and reset to their defaults + */ +static void +_mesa_meta_begin(struct gl_context *ctx, GLbitfield state) +{ + struct save_state *save; + + /* hope MAX_META_OPS_DEPTH is large enough */ + assert(ctx->Meta->SaveStackDepth < MAX_META_OPS_DEPTH); + + save = &ctx->Meta->Save[ctx->Meta->SaveStackDepth++]; + memset(save, 0, sizeof(*save)); + save->SavedState = state; + + if (state & META_ALPHA_TEST) { + save->AlphaEnabled = ctx->Color.AlphaEnabled; + save->AlphaFunc = ctx->Color.AlphaFunc; + save->AlphaRef = ctx->Color.AlphaRef; + if (ctx->Color.AlphaEnabled) + _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_FALSE); + } + + if (state & META_BLEND) { + save->BlendEnabled = ctx->Color.BlendEnabled; + if (ctx->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, GL_FALSE); + } + } + else { + _mesa_set_enable(ctx, GL_BLEND, GL_FALSE); + } + } + save->ColorLogicOpEnabled = ctx->Color.ColorLogicOpEnabled; + if (ctx->Color.ColorLogicOpEnabled) + _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, GL_FALSE); + } + + if (state & META_COLOR_MASK) { + memcpy(save->ColorMask, ctx->Color.ColorMask, + sizeof(ctx->Color.ColorMask)); + if (!ctx->Color.ColorMask[0][0] || + !ctx->Color.ColorMask[0][1] || + !ctx->Color.ColorMask[0][2] || + !ctx->Color.ColorMask[0][3]) + _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + } + + if (state & META_DEPTH_TEST) { + save->Depth = ctx->Depth; /* struct copy */ + if (ctx->Depth.Test) + _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_FALSE); + } + + if (state & META_FOG) { + save->Fog = ctx->Fog.Enabled; + if (ctx->Fog.Enabled) + _mesa_set_enable(ctx, GL_FOG, GL_FALSE); + } + + if (state & META_PIXEL_STORE) { + save->Pack = ctx->Pack; + save->Unpack = ctx->Unpack; + ctx->Pack = ctx->DefaultPacking; + ctx->Unpack = ctx->DefaultPacking; + } + + if (state & META_PIXEL_TRANSFER) { + save->RedScale = ctx->Pixel.RedScale; + save->RedBias = ctx->Pixel.RedBias; + save->GreenScale = ctx->Pixel.GreenScale; + save->GreenBias = ctx->Pixel.GreenBias; + save->BlueScale = ctx->Pixel.BlueScale; + save->BlueBias = ctx->Pixel.BlueBias; + save->AlphaScale = ctx->Pixel.AlphaScale; + save->AlphaBias = ctx->Pixel.AlphaBias; + save->MapColorFlag = ctx->Pixel.MapColorFlag; + 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; + ctx->Pixel.MapColorFlag = GL_FALSE; + /* XXX more state */ + ctx->NewState |=_NEW_PIXEL; + } + + if (state & META_RASTERIZATION) { + save->FrontPolygonMode = ctx->Polygon.FrontMode; + save->BackPolygonMode = ctx->Polygon.BackMode; + save->PolygonOffset = ctx->Polygon.OffsetFill; + save->PolygonSmooth = ctx->Polygon.SmoothFlag; + save->PolygonStipple = ctx->Polygon.StippleFlag; + save->PolygonCull = ctx->Polygon.CullFlag; + _mesa_PolygonMode(GL_FRONT_AND_BACK, GL_FILL); + _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, GL_FALSE); + _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, GL_FALSE); + _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, GL_FALSE); + _mesa_set_enable(ctx, GL_CULL_FACE, GL_FALSE); + } + + if (state & META_SCISSOR) { + save->Scissor = ctx->Scissor; /* struct copy */ + _mesa_set_enable(ctx, GL_SCISSOR_TEST, GL_FALSE); + } + + if (state & META_SHADER) { + if (ctx->Extensions.ARB_vertex_program) { + save->VertexProgramEnabled = ctx->VertexProgram.Enabled; + _mesa_reference_vertprog(ctx, &save->VertexProgram, + ctx->VertexProgram.Current); + _mesa_set_enable(ctx, GL_VERTEX_PROGRAM_ARB, GL_FALSE); + } + + if (ctx->Extensions.ARB_fragment_program) { + save->FragmentProgramEnabled = ctx->FragmentProgram.Enabled; + _mesa_reference_fragprog(ctx, &save->FragmentProgram, + ctx->FragmentProgram.Current); + _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_FALSE); + } + + if (ctx->Extensions.ARB_shader_objects) { + _mesa_reference_shader_program(ctx, &save->VertexShader, + ctx->Shader.CurrentVertexProgram); + _mesa_reference_shader_program(ctx, &save->GeometryShader, + ctx->Shader.CurrentGeometryProgram); + _mesa_reference_shader_program(ctx, &save->FragmentShader, + ctx->Shader.CurrentFragmentProgram); + _mesa_reference_shader_program(ctx, &save->ActiveShader, + ctx->Shader.CurrentFragmentProgram); + + _mesa_UseProgramObjectARB(0); + } + } + + if (state & META_STENCIL_TEST) { + save->Stencil = ctx->Stencil; /* struct copy */ + if (ctx->Stencil.Enabled) + _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_FALSE); + /* NOTE: other stencil state not reset */ + } + + if (state & META_TEXTURE) { + GLuint u, tgt; + + save->ActiveUnit = ctx->Texture.CurrentUnit; + save->ClientActiveUnit = ctx->Array.ActiveTexture; + save->EnvMode = ctx->Texture.Unit[0].EnvMode; + + /* Disable all texture units */ + for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { + save->TexEnabled[u] = ctx->Texture.Unit[u].Enabled; + save->TexGenEnabled[u] = ctx->Texture.Unit[u].TexGenEnabled; + if (ctx->Texture.Unit[u].Enabled || + ctx->Texture.Unit[u].TexGenEnabled) { + _mesa_ActiveTextureARB(GL_TEXTURE0 + u); + _mesa_set_enable(ctx, GL_TEXTURE_1D, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_2D, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_3D, GL_FALSE); + if (ctx->Extensions.ARB_texture_cube_map) + _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_FALSE); + _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_FALSE); + } + } + + /* save current texture objects for unit[0] only */ + for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { + _mesa_reference_texobj(&save->CurrentTexture[tgt], + ctx->Texture.Unit[0].CurrentTex[tgt]); + } + + /* set defaults for unit[0] */ + _mesa_ActiveTextureARB(GL_TEXTURE0); + _mesa_ClientActiveTextureARB(GL_TEXTURE0); + _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + } + + if (state & META_TRANSFORM) { + GLuint activeTexture = ctx->Texture.CurrentUnit; + memcpy(save->ModelviewMatrix, ctx->ModelviewMatrixStack.Top->m, + 16 * sizeof(GLfloat)); + memcpy(save->ProjectionMatrix, ctx->ProjectionMatrixStack.Top->m, + 16 * sizeof(GLfloat)); + memcpy(save->TextureMatrix, ctx->TextureMatrixStack[0].Top->m, + 16 * sizeof(GLfloat)); + save->MatrixMode = ctx->Transform.MatrixMode; + /* set 1:1 vertex:pixel coordinate transform */ + _mesa_ActiveTextureARB(GL_TEXTURE0); + _mesa_MatrixMode(GL_TEXTURE); + _mesa_LoadIdentity(); + _mesa_ActiveTextureARB(GL_TEXTURE0 + activeTexture); + _mesa_MatrixMode(GL_MODELVIEW); + _mesa_LoadIdentity(); + _mesa_MatrixMode(GL_PROJECTION); + _mesa_LoadIdentity(); + _mesa_Ortho(0.0, ctx->DrawBuffer->Width, + 0.0, ctx->DrawBuffer->Height, + -1.0, 1.0); + save->ClipPlanesEnabled = ctx->Transform.ClipPlanesEnabled; + if (ctx->Transform.ClipPlanesEnabled) { + GLuint i; + for (i = 0; i < ctx->Const.MaxClipPlanes; i++) { + _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_FALSE); + } + } + } + + if (state & META_VERTEX) { + /* save vertex array object state */ + _mesa_reference_array_object(ctx, &save->ArrayObj, + ctx->Array.ArrayObj); + _mesa_reference_buffer_object(ctx, &save->ArrayBufferObj, + ctx->Array.ArrayBufferObj); + /* set some default state? */ + } + + if (state & META_VIEWPORT) { + /* save viewport state */ + save->ViewportX = ctx->Viewport.X; + save->ViewportY = ctx->Viewport.Y; + save->ViewportW = ctx->Viewport.Width; + save->ViewportH = ctx->Viewport.Height; + /* set viewport to match window size */ + if (ctx->Viewport.X != 0 || + ctx->Viewport.Y != 0 || + ctx->Viewport.Width != ctx->DrawBuffer->Width || + ctx->Viewport.Height != ctx->DrawBuffer->Height) { + _mesa_set_viewport(ctx, 0, 0, + ctx->DrawBuffer->Width, ctx->DrawBuffer->Height); + } + /* save depth range state */ + save->DepthNear = ctx->Viewport.Near; + save->DepthFar = ctx->Viewport.Far; + /* set depth range to default */ + _mesa_DepthRange(0.0, 1.0); + } + + if (state & META_CLAMP_FRAGMENT_COLOR) { + save->ClampFragmentColor = ctx->Color.ClampFragmentColor; + + /* Generally in here we want to do clamping according to whether + * it's for the pixel path (ClampFragmentColor is GL_TRUE), + * regardless of the internal implementation of the metaops. + */ + if (ctx->Color.ClampFragmentColor != GL_TRUE) + _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE); + } + + if (state & META_CLAMP_VERTEX_COLOR) { + save->ClampVertexColor = ctx->Light.ClampVertexColor; + + /* Generally in here we never want vertex color clamping -- + * result clamping is only dependent on fragment clamping. + */ + _mesa_ClampColorARB(GL_CLAMP_VERTEX_COLOR, GL_FALSE); + } + + if (state & META_CONDITIONAL_RENDER) { + save->CondRenderQuery = ctx->Query.CondRenderQuery; + save->CondRenderMode = ctx->Query.CondRenderMode; + + if (ctx->Query.CondRenderQuery) + _mesa_EndConditionalRender(); + } + + /* misc */ + { + save->Lighting = ctx->Light.Enabled; + if (ctx->Light.Enabled) + _mesa_set_enable(ctx, GL_LIGHTING, GL_FALSE); + } +} + + +/** + * Leave meta state. This is like a light-weight version of glPopAttrib(). + */ +static void +_mesa_meta_end(struct gl_context *ctx) +{ + struct save_state *save = &ctx->Meta->Save[--ctx->Meta->SaveStackDepth]; + const GLbitfield state = save->SavedState; + + if (state & META_ALPHA_TEST) { + if (ctx->Color.AlphaEnabled != save->AlphaEnabled) + _mesa_set_enable(ctx, GL_ALPHA_TEST, save->AlphaEnabled); + _mesa_AlphaFunc(save->AlphaFunc, save->AlphaRef); + } + + if (state & META_BLEND) { + if (ctx->Color.BlendEnabled != save->BlendEnabled) { + if (ctx->Extensions.EXT_draw_buffers2) { + GLuint i; + for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { + _mesa_set_enablei(ctx, GL_BLEND, i, (save->BlendEnabled >> i) & 1); + } + } + else { + _mesa_set_enable(ctx, GL_BLEND, (save->BlendEnabled & 1)); + } + } + if (ctx->Color.ColorLogicOpEnabled != save->ColorLogicOpEnabled) + _mesa_set_enable(ctx, GL_COLOR_LOGIC_OP, save->ColorLogicOpEnabled); + } + + if (state & META_COLOR_MASK) { + GLuint i; + for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) { + if (!TEST_EQ_4V(ctx->Color.ColorMask[i], save->ColorMask[i])) { + if (i == 0) { + _mesa_ColorMask(save->ColorMask[i][0], save->ColorMask[i][1], + save->ColorMask[i][2], save->ColorMask[i][3]); + } + else { + _mesa_ColorMaskIndexed(i, + save->ColorMask[i][0], + save->ColorMask[i][1], + save->ColorMask[i][2], + save->ColorMask[i][3]); + } + } + } + } + + if (state & META_DEPTH_TEST) { + if (ctx->Depth.Test != save->Depth.Test) + _mesa_set_enable(ctx, GL_DEPTH_TEST, save->Depth.Test); + _mesa_DepthFunc(save->Depth.Func); + _mesa_DepthMask(save->Depth.Mask); + } + + if (state & META_FOG) { + _mesa_set_enable(ctx, GL_FOG, save->Fog); + } + + if (state & META_PIXEL_STORE) { + ctx->Pack = save->Pack; + ctx->Unpack = save->Unpack; + } + + if (state & META_PIXEL_TRANSFER) { + ctx->Pixel.RedScale = save->RedScale; + ctx->Pixel.RedBias = save->RedBias; + ctx->Pixel.GreenScale = save->GreenScale; + ctx->Pixel.GreenBias = save->GreenBias; + ctx->Pixel.BlueScale = save->BlueScale; + ctx->Pixel.BlueBias = save->BlueBias; + ctx->Pixel.AlphaScale = save->AlphaScale; + ctx->Pixel.AlphaBias = save->AlphaBias; + ctx->Pixel.MapColorFlag = save->MapColorFlag; + /* XXX more state */ + ctx->NewState |=_NEW_PIXEL; + } + + if (state & META_RASTERIZATION) { + _mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode); + _mesa_PolygonMode(GL_BACK, save->BackPolygonMode); + _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, save->PolygonStipple); + _mesa_set_enable(ctx, GL_POLYGON_OFFSET_FILL, save->PolygonOffset); + _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, save->PolygonSmooth); + _mesa_set_enable(ctx, GL_CULL_FACE, save->PolygonCull); + } + + if (state & META_SCISSOR) { + _mesa_set_enable(ctx, GL_SCISSOR_TEST, save->Scissor.Enabled); + _mesa_Scissor(save->Scissor.X, save->Scissor.Y, + save->Scissor.Width, save->Scissor.Height); + } + + if (state & META_SHADER) { + if (ctx->Extensions.ARB_vertex_program) { + _mesa_set_enable(ctx, GL_VERTEX_PROGRAM_ARB, + save->VertexProgramEnabled); + _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, + save->VertexProgram); + _mesa_reference_vertprog(ctx, &save->VertexProgram, NULL); + } + + if (ctx->Extensions.ARB_fragment_program) { + _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, + save->FragmentProgramEnabled); + _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, + save->FragmentProgram); + _mesa_reference_fragprog(ctx, &save->FragmentProgram, NULL); + } + + if (ctx->Extensions.ARB_vertex_shader) + _mesa_use_shader_program(ctx, GL_VERTEX_SHADER, save->VertexShader); + + if (ctx->Extensions.ARB_geometry_shader4) + _mesa_use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, + save->GeometryShader); + + if (ctx->Extensions.ARB_fragment_shader) + _mesa_use_shader_program(ctx, GL_FRAGMENT_SHADER, + save->FragmentShader); + + _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, + save->ActiveShader); + } + + if (state & META_STENCIL_TEST) { + const struct gl_stencil_attrib *stencil = &save->Stencil; + + _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]); + } + + if (state & META_TEXTURE) { + GLuint u, tgt; + + ASSERT(ctx->Texture.CurrentUnit == 0); + + /* restore texenv for unit[0] */ + _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, save->EnvMode); + + /* restore texture objects for unit[0] only */ + for (tgt = 0; tgt < NUM_TEXTURE_TARGETS; tgt++) { + _mesa_reference_texobj(&ctx->Texture.Unit[0].CurrentTex[tgt], + save->CurrentTexture[tgt]); + _mesa_reference_texobj(&save->CurrentTexture[tgt], NULL); + } + + /* Re-enable textures, texgen */ + for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { + if (save->TexEnabled[u]) { + _mesa_ActiveTextureARB(GL_TEXTURE0 + u); + + if (save->TexEnabled[u] & TEXTURE_1D_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_1D, GL_TRUE); + if (save->TexEnabled[u] & TEXTURE_2D_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_2D, GL_TRUE); + if (save->TexEnabled[u] & TEXTURE_3D_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_3D, GL_TRUE); + if (save->TexEnabled[u] & TEXTURE_CUBE_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_TRUE); + if (save->TexEnabled[u] & TEXTURE_RECT_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_TRUE); + } + + if (save->TexGenEnabled[u]) { + _mesa_ActiveTextureARB(GL_TEXTURE0 + u); + + if (save->TexGenEnabled[u] & S_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_TRUE); + if (save->TexGenEnabled[u] & T_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_TRUE); + if (save->TexGenEnabled[u] & R_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_GEN_R, GL_TRUE); + if (save->TexGenEnabled[u] & Q_BIT) + _mesa_set_enable(ctx, GL_TEXTURE_GEN_Q, GL_TRUE); + } + } + + /* restore current unit state */ + _mesa_ActiveTextureARB(GL_TEXTURE0 + save->ActiveUnit); + _mesa_ClientActiveTextureARB(GL_TEXTURE0 + save->ClientActiveUnit); + } + + if (state & META_TRANSFORM) { + GLuint activeTexture = ctx->Texture.CurrentUnit; + _mesa_ActiveTextureARB(GL_TEXTURE0); + _mesa_MatrixMode(GL_TEXTURE); + _mesa_LoadMatrixf(save->TextureMatrix); + _mesa_ActiveTextureARB(GL_TEXTURE0 + activeTexture); + + _mesa_MatrixMode(GL_MODELVIEW); + _mesa_LoadMatrixf(save->ModelviewMatrix); + + _mesa_MatrixMode(GL_PROJECTION); + _mesa_LoadMatrixf(save->ProjectionMatrix); + + _mesa_MatrixMode(save->MatrixMode); + + if (save->ClipPlanesEnabled) { + GLuint i; + for (i = 0; i < ctx->Const.MaxClipPlanes; i++) { + if (save->ClipPlanesEnabled & (1 << i)) { + _mesa_set_enable(ctx, GL_CLIP_PLANE0 + i, GL_TRUE); + } + } + } + } + + if (state & META_VERTEX) { + /* restore vertex buffer object */ + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, save->ArrayBufferObj->Name); + _mesa_reference_buffer_object(ctx, &save->ArrayBufferObj, NULL); + + /* restore vertex array object */ + _mesa_BindVertexArray(save->ArrayObj->Name); + _mesa_reference_array_object(ctx, &save->ArrayObj, NULL); + } + + if (state & META_VIEWPORT) { + if (save->ViewportX != ctx->Viewport.X || + save->ViewportY != ctx->Viewport.Y || + save->ViewportW != ctx->Viewport.Width || + save->ViewportH != ctx->Viewport.Height) { + _mesa_set_viewport(ctx, save->ViewportX, save->ViewportY, + save->ViewportW, save->ViewportH); + } + _mesa_DepthRange(save->DepthNear, save->DepthFar); + } + + if (state & META_CLAMP_FRAGMENT_COLOR) { + _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, save->ClampFragmentColor); + } + + if (state & META_CLAMP_VERTEX_COLOR) { + _mesa_ClampColorARB(GL_CLAMP_VERTEX_COLOR, save->ClampVertexColor); + } + + if (state & META_CONDITIONAL_RENDER) { + if (save->CondRenderQuery) + _mesa_BeginConditionalRender(save->CondRenderQuery->Id, + save->CondRenderMode); + } + + /* misc */ + if (save->Lighting) { + _mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE); + } +} + + +/** + * Convert Z from a normalized value in the range [0, 1] to an object-space + * Z coordinate in [-1, +1] so that drawing at the new Z position with the + * default/identity ortho projection results in the original Z value. + * Used by the meta-Clear, Draw/CopyPixels and Bitmap functions where the Z + * value comes from the clear value or raster position. + */ +static INLINE GLfloat +invert_z(GLfloat normZ) +{ + GLfloat objZ = 1.0 - 2.0 * normZ; + return objZ; +} + + +/** + * One-time init for a temp_texture object. + * Choose tex target, compute max tex size, etc. + */ +static void +init_temp_texture(struct gl_context *ctx, struct temp_texture *tex) +{ + /* prefer texture rectangle */ + if (ctx->Extensions.NV_texture_rectangle) { + tex->Target = GL_TEXTURE_RECTANGLE; + tex->MaxSize = ctx->Const.MaxTextureRectSize; + tex->NPOT = GL_TRUE; + } + else { + /* use 2D texture, NPOT if possible */ + tex->Target = GL_TEXTURE_2D; + tex->MaxSize = 1 << (ctx->Const.MaxTextureLevels - 1); + tex->NPOT = ctx->Extensions.ARB_texture_non_power_of_two; + } + tex->MinSize = 16; /* 16 x 16 at least */ + assert(tex->MaxSize > 0); + + _mesa_GenTextures(1, &tex->TexObj); +} + + +/** + * Return pointer to temp_texture info for non-bitmap ops. + * This does some one-time init if needed. + */ +static struct temp_texture * +get_temp_texture(struct gl_context *ctx) +{ + struct temp_texture *tex = &ctx->Meta->TempTex; + + if (!tex->TexObj) { + init_temp_texture(ctx, tex); + } + + return tex; +} + + +/** + * Return pointer to temp_texture info for _mesa_meta_bitmap(). + * We use a separate texture for bitmaps to reduce texture + * allocation/deallocation. + */ +static struct temp_texture * +get_bitmap_temp_texture(struct gl_context *ctx) +{ + struct temp_texture *tex = &ctx->Meta->Bitmap.Tex; + + if (!tex->TexObj) { + init_temp_texture(ctx, tex); + } + + return tex; +} + + +/** + * Compute the width/height of texture needed to draw an image of the + * given size. Return a flag indicating whether the current texture + * can be re-used (glTexSubImage2D) or if a new texture needs to be + * allocated (glTexImage2D). + * Also, compute s/t texcoords for drawing. + * + * \return GL_TRUE if new texture is needed, GL_FALSE otherwise + */ +static GLboolean +alloc_texture(struct temp_texture *tex, + GLsizei width, GLsizei height, GLenum intFormat) +{ + GLboolean newTex = GL_FALSE; + + ASSERT(width <= tex->MaxSize); + ASSERT(height <= tex->MaxSize); + + if (width > tex->Width || + height > tex->Height || + intFormat != tex->IntFormat) { + /* alloc new texture (larger or different format) */ + + if (tex->NPOT) { + /* use non-power of two size */ + tex->Width = MAX2(tex->MinSize, width); + tex->Height = MAX2(tex->MinSize, height); + } + else { + /* find power of two size */ + GLsizei w, h; + w = h = tex->MinSize; + while (w < width) + w *= 2; + while (h < height) + h *= 2; + tex->Width = w; + tex->Height = h; + } + + tex->IntFormat = intFormat; + + newTex = GL_TRUE; + } + + /* compute texcoords */ + if (tex->Target == GL_TEXTURE_RECTANGLE) { + tex->Sright = (GLfloat) width; + tex->Ttop = (GLfloat) height; + } + else { + tex->Sright = (GLfloat) width / tex->Width; + tex->Ttop = (GLfloat) height / tex->Height; + } + + return newTex; +} + + +/** + * Setup/load texture for glCopyPixels or glBlitFramebuffer. + */ +static void +setup_copypix_texture(struct temp_texture *tex, + GLboolean newTex, + GLint srcX, GLint srcY, + GLsizei width, GLsizei height, GLenum intFormat, + GLenum filter) +{ + _mesa_BindTexture(tex->Target, tex->TexObj); + _mesa_TexParameteri(tex->Target, GL_TEXTURE_MIN_FILTER, filter); + _mesa_TexParameteri(tex->Target, GL_TEXTURE_MAG_FILTER, filter); + _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + + /* copy framebuffer image to texture */ + if (newTex) { + /* create new tex image */ + if (tex->Width == width && tex->Height == height) { + /* create new tex with framebuffer data */ + _mesa_CopyTexImage2D(tex->Target, 0, tex->IntFormat, + srcX, srcY, width, height, 0); + } + else { + /* create empty texture */ + _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, + tex->Width, tex->Height, 0, + intFormat, GL_UNSIGNED_BYTE, NULL); + /* load image */ + _mesa_CopyTexSubImage2D(tex->Target, 0, + 0, 0, srcX, srcY, width, height); + } + } + else { + /* replace existing tex image */ + _mesa_CopyTexSubImage2D(tex->Target, 0, + 0, 0, srcX, srcY, width, height); + } +} + + +/** + * Setup/load texture for glDrawPixels. + */ +static void +setup_drawpix_texture(struct gl_context *ctx, + struct temp_texture *tex, + GLboolean newTex, + GLenum texIntFormat, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const GLvoid *pixels) +{ + _mesa_BindTexture(tex->Target, tex->TexObj); + _mesa_TexParameteri(tex->Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + _mesa_TexParameteri(tex->Target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + + /* copy pixel data to texture */ + if (newTex) { + /* create new tex image */ + if (tex->Width == width && tex->Height == height) { + /* create new tex and load image data */ + _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, + tex->Width, tex->Height, 0, format, type, pixels); + } + else { + struct gl_buffer_object *save_unpack_obj = NULL; + + _mesa_reference_buffer_object(ctx, &save_unpack_obj, + ctx->Unpack.BufferObj); + _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0); + /* create empty texture */ + _mesa_TexImage2D(tex->Target, 0, tex->IntFormat, + tex->Width, tex->Height, 0, format, type, NULL); + if (save_unpack_obj != NULL) + _mesa_BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, + save_unpack_obj->Name); + /* load image */ + _mesa_TexSubImage2D(tex->Target, 0, + 0, 0, width, height, format, type, pixels); + } + } + else { + /* replace existing tex image */ + _mesa_TexSubImage2D(tex->Target, 0, + 0, 0, width, height, format, type, pixels); + } +} + + + +/** + * One-time init for drawing depth pixels. + */ +static void +init_blit_depth_pixels(struct gl_context *ctx) +{ + static const char *program = + "!!ARBfp1.0\n" + "TEX result.depth, fragment.texcoord[0], texture[0], %s; \n" + "END \n"; + char program2[200]; + struct blit_state *blit = &ctx->Meta->Blit; + struct temp_texture *tex = get_temp_texture(ctx); + const char *texTarget; + + assert(blit->DepthFP == 0); + + /* replace %s with "RECT" or "2D" */ + assert(strlen(program) + 4 < sizeof(program2)); + if (tex->Target == GL_TEXTURE_RECTANGLE) + texTarget = "RECT"; + else + texTarget = "2D"; + _mesa_snprintf(program2, sizeof(program2), program, texTarget); + + _mesa_GenPrograms(1, &blit->DepthFP); + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP); + _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(program2), (const GLubyte *) program2); +} + + +/** + * Try to do a glBlitFramebuffer using no-copy texturing. + * We can do this when the src renderbuffer is actually a texture. + * But if the src buffer == dst buffer we cannot do this. + * + * \return new buffer mask indicating the buffers left to blit using the + * normal path. + */ +static GLbitfield +blitframebuffer_texture(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + if (mask & GL_COLOR_BUFFER_BIT) { + const struct gl_framebuffer *drawFb = ctx->DrawBuffer; + const struct gl_framebuffer *readFb = ctx->ReadBuffer; + const struct gl_renderbuffer_attachment *drawAtt = + &drawFb->Attachment[drawFb->_ColorDrawBufferIndexes[0]]; + const struct gl_renderbuffer_attachment *readAtt = + &readFb->Attachment[readFb->_ColorReadBufferIndex]; + + if (readAtt && readAtt->Texture) { + const struct gl_texture_object *texObj = readAtt->Texture; + const GLuint srcLevel = readAtt->TextureLevel; + const GLenum minFilterSave = texObj->Sampler.MinFilter; + const GLenum magFilterSave = texObj->Sampler.MagFilter; + const GLint baseLevelSave = texObj->BaseLevel; + const GLint maxLevelSave = texObj->MaxLevel; + const GLenum wrapSSave = texObj->Sampler.WrapS; + const GLenum wrapTSave = texObj->Sampler.WrapT; + const GLenum target = texObj->Target; + + if (drawAtt->Texture == readAtt->Texture) { + /* Can't use same texture as both the source and dest. We need + * to handle overlapping blits and besides, some hw may not + * support this. + */ + return mask; + } + + if (target != GL_TEXTURE_2D && target != GL_TEXTURE_RECTANGLE_ARB) { + /* Can't handle other texture types at this time */ + return mask; + } + + /* + printf("Blit from texture!\n"); + printf(" srcAtt %p dstAtt %p\n", readAtt, drawAtt); + printf(" srcTex %p dstText %p\n", texObj, drawAtt->Texture); + */ + + /* Prepare src texture state */ + _mesa_BindTexture(target, texObj->Name); + _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter); + _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter); + if (target != GL_TEXTURE_RECTANGLE_ARB) { + _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, srcLevel); + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel); + } + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + _mesa_TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + _mesa_set_enable(ctx, target, GL_TRUE); + + /* Prepare vertex data (the VBO was previously created and bound) */ + { + struct vertex { + GLfloat x, y, s, t; + }; + struct vertex verts[4]; + GLfloat s0, t0, s1, t1; + + if (target == GL_TEXTURE_2D) { + const struct gl_texture_image *texImage + = _mesa_select_tex_image(ctx, texObj, target, srcLevel); + s0 = srcX0 / (float) texImage->Width; + s1 = srcX1 / (float) texImage->Width; + t0 = srcY0 / (float) texImage->Height; + t1 = srcY1 / (float) texImage->Height; + } + else { + assert(target == GL_TEXTURE_RECTANGLE_ARB); + s0 = srcX0; + s1 = srcX1; + t0 = srcY0; + t1 = srcY1; + } + + verts[0].x = (GLfloat) dstX0; + verts[0].y = (GLfloat) dstY0; + verts[1].x = (GLfloat) dstX1; + verts[1].y = (GLfloat) dstY0; + verts[2].x = (GLfloat) dstX1; + verts[2].y = (GLfloat) dstY1; + verts[3].x = (GLfloat) dstX0; + verts[3].y = (GLfloat) dstY1; + + verts[0].s = s0; + verts[0].t = t0; + verts[1].s = s1; + verts[1].t = t0; + verts[2].s = s1; + verts[2].t = t1; + verts[3].s = s0; + verts[3].t = t1; + + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + /* Restore texture object state, the texture binding will + * be restored by _mesa_meta_end(). + */ + _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave); + _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave); + if (target != GL_TEXTURE_RECTANGLE_ARB) { + _mesa_TexParameteri(target, GL_TEXTURE_BASE_LEVEL, baseLevelSave); + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave); + } + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave); + + /* Done with color buffer */ + mask &= ~GL_COLOR_BUFFER_BIT; + } + } + + return mask; +} + + +/** + * Meta implementation of ctx->Driver.BlitFramebuffer() in terms + * of texture mapping and polygon rendering. + */ +void +_mesa_meta_BlitFramebuffer(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + struct blit_state *blit = &ctx->Meta->Blit; + struct temp_texture *tex = get_temp_texture(ctx); + const GLsizei maxTexSize = tex->MaxSize; + const GLint srcX = MIN2(srcX0, srcX1); + const GLint srcY = MIN2(srcY0, srcY1); + const GLint srcW = abs(srcX1 - srcX0); + const GLint srcH = abs(srcY1 - srcY0); + const GLboolean srcFlipX = srcX1 < srcX0; + const GLboolean srcFlipY = srcY1 < srcY0; + struct vertex { + GLfloat x, y, s, t; + }; + struct vertex verts[4]; + GLboolean newTex; + + if (srcW > maxTexSize || srcH > maxTexSize) { + /* XXX avoid this fallback */ + _swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, mask, filter); + return; + } + + if (srcFlipX) { + GLint tmp = dstX0; + dstX0 = dstX1; + dstX1 = tmp; + } + + if (srcFlipY) { + GLint tmp = dstY0; + dstY0 = dstY1; + dstY1 = tmp; + } + + /* only scissor effects blit so save/clear all other relevant state */ + _mesa_meta_begin(ctx, ~META_SCISSOR); + + if (blit->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArrays(1, &blit->ArrayObj); + _mesa_BindVertexArray(blit->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &blit->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, blit->VBO); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + NULL, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + } + else { + _mesa_BindVertexArray(blit->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, blit->VBO); + } + + /* Try faster, direct texture approach first */ + mask = blitframebuffer_texture(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, mask, filter); + if (mask == 0x0) { + _mesa_meta_end(ctx); + return; + } + + /* Continue with "normal" approach which involves copying the src rect + * into a temporary texture and is "blitted" by drawing a textured quad. + */ + + newTex = alloc_texture(tex, srcW, srcH, GL_RGBA); + + /* vertex positions/texcoords (after texture allocation!) */ + { + verts[0].x = (GLfloat) dstX0; + verts[0].y = (GLfloat) dstY0; + verts[1].x = (GLfloat) dstX1; + verts[1].y = (GLfloat) dstY0; + verts[2].x = (GLfloat) dstX1; + verts[2].y = (GLfloat) dstY1; + verts[3].x = (GLfloat) dstX0; + verts[3].y = (GLfloat) dstY1; + + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + _mesa_set_enable(ctx, tex->Target, GL_TRUE); + + if (mask & GL_COLOR_BUFFER_BIT) { + setup_copypix_texture(tex, newTex, srcX, srcY, srcW, srcH, + GL_RGBA, filter); + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + mask &= ~GL_COLOR_BUFFER_BIT; + } + + if (mask & GL_DEPTH_BUFFER_BIT) { + GLuint *tmp = (GLuint *) malloc(srcW * srcH * sizeof(GLuint)); + if (tmp) { + if (!blit->DepthFP) + init_blit_depth_pixels(ctx); + + /* maybe change tex format here */ + newTex = alloc_texture(tex, srcW, srcH, GL_DEPTH_COMPONENT); + + _mesa_ReadPixels(srcX, srcY, srcW, srcH, + GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); + + setup_drawpix_texture(ctx, tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH, + GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp); + + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP); + _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); + _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); + _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_TRUE); + _mesa_DepthFunc(GL_ALWAYS); + _mesa_DepthMask(GL_TRUE); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + mask &= ~GL_DEPTH_BUFFER_BIT; + + free(tmp); + } + } + + if (mask & GL_STENCIL_BUFFER_BIT) { + /* XXX can't easily do stencil */ + } + + _mesa_set_enable(ctx, tex->Target, GL_FALSE); + + _mesa_meta_end(ctx); + + if (mask) { + _swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, mask, filter); + } +} + + +/** + * Meta implementation of ctx->Driver.Clear() in terms of polygon rendering. + */ +void +_mesa_meta_Clear(struct gl_context *ctx, GLbitfield buffers) +{ + struct clear_state *clear = &ctx->Meta->Clear; + struct vertex { + GLfloat x, y, z, r, g, b, a; + }; + struct vertex verts[4]; + /* save all state but scissor, pixel pack/unpack */ + GLbitfield metaSave = (META_ALL - + META_SCISSOR - + META_PIXEL_STORE - + META_CONDITIONAL_RENDER); + const GLuint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1; + + if (buffers & BUFFER_BITS_COLOR) { + /* if clearing color buffers, don't save/restore colormask */ + metaSave -= META_COLOR_MASK; + } + + _mesa_meta_begin(ctx, metaSave); + + if (clear->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArrays(1, &clear->ArrayObj); + _mesa_BindVertexArray(clear->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &clear->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO); + + /* setup vertex arrays */ + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_COLOR_ARRAY); + } + else { + _mesa_BindVertexArray(clear->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, clear->VBO); + } + + /* GL_COLOR_BUFFER_BIT */ + if (buffers & BUFFER_BITS_COLOR) { + /* leave colormask, glDrawBuffer state as-is */ + + /* Clears never have the color clamped. */ + _mesa_ClampColorARB(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE); + } + else { + ASSERT(metaSave & META_COLOR_MASK); + _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); + } + + /* GL_DEPTH_BUFFER_BIT */ + if (buffers & BUFFER_BIT_DEPTH) { + _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_TRUE); + _mesa_DepthFunc(GL_ALWAYS); + _mesa_DepthMask(GL_TRUE); + } + else { + assert(!ctx->Depth.Test); + } + + /* GL_STENCIL_BUFFER_BIT */ + if (buffers & BUFFER_BIT_STENCIL) { + _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_TRUE); + _mesa_StencilOpSeparate(GL_FRONT_AND_BACK, + GL_REPLACE, GL_REPLACE, GL_REPLACE); + _mesa_StencilFuncSeparate(GL_FRONT_AND_BACK, GL_ALWAYS, + ctx->Stencil.Clear & stencilMax, + ctx->Stencil.WriteMask[0]); + } + else { + assert(!ctx->Stencil.Enabled); + } + + /* vertex positions/colors */ + { + const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin; + const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin; + const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax; + const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax; + const GLfloat z = invert_z(ctx->Depth.Clear); + GLuint i; + + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; + + /* vertex colors */ + for (i = 0; i < 4; i++) { + verts[i].r = ctx->Color.ClearColorUnclamped[0]; + verts[i].g = ctx->Color.ClearColorUnclamped[1]; + verts[i].b = ctx->Color.ClearColorUnclamped[2]; + verts[i].a = ctx->Color.ClearColorUnclamped[3]; + } + + /* upload new vertex data */ + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), verts, + GL_DYNAMIC_DRAW_ARB); + } + + /* draw quad */ + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + _mesa_meta_end(ctx); +} + + +/** + * Meta implementation of ctx->Driver.CopyPixels() in terms + * of texture mapping and polygon rendering. + */ +void +_mesa_meta_CopyPixels(struct gl_context *ctx, GLint srcX, GLint srcY, + GLsizei width, GLsizei height, + GLint dstX, GLint dstY, GLenum type) +{ + struct copypix_state *copypix = &ctx->Meta->CopyPix; + struct temp_texture *tex = get_temp_texture(ctx); + struct vertex { + GLfloat x, y, z, s, t; + }; + struct vertex verts[4]; + GLboolean newTex; + GLenum intFormat = GL_RGBA; + + if (type != GL_COLOR || + ctx->_ImageTransferState || + ctx->Fog.Enabled || + width > tex->MaxSize || + height > tex->MaxSize) { + /* XXX avoid this fallback */ + _swrast_CopyPixels(ctx, srcX, srcY, width, height, dstX, dstY, type); + return; + } + + /* Most GL state applies to glCopyPixels, but a there's a few things + * we need to override: + */ + _mesa_meta_begin(ctx, (META_RASTERIZATION | + META_SHADER | + META_TEXTURE | + META_TRANSFORM | + META_VERTEX | + META_VIEWPORT)); + + if (copypix->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArrays(1, ©pix->ArrayObj); + _mesa_BindVertexArray(copypix->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, ©pix->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, copypix->VBO); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + NULL, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + } + else { + _mesa_BindVertexArray(copypix->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, copypix->VBO); + } + + newTex = alloc_texture(tex, width, height, intFormat); + + /* vertex positions, texcoords (after texture allocation!) */ + { + const GLfloat dstX0 = (GLfloat) dstX; + const GLfloat dstY0 = (GLfloat) dstY; + const GLfloat dstX1 = dstX + width * ctx->Pixel.ZoomX; + const GLfloat dstY1 = dstY + height * ctx->Pixel.ZoomY; + const GLfloat z = invert_z(ctx->Current.RasterPos[2]); + + verts[0].x = dstX0; + verts[0].y = dstY0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = dstX1; + verts[1].y = dstY0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = dstX1; + verts[2].y = dstY1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = dstX0; + verts[3].y = dstY1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + /* Alloc/setup texture */ + setup_copypix_texture(tex, newTex, srcX, srcY, width, height, + GL_RGBA, GL_NEAREST); + + _mesa_set_enable(ctx, tex->Target, GL_TRUE); + + /* draw textured quad */ + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + _mesa_set_enable(ctx, tex->Target, GL_FALSE); + + _mesa_meta_end(ctx); +} + + + +/** + * When the glDrawPixels() image size is greater than the max rectangle + * texture size we use this function to break the glDrawPixels() image + * into tiles which fit into the max texture size. + */ +static void +tiled_draw_pixels(struct gl_context *ctx, + GLint tileSize, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct gl_pixelstore_attrib tileUnpack = *unpack; + GLint i, j; + + if (tileUnpack.RowLength == 0) + tileUnpack.RowLength = width; + + for (i = 0; i < width; i += tileSize) { + const GLint tileWidth = MIN2(tileSize, width - i); + const GLint tileX = (GLint) (x + i * ctx->Pixel.ZoomX); + + tileUnpack.SkipPixels = unpack->SkipPixels + i; + + for (j = 0; j < height; j += tileSize) { + const GLint tileHeight = MIN2(tileSize, height - j); + const GLint tileY = (GLint) (y + j * ctx->Pixel.ZoomY); + + tileUnpack.SkipRows = unpack->SkipRows + j; + + _mesa_meta_DrawPixels(ctx, tileX, tileY, tileWidth, tileHeight, + format, type, &tileUnpack, pixels); + } + } +} + + +/** + * One-time init for drawing stencil pixels. + */ +static void +init_draw_stencil_pixels(struct gl_context *ctx) +{ + /* This program is run eight times, once for each stencil bit. + * The stencil values to draw are found in an 8-bit alpha texture. + * We read the texture/stencil value and test if bit 'b' is set. + * If the bit is not set, use KIL to kill the fragment. + * Finally, we use the stencil test to update the stencil buffer. + * + * The basic algorithm for checking if a bit is set is: + * if (is_odd(value / (1 << bit))) + * result is one (or non-zero). + * else + * result is zero. + * The program parameter contains three values: + * parm.x = 255 / (1 << bit) + * parm.y = 0.5 + * parm.z = 0.0 + */ + static const char *program = + "!!ARBfp1.0\n" + "PARAM parm = program.local[0]; \n" + "TEMP t; \n" + "TEX t, fragment.texcoord[0], texture[0], %s; \n" /* NOTE %s here! */ + "# t = t * 255 / bit \n" + "MUL t.x, t.a, parm.x; \n" + "# t = (int) t \n" + "FRC t.y, t.x; \n" + "SUB t.x, t.x, t.y; \n" + "# t = t * 0.5 \n" + "MUL t.x, t.x, parm.y; \n" + "# t = fract(t.x) \n" + "FRC t.x, t.x; # if t.x != 0, then the bit is set \n" + "# t.x = (t.x == 0 ? 1 : 0) \n" + "SGE t.x, -t.x, parm.z; \n" + "KIL -t.x; \n" + "# for debug only \n" + "#MOV result.color, t.x; \n" + "END \n"; + char program2[1000]; + struct drawpix_state *drawpix = &ctx->Meta->DrawPix; + struct temp_texture *tex = get_temp_texture(ctx); + const char *texTarget; + + assert(drawpix->StencilFP == 0); + + /* replace %s with "RECT" or "2D" */ + assert(strlen(program) + 4 < sizeof(program2)); + if (tex->Target == GL_TEXTURE_RECTANGLE) + texTarget = "RECT"; + else + texTarget = "2D"; + _mesa_snprintf(program2, sizeof(program2), program, texTarget); + + _mesa_GenPrograms(1, &drawpix->StencilFP); + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->StencilFP); + _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(program2), (const GLubyte *) program2); +} + + +/** + * One-time init for drawing depth pixels. + */ +static void +init_draw_depth_pixels(struct gl_context *ctx) +{ + static const char *program = + "!!ARBfp1.0\n" + "PARAM color = program.local[0]; \n" + "TEX result.depth, fragment.texcoord[0], texture[0], %s; \n" + "MOV result.color, color; \n" + "END \n"; + char program2[200]; + struct drawpix_state *drawpix = &ctx->Meta->DrawPix; + struct temp_texture *tex = get_temp_texture(ctx); + const char *texTarget; + + assert(drawpix->DepthFP == 0); + + /* replace %s with "RECT" or "2D" */ + assert(strlen(program) + 4 < sizeof(program2)); + if (tex->Target == GL_TEXTURE_RECTANGLE) + texTarget = "RECT"; + else + texTarget = "2D"; + _mesa_snprintf(program2, sizeof(program2), program, texTarget); + + _mesa_GenPrograms(1, &drawpix->DepthFP); + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->DepthFP); + _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(program2), (const GLubyte *) program2); +} + + +/** + * Meta implementation of ctx->Driver.DrawPixels() in terms + * of texture mapping and polygon rendering. + */ +void +_mesa_meta_DrawPixels(struct gl_context *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct drawpix_state *drawpix = &ctx->Meta->DrawPix; + struct temp_texture *tex = get_temp_texture(ctx); + const struct gl_pixelstore_attrib unpackSave = ctx->Unpack; + const GLuint origStencilMask = ctx->Stencil.WriteMask[0]; + struct vertex { + GLfloat x, y, z, s, t; + }; + struct vertex verts[4]; + GLenum texIntFormat; + GLboolean fallback, newTex; + GLbitfield metaExtraSave = 0x0; + GLuint vbo; + + /* + * Determine if we can do the glDrawPixels with texture mapping. + */ + fallback = GL_FALSE; + if (ctx->_ImageTransferState || + ctx->Fog.Enabled) { + fallback = GL_TRUE; + } + + if (_mesa_is_color_format(format)) { + /* use more compact format when possible */ + /* XXX disable special case for GL_LUMINANCE for now to work around + * apparent i965 driver bug (see bug #23670). + */ + if (/*format == GL_LUMINANCE ||*/ format == GL_LUMINANCE_ALPHA) + texIntFormat = format; + else + texIntFormat = GL_RGBA; + + /* If we're not supposed to clamp the resulting color, then just + * promote our texture to fully float. We could do better by + * just going for the matching set of channels, in floating + * point. + */ + if (ctx->Color.ClampFragmentColor != GL_TRUE && + ctx->Extensions.ARB_texture_float) + texIntFormat = GL_RGBA32F; + } + else if (_mesa_is_stencil_format(format)) { + if (ctx->Extensions.ARB_fragment_program && + ctx->Pixel.IndexShift == 0 && + ctx->Pixel.IndexOffset == 0 && + type == GL_UNSIGNED_BYTE) { + /* We'll store stencil as alpha. This only works for GLubyte + * image data because of how incoming values are mapped to alpha + * in [0,1]. + */ + texIntFormat = GL_ALPHA; + metaExtraSave = (META_COLOR_MASK | + META_DEPTH_TEST | + META_SHADER | + META_STENCIL_TEST); + } + else { + fallback = GL_TRUE; + } + } + else if (_mesa_is_depth_format(format)) { + if (ctx->Extensions.ARB_depth_texture && + ctx->Extensions.ARB_fragment_program) { + texIntFormat = GL_DEPTH_COMPONENT; + metaExtraSave = (META_SHADER); + } + else { + fallback = GL_TRUE; + } + } + else { + fallback = GL_TRUE; + } + + if (fallback) { + _swrast_DrawPixels(ctx, x, y, width, height, + format, type, unpack, pixels); + return; + } + + /* + * Check image size against max texture size, draw as tiles if needed. + */ + if (width > tex->MaxSize || height > tex->MaxSize) { + tiled_draw_pixels(ctx, tex->MaxSize, x, y, width, height, + format, type, unpack, pixels); + return; + } + + /* Most GL state applies to glDrawPixels (like blending, stencil, etc), + * but a there's a few things we need to override: + */ + _mesa_meta_begin(ctx, (META_RASTERIZATION | + META_SHADER | + META_TEXTURE | + META_TRANSFORM | + META_VERTEX | + META_VIEWPORT | + META_CLAMP_FRAGMENT_COLOR | + metaExtraSave)); + + newTex = alloc_texture(tex, width, height, texIntFormat); + + /* vertex positions, texcoords (after texture allocation!) */ + { + const GLfloat x0 = (GLfloat) x; + const GLfloat y0 = (GLfloat) y; + const GLfloat x1 = x + width * ctx->Pixel.ZoomX; + const GLfloat y1 = y + height * ctx->Pixel.ZoomY; + const GLfloat z = invert_z(ctx->Current.RasterPos[2]); + + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; + } + + if (drawpix->ArrayObj == 0) { + /* one-time setup: create vertex array object */ + _mesa_GenVertexArrays(1, &drawpix->ArrayObj); + } + _mesa_BindVertexArray(drawpix->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &vbo); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, vbo); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + verts, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + + /* set given unpack params */ + ctx->Unpack = *unpack; + + _mesa_set_enable(ctx, tex->Target, GL_TRUE); + + if (_mesa_is_stencil_format(format)) { + /* Drawing stencil */ + GLint bit; + + if (!drawpix->StencilFP) + init_draw_stencil_pixels(ctx); + + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, + GL_ALPHA, type, pixels); + + _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); + + _mesa_set_enable(ctx, GL_STENCIL_TEST, GL_TRUE); + + /* set all stencil bits to 0 */ + _mesa_StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE); + _mesa_StencilFunc(GL_ALWAYS, 0, 255); + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + /* set stencil bits to 1 where needed */ + _mesa_StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE); + + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->StencilFP); + _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); + + for (bit = 0; bit < ctx->DrawBuffer->Visual.stencilBits; bit++) { + const GLuint mask = 1 << bit; + if (mask & origStencilMask) { + _mesa_StencilFunc(GL_ALWAYS, mask, mask); + _mesa_StencilMask(mask); + + _mesa_ProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 0, + 255.0 / mask, 0.5, 0.0, 0.0); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + } + } + } + else if (_mesa_is_depth_format(format)) { + /* Drawing depth */ + if (!drawpix->DepthFP) + init_draw_depth_pixels(ctx); + + _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, drawpix->DepthFP); + _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE); + + /* polygon color = current raster color */ + _mesa_ProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, + ctx->Current.RasterColor); + + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, + format, type, pixels); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + } + else { + /* Drawing RGBA */ + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, + format, type, pixels); + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + } + + _mesa_set_enable(ctx, tex->Target, GL_FALSE); + + _mesa_DeleteBuffersARB(1, &vbo); + + /* restore unpack params */ + ctx->Unpack = unpackSave; + + _mesa_meta_end(ctx); +} + +static GLboolean +alpha_test_raster_color(struct gl_context *ctx) +{ + GLfloat alpha = ctx->Current.RasterColor[ACOMP]; + GLfloat ref = ctx->Color.AlphaRef; + + switch (ctx->Color.AlphaFunc) { + case GL_NEVER: + return GL_FALSE; + case GL_LESS: + return alpha < ref; + case GL_EQUAL: + return alpha == ref; + case GL_LEQUAL: + return alpha <= ref; + case GL_GREATER: + return alpha > ref; + case GL_NOTEQUAL: + return alpha != ref; + case GL_GEQUAL: + return alpha >= ref; + case GL_ALWAYS: + return GL_TRUE; + default: + assert(0); + return GL_FALSE; + } +} + +/** + * Do glBitmap with a alpha texture quad. Use the alpha test to cull + * the 'off' bits. A bitmap cache as in the gallium/mesa state + * tracker would improve performance a lot. + */ +void +_mesa_meta_Bitmap(struct gl_context *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap1) +{ + struct bitmap_state *bitmap = &ctx->Meta->Bitmap; + struct temp_texture *tex = get_bitmap_temp_texture(ctx); + const GLenum texIntFormat = GL_ALPHA; + const struct gl_pixelstore_attrib unpackSave = *unpack; + GLubyte fg, bg; + struct vertex { + GLfloat x, y, z, s, t, r, g, b, a; + }; + struct vertex verts[4]; + GLboolean newTex; + GLubyte *bitmap8; + + /* + * Check if swrast fallback is needed. + */ + if (ctx->_ImageTransferState || + ctx->FragmentProgram._Enabled || + ctx->Fog.Enabled || + ctx->Texture._EnabledUnits || + width > tex->MaxSize || + height > tex->MaxSize) { + _swrast_Bitmap(ctx, x, y, width, height, unpack, bitmap1); + return; + } + + if (ctx->Color.AlphaEnabled && !alpha_test_raster_color(ctx)) + return; + + /* Most GL state applies to glBitmap (like blending, stencil, etc), + * but a there's a few things we need to override: + */ + _mesa_meta_begin(ctx, (META_ALPHA_TEST | + META_PIXEL_STORE | + META_RASTERIZATION | + META_SHADER | + META_TEXTURE | + META_TRANSFORM | + META_VERTEX | + META_VIEWPORT)); + + if (bitmap->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArraysAPPLE(1, &bitmap->ArrayObj); + _mesa_BindVertexArrayAPPLE(bitmap->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &bitmap->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->VBO); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + NULL, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_ColorPointer(4, GL_FLOAT, sizeof(struct vertex), OFFSET(r)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + _mesa_EnableClientState(GL_COLOR_ARRAY); + } + else { + _mesa_BindVertexArray(bitmap->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, bitmap->VBO); + } + + newTex = alloc_texture(tex, width, height, texIntFormat); + + /* vertex positions, texcoords, colors (after texture allocation!) */ + { + const GLfloat x0 = (GLfloat) x; + const GLfloat y0 = (GLfloat) y; + const GLfloat x1 = (GLfloat) (x + width); + const GLfloat y1 = (GLfloat) (y + height); + const GLfloat z = invert_z(ctx->Current.RasterPos[2]); + GLuint i; + + verts[0].x = x0; + verts[0].y = y0; + verts[0].z = z; + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[1].x = x1; + verts[1].y = y0; + verts[1].z = z; + verts[1].s = tex->Sright; + verts[1].t = 0.0F; + verts[2].x = x1; + verts[2].y = y1; + verts[2].z = z; + verts[2].s = tex->Sright; + verts[2].t = tex->Ttop; + verts[3].x = x0; + verts[3].y = y1; + verts[3].z = z; + verts[3].s = 0.0F; + verts[3].t = tex->Ttop; + + for (i = 0; i < 4; i++) { + verts[i].r = ctx->Current.RasterColor[0]; + verts[i].g = ctx->Current.RasterColor[1]; + verts[i].b = ctx->Current.RasterColor[2]; + verts[i].a = ctx->Current.RasterColor[3]; + } + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + /* choose different foreground/background alpha values */ + CLAMPED_FLOAT_TO_UBYTE(fg, ctx->Current.RasterColor[ACOMP]); + bg = (fg > 127 ? 0 : 255); + + bitmap1 = _mesa_map_pbo_source(ctx, &unpackSave, bitmap1); + if (!bitmap1) { + _mesa_meta_end(ctx); + return; + } + + bitmap8 = (GLubyte *) malloc(width * height); + if (bitmap8) { + memset(bitmap8, bg, width * height); + _mesa_expand_bitmap(width, height, &unpackSave, bitmap1, + bitmap8, width, fg); + + _mesa_set_enable(ctx, tex->Target, GL_TRUE); + + _mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE); + _mesa_AlphaFunc(GL_NOTEQUAL, UBYTE_TO_FLOAT(bg)); + + setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height, + GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + + _mesa_set_enable(ctx, tex->Target, GL_FALSE); + + free(bitmap8); + } + + _mesa_unmap_pbo_source(ctx, &unpackSave); + + _mesa_meta_end(ctx); +} + + +/** + * Check if the call to _mesa_meta_GenerateMipmap() will require a + * software fallback. The fallback path will require that the texture + * images are mapped. + * \return GL_TRUE if a fallback is needed, GL_FALSE otherwise + */ +GLboolean +_mesa_meta_check_generate_mipmap_fallback(struct gl_context *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + const GLuint fboSave = ctx->DrawBuffer->Name; + struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap; + struct gl_texture_image *baseImage; + GLuint srcLevel; + GLenum status; + + /* check for fallbacks */ + if (!ctx->Extensions.EXT_framebuffer_object || + target == GL_TEXTURE_3D) { + return GL_TRUE; + } + + srcLevel = texObj->BaseLevel; + baseImage = _mesa_select_tex_image(ctx, texObj, target, srcLevel); + if (!baseImage || _mesa_is_format_compressed(baseImage->TexFormat)) { + return GL_TRUE; + } + + /* + * Test that we can actually render in the texture's format. + */ + if (!mipmap->FBO) + _mesa_GenFramebuffersEXT(1, &mipmap->FBO); + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO); + + if (target == GL_TEXTURE_1D) { + _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, texObj->Name, srcLevel); + } +#if 0 + /* other work is needed to enable 3D mipmap generation */ + else if (target == GL_TEXTURE_3D) { + GLint zoffset = 0; + _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, texObj->Name, srcLevel, zoffset); + } +#endif + else { + /* 2D / cube */ + _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, texObj->Name, srcLevel); + } + + status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave); + + if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { + return GL_TRUE; + } + + return GL_FALSE; +} + + +/** + * Called via ctx->Driver.GenerateMipmap() + * Note: texture borders and 3D texture support not yet complete. + */ +void +_mesa_meta_GenerateMipmap(struct gl_context *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + struct gen_mipmap_state *mipmap = &ctx->Meta->Mipmap; + struct vertex { + GLfloat x, y, s, t, r; + }; + struct vertex verts[4]; + const GLuint baseLevel = texObj->BaseLevel; + const GLuint maxLevel = texObj->MaxLevel; + const GLenum minFilterSave = texObj->Sampler.MinFilter; + const GLenum magFilterSave = texObj->Sampler.MagFilter; + const GLint maxLevelSave = texObj->MaxLevel; + const GLboolean genMipmapSave = texObj->GenerateMipmap; + const GLenum wrapSSave = texObj->Sampler.WrapS; + const GLenum wrapTSave = texObj->Sampler.WrapT; + const GLenum wrapRSave = texObj->Sampler.WrapR; + const GLuint fboSave = ctx->DrawBuffer->Name; + const GLuint original_active_unit = ctx->Texture.CurrentUnit; + GLenum faceTarget; + GLuint dstLevel; + GLuint border = 0; + + if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) { + _mesa_generate_mipmap(ctx, target, texObj); + return; + } + + if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && + target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z) { + faceTarget = target; + target = GL_TEXTURE_CUBE_MAP; + } + else { + faceTarget = target; + } + + _mesa_meta_begin(ctx, META_ALL); + + if (original_active_unit != 0) + _mesa_BindTexture(target, texObj->Name); + + if (mipmap->ArrayObj == 0) { + /* one-time setup */ + + /* create vertex array object */ + _mesa_GenVertexArraysAPPLE(1, &mipmap->ArrayObj); + _mesa_BindVertexArrayAPPLE(mipmap->ArrayObj); + + /* create vertex array buffer */ + _mesa_GenBuffersARB(1, &mipmap->VBO); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(verts), + NULL, GL_DYNAMIC_DRAW_ARB); + + /* setup vertex arrays */ + _mesa_VertexPointer(2, GL_FLOAT, sizeof(struct vertex), OFFSET(x)); + _mesa_TexCoordPointer(3, GL_FLOAT, sizeof(struct vertex), OFFSET(s)); + _mesa_EnableClientState(GL_VERTEX_ARRAY); + _mesa_EnableClientState(GL_TEXTURE_COORD_ARRAY); + } + else { + _mesa_BindVertexArray(mipmap->ArrayObj); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, mipmap->VBO); + } + + if (!mipmap->FBO) { + _mesa_GenFramebuffersEXT(1, &mipmap->FBO); + } + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mipmap->FBO); + + _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, GL_FALSE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); + + _mesa_set_enable(ctx, target, GL_TRUE); + + /* setup texcoords once (XXX what about border?) */ + switch (faceTarget) { + case GL_TEXTURE_1D: + case GL_TEXTURE_2D: + verts[0].s = 0.0F; + verts[0].t = 0.0F; + verts[0].r = 0.0F; + verts[1].s = 1.0F; + verts[1].t = 0.0F; + verts[1].r = 0.0F; + verts[2].s = 1.0F; + verts[2].t = 1.0F; + verts[2].r = 0.0F; + verts[3].s = 0.0F; + verts[3].t = 1.0F; + verts[3].r = 0.0F; + break; + case GL_TEXTURE_3D: + abort(); + break; + default: + /* cube face */ + { + static const GLfloat st[4][2] = { + {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} + }; + GLuint i; + + /* loop over quad verts */ + for (i = 0; i < 4; i++) { + /* Compute sc = +/-scale and tc = +/-scale. + * Not +/-1 to avoid cube face selection ambiguity near the edges, + * though that can still sometimes happen with this scale factor... + */ + const GLfloat scale = 0.9999f; + const GLfloat sc = (2.0f * st[i][0] - 1.0f) * scale; + const GLfloat tc = (2.0f * st[i][1] - 1.0f) * scale; + + switch (faceTarget) { + case GL_TEXTURE_CUBE_MAP_POSITIVE_X: + verts[i].s = 1.0f; + verts[i].t = -tc; + verts[i].r = -sc; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: + verts[i].s = -1.0f; + verts[i].t = -tc; + verts[i].r = sc; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: + verts[i].s = sc; + verts[i].t = 1.0f; + verts[i].r = tc; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: + verts[i].s = sc; + verts[i].t = -1.0f; + verts[i].r = -tc; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: + verts[i].s = sc; + verts[i].t = -tc; + verts[i].r = 1.0f; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: + verts[i].s = -sc; + verts[i].t = -tc; + verts[i].r = -1.0f; + break; + default: + assert(0); + } + } + } + } + + _mesa_set_enable(ctx, target, GL_TRUE); + + /* setup vertex positions */ + { + verts[0].x = 0.0F; + verts[0].y = 0.0F; + verts[1].x = 1.0F; + verts[1].y = 0.0F; + verts[2].x = 1.0F; + verts[2].y = 1.0F; + verts[3].x = 0.0F; + verts[3].y = 1.0F; + + /* upload new vertex data */ + _mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts); + } + + /* setup projection matrix */ + _mesa_MatrixMode(GL_PROJECTION); + _mesa_LoadIdentity(); + _mesa_Ortho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0); + + /* texture is already locked, unlock now */ + _mesa_unlock_texture(ctx, texObj); + + for (dstLevel = baseLevel + 1; dstLevel <= maxLevel; dstLevel++) { + const struct gl_texture_image *srcImage; + const GLuint srcLevel = dstLevel - 1; + GLsizei srcWidth, srcHeight, srcDepth; + GLsizei dstWidth, dstHeight, dstDepth; + GLenum status; + + srcImage = _mesa_select_tex_image(ctx, texObj, faceTarget, srcLevel); + assert(srcImage->Border == 0); /* XXX we can fix this */ + + /* src size w/out border */ + srcWidth = srcImage->Width - 2 * border; + srcHeight = srcImage->Height - 2 * border; + srcDepth = srcImage->Depth - 2 * border; + + /* new dst size w/ border */ + dstWidth = MAX2(1, srcWidth / 2) + 2 * border; + dstHeight = MAX2(1, srcHeight / 2) + 2 * border; + dstDepth = MAX2(1, srcDepth / 2) + 2 * border; + + if (dstWidth == srcImage->Width && + dstHeight == srcImage->Height && + dstDepth == srcImage->Depth) { + /* all done */ + break; + } + + /* Set MaxLevel large enough to hold the new level when we allocate it */ + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, dstLevel); + + /* Create empty dest image */ + if (target == GL_TEXTURE_1D) { + _mesa_TexImage1D(target, dstLevel, srcImage->InternalFormat, + dstWidth, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + else if (target == GL_TEXTURE_3D) { + _mesa_TexImage3D(target, dstLevel, srcImage->InternalFormat, + dstWidth, dstHeight, dstDepth, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + else { + /* 2D or cube */ + _mesa_TexImage2D(faceTarget, dstLevel, srcImage->InternalFormat, + dstWidth, dstHeight, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + + if (target == GL_TEXTURE_CUBE_MAP) { + /* If texturing from a cube, we need to make sure all src faces + * have been defined (even if we're not sampling from them.) + * Otherwise the texture object will be 'incomplete' and + * texturing from it will not be allowed. + */ + GLuint face; + for (face = 0; face < 6; face++) { + if (!texObj->Image[face][srcLevel] || + texObj->Image[face][srcLevel]->Width != srcWidth) { + _mesa_TexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, + srcLevel, srcImage->InternalFormat, + srcWidth, srcHeight, border, + GL_RGBA, GL_UNSIGNED_BYTE, NULL); + } + } + } + } + + /* limit minification to src level */ + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, srcLevel); + + /* Set to draw into the current dstLevel */ + if (target == GL_TEXTURE_1D) { + _mesa_FramebufferTexture1DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, + texObj->Name, + dstLevel); + } + else if (target == GL_TEXTURE_3D) { + GLint zoffset = 0; /* XXX unfinished */ + _mesa_FramebufferTexture3DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + target, + texObj->Name, + dstLevel, zoffset); + } + else { + /* 2D / cube */ + _mesa_FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, + GL_COLOR_ATTACHMENT0_EXT, + faceTarget, + texObj->Name, + dstLevel); + } + + _mesa_DrawBuffer(GL_COLOR_ATTACHMENT0_EXT); + + /* sanity check */ + status = _mesa_CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { + abort(); + break; + } + + assert(dstWidth == ctx->DrawBuffer->Width); + assert(dstHeight == ctx->DrawBuffer->Height); + + /* setup viewport */ + _mesa_set_viewport(ctx, 0, 0, dstWidth, dstHeight); + + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); + } + + _mesa_lock_texture(ctx, texObj); /* relock */ + + _mesa_meta_end(ctx); + + _mesa_TexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilterSave); + _mesa_TexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilterSave); + _mesa_TexParameteri(target, GL_TEXTURE_MAX_LEVEL, maxLevelSave); + _mesa_TexParameteri(target, GL_GENERATE_MIPMAP, genMipmapSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, wrapSSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, wrapTSave); + _mesa_TexParameteri(target, GL_TEXTURE_WRAP_R, wrapRSave); + + _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboSave); +} + + +/** + * Determine the GL data type to use for the temporary image read with + * ReadPixels() and passed to Tex[Sub]Image(). + */ +static GLenum +get_temp_image_type(struct gl_context *ctx, GLenum baseFormat) +{ + switch (baseFormat) { + case GL_RGBA: + case GL_RGB: + case GL_ALPHA: + case GL_LUMINANCE: + case GL_LUMINANCE_ALPHA: + case GL_INTENSITY: + if (ctx->DrawBuffer->Visual.redBits <= 8) + return GL_UNSIGNED_BYTE; + else if (ctx->DrawBuffer->Visual.redBits <= 8) + return GL_UNSIGNED_SHORT; + else + return GL_FLOAT; + case GL_DEPTH_COMPONENT: + return GL_UNSIGNED_INT; + case GL_DEPTH_STENCIL: + return GL_UNSIGNED_INT_24_8; + default: + _mesa_problem(ctx, "Unexpected format in get_temp_image_type()"); + return 0; + } +} + + +/** + * Helper for _mesa_meta_CopyTexImage1/2D() functions. + * Have to be careful with locking and meta state for pixel transfer. + */ +static void +copy_tex_image(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; + GLenum format, type; + GLint bpp; + void *buf; + + texObj = _mesa_get_current_tex_object(ctx, target); + texImage = _mesa_get_tex_image(ctx, texObj, target, level); + + /* Choose format/type for temporary image buffer */ + format = _mesa_base_tex_format(ctx, internalFormat); + type = get_temp_image_type(ctx, format); + bpp = _mesa_bytes_per_pixel(format, type); + if (bpp <= 0) { + _mesa_problem(ctx, "Bad bpp in meta copy_tex_image()"); + return; + } + + /* + * Alloc image buffer (XXX could use a PBO) + */ + buf = malloc(width * height * bpp); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); + return; + } + + _mesa_unlock_texture(ctx, texObj); /* need to unlock first */ + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, height, + format, type, &ctx->Pack, buf); + _mesa_meta_end(ctx); + + if (texImage->Data) { + ctx->Driver.FreeTexImageData(ctx, texImage); + } + + /* The texture's format was already chosen in _mesa_CopyTexImage() */ + ASSERT(texImage->TexFormat != MESA_FORMAT_NONE); + + /* + * Store texture data (with pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE); + + _mesa_update_state(ctx); /* to update pixel transfer state */ + + if (target == GL_TEXTURE_1D) { + ctx->Driver.TexImage1D(ctx, target, level, internalFormat, + width, border, format, type, + buf, &ctx->Unpack, texObj, texImage); + } + else { + ctx->Driver.TexImage2D(ctx, target, level, internalFormat, + width, height, border, format, type, + buf, &ctx->Unpack, texObj, texImage); + } + _mesa_meta_end(ctx); + + _mesa_lock_texture(ctx, texObj); /* re-lock */ + + free(buf); +} + + +void +_mesa_meta_CopyTexImage1D(struct gl_context *ctx, GLenum target, GLint level, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLint border) +{ + copy_tex_image(ctx, 1, target, level, internalFormat, x, y, + width, 1, border); +} + + +void +_mesa_meta_CopyTexImage2D(struct gl_context *ctx, GLenum target, GLint level, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height, GLint border) +{ + copy_tex_image(ctx, 2, target, level, internalFormat, x, y, + width, height, border); +} + + + +/** + * Helper for _mesa_meta_CopyTexSubImage1/2/3D() functions. + * Have to be careful with locking and meta state for pixel transfer. + */ +static void +copy_tex_sub_image(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; + GLenum format, type; + GLint bpp; + void *buf; + + texObj = _mesa_get_current_tex_object(ctx, target); + texImage = _mesa_select_tex_image(ctx, texObj, target, level); + + /* Choose format/type for temporary image buffer */ + format = _mesa_get_format_base_format(texImage->TexFormat); + type = get_temp_image_type(ctx, format); + bpp = _mesa_bytes_per_pixel(format, type); + if (bpp <= 0) { + _mesa_problem(ctx, "Bad bpp in meta copy_tex_sub_image()"); + return; + } + + /* + * Alloc image buffer (XXX could use a PBO) + */ + buf = malloc(width * height * bpp); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%uD", dims); + return; + } + + _mesa_unlock_texture(ctx, texObj); /* need to unlock first */ + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, height, + format, type, &ctx->Pack, buf); + _mesa_meta_end(ctx); + + _mesa_update_state(ctx); /* to update pixel transfer state */ + + /* + * Store texture data (with pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE); + if (target == GL_TEXTURE_1D) { + ctx->Driver.TexSubImage1D(ctx, target, level, xoffset, + width, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + else if (target == GL_TEXTURE_3D) { + ctx->Driver.TexSubImage3D(ctx, target, level, xoffset, yoffset, zoffset, + width, height, 1, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + else { + ctx->Driver.TexSubImage2D(ctx, target, level, xoffset, yoffset, + width, height, format, type, buf, + &ctx->Unpack, texObj, texImage); + } + _mesa_meta_end(ctx); + + _mesa_lock_texture(ctx, texObj); /* re-lock */ + + free(buf); +} + + +void +_mesa_meta_CopyTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level, + GLint xoffset, + GLint x, GLint y, GLsizei width) +{ + copy_tex_sub_image(ctx, 1, target, level, xoffset, 0, 0, + x, y, width, 1); +} + + +void +_mesa_meta_CopyTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level, + GLint xoffset, GLint yoffset, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + copy_tex_sub_image(ctx, 2, target, level, xoffset, yoffset, 0, + x, y, width, height); +} + + +void +_mesa_meta_CopyTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level, + GLint xoffset, GLint yoffset, GLint zoffset, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + copy_tex_sub_image(ctx, 3, target, level, xoffset, yoffset, zoffset, + x, y, width, height); +} + + +void +_mesa_meta_CopyColorTable(struct gl_context *ctx, + GLenum target, GLenum internalformat, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorTable(target, internalformat, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + free(buf); +} + + +void +_mesa_meta_CopyColorSubTable(struct gl_context *ctx,GLenum target, GLsizei start, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorSubTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorSubTable(target, start, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + free(buf); +} diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c index 82474cf41..d31477731 100644 --- a/mesalib/src/mesa/main/extensions.c +++ b/mesalib/src/mesa/main/extensions.c @@ -1,999 +1,1000 @@ -/* - * 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_color_buffer_float", o(ARB_color_buffer_float), GL, 2004 }, - { "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_robustness", o(dummy_true), GL, 2010 }, - { "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_float", o(ARB_texture_float), GL, 2004 }, - { "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_snorm", o(EXT_texture_snorm), GL, 2009 }, - { "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_draw_buffers", o(ARB_draw_buffers), GL, 2002 }, - { "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_float", o(ARB_texture_float), 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(EXT_texture_snorm), GL, 2009 }, - { "GL_MESA_window_pos", o(ARB_window_pos), GL, 2000 }, - { "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; - unsigned maxYear = ~0; - - /* Check if the MESA_EXTENSION_MAX_YEAR env var is set */ - { - const char *env = getenv("MESA_EXTENSION_MAX_YEAR"); - if (env) { - maxYear = atoi(env); - _mesa_debug(ctx, "Note: limiting GL extensions to %u or earlier\n", - maxYear); - } - } - - /* Compute length of the extension string. */ - count = 0; - for (i = extension_table; i->name != 0; ++i) { - if (base[i->offset] && - i->year <= maxYear && - (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_index)); - 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->year <= maxYear && - (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_color_buffer_float", o(ARB_color_buffer_float), GL, 2004 }, + { "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_robustness", o(dummy_true), GL, 2010 }, + { "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_float", o(ARB_texture_float), GL, 2004 }, + { "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_snorm", o(EXT_texture_snorm), GL, 2009 }, + { "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_draw_buffers", o(ARB_draw_buffers), GL, 2002 }, + { "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_float", o(ARB_texture_float), 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(EXT_texture_snorm), GL, 2009 }, + { "GL_MESA_window_pos", o(ARB_window_pos), GL, 2000 }, + { "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; + ctx->Extensions.EXT_texture_shared_exponent = 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; + unsigned maxYear = ~0; + + /* Check if the MESA_EXTENSION_MAX_YEAR env var is set */ + { + const char *env = getenv("MESA_EXTENSION_MAX_YEAR"); + if (env) { + maxYear = atoi(env); + _mesa_debug(ctx, "Note: limiting GL extensions to %u or earlier\n", + maxYear); + } + } + + /* Compute length of the extension string. */ + count = 0; + for (i = extension_table; i->name != 0; ++i) { + if (base[i->offset] && + i->year <= maxYear && + (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_index)); + 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->year <= maxYear && + (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 1edb310ea..68a141d29 100644 --- a/mesalib/src/mesa/main/fbobject.c +++ b/mesalib/src/mesa/main/fbobject.c @@ -1,2526 +1,2539 @@ -/* - * 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 (_mesa_get_attachment_teximage(att)) { - 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 = - _mesa_get_attachment_teximage(att); - 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 (att->Renderbuffer && 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_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; - /* signed normalized texture formats */ - case GL_RED_SNORM: - case GL_R8_SNORM: - case GL_R16_SNORM: - return ctx->Extensions.EXT_texture_snorm ? GL_RED : 0; - case GL_RG_SNORM: - case GL_RG8_SNORM: - case GL_RG16_SNORM: - return ctx->Extensions.EXT_texture_snorm ? GL_RG : 0; - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - case GL_RGB16_SNORM: - return ctx->Extensions.EXT_texture_snorm ? GL_RGB : 0; - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - case GL_RGBA16_SNORM: - return ctx->Extensions.EXT_texture_snorm ? GL_RGBA : 0; - case GL_ALPHA_SNORM: - case GL_ALPHA8_SNORM: - case GL_ALPHA16_SNORM: - return ctx->Extensions.EXT_texture_snorm && - ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; - case GL_LUMINANCE_SNORM: - case GL_LUMINANCE8_SNORM: - case GL_LUMINANCE16_SNORM: - return ctx->Extensions.EXT_texture_snorm && - ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; - case GL_LUMINANCE_ALPHA_SNORM: - case GL_LUMINANCE8_ALPHA8_SNORM: - case GL_LUMINANCE16_ALPHA16_SNORM: - return ctx->Extensions.EXT_texture_snorm && - ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; - case GL_INTENSITY_SNORM: - case GL_INTENSITY8_SNORM: - case GL_INTENSITY16_SNORM: - return ctx->Extensions.EXT_texture_snorm && - ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; - case GL_R16F: - case GL_R32F: - return ctx->Extensions.ARB_texture_rg && - ctx->Extensions.ARB_texture_float ? GL_RED : 0; - case GL_RG16F: - case GL_RG32F: - return ctx->Extensions.ARB_texture_rg && - ctx->Extensions.ARB_texture_float ? GL_RG : 0; - case GL_RGB16F: - case GL_RGB32F: - return ctx->Extensions.ARB_texture_float ? GL_RGB : 0; - case GL_RGBA16F: - case GL_RGBA32F: - return ctx->Extensions.ARB_texture_float ? GL_RGBA : 0; - case GL_ALPHA16F_ARB: - case GL_ALPHA32F_ARB: - return ctx->Extensions.ARB_texture_float && - ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; - case GL_LUMINANCE16F_ARB: - case GL_LUMINANCE32F_ARB: - return ctx->Extensions.ARB_texture_float && - ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; - case GL_LUMINANCE_ALPHA16F_ARB: - case GL_LUMINANCE_ALPHA32F_ARB: - return ctx->Extensions.ARB_texture_float && - ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; - case GL_INTENSITY16F_ARB: - case GL_INTENSITY32F_ARB: - return ctx->Extensions.ARB_texture_float && - ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; - /* XXX add 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; - if (att->Texture && _mesa_get_attachment_teximage(att)) { - 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 (_mesa_get_attachment_teximage(att)) { + 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; + case GL_RGB: + switch (rb->Format) { + case MESA_FORMAT_RGB9_E5_FLOAT: + fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED; + return; + default:; + } + break; + + 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 = + _mesa_get_attachment_teximage(att); + 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 (att->Renderbuffer && 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_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; + /* signed normalized texture formats */ + case GL_RED_SNORM: + case GL_R8_SNORM: + case GL_R16_SNORM: + return ctx->Extensions.EXT_texture_snorm ? GL_RED : 0; + case GL_RG_SNORM: + case GL_RG8_SNORM: + case GL_RG16_SNORM: + return ctx->Extensions.EXT_texture_snorm ? GL_RG : 0; + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + case GL_RGB16_SNORM: + return ctx->Extensions.EXT_texture_snorm ? GL_RGB : 0; + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + case GL_RGBA16_SNORM: + return ctx->Extensions.EXT_texture_snorm ? GL_RGBA : 0; + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + case GL_ALPHA16_SNORM: + return ctx->Extensions.EXT_texture_snorm && + ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + case GL_LUMINANCE16_SNORM: + return ctx->Extensions.EXT_texture_snorm && + ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + case GL_LUMINANCE16_ALPHA16_SNORM: + return ctx->Extensions.EXT_texture_snorm && + ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + case GL_INTENSITY16_SNORM: + return ctx->Extensions.EXT_texture_snorm && + ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; + case GL_R16F: + case GL_R32F: + return ctx->Extensions.ARB_texture_rg && + ctx->Extensions.ARB_texture_float ? GL_RED : 0; + case GL_RG16F: + case GL_RG32F: + return ctx->Extensions.ARB_texture_rg && + ctx->Extensions.ARB_texture_float ? GL_RG : 0; + case GL_RGB16F: + case GL_RGB32F: + return ctx->Extensions.ARB_texture_float ? GL_RGB : 0; + case GL_RGBA16F: + case GL_RGBA32F: + return ctx->Extensions.ARB_texture_float ? GL_RGBA : 0; + case GL_ALPHA16F_ARB: + case GL_ALPHA32F_ARB: + return ctx->Extensions.ARB_texture_float && + ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0; + case GL_LUMINANCE16F_ARB: + case GL_LUMINANCE32F_ARB: + return ctx->Extensions.ARB_texture_float && + ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0; + case GL_LUMINANCE_ALPHA16F_ARB: + case GL_LUMINANCE_ALPHA32F_ARB: + return ctx->Extensions.ARB_texture_float && + ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0; + case GL_INTENSITY16F_ARB: + case GL_INTENSITY32F_ARB: + return ctx->Extensions.ARB_texture_float && + ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0; + case GL_RGB9_E5: + return ctx->Extensions.EXT_texture_shared_exponent ? GL_RGB : 0; + case GL_R11F_G11F_B10F: + return ctx->Extensions.EXT_packed_float ? GL_RGB : 0; + /* XXX add 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; + if (att->Texture && _mesa_get_attachment_teximage(att)) { + 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 4c31ccb76..f0f30fe0a 100644 --- a/mesalib/src/mesa/main/formats.c +++ b/mesalib/src/mesa/main/formats.c @@ -1,1820 +1,1848 @@ -/* - * 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_LUMINANCE, - GL_FLOAT, - 0, 0, 0, 0, - 32, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_LUMINANCE_FLOAT16, - "MESA_FORMAT_LUMINANCE_FLOAT16", - GL_LUMINANCE, - 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 - }, - { - MESA_FORMAT_R_FLOAT32, - "MESA_FORMAT_R_FLOAT32", - GL_RED, - GL_FLOAT, - 32, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_R_FLOAT16, - "MESA_FORMAT_R_FLOAT16", - GL_RED, - GL_FLOAT, - 16, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_RG_FLOAT32, - "MESA_FORMAT_RG_FLOAT32", - GL_RG, - GL_FLOAT, - 32, 32, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 8 - }, - { - MESA_FORMAT_RG_FLOAT16, - "MESA_FORMAT_RG_FLOAT16", - GL_RG, - GL_FLOAT, - 16, 16, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 4 - }, - - /* 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_REV, - "MESA_FORMAT_SIGNED_RG88_REV", - 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_R16, - "MESA_FORMAT_SIGNED_R16", - GL_RED, - GL_SIGNED_NORMALIZED, - 16, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_GR1616, - "MESA_FORMAT_SIGNED_GR1616", - 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 */ - }, - - /* Signed formats from EXT_texture_snorm that are not in GL3.1 */ - { - MESA_FORMAT_SIGNED_A8, - "MESA_FORMAT_SIGNED_A8", - GL_ALPHA, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 8, - 0, 0, 0, 0, 0, - 1, 1, 1 - }, - { - MESA_FORMAT_SIGNED_L8, - "MESA_FORMAT_SIGNED_L8", - GL_LUMINANCE, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 8, 0, 0, 0, 0, - 1, 1, 1 - }, - { - MESA_FORMAT_SIGNED_AL88, - "MESA_FORMAT_SIGNED_AL88", - GL_LUMINANCE_ALPHA, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 8, - 8, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_I8, - "MESA_FORMAT_SIGNED_I8", - GL_INTENSITY, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 0, 8, 0, 0, 0, - 1, 1, 1 - }, - { - MESA_FORMAT_SIGNED_A16, - "MESA_FORMAT_SIGNED_A16", - GL_ALPHA, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 16, - 0, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_L16, - "MESA_FORMAT_SIGNED_L16", - GL_LUMINANCE, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 16, 0, 0, 0, 0, - 1, 1, 2 - }, - { - MESA_FORMAT_SIGNED_AL1616, - "MESA_FORMAT_SIGNED_AL1616", - GL_LUMINANCE_ALPHA, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 16, - 16, 0, 0, 0, 0, - 1, 1, 4 - }, - { - MESA_FORMAT_SIGNED_I16, - "MESA_FORMAT_SIGNED_I16", - GL_INTENSITY, - GL_SIGNED_NORMALIZED, - 0, 0, 0, 0, - 0, 16, 0, 0, 0, - 1, 1, 2 - } -}; - - - -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: - case MESA_FORMAT_SIGNED_A8: - case MESA_FORMAT_SIGNED_L8: - case MESA_FORMAT_SIGNED_I8: - *datatype = GL_BYTE; - *comps = 1; - return; - case MESA_FORMAT_SIGNED_RG88_REV: - case MESA_FORMAT_SIGNED_AL88: - *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_R16: - case MESA_FORMAT_SIGNED_A16: - case MESA_FORMAT_SIGNED_L16: - case MESA_FORMAT_SIGNED_I16: - *datatype = GL_SHORT; - *comps = 1; - return; - case MESA_FORMAT_SIGNED_GR1616: - case MESA_FORMAT_SIGNED_AL1616: - *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: - case MESA_FORMAT_RG_FLOAT32: - *datatype = GL_FLOAT; - *comps = 2; - return; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: - case MESA_FORMAT_RG_FLOAT16: - *datatype = GL_HALF_FLOAT_ARB; - *comps = 2; - return; - case MESA_FORMAT_ALPHA_FLOAT32: - case MESA_FORMAT_LUMINANCE_FLOAT32: - case MESA_FORMAT_INTENSITY_FLOAT32: - case MESA_FORMAT_R_FLOAT32: - *datatype = GL_FLOAT; - *comps = 1; - return; - case MESA_FORMAT_ALPHA_FLOAT16: - case MESA_FORMAT_LUMINANCE_FLOAT16: - case MESA_FORMAT_INTENSITY_FLOAT16: - case MESA_FORMAT_R_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_LUMINANCE, + GL_FLOAT, + 0, 0, 0, 0, + 32, 0, 0, 0, 0, + 1, 1, 4 + }, + { + MESA_FORMAT_LUMINANCE_FLOAT16, + "MESA_FORMAT_LUMINANCE_FLOAT16", + GL_LUMINANCE, + 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 + }, + { + MESA_FORMAT_R_FLOAT32, + "MESA_FORMAT_R_FLOAT32", + GL_RED, + GL_FLOAT, + 32, 0, 0, 0, + 0, 0, 0, 0, 0, + 1, 1, 4 + }, + { + MESA_FORMAT_R_FLOAT16, + "MESA_FORMAT_R_FLOAT16", + GL_RED, + GL_FLOAT, + 16, 0, 0, 0, + 0, 0, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_RG_FLOAT32, + "MESA_FORMAT_RG_FLOAT32", + GL_RG, + GL_FLOAT, + 32, 32, 0, 0, + 0, 0, 0, 0, 0, + 1, 1, 8 + }, + { + MESA_FORMAT_RG_FLOAT16, + "MESA_FORMAT_RG_FLOAT16", + GL_RG, + GL_FLOAT, + 16, 16, 0, 0, + 0, 0, 0, 0, 0, + 1, 1, 4 + }, + + /* 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_REV, + "MESA_FORMAT_SIGNED_RG88_REV", + 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_R16, + "MESA_FORMAT_SIGNED_R16", + GL_RED, + GL_SIGNED_NORMALIZED, + 16, 0, 0, 0, + 0, 0, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_SIGNED_GR1616, + "MESA_FORMAT_SIGNED_GR1616", + 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 */ + }, + + /* Signed formats from EXT_texture_snorm that are not in GL3.1 */ + { + MESA_FORMAT_SIGNED_A8, + "MESA_FORMAT_SIGNED_A8", + GL_ALPHA, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 8, + 0, 0, 0, 0, 0, + 1, 1, 1 + }, + { + MESA_FORMAT_SIGNED_L8, + "MESA_FORMAT_SIGNED_L8", + GL_LUMINANCE, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 0, + 8, 0, 0, 0, 0, + 1, 1, 1 + }, + { + MESA_FORMAT_SIGNED_AL88, + "MESA_FORMAT_SIGNED_AL88", + GL_LUMINANCE_ALPHA, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 8, + 8, 0, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_SIGNED_I8, + "MESA_FORMAT_SIGNED_I8", + GL_INTENSITY, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 0, + 0, 8, 0, 0, 0, + 1, 1, 1 + }, + { + MESA_FORMAT_SIGNED_A16, + "MESA_FORMAT_SIGNED_A16", + GL_ALPHA, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 16, + 0, 0, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_SIGNED_L16, + "MESA_FORMAT_SIGNED_L16", + GL_LUMINANCE, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 0, + 16, 0, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_SIGNED_AL1616, + "MESA_FORMAT_SIGNED_AL1616", + GL_LUMINANCE_ALPHA, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 16, + 16, 0, 0, 0, 0, + 1, 1, 4 + }, + { + MESA_FORMAT_SIGNED_I16, + "MESA_FORMAT_SIGNED_I16", + GL_INTENSITY, + GL_SIGNED_NORMALIZED, + 0, 0, 0, 0, + 0, 16, 0, 0, 0, + 1, 1, 2 + }, + { + MESA_FORMAT_RGB9_E5_FLOAT, + "MESA_FORMAT_RGB9_E5", + GL_RGB, + GL_FLOAT, + 9, 9, 9, 0, + 0, 0, 0, 0, 0, + 1, 1, 4 + }, + { + MESA_FORMAT_R11_G11_B10_FLOAT, + "MESA_FORMAT_R11_G11_B10_FLOAT", + GL_RGB, + GL_FLOAT, + 11, 11, 10, 0, + 0, 0, 0, 0, 0, + 1, 1, 4 + }, +}; + + + +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: + case MESA_FORMAT_SIGNED_A8: + case MESA_FORMAT_SIGNED_L8: + case MESA_FORMAT_SIGNED_I8: + *datatype = GL_BYTE; + *comps = 1; + return; + case MESA_FORMAT_SIGNED_RG88_REV: + case MESA_FORMAT_SIGNED_AL88: + *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_R16: + case MESA_FORMAT_SIGNED_A16: + case MESA_FORMAT_SIGNED_L16: + case MESA_FORMAT_SIGNED_I16: + *datatype = GL_SHORT; + *comps = 1; + return; + case MESA_FORMAT_SIGNED_GR1616: + case MESA_FORMAT_SIGNED_AL1616: + *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: + case MESA_FORMAT_RG_FLOAT32: + *datatype = GL_FLOAT; + *comps = 2; + return; + case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: + case MESA_FORMAT_RG_FLOAT16: + *datatype = GL_HALF_FLOAT_ARB; + *comps = 2; + return; + case MESA_FORMAT_ALPHA_FLOAT32: + case MESA_FORMAT_LUMINANCE_FLOAT32: + case MESA_FORMAT_INTENSITY_FLOAT32: + case MESA_FORMAT_R_FLOAT32: + *datatype = GL_FLOAT; + *comps = 1; + return; + case MESA_FORMAT_ALPHA_FLOAT16: + case MESA_FORMAT_LUMINANCE_FLOAT16: + case MESA_FORMAT_INTENSITY_FLOAT16: + case MESA_FORMAT_R_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_RGB9_E5_FLOAT: + *datatype = GL_UNSIGNED_INT_5_9_9_9_REV; + *comps = 3; + return; + + case MESA_FORMAT_R11_G11_B10_FLOAT: + *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV; + *comps = 3; + 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 15ac62cfe..c9fd0baab 100644 --- a/mesalib/src/mesa/main/formats.h +++ b/mesalib/src/mesa/main/formats.h @@ -1,264 +1,267 @@ -/* - * 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 - -/* 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, - MESA_FORMAT_R_FLOAT32, - MESA_FORMAT_R_FLOAT16, - MESA_FORMAT_RG_FLOAT32, - MESA_FORMAT_RG_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_REV, /* GGGG GGGG RRRR RRRR */ - 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_R16, /* RRRR RRRR RRRR RRRR */ - MESA_FORMAT_SIGNED_GR1616, /* GGGG GGGG GGGG GGGG RRRR RRRR RRRR RRRR */ - 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_SIGNED_A8, /* AAAA AAAA */ - MESA_FORMAT_SIGNED_L8, /* LLLL LLLL */ - MESA_FORMAT_SIGNED_AL88, /* AAAA AAAA LLLL LLLL */ - MESA_FORMAT_SIGNED_I8, /* IIII IIII */ - MESA_FORMAT_SIGNED_A16, /* AAAA AAAA AAAA AAAA */ - MESA_FORMAT_SIGNED_L16, /* LLLL LLLL LLLL LLLL */ - MESA_FORMAT_SIGNED_AL1616, /* AAAA AAAA AAAA AAAA LLLL LLLL LLLL LLLL */ - MESA_FORMAT_SIGNED_I16, /* IIII IIII IIII IIII */ - - 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 + +/* 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, + MESA_FORMAT_R_FLOAT32, + MESA_FORMAT_R_FLOAT16, + MESA_FORMAT_RG_FLOAT32, + MESA_FORMAT_RG_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_REV, /* GGGG GGGG RRRR RRRR */ + 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_R16, /* RRRR RRRR RRRR RRRR */ + MESA_FORMAT_SIGNED_GR1616, /* GGGG GGGG GGGG GGGG RRRR RRRR RRRR RRRR */ + 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_SIGNED_A8, /* AAAA AAAA */ + MESA_FORMAT_SIGNED_L8, /* LLLL LLLL */ + MESA_FORMAT_SIGNED_AL88, /* AAAA AAAA LLLL LLLL */ + MESA_FORMAT_SIGNED_I8, /* IIII IIII */ + MESA_FORMAT_SIGNED_A16, /* AAAA AAAA AAAA AAAA */ + MESA_FORMAT_SIGNED_L16, /* LLLL LLLL LLLL LLLL */ + MESA_FORMAT_SIGNED_AL1616, /* AAAA AAAA AAAA AAAA LLLL LLLL LLLL LLLL */ + MESA_FORMAT_SIGNED_I16, /* IIII IIII IIII IIII */ + + MESA_FORMAT_RGB9_E5_FLOAT, + MESA_FORMAT_R11_G11_B10_FLOAT, + + 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/image.c b/mesalib/src/mesa/main/image.c index 28841c251..a5cd5ac03 100644 --- a/mesalib/src/mesa/main/image.c +++ b/mesalib/src/mesa/main/image.c @@ -1,1913 +1,1935 @@ -/* - * 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: - /* 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: - /* signed, normalized texture formats */ - case GL_RED_SNORM: - case GL_R8_SNORM: - case GL_R16_SNORM: - case GL_RG_SNORM: - case GL_RG8_SNORM: - case GL_RG16_SNORM: - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - case GL_RGB16_SNORM: - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - case GL_RGBA16_SNORM: - case GL_ALPHA_SNORM: - case GL_ALPHA8_SNORM: - case GL_ALPHA16_SNORM: - case GL_LUMINANCE_SNORM: - case GL_LUMINANCE8_SNORM: - case GL_LUMINANCE16_SNORM: - case GL_LUMINANCE_ALPHA_SNORM: - case GL_LUMINANCE8_ALPHA8_SNORM: - case GL_LUMINANCE16_ALPHA16_SNORM: - case GL_INTENSITY_SNORM: - case GL_INTENSITY8_SNORM: - case GL_INTENSITY16_SNORM: - 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: + case GL_UNSIGNED_INT_5_9_9_9_REV: + case GL_UNSIGNED_INT_10F_11F_11F_REV: + 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); + case GL_UNSIGNED_INT_5_9_9_9_REV: + return sizeof(GLuint); + case GL_UNSIGNED_INT_10F_11F_11F_REV: + 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; + case GL_UNSIGNED_INT_5_9_9_9_REV: + if (format == GL_RGB) + return sizeof(GLuint); + else + return -1; + case GL_UNSIGNED_INT_10F_11F_11F_REV: + if (format == GL_RGB) + 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; + case GL_UNSIGNED_INT_5_9_9_9_REV: + return ctx->Extensions.EXT_texture_shared_exponent; + case GL_UNSIGNED_INT_10F_11F_11F_REV: + return ctx->Extensions.EXT_packed_float; + 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: + /* 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: + /* signed, normalized texture formats */ + case GL_RED_SNORM: + case GL_R8_SNORM: + case GL_R16_SNORM: + case GL_RG_SNORM: + case GL_RG8_SNORM: + case GL_RG16_SNORM: + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + case GL_RGB16_SNORM: + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + case GL_RGBA16_SNORM: + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + case GL_ALPHA16_SNORM: + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + case GL_LUMINANCE16_SNORM: + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + case GL_LUMINANCE16_ALPHA16_SNORM: + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + case GL_INTENSITY16_SNORM: + case GL_RGB9_E5: + case GL_R11F_G11F_B10F: + 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/mipmap.c b/mesalib/src/mesa/main/mipmap.c index 0578631ef..ed93cbc6c 100644 --- a/mesalib/src/mesa/main/mipmap.c +++ b/mesalib/src/mesa/main/mipmap.c @@ -1,2106 +1,2202 @@ -/* - * 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 if (datatype == GL_UNSIGNED_INT_2_10_10_10_REV && comps == 4) { - 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) { - const GLint rowAr0 = rowA[j] & 0x3ff; - const GLint rowAr1 = rowA[k] & 0x3ff; - const GLint rowBr0 = rowB[j] & 0x3ff; - const GLint rowBr1 = rowB[k] & 0x3ff; - const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; - const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; - const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; - const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; - const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; - const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; - const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; - const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; - const GLint rowAa0 = (rowA[j] >> 30) & 0x3; - const GLint rowAa1 = (rowA[k] >> 30) & 0x3; - const GLint rowBa0 = (rowB[j] >> 30) & 0x3; - const GLint rowBa1 = (rowB[k] >> 30) & 0x3; - 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 << 30) | (blue << 20) | (green << 10) | red; - } - } - - 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 if ((datatype == GL_UNSIGNED_INT_2_10_10_10_REV) && (comps == 4)) { - DECLARE_ROW_POINTERS0(GLuint); - - for (i = j = 0, k = k0; i < (GLuint) dstWidth; - i++, j += colStride, k += colStride) { - const GLint rowAr0 = rowA[j] & 0x3ff; - const GLint rowAr1 = rowA[k] & 0x3ff; - const GLint rowBr0 = rowB[j] & 0x3ff; - const GLint rowBr1 = rowB[k] & 0x3ff; - const GLint rowCr0 = rowC[j] & 0x3ff; - const GLint rowCr1 = rowC[k] & 0x3ff; - const GLint rowDr0 = rowD[j] & 0x3ff; - const GLint rowDr1 = rowD[k] & 0x3ff; - const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; - const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; - const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; - const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; - const GLint rowCg0 = (rowC[j] >> 10) & 0x3ff; - const GLint rowCg1 = (rowC[k] >> 10) & 0x3ff; - const GLint rowDg0 = (rowD[j] >> 10) & 0x3ff; - const GLint rowDg1 = (rowD[k] >> 10) & 0x3ff; - const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; - const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; - const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; - const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; - const GLint rowCb0 = (rowC[j] >> 20) & 0x3ff; - const GLint rowCb1 = (rowC[k] >> 20) & 0x3ff; - const GLint rowDb0 = (rowD[j] >> 20) & 0x3ff; - const GLint rowDb1 = (rowD[k] >> 20) & 0x3ff; - const GLint rowAa0 = (rowA[j] >> 30) & 0x3; - const GLint rowAa1 = (rowA[k] >> 30) & 0x3; - const GLint rowBa0 = (rowB[j] >> 30) & 0x3; - const GLint rowBa1 = (rowB[k] >> 30) & 0x3; - const GLint rowCa0 = (rowC[j] >> 30) & 0x3; - const GLint rowCa1 = (rowC[k] >> 30) & 0x3; - const GLint rowDa0 = (rowD[j] >> 30) & 0x3; - const GLint rowDa1 = (rowD[k] >> 30) & 0x3; - 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 << 30) | (b << 20) | (g << 10) | 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); - - _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" +#include "macros.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_r11g11b10f.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 if (datatype == GL_UNSIGNED_INT_2_10_10_10_REV && comps == 4) { + 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) { + const GLint rowAr0 = rowA[j] & 0x3ff; + const GLint rowAr1 = rowA[k] & 0x3ff; + const GLint rowBr0 = rowB[j] & 0x3ff; + const GLint rowBr1 = rowB[k] & 0x3ff; + const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; + const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; + const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; + const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; + const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; + const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; + const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; + const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; + const GLint rowAa0 = (rowA[j] >> 30) & 0x3; + const GLint rowAa1 = (rowA[k] >> 30) & 0x3; + const GLint rowBa0 = (rowB[j] >> 30) & 0x3; + const GLint rowBa1 = (rowB[k] >> 30) & 0x3; + 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 << 30) | (blue << 20) | (green << 10) | red; + } + } + + else if (datatype == GL_UNSIGNED_INT_5_9_9_9_REV && comps == 3) { + GLuint i, j, k; + const GLuint *rowA = (const GLuint*) srcRowA; + const GLuint *rowB = (const GLuint*) srcRowB; + GLuint *dst = (GLuint*)dstRow; + GLfloat res[3], rowAj[3], rowBj[3], rowAk[3], rowBk[3]; + for (i = j = 0, k = k0; i < (GLuint) dstWidth; + i++, j += colStride, k += colStride) { + rgb9e5_to_float3(rowA[j], rowAj); + rgb9e5_to_float3(rowB[j], rowBj); + rgb9e5_to_float3(rowA[k], rowAk); + rgb9e5_to_float3(rowB[k], rowBk); + res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0]) * 0.25F; + res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1]) * 0.25F; + res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2]) * 0.25F; + dst[i] = float3_to_rgb9e5(res); + } + } + + else if (datatype == GL_UNSIGNED_INT_10F_11F_11F_REV && comps == 3) { + GLuint i, j, k; + const GLuint *rowA = (const GLuint*) srcRowA; + const GLuint *rowB = (const GLuint*) srcRowB; + GLuint *dst = (GLuint*)dstRow; + GLfloat res[3], rowAj[3], rowBj[3], rowAk[3], rowBk[3]; + for (i = j = 0, k = k0; i < (GLuint) dstWidth; + i++, j += colStride, k += colStride) { + r11g11b10f_to_float3(rowA[j], rowAj); + r11g11b10f_to_float3(rowB[j], rowBj); + r11g11b10f_to_float3(rowA[k], rowAk); + r11g11b10f_to_float3(rowB[k], rowBk); + res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0]) * 0.25F; + res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1]) * 0.25F; + res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2]) * 0.25F; + dst[i] = float3_to_r11g11b10f(res); + } + } + + 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 if ((datatype == GL_UNSIGNED_INT_2_10_10_10_REV) && (comps == 4)) { + DECLARE_ROW_POINTERS0(GLuint); + + for (i = j = 0, k = k0; i < (GLuint) dstWidth; + i++, j += colStride, k += colStride) { + const GLint rowAr0 = rowA[j] & 0x3ff; + const GLint rowAr1 = rowA[k] & 0x3ff; + const GLint rowBr0 = rowB[j] & 0x3ff; + const GLint rowBr1 = rowB[k] & 0x3ff; + const GLint rowCr0 = rowC[j] & 0x3ff; + const GLint rowCr1 = rowC[k] & 0x3ff; + const GLint rowDr0 = rowD[j] & 0x3ff; + const GLint rowDr1 = rowD[k] & 0x3ff; + const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; + const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; + const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; + const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; + const GLint rowCg0 = (rowC[j] >> 10) & 0x3ff; + const GLint rowCg1 = (rowC[k] >> 10) & 0x3ff; + const GLint rowDg0 = (rowD[j] >> 10) & 0x3ff; + const GLint rowDg1 = (rowD[k] >> 10) & 0x3ff; + const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; + const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; + const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; + const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; + const GLint rowCb0 = (rowC[j] >> 20) & 0x3ff; + const GLint rowCb1 = (rowC[k] >> 20) & 0x3ff; + const GLint rowDb0 = (rowD[j] >> 20) & 0x3ff; + const GLint rowDb1 = (rowD[k] >> 20) & 0x3ff; + const GLint rowAa0 = (rowA[j] >> 30) & 0x3; + const GLint rowAa1 = (rowA[k] >> 30) & 0x3; + const GLint rowBa0 = (rowB[j] >> 30) & 0x3; + const GLint rowBa1 = (rowB[k] >> 30) & 0x3; + const GLint rowCa0 = (rowC[j] >> 30) & 0x3; + const GLint rowCa1 = (rowC[k] >> 30) & 0x3; + const GLint rowDa0 = (rowD[j] >> 30) & 0x3; + const GLint rowDa1 = (rowD[k] >> 30) & 0x3; + 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 << 30) | (b << 20) | (g << 10) | r; + } + } + + else if (datatype == GL_UNSIGNED_INT_5_9_9_9_REV && comps == 3) { + DECLARE_ROW_POINTERS0(GLuint); + + GLfloat res[3]; + GLfloat rowAj[3], rowBj[3], rowCj[3], rowDj[3]; + GLfloat rowAk[3], rowBk[3], rowCk[3], rowDk[3]; + + for (i = j = 0, k = k0; i < (GLuint) dstWidth; + i++, j += colStride, k += colStride) { + rgb9e5_to_float3(rowA[j], rowAj); + rgb9e5_to_float3(rowB[j], rowBj); + rgb9e5_to_float3(rowC[j], rowCj); + rgb9e5_to_float3(rowD[j], rowDj); + rgb9e5_to_float3(rowA[k], rowAk); + rgb9e5_to_float3(rowB[k], rowBk); + rgb9e5_to_float3(rowC[k], rowCk); + rgb9e5_to_float3(rowD[k], rowDk); + res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0] + + rowCj[0] + rowCk[0] + rowDj[0] + rowDk[0]) * 0.125F; + res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1] + + rowCj[1] + rowCk[1] + rowDj[1] + rowDk[1]) * 0.125F; + res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2] + + rowCj[2] + rowCk[2] + rowDj[2] + rowDk[2]) * 0.125F; + dst[i] = float3_to_rgb9e5(res); + } + } + + else if (datatype == GL_UNSIGNED_INT_10F_11F_11F_REV && comps == 3) { + DECLARE_ROW_POINTERS0(GLuint); + + GLfloat res[3]; + GLfloat rowAj[3], rowBj[3], rowCj[3], rowDj[3]; + GLfloat rowAk[3], rowBk[3], rowCk[3], rowDk[3]; + + for (i = j = 0, k = k0; i < (GLuint) dstWidth; + i++, j += colStride, k += colStride) { + r11g11b10f_to_float3(rowA[j], rowAj); + r11g11b10f_to_float3(rowB[j], rowBj); + r11g11b10f_to_float3(rowC[j], rowCj); + r11g11b10f_to_float3(rowD[j], rowDj); + r11g11b10f_to_float3(rowA[k], rowAk); + r11g11b10f_to_float3(rowB[k], rowBk); + r11g11b10f_to_float3(rowC[k], rowCk); + r11g11b10f_to_float3(rowD[k], rowDk); + res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0] + + rowCj[0] + rowCk[0] + rowDj[0] + rowDk[0]) * 0.125F; + res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1] + + rowCj[1] + rowCk[1] + rowDj[1] + rowDk[1]) * 0.125F; + res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2] + + rowCj[2] + rowCk[2] + rowDj[2] + rowDk[2]) * 0.125F; + dst[i] = float3_to_r11g11b10f(res); + } + } + + 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); + + _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/pack.c b/mesalib/src/mesa/main/pack.c index ad8ab9d00..e6734bbbc 100644 --- a/mesalib/src/mesa/main/pack.c +++ b/mesalib/src/mesa/main/pack.c @@ -1,5053 +1,5196 @@ -/* - * Mesa 3-D graphics library - * - * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. - * Copyright (C) 2009-2010 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 - * THEA AUTHORS 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 pack.c - * Image and pixel span packing and unpacking. - */ - - -#include "glheader.h" -#include "colormac.h" -#include "enums.h" -#include "image.h" -#include "imports.h" -#include "mtypes.h" -#include "pack.h" -#include "pixeltransfer.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 ) - - -/** - * Flip the 8 bits in each byte of the given array. - * - * \param p array. - * \param n number of bytes. - * - * \todo try this trick to flip bytes someday: - * \code - * v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); - * v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); - * v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); - * \endcode - */ -static void -flip_bytes( GLubyte *p, GLuint n ) -{ - GLuint i, a, b; - for (i = 0; i < n; i++) { - b = (GLuint) p[i]; /* words are often faster than bytes */ - a = ((b & 0x01) << 7) | - ((b & 0x02) << 5) | - ((b & 0x04) << 3) | - ((b & 0x08) << 1) | - ((b & 0x10) >> 1) | - ((b & 0x20) >> 3) | - ((b & 0x40) >> 5) | - ((b & 0x80) >> 7); - p[i] = (GLubyte) a; - } -} - - - -/* - * Unpack a 32x32 pixel polygon stipple from user memory using the - * current pixel unpack settings. - */ -void -_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32], - const struct gl_pixelstore_attrib *unpacking ) -{ - GLubyte *ptrn = (GLubyte *) _mesa_unpack_bitmap(32, 32, pattern, unpacking); - if (ptrn) { - /* Convert pattern from GLubytes to GLuints and handle big/little - * endian differences - */ - GLubyte *p = ptrn; - GLint i; - for (i = 0; i < 32; i++) { - dest[i] = (p[0] << 24) - | (p[1] << 16) - | (p[2] << 8) - | (p[3] ); - p += 4; - } - free(ptrn); - } -} - - -/* - * Pack polygon stipple into user memory given current pixel packing - * settings. - */ -void -_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest, - const struct gl_pixelstore_attrib *packing ) -{ - /* Convert pattern from GLuints to GLubytes to handle big/little - * endian differences. - */ - GLubyte ptrn[32*4]; - GLint i; - for (i = 0; i < 32; i++) { - ptrn[i * 4 + 0] = (GLubyte) ((pattern[i] >> 24) & 0xff); - ptrn[i * 4 + 1] = (GLubyte) ((pattern[i] >> 16) & 0xff); - ptrn[i * 4 + 2] = (GLubyte) ((pattern[i] >> 8 ) & 0xff); - ptrn[i * 4 + 3] = (GLubyte) ((pattern[i] ) & 0xff); - } - - _mesa_pack_bitmap(32, 32, ptrn, dest, packing); -} - - -/* - * Unpack bitmap data. Resulting data will be in most-significant-bit-first - * order with row alignment = 1 byte. - */ -GLvoid * -_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels, - const struct gl_pixelstore_attrib *packing ) -{ - GLint bytes, row, width_in_bytes; - GLubyte *buffer, *dst; - - if (!pixels) - return NULL; - - /* Alloc dest storage */ - bytes = ((width + 7) / 8 * height); - buffer = (GLubyte *) malloc( bytes ); - if (!buffer) - return NULL; - - width_in_bytes = CEILING( width, 8 ); - dst = buffer; - for (row = 0; row < height; row++) { - const GLubyte *src = (const GLubyte *) - _mesa_image_address2d(packing, pixels, width, height, - GL_COLOR_INDEX, GL_BITMAP, row, 0); - if (!src) { - free(buffer); - return NULL; - } - - if ((packing->SkipPixels & 7) == 0) { - memcpy( dst, src, width_in_bytes ); - if (packing->LsbFirst) { - flip_bytes( dst, width_in_bytes ); - } - } - else { - /* handling SkipPixels is a bit tricky (no pun intended!) */ - GLint i; - if (packing->LsbFirst) { - GLubyte srcMask = 1 << (packing->SkipPixels & 0x7); - GLubyte dstMask = 128; - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 128) { - srcMask = 1; - s++; - } - else { - srcMask = srcMask << 1; - } - if (dstMask == 1) { - dstMask = 128; - d++; - *d = 0; - } - else { - dstMask = dstMask >> 1; - } - } - } - else { - GLubyte srcMask = 128 >> (packing->SkipPixels & 0x7); - GLubyte dstMask = 128; - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 1) { - srcMask = 128; - s++; - } - else { - srcMask = srcMask >> 1; - } - if (dstMask == 1) { - dstMask = 128; - d++; - *d = 0; - } - else { - dstMask = dstMask >> 1; - } - } - } - } - dst += width_in_bytes; - } - - return buffer; -} - - -/* - * Pack bitmap data. - */ -void -_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source, - GLubyte *dest, const struct gl_pixelstore_attrib *packing ) -{ - GLint row, width_in_bytes; - const GLubyte *src; - - if (!source) - return; - - width_in_bytes = CEILING( width, 8 ); - src = source; - for (row = 0; row < height; row++) { - GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dest, - width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); - if (!dst) - return; - - if ((packing->SkipPixels & 7) == 0) { - memcpy( dst, src, width_in_bytes ); - if (packing->LsbFirst) { - flip_bytes( dst, width_in_bytes ); - } - } - else { - /* handling SkipPixels is a bit tricky (no pun intended!) */ - GLint i; - if (packing->LsbFirst) { - GLubyte srcMask = 128; - GLubyte dstMask = 1 << (packing->SkipPixels & 0x7); - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 1) { - srcMask = 128; - s++; - } - else { - srcMask = srcMask >> 1; - } - if (dstMask == 128) { - dstMask = 1; - d++; - *d = 0; - } - else { - dstMask = dstMask << 1; - } - } - } - else { - GLubyte srcMask = 128; - GLubyte dstMask = 128 >> (packing->SkipPixels & 0x7); - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 1) { - srcMask = 128; - s++; - } - else { - srcMask = srcMask >> 1; - } - if (dstMask == 1) { - dstMask = 128; - d++; - *d = 0; - } - else { - dstMask = dstMask >> 1; - } - } - } - } - src += width_in_bytes; - } -} - - -/** - * Get indexes of color components for a basic color format, such as - * GL_RGBA, GL_RED, GL_LUMINANCE_ALPHA, etc. Return -1 for indexes - * that do not apply. - */ -static void -get_component_indexes(GLenum format, - GLint *redIndex, - GLint *greenIndex, - GLint *blueIndex, - GLint *alphaIndex, - GLint *luminanceIndex, - GLint *intensityIndex) -{ - *redIndex = -1; - *greenIndex = -1; - *blueIndex = -1; - *alphaIndex = -1; - *luminanceIndex = -1; - *intensityIndex = -1; - - switch (format) { - case GL_LUMINANCE: - case GL_LUMINANCE_INTEGER_EXT: - *luminanceIndex = 0; - break; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - *luminanceIndex = 0; - *alphaIndex = 1; - break; - case GL_INTENSITY: - *intensityIndex = 0; - break; - case GL_RED: - case GL_RED_INTEGER_EXT: - *redIndex = 0; - break; - case GL_GREEN: - case GL_GREEN_INTEGER_EXT: - *greenIndex = 0; - break; - case GL_BLUE: - case GL_BLUE_INTEGER_EXT: - *blueIndex = 0; - break; - case GL_ALPHA: - case GL_ALPHA_INTEGER_EXT: - *alphaIndex = 0; - break; - case GL_RG: - case GL_RG_INTEGER: - *redIndex = 0; - *greenIndex = 1; - break; - case GL_RGB: - case GL_RGB_INTEGER_EXT: - *redIndex = 0; - *greenIndex = 1; - *blueIndex = 2; - break; - case GL_BGR: - case GL_BGR_INTEGER_EXT: - *blueIndex = 0; - *greenIndex = 1; - *redIndex = 2; - break; - case GL_RGBA: - case GL_RGBA_INTEGER_EXT: - *redIndex = 0; - *greenIndex = 1; - *blueIndex = 2; - *alphaIndex = 3; - break; - case GL_BGRA: - case GL_BGRA_INTEGER: - *redIndex = 2; - *greenIndex = 1; - *blueIndex = 0; - *alphaIndex = 3; - break; - case GL_ABGR_EXT: - *redIndex = 3; - *greenIndex = 2; - *blueIndex = 1; - *alphaIndex = 0; - break; - case GL_DU8DV8_ATI: - case GL_DUDV_ATI: - *redIndex = 0; - *greenIndex = 1; - break; - default: - assert(0 && "bad format in get_component_indexes()"); - } -} - - - -/** - * For small integer types, return the min and max possible values. - * Used for clamping floats to unscaled integer types. - * \return GL_TRUE if type is handled, GL_FALSE otherwise. - */ -static GLboolean -get_type_min_max(GLenum type, GLfloat *min, GLfloat *max) -{ - switch (type) { - case GL_BYTE: - *min = -128.0; - *max = 127.0; - return GL_TRUE; - case GL_UNSIGNED_BYTE: - *min = 0.0; - *max = 255.0; - return GL_TRUE; - case GL_SHORT: - *min = -32768.0; - *max = 32767.0; - return GL_TRUE; - case GL_UNSIGNED_SHORT: - *min = 0.0; - *max = 65535.0; - return GL_TRUE; - default: - return GL_FALSE; - } -} - - - -/** - * Used to pack an array [][4] of RGBA float colors as specified - * by the dstFormat, dstType and dstPacking. Used by glReadPixels. - * Historically, the RGBA values were in [0,1] and rescaled to fit - * into GLubytes, etc. But with new integer formats, the RGBA values - * may have any value and we don't always rescale when converting to - * integers. - * - * Note: the rgba values will be modified by this function when any pixel - * transfer ops are enabled. - */ -void -_mesa_pack_rgba_span_float(struct gl_context *ctx, GLuint n, GLfloat rgba[][4], - GLenum dstFormat, GLenum dstType, - GLvoid *dstAddr, - const struct gl_pixelstore_attrib *dstPacking, - GLbitfield transferOps) -{ - GLfloat *luminance; - const GLint comps = _mesa_components_in_format(dstFormat); - const GLboolean intDstFormat = _mesa_is_integer_format(dstFormat); - GLuint i; - - if (dstFormat == GL_LUMINANCE || - dstFormat == GL_LUMINANCE_ALPHA || - dstFormat == GL_LUMINANCE_INTEGER_EXT || - dstFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT) { - luminance = (GLfloat *) malloc(n * sizeof(GLfloat)); - if (!luminance) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); - return; - } - } - else { - luminance = NULL; - } - - if (transferOps) { - _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); - } - - /* - * Component clamping (besides clamping to [0,1] in - * _mesa_apply_rgba_transfer_ops()). - */ - if (intDstFormat) { - /* clamping to dest type's min/max values */ - GLfloat min, max; - if (get_type_min_max(dstType, &min, &max)) { - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], min, max); - rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], min, max); - rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], min, max); - rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], min, max); - } - } - } - else if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) { - /* compute luminance values */ - if (transferOps & IMAGE_CLAMP_BIT) { - for (i = 0; i < n; i++) { - GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; - luminance[i] = CLAMP(sum, 0.0F, 1.0F); - } - } - else { - for (i = 0; i < n; i++) { - luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; - } - } - } - - /* - * Pack/store the pixels. Ugh! Lots of cases!!! - */ - switch (dstType) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) dstAddr; - switch (dstFormat) { - case GL_RED: - for (i=0;iSwapBytes) { - GLint swapSize = _mesa_sizeof_packed_type(dstType); - if (swapSize == 2) { - if (dstPacking->SwapBytes) { - _mesa_swap2((GLushort *) dstAddr, n * comps); - } - } - else if (swapSize == 4) { - if (dstPacking->SwapBytes) { - _mesa_swap4((GLuint *) dstAddr, n * comps); - } - } - } - - free(luminance); -} - - - -#define SWAP2BYTE(VALUE) \ - { \ - GLubyte *bytes = (GLubyte *) &(VALUE); \ - GLubyte tmp = bytes[0]; \ - bytes[0] = bytes[1]; \ - bytes[1] = tmp; \ - } - -#define SWAP4BYTE(VALUE) \ - { \ - GLubyte *bytes = (GLubyte *) &(VALUE); \ - GLubyte tmp = bytes[0]; \ - bytes[0] = bytes[3]; \ - bytes[3] = tmp; \ - tmp = bytes[1]; \ - bytes[1] = bytes[2]; \ - bytes[2] = tmp; \ - } - - -static void -extract_uint_indexes(GLuint n, GLuint indexes[], - GLenum srcFormat, GLenum srcType, const GLvoid *src, - const struct gl_pixelstore_attrib *unpack ) -{ - ASSERT(srcFormat == GL_COLOR_INDEX || srcFormat == GL_STENCIL_INDEX); - - ASSERT(srcType == GL_BITMAP || - srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_UNSIGNED_INT_24_8_EXT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT); - - switch (srcType) { - case GL_BITMAP: - { - GLubyte *ubsrc = (GLubyte *) src; - if (unpack->LsbFirst) { - GLubyte mask = 1 << (unpack->SkipPixels & 0x7); - GLuint i; - for (i = 0; i < n; i++) { - indexes[i] = (*ubsrc & mask) ? 1 : 0; - if (mask == 128) { - mask = 1; - ubsrc++; - } - else { - mask = mask << 1; - } - } - } - else { - GLubyte mask = 128 >> (unpack->SkipPixels & 0x7); - GLuint i; - for (i = 0; i < n; i++) { - indexes[i] = (*ubsrc & mask) ? 1 : 0; - if (mask == 1) { - mask = 128; - ubsrc++; - } - else { - mask = mask >> 1; - } - } - } - } - break; - case GL_UNSIGNED_BYTE: - { - GLuint i; - const GLubyte *s = (const GLubyte *) src; - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - break; - case GL_BYTE: - { - GLuint i; - const GLbyte *s = (const GLbyte *) src; - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - break; - case GL_UNSIGNED_SHORT: - { - GLuint i; - const GLushort *s = (const GLushort *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLushort value = s[i]; - SWAP2BYTE(value); - indexes[i] = value; - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - } - break; - case GL_SHORT: - { - GLuint i; - const GLshort *s = (const GLshort *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLshort value = s[i]; - SWAP2BYTE(value); - indexes[i] = value; - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - } - break; - case GL_UNSIGNED_INT: - { - GLuint i; - const GLuint *s = (const GLuint *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLuint value = s[i]; - SWAP4BYTE(value); - indexes[i] = value; - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - } - break; - case GL_INT: - { - GLuint i; - const GLint *s = (const GLint *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLint value = s[i]; - SWAP4BYTE(value); - indexes[i] = value; - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = s[i]; - } - } - break; - case GL_FLOAT: - { - GLuint i; - const GLfloat *s = (const GLfloat *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLfloat value = s[i]; - SWAP4BYTE(value); - indexes[i] = (GLuint) value; - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = (GLuint) s[i]; - } - } - break; - case GL_HALF_FLOAT_ARB: - { - GLuint i; - const GLhalfARB *s = (const GLhalfARB *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLhalfARB value = s[i]; - SWAP2BYTE(value); - indexes[i] = (GLuint) _mesa_half_to_float(value); - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = (GLuint) _mesa_half_to_float(s[i]); - } - } - break; - case GL_UNSIGNED_INT_24_8_EXT: - { - GLuint i; - const GLuint *s = (const GLuint *) src; - if (unpack->SwapBytes) { - for (i = 0; i < n; i++) { - GLuint value = s[i]; - SWAP4BYTE(value); - indexes[i] = value & 0xff; /* lower 8 bits */ - } - } - else { - for (i = 0; i < n; i++) - indexes[i] = s[i] & 0xff; /* lower 8 bits */ - } - } - break; - - default: - _mesa_problem(NULL, "bad srcType in extract_uint_indexes"); - return; - } -} - - -/** - * Return source/dest RGBA indexes for unpacking pixels. - */ -static void -get_component_mapping(GLenum format, - GLint *rSrc, - GLint *gSrc, - GLint *bSrc, - GLint *aSrc, - GLint *rDst, - GLint *gDst, - GLint *bDst, - GLint *aDst) -{ - switch (format) { - case GL_RED: - case GL_RED_INTEGER_EXT: - *rSrc = 0; - *gSrc = *bSrc = *aSrc = -1; - break; - case GL_GREEN: - case GL_GREEN_INTEGER_EXT: - *gSrc = 0; - *rSrc = *bSrc = *aSrc = -1; - break; - case GL_BLUE: - case GL_BLUE_INTEGER_EXT: - *bSrc = 0; - *rSrc = *gSrc = *aSrc = -1; - break; - case GL_ALPHA: - case GL_ALPHA_INTEGER_EXT: - *rSrc = *gSrc = *bSrc = -1; - *aSrc = 0; - break; - case GL_LUMINANCE: - case GL_LUMINANCE_INTEGER_EXT: - *rSrc = *gSrc = *bSrc = 0; - *aSrc = -1; - break; - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE_ALPHA_INTEGER_EXT: - *rSrc = *gSrc = *bSrc = 0; - *aSrc = 1; - break; - case GL_INTENSITY: - *rSrc = *gSrc = *bSrc = *aSrc = 0; - break; - case GL_RG: - case GL_RG_INTEGER: - *rSrc = 0; - *gSrc = 1; - *bSrc = -1; - *aSrc = -1; - *rDst = 0; - *gDst = 1; - *bDst = 2; - *aDst = 3; - break; - case GL_RGB: - case GL_RGB_INTEGER: - *rSrc = 0; - *gSrc = 1; - *bSrc = 2; - *aSrc = -1; - *rDst = 0; - *gDst = 1; - *bDst = 2; - *aDst = 3; - break; - case GL_BGR: - *rSrc = 2; - *gSrc = 1; - *bSrc = 0; - *aSrc = -1; - *rDst = 2; - *gDst = 1; - *bDst = 0; - *aDst = 3; - break; - case GL_RGBA: - case GL_RGBA_INTEGER: - *rSrc = 0; - *gSrc = 1; - *bSrc = 2; - *aSrc = 3; - *rDst = 0; - *gDst = 1; - *bDst = 2; - *aDst = 3; - break; - case GL_BGRA: - *rSrc = 2; - *gSrc = 1; - *bSrc = 0; - *aSrc = 3; - *rDst = 2; - *gDst = 1; - *bDst = 0; - *aDst = 3; - break; - case GL_ABGR_EXT: - *rSrc = 3; - *gSrc = 2; - *bSrc = 1; - *aSrc = 0; - *rDst = 3; - *gDst = 2; - *bDst = 1; - *aDst = 0; - break; - case GL_DU8DV8_ATI: - case GL_DUDV_ATI: - *rSrc = 0; - *gSrc = 1; - *bSrc = -1; - *aSrc = -1; - break; - default: - _mesa_problem(NULL, "bad srcFormat %s in get_component_mapping", - _mesa_lookup_enum_by_nr(format)); - return; - } -} - - - -/* - * This function extracts floating point RGBA values from arbitrary - * image data. srcFormat and srcType are the format and type parameters - * passed to glDrawPixels, glTexImage[123]D, glTexSubImage[123]D, etc. - * - * Refering to section 3.6.4 of the OpenGL 1.2 spec, this function - * implements the "Conversion to floating point", "Conversion to RGB", - * and "Final Expansion to RGBA" operations. - * - * Args: n - number of pixels - * rgba - output colors - * srcFormat - format of incoming data - * srcType - data type of incoming data - * src - source data pointer - * swapBytes - perform byteswapping of incoming data? - */ -static void -extract_float_rgba(GLuint n, GLfloat rgba[][4], - GLenum srcFormat, GLenum srcType, const GLvoid *src, - GLboolean swapBytes) -{ - GLint rSrc, gSrc, bSrc, aSrc; - GLint stride; - GLint rDst, bDst, gDst, aDst; - GLboolean intFormat; - GLfloat rs = 1.0f, gs = 1.0f, bs = 1.0f, as = 1.0f; /* scale factors */ - - ASSERT(srcFormat == GL_RED || - srcFormat == GL_GREEN || - srcFormat == GL_BLUE || - srcFormat == GL_ALPHA || - srcFormat == GL_LUMINANCE || - srcFormat == GL_LUMINANCE_ALPHA || - srcFormat == GL_INTENSITY || - srcFormat == GL_RG || - srcFormat == GL_RGB || - srcFormat == GL_BGR || - srcFormat == GL_RGBA || - srcFormat == GL_BGRA || - srcFormat == GL_ABGR_EXT || - srcFormat == GL_DU8DV8_ATI || - srcFormat == GL_DUDV_ATI || - srcFormat == GL_RED_INTEGER_EXT || - srcFormat == GL_GREEN_INTEGER_EXT || - srcFormat == GL_BLUE_INTEGER_EXT || - srcFormat == GL_ALPHA_INTEGER_EXT || - srcFormat == GL_RGB_INTEGER_EXT || - srcFormat == GL_RGBA_INTEGER_EXT || - srcFormat == GL_BGR_INTEGER_EXT || - srcFormat == GL_BGRA_INTEGER_EXT || - srcFormat == GL_LUMINANCE_INTEGER_EXT || - srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); - - ASSERT(srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT || - srcType == GL_UNSIGNED_BYTE_3_3_2 || - srcType == GL_UNSIGNED_BYTE_2_3_3_REV || - srcType == GL_UNSIGNED_SHORT_5_6_5 || - srcType == GL_UNSIGNED_SHORT_5_6_5_REV || - srcType == GL_UNSIGNED_SHORT_4_4_4_4 || - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || - srcType == GL_UNSIGNED_SHORT_5_5_5_1 || - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV || - srcType == GL_UNSIGNED_INT_10_10_10_2 || - srcType == GL_UNSIGNED_INT_2_10_10_10_REV); - - get_component_mapping(srcFormat, - &rSrc, &gSrc, &bSrc, &aSrc, - &rDst, &gDst, &bDst, &aDst); - - stride = _mesa_components_in_format(srcFormat); - - intFormat = _mesa_is_integer_format(srcFormat); - -#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT_FLT, DEFAULT_INT, TYPE, CONVERSION) \ - if ((SRC_INDEX) < 0) { \ - GLuint i; \ - if (intFormat) { \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = DEFAULT_INT; \ - } \ - } \ - else { \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = DEFAULT_FLT; \ - } \ - } \ - } \ - else if (swapBytes) { \ - const TYPE *s = (const TYPE *) src; \ - GLuint i; \ - for (i = 0; i < n; i++) { \ - TYPE value = s[SRC_INDEX]; \ - if (sizeof(TYPE) == 2) { \ - SWAP2BYTE(value); \ - } \ - else if (sizeof(TYPE) == 4) { \ - SWAP4BYTE(value); \ - } \ - if (intFormat) \ - rgba[i][DST_INDEX] = (GLfloat) value; \ - else \ - rgba[i][DST_INDEX] = (GLfloat) CONVERSION(value); \ - s += stride; \ - } \ - } \ - else { \ - const TYPE *s = (const TYPE *) src; \ - GLuint i; \ - if (intFormat) { \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = (GLfloat) s[SRC_INDEX]; \ - s += stride; \ - } \ - } \ - else { \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = (GLfloat) CONVERSION(s[SRC_INDEX]); \ - s += stride; \ - } \ - } \ - } - - switch (srcType) { - case GL_UNSIGNED_BYTE: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 255, GLubyte, UBYTE_TO_FLOAT); - break; - case GL_BYTE: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 127, GLbyte, BYTE_TO_FLOAT); - break; - case GL_UNSIGNED_SHORT: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 0xffff, GLushort, USHORT_TO_FLOAT); - break; - case GL_SHORT: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 32767, GLshort, SHORT_TO_FLOAT); - break; - case GL_UNSIGNED_INT: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 0xffffffff, GLuint, UINT_TO_FLOAT); - break; - case GL_INT: - PROCESS(rSrc, RCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); - PROCESS(gSrc, GCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); - PROCESS(bSrc, BCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); - PROCESS(aSrc, ACOMP, 1.0F, 2147483647, GLint, INT_TO_FLOAT); - break; - case GL_FLOAT: - PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); - PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); - PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); - PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLfloat, (GLfloat)); - break; - case GL_HALF_FLOAT_ARB: - PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); - PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); - PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); - PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLhalfARB, _mesa_half_to_float); - break; - case GL_UNSIGNED_BYTE_3_3_2: - { - const GLubyte *ubsrc = (const GLubyte *) src; - GLuint i; - if (!intFormat) { - rs = 1.0F / 7.0F; - gs = 1.0F / 7.0F; - bs = 1.0F / 3.0F; - } - for (i = 0; i < n; i ++) { - GLubyte p = ubsrc[i]; - rgba[i][rDst] = ((p >> 5) ) * rs; - rgba[i][gDst] = ((p >> 2) & 0x7) * gs; - rgba[i][bDst] = ((p ) & 0x3) * bs; - rgba[i][aDst] = 1.0F; - } - } - break; - case GL_UNSIGNED_BYTE_2_3_3_REV: - { - const GLubyte *ubsrc = (const GLubyte *) src; - GLuint i; - if (!intFormat) { - rs = 1.0F / 7.0F; - gs = 1.0F / 7.0F; - bs = 1.0F / 3.0F; - } - for (i = 0; i < n; i ++) { - GLubyte p = ubsrc[i]; - rgba[i][rDst] = ((p ) & 0x7) * rs; - rgba[i][gDst] = ((p >> 3) & 0x7) * gs; - rgba[i][bDst] = ((p >> 6) ) * bs; - rgba[i][aDst] = 1.0F; - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5: - if (!intFormat) { - rs = 1.0F / 31.0F; - gs = 1.0F / 63.0F; - bs = 1.0F / 31.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 11) ) * rs; - rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; - rgba[i][bDst] = ((p ) & 0x1f) * bs; - rgba[i][aDst] = 1.0F; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 11) ) * rs; - rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; - rgba[i][bDst] = ((p ) & 0x1f) * bs; - rgba[i][aDst] = 1.0F; - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5_REV: - if (!intFormat) { - rs = 1.0F / 31.0F; - gs = 1.0F / 63.0F; - bs = 1.0F / 31.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0x1f) * rs; - rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; - rgba[i][bDst] = ((p >> 11) ) * bs; - rgba[i][aDst] = 1.0F; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0x1f) * rs; - rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; - rgba[i][bDst] = ((p >> 11) ) * bs; - rgba[i][aDst] = 1.0F; - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4: - if (!intFormat) { - rs = gs = bs = as = 1.0F / 15.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 12) ) * rs; - rgba[i][gDst] = ((p >> 8) & 0xf) * gs; - rgba[i][bDst] = ((p >> 4) & 0xf) * bs; - rgba[i][aDst] = ((p ) & 0xf) * as; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 12) ) * rs; - rgba[i][gDst] = ((p >> 8) & 0xf) * gs; - rgba[i][bDst] = ((p >> 4) & 0xf) * bs; - rgba[i][aDst] = ((p ) & 0xf) * as; - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - if (!intFormat) { - rs = gs = bs = as = 1.0F / 15.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0xf) * rs; - rgba[i][gDst] = ((p >> 4) & 0xf) * gs; - rgba[i][bDst] = ((p >> 8) & 0xf) * bs; - rgba[i][aDst] = ((p >> 12) ) * as; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0xf) * rs; - rgba[i][gDst] = ((p >> 4) & 0xf) * gs; - rgba[i][bDst] = ((p >> 8) & 0xf) * bs; - rgba[i][aDst] = ((p >> 12) ) * as; - } - } - break; - case GL_UNSIGNED_SHORT_5_5_5_1: - if (!intFormat) { - rs = gs = bs = 1.0F / 31.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 11) ) * rs; - rgba[i][gDst] = ((p >> 6) & 0x1f) * gs; - rgba[i][bDst] = ((p >> 1) & 0x1f) * bs; - rgba[i][aDst] = ((p ) & 0x1) * as; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 11) ) * rs; - rgba[i][gDst] = ((p >> 6) & 0x1f) * gs; - rgba[i][bDst] = ((p >> 1) & 0x1f) * bs; - rgba[i][aDst] = ((p ) & 0x1) * as; - } - } - break; - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - if (!intFormat) { - rs = gs = bs = 1.0F / 31.0F; - } - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0x1f) * rs; - rgba[i][gDst] = ((p >> 5) & 0x1f) * gs; - rgba[i][bDst] = ((p >> 10) & 0x1f) * bs; - rgba[i][aDst] = ((p >> 15) ) * as; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0x1f) * rs; - rgba[i][gDst] = ((p >> 5) & 0x1f) * gs; - rgba[i][bDst] = ((p >> 10) & 0x1f) * bs; - rgba[i][aDst] = ((p >> 15) ) * as; - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - if (intFormat) { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = (GLfloat) ((p ) & 0xff); - rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff); - rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff); - rgba[i][aDst] = (GLfloat) ((p >> 24) ); - } - } - else { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff); - rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); - rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); - rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) ); - } - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - if (intFormat) { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = (GLfloat) ((p >> 24) ); - rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff); - rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff); - rgba[i][aDst] = (GLfloat) ((p ) & 0xff); - } - } - else { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) ); - rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); - rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); - rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff); - } - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8_REV: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - if (intFormat) { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = (GLfloat) ((p >> 24) ); - rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff); - rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff); - rgba[i][aDst] = (GLfloat) ((p ) & 0xff); - } - } - else { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) ); - rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); - rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); - rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff); - } - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - if (intFormat) { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = (GLfloat) ((p ) & 0xff); - rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff); - rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff); - rgba[i][aDst] = (GLfloat) ((p >> 24) ); - } - } - else { - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff); - rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); - rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); - rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) ); - } - } - } - break; - case GL_UNSIGNED_INT_10_10_10_2: - if (!intFormat) { - rs = 1.0F / 1023.0F; - gs = 1.0F / 1023.0F; - bs = 1.0F / 1023.0F; - as = 1.0F / 3.0F; - } - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - SWAP4BYTE(p); - rgba[i][rDst] = ((p >> 22) ) * rs; - rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs; - rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs; - rgba[i][aDst] = ((p ) & 0x3 ) * as; - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p >> 22) ) * rs; - rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs; - rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs; - rgba[i][aDst] = ((p ) & 0x3 ) * as; - } - } - break; - case GL_UNSIGNED_INT_2_10_10_10_REV: - if (!intFormat) { - rs = 1.0F / 1023.0F; - gs = 1.0F / 1023.0F; - bs = 1.0F / 1023.0F; - as = 1.0F / 3.0F; - } - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - SWAP4BYTE(p); - rgba[i][rDst] = ((p ) & 0x3ff) * rs; - rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs; - rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs; - rgba[i][aDst] = ((p >> 30) ) * as; - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p ) & 0x3ff) * rs; - rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs; - rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs; - rgba[i][aDst] = ((p >> 30) ) * as; - } - } - break; - default: - _mesa_problem(NULL, "bad srcType in extract float data"); - break; - } -#undef PROCESS -} - - -static INLINE GLuint -clamp_byte_to_uint(GLbyte b) -{ - return b < 0 ? 0 : b; -} - - -static INLINE GLuint -clamp_short_to_uint(GLshort s) -{ - return s < 0 ? 0 : s; -} - - -static INLINE GLuint -clamp_int_to_uint(GLint i) -{ - return i < 0 ? 0 : i; -} - - -static INLINE GLuint -clamp_float_to_uint(GLfloat f) -{ - return f < 0.0F ? 0 : IROUND(f); -} - - -static INLINE GLuint -clamp_half_to_uint(GLhalfARB h) -{ - GLfloat f = _mesa_half_to_float(h); - return f < 0.0F ? 0 : IROUND(f); -} - - -/** - * \sa extract_float_rgba() - */ -static void -extract_uint_rgba(GLuint n, GLuint rgba[][4], - GLenum srcFormat, GLenum srcType, const GLvoid *src, - GLboolean swapBytes) -{ - GLint rSrc, gSrc, bSrc, aSrc; - GLint stride; - GLint rDst, bDst, gDst, aDst; - GLboolean intFormat; - - ASSERT(srcFormat == GL_RED || - srcFormat == GL_GREEN || - srcFormat == GL_BLUE || - srcFormat == GL_ALPHA || - srcFormat == GL_LUMINANCE || - srcFormat == GL_LUMINANCE_ALPHA || - srcFormat == GL_INTENSITY || - srcFormat == GL_RG || - srcFormat == GL_RGB || - srcFormat == GL_BGR || - srcFormat == GL_RGBA || - srcFormat == GL_BGRA || - srcFormat == GL_ABGR_EXT || - srcFormat == GL_DU8DV8_ATI || - srcFormat == GL_DUDV_ATI || - srcFormat == GL_RED_INTEGER_EXT || - srcFormat == GL_GREEN_INTEGER_EXT || - srcFormat == GL_BLUE_INTEGER_EXT || - srcFormat == GL_ALPHA_INTEGER_EXT || - srcFormat == GL_RGB_INTEGER_EXT || - srcFormat == GL_RGBA_INTEGER_EXT || - srcFormat == GL_BGR_INTEGER_EXT || - srcFormat == GL_BGRA_INTEGER_EXT || - srcFormat == GL_LUMINANCE_INTEGER_EXT || - srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); - - ASSERT(srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT || - srcType == GL_UNSIGNED_BYTE_3_3_2 || - srcType == GL_UNSIGNED_BYTE_2_3_3_REV || - srcType == GL_UNSIGNED_SHORT_5_6_5 || - srcType == GL_UNSIGNED_SHORT_5_6_5_REV || - srcType == GL_UNSIGNED_SHORT_4_4_4_4 || - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || - srcType == GL_UNSIGNED_SHORT_5_5_5_1 || - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV || - srcType == GL_UNSIGNED_INT_10_10_10_2 || - srcType == GL_UNSIGNED_INT_2_10_10_10_REV); - - get_component_mapping(srcFormat, - &rSrc, &gSrc, &bSrc, &aSrc, - &rDst, &gDst, &bDst, &aDst); - - stride = _mesa_components_in_format(srcFormat); - - intFormat = _mesa_is_integer_format(srcFormat); - -#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT, TYPE, CONVERSION) \ - if ((SRC_INDEX) < 0) { \ - GLuint i; \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = DEFAULT; \ - } \ - } \ - else if (swapBytes) { \ - const TYPE *s = (const TYPE *) src; \ - GLuint i; \ - for (i = 0; i < n; i++) { \ - TYPE value = s[SRC_INDEX]; \ - if (sizeof(TYPE) == 2) { \ - SWAP2BYTE(value); \ - } \ - else if (sizeof(TYPE) == 4) { \ - SWAP4BYTE(value); \ - } \ - rgba[i][DST_INDEX] = CONVERSION(value); \ - s += stride; \ - } \ - } \ - else { \ - const TYPE *s = (const TYPE *) src; \ - GLuint i; \ - for (i = 0; i < n; i++) { \ - rgba[i][DST_INDEX] = CONVERSION(s[SRC_INDEX]); \ - s += stride; \ - } \ - } - - switch (srcType) { - case GL_UNSIGNED_BYTE: - PROCESS(rSrc, RCOMP, 0, GLubyte, (GLuint)); - PROCESS(gSrc, GCOMP, 0, GLubyte, (GLuint)); - PROCESS(bSrc, BCOMP, 0, GLubyte, (GLuint)); - PROCESS(aSrc, ACOMP, 1, GLubyte, (GLuint)); - break; - case GL_BYTE: - PROCESS(rSrc, RCOMP, 0, GLbyte, clamp_byte_to_uint); - PROCESS(gSrc, GCOMP, 0, GLbyte, clamp_byte_to_uint); - PROCESS(bSrc, BCOMP, 0, GLbyte, clamp_byte_to_uint); - PROCESS(aSrc, ACOMP, 1, GLbyte, clamp_byte_to_uint); - break; - case GL_UNSIGNED_SHORT: - PROCESS(rSrc, RCOMP, 0, GLushort, (GLuint)); - PROCESS(gSrc, GCOMP, 0, GLushort, (GLuint)); - PROCESS(bSrc, BCOMP, 0, GLushort, (GLuint)); - PROCESS(aSrc, ACOMP, 1, GLushort, (GLuint)); - break; - case GL_SHORT: - PROCESS(rSrc, RCOMP, 0, GLshort, clamp_short_to_uint); - PROCESS(gSrc, GCOMP, 0, GLshort, clamp_short_to_uint); - PROCESS(bSrc, BCOMP, 0, GLshort, clamp_short_to_uint); - PROCESS(aSrc, ACOMP, 1, GLshort, clamp_short_to_uint); - break; - case GL_UNSIGNED_INT: - PROCESS(rSrc, RCOMP, 0, GLuint, (GLuint)); - PROCESS(gSrc, GCOMP, 0, GLuint, (GLuint)); - PROCESS(bSrc, BCOMP, 0, GLuint, (GLuint)); - PROCESS(aSrc, ACOMP, 1, GLuint, (GLuint)); - break; - case GL_INT: - PROCESS(rSrc, RCOMP, 0, GLint, clamp_int_to_uint); - PROCESS(gSrc, GCOMP, 0, GLint, clamp_int_to_uint); - PROCESS(bSrc, BCOMP, 0, GLint, clamp_int_to_uint); - PROCESS(aSrc, ACOMP, 1, GLint, clamp_int_to_uint); - break; - case GL_FLOAT: - PROCESS(rSrc, RCOMP, 0, GLfloat, clamp_float_to_uint); - PROCESS(gSrc, GCOMP, 0, GLfloat, clamp_float_to_uint); - PROCESS(bSrc, BCOMP, 0, GLfloat, clamp_float_to_uint); - PROCESS(aSrc, ACOMP, 1, GLfloat, clamp_float_to_uint); - break; - case GL_HALF_FLOAT_ARB: - PROCESS(rSrc, RCOMP, 0, GLhalfARB, clamp_half_to_uint); - PROCESS(gSrc, GCOMP, 0, GLhalfARB, clamp_half_to_uint); - PROCESS(bSrc, BCOMP, 0, GLhalfARB, clamp_half_to_uint); - PROCESS(aSrc, ACOMP, 1, GLhalfARB, clamp_half_to_uint); - break; - case GL_UNSIGNED_BYTE_3_3_2: - { - const GLubyte *ubsrc = (const GLubyte *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLubyte p = ubsrc[i]; - rgba[i][rDst] = ((p >> 5) ); - rgba[i][gDst] = ((p >> 2) & 0x7); - rgba[i][bDst] = ((p ) & 0x3); - rgba[i][aDst] = 1; - } - } - break; - case GL_UNSIGNED_BYTE_2_3_3_REV: - { - const GLubyte *ubsrc = (const GLubyte *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLubyte p = ubsrc[i]; - rgba[i][rDst] = ((p ) & 0x7); - rgba[i][gDst] = ((p >> 3) & 0x7); - rgba[i][bDst] = ((p >> 6) ); - rgba[i][aDst] = 1; - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 11) ); - rgba[i][gDst] = ((p >> 5) & 0x3f); - rgba[i][bDst] = ((p ) & 0x1f); - rgba[i][aDst] = 1; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 11) ); - rgba[i][gDst] = ((p >> 5) & 0x3f); - rgba[i][bDst] = ((p ) & 0x1f); - rgba[i][aDst] = 1; - } - } - break; - case GL_UNSIGNED_SHORT_5_6_5_REV: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0x1f); - rgba[i][gDst] = ((p >> 5) & 0x3f); - rgba[i][bDst] = ((p >> 11) ); - rgba[i][aDst] = 1; - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0x1f); - rgba[i][gDst] = ((p >> 5) & 0x3f); - rgba[i][bDst] = ((p >> 11) ); - rgba[i][aDst] = 1; - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 12) ); - rgba[i][gDst] = ((p >> 8) & 0xf); - rgba[i][bDst] = ((p >> 4) & 0xf); - rgba[i][aDst] = ((p ) & 0xf); - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 12) ); - rgba[i][gDst] = ((p >> 8) & 0xf); - rgba[i][bDst] = ((p >> 4) & 0xf); - rgba[i][aDst] = ((p ) & 0xf); - } - } - break; - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0xf); - rgba[i][gDst] = ((p >> 4) & 0xf); - rgba[i][bDst] = ((p >> 8) & 0xf); - rgba[i][aDst] = ((p >> 12) ); - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0xf); - rgba[i][gDst] = ((p >> 4) & 0xf); - rgba[i][bDst] = ((p >> 8) & 0xf); - rgba[i][aDst] = ((p >> 12) ); - } - } - break; - case GL_UNSIGNED_SHORT_5_5_5_1: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p >> 11) ); - rgba[i][gDst] = ((p >> 6) & 0x1f); - rgba[i][bDst] = ((p >> 1) & 0x1f); - rgba[i][aDst] = ((p ) & 0x1 ); - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p >> 11) ); - rgba[i][gDst] = ((p >> 6) & 0x1f); - rgba[i][bDst] = ((p >> 1) & 0x1f); - rgba[i][aDst] = ((p ) & 0x1 ); - } - } - break; - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - if (swapBytes) { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - SWAP2BYTE(p); - rgba[i][rDst] = ((p ) & 0x1f); - rgba[i][gDst] = ((p >> 5) & 0x1f); - rgba[i][bDst] = ((p >> 10) & 0x1f); - rgba[i][aDst] = ((p >> 15) ); - } - } - else { - const GLushort *ussrc = (const GLushort *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLushort p = ussrc[i]; - rgba[i][rDst] = ((p ) & 0x1f); - rgba[i][gDst] = ((p >> 5) & 0x1f); - rgba[i][bDst] = ((p >> 10) & 0x1f); - rgba[i][aDst] = ((p >> 15) ); - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p ) & 0xff); - rgba[i][gDst] = ((p >> 8) & 0xff); - rgba[i][bDst] = ((p >> 16) & 0xff); - rgba[i][aDst] = ((p >> 24) ); - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p >> 24) ); - rgba[i][gDst] = ((p >> 16) & 0xff); - rgba[i][bDst] = ((p >> 8) & 0xff); - rgba[i][aDst] = ((p ) & 0xff); - } - } - break; - case GL_UNSIGNED_INT_8_8_8_8_REV: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p >> 24) ); - rgba[i][gDst] = ((p >> 16) & 0xff); - rgba[i][bDst] = ((p >> 8) & 0xff); - rgba[i][aDst] = ((p ) & 0xff); - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p ) & 0xff); - rgba[i][gDst] = ((p >> 8) & 0xff); - rgba[i][bDst] = ((p >> 16) & 0xff); - rgba[i][aDst] = ((p >> 24) ); - } - } - break; - case GL_UNSIGNED_INT_10_10_10_2: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - SWAP4BYTE(p); - rgba[i][rDst] = ((p >> 22) ); - rgba[i][gDst] = ((p >> 12) & 0x3ff); - rgba[i][bDst] = ((p >> 2) & 0x3ff); - rgba[i][aDst] = ((p ) & 0x3 ); - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p >> 22) ); - rgba[i][gDst] = ((p >> 12) & 0x3ff); - rgba[i][bDst] = ((p >> 2) & 0x3ff); - rgba[i][aDst] = ((p ) & 0x3 ); - } - } - break; - case GL_UNSIGNED_INT_2_10_10_10_REV: - if (swapBytes) { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - SWAP4BYTE(p); - rgba[i][rDst] = ((p ) & 0x3ff); - rgba[i][gDst] = ((p >> 10) & 0x3ff); - rgba[i][bDst] = ((p >> 20) & 0x3ff); - rgba[i][aDst] = ((p >> 30) ); - } - } - else { - const GLuint *uisrc = (const GLuint *) src; - GLuint i; - for (i = 0; i < n; i ++) { - GLuint p = uisrc[i]; - rgba[i][rDst] = ((p ) & 0x3ff); - rgba[i][gDst] = ((p >> 10) & 0x3ff); - rgba[i][bDst] = ((p >> 20) & 0x3ff); - rgba[i][aDst] = ((p >> 30) ); - } - } - break; - default: - _mesa_problem(NULL, "bad srcType in extract uint data"); - break; - } -#undef PROCESS -} - - - -/* - * Unpack a row of color image data from a client buffer according to - * the pixel unpacking parameters. - * Return GLchan values in the specified dest image format. - * This is used by glDrawPixels and glTexImage?D(). - * \param ctx - the context - * n - number of pixels in the span - * dstFormat - format of destination color array - * dest - the destination color array - * srcFormat - source image format - * srcType - source image data type - * source - source image pointer - * srcPacking - pixel unpacking parameters - * transferOps - bitmask of IMAGE_*_BIT values of operations to apply - * - * XXX perhaps expand this to process whole images someday. - */ -void -_mesa_unpack_color_span_chan( struct gl_context *ctx, - GLuint n, GLenum dstFormat, GLchan dest[], - GLenum srcFormat, GLenum srcType, - const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps ) -{ - ASSERT(dstFormat == GL_ALPHA || - dstFormat == GL_LUMINANCE || - dstFormat == GL_LUMINANCE_ALPHA || - dstFormat == GL_INTENSITY || - dstFormat == GL_RED || - dstFormat == GL_RG || - dstFormat == GL_RGB || - dstFormat == GL_RGBA || - dstFormat == GL_COLOR_INDEX); - - ASSERT(srcFormat == GL_RED || - srcFormat == GL_GREEN || - srcFormat == GL_BLUE || - srcFormat == GL_ALPHA || - srcFormat == GL_LUMINANCE || - srcFormat == GL_LUMINANCE_ALPHA || - srcFormat == GL_INTENSITY || - srcFormat == GL_RG || - srcFormat == GL_RGB || - srcFormat == GL_BGR || - srcFormat == GL_RGBA || - srcFormat == GL_BGRA || - srcFormat == GL_ABGR_EXT || - srcFormat == GL_COLOR_INDEX); - - ASSERT(srcType == GL_BITMAP || - srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT || - srcType == GL_UNSIGNED_BYTE_3_3_2 || - srcType == GL_UNSIGNED_BYTE_2_3_3_REV || - srcType == GL_UNSIGNED_SHORT_5_6_5 || - srcType == GL_UNSIGNED_SHORT_5_6_5_REV || - srcType == GL_UNSIGNED_SHORT_4_4_4_4 || - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || - srcType == GL_UNSIGNED_SHORT_5_5_5_1 || - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV || - srcType == GL_UNSIGNED_INT_10_10_10_2 || - srcType == GL_UNSIGNED_INT_2_10_10_10_REV); - - /* Try simple cases first */ - if (transferOps == 0) { - if (srcType == CHAN_TYPE) { - if (dstFormat == GL_RGBA) { - if (srcFormat == GL_RGBA) { - memcpy( dest, source, n * 4 * sizeof(GLchan) ); - return; - } - else if (srcFormat == GL_RGB) { - GLuint i; - const GLchan *src = (const GLchan *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - dst[3] = CHAN_MAX; - src += 3; - dst += 4; - } - return; - } - } - else if (dstFormat == GL_RGB) { - if (srcFormat == GL_RGB) { - memcpy( dest, source, n * 3 * sizeof(GLchan) ); - return; - } - else if (srcFormat == GL_RGBA) { - GLuint i; - const GLchan *src = (const GLchan *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = src[0]; - dst[1] = src[1]; - dst[2] = src[2]; - src += 4; - dst += 3; - } - return; - } - } - else if (dstFormat == srcFormat) { - GLint comps = _mesa_components_in_format(srcFormat); - assert(comps > 0); - memcpy( dest, source, n * comps * sizeof(GLchan) ); - return; - } - } - /* - * Common situation, loading 8bit RGBA/RGB source images - * into 16/32 bit destination. (OSMesa16/32) - */ - else if (srcType == GL_UNSIGNED_BYTE) { - if (dstFormat == GL_RGBA) { - if (srcFormat == GL_RGB) { - GLuint i; - const GLubyte *src = (const GLubyte *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = UBYTE_TO_CHAN(src[0]); - dst[1] = UBYTE_TO_CHAN(src[1]); - dst[2] = UBYTE_TO_CHAN(src[2]); - dst[3] = CHAN_MAX; - src += 3; - dst += 4; - } - return; - } - else if (srcFormat == GL_RGBA) { - GLuint i; - const GLubyte *src = (const GLubyte *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = UBYTE_TO_CHAN(src[0]); - dst[1] = UBYTE_TO_CHAN(src[1]); - dst[2] = UBYTE_TO_CHAN(src[2]); - dst[3] = UBYTE_TO_CHAN(src[3]); - src += 4; - dst += 4; - } - return; - } - } - else if (dstFormat == GL_RGB) { - if (srcFormat == GL_RGB) { - GLuint i; - const GLubyte *src = (const GLubyte *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = UBYTE_TO_CHAN(src[0]); - dst[1] = UBYTE_TO_CHAN(src[1]); - dst[2] = UBYTE_TO_CHAN(src[2]); - src += 3; - dst += 3; - } - return; - } - else if (srcFormat == GL_RGBA) { - GLuint i; - const GLubyte *src = (const GLubyte *) source; - GLchan *dst = dest; - for (i = 0; i < n; i++) { - dst[0] = UBYTE_TO_CHAN(src[0]); - dst[1] = UBYTE_TO_CHAN(src[1]); - dst[2] = UBYTE_TO_CHAN(src[2]); - src += 4; - dst += 3; - } - return; - } - } - } - } - - - /* general solution begins here */ - { - GLint dstComponents; - GLint rDst, gDst, bDst, aDst, lDst, iDst; - GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - dstComponents = _mesa_components_in_format( dstFormat ); - /* source & dest image formats should have been error checked by now */ - assert(dstComponents > 0); - - /* - * Extract image data and convert to RGBA floats - */ - if (srcFormat == GL_COLOR_INDEX) { - GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); - - if (!indexes) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - extract_uint_indexes(n, indexes, srcFormat, srcType, source, - srcPacking); - - if (dstFormat == GL_COLOR_INDEX) { - GLuint i; - _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); - /* convert to GLchan and return */ - for (i = 0; i < n; i++) { - dest[i] = (GLchan) (indexes[i] & 0xff); - } - free(indexes); - free(rgba); - return; - } - else { - /* Convert indexes to RGBA */ - if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { - _mesa_shift_and_offset_ci(ctx, n, indexes); - } - _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); - } - - /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting - * with color indexes. - */ - transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); - - free(indexes); - } - else { - /* non-color index data */ - extract_float_rgba(n, rgba, srcFormat, srcType, source, - srcPacking->SwapBytes); - } - - /* Need to clamp if returning GLubytes or GLushorts */ -#if CHAN_TYPE != GL_FLOAT - transferOps |= IMAGE_CLAMP_BIT; -#endif - - if (transferOps) { - _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); - } - - get_component_indexes(dstFormat, - &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); - - /* Now return the GLchan data in the requested dstFormat */ - if (rDst >= 0) { - GLchan *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - CLAMPED_FLOAT_TO_CHAN(dst[rDst], rgba[i][RCOMP]); - dst += dstComponents; - } - } - - if (gDst >= 0) { - GLchan *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - CLAMPED_FLOAT_TO_CHAN(dst[gDst], rgba[i][GCOMP]); - dst += dstComponents; - } - } - - if (bDst >= 0) { - GLchan *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - CLAMPED_FLOAT_TO_CHAN(dst[bDst], rgba[i][BCOMP]); - dst += dstComponents; - } - } - - if (aDst >= 0) { - GLchan *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - CLAMPED_FLOAT_TO_CHAN(dst[aDst], rgba[i][ACOMP]); - dst += dstComponents; - } - } - - if (iDst >= 0) { - GLchan *dst = dest; - GLuint i; - assert(iDst == 0); - assert(dstComponents == 1); - for (i = 0; i < n; i++) { - /* Intensity comes from red channel */ - CLAMPED_FLOAT_TO_CHAN(dst[i], rgba[i][RCOMP]); - } - } - - if (lDst >= 0) { - GLchan *dst = dest; - GLuint i; - assert(lDst == 0); - for (i = 0; i < n; i++) { - /* Luminance comes from red channel */ - CLAMPED_FLOAT_TO_CHAN(dst[0], rgba[i][RCOMP]); - dst += dstComponents; - } - } - - free(rgba); - } -} - - -/** - * Same as _mesa_unpack_color_span_chan(), but return GLfloat data - * instead of GLchan. - */ -void -_mesa_unpack_color_span_float( struct gl_context *ctx, - GLuint n, GLenum dstFormat, GLfloat dest[], - GLenum srcFormat, GLenum srcType, - const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps ) -{ - ASSERT(dstFormat == GL_ALPHA || - dstFormat == GL_LUMINANCE || - dstFormat == GL_LUMINANCE_ALPHA || - dstFormat == GL_INTENSITY || - dstFormat == GL_RED || - dstFormat == GL_RG || - dstFormat == GL_RGB || - dstFormat == GL_RGBA || - dstFormat == GL_COLOR_INDEX); - - ASSERT(srcFormat == GL_RED || - srcFormat == GL_GREEN || - srcFormat == GL_BLUE || - srcFormat == GL_ALPHA || - srcFormat == GL_LUMINANCE || - srcFormat == GL_LUMINANCE_ALPHA || - srcFormat == GL_INTENSITY || - srcFormat == GL_RG || - srcFormat == GL_RGB || - srcFormat == GL_BGR || - srcFormat == GL_RGBA || - srcFormat == GL_BGRA || - srcFormat == GL_ABGR_EXT || - srcFormat == GL_RED_INTEGER_EXT || - srcFormat == GL_GREEN_INTEGER_EXT || - srcFormat == GL_BLUE_INTEGER_EXT || - srcFormat == GL_ALPHA_INTEGER_EXT || - srcFormat == GL_RGB_INTEGER_EXT || - srcFormat == GL_RGBA_INTEGER_EXT || - srcFormat == GL_BGR_INTEGER_EXT || - srcFormat == GL_BGRA_INTEGER_EXT || - srcFormat == GL_LUMINANCE_INTEGER_EXT || - srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT || - srcFormat == GL_COLOR_INDEX); - - ASSERT(srcType == GL_BITMAP || - srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT || - srcType == GL_UNSIGNED_BYTE_3_3_2 || - srcType == GL_UNSIGNED_BYTE_2_3_3_REV || - srcType == GL_UNSIGNED_SHORT_5_6_5 || - srcType == GL_UNSIGNED_SHORT_5_6_5_REV || - srcType == GL_UNSIGNED_SHORT_4_4_4_4 || - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || - srcType == GL_UNSIGNED_SHORT_5_5_5_1 || - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV || - srcType == GL_UNSIGNED_INT_10_10_10_2 || - srcType == GL_UNSIGNED_INT_2_10_10_10_REV); - - /* general solution, no special cases, yet */ - { - GLint dstComponents; - GLint rDst, gDst, bDst, aDst, lDst, iDst; - GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - dstComponents = _mesa_components_in_format( dstFormat ); - /* source & dest image formats should have been error checked by now */ - assert(dstComponents > 0); - - /* - * Extract image data and convert to RGBA floats - */ - if (srcFormat == GL_COLOR_INDEX) { - GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); - - if (!indexes) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - free(rgba); - return; - } - - extract_uint_indexes(n, indexes, srcFormat, srcType, source, - srcPacking); - - if (dstFormat == GL_COLOR_INDEX) { - GLuint i; - _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); - /* convert to GLchan and return */ - for (i = 0; i < n; i++) { - dest[i] = (GLchan) (indexes[i] & 0xff); - } - free(indexes); - free(rgba); - return; - } - else { - /* Convert indexes to RGBA */ - if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { - _mesa_shift_and_offset_ci(ctx, n, indexes); - } - _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); - } - - /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting - * with color indexes. - */ - transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); - - free(indexes); - } - else { - /* non-color index data */ - extract_float_rgba(n, rgba, srcFormat, srcType, source, - srcPacking->SwapBytes); - } - - if (transferOps) { - _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); - } - - get_component_indexes(dstFormat, - &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); - - /* Now pack results in the requested dstFormat */ - if (rDst >= 0) { - GLfloat *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[rDst] = rgba[i][RCOMP]; - dst += dstComponents; - } - } - - if (gDst >= 0) { - GLfloat *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[gDst] = rgba[i][GCOMP]; - dst += dstComponents; - } - } - - if (bDst >= 0) { - GLfloat *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[bDst] = rgba[i][BCOMP]; - dst += dstComponents; - } - } - - if (aDst >= 0) { - GLfloat *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[aDst] = rgba[i][ACOMP]; - dst += dstComponents; - } - } - - if (iDst >= 0) { - GLfloat *dst = dest; - GLuint i; - assert(iDst == 0); - assert(dstComponents == 1); - for (i = 0; i < n; i++) { - /* Intensity comes from red channel */ - dst[i] = rgba[i][RCOMP]; - } - } - - if (lDst >= 0) { - GLfloat *dst = dest; - GLuint i; - assert(lDst == 0); - for (i = 0; i < n; i++) { - /* Luminance comes from red channel */ - dst[0] = rgba[i][RCOMP]; - dst += dstComponents; - } - } - - free(rgba); - } -} - - -/** - * Same as _mesa_unpack_color_span_chan(), but return GLuint data - * instead of GLchan. - * No pixel transfer ops are applied. - */ -void -_mesa_unpack_color_span_uint(struct gl_context *ctx, - GLuint n, GLenum dstFormat, GLuint *dest, - GLenum srcFormat, GLenum srcType, - const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking) -{ - GLuint (*rgba)[4] = (GLuint (*)[4]) malloc(n * 4 * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - ASSERT(dstFormat == GL_ALPHA || - dstFormat == GL_LUMINANCE || - dstFormat == GL_LUMINANCE_ALPHA || - dstFormat == GL_INTENSITY || - dstFormat == GL_RED || - dstFormat == GL_RG || - dstFormat == GL_RGB || - dstFormat == GL_RGBA); - - ASSERT(srcFormat == GL_RED || - srcFormat == GL_GREEN || - srcFormat == GL_BLUE || - srcFormat == GL_ALPHA || - srcFormat == GL_LUMINANCE || - srcFormat == GL_LUMINANCE_ALPHA || - srcFormat == GL_INTENSITY || - srcFormat == GL_RG || - srcFormat == GL_RGB || - srcFormat == GL_BGR || - srcFormat == GL_RGBA || - srcFormat == GL_BGRA || - srcFormat == GL_ABGR_EXT || - srcFormat == GL_RED_INTEGER_EXT || - srcFormat == GL_GREEN_INTEGER_EXT || - srcFormat == GL_BLUE_INTEGER_EXT || - srcFormat == GL_ALPHA_INTEGER_EXT || - srcFormat == GL_RGB_INTEGER_EXT || - srcFormat == GL_RGBA_INTEGER_EXT || - srcFormat == GL_BGR_INTEGER_EXT || - srcFormat == GL_BGRA_INTEGER_EXT || - srcFormat == GL_LUMINANCE_INTEGER_EXT || - srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); - - ASSERT(srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT || - srcType == GL_UNSIGNED_BYTE_3_3_2 || - srcType == GL_UNSIGNED_BYTE_2_3_3_REV || - srcType == GL_UNSIGNED_SHORT_5_6_5 || - srcType == GL_UNSIGNED_SHORT_5_6_5_REV || - srcType == GL_UNSIGNED_SHORT_4_4_4_4 || - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || - srcType == GL_UNSIGNED_SHORT_5_5_5_1 || - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV || - srcType == GL_UNSIGNED_INT_10_10_10_2 || - srcType == GL_UNSIGNED_INT_2_10_10_10_REV); - - - /* Extract image data as uint[4] pixels */ - extract_uint_rgba(n, rgba, srcFormat, srcType, source, - srcPacking->SwapBytes); - - if (dstFormat == GL_RGBA) { - /* simple case */ - memcpy(dest, rgba, 4 * sizeof(GLuint) * n); - } - else { - /* general case */ - GLint rDst, gDst, bDst, aDst, lDst, iDst; - GLint dstComponents = _mesa_components_in_format( dstFormat ); - - assert(dstComponents > 0); - - get_component_indexes(dstFormat, - &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); - - /* Now pack values in the requested dest format */ - if (rDst >= 0) { - GLuint *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[rDst] = rgba[i][RCOMP]; - dst += dstComponents; - } - } - - if (gDst >= 0) { - GLuint *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[gDst] = rgba[i][GCOMP]; - dst += dstComponents; - } - } - - if (bDst >= 0) { - GLuint *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[bDst] = rgba[i][BCOMP]; - dst += dstComponents; - } - } - - if (aDst >= 0) { - GLuint *dst = dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[aDst] = rgba[i][ACOMP]; - dst += dstComponents; - } - } - - if (iDst >= 0) { - GLuint *dst = dest; - GLuint i; - assert(iDst == 0); - assert(dstComponents == 1); - for (i = 0; i < n; i++) { - /* Intensity comes from red channel */ - dst[i] = rgba[i][RCOMP]; - } - } - - if (lDst >= 0) { - GLuint *dst = dest; - GLuint i; - assert(lDst == 0); - for (i = 0; i < n; i++) { - /* Luminance comes from red channel */ - dst[0] = rgba[i][RCOMP]; - dst += dstComponents; - } - } - } - - free(rgba); -} - - - -/** - * Similar to _mesa_unpack_color_span_float(), but for dudv data instead of rgba, - * directly return GLbyte data, no transfer ops apply. - */ -void -_mesa_unpack_dudv_span_byte( struct gl_context *ctx, - GLuint n, GLenum dstFormat, GLbyte dest[], - GLenum srcFormat, GLenum srcType, - const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps ) -{ - ASSERT(dstFormat == GL_DUDV_ATI); - ASSERT(srcFormat == GL_DUDV_ATI || - srcFormat == GL_DU8DV8_ATI); - - ASSERT(srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT); - - /* general solution */ - { - GLint dstComponents; - GLbyte *dst = dest; - GLuint i; - GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); - - if (!rgba) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - dstComponents = _mesa_components_in_format( dstFormat ); - /* source & dest image formats should have been error checked by now */ - assert(dstComponents > 0); - - /* - * Extract image data and convert to RGBA floats - */ - extract_float_rgba(n, rgba, srcFormat, srcType, source, - srcPacking->SwapBytes); - - - /* Now determine which color channels we need to produce. - * And determine the dest index (offset) within each color tuple. - */ - - /* Now pack results in the requested dstFormat */ - for (i = 0; i < n; i++) { - /* not sure - need clamp[-1,1] here? */ - dst[0] = FLOAT_TO_BYTE(rgba[i][RCOMP]); - dst[1] = FLOAT_TO_BYTE(rgba[i][GCOMP]); - dst += dstComponents; - } - - free(rgba); - } -} - -/* - * Unpack a row of color index data from a client buffer according to - * the pixel unpacking parameters. - * This is (or will be) used by glDrawPixels, glTexImage[123]D, etc. - * - * Args: ctx - the context - * n - number of pixels - * dstType - destination data type - * dest - destination array - * srcType - source pixel type - * source - source data pointer - * srcPacking - pixel unpacking parameters - * transferOps - the pixel transfer operations to apply - */ -void -_mesa_unpack_index_span( struct gl_context *ctx, GLuint n, - GLenum dstType, GLvoid *dest, - GLenum srcType, const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps ) -{ - ASSERT(srcType == GL_BITMAP || - srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT); - - ASSERT(dstType == GL_UNSIGNED_BYTE || - dstType == GL_UNSIGNED_SHORT || - dstType == GL_UNSIGNED_INT); - - - transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT); - - /* - * Try simple cases first - */ - if (transferOps == 0 && srcType == GL_UNSIGNED_BYTE - && dstType == GL_UNSIGNED_BYTE) { - memcpy(dest, source, n * sizeof(GLubyte)); - } - else if (transferOps == 0 && srcType == GL_UNSIGNED_INT - && dstType == GL_UNSIGNED_INT && !srcPacking->SwapBytes) { - memcpy(dest, source, n * sizeof(GLuint)); - } - else { - /* - * general solution - */ - GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); - - if (!indexes) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source, - srcPacking); - - if (transferOps) - _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); - - /* convert to dest type */ - switch (dstType) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLubyte) (indexes[i] & 0xff); - } - } - break; - case GL_UNSIGNED_SHORT: - { - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLushort) (indexes[i] & 0xffff); - } - } - break; - case GL_UNSIGNED_INT: - memcpy(dest, indexes, n * sizeof(GLuint)); - break; - default: - _mesa_problem(ctx, "bad dstType in _mesa_unpack_index_span"); - } - - free(indexes); - } -} - - -void -_mesa_pack_index_span( struct gl_context *ctx, GLuint n, - GLenum dstType, GLvoid *dest, const GLuint *source, - const struct gl_pixelstore_attrib *dstPacking, - GLbitfield transferOps ) -{ - GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); - - if (!indexes) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); - return; - } - - transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT); - - if (transferOps & (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT)) { - /* make a copy of input */ - memcpy(indexes, source, n * sizeof(GLuint)); - _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); - source = indexes; - } - - switch (dstType) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - *dst++ = (GLubyte) source[i]; - } - } - break; - case GL_BYTE: - { - GLbyte *dst = (GLbyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLbyte) source[i]; - } - } - break; - case GL_UNSIGNED_SHORT: - { - GLushort *dst = (GLushort *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLushort) source[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_SHORT: - { - GLshort *dst = (GLshort *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLshort) source[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_UNSIGNED_INT: - { - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLuint) source[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_INT: - { - GLint *dst = (GLint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLint) source[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_FLOAT: - { - GLfloat *dst = (GLfloat *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLfloat) source[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_HALF_FLOAT_ARB: - { - GLhalfARB *dst = (GLhalfARB *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = _mesa_float_to_half((GLfloat) source[i]); - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - default: - _mesa_problem(ctx, "bad type in _mesa_pack_index_span"); - } - - free(indexes); -} - - -/* - * Unpack a row of stencil data from a client buffer according to - * the pixel unpacking parameters. - * This is (or will be) used by glDrawPixels - * - * Args: ctx - the context - * n - number of pixels - * dstType - destination data type - * dest - destination array - * srcType - source pixel type - * source - source data pointer - * srcPacking - pixel unpacking parameters - * transferOps - apply offset/bias/lookup ops? - */ -void -_mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n, - GLenum dstType, GLvoid *dest, - GLenum srcType, const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking, - GLbitfield transferOps ) -{ - ASSERT(srcType == GL_BITMAP || - srcType == GL_UNSIGNED_BYTE || - srcType == GL_BYTE || - srcType == GL_UNSIGNED_SHORT || - srcType == GL_SHORT || - srcType == GL_UNSIGNED_INT || - srcType == GL_INT || - srcType == GL_UNSIGNED_INT_24_8_EXT || - srcType == GL_HALF_FLOAT_ARB || - srcType == GL_FLOAT); - - ASSERT(dstType == GL_UNSIGNED_BYTE || - dstType == GL_UNSIGNED_SHORT || - dstType == GL_UNSIGNED_INT); - - /* only shift and offset apply to stencil */ - transferOps &= IMAGE_SHIFT_OFFSET_BIT; - - /* - * Try simple cases first - */ - if (transferOps == 0 && - !ctx->Pixel.MapStencilFlag && - srcType == GL_UNSIGNED_BYTE && - dstType == GL_UNSIGNED_BYTE) { - memcpy(dest, source, n * sizeof(GLubyte)); - } - else if (transferOps == 0 && - !ctx->Pixel.MapStencilFlag && - srcType == GL_UNSIGNED_INT && - dstType == GL_UNSIGNED_INT && - !srcPacking->SwapBytes) { - memcpy(dest, source, n * sizeof(GLuint)); - } - else { - /* - * general solution - */ - GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); - - if (!indexes) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil unpacking"); - return; - } - - extract_uint_indexes(n, indexes, GL_STENCIL_INDEX, srcType, source, - srcPacking); - - if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { - /* shift and offset indexes */ - _mesa_shift_and_offset_ci(ctx, n, indexes); - } - - if (ctx->Pixel.MapStencilFlag) { - /* Apply stencil lookup table */ - const GLuint mask = ctx->PixelMaps.StoS.Size - 1; - GLuint i; - for (i = 0; i < n; i++) { - indexes[i] = (GLuint)ctx->PixelMaps.StoS.Map[ indexes[i] & mask ]; - } - } - - /* convert to dest type */ - switch (dstType) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLubyte) (indexes[i] & 0xff); - } - } - break; - case GL_UNSIGNED_SHORT: - { - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = (GLushort) (indexes[i] & 0xffff); - } - } - break; - case GL_UNSIGNED_INT: - memcpy(dest, indexes, n * sizeof(GLuint)); - break; - default: - _mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span"); - } - - free(indexes); - } -} - - -void -_mesa_pack_stencil_span( struct gl_context *ctx, GLuint n, - GLenum dstType, GLvoid *dest, const GLstencil *source, - const struct gl_pixelstore_attrib *dstPacking ) -{ - GLstencil *stencil = (GLstencil *) malloc(n * sizeof(GLstencil)); - - if (!stencil) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil packing"); - return; - } - - if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset || - ctx->Pixel.MapStencilFlag) { - /* make a copy of input */ - memcpy(stencil, source, n * sizeof(GLstencil)); - _mesa_apply_stencil_transfer_ops(ctx, n, stencil); - source = stencil; - } - - switch (dstType) { - case GL_UNSIGNED_BYTE: - if (sizeof(GLstencil) == 1) { - memcpy( dest, source, n ); - } - else { - GLubyte *dst = (GLubyte *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_SHORT: - { - GLshort *dst = (GLshort *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_UNSIGNED_INT: - { - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_INT: - { - GLint *dst = (GLint *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_FLOAT: - { - GLfloat *dst = (GLfloat *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_HALF_FLOAT_ARB: - { - GLhalfARB *dst = (GLhalfARB *) dest; - GLuint i; - for (i=0;iSwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_BITMAP: - if (dstPacking->LsbFirst) { - GLubyte *dst = (GLubyte *) dest; - GLint shift = 0; - GLuint i; - for (i = 0; i < n; i++) { - if (shift == 0) - *dst = 0; - *dst |= ((source[i] != 0) << shift); - shift++; - if (shift == 8) { - shift = 0; - dst++; - } - } - } - else { - GLubyte *dst = (GLubyte *) dest; - GLint shift = 7; - GLuint i; - for (i = 0; i < n; i++) { - if (shift == 7) - *dst = 0; - *dst |= ((source[i] != 0) << shift); - shift--; - if (shift < 0) { - shift = 7; - dst++; - } - } - } - break; - default: - _mesa_problem(ctx, "bad type in _mesa_pack_index_span"); - } - - free(stencil); -} - -#define DEPTH_VALUES(GLTYPE, GLTYPE2FLOAT) \ - do { \ - GLuint i; \ - const GLTYPE *src = (const GLTYPE *)source; \ - for (i = 0; i < n; i++) { \ - GLTYPE value = src[i]; \ - if (srcPacking->SwapBytes) { \ - if (sizeof(GLTYPE) == 2) { \ - SWAP2BYTE(value); \ - } else if (sizeof(GLTYPE) == 4) { \ - SWAP4BYTE(value); \ - } \ - } \ - depthValues[i] = GLTYPE2FLOAT(value); \ - } \ - } while (0) - - -/** - * Unpack a row of depth/z values from memory, returning GLushort, GLuint - * or GLfloat values. - * The glPixelTransfer (scale/bias) params will be applied. - * - * \param dstType one of GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, GL_FLOAT - * \param depthMax max value for returned GLushort or GLuint values - * (ignored for GLfloat). - */ -void -_mesa_unpack_depth_span( struct gl_context *ctx, GLuint n, - GLenum dstType, GLvoid *dest, GLuint depthMax, - GLenum srcType, const GLvoid *source, - const struct gl_pixelstore_attrib *srcPacking ) -{ - GLfloat *depthTemp, *depthValues; - GLboolean needClamp = GL_FALSE; - - /* Look for special cases first. - * Not only are these faster, they're less prone to numeric conversion - * problems. Otherwise, converting from an int type to a float then - * back to an int type can introduce errors that will show up as - * artifacts in things like depth peeling which uses glCopyTexImage. - */ - if (ctx->Pixel.DepthScale == 1.0 && ctx->Pixel.DepthBias == 0.0) { - if (srcType == GL_UNSIGNED_INT && dstType == GL_UNSIGNED_SHORT) { - const GLuint *src = (const GLuint *) source; - GLushort *dst = (GLushort *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = src[i] >> 16; - } - return; - } - if (srcType == GL_UNSIGNED_SHORT - && dstType == GL_UNSIGNED_INT - && depthMax == 0xffffffff) { - const GLushort *src = (const GLushort *) source; - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = src[i] | (src[i] << 16); - } - return; - } - if (srcType == GL_UNSIGNED_INT_24_8 - && dstType == GL_UNSIGNED_INT - && depthMax == 0xffffff) { - const GLuint *src = (const GLuint *) source; - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = src[i] >> 8; - } - return; - } - /* XXX may want to add additional cases here someday */ - } - - /* general case path follows */ - - depthTemp = (GLfloat *) malloc(n * sizeof(GLfloat)); - if (!depthTemp) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); - return; - } - - if (dstType == GL_FLOAT) { - depthValues = (GLfloat *) dest; - } - else { - depthValues = depthTemp; - } - - /* Convert incoming values to GLfloat. Some conversions will require - * clamping, below. - */ - switch (srcType) { - case GL_BYTE: - DEPTH_VALUES(GLbyte, BYTE_TO_FLOAT); - needClamp = GL_TRUE; - break; - case GL_UNSIGNED_BYTE: - DEPTH_VALUES(GLubyte, UBYTE_TO_FLOAT); - break; - case GL_SHORT: - DEPTH_VALUES(GLshort, SHORT_TO_FLOAT); - needClamp = GL_TRUE; - break; - case GL_UNSIGNED_SHORT: - DEPTH_VALUES(GLushort, USHORT_TO_FLOAT); - break; - case GL_INT: - DEPTH_VALUES(GLint, INT_TO_FLOAT); - needClamp = GL_TRUE; - break; - case GL_UNSIGNED_INT: - DEPTH_VALUES(GLuint, UINT_TO_FLOAT); - break; - case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */ - if (dstType == GL_UNSIGNED_INT_24_8_EXT && - depthMax == 0xffffff && - ctx->Pixel.DepthScale == 1.0 && - ctx->Pixel.DepthBias == 0.0) { - const GLuint *src = (const GLuint *) source; - GLuint *zValues = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - GLuint value = src[i]; - if (srcPacking->SwapBytes) { - SWAP4BYTE(value); - } - zValues[i] = value & 0xffffff00; - } - return; - } - else { - const GLuint *src = (const GLuint *) source; - const GLfloat scale = 1.0f / 0xffffff; - GLuint i; - for (i = 0; i < n; i++) { - GLuint value = src[i]; - if (srcPacking->SwapBytes) { - SWAP4BYTE(value); - } - depthValues[i] = (value >> 8) * scale; - } - } - break; - case GL_FLOAT: - DEPTH_VALUES(GLfloat, 1*); - needClamp = GL_TRUE; - break; - case GL_HALF_FLOAT_ARB: - { - GLuint i; - const GLhalfARB *src = (const GLhalfARB *) source; - for (i = 0; i < n; i++) { - GLhalfARB value = src[i]; - if (srcPacking->SwapBytes) { - SWAP2BYTE(value); - } - depthValues[i] = _mesa_half_to_float(value); - } - needClamp = GL_TRUE; - } - break; - default: - _mesa_problem(NULL, "bad type in _mesa_unpack_depth_span()"); - free(depthTemp); - return; - } - - /* apply depth scale and bias */ - { - const GLfloat scale = ctx->Pixel.DepthScale; - const GLfloat bias = ctx->Pixel.DepthBias; - if (scale != 1.0 || bias != 0.0) { - GLuint i; - for (i = 0; i < n; i++) { - depthValues[i] = depthValues[i] * scale + bias; - } - needClamp = GL_TRUE; - } - } - - /* clamp to [0, 1] */ - if (needClamp) { - GLuint i; - for (i = 0; i < n; i++) { - depthValues[i] = (GLfloat)CLAMP(depthValues[i], 0.0, 1.0); - } - } - - /* - * Convert values to dstType - */ - if (dstType == GL_UNSIGNED_INT) { - GLuint *zValues = (GLuint *) dest; - GLuint i; - if (depthMax <= 0xffffff) { - /* no overflow worries */ - for (i = 0; i < n; i++) { - zValues[i] = (GLuint) (depthValues[i] * (GLfloat) depthMax); - } - } - else { - /* need to use double precision to prevent overflow problems */ - for (i = 0; i < n; i++) { - GLdouble z = depthValues[i] * (GLfloat) depthMax; - if (z >= (GLdouble) 0xffffffff) - zValues[i] = 0xffffffff; - else - zValues[i] = (GLuint) z; - } - } - } - else if (dstType == GL_UNSIGNED_SHORT) { - GLushort *zValues = (GLushort *) dest; - GLuint i; - ASSERT(depthMax <= 0xffff); - for (i = 0; i < n; i++) { - zValues[i] = (GLushort) (depthValues[i] * (GLfloat) depthMax); - } - } - else { - ASSERT(dstType == GL_FLOAT); - /*ASSERT(depthMax == 1.0F);*/ - } - - free(depthTemp); -} - - -/* - * Pack an array of depth values. The values are floats in [0,1]. - */ -void -_mesa_pack_depth_span( struct gl_context *ctx, GLuint n, GLvoid *dest, - GLenum dstType, const GLfloat *depthSpan, - const struct gl_pixelstore_attrib *dstPacking ) -{ - GLfloat *depthCopy = (GLfloat *) malloc(n * sizeof(GLfloat)); - if (!depthCopy) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); - return; - } - - if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { - memcpy(depthCopy, depthSpan, n * sizeof(GLfloat)); - _mesa_scale_and_bias_depth(ctx, n, depthCopy); - depthSpan = depthCopy; - } - - switch (dstType) { - case GL_UNSIGNED_BYTE: - { - GLubyte *dst = (GLubyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = FLOAT_TO_UBYTE( depthSpan[i] ); - } - } - break; - case GL_BYTE: - { - GLbyte *dst = (GLbyte *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = FLOAT_TO_BYTE( depthSpan[i] ); - } - } - break; - case GL_UNSIGNED_SHORT: - { - GLushort *dst = (GLushort *) dest; - GLuint i; - for (i = 0; i < n; i++) { - CLAMPED_FLOAT_TO_USHORT(dst[i], depthSpan[i]); - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_SHORT: - { - GLshort *dst = (GLshort *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = FLOAT_TO_SHORT( depthSpan[i] ); - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - case GL_UNSIGNED_INT: - { - GLuint *dst = (GLuint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = FLOAT_TO_UINT( depthSpan[i] ); - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_INT: - { - GLint *dst = (GLint *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = FLOAT_TO_INT( depthSpan[i] ); - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_FLOAT: - { - GLfloat *dst = (GLfloat *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = depthSpan[i]; - } - if (dstPacking->SwapBytes) { - _mesa_swap4( (GLuint *) dst, n ); - } - } - break; - case GL_HALF_FLOAT_ARB: - { - GLhalfARB *dst = (GLhalfARB *) dest; - GLuint i; - for (i = 0; i < n; i++) { - dst[i] = _mesa_float_to_half(depthSpan[i]); - } - if (dstPacking->SwapBytes) { - _mesa_swap2( (GLushort *) dst, n ); - } - } - break; - default: - _mesa_problem(ctx, "bad type in _mesa_pack_depth_span"); - } - - free(depthCopy); -} - - - -/** - * Pack depth and stencil values as GL_DEPTH_STENCIL/GL_UNSIGNED_INT_24_8. - */ -void -_mesa_pack_depth_stencil_span(struct gl_context *ctx, GLuint n, GLuint *dest, - const GLfloat *depthVals, - const GLstencil *stencilVals, - const struct gl_pixelstore_attrib *dstPacking) -{ - GLfloat *depthCopy = (GLfloat *) malloc(n * sizeof(GLfloat)); - GLstencil *stencilCopy = (GLstencil *) malloc(n * sizeof(GLstencil)); - GLuint i; - - if (!depthCopy || !stencilCopy) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); - free(depthCopy); - free(stencilCopy); - return; - } - - if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { - memcpy(depthCopy, depthVals, n * sizeof(GLfloat)); - _mesa_scale_and_bias_depth(ctx, n, depthCopy); - depthVals = depthCopy; - } - - if (ctx->Pixel.IndexShift || - ctx->Pixel.IndexOffset || - ctx->Pixel.MapStencilFlag) { - memcpy(stencilCopy, stencilVals, n * sizeof(GLstencil)); - _mesa_apply_stencil_transfer_ops(ctx, n, stencilCopy); - stencilVals = stencilCopy; - } - - for (i = 0; i < n; i++) { - GLuint z = (GLuint) (depthVals[i] * 0xffffff); - dest[i] = (z << 8) | (stencilVals[i] & 0xff); - } - - if (dstPacking->SwapBytes) { - _mesa_swap4(dest, n); - } - - free(depthCopy); - free(stencilCopy); -} - - - - -/** - * Unpack image data. Apply byte swapping, byte flipping (bitmap). - * Return all image data in a contiguous block. This is used when we - * compile glDrawPixels, glTexImage, etc into a display list. We - * need a copy of the data in a standard format. - */ -void * -_mesa_unpack_image( GLuint dimensions, - GLsizei width, GLsizei height, GLsizei depth, - GLenum format, GLenum type, const GLvoid *pixels, - const struct gl_pixelstore_attrib *unpack ) -{ - GLint bytesPerRow, compsPerRow; - GLboolean flipBytes, swap2, swap4; - - if (!pixels) - return NULL; /* not necessarily an error */ - - if (width <= 0 || height <= 0 || depth <= 0) - return NULL; /* generate error later */ - - if (type == GL_BITMAP) { - bytesPerRow = (width + 7) >> 3; - flipBytes = unpack->LsbFirst; - swap2 = swap4 = GL_FALSE; - compsPerRow = 0; - } - else { - const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type); - GLint components = _mesa_components_in_format(format); - GLint bytesPerComp; - - if (_mesa_type_is_packed(type)) - components = 1; - - if (bytesPerPixel <= 0 || components <= 0) - return NULL; /* bad format or type. generate error later */ - bytesPerRow = bytesPerPixel * width; - bytesPerComp = bytesPerPixel / components; - flipBytes = GL_FALSE; - swap2 = (bytesPerComp == 2) && unpack->SwapBytes; - swap4 = (bytesPerComp == 4) && unpack->SwapBytes; - compsPerRow = components * width; - assert(compsPerRow >= width); - } - - { - GLubyte *destBuffer - = (GLubyte *) malloc(bytesPerRow * height * depth); - GLubyte *dst; - GLint img, row; - if (!destBuffer) - return NULL; /* generate GL_OUT_OF_MEMORY later */ - - dst = destBuffer; - for (img = 0; img < depth; img++) { - for (row = 0; row < height; row++) { - const GLvoid *src = _mesa_image_address(dimensions, unpack, pixels, - width, height, format, type, img, row, 0); - - if ((type == GL_BITMAP) && (unpack->SkipPixels & 0x7)) { - GLint i; - flipBytes = GL_FALSE; - if (unpack->LsbFirst) { - GLubyte srcMask = 1 << (unpack->SkipPixels & 0x7); - GLubyte dstMask = 128; - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 128) { - srcMask = 1; - s++; - } - else { - srcMask = srcMask << 1; - } - if (dstMask == 1) { - dstMask = 128; - d++; - *d = 0; - } - else { - dstMask = dstMask >> 1; - } - } - } - else { - GLubyte srcMask = 128 >> (unpack->SkipPixels & 0x7); - GLubyte dstMask = 128; - const GLubyte *s = src; - GLubyte *d = dst; - *d = 0; - for (i = 0; i < width; i++) { - if (*s & srcMask) { - *d |= dstMask; - } - if (srcMask == 1) { - srcMask = 128; - s++; - } - else { - srcMask = srcMask >> 1; - } - if (dstMask == 1) { - dstMask = 128; - d++; - *d = 0; - } - else { - dstMask = dstMask >> 1; - } - } - } - } - else { - memcpy(dst, src, bytesPerRow); - } - - /* byte flipping/swapping */ - if (flipBytes) { - flip_bytes((GLubyte *) dst, bytesPerRow); - } - else if (swap2) { - _mesa_swap2((GLushort*) dst, compsPerRow); - } - else if (swap4) { - _mesa_swap4((GLuint*) dst, compsPerRow); - } - dst += bytesPerRow; - } - } - return destBuffer; - } -} - +/* + * Mesa 3-D graphics library + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009-2010 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 + * THEA AUTHORS 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 pack.c + * Image and pixel span packing and unpacking. + */ + + +#include "glheader.h" +#include "colormac.h" +#include "enums.h" +#include "image.h" +#include "imports.h" +#include "mtypes.h" +#include "pack.h" +#include "pixeltransfer.h" +#include "imports.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_r11g11b10f.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 ) + + +/** + * Flip the 8 bits in each byte of the given array. + * + * \param p array. + * \param n number of bytes. + * + * \todo try this trick to flip bytes someday: + * \code + * v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); + * v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); + * v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); + * \endcode + */ +static void +flip_bytes( GLubyte *p, GLuint n ) +{ + GLuint i, a, b; + for (i = 0; i < n; i++) { + b = (GLuint) p[i]; /* words are often faster than bytes */ + a = ((b & 0x01) << 7) | + ((b & 0x02) << 5) | + ((b & 0x04) << 3) | + ((b & 0x08) << 1) | + ((b & 0x10) >> 1) | + ((b & 0x20) >> 3) | + ((b & 0x40) >> 5) | + ((b & 0x80) >> 7); + p[i] = (GLubyte) a; + } +} + + + +/* + * Unpack a 32x32 pixel polygon stipple from user memory using the + * current pixel unpack settings. + */ +void +_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32], + const struct gl_pixelstore_attrib *unpacking ) +{ + GLubyte *ptrn = (GLubyte *) _mesa_unpack_bitmap(32, 32, pattern, unpacking); + if (ptrn) { + /* Convert pattern from GLubytes to GLuints and handle big/little + * endian differences + */ + GLubyte *p = ptrn; + GLint i; + for (i = 0; i < 32; i++) { + dest[i] = (p[0] << 24) + | (p[1] << 16) + | (p[2] << 8) + | (p[3] ); + p += 4; + } + free(ptrn); + } +} + + +/* + * Pack polygon stipple into user memory given current pixel packing + * settings. + */ +void +_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest, + const struct gl_pixelstore_attrib *packing ) +{ + /* Convert pattern from GLuints to GLubytes to handle big/little + * endian differences. + */ + GLubyte ptrn[32*4]; + GLint i; + for (i = 0; i < 32; i++) { + ptrn[i * 4 + 0] = (GLubyte) ((pattern[i] >> 24) & 0xff); + ptrn[i * 4 + 1] = (GLubyte) ((pattern[i] >> 16) & 0xff); + ptrn[i * 4 + 2] = (GLubyte) ((pattern[i] >> 8 ) & 0xff); + ptrn[i * 4 + 3] = (GLubyte) ((pattern[i] ) & 0xff); + } + + _mesa_pack_bitmap(32, 32, ptrn, dest, packing); +} + + +/* + * Unpack bitmap data. Resulting data will be in most-significant-bit-first + * order with row alignment = 1 byte. + */ +GLvoid * +_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels, + const struct gl_pixelstore_attrib *packing ) +{ + GLint bytes, row, width_in_bytes; + GLubyte *buffer, *dst; + + if (!pixels) + return NULL; + + /* Alloc dest storage */ + bytes = ((width + 7) / 8 * height); + buffer = (GLubyte *) malloc( bytes ); + if (!buffer) + return NULL; + + width_in_bytes = CEILING( width, 8 ); + dst = buffer; + for (row = 0; row < height; row++) { + const GLubyte *src = (const GLubyte *) + _mesa_image_address2d(packing, pixels, width, height, + GL_COLOR_INDEX, GL_BITMAP, row, 0); + if (!src) { + free(buffer); + return NULL; + } + + if ((packing->SkipPixels & 7) == 0) { + memcpy( dst, src, width_in_bytes ); + if (packing->LsbFirst) { + flip_bytes( dst, width_in_bytes ); + } + } + else { + /* handling SkipPixels is a bit tricky (no pun intended!) */ + GLint i; + if (packing->LsbFirst) { + GLubyte srcMask = 1 << (packing->SkipPixels & 0x7); + GLubyte dstMask = 128; + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 128) { + srcMask = 1; + s++; + } + else { + srcMask = srcMask << 1; + } + if (dstMask == 1) { + dstMask = 128; + d++; + *d = 0; + } + else { + dstMask = dstMask >> 1; + } + } + } + else { + GLubyte srcMask = 128 >> (packing->SkipPixels & 0x7); + GLubyte dstMask = 128; + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 1) { + srcMask = 128; + s++; + } + else { + srcMask = srcMask >> 1; + } + if (dstMask == 1) { + dstMask = 128; + d++; + *d = 0; + } + else { + dstMask = dstMask >> 1; + } + } + } + } + dst += width_in_bytes; + } + + return buffer; +} + + +/* + * Pack bitmap data. + */ +void +_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source, + GLubyte *dest, const struct gl_pixelstore_attrib *packing ) +{ + GLint row, width_in_bytes; + const GLubyte *src; + + if (!source) + return; + + width_in_bytes = CEILING( width, 8 ); + src = source; + for (row = 0; row < height; row++) { + GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dest, + width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0); + if (!dst) + return; + + if ((packing->SkipPixels & 7) == 0) { + memcpy( dst, src, width_in_bytes ); + if (packing->LsbFirst) { + flip_bytes( dst, width_in_bytes ); + } + } + else { + /* handling SkipPixels is a bit tricky (no pun intended!) */ + GLint i; + if (packing->LsbFirst) { + GLubyte srcMask = 128; + GLubyte dstMask = 1 << (packing->SkipPixels & 0x7); + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 1) { + srcMask = 128; + s++; + } + else { + srcMask = srcMask >> 1; + } + if (dstMask == 128) { + dstMask = 1; + d++; + *d = 0; + } + else { + dstMask = dstMask << 1; + } + } + } + else { + GLubyte srcMask = 128; + GLubyte dstMask = 128 >> (packing->SkipPixels & 0x7); + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 1) { + srcMask = 128; + s++; + } + else { + srcMask = srcMask >> 1; + } + if (dstMask == 1) { + dstMask = 128; + d++; + *d = 0; + } + else { + dstMask = dstMask >> 1; + } + } + } + } + src += width_in_bytes; + } +} + + +/** + * Get indexes of color components for a basic color format, such as + * GL_RGBA, GL_RED, GL_LUMINANCE_ALPHA, etc. Return -1 for indexes + * that do not apply. + */ +static void +get_component_indexes(GLenum format, + GLint *redIndex, + GLint *greenIndex, + GLint *blueIndex, + GLint *alphaIndex, + GLint *luminanceIndex, + GLint *intensityIndex) +{ + *redIndex = -1; + *greenIndex = -1; + *blueIndex = -1; + *alphaIndex = -1; + *luminanceIndex = -1; + *intensityIndex = -1; + + switch (format) { + case GL_LUMINANCE: + case GL_LUMINANCE_INTEGER_EXT: + *luminanceIndex = 0; + break; + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE_ALPHA_INTEGER_EXT: + *luminanceIndex = 0; + *alphaIndex = 1; + break; + case GL_INTENSITY: + *intensityIndex = 0; + break; + case GL_RED: + case GL_RED_INTEGER_EXT: + *redIndex = 0; + break; + case GL_GREEN: + case GL_GREEN_INTEGER_EXT: + *greenIndex = 0; + break; + case GL_BLUE: + case GL_BLUE_INTEGER_EXT: + *blueIndex = 0; + break; + case GL_ALPHA: + case GL_ALPHA_INTEGER_EXT: + *alphaIndex = 0; + break; + case GL_RG: + case GL_RG_INTEGER: + *redIndex = 0; + *greenIndex = 1; + break; + case GL_RGB: + case GL_RGB_INTEGER_EXT: + *redIndex = 0; + *greenIndex = 1; + *blueIndex = 2; + break; + case GL_BGR: + case GL_BGR_INTEGER_EXT: + *blueIndex = 0; + *greenIndex = 1; + *redIndex = 2; + break; + case GL_RGBA: + case GL_RGBA_INTEGER_EXT: + *redIndex = 0; + *greenIndex = 1; + *blueIndex = 2; + *alphaIndex = 3; + break; + case GL_BGRA: + case GL_BGRA_INTEGER: + *redIndex = 2; + *greenIndex = 1; + *blueIndex = 0; + *alphaIndex = 3; + break; + case GL_ABGR_EXT: + *redIndex = 3; + *greenIndex = 2; + *blueIndex = 1; + *alphaIndex = 0; + break; + case GL_DU8DV8_ATI: + case GL_DUDV_ATI: + *redIndex = 0; + *greenIndex = 1; + break; + default: + assert(0 && "bad format in get_component_indexes()"); + } +} + + + +/** + * For small integer types, return the min and max possible values. + * Used for clamping floats to unscaled integer types. + * \return GL_TRUE if type is handled, GL_FALSE otherwise. + */ +static GLboolean +get_type_min_max(GLenum type, GLfloat *min, GLfloat *max) +{ + switch (type) { + case GL_BYTE: + *min = -128.0; + *max = 127.0; + return GL_TRUE; + case GL_UNSIGNED_BYTE: + *min = 0.0; + *max = 255.0; + return GL_TRUE; + case GL_SHORT: + *min = -32768.0; + *max = 32767.0; + return GL_TRUE; + case GL_UNSIGNED_SHORT: + *min = 0.0; + *max = 65535.0; + return GL_TRUE; + default: + return GL_FALSE; + } +} + + + +/** + * Used to pack an array [][4] of RGBA float colors as specified + * by the dstFormat, dstType and dstPacking. Used by glReadPixels. + * Historically, the RGBA values were in [0,1] and rescaled to fit + * into GLubytes, etc. But with new integer formats, the RGBA values + * may have any value and we don't always rescale when converting to + * integers. + * + * Note: the rgba values will be modified by this function when any pixel + * transfer ops are enabled. + */ +void +_mesa_pack_rgba_span_float(struct gl_context *ctx, GLuint n, GLfloat rgba[][4], + GLenum dstFormat, GLenum dstType, + GLvoid *dstAddr, + const struct gl_pixelstore_attrib *dstPacking, + GLbitfield transferOps) +{ + GLfloat *luminance; + const GLint comps = _mesa_components_in_format(dstFormat); + const GLboolean intDstFormat = _mesa_is_integer_format(dstFormat); + GLuint i; + + if (dstFormat == GL_LUMINANCE || + dstFormat == GL_LUMINANCE_ALPHA || + dstFormat == GL_LUMINANCE_INTEGER_EXT || + dstFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT) { + luminance = (GLfloat *) malloc(n * sizeof(GLfloat)); + if (!luminance) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); + return; + } + } + else { + luminance = NULL; + } + + if (transferOps) { + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + } + + /* + * Component clamping (besides clamping to [0,1] in + * _mesa_apply_rgba_transfer_ops()). + */ + if (intDstFormat) { + /* clamping to dest type's min/max values */ + GLfloat min, max; + if (get_type_min_max(dstType, &min, &max)) { + for (i = 0; i < n; i++) { + rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], min, max); + rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], min, max); + rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], min, max); + rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], min, max); + } + } + } + else if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) { + /* compute luminance values */ + if (transferOps & IMAGE_CLAMP_BIT) { + for (i = 0; i < n; i++) { + GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; + luminance[i] = CLAMP(sum, 0.0F, 1.0F); + } + } + else { + for (i = 0; i < n; i++) { + luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; + } + } + } + + /* + * Pack/store the pixels. Ugh! Lots of cases!!! + */ + switch (dstType) { + case GL_UNSIGNED_BYTE: + { + GLubyte *dst = (GLubyte *) dstAddr; + switch (dstFormat) { + case GL_RED: + for (i=0;iSwapBytes) { + GLint swapSize = _mesa_sizeof_packed_type(dstType); + if (swapSize == 2) { + if (dstPacking->SwapBytes) { + _mesa_swap2((GLushort *) dstAddr, n * comps); + } + } + else if (swapSize == 4) { + if (dstPacking->SwapBytes) { + _mesa_swap4((GLuint *) dstAddr, n * comps); + } + } + } + + free(luminance); +} + + + +#define SWAP2BYTE(VALUE) \ + { \ + GLubyte *bytes = (GLubyte *) &(VALUE); \ + GLubyte tmp = bytes[0]; \ + bytes[0] = bytes[1]; \ + bytes[1] = tmp; \ + } + +#define SWAP4BYTE(VALUE) \ + { \ + GLubyte *bytes = (GLubyte *) &(VALUE); \ + GLubyte tmp = bytes[0]; \ + bytes[0] = bytes[3]; \ + bytes[3] = tmp; \ + tmp = bytes[1]; \ + bytes[1] = bytes[2]; \ + bytes[2] = tmp; \ + } + + +static void +extract_uint_indexes(GLuint n, GLuint indexes[], + GLenum srcFormat, GLenum srcType, const GLvoid *src, + const struct gl_pixelstore_attrib *unpack ) +{ + ASSERT(srcFormat == GL_COLOR_INDEX || srcFormat == GL_STENCIL_INDEX); + + ASSERT(srcType == GL_BITMAP || + srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_UNSIGNED_INT_24_8_EXT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT); + + switch (srcType) { + case GL_BITMAP: + { + GLubyte *ubsrc = (GLubyte *) src; + if (unpack->LsbFirst) { + GLubyte mask = 1 << (unpack->SkipPixels & 0x7); + GLuint i; + for (i = 0; i < n; i++) { + indexes[i] = (*ubsrc & mask) ? 1 : 0; + if (mask == 128) { + mask = 1; + ubsrc++; + } + else { + mask = mask << 1; + } + } + } + else { + GLubyte mask = 128 >> (unpack->SkipPixels & 0x7); + GLuint i; + for (i = 0; i < n; i++) { + indexes[i] = (*ubsrc & mask) ? 1 : 0; + if (mask == 1) { + mask = 128; + ubsrc++; + } + else { + mask = mask >> 1; + } + } + } + } + break; + case GL_UNSIGNED_BYTE: + { + GLuint i; + const GLubyte *s = (const GLubyte *) src; + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + break; + case GL_BYTE: + { + GLuint i; + const GLbyte *s = (const GLbyte *) src; + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + break; + case GL_UNSIGNED_SHORT: + { + GLuint i; + const GLushort *s = (const GLushort *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLushort value = s[i]; + SWAP2BYTE(value); + indexes[i] = value; + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + } + break; + case GL_SHORT: + { + GLuint i; + const GLshort *s = (const GLshort *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLshort value = s[i]; + SWAP2BYTE(value); + indexes[i] = value; + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + } + break; + case GL_UNSIGNED_INT: + { + GLuint i; + const GLuint *s = (const GLuint *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLuint value = s[i]; + SWAP4BYTE(value); + indexes[i] = value; + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + } + break; + case GL_INT: + { + GLuint i; + const GLint *s = (const GLint *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLint value = s[i]; + SWAP4BYTE(value); + indexes[i] = value; + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i]; + } + } + break; + case GL_FLOAT: + { + GLuint i; + const GLfloat *s = (const GLfloat *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLfloat value = s[i]; + SWAP4BYTE(value); + indexes[i] = (GLuint) value; + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = (GLuint) s[i]; + } + } + break; + case GL_HALF_FLOAT_ARB: + { + GLuint i; + const GLhalfARB *s = (const GLhalfARB *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLhalfARB value = s[i]; + SWAP2BYTE(value); + indexes[i] = (GLuint) _mesa_half_to_float(value); + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = (GLuint) _mesa_half_to_float(s[i]); + } + } + break; + case GL_UNSIGNED_INT_24_8_EXT: + { + GLuint i; + const GLuint *s = (const GLuint *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLuint value = s[i]; + SWAP4BYTE(value); + indexes[i] = value & 0xff; /* lower 8 bits */ + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i] & 0xff; /* lower 8 bits */ + } + } + break; + + default: + _mesa_problem(NULL, "bad srcType in extract_uint_indexes"); + return; + } +} + + +/** + * Return source/dest RGBA indexes for unpacking pixels. + */ +static void +get_component_mapping(GLenum format, + GLint *rSrc, + GLint *gSrc, + GLint *bSrc, + GLint *aSrc, + GLint *rDst, + GLint *gDst, + GLint *bDst, + GLint *aDst) +{ + switch (format) { + case GL_RED: + case GL_RED_INTEGER_EXT: + *rSrc = 0; + *gSrc = *bSrc = *aSrc = -1; + break; + case GL_GREEN: + case GL_GREEN_INTEGER_EXT: + *gSrc = 0; + *rSrc = *bSrc = *aSrc = -1; + break; + case GL_BLUE: + case GL_BLUE_INTEGER_EXT: + *bSrc = 0; + *rSrc = *gSrc = *aSrc = -1; + break; + case GL_ALPHA: + case GL_ALPHA_INTEGER_EXT: + *rSrc = *gSrc = *bSrc = -1; + *aSrc = 0; + break; + case GL_LUMINANCE: + case GL_LUMINANCE_INTEGER_EXT: + *rSrc = *gSrc = *bSrc = 0; + *aSrc = -1; + break; + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE_ALPHA_INTEGER_EXT: + *rSrc = *gSrc = *bSrc = 0; + *aSrc = 1; + break; + case GL_INTENSITY: + *rSrc = *gSrc = *bSrc = *aSrc = 0; + break; + case GL_RG: + case GL_RG_INTEGER: + *rSrc = 0; + *gSrc = 1; + *bSrc = -1; + *aSrc = -1; + *rDst = 0; + *gDst = 1; + *bDst = 2; + *aDst = 3; + break; + case GL_RGB: + case GL_RGB_INTEGER: + *rSrc = 0; + *gSrc = 1; + *bSrc = 2; + *aSrc = -1; + *rDst = 0; + *gDst = 1; + *bDst = 2; + *aDst = 3; + break; + case GL_BGR: + *rSrc = 2; + *gSrc = 1; + *bSrc = 0; + *aSrc = -1; + *rDst = 2; + *gDst = 1; + *bDst = 0; + *aDst = 3; + break; + case GL_RGBA: + case GL_RGBA_INTEGER: + *rSrc = 0; + *gSrc = 1; + *bSrc = 2; + *aSrc = 3; + *rDst = 0; + *gDst = 1; + *bDst = 2; + *aDst = 3; + break; + case GL_BGRA: + *rSrc = 2; + *gSrc = 1; + *bSrc = 0; + *aSrc = 3; + *rDst = 2; + *gDst = 1; + *bDst = 0; + *aDst = 3; + break; + case GL_ABGR_EXT: + *rSrc = 3; + *gSrc = 2; + *bSrc = 1; + *aSrc = 0; + *rDst = 3; + *gDst = 2; + *bDst = 1; + *aDst = 0; + break; + case GL_DU8DV8_ATI: + case GL_DUDV_ATI: + *rSrc = 0; + *gSrc = 1; + *bSrc = -1; + *aSrc = -1; + break; + default: + _mesa_problem(NULL, "bad srcFormat %s in get_component_mapping", + _mesa_lookup_enum_by_nr(format)); + return; + } +} + + + +/* + * This function extracts floating point RGBA values from arbitrary + * image data. srcFormat and srcType are the format and type parameters + * passed to glDrawPixels, glTexImage[123]D, glTexSubImage[123]D, etc. + * + * Refering to section 3.6.4 of the OpenGL 1.2 spec, this function + * implements the "Conversion to floating point", "Conversion to RGB", + * and "Final Expansion to RGBA" operations. + * + * Args: n - number of pixels + * rgba - output colors + * srcFormat - format of incoming data + * srcType - data type of incoming data + * src - source data pointer + * swapBytes - perform byteswapping of incoming data? + */ +static void +extract_float_rgba(GLuint n, GLfloat rgba[][4], + GLenum srcFormat, GLenum srcType, const GLvoid *src, + GLboolean swapBytes) +{ + GLint rSrc, gSrc, bSrc, aSrc; + GLint stride; + GLint rDst, bDst, gDst, aDst; + GLboolean intFormat; + GLfloat rs = 1.0f, gs = 1.0f, bs = 1.0f, as = 1.0f; /* scale factors */ + + ASSERT(srcFormat == GL_RED || + srcFormat == GL_GREEN || + srcFormat == GL_BLUE || + srcFormat == GL_ALPHA || + srcFormat == GL_LUMINANCE || + srcFormat == GL_LUMINANCE_ALPHA || + srcFormat == GL_INTENSITY || + srcFormat == GL_RG || + srcFormat == GL_RGB || + srcFormat == GL_BGR || + srcFormat == GL_RGBA || + srcFormat == GL_BGRA || + srcFormat == GL_ABGR_EXT || + srcFormat == GL_DU8DV8_ATI || + srcFormat == GL_DUDV_ATI || + srcFormat == GL_RED_INTEGER_EXT || + srcFormat == GL_GREEN_INTEGER_EXT || + srcFormat == GL_BLUE_INTEGER_EXT || + srcFormat == GL_ALPHA_INTEGER_EXT || + srcFormat == GL_RGB_INTEGER_EXT || + srcFormat == GL_RGBA_INTEGER_EXT || + srcFormat == GL_BGR_INTEGER_EXT || + srcFormat == GL_BGRA_INTEGER_EXT || + srcFormat == GL_LUMINANCE_INTEGER_EXT || + srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); + + ASSERT(srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT || + srcType == GL_UNSIGNED_BYTE_3_3_2 || + srcType == GL_UNSIGNED_BYTE_2_3_3_REV || + srcType == GL_UNSIGNED_SHORT_5_6_5 || + srcType == GL_UNSIGNED_SHORT_5_6_5_REV || + srcType == GL_UNSIGNED_SHORT_4_4_4_4 || + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || + srcType == GL_UNSIGNED_SHORT_5_5_5_1 || + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV || + srcType == GL_UNSIGNED_INT_10_10_10_2 || + srcType == GL_UNSIGNED_INT_2_10_10_10_REV || + srcType == GL_UNSIGNED_INT_5_9_9_9_REV || + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV); + + get_component_mapping(srcFormat, + &rSrc, &gSrc, &bSrc, &aSrc, + &rDst, &gDst, &bDst, &aDst); + + stride = _mesa_components_in_format(srcFormat); + + intFormat = _mesa_is_integer_format(srcFormat); + +#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT_FLT, DEFAULT_INT, TYPE, CONVERSION) \ + if ((SRC_INDEX) < 0) { \ + GLuint i; \ + if (intFormat) { \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = DEFAULT_INT; \ + } \ + } \ + else { \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = DEFAULT_FLT; \ + } \ + } \ + } \ + else if (swapBytes) { \ + const TYPE *s = (const TYPE *) src; \ + GLuint i; \ + for (i = 0; i < n; i++) { \ + TYPE value = s[SRC_INDEX]; \ + if (sizeof(TYPE) == 2) { \ + SWAP2BYTE(value); \ + } \ + else if (sizeof(TYPE) == 4) { \ + SWAP4BYTE(value); \ + } \ + if (intFormat) \ + rgba[i][DST_INDEX] = (GLfloat) value; \ + else \ + rgba[i][DST_INDEX] = (GLfloat) CONVERSION(value); \ + s += stride; \ + } \ + } \ + else { \ + const TYPE *s = (const TYPE *) src; \ + GLuint i; \ + if (intFormat) { \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = (GLfloat) s[SRC_INDEX]; \ + s += stride; \ + } \ + } \ + else { \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = (GLfloat) CONVERSION(s[SRC_INDEX]); \ + s += stride; \ + } \ + } \ + } + + switch (srcType) { + case GL_UNSIGNED_BYTE: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 255, GLubyte, UBYTE_TO_FLOAT); + break; + case GL_BYTE: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 127, GLbyte, BYTE_TO_FLOAT); + break; + case GL_UNSIGNED_SHORT: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 0xffff, GLushort, USHORT_TO_FLOAT); + break; + case GL_SHORT: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 32767, GLshort, SHORT_TO_FLOAT); + break; + case GL_UNSIGNED_INT: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 0xffffffff, GLuint, UINT_TO_FLOAT); + break; + case GL_INT: + PROCESS(rSrc, RCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); + PROCESS(gSrc, GCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); + PROCESS(bSrc, BCOMP, 0.0F, 0, GLint, INT_TO_FLOAT); + PROCESS(aSrc, ACOMP, 1.0F, 2147483647, GLint, INT_TO_FLOAT); + break; + case GL_FLOAT: + PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); + PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); + PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLfloat, (GLfloat)); + PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLfloat, (GLfloat)); + break; + case GL_HALF_FLOAT_ARB: + PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); + PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); + PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float); + PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLhalfARB, _mesa_half_to_float); + break; + case GL_UNSIGNED_BYTE_3_3_2: + { + const GLubyte *ubsrc = (const GLubyte *) src; + GLuint i; + if (!intFormat) { + rs = 1.0F / 7.0F; + gs = 1.0F / 7.0F; + bs = 1.0F / 3.0F; + } + for (i = 0; i < n; i ++) { + GLubyte p = ubsrc[i]; + rgba[i][rDst] = ((p >> 5) ) * rs; + rgba[i][gDst] = ((p >> 2) & 0x7) * gs; + rgba[i][bDst] = ((p ) & 0x3) * bs; + rgba[i][aDst] = 1.0F; + } + } + break; + case GL_UNSIGNED_BYTE_2_3_3_REV: + { + const GLubyte *ubsrc = (const GLubyte *) src; + GLuint i; + if (!intFormat) { + rs = 1.0F / 7.0F; + gs = 1.0F / 7.0F; + bs = 1.0F / 3.0F; + } + for (i = 0; i < n; i ++) { + GLubyte p = ubsrc[i]; + rgba[i][rDst] = ((p ) & 0x7) * rs; + rgba[i][gDst] = ((p >> 3) & 0x7) * gs; + rgba[i][bDst] = ((p >> 6) ) * bs; + rgba[i][aDst] = 1.0F; + } + } + break; + case GL_UNSIGNED_SHORT_5_6_5: + if (!intFormat) { + rs = 1.0F / 31.0F; + gs = 1.0F / 63.0F; + bs = 1.0F / 31.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 11) ) * rs; + rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; + rgba[i][bDst] = ((p ) & 0x1f) * bs; + rgba[i][aDst] = 1.0F; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 11) ) * rs; + rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; + rgba[i][bDst] = ((p ) & 0x1f) * bs; + rgba[i][aDst] = 1.0F; + } + } + break; + case GL_UNSIGNED_SHORT_5_6_5_REV: + if (!intFormat) { + rs = 1.0F / 31.0F; + gs = 1.0F / 63.0F; + bs = 1.0F / 31.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0x1f) * rs; + rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; + rgba[i][bDst] = ((p >> 11) ) * bs; + rgba[i][aDst] = 1.0F; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0x1f) * rs; + rgba[i][gDst] = ((p >> 5) & 0x3f) * gs; + rgba[i][bDst] = ((p >> 11) ) * bs; + rgba[i][aDst] = 1.0F; + } + } + break; + case GL_UNSIGNED_SHORT_4_4_4_4: + if (!intFormat) { + rs = gs = bs = as = 1.0F / 15.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 12) ) * rs; + rgba[i][gDst] = ((p >> 8) & 0xf) * gs; + rgba[i][bDst] = ((p >> 4) & 0xf) * bs; + rgba[i][aDst] = ((p ) & 0xf) * as; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 12) ) * rs; + rgba[i][gDst] = ((p >> 8) & 0xf) * gs; + rgba[i][bDst] = ((p >> 4) & 0xf) * bs; + rgba[i][aDst] = ((p ) & 0xf) * as; + } + } + break; + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + if (!intFormat) { + rs = gs = bs = as = 1.0F / 15.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0xf) * rs; + rgba[i][gDst] = ((p >> 4) & 0xf) * gs; + rgba[i][bDst] = ((p >> 8) & 0xf) * bs; + rgba[i][aDst] = ((p >> 12) ) * as; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0xf) * rs; + rgba[i][gDst] = ((p >> 4) & 0xf) * gs; + rgba[i][bDst] = ((p >> 8) & 0xf) * bs; + rgba[i][aDst] = ((p >> 12) ) * as; + } + } + break; + case GL_UNSIGNED_SHORT_5_5_5_1: + if (!intFormat) { + rs = gs = bs = 1.0F / 31.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 11) ) * rs; + rgba[i][gDst] = ((p >> 6) & 0x1f) * gs; + rgba[i][bDst] = ((p >> 1) & 0x1f) * bs; + rgba[i][aDst] = ((p ) & 0x1) * as; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 11) ) * rs; + rgba[i][gDst] = ((p >> 6) & 0x1f) * gs; + rgba[i][bDst] = ((p >> 1) & 0x1f) * bs; + rgba[i][aDst] = ((p ) & 0x1) * as; + } + } + break; + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + if (!intFormat) { + rs = gs = bs = 1.0F / 31.0F; + } + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0x1f) * rs; + rgba[i][gDst] = ((p >> 5) & 0x1f) * gs; + rgba[i][bDst] = ((p >> 10) & 0x1f) * bs; + rgba[i][aDst] = ((p >> 15) ) * as; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0x1f) * rs; + rgba[i][gDst] = ((p >> 5) & 0x1f) * gs; + rgba[i][bDst] = ((p >> 10) & 0x1f) * bs; + rgba[i][aDst] = ((p >> 15) ) * as; + } + } + break; + case GL_UNSIGNED_INT_8_8_8_8: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + if (intFormat) { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = (GLfloat) ((p ) & 0xff); + rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff); + rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff); + rgba[i][aDst] = (GLfloat) ((p >> 24) ); + } + } + else { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff); + rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); + rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); + rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) ); + } + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + if (intFormat) { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = (GLfloat) ((p >> 24) ); + rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff); + rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff); + rgba[i][aDst] = (GLfloat) ((p ) & 0xff); + } + } + else { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) ); + rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); + rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); + rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff); + } + } + } + break; + case GL_UNSIGNED_INT_8_8_8_8_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + if (intFormat) { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = (GLfloat) ((p >> 24) ); + rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff); + rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff); + rgba[i][aDst] = (GLfloat) ((p ) & 0xff); + } + } + else { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) ); + rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); + rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); + rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff); + } + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + if (intFormat) { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = (GLfloat) ((p ) & 0xff); + rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff); + rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff); + rgba[i][aDst] = (GLfloat) ((p >> 24) ); + } + } + else { + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff); + rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff); + rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff); + rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) ); + } + } + } + break; + case GL_UNSIGNED_INT_10_10_10_2: + if (!intFormat) { + rs = 1.0F / 1023.0F; + gs = 1.0F / 1023.0F; + bs = 1.0F / 1023.0F; + as = 1.0F / 3.0F; + } + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgba[i][rDst] = ((p >> 22) ) * rs; + rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs; + rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs; + rgba[i][aDst] = ((p ) & 0x3 ) * as; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p >> 22) ) * rs; + rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs; + rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs; + rgba[i][aDst] = ((p ) & 0x3 ) * as; + } + } + break; + case GL_UNSIGNED_INT_2_10_10_10_REV: + if (!intFormat) { + rs = 1.0F / 1023.0F; + gs = 1.0F / 1023.0F; + bs = 1.0F / 1023.0F; + as = 1.0F / 3.0F; + } + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgba[i][rDst] = ((p ) & 0x3ff) * rs; + rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs; + rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs; + rgba[i][aDst] = ((p >> 30) ) * as; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p ) & 0x3ff) * rs; + rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs; + rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs; + rgba[i][aDst] = ((p >> 30) ) * as; + } + } + break; + case GL_UNSIGNED_INT_5_9_9_9_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + GLfloat f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgb9e5_to_float3(p, f); + rgba[i][rDst] = f[0]; + rgba[i][gDst] = f[1]; + rgba[i][bDst] = f[2]; + rgba[i][aDst] = 1.0F; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + GLfloat f[3]; + for (i = 0; i < n; i ++) { + rgb9e5_to_float3(uisrc[i], f); + rgba[i][rDst] = f[0]; + rgba[i][gDst] = f[1]; + rgba[i][bDst] = f[2]; + rgba[i][aDst] = 1.0F; + } + } + break; + case GL_UNSIGNED_INT_10F_11F_11F_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + GLfloat f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + r11g11b10f_to_float3(p, f); + rgba[i][rDst] = f[0]; + rgba[i][gDst] = f[1]; + rgba[i][bDst] = f[2]; + rgba[i][aDst] = 1.0F; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + GLfloat f[3]; + for (i = 0; i < n; i ++) { + r11g11b10f_to_float3(uisrc[i], f); + rgba[i][rDst] = f[0]; + rgba[i][gDst] = f[1]; + rgba[i][bDst] = f[2]; + rgba[i][aDst] = 1.0F; + } + } + break; + default: + _mesa_problem(NULL, "bad srcType in extract float data"); + break; + } +#undef PROCESS +} + + +static INLINE GLuint +clamp_byte_to_uint(GLbyte b) +{ + return b < 0 ? 0 : b; +} + + +static INLINE GLuint +clamp_short_to_uint(GLshort s) +{ + return s < 0 ? 0 : s; +} + + +static INLINE GLuint +clamp_int_to_uint(GLint i) +{ + return i < 0 ? 0 : i; +} + + +static INLINE GLuint +clamp_float_to_uint(GLfloat f) +{ + return f < 0.0F ? 0 : IROUND(f); +} + + +static INLINE GLuint +clamp_half_to_uint(GLhalfARB h) +{ + GLfloat f = _mesa_half_to_float(h); + return f < 0.0F ? 0 : IROUND(f); +} + + +/** + * \sa extract_float_rgba() + */ +static void +extract_uint_rgba(GLuint n, GLuint rgba[][4], + GLenum srcFormat, GLenum srcType, const GLvoid *src, + GLboolean swapBytes) +{ + GLint rSrc, gSrc, bSrc, aSrc; + GLint stride; + GLint rDst, bDst, gDst, aDst; + GLboolean intFormat; + + ASSERT(srcFormat == GL_RED || + srcFormat == GL_GREEN || + srcFormat == GL_BLUE || + srcFormat == GL_ALPHA || + srcFormat == GL_LUMINANCE || + srcFormat == GL_LUMINANCE_ALPHA || + srcFormat == GL_INTENSITY || + srcFormat == GL_RG || + srcFormat == GL_RGB || + srcFormat == GL_BGR || + srcFormat == GL_RGBA || + srcFormat == GL_BGRA || + srcFormat == GL_ABGR_EXT || + srcFormat == GL_DU8DV8_ATI || + srcFormat == GL_DUDV_ATI || + srcFormat == GL_RED_INTEGER_EXT || + srcFormat == GL_GREEN_INTEGER_EXT || + srcFormat == GL_BLUE_INTEGER_EXT || + srcFormat == GL_ALPHA_INTEGER_EXT || + srcFormat == GL_RGB_INTEGER_EXT || + srcFormat == GL_RGBA_INTEGER_EXT || + srcFormat == GL_BGR_INTEGER_EXT || + srcFormat == GL_BGRA_INTEGER_EXT || + srcFormat == GL_LUMINANCE_INTEGER_EXT || + srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); + + ASSERT(srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT || + srcType == GL_UNSIGNED_BYTE_3_3_2 || + srcType == GL_UNSIGNED_BYTE_2_3_3_REV || + srcType == GL_UNSIGNED_SHORT_5_6_5 || + srcType == GL_UNSIGNED_SHORT_5_6_5_REV || + srcType == GL_UNSIGNED_SHORT_4_4_4_4 || + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || + srcType == GL_UNSIGNED_SHORT_5_5_5_1 || + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV || + srcType == GL_UNSIGNED_INT_10_10_10_2 || + srcType == GL_UNSIGNED_INT_2_10_10_10_REV || + srcType == GL_UNSIGNED_INT_5_9_9_9_REV || + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV); + + get_component_mapping(srcFormat, + &rSrc, &gSrc, &bSrc, &aSrc, + &rDst, &gDst, &bDst, &aDst); + + stride = _mesa_components_in_format(srcFormat); + + intFormat = _mesa_is_integer_format(srcFormat); + +#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT, TYPE, CONVERSION) \ + if ((SRC_INDEX) < 0) { \ + GLuint i; \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = DEFAULT; \ + } \ + } \ + else if (swapBytes) { \ + const TYPE *s = (const TYPE *) src; \ + GLuint i; \ + for (i = 0; i < n; i++) { \ + TYPE value = s[SRC_INDEX]; \ + if (sizeof(TYPE) == 2) { \ + SWAP2BYTE(value); \ + } \ + else if (sizeof(TYPE) == 4) { \ + SWAP4BYTE(value); \ + } \ + rgba[i][DST_INDEX] = CONVERSION(value); \ + s += stride; \ + } \ + } \ + else { \ + const TYPE *s = (const TYPE *) src; \ + GLuint i; \ + for (i = 0; i < n; i++) { \ + rgba[i][DST_INDEX] = CONVERSION(s[SRC_INDEX]); \ + s += stride; \ + } \ + } + + switch (srcType) { + case GL_UNSIGNED_BYTE: + PROCESS(rSrc, RCOMP, 0, GLubyte, (GLuint)); + PROCESS(gSrc, GCOMP, 0, GLubyte, (GLuint)); + PROCESS(bSrc, BCOMP, 0, GLubyte, (GLuint)); + PROCESS(aSrc, ACOMP, 1, GLubyte, (GLuint)); + break; + case GL_BYTE: + PROCESS(rSrc, RCOMP, 0, GLbyte, clamp_byte_to_uint); + PROCESS(gSrc, GCOMP, 0, GLbyte, clamp_byte_to_uint); + PROCESS(bSrc, BCOMP, 0, GLbyte, clamp_byte_to_uint); + PROCESS(aSrc, ACOMP, 1, GLbyte, clamp_byte_to_uint); + break; + case GL_UNSIGNED_SHORT: + PROCESS(rSrc, RCOMP, 0, GLushort, (GLuint)); + PROCESS(gSrc, GCOMP, 0, GLushort, (GLuint)); + PROCESS(bSrc, BCOMP, 0, GLushort, (GLuint)); + PROCESS(aSrc, ACOMP, 1, GLushort, (GLuint)); + break; + case GL_SHORT: + PROCESS(rSrc, RCOMP, 0, GLshort, clamp_short_to_uint); + PROCESS(gSrc, GCOMP, 0, GLshort, clamp_short_to_uint); + PROCESS(bSrc, BCOMP, 0, GLshort, clamp_short_to_uint); + PROCESS(aSrc, ACOMP, 1, GLshort, clamp_short_to_uint); + break; + case GL_UNSIGNED_INT: + PROCESS(rSrc, RCOMP, 0, GLuint, (GLuint)); + PROCESS(gSrc, GCOMP, 0, GLuint, (GLuint)); + PROCESS(bSrc, BCOMP, 0, GLuint, (GLuint)); + PROCESS(aSrc, ACOMP, 1, GLuint, (GLuint)); + break; + case GL_INT: + PROCESS(rSrc, RCOMP, 0, GLint, clamp_int_to_uint); + PROCESS(gSrc, GCOMP, 0, GLint, clamp_int_to_uint); + PROCESS(bSrc, BCOMP, 0, GLint, clamp_int_to_uint); + PROCESS(aSrc, ACOMP, 1, GLint, clamp_int_to_uint); + break; + case GL_FLOAT: + PROCESS(rSrc, RCOMP, 0, GLfloat, clamp_float_to_uint); + PROCESS(gSrc, GCOMP, 0, GLfloat, clamp_float_to_uint); + PROCESS(bSrc, BCOMP, 0, GLfloat, clamp_float_to_uint); + PROCESS(aSrc, ACOMP, 1, GLfloat, clamp_float_to_uint); + break; + case GL_HALF_FLOAT_ARB: + PROCESS(rSrc, RCOMP, 0, GLhalfARB, clamp_half_to_uint); + PROCESS(gSrc, GCOMP, 0, GLhalfARB, clamp_half_to_uint); + PROCESS(bSrc, BCOMP, 0, GLhalfARB, clamp_half_to_uint); + PROCESS(aSrc, ACOMP, 1, GLhalfARB, clamp_half_to_uint); + break; + case GL_UNSIGNED_BYTE_3_3_2: + { + const GLubyte *ubsrc = (const GLubyte *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLubyte p = ubsrc[i]; + rgba[i][rDst] = ((p >> 5) ); + rgba[i][gDst] = ((p >> 2) & 0x7); + rgba[i][bDst] = ((p ) & 0x3); + rgba[i][aDst] = 1; + } + } + break; + case GL_UNSIGNED_BYTE_2_3_3_REV: + { + const GLubyte *ubsrc = (const GLubyte *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLubyte p = ubsrc[i]; + rgba[i][rDst] = ((p ) & 0x7); + rgba[i][gDst] = ((p >> 3) & 0x7); + rgba[i][bDst] = ((p >> 6) ); + rgba[i][aDst] = 1; + } + } + break; + case GL_UNSIGNED_SHORT_5_6_5: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 11) ); + rgba[i][gDst] = ((p >> 5) & 0x3f); + rgba[i][bDst] = ((p ) & 0x1f); + rgba[i][aDst] = 1; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 11) ); + rgba[i][gDst] = ((p >> 5) & 0x3f); + rgba[i][bDst] = ((p ) & 0x1f); + rgba[i][aDst] = 1; + } + } + break; + case GL_UNSIGNED_SHORT_5_6_5_REV: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0x1f); + rgba[i][gDst] = ((p >> 5) & 0x3f); + rgba[i][bDst] = ((p >> 11) ); + rgba[i][aDst] = 1; + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0x1f); + rgba[i][gDst] = ((p >> 5) & 0x3f); + rgba[i][bDst] = ((p >> 11) ); + rgba[i][aDst] = 1; + } + } + break; + case GL_UNSIGNED_SHORT_4_4_4_4: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 12) ); + rgba[i][gDst] = ((p >> 8) & 0xf); + rgba[i][bDst] = ((p >> 4) & 0xf); + rgba[i][aDst] = ((p ) & 0xf); + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 12) ); + rgba[i][gDst] = ((p >> 8) & 0xf); + rgba[i][bDst] = ((p >> 4) & 0xf); + rgba[i][aDst] = ((p ) & 0xf); + } + } + break; + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0xf); + rgba[i][gDst] = ((p >> 4) & 0xf); + rgba[i][bDst] = ((p >> 8) & 0xf); + rgba[i][aDst] = ((p >> 12) ); + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0xf); + rgba[i][gDst] = ((p >> 4) & 0xf); + rgba[i][bDst] = ((p >> 8) & 0xf); + rgba[i][aDst] = ((p >> 12) ); + } + } + break; + case GL_UNSIGNED_SHORT_5_5_5_1: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p >> 11) ); + rgba[i][gDst] = ((p >> 6) & 0x1f); + rgba[i][bDst] = ((p >> 1) & 0x1f); + rgba[i][aDst] = ((p ) & 0x1 ); + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p >> 11) ); + rgba[i][gDst] = ((p >> 6) & 0x1f); + rgba[i][bDst] = ((p >> 1) & 0x1f); + rgba[i][aDst] = ((p ) & 0x1 ); + } + } + break; + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + if (swapBytes) { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + SWAP2BYTE(p); + rgba[i][rDst] = ((p ) & 0x1f); + rgba[i][gDst] = ((p >> 5) & 0x1f); + rgba[i][bDst] = ((p >> 10) & 0x1f); + rgba[i][aDst] = ((p >> 15) ); + } + } + else { + const GLushort *ussrc = (const GLushort *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLushort p = ussrc[i]; + rgba[i][rDst] = ((p ) & 0x1f); + rgba[i][gDst] = ((p >> 5) & 0x1f); + rgba[i][bDst] = ((p >> 10) & 0x1f); + rgba[i][aDst] = ((p >> 15) ); + } + } + break; + case GL_UNSIGNED_INT_8_8_8_8: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p ) & 0xff); + rgba[i][gDst] = ((p >> 8) & 0xff); + rgba[i][bDst] = ((p >> 16) & 0xff); + rgba[i][aDst] = ((p >> 24) ); + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p >> 24) ); + rgba[i][gDst] = ((p >> 16) & 0xff); + rgba[i][bDst] = ((p >> 8) & 0xff); + rgba[i][aDst] = ((p ) & 0xff); + } + } + break; + case GL_UNSIGNED_INT_8_8_8_8_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p >> 24) ); + rgba[i][gDst] = ((p >> 16) & 0xff); + rgba[i][bDst] = ((p >> 8) & 0xff); + rgba[i][aDst] = ((p ) & 0xff); + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p ) & 0xff); + rgba[i][gDst] = ((p >> 8) & 0xff); + rgba[i][bDst] = ((p >> 16) & 0xff); + rgba[i][aDst] = ((p >> 24) ); + } + } + break; + case GL_UNSIGNED_INT_10_10_10_2: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgba[i][rDst] = ((p >> 22) ); + rgba[i][gDst] = ((p >> 12) & 0x3ff); + rgba[i][bDst] = ((p >> 2) & 0x3ff); + rgba[i][aDst] = ((p ) & 0x3 ); + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p >> 22) ); + rgba[i][gDst] = ((p >> 12) & 0x3ff); + rgba[i][bDst] = ((p >> 2) & 0x3ff); + rgba[i][aDst] = ((p ) & 0x3 ); + } + } + break; + case GL_UNSIGNED_INT_2_10_10_10_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgba[i][rDst] = ((p ) & 0x3ff); + rgba[i][gDst] = ((p >> 10) & 0x3ff); + rgba[i][bDst] = ((p >> 20) & 0x3ff); + rgba[i][aDst] = ((p >> 30) ); + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgba[i][rDst] = ((p ) & 0x3ff); + rgba[i][gDst] = ((p >> 10) & 0x3ff); + rgba[i][bDst] = ((p >> 20) & 0x3ff); + rgba[i][aDst] = ((p >> 30) ); + } + } + break; + case GL_UNSIGNED_INT_5_9_9_9_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + float f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + rgb9e5_to_float3(p, f); + rgba[i][rDst] = clamp_float_to_uint(f[0]); + rgba[i][gDst] = clamp_float_to_uint(f[1]); + rgba[i][bDst] = clamp_float_to_uint(f[2]); + rgba[i][aDst] = 1; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + float f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + rgb9e5_to_float3(p, f); + rgba[i][rDst] = clamp_float_to_uint(f[0]); + rgba[i][gDst] = clamp_float_to_uint(f[1]); + rgba[i][bDst] = clamp_float_to_uint(f[2]); + rgba[i][aDst] = 1; + } + } + break; + case GL_UNSIGNED_INT_10F_11F_11F_REV: + if (swapBytes) { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + float f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + SWAP4BYTE(p); + r11g11b10f_to_float3(p, f); + rgba[i][rDst] = clamp_float_to_uint(f[0]); + rgba[i][gDst] = clamp_float_to_uint(f[1]); + rgba[i][bDst] = clamp_float_to_uint(f[2]); + rgba[i][aDst] = 1; + } + } + else { + const GLuint *uisrc = (const GLuint *) src; + GLuint i; + float f[3]; + for (i = 0; i < n; i ++) { + GLuint p = uisrc[i]; + r11g11b10f_to_float3(p, f); + rgba[i][rDst] = clamp_float_to_uint(f[0]); + rgba[i][gDst] = clamp_float_to_uint(f[1]); + rgba[i][bDst] = clamp_float_to_uint(f[2]); + rgba[i][aDst] = 1; + } + } + break; + default: + _mesa_problem(NULL, "bad srcType in extract uint data"); + break; + } +#undef PROCESS +} + + + +/* + * Unpack a row of color image data from a client buffer according to + * the pixel unpacking parameters. + * Return GLchan values in the specified dest image format. + * This is used by glDrawPixels and glTexImage?D(). + * \param ctx - the context + * n - number of pixels in the span + * dstFormat - format of destination color array + * dest - the destination color array + * srcFormat - source image format + * srcType - source image data type + * source - source image pointer + * srcPacking - pixel unpacking parameters + * transferOps - bitmask of IMAGE_*_BIT values of operations to apply + * + * XXX perhaps expand this to process whole images someday. + */ +void +_mesa_unpack_color_span_chan( struct gl_context *ctx, + GLuint n, GLenum dstFormat, GLchan dest[], + GLenum srcFormat, GLenum srcType, + const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking, + GLbitfield transferOps ) +{ + ASSERT(dstFormat == GL_ALPHA || + dstFormat == GL_LUMINANCE || + dstFormat == GL_LUMINANCE_ALPHA || + dstFormat == GL_INTENSITY || + dstFormat == GL_RED || + dstFormat == GL_RG || + dstFormat == GL_RGB || + dstFormat == GL_RGBA || + dstFormat == GL_COLOR_INDEX); + + ASSERT(srcFormat == GL_RED || + srcFormat == GL_GREEN || + srcFormat == GL_BLUE || + srcFormat == GL_ALPHA || + srcFormat == GL_LUMINANCE || + srcFormat == GL_LUMINANCE_ALPHA || + srcFormat == GL_INTENSITY || + srcFormat == GL_RG || + srcFormat == GL_RGB || + srcFormat == GL_BGR || + srcFormat == GL_RGBA || + srcFormat == GL_BGRA || + srcFormat == GL_ABGR_EXT || + srcFormat == GL_COLOR_INDEX); + + ASSERT(srcType == GL_BITMAP || + srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT || + srcType == GL_UNSIGNED_BYTE_3_3_2 || + srcType == GL_UNSIGNED_BYTE_2_3_3_REV || + srcType == GL_UNSIGNED_SHORT_5_6_5 || + srcType == GL_UNSIGNED_SHORT_5_6_5_REV || + srcType == GL_UNSIGNED_SHORT_4_4_4_4 || + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || + srcType == GL_UNSIGNED_SHORT_5_5_5_1 || + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV || + srcType == GL_UNSIGNED_INT_10_10_10_2 || + srcType == GL_UNSIGNED_INT_2_10_10_10_REV || + srcType == GL_UNSIGNED_INT_5_9_9_9_REV || + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV); + + /* Try simple cases first */ + if (transferOps == 0) { + if (srcType == CHAN_TYPE) { + if (dstFormat == GL_RGBA) { + if (srcFormat == GL_RGBA) { + memcpy( dest, source, n * 4 * sizeof(GLchan) ); + return; + } + else if (srcFormat == GL_RGB) { + GLuint i; + const GLchan *src = (const GLchan *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + dst[3] = CHAN_MAX; + src += 3; + dst += 4; + } + return; + } + } + else if (dstFormat == GL_RGB) { + if (srcFormat == GL_RGB) { + memcpy( dest, source, n * 3 * sizeof(GLchan) ); + return; + } + else if (srcFormat == GL_RGBA) { + GLuint i; + const GLchan *src = (const GLchan *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + src += 4; + dst += 3; + } + return; + } + } + else if (dstFormat == srcFormat) { + GLint comps = _mesa_components_in_format(srcFormat); + assert(comps > 0); + memcpy( dest, source, n * comps * sizeof(GLchan) ); + return; + } + } + /* + * Common situation, loading 8bit RGBA/RGB source images + * into 16/32 bit destination. (OSMesa16/32) + */ + else if (srcType == GL_UNSIGNED_BYTE) { + if (dstFormat == GL_RGBA) { + if (srcFormat == GL_RGB) { + GLuint i; + const GLubyte *src = (const GLubyte *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = UBYTE_TO_CHAN(src[0]); + dst[1] = UBYTE_TO_CHAN(src[1]); + dst[2] = UBYTE_TO_CHAN(src[2]); + dst[3] = CHAN_MAX; + src += 3; + dst += 4; + } + return; + } + else if (srcFormat == GL_RGBA) { + GLuint i; + const GLubyte *src = (const GLubyte *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = UBYTE_TO_CHAN(src[0]); + dst[1] = UBYTE_TO_CHAN(src[1]); + dst[2] = UBYTE_TO_CHAN(src[2]); + dst[3] = UBYTE_TO_CHAN(src[3]); + src += 4; + dst += 4; + } + return; + } + } + else if (dstFormat == GL_RGB) { + if (srcFormat == GL_RGB) { + GLuint i; + const GLubyte *src = (const GLubyte *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = UBYTE_TO_CHAN(src[0]); + dst[1] = UBYTE_TO_CHAN(src[1]); + dst[2] = UBYTE_TO_CHAN(src[2]); + src += 3; + dst += 3; + } + return; + } + else if (srcFormat == GL_RGBA) { + GLuint i; + const GLubyte *src = (const GLubyte *) source; + GLchan *dst = dest; + for (i = 0; i < n; i++) { + dst[0] = UBYTE_TO_CHAN(src[0]); + dst[1] = UBYTE_TO_CHAN(src[1]); + dst[2] = UBYTE_TO_CHAN(src[2]); + src += 4; + dst += 3; + } + return; + } + } + } + } + + + /* general solution begins here */ + { + GLint dstComponents; + GLint rDst, gDst, bDst, aDst, lDst, iDst; + GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); + + if (!rgba) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + dstComponents = _mesa_components_in_format( dstFormat ); + /* source & dest image formats should have been error checked by now */ + assert(dstComponents > 0); + + /* + * Extract image data and convert to RGBA floats + */ + if (srcFormat == GL_COLOR_INDEX) { + GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); + + if (!indexes) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + extract_uint_indexes(n, indexes, srcFormat, srcType, source, + srcPacking); + + if (dstFormat == GL_COLOR_INDEX) { + GLuint i; + _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); + /* convert to GLchan and return */ + for (i = 0; i < n; i++) { + dest[i] = (GLchan) (indexes[i] & 0xff); + } + free(indexes); + free(rgba); + return; + } + else { + /* Convert indexes to RGBA */ + if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { + _mesa_shift_and_offset_ci(ctx, n, indexes); + } + _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); + } + + /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting + * with color indexes. + */ + transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); + + free(indexes); + } + else { + /* non-color index data */ + extract_float_rgba(n, rgba, srcFormat, srcType, source, + srcPacking->SwapBytes); + } + + /* Need to clamp if returning GLubytes or GLushorts */ +#if CHAN_TYPE != GL_FLOAT + transferOps |= IMAGE_CLAMP_BIT; +#endif + + if (transferOps) { + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + } + + get_component_indexes(dstFormat, + &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); + + /* Now return the GLchan data in the requested dstFormat */ + if (rDst >= 0) { + GLchan *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + CLAMPED_FLOAT_TO_CHAN(dst[rDst], rgba[i][RCOMP]); + dst += dstComponents; + } + } + + if (gDst >= 0) { + GLchan *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + CLAMPED_FLOAT_TO_CHAN(dst[gDst], rgba[i][GCOMP]); + dst += dstComponents; + } + } + + if (bDst >= 0) { + GLchan *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + CLAMPED_FLOAT_TO_CHAN(dst[bDst], rgba[i][BCOMP]); + dst += dstComponents; + } + } + + if (aDst >= 0) { + GLchan *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + CLAMPED_FLOAT_TO_CHAN(dst[aDst], rgba[i][ACOMP]); + dst += dstComponents; + } + } + + if (iDst >= 0) { + GLchan *dst = dest; + GLuint i; + assert(iDst == 0); + assert(dstComponents == 1); + for (i = 0; i < n; i++) { + /* Intensity comes from red channel */ + CLAMPED_FLOAT_TO_CHAN(dst[i], rgba[i][RCOMP]); + } + } + + if (lDst >= 0) { + GLchan *dst = dest; + GLuint i; + assert(lDst == 0); + for (i = 0; i < n; i++) { + /* Luminance comes from red channel */ + CLAMPED_FLOAT_TO_CHAN(dst[0], rgba[i][RCOMP]); + dst += dstComponents; + } + } + + free(rgba); + } +} + + +/** + * Same as _mesa_unpack_color_span_chan(), but return GLfloat data + * instead of GLchan. + */ +void +_mesa_unpack_color_span_float( struct gl_context *ctx, + GLuint n, GLenum dstFormat, GLfloat dest[], + GLenum srcFormat, GLenum srcType, + const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking, + GLbitfield transferOps ) +{ + ASSERT(dstFormat == GL_ALPHA || + dstFormat == GL_LUMINANCE || + dstFormat == GL_LUMINANCE_ALPHA || + dstFormat == GL_INTENSITY || + dstFormat == GL_RED || + dstFormat == GL_RG || + dstFormat == GL_RGB || + dstFormat == GL_RGBA || + dstFormat == GL_COLOR_INDEX); + + ASSERT(srcFormat == GL_RED || + srcFormat == GL_GREEN || + srcFormat == GL_BLUE || + srcFormat == GL_ALPHA || + srcFormat == GL_LUMINANCE || + srcFormat == GL_LUMINANCE_ALPHA || + srcFormat == GL_INTENSITY || + srcFormat == GL_RG || + srcFormat == GL_RGB || + srcFormat == GL_BGR || + srcFormat == GL_RGBA || + srcFormat == GL_BGRA || + srcFormat == GL_ABGR_EXT || + srcFormat == GL_RED_INTEGER_EXT || + srcFormat == GL_GREEN_INTEGER_EXT || + srcFormat == GL_BLUE_INTEGER_EXT || + srcFormat == GL_ALPHA_INTEGER_EXT || + srcFormat == GL_RGB_INTEGER_EXT || + srcFormat == GL_RGBA_INTEGER_EXT || + srcFormat == GL_BGR_INTEGER_EXT || + srcFormat == GL_BGRA_INTEGER_EXT || + srcFormat == GL_LUMINANCE_INTEGER_EXT || + srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT || + srcFormat == GL_COLOR_INDEX); + + ASSERT(srcType == GL_BITMAP || + srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT || + srcType == GL_UNSIGNED_BYTE_3_3_2 || + srcType == GL_UNSIGNED_BYTE_2_3_3_REV || + srcType == GL_UNSIGNED_SHORT_5_6_5 || + srcType == GL_UNSIGNED_SHORT_5_6_5_REV || + srcType == GL_UNSIGNED_SHORT_4_4_4_4 || + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || + srcType == GL_UNSIGNED_SHORT_5_5_5_1 || + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV || + srcType == GL_UNSIGNED_INT_10_10_10_2 || + srcType == GL_UNSIGNED_INT_2_10_10_10_REV || + srcType == GL_UNSIGNED_INT_5_9_9_9_REV || + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV); + + /* general solution, no special cases, yet */ + { + GLint dstComponents; + GLint rDst, gDst, bDst, aDst, lDst, iDst; + GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); + + if (!rgba) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + dstComponents = _mesa_components_in_format( dstFormat ); + /* source & dest image formats should have been error checked by now */ + assert(dstComponents > 0); + + /* + * Extract image data and convert to RGBA floats + */ + if (srcFormat == GL_COLOR_INDEX) { + GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); + + if (!indexes) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + free(rgba); + return; + } + + extract_uint_indexes(n, indexes, srcFormat, srcType, source, + srcPacking); + + if (dstFormat == GL_COLOR_INDEX) { + GLuint i; + _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); + /* convert to GLchan and return */ + for (i = 0; i < n; i++) { + dest[i] = (GLchan) (indexes[i] & 0xff); + } + free(indexes); + free(rgba); + return; + } + else { + /* Convert indexes to RGBA */ + if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { + _mesa_shift_and_offset_ci(ctx, n, indexes); + } + _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); + } + + /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting + * with color indexes. + */ + transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); + + free(indexes); + } + else { + /* non-color index data */ + extract_float_rgba(n, rgba, srcFormat, srcType, source, + srcPacking->SwapBytes); + } + + if (transferOps) { + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + } + + get_component_indexes(dstFormat, + &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); + + /* Now pack results in the requested dstFormat */ + if (rDst >= 0) { + GLfloat *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[rDst] = rgba[i][RCOMP]; + dst += dstComponents; + } + } + + if (gDst >= 0) { + GLfloat *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[gDst] = rgba[i][GCOMP]; + dst += dstComponents; + } + } + + if (bDst >= 0) { + GLfloat *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[bDst] = rgba[i][BCOMP]; + dst += dstComponents; + } + } + + if (aDst >= 0) { + GLfloat *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[aDst] = rgba[i][ACOMP]; + dst += dstComponents; + } + } + + if (iDst >= 0) { + GLfloat *dst = dest; + GLuint i; + assert(iDst == 0); + assert(dstComponents == 1); + for (i = 0; i < n; i++) { + /* Intensity comes from red channel */ + dst[i] = rgba[i][RCOMP]; + } + } + + if (lDst >= 0) { + GLfloat *dst = dest; + GLuint i; + assert(lDst == 0); + for (i = 0; i < n; i++) { + /* Luminance comes from red channel */ + dst[0] = rgba[i][RCOMP]; + dst += dstComponents; + } + } + + free(rgba); + } +} + + +/** + * Same as _mesa_unpack_color_span_chan(), but return GLuint data + * instead of GLchan. + * No pixel transfer ops are applied. + */ +void +_mesa_unpack_color_span_uint(struct gl_context *ctx, + GLuint n, GLenum dstFormat, GLuint *dest, + GLenum srcFormat, GLenum srcType, + const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking) +{ + GLuint (*rgba)[4] = (GLuint (*)[4]) malloc(n * 4 * sizeof(GLfloat)); + + if (!rgba) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + ASSERT(dstFormat == GL_ALPHA || + dstFormat == GL_LUMINANCE || + dstFormat == GL_LUMINANCE_ALPHA || + dstFormat == GL_INTENSITY || + dstFormat == GL_RED || + dstFormat == GL_RG || + dstFormat == GL_RGB || + dstFormat == GL_RGBA); + + ASSERT(srcFormat == GL_RED || + srcFormat == GL_GREEN || + srcFormat == GL_BLUE || + srcFormat == GL_ALPHA || + srcFormat == GL_LUMINANCE || + srcFormat == GL_LUMINANCE_ALPHA || + srcFormat == GL_INTENSITY || + srcFormat == GL_RG || + srcFormat == GL_RGB || + srcFormat == GL_BGR || + srcFormat == GL_RGBA || + srcFormat == GL_BGRA || + srcFormat == GL_ABGR_EXT || + srcFormat == GL_RED_INTEGER_EXT || + srcFormat == GL_GREEN_INTEGER_EXT || + srcFormat == GL_BLUE_INTEGER_EXT || + srcFormat == GL_ALPHA_INTEGER_EXT || + srcFormat == GL_RGB_INTEGER_EXT || + srcFormat == GL_RGBA_INTEGER_EXT || + srcFormat == GL_BGR_INTEGER_EXT || + srcFormat == GL_BGRA_INTEGER_EXT || + srcFormat == GL_LUMINANCE_INTEGER_EXT || + srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT); + + ASSERT(srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT || + srcType == GL_UNSIGNED_BYTE_3_3_2 || + srcType == GL_UNSIGNED_BYTE_2_3_3_REV || + srcType == GL_UNSIGNED_SHORT_5_6_5 || + srcType == GL_UNSIGNED_SHORT_5_6_5_REV || + srcType == GL_UNSIGNED_SHORT_4_4_4_4 || + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV || + srcType == GL_UNSIGNED_SHORT_5_5_5_1 || + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV || + srcType == GL_UNSIGNED_INT_10_10_10_2 || + srcType == GL_UNSIGNED_INT_2_10_10_10_REV || + srcType == GL_UNSIGNED_INT_5_9_9_9_REV || + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV); + + + /* Extract image data as uint[4] pixels */ + extract_uint_rgba(n, rgba, srcFormat, srcType, source, + srcPacking->SwapBytes); + + if (dstFormat == GL_RGBA) { + /* simple case */ + memcpy(dest, rgba, 4 * sizeof(GLuint) * n); + } + else { + /* general case */ + GLint rDst, gDst, bDst, aDst, lDst, iDst; + GLint dstComponents = _mesa_components_in_format( dstFormat ); + + assert(dstComponents > 0); + + get_component_indexes(dstFormat, + &rDst, &gDst, &bDst, &aDst, &lDst, &iDst); + + /* Now pack values in the requested dest format */ + if (rDst >= 0) { + GLuint *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[rDst] = rgba[i][RCOMP]; + dst += dstComponents; + } + } + + if (gDst >= 0) { + GLuint *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[gDst] = rgba[i][GCOMP]; + dst += dstComponents; + } + } + + if (bDst >= 0) { + GLuint *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[bDst] = rgba[i][BCOMP]; + dst += dstComponents; + } + } + + if (aDst >= 0) { + GLuint *dst = dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[aDst] = rgba[i][ACOMP]; + dst += dstComponents; + } + } + + if (iDst >= 0) { + GLuint *dst = dest; + GLuint i; + assert(iDst == 0); + assert(dstComponents == 1); + for (i = 0; i < n; i++) { + /* Intensity comes from red channel */ + dst[i] = rgba[i][RCOMP]; + } + } + + if (lDst >= 0) { + GLuint *dst = dest; + GLuint i; + assert(lDst == 0); + for (i = 0; i < n; i++) { + /* Luminance comes from red channel */ + dst[0] = rgba[i][RCOMP]; + dst += dstComponents; + } + } + } + + free(rgba); +} + + + +/** + * Similar to _mesa_unpack_color_span_float(), but for dudv data instead of rgba, + * directly return GLbyte data, no transfer ops apply. + */ +void +_mesa_unpack_dudv_span_byte( struct gl_context *ctx, + GLuint n, GLenum dstFormat, GLbyte dest[], + GLenum srcFormat, GLenum srcType, + const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking, + GLbitfield transferOps ) +{ + ASSERT(dstFormat == GL_DUDV_ATI); + ASSERT(srcFormat == GL_DUDV_ATI || + srcFormat == GL_DU8DV8_ATI); + + ASSERT(srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT); + + /* general solution */ + { + GLint dstComponents; + GLbyte *dst = dest; + GLuint i; + GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * n * sizeof(GLfloat)); + + if (!rgba) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + dstComponents = _mesa_components_in_format( dstFormat ); + /* source & dest image formats should have been error checked by now */ + assert(dstComponents > 0); + + /* + * Extract image data and convert to RGBA floats + */ + extract_float_rgba(n, rgba, srcFormat, srcType, source, + srcPacking->SwapBytes); + + + /* Now determine which color channels we need to produce. + * And determine the dest index (offset) within each color tuple. + */ + + /* Now pack results in the requested dstFormat */ + for (i = 0; i < n; i++) { + /* not sure - need clamp[-1,1] here? */ + dst[0] = FLOAT_TO_BYTE(rgba[i][RCOMP]); + dst[1] = FLOAT_TO_BYTE(rgba[i][GCOMP]); + dst += dstComponents; + } + + free(rgba); + } +} + +/* + * Unpack a row of color index data from a client buffer according to + * the pixel unpacking parameters. + * This is (or will be) used by glDrawPixels, glTexImage[123]D, etc. + * + * Args: ctx - the context + * n - number of pixels + * dstType - destination data type + * dest - destination array + * srcType - source pixel type + * source - source data pointer + * srcPacking - pixel unpacking parameters + * transferOps - the pixel transfer operations to apply + */ +void +_mesa_unpack_index_span( struct gl_context *ctx, GLuint n, + GLenum dstType, GLvoid *dest, + GLenum srcType, const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking, + GLbitfield transferOps ) +{ + ASSERT(srcType == GL_BITMAP || + srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT); + + ASSERT(dstType == GL_UNSIGNED_BYTE || + dstType == GL_UNSIGNED_SHORT || + dstType == GL_UNSIGNED_INT); + + + transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT); + + /* + * Try simple cases first + */ + if (transferOps == 0 && srcType == GL_UNSIGNED_BYTE + && dstType == GL_UNSIGNED_BYTE) { + memcpy(dest, source, n * sizeof(GLubyte)); + } + else if (transferOps == 0 && srcType == GL_UNSIGNED_INT + && dstType == GL_UNSIGNED_INT && !srcPacking->SwapBytes) { + memcpy(dest, source, n * sizeof(GLuint)); + } + else { + /* + * general solution + */ + GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); + + if (!indexes) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source, + srcPacking); + + if (transferOps) + _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); + + /* convert to dest type */ + switch (dstType) { + case GL_UNSIGNED_BYTE: + { + GLubyte *dst = (GLubyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLubyte) (indexes[i] & 0xff); + } + } + break; + case GL_UNSIGNED_SHORT: + { + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLushort) (indexes[i] & 0xffff); + } + } + break; + case GL_UNSIGNED_INT: + memcpy(dest, indexes, n * sizeof(GLuint)); + break; + default: + _mesa_problem(ctx, "bad dstType in _mesa_unpack_index_span"); + } + + free(indexes); + } +} + + +void +_mesa_pack_index_span( struct gl_context *ctx, GLuint n, + GLenum dstType, GLvoid *dest, const GLuint *source, + const struct gl_pixelstore_attrib *dstPacking, + GLbitfield transferOps ) +{ + GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); + + if (!indexes) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); + return; + } + + transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT); + + if (transferOps & (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT)) { + /* make a copy of input */ + memcpy(indexes, source, n * sizeof(GLuint)); + _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes); + source = indexes; + } + + switch (dstType) { + case GL_UNSIGNED_BYTE: + { + GLubyte *dst = (GLubyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + *dst++ = (GLubyte) source[i]; + } + } + break; + case GL_BYTE: + { + GLbyte *dst = (GLbyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLbyte) source[i]; + } + } + break; + case GL_UNSIGNED_SHORT: + { + GLushort *dst = (GLushort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLushort) source[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_SHORT: + { + GLshort *dst = (GLshort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLshort) source[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_UNSIGNED_INT: + { + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLuint) source[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_INT: + { + GLint *dst = (GLint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLint) source[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_FLOAT: + { + GLfloat *dst = (GLfloat *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLfloat) source[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_HALF_FLOAT_ARB: + { + GLhalfARB *dst = (GLhalfARB *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = _mesa_float_to_half((GLfloat) source[i]); + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + default: + _mesa_problem(ctx, "bad type in _mesa_pack_index_span"); + } + + free(indexes); +} + + +/* + * Unpack a row of stencil data from a client buffer according to + * the pixel unpacking parameters. + * This is (or will be) used by glDrawPixels + * + * Args: ctx - the context + * n - number of pixels + * dstType - destination data type + * dest - destination array + * srcType - source pixel type + * source - source data pointer + * srcPacking - pixel unpacking parameters + * transferOps - apply offset/bias/lookup ops? + */ +void +_mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n, + GLenum dstType, GLvoid *dest, + GLenum srcType, const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking, + GLbitfield transferOps ) +{ + ASSERT(srcType == GL_BITMAP || + srcType == GL_UNSIGNED_BYTE || + srcType == GL_BYTE || + srcType == GL_UNSIGNED_SHORT || + srcType == GL_SHORT || + srcType == GL_UNSIGNED_INT || + srcType == GL_INT || + srcType == GL_UNSIGNED_INT_24_8_EXT || + srcType == GL_HALF_FLOAT_ARB || + srcType == GL_FLOAT); + + ASSERT(dstType == GL_UNSIGNED_BYTE || + dstType == GL_UNSIGNED_SHORT || + dstType == GL_UNSIGNED_INT); + + /* only shift and offset apply to stencil */ + transferOps &= IMAGE_SHIFT_OFFSET_BIT; + + /* + * Try simple cases first + */ + if (transferOps == 0 && + !ctx->Pixel.MapStencilFlag && + srcType == GL_UNSIGNED_BYTE && + dstType == GL_UNSIGNED_BYTE) { + memcpy(dest, source, n * sizeof(GLubyte)); + } + else if (transferOps == 0 && + !ctx->Pixel.MapStencilFlag && + srcType == GL_UNSIGNED_INT && + dstType == GL_UNSIGNED_INT && + !srcPacking->SwapBytes) { + memcpy(dest, source, n * sizeof(GLuint)); + } + else { + /* + * general solution + */ + GLuint *indexes = (GLuint *) malloc(n * sizeof(GLuint)); + + if (!indexes) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil unpacking"); + return; + } + + extract_uint_indexes(n, indexes, GL_STENCIL_INDEX, srcType, source, + srcPacking); + + if (transferOps & IMAGE_SHIFT_OFFSET_BIT) { + /* shift and offset indexes */ + _mesa_shift_and_offset_ci(ctx, n, indexes); + } + + if (ctx->Pixel.MapStencilFlag) { + /* Apply stencil lookup table */ + const GLuint mask = ctx->PixelMaps.StoS.Size - 1; + GLuint i; + for (i = 0; i < n; i++) { + indexes[i] = (GLuint)ctx->PixelMaps.StoS.Map[ indexes[i] & mask ]; + } + } + + /* convert to dest type */ + switch (dstType) { + case GL_UNSIGNED_BYTE: + { + GLubyte *dst = (GLubyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLubyte) (indexes[i] & 0xff); + } + } + break; + case GL_UNSIGNED_SHORT: + { + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = (GLushort) (indexes[i] & 0xffff); + } + } + break; + case GL_UNSIGNED_INT: + memcpy(dest, indexes, n * sizeof(GLuint)); + break; + default: + _mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span"); + } + + free(indexes); + } +} + + +void +_mesa_pack_stencil_span( struct gl_context *ctx, GLuint n, + GLenum dstType, GLvoid *dest, const GLstencil *source, + const struct gl_pixelstore_attrib *dstPacking ) +{ + GLstencil *stencil = (GLstencil *) malloc(n * sizeof(GLstencil)); + + if (!stencil) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil packing"); + return; + } + + if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset || + ctx->Pixel.MapStencilFlag) { + /* make a copy of input */ + memcpy(stencil, source, n * sizeof(GLstencil)); + _mesa_apply_stencil_transfer_ops(ctx, n, stencil); + source = stencil; + } + + switch (dstType) { + case GL_UNSIGNED_BYTE: + if (sizeof(GLstencil) == 1) { + memcpy( dest, source, n ); + } + else { + GLubyte *dst = (GLubyte *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_SHORT: + { + GLshort *dst = (GLshort *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_UNSIGNED_INT: + { + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_INT: + { + GLint *dst = (GLint *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_FLOAT: + { + GLfloat *dst = (GLfloat *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_HALF_FLOAT_ARB: + { + GLhalfARB *dst = (GLhalfARB *) dest; + GLuint i; + for (i=0;iSwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_BITMAP: + if (dstPacking->LsbFirst) { + GLubyte *dst = (GLubyte *) dest; + GLint shift = 0; + GLuint i; + for (i = 0; i < n; i++) { + if (shift == 0) + *dst = 0; + *dst |= ((source[i] != 0) << shift); + shift++; + if (shift == 8) { + shift = 0; + dst++; + } + } + } + else { + GLubyte *dst = (GLubyte *) dest; + GLint shift = 7; + GLuint i; + for (i = 0; i < n; i++) { + if (shift == 7) + *dst = 0; + *dst |= ((source[i] != 0) << shift); + shift--; + if (shift < 0) { + shift = 7; + dst++; + } + } + } + break; + default: + _mesa_problem(ctx, "bad type in _mesa_pack_index_span"); + } + + free(stencil); +} + +#define DEPTH_VALUES(GLTYPE, GLTYPE2FLOAT) \ + do { \ + GLuint i; \ + const GLTYPE *src = (const GLTYPE *)source; \ + for (i = 0; i < n; i++) { \ + GLTYPE value = src[i]; \ + if (srcPacking->SwapBytes) { \ + if (sizeof(GLTYPE) == 2) { \ + SWAP2BYTE(value); \ + } else if (sizeof(GLTYPE) == 4) { \ + SWAP4BYTE(value); \ + } \ + } \ + depthValues[i] = GLTYPE2FLOAT(value); \ + } \ + } while (0) + + +/** + * Unpack a row of depth/z values from memory, returning GLushort, GLuint + * or GLfloat values. + * The glPixelTransfer (scale/bias) params will be applied. + * + * \param dstType one of GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, GL_FLOAT + * \param depthMax max value for returned GLushort or GLuint values + * (ignored for GLfloat). + */ +void +_mesa_unpack_depth_span( struct gl_context *ctx, GLuint n, + GLenum dstType, GLvoid *dest, GLuint depthMax, + GLenum srcType, const GLvoid *source, + const struct gl_pixelstore_attrib *srcPacking ) +{ + GLfloat *depthTemp, *depthValues; + GLboolean needClamp = GL_FALSE; + + /* Look for special cases first. + * Not only are these faster, they're less prone to numeric conversion + * problems. Otherwise, converting from an int type to a float then + * back to an int type can introduce errors that will show up as + * artifacts in things like depth peeling which uses glCopyTexImage. + */ + if (ctx->Pixel.DepthScale == 1.0 && ctx->Pixel.DepthBias == 0.0) { + if (srcType == GL_UNSIGNED_INT && dstType == GL_UNSIGNED_SHORT) { + const GLuint *src = (const GLuint *) source; + GLushort *dst = (GLushort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = src[i] >> 16; + } + return; + } + if (srcType == GL_UNSIGNED_SHORT + && dstType == GL_UNSIGNED_INT + && depthMax == 0xffffffff) { + const GLushort *src = (const GLushort *) source; + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = src[i] | (src[i] << 16); + } + return; + } + if (srcType == GL_UNSIGNED_INT_24_8 + && dstType == GL_UNSIGNED_INT + && depthMax == 0xffffff) { + const GLuint *src = (const GLuint *) source; + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = src[i] >> 8; + } + return; + } + /* XXX may want to add additional cases here someday */ + } + + /* general case path follows */ + + depthTemp = (GLfloat *) malloc(n * sizeof(GLfloat)); + if (!depthTemp) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking"); + return; + } + + if (dstType == GL_FLOAT) { + depthValues = (GLfloat *) dest; + } + else { + depthValues = depthTemp; + } + + /* Convert incoming values to GLfloat. Some conversions will require + * clamping, below. + */ + switch (srcType) { + case GL_BYTE: + DEPTH_VALUES(GLbyte, BYTE_TO_FLOAT); + needClamp = GL_TRUE; + break; + case GL_UNSIGNED_BYTE: + DEPTH_VALUES(GLubyte, UBYTE_TO_FLOAT); + break; + case GL_SHORT: + DEPTH_VALUES(GLshort, SHORT_TO_FLOAT); + needClamp = GL_TRUE; + break; + case GL_UNSIGNED_SHORT: + DEPTH_VALUES(GLushort, USHORT_TO_FLOAT); + break; + case GL_INT: + DEPTH_VALUES(GLint, INT_TO_FLOAT); + needClamp = GL_TRUE; + break; + case GL_UNSIGNED_INT: + DEPTH_VALUES(GLuint, UINT_TO_FLOAT); + break; + case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */ + if (dstType == GL_UNSIGNED_INT_24_8_EXT && + depthMax == 0xffffff && + ctx->Pixel.DepthScale == 1.0 && + ctx->Pixel.DepthBias == 0.0) { + const GLuint *src = (const GLuint *) source; + GLuint *zValues = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + GLuint value = src[i]; + if (srcPacking->SwapBytes) { + SWAP4BYTE(value); + } + zValues[i] = value & 0xffffff00; + } + return; + } + else { + const GLuint *src = (const GLuint *) source; + const GLfloat scale = 1.0f / 0xffffff; + GLuint i; + for (i = 0; i < n; i++) { + GLuint value = src[i]; + if (srcPacking->SwapBytes) { + SWAP4BYTE(value); + } + depthValues[i] = (value >> 8) * scale; + } + } + break; + case GL_FLOAT: + DEPTH_VALUES(GLfloat, 1*); + needClamp = GL_TRUE; + break; + case GL_HALF_FLOAT_ARB: + { + GLuint i; + const GLhalfARB *src = (const GLhalfARB *) source; + for (i = 0; i < n; i++) { + GLhalfARB value = src[i]; + if (srcPacking->SwapBytes) { + SWAP2BYTE(value); + } + depthValues[i] = _mesa_half_to_float(value); + } + needClamp = GL_TRUE; + } + break; + default: + _mesa_problem(NULL, "bad type in _mesa_unpack_depth_span()"); + free(depthTemp); + return; + } + + /* apply depth scale and bias */ + { + const GLfloat scale = ctx->Pixel.DepthScale; + const GLfloat bias = ctx->Pixel.DepthBias; + if (scale != 1.0 || bias != 0.0) { + GLuint i; + for (i = 0; i < n; i++) { + depthValues[i] = depthValues[i] * scale + bias; + } + needClamp = GL_TRUE; + } + } + + /* clamp to [0, 1] */ + if (needClamp) { + GLuint i; + for (i = 0; i < n; i++) { + depthValues[i] = (GLfloat)CLAMP(depthValues[i], 0.0, 1.0); + } + } + + /* + * Convert values to dstType + */ + if (dstType == GL_UNSIGNED_INT) { + GLuint *zValues = (GLuint *) dest; + GLuint i; + if (depthMax <= 0xffffff) { + /* no overflow worries */ + for (i = 0; i < n; i++) { + zValues[i] = (GLuint) (depthValues[i] * (GLfloat) depthMax); + } + } + else { + /* need to use double precision to prevent overflow problems */ + for (i = 0; i < n; i++) { + GLdouble z = depthValues[i] * (GLfloat) depthMax; + if (z >= (GLdouble) 0xffffffff) + zValues[i] = 0xffffffff; + else + zValues[i] = (GLuint) z; + } + } + } + else if (dstType == GL_UNSIGNED_SHORT) { + GLushort *zValues = (GLushort *) dest; + GLuint i; + ASSERT(depthMax <= 0xffff); + for (i = 0; i < n; i++) { + zValues[i] = (GLushort) (depthValues[i] * (GLfloat) depthMax); + } + } + else { + ASSERT(dstType == GL_FLOAT); + /*ASSERT(depthMax == 1.0F);*/ + } + + free(depthTemp); +} + + +/* + * Pack an array of depth values. The values are floats in [0,1]. + */ +void +_mesa_pack_depth_span( struct gl_context *ctx, GLuint n, GLvoid *dest, + GLenum dstType, const GLfloat *depthSpan, + const struct gl_pixelstore_attrib *dstPacking ) +{ + GLfloat *depthCopy = (GLfloat *) malloc(n * sizeof(GLfloat)); + if (!depthCopy) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); + return; + } + + if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { + memcpy(depthCopy, depthSpan, n * sizeof(GLfloat)); + _mesa_scale_and_bias_depth(ctx, n, depthCopy); + depthSpan = depthCopy; + } + + switch (dstType) { + case GL_UNSIGNED_BYTE: + { + GLubyte *dst = (GLubyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = FLOAT_TO_UBYTE( depthSpan[i] ); + } + } + break; + case GL_BYTE: + { + GLbyte *dst = (GLbyte *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = FLOAT_TO_BYTE( depthSpan[i] ); + } + } + break; + case GL_UNSIGNED_SHORT: + { + GLushort *dst = (GLushort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + CLAMPED_FLOAT_TO_USHORT(dst[i], depthSpan[i]); + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_SHORT: + { + GLshort *dst = (GLshort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = FLOAT_TO_SHORT( depthSpan[i] ); + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + case GL_UNSIGNED_INT: + { + GLuint *dst = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = FLOAT_TO_UINT( depthSpan[i] ); + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_INT: + { + GLint *dst = (GLint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = FLOAT_TO_INT( depthSpan[i] ); + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_FLOAT: + { + GLfloat *dst = (GLfloat *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = depthSpan[i]; + } + if (dstPacking->SwapBytes) { + _mesa_swap4( (GLuint *) dst, n ); + } + } + break; + case GL_HALF_FLOAT_ARB: + { + GLhalfARB *dst = (GLhalfARB *) dest; + GLuint i; + for (i = 0; i < n; i++) { + dst[i] = _mesa_float_to_half(depthSpan[i]); + } + if (dstPacking->SwapBytes) { + _mesa_swap2( (GLushort *) dst, n ); + } + } + break; + default: + _mesa_problem(ctx, "bad type in _mesa_pack_depth_span"); + } + + free(depthCopy); +} + + + +/** + * Pack depth and stencil values as GL_DEPTH_STENCIL/GL_UNSIGNED_INT_24_8. + */ +void +_mesa_pack_depth_stencil_span(struct gl_context *ctx, GLuint n, GLuint *dest, + const GLfloat *depthVals, + const GLstencil *stencilVals, + const struct gl_pixelstore_attrib *dstPacking) +{ + GLfloat *depthCopy = (GLfloat *) malloc(n * sizeof(GLfloat)); + GLstencil *stencilCopy = (GLstencil *) malloc(n * sizeof(GLstencil)); + GLuint i; + + if (!depthCopy || !stencilCopy) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing"); + free(depthCopy); + free(stencilCopy); + return; + } + + if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { + memcpy(depthCopy, depthVals, n * sizeof(GLfloat)); + _mesa_scale_and_bias_depth(ctx, n, depthCopy); + depthVals = depthCopy; + } + + if (ctx->Pixel.IndexShift || + ctx->Pixel.IndexOffset || + ctx->Pixel.MapStencilFlag) { + memcpy(stencilCopy, stencilVals, n * sizeof(GLstencil)); + _mesa_apply_stencil_transfer_ops(ctx, n, stencilCopy); + stencilVals = stencilCopy; + } + + for (i = 0; i < n; i++) { + GLuint z = (GLuint) (depthVals[i] * 0xffffff); + dest[i] = (z << 8) | (stencilVals[i] & 0xff); + } + + if (dstPacking->SwapBytes) { + _mesa_swap4(dest, n); + } + + free(depthCopy); + free(stencilCopy); +} + + + + +/** + * Unpack image data. Apply byte swapping, byte flipping (bitmap). + * Return all image data in a contiguous block. This is used when we + * compile glDrawPixels, glTexImage, etc into a display list. We + * need a copy of the data in a standard format. + */ +void * +_mesa_unpack_image( GLuint dimensions, + GLsizei width, GLsizei height, GLsizei depth, + GLenum format, GLenum type, const GLvoid *pixels, + const struct gl_pixelstore_attrib *unpack ) +{ + GLint bytesPerRow, compsPerRow; + GLboolean flipBytes, swap2, swap4; + + if (!pixels) + return NULL; /* not necessarily an error */ + + if (width <= 0 || height <= 0 || depth <= 0) + return NULL; /* generate error later */ + + if (type == GL_BITMAP) { + bytesPerRow = (width + 7) >> 3; + flipBytes = unpack->LsbFirst; + swap2 = swap4 = GL_FALSE; + compsPerRow = 0; + } + else { + const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type); + GLint components = _mesa_components_in_format(format); + GLint bytesPerComp; + + if (_mesa_type_is_packed(type)) + components = 1; + + if (bytesPerPixel <= 0 || components <= 0) + return NULL; /* bad format or type. generate error later */ + bytesPerRow = bytesPerPixel * width; + bytesPerComp = bytesPerPixel / components; + flipBytes = GL_FALSE; + swap2 = (bytesPerComp == 2) && unpack->SwapBytes; + swap4 = (bytesPerComp == 4) && unpack->SwapBytes; + compsPerRow = components * width; + assert(compsPerRow >= width); + } + + { + GLubyte *destBuffer + = (GLubyte *) malloc(bytesPerRow * height * depth); + GLubyte *dst; + GLint img, row; + if (!destBuffer) + return NULL; /* generate GL_OUT_OF_MEMORY later */ + + dst = destBuffer; + for (img = 0; img < depth; img++) { + for (row = 0; row < height; row++) { + const GLvoid *src = _mesa_image_address(dimensions, unpack, pixels, + width, height, format, type, img, row, 0); + + if ((type == GL_BITMAP) && (unpack->SkipPixels & 0x7)) { + GLint i; + flipBytes = GL_FALSE; + if (unpack->LsbFirst) { + GLubyte srcMask = 1 << (unpack->SkipPixels & 0x7); + GLubyte dstMask = 128; + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 128) { + srcMask = 1; + s++; + } + else { + srcMask = srcMask << 1; + } + if (dstMask == 1) { + dstMask = 128; + d++; + *d = 0; + } + else { + dstMask = dstMask >> 1; + } + } + } + else { + GLubyte srcMask = 128 >> (unpack->SkipPixels & 0x7); + GLubyte dstMask = 128; + const GLubyte *s = src; + GLubyte *d = dst; + *d = 0; + for (i = 0; i < width; i++) { + if (*s & srcMask) { + *d |= dstMask; + } + if (srcMask == 1) { + srcMask = 128; + s++; + } + else { + srcMask = srcMask >> 1; + } + if (dstMask == 1) { + dstMask = 128; + d++; + *d = 0; + } + else { + dstMask = dstMask >> 1; + } + } + } + } + else { + memcpy(dst, src, bytesPerRow); + } + + /* byte flipping/swapping */ + if (flipBytes) { + flip_bytes((GLubyte *) dst, bytesPerRow); + } + else if (swap2) { + _mesa_swap2((GLushort*) dst, compsPerRow); + } + else if (swap4) { + _mesa_swap4((GLuint*) dst, compsPerRow); + } + dst += bytesPerRow; + } + } + return destBuffer; + } +} + diff --git a/mesalib/src/mesa/main/texfetch.c b/mesalib/src/mesa/main/texfetch.c index d091789ff..ab3abf657 100644 --- a/mesalib/src/mesa/main/texfetch.c +++ b/mesalib/src/mesa/main/texfetch.c @@ -1,1034 +1,1050 @@ -/* - * 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 - }, - { - MESA_FORMAT_R_FLOAT32, - fetch_texel_1d_f_r_f32, - fetch_texel_2d_f_r_f32, - fetch_texel_3d_f_r_f32, - store_texel_r_f32 - }, - { - MESA_FORMAT_R_FLOAT16, - fetch_texel_1d_f_r_f16, - fetch_texel_2d_f_r_f16, - fetch_texel_3d_f_r_f16, - store_texel_r_f16 - }, - { - MESA_FORMAT_RG_FLOAT32, - fetch_texel_1d_f_rg_f32, - fetch_texel_2d_f_rg_f32, - fetch_texel_3d_f_rg_f32, - store_texel_rg_f32 - }, - { - MESA_FORMAT_RG_FLOAT16, - fetch_texel_1d_f_rg_f16, - fetch_texel_2d_f_rg_f16, - fetch_texel_3d_f_rg_f16, - store_texel_rg_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_REV, - fetch_texel_1d_signed_rg88_rev, - fetch_texel_2d_signed_rg88_rev, - fetch_texel_3d_signed_rg88_rev, - store_texel_signed_rg88_rev - }, - { - 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_R16, - fetch_texel_1d_signed_r16, - fetch_texel_2d_signed_r16, - fetch_texel_3d_signed_r16, - store_texel_signed_r16 - }, - { - MESA_FORMAT_SIGNED_GR1616, - fetch_texel_1d_signed_rg1616, - fetch_texel_2d_signed_rg1616, - fetch_texel_3d_signed_rg1616, - store_texel_signed_rg1616 - }, - { - 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 - }, - { - MESA_FORMAT_SIGNED_A8, - fetch_texel_1d_signed_a8, - fetch_texel_2d_signed_a8, - fetch_texel_3d_signed_a8, - store_texel_signed_a8 - }, - { - MESA_FORMAT_SIGNED_L8, - fetch_texel_1d_signed_l8, - fetch_texel_2d_signed_l8, - fetch_texel_3d_signed_l8, - store_texel_signed_l8 - }, - { - MESA_FORMAT_SIGNED_AL88, - fetch_texel_1d_signed_al88, - fetch_texel_2d_signed_al88, - fetch_texel_3d_signed_al88, - store_texel_signed_al88 - }, - { - MESA_FORMAT_SIGNED_I8, - fetch_texel_1d_signed_i8, - fetch_texel_2d_signed_i8, - fetch_texel_3d_signed_i8, - store_texel_signed_i8 - }, - { - MESA_FORMAT_SIGNED_A16, - fetch_texel_1d_signed_a16, - fetch_texel_2d_signed_a16, - fetch_texel_3d_signed_a16, - store_texel_signed_a16 - }, - { - MESA_FORMAT_SIGNED_L16, - fetch_texel_1d_signed_l16, - fetch_texel_2d_signed_l16, - fetch_texel_3d_signed_l16, - store_texel_signed_l16 - }, - { - MESA_FORMAT_SIGNED_AL1616, - fetch_texel_1d_signed_al1616, - fetch_texel_2d_signed_al1616, - fetch_texel_3d_signed_al1616, - store_texel_signed_al1616 - }, - { - MESA_FORMAT_SIGNED_I16, - fetch_texel_1d_signed_i16, - fetch_texel_2d_signed_i16, - fetch_texel_3d_signed_i16, - store_texel_signed_i16 - }, -}; - - -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->Sampler.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" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_r11g11b10f.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 + }, + { + MESA_FORMAT_R_FLOAT32, + fetch_texel_1d_f_r_f32, + fetch_texel_2d_f_r_f32, + fetch_texel_3d_f_r_f32, + store_texel_r_f32 + }, + { + MESA_FORMAT_R_FLOAT16, + fetch_texel_1d_f_r_f16, + fetch_texel_2d_f_r_f16, + fetch_texel_3d_f_r_f16, + store_texel_r_f16 + }, + { + MESA_FORMAT_RG_FLOAT32, + fetch_texel_1d_f_rg_f32, + fetch_texel_2d_f_rg_f32, + fetch_texel_3d_f_rg_f32, + store_texel_rg_f32 + }, + { + MESA_FORMAT_RG_FLOAT16, + fetch_texel_1d_f_rg_f16, + fetch_texel_2d_f_rg_f16, + fetch_texel_3d_f_rg_f16, + store_texel_rg_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_REV, + fetch_texel_1d_signed_rg88_rev, + fetch_texel_2d_signed_rg88_rev, + fetch_texel_3d_signed_rg88_rev, + store_texel_signed_rg88_rev + }, + { + 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_R16, + fetch_texel_1d_signed_r16, + fetch_texel_2d_signed_r16, + fetch_texel_3d_signed_r16, + store_texel_signed_r16 + }, + { + MESA_FORMAT_SIGNED_GR1616, + fetch_texel_1d_signed_rg1616, + fetch_texel_2d_signed_rg1616, + fetch_texel_3d_signed_rg1616, + store_texel_signed_rg1616 + }, + { + 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 + }, + { + MESA_FORMAT_SIGNED_A8, + fetch_texel_1d_signed_a8, + fetch_texel_2d_signed_a8, + fetch_texel_3d_signed_a8, + store_texel_signed_a8 + }, + { + MESA_FORMAT_SIGNED_L8, + fetch_texel_1d_signed_l8, + fetch_texel_2d_signed_l8, + fetch_texel_3d_signed_l8, + store_texel_signed_l8 + }, + { + MESA_FORMAT_SIGNED_AL88, + fetch_texel_1d_signed_al88, + fetch_texel_2d_signed_al88, + fetch_texel_3d_signed_al88, + store_texel_signed_al88 + }, + { + MESA_FORMAT_SIGNED_I8, + fetch_texel_1d_signed_i8, + fetch_texel_2d_signed_i8, + fetch_texel_3d_signed_i8, + store_texel_signed_i8 + }, + { + MESA_FORMAT_SIGNED_A16, + fetch_texel_1d_signed_a16, + fetch_texel_2d_signed_a16, + fetch_texel_3d_signed_a16, + store_texel_signed_a16 + }, + { + MESA_FORMAT_SIGNED_L16, + fetch_texel_1d_signed_l16, + fetch_texel_2d_signed_l16, + fetch_texel_3d_signed_l16, + store_texel_signed_l16 + }, + { + MESA_FORMAT_SIGNED_AL1616, + fetch_texel_1d_signed_al1616, + fetch_texel_2d_signed_al1616, + fetch_texel_3d_signed_al1616, + store_texel_signed_al1616 + }, + { + MESA_FORMAT_SIGNED_I16, + fetch_texel_1d_signed_i16, + fetch_texel_2d_signed_i16, + fetch_texel_3d_signed_i16, + store_texel_signed_i16 + }, + { + MESA_FORMAT_RGB9_E5_FLOAT, + fetch_texel_1d_rgb9_e5, + fetch_texel_2d_rgb9_e5, + fetch_texel_3d_rgb9_e5, + store_texel_rgb9_e5 + }, + { + MESA_FORMAT_R11_G11_B10_FLOAT, + fetch_texel_1d_r11_g11_b10f, + fetch_texel_2d_r11_g11_b10f, + fetch_texel_3d_r11_g11_b10f, + store_texel_r11_g11_b10f + } +}; + + +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->Sampler.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/texfetch_tmp.h b/mesalib/src/mesa/main/texfetch_tmp.h index 0b9d5da07..278becc11 100644 --- a/mesalib/src/mesa/main/texfetch_tmp.h +++ b/mesalib/src/mesa/main/texfetch_tmp.h @@ -1,2337 +1,2379 @@ -/* - * 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 texfetch_tmp.h - * Texel fetch functions template. - * - * This template file is used by texfetch.c to generate texel fetch functions - * for 1-D, 2-D and 3-D texture images. - * - * It should be expanded by defining \p DIM as the number texture dimensions - * (1, 2 or 3). According to the value of \p DIM a series of macros is defined - * for the texel lookup in the gl_texture_image::Data. - * - * \author Gareth Hughes - * \author Brian Paul - */ - - -#if DIM == 1 - -#define TEXEL_ADDR( type, image, i, j, k, size ) \ - ((void) (j), (void) (k), ((type *)(image)->Data + (i) * (size))) - -#define FETCH(x) fetch_texel_1d_##x - -#elif DIM == 2 - -#define TEXEL_ADDR( type, image, i, j, k, size ) \ - ((void) (k), \ - ((type *)(image)->Data + ((image)->RowStride * (j) + (i)) * (size))) - -#define FETCH(x) fetch_texel_2d_##x - -#elif DIM == 3 - -#define TEXEL_ADDR( type, image, i, j, k, size ) \ - ((type *)(image)->Data + ((image)->ImageOffsets[k] \ - + (image)->RowStride * (j) + (i)) * (size)) - -#define FETCH(x) fetch_texel_3d_##x - -#else -#error illegal number of texture dimensions -#endif - - -/* MESA_FORMAT_Z32 ***********************************************************/ - -/* Fetch depth texel from 1D, 2D or 3D 32-bit depth texture, - * returning 1 GLfloat. - * Note: no GLchan version of this function. - */ -static void FETCH(f_z32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[0] = src[0] * (1.0F / 0xffffffff); -} - -#if DIM == 3 -static void store_texel_z32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLuint *depth = (const GLuint *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - dst[0] = *depth; -} -#endif - - -/* MESA_FORMAT_Z16 ***********************************************************/ - -/* Fetch depth texel from 1D, 2D or 3D 16-bit depth texture, - * returning 1 GLfloat. - * Note: no GLchan version of this function. - */ -static void FETCH(f_z16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[0] = src[0] * (1.0F / 65535.0F); -} - -#if DIM == 3 -static void store_texel_z16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *depth = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - dst[0] = *depth; -} -#endif - - -/* MESA_FORMAT_RGBA_F32 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats. - */ -static void FETCH(f_rgba_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = src[2]; - texel[ACOMP] = src[3]; -} - -#if DIM == 3 -static void store_texel_rgba_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); - dst[0] = depth[RCOMP]; - dst[1] = depth[GCOMP]; - dst[2] = depth[BCOMP]; - dst[3] = depth[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_F16 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgba_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = _mesa_half_to_float(src[1]); - texel[BCOMP] = _mesa_half_to_float(src[2]); - texel[ACOMP] = _mesa_half_to_float(src[3]); -} - -#if DIM == 3 -static void store_texel_rgba_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *src = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); - dst[0] = _mesa_float_to_half(src[RCOMP]); - dst[1] = _mesa_float_to_half(src[GCOMP]); - dst[2] = _mesa_float_to_half(src[BCOMP]); - dst[3] = _mesa_float_to_half(src[ACOMP]); -} -#endif - -/* MESA_FORMAT_RGB_F32 *******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgb_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = src[2]; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *src = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); - dst[0] = src[RCOMP]; - dst[1] = src[GCOMP]; - dst[2] = src[BCOMP]; -} -#endif - - -/* MESA_FORMAT_RGB_F16 *******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgb_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = _mesa_half_to_float(src[1]); - texel[BCOMP] = _mesa_half_to_float(src[2]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *src = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); - dst[0] = _mesa_float_to_half(src[RCOMP]); - dst[1] = _mesa_float_to_half(src[GCOMP]); - dst[2] = _mesa_float_to_half(src[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ALPHA_F32 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = src[0]; -} - -#if DIM == 3 -static void store_texel_alpha_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - dst[0] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_ALPHA_F32 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = _mesa_half_to_float(src[0]); -} - -#if DIM == 3 -static void store_texel_alpha_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_LUMINANCE_F32 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = src[0]; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_luminance_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_LUMINANCE_F16 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = _mesa_half_to_float(src[0]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_luminance_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = src[0]; - texel[ACOMP] = src[1]; -} - -#if DIM == 3 -static void store_texel_luminance_alpha_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = _mesa_half_to_float(src[0]); - texel[ACOMP] = _mesa_half_to_float(src[1]); -} - -#if DIM == 3 -static void store_texel_luminance_alpha_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); - dst[1] = _mesa_float_to_half(rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_INTENSITY_F32 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_intensity_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = src[0]; -} - -#if DIM == 3 -static void store_texel_intensity_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_INTENSITY_F16 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_intensity_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = _mesa_half_to_float(src[0]); -} - -#if DIM == 3 -static void store_texel_intensity_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_R_FLOAT32 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D R_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_r_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - texel[RCOMP] = src[0]; - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_r_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_R_FLOAT16 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D R_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_r_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_r_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_RG_FLOAT32 ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D RG_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rg_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rg_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; -} -#endif - - -/* MESA_FORMAT_RG_FLOAT16 ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D RG_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rg_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = _mesa_half_to_float(src[1]); - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rg_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); - dst[1] = _mesa_float_to_half(rgba[GCOMP]); -} -#endif - - -/* - * Begin Hardware formats - */ - -/* MESA_FORMAT_RGBA8888 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */ -static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); -} - - - -#if DIM == 3 -static void store_texel_rgba8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_RGBA888_REV ***************************************************/ - -/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */ -static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); -} - -#if DIM == 3 -static void store_texel_rgba8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB8888 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */ -static void FETCH(f_argb8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); -} - -#if DIM == 3 -static void store_texel_argb8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB8888_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */ -static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); -} - -#if DIM == 3 -static void store_texel_argb8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_XRGB8888 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D xrgb8888 texture, return 4 GLchans */ -static void FETCH(f_xrgb8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); - texel[ACOMP] = 1.0f; -} - -#if DIM == 3 -static void store_texel_xrgb8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(0xff, rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_XRGB8888_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D xrgb8888_rev texture, return 4 GLfloats */ -static void FETCH(f_xrgb8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); - texel[ACOMP] = 1.0f; -} - -#if DIM == 3 -static void store_texel_xrgb8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], 0xff); -} -#endif - - -/* MESA_FORMAT_RGB888 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */ -static void FETCH(f_rgb888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - texel[RCOMP] = UBYTE_TO_FLOAT( src[2] ); - texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); - texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - dst[0] = rgba[BCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_BGR888 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */ -static void FETCH(f_bgr888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - texel[RCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); - texel[BCOMP] = UBYTE_TO_FLOAT( src[2] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_bgr888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; -} -#endif - - -/* use color expansion like (g << 2) | (g >> 4) (does somewhat random rounding) - instead of slow (g << 2) * 255 / 252 (always rounds down) */ - -/* MESA_FORMAT_RGB565 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */ -static void FETCH(f_rgb565)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = *src; - texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); - texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F); - texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb565(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_565(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_RGB565_REV ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */ -static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */ - texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) ); - texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) ); - texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb565_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB4444 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */ -static void FETCH(f_argb4444)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = *src; - texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); - texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); - texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); - texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); -} - -#if DIM == 3 -static void store_texel_argb4444(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB4444_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */ -static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); - texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); - texel[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); - texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); -} - -#if DIM == 3 -static void store_texel_argb4444_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); -} -#endif - -/* MESA_FORMAT_RGBA5551 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ -static void FETCH(f_rgba5551)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = *src; - texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); - texel[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F); - texel[BCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F); - texel[ACOMP] = ((s ) & 0x01) * 1.0F; -} - -#if DIM == 3 -static void store_texel_rgba5551(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_5551(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - -/* MESA_FORMAT_ARGB1555 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ -static void FETCH(f_argb1555)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = *src; - texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); - texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); - texel[BCOMP] = ((s >> 0) & 0x1f) * (1.0F / 31.0F); - texel[ACOMP] = ((s >> 15) & 0x01) * 1.0F; -} - -#if DIM == 3 -static void store_texel_argb1555(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_1555(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB1555_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */ -static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */ - texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) ); - texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) ); - texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = UBYTE_TO_FLOAT( ((s >> 15) & 0x01) * 255 ); -} - -#if DIM == 3 -static void store_texel_argb1555_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_1555_REV(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB2101010 ***************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb2101010 texture, return 4 GLchans */ -static void FETCH(f_argb2101010)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - const GLuint s = *src; - texel[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); - texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); - texel[BCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); - texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); -} - -#if DIM == 3 -static void store_texel_argb2101010(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_2101010_UB(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_RG88 **********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ -static void FETCH(f_rg88)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_rg88(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_88(rgba[RCOMP], rgba[GCOMP]); -} -#endif - - -/* MESA_FORMAT_RG88_REV ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D rg88_rev texture, return 4 GLchans */ -static void FETCH(f_rg88_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_rg88_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_88(rgba[GCOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_AL44 **********************************************************/ - -/* Fetch texel from 1D, 2D or 3D al44 texture, return 4 GLchans */ -static void FETCH(f_al44)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F); - texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); -} - -#if DIM == 3 -static void store_texel_al44(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = PACK_COLOR_44(rgba[ACOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_AL88 **********************************************************/ - -/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */ -static void FETCH(f_al88)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); -} - -#if DIM == 3 -static void store_texel_al88(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_88(rgba[ACOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_R8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ -static void FETCH(f_r8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = UBYTE_TO_FLOAT(s); - texel[GCOMP] = 0.0; - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_r8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_R16 ***********************************************************/ - -/* Fetch texel from 1D, 2D or 3D r16 texture, return 4 GLchans */ -static void FETCH(f_r16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = USHORT_TO_FLOAT(s); - texel[GCOMP] = 0.0; - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_r16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_AL88_REV ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */ -static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 ); - texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); -} - -#if DIM == 3 -static void store_texel_al88_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_88(rgba[RCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_RG1616 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rg1616 texture, return 4 GLchans */ -static void FETCH(f_rg1616)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = USHORT_TO_FLOAT( s & 0xffff ); - texel[GCOMP] = USHORT_TO_FLOAT( s >> 16 ); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_rg1616(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[GCOMP]); -} -#endif - - -/* MESA_FORMAT_RG1616_REV ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D rg1616_rev texture, return 4 GLchans */ -static void FETCH(f_rg1616_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = USHORT_TO_FLOAT( s >> 16 ); - texel[GCOMP] = USHORT_TO_FLOAT( s & 0xffff ); - texel[BCOMP] = 0.0; - texel[ACOMP] = 1.0; -} - -#if DIM == 3 -static void store_texel_rg1616_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = PACK_COLOR_1616(rgba[GCOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_AL1616 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D al1616 texture, return 4 GLchans */ -static void FETCH(f_al1616)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff ); - texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 ); -} - -#if DIM == 3 -static void store_texel_al1616(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_1616(rgba[ACOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_AL1616_REV ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D al1616_rev texture, return 4 GLchans */ -static void FETCH(f_al1616_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 ); - texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff ); -} - -#if DIM == 3 -static void store_texel_al1616_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_RGB332 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */ -static void FETCH(f_rgb332)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - const GLubyte s = *src; - texel[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F); - texel[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F); - texel[BCOMP] = ((s ) & 0x3) * (1.0F / 3.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb332(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = PACK_COLOR_332(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_A8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ -static void FETCH(f_a8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_a8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_A16 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ -static void FETCH(f_a16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_a16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_L8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */ -static void FETCH(f_l8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_l8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_L16 ***********************************************************/ - -/* Fetch texel from 1D, 2D or 3D l16 texture, return 4 GLchans */ -static void FETCH(f_l16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = USHORT_TO_FLOAT( src[0] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_l16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_I8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */ -static void FETCH(f_i8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_i8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_I16 ***********************************************************/ - -/* Fetch texel from 1D, 2D or 3D i16 texture, return 4 GLchans */ -static void FETCH(f_i16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_i16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_CI8 ***********************************************************/ - -/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a - * color table, and return 4 GLchans. - */ -static void FETCH(f_ci8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - const struct gl_color_table *palette; - GLuint index; - GET_CURRENT_CONTEXT(ctx); - - if (ctx->Texture.SharedPalette) { - palette = &ctx->Texture.Palette; - } - else { - palette = &texImage->TexObject->Palette; - } - if (palette->Size == 0) - return; /* undefined results */ - - /* Mask the index against size of palette to avoid going out of bounds */ - index = (*src) & (palette->Size - 1); - - { - const GLfloat *table = palette->TableF; - switch (palette->_BaseFormat) { - case GL_ALPHA: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = table[index]; - break; - case GL_LUMINANCE: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = table[index]; - texel[ACOMP] = 1.0F; - break; - case GL_INTENSITY: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = table[index]; - break; - case GL_LUMINANCE_ALPHA: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = table[index * 2 + 0]; - texel[ACOMP] = table[index * 2 + 1]; - break; - case GL_RGB: - texel[RCOMP] = table[index * 3 + 0]; - texel[GCOMP] = table[index * 3 + 1]; - texel[BCOMP] = table[index * 3 + 2]; - texel[ACOMP] = 1.0F; - break; - case GL_RGBA: - texel[RCOMP] = table[index * 4 + 0]; - texel[GCOMP] = table[index * 4 + 1]; - texel[BCOMP] = table[index * 4 + 2]; - texel[ACOMP] = table[index * 4 + 3]; - break; - default: - _mesa_problem(ctx, "Bad palette format in fetch_texel_ci8"); - return; - } - } -} - -#if DIM == 3 -static void store_texel_ci8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *index = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - *dst = *index; -} -#endif - - -/* Fetch texel from 1D, 2D or 3D srgb8 texture, return 4 GLfloats */ -/* Note: component order is same as for MESA_FORMAT_RGB888 */ -static void FETCH(srgb8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - texel[RCOMP] = nonlinear_to_linear(src[2]); - texel[GCOMP] = nonlinear_to_linear(src[1]); - texel[BCOMP] = nonlinear_to_linear(src[0]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_srgb8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); - dst[0] = rgba[BCOMP]; /* no conversion */ - dst[1] = rgba[GCOMP]; - dst[2] = rgba[RCOMP]; -} -#endif - -/* Fetch texel from 1D, 2D or 3D srgba8 texture, return 4 GLfloats */ -static void FETCH(srgba8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = nonlinear_to_linear( (s >> 24) ); - texel[GCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); - texel[BCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); /* linear! */ -} - -#if DIM == 3 -static void store_texel_srgba8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - -/* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */ -static void FETCH(sargb8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); - texel[GCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); - texel[BCOMP] = nonlinear_to_linear( (s ) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */ -} - -#if DIM == 3 -static void store_texel_sargb8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - -/* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */ -static void FETCH(sl8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = nonlinear_to_linear(src[0]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_sl8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - -/* Fetch texel from 1D, 2D or 3D sla8 texture, return 4 GLfloats */ -static void FETCH(sla8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = nonlinear_to_linear(src[0]); - texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */ -} - -#if DIM == 3 -static void store_texel_sla8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_INT8 **************************************************/ - -static void -FETCH(rgba_int8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_int8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_INT16 **************************************************/ - -static void -FETCH(rgba_int16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLshort *src = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_int16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_INT32 **************************************************/ - -static void -FETCH(rgba_int32)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLint *src = TEXEL_ADDR(GLint, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_int32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLint *rgba = (const GLint *) texel; - GLint *dst = TEXEL_ADDR(GLint, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_UINT8 **************************************************/ - -static void -FETCH(rgba_uint8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_uint8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_UINT16 **************************************************/ - -static void -FETCH(rgba_uint16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_uint16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_UINT32 **************************************************/ - -static void -FETCH(rgba_uint32)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); - texel[RCOMP] = (GLfloat) src[0]; - texel[GCOMP] = (GLfloat) src[1]; - texel[BCOMP] = (GLfloat) src[2]; - texel[ACOMP] = (GLfloat) src[3]; -} - -#if DIM == 3 -static void -store_texel_rgba_uint32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLuint *rgba = (const GLuint *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_DUDV8 ********************************************************/ - -/* this format by definition produces 0,0,0,1 as rgba values, - however we'll return the dudv values as rg and fix up elsewhere */ -static void FETCH(dudv8)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 2); - texel[RCOMP] = BYTE_TO_FLOAT(src[0]); - texel[GCOMP] = BYTE_TO_FLOAT(src[1]); - texel[BCOMP] = 0; - texel[ACOMP] = 0; -} - - -/* MESA_FORMAT_SIGNED_R8 ***********************************************/ - -static void FETCH(signed_r8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX( s ); - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_signed_r8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_A8 ***********************************************/ - -static void FETCH(signed_a8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - texel[RCOMP] = 0.0F; - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); -} - -#if DIM == 3 -static void store_texel_signed_a8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - *dst = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_L8 ***********************************************/ - -static void FETCH(signed_l8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = BYTE_TO_FLOAT_TEX( s ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_signed_l8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_I8 ***********************************************/ - -static void FETCH(signed_i8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); -} - -#if DIM == 3 -static void store_texel_signed_i8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_RG88_REV ***********************************************/ - -static void FETCH(signed_rg88_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); - texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_signed_rg88_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rg = (const GLbyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - dst[0] = PACK_COLOR_88(rg[GCOMP], rg[RCOMP]); -} -#endif - - -/* MESA_FORMAT_SIGNED_AL88 ***********************************************/ - -static void FETCH(signed_al88)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); - texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); -} - -#if DIM == 3 -static void store_texel_signed_al88(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rg = (const GLbyte *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); - dst[0] = PACK_COLOR_88(rg[ACOMP], rg[RCOMP]); -} -#endif - - -/* MESA_FORMAT_SIGNED_RGBX8888 ***********************************************/ - -static void FETCH(signed_rgbx8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); - texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); - texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); - texel[ACOMP] = 1.0f; -} - -#if DIM == 3 -static void store_texel_signed_rgbx8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], 255); -} -#endif - - -/* MESA_FORMAT_SIGNED_RGBA8888 ***********************************************/ - -static void FETCH(signed_rgba8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); - texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); - texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); - texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); -} - -#if DIM == 3 -static void store_texel_signed_rgba8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLbyte *rgba = (const GLbyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - -static void FETCH(signed_rgba8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); - texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); - texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); - texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); -} - -#if DIM == 3 -static void store_texel_signed_rgba8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - - -/* MESA_FORMAT_SIGNED_R16 ***********************************************/ - -static void -FETCH(signed_r16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = SHORT_TO_FLOAT_TEX( s ); - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void -store_texel_signed_r16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - *dst = rgba[0]; -} -#endif - - -/* MESA_FORMAT_SIGNED_A16 ***********************************************/ - -static void -FETCH(signed_a16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = 0.0F; - texel[GCOMP] = 0.0F; - texel[BCOMP] = 0.0F; - texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); -} - -#if DIM == 3 -static void -store_texel_signed_a16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - *dst = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_L16 ***********************************************/ - -static void -FETCH(signed_l16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = SHORT_TO_FLOAT_TEX( s ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void -store_texel_signed_l16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_I16 ***********************************************/ - -static void -FETCH(signed_i16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); -} - -#if DIM == 3 -static void -store_texel_signed_i16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_RG1616 ***********************************************/ - -static void -FETCH(signed_rg1616)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); - texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); - texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); - texel[BCOMP] = 0.0F; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void -store_texel_signed_rg1616(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_AL1616 ***********************************************/ - -static void -FETCH(signed_al1616)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); - texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] ); -} - -#if DIM == 3 -static void -store_texel_signed_al1616(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_RGB_16 ***********************************************/ - -static void -FETCH(signed_rgb_16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); - texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); - texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); - texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void -store_texel_signed_rgb_16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; -} -#endif - - -/* MESA_FORMAT_SIGNED_RGBA_16 ***********************************************/ - -static void -FETCH(signed_rgba_16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); - texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); - texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); - texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); - texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] ); -} - -#if DIM == 3 -static void -store_texel_signed_rgba_16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLshort *rgba = (const GLshort *) texel; - GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - - -/* MESA_FORMAT_RGBA_16 ***********************************************/ - -static void -FETCH(rgba_16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel) -{ - const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); - texel[RCOMP] = USHORT_TO_FLOAT( s[0] ); - texel[GCOMP] = USHORT_TO_FLOAT( s[1] ); - texel[BCOMP] = USHORT_TO_FLOAT( s[2] ); - texel[ACOMP] = USHORT_TO_FLOAT( s[3] ); -} - -#if DIM == 3 -static void -store_texel_rgba_16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *rgba = (const GLushort *) texel; - GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - - - -/* MESA_FORMAT_YCBCR *********************************************************/ - -/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats. - * We convert YCbCr to RGB here. - */ -static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ - const GLubyte cb = *src0 & 0xff; /* chroma U */ - const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ - const GLubyte cr = *src1 & 0xff; /* chroma V */ - const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ - GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); - GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); - GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); - r *= (1.0F / 255.0F); - g *= (1.0F / 255.0F); - b *= (1.0F / 255.0F); - texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); - texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); - texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_ycbcr(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - (void) texImage; - (void) i; - (void) j; - (void) k; - (void) texel; - /* XXX to do */ -} -#endif - - -/* MESA_FORMAT_YCBCR_REV *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats. - * We convert YCbCr to RGB here. - */ -static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = *src0 & 0xff; /* luminance */ - const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ - const GLubyte y1 = *src1 & 0xff; /* luminance */ - const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ - const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ - GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); - GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); - GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); - r *= (1.0F / 255.0F); - g *= (1.0F / 255.0F); - b *= (1.0F / 255.0F); - texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); - texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); - texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_ycbcr_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - (void) texImage; - (void) i; - (void) j; - (void) k; - (void) texel; - /* XXX to do */ -} -#endif - - -/* MESA_TEXFORMAT_Z24_S8 ***************************************************/ - -static void FETCH(f_z24_s8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - /* only return Z, not stencil data */ - const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - const GLfloat scale = 1.0F / (GLfloat) 0xffffff; - texel[0] = ((*src) >> 8) * scale; - ASSERT(texImage->TexFormat == MESA_FORMAT_Z24_S8); - ASSERT(texel[0] >= 0.0F); - ASSERT(texel[0] <= 1.0F); -} - -#if DIM == 3 -static void store_texel_z24_s8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - /* only store Z, not stencil */ - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - GLfloat depth = *((GLfloat *) texel); - GLuint zi = ((GLuint) (depth * 0xffffff)) << 8; - *dst = zi | (*dst & 0xff); -} -#endif - - -/* MESA_TEXFORMAT_S8_Z24 ***************************************************/ - -static void FETCH(f_s8_z24)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - /* only return Z, not stencil data */ - const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - const GLfloat scale = 1.0F / (GLfloat) 0xffffff; - texel[0] = ((*src) & 0x00ffffff) * scale; - ASSERT(texImage->TexFormat == MESA_FORMAT_S8_Z24); - ASSERT(texel[0] >= 0.0F); - ASSERT(texel[0] <= 1.0F); -} - -#if DIM == 3 -static void store_texel_s8_z24(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - /* only store Z, not stencil */ - GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); - GLfloat depth = *((GLfloat *) texel); - GLuint zi = (GLuint) (depth * 0xffffff); - *dst = zi | (*dst & 0xff000000); -} -#endif - - -#undef TEXEL_ADDR -#undef DIM -#undef FETCH +/* + * 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 texfetch_tmp.h + * Texel fetch functions template. + * + * This template file is used by texfetch.c to generate texel fetch functions + * for 1-D, 2-D and 3-D texture images. + * + * It should be expanded by defining \p DIM as the number texture dimensions + * (1, 2 or 3). According to the value of \p DIM a series of macros is defined + * for the texel lookup in the gl_texture_image::Data. + * + * \author Gareth Hughes + * \author Brian Paul + */ + + +#if DIM == 1 + +#define TEXEL_ADDR( type, image, i, j, k, size ) \ + ((void) (j), (void) (k), ((type *)(image)->Data + (i) * (size))) + +#define FETCH(x) fetch_texel_1d_##x + +#elif DIM == 2 + +#define TEXEL_ADDR( type, image, i, j, k, size ) \ + ((void) (k), \ + ((type *)(image)->Data + ((image)->RowStride * (j) + (i)) * (size))) + +#define FETCH(x) fetch_texel_2d_##x + +#elif DIM == 3 + +#define TEXEL_ADDR( type, image, i, j, k, size ) \ + ((type *)(image)->Data + ((image)->ImageOffsets[k] \ + + (image)->RowStride * (j) + (i)) * (size)) + +#define FETCH(x) fetch_texel_3d_##x + +#else +#error illegal number of texture dimensions +#endif + + +/* MESA_FORMAT_Z32 ***********************************************************/ + +/* Fetch depth texel from 1D, 2D or 3D 32-bit depth texture, + * returning 1 GLfloat. + * Note: no GLchan version of this function. + */ +static void FETCH(f_z32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[0] = src[0] * (1.0F / 0xffffffff); +} + +#if DIM == 3 +static void store_texel_z32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLuint *depth = (const GLuint *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + dst[0] = *depth; +} +#endif + + +/* MESA_FORMAT_Z16 ***********************************************************/ + +/* Fetch depth texel from 1D, 2D or 3D 16-bit depth texture, + * returning 1 GLfloat. + * Note: no GLchan version of this function. + */ +static void FETCH(f_z16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[0] = src[0] * (1.0F / 65535.0F); +} + +#if DIM == 3 +static void store_texel_z16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *depth = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + dst[0] = *depth; +} +#endif + + +/* MESA_FORMAT_RGBA_F32 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats. + */ +static void FETCH(f_rgba_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); + texel[RCOMP] = src[0]; + texel[GCOMP] = src[1]; + texel[BCOMP] = src[2]; + texel[ACOMP] = src[3]; +} + +#if DIM == 3 +static void store_texel_rgba_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *depth = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); + dst[0] = depth[RCOMP]; + dst[1] = depth[GCOMP]; + dst[2] = depth[BCOMP]; + dst[3] = depth[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_F16 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_rgba_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); + texel[RCOMP] = _mesa_half_to_float(src[0]); + texel[GCOMP] = _mesa_half_to_float(src[1]); + texel[BCOMP] = _mesa_half_to_float(src[2]); + texel[ACOMP] = _mesa_half_to_float(src[3]); +} + +#if DIM == 3 +static void store_texel_rgba_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *src = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); + dst[0] = _mesa_float_to_half(src[RCOMP]); + dst[1] = _mesa_float_to_half(src[GCOMP]); + dst[2] = _mesa_float_to_half(src[BCOMP]); + dst[3] = _mesa_float_to_half(src[ACOMP]); +} +#endif + +/* MESA_FORMAT_RGB_F32 *******************************************************/ + +/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_rgb_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); + texel[RCOMP] = src[0]; + texel[GCOMP] = src[1]; + texel[BCOMP] = src[2]; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *src = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); + dst[0] = src[RCOMP]; + dst[1] = src[GCOMP]; + dst[2] = src[BCOMP]; +} +#endif + + +/* MESA_FORMAT_RGB_F16 *******************************************************/ + +/* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_rgb_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); + texel[RCOMP] = _mesa_half_to_float(src[0]); + texel[GCOMP] = _mesa_half_to_float(src[1]); + texel[BCOMP] = _mesa_half_to_float(src[2]); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *src = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); + dst[0] = _mesa_float_to_half(src[RCOMP]); + dst[1] = _mesa_float_to_half(src[GCOMP]); + dst[2] = _mesa_float_to_half(src[BCOMP]); +} +#endif + + +/* MESA_FORMAT_ALPHA_F32 *****************************************************/ + +/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_alpha_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = src[0]; +} + +#if DIM == 3 +static void store_texel_alpha_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + dst[0] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_ALPHA_F32 *****************************************************/ + +/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_alpha_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = _mesa_half_to_float(src[0]); +} + +#if DIM == 3 +static void store_texel_alpha_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + dst[0] = _mesa_float_to_half(rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_LUMINANCE_F32 *************************************************/ + +/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_luminance_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = src[0]; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_luminance_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + dst[0] = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_LUMINANCE_F16 *************************************************/ + +/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_luminance_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = _mesa_half_to_float(src[0]); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_luminance_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + dst[0] = _mesa_float_to_half(rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/ + +/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_luminance_alpha_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = src[0]; + texel[ACOMP] = src[1]; +} + +#if DIM == 3 +static void store_texel_luminance_alpha_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/ + +/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_luminance_alpha_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = _mesa_half_to_float(src[0]); + texel[ACOMP] = _mesa_half_to_float(src[1]); +} + +#if DIM == 3 +static void store_texel_luminance_alpha_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); + dst[0] = _mesa_float_to_half(rgba[RCOMP]); + dst[1] = _mesa_float_to_half(rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_INTENSITY_F32 *************************************************/ + +/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_intensity_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = src[0]; +} + +#if DIM == 3 +static void store_texel_intensity_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + dst[0] = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_INTENSITY_F16 *************************************************/ + +/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_intensity_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = _mesa_half_to_float(src[0]); +} + +#if DIM == 3 +static void store_texel_intensity_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + dst[0] = _mesa_float_to_half(rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_R_FLOAT32 *****************************************************/ + +/* Fetch texel from 1D, 2D or 3D R_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_r_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + texel[RCOMP] = src[0]; + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_r_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); + dst[0] = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_R_FLOAT16 *****************************************************/ + +/* Fetch texel from 1D, 2D or 3D R_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_r_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + texel[RCOMP] = _mesa_half_to_float(src[0]); + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_r_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); + dst[0] = _mesa_float_to_half(rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_RG_FLOAT32 ****************************************************/ + +/* Fetch texel from 1D, 2D or 3D RG_FLOAT32 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_rg_f32)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); + texel[RCOMP] = src[0]; + texel[GCOMP] = src[1]; + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rg_f32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLfloat *dst = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; +} +#endif + + +/* MESA_FORMAT_RG_FLOAT16 ****************************************************/ + +/* Fetch texel from 1D, 2D or 3D RG_FLOAT16 texture, + * returning 4 GLfloats. + */ +static void FETCH(f_rg_f16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); + texel[RCOMP] = _mesa_half_to_float(src[0]); + texel[GCOMP] = _mesa_half_to_float(src[1]); + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rg_f16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *rgba = (const GLfloat *) texel; + GLhalfARB *dst = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); + dst[0] = _mesa_float_to_half(rgba[RCOMP]); + dst[1] = _mesa_float_to_half(rgba[GCOMP]); +} +#endif + + +/* + * Begin Hardware formats + */ + +/* MESA_FORMAT_RGBA8888 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */ +static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); +} + + + +#if DIM == 3 +static void store_texel_rgba8888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_RGBA888_REV ***************************************************/ + +/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */ +static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); +} + +#if DIM == 3 +static void store_texel_rgba8888_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB8888 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */ +static void FETCH(f_argb8888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); +} + +#if DIM == 3 +static void store_texel_argb8888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB8888_REV **************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */ +static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); +} + +#if DIM == 3 +static void store_texel_argb8888_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_XRGB8888 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D xrgb8888 texture, return 4 GLchans */ +static void FETCH(f_xrgb8888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); + texel[ACOMP] = 1.0f; +} + +#if DIM == 3 +static void store_texel_xrgb8888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(0xff, rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_XRGB8888_REV **************************************************/ + +/* Fetch texel from 1D, 2D or 3D xrgb8888_rev texture, return 4 GLfloats */ +static void FETCH(f_xrgb8888_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); + texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); + texel[ACOMP] = 1.0f; +} + +#if DIM == 3 +static void store_texel_xrgb8888_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP], 0xff); +} +#endif + + +/* MESA_FORMAT_RGB888 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */ +static void FETCH(f_rgb888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + texel[RCOMP] = UBYTE_TO_FLOAT( src[2] ); + texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); + texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + dst[0] = rgba[BCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_BGR888 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */ +static void FETCH(f_bgr888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + texel[RCOMP] = UBYTE_TO_FLOAT( src[0] ); + texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); + texel[BCOMP] = UBYTE_TO_FLOAT( src[2] ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_bgr888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; +} +#endif + + +/* use color expansion like (g << 2) | (g >> 4) (does somewhat random rounding) + instead of slow (g << 2) * 255 / 252 (always rounds down) */ + +/* MESA_FORMAT_RGB565 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */ +static void FETCH(f_rgb565)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = *src; + texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); + texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F); + texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb565(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_565(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_RGB565_REV ****************************************************/ + +/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */ +static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */ + texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) ); + texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) ); + texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb565_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB4444 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */ +static void FETCH(f_argb4444)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = *src; + texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); + texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); + texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); + texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); +} + +#if DIM == 3 +static void store_texel_argb4444(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB4444_REV **************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */ +static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); + texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); + texel[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); + texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); +} + +#if DIM == 3 +static void store_texel_argb4444_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); +} +#endif + +/* MESA_FORMAT_RGBA5551 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ +static void FETCH(f_rgba5551)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = *src; + texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F); + texel[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F); + texel[BCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F); + texel[ACOMP] = ((s ) & 0x01) * 1.0F; +} + +#if DIM == 3 +static void store_texel_rgba5551(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_5551(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + +/* MESA_FORMAT_ARGB1555 ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ +static void FETCH(f_argb1555)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = *src; + texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); + texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); + texel[BCOMP] = ((s >> 0) & 0x1f) * (1.0F / 31.0F); + texel[ACOMP] = ((s >> 15) & 0x01) * 1.0F; +} + +#if DIM == 3 +static void store_texel_argb1555(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_1555(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB1555_REV **************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */ +static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */ + texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) ); + texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) ); + texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); + texel[ACOMP] = UBYTE_TO_FLOAT( ((s >> 15) & 0x01) * 255 ); +} + +#if DIM == 3 +static void store_texel_argb1555_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_1555_REV(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_ARGB2101010 ***************************************************/ + +/* Fetch texel from 1D, 2D or 3D argb2101010 texture, return 4 GLchans */ +static void FETCH(f_argb2101010)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + const GLuint s = *src; + texel[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); + texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); + texel[BCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); + texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); +} + +#if DIM == 3 +static void store_texel_argb2101010(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_2101010_UB(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_RG88 **********************************************************/ + +/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ +static void FETCH(f_rg88)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_rg88(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_88(rgba[RCOMP], rgba[GCOMP]); +} +#endif + + +/* MESA_FORMAT_RG88_REV ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D rg88_rev texture, return 4 GLchans */ +static void FETCH(f_rg88_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_rg88_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_88(rgba[GCOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_AL44 **********************************************************/ + +/* Fetch texel from 1D, 2D or 3D al44 texture, return 4 GLchans */ +static void FETCH(f_al44)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F); + texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); +} + +#if DIM == 3 +static void store_texel_al44(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = PACK_COLOR_44(rgba[ACOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_AL88 **********************************************************/ + +/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */ +static void FETCH(f_al88)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); +} + +#if DIM == 3 +static void store_texel_al88(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_88(rgba[ACOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_R8 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ +static void FETCH(f_r8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = UBYTE_TO_FLOAT(s); + texel[GCOMP] = 0.0; + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_r8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_R16 ***********************************************************/ + +/* Fetch texel from 1D, 2D or 3D r16 texture, return 4 GLchans */ +static void FETCH(f_r16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = USHORT_TO_FLOAT(s); + texel[GCOMP] = 0.0; + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_r16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_AL88_REV ******************************************************/ + +/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */ +static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 ); + texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); +} + +#if DIM == 3 +static void store_texel_al88_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_88(rgba[RCOMP], rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_RG1616 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D rg1616 texture, return 4 GLchans */ +static void FETCH(f_rg1616)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + texel[GCOMP] = USHORT_TO_FLOAT( s >> 16 ); + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_rg1616(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[GCOMP]); +} +#endif + + +/* MESA_FORMAT_RG1616_REV ****************************************************/ + +/* Fetch texel from 1D, 2D or 3D rg1616_rev texture, return 4 GLchans */ +static void FETCH(f_rg1616_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = USHORT_TO_FLOAT( s >> 16 ); + texel[GCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + texel[BCOMP] = 0.0; + texel[ACOMP] = 1.0; +} + +#if DIM == 3 +static void store_texel_rg1616_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = PACK_COLOR_1616(rgba[GCOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_AL1616 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D al1616 texture, return 4 GLchans */ +static void FETCH(f_al1616)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff ); + texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 ); +} + +#if DIM == 3 +static void store_texel_al1616(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_1616(rgba[ACOMP], rgba[RCOMP]); +} +#endif + + +/* MESA_FORMAT_AL1616_REV ****************************************************/ + +/* Fetch texel from 1D, 2D or 3D al1616_rev texture, return 4 GLchans */ +static void FETCH(f_al1616_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 ); + texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff ); +} + +#if DIM == 3 +static void store_texel_al1616_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_1616(rgba[RCOMP], rgba[ACOMP]); +} +#endif + + +/* MESA_FORMAT_RGB332 ********************************************************/ + +/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */ +static void FETCH(f_rgb332)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + const GLubyte s = *src; + texel[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F); + texel[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F); + texel[BCOMP] = ((s ) & 0x3) * (1.0F / 3.0F); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb332(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = PACK_COLOR_332(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + + +/* MESA_FORMAT_A8 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ +static void FETCH(f_a8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); +} + +#if DIM == 3 +static void store_texel_a8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_A16 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ +static void FETCH(f_a16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); +} + +#if DIM == 3 +static void store_texel_a16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_L8 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */ +static void FETCH(f_l8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_l8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_L16 ***********************************************************/ + +/* Fetch texel from 1D, 2D or 3D l16 texture, return 4 GLchans */ +static void FETCH(f_l16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = USHORT_TO_FLOAT( src[0] ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_l16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_I8 ************************************************************/ + +/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */ +static void FETCH(f_i8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); +} + +#if DIM == 3 +static void store_texel_i8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_I16 ***********************************************************/ + +/* Fetch texel from 1D, 2D or 3D i16 texture, return 4 GLchans */ +static void FETCH(f_i16)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); +} + +#if DIM == 3 +static void store_texel_i16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_CI8 ***********************************************************/ + +/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a + * color table, and return 4 GLchans. + */ +static void FETCH(f_ci8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + const struct gl_color_table *palette; + GLuint index; + GET_CURRENT_CONTEXT(ctx); + + if (ctx->Texture.SharedPalette) { + palette = &ctx->Texture.Palette; + } + else { + palette = &texImage->TexObject->Palette; + } + if (palette->Size == 0) + return; /* undefined results */ + + /* Mask the index against size of palette to avoid going out of bounds */ + index = (*src) & (palette->Size - 1); + + { + const GLfloat *table = palette->TableF; + switch (palette->_BaseFormat) { + case GL_ALPHA: + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = 0.0F; + texel[ACOMP] = table[index]; + break; + case GL_LUMINANCE: + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = table[index]; + texel[ACOMP] = 1.0F; + break; + case GL_INTENSITY: + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = table[index]; + break; + case GL_LUMINANCE_ALPHA: + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = table[index * 2 + 0]; + texel[ACOMP] = table[index * 2 + 1]; + break; + case GL_RGB: + texel[RCOMP] = table[index * 3 + 0]; + texel[GCOMP] = table[index * 3 + 1]; + texel[BCOMP] = table[index * 3 + 2]; + texel[ACOMP] = 1.0F; + break; + case GL_RGBA: + texel[RCOMP] = table[index * 4 + 0]; + texel[GCOMP] = table[index * 4 + 1]; + texel[BCOMP] = table[index * 4 + 2]; + texel[ACOMP] = table[index * 4 + 3]; + break; + default: + _mesa_problem(ctx, "Bad palette format in fetch_texel_ci8"); + return; + } + } +} + +#if DIM == 3 +static void store_texel_ci8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *index = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + *dst = *index; +} +#endif + + +/* Fetch texel from 1D, 2D or 3D srgb8 texture, return 4 GLfloats */ +/* Note: component order is same as for MESA_FORMAT_RGB888 */ +static void FETCH(srgb8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + texel[RCOMP] = nonlinear_to_linear(src[2]); + texel[GCOMP] = nonlinear_to_linear(src[1]); + texel[BCOMP] = nonlinear_to_linear(src[0]); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_srgb8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3); + dst[0] = rgba[BCOMP]; /* no conversion */ + dst[1] = rgba[GCOMP]; + dst[2] = rgba[RCOMP]; +} +#endif + +/* Fetch texel from 1D, 2D or 3D srgba8 texture, return 4 GLfloats */ +static void FETCH(srgba8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = nonlinear_to_linear( (s >> 24) ); + texel[GCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); + texel[BCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); /* linear! */ +} + +#if DIM == 3 +static void store_texel_srgba8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + +/* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */ +static void FETCH(sargb8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = nonlinear_to_linear( (s >> 16) & 0xff ); + texel[GCOMP] = nonlinear_to_linear( (s >> 8) & 0xff ); + texel[BCOMP] = nonlinear_to_linear( (s ) & 0xff ); + texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */ +} + +#if DIM == 3 +static void store_texel_sargb8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); +} +#endif + +/* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */ +static void FETCH(sl8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = nonlinear_to_linear(src[0]); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_sl8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); + dst[0] = rgba[RCOMP]; +} +#endif + +/* Fetch texel from 1D, 2D or 3D sla8 texture, return 4 GLfloats */ +static void FETCH(sla8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = nonlinear_to_linear(src[0]); + texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */ +} + +#if DIM == 3 +static void store_texel_sla8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_INT8 **************************************************/ + +static void +FETCH(rgba_int8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_int8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_INT16 **************************************************/ + +static void +FETCH(rgba_int16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLshort *src = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_int16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_INT32 **************************************************/ + +static void +FETCH(rgba_int32)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLint *src = TEXEL_ADDR(GLint, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_int32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLint *rgba = (const GLint *) texel; + GLint *dst = TEXEL_ADDR(GLint, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_UINT8 **************************************************/ + +static void +FETCH(rgba_uint8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_uint8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_UINT16 **************************************************/ + +static void +FETCH(rgba_uint16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_uint16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_RGBA_UINT32 **************************************************/ + +static void +FETCH(rgba_uint32)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); + texel[RCOMP] = (GLfloat) src[0]; + texel[GCOMP] = (GLfloat) src[1]; + texel[BCOMP] = (GLfloat) src[2]; + texel[ACOMP] = (GLfloat) src[3]; +} + +#if DIM == 3 +static void +store_texel_rgba_uint32(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLuint *rgba = (const GLuint *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_DUDV8 ********************************************************/ + +/* this format by definition produces 0,0,0,1 as rgba values, + however we'll return the dudv values as rg and fix up elsewhere */ +static void FETCH(dudv8)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 2); + texel[RCOMP] = BYTE_TO_FLOAT(src[0]); + texel[GCOMP] = BYTE_TO_FLOAT(src[1]); + texel[BCOMP] = 0; + texel[ACOMP] = 0; +} + + +/* MESA_FORMAT_SIGNED_R8 ***********************************************/ + +static void FETCH(signed_r8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + texel[RCOMP] = BYTE_TO_FLOAT_TEX( s ); + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_signed_r8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_A8 ***********************************************/ + +static void FETCH(signed_a8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + texel[RCOMP] = 0.0F; + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); +} + +#if DIM == 3 +static void store_texel_signed_a8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + *dst = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_L8 ***********************************************/ + +static void FETCH(signed_l8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = BYTE_TO_FLOAT_TEX( s ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_signed_l8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_I8 ***********************************************/ + +static void FETCH(signed_i8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); +} + +#if DIM == 3 +static void store_texel_signed_i8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLbyte *dst = TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_RG88_REV ***********************************************/ + +static void FETCH(signed_rg88_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); + texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_signed_rg88_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rg = (const GLbyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + dst[0] = PACK_COLOR_88(rg[GCOMP], rg[RCOMP]); +} +#endif + + +/* MESA_FORMAT_SIGNED_AL88 ***********************************************/ + +static void FETCH(signed_al88)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); + texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); +} + +#if DIM == 3 +static void store_texel_signed_al88(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rg = (const GLbyte *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); + dst[0] = PACK_COLOR_88(rg[ACOMP], rg[RCOMP]); +} +#endif + + +/* MESA_FORMAT_SIGNED_RGBX8888 ***********************************************/ + +static void FETCH(signed_rgbx8888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); + texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + texel[ACOMP] = 1.0f; +} + +#if DIM == 3 +static void store_texel_signed_rgbx8888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], 255); +} +#endif + + +/* MESA_FORMAT_SIGNED_RGBA8888 ***********************************************/ + +static void FETCH(signed_rgba8888)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); + texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); +} + +#if DIM == 3 +static void store_texel_signed_rgba8888(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLbyte *rgba = (const GLbyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + +static void FETCH(signed_rgba8888_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); + texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); + texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); + texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); +} + +#if DIM == 3 +static void store_texel_signed_rgba8888_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLubyte *rgba = (const GLubyte *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); +} +#endif + + + +/* MESA_FORMAT_SIGNED_R16 ***********************************************/ + +static void +FETCH(signed_r16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = SHORT_TO_FLOAT_TEX( s ); + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void +store_texel_signed_r16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + *dst = rgba[0]; +} +#endif + + +/* MESA_FORMAT_SIGNED_A16 ***********************************************/ + +static void +FETCH(signed_a16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = 0.0F; + texel[GCOMP] = 0.0F; + texel[BCOMP] = 0.0F; + texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); +} + +#if DIM == 3 +static void +store_texel_signed_a16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + *dst = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_L16 ***********************************************/ + +static void +FETCH(signed_l16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = SHORT_TO_FLOAT_TEX( s ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void +store_texel_signed_l16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_I16 ***********************************************/ + +static void +FETCH(signed_i16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = + texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); +} + +#if DIM == 3 +static void +store_texel_signed_i16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 1); + *dst = rgba[RCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_RG1616 ***********************************************/ + +static void +FETCH(signed_rg1616)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); + texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); + texel[BCOMP] = 0.0F; + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void +store_texel_signed_rg1616(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_AL1616 ***********************************************/ + +static void +FETCH(signed_al1616)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); + texel[RCOMP] = + texel[GCOMP] = + texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] ); +} + +#if DIM == 3 +static void +store_texel_signed_al1616(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[ACOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_RGB_16 ***********************************************/ + +static void +FETCH(signed_rgb_16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); + texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); + texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void +store_texel_signed_rgb_16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; +} +#endif + + +/* MESA_FORMAT_SIGNED_RGBA_16 ***********************************************/ + +static void +FETCH(signed_rgba_16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); + texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); + texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); + texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); + texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] ); +} + +#if DIM == 3 +static void +store_texel_signed_rgba_16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLshort *rgba = (const GLshort *) texel; + GLshort *dst = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + + +/* MESA_FORMAT_RGBA_16 ***********************************************/ + +static void +FETCH(rgba_16)(const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel) +{ + const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); + texel[RCOMP] = USHORT_TO_FLOAT( s[0] ); + texel[GCOMP] = USHORT_TO_FLOAT( s[1] ); + texel[BCOMP] = USHORT_TO_FLOAT( s[2] ); + texel[ACOMP] = USHORT_TO_FLOAT( s[3] ); +} + +#if DIM == 3 +static void +store_texel_rgba_16(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLushort *rgba = (const GLushort *) texel; + GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); + dst[0] = rgba[RCOMP]; + dst[1] = rgba[GCOMP]; + dst[2] = rgba[BCOMP]; + dst[3] = rgba[ACOMP]; +} +#endif + + + +/* MESA_FORMAT_YCBCR *********************************************************/ + +/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats. + * We convert YCbCr to RGB here. + */ +static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ + const GLushort *src1 = src0 + 1; /* odd */ + const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ + const GLubyte cb = *src0 & 0xff; /* chroma U */ + const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ + const GLubyte cr = *src1 & 0xff; /* chroma V */ + const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ + GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); + GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); + GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); + r *= (1.0F / 255.0F); + g *= (1.0F / 255.0F); + b *= (1.0F / 255.0F); + texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); + texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); + texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_ycbcr(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + (void) texImage; + (void) i; + (void) j; + (void) k; + (void) texel; + /* XXX to do */ +} +#endif + + +/* MESA_FORMAT_YCBCR_REV *****************************************************/ + +/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats. + * We convert YCbCr to RGB here. + */ +static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */ + const GLushort *src1 = src0 + 1; /* odd */ + const GLubyte y0 = *src0 & 0xff; /* luminance */ + const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ + const GLubyte y1 = *src1 & 0xff; /* luminance */ + const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ + const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */ + GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128); + GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128); + GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128); + r *= (1.0F / 255.0F); + g *= (1.0F / 255.0F); + b *= (1.0F / 255.0F); + texel[RCOMP] = CLAMP(r, 0.0F, 1.0F); + texel[GCOMP] = CLAMP(g, 0.0F, 1.0F); + texel[BCOMP] = CLAMP(b, 0.0F, 1.0F); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_ycbcr_rev(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + (void) texImage; + (void) i; + (void) j; + (void) k; + (void) texel; + /* XXX to do */ +} +#endif + + +/* MESA_TEXFORMAT_Z24_S8 ***************************************************/ + +static void FETCH(f_z24_s8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + /* only return Z, not stencil data */ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + texel[0] = ((*src) >> 8) * scale; + ASSERT(texImage->TexFormat == MESA_FORMAT_Z24_S8); + ASSERT(texel[0] >= 0.0F); + ASSERT(texel[0] <= 1.0F); +} + +#if DIM == 3 +static void store_texel_z24_s8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + /* only store Z, not stencil */ + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + GLfloat depth = *((GLfloat *) texel); + GLuint zi = ((GLuint) (depth * 0xffffff)) << 8; + *dst = zi | (*dst & 0xff); +} +#endif + + +/* MESA_TEXFORMAT_S8_Z24 ***************************************************/ + +static void FETCH(f_s8_z24)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + /* only return Z, not stencil data */ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + const GLfloat scale = 1.0F / (GLfloat) 0xffffff; + texel[0] = ((*src) & 0x00ffffff) * scale; + ASSERT(texImage->TexFormat == MESA_FORMAT_S8_Z24); + ASSERT(texel[0] >= 0.0F); + ASSERT(texel[0] <= 1.0F); +} + +#if DIM == 3 +static void store_texel_s8_z24(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + /* only store Z, not stencil */ + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + GLfloat depth = *((GLfloat *) texel); + GLuint zi = (GLuint) (depth * 0xffffff); + *dst = zi | (*dst & 0xff000000); +} +#endif + + +/* MESA_FORMAT_RGB9_E5 ******************************************************/ + +static void FETCH(rgb9_e5)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + rgb9e5_to_float3(*src, texel); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_rgb9_e5(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *src = (const GLfloat *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = float3_to_rgb9e5(src); +} +#endif + + +/* MESA_FORMAT_R11_G11_B10_FLOAT *********************************************/ + +static void FETCH(r11_g11_b10f)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + r11g11b10f_to_float3(*src, texel); + texel[ACOMP] = 1.0F; +} + +#if DIM == 3 +static void store_texel_r11_g11_b10f(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + const GLfloat *src = (const GLfloat *) texel; + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + *dst = float3_to_r11g11b10f(src); +} +#endif + + +#undef TEXEL_ADDR +#undef DIM +#undef FETCH diff --git a/mesalib/src/mesa/main/texformat.c b/mesalib/src/mesa/main/texformat.c index cbebec9aa..41d9e9599 100644 --- a/mesalib/src/mesa/main/texformat.c +++ b/mesalib/src/mesa/main/texformat.c @@ -1,743 +1,763 @@ -/* - * 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); - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE_ALPHA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_LUMINANCE_ALPHA32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_INTENSITY16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_INTENSITY32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RGB16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RGB32F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RGBA16F_ARB: - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - 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.EXT_texture_snorm) { - 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_REV); - break; - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); - /* FALLTHROUGH */ - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_ALPHA_SNORM: - case GL_ALPHA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE_SNORM: - case GL_LUMINANCE8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE_ALPHA_SNORM: - case GL_LUMINANCE8_ALPHA8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_INTENSITY_SNORM: - case GL_INTENSITY8_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_R16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16); - break; - case GL_RG16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616); - break; - case GL_RGB16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); - /* FALLTHROUGH */ - case GL_RGBA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_ALPHA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_LUMINANCE16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16); - /* FALLTHROUGH */ - case GL_LUMINANCE16_ALPHA16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - break; - case GL_INTENSITY16_SNORM: - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); - RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); - 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: - RETURN_IF_SUPPORTED(MESA_FORMAT_R8); - break; - - case GL_COMPRESSED_RED: - RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); - RETURN_IF_SUPPORTED(MESA_FORMAT_R8); - break; - - case GL_R16: - RETURN_IF_SUPPORTED(MESA_FORMAT_R16); - break; - - case GL_RG: - case GL_RG8: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); - break; - - case GL_COMPRESSED_RG: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); - RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); - break; - - case GL_RG16: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616); - break; - - default: - ; /* fallthrough */ - } - } - - if (ctx->Extensions.ARB_texture_rg && ctx->Extensions.ARB_texture_float) { - switch (internalFormat) { - case GL_R16F: - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_R32F: - RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RG16F: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - break; - case GL_RG32F: - RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); - RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); - 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); + RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_ALPHA32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE_ALPHA16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_LUMINANCE_ALPHA32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_INTENSITY16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_INTENSITY32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RGB16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RGB32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RGBA16F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RGBA32F_ARB: + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_texture_shared_exponent) { + switch (internalFormat) { + case GL_RGB9_E5: + ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT]); + return MESA_FORMAT_RGB9_E5_FLOAT; + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.EXT_packed_float) { + switch (internalFormat) { + case GL_R11F_G11F_B10F: + ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R11_G11_B10_FLOAT]); + return MESA_FORMAT_R11_G11_B10_FLOAT; + 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.EXT_texture_snorm) { + 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_REV); + break; + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); + /* FALLTHROUGH */ + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_R16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16); + break; + case GL_RG16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616); + break; + case GL_RGB16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); + /* FALLTHROUGH */ + case GL_RGBA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_ALPHA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_LUMINANCE16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16); + /* FALLTHROUGH */ + case GL_LUMINANCE16_ALPHA16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + break; + case GL_INTENSITY16_SNORM: + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); + RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); + 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: + RETURN_IF_SUPPORTED(MESA_FORMAT_R8); + break; + + case GL_COMPRESSED_RED: + RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); + RETURN_IF_SUPPORTED(MESA_FORMAT_R8); + break; + + case GL_R16: + RETURN_IF_SUPPORTED(MESA_FORMAT_R16); + break; + + case GL_RG: + case GL_RG8: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); + break; + + case GL_COMPRESSED_RG: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); + RETURN_IF_SUPPORTED(MESA_FORMAT_RG88); + break; + + case GL_RG16: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616); + break; + + default: + ; /* fallthrough */ + } + } + + if (ctx->Extensions.ARB_texture_rg && ctx->Extensions.ARB_texture_float) { + switch (internalFormat) { + case GL_R16F: + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_R32F: + RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RG16F: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + break; + case GL_RG32F: + RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); + RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); + 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/texparam.c b/mesalib/src/mesa/main/texparam.c index 3d56dac3f..74e1f4a1b 100644 --- a/mesalib/src/mesa/main/texparam.c +++ b/mesalib/src/mesa/main/texparam.c @@ -1,1460 +1,1458 @@ -/* - * 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 texparam.c - * - * glTexParameter-related functions - */ - - -#include "main/glheader.h" -#include "main/colormac.h" -#include "main/context.h" -#include "main/enums.h" -#include "main/formats.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/state.h" -#include "main/texcompress.h" -#include "main/texparam.h" -#include "main/teximage.h" -#include "main/texstate.h" -#include "main/texfetch.h" -#include "program/prog_instruction.h" - - -/** - * Check if a coordinate wrap mode is supported for the texture target. - * \return GL_TRUE if legal, GL_FALSE otherwise - */ -static GLboolean -validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap) -{ - const struct gl_extensions * const e = & ctx->Extensions; - - if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || - (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { - /* any texture target */ - return GL_TRUE; - } - else if (target != GL_TEXTURE_RECTANGLE_NV && - (wrap == GL_REPEAT || - (wrap == GL_MIRRORED_REPEAT && - e->ARB_texture_mirrored_repeat) || - (wrap == GL_MIRROR_CLAMP_EXT && - (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || - (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && - (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || - (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT && - (e->EXT_texture_mirror_clamp)))) { - /* non-rectangle texture */ - return GL_TRUE; - } - - _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap ); - return GL_FALSE; -} - - -/** - * Get current texture object for given target. - * Return NULL if any error (and record the error). - * Note that this is different from _mesa_select_tex_object() in that proxy - * targets are not accepted. - * Only the glGetTexLevelParameter() functions accept proxy targets. - */ -static struct gl_texture_object * -get_texobj(struct gl_context *ctx, GLenum target, GLboolean get) -{ - struct gl_texture_unit *texUnit; - - if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "gl%sTexParameter(current unit)", get ? "Get" : ""); - return NULL; - } - - texUnit = _mesa_get_current_tex_unit(ctx); - - switch (target) { - case GL_TEXTURE_1D: - return texUnit->CurrentTex[TEXTURE_1D_INDEX]; - case GL_TEXTURE_2D: - return texUnit->CurrentTex[TEXTURE_2D_INDEX]; - case GL_TEXTURE_3D: - return texUnit->CurrentTex[TEXTURE_3D_INDEX]; - case GL_TEXTURE_CUBE_MAP: - if (ctx->Extensions.ARB_texture_cube_map) { - return texUnit->CurrentTex[TEXTURE_CUBE_INDEX]; - } - break; - case GL_TEXTURE_RECTANGLE_NV: - if (ctx->Extensions.NV_texture_rectangle) { - return texUnit->CurrentTex[TEXTURE_RECT_INDEX]; - } - break; - case GL_TEXTURE_1D_ARRAY_EXT: - if (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array) { - return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX]; - } - break; - case GL_TEXTURE_2D_ARRAY_EXT: - if (ctx->Extensions.MESA_texture_array || - ctx->Extensions.EXT_texture_array) { - return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX]; - } - break; - default: - ; - } - - _mesa_error(ctx, GL_INVALID_ENUM, - "gl%sTexParameter(target)", get ? "Get" : ""); - return NULL; -} - - -/** - * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE. - * \return -1 if error. - */ -static GLint -comp_to_swizzle(GLenum comp) -{ - switch (comp) { - case GL_RED: - return SWIZZLE_X; - case GL_GREEN: - return SWIZZLE_Y; - case GL_BLUE: - return SWIZZLE_Z; - case GL_ALPHA: - return SWIZZLE_W; - case GL_ZERO: - return SWIZZLE_ZERO; - case GL_ONE: - return SWIZZLE_ONE; - default: - return -1; - } -} - - -static void -set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz) -{ - ASSERT(comp < 4); - ASSERT(swz <= SWIZZLE_NIL); - { - GLuint mask = 0x7 << (3 * comp); - GLuint s = (*swizzle & ~mask) | (swz << (3 * comp)); - *swizzle = s; - } -} - - -/** - * This is called just prior to changing any texture object state which - * will not effect texture completeness. - */ -static INLINE void -flush(struct gl_context *ctx) -{ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); -} - - -/** - * This is called just prior to changing any texture object state which - * can effect texture completeness (texture base level, max level, - * minification filter). - * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE - * state flag and then mark the texture object as 'incomplete' so that any - * per-texture derived state gets recomputed. - */ -static INLINE void -incomplete(struct gl_context *ctx, struct gl_texture_object *texObj) -{ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - texObj->_Complete = GL_FALSE; -} - - -/** - * Set an integer-valued texture parameter - * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise - */ -static GLboolean -set_tex_parameteri(struct gl_context *ctx, - struct gl_texture_object *texObj, - GLenum pname, const GLint *params) -{ - switch (pname) { - case GL_TEXTURE_MIN_FILTER: - if (texObj->Sampler.MinFilter == params[0]) - return GL_FALSE; - switch (params[0]) { - case GL_NEAREST: - case GL_LINEAR: - incomplete(ctx, texObj); - texObj->Sampler.MinFilter = params[0]; - return GL_TRUE; - case GL_NEAREST_MIPMAP_NEAREST: - case GL_LINEAR_MIPMAP_NEAREST: - case GL_NEAREST_MIPMAP_LINEAR: - case GL_LINEAR_MIPMAP_LINEAR: - if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) { - incomplete(ctx, texObj); - texObj->Sampler.MinFilter = params[0]; - return GL_TRUE; - } - /* fall-through */ - default: - goto invalid_param; - } - return GL_FALSE; - - case GL_TEXTURE_MAG_FILTER: - if (texObj->Sampler.MagFilter == params[0]) - return GL_FALSE; - switch (params[0]) { - case GL_NEAREST: - case GL_LINEAR: - flush(ctx); /* does not effect completeness */ - texObj->Sampler.MagFilter = params[0]; - return GL_TRUE; - default: - goto invalid_param; - } - return GL_FALSE; - - case GL_TEXTURE_WRAP_S: - if (texObj->Sampler.WrapS == params[0]) - return GL_FALSE; - if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { - flush(ctx); - texObj->Sampler.WrapS = params[0]; - return GL_TRUE; - } - return GL_FALSE; - - case GL_TEXTURE_WRAP_T: - if (texObj->Sampler.WrapT == params[0]) - return GL_FALSE; - if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { - flush(ctx); - texObj->Sampler.WrapT = params[0]; - return GL_TRUE; - } - return GL_FALSE; - - case GL_TEXTURE_WRAP_R: - if (texObj->Sampler.WrapR == params[0]) - return GL_FALSE; - if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { - flush(ctx); - texObj->Sampler.WrapR = params[0]; - return GL_TRUE; - } - return GL_FALSE; - - case GL_TEXTURE_BASE_LEVEL: - if (texObj->BaseLevel == params[0]) - return GL_FALSE; - if (params[0] < 0 || - (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glTexParameter(param=%d)", params[0]); - return GL_FALSE; - } - incomplete(ctx, texObj); - texObj->BaseLevel = params[0]; - return GL_TRUE; - - case GL_TEXTURE_MAX_LEVEL: - if (texObj->MaxLevel == params[0]) - return GL_FALSE; - if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexParameter(param=%d)", params[0]); - return GL_FALSE; - } - incomplete(ctx, texObj); - texObj->MaxLevel = params[0]; - return GL_TRUE; - - case GL_GENERATE_MIPMAP_SGIS: - if (texObj->GenerateMipmap != params[0]) { - /* no flush() */ - texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; - return GL_TRUE; - } - return GL_FALSE; - - case GL_TEXTURE_COMPARE_MODE_ARB: - if (ctx->Extensions.ARB_shadow) { - if (texObj->Sampler.CompareMode == params[0]) - return GL_FALSE; - if (params[0] == GL_NONE || - params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) { - flush(ctx); - texObj->Sampler.CompareMode = params[0]; - return GL_TRUE; - } - goto invalid_param; - } - goto invalid_pname; - - case GL_TEXTURE_COMPARE_FUNC_ARB: - if (ctx->Extensions.ARB_shadow) { - if (texObj->Sampler.CompareFunc == params[0]) - return GL_FALSE; - switch (params[0]) { - case GL_LEQUAL: - case GL_GEQUAL: - flush(ctx); - texObj->Sampler.CompareFunc = params[0]; - return GL_TRUE; - case GL_EQUAL: - case GL_NOTEQUAL: - case GL_LESS: - case GL_GREATER: - case GL_ALWAYS: - case GL_NEVER: - if (ctx->Extensions.EXT_shadow_funcs) { - flush(ctx); - texObj->Sampler.CompareFunc = params[0]; - return GL_TRUE; - } - /* fall-through */ - default: - goto invalid_param; - } - } - goto invalid_pname; - - case GL_DEPTH_TEXTURE_MODE_ARB: - if (ctx->Extensions.ARB_depth_texture) { - if (texObj->Sampler.DepthMode == params[0]) - return GL_FALSE; - if (params[0] == GL_LUMINANCE || - params[0] == GL_INTENSITY || - params[0] == GL_ALPHA || - (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) { - flush(ctx); - texObj->Sampler.DepthMode = params[0]; - return GL_TRUE; - } - goto invalid_param; - } - goto invalid_pname; - -#if FEATURE_OES_draw_texture - case GL_TEXTURE_CROP_RECT_OES: - texObj->CropRect[0] = params[0]; - texObj->CropRect[1] = params[1]; - texObj->CropRect[2] = params[2]; - texObj->CropRect[3] = params[3]; - return GL_TRUE; -#endif - - case GL_TEXTURE_SWIZZLE_R_EXT: - case GL_TEXTURE_SWIZZLE_G_EXT: - case GL_TEXTURE_SWIZZLE_B_EXT: - case GL_TEXTURE_SWIZZLE_A_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; - const GLint swz = comp_to_swizzle(params[0]); - if (swz < 0) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexParameter(swizzle 0x%x)", params[0]); - return GL_FALSE; - } - ASSERT(comp < 4); - if (swz >= 0) { - flush(ctx); - texObj->Swizzle[comp] = params[0]; - set_swizzle_component(&texObj->_Swizzle, comp, swz); - return GL_TRUE; - } - } - goto invalid_pname; - - case GL_TEXTURE_SWIZZLE_RGBA_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - GLuint comp; - flush(ctx); - for (comp = 0; comp < 4; comp++) { - const GLint swz = comp_to_swizzle(params[comp]); - if (swz >= 0) { - texObj->Swizzle[comp] = params[comp]; - set_swizzle_component(&texObj->_Swizzle, comp, swz); - } - else { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glTexParameter(swizzle 0x%x)", params[comp]); - return GL_FALSE; - } - } - return GL_TRUE; - } - goto invalid_pname; - - case GL_TEXTURE_SRGB_DECODE_EXT: - if (ctx->Extensions.EXT_texture_sRGB_decode) { - GLenum decode = params[0]; - if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) { - if (texObj->Sampler.sRGBDecode != decode) { - flush(ctx); - texObj->Sampler.sRGBDecode = decode; - _mesa_update_fetch_functions(texObj); - } - return GL_TRUE; - } - } - goto invalid_pname; - - default: - goto invalid_pname; - } - -invalid_pname: - _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)", - _mesa_lookup_enum_by_nr(pname)); - return GL_FALSE; - -invalid_param: - _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)", - _mesa_lookup_enum_by_nr(params[0])); - return GL_FALSE; -} - - -/** - * Set a float-valued texture parameter - * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise - */ -static GLboolean -set_tex_parameterf(struct gl_context *ctx, - struct gl_texture_object *texObj, - GLenum pname, const GLfloat *params) -{ - switch (pname) { - case GL_TEXTURE_MIN_LOD: - if (texObj->Sampler.MinLod == params[0]) - return GL_FALSE; - flush(ctx); - texObj->Sampler.MinLod = params[0]; - return GL_TRUE; - - case GL_TEXTURE_MAX_LOD: - if (texObj->Sampler.MaxLod == params[0]) - return GL_FALSE; - flush(ctx); - texObj->Sampler.MaxLod = params[0]; - return GL_TRUE; - - case GL_TEXTURE_PRIORITY: - flush(ctx); - texObj->Priority = CLAMP(params[0], 0.0F, 1.0F); - return GL_TRUE; - - case GL_TEXTURE_MAX_ANISOTROPY_EXT: - if (ctx->Extensions.EXT_texture_filter_anisotropic) { - if (texObj->Sampler.MaxAnisotropy == params[0]) - return GL_FALSE; - if (params[0] < 1.0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); - return GL_FALSE; - } - flush(ctx); - /* clamp to max, that's what NVIDIA does */ - texObj->Sampler.MaxAnisotropy = MIN2(params[0], - ctx->Const.MaxTextureMaxAnisotropy); - return GL_TRUE; - } - else { - static GLuint count = 0; - if (count++ < 10) - _mesa_error(ctx, GL_INVALID_ENUM, - "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)"); - } - return GL_FALSE; - - case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: - if (ctx->Extensions.ARB_shadow_ambient) { - if (texObj->Sampler.CompareFailValue != params[0]) { - flush(ctx); - texObj->Sampler.CompareFailValue = CLAMP(params[0], 0.0F, 1.0F); - return GL_TRUE; - } - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)"); - } - return GL_FALSE; - - case GL_TEXTURE_LOD_BIAS: - /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */ - if (ctx->Extensions.EXT_texture_lod_bias) { - if (texObj->Sampler.LodBias != params[0]) { - flush(ctx); - texObj->Sampler.LodBias = params[0]; - return GL_TRUE; - } - return GL_FALSE; - } - break; - - case GL_TEXTURE_BORDER_COLOR: - flush(ctx); - /* ARB_texture_float disables clamping */ - if (ctx->Extensions.ARB_texture_float) { - texObj->Sampler.BorderColor.f[RCOMP] = params[0]; - texObj->Sampler.BorderColor.f[GCOMP] = params[1]; - texObj->Sampler.BorderColor.f[BCOMP] = params[2]; - texObj->Sampler.BorderColor.f[ACOMP] = params[3]; - } else { - texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F); - texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F); - texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F); - texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F); - } - return GL_TRUE; - - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); - } - return GL_FALSE; -} - - -void GLAPIENTRY -_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param) -{ - GLboolean need_update; - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_MIN_FILTER: - case GL_TEXTURE_MAG_FILTER: - case GL_TEXTURE_WRAP_S: - case GL_TEXTURE_WRAP_T: - case GL_TEXTURE_WRAP_R: - case GL_TEXTURE_BASE_LEVEL: - case GL_TEXTURE_MAX_LEVEL: - case GL_GENERATE_MIPMAP_SGIS: - case GL_TEXTURE_COMPARE_MODE_ARB: - case GL_TEXTURE_COMPARE_FUNC_ARB: - case GL_DEPTH_TEXTURE_MODE_ARB: - case GL_TEXTURE_SRGB_DECODE_EXT: - { - /* convert float param to int */ - GLint p[4]; - p[0] = (GLint) param; - p[1] = p[2] = p[3] = 0; - need_update = set_tex_parameteri(ctx, texObj, pname, p); - } - break; - default: - { - /* this will generate an error if pname is illegal */ - GLfloat p[4]; - p[0] = param; - p[1] = p[2] = p[3] = 0.0F; - need_update = set_tex_parameterf(ctx, texObj, pname, p); - } - } - - if (ctx->Driver.TexParameter && need_update) { - ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m); - } -} - - -void GLAPIENTRY -_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) -{ - GLboolean need_update; - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_MIN_FILTER: - case GL_TEXTURE_MAG_FILTER: - case GL_TEXTURE_WRAP_S: - case GL_TEXTURE_WRAP_T: - case GL_TEXTURE_WRAP_R: - case GL_TEXTURE_BASE_LEVEL: - case GL_TEXTURE_MAX_LEVEL: - case GL_GENERATE_MIPMAP_SGIS: - case GL_TEXTURE_COMPARE_MODE_ARB: - case GL_TEXTURE_COMPARE_FUNC_ARB: - case GL_DEPTH_TEXTURE_MODE_ARB: - case GL_TEXTURE_SRGB_DECODE_EXT: - { - /* convert float param to int */ - GLint p[4]; - p[0] = (GLint) params[0]; - p[1] = p[2] = p[3] = 0; - need_update = set_tex_parameteri(ctx, texObj, pname, p); - } - break; - -#if FEATURE_OES_draw_texture - case GL_TEXTURE_CROP_RECT_OES: - { - /* convert float params to int */ - GLint iparams[4]; - iparams[0] = (GLint) params[0]; - iparams[1] = (GLint) params[1]; - iparams[2] = (GLint) params[2]; - iparams[3] = (GLint) params[3]; - need_update = set_tex_parameteri(ctx, texObj, pname, iparams); - } - break; -#endif - - default: - /* this will generate an error if pname is illegal */ - need_update = set_tex_parameterf(ctx, texObj, pname, params); - } - - if (ctx->Driver.TexParameter && need_update) { - ctx->Driver.TexParameter(ctx, target, texObj, pname, params); - } -} - - -void GLAPIENTRY -_mesa_TexParameteri(GLenum target, GLenum pname, GLint param) -{ - GLboolean need_update; - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_MIN_LOD: - case GL_TEXTURE_MAX_LOD: - case GL_TEXTURE_PRIORITY: - case GL_TEXTURE_MAX_ANISOTROPY_EXT: - case GL_TEXTURE_LOD_BIAS: - case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: - { - GLfloat fparam[4]; - fparam[0] = (GLfloat) param; - fparam[1] = fparam[2] = fparam[3] = 0.0F; - /* convert int param to float */ - need_update = set_tex_parameterf(ctx, texObj, pname, fparam); - } - break; - default: - /* this will generate an error if pname is illegal */ - { - GLint iparam[4]; - iparam[0] = param; - iparam[1] = iparam[2] = iparam[3] = 0; - need_update = set_tex_parameteri(ctx, texObj, pname, iparam); - } - } - - if (ctx->Driver.TexParameter && need_update) { - GLfloat fparam = (GLfloat) param; - ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam); - } -} - - -void GLAPIENTRY -_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params) -{ - GLboolean need_update; - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_BORDER_COLOR: - { - /* convert int params to float */ - GLfloat fparams[4]; - fparams[0] = INT_TO_FLOAT(params[0]); - fparams[1] = INT_TO_FLOAT(params[1]); - fparams[2] = INT_TO_FLOAT(params[2]); - fparams[3] = INT_TO_FLOAT(params[3]); - need_update = set_tex_parameterf(ctx, texObj, pname, fparams); - } - break; - case GL_TEXTURE_MIN_LOD: - case GL_TEXTURE_MAX_LOD: - case GL_TEXTURE_PRIORITY: - case GL_TEXTURE_MAX_ANISOTROPY_EXT: - case GL_TEXTURE_LOD_BIAS: - case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: - { - /* convert int param to float */ - GLfloat fparams[4]; - fparams[0] = (GLfloat) params[0]; - fparams[1] = fparams[2] = fparams[3] = 0.0F; - need_update = set_tex_parameterf(ctx, texObj, pname, fparams); - } - break; - default: - /* this will generate an error if pname is illegal */ - need_update = set_tex_parameteri(ctx, texObj, pname, params); - } - - if (ctx->Driver.TexParameter && need_update) { - GLfloat fparams[4]; - fparams[0] = INT_TO_FLOAT(params[0]); - if (pname == GL_TEXTURE_BORDER_COLOR || - pname == GL_TEXTURE_CROP_RECT_OES) { - fparams[1] = INT_TO_FLOAT(params[1]); - fparams[2] = INT_TO_FLOAT(params[2]); - fparams[3] = INT_TO_FLOAT(params[3]); - } - ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams); - } -} - - -/** - * Set tex parameter to integer value(s). Primarily intended to set - * integer-valued texture border color (for integer-valued textures). - * New in GL 3.0. - */ -void GLAPIENTRY -_mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_BORDER_COLOR: - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - /* set the integer-valued border color */ - COPY_4V(texObj->Sampler.BorderColor.i, params); - break; - default: - _mesa_TexParameteriv(target, pname, params); - break; - } - /* XXX no driver hook for TexParameterIiv() yet */ -} - - -/** - * Set tex parameter to unsigned integer value(s). Primarily intended to set - * uint-valued texture border color (for integer-valued textures). - * New in GL 3.0 - */ -void GLAPIENTRY -_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_FALSE); - if (!texObj) - return; - - switch (pname) { - case GL_TEXTURE_BORDER_COLOR: - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - /* set the unsigned integer-valued border color */ - COPY_4V(texObj->Sampler.BorderColor.ui, params); - break; - default: - _mesa_TexParameteriv(target, pname, (const GLint *) params); - break; - } - /* XXX no driver hook for TexParameterIuiv() yet */ -} - - - - -void GLAPIENTRY -_mesa_GetTexLevelParameterfv( GLenum target, GLint level, - GLenum pname, GLfloat *params ) -{ - GLint iparam; - _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); - *params = (GLfloat) iparam; -} - - -void GLAPIENTRY -_mesa_GetTexLevelParameteriv( GLenum target, GLint level, - GLenum pname, GLint *params ) -{ - const struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; - const struct gl_texture_image *img = NULL; - GLint maxLevels; - gl_format texFormat; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetTexLevelParameteriv(current unit)"); - return; - } - - texUnit = _mesa_get_current_tex_unit(ctx); - - /* this will catch bad target values */ - maxLevels = _mesa_max_texture_levels(ctx, target); - if (maxLevels == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetTexLevelParameter[if]v(target=0x%x)", target); - return; - } - - if (level < 0 || level >= maxLevels) { - _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); - return; - } - - texObj = _mesa_select_tex_object(ctx, texUnit, target); - - img = _mesa_select_tex_image(ctx, texObj, target, level); - if (!img || !img->TexFormat) { - /* undefined texture image */ - if (pname == GL_TEXTURE_COMPONENTS) - *params = 1; - else - *params = 0; - return; - } - - texFormat = img->TexFormat; - - switch (pname) { - case GL_TEXTURE_WIDTH: - *params = img->Width; - break; - case GL_TEXTURE_HEIGHT: - *params = img->Height; - break; - case GL_TEXTURE_DEPTH: - *params = img->Depth; - break; - case GL_TEXTURE_INTERNAL_FORMAT: - if (_mesa_is_format_compressed(texFormat)) { - /* need to return the actual compressed format */ - *params = _mesa_compressed_format_to_glenum(ctx, texFormat); - } - else { - /* return the user's requested internal format */ - *params = img->InternalFormat; - } - break; - case GL_TEXTURE_BORDER: - *params = img->Border; - break; - case GL_TEXTURE_RED_SIZE: - if (img->_BaseFormat == GL_RED) { - *params = _mesa_get_format_bits(texFormat, pname); - break; - } - /* FALLTHROUGH */ - case GL_TEXTURE_GREEN_SIZE: - if (img->_BaseFormat == GL_RG) { - *params = _mesa_get_format_bits(texFormat, pname); - break; - } - /* FALLTHROUGH */ - case GL_TEXTURE_BLUE_SIZE: - if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) - *params = _mesa_get_format_bits(texFormat, pname); - else - *params = 0; - break; - case GL_TEXTURE_ALPHA_SIZE: - if (img->_BaseFormat == GL_ALPHA || - img->_BaseFormat == GL_LUMINANCE_ALPHA || - img->_BaseFormat == GL_RGBA) - *params = _mesa_get_format_bits(texFormat, pname); - else - *params = 0; - break; - case GL_TEXTURE_INTENSITY_SIZE: - if (img->_BaseFormat != GL_INTENSITY) - *params = 0; - else { - *params = _mesa_get_format_bits(texFormat, pname); - if (*params == 0) { - /* intensity probably stored as rgb texture */ - *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), - _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); - } - } - break; - case GL_TEXTURE_LUMINANCE_SIZE: - if (img->_BaseFormat != GL_LUMINANCE && - img->_BaseFormat != GL_LUMINANCE_ALPHA) - *params = 0; - else { - *params = _mesa_get_format_bits(texFormat, pname); - if (*params == 0) { - /* luminance probably stored as rgb texture */ - *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), - _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); - } - } - break; - case GL_TEXTURE_INDEX_SIZE_EXT: - if (img->_BaseFormat == GL_COLOR_INDEX) - *params = _mesa_get_format_bits(texFormat, pname); - else - *params = 0; - break; - case GL_TEXTURE_DEPTH_SIZE_ARB: - if (ctx->Extensions.ARB_depth_texture) - *params = _mesa_get_format_bits(texFormat, pname); - else - goto invalid_pname; - break; - case GL_TEXTURE_STENCIL_SIZE_EXT: - if (ctx->Extensions.EXT_packed_depth_stencil || - ctx->Extensions.ARB_framebuffer_object) { - *params = _mesa_get_format_bits(texFormat, pname); - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_SHARED_SIZE: - if (ctx->VersionMajor >= 3) { - /* XXX return number of exponent bits for shared exponent texture - * formats, like GL_RGB9_E5. - */ - *params = 0; - } - else { - goto invalid_pname; - } - break; - - /* GL_ARB_texture_compression */ - case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: - if (_mesa_is_format_compressed(texFormat) && - !_mesa_is_proxy_texture(target)) { - *params = _mesa_format_image_size(texFormat, img->Width, - img->Height, img->Depth); - } - else { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetTexLevelParameter[if]v(pname)"); - } - break; - case GL_TEXTURE_COMPRESSED: - *params = (GLint) _mesa_is_format_compressed(texFormat); - break; - - /* GL_ARB_texture_float */ - case GL_TEXTURE_RED_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_GREEN_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_BLUE_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_ALPHA_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_LUMINANCE_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_INTENSITY_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - case GL_TEXTURE_DEPTH_TYPE_ARB: - if (ctx->Extensions.ARB_texture_float) { - *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ? - _mesa_get_format_datatype(texFormat) : GL_NONE; - } - else { - goto invalid_pname; - } - break; - - default: - goto invalid_pname; - } - - /* no error if we get here */ - return; - -invalid_pname: - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetTexLevelParameter[if]v(pname=%s)", - _mesa_lookup_enum_by_nr(pname)); -} - - - -void GLAPIENTRY -_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) -{ - struct gl_texture_object *obj; - GLboolean error = GL_FALSE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - obj = get_texobj(ctx, target, GL_TRUE); - if (!obj) - return; - - _mesa_lock_texture(ctx, obj); - switch (pname) { - case GL_TEXTURE_MAG_FILTER: - *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter); - break; - case GL_TEXTURE_MIN_FILTER: - *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter); - break; - case GL_TEXTURE_WRAP_S: - *params = ENUM_TO_FLOAT(obj->Sampler.WrapS); - break; - case GL_TEXTURE_WRAP_T: - *params = ENUM_TO_FLOAT(obj->Sampler.WrapT); - break; - case GL_TEXTURE_WRAP_R: - *params = ENUM_TO_FLOAT(obj->Sampler.WrapR); - break; - case GL_TEXTURE_BORDER_COLOR: - if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP)) - _mesa_update_state_locked(ctx); - if(ctx->Color._ClampFragmentColor) - { - params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F); - params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F); - params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F); - params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F); - } - else - { - params[0] = obj->Sampler.BorderColor.f[0]; - params[1] = obj->Sampler.BorderColor.f[1]; - params[2] = obj->Sampler.BorderColor.f[2]; - params[3] = obj->Sampler.BorderColor.f[3]; - } - break; - case GL_TEXTURE_RESIDENT: - { - GLboolean resident; - if (ctx->Driver.IsTextureResident) - resident = ctx->Driver.IsTextureResident(ctx, obj); - else - resident = GL_TRUE; - *params = ENUM_TO_FLOAT(resident); - } - break; - case GL_TEXTURE_PRIORITY: - *params = obj->Priority; - break; - case GL_TEXTURE_MIN_LOD: - *params = obj->Sampler.MinLod; - break; - case GL_TEXTURE_MAX_LOD: - *params = obj->Sampler.MaxLod; - break; - case GL_TEXTURE_BASE_LEVEL: - *params = (GLfloat) obj->BaseLevel; - break; - case GL_TEXTURE_MAX_LEVEL: - *params = (GLfloat) obj->MaxLevel; - break; - case GL_TEXTURE_MAX_ANISOTROPY_EXT: - if (ctx->Extensions.EXT_texture_filter_anisotropic) { - *params = obj->Sampler.MaxAnisotropy; - } - else - error = GL_TRUE; - break; - case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: - if (ctx->Extensions.ARB_shadow_ambient) { - *params = obj->Sampler.CompareFailValue; - } - else - error = GL_TRUE; - break; - case GL_GENERATE_MIPMAP_SGIS: - *params = (GLfloat) obj->GenerateMipmap; - break; - case GL_TEXTURE_COMPARE_MODE_ARB: - if (ctx->Extensions.ARB_shadow) { - *params = (GLfloat) obj->Sampler.CompareMode; - } - else - error = GL_TRUE; - break; - case GL_TEXTURE_COMPARE_FUNC_ARB: - if (ctx->Extensions.ARB_shadow) { - *params = (GLfloat) obj->Sampler.CompareFunc; - } - else - error = GL_TRUE; - break; - case GL_DEPTH_TEXTURE_MODE_ARB: - if (ctx->Extensions.ARB_depth_texture) { - *params = (GLfloat) obj->Sampler.DepthMode; - } - else - error = GL_TRUE; - break; - case GL_TEXTURE_LOD_BIAS: - if (ctx->Extensions.EXT_texture_lod_bias) { - *params = obj->Sampler.LodBias; - } - else - error = GL_TRUE; - break; -#if FEATURE_OES_draw_texture - case GL_TEXTURE_CROP_RECT_OES: - params[0] = obj->CropRect[0]; - params[1] = obj->CropRect[1]; - params[2] = obj->CropRect[2]; - params[3] = obj->CropRect[3]; - break; -#endif - - case GL_TEXTURE_SWIZZLE_R_EXT: - case GL_TEXTURE_SWIZZLE_G_EXT: - case GL_TEXTURE_SWIZZLE_B_EXT: - case GL_TEXTURE_SWIZZLE_A_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; - *params = (GLfloat) obj->Swizzle[comp]; - } - else { - error = GL_TRUE; - } - break; - - case GL_TEXTURE_SWIZZLE_RGBA_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - GLuint comp; - for (comp = 0; comp < 4; comp++) { - params[comp] = (GLfloat) obj->Swizzle[comp]; - } - } - else { - error = GL_TRUE; - } - break; - - default: - error = GL_TRUE; - break; - } - - if (error) - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", - pname); - - _mesa_unlock_texture(ctx, obj); -} - - -void GLAPIENTRY -_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) -{ - struct gl_texture_object *obj; - GLboolean error = GL_FALSE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - obj = get_texobj(ctx, target, GL_TRUE); - if (!obj) - return; - - _mesa_lock_texture(ctx, obj); - switch (pname) { - case GL_TEXTURE_MAG_FILTER: - *params = (GLint) obj->Sampler.MagFilter; - break;; - case GL_TEXTURE_MIN_FILTER: - *params = (GLint) obj->Sampler.MinFilter; - break;; - case GL_TEXTURE_WRAP_S: - *params = (GLint) obj->Sampler.WrapS; - break;; - case GL_TEXTURE_WRAP_T: - *params = (GLint) obj->Sampler.WrapT; - break;; - case GL_TEXTURE_WRAP_R: - *params = (GLint) obj->Sampler.WrapR; - break;; - case GL_TEXTURE_BORDER_COLOR: - { - GLfloat b[4]; - b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F); - b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F); - b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F); - b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F); - params[0] = FLOAT_TO_INT(b[0]); - params[1] = FLOAT_TO_INT(b[1]); - params[2] = FLOAT_TO_INT(b[2]); - params[3] = FLOAT_TO_INT(b[3]); - } - break;; - case GL_TEXTURE_RESIDENT: - { - GLboolean resident; - if (ctx->Driver.IsTextureResident) - resident = ctx->Driver.IsTextureResident(ctx, obj); - else - resident = GL_TRUE; - *params = (GLint) resident; - } - break;; - case GL_TEXTURE_PRIORITY: - *params = FLOAT_TO_INT(obj->Priority); - break;; - case GL_TEXTURE_MIN_LOD: - *params = (GLint) obj->Sampler.MinLod; - break;; - case GL_TEXTURE_MAX_LOD: - *params = (GLint) obj->Sampler.MaxLod; - break;; - case GL_TEXTURE_BASE_LEVEL: - *params = obj->BaseLevel; - break;; - case GL_TEXTURE_MAX_LEVEL: - *params = obj->MaxLevel; - break;; - case GL_TEXTURE_MAX_ANISOTROPY_EXT: - if (ctx->Extensions.EXT_texture_filter_anisotropic) { - *params = (GLint) obj->Sampler.MaxAnisotropy; - } - else { - error = GL_TRUE; - } - break; - case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: - if (ctx->Extensions.ARB_shadow_ambient) { - *params = (GLint) FLOAT_TO_INT(obj->Sampler.CompareFailValue); - } - else { - error = GL_TRUE; - } - break; - case GL_GENERATE_MIPMAP_SGIS: - *params = (GLint) obj->GenerateMipmap; - break; - case GL_TEXTURE_COMPARE_MODE_ARB: - if (ctx->Extensions.ARB_shadow) { - *params = (GLint) obj->Sampler.CompareMode; - } - else { - error = GL_TRUE; - } - break; - case GL_TEXTURE_COMPARE_FUNC_ARB: - if (ctx->Extensions.ARB_shadow) { - *params = (GLint) obj->Sampler.CompareFunc; - } - else { - error = GL_TRUE; - } - break; - case GL_DEPTH_TEXTURE_MODE_ARB: - if (ctx->Extensions.ARB_depth_texture) { - *params = (GLint) obj->Sampler.DepthMode; - } - else { - error = GL_TRUE; - } - break; - case GL_TEXTURE_LOD_BIAS: - if (ctx->Extensions.EXT_texture_lod_bias) { - *params = (GLint) obj->Sampler.LodBias; - } - else { - error = GL_TRUE; - } - break; -#if FEATURE_OES_draw_texture - case GL_TEXTURE_CROP_RECT_OES: - params[0] = obj->CropRect[0]; - params[1] = obj->CropRect[1]; - params[2] = obj->CropRect[2]; - params[3] = obj->CropRect[3]; - break; -#endif - case GL_TEXTURE_SWIZZLE_R_EXT: - case GL_TEXTURE_SWIZZLE_G_EXT: - case GL_TEXTURE_SWIZZLE_B_EXT: - case GL_TEXTURE_SWIZZLE_A_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; - *params = obj->Swizzle[comp]; - } - else { - error = GL_TRUE; - } - break; - - case GL_TEXTURE_SWIZZLE_RGBA_EXT: - if (ctx->Extensions.EXT_texture_swizzle) { - COPY_4V(params, obj->Swizzle); - } - else { - error = GL_TRUE; - } - break; - - default: - ; /* silence warnings */ - } - - if (error) - _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", - pname); - - _mesa_unlock_texture(ctx, obj); -} - - -/** New in GL 3.0 */ -void GLAPIENTRY -_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_TRUE); - - switch (pname) { - case GL_TEXTURE_BORDER_COLOR: - COPY_4V(params, texObj->Sampler.BorderColor.i); - break; - default: - _mesa_GetTexParameteriv(target, pname, params); - } -} - - -/** New in GL 3.0 */ -void GLAPIENTRY -_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params) -{ - struct gl_texture_object *texObj; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - texObj = get_texobj(ctx, target, GL_TRUE); - - switch (pname) { - case GL_TEXTURE_BORDER_COLOR: - COPY_4V(params, texObj->Sampler.BorderColor.i); - break; - default: - { - GLint ip[4]; - _mesa_GetTexParameteriv(target, pname, ip); - params[0] = ip[0]; - if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT || - pname == GL_TEXTURE_CROP_RECT_OES) { - params[1] = ip[1]; - params[2] = ip[2]; - params[3] = ip[3]; - } - } - } -} +/* + * 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 texparam.c + * + * glTexParameter-related functions + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/enums.h" +#include "main/formats.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/state.h" +#include "main/texcompress.h" +#include "main/texparam.h" +#include "main/teximage.h" +#include "main/texstate.h" +#include "main/texfetch.h" +#include "program/prog_instruction.h" + + +/** + * Check if a coordinate wrap mode is supported for the texture target. + * \return GL_TRUE if legal, GL_FALSE otherwise + */ +static GLboolean +validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap) +{ + const struct gl_extensions * const e = & ctx->Extensions; + + if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || + (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { + /* any texture target */ + return GL_TRUE; + } + else if (target != GL_TEXTURE_RECTANGLE_NV && + (wrap == GL_REPEAT || + (wrap == GL_MIRRORED_REPEAT && + e->ARB_texture_mirrored_repeat) || + (wrap == GL_MIRROR_CLAMP_EXT && + (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || + (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && + (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || + (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT && + (e->EXT_texture_mirror_clamp)))) { + /* non-rectangle texture */ + return GL_TRUE; + } + + _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap ); + return GL_FALSE; +} + + +/** + * Get current texture object for given target. + * Return NULL if any error (and record the error). + * Note that this is different from _mesa_select_tex_object() in that proxy + * targets are not accepted. + * Only the glGetTexLevelParameter() functions accept proxy targets. + */ +static struct gl_texture_object * +get_texobj(struct gl_context *ctx, GLenum target, GLboolean get) +{ + struct gl_texture_unit *texUnit; + + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "gl%sTexParameter(current unit)", get ? "Get" : ""); + return NULL; + } + + texUnit = _mesa_get_current_tex_unit(ctx); + + switch (target) { + case GL_TEXTURE_1D: + return texUnit->CurrentTex[TEXTURE_1D_INDEX]; + case GL_TEXTURE_2D: + return texUnit->CurrentTex[TEXTURE_2D_INDEX]; + case GL_TEXTURE_3D: + return texUnit->CurrentTex[TEXTURE_3D_INDEX]; + case GL_TEXTURE_CUBE_MAP: + if (ctx->Extensions.ARB_texture_cube_map) { + return texUnit->CurrentTex[TEXTURE_CUBE_INDEX]; + } + break; + case GL_TEXTURE_RECTANGLE_NV: + if (ctx->Extensions.NV_texture_rectangle) { + return texUnit->CurrentTex[TEXTURE_RECT_INDEX]; + } + break; + case GL_TEXTURE_1D_ARRAY_EXT: + if (ctx->Extensions.MESA_texture_array || + ctx->Extensions.EXT_texture_array) { + return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX]; + } + break; + case GL_TEXTURE_2D_ARRAY_EXT: + if (ctx->Extensions.MESA_texture_array || + ctx->Extensions.EXT_texture_array) { + return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX]; + } + break; + default: + ; + } + + _mesa_error(ctx, GL_INVALID_ENUM, + "gl%sTexParameter(target)", get ? "Get" : ""); + return NULL; +} + + +/** + * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE. + * \return -1 if error. + */ +static GLint +comp_to_swizzle(GLenum comp) +{ + switch (comp) { + case GL_RED: + return SWIZZLE_X; + case GL_GREEN: + return SWIZZLE_Y; + case GL_BLUE: + return SWIZZLE_Z; + case GL_ALPHA: + return SWIZZLE_W; + case GL_ZERO: + return SWIZZLE_ZERO; + case GL_ONE: + return SWIZZLE_ONE; + default: + return -1; + } +} + + +static void +set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz) +{ + ASSERT(comp < 4); + ASSERT(swz <= SWIZZLE_NIL); + { + GLuint mask = 0x7 << (3 * comp); + GLuint s = (*swizzle & ~mask) | (swz << (3 * comp)); + *swizzle = s; + } +} + + +/** + * This is called just prior to changing any texture object state which + * will not effect texture completeness. + */ +static INLINE void +flush(struct gl_context *ctx) +{ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); +} + + +/** + * This is called just prior to changing any texture object state which + * can effect texture completeness (texture base level, max level, + * minification filter). + * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE + * state flag and then mark the texture object as 'incomplete' so that any + * per-texture derived state gets recomputed. + */ +static INLINE void +incomplete(struct gl_context *ctx, struct gl_texture_object *texObj) +{ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texObj->_Complete = GL_FALSE; +} + + +/** + * Set an integer-valued texture parameter + * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise + */ +static GLboolean +set_tex_parameteri(struct gl_context *ctx, + struct gl_texture_object *texObj, + GLenum pname, const GLint *params) +{ + switch (pname) { + case GL_TEXTURE_MIN_FILTER: + if (texObj->Sampler.MinFilter == params[0]) + return GL_FALSE; + switch (params[0]) { + case GL_NEAREST: + case GL_LINEAR: + incomplete(ctx, texObj); + texObj->Sampler.MinFilter = params[0]; + return GL_TRUE; + case GL_NEAREST_MIPMAP_NEAREST: + case GL_LINEAR_MIPMAP_NEAREST: + case GL_NEAREST_MIPMAP_LINEAR: + case GL_LINEAR_MIPMAP_LINEAR: + if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) { + incomplete(ctx, texObj); + texObj->Sampler.MinFilter = params[0]; + return GL_TRUE; + } + /* fall-through */ + default: + goto invalid_param; + } + return GL_FALSE; + + case GL_TEXTURE_MAG_FILTER: + if (texObj->Sampler.MagFilter == params[0]) + return GL_FALSE; + switch (params[0]) { + case GL_NEAREST: + case GL_LINEAR: + flush(ctx); /* does not effect completeness */ + texObj->Sampler.MagFilter = params[0]; + return GL_TRUE; + default: + goto invalid_param; + } + return GL_FALSE; + + case GL_TEXTURE_WRAP_S: + if (texObj->Sampler.WrapS == params[0]) + return GL_FALSE; + if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { + flush(ctx); + texObj->Sampler.WrapS = params[0]; + return GL_TRUE; + } + return GL_FALSE; + + case GL_TEXTURE_WRAP_T: + if (texObj->Sampler.WrapT == params[0]) + return GL_FALSE; + if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { + flush(ctx); + texObj->Sampler.WrapT = params[0]; + return GL_TRUE; + } + return GL_FALSE; + + case GL_TEXTURE_WRAP_R: + if (texObj->Sampler.WrapR == params[0]) + return GL_FALSE; + if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { + flush(ctx); + texObj->Sampler.WrapR = params[0]; + return GL_TRUE; + } + return GL_FALSE; + + case GL_TEXTURE_BASE_LEVEL: + if (texObj->BaseLevel == params[0]) + return GL_FALSE; + if (params[0] < 0 || + (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glTexParameter(param=%d)", params[0]); + return GL_FALSE; + } + incomplete(ctx, texObj); + texObj->BaseLevel = params[0]; + return GL_TRUE; + + case GL_TEXTURE_MAX_LEVEL: + if (texObj->MaxLevel == params[0]) + return GL_FALSE; + if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTexParameter(param=%d)", params[0]); + return GL_FALSE; + } + incomplete(ctx, texObj); + texObj->MaxLevel = params[0]; + return GL_TRUE; + + case GL_GENERATE_MIPMAP_SGIS: + if (texObj->GenerateMipmap != params[0]) { + /* no flush() */ + texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; + return GL_TRUE; + } + return GL_FALSE; + + case GL_TEXTURE_COMPARE_MODE_ARB: + if (ctx->Extensions.ARB_shadow) { + if (texObj->Sampler.CompareMode == params[0]) + return GL_FALSE; + if (params[0] == GL_NONE || + params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) { + flush(ctx); + texObj->Sampler.CompareMode = params[0]; + return GL_TRUE; + } + goto invalid_param; + } + goto invalid_pname; + + case GL_TEXTURE_COMPARE_FUNC_ARB: + if (ctx->Extensions.ARB_shadow) { + if (texObj->Sampler.CompareFunc == params[0]) + return GL_FALSE; + switch (params[0]) { + case GL_LEQUAL: + case GL_GEQUAL: + flush(ctx); + texObj->Sampler.CompareFunc = params[0]; + return GL_TRUE; + case GL_EQUAL: + case GL_NOTEQUAL: + case GL_LESS: + case GL_GREATER: + case GL_ALWAYS: + case GL_NEVER: + if (ctx->Extensions.EXT_shadow_funcs) { + flush(ctx); + texObj->Sampler.CompareFunc = params[0]; + return GL_TRUE; + } + /* fall-through */ + default: + goto invalid_param; + } + } + goto invalid_pname; + + case GL_DEPTH_TEXTURE_MODE_ARB: + if (ctx->Extensions.ARB_depth_texture) { + if (texObj->Sampler.DepthMode == params[0]) + return GL_FALSE; + if (params[0] == GL_LUMINANCE || + params[0] == GL_INTENSITY || + params[0] == GL_ALPHA || + (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) { + flush(ctx); + texObj->Sampler.DepthMode = params[0]; + return GL_TRUE; + } + goto invalid_param; + } + goto invalid_pname; + +#if FEATURE_OES_draw_texture + case GL_TEXTURE_CROP_RECT_OES: + texObj->CropRect[0] = params[0]; + texObj->CropRect[1] = params[1]; + texObj->CropRect[2] = params[2]; + texObj->CropRect[3] = params[3]; + return GL_TRUE; +#endif + + case GL_TEXTURE_SWIZZLE_R_EXT: + case GL_TEXTURE_SWIZZLE_G_EXT: + case GL_TEXTURE_SWIZZLE_B_EXT: + case GL_TEXTURE_SWIZZLE_A_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; + const GLint swz = comp_to_swizzle(params[0]); + if (swz < 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTexParameter(swizzle 0x%x)", params[0]); + return GL_FALSE; + } + ASSERT(comp < 4); + if (swz >= 0) { + flush(ctx); + texObj->Swizzle[comp] = params[0]; + set_swizzle_component(&texObj->_Swizzle, comp, swz); + return GL_TRUE; + } + } + goto invalid_pname; + + case GL_TEXTURE_SWIZZLE_RGBA_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + GLuint comp; + flush(ctx); + for (comp = 0; comp < 4; comp++) { + const GLint swz = comp_to_swizzle(params[comp]); + if (swz >= 0) { + texObj->Swizzle[comp] = params[comp]; + set_swizzle_component(&texObj->_Swizzle, comp, swz); + } + else { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glTexParameter(swizzle 0x%x)", params[comp]); + return GL_FALSE; + } + } + return GL_TRUE; + } + goto invalid_pname; + + case GL_TEXTURE_SRGB_DECODE_EXT: + if (ctx->Extensions.EXT_texture_sRGB_decode) { + GLenum decode = params[0]; + if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) { + if (texObj->Sampler.sRGBDecode != decode) { + flush(ctx); + texObj->Sampler.sRGBDecode = decode; + _mesa_update_fetch_functions(texObj); + } + return GL_TRUE; + } + } + goto invalid_pname; + + default: + goto invalid_pname; + } + +invalid_pname: + _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); + return GL_FALSE; + +invalid_param: + _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)", + _mesa_lookup_enum_by_nr(params[0])); + return GL_FALSE; +} + + +/** + * Set a float-valued texture parameter + * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise + */ +static GLboolean +set_tex_parameterf(struct gl_context *ctx, + struct gl_texture_object *texObj, + GLenum pname, const GLfloat *params) +{ + switch (pname) { + case GL_TEXTURE_MIN_LOD: + if (texObj->Sampler.MinLod == params[0]) + return GL_FALSE; + flush(ctx); + texObj->Sampler.MinLod = params[0]; + return GL_TRUE; + + case GL_TEXTURE_MAX_LOD: + if (texObj->Sampler.MaxLod == params[0]) + return GL_FALSE; + flush(ctx); + texObj->Sampler.MaxLod = params[0]; + return GL_TRUE; + + case GL_TEXTURE_PRIORITY: + flush(ctx); + texObj->Priority = CLAMP(params[0], 0.0F, 1.0F); + return GL_TRUE; + + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + if (ctx->Extensions.EXT_texture_filter_anisotropic) { + if (texObj->Sampler.MaxAnisotropy == params[0]) + return GL_FALSE; + if (params[0] < 1.0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); + return GL_FALSE; + } + flush(ctx); + /* clamp to max, that's what NVIDIA does */ + texObj->Sampler.MaxAnisotropy = MIN2(params[0], + ctx->Const.MaxTextureMaxAnisotropy); + return GL_TRUE; + } + else { + static GLuint count = 0; + if (count++ < 10) + _mesa_error(ctx, GL_INVALID_ENUM, + "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)"); + } + return GL_FALSE; + + case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: + if (ctx->Extensions.ARB_shadow_ambient) { + if (texObj->Sampler.CompareFailValue != params[0]) { + flush(ctx); + texObj->Sampler.CompareFailValue = CLAMP(params[0], 0.0F, 1.0F); + return GL_TRUE; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)"); + } + return GL_FALSE; + + case GL_TEXTURE_LOD_BIAS: + /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */ + if (ctx->Extensions.EXT_texture_lod_bias) { + if (texObj->Sampler.LodBias != params[0]) { + flush(ctx); + texObj->Sampler.LodBias = params[0]; + return GL_TRUE; + } + return GL_FALSE; + } + break; + + case GL_TEXTURE_BORDER_COLOR: + flush(ctx); + /* ARB_texture_float disables clamping */ + if (ctx->Extensions.ARB_texture_float) { + texObj->Sampler.BorderColor.f[RCOMP] = params[0]; + texObj->Sampler.BorderColor.f[GCOMP] = params[1]; + texObj->Sampler.BorderColor.f[BCOMP] = params[2]; + texObj->Sampler.BorderColor.f[ACOMP] = params[3]; + } else { + texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F); + texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F); + texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F); + texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F); + } + return GL_TRUE; + + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); + } + return GL_FALSE; +} + + +void GLAPIENTRY +_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param) +{ + GLboolean need_update; + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_MIN_FILTER: + case GL_TEXTURE_MAG_FILTER: + case GL_TEXTURE_WRAP_S: + case GL_TEXTURE_WRAP_T: + case GL_TEXTURE_WRAP_R: + case GL_TEXTURE_BASE_LEVEL: + case GL_TEXTURE_MAX_LEVEL: + case GL_GENERATE_MIPMAP_SGIS: + case GL_TEXTURE_COMPARE_MODE_ARB: + case GL_TEXTURE_COMPARE_FUNC_ARB: + case GL_DEPTH_TEXTURE_MODE_ARB: + case GL_TEXTURE_SRGB_DECODE_EXT: + { + /* convert float param to int */ + GLint p[4]; + p[0] = (GLint) param; + p[1] = p[2] = p[3] = 0; + need_update = set_tex_parameteri(ctx, texObj, pname, p); + } + break; + default: + { + /* this will generate an error if pname is illegal */ + GLfloat p[4]; + p[0] = param; + p[1] = p[2] = p[3] = 0.0F; + need_update = set_tex_parameterf(ctx, texObj, pname, p); + } + } + + if (ctx->Driver.TexParameter && need_update) { + ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m); + } +} + + +void GLAPIENTRY +_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) +{ + GLboolean need_update; + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_MIN_FILTER: + case GL_TEXTURE_MAG_FILTER: + case GL_TEXTURE_WRAP_S: + case GL_TEXTURE_WRAP_T: + case GL_TEXTURE_WRAP_R: + case GL_TEXTURE_BASE_LEVEL: + case GL_TEXTURE_MAX_LEVEL: + case GL_GENERATE_MIPMAP_SGIS: + case GL_TEXTURE_COMPARE_MODE_ARB: + case GL_TEXTURE_COMPARE_FUNC_ARB: + case GL_DEPTH_TEXTURE_MODE_ARB: + case GL_TEXTURE_SRGB_DECODE_EXT: + { + /* convert float param to int */ + GLint p[4]; + p[0] = (GLint) params[0]; + p[1] = p[2] = p[3] = 0; + need_update = set_tex_parameteri(ctx, texObj, pname, p); + } + break; + +#if FEATURE_OES_draw_texture + case GL_TEXTURE_CROP_RECT_OES: + { + /* convert float params to int */ + GLint iparams[4]; + iparams[0] = (GLint) params[0]; + iparams[1] = (GLint) params[1]; + iparams[2] = (GLint) params[2]; + iparams[3] = (GLint) params[3]; + need_update = set_tex_parameteri(ctx, texObj, pname, iparams); + } + break; +#endif + + default: + /* this will generate an error if pname is illegal */ + need_update = set_tex_parameterf(ctx, texObj, pname, params); + } + + if (ctx->Driver.TexParameter && need_update) { + ctx->Driver.TexParameter(ctx, target, texObj, pname, params); + } +} + + +void GLAPIENTRY +_mesa_TexParameteri(GLenum target, GLenum pname, GLint param) +{ + GLboolean need_update; + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_MIN_LOD: + case GL_TEXTURE_MAX_LOD: + case GL_TEXTURE_PRIORITY: + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + case GL_TEXTURE_LOD_BIAS: + case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: + { + GLfloat fparam[4]; + fparam[0] = (GLfloat) param; + fparam[1] = fparam[2] = fparam[3] = 0.0F; + /* convert int param to float */ + need_update = set_tex_parameterf(ctx, texObj, pname, fparam); + } + break; + default: + /* this will generate an error if pname is illegal */ + { + GLint iparam[4]; + iparam[0] = param; + iparam[1] = iparam[2] = iparam[3] = 0; + need_update = set_tex_parameteri(ctx, texObj, pname, iparam); + } + } + + if (ctx->Driver.TexParameter && need_update) { + GLfloat fparam = (GLfloat) param; + ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam); + } +} + + +void GLAPIENTRY +_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params) +{ + GLboolean need_update; + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_BORDER_COLOR: + { + /* convert int params to float */ + GLfloat fparams[4]; + fparams[0] = INT_TO_FLOAT(params[0]); + fparams[1] = INT_TO_FLOAT(params[1]); + fparams[2] = INT_TO_FLOAT(params[2]); + fparams[3] = INT_TO_FLOAT(params[3]); + need_update = set_tex_parameterf(ctx, texObj, pname, fparams); + } + break; + case GL_TEXTURE_MIN_LOD: + case GL_TEXTURE_MAX_LOD: + case GL_TEXTURE_PRIORITY: + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + case GL_TEXTURE_LOD_BIAS: + case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: + { + /* convert int param to float */ + GLfloat fparams[4]; + fparams[0] = (GLfloat) params[0]; + fparams[1] = fparams[2] = fparams[3] = 0.0F; + need_update = set_tex_parameterf(ctx, texObj, pname, fparams); + } + break; + default: + /* this will generate an error if pname is illegal */ + need_update = set_tex_parameteri(ctx, texObj, pname, params); + } + + if (ctx->Driver.TexParameter && need_update) { + GLfloat fparams[4]; + fparams[0] = INT_TO_FLOAT(params[0]); + if (pname == GL_TEXTURE_BORDER_COLOR || + pname == GL_TEXTURE_CROP_RECT_OES) { + fparams[1] = INT_TO_FLOAT(params[1]); + fparams[2] = INT_TO_FLOAT(params[2]); + fparams[3] = INT_TO_FLOAT(params[3]); + } + ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams); + } +} + + +/** + * Set tex parameter to integer value(s). Primarily intended to set + * integer-valued texture border color (for integer-valued textures). + * New in GL 3.0. + */ +void GLAPIENTRY +_mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params) +{ + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_BORDER_COLOR: + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + /* set the integer-valued border color */ + COPY_4V(texObj->Sampler.BorderColor.i, params); + break; + default: + _mesa_TexParameteriv(target, pname, params); + break; + } + /* XXX no driver hook for TexParameterIiv() yet */ +} + + +/** + * Set tex parameter to unsigned integer value(s). Primarily intended to set + * uint-valued texture border color (for integer-valued textures). + * New in GL 3.0 + */ +void GLAPIENTRY +_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params) +{ + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_FALSE); + if (!texObj) + return; + + switch (pname) { + case GL_TEXTURE_BORDER_COLOR: + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + /* set the unsigned integer-valued border color */ + COPY_4V(texObj->Sampler.BorderColor.ui, params); + break; + default: + _mesa_TexParameteriv(target, pname, (const GLint *) params); + break; + } + /* XXX no driver hook for TexParameterIuiv() yet */ +} + + + + +void GLAPIENTRY +_mesa_GetTexLevelParameterfv( GLenum target, GLint level, + GLenum pname, GLfloat *params ) +{ + GLint iparam; + _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); + *params = (GLfloat) iparam; +} + + +void GLAPIENTRY +_mesa_GetTexLevelParameteriv( GLenum target, GLint level, + GLenum pname, GLint *params ) +{ + const struct gl_texture_unit *texUnit; + struct gl_texture_object *texObj; + const struct gl_texture_image *img = NULL; + GLint maxLevels; + gl_format texFormat; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetTexLevelParameteriv(current unit)"); + return; + } + + texUnit = _mesa_get_current_tex_unit(ctx); + + /* this will catch bad target values */ + maxLevels = _mesa_max_texture_levels(ctx, target); + if (maxLevels == 0) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(target=0x%x)", target); + return; + } + + if (level < 0 || level >= maxLevels) { + _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); + return; + } + + texObj = _mesa_select_tex_object(ctx, texUnit, target); + + img = _mesa_select_tex_image(ctx, texObj, target, level); + if (!img || !img->TexFormat) { + /* undefined texture image */ + if (pname == GL_TEXTURE_COMPONENTS) + *params = 1; + else + *params = 0; + return; + } + + texFormat = img->TexFormat; + + switch (pname) { + case GL_TEXTURE_WIDTH: + *params = img->Width; + break; + case GL_TEXTURE_HEIGHT: + *params = img->Height; + break; + case GL_TEXTURE_DEPTH: + *params = img->Depth; + break; + case GL_TEXTURE_INTERNAL_FORMAT: + if (_mesa_is_format_compressed(texFormat)) { + /* need to return the actual compressed format */ + *params = _mesa_compressed_format_to_glenum(ctx, texFormat); + } + else { + /* return the user's requested internal format */ + *params = img->InternalFormat; + } + break; + case GL_TEXTURE_BORDER: + *params = img->Border; + break; + case GL_TEXTURE_RED_SIZE: + if (img->_BaseFormat == GL_RED) { + *params = _mesa_get_format_bits(texFormat, pname); + break; + } + /* FALLTHROUGH */ + case GL_TEXTURE_GREEN_SIZE: + if (img->_BaseFormat == GL_RG) { + *params = _mesa_get_format_bits(texFormat, pname); + break; + } + /* FALLTHROUGH */ + case GL_TEXTURE_BLUE_SIZE: + if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) + *params = _mesa_get_format_bits(texFormat, pname); + else + *params = 0; + break; + case GL_TEXTURE_ALPHA_SIZE: + if (img->_BaseFormat == GL_ALPHA || + img->_BaseFormat == GL_LUMINANCE_ALPHA || + img->_BaseFormat == GL_RGBA) + *params = _mesa_get_format_bits(texFormat, pname); + else + *params = 0; + break; + case GL_TEXTURE_INTENSITY_SIZE: + if (img->_BaseFormat != GL_INTENSITY) + *params = 0; + else { + *params = _mesa_get_format_bits(texFormat, pname); + if (*params == 0) { + /* intensity probably stored as rgb texture */ + *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), + _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); + } + } + break; + case GL_TEXTURE_LUMINANCE_SIZE: + if (img->_BaseFormat != GL_LUMINANCE && + img->_BaseFormat != GL_LUMINANCE_ALPHA) + *params = 0; + else { + *params = _mesa_get_format_bits(texFormat, pname); + if (*params == 0) { + /* luminance probably stored as rgb texture */ + *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE), + _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE)); + } + } + break; + case GL_TEXTURE_INDEX_SIZE_EXT: + if (img->_BaseFormat == GL_COLOR_INDEX) + *params = _mesa_get_format_bits(texFormat, pname); + else + *params = 0; + break; + case GL_TEXTURE_DEPTH_SIZE_ARB: + if (ctx->Extensions.ARB_depth_texture) + *params = _mesa_get_format_bits(texFormat, pname); + else + goto invalid_pname; + break; + case GL_TEXTURE_STENCIL_SIZE_EXT: + if (ctx->Extensions.EXT_packed_depth_stencil || + ctx->Extensions.ARB_framebuffer_object) { + *params = _mesa_get_format_bits(texFormat, pname); + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_SHARED_SIZE: + if (ctx->VersionMajor >= 3 || + ctx->Extensions.EXT_texture_shared_exponent) { + *params = texFormat == MESA_FORMAT_RGB9_E5_FLOAT ? 5 : 0; + } + else { + goto invalid_pname; + } + break; + + /* GL_ARB_texture_compression */ + case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: + if (_mesa_is_format_compressed(texFormat) && + !_mesa_is_proxy_texture(target)) { + *params = _mesa_format_image_size(texFormat, img->Width, + img->Height, img->Depth); + } + else { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetTexLevelParameter[if]v(pname)"); + } + break; + case GL_TEXTURE_COMPRESSED: + *params = (GLint) _mesa_is_format_compressed(texFormat); + break; + + /* GL_ARB_texture_float */ + case GL_TEXTURE_RED_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_GREEN_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_BLUE_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_ALPHA_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_LUMINANCE_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_INTENSITY_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + case GL_TEXTURE_DEPTH_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ? + _mesa_get_format_datatype(texFormat) : GL_NONE; + } + else { + goto invalid_pname; + } + break; + + default: + goto invalid_pname; + } + + /* no error if we get here */ + return; + +invalid_pname: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); +} + + + +void GLAPIENTRY +_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) +{ + struct gl_texture_object *obj; + GLboolean error = GL_FALSE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + obj = get_texobj(ctx, target, GL_TRUE); + if (!obj) + return; + + _mesa_lock_texture(ctx, obj); + switch (pname) { + case GL_TEXTURE_MAG_FILTER: + *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter); + break; + case GL_TEXTURE_MIN_FILTER: + *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter); + break; + case GL_TEXTURE_WRAP_S: + *params = ENUM_TO_FLOAT(obj->Sampler.WrapS); + break; + case GL_TEXTURE_WRAP_T: + *params = ENUM_TO_FLOAT(obj->Sampler.WrapT); + break; + case GL_TEXTURE_WRAP_R: + *params = ENUM_TO_FLOAT(obj->Sampler.WrapR); + break; + case GL_TEXTURE_BORDER_COLOR: + if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP)) + _mesa_update_state_locked(ctx); + if(ctx->Color._ClampFragmentColor) + { + params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F); + params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F); + params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F); + params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F); + } + else + { + params[0] = obj->Sampler.BorderColor.f[0]; + params[1] = obj->Sampler.BorderColor.f[1]; + params[2] = obj->Sampler.BorderColor.f[2]; + params[3] = obj->Sampler.BorderColor.f[3]; + } + break; + case GL_TEXTURE_RESIDENT: + { + GLboolean resident; + if (ctx->Driver.IsTextureResident) + resident = ctx->Driver.IsTextureResident(ctx, obj); + else + resident = GL_TRUE; + *params = ENUM_TO_FLOAT(resident); + } + break; + case GL_TEXTURE_PRIORITY: + *params = obj->Priority; + break; + case GL_TEXTURE_MIN_LOD: + *params = obj->Sampler.MinLod; + break; + case GL_TEXTURE_MAX_LOD: + *params = obj->Sampler.MaxLod; + break; + case GL_TEXTURE_BASE_LEVEL: + *params = (GLfloat) obj->BaseLevel; + break; + case GL_TEXTURE_MAX_LEVEL: + *params = (GLfloat) obj->MaxLevel; + break; + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + if (ctx->Extensions.EXT_texture_filter_anisotropic) { + *params = obj->Sampler.MaxAnisotropy; + } + else + error = GL_TRUE; + break; + case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: + if (ctx->Extensions.ARB_shadow_ambient) { + *params = obj->Sampler.CompareFailValue; + } + else + error = GL_TRUE; + break; + case GL_GENERATE_MIPMAP_SGIS: + *params = (GLfloat) obj->GenerateMipmap; + break; + case GL_TEXTURE_COMPARE_MODE_ARB: + if (ctx->Extensions.ARB_shadow) { + *params = (GLfloat) obj->Sampler.CompareMode; + } + else + error = GL_TRUE; + break; + case GL_TEXTURE_COMPARE_FUNC_ARB: + if (ctx->Extensions.ARB_shadow) { + *params = (GLfloat) obj->Sampler.CompareFunc; + } + else + error = GL_TRUE; + break; + case GL_DEPTH_TEXTURE_MODE_ARB: + if (ctx->Extensions.ARB_depth_texture) { + *params = (GLfloat) obj->Sampler.DepthMode; + } + else + error = GL_TRUE; + break; + case GL_TEXTURE_LOD_BIAS: + if (ctx->Extensions.EXT_texture_lod_bias) { + *params = obj->Sampler.LodBias; + } + else + error = GL_TRUE; + break; +#if FEATURE_OES_draw_texture + case GL_TEXTURE_CROP_RECT_OES: + params[0] = obj->CropRect[0]; + params[1] = obj->CropRect[1]; + params[2] = obj->CropRect[2]; + params[3] = obj->CropRect[3]; + break; +#endif + + case GL_TEXTURE_SWIZZLE_R_EXT: + case GL_TEXTURE_SWIZZLE_G_EXT: + case GL_TEXTURE_SWIZZLE_B_EXT: + case GL_TEXTURE_SWIZZLE_A_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; + *params = (GLfloat) obj->Swizzle[comp]; + } + else { + error = GL_TRUE; + } + break; + + case GL_TEXTURE_SWIZZLE_RGBA_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + GLuint comp; + for (comp = 0; comp < 4; comp++) { + params[comp] = (GLfloat) obj->Swizzle[comp]; + } + } + else { + error = GL_TRUE; + } + break; + + default: + error = GL_TRUE; + break; + } + + if (error) + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", + pname); + + _mesa_unlock_texture(ctx, obj); +} + + +void GLAPIENTRY +_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) +{ + struct gl_texture_object *obj; + GLboolean error = GL_FALSE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + obj = get_texobj(ctx, target, GL_TRUE); + if (!obj) + return; + + _mesa_lock_texture(ctx, obj); + switch (pname) { + case GL_TEXTURE_MAG_FILTER: + *params = (GLint) obj->Sampler.MagFilter; + break;; + case GL_TEXTURE_MIN_FILTER: + *params = (GLint) obj->Sampler.MinFilter; + break;; + case GL_TEXTURE_WRAP_S: + *params = (GLint) obj->Sampler.WrapS; + break;; + case GL_TEXTURE_WRAP_T: + *params = (GLint) obj->Sampler.WrapT; + break;; + case GL_TEXTURE_WRAP_R: + *params = (GLint) obj->Sampler.WrapR; + break;; + case GL_TEXTURE_BORDER_COLOR: + { + GLfloat b[4]; + b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F); + b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F); + b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F); + b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F); + params[0] = FLOAT_TO_INT(b[0]); + params[1] = FLOAT_TO_INT(b[1]); + params[2] = FLOAT_TO_INT(b[2]); + params[3] = FLOAT_TO_INT(b[3]); + } + break;; + case GL_TEXTURE_RESIDENT: + { + GLboolean resident; + if (ctx->Driver.IsTextureResident) + resident = ctx->Driver.IsTextureResident(ctx, obj); + else + resident = GL_TRUE; + *params = (GLint) resident; + } + break;; + case GL_TEXTURE_PRIORITY: + *params = FLOAT_TO_INT(obj->Priority); + break;; + case GL_TEXTURE_MIN_LOD: + *params = (GLint) obj->Sampler.MinLod; + break;; + case GL_TEXTURE_MAX_LOD: + *params = (GLint) obj->Sampler.MaxLod; + break;; + case GL_TEXTURE_BASE_LEVEL: + *params = obj->BaseLevel; + break;; + case GL_TEXTURE_MAX_LEVEL: + *params = obj->MaxLevel; + break;; + case GL_TEXTURE_MAX_ANISOTROPY_EXT: + if (ctx->Extensions.EXT_texture_filter_anisotropic) { + *params = (GLint) obj->Sampler.MaxAnisotropy; + } + else { + error = GL_TRUE; + } + break; + case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: + if (ctx->Extensions.ARB_shadow_ambient) { + *params = (GLint) FLOAT_TO_INT(obj->Sampler.CompareFailValue); + } + else { + error = GL_TRUE; + } + break; + case GL_GENERATE_MIPMAP_SGIS: + *params = (GLint) obj->GenerateMipmap; + break; + case GL_TEXTURE_COMPARE_MODE_ARB: + if (ctx->Extensions.ARB_shadow) { + *params = (GLint) obj->Sampler.CompareMode; + } + else { + error = GL_TRUE; + } + break; + case GL_TEXTURE_COMPARE_FUNC_ARB: + if (ctx->Extensions.ARB_shadow) { + *params = (GLint) obj->Sampler.CompareFunc; + } + else { + error = GL_TRUE; + } + break; + case GL_DEPTH_TEXTURE_MODE_ARB: + if (ctx->Extensions.ARB_depth_texture) { + *params = (GLint) obj->Sampler.DepthMode; + } + else { + error = GL_TRUE; + } + break; + case GL_TEXTURE_LOD_BIAS: + if (ctx->Extensions.EXT_texture_lod_bias) { + *params = (GLint) obj->Sampler.LodBias; + } + else { + error = GL_TRUE; + } + break; +#if FEATURE_OES_draw_texture + case GL_TEXTURE_CROP_RECT_OES: + params[0] = obj->CropRect[0]; + params[1] = obj->CropRect[1]; + params[2] = obj->CropRect[2]; + params[3] = obj->CropRect[3]; + break; +#endif + case GL_TEXTURE_SWIZZLE_R_EXT: + case GL_TEXTURE_SWIZZLE_G_EXT: + case GL_TEXTURE_SWIZZLE_B_EXT: + case GL_TEXTURE_SWIZZLE_A_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; + *params = obj->Swizzle[comp]; + } + else { + error = GL_TRUE; + } + break; + + case GL_TEXTURE_SWIZZLE_RGBA_EXT: + if (ctx->Extensions.EXT_texture_swizzle) { + COPY_4V(params, obj->Swizzle); + } + else { + error = GL_TRUE; + } + break; + + default: + ; /* silence warnings */ + } + + if (error) + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", + pname); + + _mesa_unlock_texture(ctx, obj); +} + + +/** New in GL 3.0 */ +void GLAPIENTRY +_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params) +{ + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_TRUE); + + switch (pname) { + case GL_TEXTURE_BORDER_COLOR: + COPY_4V(params, texObj->Sampler.BorderColor.i); + break; + default: + _mesa_GetTexParameteriv(target, pname, params); + } +} + + +/** New in GL 3.0 */ +void GLAPIENTRY +_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params) +{ + struct gl_texture_object *texObj; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + texObj = get_texobj(ctx, target, GL_TRUE); + + switch (pname) { + case GL_TEXTURE_BORDER_COLOR: + COPY_4V(params, texObj->Sampler.BorderColor.i); + break; + default: + { + GLint ip[4]; + _mesa_GetTexParameteriv(target, pname, ip); + params[0] = ip[0]; + if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT || + pname == GL_TEXTURE_CROP_RECT_OES) { + params[1] = ip[1]; + params[2] = ip[2]; + params[3] = ip[3]; + } + } + } +} diff --git a/mesalib/src/mesa/main/texrender.c b/mesalib/src/mesa/main/texrender.c index 2766bd6c5..4bcef9899 100644 --- a/mesalib/src/mesa/main/texrender.c +++ b/mesalib/src/mesa/main/texrender.c @@ -530,6 +530,7 @@ update_wrapper(struct gl_context *ctx, struct gl_renderbuffer_attachment *att) { struct texture_renderbuffer *trb = (struct texture_renderbuffer *) att->Renderbuffer; + GLuint unused; (void) ctx; ASSERT(trb); @@ -602,8 +603,10 @@ update_wrapper(struct gl_context *ctx, struct gl_renderbuffer_attachment *att) trb->Base._BaseFormat = GL_RGBA; break; default: - trb->Base.DataType = CHAN_TYPE; - trb->Base._BaseFormat = GL_RGBA; + _mesa_format_to_type_and_comps(trb->TexImage->TexFormat, + &trb->Base.DataType, &unused); + trb->Base._BaseFormat = + _mesa_base_fbo_format(ctx, trb->TexImage->InternalFormat); } trb->Base.Data = trb->TexImage->Data; } diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c index c4fe82a0b..ea116a011 100644 --- a/mesalib/src/mesa/main/texstore.c +++ b/mesalib/src/mesa/main/texstore.c @@ -1,4875 +1,4985 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * 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 - */ - -/** - * The GL texture image functions in teximage.c basically just do - * error checking and data structure allocation. They in turn call - * device driver functions which actually copy/convert/store the user's - * texture image data. - * - * However, most device drivers will be able to use the fallback functions - * in this file. That is, most drivers will have the following bit of - * code: - * ctx->Driver.TexImage1D = _mesa_store_teximage1d; - * ctx->Driver.TexImage2D = _mesa_store_teximage2d; - * ctx->Driver.TexImage3D = _mesa_store_teximage3d; - * etc... - * - * Texture image processing is actually kind of complicated. We have to do: - * Format/type conversions - * pixel unpacking - * pixel transfer (scale, bais, lookup, etc) - * - * These functions can handle most everything, including processing full - * images and sub-images. - */ - - -#include "glheader.h" -#include "bufferobj.h" -#include "colormac.h" -#include "image.h" -#include "macros.h" -#include "mipmap.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "pack.h" -#include "pbo.h" -#include "imports.h" -#include "texcompress.h" -#include "texcompress_fxt1.h" -#include "texcompress_rgtc.h" -#include "texcompress_s3tc.h" -#include "teximage.h" -#include "texstore.h" -#include "enums.h" - - -enum { - ZERO = 4, - ONE = 5 -}; - - -/** - * Texture image storage function. - */ -typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS); - - -/** - * Return GL_TRUE if the given image format is one that be converted - * to another format by swizzling. - */ -static GLboolean -can_swizzle(GLenum logicalBaseFormat) -{ - switch (logicalBaseFormat) { - case GL_RGBA: - case GL_RGB: - case GL_LUMINANCE_ALPHA: - case GL_INTENSITY: - case GL_ALPHA: - case GL_LUMINANCE: - case GL_RED: - case GL_GREEN: - case GL_BLUE: - case GL_BGR: - case GL_BGRA: - case GL_ABGR_EXT: - case GL_RG: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - - -enum { - IDX_LUMINANCE = 0, - IDX_ALPHA, - IDX_INTENSITY, - IDX_LUMINANCE_ALPHA, - IDX_RGB, - IDX_RGBA, - IDX_RED, - IDX_GREEN, - IDX_BLUE, - IDX_BGR, - IDX_BGRA, - IDX_ABGR, - IDX_RG, - MAX_IDX -}; - -#define MAP1(x) MAP4(x, ZERO, ZERO, ZERO) -#define MAP2(x,y) MAP4(x, y, ZERO, ZERO) -#define MAP3(x,y,z) MAP4(x, y, z, ZERO) -#define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE } - - -static const struct { - GLubyte format_idx; - GLubyte to_rgba[6]; - GLubyte from_rgba[6]; -} mappings[MAX_IDX] = -{ - { - IDX_LUMINANCE, - MAP4(0,0,0,ONE), - MAP1(0) - }, - - { - IDX_ALPHA, - MAP4(ZERO, ZERO, ZERO, 0), - MAP1(3) - }, - - { - IDX_INTENSITY, - MAP4(0, 0, 0, 0), - MAP1(0), - }, - - { - IDX_LUMINANCE_ALPHA, - MAP4(0,0,0,1), - MAP2(0,3) - }, - - { - IDX_RGB, - MAP4(0,1,2,ONE), - MAP3(0,1,2) - }, - - { - IDX_RGBA, - MAP4(0,1,2,3), - MAP4(0,1,2,3), - }, - - { - IDX_RED, - MAP4(0, ZERO, ZERO, ONE), - MAP1(0), - }, - - { - IDX_GREEN, - MAP4(ZERO, 0, ZERO, ONE), - MAP1(1), - }, - - { - IDX_BLUE, - MAP4(ZERO, ZERO, 0, ONE), - MAP1(2), - }, - - { - IDX_BGR, - MAP4(2,1,0,ONE), - MAP3(2,1,0) - }, - - { - IDX_BGRA, - MAP4(2,1,0,3), - MAP4(2,1,0,3) - }, - - { - IDX_ABGR, - MAP4(3,2,1,0), - MAP4(3,2,1,0) - }, - - { - IDX_RG, - MAP4(0, 1, ZERO, ONE), - MAP2(0, 1) - }, -}; - - - -/** - * Convert a GL image format enum to an IDX_* value (see above). - */ -static int -get_map_idx(GLenum value) -{ - switch (value) { - case GL_LUMINANCE: return IDX_LUMINANCE; - case GL_ALPHA: return IDX_ALPHA; - case GL_INTENSITY: return IDX_INTENSITY; - case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA; - case GL_RGB: return IDX_RGB; - case GL_RGBA: return IDX_RGBA; - case GL_RED: return IDX_RED; - case GL_GREEN: return IDX_GREEN; - case GL_BLUE: return IDX_BLUE; - case GL_BGR: return IDX_BGR; - case GL_BGRA: return IDX_BGRA; - case GL_ABGR_EXT: return IDX_ABGR; - case GL_RG: return IDX_RG; - default: - _mesa_problem(NULL, "Unexpected inFormat"); - return 0; - } -} - - -/** - * When promoting texture formats (see below) we need to compute the - * mapping of dest components back to source components. - * This function does that. - * \param inFormat the incoming format of the texture - * \param outFormat the final texture format - * \return map[6] a full 6-component map - */ -static void -compute_component_mapping(GLenum inFormat, GLenum outFormat, - GLubyte *map) -{ - const int inFmt = get_map_idx(inFormat); - const int outFmt = get_map_idx(outFormat); - const GLubyte *in2rgba = mappings[inFmt].to_rgba; - const GLubyte *rgba2out = mappings[outFmt].from_rgba; - int i; - - for (i = 0; i < 4; i++) - map[i] = in2rgba[rgba2out[i]]; - - map[ZERO] = ZERO; - map[ONE] = ONE; - -#if 0 - printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n", - inFormat, _mesa_lookup_enum_by_nr(inFormat), - outFormat, _mesa_lookup_enum_by_nr(outFormat), - map[0], - map[1], - map[2], - map[3], - map[4], - map[5]); -#endif -} - - -/** - * Make a temporary (color) texture image with GLfloat components. - * Apply all needed pixel unpacking and pixel transfer operations. - * Note that there are both logicalBaseFormat and textureBaseFormat parameters. - * Suppose the user specifies GL_LUMINANCE as the internal texture format - * but the graphics hardware doesn't support luminance textures. So, we might - * use an RGB hardware format instead. - * If logicalBaseFormat != textureBaseFormat we have some extra work to do. - * - * \param ctx the rendering context - * \param dims image dimensions: 1, 2 or 3 - * \param logicalBaseFormat basic texture derived from the user's - * internal texture format value - * \param textureBaseFormat the actual basic format of the texture - * \param srcWidth source image width - * \param srcHeight source image height - * \param srcDepth source image depth - * \param srcFormat source image format - * \param srcType source image type - * \param srcAddr source image address - * \param srcPacking source image pixel packing - * \return resulting image with format = textureBaseFormat and type = GLfloat. - */ -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) -{ - GLfloat *tempImage; - const GLint components = _mesa_components_in_format(logicalBaseFormat); - const GLint srcStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLfloat *dst; - GLint img, row; - - ASSERT(dims >= 1 && dims <= 3); - - ASSERT(logicalBaseFormat == GL_RGBA || - logicalBaseFormat == GL_RGB || - logicalBaseFormat == GL_RG || - logicalBaseFormat == GL_RED || - logicalBaseFormat == GL_LUMINANCE_ALPHA || - logicalBaseFormat == GL_LUMINANCE || - logicalBaseFormat == GL_ALPHA || - logicalBaseFormat == GL_INTENSITY || - logicalBaseFormat == GL_COLOR_INDEX || - logicalBaseFormat == GL_DEPTH_COMPONENT); - - ASSERT(textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_RGB || - textureBaseFormat == GL_RG || - textureBaseFormat == GL_RED || - textureBaseFormat == GL_LUMINANCE_ALPHA || - textureBaseFormat == GL_LUMINANCE || - textureBaseFormat == GL_ALPHA || - textureBaseFormat == GL_INTENSITY || - textureBaseFormat == GL_COLOR_INDEX || - textureBaseFormat == GL_DEPTH_COMPONENT); - - tempImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth - * components * sizeof(GLfloat)); - if (!tempImage) - return NULL; - - dst = tempImage; - for (img = 0; img < srcDepth; img++) { - const GLubyte *src - = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat, - dst, srcFormat, srcType, src, - srcPacking, transferOps); - dst += srcWidth * components; - src += srcStride; - } - } - - if (logicalBaseFormat != textureBaseFormat) { - /* more work */ - GLint texComponents = _mesa_components_in_format(textureBaseFormat); - GLint logComponents = _mesa_components_in_format(logicalBaseFormat); - GLfloat *newImage; - GLint i, n; - GLubyte map[6]; - - /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ - ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_LUMINANCE_ALPHA); - - /* The actual texture format should have at least as many components - * as the logical texture format. - */ - ASSERT(texComponents >= logComponents); - - newImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth - * texComponents * sizeof(GLfloat)); - if (!newImage) { - free(tempImage); - return NULL; - } - - compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); - - n = srcWidth * srcHeight * srcDepth; - for (i = 0; i < n; i++) { - GLint k; - for (k = 0; k < texComponents; k++) { - GLint j = map[k]; - if (j == ZERO) - newImage[i * texComponents + k] = 0.0F; - else if (j == ONE) - newImage[i * texComponents + k] = 1.0F; - else - newImage[i * texComponents + k] = tempImage[i * logComponents + j]; - } - } - - free(tempImage); - tempImage = newImage; - } - - return tempImage; -} - - -/** - * Make temporary image with uint pixel values. Used for unsigned - * integer-valued textures. - */ -static GLuint * -make_temp_uint_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) -{ - GLuint *tempImage; - const GLint components = _mesa_components_in_format(logicalBaseFormat); - const GLint srcStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLuint *dst; - GLint img, row; - - ASSERT(dims >= 1 && dims <= 3); - - ASSERT(logicalBaseFormat == GL_RGBA || - logicalBaseFormat == GL_RGB || - logicalBaseFormat == GL_RG || - logicalBaseFormat == GL_RED || - logicalBaseFormat == GL_LUMINANCE_ALPHA || - logicalBaseFormat == GL_LUMINANCE || - logicalBaseFormat == GL_INTENSITY || - logicalBaseFormat == GL_ALPHA); - - ASSERT(textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_RGB || - textureBaseFormat == GL_RG || - textureBaseFormat == GL_RED || - textureBaseFormat == GL_LUMINANCE_ALPHA || - textureBaseFormat == GL_LUMINANCE || - textureBaseFormat == GL_ALPHA); - - tempImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth - * components * sizeof(GLuint)); - if (!tempImage) - return NULL; - - dst = tempImage; - for (img = 0; img < srcDepth; img++) { - const GLubyte *src - = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - _mesa_unpack_color_span_uint(ctx, srcWidth, logicalBaseFormat, - dst, srcFormat, srcType, src, - srcPacking); - dst += srcWidth * components; - src += srcStride; - } - } - - if (logicalBaseFormat != textureBaseFormat) { - /* more work */ - GLint texComponents = _mesa_components_in_format(textureBaseFormat); - GLint logComponents = _mesa_components_in_format(logicalBaseFormat); - GLuint *newImage; - GLint i, n; - GLubyte map[6]; - - /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ - ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_LUMINANCE_ALPHA); - - /* The actual texture format should have at least as many components - * as the logical texture format. - */ - ASSERT(texComponents >= logComponents); - - newImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth - * texComponents * sizeof(GLuint)); - if (!newImage) { - free(tempImage); - return NULL; - } - - compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); - - n = srcWidth * srcHeight * srcDepth; - for (i = 0; i < n; i++) { - GLint k; - for (k = 0; k < texComponents; k++) { - GLint j = map[k]; - if (j == ZERO) - newImage[i * texComponents + k] = 0.0F; - else if (j == ONE) - newImage[i * texComponents + k] = 1.0F; - else - newImage[i * texComponents + k] = tempImage[i * logComponents + j]; - } - } - - free(tempImage); - tempImage = newImage; - } - - return tempImage; -} - - - -/** - * Make a temporary (color) texture image with GLchan components. - * Apply all needed pixel unpacking and pixel transfer operations. - * Note that there are both logicalBaseFormat and textureBaseFormat parameters. - * Suppose the user specifies GL_LUMINANCE as the internal texture format - * but the graphics hardware doesn't support luminance textures. So, we might - * use an RGB hardware format instead. - * If logicalBaseFormat != textureBaseFormat we have some extra work to do. - * - * \param ctx the rendering context - * \param dims image dimensions: 1, 2 or 3 - * \param logicalBaseFormat basic texture derived from the user's - * internal texture format value - * \param textureBaseFormat the actual basic format of the texture - * \param srcWidth source image width - * \param srcHeight source image height - * \param srcDepth source image depth - * \param srcFormat source image format - * \param srcType source image type - * \param srcAddr source image address - * \param srcPacking source image pixel packing - * \return resulting image with format = textureBaseFormat and type = GLchan. - */ -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) -{ - GLuint transferOps = ctx->_ImageTransferState; - const GLint components = _mesa_components_in_format(logicalBaseFormat); - GLint img, row; - GLchan *tempImage, *dst; - - ASSERT(dims >= 1 && dims <= 3); - - ASSERT(logicalBaseFormat == GL_RGBA || - logicalBaseFormat == GL_RGB || - logicalBaseFormat == GL_RG || - logicalBaseFormat == GL_RED || - logicalBaseFormat == GL_LUMINANCE_ALPHA || - logicalBaseFormat == GL_LUMINANCE || - logicalBaseFormat == GL_ALPHA || - logicalBaseFormat == GL_INTENSITY); - - ASSERT(textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_RGB || - textureBaseFormat == GL_RG || - textureBaseFormat == GL_RED || - textureBaseFormat == GL_LUMINANCE_ALPHA || - textureBaseFormat == GL_LUMINANCE || - textureBaseFormat == GL_ALPHA || - textureBaseFormat == GL_INTENSITY); - - /* unpack and transfer the source image */ - tempImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth - * components * sizeof(GLchan)); - if (!tempImage) { - return NULL; - } - - dst = tempImage; - for (img = 0; img < srcDepth; img++) { - const GLint srcStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - const GLubyte *src = - (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - _mesa_unpack_color_span_chan(ctx, srcWidth, logicalBaseFormat, dst, - srcFormat, srcType, src, srcPacking, - transferOps); - dst += srcWidth * components; - src += srcStride; - } - } - - if (logicalBaseFormat != textureBaseFormat) { - /* one more conversion step */ - GLint texComponents = _mesa_components_in_format(textureBaseFormat); - GLint logComponents = _mesa_components_in_format(logicalBaseFormat); - GLchan *newImage; - GLint i, n; - GLubyte map[6]; - - /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ - ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || - textureBaseFormat == GL_LUMINANCE_ALPHA); - - /* The actual texture format should have at least as many components - * as the logical texture format. - */ - ASSERT(texComponents >= logComponents); - - newImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth - * texComponents * sizeof(GLchan)); - if (!newImage) { - free(tempImage); - return NULL; - } - - compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); - - n = srcWidth * srcHeight * srcDepth; - for (i = 0; i < n; i++) { - GLint k; - for (k = 0; k < texComponents; k++) { - GLint j = map[k]; - if (j == ZERO) - newImage[i * texComponents + k] = 0; - else if (j == ONE) - newImage[i * texComponents + k] = CHAN_MAX; - else - newImage[i * texComponents + k] = tempImage[i * logComponents + j]; - } - } - - free(tempImage); - tempImage = newImage; - } - - return tempImage; -} - - -/** - * Copy GLubyte pixels from to with swizzling. - * \param dst destination pixels - * \param dstComponents number of color components in destination pixels - * \param src source pixels - * \param srcComponents number of color components in source pixels - * \param map the swizzle mapping. map[X] says where to find the X component - * in the source image's pixels. For example, if the source image - * is GL_BGRA and X = red, map[0] yields 2. - * \param count number of pixels to copy/swizzle. - */ -static void -swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src, - GLuint srcComponents, const GLubyte *map, GLuint count) -{ -#define SWZ_CPY(dst, src, count, dstComps, srcComps) \ - do { \ - GLuint i; \ - for (i = 0; i < count; i++) { \ - GLuint j; \ - if (srcComps == 4) { \ - COPY_4UBV(tmp, src); \ - } \ - else { \ - for (j = 0; j < srcComps; j++) { \ - tmp[j] = src[j]; \ - } \ - } \ - src += srcComps; \ - for (j = 0; j < dstComps; j++) { \ - dst[j] = tmp[map[j]]; \ - } \ - dst += dstComps; \ - } \ - } while (0) - - GLubyte tmp[6]; - - tmp[ZERO] = 0x0; - tmp[ONE] = 0xff; - - ASSERT(srcComponents <= 4); - ASSERT(dstComponents <= 4); - - switch (dstComponents) { - case 4: - switch (srcComponents) { - case 4: - SWZ_CPY(dst, src, count, 4, 4); - break; - case 3: - SWZ_CPY(dst, src, count, 4, 3); - break; - case 2: - SWZ_CPY(dst, src, count, 4, 2); - break; - case 1: - SWZ_CPY(dst, src, count, 4, 1); - break; - default: - ; - } - break; - case 3: - switch (srcComponents) { - case 4: - SWZ_CPY(dst, src, count, 3, 4); - break; - case 3: - SWZ_CPY(dst, src, count, 3, 3); - break; - case 2: - SWZ_CPY(dst, src, count, 3, 2); - break; - case 1: - SWZ_CPY(dst, src, count, 3, 1); - break; - default: - ; - } - break; - case 2: - switch (srcComponents) { - case 4: - SWZ_CPY(dst, src, count, 2, 4); - break; - case 3: - SWZ_CPY(dst, src, count, 2, 3); - break; - case 2: - SWZ_CPY(dst, src, count, 2, 2); - break; - case 1: - SWZ_CPY(dst, src, count, 2, 1); - break; - default: - ; - } - break; - case 1: - switch (srcComponents) { - case 4: - SWZ_CPY(dst, src, count, 1, 4); - break; - case 3: - SWZ_CPY(dst, src, count, 1, 3); - break; - case 2: - SWZ_CPY(dst, src, count, 1, 2); - break; - case 1: - SWZ_CPY(dst, src, count, 1, 1); - break; - default: - ; - } - break; - default: - ; - } -#undef SWZ_CPY -} - - - -static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE }; -static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE }; - - -/** - * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a - * mapping array depending on endianness. - */ -static const GLubyte * -type_mapping( GLenum srcType ) -{ - switch (srcType) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - return map_identity; - case GL_UNSIGNED_INT_8_8_8_8: - return _mesa_little_endian() ? map_3210 : map_identity; - case GL_UNSIGNED_INT_8_8_8_8_REV: - return _mesa_little_endian() ? map_identity : map_3210; - default: - return NULL; - } -} - - -/** - * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a - * mapping array depending on pixelstore byte swapping state. - */ -static const GLubyte * -byteswap_mapping( GLboolean swapBytes, - GLenum srcType ) -{ - if (!swapBytes) - return map_identity; - - switch (srcType) { - case GL_BYTE: - case GL_UNSIGNED_BYTE: - return map_identity; - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - return map_3210; - default: - return NULL; - } -} - - - -/** - * Transfer a GLubyte texture image with component swizzling. - */ -static void -_mesa_swizzle_ubyte_image(struct gl_context *ctx, - GLuint dimensions, - GLenum srcFormat, - GLenum srcType, - - GLenum baseInternalFormat, - - const GLubyte *rgba2dst, - GLuint dstComponents, - - GLvoid *dstAddr, - GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, - GLint dstRowStride, - const GLuint *dstImageOffsets, - - GLint srcWidth, GLint srcHeight, GLint srcDepth, - const GLvoid *srcAddr, - const struct gl_pixelstore_attrib *srcPacking ) -{ - GLint srcComponents = _mesa_components_in_format(srcFormat); - const GLubyte *srctype2ubyte, *swap; - GLubyte map[4], src2base[6], base2rgba[6]; - GLint i; - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, - srcFormat, GL_UNSIGNED_BYTE); - const GLint srcImageStride - = _mesa_image_image_stride(srcPacking, srcWidth, srcHeight, srcFormat, - GL_UNSIGNED_BYTE); - const GLubyte *srcImage - = (const GLubyte *) _mesa_image_address(dimensions, srcPacking, srcAddr, - srcWidth, srcHeight, srcFormat, - GL_UNSIGNED_BYTE, 0, 0, 0); - - (void) ctx; - - /* Translate from src->baseInternal->GL_RGBA->dst. This will - * correctly deal with RGBA->RGB->RGBA conversions where the final - * A value must be 0xff regardless of the incoming alpha values. - */ - compute_component_mapping(srcFormat, baseInternalFormat, src2base); - compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba); - swap = byteswap_mapping(srcPacking->SwapBytes, srcType); - srctype2ubyte = type_mapping(srcType); - - - for (i = 0; i < 4; i++) - map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]]; - -/* printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */ - - if (srcComponents == dstComponents && - srcRowStride == dstRowStride && - srcRowStride == srcWidth * srcComponents && - dimensions < 3) { - /* 1 and 2D images only */ - GLubyte *dstImage = (GLubyte *) dstAddr - + dstYoffset * dstRowStride - + dstXoffset * dstComponents; - swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map, - srcWidth * srcHeight); - } - else { - GLint img, row; - for (img = 0; img < srcDepth; img++) { - const GLubyte *srcRow = srcImage; - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * dstComponents - + dstYoffset * dstRowStride - + dstXoffset * dstComponents; - for (row = 0; row < srcHeight; row++) { - swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth); - dstRow += dstRowStride; - srcRow += srcRowStride; - } - srcImage += srcImageStride; - } - } -} - - -/** - * Teximage storage routine for when a simple memcpy will do. - * No pixel transfer operations or special texel encodings allowed. - * 1D, 2D and 3D images supported. - */ -static void -memcpy_texture(struct gl_context *ctx, - GLuint dimensions, - 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) -{ - const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, - srcFormat, srcType); - const GLint srcImageStride = _mesa_image_image_stride(srcPacking, - srcWidth, srcHeight, srcFormat, srcType); - const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions, - srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLint bytesPerRow = srcWidth * texelBytes; - -#if 0 - /* XXX update/re-enable for dstImageOffsets array */ - const GLint bytesPerImage = srcHeight * bytesPerRow; - const GLint bytesPerTexture = srcDepth * bytesPerImage; - GLubyte *dstImage = (GLubyte *) dstAddr - + dstZoffset * dstImageStride - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - - if (dstRowStride == srcRowStride && - dstRowStride == bytesPerRow && - ((dstImageStride == srcImageStride && - dstImageStride == bytesPerImage) || - (srcDepth == 1))) { - /* one big memcpy */ - ctx->Driver.TextureMemCpy(dstImage, srcImage, bytesPerTexture); - } - else - { - GLint img, row; - for (img = 0; img < srcDepth; img++) { - const GLubyte *srcRow = srcImage; - GLubyte *dstRow = dstImage; - for (row = 0; row < srcHeight; row++) { - ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow); - dstRow += dstRowStride; - srcRow += srcRowStride; - } - srcImage += srcImageStride; - dstImage += dstImageStride; - } - } -#endif - - GLint img, row; - for (img = 0; img < srcDepth; img++) { - const GLubyte *srcRow = srcImage; - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow); - dstRow += dstRowStride; - srcRow += srcRowStride; - } - srcImage += srcImageStride; - } -} - - - -/** - * Store a 32-bit integer depth component texture image. - */ -static GLboolean -_mesa_texstore_z32(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffffffff; - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - (void) dims; - ASSERT(dstFormat == MESA_FORMAT_Z32); - ASSERT(texelBytes == sizeof(GLuint)); - - if (ctx->Pixel.DepthScale == 1.0f && - ctx->Pixel.DepthBias == 0.0f && - !srcPacking->SwapBytes && - baseInternalFormat == GL_DEPTH_COMPONENT && - srcFormat == GL_DEPTH_COMPONENT && - srcType == GL_UNSIGNED_INT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - const GLvoid *src = _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_INT, (GLuint *) dstRow, - depthScale, srcType, src, srcPacking); - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - - -/** - * Store a 24-bit integer depth component texture image. - */ -static GLboolean -_mesa_texstore_x8_z24(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffffff; - const GLuint texelBytes = 4; - - (void) dims; - ASSERT(dstFormat == MESA_FORMAT_X8_Z24); - - { - /* general path */ - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - const GLvoid *src = _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_INT, (GLuint *) dstRow, - depthScale, srcType, src, srcPacking); - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - - -/** - * Store a 24-bit integer depth component texture image. - */ -static GLboolean -_mesa_texstore_z24_x8(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffffff; - const GLuint texelBytes = 4; - - (void) dims; - ASSERT(dstFormat == MESA_FORMAT_Z24_X8); - - { - /* general path */ - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - const GLvoid *src = _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - GLuint *dst = (GLuint *) dstRow; - GLint i; - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_INT, dst, - depthScale, srcType, src, srcPacking); - for (i = 0; i < srcWidth; i++) - dst[i] <<= 8; - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - - -/** - * Store a 16-bit integer depth component texture image. - */ -static GLboolean -_mesa_texstore_z16(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffff; - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - (void) dims; - ASSERT(dstFormat == MESA_FORMAT_Z16); - ASSERT(texelBytes == sizeof(GLushort)); - - if (ctx->Pixel.DepthScale == 1.0f && - ctx->Pixel.DepthBias == 0.0f && - !srcPacking->SwapBytes && - baseInternalFormat == GL_DEPTH_COMPONENT && - srcFormat == GL_DEPTH_COMPONENT && - srcType == GL_UNSIGNED_SHORT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - const GLvoid *src = _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - GLushort *dst16 = (GLushort *) dstRow; - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_SHORT, dst16, depthScale, - srcType, src, srcPacking); - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - - -/** - * Store an rgb565 or rgb565_rev texture image. - */ -static GLboolean -_mesa_texstore_rgb565(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGB565 || - dstFormat == MESA_FORMAT_RGB565_REV); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_RGB565 && - baseInternalFormat == GL_RGB && - srcFormat == GL_RGB && - srcType == GL_UNSIGNED_SHORT_5_6_5) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGB && - srcFormat == GL_RGB && - srcType == GL_UNSIGNED_BYTE && - dims == 2) { - /* do optimized tex store */ - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - const GLubyte *src = (const GLubyte *) - _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight, - srcFormat, srcType, 0, 0, 0); - GLubyte *dst = (GLubyte *) dstAddr - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - GLint row, col; - for (row = 0; row < srcHeight; row++) { - const GLubyte *srcUB = (const GLubyte *) src; - GLushort *dstUS = (GLushort *) dst; - /* check for byteswapped format */ - if (dstFormat == MESA_FORMAT_RGB565) { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] ); - srcUB += 3; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] ); - srcUB += 3; - } - } - dst += dstRowStride; - src += srcRowStride; - } - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - /* check for byteswapped format */ - if (dstFormat == MESA_FORMAT_RGB565) { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_565( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 3; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 3; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV. - */ -static GLboolean -_mesa_texstore_rgba8888(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA8888 || - dstFormat == MESA_FORMAT_RGBA8888_REV); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_RGBA8888 && - baseInternalFormat == GL_RGBA && - ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) || - (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) || - (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) || - (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_RGBA8888_REV && - baseInternalFormat == GL_RGBA && - ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) || - (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) || - (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) || - (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - (srcType == GL_UNSIGNED_BYTE || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV) && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - if ((littleEndian && dstFormat == MESA_FORMAT_RGBA8888) || - (!littleEndian && dstFormat == MESA_FORMAT_RGBA8888_REV)) { - dstmap[3] = 0; - dstmap[2] = 1; - dstmap[1] = 2; - dstmap[0] = 3; - } - else { - dstmap[3] = 3; - dstmap[2] = 2; - dstmap[1] = 1; - dstmap[0] = 0; - } - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 4, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *dstUI = (GLuint *) dstRow; - if (dstFormat == MESA_FORMAT_RGBA8888) { - for (col = 0; col < srcWidth; col++) { - dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]), - CHAN_TO_UBYTE(src[ACOMP]) ); - src += 4; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]), - CHAN_TO_UBYTE(src[ACOMP]) ); - src += 4; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_argb8888(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = GL_RGBA; - - ASSERT(dstFormat == MESA_FORMAT_ARGB8888 || - dstFormat == MESA_FORMAT_ARGB8888_REV || - dstFormat == MESA_FORMAT_XRGB8888 || - dstFormat == MESA_FORMAT_XRGB8888_REV ); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - (dstFormat == MESA_FORMAT_ARGB8888 || - dstFormat == MESA_FORMAT_XRGB8888) && - baseInternalFormat == GL_RGBA && - srcFormat == GL_BGRA && - ((srcType == GL_UNSIGNED_BYTE && littleEndian) || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV)) { - /* simple memcpy path (little endian) */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - (dstFormat == MESA_FORMAT_ARGB8888_REV || - dstFormat == MESA_FORMAT_XRGB8888_REV) && - baseInternalFormat == GL_RGBA && - srcFormat == GL_BGRA && - ((srcType == GL_UNSIGNED_BYTE && !littleEndian) || - srcType == GL_UNSIGNED_INT_8_8_8_8)) { - /* simple memcpy path (big endian) */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - (dstFormat == MESA_FORMAT_ARGB8888 || - dstFormat == MESA_FORMAT_XRGB8888) && - srcFormat == GL_RGB && - (baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB) && - srcType == GL_UNSIGNED_BYTE) { - int img, row, col; - for (img = 0; img < srcDepth; img++) { - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *d4 = (GLuint *) dstRow; - for (col = 0; col < srcWidth; col++) { - d4[col] = PACK_COLOR_8888(0xff, - srcRow[col * 3 + RCOMP], - srcRow[col * 3 + GCOMP], - srcRow[col * 3 + BCOMP]); - } - dstRow += dstRowStride; - srcRow += srcRowStride; - } - } - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_ARGB8888 && - srcFormat == GL_RGBA && - baseInternalFormat == GL_RGBA && - srcType == GL_UNSIGNED_BYTE) { - /* same as above case, but src data has alpha too */ - GLint img, row, col; - /* For some reason, streaming copies to write-combined regions - * are extremely sensitive to the characteristics of how the - * source data is retrieved. By reordering the source reads to - * be in-order, the speed of this operation increases by half. - * Strangely the same isn't required for the RGB path, above. - */ - for (img = 0; img < srcDepth; img++) { - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *d4 = (GLuint *) dstRow; - for (col = 0; col < srcWidth; col++) { - d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP], - srcRow[col * 4 + RCOMP], - srcRow[col * 4 + GCOMP], - srcRow[col * 4 + BCOMP]); - } - dstRow += dstRowStride; - srcRow += srcRowStride; - } - } - } - else if (!ctx->_ImageTransferState && - (srcType == GL_UNSIGNED_BYTE || - srcType == GL_UNSIGNED_INT_8_8_8_8 || - srcType == GL_UNSIGNED_INT_8_8_8_8_REV) && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) || - (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) || - (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) || - (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) { - dstmap[3] = 3; /* alpha */ - dstmap[2] = 0; /* red */ - dstmap[1] = 1; /* green */ - dstmap[0] = 2; /* blue */ - } - else { - assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) || - (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) || - (littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) || - (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888)); - dstmap[3] = 2; - dstmap[2] = 1; - dstmap[1] = 0; - dstmap[0] = 3; - } - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 4, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *dstUI = (GLuint *) dstRow; - if (dstFormat == MESA_FORMAT_ARGB8888) { - for (col = 0; col < srcWidth; col++) { - dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - else if (dstFormat == MESA_FORMAT_XRGB8888) { - for (col = 0; col < srcWidth; col++) { - dstUI[col] = PACK_COLOR_8888( 0xff, - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_rgb888(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGB888); - ASSERT(texelBytes == 3); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGB && - srcFormat == GL_BGR && - srcType == GL_UNSIGNED_BYTE && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - srcFormat == GL_RGBA && - srcType == GL_UNSIGNED_BYTE) { - /* extract RGB from RGBA */ - GLint img, row, col; - for (img = 0; img < srcDepth; img++) { - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP]; - dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP]; - dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP]; - } - dstRow += dstRowStride; - srcRow += srcRowStride; - } - } - } - else if (!ctx->_ImageTransferState && - srcType == GL_UNSIGNED_BYTE && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - dstmap[0] = 2; - dstmap[1] = 1; - dstmap[2] = 0; - dstmap[3] = ONE; /* ? */ - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 3, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = (const GLchan *) tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { -#if 0 - if (littleEndian) { - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]); - dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); - dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]); - srcUB += 3; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = srcUB[BCOMP]; - dstRow[col * 3 + 1] = srcUB[GCOMP]; - dstRow[col * 3 + 2] = srcUB[RCOMP]; - srcUB += 3; - } - } -#else - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[BCOMP]); - dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); - dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[RCOMP]); - src += 3; - } -#endif - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_bgr888(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_BGR888); - ASSERT(texelBytes == 3); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGB && - srcFormat == GL_RGB && - srcType == GL_UNSIGNED_BYTE && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - srcFormat == GL_RGBA && - srcType == GL_UNSIGNED_BYTE) { - /* extract BGR from RGBA */ - int img, row, col; - for (img = 0; img < srcDepth; img++) { - const GLint srcRowStride = - _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); - GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP]; - dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP]; - dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP]; - } - dstRow += dstRowStride; - srcRow += srcRowStride; - } - } - } - else if (!ctx->_ImageTransferState && - srcType == GL_UNSIGNED_BYTE && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - dstmap[0] = 0; - dstmap[1] = 1; - dstmap[2] = 2; - dstmap[3] = ONE; /* ? */ - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 3, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = (const GLchan *) tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]); - dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); - dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]); - src += 3; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_argb4444(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_ARGB4444 || - dstFormat == MESA_FORMAT_ARGB4444_REV); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_ARGB4444 && - baseInternalFormat == GL_RGBA && - srcFormat == GL_BGRA && - srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - if (dstFormat == MESA_FORMAT_ARGB4444) { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - -static GLboolean -_mesa_texstore_rgba5551(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA5551); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_RGBA5551 && - baseInternalFormat == GL_RGBA && - srcFormat == GL_RGBA && - srcType == GL_UNSIGNED_SHORT_5_5_5_1) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src =tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]), - CHAN_TO_UBYTE(src[ACOMP]) ); - src += 4; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - -static GLboolean -_mesa_texstore_argb1555(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_ARGB1555 || - dstFormat == MESA_FORMAT_ARGB1555_REV); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_ARGB1555 && - baseInternalFormat == GL_RGBA && - srcFormat == GL_BGRA && - srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src =tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - if (dstFormat == MESA_FORMAT_ARGB1555) { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_1555( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dstUS[col] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src[ACOMP]), - CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 4; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_argb2101010(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_ARGB2101010); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_ARGB2101010 && - srcFormat == GL_BGRA && - srcType == GL_UNSIGNED_INT_2_10_10_10_REV && - baseInternalFormat == GL_RGBA) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - if (baseInternalFormat == GL_RGBA) { - for (row = 0; row < srcHeight; row++) { - GLuint *dstUI = (GLuint *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort a,r,g,b; - - UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); - UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); - dstUI[col] = PACK_COLOR_2101010_US(a, r, g, b); - src += 4; - } - dstRow += dstRowStride; - } - } else if (baseInternalFormat == GL_RGB) { - for (row = 0; row < srcHeight; row++) { - GLuint *dstUI = (GLuint *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort r,g,b; - - UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); - UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); - dstUI[col] = PACK_COLOR_2101010_US(0xffff, r, g, b); - src += 4; - } - dstRow += dstRowStride; - } - } else { - ASSERT(0); - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Do texstore for 2-channel, 4-bit/channel, unsigned normalized formats. - */ -static GLboolean -_mesa_texstore_unorm44(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_AL44); - ASSERT(texelBytes == 1); - - { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLubyte *dstUS = (GLubyte *) dstRow; - for (col = 0; col < srcWidth; col++) { - /* src[0] is luminance, src[1] is alpha */ - dstUS[col] = PACK_COLOR_44( CHAN_TO_UBYTE(src[1]), - CHAN_TO_UBYTE(src[0]) ); - src += 2; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats. - */ -static GLboolean -_mesa_texstore_unorm88(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_AL88 || - dstFormat == MESA_FORMAT_AL88_REV || - dstFormat == MESA_FORMAT_RG88 || - dstFormat == MESA_FORMAT_RG88_REV); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - ((dstFormat == MESA_FORMAT_AL88 && - baseInternalFormat == GL_LUMINANCE_ALPHA && - srcFormat == GL_LUMINANCE_ALPHA) || - (dstFormat == MESA_FORMAT_RG88 && - baseInternalFormat == srcFormat)) && - srcType == GL_UNSIGNED_BYTE && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - littleEndian && - srcType == GL_UNSIGNED_BYTE && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - if (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) { - if ((littleEndian && dstFormat == MESA_FORMAT_AL88) || - (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) { - dstmap[0] = 0; - dstmap[1] = 3; - } - else { - dstmap[0] = 3; - dstmap[1] = 0; - } - } - else { - if ((littleEndian && dstFormat == MESA_FORMAT_RG88) || - (!littleEndian && dstFormat == MESA_FORMAT_RG88_REV)) { - dstmap[0] = 0; - dstmap[1] = 1; - } - else { - dstmap[0] = 1; - dstmap[1] = 0; - } - } - dstmap[2] = ZERO; /* ? */ - dstmap[3] = ONE; /* ? */ - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 2, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - if (dstFormat == MESA_FORMAT_AL88 || - dstFormat == MESA_FORMAT_RG88) { - for (col = 0; col < srcWidth; col++) { - /* src[0] is luminance, src[1] is alpha */ - dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]), - CHAN_TO_UBYTE(src[0]) ); - src += 2; - } - } - else { - for (col = 0; col < srcWidth; col++) { - /* src[0] is luminance, src[1] is alpha */ - dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]), - CHAN_TO_UBYTE(src[0]) ); - src += 2; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats. - */ -static GLboolean -_mesa_texstore_unorm1616(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_AL1616 || - dstFormat == MESA_FORMAT_AL1616_REV || - dstFormat == MESA_FORMAT_RG1616 || - dstFormat == MESA_FORMAT_RG1616_REV); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - ((dstFormat == MESA_FORMAT_AL1616 && - baseInternalFormat == GL_LUMINANCE_ALPHA && - srcFormat == GL_LUMINANCE_ALPHA) || - (dstFormat == MESA_FORMAT_RG1616 && - baseInternalFormat == srcFormat)) && - srcType == GL_UNSIGNED_SHORT && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *dstUI = (GLuint *) dstRow; - if (dstFormat == MESA_FORMAT_AL1616 || - dstFormat == MESA_FORMAT_RG1616) { - for (col = 0; col < srcWidth; col++) { - GLushort l, a; - - UNCLAMPED_FLOAT_TO_USHORT(l, src[0]); - UNCLAMPED_FLOAT_TO_USHORT(a, src[1]); - dstUI[col] = PACK_COLOR_1616(a, l); - src += 2; - } - } - else { - for (col = 0; col < srcWidth; col++) { - GLushort l, a; - - UNCLAMPED_FLOAT_TO_USHORT(l, src[0]); - UNCLAMPED_FLOAT_TO_USHORT(a, src[1]); - dstUI[col] = PACK_COLOR_1616_REV(a, l); - src += 2; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* Texstore for R16, A16, L16, I16. */ -static GLboolean -_mesa_texstore_unorm16(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_R16 || - dstFormat == MESA_FORMAT_A16 || - dstFormat == MESA_FORMAT_L16 || - dstFormat == MESA_FORMAT_I16); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_SHORT && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort r; - - UNCLAMPED_FLOAT_TO_USHORT(r, src[0]); - dstUS[col] = r; - src += 1; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_rgba_16(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_16); - ASSERT(texelBytes == 8); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGBA && - srcFormat == GL_RGBA && - srcType == GL_UNSIGNED_SHORT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstUS = (GLushort *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort r, g, b, a; - - UNCLAMPED_FLOAT_TO_USHORT(r, src[0]); - UNCLAMPED_FLOAT_TO_USHORT(g, src[1]); - UNCLAMPED_FLOAT_TO_USHORT(b, src[2]); - UNCLAMPED_FLOAT_TO_USHORT(a, src[3]); - dstUS[col*4+0] = r; - dstUS[col*4+1] = g; - dstUS[col*4+2] = b; - dstUS[col*4+3] = a; - src += 4; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGB_16 || - dstFormat == MESA_FORMAT_SIGNED_RGBA_16); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGBA && - dstFormat == MESA_FORMAT_SIGNED_RGBA_16 && - srcFormat == GL_RGBA && - srcType == GL_SHORT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2; - GLint img, row, col; - - if (!tempImage) - return GL_FALSE; - - /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2, - * 3 or 4 components/pixel here. - */ - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLshort *dstRowS = (GLshort *) dstRow; - if (dstFormat == MESA_FORMAT_SIGNED_RGBA_16) { - for (col = 0; col < srcWidth; col++) { - GLuint c; - for (c = 0; c < comps; c++) { - GLshort p; - UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]); - dstRowS[col * comps + c] = p; - } - } - dstRow += dstRowStride; - src += 4 * srcWidth; - } else { - for (col = 0; col < srcWidth; col++) { - GLuint c; - for (c = 0; c < comps; c++) { - GLshort p; - UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 3 + c]); - dstRowS[col * comps + c] = p; - } - } - dstRow += dstRowStride; - src += 3 * srcWidth; - } - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -static GLboolean -_mesa_texstore_rgb332(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGB332); - ASSERT(texelBytes == 1); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == GL_RGB && - srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]), - CHAN_TO_UBYTE(src[GCOMP]), - CHAN_TO_UBYTE(src[BCOMP]) ); - src += 3; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8. - */ -static GLboolean -_mesa_texstore_unorm8(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_A8 || - dstFormat == MESA_FORMAT_L8 || - dstFormat == MESA_FORMAT_I8 || - dstFormat == MESA_FORMAT_R8); - ASSERT(texelBytes == 1); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - srcType == GL_UNSIGNED_BYTE && - can_swizzle(baseInternalFormat) && - can_swizzle(srcFormat)) { - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - if (dstFormat == MESA_FORMAT_A8) { - dstmap[0] = 3; - } - else { - dstmap[0] = 0; - } - dstmap[1] = ZERO; /* ? */ - dstmap[2] = ZERO; /* ? */ - dstmap[3] = ONE; /* ? */ - - _mesa_swizzle_ubyte_image(ctx, dims, - srcFormat, - srcType, - baseInternalFormat, - dstmap, 1, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path */ - const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking); - const GLchan *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col] = CHAN_TO_UBYTE(src[col]); - } - dstRow += dstRowStride; - src += srcWidth; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - - -static GLboolean -_mesa_texstore_ci8(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - - (void) dims; (void) baseInternalFormat; - ASSERT(dstFormat == MESA_FORMAT_CI8); - ASSERT(texelBytes == 1); - ASSERT(baseInternalFormat == GL_COLOR_INDEX); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - srcFormat == GL_COLOR_INDEX && - srcType == GL_UNSIGNED_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - const GLvoid *src = _mesa_image_address(dims, srcPacking, - srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow, - srcType, src, srcPacking, - ctx->_ImageTransferState); - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - - -/** - * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV. - */ -static GLboolean -_mesa_texstore_ycbcr(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - - (void) ctx; (void) dims; (void) baseInternalFormat; - - ASSERT((dstFormat == MESA_FORMAT_YCBCR) || - (dstFormat == MESA_FORMAT_YCBCR_REV)); - ASSERT(texelBytes == 2); - ASSERT(ctx->Extensions.MESA_ycbcr_texture); - ASSERT(srcFormat == GL_YCBCR_MESA); - ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) || - (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA)); - ASSERT(baseInternalFormat == GL_YCBCR_MESA); - - /* always just memcpy since no pixel transfer ops apply */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - - /* Check if we need byte swapping */ - /* XXX the logic here _might_ be wrong */ - if (srcPacking->SwapBytes ^ - (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^ - (dstFormat == MESA_FORMAT_YCBCR_REV) ^ - !littleEndian) { - GLint img, row; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - _mesa_swap2((GLushort *) dstRow, srcWidth); - dstRow += dstRowStride; - } - } - } - return GL_TRUE; -} - -static GLboolean -_mesa_texstore_dudv8(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_DUDV8); - ASSERT(texelBytes == 2); - ASSERT(ctx->Extensions.ATI_envmap_bumpmap); - ASSERT((srcFormat == GL_DU8DV8_ATI) || - (srcFormat == GL_DUDV_ATI)); - ASSERT(baseInternalFormat == GL_DUDV_ATI); - - if (!srcPacking->SwapBytes && srcType == GL_BYTE && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (srcType == GL_BYTE) { - GLubyte dstmap[4]; - - /* dstmap - how to swizzle from RGBA to dst format: - */ - if (littleEndian) { - dstmap[0] = 0; - dstmap[1] = 3; - } - else { - dstmap[0] = 3; - dstmap[1] = 0; - } - dstmap[2] = ZERO; /* ? */ - dstmap[3] = ONE; /* ? */ - - _mesa_swizzle_ubyte_image(ctx, dims, - GL_LUMINANCE_ALPHA, /* hack */ - GL_UNSIGNED_BYTE, /* hack */ - GL_LUMINANCE_ALPHA, /* hack */ - dstmap, 2, - dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcAddr, - srcPacking); - } - else { - /* general path - note this is defined for 2d textures only */ - const GLint components = _mesa_components_in_format(baseInternalFormat); - const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth, - srcFormat, srcType); - GLbyte *tempImage, *dst, *src; - GLint row; - - tempImage = (GLbyte *) malloc(srcWidth * srcHeight * srcDepth - * components * sizeof(GLbyte)); - if (!tempImage) - return GL_FALSE; - - src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - 0, 0, 0); - - dst = tempImage; - for (row = 0; row < srcHeight; row++) { - _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat, - dst, srcFormat, srcType, src, - srcPacking, 0); - dst += srcWidth * components; - src += srcStride; - } - - src = tempImage; - dst = (GLbyte *) dstAddr - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - memcpy(dst, src, srcWidth * texelBytes); - dst += dstRowStride; - src += srcWidth * texelBytes; - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Store a texture in a signed normalized 8-bit format. - */ -static GLboolean -_mesa_texstore_snorm8(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_A8 || - dstFormat == MESA_FORMAT_SIGNED_L8 || - dstFormat == MESA_FORMAT_SIGNED_I8 || - dstFormat == MESA_FORMAT_SIGNED_R8); - ASSERT(texelBytes == 1); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLbyte *dstRow = (GLbyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - for (col = 0; col < srcWidth; col++) { - dstRow[col] = FLOAT_TO_BYTE_TEX(src[col]); - } - dstRow += dstRowStride; - src += srcWidth; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Store a texture in a signed normalized two-channel 16-bit format. - */ -static GLboolean -_mesa_texstore_snorm88(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL88 || - dstFormat == MESA_FORMAT_SIGNED_RG88_REV); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_BYTE && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLbyte *dstRow = (GLbyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLbyte *dst = dstRow; - for (col = 0; col < srcWidth; col++) { - dst[0] = FLOAT_TO_BYTE_TEX(src[0]); - dst[1] = FLOAT_TO_BYTE_TEX(src[1]); - src += 2; - dst += 2; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - -/* Texstore for signed R16, A16, L16, I16. */ -static GLboolean -_mesa_texstore_snorm16(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_R16 || - dstFormat == MESA_FORMAT_SIGNED_A16 || - dstFormat == MESA_FORMAT_SIGNED_L16 || - dstFormat == MESA_FORMAT_SIGNED_I16); - ASSERT(texelBytes == 2); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_SHORT && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLshort *dstUS = (GLshort *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort r; - - UNCLAMPED_FLOAT_TO_SHORT(r, src[0]); - dstUS[col] = r; - src += 1; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - -/** - * Do texstore for 2-channel, 16-bit/channel, signed normalized formats. - */ -static GLboolean -_mesa_texstore_snorm1616(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL1616 || - dstFormat == MESA_FORMAT_SIGNED_GR1616); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_SHORT && - littleEndian) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLshort *dst = (GLshort *) dstRow; - for (col = 0; col < srcWidth; col++) { - GLushort l, a; - - UNCLAMPED_FLOAT_TO_SHORT(l, src[0]); - UNCLAMPED_FLOAT_TO_SHORT(a, src[1]); - dst[0] = l; - dst[1] = a; - src += 2; - dst += 2; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - -/** - * Store a texture in MESA_FORMAT_SIGNED_RGBX8888. - */ -static GLboolean -_mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBX8888); - ASSERT(texelBytes == 4); - - { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *srcRow = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLbyte *dstRow = (GLbyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLbyte *dst = dstRow; - for (col = 0; col < srcWidth; col++) { - dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); - dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); - dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); - dst[0] = 127; - srcRow += 3; - dst += 4; - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - - -/** - * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or - * MESA_FORMAT_SIGNED_RGBA8888_REV - */ -static GLboolean -_mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS) -{ - const GLboolean littleEndian = _mesa_little_endian(); - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - - ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 || - dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV); - ASSERT(texelBytes == 4); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_SIGNED_RGBA8888 && - baseInternalFormat == GL_RGBA && - ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) || - (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV && - baseInternalFormat == GL_RGBA && - ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) || - (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *srcRow = tempImage; - GLint img, row, col; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLbyte *dstRow = (GLbyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLbyte *dst = dstRow; - if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) { - for (col = 0; col < srcWidth; col++) { - dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); - dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); - dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); - dst[0] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]); - srcRow += 4; - dst += 4; - } - } - else { - for (col = 0; col < srcWidth; col++) { - dst[0] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); - dst[1] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); - dst[2] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); - dst[3] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]); - srcRow += 4; - dst += 4; - } - } - dstRow += dstRowStride; - } - } - free((void *) tempImage); - } - return GL_TRUE; -} - - -/** - * Store a combined depth/stencil texture image. - */ -static GLboolean -_mesa_texstore_z24_s8(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffffff; - const GLint srcRowStride - = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) - / sizeof(GLuint); - GLint img, row; - - ASSERT(dstFormat == MESA_FORMAT_Z24_S8); - ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT); - ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT); - - if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f && - ctx->Pixel.DepthBias == 0.0f && - !srcPacking->SwapBytes) { - /* simple path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else if (srcFormat == GL_DEPTH_COMPONENT) { - /* In case we only upload depth we need to preserve the stencil */ - for (img = 0; img < srcDepth; img++) { - GLuint *dstRow = (GLuint *) dstAddr - + dstImageOffsets[dstZoffset + img] - + dstYoffset * dstRowStride / sizeof(GLuint) - + dstXoffset; - const GLuint *src - = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - GLuint depth[MAX_WIDTH]; - GLubyte stencil[MAX_WIDTH]; - GLint i; - GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE; - - if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ - keepstencil = GL_TRUE; - } - else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ - keepdepth = GL_TRUE; - } - - if (keepdepth == GL_FALSE) - /* the 24 depth bits will be in the low position: */ - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_INT, /* dst type */ - keepstencil ? depth : dstRow, /* dst addr */ - depthScale, - srcType, src, srcPacking); - - if (keepstencil == GL_FALSE) - /* get the 8-bit stencil values */ - _mesa_unpack_stencil_span(ctx, srcWidth, - GL_UNSIGNED_BYTE, /* dst type */ - stencil, /* dst addr */ - srcType, src, srcPacking, - ctx->_ImageTransferState); - - for (i = 0; i < srcWidth; i++) { - if (keepstencil) - dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF); - else - dstRow[i] = (dstRow[i] & 0xFFFFFF00) | (stencil[i] & 0xFF); - } - - src += srcRowStride; - dstRow += dstRowStride / sizeof(GLuint); - } - } - } - return GL_TRUE; -} - - -/** - * Store a combined depth/stencil texture image. - */ -static GLboolean -_mesa_texstore_s8_z24(TEXSTORE_PARAMS) -{ - const GLuint depthScale = 0xffffff; - const GLint srcRowStride - = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) - / sizeof(GLuint); - GLint img, row; - - ASSERT(dstFormat == MESA_FORMAT_S8_Z24); - ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || - srcFormat == GL_DEPTH_COMPONENT || - srcFormat == GL_STENCIL_INDEX); - ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || - srcType == GL_UNSIGNED_INT_24_8_EXT); - - for (img = 0; img < srcDepth; img++) { - GLuint *dstRow = (GLuint *) dstAddr - + dstImageOffsets[dstZoffset + img] - + dstYoffset * dstRowStride / sizeof(GLuint) - + dstXoffset; - const GLuint *src - = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - GLuint depth[MAX_WIDTH]; - GLubyte stencil[MAX_WIDTH]; - GLint i; - GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE; - - if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ - keepstencil = GL_TRUE; - } - else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ - keepdepth = GL_TRUE; - } - - if (keepdepth == GL_FALSE) - /* the 24 depth bits will be in the low position: */ - _mesa_unpack_depth_span(ctx, srcWidth, - GL_UNSIGNED_INT, /* dst type */ - keepstencil ? depth : dstRow, /* dst addr */ - depthScale, - srcType, src, srcPacking); - - if (keepstencil == GL_FALSE) - /* get the 8-bit stencil values */ - _mesa_unpack_stencil_span(ctx, srcWidth, - GL_UNSIGNED_BYTE, /* dst type */ - stencil, /* dst addr */ - srcType, src, srcPacking, - ctx->_ImageTransferState); - - /* merge stencil values into depth values */ - for (i = 0; i < srcWidth; i++) { - if (keepstencil) - dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000); - else - dstRow[i] = (dstRow[i] & 0xFFFFFF) | (stencil[i] << 24); - - } - src += srcRowStride; - dstRow += dstRowStride / sizeof(GLuint); - } - } - return GL_TRUE; -} - - -/** - * Store simple 8-bit/value stencil texture data. - */ -static GLboolean -_mesa_texstore_s8(TEXSTORE_PARAMS) -{ - ASSERT(dstFormat == MESA_FORMAT_S8); - ASSERT(srcFormat == GL_STENCIL_INDEX); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - const GLint srcRowStride - = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) - / sizeof(GLuint); - GLint img, row; - - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] - + dstYoffset * dstRowStride / sizeof(GLuint) - + dstXoffset; - const GLuint *src - = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - GLubyte stencil[MAX_WIDTH]; - GLint i; - - /* get the 8-bit stencil values */ - _mesa_unpack_stencil_span(ctx, srcWidth, - GL_UNSIGNED_BYTE, /* dst type */ - stencil, /* dst addr */ - srcType, src, srcPacking, - ctx->_ImageTransferState); - /* merge stencil values into depth values */ - for (i = 0; i < srcWidth; i++) - dstRow[i] = stencil[i]; - - src += srcRowStride; - dstRow += dstRowStride / sizeof(GLubyte); - } - } - - } - - return GL_TRUE; -} - - -/** - * Store an image in any of the formats: - * _mesa_texformat_rgba_float32 - * _mesa_texformat_rgb_float32 - * _mesa_texformat_alpha_float32 - * _mesa_texformat_luminance_float32 - * _mesa_texformat_luminance_alpha_float32 - * _mesa_texformat_intensity_float32 - */ -static GLboolean -_mesa_texstore_rgba_float32(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 || - dstFormat == MESA_FORMAT_RGB_FLOAT32 || - dstFormat == MESA_FORMAT_ALPHA_FLOAT32 || - dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 || - dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 || - dstFormat == MESA_FORMAT_INTENSITY_FLOAT32 || - dstFormat == MESA_FORMAT_R_FLOAT32 || - dstFormat == MESA_FORMAT_RG_FLOAT32); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY || - baseInternalFormat == GL_RED || - baseInternalFormat == GL_RG); - ASSERT(texelBytes == components * sizeof(GLfloat)); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - baseInternalFormat == baseFormat && - srcType == GL_FLOAT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *srcRow = tempImage; - GLint bytesPerRow; - GLint img, row; - if (!tempImage) - return GL_FALSE; - bytesPerRow = srcWidth * components * sizeof(GLfloat); - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - memcpy(dstRow, srcRow, bytesPerRow); - dstRow += dstRowStride; - srcRow += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - - -/** - * As above, but store 16-bit floats. - */ -static GLboolean -_mesa_texstore_rgba_float16(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 || - dstFormat == MESA_FORMAT_RGB_FLOAT16 || - dstFormat == MESA_FORMAT_ALPHA_FLOAT16 || - dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 || - dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 || - dstFormat == MESA_FORMAT_INTENSITY_FLOAT16 || - dstFormat == MESA_FORMAT_R_FLOAT16 || - dstFormat == MESA_FORMAT_RG_FLOAT16); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY || - baseInternalFormat == GL_RED || - baseInternalFormat == GL_RG); - ASSERT(texelBytes == components * sizeof(GLhalfARB)); - - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - baseInternalFormat == baseFormat && - srcType == GL_HALF_FLOAT_ARB) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, - ctx->_ImageTransferState); - const GLfloat *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLhalfARB *dstTexel = (GLhalfARB *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = _mesa_float_to_half(src[i]); - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, signed int8 */ -static GLboolean -_mesa_texstore_rgba_int8(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_INT8); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLbyte)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, 0x0); - const GLfloat *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLbyte *dstTexel = (GLbyte *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = (GLbyte) src[i]; - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, signed int16 */ -static GLboolean -_mesa_texstore_rgba_int16(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_INT16); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLshort)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_SHORT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, 0x0); - const GLfloat *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLshort *dstTexel = (GLshort *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = (GLint) src[i]; - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, signed int32 */ -static GLboolean -_mesa_texstore_rgba_int32(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_INT32); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLint)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_INT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, - baseInternalFormat, - baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, - srcPacking, 0x0); - const GLfloat *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLint *dstTexel = (GLint *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = (GLint) src[i]; - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, unsigned int8 */ -static GLboolean -_mesa_texstore_rgba_uint8(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT8); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLubyte)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLuint *tempImage = - make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, srcPacking); - const GLuint *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLubyte *dstTexel = (GLubyte *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = (GLubyte) CLAMP(src[i], 0, 0xff); - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, unsigned int16 */ -static GLboolean -_mesa_texstore_rgba_uint16(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT16); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLushort)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_SHORT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLuint *tempImage = - make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, srcPacking); - const GLuint *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLushort *dstTexel = (GLushort *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = (GLushort) CLAMP(src[i], 0, 0xffff); - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - -/* non-normalized, unsigned int32 */ -static GLboolean -_mesa_texstore_rgba_uint32(TEXSTORE_PARAMS) -{ - const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); - const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); - const GLint components = _mesa_components_in_format(baseFormat); - - ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT32); - ASSERT(baseInternalFormat == GL_RGBA || - baseInternalFormat == GL_RGB || - baseInternalFormat == GL_ALPHA || - baseInternalFormat == GL_LUMINANCE || - baseInternalFormat == GL_LUMINANCE_ALPHA || - baseInternalFormat == GL_INTENSITY); - ASSERT(texelBytes == components * sizeof(GLuint)); - - /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply - * to integer formats. - */ - if (!srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_INT) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } - else { - /* general path */ - const GLuint *tempImage = - make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, srcPacking); - const GLuint *src = tempImage; - GLint img, row; - if (!tempImage) - return GL_FALSE; - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] * texelBytes - + dstYoffset * dstRowStride - + dstXoffset * texelBytes; - for (row = 0; row < srcHeight; row++) { - GLuint *dstTexel = (GLuint *) dstRow; - GLint i; - for (i = 0; i < srcWidth * components; i++) { - dstTexel[i] = src[i]; - } - dstRow += dstRowStride; - src += srcWidth * components; - } - } - - free((void *) tempImage); - } - return GL_TRUE; -} - - - - -#if FEATURE_EXT_texture_sRGB -static GLboolean -_mesa_texstore_srgb8(TEXSTORE_PARAMS) -{ - gl_format newDstFormat; - GLboolean k; - - ASSERT(dstFormat == MESA_FORMAT_SRGB8); - - /* reuse normal rgb texstore code */ - newDstFormat = MESA_FORMAT_RGB888; - - k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); - return k; -} - - -static GLboolean -_mesa_texstore_srgba8(TEXSTORE_PARAMS) -{ - gl_format newDstFormat; - GLboolean k; - - ASSERT(dstFormat == MESA_FORMAT_SRGBA8); - - /* reuse normal rgba texstore code */ - newDstFormat = MESA_FORMAT_RGBA8888; - k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); - return k; -} - - -static GLboolean -_mesa_texstore_sargb8(TEXSTORE_PARAMS) -{ - gl_format newDstFormat; - GLboolean k; - - ASSERT(dstFormat == MESA_FORMAT_SARGB8); - - /* reuse normal rgba texstore code */ - newDstFormat = MESA_FORMAT_ARGB8888; - - k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); - return k; -} - - -static GLboolean -_mesa_texstore_sl8(TEXSTORE_PARAMS) -{ - gl_format newDstFormat; - GLboolean k; - - ASSERT(dstFormat == MESA_FORMAT_SL8); - - newDstFormat = MESA_FORMAT_L8; - - /* _mesa_textore_a8 handles luminance8 too */ - k = _mesa_texstore_unorm8(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); - return k; -} - - -static GLboolean -_mesa_texstore_sla8(TEXSTORE_PARAMS) -{ - gl_format newDstFormat; - GLboolean k; - - ASSERT(dstFormat == MESA_FORMAT_SLA8); - - /* reuse normal luminance/alpha texstore code */ - newDstFormat = MESA_FORMAT_AL88; - - k = _mesa_texstore_unorm88(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); - return k; -} - -#else - -/* these are used only in texstore_funcs[] below */ -#define _mesa_texstore_srgb8 NULL -#define _mesa_texstore_srgba8 NULL -#define _mesa_texstore_sargb8 NULL -#define _mesa_texstore_sl8 NULL -#define _mesa_texstore_sla8 NULL - -#endif /* FEATURE_EXT_texture_sRGB */ - - - - -/** - * Table mapping MESA_FORMAT_* to _mesa_texstore_*() - * XXX this is somewhat temporary. - */ -static const struct { - gl_format Name; - StoreTexImageFunc Store; -} -texstore_funcs[MESA_FORMAT_COUNT] = -{ - { MESA_FORMAT_NONE, NULL }, - { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 }, - { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 }, - { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 }, - { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 }, - { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 }, - { MESA_FORMAT_XRGB8888_REV, _mesa_texstore_argb8888 }, - { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 }, - { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 }, - { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 }, - { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 }, - { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 }, - { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 }, - { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 }, - { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 }, - { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 }, - { MESA_FORMAT_AL44, _mesa_texstore_unorm44 }, - { MESA_FORMAT_AL88, _mesa_texstore_unorm88 }, - { MESA_FORMAT_AL88_REV, _mesa_texstore_unorm88 }, - { MESA_FORMAT_AL1616, _mesa_texstore_unorm1616 }, - { MESA_FORMAT_AL1616_REV, _mesa_texstore_unorm1616 }, - { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 }, - { MESA_FORMAT_A8, _mesa_texstore_unorm8 }, - { MESA_FORMAT_A16, _mesa_texstore_unorm16 }, - { MESA_FORMAT_L8, _mesa_texstore_unorm8 }, - { MESA_FORMAT_L16, _mesa_texstore_unorm16 }, - { MESA_FORMAT_I8, _mesa_texstore_unorm8 }, - { MESA_FORMAT_I16, _mesa_texstore_unorm16 }, - { MESA_FORMAT_CI8, _mesa_texstore_ci8 }, - { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr }, - { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr }, - { MESA_FORMAT_R8, _mesa_texstore_unorm8 }, - { MESA_FORMAT_RG88, _mesa_texstore_unorm88 }, - { MESA_FORMAT_RG88_REV, _mesa_texstore_unorm88 }, - { MESA_FORMAT_R16, _mesa_texstore_unorm16 }, - { MESA_FORMAT_RG1616, _mesa_texstore_unorm1616 }, - { MESA_FORMAT_RG1616_REV, _mesa_texstore_unorm1616 }, - { MESA_FORMAT_ARGB2101010, _mesa_texstore_argb2101010 }, - { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 }, - { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 }, - { MESA_FORMAT_Z16, _mesa_texstore_z16 }, - { MESA_FORMAT_X8_Z24, _mesa_texstore_x8_z24 }, - { MESA_FORMAT_Z24_X8, _mesa_texstore_z24_x8 }, - { MESA_FORMAT_Z32, _mesa_texstore_z32 }, - { MESA_FORMAT_S8, _mesa_texstore_s8 }, - { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 }, - { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 }, - { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 }, - { MESA_FORMAT_SL8, _mesa_texstore_sl8 }, - { MESA_FORMAT_SLA8, _mesa_texstore_sla8 }, - { MESA_FORMAT_SRGB_DXT1, _mesa_texstore_rgb_dxt1 }, - { MESA_FORMAT_SRGBA_DXT1, _mesa_texstore_rgba_dxt1 }, - { MESA_FORMAT_SRGBA_DXT3, _mesa_texstore_rgba_dxt3 }, - { MESA_FORMAT_SRGBA_DXT5, _mesa_texstore_rgba_dxt5 }, - { MESA_FORMAT_RGB_FXT1, _mesa_texstore_rgb_fxt1 }, - { MESA_FORMAT_RGBA_FXT1, _mesa_texstore_rgba_fxt1 }, - { MESA_FORMAT_RGB_DXT1, _mesa_texstore_rgb_dxt1 }, - { MESA_FORMAT_RGBA_DXT1, _mesa_texstore_rgba_dxt1 }, - { MESA_FORMAT_RGBA_DXT3, _mesa_texstore_rgba_dxt3 }, - { MESA_FORMAT_RGBA_DXT5, _mesa_texstore_rgba_dxt5 }, - { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_R_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_R_FLOAT16, _mesa_texstore_rgba_float16 }, - { MESA_FORMAT_RG_FLOAT32, _mesa_texstore_rgba_float32 }, - { MESA_FORMAT_RG_FLOAT16, _mesa_texstore_rgba_float16 }, - - { MESA_FORMAT_RGBA_INT8, _mesa_texstore_rgba_int8 }, - { MESA_FORMAT_RGBA_INT16, _mesa_texstore_rgba_int16 }, - { MESA_FORMAT_RGBA_INT32, _mesa_texstore_rgba_int32 }, - { MESA_FORMAT_RGBA_UINT8, _mesa_texstore_rgba_uint8 }, - { MESA_FORMAT_RGBA_UINT16, _mesa_texstore_rgba_uint16 }, - { MESA_FORMAT_RGBA_UINT32, _mesa_texstore_rgba_uint32 }, - - { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 }, - - { MESA_FORMAT_SIGNED_R8, _mesa_texstore_snorm8 }, - { MESA_FORMAT_SIGNED_RG88_REV, _mesa_texstore_snorm88 }, - { MESA_FORMAT_SIGNED_RGBX8888, _mesa_texstore_signed_rgbx8888 }, - - { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 }, - { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 }, - - { MESA_FORMAT_SIGNED_R16, _mesa_texstore_snorm16 }, - { MESA_FORMAT_SIGNED_GR1616, _mesa_texstore_snorm1616 }, - { MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 }, - { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 }, - { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }, - - { MESA_FORMAT_RED_RGTC1, _mesa_texstore_red_rgtc1 }, - { MESA_FORMAT_SIGNED_RED_RGTC1, _mesa_texstore_signed_red_rgtc1 }, - { MESA_FORMAT_RG_RGTC2, _mesa_texstore_rg_rgtc2 }, - { MESA_FORMAT_SIGNED_RG_RGTC2, _mesa_texstore_signed_rg_rgtc2 }, - - /* Re-use the R/RG texstore functions. - * The code is generic enough to handle LATC too. */ - { MESA_FORMAT_L_LATC1, _mesa_texstore_red_rgtc1 }, - { MESA_FORMAT_SIGNED_L_LATC1, _mesa_texstore_signed_red_rgtc1 }, - { MESA_FORMAT_LA_LATC2, _mesa_texstore_rg_rgtc2 }, - { MESA_FORMAT_SIGNED_LA_LATC2, _mesa_texstore_signed_rg_rgtc2 }, - - { MESA_FORMAT_SIGNED_A8, _mesa_texstore_snorm8 }, - { MESA_FORMAT_SIGNED_L8, _mesa_texstore_snorm8 }, - { MESA_FORMAT_SIGNED_AL88, _mesa_texstore_snorm88 }, - { MESA_FORMAT_SIGNED_I8, _mesa_texstore_snorm8 }, - - { MESA_FORMAT_SIGNED_A16, _mesa_texstore_snorm16 }, - { MESA_FORMAT_SIGNED_L16, _mesa_texstore_snorm16 }, - { MESA_FORMAT_SIGNED_AL1616, _mesa_texstore_snorm1616 }, - { MESA_FORMAT_SIGNED_I16, _mesa_texstore_snorm16 }, -}; - - -static GLboolean -_mesa_texstore_null(TEXSTORE_PARAMS) -{ - (void) ctx; (void) dims; - (void) baseInternalFormat; - (void) dstFormat; - (void) dstAddr; - (void) dstXoffset; (void) dstYoffset; (void) dstZoffset; - (void) dstRowStride; (void) dstImageOffsets; - (void) srcWidth; (void) srcHeight; (void) srcDepth; - (void) srcFormat; (void) srcType; - (void) srcAddr; - (void) srcPacking; - - /* should never happen */ - _mesa_problem(NULL, "_mesa_texstore_null() is called"); - return GL_FALSE; -} - - -/** - * Return the StoreTexImageFunc pointer to store an image in the given format. - */ -static StoreTexImageFunc -_mesa_get_texstore_func(gl_format format) -{ -#ifdef DEBUG - GLuint i; - for (i = 0; i < MESA_FORMAT_COUNT; i++) { - ASSERT(texstore_funcs[i].Name == i); - } -#endif - ASSERT(texstore_funcs[format].Name == format); - - if (texstore_funcs[format].Store) - return texstore_funcs[format].Store; - else - return _mesa_texstore_null; -} - - -/** - * Store user data into texture memory. - * Called via glTex[Sub]Image1/2/3D() - */ -GLboolean -_mesa_texstore(TEXSTORE_PARAMS) -{ - StoreTexImageFunc storeImage; - GLboolean success; - - storeImage = _mesa_get_texstore_func(dstFormat); - - success = storeImage(ctx, dims, baseInternalFormat, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, srcAddr, srcPacking); - return success; -} - - -/** Return texture size in bytes */ -static GLuint -texture_size(const struct gl_texture_image *texImage) -{ - GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width, - texImage->Height, texImage->Depth); - return sz; -} - - -/** Return row stride in bytes */ -static GLuint -texture_row_stride(const struct gl_texture_image *texImage) -{ - GLuint stride = _mesa_format_row_stride(texImage->TexFormat, - texImage->Width); - return stride; -} - - - -/** - * This is the software fallback for Driver.TexImage1D() - * and Driver.CopyTexImage1D(). - * \sa _mesa_store_teximage2d() - */ -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) -{ - GLuint sizeInBytes; - (void) border; - - /* allocate memory */ - sizeInBytes = texture_size(texImage); - texImage->Data = _mesa_alloc_texmemory(sizeInBytes); - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); - return; - } - - pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, - pixels, packing, "glTexImage1D"); - if (!pixels) { - /* Note: we check for a NULL image pointer here, _after_ we allocated - * memory for the texture. That's what the GL spec calls for. - */ - return; - } - else { - const GLint dstRowStride = 0; - GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, - texImage->ImageOffsets, - width, 1, 1, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - -/** - * This is the software fallback for Driver.TexImage2D() - * and Driver.CopyTexImage2D(). - * - * This function is oriented toward storing images in main memory, rather - * than VRAM. Device driver's can easily plug in their own replacement. - */ -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 void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - GLuint sizeInBytes; - (void) border; - - /* allocate memory */ - sizeInBytes = texture_size(texImage); - texImage->Data = _mesa_alloc_texmemory(sizeInBytes); - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); - return; - } - - pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type, - pixels, packing, "glTexImage2D"); - if (!pixels) { - /* Note: we check for a NULL image pointer here, _after_ we allocated - * memory for the texture. That's what the GL spec calls for. - */ - return; - } - else { - GLint dstRowStride = texture_row_stride(texImage); - GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, - texImage->ImageOffsets, - width, height, 1, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - - -/** - * This is the software fallback for Driver.TexImage3D() - * and Driver.CopyTexImage3D(). - * \sa _mesa_store_teximage2d() - */ -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 void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - GLuint sizeInBytes; - (void) border; - - /* allocate memory */ - sizeInBytes = texture_size(texImage); - texImage->Data = _mesa_alloc_texmemory(sizeInBytes); - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); - return; - } - - pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, - type, pixels, packing, "glTexImage3D"); - if (!pixels) { - /* Note: we check for a NULL image pointer here, _after_ we allocated - * memory for the texture. That's what the GL spec calls for. - */ - return; - } - else { - GLint dstRowStride = texture_row_stride(texImage); - GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - 0, 0, 0, /* dstX/Y/Zoffset */ - dstRowStride, - texImage->ImageOffsets, - width, height, depth, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - - - -/* - * This is the software fallback for Driver.TexSubImage1D() - * and Driver.CopyTexSubImage1D(). - */ -void -_mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level, - GLint xoffset, GLint width, - GLenum format, GLenum type, const void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - /* get pointer to src pixels (may be in a pbo which we'll map here) */ - pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, - pixels, packing, "glTexSubImage1D"); - if (!pixels) - return; - - { - const GLint dstRowStride = 0; - GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - xoffset, 0, 0, /* offsets */ - dstRowStride, - texImage->ImageOffsets, - width, 1, 1, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - - -/** - * This is the software fallback for Driver.TexSubImage2D() - * and Driver.CopyTexSubImage2D(). - */ -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 void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - /* get pointer to src pixels (may be in a pbo which we'll map here) */ - pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type, - pixels, packing, "glTexSubImage2D"); - if (!pixels) - return; - - { - GLint dstRowStride = texture_row_stride(texImage); - GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - xoffset, yoffset, 0, - dstRowStride, - texImage->ImageOffsets, - width, height, 1, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - -/* - * This is the software fallback for Driver.TexSubImage3D(). - * and Driver.CopyTexSubImage3D(). - */ -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 void *pixels, - const struct gl_pixelstore_attrib *packing, - struct gl_texture_object *texObj, - struct gl_texture_image *texImage) -{ - /* get pointer to src pixels (may be in a pbo which we'll map here) */ - pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, - type, pixels, packing, - "glTexSubImage3D"); - if (!pixels) - return; - - { - GLint dstRowStride = texture_row_stride(texImage); - GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat, - texImage->TexFormat, - texImage->Data, - xoffset, yoffset, zoffset, - dstRowStride, - texImage->ImageOffsets, - width, height, depth, - format, type, pixels, packing); - if (!success) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D"); - } - } - - _mesa_unmap_teximage_pbo(ctx, packing); -} - - -/* - * Fallback for Driver.CompressedTexImage1D() - */ -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) -{ - /* this space intentionally left blank */ - (void) ctx; - (void) target; (void) level; - (void) internalFormat; - (void) width; (void) border; - (void) imageSize; (void) data; - (void) texObj; - (void) texImage; -} - - - -/** - * Fallback for Driver.CompressedTexImage2D() - */ -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) -{ - (void) width; (void) height; (void) border; - - /* This is pretty simple, basically just do a memcpy without worrying - * about the usual image unpacking or image transfer operations. - */ - ASSERT(texObj); - ASSERT(texImage); - ASSERT(texImage->Width > 0); - ASSERT(texImage->Height > 0); - ASSERT(texImage->Depth == 1); - ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */ - - /* allocate storage */ - texImage->Data = _mesa_alloc_texmemory(imageSize); - if (!texImage->Data) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB"); - return; - } - - data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, - &ctx->Unpack, - "glCompressedTexImage2D"); - if (!data) - return; - - /* copy the data */ - memcpy(texImage->Data, data, imageSize); - - _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack); -} - - - -/* - * Fallback for Driver.CompressedTexImage3D() - */ -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) -{ - /* this space intentionally left blank */ - (void) ctx; - (void) target; (void) level; - (void) internalFormat; - (void) width; (void) height; (void) depth; - (void) border; - (void) imageSize; (void) data; - (void) texObj; - (void) texImage; -} - - - -/** - * Fallback for Driver.CompressedTexSubImage1D() - */ -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) -{ - /* there are no compressed 1D texture formats yet */ - (void) ctx; - (void) target; (void) level; - (void) xoffset; (void) width; - (void) format; - (void) imageSize; (void) data; - (void) texObj; - (void) texImage; -} - - -/** - * Fallback for Driver.CompressedTexSubImage2D() - */ -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) -{ - GLint bytesPerRow, destRowStride, srcRowStride; - GLint i, rows; - GLubyte *dest; - const GLubyte *src; - const gl_format texFormat = texImage->TexFormat; - const GLint destWidth = texImage->Width; - GLuint bw, bh; - - _mesa_get_format_block_size(texFormat, &bw, &bh); - - (void) level; - (void) format; - - /* these should have been caught sooner */ - ASSERT((width % bw) == 0 || width == 2 || width == 1); - ASSERT((height % bh) == 0 || height == 2 || height == 1); - ASSERT((xoffset % bw) == 0); - ASSERT((yoffset % bh) == 0); - - /* get pointer to src pixels (may be in a pbo which we'll map here) */ - data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, - &ctx->Unpack, - "glCompressedTexSubImage2D"); - if (!data) - return; - - srcRowStride = _mesa_format_row_stride(texFormat, width); - src = (const GLubyte *) data; - - destRowStride = _mesa_format_row_stride(texFormat, destWidth); - dest = _mesa_compressed_image_address(xoffset, yoffset, 0, - texFormat, destWidth, - (GLubyte *) texImage->Data); - - bytesPerRow = srcRowStride; /* bytes per row of blocks */ - rows = height / bh; /* rows in blocks */ - - /* copy rows of blocks */ - for (i = 0; i < rows; i++) { - memcpy(dest, src, bytesPerRow); - dest += destRowStride; - src += srcRowStride; - } - - _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack); -} - - -/** - * Fallback for Driver.CompressedTexSubImage3D() - */ -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) -{ - /* there are no compressed 3D texture formats yet */ - (void) ctx; - (void) target; (void) level; - (void) xoffset; (void) yoffset; (void) zoffset; - (void) width; (void) height; (void) depth; - (void) format; - (void) imageSize; (void) data; - (void) texObj; - (void) texImage; -} +/* + * Mesa 3-D graphics library + * Version: 7.5 + * + * 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 + */ + +/** + * The GL texture image functions in teximage.c basically just do + * error checking and data structure allocation. They in turn call + * device driver functions which actually copy/convert/store the user's + * texture image data. + * + * However, most device drivers will be able to use the fallback functions + * in this file. That is, most drivers will have the following bit of + * code: + * ctx->Driver.TexImage1D = _mesa_store_teximage1d; + * ctx->Driver.TexImage2D = _mesa_store_teximage2d; + * ctx->Driver.TexImage3D = _mesa_store_teximage3d; + * etc... + * + * Texture image processing is actually kind of complicated. We have to do: + * Format/type conversions + * pixel unpacking + * pixel transfer (scale, bais, lookup, etc) + * + * These functions can handle most everything, including processing full + * images and sub-images. + */ + + +#include "glheader.h" +#include "bufferobj.h" +#include "colormac.h" +#include "image.h" +#include "macros.h" +#include "mipmap.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "pack.h" +#include "pbo.h" +#include "imports.h" +#include "texcompress.h" +#include "texcompress_fxt1.h" +#include "texcompress_rgtc.h" +#include "texcompress_s3tc.h" +#include "teximage.h" +#include "texstore.h" +#include "enums.h" +#include "../../gallium/auxiliary/util/u_format_rgb9e5.h" +#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" + + +enum { + ZERO = 4, + ONE = 5 +}; + + +/** + * Texture image storage function. + */ +typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS); + + +/** + * Return GL_TRUE if the given image format is one that be converted + * to another format by swizzling. + */ +static GLboolean +can_swizzle(GLenum logicalBaseFormat) +{ + switch (logicalBaseFormat) { + case GL_RGBA: + case GL_RGB: + case GL_LUMINANCE_ALPHA: + case GL_INTENSITY: + case GL_ALPHA: + case GL_LUMINANCE: + case GL_RED: + case GL_GREEN: + case GL_BLUE: + case GL_BGR: + case GL_BGRA: + case GL_ABGR_EXT: + case GL_RG: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + + +enum { + IDX_LUMINANCE = 0, + IDX_ALPHA, + IDX_INTENSITY, + IDX_LUMINANCE_ALPHA, + IDX_RGB, + IDX_RGBA, + IDX_RED, + IDX_GREEN, + IDX_BLUE, + IDX_BGR, + IDX_BGRA, + IDX_ABGR, + IDX_RG, + MAX_IDX +}; + +#define MAP1(x) MAP4(x, ZERO, ZERO, ZERO) +#define MAP2(x,y) MAP4(x, y, ZERO, ZERO) +#define MAP3(x,y,z) MAP4(x, y, z, ZERO) +#define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE } + + +static const struct { + GLubyte format_idx; + GLubyte to_rgba[6]; + GLubyte from_rgba[6]; +} mappings[MAX_IDX] = +{ + { + IDX_LUMINANCE, + MAP4(0,0,0,ONE), + MAP1(0) + }, + + { + IDX_ALPHA, + MAP4(ZERO, ZERO, ZERO, 0), + MAP1(3) + }, + + { + IDX_INTENSITY, + MAP4(0, 0, 0, 0), + MAP1(0), + }, + + { + IDX_LUMINANCE_ALPHA, + MAP4(0,0,0,1), + MAP2(0,3) + }, + + { + IDX_RGB, + MAP4(0,1,2,ONE), + MAP3(0,1,2) + }, + + { + IDX_RGBA, + MAP4(0,1,2,3), + MAP4(0,1,2,3), + }, + + { + IDX_RED, + MAP4(0, ZERO, ZERO, ONE), + MAP1(0), + }, + + { + IDX_GREEN, + MAP4(ZERO, 0, ZERO, ONE), + MAP1(1), + }, + + { + IDX_BLUE, + MAP4(ZERO, ZERO, 0, ONE), + MAP1(2), + }, + + { + IDX_BGR, + MAP4(2,1,0,ONE), + MAP3(2,1,0) + }, + + { + IDX_BGRA, + MAP4(2,1,0,3), + MAP4(2,1,0,3) + }, + + { + IDX_ABGR, + MAP4(3,2,1,0), + MAP4(3,2,1,0) + }, + + { + IDX_RG, + MAP4(0, 1, ZERO, ONE), + MAP2(0, 1) + }, +}; + + + +/** + * Convert a GL image format enum to an IDX_* value (see above). + */ +static int +get_map_idx(GLenum value) +{ + switch (value) { + case GL_LUMINANCE: return IDX_LUMINANCE; + case GL_ALPHA: return IDX_ALPHA; + case GL_INTENSITY: return IDX_INTENSITY; + case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA; + case GL_RGB: return IDX_RGB; + case GL_RGBA: return IDX_RGBA; + case GL_RED: return IDX_RED; + case GL_GREEN: return IDX_GREEN; + case GL_BLUE: return IDX_BLUE; + case GL_BGR: return IDX_BGR; + case GL_BGRA: return IDX_BGRA; + case GL_ABGR_EXT: return IDX_ABGR; + case GL_RG: return IDX_RG; + default: + _mesa_problem(NULL, "Unexpected inFormat"); + return 0; + } +} + + +/** + * When promoting texture formats (see below) we need to compute the + * mapping of dest components back to source components. + * This function does that. + * \param inFormat the incoming format of the texture + * \param outFormat the final texture format + * \return map[6] a full 6-component map + */ +static void +compute_component_mapping(GLenum inFormat, GLenum outFormat, + GLubyte *map) +{ + const int inFmt = get_map_idx(inFormat); + const int outFmt = get_map_idx(outFormat); + const GLubyte *in2rgba = mappings[inFmt].to_rgba; + const GLubyte *rgba2out = mappings[outFmt].from_rgba; + int i; + + for (i = 0; i < 4; i++) + map[i] = in2rgba[rgba2out[i]]; + + map[ZERO] = ZERO; + map[ONE] = ONE; + +#if 0 + printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n", + inFormat, _mesa_lookup_enum_by_nr(inFormat), + outFormat, _mesa_lookup_enum_by_nr(outFormat), + map[0], + map[1], + map[2], + map[3], + map[4], + map[5]); +#endif +} + + +/** + * Make a temporary (color) texture image with GLfloat components. + * Apply all needed pixel unpacking and pixel transfer operations. + * Note that there are both logicalBaseFormat and textureBaseFormat parameters. + * Suppose the user specifies GL_LUMINANCE as the internal texture format + * but the graphics hardware doesn't support luminance textures. So, we might + * use an RGB hardware format instead. + * If logicalBaseFormat != textureBaseFormat we have some extra work to do. + * + * \param ctx the rendering context + * \param dims image dimensions: 1, 2 or 3 + * \param logicalBaseFormat basic texture derived from the user's + * internal texture format value + * \param textureBaseFormat the actual basic format of the texture + * \param srcWidth source image width + * \param srcHeight source image height + * \param srcDepth source image depth + * \param srcFormat source image format + * \param srcType source image type + * \param srcAddr source image address + * \param srcPacking source image pixel packing + * \return resulting image with format = textureBaseFormat and type = GLfloat. + */ +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) +{ + GLfloat *tempImage; + const GLint components = _mesa_components_in_format(logicalBaseFormat); + const GLint srcStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLfloat *dst; + GLint img, row; + + ASSERT(dims >= 1 && dims <= 3); + + ASSERT(logicalBaseFormat == GL_RGBA || + logicalBaseFormat == GL_RGB || + logicalBaseFormat == GL_RG || + logicalBaseFormat == GL_RED || + logicalBaseFormat == GL_LUMINANCE_ALPHA || + logicalBaseFormat == GL_LUMINANCE || + logicalBaseFormat == GL_ALPHA || + logicalBaseFormat == GL_INTENSITY || + logicalBaseFormat == GL_COLOR_INDEX || + logicalBaseFormat == GL_DEPTH_COMPONENT); + + ASSERT(textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_RGB || + textureBaseFormat == GL_RG || + textureBaseFormat == GL_RED || + textureBaseFormat == GL_LUMINANCE_ALPHA || + textureBaseFormat == GL_LUMINANCE || + textureBaseFormat == GL_ALPHA || + textureBaseFormat == GL_INTENSITY || + textureBaseFormat == GL_COLOR_INDEX || + textureBaseFormat == GL_DEPTH_COMPONENT); + + tempImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth + * components * sizeof(GLfloat)); + if (!tempImage) + return NULL; + + dst = tempImage; + for (img = 0; img < srcDepth; img++) { + const GLubyte *src + = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat, + dst, srcFormat, srcType, src, + srcPacking, transferOps); + dst += srcWidth * components; + src += srcStride; + } + } + + if (logicalBaseFormat != textureBaseFormat) { + /* more work */ + GLint texComponents = _mesa_components_in_format(textureBaseFormat); + GLint logComponents = _mesa_components_in_format(logicalBaseFormat); + GLfloat *newImage; + GLint i, n; + GLubyte map[6]; + + /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ + ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_LUMINANCE_ALPHA); + + /* The actual texture format should have at least as many components + * as the logical texture format. + */ + ASSERT(texComponents >= logComponents); + + newImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth + * texComponents * sizeof(GLfloat)); + if (!newImage) { + free(tempImage); + return NULL; + } + + compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); + + n = srcWidth * srcHeight * srcDepth; + for (i = 0; i < n; i++) { + GLint k; + for (k = 0; k < texComponents; k++) { + GLint j = map[k]; + if (j == ZERO) + newImage[i * texComponents + k] = 0.0F; + else if (j == ONE) + newImage[i * texComponents + k] = 1.0F; + else + newImage[i * texComponents + k] = tempImage[i * logComponents + j]; + } + } + + free(tempImage); + tempImage = newImage; + } + + return tempImage; +} + + +/** + * Make temporary image with uint pixel values. Used for unsigned + * integer-valued textures. + */ +static GLuint * +make_temp_uint_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) +{ + GLuint *tempImage; + const GLint components = _mesa_components_in_format(logicalBaseFormat); + const GLint srcStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLuint *dst; + GLint img, row; + + ASSERT(dims >= 1 && dims <= 3); + + ASSERT(logicalBaseFormat == GL_RGBA || + logicalBaseFormat == GL_RGB || + logicalBaseFormat == GL_RG || + logicalBaseFormat == GL_RED || + logicalBaseFormat == GL_LUMINANCE_ALPHA || + logicalBaseFormat == GL_LUMINANCE || + logicalBaseFormat == GL_INTENSITY || + logicalBaseFormat == GL_ALPHA); + + ASSERT(textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_RGB || + textureBaseFormat == GL_RG || + textureBaseFormat == GL_RED || + textureBaseFormat == GL_LUMINANCE_ALPHA || + textureBaseFormat == GL_LUMINANCE || + textureBaseFormat == GL_ALPHA); + + tempImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth + * components * sizeof(GLuint)); + if (!tempImage) + return NULL; + + dst = tempImage; + for (img = 0; img < srcDepth; img++) { + const GLubyte *src + = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + _mesa_unpack_color_span_uint(ctx, srcWidth, logicalBaseFormat, + dst, srcFormat, srcType, src, + srcPacking); + dst += srcWidth * components; + src += srcStride; + } + } + + if (logicalBaseFormat != textureBaseFormat) { + /* more work */ + GLint texComponents = _mesa_components_in_format(textureBaseFormat); + GLint logComponents = _mesa_components_in_format(logicalBaseFormat); + GLuint *newImage; + GLint i, n; + GLubyte map[6]; + + /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ + ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_LUMINANCE_ALPHA); + + /* The actual texture format should have at least as many components + * as the logical texture format. + */ + ASSERT(texComponents >= logComponents); + + newImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth + * texComponents * sizeof(GLuint)); + if (!newImage) { + free(tempImage); + return NULL; + } + + compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); + + n = srcWidth * srcHeight * srcDepth; + for (i = 0; i < n; i++) { + GLint k; + for (k = 0; k < texComponents; k++) { + GLint j = map[k]; + if (j == ZERO) + newImage[i * texComponents + k] = 0.0F; + else if (j == ONE) + newImage[i * texComponents + k] = 1.0F; + else + newImage[i * texComponents + k] = tempImage[i * logComponents + j]; + } + } + + free(tempImage); + tempImage = newImage; + } + + return tempImage; +} + + + +/** + * Make a temporary (color) texture image with GLchan components. + * Apply all needed pixel unpacking and pixel transfer operations. + * Note that there are both logicalBaseFormat and textureBaseFormat parameters. + * Suppose the user specifies GL_LUMINANCE as the internal texture format + * but the graphics hardware doesn't support luminance textures. So, we might + * use an RGB hardware format instead. + * If logicalBaseFormat != textureBaseFormat we have some extra work to do. + * + * \param ctx the rendering context + * \param dims image dimensions: 1, 2 or 3 + * \param logicalBaseFormat basic texture derived from the user's + * internal texture format value + * \param textureBaseFormat the actual basic format of the texture + * \param srcWidth source image width + * \param srcHeight source image height + * \param srcDepth source image depth + * \param srcFormat source image format + * \param srcType source image type + * \param srcAddr source image address + * \param srcPacking source image pixel packing + * \return resulting image with format = textureBaseFormat and type = GLchan. + */ +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) +{ + GLuint transferOps = ctx->_ImageTransferState; + const GLint components = _mesa_components_in_format(logicalBaseFormat); + GLint img, row; + GLchan *tempImage, *dst; + + ASSERT(dims >= 1 && dims <= 3); + + ASSERT(logicalBaseFormat == GL_RGBA || + logicalBaseFormat == GL_RGB || + logicalBaseFormat == GL_RG || + logicalBaseFormat == GL_RED || + logicalBaseFormat == GL_LUMINANCE_ALPHA || + logicalBaseFormat == GL_LUMINANCE || + logicalBaseFormat == GL_ALPHA || + logicalBaseFormat == GL_INTENSITY); + + ASSERT(textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_RGB || + textureBaseFormat == GL_RG || + textureBaseFormat == GL_RED || + textureBaseFormat == GL_LUMINANCE_ALPHA || + textureBaseFormat == GL_LUMINANCE || + textureBaseFormat == GL_ALPHA || + textureBaseFormat == GL_INTENSITY); + + /* unpack and transfer the source image */ + tempImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth + * components * sizeof(GLchan)); + if (!tempImage) { + return NULL; + } + + dst = tempImage; + for (img = 0; img < srcDepth; img++) { + const GLint srcStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + const GLubyte *src = + (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + _mesa_unpack_color_span_chan(ctx, srcWidth, logicalBaseFormat, dst, + srcFormat, srcType, src, srcPacking, + transferOps); + dst += srcWidth * components; + src += srcStride; + } + } + + if (logicalBaseFormat != textureBaseFormat) { + /* one more conversion step */ + GLint texComponents = _mesa_components_in_format(textureBaseFormat); + GLint logComponents = _mesa_components_in_format(logicalBaseFormat); + GLchan *newImage; + GLint i, n; + GLubyte map[6]; + + /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */ + ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA || + textureBaseFormat == GL_LUMINANCE_ALPHA); + + /* The actual texture format should have at least as many components + * as the logical texture format. + */ + ASSERT(texComponents >= logComponents); + + newImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth + * texComponents * sizeof(GLchan)); + if (!newImage) { + free(tempImage); + return NULL; + } + + compute_component_mapping(logicalBaseFormat, textureBaseFormat, map); + + n = srcWidth * srcHeight * srcDepth; + for (i = 0; i < n; i++) { + GLint k; + for (k = 0; k < texComponents; k++) { + GLint j = map[k]; + if (j == ZERO) + newImage[i * texComponents + k] = 0; + else if (j == ONE) + newImage[i * texComponents + k] = CHAN_MAX; + else + newImage[i * texComponents + k] = tempImage[i * logComponents + j]; + } + } + + free(tempImage); + tempImage = newImage; + } + + return tempImage; +} + + +/** + * Copy GLubyte pixels from to with swizzling. + * \param dst destination pixels + * \param dstComponents number of color components in destination pixels + * \param src source pixels + * \param srcComponents number of color components in source pixels + * \param map the swizzle mapping. map[X] says where to find the X component + * in the source image's pixels. For example, if the source image + * is GL_BGRA and X = red, map[0] yields 2. + * \param count number of pixels to copy/swizzle. + */ +static void +swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src, + GLuint srcComponents, const GLubyte *map, GLuint count) +{ +#define SWZ_CPY(dst, src, count, dstComps, srcComps) \ + do { \ + GLuint i; \ + for (i = 0; i < count; i++) { \ + GLuint j; \ + if (srcComps == 4) { \ + COPY_4UBV(tmp, src); \ + } \ + else { \ + for (j = 0; j < srcComps; j++) { \ + tmp[j] = src[j]; \ + } \ + } \ + src += srcComps; \ + for (j = 0; j < dstComps; j++) { \ + dst[j] = tmp[map[j]]; \ + } \ + dst += dstComps; \ + } \ + } while (0) + + GLubyte tmp[6]; + + tmp[ZERO] = 0x0; + tmp[ONE] = 0xff; + + ASSERT(srcComponents <= 4); + ASSERT(dstComponents <= 4); + + switch (dstComponents) { + case 4: + switch (srcComponents) { + case 4: + SWZ_CPY(dst, src, count, 4, 4); + break; + case 3: + SWZ_CPY(dst, src, count, 4, 3); + break; + case 2: + SWZ_CPY(dst, src, count, 4, 2); + break; + case 1: + SWZ_CPY(dst, src, count, 4, 1); + break; + default: + ; + } + break; + case 3: + switch (srcComponents) { + case 4: + SWZ_CPY(dst, src, count, 3, 4); + break; + case 3: + SWZ_CPY(dst, src, count, 3, 3); + break; + case 2: + SWZ_CPY(dst, src, count, 3, 2); + break; + case 1: + SWZ_CPY(dst, src, count, 3, 1); + break; + default: + ; + } + break; + case 2: + switch (srcComponents) { + case 4: + SWZ_CPY(dst, src, count, 2, 4); + break; + case 3: + SWZ_CPY(dst, src, count, 2, 3); + break; + case 2: + SWZ_CPY(dst, src, count, 2, 2); + break; + case 1: + SWZ_CPY(dst, src, count, 2, 1); + break; + default: + ; + } + break; + case 1: + switch (srcComponents) { + case 4: + SWZ_CPY(dst, src, count, 1, 4); + break; + case 3: + SWZ_CPY(dst, src, count, 1, 3); + break; + case 2: + SWZ_CPY(dst, src, count, 1, 2); + break; + case 1: + SWZ_CPY(dst, src, count, 1, 1); + break; + default: + ; + } + break; + default: + ; + } +#undef SWZ_CPY +} + + + +static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE }; +static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE }; + + +/** + * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a + * mapping array depending on endianness. + */ +static const GLubyte * +type_mapping( GLenum srcType ) +{ + switch (srcType) { + case GL_BYTE: + case GL_UNSIGNED_BYTE: + return map_identity; + case GL_UNSIGNED_INT_8_8_8_8: + return _mesa_little_endian() ? map_3210 : map_identity; + case GL_UNSIGNED_INT_8_8_8_8_REV: + return _mesa_little_endian() ? map_identity : map_3210; + default: + return NULL; + } +} + + +/** + * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a + * mapping array depending on pixelstore byte swapping state. + */ +static const GLubyte * +byteswap_mapping( GLboolean swapBytes, + GLenum srcType ) +{ + if (!swapBytes) + return map_identity; + + switch (srcType) { + case GL_BYTE: + case GL_UNSIGNED_BYTE: + return map_identity; + case GL_UNSIGNED_INT_8_8_8_8: + case GL_UNSIGNED_INT_8_8_8_8_REV: + return map_3210; + default: + return NULL; + } +} + + + +/** + * Transfer a GLubyte texture image with component swizzling. + */ +static void +_mesa_swizzle_ubyte_image(struct gl_context *ctx, + GLuint dimensions, + GLenum srcFormat, + GLenum srcType, + + GLenum baseInternalFormat, + + const GLubyte *rgba2dst, + GLuint dstComponents, + + GLvoid *dstAddr, + GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, + GLint dstRowStride, + const GLuint *dstImageOffsets, + + GLint srcWidth, GLint srcHeight, GLint srcDepth, + const GLvoid *srcAddr, + const struct gl_pixelstore_attrib *srcPacking ) +{ + GLint srcComponents = _mesa_components_in_format(srcFormat); + const GLubyte *srctype2ubyte, *swap; + GLubyte map[4], src2base[6], base2rgba[6]; + GLint i; + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, + srcFormat, GL_UNSIGNED_BYTE); + const GLint srcImageStride + = _mesa_image_image_stride(srcPacking, srcWidth, srcHeight, srcFormat, + GL_UNSIGNED_BYTE); + const GLubyte *srcImage + = (const GLubyte *) _mesa_image_address(dimensions, srcPacking, srcAddr, + srcWidth, srcHeight, srcFormat, + GL_UNSIGNED_BYTE, 0, 0, 0); + + (void) ctx; + + /* Translate from src->baseInternal->GL_RGBA->dst. This will + * correctly deal with RGBA->RGB->RGBA conversions where the final + * A value must be 0xff regardless of the incoming alpha values. + */ + compute_component_mapping(srcFormat, baseInternalFormat, src2base); + compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba); + swap = byteswap_mapping(srcPacking->SwapBytes, srcType); + srctype2ubyte = type_mapping(srcType); + + + for (i = 0; i < 4; i++) + map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]]; + +/* printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */ + + if (srcComponents == dstComponents && + srcRowStride == dstRowStride && + srcRowStride == srcWidth * srcComponents && + dimensions < 3) { + /* 1 and 2D images only */ + GLubyte *dstImage = (GLubyte *) dstAddr + + dstYoffset * dstRowStride + + dstXoffset * dstComponents; + swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map, + srcWidth * srcHeight); + } + else { + GLint img, row; + for (img = 0; img < srcDepth; img++) { + const GLubyte *srcRow = srcImage; + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * dstComponents + + dstYoffset * dstRowStride + + dstXoffset * dstComponents; + for (row = 0; row < srcHeight; row++) { + swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth); + dstRow += dstRowStride; + srcRow += srcRowStride; + } + srcImage += srcImageStride; + } + } +} + + +/** + * Teximage storage routine for when a simple memcpy will do. + * No pixel transfer operations or special texel encodings allowed. + * 1D, 2D and 3D images supported. + */ +static void +memcpy_texture(struct gl_context *ctx, + GLuint dimensions, + 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) +{ + const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, + srcFormat, srcType); + const GLint srcImageStride = _mesa_image_image_stride(srcPacking, + srcWidth, srcHeight, srcFormat, srcType); + const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions, + srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLint bytesPerRow = srcWidth * texelBytes; + +#if 0 + /* XXX update/re-enable for dstImageOffsets array */ + const GLint bytesPerImage = srcHeight * bytesPerRow; + const GLint bytesPerTexture = srcDepth * bytesPerImage; + GLubyte *dstImage = (GLubyte *) dstAddr + + dstZoffset * dstImageStride + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + + if (dstRowStride == srcRowStride && + dstRowStride == bytesPerRow && + ((dstImageStride == srcImageStride && + dstImageStride == bytesPerImage) || + (srcDepth == 1))) { + /* one big memcpy */ + ctx->Driver.TextureMemCpy(dstImage, srcImage, bytesPerTexture); + } + else + { + GLint img, row; + for (img = 0; img < srcDepth; img++) { + const GLubyte *srcRow = srcImage; + GLubyte *dstRow = dstImage; + for (row = 0; row < srcHeight; row++) { + ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow); + dstRow += dstRowStride; + srcRow += srcRowStride; + } + srcImage += srcImageStride; + dstImage += dstImageStride; + } + } +#endif + + GLint img, row; + for (img = 0; img < srcDepth; img++) { + const GLubyte *srcRow = srcImage; + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow); + dstRow += dstRowStride; + srcRow += srcRowStride; + } + srcImage += srcImageStride; + } +} + + + +/** + * Store a 32-bit integer depth component texture image. + */ +static GLboolean +_mesa_texstore_z32(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffffffff; + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + (void) dims; + ASSERT(dstFormat == MESA_FORMAT_Z32); + ASSERT(texelBytes == sizeof(GLuint)); + + if (ctx->Pixel.DepthScale == 1.0f && + ctx->Pixel.DepthBias == 0.0f && + !srcPacking->SwapBytes && + baseInternalFormat == GL_DEPTH_COMPONENT && + srcFormat == GL_DEPTH_COMPONENT && + srcType == GL_UNSIGNED_INT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + const GLvoid *src = _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_INT, (GLuint *) dstRow, + depthScale, srcType, src, srcPacking); + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + + +/** + * Store a 24-bit integer depth component texture image. + */ +static GLboolean +_mesa_texstore_x8_z24(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffffff; + const GLuint texelBytes = 4; + + (void) dims; + ASSERT(dstFormat == MESA_FORMAT_X8_Z24); + + { + /* general path */ + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + const GLvoid *src = _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_INT, (GLuint *) dstRow, + depthScale, srcType, src, srcPacking); + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + + +/** + * Store a 24-bit integer depth component texture image. + */ +static GLboolean +_mesa_texstore_z24_x8(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffffff; + const GLuint texelBytes = 4; + + (void) dims; + ASSERT(dstFormat == MESA_FORMAT_Z24_X8); + + { + /* general path */ + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + const GLvoid *src = _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); + GLuint *dst = (GLuint *) dstRow; + GLint i; + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_INT, dst, + depthScale, srcType, src, srcPacking); + for (i = 0; i < srcWidth; i++) + dst[i] <<= 8; + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + + +/** + * Store a 16-bit integer depth component texture image. + */ +static GLboolean +_mesa_texstore_z16(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffff; + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + (void) dims; + ASSERT(dstFormat == MESA_FORMAT_Z16); + ASSERT(texelBytes == sizeof(GLushort)); + + if (ctx->Pixel.DepthScale == 1.0f && + ctx->Pixel.DepthBias == 0.0f && + !srcPacking->SwapBytes && + baseInternalFormat == GL_DEPTH_COMPONENT && + srcFormat == GL_DEPTH_COMPONENT && + srcType == GL_UNSIGNED_SHORT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + const GLvoid *src = _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); + GLushort *dst16 = (GLushort *) dstRow; + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_SHORT, dst16, depthScale, + srcType, src, srcPacking); + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + + +/** + * Store an rgb565 or rgb565_rev texture image. + */ +static GLboolean +_mesa_texstore_rgb565(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGB565 || + dstFormat == MESA_FORMAT_RGB565_REV); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_RGB565 && + baseInternalFormat == GL_RGB && + srcFormat == GL_RGB && + srcType == GL_UNSIGNED_SHORT_5_6_5) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGB && + srcFormat == GL_RGB && + srcType == GL_UNSIGNED_BYTE && + dims == 2) { + /* do optimized tex store */ + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + const GLubyte *src = (const GLubyte *) + _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight, + srcFormat, srcType, 0, 0, 0); + GLubyte *dst = (GLubyte *) dstAddr + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + GLint row, col; + for (row = 0; row < srcHeight; row++) { + const GLubyte *srcUB = (const GLubyte *) src; + GLushort *dstUS = (GLushort *) dst; + /* check for byteswapped format */ + if (dstFormat == MESA_FORMAT_RGB565) { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] ); + srcUB += 3; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] ); + srcUB += 3; + } + } + dst += dstRowStride; + src += srcRowStride; + } + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + /* check for byteswapped format */ + if (dstFormat == MESA_FORMAT_RGB565) { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_565( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 3; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 3; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV. + */ +static GLboolean +_mesa_texstore_rgba8888(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA8888 || + dstFormat == MESA_FORMAT_RGBA8888_REV); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_RGBA8888 && + baseInternalFormat == GL_RGBA && + ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) || + (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) || + (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) || + (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_RGBA8888_REV && + baseInternalFormat == GL_RGBA && + ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) || + (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) || + (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) || + (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + (srcType == GL_UNSIGNED_BYTE || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV) && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + if ((littleEndian && dstFormat == MESA_FORMAT_RGBA8888) || + (!littleEndian && dstFormat == MESA_FORMAT_RGBA8888_REV)) { + dstmap[3] = 0; + dstmap[2] = 1; + dstmap[1] = 2; + dstmap[0] = 3; + } + else { + dstmap[3] = 3; + dstmap[2] = 2; + dstmap[1] = 1; + dstmap[0] = 0; + } + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 4, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint *) dstRow; + if (dstFormat == MESA_FORMAT_RGBA8888) { + for (col = 0; col < srcWidth; col++) { + dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]), + CHAN_TO_UBYTE(src[ACOMP]) ); + src += 4; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]), + CHAN_TO_UBYTE(src[ACOMP]) ); + src += 4; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_argb8888(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = GL_RGBA; + + ASSERT(dstFormat == MESA_FORMAT_ARGB8888 || + dstFormat == MESA_FORMAT_ARGB8888_REV || + dstFormat == MESA_FORMAT_XRGB8888 || + dstFormat == MESA_FORMAT_XRGB8888_REV ); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + (dstFormat == MESA_FORMAT_ARGB8888 || + dstFormat == MESA_FORMAT_XRGB8888) && + baseInternalFormat == GL_RGBA && + srcFormat == GL_BGRA && + ((srcType == GL_UNSIGNED_BYTE && littleEndian) || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV)) { + /* simple memcpy path (little endian) */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + (dstFormat == MESA_FORMAT_ARGB8888_REV || + dstFormat == MESA_FORMAT_XRGB8888_REV) && + baseInternalFormat == GL_RGBA && + srcFormat == GL_BGRA && + ((srcType == GL_UNSIGNED_BYTE && !littleEndian) || + srcType == GL_UNSIGNED_INT_8_8_8_8)) { + /* simple memcpy path (big endian) */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + (dstFormat == MESA_FORMAT_ARGB8888 || + dstFormat == MESA_FORMAT_XRGB8888) && + srcFormat == GL_RGB && + (baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB) && + srcType == GL_UNSIGNED_BYTE) { + int img, row, col; + for (img = 0; img < srcDepth; img++) { + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *d4 = (GLuint *) dstRow; + for (col = 0; col < srcWidth; col++) { + d4[col] = PACK_COLOR_8888(0xff, + srcRow[col * 3 + RCOMP], + srcRow[col * 3 + GCOMP], + srcRow[col * 3 + BCOMP]); + } + dstRow += dstRowStride; + srcRow += srcRowStride; + } + } + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_ARGB8888 && + srcFormat == GL_RGBA && + baseInternalFormat == GL_RGBA && + srcType == GL_UNSIGNED_BYTE) { + /* same as above case, but src data has alpha too */ + GLint img, row, col; + /* For some reason, streaming copies to write-combined regions + * are extremely sensitive to the characteristics of how the + * source data is retrieved. By reordering the source reads to + * be in-order, the speed of this operation increases by half. + * Strangely the same isn't required for the RGB path, above. + */ + for (img = 0; img < srcDepth; img++) { + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *d4 = (GLuint *) dstRow; + for (col = 0; col < srcWidth; col++) { + d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP], + srcRow[col * 4 + RCOMP], + srcRow[col * 4 + GCOMP], + srcRow[col * 4 + BCOMP]); + } + dstRow += dstRowStride; + srcRow += srcRowStride; + } + } + } + else if (!ctx->_ImageTransferState && + (srcType == GL_UNSIGNED_BYTE || + srcType == GL_UNSIGNED_INT_8_8_8_8 || + srcType == GL_UNSIGNED_INT_8_8_8_8_REV) && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) || + (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) || + (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) || + (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) { + dstmap[3] = 3; /* alpha */ + dstmap[2] = 0; /* red */ + dstmap[1] = 1; /* green */ + dstmap[0] = 2; /* blue */ + } + else { + assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) || + (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) || + (littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) || + (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888)); + dstmap[3] = 2; + dstmap[2] = 1; + dstmap[1] = 0; + dstmap[0] = 3; + } + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 4, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint *) dstRow; + if (dstFormat == MESA_FORMAT_ARGB8888) { + for (col = 0; col < srcWidth; col++) { + dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + else if (dstFormat == MESA_FORMAT_XRGB8888) { + for (col = 0; col < srcWidth; col++) { + dstUI[col] = PACK_COLOR_8888( 0xff, + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_rgb888(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGB888); + ASSERT(texelBytes == 3); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGB && + srcFormat == GL_BGR && + srcType == GL_UNSIGNED_BYTE && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + srcFormat == GL_RGBA && + srcType == GL_UNSIGNED_BYTE) { + /* extract RGB from RGBA */ + GLint img, row, col; + for (img = 0; img < srcDepth; img++) { + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP]; + dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP]; + dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP]; + } + dstRow += dstRowStride; + srcRow += srcRowStride; + } + } + } + else if (!ctx->_ImageTransferState && + srcType == GL_UNSIGNED_BYTE && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + dstmap[0] = 2; + dstmap[1] = 1; + dstmap[2] = 0; + dstmap[3] = ONE; /* ? */ + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 3, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = (const GLchan *) tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { +#if 0 + if (littleEndian) { + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]); + dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); + dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]); + srcUB += 3; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = srcUB[BCOMP]; + dstRow[col * 3 + 1] = srcUB[GCOMP]; + dstRow[col * 3 + 2] = srcUB[RCOMP]; + srcUB += 3; + } + } +#else + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[BCOMP]); + dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); + dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[RCOMP]); + src += 3; + } +#endif + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_bgr888(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_BGR888); + ASSERT(texelBytes == 3); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGB && + srcFormat == GL_RGB && + srcType == GL_UNSIGNED_BYTE && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + srcFormat == GL_RGBA && + srcType == GL_UNSIGNED_BYTE) { + /* extract BGR from RGBA */ + int img, row, col; + for (img = 0; img < srcDepth; img++) { + const GLint srcRowStride = + _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType); + GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0); + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP]; + dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP]; + dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP]; + } + dstRow += dstRowStride; + srcRow += srcRowStride; + } + } + } + else if (!ctx->_ImageTransferState && + srcType == GL_UNSIGNED_BYTE && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + dstmap[0] = 0; + dstmap[1] = 1; + dstmap[2] = 2; + dstmap[3] = ONE; /* ? */ + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 3, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = (const GLchan *) tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]); + dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]); + dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]); + src += 3; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_argb4444(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_ARGB4444 || + dstFormat == MESA_FORMAT_ARGB4444_REV); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_ARGB4444 && + baseInternalFormat == GL_RGBA && + srcFormat == GL_BGRA && + srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + if (dstFormat == MESA_FORMAT_ARGB4444) { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + +static GLboolean +_mesa_texstore_rgba5551(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA5551); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_RGBA5551 && + baseInternalFormat == GL_RGBA && + srcFormat == GL_RGBA && + srcType == GL_UNSIGNED_SHORT_5_5_5_1) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src =tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]), + CHAN_TO_UBYTE(src[ACOMP]) ); + src += 4; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + +static GLboolean +_mesa_texstore_argb1555(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_ARGB1555 || + dstFormat == MESA_FORMAT_ARGB1555_REV); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_ARGB1555 && + baseInternalFormat == GL_RGBA && + srcFormat == GL_BGRA && + srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src =tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + if (dstFormat == MESA_FORMAT_ARGB1555) { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_1555( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dstUS[col] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src[ACOMP]), + CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 4; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_argb2101010(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_ARGB2101010); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_ARGB2101010 && + srcFormat == GL_BGRA && + srcType == GL_UNSIGNED_INT_2_10_10_10_REV && + baseInternalFormat == GL_RGBA) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + if (baseInternalFormat == GL_RGBA) { + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort a,r,g,b; + + UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]); + UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); + UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); + UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); + dstUI[col] = PACK_COLOR_2101010_US(a, r, g, b); + src += 4; + } + dstRow += dstRowStride; + } + } else if (baseInternalFormat == GL_RGB) { + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort r,g,b; + + UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]); + UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]); + UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]); + dstUI[col] = PACK_COLOR_2101010_US(0xffff, r, g, b); + src += 4; + } + dstRow += dstRowStride; + } + } else { + ASSERT(0); + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Do texstore for 2-channel, 4-bit/channel, unsigned normalized formats. + */ +static GLboolean +_mesa_texstore_unorm44(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_AL44); + ASSERT(texelBytes == 1); + + { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLubyte *dstUS = (GLubyte *) dstRow; + for (col = 0; col < srcWidth; col++) { + /* src[0] is luminance, src[1] is alpha */ + dstUS[col] = PACK_COLOR_44( CHAN_TO_UBYTE(src[1]), + CHAN_TO_UBYTE(src[0]) ); + src += 2; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats. + */ +static GLboolean +_mesa_texstore_unorm88(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_AL88 || + dstFormat == MESA_FORMAT_AL88_REV || + dstFormat == MESA_FORMAT_RG88 || + dstFormat == MESA_FORMAT_RG88_REV); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + ((dstFormat == MESA_FORMAT_AL88 && + baseInternalFormat == GL_LUMINANCE_ALPHA && + srcFormat == GL_LUMINANCE_ALPHA) || + (dstFormat == MESA_FORMAT_RG88 && + baseInternalFormat == srcFormat)) && + srcType == GL_UNSIGNED_BYTE && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + littleEndian && + srcType == GL_UNSIGNED_BYTE && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + if (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) { + if ((littleEndian && dstFormat == MESA_FORMAT_AL88) || + (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) { + dstmap[0] = 0; + dstmap[1] = 3; + } + else { + dstmap[0] = 3; + dstmap[1] = 0; + } + } + else { + if ((littleEndian && dstFormat == MESA_FORMAT_RG88) || + (!littleEndian && dstFormat == MESA_FORMAT_RG88_REV)) { + dstmap[0] = 0; + dstmap[1] = 1; + } + else { + dstmap[0] = 1; + dstmap[1] = 0; + } + } + dstmap[2] = ZERO; /* ? */ + dstmap[3] = ONE; /* ? */ + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 2, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + if (dstFormat == MESA_FORMAT_AL88 || + dstFormat == MESA_FORMAT_RG88) { + for (col = 0; col < srcWidth; col++) { + /* src[0] is luminance, src[1] is alpha */ + dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]), + CHAN_TO_UBYTE(src[0]) ); + src += 2; + } + } + else { + for (col = 0; col < srcWidth; col++) { + /* src[0] is luminance, src[1] is alpha */ + dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]), + CHAN_TO_UBYTE(src[0]) ); + src += 2; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats. + */ +static GLboolean +_mesa_texstore_unorm1616(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_AL1616 || + dstFormat == MESA_FORMAT_AL1616_REV || + dstFormat == MESA_FORMAT_RG1616 || + dstFormat == MESA_FORMAT_RG1616_REV); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + ((dstFormat == MESA_FORMAT_AL1616 && + baseInternalFormat == GL_LUMINANCE_ALPHA && + srcFormat == GL_LUMINANCE_ALPHA) || + (dstFormat == MESA_FORMAT_RG1616 && + baseInternalFormat == srcFormat)) && + srcType == GL_UNSIGNED_SHORT && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint *) dstRow; + if (dstFormat == MESA_FORMAT_AL1616 || + dstFormat == MESA_FORMAT_RG1616) { + for (col = 0; col < srcWidth; col++) { + GLushort l, a; + + UNCLAMPED_FLOAT_TO_USHORT(l, src[0]); + UNCLAMPED_FLOAT_TO_USHORT(a, src[1]); + dstUI[col] = PACK_COLOR_1616(a, l); + src += 2; + } + } + else { + for (col = 0; col < srcWidth; col++) { + GLushort l, a; + + UNCLAMPED_FLOAT_TO_USHORT(l, src[0]); + UNCLAMPED_FLOAT_TO_USHORT(a, src[1]); + dstUI[col] = PACK_COLOR_1616_REV(a, l); + src += 2; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* Texstore for R16, A16, L16, I16. */ +static GLboolean +_mesa_texstore_unorm16(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_R16 || + dstFormat == MESA_FORMAT_A16 || + dstFormat == MESA_FORMAT_L16 || + dstFormat == MESA_FORMAT_I16); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_SHORT && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort r; + + UNCLAMPED_FLOAT_TO_USHORT(r, src[0]); + dstUS[col] = r; + src += 1; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_rgba_16(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_16); + ASSERT(texelBytes == 8); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGBA && + srcFormat == GL_RGBA && + srcType == GL_UNSIGNED_SHORT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstUS = (GLushort *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort r, g, b, a; + + UNCLAMPED_FLOAT_TO_USHORT(r, src[0]); + UNCLAMPED_FLOAT_TO_USHORT(g, src[1]); + UNCLAMPED_FLOAT_TO_USHORT(b, src[2]); + UNCLAMPED_FLOAT_TO_USHORT(a, src[3]); + dstUS[col*4+0] = r; + dstUS[col*4+1] = g; + dstUS[col*4+2] = b; + dstUS[col*4+3] = a; + src += 4; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGB_16 || + dstFormat == MESA_FORMAT_SIGNED_RGBA_16); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGBA && + dstFormat == MESA_FORMAT_SIGNED_RGBA_16 && + srcFormat == GL_RGBA && + srcType == GL_SHORT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2; + GLint img, row, col; + + if (!tempImage) + return GL_FALSE; + + /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2, + * 3 or 4 components/pixel here. + */ + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLshort *dstRowS = (GLshort *) dstRow; + if (dstFormat == MESA_FORMAT_SIGNED_RGBA_16) { + for (col = 0; col < srcWidth; col++) { + GLuint c; + for (c = 0; c < comps; c++) { + GLshort p; + UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]); + dstRowS[col * comps + c] = p; + } + } + dstRow += dstRowStride; + src += 4 * srcWidth; + } else { + for (col = 0; col < srcWidth; col++) { + GLuint c; + for (c = 0; c < comps; c++) { + GLshort p; + UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 3 + c]); + dstRowS[col * comps + c] = p; + } + } + dstRow += dstRowStride; + src += 3 * srcWidth; + } + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +static GLboolean +_mesa_texstore_rgb332(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGB332); + ASSERT(texelBytes == 1); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == GL_RGB && + srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]), + CHAN_TO_UBYTE(src[GCOMP]), + CHAN_TO_UBYTE(src[BCOMP]) ); + src += 3; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8. + */ +static GLboolean +_mesa_texstore_unorm8(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_A8 || + dstFormat == MESA_FORMAT_L8 || + dstFormat == MESA_FORMAT_I8 || + dstFormat == MESA_FORMAT_R8); + ASSERT(texelBytes == 1); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + srcType == GL_UNSIGNED_BYTE && + can_swizzle(baseInternalFormat) && + can_swizzle(srcFormat)) { + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + if (dstFormat == MESA_FORMAT_A8) { + dstmap[0] = 3; + } + else { + dstmap[0] = 0; + } + dstmap[1] = ZERO; /* ? */ + dstmap[2] = ZERO; /* ? */ + dstmap[3] = ONE; /* ? */ + + _mesa_swizzle_ubyte_image(ctx, dims, + srcFormat, + srcType, + baseInternalFormat, + dstmap, 1, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path */ + const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking); + const GLchan *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col] = CHAN_TO_UBYTE(src[col]); + } + dstRow += dstRowStride; + src += srcWidth; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + + +static GLboolean +_mesa_texstore_ci8(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + + (void) dims; (void) baseInternalFormat; + ASSERT(dstFormat == MESA_FORMAT_CI8); + ASSERT(texelBytes == 1); + ASSERT(baseInternalFormat == GL_COLOR_INDEX); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + srcFormat == GL_COLOR_INDEX && + srcType == GL_UNSIGNED_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + const GLvoid *src = _mesa_image_address(dims, srcPacking, + srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); + _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow, + srcType, src, srcPacking, + ctx->_ImageTransferState); + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + + +/** + * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV. + */ +static GLboolean +_mesa_texstore_ycbcr(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + + (void) ctx; (void) dims; (void) baseInternalFormat; + + ASSERT((dstFormat == MESA_FORMAT_YCBCR) || + (dstFormat == MESA_FORMAT_YCBCR_REV)); + ASSERT(texelBytes == 2); + ASSERT(ctx->Extensions.MESA_ycbcr_texture); + ASSERT(srcFormat == GL_YCBCR_MESA); + ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) || + (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA)); + ASSERT(baseInternalFormat == GL_YCBCR_MESA); + + /* always just memcpy since no pixel transfer ops apply */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + + /* Check if we need byte swapping */ + /* XXX the logic here _might_ be wrong */ + if (srcPacking->SwapBytes ^ + (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^ + (dstFormat == MESA_FORMAT_YCBCR_REV) ^ + !littleEndian) { + GLint img, row; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + _mesa_swap2((GLushort *) dstRow, srcWidth); + dstRow += dstRowStride; + } + } + } + return GL_TRUE; +} + +static GLboolean +_mesa_texstore_dudv8(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_DUDV8); + ASSERT(texelBytes == 2); + ASSERT(ctx->Extensions.ATI_envmap_bumpmap); + ASSERT((srcFormat == GL_DU8DV8_ATI) || + (srcFormat == GL_DUDV_ATI)); + ASSERT(baseInternalFormat == GL_DUDV_ATI); + + if (!srcPacking->SwapBytes && srcType == GL_BYTE && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (srcType == GL_BYTE) { + GLubyte dstmap[4]; + + /* dstmap - how to swizzle from RGBA to dst format: + */ + if (littleEndian) { + dstmap[0] = 0; + dstmap[1] = 3; + } + else { + dstmap[0] = 3; + dstmap[1] = 0; + } + dstmap[2] = ZERO; /* ? */ + dstmap[3] = ONE; /* ? */ + + _mesa_swizzle_ubyte_image(ctx, dims, + GL_LUMINANCE_ALPHA, /* hack */ + GL_UNSIGNED_BYTE, /* hack */ + GL_LUMINANCE_ALPHA, /* hack */ + dstmap, 2, + dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcAddr, + srcPacking); + } + else { + /* general path - note this is defined for 2d textures only */ + const GLint components = _mesa_components_in_format(baseInternalFormat); + const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth, + srcFormat, srcType); + GLbyte *tempImage, *dst, *src; + GLint row; + + tempImage = (GLbyte *) malloc(srcWidth * srcHeight * srcDepth + * components * sizeof(GLbyte)); + if (!tempImage) + return GL_FALSE; + + src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + 0, 0, 0); + + dst = tempImage; + for (row = 0; row < srcHeight; row++) { + _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat, + dst, srcFormat, srcType, src, + srcPacking, 0); + dst += srcWidth * components; + src += srcStride; + } + + src = tempImage; + dst = (GLbyte *) dstAddr + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + memcpy(dst, src, srcWidth * texelBytes); + dst += dstRowStride; + src += srcWidth * texelBytes; + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Store a texture in a signed normalized 8-bit format. + */ +static GLboolean +_mesa_texstore_snorm8(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_A8 || + dstFormat == MESA_FORMAT_SIGNED_L8 || + dstFormat == MESA_FORMAT_SIGNED_I8 || + dstFormat == MESA_FORMAT_SIGNED_R8); + ASSERT(texelBytes == 1); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLbyte *dstRow = (GLbyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + for (col = 0; col < srcWidth; col++) { + dstRow[col] = FLOAT_TO_BYTE_TEX(src[col]); + } + dstRow += dstRowStride; + src += srcWidth; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Store a texture in a signed normalized two-channel 16-bit format. + */ +static GLboolean +_mesa_texstore_snorm88(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL88 || + dstFormat == MESA_FORMAT_SIGNED_RG88_REV); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_BYTE && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLbyte *dstRow = (GLbyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLbyte *dst = dstRow; + for (col = 0; col < srcWidth; col++) { + dst[0] = FLOAT_TO_BYTE_TEX(src[0]); + dst[1] = FLOAT_TO_BYTE_TEX(src[1]); + src += 2; + dst += 2; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + +/* Texstore for signed R16, A16, L16, I16. */ +static GLboolean +_mesa_texstore_snorm16(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_R16 || + dstFormat == MESA_FORMAT_SIGNED_A16 || + dstFormat == MESA_FORMAT_SIGNED_L16 || + dstFormat == MESA_FORMAT_SIGNED_I16); + ASSERT(texelBytes == 2); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_SHORT && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLshort *dstUS = (GLshort *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort r; + + UNCLAMPED_FLOAT_TO_SHORT(r, src[0]); + dstUS[col] = r; + src += 1; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + +/** + * Do texstore for 2-channel, 16-bit/channel, signed normalized formats. + */ +static GLboolean +_mesa_texstore_snorm1616(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL1616 || + dstFormat == MESA_FORMAT_SIGNED_GR1616); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_SHORT && + littleEndian) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLshort *dst = (GLshort *) dstRow; + for (col = 0; col < srcWidth; col++) { + GLushort l, a; + + UNCLAMPED_FLOAT_TO_SHORT(l, src[0]); + UNCLAMPED_FLOAT_TO_SHORT(a, src[1]); + dst[0] = l; + dst[1] = a; + src += 2; + dst += 2; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + +/** + * Store a texture in MESA_FORMAT_SIGNED_RGBX8888. + */ +static GLboolean +_mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBX8888); + ASSERT(texelBytes == 4); + + { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *srcRow = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLbyte *dstRow = (GLbyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLbyte *dst = dstRow; + for (col = 0; col < srcWidth; col++) { + dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); + dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); + dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); + dst[0] = 127; + srcRow += 3; + dst += 4; + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + + +/** + * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or + * MESA_FORMAT_SIGNED_RGBA8888_REV + */ +static GLboolean +_mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS) +{ + const GLboolean littleEndian = _mesa_little_endian(); + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 || + dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV); + ASSERT(texelBytes == 4); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_SIGNED_RGBA8888 && + baseInternalFormat == GL_RGBA && + ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) || + (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV && + baseInternalFormat == GL_RGBA && + ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) || + (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *srcRow = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLbyte *dstRow = (GLbyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLbyte *dst = dstRow; + if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) { + for (col = 0; col < srcWidth; col++) { + dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); + dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); + dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); + dst[0] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]); + srcRow += 4; + dst += 4; + } + } + else { + for (col = 0; col < srcWidth; col++) { + dst[0] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]); + dst[1] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]); + dst[2] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]); + dst[3] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]); + srcRow += 4; + dst += 4; + } + } + dstRow += dstRowStride; + } + } + free((void *) tempImage); + } + return GL_TRUE; +} + + +/** + * Store a combined depth/stencil texture image. + */ +static GLboolean +_mesa_texstore_z24_s8(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffffff; + const GLint srcRowStride + = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) + / sizeof(GLuint); + GLint img, row; + + ASSERT(dstFormat == MESA_FORMAT_Z24_S8); + ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT); + ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT); + + if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f && + ctx->Pixel.DepthBias == 0.0f && + !srcPacking->SwapBytes) { + /* simple path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else if (srcFormat == GL_DEPTH_COMPONENT) { + /* In case we only upload depth we need to preserve the stencil */ + for (img = 0; img < srcDepth; img++) { + GLuint *dstRow = (GLuint *) dstAddr + + dstImageOffsets[dstZoffset + img] + + dstYoffset * dstRowStride / sizeof(GLuint) + + dstXoffset; + const GLuint *src + = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + GLuint depth[MAX_WIDTH]; + GLubyte stencil[MAX_WIDTH]; + GLint i; + GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE; + + if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ + keepstencil = GL_TRUE; + } + else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ + keepdepth = GL_TRUE; + } + + if (keepdepth == GL_FALSE) + /* the 24 depth bits will be in the low position: */ + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_INT, /* dst type */ + keepstencil ? depth : dstRow, /* dst addr */ + depthScale, + srcType, src, srcPacking); + + if (keepstencil == GL_FALSE) + /* get the 8-bit stencil values */ + _mesa_unpack_stencil_span(ctx, srcWidth, + GL_UNSIGNED_BYTE, /* dst type */ + stencil, /* dst addr */ + srcType, src, srcPacking, + ctx->_ImageTransferState); + + for (i = 0; i < srcWidth; i++) { + if (keepstencil) + dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF); + else + dstRow[i] = (dstRow[i] & 0xFFFFFF00) | (stencil[i] & 0xFF); + } + + src += srcRowStride; + dstRow += dstRowStride / sizeof(GLuint); + } + } + } + return GL_TRUE; +} + + +/** + * Store a combined depth/stencil texture image. + */ +static GLboolean +_mesa_texstore_s8_z24(TEXSTORE_PARAMS) +{ + const GLuint depthScale = 0xffffff; + const GLint srcRowStride + = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) + / sizeof(GLuint); + GLint img, row; + + ASSERT(dstFormat == MESA_FORMAT_S8_Z24); + ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || + srcFormat == GL_DEPTH_COMPONENT || + srcFormat == GL_STENCIL_INDEX); + ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || + srcType == GL_UNSIGNED_INT_24_8_EXT); + + for (img = 0; img < srcDepth; img++) { + GLuint *dstRow = (GLuint *) dstAddr + + dstImageOffsets[dstZoffset + img] + + dstYoffset * dstRowStride / sizeof(GLuint) + + dstXoffset; + const GLuint *src + = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + GLuint depth[MAX_WIDTH]; + GLubyte stencil[MAX_WIDTH]; + GLint i; + GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE; + + if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ + keepstencil = GL_TRUE; + } + else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ + keepdepth = GL_TRUE; + } + + if (keepdepth == GL_FALSE) + /* the 24 depth bits will be in the low position: */ + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_INT, /* dst type */ + keepstencil ? depth : dstRow, /* dst addr */ + depthScale, + srcType, src, srcPacking); + + if (keepstencil == GL_FALSE) + /* get the 8-bit stencil values */ + _mesa_unpack_stencil_span(ctx, srcWidth, + GL_UNSIGNED_BYTE, /* dst type */ + stencil, /* dst addr */ + srcType, src, srcPacking, + ctx->_ImageTransferState); + + /* merge stencil values into depth values */ + for (i = 0; i < srcWidth; i++) { + if (keepstencil) + dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000); + else + dstRow[i] = (dstRow[i] & 0xFFFFFF) | (stencil[i] << 24); + + } + src += srcRowStride; + dstRow += dstRowStride / sizeof(GLuint); + } + } + return GL_TRUE; +} + + +/** + * Store simple 8-bit/value stencil texture data. + */ +static GLboolean +_mesa_texstore_s8(TEXSTORE_PARAMS) +{ + ASSERT(dstFormat == MESA_FORMAT_S8); + ASSERT(srcFormat == GL_STENCIL_INDEX); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + const GLint srcRowStride + = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) + / sizeof(GLuint); + GLint img, row; + + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] + + dstYoffset * dstRowStride / sizeof(GLuint) + + dstXoffset; + const GLuint *src + = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + GLubyte stencil[MAX_WIDTH]; + GLint i; + + /* get the 8-bit stencil values */ + _mesa_unpack_stencil_span(ctx, srcWidth, + GL_UNSIGNED_BYTE, /* dst type */ + stencil, /* dst addr */ + srcType, src, srcPacking, + ctx->_ImageTransferState); + /* merge stencil values into depth values */ + for (i = 0; i < srcWidth; i++) + dstRow[i] = stencil[i]; + + src += srcRowStride; + dstRow += dstRowStride / sizeof(GLubyte); + } + } + + } + + return GL_TRUE; +} + + +/** + * Store an image in any of the formats: + * _mesa_texformat_rgba_float32 + * _mesa_texformat_rgb_float32 + * _mesa_texformat_alpha_float32 + * _mesa_texformat_luminance_float32 + * _mesa_texformat_luminance_alpha_float32 + * _mesa_texformat_intensity_float32 + */ +static GLboolean +_mesa_texstore_rgba_float32(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 || + dstFormat == MESA_FORMAT_RGB_FLOAT32 || + dstFormat == MESA_FORMAT_ALPHA_FLOAT32 || + dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 || + dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 || + dstFormat == MESA_FORMAT_INTENSITY_FLOAT32 || + dstFormat == MESA_FORMAT_R_FLOAT32 || + dstFormat == MESA_FORMAT_RG_FLOAT32); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY || + baseInternalFormat == GL_RED || + baseInternalFormat == GL_RG); + ASSERT(texelBytes == components * sizeof(GLfloat)); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + baseInternalFormat == baseFormat && + srcType == GL_FLOAT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *srcRow = tempImage; + GLint bytesPerRow; + GLint img, row; + if (!tempImage) + return GL_FALSE; + bytesPerRow = srcWidth * components * sizeof(GLfloat); + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + memcpy(dstRow, srcRow, bytesPerRow); + dstRow += dstRowStride; + srcRow += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + + +/** + * As above, but store 16-bit floats. + */ +static GLboolean +_mesa_texstore_rgba_float16(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 || + dstFormat == MESA_FORMAT_RGB_FLOAT16 || + dstFormat == MESA_FORMAT_ALPHA_FLOAT16 || + dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 || + dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 || + dstFormat == MESA_FORMAT_INTENSITY_FLOAT16 || + dstFormat == MESA_FORMAT_R_FLOAT16 || + dstFormat == MESA_FORMAT_RG_FLOAT16); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY || + baseInternalFormat == GL_RED || + baseInternalFormat == GL_RG); + ASSERT(texelBytes == components * sizeof(GLhalfARB)); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + baseInternalFormat == baseFormat && + srcType == GL_HALF_FLOAT_ARB) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLhalfARB *dstTexel = (GLhalfARB *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = _mesa_float_to_half(src[i]); + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, signed int8 */ +static GLboolean +_mesa_texstore_rgba_int8(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_INT8); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLbyte)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, 0x0); + const GLfloat *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLbyte *dstTexel = (GLbyte *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = (GLbyte) src[i]; + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, signed int16 */ +static GLboolean +_mesa_texstore_rgba_int16(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_INT16); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLshort)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_SHORT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, 0x0); + const GLfloat *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLshort *dstTexel = (GLshort *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = (GLint) src[i]; + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, signed int32 */ +static GLboolean +_mesa_texstore_rgba_int32(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_INT32); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLint)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_INT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, 0x0); + const GLfloat *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLint *dstTexel = (GLint *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = (GLint) src[i]; + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, unsigned int8 */ +static GLboolean +_mesa_texstore_rgba_uint8(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT8); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLubyte)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLuint *tempImage = + make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, srcPacking); + const GLuint *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLubyte *dstTexel = (GLubyte *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = (GLubyte) CLAMP(src[i], 0, 0xff); + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, unsigned int16 */ +static GLboolean +_mesa_texstore_rgba_uint16(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT16); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLushort)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_SHORT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLuint *tempImage = + make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, srcPacking); + const GLuint *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLushort *dstTexel = (GLushort *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = (GLushort) CLAMP(src[i], 0, 0xffff); + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + +/* non-normalized, unsigned int32 */ +static GLboolean +_mesa_texstore_rgba_uint32(TEXSTORE_PARAMS) +{ + const GLuint texelBytes = _mesa_get_format_bytes(dstFormat); + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + const GLint components = _mesa_components_in_format(baseFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT32); + ASSERT(baseInternalFormat == GL_RGBA || + baseInternalFormat == GL_RGB || + baseInternalFormat == GL_ALPHA || + baseInternalFormat == GL_LUMINANCE || + baseInternalFormat == GL_LUMINANCE_ALPHA || + baseInternalFormat == GL_INTENSITY); + ASSERT(texelBytes == components * sizeof(GLuint)); + + /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply + * to integer formats. + */ + if (!srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_INT) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLuint *tempImage = + make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, srcPacking); + const GLuint *src = tempImage; + GLint img, row; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * texelBytes + + dstYoffset * dstRowStride + + dstXoffset * texelBytes; + for (row = 0; row < srcHeight; row++) { + GLuint *dstTexel = (GLuint *) dstRow; + GLint i; + for (i = 0; i < srcWidth * components; i++) { + dstTexel[i] = src[i]; + } + dstRow += dstRowStride; + src += srcWidth * components; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + + + +#if FEATURE_EXT_texture_sRGB +static GLboolean +_mesa_texstore_srgb8(TEXSTORE_PARAMS) +{ + gl_format newDstFormat; + GLboolean k; + + ASSERT(dstFormat == MESA_FORMAT_SRGB8); + + /* reuse normal rgb texstore code */ + newDstFormat = MESA_FORMAT_RGB888; + + k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat, + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); + return k; +} + + +static GLboolean +_mesa_texstore_srgba8(TEXSTORE_PARAMS) +{ + gl_format newDstFormat; + GLboolean k; + + ASSERT(dstFormat == MESA_FORMAT_SRGBA8); + + /* reuse normal rgba texstore code */ + newDstFormat = MESA_FORMAT_RGBA8888; + k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat, + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); + return k; +} + + +static GLboolean +_mesa_texstore_sargb8(TEXSTORE_PARAMS) +{ + gl_format newDstFormat; + GLboolean k; + + ASSERT(dstFormat == MESA_FORMAT_SARGB8); + + /* reuse normal rgba texstore code */ + newDstFormat = MESA_FORMAT_ARGB8888; + + k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat, + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); + return k; +} + + +static GLboolean +_mesa_texstore_sl8(TEXSTORE_PARAMS) +{ + gl_format newDstFormat; + GLboolean k; + + ASSERT(dstFormat == MESA_FORMAT_SL8); + + newDstFormat = MESA_FORMAT_L8; + + /* _mesa_textore_a8 handles luminance8 too */ + k = _mesa_texstore_unorm8(ctx, dims, baseInternalFormat, + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); + return k; +} + + +static GLboolean +_mesa_texstore_sla8(TEXSTORE_PARAMS) +{ + gl_format newDstFormat; + GLboolean k; + + ASSERT(dstFormat == MESA_FORMAT_SLA8); + + /* reuse normal luminance/alpha texstore code */ + newDstFormat = MESA_FORMAT_AL88; + + k = _mesa_texstore_unorm88(ctx, dims, baseInternalFormat, + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); + return k; +} + +#else + +/* these are used only in texstore_funcs[] below */ +#define _mesa_texstore_srgb8 NULL +#define _mesa_texstore_srgba8 NULL +#define _mesa_texstore_sargb8 NULL +#define _mesa_texstore_sl8 NULL +#define _mesa_texstore_sla8 NULL + +#endif /* FEATURE_EXT_texture_sRGB */ + +static GLboolean +_mesa_texstore_rgb9_e5(TEXSTORE_PARAMS) +{ + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_RGB9_E5_FLOAT); + ASSERT(baseInternalFormat == GL_RGB); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + srcFormat == GL_RGB && + srcType == GL_UNSIGNED_INT_5_9_9_9_REV) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *srcRow = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * 4 + + dstYoffset * dstRowStride + + dstXoffset * 4; + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint*)dstRow; + for (col = 0; col < srcWidth; col++) { + dstUI[col] = float3_to_rgb9e5(&srcRow[col * 3]); + } + dstRow += dstRowStride; + srcRow += srcWidth * 3; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + +static GLboolean +_mesa_texstore_r11_g11_b10f(TEXSTORE_PARAMS) +{ + const GLenum baseFormat = _mesa_get_format_base_format(dstFormat); + + ASSERT(dstFormat == MESA_FORMAT_R11_G11_B10_FLOAT); + ASSERT(baseInternalFormat == GL_RGB); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + srcFormat == GL_RGB && + srcType == GL_UNSIGNED_INT_10F_11F_11F_REV) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + /* general path */ + const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims, + baseInternalFormat, + baseFormat, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, + srcPacking, + ctx->_ImageTransferState); + const GLfloat *srcRow = tempImage; + GLint img, row, col; + if (!tempImage) + return GL_FALSE; + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] * 4 + + dstYoffset * dstRowStride + + dstXoffset * 4; + for (row = 0; row < srcHeight; row++) { + GLuint *dstUI = (GLuint*)dstRow; + for (col = 0; col < srcWidth; col++) { + dstUI[col] = float3_to_r11g11b10f(&srcRow[col * 3]); + } + dstRow += dstRowStride; + srcRow += srcWidth * 3; + } + } + + free((void *) tempImage); + } + return GL_TRUE; +} + + + +/** + * Table mapping MESA_FORMAT_* to _mesa_texstore_*() + * XXX this is somewhat temporary. + */ +static const struct { + gl_format Name; + StoreTexImageFunc Store; +} +texstore_funcs[MESA_FORMAT_COUNT] = +{ + { MESA_FORMAT_NONE, NULL }, + { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 }, + { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 }, + { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 }, + { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 }, + { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 }, + { MESA_FORMAT_XRGB8888_REV, _mesa_texstore_argb8888 }, + { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 }, + { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 }, + { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 }, + { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 }, + { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 }, + { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 }, + { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 }, + { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 }, + { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 }, + { MESA_FORMAT_AL44, _mesa_texstore_unorm44 }, + { MESA_FORMAT_AL88, _mesa_texstore_unorm88 }, + { MESA_FORMAT_AL88_REV, _mesa_texstore_unorm88 }, + { MESA_FORMAT_AL1616, _mesa_texstore_unorm1616 }, + { MESA_FORMAT_AL1616_REV, _mesa_texstore_unorm1616 }, + { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 }, + { MESA_FORMAT_A8, _mesa_texstore_unorm8 }, + { MESA_FORMAT_A16, _mesa_texstore_unorm16 }, + { MESA_FORMAT_L8, _mesa_texstore_unorm8 }, + { MESA_FORMAT_L16, _mesa_texstore_unorm16 }, + { MESA_FORMAT_I8, _mesa_texstore_unorm8 }, + { MESA_FORMAT_I16, _mesa_texstore_unorm16 }, + { MESA_FORMAT_CI8, _mesa_texstore_ci8 }, + { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr }, + { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr }, + { MESA_FORMAT_R8, _mesa_texstore_unorm8 }, + { MESA_FORMAT_RG88, _mesa_texstore_unorm88 }, + { MESA_FORMAT_RG88_REV, _mesa_texstore_unorm88 }, + { MESA_FORMAT_R16, _mesa_texstore_unorm16 }, + { MESA_FORMAT_RG1616, _mesa_texstore_unorm1616 }, + { MESA_FORMAT_RG1616_REV, _mesa_texstore_unorm1616 }, + { MESA_FORMAT_ARGB2101010, _mesa_texstore_argb2101010 }, + { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 }, + { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 }, + { MESA_FORMAT_Z16, _mesa_texstore_z16 }, + { MESA_FORMAT_X8_Z24, _mesa_texstore_x8_z24 }, + { MESA_FORMAT_Z24_X8, _mesa_texstore_z24_x8 }, + { MESA_FORMAT_Z32, _mesa_texstore_z32 }, + { MESA_FORMAT_S8, _mesa_texstore_s8 }, + { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 }, + { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 }, + { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 }, + { MESA_FORMAT_SL8, _mesa_texstore_sl8 }, + { MESA_FORMAT_SLA8, _mesa_texstore_sla8 }, + { MESA_FORMAT_SRGB_DXT1, _mesa_texstore_rgb_dxt1 }, + { MESA_FORMAT_SRGBA_DXT1, _mesa_texstore_rgba_dxt1 }, + { MESA_FORMAT_SRGBA_DXT3, _mesa_texstore_rgba_dxt3 }, + { MESA_FORMAT_SRGBA_DXT5, _mesa_texstore_rgba_dxt5 }, + { MESA_FORMAT_RGB_FXT1, _mesa_texstore_rgb_fxt1 }, + { MESA_FORMAT_RGBA_FXT1, _mesa_texstore_rgba_fxt1 }, + { MESA_FORMAT_RGB_DXT1, _mesa_texstore_rgb_dxt1 }, + { MESA_FORMAT_RGBA_DXT1, _mesa_texstore_rgba_dxt1 }, + { MESA_FORMAT_RGBA_DXT3, _mesa_texstore_rgba_dxt3 }, + { MESA_FORMAT_RGBA_DXT5, _mesa_texstore_rgba_dxt5 }, + { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_R_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_R_FLOAT16, _mesa_texstore_rgba_float16 }, + { MESA_FORMAT_RG_FLOAT32, _mesa_texstore_rgba_float32 }, + { MESA_FORMAT_RG_FLOAT16, _mesa_texstore_rgba_float16 }, + + { MESA_FORMAT_RGBA_INT8, _mesa_texstore_rgba_int8 }, + { MESA_FORMAT_RGBA_INT16, _mesa_texstore_rgba_int16 }, + { MESA_FORMAT_RGBA_INT32, _mesa_texstore_rgba_int32 }, + { MESA_FORMAT_RGBA_UINT8, _mesa_texstore_rgba_uint8 }, + { MESA_FORMAT_RGBA_UINT16, _mesa_texstore_rgba_uint16 }, + { MESA_FORMAT_RGBA_UINT32, _mesa_texstore_rgba_uint32 }, + + { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 }, + + { MESA_FORMAT_SIGNED_R8, _mesa_texstore_snorm8 }, + { MESA_FORMAT_SIGNED_RG88_REV, _mesa_texstore_snorm88 }, + { MESA_FORMAT_SIGNED_RGBX8888, _mesa_texstore_signed_rgbx8888 }, + + { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 }, + { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 }, + + { MESA_FORMAT_SIGNED_R16, _mesa_texstore_snorm16 }, + { MESA_FORMAT_SIGNED_GR1616, _mesa_texstore_snorm1616 }, + { MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 }, + { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 }, + { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }, + + { MESA_FORMAT_RED_RGTC1, _mesa_texstore_red_rgtc1 }, + { MESA_FORMAT_SIGNED_RED_RGTC1, _mesa_texstore_signed_red_rgtc1 }, + { MESA_FORMAT_RG_RGTC2, _mesa_texstore_rg_rgtc2 }, + { MESA_FORMAT_SIGNED_RG_RGTC2, _mesa_texstore_signed_rg_rgtc2 }, + + /* Re-use the R/RG texstore functions. + * The code is generic enough to handle LATC too. */ + { MESA_FORMAT_L_LATC1, _mesa_texstore_red_rgtc1 }, + { MESA_FORMAT_SIGNED_L_LATC1, _mesa_texstore_signed_red_rgtc1 }, + { MESA_FORMAT_LA_LATC2, _mesa_texstore_rg_rgtc2 }, + { MESA_FORMAT_SIGNED_LA_LATC2, _mesa_texstore_signed_rg_rgtc2 }, + + { MESA_FORMAT_SIGNED_A8, _mesa_texstore_snorm8 }, + { MESA_FORMAT_SIGNED_L8, _mesa_texstore_snorm8 }, + { MESA_FORMAT_SIGNED_AL88, _mesa_texstore_snorm88 }, + { MESA_FORMAT_SIGNED_I8, _mesa_texstore_snorm8 }, + + { MESA_FORMAT_SIGNED_A16, _mesa_texstore_snorm16 }, + { MESA_FORMAT_SIGNED_L16, _mesa_texstore_snorm16 }, + { MESA_FORMAT_SIGNED_AL1616, _mesa_texstore_snorm1616 }, + { MESA_FORMAT_SIGNED_I16, _mesa_texstore_snorm16 }, + + { MESA_FORMAT_RGB9_E5_FLOAT, _mesa_texstore_rgb9_e5 }, + { MESA_FORMAT_R11_G11_B10_FLOAT, _mesa_texstore_r11_g11_b10f }, +}; + + +static GLboolean +_mesa_texstore_null(TEXSTORE_PARAMS) +{ + (void) ctx; (void) dims; + (void) baseInternalFormat; + (void) dstFormat; + (void) dstAddr; + (void) dstXoffset; (void) dstYoffset; (void) dstZoffset; + (void) dstRowStride; (void) dstImageOffsets; + (void) srcWidth; (void) srcHeight; (void) srcDepth; + (void) srcFormat; (void) srcType; + (void) srcAddr; + (void) srcPacking; + + /* should never happen */ + _mesa_problem(NULL, "_mesa_texstore_null() is called"); + return GL_FALSE; +} + + +/** + * Return the StoreTexImageFunc pointer to store an image in the given format. + */ +static StoreTexImageFunc +_mesa_get_texstore_func(gl_format format) +{ +#ifdef DEBUG + GLuint i; + for (i = 0; i < MESA_FORMAT_COUNT; i++) { + ASSERT(texstore_funcs[i].Name == i); + } +#endif + ASSERT(texstore_funcs[format].Name == format); + + if (texstore_funcs[format].Store) + return texstore_funcs[format].Store; + else + return _mesa_texstore_null; +} + + +/** + * Store user data into texture memory. + * Called via glTex[Sub]Image1/2/3D() + */ +GLboolean +_mesa_texstore(TEXSTORE_PARAMS) +{ + StoreTexImageFunc storeImage; + GLboolean success; + + storeImage = _mesa_get_texstore_func(dstFormat); + + success = storeImage(ctx, dims, baseInternalFormat, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, srcPacking); + return success; +} + + +/** Return texture size in bytes */ +static GLuint +texture_size(const struct gl_texture_image *texImage) +{ + GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width, + texImage->Height, texImage->Depth); + return sz; +} + + +/** Return row stride in bytes */ +static GLuint +texture_row_stride(const struct gl_texture_image *texImage) +{ + GLuint stride = _mesa_format_row_stride(texImage->TexFormat, + texImage->Width); + return stride; +} + + + +/** + * This is the software fallback for Driver.TexImage1D() + * and Driver.CopyTexImage1D(). + * \sa _mesa_store_teximage2d() + */ +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) +{ + GLuint sizeInBytes; + (void) border; + + /* allocate memory */ + sizeInBytes = texture_size(texImage); + texImage->Data = _mesa_alloc_texmemory(sizeInBytes); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); + return; + } + + pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, + pixels, packing, "glTexImage1D"); + if (!pixels) { + /* Note: we check for a NULL image pointer here, _after_ we allocated + * memory for the texture. That's what the GL spec calls for. + */ + return; + } + else { + const GLint dstRowStride = 0; + GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + 0, 0, 0, /* dstX/Y/Zoffset */ + dstRowStride, + texImage->ImageOffsets, + width, 1, 1, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + +/** + * This is the software fallback for Driver.TexImage2D() + * and Driver.CopyTexImage2D(). + * + * This function is oriented toward storing images in main memory, rather + * than VRAM. Device driver's can easily plug in their own replacement. + */ +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 void *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage) +{ + GLuint sizeInBytes; + (void) border; + + /* allocate memory */ + sizeInBytes = texture_size(texImage); + texImage->Data = _mesa_alloc_texmemory(sizeInBytes); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + return; + } + + pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type, + pixels, packing, "glTexImage2D"); + if (!pixels) { + /* Note: we check for a NULL image pointer here, _after_ we allocated + * memory for the texture. That's what the GL spec calls for. + */ + return; + } + else { + GLint dstRowStride = texture_row_stride(texImage); + GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + 0, 0, 0, /* dstX/Y/Zoffset */ + dstRowStride, + texImage->ImageOffsets, + width, height, 1, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + + +/** + * This is the software fallback for Driver.TexImage3D() + * and Driver.CopyTexImage3D(). + * \sa _mesa_store_teximage2d() + */ +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 void *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage) +{ + GLuint sizeInBytes; + (void) border; + + /* allocate memory */ + sizeInBytes = texture_size(texImage); + texImage->Data = _mesa_alloc_texmemory(sizeInBytes); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); + return; + } + + pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, + type, pixels, packing, "glTexImage3D"); + if (!pixels) { + /* Note: we check for a NULL image pointer here, _after_ we allocated + * memory for the texture. That's what the GL spec calls for. + */ + return; + } + else { + GLint dstRowStride = texture_row_stride(texImage); + GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + 0, 0, 0, /* dstX/Y/Zoffset */ + dstRowStride, + texImage->ImageOffsets, + width, height, depth, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + + + +/* + * This is the software fallback for Driver.TexSubImage1D() + * and Driver.CopyTexSubImage1D(). + */ +void +_mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level, + GLint xoffset, GLint width, + GLenum format, GLenum type, const void *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage) +{ + /* get pointer to src pixels (may be in a pbo which we'll map here) */ + pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, + pixels, packing, "glTexSubImage1D"); + if (!pixels) + return; + + { + const GLint dstRowStride = 0; + GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + xoffset, 0, 0, /* offsets */ + dstRowStride, + texImage->ImageOffsets, + width, 1, 1, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + + +/** + * This is the software fallback for Driver.TexSubImage2D() + * and Driver.CopyTexSubImage2D(). + */ +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 void *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage) +{ + /* get pointer to src pixels (may be in a pbo which we'll map here) */ + pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type, + pixels, packing, "glTexSubImage2D"); + if (!pixels) + return; + + { + GLint dstRowStride = texture_row_stride(texImage); + GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + xoffset, yoffset, 0, + dstRowStride, + texImage->ImageOffsets, + width, height, 1, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + +/* + * This is the software fallback for Driver.TexSubImage3D(). + * and Driver.CopyTexSubImage3D(). + */ +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 void *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage) +{ + /* get pointer to src pixels (may be in a pbo which we'll map here) */ + pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, + type, pixels, packing, + "glTexSubImage3D"); + if (!pixels) + return; + + { + GLint dstRowStride = texture_row_stride(texImage); + GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat, + texImage->TexFormat, + texImage->Data, + xoffset, yoffset, zoffset, + dstRowStride, + texImage->ImageOffsets, + width, height, depth, + format, type, pixels, packing); + if (!success) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D"); + } + } + + _mesa_unmap_teximage_pbo(ctx, packing); +} + + +/* + * Fallback for Driver.CompressedTexImage1D() + */ +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) +{ + /* this space intentionally left blank */ + (void) ctx; + (void) target; (void) level; + (void) internalFormat; + (void) width; (void) border; + (void) imageSize; (void) data; + (void) texObj; + (void) texImage; +} + + + +/** + * Fallback for Driver.CompressedTexImage2D() + */ +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) +{ + (void) width; (void) height; (void) border; + + /* This is pretty simple, basically just do a memcpy without worrying + * about the usual image unpacking or image transfer operations. + */ + ASSERT(texObj); + ASSERT(texImage); + ASSERT(texImage->Width > 0); + ASSERT(texImage->Height > 0); + ASSERT(texImage->Depth == 1); + ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */ + + /* allocate storage */ + texImage->Data = _mesa_alloc_texmemory(imageSize); + if (!texImage->Data) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB"); + return; + } + + data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, + &ctx->Unpack, + "glCompressedTexImage2D"); + if (!data) + return; + + /* copy the data */ + memcpy(texImage->Data, data, imageSize); + + _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack); +} + + + +/* + * Fallback for Driver.CompressedTexImage3D() + */ +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) +{ + /* this space intentionally left blank */ + (void) ctx; + (void) target; (void) level; + (void) internalFormat; + (void) width; (void) height; (void) depth; + (void) border; + (void) imageSize; (void) data; + (void) texObj; + (void) texImage; +} + + + +/** + * Fallback for Driver.CompressedTexSubImage1D() + */ +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) +{ + /* there are no compressed 1D texture formats yet */ + (void) ctx; + (void) target; (void) level; + (void) xoffset; (void) width; + (void) format; + (void) imageSize; (void) data; + (void) texObj; + (void) texImage; +} + + +/** + * Fallback for Driver.CompressedTexSubImage2D() + */ +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) +{ + GLint bytesPerRow, destRowStride, srcRowStride; + GLint i, rows; + GLubyte *dest; + const GLubyte *src; + const gl_format texFormat = texImage->TexFormat; + const GLint destWidth = texImage->Width; + GLuint bw, bh; + + _mesa_get_format_block_size(texFormat, &bw, &bh); + + (void) level; + (void) format; + + /* these should have been caught sooner */ + ASSERT((width % bw) == 0 || width == 2 || width == 1); + ASSERT((height % bh) == 0 || height == 2 || height == 1); + ASSERT((xoffset % bw) == 0); + ASSERT((yoffset % bh) == 0); + + /* get pointer to src pixels (may be in a pbo which we'll map here) */ + data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, + &ctx->Unpack, + "glCompressedTexSubImage2D"); + if (!data) + return; + + srcRowStride = _mesa_format_row_stride(texFormat, width); + src = (const GLubyte *) data; + + destRowStride = _mesa_format_row_stride(texFormat, destWidth); + dest = _mesa_compressed_image_address(xoffset, yoffset, 0, + texFormat, destWidth, + (GLubyte *) texImage->Data); + + bytesPerRow = srcRowStride; /* bytes per row of blocks */ + rows = height / bh; /* rows in blocks */ + + /* copy rows of blocks */ + for (i = 0; i < rows; i++) { + memcpy(dest, src, bytesPerRow); + dest += destRowStride; + src += srcRowStride; + } + + _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack); +} + + +/** + * Fallback for Driver.CompressedTexSubImage3D() + */ +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) +{ + /* there are no compressed 3D texture formats yet */ + (void) ctx; + (void) target; (void) level; + (void) xoffset; (void) yoffset; (void) zoffset; + (void) width; (void) height; (void) depth; + (void) format; + (void) imageSize; (void) data; + (void) texObj; + (void) texImage; +} diff --git a/mesalib/src/mesa/main/transformfeedback.c b/mesalib/src/mesa/main/transformfeedback.c index 2ff262fc6..85c213552 100644 --- a/mesalib/src/mesa/main/transformfeedback.c +++ b/mesalib/src/mesa/main/transformfeedback.c @@ -42,7 +42,6 @@ #include "main/dispatch.h" #include "program/prog_parameter.h" -//#include "program/shader_api.h" #if FEATURE_EXT_transform_feedback @@ -507,7 +506,7 @@ _mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer) if (obj->Active) { _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindBufferRange(transform feedback active)"); + "glBindBufferBase(transform feedback active)"); return; } @@ -555,7 +554,7 @@ _mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer, if (obj->Active) { _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindBufferRange(transform feedback active)"); + "glBindBufferOffsetEXT(transform feedback active)"); return; } @@ -885,7 +884,7 @@ _mesa_ResumeTransformFeedback(void) if (!obj->Active || !obj->Paused) { _mesa_error(ctx, GL_INVALID_OPERATION, - "glPauseTransformFeedback(feedback not active or not paused)"); + "glResumeTransformFeedback(feedback not active or not paused)"); return; } @@ -932,15 +931,4 @@ _mesa_DrawTransformFeedback(GLenum mode, GLuint name) } -/* -XXX misc to do: - -glGet*() for - -GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED -GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE -GL_TRANSFORM_FEEDBACK_BINDING -*/ - - #endif /* FEATURE_EXT_transform_feedback */ diff --git a/mesalib/src/mesa/main/varray.c b/mesalib/src/mesa/main/varray.c index d20e2c719..6b888b485 100644 --- a/mesalib/src/mesa/main/varray.c +++ b/mesalib/src/mesa/main/varray.c @@ -1,1205 +1,1208 @@ -/* - * 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 "bufferobj.h" -#include "context.h" -#include "enable.h" -#include "enums.h" -#include "hash.h" -#include "image.h" -#include "macros.h" -#include "mfeatures.h" -#include "mtypes.h" -#include "varray.h" -#include "arrayobj.h" -#include "main/dispatch.h" - - -/** Used to do error checking for GL_EXT_vertex_array_bgra */ -#define BGRA_OR_4 5 - - -/** Used to indicate which GL datatypes are accepted by each of the - * glVertex/Color/Attrib/EtcPointer() functions. - */ -#define BOOL_BIT 0x1 -#define BYTE_BIT 0x2 -#define UNSIGNED_BYTE_BIT 0x4 -#define SHORT_BIT 0x8 -#define UNSIGNED_SHORT_BIT 0x10 -#define INT_BIT 0x20 -#define UNSIGNED_INT_BIT 0x40 -#define HALF_BIT 0x80 -#define FLOAT_BIT 0x100 -#define DOUBLE_BIT 0x200 -#define FIXED_BIT 0x400 - - - -/** Convert GL datatype enum into a _BIT value seen above */ -static GLbitfield -type_to_bit(const struct gl_context *ctx, GLenum type) -{ - switch (type) { - case GL_BOOL: - return BOOL_BIT; - case GL_BYTE: - return BYTE_BIT; - case GL_UNSIGNED_BYTE: - return UNSIGNED_BYTE_BIT; - case GL_SHORT: - return SHORT_BIT; - case GL_UNSIGNED_SHORT: - return UNSIGNED_SHORT_BIT; - case GL_INT: - return INT_BIT; - case GL_UNSIGNED_INT: - return UNSIGNED_INT_BIT; - case GL_HALF_FLOAT: - if (ctx->Extensions.ARB_half_float_vertex) - return HALF_BIT; - else - return 0x0; - case GL_FLOAT: - return FLOAT_BIT; - case GL_DOUBLE: - return DOUBLE_BIT; - case GL_FIXED: - return FIXED_BIT; - default: - return 0; - } -} - - -/** - * Do error checking and update state for glVertex/Color/TexCoord/...Pointer - * functions. - * - * \param func name of calling function used for error reporting - * \param array the array to update - * \param dirtyBit which bit to set in ctx->Array.NewState for this array - * \param legalTypes bitmask of *_BIT above indicating legal datatypes - * \param sizeMin min allowable size value - * \param sizeMax max allowable size value (may also be BGRA_OR_4) - * \param size components per element (1, 2, 3 or 4) - * \param type datatype of each component (GL_FLOAT, GL_INT, etc) - * \param stride stride between elements, in elements - * \param normalized are integer types converted to floats in [-1, 1]? - * \param integer integer-valued values (will not be normalized to [-1,1]) - * \param ptr the address (or offset inside VBO) of the array data - */ -static void -update_array(struct gl_context *ctx, - const char *func, - struct gl_client_array *array, - GLbitfield dirtyBit, GLbitfield legalTypesMask, - GLint sizeMin, GLint sizeMax, - GLint size, GLenum type, GLsizei stride, - GLboolean normalized, GLboolean integer, - const GLvoid *ptr) -{ - GLbitfield typeBit; - GLsizei elementSize; - GLenum format = GL_RGBA; - - if (ctx->API != API_OPENGLES && ctx->API != API_OPENGLES2) { - /* fixed point arrays / data is only allowed with OpenGL ES 1.x/2.0 */ - legalTypesMask &= ~FIXED_BIT; - } - - typeBit = type_to_bit(ctx, type); - if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) { - _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)", - func, _mesa_lookup_enum_by_nr(type)); - return; - } - - /* Do size parameter checking. - * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and - * must be handled specially. - */ - if (ctx->Extensions.EXT_vertex_array_bgra && - sizeMax == BGRA_OR_4 && - size == GL_BGRA) { - if (type != GL_UNSIGNED_BYTE) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func); - return; - } - format = GL_BGRA; - size = 4; - } - else if (size < sizeMin || size > sizeMax || size > 4) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size); - return; - } - - ASSERT(size <= 4); - - if (stride < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride ); - return; - } - - if (ctx->Array.ArrayObj->VBOonly && - ctx->Array.ArrayBufferObj->Name == 0) { - /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs. - * Generate GL_INVALID_OPERATION if that's not true. - */ - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func); - return; - } - - elementSize = _mesa_sizeof_type(type) * size; - - array->Size = size; - array->Type = type; - array->Format = format; - array->Stride = stride; - array->StrideB = stride ? stride : elementSize; - array->Normalized = normalized; - array->Ptr = (const GLubyte *) ptr; - array->_ElementSize = elementSize; - - _mesa_reference_buffer_object(ctx, &array->BufferObj, - ctx->Array.ArrayBufferObj); - - ctx->NewState |= _NEW_ARRAY; - ctx->Array.NewState |= dirtyBit; -} - - -void GLAPIENTRY -_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr) -{ - GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT | - DOUBLE_BIT | HALF_BIT | FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->API == API_OPENGLES) - legalTypes |= BYTE_BIT; - - update_array(ctx, "glVertexPointer", - &ctx->Array.ArrayObj->Vertex, _NEW_ARRAY_VERTEX, - legalTypes, 2, 4, - size, type, stride, GL_FALSE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr ) -{ - const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT | - HALF_BIT | FLOAT_BIT | DOUBLE_BIT | - FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glNormalPointer", - &ctx->Array.ArrayObj->Normal, _NEW_ARRAY_NORMAL, - legalTypes, 3, 3, - 3, type, stride, GL_TRUE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | - SHORT_BIT | UNSIGNED_SHORT_BIT | - INT_BIT | UNSIGNED_INT_BIT | - HALF_BIT | FLOAT_BIT | DOUBLE_BIT | - FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glColorPointer", - &ctx->Array.ArrayObj->Color, _NEW_ARRAY_COLOR0, - legalTypes, 3, BGRA_OR_4, - size, type, stride, GL_TRUE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glFogCoordPointer", - &ctx->Array.ArrayObj->FogCoord, _NEW_ARRAY_FOGCOORD, - legalTypes, 1, 1, - 1, type, stride, GL_FALSE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT | - FLOAT_BIT | DOUBLE_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glIndexPointer", - &ctx->Array.ArrayObj->Index, _NEW_ARRAY_INDEX, - legalTypes, 1, 1, - 1, type, stride, GL_FALSE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_SecondaryColorPointerEXT(GLint size, GLenum type, - GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | - SHORT_BIT | UNSIGNED_SHORT_BIT | - INT_BIT | UNSIGNED_INT_BIT | - HALF_BIT | FLOAT_BIT | DOUBLE_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glSecondaryColorPointer", - &ctx->Array.ArrayObj->SecondaryColor, _NEW_ARRAY_COLOR1, - legalTypes, 3, BGRA_OR_4, - size, type, stride, GL_TRUE, GL_FALSE, ptr); -} - - -void GLAPIENTRY -_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride, - const GLvoid *ptr) -{ - GLbitfield legalTypes = (SHORT_BIT | INT_BIT | - HALF_BIT | FLOAT_BIT | DOUBLE_BIT | - FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - const GLuint unit = ctx->Array.ActiveTexture; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->API == API_OPENGLES) - legalTypes |= BYTE_BIT; - - ASSERT(unit < Elements(ctx->Array.ArrayObj->TexCoord)); - - update_array(ctx, "glTexCoordPointer", - &ctx->Array.ArrayObj->TexCoord[unit], - _NEW_ARRAY_TEXCOORD(unit), - legalTypes, 1, 4, - size, type, stride, GL_FALSE, GL_FALSE, - ptr); -} - - -void GLAPIENTRY -_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = UNSIGNED_BYTE_BIT; - /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */ - const GLboolean integer = GL_TRUE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - update_array(ctx, "glEdgeFlagPointer", - &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG, - legalTypes, 1, 1, - 1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr); -} - - -void GLAPIENTRY -_mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (FLOAT_BIT | FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (ctx->API != API_OPENGLES) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glPointSizePointer(ES 1.x only)"); - return; - } - - update_array(ctx, "glPointSizePointer", - &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE, - legalTypes, 1, 1, - 1, type, stride, GL_FALSE, GL_FALSE, ptr); -} - - -#if FEATURE_NV_vertex_program -/** - * Set a vertex attribute array. - * Note that these arrays DO alias the conventional GL vertex arrays - * (position, normal, color, fog, texcoord, etc). - * The generic attribute slots at #16 and above are not touched. - */ -void GLAPIENTRY -_mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type, - GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | - FLOAT_BIT | DOUBLE_BIT); - GLboolean normalized = GL_FALSE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { - _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)"); - return; - } - - if (type == GL_UNSIGNED_BYTE && size != 4) { - _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)"); - return; - } - - update_array(ctx, "glVertexAttribPointerNV", - &ctx->Array.ArrayObj->VertexAttrib[index], - _NEW_ARRAY_ATTRIB(index), - legalTypes, 1, BGRA_OR_4, - size, type, stride, normalized, GL_FALSE, ptr); -} -#endif - - -#if FEATURE_ARB_vertex_program -/** - * Set a generic vertex attribute array. - * Note that these arrays DO NOT alias the conventional GL vertex arrays - * (position, normal, color, fog, texcoord, etc). - */ -void GLAPIENTRY -_mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type, - GLboolean normalized, - GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | - SHORT_BIT | UNSIGNED_SHORT_BIT | - INT_BIT | UNSIGNED_INT_BIT | - HALF_BIT | FLOAT_BIT | DOUBLE_BIT | - FIXED_BIT); - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)"); - return; - } - - update_array(ctx, "glVertexAttribPointer", - &ctx->Array.ArrayObj->VertexAttrib[index], - _NEW_ARRAY_ATTRIB(index), - legalTypes, 1, BGRA_OR_4, - size, type, stride, normalized, GL_FALSE, ptr); -} -#endif - - -/** - * GL_EXT_gpu_shader4 / GL 3.0. - * Set an integer-valued vertex attribute array. - * Note that these arrays DO NOT alias the conventional GL vertex arrays - * (position, normal, color, fog, texcoord, etc). - */ -void GLAPIENTRY -_mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type, - GLsizei stride, const GLvoid *ptr) -{ - const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | - SHORT_BIT | UNSIGNED_SHORT_BIT | - INT_BIT | UNSIGNED_INT_BIT); - const GLboolean normalized = GL_FALSE; - const GLboolean integer = GL_TRUE; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)"); - return; - } - - update_array(ctx, "glVertexAttribIPointer", - &ctx->Array.ArrayObj->VertexAttrib[index], - _NEW_ARRAY_ATTRIB(index), - legalTypes, 1, 4, - size, type, stride, normalized, integer, ptr); -} - - - -void GLAPIENTRY -_mesa_EnableVertexAttribArrayARB(GLuint index) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glEnableVertexAttribArrayARB(index)"); - return; - } - - ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); - - FLUSH_VERTICES(ctx, _NEW_ARRAY); - ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_TRUE; - ctx->Array.ArrayObj->_Enabled |= _NEW_ARRAY_ATTRIB(index); - ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index); -} - - -void GLAPIENTRY -_mesa_DisableVertexAttribArrayARB(GLuint index) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glDisableVertexAttribArrayARB(index)"); - return; - } - - ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); - - FLUSH_VERTICES(ctx, _NEW_ARRAY); - ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE; - ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index); - ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index); -} - - -/** - * Return info for a vertex attribute array (no alias with legacy - * vertex attributes (pos, normal, color, etc)). This function does - * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query. - */ -static GLuint -get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname, - const char *caller) -{ - const struct gl_client_array *array; - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index); - return 0; - } - - ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); - - array = &ctx->Array.ArrayObj->VertexAttrib[index]; - - switch (pname) { - case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB: - return array->Enabled; - case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB: - return array->Size; - case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB: - return array->Stride; - case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB: - return array->Type; - case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB: - return array->Normalized; - case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB: - return array->BufferObj->Name; - case GL_VERTEX_ATTRIB_ARRAY_INTEGER: - if (ctx->Extensions.EXT_gpu_shader4) { - return array->Integer; - } - goto error; - case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB: - if (ctx->Extensions.ARB_instanced_arrays) { - return array->InstanceDivisor; - } - goto error; - default: - ; /* fall-through */ - } - -error: - _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname); - return 0; -} - - -static const GLfloat * -get_current_attrib(struct gl_context *ctx, GLuint index, const char *function) -{ - if (index == 0) { - if (ctx->API != API_OPENGLES2) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function); - return NULL; - } - } - else if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, - "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function); - return NULL; - } - - FLUSH_CURRENT(ctx, 0); - return ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index]; -} - -void GLAPIENTRY -_mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { - const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribfv"); - if (v != NULL) { - COPY_4V(params, v); - } - } - else { - params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname, - "glGetVertexAttribfv"); - } -} - - -void GLAPIENTRY -_mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { - const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribdv"); - if (v != NULL) { - params[0] = (GLdouble) v[0]; - params[1] = (GLdouble) v[1]; - params[2] = (GLdouble) v[2]; - params[3] = (GLdouble) v[3]; - } - } - else { - params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname, - "glGetVertexAttribdv"); - } -} - - -void GLAPIENTRY -_mesa_GetVertexAttribivARB(GLuint index, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { - const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribiv"); - if (v != NULL) { - /* XXX should floats in[0,1] be scaled to full int range? */ - params[0] = (GLint) v[0]; - params[1] = (GLint) v[1]; - params[2] = (GLint) v[2]; - params[3] = (GLint) v[3]; - } - } - else { - params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname, - "glGetVertexAttribiv"); - } -} - - -/** GL 3.0 */ -void GLAPIENTRY -_mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { - const GLfloat *v = - get_current_attrib(ctx, index, "glGetVertexAttribIiv"); - if (v != NULL) { - /* XXX we don't have true integer-valued vertex attribs yet */ - params[0] = (GLint) v[0]; - params[1] = (GLint) v[1]; - params[2] = (GLint) v[2]; - params[3] = (GLint) v[3]; - } - } - else { - params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname, - "glGetVertexAttribIiv"); - } -} - - -/** GL 3.0 */ -void GLAPIENTRY -_mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { - const GLfloat *v = - get_current_attrib(ctx, index, "glGetVertexAttribIuiv"); - if (v != NULL) { - /* XXX we don't have true integer-valued vertex attribs yet */ - params[0] = (GLuint) v[0]; - params[1] = (GLuint) v[1]; - params[2] = (GLuint) v[2]; - params[3] = (GLuint) v[3]; - } - } - else { - params[0] = get_vertex_array_attrib(ctx, index, pname, - "glGetVertexAttribIuiv"); - } -} - - -void GLAPIENTRY -_mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)"); - return; - } - - if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) { - _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)"); - return; - } - - ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); - - *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr; -} - - -void GLAPIENTRY -_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride, - GLsizei count, const GLvoid *ptr) -{ - (void) count; - _mesa_VertexPointer(size, type, stride, ptr); -} - - -void GLAPIENTRY -_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, - const GLvoid *ptr) -{ - (void) count; - _mesa_NormalPointer(type, stride, ptr); -} - - -void GLAPIENTRY -_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, - const GLvoid *ptr) -{ - (void) count; - _mesa_ColorPointer(size, type, stride, ptr); -} - - -void GLAPIENTRY -_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, - const GLvoid *ptr) -{ - (void) count; - _mesa_IndexPointer(type, stride, ptr); -} - - -void GLAPIENTRY -_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, - GLsizei count, const GLvoid *ptr) -{ - (void) count; - _mesa_TexCoordPointer(size, type, stride, ptr); -} - - -void GLAPIENTRY -_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr) -{ - (void) count; - _mesa_EdgeFlagPointer(stride, ptr); -} - - -void GLAPIENTRY -_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer) -{ - GET_CURRENT_CONTEXT(ctx); - GLboolean tflag, cflag, nflag; /* enable/disable flags */ - GLint tcomps, ccomps, vcomps; /* components per texcoord, color, vertex */ - GLenum ctype = 0; /* color type */ - GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */ - const GLint toffset = 0; /* always zero */ - GLint defstride; /* default stride */ - GLint c, f; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - f = sizeof(GLfloat); - c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f); - - if (stride < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" ); - return; - } - - switch (format) { - case GL_V2F: - tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE; - tcomps = 0; ccomps = 0; vcomps = 2; - voffset = 0; - defstride = 2*f; - break; - case GL_V3F: - tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE; - tcomps = 0; ccomps = 0; vcomps = 3; - voffset = 0; - defstride = 3*f; - break; - case GL_C4UB_V2F: - tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; - tcomps = 0; ccomps = 4; vcomps = 2; - ctype = GL_UNSIGNED_BYTE; - coffset = 0; - voffset = c; - defstride = c + 2*f; - break; - case GL_C4UB_V3F: - tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; - tcomps = 0; ccomps = 4; vcomps = 3; - ctype = GL_UNSIGNED_BYTE; - coffset = 0; - voffset = c; - defstride = c + 3*f; - break; - case GL_C3F_V3F: - tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; - tcomps = 0; ccomps = 3; vcomps = 3; - ctype = GL_FLOAT; - coffset = 0; - voffset = 3*f; - defstride = 6*f; - break; - case GL_N3F_V3F: - tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_TRUE; - tcomps = 0; ccomps = 0; vcomps = 3; - noffset = 0; - voffset = 3*f; - defstride = 6*f; - break; - case GL_C4F_N3F_V3F: - tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_TRUE; - tcomps = 0; ccomps = 4; vcomps = 3; - ctype = GL_FLOAT; - coffset = 0; - noffset = 4*f; - voffset = 7*f; - defstride = 10*f; - break; - case GL_T2F_V3F: - tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE; - tcomps = 2; ccomps = 0; vcomps = 3; - voffset = 2*f; - defstride = 5*f; - break; - case GL_T4F_V4F: - tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE; - tcomps = 4; ccomps = 0; vcomps = 4; - voffset = 4*f; - defstride = 8*f; - break; - case GL_T2F_C4UB_V3F: - tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE; - tcomps = 2; ccomps = 4; vcomps = 3; - ctype = GL_UNSIGNED_BYTE; - coffset = 2*f; - voffset = c+2*f; - defstride = c+5*f; - break; - case GL_T2F_C3F_V3F: - tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE; - tcomps = 2; ccomps = 3; vcomps = 3; - ctype = GL_FLOAT; - coffset = 2*f; - voffset = 5*f; - defstride = 8*f; - break; - case GL_T2F_N3F_V3F: - tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_TRUE; - tcomps = 2; ccomps = 0; vcomps = 3; - noffset = 2*f; - voffset = 5*f; - defstride = 8*f; - break; - case GL_T2F_C4F_N3F_V3F: - tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE; - tcomps = 2; ccomps = 4; vcomps = 3; - ctype = GL_FLOAT; - coffset = 2*f; - noffset = 6*f; - voffset = 9*f; - defstride = 12*f; - break; - case GL_T4F_C4F_N3F_V4F: - tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE; - tcomps = 4; ccomps = 4; vcomps = 4; - ctype = GL_FLOAT; - coffset = 4*f; - noffset = 8*f; - voffset = 11*f; - defstride = 15*f; - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" ); - return; - } - - if (stride==0) { - stride = defstride; - } - - _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY ); - _mesa_DisableClientState( GL_INDEX_ARRAY ); - /* XXX also disable secondary color and generic arrays? */ - - /* Texcoords */ - if (tflag) { - _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY ); - _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride, - (GLubyte *) pointer + toffset ); - } - else { - _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY ); - } - - /* Color */ - if (cflag) { - _mesa_EnableClientState( GL_COLOR_ARRAY ); - _mesa_ColorPointer( ccomps, ctype, stride, - (GLubyte *) pointer + coffset ); - } - else { - _mesa_DisableClientState( GL_COLOR_ARRAY ); - } - - - /* Normals */ - if (nflag) { - _mesa_EnableClientState( GL_NORMAL_ARRAY ); - _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset ); - } - else { - _mesa_DisableClientState( GL_NORMAL_ARRAY ); - } - - /* Vertices */ - _mesa_EnableClientState( GL_VERTEX_ARRAY ); - _mesa_VertexPointer( vcomps, GL_FLOAT, stride, - (GLubyte *) pointer + voffset ); -} - - -void GLAPIENTRY -_mesa_LockArraysEXT(GLint first, GLsizei count) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glLockArrays %d %d\n", first, count); - - if (first < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" ); - return; - } - if (count <= 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" ); - return; - } - if (ctx->Array.LockCount != 0) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" ); - return; - } - - ctx->Array.LockFirst = first; - ctx->Array.LockCount = count; - - ctx->NewState |= _NEW_ARRAY; - ctx->Array.NewState |= _NEW_ARRAY_ALL; -} - - -void GLAPIENTRY -_mesa_UnlockArraysEXT( void ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glUnlockArrays\n"); - - if (ctx->Array.LockCount == 0) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" ); - return; - } - - ctx->Array.LockFirst = 0; - ctx->Array.LockCount = 0; - ctx->NewState |= _NEW_ARRAY; - ctx->Array.NewState |= _NEW_ARRAY_ALL; -} - - -/* GL_EXT_multi_draw_arrays */ -void GLAPIENTRY -_mesa_MultiDrawArraysEXT( GLenum mode, const GLint *first, - const GLsizei *count, GLsizei primcount ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - for (i = 0; i < primcount; i++) { - if (count[i] > 0) { - CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i])); - } - } -} - - -/* GL_IBM_multimode_draw_arrays */ -void GLAPIENTRY -_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first, - const GLsizei * count, - GLsizei primcount, GLint modestride ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - for ( i = 0 ; i < primcount ; i++ ) { - if ( count[i] > 0 ) { - GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); - CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] )); - } - } -} - - -/* GL_IBM_multimode_draw_arrays */ -void GLAPIENTRY -_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count, - GLenum type, const GLvoid * const * indices, - GLsizei primcount, GLint modestride ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - /* XXX not sure about ARB_vertex_buffer_object handling here */ - - for ( i = 0 ; i < primcount ; i++ ) { - if ( count[i] > 0 ) { - GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); - CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] )); - } - } -} - - -/** - * GL_NV_primitive_restart and GL 3.1 - */ -void GLAPIENTRY -_mesa_PrimitiveRestartIndex(GLuint index) -{ - GET_CURRENT_CONTEXT(ctx); - - if (!ctx->Extensions.NV_primitive_restart && - ctx->VersionMajor * 10 + ctx->VersionMinor < 31) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()"); - return; - } - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - FLUSH_VERTICES(ctx, _NEW_TRANSFORM); - - ctx->Array.RestartIndex = index; -} - - -/** - * See GL_ARB_instanced_arrays. - * Note that the instance divisor only applies to generic arrays, not - * the legacy vertex arrays. - */ -void GLAPIENTRY -_mesa_VertexAttribDivisor(GLuint index, GLuint divisor) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (!ctx->Extensions.ARB_instanced_arrays) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()"); - return; - } - - if (index >= ctx->Const.VertexProgram.MaxAttribs) { - _mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)", - index); - return; - } - - ctx->Array.ArrayObj->VertexAttrib[index].InstanceDivisor = divisor; -} - - - -/** - * Copy one client vertex array to another. - */ -void -_mesa_copy_client_array(struct gl_context *ctx, - struct gl_client_array *dst, - struct gl_client_array *src) -{ - dst->Size = src->Size; - dst->Type = src->Type; - dst->Format = src->Format; - dst->Stride = src->Stride; - dst->StrideB = src->StrideB; - dst->Ptr = src->Ptr; - dst->Enabled = src->Enabled; - dst->Normalized = src->Normalized; - dst->Integer = src->Integer; - dst->InstanceDivisor = src->InstanceDivisor; - dst->_ElementSize = src->_ElementSize; - _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj); - dst->_MaxElement = src->_MaxElement; -} - - - -/** - * Print vertex array's fields. - */ -static void -print_array(const char *name, GLint index, const struct gl_client_array *array) -{ - if (index >= 0) - printf(" %s[%d]: ", name, index); - else - printf(" %s: ", name); - printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n", - array->Ptr, array->Type, array->Size, - array->_ElementSize, array->StrideB, - array->BufferObj->Name, (unsigned long) array->BufferObj->Size, - array->_MaxElement); -} - - -/** - * Print current vertex object/array info. For debug. - */ -void -_mesa_print_arrays(struct gl_context *ctx) -{ - struct gl_array_object *arrayObj = ctx->Array.ArrayObj; - GLuint i; - - _mesa_update_array_object_max_element(ctx, arrayObj); - - printf("Array Object %u\n", arrayObj->Name); - if (arrayObj->Vertex.Enabled) - print_array("Vertex", -1, &arrayObj->Vertex); - if (arrayObj->Normal.Enabled) - print_array("Normal", -1, &arrayObj->Normal); - if (arrayObj->Color.Enabled) - print_array("Color", -1, &arrayObj->Color); - for (i = 0; i < Elements(arrayObj->TexCoord); i++) - if (arrayObj->TexCoord[i].Enabled) - print_array("TexCoord", i, &arrayObj->TexCoord[i]); - for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) - if (arrayObj->VertexAttrib[i].Enabled) - print_array("Attrib", i, &arrayObj->VertexAttrib[i]); - printf(" _MaxElement = %u\n", arrayObj->_MaxElement); -} - - -/** - * Initialize vertex array state for given context. - */ -void -_mesa_init_varray(struct gl_context *ctx) -{ - ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0); - _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, - ctx->Array.DefaultArrayObj); - ctx->Array.ActiveTexture = 0; /* GL_ARB_multitexture */ - - ctx->Array.Objects = _mesa_NewHashTable(); -} - - -/** - * Callback for deleting an array object. Called by _mesa_HashDeleteAll(). - */ -static void -delete_arrayobj_cb(GLuint id, void *data, void *userData) -{ - struct gl_array_object *arrayObj = (struct gl_array_object *) data; - struct gl_context *ctx = (struct gl_context *) userData; - _mesa_delete_array_object(ctx, arrayObj); -} - - -/** - * Free vertex array state for given context. - */ -void -_mesa_free_varray_data(struct gl_context *ctx) -{ - _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx); - _mesa_DeleteHashTable(ctx->Array.Objects); -} +/* + * 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 "bufferobj.h" +#include "context.h" +#include "enable.h" +#include "enums.h" +#include "hash.h" +#include "image.h" +#include "macros.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "varray.h" +#include "arrayobj.h" +#include "main/dispatch.h" + + +/** Used to do error checking for GL_EXT_vertex_array_bgra */ +#define BGRA_OR_4 5 + + +/** Used to indicate which GL datatypes are accepted by each of the + * glVertex/Color/Attrib/EtcPointer() functions. + */ +#define BOOL_BIT 0x1 +#define BYTE_BIT 0x2 +#define UNSIGNED_BYTE_BIT 0x4 +#define SHORT_BIT 0x8 +#define UNSIGNED_SHORT_BIT 0x10 +#define INT_BIT 0x20 +#define UNSIGNED_INT_BIT 0x40 +#define HALF_BIT 0x80 +#define FLOAT_BIT 0x100 +#define DOUBLE_BIT 0x200 +#define FIXED_ES_BIT 0x400 +#define FIXED_GL_BIT 0x800 + + +/** Convert GL datatype enum into a _BIT value seen above */ +static GLbitfield +type_to_bit(const struct gl_context *ctx, GLenum type) +{ + switch (type) { + case GL_BOOL: + return BOOL_BIT; + case GL_BYTE: + return BYTE_BIT; + case GL_UNSIGNED_BYTE: + return UNSIGNED_BYTE_BIT; + case GL_SHORT: + return SHORT_BIT; + case GL_UNSIGNED_SHORT: + return UNSIGNED_SHORT_BIT; + case GL_INT: + return INT_BIT; + case GL_UNSIGNED_INT: + return UNSIGNED_INT_BIT; + case GL_HALF_FLOAT: + if (ctx->Extensions.ARB_half_float_vertex) + return HALF_BIT; + else + return 0x0; + case GL_FLOAT: + return FLOAT_BIT; + case GL_DOUBLE: + return DOUBLE_BIT; + case GL_FIXED: + return ctx->API == API_OPENGL ? FIXED_GL_BIT : FIXED_ES_BIT; + default: + return 0; + } +} + + +/** + * Do error checking and update state for glVertex/Color/TexCoord/...Pointer + * functions. + * + * \param func name of calling function used for error reporting + * \param array the array to update + * \param dirtyBit which bit to set in ctx->Array.NewState for this array + * \param legalTypes bitmask of *_BIT above indicating legal datatypes + * \param sizeMin min allowable size value + * \param sizeMax max allowable size value (may also be BGRA_OR_4) + * \param size components per element (1, 2, 3 or 4) + * \param type datatype of each component (GL_FLOAT, GL_INT, etc) + * \param stride stride between elements, in elements + * \param normalized are integer types converted to floats in [-1, 1]? + * \param integer integer-valued values (will not be normalized to [-1,1]) + * \param ptr the address (or offset inside VBO) of the array data + */ +static void +update_array(struct gl_context *ctx, + const char *func, + struct gl_client_array *array, + GLbitfield dirtyBit, GLbitfield legalTypesMask, + GLint sizeMin, GLint sizeMax, + GLint size, GLenum type, GLsizei stride, + GLboolean normalized, GLboolean integer, + const GLvoid *ptr) +{ + GLbitfield typeBit; + GLsizei elementSize; + GLenum format = GL_RGBA; + + if (ctx->API != API_OPENGLES && ctx->API != API_OPENGLES2) { + /* fixed point arrays / data is only allowed with OpenGL ES 1.x/2.0 */ + legalTypesMask &= ~FIXED_ES_BIT; + } + if (!ctx->Extensions.ARB_ES2_compatibility) { + legalTypesMask &= ~FIXED_GL_BIT; + } + + typeBit = type_to_bit(ctx, type); + if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) { + _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)", + func, _mesa_lookup_enum_by_nr(type)); + return; + } + + /* Do size parameter checking. + * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and + * must be handled specially. + */ + if (ctx->Extensions.EXT_vertex_array_bgra && + sizeMax == BGRA_OR_4 && + size == GL_BGRA) { + if (type != GL_UNSIGNED_BYTE) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func); + return; + } + format = GL_BGRA; + size = 4; + } + else if (size < sizeMin || size > sizeMax || size > 4) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size); + return; + } + + ASSERT(size <= 4); + + if (stride < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride ); + return; + } + + if (ctx->Array.ArrayObj->VBOonly && + ctx->Array.ArrayBufferObj->Name == 0) { + /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs. + * Generate GL_INVALID_OPERATION if that's not true. + */ + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func); + return; + } + + elementSize = _mesa_sizeof_type(type) * size; + + array->Size = size; + array->Type = type; + array->Format = format; + array->Stride = stride; + array->StrideB = stride ? stride : elementSize; + array->Normalized = normalized; + array->Ptr = (const GLubyte *) ptr; + array->_ElementSize = elementSize; + + _mesa_reference_buffer_object(ctx, &array->BufferObj, + ctx->Array.ArrayBufferObj); + + ctx->NewState |= _NEW_ARRAY; + ctx->Array.NewState |= dirtyBit; +} + + +void GLAPIENTRY +_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr) +{ + GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT | + DOUBLE_BIT | HALF_BIT | FIXED_ES_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (ctx->API == API_OPENGLES) + legalTypes |= BYTE_BIT; + + update_array(ctx, "glVertexPointer", + &ctx->Array.ArrayObj->Vertex, _NEW_ARRAY_VERTEX, + legalTypes, 2, 4, + size, type, stride, GL_FALSE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr ) +{ + const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT | + HALF_BIT | FLOAT_BIT | DOUBLE_BIT | + FIXED_ES_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glNormalPointer", + &ctx->Array.ArrayObj->Normal, _NEW_ARRAY_NORMAL, + legalTypes, 3, 3, + 3, type, stride, GL_TRUE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | + SHORT_BIT | UNSIGNED_SHORT_BIT | + INT_BIT | UNSIGNED_INT_BIT | + HALF_BIT | FLOAT_BIT | DOUBLE_BIT | + FIXED_ES_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glColorPointer", + &ctx->Array.ArrayObj->Color, _NEW_ARRAY_COLOR0, + legalTypes, 3, BGRA_OR_4, + size, type, stride, GL_TRUE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glFogCoordPointer", + &ctx->Array.ArrayObj->FogCoord, _NEW_ARRAY_FOGCOORD, + legalTypes, 1, 1, + 1, type, stride, GL_FALSE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT | + FLOAT_BIT | DOUBLE_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glIndexPointer", + &ctx->Array.ArrayObj->Index, _NEW_ARRAY_INDEX, + legalTypes, 1, 1, + 1, type, stride, GL_FALSE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_SecondaryColorPointerEXT(GLint size, GLenum type, + GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | + SHORT_BIT | UNSIGNED_SHORT_BIT | + INT_BIT | UNSIGNED_INT_BIT | + HALF_BIT | FLOAT_BIT | DOUBLE_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glSecondaryColorPointer", + &ctx->Array.ArrayObj->SecondaryColor, _NEW_ARRAY_COLOR1, + legalTypes, 3, BGRA_OR_4, + size, type, stride, GL_TRUE, GL_FALSE, ptr); +} + + +void GLAPIENTRY +_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride, + const GLvoid *ptr) +{ + GLbitfield legalTypes = (SHORT_BIT | INT_BIT | + HALF_BIT | FLOAT_BIT | DOUBLE_BIT | + FIXED_ES_BIT); + GET_CURRENT_CONTEXT(ctx); + const GLuint unit = ctx->Array.ActiveTexture; + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (ctx->API == API_OPENGLES) + legalTypes |= BYTE_BIT; + + ASSERT(unit < Elements(ctx->Array.ArrayObj->TexCoord)); + + update_array(ctx, "glTexCoordPointer", + &ctx->Array.ArrayObj->TexCoord[unit], + _NEW_ARRAY_TEXCOORD(unit), + legalTypes, 1, 4, + size, type, stride, GL_FALSE, GL_FALSE, + ptr); +} + + +void GLAPIENTRY +_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = UNSIGNED_BYTE_BIT; + /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */ + const GLboolean integer = GL_TRUE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + update_array(ctx, "glEdgeFlagPointer", + &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG, + legalTypes, 1, 1, + 1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr); +} + + +void GLAPIENTRY +_mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (FLOAT_BIT | FIXED_ES_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (ctx->API != API_OPENGLES) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPointSizePointer(ES 1.x only)"); + return; + } + + update_array(ctx, "glPointSizePointer", + &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE, + legalTypes, 1, 1, + 1, type, stride, GL_FALSE, GL_FALSE, ptr); +} + + +#if FEATURE_NV_vertex_program +/** + * Set a vertex attribute array. + * Note that these arrays DO alias the conventional GL vertex arrays + * (position, normal, color, fog, texcoord, etc). + * The generic attribute slots at #16 and above are not touched. + */ +void GLAPIENTRY +_mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type, + GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | + FLOAT_BIT | DOUBLE_BIT); + GLboolean normalized = GL_FALSE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)"); + return; + } + + if (type == GL_UNSIGNED_BYTE && size != 4) { + _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)"); + return; + } + + update_array(ctx, "glVertexAttribPointerNV", + &ctx->Array.ArrayObj->VertexAttrib[index], + _NEW_ARRAY_ATTRIB(index), + legalTypes, 1, BGRA_OR_4, + size, type, stride, normalized, GL_FALSE, ptr); +} +#endif + + +#if FEATURE_ARB_vertex_program +/** + * Set a generic vertex attribute array. + * Note that these arrays DO NOT alias the conventional GL vertex arrays + * (position, normal, color, fog, texcoord, etc). + */ +void GLAPIENTRY +_mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type, + GLboolean normalized, + GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | + SHORT_BIT | UNSIGNED_SHORT_BIT | + INT_BIT | UNSIGNED_INT_BIT | + HALF_BIT | FLOAT_BIT | DOUBLE_BIT | + FIXED_ES_BIT | FIXED_GL_BIT); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)"); + return; + } + + update_array(ctx, "glVertexAttribPointer", + &ctx->Array.ArrayObj->VertexAttrib[index], + _NEW_ARRAY_ATTRIB(index), + legalTypes, 1, BGRA_OR_4, + size, type, stride, normalized, GL_FALSE, ptr); +} +#endif + + +/** + * GL_EXT_gpu_shader4 / GL 3.0. + * Set an integer-valued vertex attribute array. + * Note that these arrays DO NOT alias the conventional GL vertex arrays + * (position, normal, color, fog, texcoord, etc). + */ +void GLAPIENTRY +_mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type, + GLsizei stride, const GLvoid *ptr) +{ + const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT | + SHORT_BIT | UNSIGNED_SHORT_BIT | + INT_BIT | UNSIGNED_INT_BIT); + const GLboolean normalized = GL_FALSE; + const GLboolean integer = GL_TRUE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)"); + return; + } + + update_array(ctx, "glVertexAttribIPointer", + &ctx->Array.ArrayObj->VertexAttrib[index], + _NEW_ARRAY_ATTRIB(index), + legalTypes, 1, 4, + size, type, stride, normalized, integer, ptr); +} + + + +void GLAPIENTRY +_mesa_EnableVertexAttribArrayARB(GLuint index) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glEnableVertexAttribArrayARB(index)"); + return; + } + + ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); + + FLUSH_VERTICES(ctx, _NEW_ARRAY); + ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_TRUE; + ctx->Array.ArrayObj->_Enabled |= _NEW_ARRAY_ATTRIB(index); + ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index); +} + + +void GLAPIENTRY +_mesa_DisableVertexAttribArrayARB(GLuint index) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glDisableVertexAttribArrayARB(index)"); + return; + } + + ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); + + FLUSH_VERTICES(ctx, _NEW_ARRAY); + ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE; + ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index); + ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index); +} + + +/** + * Return info for a vertex attribute array (no alias with legacy + * vertex attributes (pos, normal, color, etc)). This function does + * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query. + */ +static GLuint +get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname, + const char *caller) +{ + const struct gl_client_array *array; + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index); + return 0; + } + + ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); + + array = &ctx->Array.ArrayObj->VertexAttrib[index]; + + switch (pname) { + case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB: + return array->Enabled; + case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB: + return array->Size; + case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB: + return array->Stride; + case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB: + return array->Type; + case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB: + return array->Normalized; + case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB: + return array->BufferObj->Name; + case GL_VERTEX_ATTRIB_ARRAY_INTEGER: + if (ctx->Extensions.EXT_gpu_shader4) { + return array->Integer; + } + goto error; + case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB: + if (ctx->Extensions.ARB_instanced_arrays) { + return array->InstanceDivisor; + } + goto error; + default: + ; /* fall-through */ + } + +error: + _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname); + return 0; +} + + +static const GLfloat * +get_current_attrib(struct gl_context *ctx, GLuint index, const char *function) +{ + if (index == 0) { + if (ctx->API != API_OPENGLES2) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function); + return NULL; + } + } + else if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, + "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function); + return NULL; + } + + FLUSH_CURRENT(ctx, 0); + return ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index]; +} + +void GLAPIENTRY +_mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { + const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribfv"); + if (v != NULL) { + COPY_4V(params, v); + } + } + else { + params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname, + "glGetVertexAttribfv"); + } +} + + +void GLAPIENTRY +_mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { + const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribdv"); + if (v != NULL) { + params[0] = (GLdouble) v[0]; + params[1] = (GLdouble) v[1]; + params[2] = (GLdouble) v[2]; + params[3] = (GLdouble) v[3]; + } + } + else { + params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname, + "glGetVertexAttribdv"); + } +} + + +void GLAPIENTRY +_mesa_GetVertexAttribivARB(GLuint index, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { + const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribiv"); + if (v != NULL) { + /* XXX should floats in[0,1] be scaled to full int range? */ + params[0] = (GLint) v[0]; + params[1] = (GLint) v[1]; + params[2] = (GLint) v[2]; + params[3] = (GLint) v[3]; + } + } + else { + params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname, + "glGetVertexAttribiv"); + } +} + + +/** GL 3.0 */ +void GLAPIENTRY +_mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { + const GLfloat *v = + get_current_attrib(ctx, index, "glGetVertexAttribIiv"); + if (v != NULL) { + /* XXX we don't have true integer-valued vertex attribs yet */ + params[0] = (GLint) v[0]; + params[1] = (GLint) v[1]; + params[2] = (GLint) v[2]; + params[3] = (GLint) v[3]; + } + } + else { + params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname, + "glGetVertexAttribIiv"); + } +} + + +/** GL 3.0 */ +void GLAPIENTRY +_mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) { + const GLfloat *v = + get_current_attrib(ctx, index, "glGetVertexAttribIuiv"); + if (v != NULL) { + /* XXX we don't have true integer-valued vertex attribs yet */ + params[0] = (GLuint) v[0]; + params[1] = (GLuint) v[1]; + params[2] = (GLuint) v[2]; + params[3] = (GLuint) v[3]; + } + } + else { + params[0] = get_vertex_array_attrib(ctx, index, pname, + "glGetVertexAttribIuiv"); + } +} + + +void GLAPIENTRY +_mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)"); + return; + } + + if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)"); + return; + } + + ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib)); + + *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr; +} + + +void GLAPIENTRY +_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride, + GLsizei count, const GLvoid *ptr) +{ + (void) count; + _mesa_VertexPointer(size, type, stride, ptr); +} + + +void GLAPIENTRY +_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, + const GLvoid *ptr) +{ + (void) count; + _mesa_NormalPointer(type, stride, ptr); +} + + +void GLAPIENTRY +_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, + const GLvoid *ptr) +{ + (void) count; + _mesa_ColorPointer(size, type, stride, ptr); +} + + +void GLAPIENTRY +_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, + const GLvoid *ptr) +{ + (void) count; + _mesa_IndexPointer(type, stride, ptr); +} + + +void GLAPIENTRY +_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, + GLsizei count, const GLvoid *ptr) +{ + (void) count; + _mesa_TexCoordPointer(size, type, stride, ptr); +} + + +void GLAPIENTRY +_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr) +{ + (void) count; + _mesa_EdgeFlagPointer(stride, ptr); +} + + +void GLAPIENTRY +_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer) +{ + GET_CURRENT_CONTEXT(ctx); + GLboolean tflag, cflag, nflag; /* enable/disable flags */ + GLint tcomps, ccomps, vcomps; /* components per texcoord, color, vertex */ + GLenum ctype = 0; /* color type */ + GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */ + const GLint toffset = 0; /* always zero */ + GLint defstride; /* default stride */ + GLint c, f; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + f = sizeof(GLfloat); + c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f); + + if (stride < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" ); + return; + } + + switch (format) { + case GL_V2F: + tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE; + tcomps = 0; ccomps = 0; vcomps = 2; + voffset = 0; + defstride = 2*f; + break; + case GL_V3F: + tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE; + tcomps = 0; ccomps = 0; vcomps = 3; + voffset = 0; + defstride = 3*f; + break; + case GL_C4UB_V2F: + tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; + tcomps = 0; ccomps = 4; vcomps = 2; + ctype = GL_UNSIGNED_BYTE; + coffset = 0; + voffset = c; + defstride = c + 2*f; + break; + case GL_C4UB_V3F: + tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; + tcomps = 0; ccomps = 4; vcomps = 3; + ctype = GL_UNSIGNED_BYTE; + coffset = 0; + voffset = c; + defstride = c + 3*f; + break; + case GL_C3F_V3F: + tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE; + tcomps = 0; ccomps = 3; vcomps = 3; + ctype = GL_FLOAT; + coffset = 0; + voffset = 3*f; + defstride = 6*f; + break; + case GL_N3F_V3F: + tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_TRUE; + tcomps = 0; ccomps = 0; vcomps = 3; + noffset = 0; + voffset = 3*f; + defstride = 6*f; + break; + case GL_C4F_N3F_V3F: + tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_TRUE; + tcomps = 0; ccomps = 4; vcomps = 3; + ctype = GL_FLOAT; + coffset = 0; + noffset = 4*f; + voffset = 7*f; + defstride = 10*f; + break; + case GL_T2F_V3F: + tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE; + tcomps = 2; ccomps = 0; vcomps = 3; + voffset = 2*f; + defstride = 5*f; + break; + case GL_T4F_V4F: + tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE; + tcomps = 4; ccomps = 0; vcomps = 4; + voffset = 4*f; + defstride = 8*f; + break; + case GL_T2F_C4UB_V3F: + tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE; + tcomps = 2; ccomps = 4; vcomps = 3; + ctype = GL_UNSIGNED_BYTE; + coffset = 2*f; + voffset = c+2*f; + defstride = c+5*f; + break; + case GL_T2F_C3F_V3F: + tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE; + tcomps = 2; ccomps = 3; vcomps = 3; + ctype = GL_FLOAT; + coffset = 2*f; + voffset = 5*f; + defstride = 8*f; + break; + case GL_T2F_N3F_V3F: + tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_TRUE; + tcomps = 2; ccomps = 0; vcomps = 3; + noffset = 2*f; + voffset = 5*f; + defstride = 8*f; + break; + case GL_T2F_C4F_N3F_V3F: + tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE; + tcomps = 2; ccomps = 4; vcomps = 3; + ctype = GL_FLOAT; + coffset = 2*f; + noffset = 6*f; + voffset = 9*f; + defstride = 12*f; + break; + case GL_T4F_C4F_N3F_V4F: + tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE; + tcomps = 4; ccomps = 4; vcomps = 4; + ctype = GL_FLOAT; + coffset = 4*f; + noffset = 8*f; + voffset = 11*f; + defstride = 15*f; + break; + default: + _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" ); + return; + } + + if (stride==0) { + stride = defstride; + } + + _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY ); + _mesa_DisableClientState( GL_INDEX_ARRAY ); + /* XXX also disable secondary color and generic arrays? */ + + /* Texcoords */ + if (tflag) { + _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY ); + _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride, + (GLubyte *) pointer + toffset ); + } + else { + _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY ); + } + + /* Color */ + if (cflag) { + _mesa_EnableClientState( GL_COLOR_ARRAY ); + _mesa_ColorPointer( ccomps, ctype, stride, + (GLubyte *) pointer + coffset ); + } + else { + _mesa_DisableClientState( GL_COLOR_ARRAY ); + } + + + /* Normals */ + if (nflag) { + _mesa_EnableClientState( GL_NORMAL_ARRAY ); + _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset ); + } + else { + _mesa_DisableClientState( GL_NORMAL_ARRAY ); + } + + /* Vertices */ + _mesa_EnableClientState( GL_VERTEX_ARRAY ); + _mesa_VertexPointer( vcomps, GL_FLOAT, stride, + (GLubyte *) pointer + voffset ); +} + + +void GLAPIENTRY +_mesa_LockArraysEXT(GLint first, GLsizei count) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glLockArrays %d %d\n", first, count); + + if (first < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" ); + return; + } + if (count <= 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" ); + return; + } + if (ctx->Array.LockCount != 0) { + _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" ); + return; + } + + ctx->Array.LockFirst = first; + ctx->Array.LockCount = count; + + ctx->NewState |= _NEW_ARRAY; + ctx->Array.NewState |= _NEW_ARRAY_ALL; +} + + +void GLAPIENTRY +_mesa_UnlockArraysEXT( void ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glUnlockArrays\n"); + + if (ctx->Array.LockCount == 0) { + _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" ); + return; + } + + ctx->Array.LockFirst = 0; + ctx->Array.LockCount = 0; + ctx->NewState |= _NEW_ARRAY; + ctx->Array.NewState |= _NEW_ARRAY_ALL; +} + + +/* GL_EXT_multi_draw_arrays */ +void GLAPIENTRY +_mesa_MultiDrawArraysEXT( GLenum mode, const GLint *first, + const GLsizei *count, GLsizei primcount ) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + for (i = 0; i < primcount; i++) { + if (count[i] > 0) { + CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i])); + } + } +} + + +/* GL_IBM_multimode_draw_arrays */ +void GLAPIENTRY +_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first, + const GLsizei * count, + GLsizei primcount, GLint modestride ) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + for ( i = 0 ; i < primcount ; i++ ) { + if ( count[i] > 0 ) { + GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); + CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] )); + } + } +} + + +/* GL_IBM_multimode_draw_arrays */ +void GLAPIENTRY +_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count, + GLenum type, const GLvoid * const * indices, + GLsizei primcount, GLint modestride ) +{ + GET_CURRENT_CONTEXT(ctx); + GLint i; + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + /* XXX not sure about ARB_vertex_buffer_object handling here */ + + for ( i = 0 ; i < primcount ; i++ ) { + if ( count[i] > 0 ) { + GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride)); + CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] )); + } + } +} + + +/** + * GL_NV_primitive_restart and GL 3.1 + */ +void GLAPIENTRY +_mesa_PrimitiveRestartIndex(GLuint index) +{ + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->Extensions.NV_primitive_restart && + ctx->VersionMajor * 10 + ctx->VersionMinor < 31) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()"); + return; + } + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, _NEW_TRANSFORM); + + ctx->Array.RestartIndex = index; +} + + +/** + * See GL_ARB_instanced_arrays. + * Note that the instance divisor only applies to generic arrays, not + * the legacy vertex arrays. + */ +void GLAPIENTRY +_mesa_VertexAttribDivisor(GLuint index, GLuint divisor) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (!ctx->Extensions.ARB_instanced_arrays) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()"); + return; + } + + if (index >= ctx->Const.VertexProgram.MaxAttribs) { + _mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)", + index); + return; + } + + ctx->Array.ArrayObj->VertexAttrib[index].InstanceDivisor = divisor; +} + + + +/** + * Copy one client vertex array to another. + */ +void +_mesa_copy_client_array(struct gl_context *ctx, + struct gl_client_array *dst, + struct gl_client_array *src) +{ + dst->Size = src->Size; + dst->Type = src->Type; + dst->Format = src->Format; + dst->Stride = src->Stride; + dst->StrideB = src->StrideB; + dst->Ptr = src->Ptr; + dst->Enabled = src->Enabled; + dst->Normalized = src->Normalized; + dst->Integer = src->Integer; + dst->InstanceDivisor = src->InstanceDivisor; + dst->_ElementSize = src->_ElementSize; + _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj); + dst->_MaxElement = src->_MaxElement; +} + + + +/** + * Print vertex array's fields. + */ +static void +print_array(const char *name, GLint index, const struct gl_client_array *array) +{ + if (index >= 0) + printf(" %s[%d]: ", name, index); + else + printf(" %s: ", name); + printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n", + array->Ptr, array->Type, array->Size, + array->_ElementSize, array->StrideB, + array->BufferObj->Name, (unsigned long) array->BufferObj->Size, + array->_MaxElement); +} + + +/** + * Print current vertex object/array info. For debug. + */ +void +_mesa_print_arrays(struct gl_context *ctx) +{ + struct gl_array_object *arrayObj = ctx->Array.ArrayObj; + GLuint i; + + _mesa_update_array_object_max_element(ctx, arrayObj); + + printf("Array Object %u\n", arrayObj->Name); + if (arrayObj->Vertex.Enabled) + print_array("Vertex", -1, &arrayObj->Vertex); + if (arrayObj->Normal.Enabled) + print_array("Normal", -1, &arrayObj->Normal); + if (arrayObj->Color.Enabled) + print_array("Color", -1, &arrayObj->Color); + for (i = 0; i < Elements(arrayObj->TexCoord); i++) + if (arrayObj->TexCoord[i].Enabled) + print_array("TexCoord", i, &arrayObj->TexCoord[i]); + for (i = 0; i < Elements(arrayObj->VertexAttrib); i++) + if (arrayObj->VertexAttrib[i].Enabled) + print_array("Attrib", i, &arrayObj->VertexAttrib[i]); + printf(" _MaxElement = %u\n", arrayObj->_MaxElement); +} + + +/** + * Initialize vertex array state for given context. + */ +void +_mesa_init_varray(struct gl_context *ctx) +{ + ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0); + _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, + ctx->Array.DefaultArrayObj); + ctx->Array.ActiveTexture = 0; /* GL_ARB_multitexture */ + + ctx->Array.Objects = _mesa_NewHashTable(); +} + + +/** + * Callback for deleting an array object. Called by _mesa_HashDeleteAll(). + */ +static void +delete_arrayobj_cb(GLuint id, void *data, void *userData) +{ + struct gl_array_object *arrayObj = (struct gl_array_object *) data; + struct gl_context *ctx = (struct gl_context *) userData; + _mesa_delete_array_object(ctx, arrayObj); +} + + +/** + * Free vertex array state for given context. + */ +void +_mesa_free_varray_data(struct gl_context *ctx) +{ + _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx); + _mesa_DeleteHashTable(ctx->Array.Objects); +} diff --git a/mesalib/src/mesa/program/register_allocate.c b/mesalib/src/mesa/program/register_allocate.c index 95a9bde40..e78db24a4 100644 --- a/mesalib/src/mesa/program/register_allocate.c +++ b/mesalib/src/mesa/program/register_allocate.c @@ -1,455 +1,517 @@ -/* - * Copyright © 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 (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. - * - * Authors: - * Eric Anholt - * - */ - -/** @file register_allocate.c - * - * Graph-coloring register allocator. - */ - -#include - -#include "main/imports.h" -#include "main/macros.h" -#include "main/mtypes.h" -#include "register_allocate.h" - -struct ra_reg { - GLboolean *conflicts; - unsigned int *conflict_list; - unsigned int conflict_list_size; - unsigned int num_conflicts; -}; - -struct ra_regs { - struct ra_reg *regs; - unsigned int count; - - struct ra_class **classes; - unsigned int class_count; -}; - -struct ra_class { - GLboolean *regs; - - /** - * p_B in Runeson/Nyström paper. - * - * This is "how many regs are in the set." - */ - unsigned int p; - - /** - * q_B,C in Runeson/Nyström paper. - */ - unsigned int *q; -}; - -struct ra_node { - GLboolean *adjacency; - unsigned int *adjacency_list; - unsigned int class; - unsigned int adjacency_count; - unsigned int reg; - GLboolean in_stack; - float spill_cost; -}; - -struct ra_graph { - struct ra_regs *regs; - /** - * the variables that need register allocation. - */ - struct ra_node *nodes; - unsigned int count; /**< count of nodes. */ - - unsigned int *stack; - unsigned int stack_count; -}; - -struct ra_regs * -ra_alloc_reg_set(unsigned int count) -{ - unsigned int i; - struct ra_regs *regs; - - regs = rzalloc(NULL, struct ra_regs); - regs->count = count; - regs->regs = rzalloc_array(regs, struct ra_reg, count); - - for (i = 0; i < count; i++) { - regs->regs[i].conflicts = rzalloc_array(regs->regs, GLboolean, count); - regs->regs[i].conflicts[i] = GL_TRUE; - - regs->regs[i].conflict_list = ralloc_array(regs->regs, unsigned int, 4); - regs->regs[i].conflict_list_size = 4; - regs->regs[i].conflict_list[0] = i; - regs->regs[i].num_conflicts = 1; - } - - return regs; -} - -static void -ra_add_conflict_list(struct ra_regs *regs, unsigned int r1, unsigned int r2) -{ - struct ra_reg *reg1 = ®s->regs[r1]; - - if (reg1->conflict_list_size == reg1->num_conflicts) { - reg1->conflict_list_size *= 2; - reg1->conflict_list = reralloc(regs->regs, reg1->conflict_list, - unsigned int, reg1->conflict_list_size); - } - reg1->conflict_list[reg1->num_conflicts++] = r2; - reg1->conflicts[r2] = GL_TRUE; -} - -void -ra_add_reg_conflict(struct ra_regs *regs, unsigned int r1, unsigned int r2) -{ - if (!regs->regs[r1].conflicts[r2]) { - ra_add_conflict_list(regs, r1, r2); - ra_add_conflict_list(regs, r2, r1); - } -} - -unsigned int -ra_alloc_reg_class(struct ra_regs *regs) -{ - struct ra_class *class; - - regs->classes = reralloc(regs->regs, regs->classes, struct ra_class *, - regs->class_count + 1); - - class = rzalloc(regs, struct ra_class); - regs->classes[regs->class_count] = class; - - class->regs = rzalloc_array(class, GLboolean, regs->count); - - return regs->class_count++; -} - -void -ra_class_add_reg(struct ra_regs *regs, unsigned int c, unsigned int r) -{ - struct ra_class *class = regs->classes[c]; - - class->regs[r] = GL_TRUE; - class->p++; -} - -/** - * Must be called after all conflicts and register classes have been - * set up and before the register set is used for allocation. - */ -void -ra_set_finalize(struct ra_regs *regs) -{ - unsigned int b, c; - - for (b = 0; b < regs->class_count; b++) { - regs->classes[b]->q = ralloc_array(regs, unsigned int, regs->class_count); - } - - /* Compute, for each class B and C, how many regs of B an - * allocation to C could conflict with. - */ - for (b = 0; b < regs->class_count; b++) { - for (c = 0; c < regs->class_count; c++) { - unsigned int rc; - int max_conflicts = 0; - - for (rc = 0; rc < regs->count; rc++) { - int conflicts = 0; - int i; - - if (!regs->classes[c]->regs[rc]) - continue; - - for (i = 0; i < regs->regs[rc].num_conflicts; i++) { - unsigned int rb = regs->regs[rc].conflict_list[i]; - if (regs->classes[b]->regs[rb]) - conflicts++; - } - max_conflicts = MAX2(max_conflicts, conflicts); - } - regs->classes[b]->q[c] = max_conflicts; - } - } -} - -static void -ra_add_node_adjacency(struct ra_graph *g, unsigned int n1, unsigned int n2) -{ - g->nodes[n1].adjacency[n2] = GL_TRUE; - g->nodes[n1].adjacency_list[g->nodes[n1].adjacency_count] = n2; - g->nodes[n1].adjacency_count++; -} - -struct ra_graph * -ra_alloc_interference_graph(struct ra_regs *regs, unsigned int count) -{ - struct ra_graph *g; - unsigned int i; - - g = rzalloc(regs, struct ra_graph); - g->regs = regs; - g->nodes = rzalloc_array(g, struct ra_node, count); - g->count = count; - - g->stack = rzalloc_array(g, unsigned int, count); - - for (i = 0; i < count; i++) { - g->nodes[i].adjacency = rzalloc_array(g, GLboolean, count); - g->nodes[i].adjacency_list = ralloc_array(g, unsigned int, count); - g->nodes[i].adjacency_count = 0; - ra_add_node_adjacency(g, i, i); - g->nodes[i].reg = ~0; - } - - return g; -} - -void -ra_set_node_class(struct ra_graph *g, - unsigned int n, unsigned int class) -{ - g->nodes[n].class = class; -} - -void -ra_add_node_interference(struct ra_graph *g, - unsigned int n1, unsigned int n2) -{ - if (!g->nodes[n1].adjacency[n2]) { - ra_add_node_adjacency(g, n1, n2); - ra_add_node_adjacency(g, n2, n1); - } -} - -static GLboolean pq_test(struct ra_graph *g, unsigned int n) -{ - unsigned int j; - unsigned int q = 0; - int n_class = g->nodes[n].class; - - for (j = 0; j < g->nodes[n].adjacency_count; j++) { - unsigned int n2 = g->nodes[n].adjacency_list[j]; - unsigned int n2_class = g->nodes[n2].class; - - if (n != n2 && !g->nodes[n2].in_stack) { - q += g->regs->classes[n_class]->q[n2_class]; - } - } - - return q < g->regs->classes[n_class]->p; -} - -/** - * Simplifies the interference graph by pushing all - * trivially-colorable nodes into a stack of nodes to be colored, - * removing them from the graph, and rinsing and repeating. - * - * Returns GL_TRUE if all nodes were removed from the graph. GL_FALSE - * means that either spilling will be required, or optimistic coloring - * should be applied. - */ -GLboolean -ra_simplify(struct ra_graph *g) -{ - GLboolean progress = GL_TRUE; - int i; - - while (progress) { - progress = GL_FALSE; - - for (i = g->count - 1; i >= 0; i--) { - if (g->nodes[i].in_stack) - continue; - - if (pq_test(g, i)) { - g->stack[g->stack_count] = i; - g->stack_count++; - g->nodes[i].in_stack = GL_TRUE; - progress = GL_TRUE; - } - } - } - - for (i = 0; i < g->count; i++) { - if (!g->nodes[i].in_stack) - return GL_FALSE; - } - - return GL_TRUE; -} - -/** - * Pops nodes from the stack back into the graph, coloring them with - * registers as they go. - * - * If all nodes were trivially colorable, then this must succeed. If - * not (optimistic coloring), then it may return GL_FALSE; - */ -GLboolean -ra_select(struct ra_graph *g) -{ - int i; - - while (g->stack_count != 0) { - unsigned int r; - int n = g->stack[g->stack_count - 1]; - struct ra_class *c = g->regs->classes[g->nodes[n].class]; - - /* Find the lowest-numbered reg which is not used by a member - * of the graph adjacent to us. - */ - for (r = 0; r < g->regs->count; r++) { - if (!c->regs[r]) - continue; - - /* Check if any of our neighbors conflict with this register choice. */ - for (i = 0; i < g->nodes[n].adjacency_count; i++) { - unsigned int n2 = g->nodes[n].adjacency_list[i]; - - if (!g->nodes[n2].in_stack && - g->regs->regs[r].conflicts[g->nodes[n2].reg]) { - break; - } - } - if (i == g->nodes[n].adjacency_count) - break; - } - if (r == g->regs->count) - return GL_FALSE; - - g->nodes[n].reg = r; - g->nodes[n].in_stack = GL_FALSE; - g->stack_count--; - } - - return GL_TRUE; -} - -/** - * Optimistic register coloring: Just push the remaining nodes - * on the stack. They'll be colored first in ra_select(), and - * if they succeed then the locally-colorable nodes are still - * locally-colorable and the rest of the register allocation - * will succeed. - */ -void -ra_optimistic_color(struct ra_graph *g) -{ - unsigned int i; - - for (i = 0; i < g->count; i++) { - if (g->nodes[i].in_stack) - continue; - - g->stack[g->stack_count] = i; - g->stack_count++; - g->nodes[i].in_stack = GL_TRUE; - } -} - -GLboolean -ra_allocate_no_spills(struct ra_graph *g) -{ - if (!ra_simplify(g)) { - ra_optimistic_color(g); - } - return ra_select(g); -} - -unsigned int -ra_get_node_reg(struct ra_graph *g, unsigned int n) -{ - return g->nodes[n].reg; -} - -static float -ra_get_spill_benefit(struct ra_graph *g, unsigned int n) -{ - int j; - float benefit = 0; - int n_class = g->nodes[n].class; - - /* Define the benefit of eliminating an interference between n, n2 - * through spilling as q(C, B) / p(C). This is similar to the - * "count number of edges" approach of traditional graph coloring, - * but takes classes into account. - */ - for (j = 0; j < g->nodes[n].adjacency_count; j++) { - unsigned int n2 = g->nodes[n].adjacency_list[j]; - if (n != n2) { - unsigned int n2_class = g->nodes[n2].class; - benefit += ((float)g->regs->classes[n_class]->q[n2_class] / - g->regs->classes[n_class]->p); - } - } - - return benefit; -} - -/** - * Returns a node number to be spilled according to the cost/benefit using - * the pq test, or -1 if there are no spillable nodes. - */ -int -ra_get_best_spill_node(struct ra_graph *g) -{ - unsigned int best_node = -1; - unsigned int best_benefit = 0.0; - unsigned int n; - - for (n = 0; n < g->count; n++) { - float cost = g->nodes[n].spill_cost; - float benefit; - - if (cost <= 0.0) - continue; - - benefit = ra_get_spill_benefit(g, n); - - if (benefit / cost > best_benefit) { - best_benefit = benefit / cost; - best_node = n; - } - } - - return best_node; -} - -/** - * Only nodes with a spill cost set (cost != 0.0) will be considered - * for register spilling. - */ -void -ra_set_node_spill_cost(struct ra_graph *g, unsigned int n, float cost) -{ - g->nodes[n].spill_cost = cost; -} +/* + * Copyright © 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 (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. + * + * Authors: + * Eric Anholt + * + */ + +/** @file register_allocate.c + * + * Graph-coloring register allocator. + * + * The basic idea of graph coloring is to make a node in a graph for + * every thing that needs a register (color) number assigned, and make + * edges in the graph between nodes that interfere (can't be allocated + * to the same register at the same time). + * + * During the "simplify" process, any any node with fewer edges than + * there are registers means that that edge can get assigned a + * register regardless of what its neighbors choose, so that node is + * pushed on a stack and removed (with its edges) from the graph. + * That likely causes other nodes to become trivially colorable as well. + * + * Then during the "select" process, nodes are popped off of that + * stack, their edges restored, and assigned a color different from + * their neighbors. Because they were pushed on the stack only when + * they were trivially colorable, any color chosen won't interfere + * with the registers to be popped later. + * + * The downside to most graph coloring is that real hardware often has + * limitations, like registers that need to be allocated to a node in + * pairs, or aligned on some boundary. This implementation follows + * the paper "Retargetable Graph-Coloring Register Allocation for + * Irregular Architectures" by Johan Runeson and Sven-Olof Nyström. + * + * In this system, there are register classes each containing various + * registers, and registers may interfere with other registers. For + * example, one might have a class of base registers, and a class of + * aligned register pairs that would each interfere with their pair of + * the base registers. Each node has a register class it needs to be + * assigned to. Define p(B) to be the size of register class B, and + * q(B,C) to be the number of registers in B that the worst choice + * register in C could conflict with. Then, this system replaces the + * basic graph coloring test of "fewer edges from this node than there + * are registers" with "For this node of class B, the sum of q(B,C) + * for each neighbor node of class C is less than pB". + * + * A nice feature of the pq test is that q(B,C) can be computed once + * up front and stored in a 2-dimensional array, so that the cost of + * coloring a node is constant with the number of registers. We do + * this during ra_set_finalize(). + */ + +#include + +#include "main/imports.h" +#include "main/macros.h" +#include "main/mtypes.h" +#include "register_allocate.h" + +struct ra_reg { + GLboolean *conflicts; + unsigned int *conflict_list; + unsigned int conflict_list_size; + unsigned int num_conflicts; +}; + +struct ra_regs { + struct ra_reg *regs; + unsigned int count; + + struct ra_class **classes; + unsigned int class_count; +}; + +struct ra_class { + GLboolean *regs; + + /** + * p(B) in Runeson/Nyström paper. + * + * This is "how many regs are in the set." + */ + unsigned int p; + + /** + * q(B,C) (indexed by C, B is this register class) in + * Runeson/Nyström paper. This is "how many registers of B could + * the worst choice register from C conflict with". + */ + unsigned int *q; +}; + +struct ra_node { + /** @{ + * + * List of which nodes this node interferes with. This should be + * symmetric with the other node. + */ + GLboolean *adjacency; + unsigned int *adjacency_list; + unsigned int adjacency_count; + /** @} */ + + unsigned int class; + + /* Register, if assigned, or ~0. */ + unsigned int reg; + + /** + * Set when the node is in the trivially colorable stack. When + * set, the adjacency to this node is ignored, to implement the + * "remove the edge from the graph" in simplification without + * having to actually modify the adjacency_list. + */ + GLboolean in_stack; + + /* For an implementation that needs register spilling, this is the + * approximate cost of spilling this node. + */ + float spill_cost; +}; + +struct ra_graph { + struct ra_regs *regs; + /** + * the variables that need register allocation. + */ + struct ra_node *nodes; + unsigned int count; /**< count of nodes. */ + + unsigned int *stack; + unsigned int stack_count; +}; + +struct ra_regs * +ra_alloc_reg_set(unsigned int count) +{ + unsigned int i; + struct ra_regs *regs; + + regs = rzalloc(NULL, struct ra_regs); + regs->count = count; + regs->regs = rzalloc_array(regs, struct ra_reg, count); + + for (i = 0; i < count; i++) { + regs->regs[i].conflicts = rzalloc_array(regs->regs, GLboolean, count); + regs->regs[i].conflicts[i] = GL_TRUE; + + regs->regs[i].conflict_list = ralloc_array(regs->regs, unsigned int, 4); + regs->regs[i].conflict_list_size = 4; + regs->regs[i].conflict_list[0] = i; + regs->regs[i].num_conflicts = 1; + } + + return regs; +} + +static void +ra_add_conflict_list(struct ra_regs *regs, unsigned int r1, unsigned int r2) +{ + struct ra_reg *reg1 = ®s->regs[r1]; + + if (reg1->conflict_list_size == reg1->num_conflicts) { + reg1->conflict_list_size *= 2; + reg1->conflict_list = reralloc(regs->regs, reg1->conflict_list, + unsigned int, reg1->conflict_list_size); + } + reg1->conflict_list[reg1->num_conflicts++] = r2; + reg1->conflicts[r2] = GL_TRUE; +} + +void +ra_add_reg_conflict(struct ra_regs *regs, unsigned int r1, unsigned int r2) +{ + if (!regs->regs[r1].conflicts[r2]) { + ra_add_conflict_list(regs, r1, r2); + ra_add_conflict_list(regs, r2, r1); + } +} + +unsigned int +ra_alloc_reg_class(struct ra_regs *regs) +{ + struct ra_class *class; + + regs->classes = reralloc(regs->regs, regs->classes, struct ra_class *, + regs->class_count + 1); + + class = rzalloc(regs, struct ra_class); + regs->classes[regs->class_count] = class; + + class->regs = rzalloc_array(class, GLboolean, regs->count); + + return regs->class_count++; +} + +void +ra_class_add_reg(struct ra_regs *regs, unsigned int c, unsigned int r) +{ + struct ra_class *class = regs->classes[c]; + + class->regs[r] = GL_TRUE; + class->p++; +} + +/** + * Must be called after all conflicts and register classes have been + * set up and before the register set is used for allocation. + */ +void +ra_set_finalize(struct ra_regs *regs) +{ + unsigned int b, c; + + for (b = 0; b < regs->class_count; b++) { + regs->classes[b]->q = ralloc_array(regs, unsigned int, regs->class_count); + } + + /* Compute, for each class B and C, how many regs of B an + * allocation to C could conflict with. + */ + for (b = 0; b < regs->class_count; b++) { + for (c = 0; c < regs->class_count; c++) { + unsigned int rc; + int max_conflicts = 0; + + for (rc = 0; rc < regs->count; rc++) { + int conflicts = 0; + int i; + + if (!regs->classes[c]->regs[rc]) + continue; + + for (i = 0; i < regs->regs[rc].num_conflicts; i++) { + unsigned int rb = regs->regs[rc].conflict_list[i]; + if (regs->classes[b]->regs[rb]) + conflicts++; + } + max_conflicts = MAX2(max_conflicts, conflicts); + } + regs->classes[b]->q[c] = max_conflicts; + } + } +} + +static void +ra_add_node_adjacency(struct ra_graph *g, unsigned int n1, unsigned int n2) +{ + g->nodes[n1].adjacency[n2] = GL_TRUE; + g->nodes[n1].adjacency_list[g->nodes[n1].adjacency_count] = n2; + g->nodes[n1].adjacency_count++; +} + +struct ra_graph * +ra_alloc_interference_graph(struct ra_regs *regs, unsigned int count) +{ + struct ra_graph *g; + unsigned int i; + + g = rzalloc(regs, struct ra_graph); + g->regs = regs; + g->nodes = rzalloc_array(g, struct ra_node, count); + g->count = count; + + g->stack = rzalloc_array(g, unsigned int, count); + + for (i = 0; i < count; i++) { + g->nodes[i].adjacency = rzalloc_array(g, GLboolean, count); + g->nodes[i].adjacency_list = ralloc_array(g, unsigned int, count); + g->nodes[i].adjacency_count = 0; + ra_add_node_adjacency(g, i, i); + g->nodes[i].reg = ~0; + } + + return g; +} + +void +ra_set_node_class(struct ra_graph *g, + unsigned int n, unsigned int class) +{ + g->nodes[n].class = class; +} + +void +ra_add_node_interference(struct ra_graph *g, + unsigned int n1, unsigned int n2) +{ + if (!g->nodes[n1].adjacency[n2]) { + ra_add_node_adjacency(g, n1, n2); + ra_add_node_adjacency(g, n2, n1); + } +} + +static GLboolean pq_test(struct ra_graph *g, unsigned int n) +{ + unsigned int j; + unsigned int q = 0; + int n_class = g->nodes[n].class; + + for (j = 0; j < g->nodes[n].adjacency_count; j++) { + unsigned int n2 = g->nodes[n].adjacency_list[j]; + unsigned int n2_class = g->nodes[n2].class; + + if (n != n2 && !g->nodes[n2].in_stack) { + q += g->regs->classes[n_class]->q[n2_class]; + } + } + + return q < g->regs->classes[n_class]->p; +} + +/** + * Simplifies the interference graph by pushing all + * trivially-colorable nodes into a stack of nodes to be colored, + * removing them from the graph, and rinsing and repeating. + * + * Returns GL_TRUE if all nodes were removed from the graph. GL_FALSE + * means that either spilling will be required, or optimistic coloring + * should be applied. + */ +GLboolean +ra_simplify(struct ra_graph *g) +{ + GLboolean progress = GL_TRUE; + int i; + + while (progress) { + progress = GL_FALSE; + + for (i = g->count - 1; i >= 0; i--) { + if (g->nodes[i].in_stack) + continue; + + if (pq_test(g, i)) { + g->stack[g->stack_count] = i; + g->stack_count++; + g->nodes[i].in_stack = GL_TRUE; + progress = GL_TRUE; + } + } + } + + for (i = 0; i < g->count; i++) { + if (!g->nodes[i].in_stack) + return GL_FALSE; + } + + return GL_TRUE; +} + +/** + * Pops nodes from the stack back into the graph, coloring them with + * registers as they go. + * + * If all nodes were trivially colorable, then this must succeed. If + * not (optimistic coloring), then it may return GL_FALSE; + */ +GLboolean +ra_select(struct ra_graph *g) +{ + int i; + + while (g->stack_count != 0) { + unsigned int r; + int n = g->stack[g->stack_count - 1]; + struct ra_class *c = g->regs->classes[g->nodes[n].class]; + + /* Find the lowest-numbered reg which is not used by a member + * of the graph adjacent to us. + */ + for (r = 0; r < g->regs->count; r++) { + if (!c->regs[r]) + continue; + + /* Check if any of our neighbors conflict with this register choice. */ + for (i = 0; i < g->nodes[n].adjacency_count; i++) { + unsigned int n2 = g->nodes[n].adjacency_list[i]; + + if (!g->nodes[n2].in_stack && + g->regs->regs[r].conflicts[g->nodes[n2].reg]) { + break; + } + } + if (i == g->nodes[n].adjacency_count) + break; + } + if (r == g->regs->count) + return GL_FALSE; + + g->nodes[n].reg = r; + g->nodes[n].in_stack = GL_FALSE; + g->stack_count--; + } + + return GL_TRUE; +} + +/** + * Optimistic register coloring: Just push the remaining nodes + * on the stack. They'll be colored first in ra_select(), and + * if they succeed then the locally-colorable nodes are still + * locally-colorable and the rest of the register allocation + * will succeed. + */ +void +ra_optimistic_color(struct ra_graph *g) +{ + unsigned int i; + + for (i = 0; i < g->count; i++) { + if (g->nodes[i].in_stack) + continue; + + g->stack[g->stack_count] = i; + g->stack_count++; + g->nodes[i].in_stack = GL_TRUE; + } +} + +GLboolean +ra_allocate_no_spills(struct ra_graph *g) +{ + if (!ra_simplify(g)) { + ra_optimistic_color(g); + } + return ra_select(g); +} + +unsigned int +ra_get_node_reg(struct ra_graph *g, unsigned int n) +{ + return g->nodes[n].reg; +} + +static float +ra_get_spill_benefit(struct ra_graph *g, unsigned int n) +{ + int j; + float benefit = 0; + int n_class = g->nodes[n].class; + + /* Define the benefit of eliminating an interference between n, n2 + * through spilling as q(C, B) / p(C). This is similar to the + * "count number of edges" approach of traditional graph coloring, + * but takes classes into account. + */ + for (j = 0; j < g->nodes[n].adjacency_count; j++) { + unsigned int n2 = g->nodes[n].adjacency_list[j]; + if (n != n2) { + unsigned int n2_class = g->nodes[n2].class; + benefit += ((float)g->regs->classes[n_class]->q[n2_class] / + g->regs->classes[n_class]->p); + } + } + + return benefit; +} + +/** + * Returns a node number to be spilled according to the cost/benefit using + * the pq test, or -1 if there are no spillable nodes. + */ +int +ra_get_best_spill_node(struct ra_graph *g) +{ + unsigned int best_node = -1; + unsigned int best_benefit = 0.0; + unsigned int n; + + for (n = 0; n < g->count; n++) { + float cost = g->nodes[n].spill_cost; + float benefit; + + if (cost <= 0.0) + continue; + + benefit = ra_get_spill_benefit(g, n); + + if (benefit / cost > best_benefit) { + best_benefit = benefit / cost; + best_node = n; + } + } + + return best_node; +} + +/** + * Only nodes with a spill cost set (cost != 0.0) will be considered + * for register spilling. + */ +void +ra_set_node_spill_cost(struct ra_graph *g, unsigned int n, float cost) +{ + g->nodes[n].spill_cost = cost; +} diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c index 1707f827c..9cc40c3d9 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c @@ -1,1535 +1,1543 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 - */ - -#include "main/imports.h" -#include "main/image.h" -#include "main/bufferobj.h" -#include "main/macros.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" -#include "main/pack.h" -#include "main/pbo.h" -#include "main/texformat.h" -#include "main/texstore.h" -#include "program/program.h" -#include "program/prog_print.h" -#include "program/prog_instruction.h" - -#include "st_atom.h" -#include "st_atom_constbuf.h" -#include "st_cb_drawpixels.h" -#include "st_cb_readpixels.h" -#include "st_cb_fbo.h" -#include "st_context.h" -#include "st_debug.h" -#include "st_format.h" -#include "st_program.h" -#include "st_texture.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "tgsi/tgsi_ureg.h" -#include "util/u_draw_quad.h" -#include "util/u_format.h" -#include "util/u_inlines.h" -#include "util/u_math.h" -#include "util/u_tile.h" -#include "cso_cache/cso_context.h" - - -#if FEATURE_drawpix - -/** - * Check if the given program is: - * 0: MOVE result.color, fragment.color; - * 1: END; - */ -static GLboolean -is_passthrough_program(const struct gl_fragment_program *prog) -{ - if (prog->Base.NumInstructions == 2) { - const struct prog_instruction *inst = prog->Base.Instructions; - if (inst[0].Opcode == OPCODE_MOV && - inst[1].Opcode == OPCODE_END && - inst[0].DstReg.File == PROGRAM_OUTPUT && - inst[0].DstReg.Index == FRAG_RESULT_COLOR && - inst[0].DstReg.WriteMask == WRITEMASK_XYZW && - inst[0].SrcReg[0].File == PROGRAM_INPUT && - inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 && - inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) { - return GL_TRUE; - } - } - return GL_FALSE; -} - - - -/** - * Make fragment shader for glDraw/CopyPixels. This shader is made - * by combining the pixel transfer shader with the user-defined shader. - * \param fpIn the current/incoming fragment program - * \param fpOut returns the combined fragment program - */ -void -st_make_drawpix_fragment_program(struct st_context *st, - struct gl_fragment_program *fpIn, - struct gl_fragment_program **fpOut) -{ - struct gl_program *newProg; - - if (is_passthrough_program(fpIn)) { - newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx, - &st->pixel_xfer.program->Base); - } - else { -#if 0 - /* debug */ - printf("Base program:\n"); - _mesa_print_program(&fpIn->Base); - printf("DrawPix program:\n"); - _mesa_print_program(&st->pixel_xfer.program->Base.Base); -#endif - newProg = _mesa_combine_programs(st->ctx, - &st->pixel_xfer.program->Base.Base, - &fpIn->Base); - } - -#if 0 - /* debug */ - printf("Combined DrawPixels program:\n"); - _mesa_print_program(newProg); - printf("InputsRead: 0x%x\n", newProg->InputsRead); - printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); - _mesa_print_parameter_list(newProg->Parameters); -#endif - - *fpOut = (struct gl_fragment_program *) newProg; -} - - -/** - * Create fragment program that does a TEX() instruction to get a Z and/or - * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL. - * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX). - * Pass fragment color through as-is. - * \return pointer to the gl_fragment program - */ -struct gl_fragment_program * -st_make_drawpix_z_stencil_program(struct st_context *st, - GLboolean write_depth, - GLboolean write_stencil) -{ - struct gl_context *ctx = st->ctx; - struct gl_program *p; - struct gl_fragment_program *fp; - GLuint ic = 0; - const GLuint shaderIndex = write_depth * 2 + write_stencil; - - assert(shaderIndex < Elements(st->drawpix.shaders)); - - if (st->drawpix.shaders[shaderIndex]) { - /* already have the proper shader */ - return st->drawpix.shaders[shaderIndex]; - } - - /* - * Create shader now - */ - p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); - if (!p) - return NULL; - - p->NumInstructions = write_depth ? 2 : 1; - p->NumInstructions += write_stencil ? 1 : 0; - - p->Instructions = _mesa_alloc_instructions(p->NumInstructions); - if (!p->Instructions) { - ctx->Driver.DeleteProgram(ctx, p); - return NULL; - } - _mesa_init_instructions(p->Instructions, p->NumInstructions); - - if (write_depth) { - /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */ - p->Instructions[ic].Opcode = OPCODE_TEX; - p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; - p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH; - p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z; - p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; - p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; - p->Instructions[ic].TexSrcUnit = 0; - p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; - ic++; - } - - if (write_stencil) { - /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */ - p->Instructions[ic].Opcode = OPCODE_TEX; - p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; - p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL; - p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y; - p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; - p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; - p->Instructions[ic].TexSrcUnit = 1; - p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; - ic++; - } - - /* END; */ - p->Instructions[ic++].Opcode = OPCODE_END; - - assert(ic == p->NumInstructions); - - p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0; - p->OutputsWritten = 0; - if (write_depth) - p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_DEPTH); - if (write_stencil) - p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_STENCIL); - - p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */ - if (write_stencil) - p->SamplersUsed |= 1 << 1; - - fp = (struct gl_fragment_program *) p; - - /* save the new shader */ - st->drawpix.shaders[shaderIndex] = fp; - - return fp; -} - - -/** - * Create a simple vertex shader that just passes through the - * vertex position and texcoord (and optionally, color). - */ -static void * -make_passthrough_vertex_shader(struct st_context *st, - GLboolean passColor) -{ - if (!st->drawpix.vert_shaders[passColor]) { - struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); - - if (ureg == NULL) - return NULL; - - /* MOV result.pos, vertex.pos; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ), - ureg_DECL_vs_input( ureg, 0 )); - - /* MOV result.texcoord0, vertex.attr[1]; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ), - ureg_DECL_vs_input( ureg, 1 )); - - if (passColor) { - /* MOV result.color0, vertex.attr[2]; */ - ureg_MOV(ureg, - ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ), - ureg_DECL_vs_input( ureg, 2 )); - } - - ureg_END( ureg ); - - st->drawpix.vert_shaders[passColor] = - ureg_create_shader_and_destroy( ureg, st->pipe ); - } - - return st->drawpix.vert_shaders[passColor]; -} - - -/** - * Return a texture base format for drawing/copying an image - * of the given format. - */ -static GLenum -base_format(GLenum format) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL: - return GL_DEPTH_STENCIL; - case GL_STENCIL_INDEX: - return GL_STENCIL_INDEX; - default: - return GL_RGBA; - } -} - - -/** - * Return a texture internalFormat for drawing/copying an image - * of the given format and type. - */ -static GLenum -internal_format(struct gl_context *ctx, GLenum format, GLenum type) -{ - switch (format) { - case GL_DEPTH_COMPONENT: - return GL_DEPTH_COMPONENT; - case GL_DEPTH_STENCIL: - return GL_DEPTH_STENCIL; - case GL_STENCIL_INDEX: - return GL_STENCIL_INDEX; - default: - if (_mesa_is_integer_format(format)) { - switch (type) { - case GL_BYTE: - return GL_RGBA8I; - case GL_UNSIGNED_BYTE: - return GL_RGBA8UI; - case GL_SHORT: - return GL_RGBA16I; - case GL_UNSIGNED_SHORT: - return GL_RGBA16UI; - case GL_INT: - return GL_RGBA32I; - case GL_UNSIGNED_INT: - return GL_RGBA32UI; - default: - assert(0 && "Unexpected type in internal_format()"); - return GL_RGBA_INTEGER; - } - } - else { - switch (type) { - case GL_UNSIGNED_BYTE: - case GL_UNSIGNED_INT_8_8_8_8: - case GL_UNSIGNED_INT_8_8_8_8_REV: - default: - return GL_RGBA8; - - case GL_UNSIGNED_BYTE_3_3_2: - case GL_UNSIGNED_BYTE_2_3_3_REV: - case GL_UNSIGNED_SHORT_4_4_4_4: - case GL_UNSIGNED_SHORT_4_4_4_4_REV: - return GL_RGBA4; - - case GL_UNSIGNED_SHORT_5_6_5: - case GL_UNSIGNED_SHORT_5_6_5_REV: - case GL_UNSIGNED_SHORT_5_5_5_1: - case GL_UNSIGNED_SHORT_1_5_5_5_REV: - return GL_RGB5_A1; - - case GL_UNSIGNED_INT_10_10_10_2: - case GL_UNSIGNED_INT_2_10_10_10_REV: - return GL_RGB10_A2; - - case GL_UNSIGNED_SHORT: - case GL_UNSIGNED_INT: - return GL_RGBA16; - - case GL_BYTE: - return - ctx->Extensions.EXT_texture_snorm ? GL_RGBA8_SNORM : GL_RGBA8; - - case GL_SHORT: - case GL_INT: - return - ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; - - case GL_HALF_FLOAT_ARB: - return - ctx->Extensions.ARB_texture_float ? GL_RGBA16F : - ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; - - case GL_FLOAT: - case GL_DOUBLE: - return - ctx->Extensions.ARB_texture_float ? GL_RGBA32F : - ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; - } - } - } -} - - -/** - * Create a temporary texture to hold an image of the given size. - * If width, height are not POT and the driver only handles POT textures, - * allocate the next larger size of texture that is POT. - */ -static struct pipe_resource * -alloc_texture(struct st_context *st, GLsizei width, GLsizei height, - enum pipe_format texFormat) -{ - struct pipe_resource *pt; - - pt = st_texture_create(st, st->internal_target, texFormat, 0, - width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW); - - return pt; -} - - -/** - * Make texture containing an image for glDrawPixels image. - * If 'pixels' is NULL, leave the texture image data undefined. - */ -static struct pipe_resource * -make_texture(struct st_context *st, - GLsizei width, GLsizei height, GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct gl_context *ctx = st->ctx; - struct pipe_context *pipe = st->pipe; - gl_format mformat; - struct pipe_resource *pt; - enum pipe_format pipeFormat; - GLuint cpp; - GLenum baseFormat, intFormat; - - baseFormat = base_format(format); - intFormat = internal_format(ctx, format, type); - - mformat = st_ChooseTextureFormat_renderable(ctx, intFormat, - format, type, GL_FALSE); - assert(mformat); - - pipeFormat = st_mesa_format_to_pipe_format(mformat); - assert(pipeFormat); - cpp = util_format_get_blocksize(pipeFormat); - - pixels = _mesa_map_pbo_source(ctx, unpack, pixels); - if (!pixels) - return NULL; - - /* alloc temporary texture */ - pt = alloc_texture(st, width, height, pipeFormat); - if (!pt) { - _mesa_unmap_pbo_source(ctx, unpack); - return NULL; - } - - { - struct pipe_transfer *transfer; - static const GLuint dstImageOffsets = 0; - GLboolean success; - GLubyte *dest; - const GLbitfield imageTransferStateSave = ctx->_ImageTransferState; - - /* we'll do pixel transfer in a fragment shader */ - ctx->_ImageTransferState = 0x0; - - transfer = pipe_get_transfer(st->pipe, pt, 0, 0, - PIPE_TRANSFER_WRITE, 0, 0, - width, height); - - /* map texture transfer */ - dest = pipe_transfer_map(pipe, transfer); - - - /* Put image into texture transfer. - * Note that the image is actually going to be upside down in - * the texture. We deal with that with texcoords. - */ - success = _mesa_texstore(ctx, 2, /* dims */ - baseFormat, /* baseInternalFormat */ - mformat, /* gl_format */ - dest, /* dest */ - 0, 0, 0, /* dstX/Y/Zoffset */ - transfer->stride, /* dstRowStride, bytes */ - &dstImageOffsets, /* dstImageOffsets */ - width, height, 1, /* size */ - format, type, /* src format/type */ - pixels, /* data source */ - unpack); - - /* unmap */ - pipe_transfer_unmap(pipe, transfer); - pipe->transfer_destroy(pipe, transfer); - - assert(success); - - /* restore */ - ctx->_ImageTransferState = imageTransferStateSave; - } - - _mesa_unmap_pbo_source(ctx, unpack); - - return pt; -} - - -/** - * Draw quad with texcoords and optional color. - * Coords are gallium window coords with y=0=top. - * \param color may be null - * \param invertTex if true, flip texcoords vertically - */ -static void -draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z, - GLfloat x1, GLfloat y1, const GLfloat *color, - GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */ - - /* setup vertex data */ - { - const struct gl_framebuffer *fb = st->ctx->DrawBuffer; - const GLfloat fb_width = (GLfloat) fb->Width; - const GLfloat fb_height = (GLfloat) fb->Height; - const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f; - const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; - const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; - const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; - const GLfloat sLeft = 0.0f, sRight = maxXcoord; - const GLfloat tTop = invertTex ? maxYcoord : 0.0f; - const GLfloat tBot = invertTex ? 0.0f : maxYcoord; - GLuint i; - - /* upper-left */ - verts[0][0][0] = clip_x0; /* v[0].attr[0].x */ - verts[0][0][1] = clip_y0; /* v[0].attr[0].y */ - - /* upper-right */ - verts[1][0][0] = clip_x1; - verts[1][0][1] = clip_y0; - - /* lower-right */ - verts[2][0][0] = clip_x1; - verts[2][0][1] = clip_y1; - - /* lower-left */ - verts[3][0][0] = clip_x0; - verts[3][0][1] = clip_y1; - - verts[0][1][0] = sLeft; /* v[0].attr[1].S */ - verts[0][1][1] = tTop; /* v[0].attr[1].T */ - verts[1][1][0] = sRight; - verts[1][1][1] = tTop; - verts[2][1][0] = sRight; - verts[2][1][1] = tBot; - verts[3][1][0] = sLeft; - verts[3][1][1] = tBot; - - /* same for all verts: */ - if (color) { - for (i = 0; i < 4; i++) { - verts[i][0][2] = z; /* v[i].attr[0].z */ - verts[i][0][3] = 1.0f; /* v[i].attr[0].w */ - verts[i][2][0] = color[0]; /* v[i].attr[2].r */ - verts[i][2][1] = color[1]; /* v[i].attr[2].g */ - verts[i][2][2] = color[2]; /* v[i].attr[2].b */ - verts[i][2][3] = color[3]; /* v[i].attr[2].a */ - verts[i][1][2] = 0.0f; /* v[i].attr[1].R */ - verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */ - } - } - else { - for (i = 0; i < 4; i++) { - verts[i][0][2] = z; /*Z*/ - verts[i][0][3] = 1.0f; /*W*/ - verts[i][1][2] = 0.0f; /*R*/ - verts[i][1][3] = 1.0f; /*Q*/ - } - } - } - - { - struct pipe_resource *buf; - - /* allocate/load buffer object with vertex data */ - buf = pipe_buffer_create(pipe->screen, - PIPE_BIND_VERTEX_BUFFER, - PIPE_USAGE_STATIC, - sizeof(verts)); - pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts); - - util_draw_vertex_buffer(pipe, st->cso_context, buf, 0, - PIPE_PRIM_QUADS, - 4, /* verts */ - 3); /* attribs/vert */ - pipe_resource_reference(&buf, NULL); - } -} - - - -static void -draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, - GLsizei width, GLsizei height, - GLfloat zoomX, GLfloat zoomY, - struct pipe_sampler_view **sv, - int num_sampler_view, - void *driver_vp, - void *driver_fp, - const GLfloat *color, - GLboolean invertTex, - GLboolean write_depth, GLboolean write_stencil) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct cso_context *cso = st->cso_context; - GLfloat x0, y0, x1, y1; - GLsizei maxSize; - boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT; - - /* limit checks */ - /* XXX if DrawPixels image is larger than max texture size, break - * it up into chunks. - */ - maxSize = 1 << (pipe->screen->get_param(pipe->screen, - PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); - assert(width <= maxSize); - assert(height <= maxSize); - - cso_save_rasterizer(cso); - cso_save_viewport(cso); - cso_save_samplers(cso); - cso_save_fragment_sampler_views(cso); - cso_save_fragment_shader(cso); - cso_save_vertex_shader(cso); - cso_save_vertex_elements(cso); - cso_save_vertex_buffers(cso); - if (write_stencil) { - cso_save_depth_stencil_alpha(cso); - cso_save_blend(cso); - } - - /* rasterizer state: just scissor */ - { - struct pipe_rasterizer_state rasterizer; - memset(&rasterizer, 0, sizeof(rasterizer)); - rasterizer.clamp_fragment_color = ctx->Color._ClampFragmentColor; - rasterizer.gl_rasterization_rules = 1; - rasterizer.scissor = ctx->Scissor.Enabled; - cso_set_rasterizer(cso, &rasterizer); - } - - if (write_stencil) { - /* Stencil writing bypasses the normal fragment pipeline to - * disable color writing and set stencil test to always pass. - */ - struct pipe_depth_stencil_alpha_state dsa; - struct pipe_blend_state blend; - - /* depth/stencil */ - memset(&dsa, 0, sizeof(dsa)); - dsa.stencil[0].enabled = 1; - dsa.stencil[0].func = PIPE_FUNC_ALWAYS; - dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; - dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; - if (write_depth) { - /* writing depth+stencil: depth test always passes */ - dsa.depth.enabled = 1; - dsa.depth.writemask = ctx->Depth.Mask; - dsa.depth.func = PIPE_FUNC_ALWAYS; - } - cso_set_depth_stencil_alpha(cso, &dsa); - - /* blend (colormask) */ - memset(&blend, 0, sizeof(blend)); - cso_set_blend(cso, &blend); - } - - /* fragment shader state: TEX lookup program */ - cso_set_fragment_shader_handle(cso, driver_fp); - - /* vertex shader state: position + texcoord pass-through */ - cso_set_vertex_shader_handle(cso, driver_vp); - - - /* texture sampling state: */ - { - struct pipe_sampler_state sampler; - memset(&sampler, 0, sizeof(sampler)); - sampler.wrap_s = PIPE_TEX_WRAP_CLAMP; - sampler.wrap_t = PIPE_TEX_WRAP_CLAMP; - sampler.wrap_r = PIPE_TEX_WRAP_CLAMP; - sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; - sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; - sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; - sampler.normalized_coords = normalized; - - cso_single_sampler(cso, 0, &sampler); - if (num_sampler_view > 1) { - cso_single_sampler(cso, 1, &sampler); - } - cso_single_sampler_done(cso); - } - - /* viewport state: viewport matching window dims */ - { - const float w = (float) ctx->DrawBuffer->Width; - const float h = (float) ctx->DrawBuffer->Height; - struct pipe_viewport_state vp; - vp.scale[0] = 0.5f * w; - vp.scale[1] = -0.5f * h; - vp.scale[2] = 0.5f; - vp.scale[3] = 1.0f; - vp.translate[0] = 0.5f * w; - vp.translate[1] = 0.5f * h; - vp.translate[2] = 0.5f; - vp.translate[3] = 0.0f; - cso_set_viewport(cso, &vp); - } - - cso_set_vertex_elements(cso, 3, st->velems_util_draw); - - /* texture state: */ - cso_set_fragment_sampler_views(cso, num_sampler_view, sv); - - /* Compute Gallium window coords (y=0=top) with pixel zoom. - * Recall that these coords are transformed by the current - * vertex shader and viewport transformation. - */ - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) { - y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY); - invertTex = !invertTex; - } - - x0 = (GLfloat) x; - x1 = x + width * ctx->Pixel.ZoomX; - y0 = (GLfloat) y; - y1 = y + height * ctx->Pixel.ZoomY; - - /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ - z = z * 2.0 - 1.0; - - draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, - normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width, - normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height); - - /* restore state */ - cso_restore_rasterizer(cso); - cso_restore_viewport(cso); - cso_restore_samplers(cso); - cso_restore_fragment_sampler_views(cso); - cso_restore_fragment_shader(cso); - cso_restore_vertex_shader(cso); - cso_restore_vertex_elements(cso); - cso_restore_vertex_buffers(cso); - if (write_stencil) { - cso_restore_depth_stencil_alpha(cso); - cso_restore_blend(cso); - } -} - - -/** - * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we - * can't use a fragment shader to write stencil values. - */ -static void -draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, - const GLvoid *pixels) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct st_renderbuffer *strb; - enum pipe_transfer_usage usage; - struct pipe_transfer *pt; - const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; - GLint skipPixels; - ubyte *stmap; - struct gl_pixelstore_attrib clippedUnpack = *unpack; - - if (!zoom) { - if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, - &clippedUnpack)) { - /* totally clipped */ - return; - } - } - - strb = st_renderbuffer(ctx->DrawBuffer-> - Attachment[BUFFER_STENCIL].Renderbuffer); - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - y = ctx->DrawBuffer->Height - y - height; - } - - if(format != GL_DEPTH_STENCIL && - util_format_get_component_bits(strb->format, - UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) - usage = PIPE_TRANSFER_READ_WRITE; - else - usage = PIPE_TRANSFER_WRITE; - - pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0, - usage, x, y, - width, height); - - stmap = pipe_transfer_map(pipe, pt); - - pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels); - assert(pixels); - - /* if width > MAX_WIDTH, have to process image in chunks */ - skipPixels = 0; - while (skipPixels < width) { - const GLint spanX = skipPixels; - const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); - GLint row; - for (row = 0; row < height; row++) { - GLubyte sValues[MAX_WIDTH]; - GLuint zValues[MAX_WIDTH]; - GLenum destType = GL_UNSIGNED_BYTE; - const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels, - width, height, - format, type, - row, skipPixels); - _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues, - type, source, &clippedUnpack, - ctx->_ImageTransferState); - - if (format == GL_DEPTH_STENCIL) { - _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues, - (1 << 24) - 1, type, source, - &clippedUnpack); - } - - if (zoom) { - _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with " - "zoom not complete"); - } - - { - GLint spanY; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - spanY = height - row - 1; - } - else { - spanY = row; - } - - /* now pack the stencil (and Z) values in the dest format */ - switch (pt->resource->format) { - case PIPE_FORMAT_S8_USCALED: - { - ubyte *dest = stmap + spanY * pt->stride + spanX; - assert(usage == PIPE_TRANSFER_WRITE); - memcpy(dest, sValues, spanWidth); - } - break; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - if (format == GL_DEPTH_STENCIL) { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = zValues[k] | (sValues[k] << 24); - } - } - else { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24); - } - } - break; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - if (format == GL_DEPTH_STENCIL) { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff); - } - } - else { - uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); - GLint k; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (k = 0; k < spanWidth; k++) { - dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff); - } - } - break; - default: - assert(0); - } - } - } - skipPixels += spanWidth; - } - - _mesa_unmap_pbo_source(ctx, &clippedUnpack); - - /* unmap the stencil buffer */ - pipe_transfer_unmap(pipe, pt); - pipe->transfer_destroy(pipe, pt); -} - - -/** - * Get fragment program variant for a glDrawPixels or glCopyPixels - * command for RGBA data. - */ -static struct st_fp_variant * -get_color_fp_variant(struct st_context *st) -{ - struct gl_context *ctx = st->ctx; - struct st_fp_variant_key key; - struct st_fp_variant *fpv; - - memset(&key, 0, sizeof(key)); - - key.st = st; - key.drawpixels = 1; - key.scaleAndBias = (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); - key.pixelMaps = ctx->Pixel.MapColorFlag; - - fpv = st_get_fp_variant(st, st->fp, &key); - - return fpv; -} - - -/** - * Get fragment program variant for a glDrawPixels or glCopyPixels - * command for depth/stencil data. - */ -static struct st_fp_variant * -get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth, - GLboolean write_stencil) -{ - struct st_fp_variant_key key; - struct st_fp_variant *fpv; - - memset(&key, 0, sizeof(key)); - - key.st = st; - key.drawpixels = 1; - key.drawpixels_z = write_depth; - key.drawpixels_stencil = write_stencil; - - fpv = st_get_fp_variant(st, st->fp, &key); - - return fpv; -} - - -/** - * Called via ctx->Driver.DrawPixels() - */ -static void -st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height, - GLenum format, GLenum type, - const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) -{ - void *driver_vp, *driver_fp; - struct st_context *st = st_context(ctx); - const GLfloat *color; - struct pipe_context *pipe = st->pipe; - GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE; - struct pipe_sampler_view *sv[2]; - int num_sampler_view = 1; - enum pipe_format stencil_format = PIPE_FORMAT_NONE; - struct st_fp_variant *fpv; - - if (format == GL_DEPTH_STENCIL) - write_stencil = write_depth = GL_TRUE; - else if (format == GL_STENCIL_INDEX) - write_stencil = GL_TRUE; - else if (format == GL_DEPTH_COMPONENT) - write_depth = GL_TRUE; - - if (write_stencil) { - enum pipe_format tex_format; - /* can we write to stencil if not fallback */ - if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) - goto stencil_fallback; - - tex_format = st_choose_format(st->pipe->screen, base_format(format), - PIPE_TEXTURE_2D, - 0, PIPE_BIND_SAMPLER_VIEW); - if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) - stencil_format = PIPE_FORMAT_X24S8_USCALED; - else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM) - stencil_format = PIPE_FORMAT_S8X24_USCALED; - else - stencil_format = PIPE_FORMAT_S8_USCALED; - if (stencil_format == PIPE_FORMAT_NONE) - goto stencil_fallback; - } - - /* Mesa state should be up to date by now */ - assert(ctx->NewState == 0x0); - - st_validate_state(st); - - /* - * Get vertex/fragment shaders - */ - if (write_depth || write_stencil) { - fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil); - - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); - - color = ctx->Current.RasterColor; - } - else { - fpv = get_color_fp_variant(st); - - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); - - color = NULL; - if (st->pixel_xfer.pixelmap_enabled) { - sv[1] = st->pixel_xfer.pixelmap_sampler_view; - num_sampler_view++; - } - } - - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); - - /* draw with textured quad */ - { - struct pipe_resource *pt - = make_texture(st, width, height, format, type, unpack, pixels); - if (pt) { - sv[0] = st_create_texture_sampler_view(st->pipe, pt); - - if (sv[0]) { - if (write_stencil) { - sv[1] = st_create_texture_sampler_view_format(st->pipe, pt, - stencil_format); - num_sampler_view++; - } - - draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], - width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, - sv, - num_sampler_view, - driver_vp, - driver_fp, - color, GL_FALSE, write_depth, write_stencil); - pipe_sampler_view_reference(&sv[0], NULL); - if (num_sampler_view > 1) - pipe_sampler_view_reference(&sv[1], NULL); - } - pipe_resource_reference(&pt, NULL); - } - } - return; - -stencil_fallback: - draw_stencil_pixels(ctx, x, y, width, height, format, type, - unpack, pixels); -} - - - -/** - * Software fallback for glCopyPixels(GL_STENCIL). - */ -static void -copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty) -{ - struct st_renderbuffer *rbDraw; - struct pipe_context *pipe = st_context(ctx)->pipe; - enum pipe_transfer_usage usage; - struct pipe_transfer *ptDraw; - ubyte *drawMap; - ubyte *buffer; - int i; - - buffer = malloc(width * height * sizeof(ubyte)); - if (!buffer) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)"); - return; - } - - /* Get the dest renderbuffer. If there's a wrapper, use the - * underlying renderbuffer. - */ - rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer); - if (rbDraw->Base.Wrapped) - rbDraw = st_renderbuffer(rbDraw->Base.Wrapped); - - /* this will do stencil pixel transfer ops */ - st_read_stencil_pixels(ctx, srcx, srcy, width, height, - GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, - &ctx->DefaultPacking, buffer); - - if (0) { - /* debug code: dump stencil values */ - GLint row, col; - for (row = 0; row < height; row++) { - printf("%3d: ", row); - for (col = 0; col < width; col++) { - printf("%02x ", buffer[col + row * width]); - } - printf("\n"); - } - } - - if (util_format_get_component_bits(rbDraw->format, - UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) - usage = PIPE_TRANSFER_READ_WRITE; - else - usage = PIPE_TRANSFER_WRITE; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - dsty = rbDraw->Base.Height - dsty - height; - } - - ptDraw = pipe_get_transfer(st_context(ctx)->pipe, - rbDraw->texture, 0, 0, - usage, dstx, dsty, - width, height); - - assert(util_format_get_blockwidth(ptDraw->resource->format) == 1); - assert(util_format_get_blockheight(ptDraw->resource->format) == 1); - - /* map the stencil buffer */ - drawMap = pipe_transfer_map(pipe, ptDraw); - - /* draw */ - /* XXX PixelZoom not handled yet */ - for (i = 0; i < height; i++) { - ubyte *dst; - const ubyte *src; - int y; - - y = i; - - if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { - y = height - y - 1; - } - - dst = drawMap + y * ptDraw->stride; - src = buffer + i * width; - - switch (ptDraw->resource->format) { - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - { - uint *dst4 = (uint *) dst; - int j; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (j = 0; j < width; j++) { - *dst4 = (*dst4 & 0xffffff) | (src[j] << 24); - dst4++; - } - } - break; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - { - uint *dst4 = (uint *) dst; - int j; - assert(usage == PIPE_TRANSFER_READ_WRITE); - for (j = 0; j < width; j++) { - *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff); - dst4++; - } - } - break; - case PIPE_FORMAT_S8_USCALED: - assert(usage == PIPE_TRANSFER_WRITE); - memcpy(dst, src, width); - break; - default: - assert(0); - } - } - - free(buffer); - - /* unmap the stencil buffer */ - pipe_transfer_unmap(pipe, ptDraw); - pipe->transfer_destroy(pipe, ptDraw); -} - - -/** Do the src/dest regions overlap? */ -static GLboolean -regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY, - GLsizei width, GLsizei height) -{ - if (srcX + width <= dstX || - dstX + width <= srcX || - srcY + height <= dstY || - dstY + height <= srcY) - return GL_FALSE; - else - return GL_TRUE; -} - - -/** - * Try to do a glCopyPixels for simple cases with a blit by calling - * pipe->resource_copy_region(). - * - * We can do this when we're copying color pixels (depth/stencil - * eventually) with no pixel zoom, no pixel transfer ops, no - * per-fragment ops, the src/dest regions don't overlap and the - * src/dest pixel formats are the same. - */ -static GLboolean -blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty, GLenum type) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct gl_pixelstore_attrib pack, unpack; - GLint readX, readY, readW, readH; - - if (type == GL_COLOR && - ctx->Pixel.ZoomX == 1.0 && - ctx->Pixel.ZoomY == 1.0 && - ctx->_ImageTransferState == 0x0 && - !ctx->Color.BlendEnabled && - !ctx->Color.AlphaEnabled && - !ctx->Depth.Test && - !ctx->Fog.Enabled && - !ctx->Stencil.Enabled && - !ctx->FragmentProgram.Enabled && - !ctx->VertexProgram.Enabled && - !ctx->Shader.CurrentFragmentProgram && - st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) && - ctx->DrawBuffer->_NumColorDrawBuffers == 1) { - struct st_renderbuffer *rbRead, *rbDraw; - GLint drawX, drawY; - - /* - * Clip the read region against the src buffer bounds. - * We'll still allocate a temporary buffer/texture for the original - * src region size but we'll only read the region which is on-screen. - * This may mean that we draw garbage pixels into the dest region, but - * that's expected. - */ - readX = srcx; - readY = srcy; - readW = width; - readH = height; - pack = ctx->DefaultPacking; - if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack)) - return GL_TRUE; /* all done */ - - /* clip against dest buffer bounds and scissor box */ - drawX = dstx + pack.SkipPixels; - drawY = dsty + pack.SkipRows; - unpack = pack; - if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack)) - return GL_TRUE; /* all done */ - - readX = readX - pack.SkipPixels + unpack.SkipPixels; - readY = readY - pack.SkipRows + unpack.SkipRows; - - rbRead = st_get_color_read_renderbuffer(ctx); - rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]); - - if ((rbRead != rbDraw || - !regions_overlap(readX, readY, drawX, drawY, readW, readH)) && - rbRead->Base.Format == rbDraw->Base.Format) { - struct pipe_box srcBox; - - /* flip src/dst position if needed */ - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - /* both buffers will have the same orientation */ - readY = ctx->ReadBuffer->Height - readY - readH; - drawY = ctx->DrawBuffer->Height - drawY - readH; - } - - u_box_2d(readX, readY, readW, readH, &srcBox); - - pipe->resource_copy_region(pipe, - rbDraw->texture, 0, drawX, drawY, 0, - rbRead->texture, 0, &srcBox); - return GL_TRUE; - } - } - - return GL_FALSE; -} - - -static void -st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, - GLsizei width, GLsizei height, - GLint dstx, GLint dsty, GLenum type) -{ - struct st_context *st = st_context(ctx); - struct pipe_context *pipe = st->pipe; - struct pipe_screen *screen = pipe->screen; - struct st_renderbuffer *rbRead; - void *driver_vp, *driver_fp; - struct pipe_resource *pt; - struct pipe_sampler_view *sv[2]; - int num_sampler_view = 1; - GLfloat *color; - enum pipe_format srcFormat, texFormat; - GLboolean invertTex = GL_FALSE; - GLint readX, readY, readW, readH; - GLuint sample_count; - struct gl_pixelstore_attrib pack = ctx->DefaultPacking; - struct st_fp_variant *fpv; - - st_validate_state(st); - - if (type == GL_STENCIL) { - /* can't use texturing to do stencil */ - copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty); - return; - } - - if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type)) - return; - - /* - * The subsequent code implements glCopyPixels by copying the source - * pixels into a temporary texture that's then applied to a textured quad. - * When we draw the textured quad, all the usual per-fragment operations - * are handled. - */ - - - /* - * Get vertex/fragment shaders - */ - if (type == GL_COLOR) { - rbRead = st_get_color_read_renderbuffer(ctx); - color = NULL; - - fpv = get_color_fp_variant(st); - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); - - if (st->pixel_xfer.pixelmap_enabled) { - sv[1] = st->pixel_xfer.pixelmap_sampler_view; - num_sampler_view++; - } - } - else { - assert(type == GL_DEPTH); - rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer); - color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; - - fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE); - driver_fp = fpv->driver_shader; - - driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); - } - - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); - - - if (rbRead->Base.Wrapped) - rbRead = st_renderbuffer(rbRead->Base.Wrapped); - - sample_count = rbRead->texture->nr_samples; - /* I believe this would be legal, presumably would need to do a resolve - for color, and for depth/stencil spec says to just use one of the - depth/stencil samples per pixel? Need some transfer clarifications. */ - assert(sample_count < 2); - - srcFormat = rbRead->texture->format; - - if (screen->is_format_supported(screen, srcFormat, st->internal_target, - sample_count, - PIPE_BIND_SAMPLER_VIEW)) { - texFormat = srcFormat; - } - else { - /* srcFormat can't be used as a texture format */ - if (type == GL_DEPTH) { - texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT, - st->internal_target, sample_count, - PIPE_BIND_DEPTH_STENCIL); - assert(texFormat != PIPE_FORMAT_NONE); - } - else { - /* default color format */ - texFormat = st_choose_format(screen, GL_RGBA, st->internal_target, - sample_count, PIPE_BIND_SAMPLER_VIEW); - assert(texFormat != PIPE_FORMAT_NONE); - } - } - - /* Invert src region if needed */ - if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { - srcy = ctx->ReadBuffer->Height - srcy - height; - invertTex = !invertTex; - } - - /* Clip the read region against the src buffer bounds. - * We'll still allocate a temporary buffer/texture for the original - * src region size but we'll only read the region which is on-screen. - * This may mean that we draw garbage pixels into the dest region, but - * that's expected. - */ - readX = srcx; - readY = srcy; - readW = width; - readH = height; - _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack); - readW = MAX2(0, readW); - readH = MAX2(0, readH); - - /* alloc temporary texture */ - pt = alloc_texture(st, width, height, texFormat); - if (!pt) - return; - - sv[0] = st_create_texture_sampler_view(st->pipe, pt); - if (!sv[0]) { - pipe_resource_reference(&pt, NULL); - return; - } - - /* Make temporary texture which is a copy of the src region. - */ - if (srcFormat == texFormat) { - struct pipe_box src_box; - u_box_2d(readX, readY, readW, readH, &src_box); - /* copy source framebuffer surface into mipmap/texture */ - pipe->resource_copy_region(pipe, - pt, /* dest tex */ - 0, - pack.SkipPixels, pack.SkipRows, 0, /* dest pos */ - rbRead->texture, /* src tex */ - 0, - &src_box); - - } - else { - /* CPU-based fallback/conversion */ - struct pipe_transfer *ptRead = - pipe_get_transfer(st->pipe, rbRead->texture, - 0, 0, /* level, layer */ - PIPE_TRANSFER_READ, - readX, readY, readW, readH); - struct pipe_transfer *ptTex; - enum pipe_transfer_usage transfer_usage; - - if (ST_DEBUG & DEBUG_FALLBACK) - debug_printf("%s: fallback processing\n", __FUNCTION__); - - if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format)) - transfer_usage = PIPE_TRANSFER_READ_WRITE; - else - transfer_usage = PIPE_TRANSFER_WRITE; - - ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage, - 0, 0, width, height); - - /* copy image from ptRead surface to ptTex surface */ - if (type == GL_COLOR) { - /* alternate path using get/put_tile() */ - GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - enum pipe_format readFormat, drawFormat; - readFormat = util_format_linear(rbRead->texture->format); - drawFormat = util_format_linear(pt->format); - pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH, - readFormat, buf); - pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows, - readW, readH, drawFormat, buf); - free(buf); - } - else { - /* GL_DEPTH */ - GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint)); - pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf); - pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows, - readW, readH, buf); - free(buf); - } - - pipe->transfer_destroy(pipe, ptRead); - pipe->transfer_destroy(pipe, ptTex); - } - - /* OK, the texture 'pt' contains the src image/pixels. Now draw a - * textured quad with that texture. - */ - draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2], - width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, - sv, - num_sampler_view, - driver_vp, - driver_fp, - color, invertTex, GL_FALSE, GL_FALSE); - - pipe_resource_reference(&pt, NULL); - pipe_sampler_view_reference(&sv[0], NULL); -} - - - -void st_init_drawpixels_functions(struct dd_function_table *functions) -{ - functions->DrawPixels = st_DrawPixels; - functions->CopyPixels = st_CopyPixels; -} - - -void -st_destroy_drawpix(struct st_context *st) -{ - GLuint i; - - for (i = 0; i < Elements(st->drawpix.shaders); i++) { - if (st->drawpix.shaders[i]) - _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL); - } - - st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); - if (st->drawpix.vert_shaders[0]) - ureg_free_tokens(st->drawpix.vert_shaders[0]); - if (st->drawpix.vert_shaders[1]) - ureg_free_tokens(st->drawpix.vert_shaders[1]); -} - -#endif /* FEATURE_drawpix */ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 + */ + +#include "main/imports.h" +#include "main/image.h" +#include "main/bufferobj.h" +#include "main/macros.h" +#include "main/mfeatures.h" +#include "main/mtypes.h" +#include "main/pack.h" +#include "main/pbo.h" +#include "main/texformat.h" +#include "main/texstore.h" +#include "program/program.h" +#include "program/prog_print.h" +#include "program/prog_instruction.h" + +#include "st_atom.h" +#include "st_atom_constbuf.h" +#include "st_cb_drawpixels.h" +#include "st_cb_readpixels.h" +#include "st_cb_fbo.h" +#include "st_context.h" +#include "st_debug.h" +#include "st_format.h" +#include "st_program.h" +#include "st_texture.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "tgsi/tgsi_ureg.h" +#include "util/u_draw_quad.h" +#include "util/u_format.h" +#include "util/u_inlines.h" +#include "util/u_math.h" +#include "util/u_tile.h" +#include "cso_cache/cso_context.h" + + +#if FEATURE_drawpix + +/** + * Check if the given program is: + * 0: MOVE result.color, fragment.color; + * 1: END; + */ +static GLboolean +is_passthrough_program(const struct gl_fragment_program *prog) +{ + if (prog->Base.NumInstructions == 2) { + const struct prog_instruction *inst = prog->Base.Instructions; + if (inst[0].Opcode == OPCODE_MOV && + inst[1].Opcode == OPCODE_END && + inst[0].DstReg.File == PROGRAM_OUTPUT && + inst[0].DstReg.Index == FRAG_RESULT_COLOR && + inst[0].DstReg.WriteMask == WRITEMASK_XYZW && + inst[0].SrcReg[0].File == PROGRAM_INPUT && + inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 && + inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) { + return GL_TRUE; + } + } + return GL_FALSE; +} + + + +/** + * Make fragment shader for glDraw/CopyPixels. This shader is made + * by combining the pixel transfer shader with the user-defined shader. + * \param fpIn the current/incoming fragment program + * \param fpOut returns the combined fragment program + */ +void +st_make_drawpix_fragment_program(struct st_context *st, + struct gl_fragment_program *fpIn, + struct gl_fragment_program **fpOut) +{ + struct gl_program *newProg; + + if (is_passthrough_program(fpIn)) { + newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx, + &st->pixel_xfer.program->Base); + } + else { +#if 0 + /* debug */ + printf("Base program:\n"); + _mesa_print_program(&fpIn->Base); + printf("DrawPix program:\n"); + _mesa_print_program(&st->pixel_xfer.program->Base.Base); +#endif + newProg = _mesa_combine_programs(st->ctx, + &st->pixel_xfer.program->Base.Base, + &fpIn->Base); + } + +#if 0 + /* debug */ + printf("Combined DrawPixels program:\n"); + _mesa_print_program(newProg); + printf("InputsRead: 0x%x\n", newProg->InputsRead); + printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten); + _mesa_print_parameter_list(newProg->Parameters); +#endif + + *fpOut = (struct gl_fragment_program *) newProg; +} + + +/** + * Create fragment program that does a TEX() instruction to get a Z and/or + * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL. + * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX). + * Pass fragment color through as-is. + * \return pointer to the gl_fragment program + */ +struct gl_fragment_program * +st_make_drawpix_z_stencil_program(struct st_context *st, + GLboolean write_depth, + GLboolean write_stencil) +{ + struct gl_context *ctx = st->ctx; + struct gl_program *p; + struct gl_fragment_program *fp; + GLuint ic = 0; + const GLuint shaderIndex = write_depth * 2 + write_stencil; + + assert(shaderIndex < Elements(st->drawpix.shaders)); + + if (st->drawpix.shaders[shaderIndex]) { + /* already have the proper shader */ + return st->drawpix.shaders[shaderIndex]; + } + + /* + * Create shader now + */ + p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); + if (!p) + return NULL; + + p->NumInstructions = write_depth ? 2 : 1; + p->NumInstructions += write_stencil ? 1 : 0; + + p->Instructions = _mesa_alloc_instructions(p->NumInstructions); + if (!p->Instructions) { + ctx->Driver.DeleteProgram(ctx, p); + return NULL; + } + _mesa_init_instructions(p->Instructions, p->NumInstructions); + + if (write_depth) { + /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */ + p->Instructions[ic].Opcode = OPCODE_TEX; + p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; + p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH; + p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z; + p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; + p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; + p->Instructions[ic].TexSrcUnit = 0; + p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; + ic++; + } + + if (write_stencil) { + /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */ + p->Instructions[ic].Opcode = OPCODE_TEX; + p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; + p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL; + p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y; + p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; + p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; + p->Instructions[ic].TexSrcUnit = 1; + p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; + ic++; + } + + /* END; */ + p->Instructions[ic++].Opcode = OPCODE_END; + + assert(ic == p->NumInstructions); + + p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0; + p->OutputsWritten = 0; + if (write_depth) + p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_DEPTH); + if (write_stencil) + p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_STENCIL); + + p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */ + if (write_stencil) + p->SamplersUsed |= 1 << 1; + + fp = (struct gl_fragment_program *) p; + + /* save the new shader */ + st->drawpix.shaders[shaderIndex] = fp; + + return fp; +} + + +/** + * Create a simple vertex shader that just passes through the + * vertex position and texcoord (and optionally, color). + */ +static void * +make_passthrough_vertex_shader(struct st_context *st, + GLboolean passColor) +{ + if (!st->drawpix.vert_shaders[passColor]) { + struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); + + if (ureg == NULL) + return NULL; + + /* MOV result.pos, vertex.pos; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ), + ureg_DECL_vs_input( ureg, 0 )); + + /* MOV result.texcoord0, vertex.attr[1]; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ), + ureg_DECL_vs_input( ureg, 1 )); + + if (passColor) { + /* MOV result.color0, vertex.attr[2]; */ + ureg_MOV(ureg, + ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ), + ureg_DECL_vs_input( ureg, 2 )); + } + + ureg_END( ureg ); + + st->drawpix.vert_shaders[passColor] = + ureg_create_shader_and_destroy( ureg, st->pipe ); + } + + return st->drawpix.vert_shaders[passColor]; +} + + +/** + * Return a texture base format for drawing/copying an image + * of the given format. + */ +static GLenum +base_format(GLenum format) +{ + switch (format) { + case GL_DEPTH_COMPONENT: + return GL_DEPTH_COMPONENT; + case GL_DEPTH_STENCIL: + return GL_DEPTH_STENCIL; + case GL_STENCIL_INDEX: + return GL_STENCIL_INDEX; + default: + return GL_RGBA; + } +} + + +/** + * Return a texture internalFormat for drawing/copying an image + * of the given format and type. + */ +static GLenum +internal_format(struct gl_context *ctx, GLenum format, GLenum type) +{ + switch (format) { + case GL_DEPTH_COMPONENT: + return GL_DEPTH_COMPONENT; + case GL_DEPTH_STENCIL: + return GL_DEPTH_STENCIL; + case GL_STENCIL_INDEX: + return GL_STENCIL_INDEX; + default: + if (_mesa_is_integer_format(format)) { + switch (type) { + case GL_BYTE: + return GL_RGBA8I; + case GL_UNSIGNED_BYTE: + return GL_RGBA8UI; + case GL_SHORT: + return GL_RGBA16I; + case GL_UNSIGNED_SHORT: + return GL_RGBA16UI; + case GL_INT: + return GL_RGBA32I; + case GL_UNSIGNED_INT: + return GL_RGBA32UI; + default: + assert(0 && "Unexpected type in internal_format()"); + return GL_RGBA_INTEGER; + } + } + else { + switch (type) { + case GL_UNSIGNED_BYTE: + case GL_UNSIGNED_INT_8_8_8_8: + case GL_UNSIGNED_INT_8_8_8_8_REV: + default: + return GL_RGBA8; + + case GL_UNSIGNED_BYTE_3_3_2: + case GL_UNSIGNED_BYTE_2_3_3_REV: + case GL_UNSIGNED_SHORT_4_4_4_4: + case GL_UNSIGNED_SHORT_4_4_4_4_REV: + return GL_RGBA4; + + case GL_UNSIGNED_SHORT_5_6_5: + case GL_UNSIGNED_SHORT_5_6_5_REV: + case GL_UNSIGNED_SHORT_5_5_5_1: + case GL_UNSIGNED_SHORT_1_5_5_5_REV: + return GL_RGB5_A1; + + case GL_UNSIGNED_INT_10_10_10_2: + case GL_UNSIGNED_INT_2_10_10_10_REV: + return GL_RGB10_A2; + + case GL_UNSIGNED_SHORT: + case GL_UNSIGNED_INT: + return GL_RGBA16; + + case GL_BYTE: + return + ctx->Extensions.EXT_texture_snorm ? GL_RGBA8_SNORM : GL_RGBA8; + + case GL_SHORT: + case GL_INT: + return + ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; + + case GL_HALF_FLOAT_ARB: + return + ctx->Extensions.ARB_texture_float ? GL_RGBA16F : + ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; + + case GL_FLOAT: + case GL_DOUBLE: + return + ctx->Extensions.ARB_texture_float ? GL_RGBA32F : + ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16; + + case GL_UNSIGNED_INT_5_9_9_9_REV: + assert(ctx->Extensions.EXT_texture_shared_exponent); + return GL_RGB9_E5; + + case GL_UNSIGNED_INT_10F_11F_11F_REV: + assert(ctx->Extensions.EXT_packed_float); + return GL_R11F_G11F_B10F; + } + } + } +} + + +/** + * Create a temporary texture to hold an image of the given size. + * If width, height are not POT and the driver only handles POT textures, + * allocate the next larger size of texture that is POT. + */ +static struct pipe_resource * +alloc_texture(struct st_context *st, GLsizei width, GLsizei height, + enum pipe_format texFormat) +{ + struct pipe_resource *pt; + + pt = st_texture_create(st, st->internal_target, texFormat, 0, + width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW); + + return pt; +} + + +/** + * Make texture containing an image for glDrawPixels image. + * If 'pixels' is NULL, leave the texture image data undefined. + */ +static struct pipe_resource * +make_texture(struct st_context *st, + GLsizei width, GLsizei height, GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct gl_context *ctx = st->ctx; + struct pipe_context *pipe = st->pipe; + gl_format mformat; + struct pipe_resource *pt; + enum pipe_format pipeFormat; + GLuint cpp; + GLenum baseFormat, intFormat; + + baseFormat = base_format(format); + intFormat = internal_format(ctx, format, type); + + mformat = st_ChooseTextureFormat_renderable(ctx, intFormat, + format, type, GL_FALSE); + assert(mformat); + + pipeFormat = st_mesa_format_to_pipe_format(mformat); + assert(pipeFormat); + cpp = util_format_get_blocksize(pipeFormat); + + pixels = _mesa_map_pbo_source(ctx, unpack, pixels); + if (!pixels) + return NULL; + + /* alloc temporary texture */ + pt = alloc_texture(st, width, height, pipeFormat); + if (!pt) { + _mesa_unmap_pbo_source(ctx, unpack); + return NULL; + } + + { + struct pipe_transfer *transfer; + static const GLuint dstImageOffsets = 0; + GLboolean success; + GLubyte *dest; + const GLbitfield imageTransferStateSave = ctx->_ImageTransferState; + + /* we'll do pixel transfer in a fragment shader */ + ctx->_ImageTransferState = 0x0; + + transfer = pipe_get_transfer(st->pipe, pt, 0, 0, + PIPE_TRANSFER_WRITE, 0, 0, + width, height); + + /* map texture transfer */ + dest = pipe_transfer_map(pipe, transfer); + + + /* Put image into texture transfer. + * Note that the image is actually going to be upside down in + * the texture. We deal with that with texcoords. + */ + success = _mesa_texstore(ctx, 2, /* dims */ + baseFormat, /* baseInternalFormat */ + mformat, /* gl_format */ + dest, /* dest */ + 0, 0, 0, /* dstX/Y/Zoffset */ + transfer->stride, /* dstRowStride, bytes */ + &dstImageOffsets, /* dstImageOffsets */ + width, height, 1, /* size */ + format, type, /* src format/type */ + pixels, /* data source */ + unpack); + + /* unmap */ + pipe_transfer_unmap(pipe, transfer); + pipe->transfer_destroy(pipe, transfer); + + assert(success); + + /* restore */ + ctx->_ImageTransferState = imageTransferStateSave; + } + + _mesa_unmap_pbo_source(ctx, unpack); + + return pt; +} + + +/** + * Draw quad with texcoords and optional color. + * Coords are gallium window coords with y=0=top. + * \param color may be null + * \param invertTex if true, flip texcoords vertically + */ +static void +draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z, + GLfloat x1, GLfloat y1, const GLfloat *color, + GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */ + + /* setup vertex data */ + { + const struct gl_framebuffer *fb = st->ctx->DrawBuffer; + const GLfloat fb_width = (GLfloat) fb->Width; + const GLfloat fb_height = (GLfloat) fb->Height; + const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f; + const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; + const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; + const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; + const GLfloat sLeft = 0.0f, sRight = maxXcoord; + const GLfloat tTop = invertTex ? maxYcoord : 0.0f; + const GLfloat tBot = invertTex ? 0.0f : maxYcoord; + GLuint i; + + /* upper-left */ + verts[0][0][0] = clip_x0; /* v[0].attr[0].x */ + verts[0][0][1] = clip_y0; /* v[0].attr[0].y */ + + /* upper-right */ + verts[1][0][0] = clip_x1; + verts[1][0][1] = clip_y0; + + /* lower-right */ + verts[2][0][0] = clip_x1; + verts[2][0][1] = clip_y1; + + /* lower-left */ + verts[3][0][0] = clip_x0; + verts[3][0][1] = clip_y1; + + verts[0][1][0] = sLeft; /* v[0].attr[1].S */ + verts[0][1][1] = tTop; /* v[0].attr[1].T */ + verts[1][1][0] = sRight; + verts[1][1][1] = tTop; + verts[2][1][0] = sRight; + verts[2][1][1] = tBot; + verts[3][1][0] = sLeft; + verts[3][1][1] = tBot; + + /* same for all verts: */ + if (color) { + for (i = 0; i < 4; i++) { + verts[i][0][2] = z; /* v[i].attr[0].z */ + verts[i][0][3] = 1.0f; /* v[i].attr[0].w */ + verts[i][2][0] = color[0]; /* v[i].attr[2].r */ + verts[i][2][1] = color[1]; /* v[i].attr[2].g */ + verts[i][2][2] = color[2]; /* v[i].attr[2].b */ + verts[i][2][3] = color[3]; /* v[i].attr[2].a */ + verts[i][1][2] = 0.0f; /* v[i].attr[1].R */ + verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */ + } + } + else { + for (i = 0; i < 4; i++) { + verts[i][0][2] = z; /*Z*/ + verts[i][0][3] = 1.0f; /*W*/ + verts[i][1][2] = 0.0f; /*R*/ + verts[i][1][3] = 1.0f; /*Q*/ + } + } + } + + { + struct pipe_resource *buf; + + /* allocate/load buffer object with vertex data */ + buf = pipe_buffer_create(pipe->screen, + PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STATIC, + sizeof(verts)); + pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts); + + util_draw_vertex_buffer(pipe, st->cso_context, buf, 0, + PIPE_PRIM_QUADS, + 4, /* verts */ + 3); /* attribs/vert */ + pipe_resource_reference(&buf, NULL); + } +} + + + +static void +draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, + GLsizei width, GLsizei height, + GLfloat zoomX, GLfloat zoomY, + struct pipe_sampler_view **sv, + int num_sampler_view, + void *driver_vp, + void *driver_fp, + const GLfloat *color, + GLboolean invertTex, + GLboolean write_depth, GLboolean write_stencil) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct cso_context *cso = st->cso_context; + GLfloat x0, y0, x1, y1; + GLsizei maxSize; + boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT; + + /* limit checks */ + /* XXX if DrawPixels image is larger than max texture size, break + * it up into chunks. + */ + maxSize = 1 << (pipe->screen->get_param(pipe->screen, + PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); + assert(width <= maxSize); + assert(height <= maxSize); + + cso_save_rasterizer(cso); + cso_save_viewport(cso); + cso_save_samplers(cso); + cso_save_fragment_sampler_views(cso); + cso_save_fragment_shader(cso); + cso_save_vertex_shader(cso); + cso_save_vertex_elements(cso); + cso_save_vertex_buffers(cso); + if (write_stencil) { + cso_save_depth_stencil_alpha(cso); + cso_save_blend(cso); + } + + /* rasterizer state: just scissor */ + { + struct pipe_rasterizer_state rasterizer; + memset(&rasterizer, 0, sizeof(rasterizer)); + rasterizer.clamp_fragment_color = ctx->Color._ClampFragmentColor; + rasterizer.gl_rasterization_rules = 1; + rasterizer.scissor = ctx->Scissor.Enabled; + cso_set_rasterizer(cso, &rasterizer); + } + + if (write_stencil) { + /* Stencil writing bypasses the normal fragment pipeline to + * disable color writing and set stencil test to always pass. + */ + struct pipe_depth_stencil_alpha_state dsa; + struct pipe_blend_state blend; + + /* depth/stencil */ + memset(&dsa, 0, sizeof(dsa)); + dsa.stencil[0].enabled = 1; + dsa.stencil[0].func = PIPE_FUNC_ALWAYS; + dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; + dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; + if (write_depth) { + /* writing depth+stencil: depth test always passes */ + dsa.depth.enabled = 1; + dsa.depth.writemask = ctx->Depth.Mask; + dsa.depth.func = PIPE_FUNC_ALWAYS; + } + cso_set_depth_stencil_alpha(cso, &dsa); + + /* blend (colormask) */ + memset(&blend, 0, sizeof(blend)); + cso_set_blend(cso, &blend); + } + + /* fragment shader state: TEX lookup program */ + cso_set_fragment_shader_handle(cso, driver_fp); + + /* vertex shader state: position + texcoord pass-through */ + cso_set_vertex_shader_handle(cso, driver_vp); + + + /* texture sampling state: */ + { + struct pipe_sampler_state sampler; + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP; + sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.normalized_coords = normalized; + + cso_single_sampler(cso, 0, &sampler); + if (num_sampler_view > 1) { + cso_single_sampler(cso, 1, &sampler); + } + cso_single_sampler_done(cso); + } + + /* viewport state: viewport matching window dims */ + { + const float w = (float) ctx->DrawBuffer->Width; + const float h = (float) ctx->DrawBuffer->Height; + struct pipe_viewport_state vp; + vp.scale[0] = 0.5f * w; + vp.scale[1] = -0.5f * h; + vp.scale[2] = 0.5f; + vp.scale[3] = 1.0f; + vp.translate[0] = 0.5f * w; + vp.translate[1] = 0.5f * h; + vp.translate[2] = 0.5f; + vp.translate[3] = 0.0f; + cso_set_viewport(cso, &vp); + } + + cso_set_vertex_elements(cso, 3, st->velems_util_draw); + + /* texture state: */ + cso_set_fragment_sampler_views(cso, num_sampler_view, sv); + + /* Compute Gallium window coords (y=0=top) with pixel zoom. + * Recall that these coords are transformed by the current + * vertex shader and viewport transformation. + */ + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) { + y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY); + invertTex = !invertTex; + } + + x0 = (GLfloat) x; + x1 = x + width * ctx->Pixel.ZoomX; + y0 = (GLfloat) y; + y1 = y + height * ctx->Pixel.ZoomY; + + /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ + z = z * 2.0 - 1.0; + + draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, + normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width, + normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height); + + /* restore state */ + cso_restore_rasterizer(cso); + cso_restore_viewport(cso); + cso_restore_samplers(cso); + cso_restore_fragment_sampler_views(cso); + cso_restore_fragment_shader(cso); + cso_restore_vertex_shader(cso); + cso_restore_vertex_elements(cso); + cso_restore_vertex_buffers(cso); + if (write_stencil) { + cso_restore_depth_stencil_alpha(cso); + cso_restore_blend(cso); + } +} + + +/** + * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we + * can't use a fragment shader to write stencil values. + */ +static void +draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct st_renderbuffer *strb; + enum pipe_transfer_usage usage; + struct pipe_transfer *pt; + const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; + GLint skipPixels; + ubyte *stmap; + struct gl_pixelstore_attrib clippedUnpack = *unpack; + + if (!zoom) { + if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, + &clippedUnpack)) { + /* totally clipped */ + return; + } + } + + strb = st_renderbuffer(ctx->DrawBuffer-> + Attachment[BUFFER_STENCIL].Renderbuffer); + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + y = ctx->DrawBuffer->Height - y - height; + } + + if(format != GL_DEPTH_STENCIL && + util_format_get_component_bits(strb->format, + UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) + usage = PIPE_TRANSFER_READ_WRITE; + else + usage = PIPE_TRANSFER_WRITE; + + pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0, + usage, x, y, + width, height); + + stmap = pipe_transfer_map(pipe, pt); + + pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels); + assert(pixels); + + /* if width > MAX_WIDTH, have to process image in chunks */ + skipPixels = 0; + while (skipPixels < width) { + const GLint spanX = skipPixels; + const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); + GLint row; + for (row = 0; row < height; row++) { + GLubyte sValues[MAX_WIDTH]; + GLuint zValues[MAX_WIDTH]; + GLenum destType = GL_UNSIGNED_BYTE; + const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels, + width, height, + format, type, + row, skipPixels); + _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues, + type, source, &clippedUnpack, + ctx->_ImageTransferState); + + if (format == GL_DEPTH_STENCIL) { + _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues, + (1 << 24) - 1, type, source, + &clippedUnpack); + } + + if (zoom) { + _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with " + "zoom not complete"); + } + + { + GLint spanY; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + spanY = height - row - 1; + } + else { + spanY = row; + } + + /* now pack the stencil (and Z) values in the dest format */ + switch (pt->resource->format) { + case PIPE_FORMAT_S8_USCALED: + { + ubyte *dest = stmap + spanY * pt->stride + spanX; + assert(usage == PIPE_TRANSFER_WRITE); + memcpy(dest, sValues, spanWidth); + } + break; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + if (format == GL_DEPTH_STENCIL) { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = zValues[k] | (sValues[k] << 24); + } + } + else { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24); + } + } + break; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + if (format == GL_DEPTH_STENCIL) { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff); + } + } + else { + uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); + GLint k; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (k = 0; k < spanWidth; k++) { + dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff); + } + } + break; + default: + assert(0); + } + } + } + skipPixels += spanWidth; + } + + _mesa_unmap_pbo_source(ctx, &clippedUnpack); + + /* unmap the stencil buffer */ + pipe_transfer_unmap(pipe, pt); + pipe->transfer_destroy(pipe, pt); +} + + +/** + * Get fragment program variant for a glDrawPixels or glCopyPixels + * command for RGBA data. + */ +static struct st_fp_variant * +get_color_fp_variant(struct st_context *st) +{ + struct gl_context *ctx = st->ctx; + struct st_fp_variant_key key; + struct st_fp_variant *fpv; + + memset(&key, 0, sizeof(key)); + + key.st = st; + key.drawpixels = 1; + key.scaleAndBias = (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); + key.pixelMaps = ctx->Pixel.MapColorFlag; + + fpv = st_get_fp_variant(st, st->fp, &key); + + return fpv; +} + + +/** + * Get fragment program variant for a glDrawPixels or glCopyPixels + * command for depth/stencil data. + */ +static struct st_fp_variant * +get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth, + GLboolean write_stencil) +{ + struct st_fp_variant_key key; + struct st_fp_variant *fpv; + + memset(&key, 0, sizeof(key)); + + key.st = st; + key.drawpixels = 1; + key.drawpixels_z = write_depth; + key.drawpixels_stencil = write_stencil; + + fpv = st_get_fp_variant(st, st->fp, &key); + + return fpv; +} + + +/** + * Called via ctx->Driver.DrawPixels() + */ +static void +st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) +{ + void *driver_vp, *driver_fp; + struct st_context *st = st_context(ctx); + const GLfloat *color; + struct pipe_context *pipe = st->pipe; + GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE; + struct pipe_sampler_view *sv[2]; + int num_sampler_view = 1; + enum pipe_format stencil_format = PIPE_FORMAT_NONE; + struct st_fp_variant *fpv; + + if (format == GL_DEPTH_STENCIL) + write_stencil = write_depth = GL_TRUE; + else if (format == GL_STENCIL_INDEX) + write_stencil = GL_TRUE; + else if (format == GL_DEPTH_COMPONENT) + write_depth = GL_TRUE; + + if (write_stencil) { + enum pipe_format tex_format; + /* can we write to stencil if not fallback */ + if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) + goto stencil_fallback; + + tex_format = st_choose_format(st->pipe->screen, base_format(format), + PIPE_TEXTURE_2D, + 0, PIPE_BIND_SAMPLER_VIEW); + if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) + stencil_format = PIPE_FORMAT_X24S8_USCALED; + else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM) + stencil_format = PIPE_FORMAT_S8X24_USCALED; + else + stencil_format = PIPE_FORMAT_S8_USCALED; + if (stencil_format == PIPE_FORMAT_NONE) + goto stencil_fallback; + } + + /* Mesa state should be up to date by now */ + assert(ctx->NewState == 0x0); + + st_validate_state(st); + + /* + * Get vertex/fragment shaders + */ + if (write_depth || write_stencil) { + fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil); + + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); + + color = ctx->Current.RasterColor; + } + else { + fpv = get_color_fp_variant(st); + + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); + + color = NULL; + if (st->pixel_xfer.pixelmap_enabled) { + sv[1] = st->pixel_xfer.pixelmap_sampler_view; + num_sampler_view++; + } + } + + /* update fragment program constants */ + st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + + /* draw with textured quad */ + { + struct pipe_resource *pt + = make_texture(st, width, height, format, type, unpack, pixels); + if (pt) { + sv[0] = st_create_texture_sampler_view(st->pipe, pt); + + if (sv[0]) { + if (write_stencil) { + sv[1] = st_create_texture_sampler_view_format(st->pipe, pt, + stencil_format); + num_sampler_view++; + } + + draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], + width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, + sv, + num_sampler_view, + driver_vp, + driver_fp, + color, GL_FALSE, write_depth, write_stencil); + pipe_sampler_view_reference(&sv[0], NULL); + if (num_sampler_view > 1) + pipe_sampler_view_reference(&sv[1], NULL); + } + pipe_resource_reference(&pt, NULL); + } + } + return; + +stencil_fallback: + draw_stencil_pixels(ctx, x, y, width, height, format, type, + unpack, pixels); +} + + + +/** + * Software fallback for glCopyPixels(GL_STENCIL). + */ +static void +copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty) +{ + struct st_renderbuffer *rbDraw; + struct pipe_context *pipe = st_context(ctx)->pipe; + enum pipe_transfer_usage usage; + struct pipe_transfer *ptDraw; + ubyte *drawMap; + ubyte *buffer; + int i; + + buffer = malloc(width * height * sizeof(ubyte)); + if (!buffer) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)"); + return; + } + + /* Get the dest renderbuffer. If there's a wrapper, use the + * underlying renderbuffer. + */ + rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer); + if (rbDraw->Base.Wrapped) + rbDraw = st_renderbuffer(rbDraw->Base.Wrapped); + + /* this will do stencil pixel transfer ops */ + st_read_stencil_pixels(ctx, srcx, srcy, width, height, + GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, + &ctx->DefaultPacking, buffer); + + if (0) { + /* debug code: dump stencil values */ + GLint row, col; + for (row = 0; row < height; row++) { + printf("%3d: ", row); + for (col = 0; col < width; col++) { + printf("%02x ", buffer[col + row * width]); + } + printf("\n"); + } + } + + if (util_format_get_component_bits(rbDraw->format, + UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) + usage = PIPE_TRANSFER_READ_WRITE; + else + usage = PIPE_TRANSFER_WRITE; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + dsty = rbDraw->Base.Height - dsty - height; + } + + ptDraw = pipe_get_transfer(st_context(ctx)->pipe, + rbDraw->texture, 0, 0, + usage, dstx, dsty, + width, height); + + assert(util_format_get_blockwidth(ptDraw->resource->format) == 1); + assert(util_format_get_blockheight(ptDraw->resource->format) == 1); + + /* map the stencil buffer */ + drawMap = pipe_transfer_map(pipe, ptDraw); + + /* draw */ + /* XXX PixelZoom not handled yet */ + for (i = 0; i < height; i++) { + ubyte *dst; + const ubyte *src; + int y; + + y = i; + + if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { + y = height - y - 1; + } + + dst = drawMap + y * ptDraw->stride; + src = buffer + i * width; + + switch (ptDraw->resource->format) { + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + { + uint *dst4 = (uint *) dst; + int j; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (j = 0; j < width; j++) { + *dst4 = (*dst4 & 0xffffff) | (src[j] << 24); + dst4++; + } + } + break; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + { + uint *dst4 = (uint *) dst; + int j; + assert(usage == PIPE_TRANSFER_READ_WRITE); + for (j = 0; j < width; j++) { + *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff); + dst4++; + } + } + break; + case PIPE_FORMAT_S8_USCALED: + assert(usage == PIPE_TRANSFER_WRITE); + memcpy(dst, src, width); + break; + default: + assert(0); + } + } + + free(buffer); + + /* unmap the stencil buffer */ + pipe_transfer_unmap(pipe, ptDraw); + pipe->transfer_destroy(pipe, ptDraw); +} + + +/** Do the src/dest regions overlap? */ +static GLboolean +regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY, + GLsizei width, GLsizei height) +{ + if (srcX + width <= dstX || + dstX + width <= srcX || + srcY + height <= dstY || + dstY + height <= srcY) + return GL_FALSE; + else + return GL_TRUE; +} + + +/** + * Try to do a glCopyPixels for simple cases with a blit by calling + * pipe->resource_copy_region(). + * + * We can do this when we're copying color pixels (depth/stencil + * eventually) with no pixel zoom, no pixel transfer ops, no + * per-fragment ops, the src/dest regions don't overlap and the + * src/dest pixel formats are the same. + */ +static GLboolean +blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct gl_pixelstore_attrib pack, unpack; + GLint readX, readY, readW, readH; + + if (type == GL_COLOR && + ctx->Pixel.ZoomX == 1.0 && + ctx->Pixel.ZoomY == 1.0 && + ctx->_ImageTransferState == 0x0 && + !ctx->Color.BlendEnabled && + !ctx->Color.AlphaEnabled && + !ctx->Depth.Test && + !ctx->Fog.Enabled && + !ctx->Stencil.Enabled && + !ctx->FragmentProgram.Enabled && + !ctx->VertexProgram.Enabled && + !ctx->Shader.CurrentFragmentProgram && + st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) && + ctx->DrawBuffer->_NumColorDrawBuffers == 1) { + struct st_renderbuffer *rbRead, *rbDraw; + GLint drawX, drawY; + + /* + * Clip the read region against the src buffer bounds. + * We'll still allocate a temporary buffer/texture for the original + * src region size but we'll only read the region which is on-screen. + * This may mean that we draw garbage pixels into the dest region, but + * that's expected. + */ + readX = srcx; + readY = srcy; + readW = width; + readH = height; + pack = ctx->DefaultPacking; + if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack)) + return GL_TRUE; /* all done */ + + /* clip against dest buffer bounds and scissor box */ + drawX = dstx + pack.SkipPixels; + drawY = dsty + pack.SkipRows; + unpack = pack; + if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack)) + return GL_TRUE; /* all done */ + + readX = readX - pack.SkipPixels + unpack.SkipPixels; + readY = readY - pack.SkipRows + unpack.SkipRows; + + rbRead = st_get_color_read_renderbuffer(ctx); + rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]); + + if ((rbRead != rbDraw || + !regions_overlap(readX, readY, drawX, drawY, readW, readH)) && + rbRead->Base.Format == rbDraw->Base.Format) { + struct pipe_box srcBox; + + /* flip src/dst position if needed */ + if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + /* both buffers will have the same orientation */ + readY = ctx->ReadBuffer->Height - readY - readH; + drawY = ctx->DrawBuffer->Height - drawY - readH; + } + + u_box_2d(readX, readY, readW, readH, &srcBox); + + pipe->resource_copy_region(pipe, + rbDraw->texture, 0, drawX, drawY, 0, + rbRead->texture, 0, &srcBox); + return GL_TRUE; + } + } + + return GL_FALSE; +} + + +static void +st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct st_context *st = st_context(ctx); + struct pipe_context *pipe = st->pipe; + struct pipe_screen *screen = pipe->screen; + struct st_renderbuffer *rbRead; + void *driver_vp, *driver_fp; + struct pipe_resource *pt; + struct pipe_sampler_view *sv[2]; + int num_sampler_view = 1; + GLfloat *color; + enum pipe_format srcFormat, texFormat; + GLboolean invertTex = GL_FALSE; + GLint readX, readY, readW, readH; + GLuint sample_count; + struct gl_pixelstore_attrib pack = ctx->DefaultPacking; + struct st_fp_variant *fpv; + + st_validate_state(st); + + if (type == GL_STENCIL) { + /* can't use texturing to do stencil */ + copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty); + return; + } + + if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type)) + return; + + /* + * The subsequent code implements glCopyPixels by copying the source + * pixels into a temporary texture that's then applied to a textured quad. + * When we draw the textured quad, all the usual per-fragment operations + * are handled. + */ + + + /* + * Get vertex/fragment shaders + */ + if (type == GL_COLOR) { + rbRead = st_get_color_read_renderbuffer(ctx); + color = NULL; + + fpv = get_color_fp_variant(st); + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); + + if (st->pixel_xfer.pixelmap_enabled) { + sv[1] = st->pixel_xfer.pixelmap_sampler_view; + num_sampler_view++; + } + } + else { + assert(type == GL_DEPTH); + rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer); + color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; + + fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE); + driver_fp = fpv->driver_shader; + + driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); + } + + /* update fragment program constants */ + st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + + + if (rbRead->Base.Wrapped) + rbRead = st_renderbuffer(rbRead->Base.Wrapped); + + sample_count = rbRead->texture->nr_samples; + /* I believe this would be legal, presumably would need to do a resolve + for color, and for depth/stencil spec says to just use one of the + depth/stencil samples per pixel? Need some transfer clarifications. */ + assert(sample_count < 2); + + srcFormat = rbRead->texture->format; + + if (screen->is_format_supported(screen, srcFormat, st->internal_target, + sample_count, + PIPE_BIND_SAMPLER_VIEW)) { + texFormat = srcFormat; + } + else { + /* srcFormat can't be used as a texture format */ + if (type == GL_DEPTH) { + texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT, + st->internal_target, sample_count, + PIPE_BIND_DEPTH_STENCIL); + assert(texFormat != PIPE_FORMAT_NONE); + } + else { + /* default color format */ + texFormat = st_choose_format(screen, GL_RGBA, st->internal_target, + sample_count, PIPE_BIND_SAMPLER_VIEW); + assert(texFormat != PIPE_FORMAT_NONE); + } + } + + /* Invert src region if needed */ + if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + srcy = ctx->ReadBuffer->Height - srcy - height; + invertTex = !invertTex; + } + + /* Clip the read region against the src buffer bounds. + * We'll still allocate a temporary buffer/texture for the original + * src region size but we'll only read the region which is on-screen. + * This may mean that we draw garbage pixels into the dest region, but + * that's expected. + */ + readX = srcx; + readY = srcy; + readW = width; + readH = height; + _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack); + readW = MAX2(0, readW); + readH = MAX2(0, readH); + + /* alloc temporary texture */ + pt = alloc_texture(st, width, height, texFormat); + if (!pt) + return; + + sv[0] = st_create_texture_sampler_view(st->pipe, pt); + if (!sv[0]) { + pipe_resource_reference(&pt, NULL); + return; + } + + /* Make temporary texture which is a copy of the src region. + */ + if (srcFormat == texFormat) { + struct pipe_box src_box; + u_box_2d(readX, readY, readW, readH, &src_box); + /* copy source framebuffer surface into mipmap/texture */ + pipe->resource_copy_region(pipe, + pt, /* dest tex */ + 0, + pack.SkipPixels, pack.SkipRows, 0, /* dest pos */ + rbRead->texture, /* src tex */ + 0, + &src_box); + + } + else { + /* CPU-based fallback/conversion */ + struct pipe_transfer *ptRead = + pipe_get_transfer(st->pipe, rbRead->texture, + 0, 0, /* level, layer */ + PIPE_TRANSFER_READ, + readX, readY, readW, readH); + struct pipe_transfer *ptTex; + enum pipe_transfer_usage transfer_usage; + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format)) + transfer_usage = PIPE_TRANSFER_READ_WRITE; + else + transfer_usage = PIPE_TRANSFER_WRITE; + + ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage, + 0, 0, width, height); + + /* copy image from ptRead surface to ptTex surface */ + if (type == GL_COLOR) { + /* alternate path using get/put_tile() */ + GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); + enum pipe_format readFormat, drawFormat; + readFormat = util_format_linear(rbRead->texture->format); + drawFormat = util_format_linear(pt->format); + pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH, + readFormat, buf); + pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows, + readW, readH, drawFormat, buf); + free(buf); + } + else { + /* GL_DEPTH */ + GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint)); + pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf); + pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows, + readW, readH, buf); + free(buf); + } + + pipe->transfer_destroy(pipe, ptRead); + pipe->transfer_destroy(pipe, ptTex); + } + + /* OK, the texture 'pt' contains the src image/pixels. Now draw a + * textured quad with that texture. + */ + draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2], + width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, + sv, + num_sampler_view, + driver_vp, + driver_fp, + color, invertTex, GL_FALSE, GL_FALSE); + + pipe_resource_reference(&pt, NULL); + pipe_sampler_view_reference(&sv[0], NULL); +} + + + +void st_init_drawpixels_functions(struct dd_function_table *functions) +{ + functions->DrawPixels = st_DrawPixels; + functions->CopyPixels = st_CopyPixels; +} + + +void +st_destroy_drawpix(struct st_context *st) +{ + GLuint i; + + for (i = 0; i < Elements(st->drawpix.shaders); i++) { + if (st->drawpix.shaders[i]) + _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL); + } + + st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); + if (st->drawpix.vert_shaders[0]) + ureg_free_tokens(st->drawpix.vert_shaders[0]); + if (st->drawpix.vert_shaders[1]) + ureg_free_tokens(st->drawpix.vert_shaders[1]); +} + +#endif /* FEATURE_drawpix */ diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c index 339e00d30..0c5e1991c 100644 --- a/mesalib/src/mesa/state_tracker/st_extensions.c +++ b/mesalib/src/mesa/state_tracker/st_extensions.c @@ -1,579 +1,598 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * Copyright (c) 2008 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 "main/imports.h" -#include "main/context.h" -#include "main/macros.h" -#include "main/mfeatures.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" - -#include "st_context.h" -#include "st_extensions.h" - - -static int _min(int a, int b) -{ - return (a < b) ? a : b; -} - -static float _maxf(float a, float b) -{ - return (a > b) ? a : b; -} - -static int _clamp(int a, int min, int max) -{ - if (a < min) - return min; - else if (a > max) - return max; - else - return a; -} - - -/** - * Query driver to get implementation limits. - * Note that we have to limit/clamp against Mesa's internal limits too. - */ -void st_init_limits(struct st_context *st) -{ - struct pipe_screen *screen = st->pipe->screen; - struct gl_constants *c = &st->ctx->Const; - gl_shader_type sh; - - c->MaxTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS), - MAX_TEXTURE_LEVELS); - - c->Max3DTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS), - MAX_3D_TEXTURE_LEVELS); - - c->MaxCubeTextureLevels - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS), - MAX_CUBE_TEXTURE_LEVELS); - - c->MaxTextureRectSize - = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE); - - c->MaxTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS), - MAX_TEXTURE_IMAGE_UNITS); - - c->MaxVertexTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS), - MAX_VERTEX_TEXTURE_IMAGE_UNITS); - - c->MaxCombinedTextureImageUnits - = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS), - MAX_COMBINED_TEXTURE_IMAGE_UNITS); - - c->MaxTextureCoordUnits - = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS); - - c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits); - - c->MaxDrawBuffers - = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), - 1, MAX_DRAW_BUFFERS); - - c->MaxLineWidth - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH)); - c->MaxLineWidthAA - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA)); - - c->MaxPointSize - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH)); - c->MaxPointSizeAA - = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA)); - /* called after _mesa_create_context/_mesa_init_point, fix default user - * settable max point size up - */ - st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA); - /* these are not queryable. Note that GL basically mandates a 1.0 minimum - * for non-aa sizes, but we can go down to 0.0 for aa points. - */ - c->MinPointSize = 1.0f; - c->MinPointSizeAA = 0.0f; - - c->MaxTextureMaxAnisotropy - = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY)); - - c->MaxTextureLodBias - = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS); - - c->MaxDrawBuffers - = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), - 1, MAX_DRAW_BUFFERS); - - /* Quads always follow GL provoking rules. */ - c->QuadsFollowProvokingVertexConvention = GL_FALSE; - - for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) { - struct gl_shader_compiler_options *options = - &st->ctx->ShaderCompilerOptions[sh]; - struct gl_program_constants *pc; - - switch (sh) { - case PIPE_SHADER_FRAGMENT: - pc = &c->FragmentProgram; - break; - case PIPE_SHADER_VERTEX: - pc = &c->VertexProgram; - break; - case PIPE_SHADER_GEOMETRY: - pc = &c->GeometryProgram; - break; - default: - assert(0); - continue; - } - - pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS); - pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS); - pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS); - pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS); - pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS); - pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS); - pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS); - pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS); - pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS); - /* raise MaxParameters if native support is higher */ - pc->MaxParameters = MAX2(pc->MaxParameters, pc->MaxNativeParameters); - - options->EmitNoNoise = TRUE; - - /* TODO: make these more fine-grained if anyone needs it */ - options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); - options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); - options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); - options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); - - options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); - - options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR); - options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR); - options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR); - options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh, - PIPE_SHADER_CAP_INDIRECT_CONST_ADDR); - - if (options->EmitNoLoops) - options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); - } - - /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs - * and is set in MaxNativeAttribs. It's always 2 colors + N generic - * attributes. The GLSL compiler never uses COLORn for varyings, so we - * subtract the 2 colors to get the maximum number of varyings (generic - * attributes) supported by a driver. */ - c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2; - c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING); - - /* XXX we'll need a better query here someday */ - if (screen->get_param(screen, PIPE_CAP_GLSL)) { - c->GLSLVersion = 120; - } -} - - -/** - * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine - * which GL extensions are supported. - * Quite a few extensions are always supported because they are standard - * features or can be built on top of other gallium features. - * Some fine tuning may still be needed. - */ -void st_init_extensions(struct st_context *st) -{ - struct pipe_screen *screen = st->pipe->screen; - struct gl_context *ctx = st->ctx; - - /* - * Extensions that are supported by all Gallium drivers: - */ - ctx->Extensions.ARB_copy_buffer = GL_TRUE; - ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; - ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; - ctx->Extensions.ARB_fragment_program = GL_TRUE; - ctx->Extensions.ARB_half_float_pixel = GL_TRUE; - ctx->Extensions.ARB_map_buffer_range = GL_TRUE; - ctx->Extensions.ARB_multisample = GL_TRUE; - ctx->Extensions.ARB_sampler_objects = GL_TRUE; - ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */ - 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_crossbar = GL_TRUE; - ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; - ctx->Extensions.ARB_vertex_array_object = GL_TRUE; - ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; - ctx->Extensions.ARB_vertex_program = 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_logic_op = GL_TRUE; - ctx->Extensions.EXT_blend_minmax = GL_TRUE; - ctx->Extensions.EXT_blend_subtract = GL_TRUE; - ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; - ctx->Extensions.EXT_framebuffer_object = GL_TRUE; - ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; - ctx->Extensions.EXT_fog_coord = GL_TRUE; - ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; - ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; - ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; - ctx->Extensions.EXT_point_parameters = GL_TRUE; - ctx->Extensions.EXT_provoking_vertex = GL_TRUE; - ctx->Extensions.EXT_secondary_color = GL_TRUE; - ctx->Extensions.EXT_stencil_wrap = 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_lod_bias = GL_TRUE; - ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; - if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2) - ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE; - - ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; - - ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; - - ctx->Extensions.MESA_pack_invert = GL_TRUE; - - ctx->Extensions.NV_blend_square = GL_TRUE; - ctx->Extensions.NV_texgen_reflection = GL_TRUE; - ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; - ctx->Extensions.NV_texture_rectangle = GL_TRUE; -#if 0 - /* possibly could support the following two */ - ctx->Extensions.NV_vertex_program = GL_TRUE; - ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; -#endif - -#if FEATURE_OES_EGL_image - ctx->Extensions.OES_EGL_image = GL_TRUE; -#endif -#if FEATURE_OES_draw_texture - ctx->Extensions.OES_draw_texture = GL_TRUE; -#endif - - ctx->Extensions.SGIS_generate_mipmap = GL_TRUE; - - /* - * Extensions that depend on the driver/hardware: - */ - if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) { - ctx->Extensions.ARB_draw_buffers = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) { - ctx->Extensions.EXT_texture_swizzle = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_GLSL)) { - ctx->Extensions.ARB_fragment_shader = GL_TRUE; - ctx->Extensions.ARB_vertex_shader = GL_TRUE; - ctx->Extensions.ARB_shader_objects = GL_TRUE; - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; - ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; - ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) { - ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) { - ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) { - ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; - ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) { - ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) { - ctx->Extensions.ARB_multitexture = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) { - ctx->Extensions.ATI_separate_stencil = GL_TRUE; - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) { - ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) { - ctx->Extensions.ARB_point_sprite = GL_TRUE; - /* GL_NV_point_sprite is not supported by gallium because we don't - * support the GL_POINT_SPRITE_R_MODE_NV option. - */ - } - - if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) { - ctx->Extensions.ARB_occlusion_query = GL_TRUE; - ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; - } - if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) { - ctx->Extensions.EXT_timer_query = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) { - ctx->Extensions.ARB_depth_texture = GL_TRUE; - ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; - ctx->Extensions.ARB_shadow = GL_TRUE; - ctx->Extensions.EXT_shadow_funcs = GL_TRUE; - /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/ - } - - /* GL_EXT_packed_depth_stencil requires both the ability to render to - * a depth/stencil buffer and texture from depth/stencil source. - */ - if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_DEPTH_STENCIL) && - screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - } - else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_DEPTH_STENCIL) && - screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; - } - - /* float support - assume nothing exclusively supports 64-bit floats */ - if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW | - PIPE_BIND_RENDER_TARGET) && - screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW | - PIPE_BIND_RENDER_TARGET)) { - ctx->Extensions.ARB_texture_float = GL_TRUE; - } - - /* sRGB support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) || - screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.EXT_texture_sRGB = GL_TRUE; - ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; - if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) || - screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET)) { - ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE; - ctx->Const.sRGBCapable = GL_TRUE; - } - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.ARB_texture_rg = GL_TRUE; - } - - /* s3tc support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - ctx->Mesa_DXTn) { - ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE; - ctx->Extensions.S3_s3tc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) - ) { - ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) && - screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.EXT_texture_compression_latc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE; - } - - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.EXT_texture_snorm = GL_TRUE; - } - - /* ycbcr support */ - if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW) || - screen->is_format_supported(screen, PIPE_FORMAT_YUYV, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_SAMPLER_VIEW)) { - ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; - } - - /* GL_EXT_texture_array */ - if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) { - ctx->Extensions.EXT_texture_array = GL_TRUE; - ctx->Extensions.MESA_texture_array = GL_TRUE; - } - - /* GL_ARB_framebuffer_object */ - if (ctx->Extensions.EXT_packed_depth_stencil) { - /* we support always support GL_EXT_framebuffer_blit */ - ctx->Extensions.ARB_framebuffer_object = GL_TRUE; - } - - if (st->pipe->render_condition) { - ctx->Extensions.NV_conditional_render = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) { - ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) { - ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE; - } - - /* GL_ARB_half_float_vertex */ - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_BUFFER, 0, - PIPE_BIND_VERTEX_BUFFER)) { - ctx->Extensions.ARB_half_float_vertex = GL_TRUE; - } - - if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) { -#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */ - ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; -#endif - } - - if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) { - ctx->Extensions.NV_primitive_restart = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) { - ctx->Extensions.ARB_depth_clamp = GL_TRUE; - } - - /* This extension does not actually require support of floating point - * render targets, just clamping controls. - * Advertise this extension if either fragment color clamping is supported - * or no render targets having color values outside of the range [0, 1] - * are supported, in which case the fragment color clamping has no effect - * on rendering. - */ - if (screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL) || - (!screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) && - !screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) && - !screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) && - !screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) && - !screen->is_format_supported(screen, PIPE_FORMAT_R11G11B10_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET) && - !screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, - PIPE_TEXTURE_2D, 0, - PIPE_BIND_RENDER_TARGET))) { - ctx->Extensions.ARB_color_buffer_float = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) { - ctx->Extensions.ARB_shader_stencil_export = GL_TRUE; - } - - if (screen->get_param(screen, PIPE_CAP_TGSI_INSTANCEID)) { - ctx->Extensions.ARB_draw_instanced = GL_TRUE; - } - if (screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR)) { - ctx->Extensions.ARB_instanced_arrays = GL_TRUE; - } - - if (screen->fence_finish) { - ctx->Extensions.ARB_sync = GL_TRUE; - } - - if (st->pipe->texture_barrier) { - ctx->Extensions.NV_texture_barrier = GL_TRUE; - } -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright (c) 2008 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 "main/imports.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/mfeatures.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" + +#include "st_context.h" +#include "st_extensions.h" + + +static int _min(int a, int b) +{ + return (a < b) ? a : b; +} + +static float _maxf(float a, float b) +{ + return (a > b) ? a : b; +} + +static int _clamp(int a, int min, int max) +{ + if (a < min) + return min; + else if (a > max) + return max; + else + return a; +} + + +/** + * Query driver to get implementation limits. + * Note that we have to limit/clamp against Mesa's internal limits too. + */ +void st_init_limits(struct st_context *st) +{ + struct pipe_screen *screen = st->pipe->screen; + struct gl_constants *c = &st->ctx->Const; + gl_shader_type sh; + + c->MaxTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS), + MAX_TEXTURE_LEVELS); + + c->Max3DTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS), + MAX_3D_TEXTURE_LEVELS); + + c->MaxCubeTextureLevels + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS), + MAX_CUBE_TEXTURE_LEVELS); + + c->MaxTextureRectSize + = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE); + + c->MaxTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS), + MAX_TEXTURE_IMAGE_UNITS); + + c->MaxVertexTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS), + MAX_VERTEX_TEXTURE_IMAGE_UNITS); + + c->MaxCombinedTextureImageUnits + = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS), + MAX_COMBINED_TEXTURE_IMAGE_UNITS); + + c->MaxTextureCoordUnits + = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS); + + c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits); + + c->MaxDrawBuffers + = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), + 1, MAX_DRAW_BUFFERS); + + c->MaxLineWidth + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH)); + c->MaxLineWidthAA + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA)); + + c->MaxPointSize + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH)); + c->MaxPointSizeAA + = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA)); + /* called after _mesa_create_context/_mesa_init_point, fix default user + * settable max point size up + */ + st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA); + /* these are not queryable. Note that GL basically mandates a 1.0 minimum + * for non-aa sizes, but we can go down to 0.0 for aa points. + */ + c->MinPointSize = 1.0f; + c->MinPointSizeAA = 0.0f; + + c->MaxTextureMaxAnisotropy + = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY)); + + c->MaxTextureLodBias + = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS); + + c->MaxDrawBuffers + = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), + 1, MAX_DRAW_BUFFERS); + + /* Quads always follow GL provoking rules. */ + c->QuadsFollowProvokingVertexConvention = GL_FALSE; + + for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) { + struct gl_shader_compiler_options *options = + &st->ctx->ShaderCompilerOptions[sh]; + struct gl_program_constants *pc; + + switch (sh) { + case PIPE_SHADER_FRAGMENT: + pc = &c->FragmentProgram; + break; + case PIPE_SHADER_VERTEX: + pc = &c->VertexProgram; + break; + case PIPE_SHADER_GEOMETRY: + pc = &c->GeometryProgram; + break; + default: + assert(0); + continue; + } + + pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS); + pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS); + pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS); + pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS); + pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS); + pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS); + pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS); + pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS); + pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS); + /* raise MaxParameters if native support is higher */ + pc->MaxParameters = MAX2(pc->MaxParameters, pc->MaxNativeParameters); + + options->EmitNoNoise = TRUE; + + /* TODO: make these more fine-grained if anyone needs it */ + options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); + options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); + + options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); + + options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR); + options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR); + options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR); + options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh, + PIPE_SHADER_CAP_INDIRECT_CONST_ADDR); + + if (options->EmitNoLoops) + options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); + } + + /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs + * and is set in MaxNativeAttribs. It's always 2 colors + N generic + * attributes. The GLSL compiler never uses COLORn for varyings, so we + * subtract the 2 colors to get the maximum number of varyings (generic + * attributes) supported by a driver. */ + c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INPUTS) - 2; + c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING); + + /* XXX we'll need a better query here someday */ + if (screen->get_param(screen, PIPE_CAP_GLSL)) { + c->GLSLVersion = 120; + } +} + + +/** + * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine + * which GL extensions are supported. + * Quite a few extensions are always supported because they are standard + * features or can be built on top of other gallium features. + * Some fine tuning may still be needed. + */ +void st_init_extensions(struct st_context *st) +{ + struct pipe_screen *screen = st->pipe->screen; + struct gl_context *ctx = st->ctx; + + /* + * Extensions that are supported by all Gallium drivers: + */ + ctx->Extensions.ARB_copy_buffer = GL_TRUE; + ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; + ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; + ctx->Extensions.ARB_fragment_program = GL_TRUE; + ctx->Extensions.ARB_half_float_pixel = GL_TRUE; + ctx->Extensions.ARB_map_buffer_range = GL_TRUE; + ctx->Extensions.ARB_multisample = GL_TRUE; + ctx->Extensions.ARB_sampler_objects = GL_TRUE; + ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */ + 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_crossbar = GL_TRUE; + ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; + ctx->Extensions.ARB_vertex_array_object = GL_TRUE; + ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; + ctx->Extensions.ARB_vertex_program = 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_logic_op = GL_TRUE; + ctx->Extensions.EXT_blend_minmax = GL_TRUE; + ctx->Extensions.EXT_blend_subtract = GL_TRUE; + ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; + ctx->Extensions.EXT_framebuffer_object = GL_TRUE; + ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; + ctx->Extensions.EXT_fog_coord = GL_TRUE; + ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; + ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; + ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; + ctx->Extensions.EXT_point_parameters = GL_TRUE; + ctx->Extensions.EXT_provoking_vertex = GL_TRUE; + ctx->Extensions.EXT_secondary_color = GL_TRUE; + ctx->Extensions.EXT_stencil_wrap = 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_lod_bias = GL_TRUE; + ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; + if (ctx->API == API_OPENGLES || ctx->API == API_OPENGLES2) + ctx->Extensions.EXT_texture_format_BGRA8888 = GL_TRUE; + + ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; + + ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; + + ctx->Extensions.MESA_pack_invert = GL_TRUE; + + ctx->Extensions.NV_blend_square = GL_TRUE; + ctx->Extensions.NV_texgen_reflection = GL_TRUE; + ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; + ctx->Extensions.NV_texture_rectangle = GL_TRUE; +#if 0 + /* possibly could support the following two */ + ctx->Extensions.NV_vertex_program = GL_TRUE; + ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; +#endif + +#if FEATURE_OES_EGL_image + ctx->Extensions.OES_EGL_image = GL_TRUE; +#endif +#if FEATURE_OES_draw_texture + ctx->Extensions.OES_draw_texture = GL_TRUE; +#endif + + ctx->Extensions.SGIS_generate_mipmap = GL_TRUE; + + /* + * Extensions that depend on the driver/hardware: + */ + if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) { + ctx->Extensions.ARB_draw_buffers = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_SWIZZLE) > 0) { + ctx->Extensions.EXT_texture_swizzle = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_GLSL)) { + ctx->Extensions.ARB_fragment_shader = GL_TRUE; + ctx->Extensions.ARB_vertex_shader = GL_TRUE; + ctx->Extensions.ARB_shader_objects = GL_TRUE; + ctx->Extensions.ARB_shading_language_100 = GL_TRUE; + ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; + ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) { + ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_SEPARATE)) { + ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) { + ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE; + ctx->Extensions.ATI_texture_mirror_once = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) { + ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) { + ctx->Extensions.ARB_multitexture = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) { + ctx->Extensions.ATI_separate_stencil = GL_TRUE; + ctx->Extensions.EXT_stencil_two_side = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) { + ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) { + ctx->Extensions.ARB_point_sprite = GL_TRUE; + /* GL_NV_point_sprite is not supported by gallium because we don't + * support the GL_POINT_SPRITE_R_MODE_NV option. + */ + } + + if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) { + ctx->Extensions.ARB_occlusion_query = GL_TRUE; + ctx->Extensions.ARB_occlusion_query2 = GL_TRUE; + } + if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY)) { + ctx->Extensions.EXT_timer_query = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) { + ctx->Extensions.ARB_depth_texture = GL_TRUE; + ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; + ctx->Extensions.ARB_shadow = GL_TRUE; + ctx->Extensions.EXT_shadow_funcs = GL_TRUE; + /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/ + } + + /* GL_EXT_packed_depth_stencil requires both the ability to render to + * a depth/stencil buffer and texture from depth/stencil source. + */ + if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_DEPTH_STENCIL) && + screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; + } + else if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_DEPTH_STENCIL) && + screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; + } + + /* float support - assume nothing exclusively supports 64-bit floats */ + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW | + PIPE_BIND_RENDER_TARGET) && + screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW | + PIPE_BIND_RENDER_TARGET)) { + ctx->Extensions.ARB_texture_float = GL_TRUE; + } + + /* sRGB support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) || + screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_sRGB = GL_TRUE; + ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE; + if (screen->is_format_supported(screen, PIPE_FORMAT_A8B8G8R8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) || + screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET)) { + ctx->Extensions.EXT_framebuffer_sRGB = GL_TRUE; + ctx->Const.sRGBCapable = GL_TRUE; + } + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.ARB_texture_rg = GL_TRUE; + } + + /* s3tc support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + ctx->Mesa_DXTn) { + ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE; + ctx->Extensions.S3_s3tc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) + ) { + ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) && + screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_compression_latc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_snorm = GL_TRUE; + } + + /* ycbcr support */ + if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW) || + screen->is_format_supported(screen, PIPE_FORMAT_YUYV, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; + } + + /* GL_EXT_texture_array */ + if (screen->get_param(screen, PIPE_CAP_ARRAY_TEXTURES)) { + ctx->Extensions.EXT_texture_array = GL_TRUE; + ctx->Extensions.MESA_texture_array = GL_TRUE; + } + + /* GL_ARB_framebuffer_object */ + if (ctx->Extensions.EXT_packed_depth_stencil) { + /* we support always support GL_EXT_framebuffer_blit */ + ctx->Extensions.ARB_framebuffer_object = GL_TRUE; + } + + if (st->pipe->render_condition) { + ctx->Extensions.NV_conditional_render = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE)) { + ctx->Extensions.EXT_draw_buffers2 = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC)) { + ctx->Extensions.ARB_draw_buffers_blend = GL_TRUE; + } + + /* GL_ARB_half_float_vertex */ + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_BUFFER, 0, + PIPE_BIND_VERTEX_BUFFER)) { + ctx->Extensions.ARB_half_float_vertex = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FIXED, + PIPE_BUFFER, 0, + PIPE_BIND_VERTEX_BUFFER)) { + ctx->Extensions.ARB_ES2_compatibility = GL_TRUE; + } + + if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) { +#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */ + ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; +#endif + } + + if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) { + ctx->Extensions.NV_primitive_restart = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_DEPTH_CLAMP)) { + ctx->Extensions.ARB_depth_clamp = GL_TRUE; + } + + /* This extension does not actually require support of floating point + * render targets, just clamping controls. + * Advertise this extension if either fragment color clamping is supported + * or no render targets having color values outside of the range [0, 1] + * are supported, in which case the fragment color clamping has no effect + * on rendering. + */ + if (screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL) || + (!screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) && + !screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) && + !screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) && + !screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) && + !screen->is_format_supported(screen, PIPE_FORMAT_R11G11B10_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET) && + !screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET))) { + ctx->Extensions.ARB_color_buffer_float = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) { + ctx->Extensions.ARB_shader_stencil_export = GL_TRUE; + } + + if (screen->get_param(screen, PIPE_CAP_TGSI_INSTANCEID)) { + ctx->Extensions.ARB_draw_instanced = GL_TRUE; + } + if (screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR)) { + ctx->Extensions.ARB_instanced_arrays = GL_TRUE; + } + + if (screen->fence_finish) { + ctx->Extensions.ARB_sync = GL_TRUE; + } + + if (st->pipe->texture_barrier) { + ctx->Extensions.NV_texture_barrier = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_texture_shared_exponent = GL_TRUE; + } + + if (screen->is_format_supported(screen, PIPE_FORMAT_R11G11B10_FLOAT, + PIPE_TEXTURE_2D, 0, + PIPE_BIND_RENDER_TARGET | + PIPE_BIND_SAMPLER_VIEW)) { + ctx->Extensions.EXT_packed_float = GL_TRUE; + } +} diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c index 4e7bef2d2..8568c68e1 100644 --- a/mesalib/src/mesa/state_tracker/st_format.c +++ b/mesalib/src/mesa/state_tracker/st_format.c @@ -1,1668 +1,1692 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * Copyright (c) 2008-2010 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. - * - **************************************************************************/ - - -/** - * Mesa / Gallium format conversion and format selection code. - * \author Brian Paul - */ - -#include "main/imports.h" -#include "main/context.h" -#include "main/texstore.h" -#include "main/image.h" -#include "main/macros.h" -#include "main/mfeatures.h" - -#include "pipe/p_context.h" -#include "pipe/p_defines.h" -#include "pipe/p_screen.h" -#include "util/u_format.h" -#include "st_context.h" -#include "st_format.h" - - -static GLuint -format_max_bits(enum pipe_format format) -{ - GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0); - - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)); - size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)); - return size; -} - - -/** - * Return basic GL datatype for the given gallium format. - */ -GLenum -st_format_datatype(enum pipe_format format) -{ - const struct util_format_description *desc; - - desc = util_format_description(format); - assert(desc); - - if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) { - if (format == PIPE_FORMAT_B5G5R5A1_UNORM || - format == PIPE_FORMAT_B5G6R5_UNORM) { - return GL_UNSIGNED_SHORT; - } - else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED || - format == PIPE_FORMAT_S8_USCALED_Z24_UNORM || - format == PIPE_FORMAT_Z24X8_UNORM || - format == PIPE_FORMAT_X8Z24_UNORM) { - return GL_UNSIGNED_INT_24_8; - } - else { - const GLuint size = format_max_bits(format); - if (size == 8) { - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_BYTE; - else - return GL_BYTE; - } - else if (size == 16) { - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_SHORT; - else - return GL_SHORT; - } - else { - assert( size <= 32 ); - if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) - return GL_UNSIGNED_INT; - else - return GL_INT; - } - } - } - else if (format == PIPE_FORMAT_UYVY) { - return GL_UNSIGNED_SHORT; - } - else if (format == PIPE_FORMAT_YUYV) { - return GL_UNSIGNED_SHORT; - } - else { - /* probably a compressed format, unsupported anyway */ - return GL_NONE; - } -} - - -/** - * Translate Mesa format to Gallium format. - */ -enum pipe_format -st_mesa_format_to_pipe_format(gl_format mesaFormat) -{ - switch (mesaFormat) { - case MESA_FORMAT_RGBA8888: - return PIPE_FORMAT_A8B8G8R8_UNORM; - case MESA_FORMAT_RGBA8888_REV: - return PIPE_FORMAT_R8G8B8A8_UNORM; - case MESA_FORMAT_ARGB8888: - return PIPE_FORMAT_B8G8R8A8_UNORM; - case MESA_FORMAT_ARGB8888_REV: - return PIPE_FORMAT_A8R8G8B8_UNORM; - case MESA_FORMAT_XRGB8888: - return PIPE_FORMAT_B8G8R8X8_UNORM; - case MESA_FORMAT_XRGB8888_REV: - return PIPE_FORMAT_X8R8G8B8_UNORM; - case MESA_FORMAT_ARGB1555: - return PIPE_FORMAT_B5G5R5A1_UNORM; - case MESA_FORMAT_ARGB4444: - return PIPE_FORMAT_B4G4R4A4_UNORM; - case MESA_FORMAT_RGB565: - return PIPE_FORMAT_B5G6R5_UNORM; - case MESA_FORMAT_RGB332: - return PIPE_FORMAT_B2G3R3_UNORM; - case MESA_FORMAT_ARGB2101010: - return PIPE_FORMAT_B10G10R10A2_UNORM; - case MESA_FORMAT_AL44: - return PIPE_FORMAT_L4A4_UNORM; - case MESA_FORMAT_AL88: - return PIPE_FORMAT_L8A8_UNORM; - case MESA_FORMAT_AL1616: - return PIPE_FORMAT_L16A16_UNORM; - case MESA_FORMAT_A8: - return PIPE_FORMAT_A8_UNORM; - case MESA_FORMAT_A16: - return PIPE_FORMAT_A16_UNORM; - case MESA_FORMAT_L8: - return PIPE_FORMAT_L8_UNORM; - case MESA_FORMAT_L16: - return PIPE_FORMAT_L16_UNORM; - case MESA_FORMAT_I8: - return PIPE_FORMAT_I8_UNORM; - case MESA_FORMAT_I16: - return PIPE_FORMAT_I16_UNORM; - case MESA_FORMAT_Z16: - return PIPE_FORMAT_Z16_UNORM; - case MESA_FORMAT_Z32: - return PIPE_FORMAT_Z32_UNORM; - case MESA_FORMAT_Z24_S8: - return PIPE_FORMAT_S8_USCALED_Z24_UNORM; - case MESA_FORMAT_S8_Z24: - return PIPE_FORMAT_Z24_UNORM_S8_USCALED; - case MESA_FORMAT_Z24_X8: - return PIPE_FORMAT_X8Z24_UNORM; - case MESA_FORMAT_X8_Z24: - return PIPE_FORMAT_Z24X8_UNORM; - case MESA_FORMAT_S8: - return PIPE_FORMAT_S8_USCALED; - case MESA_FORMAT_YCBCR: - return PIPE_FORMAT_UYVY; -#if FEATURE_texture_s3tc - case MESA_FORMAT_RGB_DXT1: - return PIPE_FORMAT_DXT1_RGB; - case MESA_FORMAT_RGBA_DXT1: - return PIPE_FORMAT_DXT1_RGBA; - case MESA_FORMAT_RGBA_DXT3: - return PIPE_FORMAT_DXT3_RGBA; - case MESA_FORMAT_RGBA_DXT5: - return PIPE_FORMAT_DXT5_RGBA; -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SRGB_DXT1: - return PIPE_FORMAT_DXT1_SRGB; - case MESA_FORMAT_SRGBA_DXT1: - return PIPE_FORMAT_DXT1_SRGBA; - case MESA_FORMAT_SRGBA_DXT3: - return PIPE_FORMAT_DXT3_SRGBA; - case MESA_FORMAT_SRGBA_DXT5: - return PIPE_FORMAT_DXT5_SRGBA; -#endif -#endif -#if FEATURE_EXT_texture_sRGB - case MESA_FORMAT_SLA8: - return PIPE_FORMAT_L8A8_SRGB; - case MESA_FORMAT_SL8: - return PIPE_FORMAT_L8_SRGB; - case MESA_FORMAT_SRGB8: - return PIPE_FORMAT_R8G8B8_SRGB; - case MESA_FORMAT_SRGBA8: - return PIPE_FORMAT_A8B8G8R8_SRGB; - case MESA_FORMAT_SARGB8: - return PIPE_FORMAT_B8G8R8A8_SRGB; -#endif - case MESA_FORMAT_RGBA_FLOAT32: - return PIPE_FORMAT_R32G32B32A32_FLOAT; - case MESA_FORMAT_RGBA_FLOAT16: - return PIPE_FORMAT_R16G16B16A16_FLOAT; - case MESA_FORMAT_RGB_FLOAT32: - return PIPE_FORMAT_R32G32B32_FLOAT; - case MESA_FORMAT_RGB_FLOAT16: - return PIPE_FORMAT_R16G16B16_FLOAT; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32: - return PIPE_FORMAT_L32A32_FLOAT; - case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: - return PIPE_FORMAT_L16A16_FLOAT; - case MESA_FORMAT_LUMINANCE_FLOAT32: - return PIPE_FORMAT_L32_FLOAT; - case MESA_FORMAT_LUMINANCE_FLOAT16: - return PIPE_FORMAT_L16_FLOAT; - case MESA_FORMAT_ALPHA_FLOAT32: - return PIPE_FORMAT_A32_FLOAT; - case MESA_FORMAT_ALPHA_FLOAT16: - return PIPE_FORMAT_A16_FLOAT; - case MESA_FORMAT_INTENSITY_FLOAT32: - return PIPE_FORMAT_I32_FLOAT; - case MESA_FORMAT_INTENSITY_FLOAT16: - return PIPE_FORMAT_I16_FLOAT; - case MESA_FORMAT_R_FLOAT32: - return PIPE_FORMAT_R32_FLOAT; - case MESA_FORMAT_R_FLOAT16: - return PIPE_FORMAT_R16_FLOAT; - case MESA_FORMAT_RG_FLOAT32: - return PIPE_FORMAT_R32G32_FLOAT; - case MESA_FORMAT_RG_FLOAT16: - return PIPE_FORMAT_R16G16_FLOAT; - - case MESA_FORMAT_R8: - return PIPE_FORMAT_R8_UNORM; - case MESA_FORMAT_R16: - return PIPE_FORMAT_R16_UNORM; - case MESA_FORMAT_RG88: - return PIPE_FORMAT_R8G8_UNORM; - case MESA_FORMAT_RG1616: - return PIPE_FORMAT_R16G16_UNORM; - case MESA_FORMAT_RGBA_16: - return PIPE_FORMAT_R16G16B16A16_UNORM; - - /* signed int formats */ - case MESA_FORMAT_RGBA_INT8: - return PIPE_FORMAT_R8G8B8A8_SSCALED; - case MESA_FORMAT_RGBA_INT16: - return PIPE_FORMAT_R16G16B16A16_SSCALED; - case MESA_FORMAT_RGBA_INT32: - return PIPE_FORMAT_R32G32B32A32_SSCALED; - - /* unsigned int formats */ - case MESA_FORMAT_RGBA_UINT8: - return PIPE_FORMAT_R8G8B8A8_USCALED; - case MESA_FORMAT_RGBA_UINT16: - return PIPE_FORMAT_R16G16B16A16_USCALED; - case MESA_FORMAT_RGBA_UINT32: - return PIPE_FORMAT_R32G32B32A32_USCALED; - - case MESA_FORMAT_RED_RGTC1: - return PIPE_FORMAT_RGTC1_UNORM; - case MESA_FORMAT_SIGNED_RED_RGTC1: - return PIPE_FORMAT_RGTC1_SNORM; - case MESA_FORMAT_RG_RGTC2: - return PIPE_FORMAT_RGTC2_UNORM; - case MESA_FORMAT_SIGNED_RG_RGTC2: - return PIPE_FORMAT_RGTC2_SNORM; - - case MESA_FORMAT_L_LATC1: - return PIPE_FORMAT_LATC1_UNORM; - case MESA_FORMAT_SIGNED_L_LATC1: - return PIPE_FORMAT_LATC1_SNORM; - case MESA_FORMAT_LA_LATC2: - return PIPE_FORMAT_LATC2_UNORM; - case MESA_FORMAT_SIGNED_LA_LATC2: - return PIPE_FORMAT_LATC2_SNORM; - - /* signed normalized formats */ - case MESA_FORMAT_SIGNED_R8: - return PIPE_FORMAT_R8_SNORM; - case MESA_FORMAT_SIGNED_RG88_REV: - return PIPE_FORMAT_R8G8_SNORM; - case MESA_FORMAT_SIGNED_RGBA8888_REV: - return PIPE_FORMAT_R8G8B8A8_SNORM; - - case MESA_FORMAT_SIGNED_A8: - return PIPE_FORMAT_A8_SNORM; - case MESA_FORMAT_SIGNED_L8: - return PIPE_FORMAT_L8_SNORM; - case MESA_FORMAT_SIGNED_AL88: - return PIPE_FORMAT_L8A8_SNORM; - case MESA_FORMAT_SIGNED_I8: - return PIPE_FORMAT_I8_SNORM; - - case MESA_FORMAT_SIGNED_R16: - return PIPE_FORMAT_R16_SNORM; - case MESA_FORMAT_SIGNED_GR1616: - return PIPE_FORMAT_R16G16_SNORM; - case MESA_FORMAT_SIGNED_RGBA_16: - return PIPE_FORMAT_R16G16B16A16_SNORM; - - case MESA_FORMAT_SIGNED_A16: - return PIPE_FORMAT_A16_SNORM; - case MESA_FORMAT_SIGNED_L16: - return PIPE_FORMAT_L16_SNORM; - case MESA_FORMAT_SIGNED_AL1616: - return PIPE_FORMAT_L16A16_SNORM; - case MESA_FORMAT_SIGNED_I16: - return PIPE_FORMAT_I16_SNORM; - - default: - assert(0); - return PIPE_FORMAT_NONE; - } -} - - -/** - * Translate Gallium format to Mesa format. - */ -gl_format -st_pipe_format_to_mesa_format(enum pipe_format format) -{ - switch (format) { - case PIPE_FORMAT_A8B8G8R8_UNORM: - return MESA_FORMAT_RGBA8888; - case PIPE_FORMAT_R8G8B8A8_UNORM: - return MESA_FORMAT_RGBA8888_REV; - case PIPE_FORMAT_B8G8R8A8_UNORM: - return MESA_FORMAT_ARGB8888; - case PIPE_FORMAT_A8R8G8B8_UNORM: - return MESA_FORMAT_ARGB8888_REV; - case PIPE_FORMAT_B8G8R8X8_UNORM: - return MESA_FORMAT_XRGB8888; - case PIPE_FORMAT_X8R8G8B8_UNORM: - return MESA_FORMAT_XRGB8888_REV; - case PIPE_FORMAT_B5G5R5A1_UNORM: - return MESA_FORMAT_ARGB1555; - case PIPE_FORMAT_B4G4R4A4_UNORM: - return MESA_FORMAT_ARGB4444; - case PIPE_FORMAT_B5G6R5_UNORM: - return MESA_FORMAT_RGB565; - case PIPE_FORMAT_B2G3R3_UNORM: - return MESA_FORMAT_RGB332; - case PIPE_FORMAT_B10G10R10A2_UNORM: - return MESA_FORMAT_ARGB2101010; - case PIPE_FORMAT_L4A4_UNORM: - return MESA_FORMAT_AL44; - case PIPE_FORMAT_L8A8_UNORM: - return MESA_FORMAT_AL88; - case PIPE_FORMAT_L16A16_UNORM: - return MESA_FORMAT_AL1616; - case PIPE_FORMAT_A8_UNORM: - return MESA_FORMAT_A8; - case PIPE_FORMAT_A16_UNORM: - return MESA_FORMAT_A16; - case PIPE_FORMAT_L8_UNORM: - return MESA_FORMAT_L8; - case PIPE_FORMAT_L16_UNORM: - return MESA_FORMAT_L16; - case PIPE_FORMAT_I8_UNORM: - return MESA_FORMAT_I8; - case PIPE_FORMAT_I16_UNORM: - return MESA_FORMAT_I16; - case PIPE_FORMAT_S8_USCALED: - return MESA_FORMAT_S8; - - case PIPE_FORMAT_R16G16B16A16_UNORM: - return MESA_FORMAT_RGBA_16; - - case PIPE_FORMAT_Z16_UNORM: - return MESA_FORMAT_Z16; - case PIPE_FORMAT_Z32_UNORM: - return MESA_FORMAT_Z32; - case PIPE_FORMAT_S8_USCALED_Z24_UNORM: - return MESA_FORMAT_Z24_S8; - case PIPE_FORMAT_X8Z24_UNORM: - return MESA_FORMAT_Z24_X8; - case PIPE_FORMAT_Z24X8_UNORM: - return MESA_FORMAT_X8_Z24; - case PIPE_FORMAT_Z24_UNORM_S8_USCALED: - return MESA_FORMAT_S8_Z24; - - case PIPE_FORMAT_UYVY: - return MESA_FORMAT_YCBCR; - case PIPE_FORMAT_YUYV: - return MESA_FORMAT_YCBCR_REV; - -#if FEATURE_texture_s3tc - case PIPE_FORMAT_DXT1_RGB: - return MESA_FORMAT_RGB_DXT1; - case PIPE_FORMAT_DXT1_RGBA: - return MESA_FORMAT_RGBA_DXT1; - case PIPE_FORMAT_DXT3_RGBA: - return MESA_FORMAT_RGBA_DXT3; - case PIPE_FORMAT_DXT5_RGBA: - return MESA_FORMAT_RGBA_DXT5; -#if FEATURE_EXT_texture_sRGB - case PIPE_FORMAT_DXT1_SRGB: - return MESA_FORMAT_SRGB_DXT1; - case PIPE_FORMAT_DXT1_SRGBA: - return MESA_FORMAT_SRGBA_DXT1; - case PIPE_FORMAT_DXT3_SRGBA: - return MESA_FORMAT_SRGBA_DXT3; - case PIPE_FORMAT_DXT5_SRGBA: - return MESA_FORMAT_SRGBA_DXT5; -#endif -#endif - -#if FEATURE_EXT_texture_sRGB - case PIPE_FORMAT_L8A8_SRGB: - return MESA_FORMAT_SLA8; - case PIPE_FORMAT_L8_SRGB: - return MESA_FORMAT_SL8; - case PIPE_FORMAT_R8G8B8_SRGB: - return MESA_FORMAT_SRGB8; - case PIPE_FORMAT_A8B8G8R8_SRGB: - return MESA_FORMAT_SRGBA8; - case PIPE_FORMAT_B8G8R8A8_SRGB: - return MESA_FORMAT_SARGB8; -#endif - case PIPE_FORMAT_R32G32B32A32_FLOAT: - return MESA_FORMAT_RGBA_FLOAT32; - case PIPE_FORMAT_R16G16B16A16_FLOAT: - return MESA_FORMAT_RGBA_FLOAT16; - case PIPE_FORMAT_R32G32B32_FLOAT: - return MESA_FORMAT_RGB_FLOAT32; - case PIPE_FORMAT_R16G16B16_FLOAT: - return MESA_FORMAT_RGB_FLOAT16; - case PIPE_FORMAT_L32A32_FLOAT: - return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; - case PIPE_FORMAT_L16A16_FLOAT: - return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; - case PIPE_FORMAT_L32_FLOAT: - return MESA_FORMAT_LUMINANCE_FLOAT32; - case PIPE_FORMAT_L16_FLOAT: - return MESA_FORMAT_LUMINANCE_FLOAT16; - case PIPE_FORMAT_A32_FLOAT: - return MESA_FORMAT_ALPHA_FLOAT32; - case PIPE_FORMAT_A16_FLOAT: - return MESA_FORMAT_ALPHA_FLOAT16; - case PIPE_FORMAT_I32_FLOAT: - return MESA_FORMAT_INTENSITY_FLOAT32; - case PIPE_FORMAT_I16_FLOAT: - return MESA_FORMAT_INTENSITY_FLOAT16; - case PIPE_FORMAT_R32_FLOAT: - return MESA_FORMAT_R_FLOAT32; - case PIPE_FORMAT_R16_FLOAT: - return MESA_FORMAT_R_FLOAT16; - case PIPE_FORMAT_R32G32_FLOAT: - return MESA_FORMAT_RG_FLOAT32; - case PIPE_FORMAT_R16G16_FLOAT: - return MESA_FORMAT_RG_FLOAT16; - - case PIPE_FORMAT_R8_UNORM: - return MESA_FORMAT_R8; - case PIPE_FORMAT_R16_UNORM: - return MESA_FORMAT_R16; - case PIPE_FORMAT_R8G8_UNORM: - return MESA_FORMAT_RG88; - case PIPE_FORMAT_R16G16_UNORM: - return MESA_FORMAT_RG1616; - - /* signed int formats */ - case PIPE_FORMAT_R8G8B8A8_SSCALED: - return MESA_FORMAT_RGBA_INT8; - case PIPE_FORMAT_R16G16B16A16_SSCALED: - return MESA_FORMAT_RGBA_INT16; - case PIPE_FORMAT_R32G32B32A32_SSCALED: - return MESA_FORMAT_RGBA_INT32; - - /* unsigned int formats */ - case PIPE_FORMAT_R8G8B8A8_USCALED: - return MESA_FORMAT_RGBA_UINT8; - case PIPE_FORMAT_R16G16B16A16_USCALED: - return MESA_FORMAT_RGBA_UINT16; - case PIPE_FORMAT_R32G32B32A32_USCALED: - return MESA_FORMAT_RGBA_UINT32; - - case PIPE_FORMAT_RGTC1_UNORM: - return MESA_FORMAT_RED_RGTC1; - case PIPE_FORMAT_RGTC1_SNORM: - return MESA_FORMAT_SIGNED_RED_RGTC1; - case PIPE_FORMAT_RGTC2_UNORM: - return MESA_FORMAT_RG_RGTC2; - case PIPE_FORMAT_RGTC2_SNORM: - return MESA_FORMAT_SIGNED_RG_RGTC2; - - case PIPE_FORMAT_LATC1_UNORM: - return MESA_FORMAT_L_LATC1; - case PIPE_FORMAT_LATC1_SNORM: - return MESA_FORMAT_SIGNED_L_LATC1; - case PIPE_FORMAT_LATC2_UNORM: - return MESA_FORMAT_LA_LATC2; - case PIPE_FORMAT_LATC2_SNORM: - return MESA_FORMAT_SIGNED_LA_LATC2; - - /* signed normalized formats */ - case PIPE_FORMAT_R8_SNORM: - return MESA_FORMAT_SIGNED_R8; - case PIPE_FORMAT_R8G8_SNORM: - return MESA_FORMAT_SIGNED_RG88_REV; - case PIPE_FORMAT_R8G8B8A8_SNORM: - return MESA_FORMAT_SIGNED_RGBA8888_REV; - - case PIPE_FORMAT_A8_SNORM: - return MESA_FORMAT_SIGNED_A8; - case PIPE_FORMAT_L8_SNORM: - return MESA_FORMAT_SIGNED_L8; - case PIPE_FORMAT_L8A8_SNORM: - return MESA_FORMAT_SIGNED_AL88; - case PIPE_FORMAT_I8_SNORM: - return MESA_FORMAT_SIGNED_I8; - - case PIPE_FORMAT_R16_SNORM: - return MESA_FORMAT_SIGNED_R16; - case PIPE_FORMAT_R16G16_SNORM: - return MESA_FORMAT_SIGNED_GR1616; - case PIPE_FORMAT_R16G16B16A16_SNORM: - return MESA_FORMAT_SIGNED_RGBA_16; - - case PIPE_FORMAT_A16_SNORM: - return MESA_FORMAT_SIGNED_A16; - case PIPE_FORMAT_L16_SNORM: - return MESA_FORMAT_SIGNED_L16; - case PIPE_FORMAT_L16A16_SNORM: - return MESA_FORMAT_SIGNED_AL1616; - case PIPE_FORMAT_I16_SNORM: - return MESA_FORMAT_SIGNED_I16; - - default: - assert(0); - return MESA_FORMAT_NONE; - } -} - - -/** - * Return first supported format from the given list. - */ -static enum pipe_format -find_supported_format(struct pipe_screen *screen, - const enum pipe_format formats[], - uint num_formats, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage) -{ - uint i; - for (i = 0; i < num_formats; i++) { - if (screen->is_format_supported(screen, formats[i], target, - sample_count, tex_usage)) { - return formats[i]; - } - } - return PIPE_FORMAT_NONE; -} - - -/** - * Find an RGBA format supported by the context/winsys. - */ -static enum pipe_format -default_rgba_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8A8_UNORM, - PIPE_FORMAT_A8R8G8B8_UNORM, - PIPE_FORMAT_A8B8G8R8_UNORM, - PIPE_FORMAT_B5G6R5_UNORM - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage); -} - - -/** - * Find an RGB format supported by the context/winsys. - */ -static enum pipe_format -default_rgb_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8X8_UNORM, - PIPE_FORMAT_X8R8G8B8_UNORM, - PIPE_FORMAT_X8B8G8R8_UNORM, - PIPE_FORMAT_B8G8R8A8_UNORM, - PIPE_FORMAT_A8R8G8B8_UNORM, - PIPE_FORMAT_A8B8G8R8_UNORM, - PIPE_FORMAT_B5G6R5_UNORM - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage); -} - -/** - * Find an sRGBA format supported by the context/winsys. - */ -static enum pipe_format -default_srgba_format(struct pipe_screen *screen, - enum pipe_texture_target target, - unsigned sample_count, - unsigned tex_usage) -{ - static const enum pipe_format colorFormats[] = { - PIPE_FORMAT_B8G8R8A8_SRGB, - PIPE_FORMAT_A8R8G8B8_SRGB, - PIPE_FORMAT_A8B8G8R8_SRGB, - }; - return find_supported_format(screen, colorFormats, Elements(colorFormats), - target, sample_count, tex_usage); -} - - -/** - * Given an OpenGL internalFormat value for a texture or surface, return - * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match. - * This is called during glTexImage2D, for example. - * - * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus - * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if - * we want render-to-texture ability. - * - * \param internalFormat the user value passed to glTexImage2D - * \param target one of PIPE_TEXTURE_x - * \param bindings bitmask of PIPE_BIND_x flags. - */ -enum pipe_format -st_choose_format(struct pipe_screen *screen, GLenum internalFormat, - enum pipe_texture_target target, unsigned sample_count, - unsigned bindings) -{ - - switch (internalFormat) { - case GL_RGB10: - case GL_RGB10_A2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B10G10R10A2_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B10G10R10A2_UNORM; - /* Pass through. */ - case 4: - case GL_RGBA: - case GL_RGBA8: - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_BGRA: - if (screen->is_format_supported( screen, PIPE_FORMAT_B8G8R8A8_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B8G8R8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case 3: - case GL_RGB: - case GL_RGB8: - return default_rgb_format( screen, target, sample_count, bindings); - - case GL_RGB12: - case GL_RGB16: - case GL_RGBA12: - case GL_RGBA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_R16G16B16A16_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_R16G16B16A16_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_RGBA4: - case GL_RGBA2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B4G4R4A4_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_RGB5_A1: - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B5G5R5A1_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_R3_G3_B2: - if (screen->is_format_supported( screen, PIPE_FORMAT_B2G3R3_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B2G3R3_UNORM; - /* Pass through. */ - case GL_RGB5: - case GL_RGB4: - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B5G6R5_UNORM; - if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_B5G5R5A1_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_ALPHA12: - case GL_ALPHA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_A16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_A16_UNORM; - /* Pass through. */ - case GL_ALPHA: - case GL_ALPHA4: - case GL_ALPHA8: - case GL_COMPRESSED_ALPHA: - if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_LUMINANCE12: - case GL_LUMINANCE16: - if (screen->is_format_supported( screen, PIPE_FORMAT_L16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L16_UNORM; - /* Pass through. */ - case 1: - case GL_LUMINANCE: - case GL_LUMINANCE4: - case GL_LUMINANCE8: - if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_LUMINANCE12_ALPHA4: - case GL_LUMINANCE12_ALPHA12: - case GL_LUMINANCE16_ALPHA16: - if (screen->is_format_supported( screen, PIPE_FORMAT_L16A16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L16A16_UNORM; - /* Pass through. */ - case 2: - case GL_LUMINANCE_ALPHA: - case GL_LUMINANCE6_ALPHA2: - case GL_LUMINANCE8_ALPHA8: - if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_LUMINANCE4_ALPHA4: - if (screen->is_format_supported( screen, PIPE_FORMAT_L4A4_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L4A4_UNORM; - if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L8A8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_INTENSITY12: - case GL_INTENSITY16: - if (screen->is_format_supported( screen, PIPE_FORMAT_I16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_I16_UNORM; - /* Pass through. */ - case GL_INTENSITY: - case GL_INTENSITY4: - case GL_INTENSITY8: - case GL_COMPRESSED_INTENSITY: - if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_I8_UNORM; - return default_rgba_format( screen, target, sample_count, bindings); - - case GL_YCBCR_MESA: - if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target, - sample_count, bindings)) { - return PIPE_FORMAT_UYVY; - } - if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target, - sample_count, bindings)) { - return PIPE_FORMAT_YUYV; - } - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGB: - /* can only sample from compressed formats */ - if (bindings & ~PIPE_BIND_SAMPLER_VIEW) - return PIPE_FORMAT_NONE; - else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT1_RGB; - else - return default_rgb_format(screen, target, sample_count, bindings); - - case GL_COMPRESSED_RGBA: - /* can only sample from compressed formats */ - if (bindings & ~PIPE_BIND_SAMPLER_VIEW) - return PIPE_FORMAT_NONE; - else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT3_RGBA; - else - return default_rgba_format(screen, target, sample_count, bindings); - - case GL_RGB_S3TC: - case GL_RGB4_S3TC: - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT1_RGB; - else - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT1_RGBA; - else - return PIPE_FORMAT_NONE; - - case GL_RGBA_S3TC: - case GL_RGBA4_S3TC: - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT3_RGBA; - else - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, - target, sample_count, bindings)) - return PIPE_FORMAT_DXT5_RGBA; - else - return PIPE_FORMAT_NONE; - -#if 0 - case GL_COMPRESSED_RGB_FXT1_3DFX: - return PIPE_FORMAT_RGB_FXT1; - case GL_COMPRESSED_RGBA_FXT1_3DFX: - return PIPE_FORMAT_RGB_FXT1; -#endif - - case GL_DEPTH_COMPONENT16: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_Z16_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT24: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, - target, sample_count, bindings)) - return PIPE_FORMAT_Z24_UNORM_S8_USCALED; - if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, - target, sample_count, bindings)) - return PIPE_FORMAT_S8_USCALED_Z24_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT32: - if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_Z32_UNORM; - /* fall-through */ - case GL_DEPTH_COMPONENT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_Z32_UNORM, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM, - PIPE_FORMAT_Z16_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_STENCIL_INDEX: - case GL_STENCIL_INDEX1_EXT: - case GL_STENCIL_INDEX4_EXT: - case GL_STENCIL_INDEX8_EXT: - case GL_STENCIL_INDEX16_EXT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_S8_USCALED, - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_DEPTH_STENCIL_EXT: - case GL_DEPTH24_STENCIL8_EXT: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_Z24_UNORM_S8_USCALED, - PIPE_FORMAT_S8_USCALED_Z24_UNORM - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_SRGB_EXT: - case GL_SRGB8_EXT: - case GL_SRGB_ALPHA_EXT: - case GL_SRGB8_ALPHA8_EXT: - return default_srgba_format( screen, target, sample_count, bindings); - - case GL_COMPRESSED_SRGB_EXT: - case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGB, target, - sample_count, bindings)) - return PIPE_FORMAT_DXT1_SRGB; - return default_srgba_format( screen, target, sample_count, bindings); - - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: - return PIPE_FORMAT_DXT1_SRGBA; - - case GL_COMPRESSED_SRGB_ALPHA_EXT: - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_SRGBA, target, - sample_count, bindings)) - return PIPE_FORMAT_DXT3_SRGBA; - return default_srgba_format( screen, target, sample_count, bindings); - - case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: - return PIPE_FORMAT_DXT5_SRGBA; - - case GL_SLUMINANCE_ALPHA_EXT: - case GL_SLUMINANCE8_ALPHA8_EXT: - case GL_COMPRESSED_SLUMINANCE_EXT: - case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target, - sample_count, bindings)) - return PIPE_FORMAT_L8A8_SRGB; - return default_srgba_format( screen, target, sample_count, bindings); - - case GL_SLUMINANCE_EXT: - case GL_SLUMINANCE8_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target, - sample_count, bindings)) - return PIPE_FORMAT_L8_SRGB; - return default_srgba_format( screen, target, sample_count, bindings); - - /* prefer formats in order of data size, choosing 16-bit ones if equal sized */ - case GL_RGBA16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_RGB16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16G16B16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_R32G32B32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_LUMINANCE_ALPHA16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_ALPHA16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_A16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_A32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_INTENSITY16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_I16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_I32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_LUMINANCE16F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_L32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_R16F: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16_FLOAT, - PIPE_FORMAT_R16G16_FLOAT, - PIPE_FORMAT_R32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_R32G32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_RG16F: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16G16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT, - PIPE_FORMAT_R32G32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - /* try a 32-bit format if available, otherwise fallback to a 16-bit one */ - case GL_RGBA32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_RGB32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R32G32B32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_LUMINANCE_ALPHA32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_ALPHA32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_A32_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_A16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_INTENSITY32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_I32_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_I16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_LUMINANCE32F_ARB: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L32_FLOAT, - PIPE_FORMAT_L32A32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_L16_FLOAT, - PIPE_FORMAT_L16A16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_R32F: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R32_FLOAT, - PIPE_FORMAT_R32G32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_R16_FLOAT, - PIPE_FORMAT_R16G16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - case GL_RG32F: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R32G32_FLOAT, - PIPE_FORMAT_R32G32B32A32_FLOAT, - PIPE_FORMAT_R16G16_FLOAT, - PIPE_FORMAT_R16G16B16A16_FLOAT - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_RED: - case GL_R8: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R8_UNORM; - return PIPE_FORMAT_NONE; - case GL_RG: - case GL_RG8: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R8G8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_R16: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R16_UNORM; - return PIPE_FORMAT_NONE; - - case GL_RG16: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R16G16_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RED: - case GL_COMPRESSED_RED_RGTC1: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_RGTC1_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_RED_RGTC1: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_RGTC1_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_RG: - case GL_COMPRESSED_RG_RGTC2: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_RGTC2_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_R8G8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_RG_RGTC2: - if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_RGTC2_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_LUMINANCE: - case GL_COMPRESSED_LUMINANCE_LATC1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_LATC1_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_LATC1_SNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_LUMINANCE_ALPHA: - case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: - case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_LATC2_UNORM; - if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_UNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_L8A8_UNORM; - return PIPE_FORMAT_NONE; - - case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: - if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, target, - sample_count, bindings)) - return PIPE_FORMAT_LATC2_SNORM; - return PIPE_FORMAT_NONE; - - /* signed/unsigned integer formats. - * XXX Mesa only has formats for RGBA signed/unsigned integer formats. - * If/when new formats are added this code should be updated. - */ - 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: - /* fall-through */ - 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: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SSCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R8G8B8A8_SSCALED; - return PIPE_FORMAT_NONE; - 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: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SSCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R16G16B16A16_SSCALED; - return PIPE_FORMAT_NONE; - 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: - /* xxx */ - if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SSCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R32G32B32A32_SSCALED; - return PIPE_FORMAT_NONE; - - 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: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_USCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R8G8B8A8_USCALED; - return PIPE_FORMAT_NONE; - - 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: - if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_USCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R16G16B16A16_USCALED; - return PIPE_FORMAT_NONE; - - 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: - if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_USCALED, - target, - sample_count, bindings)) - return PIPE_FORMAT_R32G32B32A32_USCALED; - return PIPE_FORMAT_NONE; - - /* signed normalized formats */ - case GL_RED_SNORM: - case GL_R8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R8_SNORM, - PIPE_FORMAT_R8G8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_R16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16_SNORM, - PIPE_FORMAT_R16G16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_R8_SNORM, - PIPE_FORMAT_R8G8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_RG_SNORM: - case GL_RG8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R8G8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_RG16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16G16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_R8G8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_RGB_SNORM: - case GL_RGB8_SNORM: - case GL_RGBA_SNORM: - case GL_RGBA8_SNORM: - if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, - target, - sample_count, bindings)) - return PIPE_FORMAT_R8G8B8A8_SNORM; - return PIPE_FORMAT_NONE; - - case GL_RGB16_SNORM: - case GL_RGBA16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - - case GL_ALPHA_SNORM: - case GL_ALPHA8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_A8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_ALPHA16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_A16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_A8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_LUMINANCE_SNORM: - case GL_LUMINANCE8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_LUMINANCE16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_L8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_LUMINANCE_ALPHA_SNORM: - case GL_LUMINANCE8_ALPHA8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L8A8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_LUMINANCE16_ALPHA16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_L16A16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_L8A8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_INTENSITY_SNORM: - case GL_INTENSITY8_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_I8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - case GL_INTENSITY16_SNORM: - { - static const enum pipe_format formats[] = { - PIPE_FORMAT_I16_SNORM, - PIPE_FORMAT_R16G16B16A16_SNORM, - PIPE_FORMAT_I8_SNORM, - PIPE_FORMAT_R8G8B8A8_SNORM, - }; - return find_supported_format(screen, formats, Elements(formats), - target, sample_count, bindings); - } - - default: - return PIPE_FORMAT_NONE; - } -} - - -/** - * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces. - */ -enum pipe_format -st_choose_renderbuffer_format(struct pipe_screen *screen, - GLenum internalFormat, unsigned sample_count) -{ - uint usage; - if (_mesa_is_depth_or_stencil_format(internalFormat)) - usage = PIPE_BIND_DEPTH_STENCIL; - else - usage = PIPE_BIND_RENDER_TARGET; - return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D, - sample_count, usage); -} - - -/** - * Called via ctx->Driver.chooseTextureFormat(). - */ -gl_format -st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type, GLboolean renderable) -{ - struct pipe_screen *screen = st_context(ctx)->pipe->screen; - enum pipe_format pFormat; - uint bindings; - - (void) format; - (void) type; - - /* GL textures may wind up being render targets, but we don't know - * that in advance. Specify potential render target flags now. - */ - bindings = PIPE_BIND_SAMPLER_VIEW; - if (renderable == GL_TRUE) { - if (_mesa_is_depth_format(internalFormat) || - _mesa_is_depth_or_stencil_format(internalFormat)) - bindings |= PIPE_BIND_DEPTH_STENCIL; - else - bindings |= PIPE_BIND_RENDER_TARGET; - } - - pFormat = st_choose_format(screen, internalFormat, - PIPE_TEXTURE_2D, 0, bindings); - - if (pFormat == PIPE_FORMAT_NONE) { - /* try choosing format again, this time without render target bindings */ - pFormat = st_choose_format(screen, internalFormat, - PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW); - } - - if (pFormat == PIPE_FORMAT_NONE) { - /* no luck at all */ - return MESA_FORMAT_NONE; - } - - return st_pipe_format_to_mesa_format(pFormat); -} - -gl_format -st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat, - GLenum format, GLenum type) -{ - boolean want_renderable = - internalFormat == 3 || internalFormat == 4 || - internalFormat == GL_RGB || internalFormat == GL_RGBA || - internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 || - internalFormat == GL_BGRA; - - return st_ChooseTextureFormat_renderable(ctx, internalFormat, - format, type, want_renderable); -} - -/** - * Test if a gallium format is equivalent to a GL format/type. - */ -GLboolean -st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type) -{ - switch (pFormat) { - case PIPE_FORMAT_A8B8G8R8_UNORM: - return format == GL_RGBA && type == GL_UNSIGNED_BYTE; - case PIPE_FORMAT_A8R8G8B8_UNORM: - return format == GL_BGRA && type == GL_UNSIGNED_BYTE; - case PIPE_FORMAT_B5G6R5_UNORM: - return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5; - /* XXX more combos... */ - default: - return GL_FALSE; - } -} - -GLboolean -st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2) -{ - if (format1 == format2) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM && - format2 == PIPE_FORMAT_B8G8R8X8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM && - format2 == PIPE_FORMAT_B8G8R8A8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM && - format2 == PIPE_FORMAT_X8B8G8R8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM && - format2 == PIPE_FORMAT_A8B8G8R8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM && - format2 == PIPE_FORMAT_X8R8G8B8_UNORM) - return GL_TRUE; - - if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM && - format2 == PIPE_FORMAT_A8R8G8B8_UNORM) - return GL_TRUE; - - return GL_FALSE; -} - - - -/** - * This is used for translating texture border color and the clear - * color. For example, the clear color is interpreted according to - * the renderbuffer's base format. For example, if clearing a - * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] = - * alpha. Similarly for texture border colors. - */ -void -st_translate_color(const GLfloat colorIn[4], GLenum baseFormat, - GLfloat colorOut[4]) -{ - switch (baseFormat) { - case GL_RED: - colorOut[0] = colorIn[0]; - colorOut[1] = 0.0F; - colorOut[2] = 0.0F; - colorOut[3] = 1.0F; - break; - case GL_RG: - colorOut[0] = colorIn[0]; - colorOut[1] = colorIn[1]; - colorOut[2] = 0.0F; - colorOut[3] = 1.0F; - break; - case GL_RGB: - colorOut[0] = colorIn[0]; - colorOut[1] = colorIn[1]; - colorOut[2] = colorIn[2]; - colorOut[3] = 1.0F; - break; - case GL_ALPHA: - colorOut[0] = colorOut[1] = colorOut[2] = 0.0; - colorOut[3] = colorIn[3]; - break; - case GL_LUMINANCE: - colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; - colorOut[3] = 1.0; - break; - case GL_LUMINANCE_ALPHA: - colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; - colorOut[3] = colorIn[3]; - break; - case GL_INTENSITY: - colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0]; - break; - default: - COPY_4V(colorOut, colorIn); - } -} +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright (c) 2008-2010 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + + +/** + * Mesa / Gallium format conversion and format selection code. + * \author Brian Paul + */ + +#include "main/imports.h" +#include "main/context.h" +#include "main/texstore.h" +#include "main/image.h" +#include "main/macros.h" +#include "main/mfeatures.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" +#include "util/u_format.h" +#include "st_context.h" +#include "st_format.h" + + +static GLuint +format_max_bits(enum pipe_format format) +{ + GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0); + + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0)); + size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)); + return size; +} + + +/** + * Return basic GL datatype for the given gallium format. + */ +GLenum +st_format_datatype(enum pipe_format format) +{ + const struct util_format_description *desc; + + desc = util_format_description(format); + assert(desc); + + if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) { + if (format == PIPE_FORMAT_B5G5R5A1_UNORM || + format == PIPE_FORMAT_B5G6R5_UNORM) { + return GL_UNSIGNED_SHORT; + } + else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED || + format == PIPE_FORMAT_S8_USCALED_Z24_UNORM || + format == PIPE_FORMAT_Z24X8_UNORM || + format == PIPE_FORMAT_X8Z24_UNORM) { + return GL_UNSIGNED_INT_24_8; + } + else { + const GLuint size = format_max_bits(format); + if (size == 8) { + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_BYTE; + else + return GL_BYTE; + } + else if (size == 16) { + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_SHORT; + else + return GL_SHORT; + } + else { + assert( size <= 32 ); + if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED) + return GL_UNSIGNED_INT; + else + return GL_INT; + } + } + } + else if (format == PIPE_FORMAT_UYVY) { + return GL_UNSIGNED_SHORT; + } + else if (format == PIPE_FORMAT_YUYV) { + return GL_UNSIGNED_SHORT; + } + else { + /* probably a compressed format, unsupported anyway */ + return GL_NONE; + } +} + + +/** + * Translate Mesa format to Gallium format. + */ +enum pipe_format +st_mesa_format_to_pipe_format(gl_format mesaFormat) +{ + switch (mesaFormat) { + case MESA_FORMAT_RGBA8888: + return PIPE_FORMAT_A8B8G8R8_UNORM; + case MESA_FORMAT_RGBA8888_REV: + return PIPE_FORMAT_R8G8B8A8_UNORM; + case MESA_FORMAT_ARGB8888: + return PIPE_FORMAT_B8G8R8A8_UNORM; + case MESA_FORMAT_ARGB8888_REV: + return PIPE_FORMAT_A8R8G8B8_UNORM; + case MESA_FORMAT_XRGB8888: + return PIPE_FORMAT_B8G8R8X8_UNORM; + case MESA_FORMAT_XRGB8888_REV: + return PIPE_FORMAT_X8R8G8B8_UNORM; + case MESA_FORMAT_ARGB1555: + return PIPE_FORMAT_B5G5R5A1_UNORM; + case MESA_FORMAT_ARGB4444: + return PIPE_FORMAT_B4G4R4A4_UNORM; + case MESA_FORMAT_RGB565: + return PIPE_FORMAT_B5G6R5_UNORM; + case MESA_FORMAT_RGB332: + return PIPE_FORMAT_B2G3R3_UNORM; + case MESA_FORMAT_ARGB2101010: + return PIPE_FORMAT_B10G10R10A2_UNORM; + case MESA_FORMAT_AL44: + return PIPE_FORMAT_L4A4_UNORM; + case MESA_FORMAT_AL88: + return PIPE_FORMAT_L8A8_UNORM; + case MESA_FORMAT_AL1616: + return PIPE_FORMAT_L16A16_UNORM; + case MESA_FORMAT_A8: + return PIPE_FORMAT_A8_UNORM; + case MESA_FORMAT_A16: + return PIPE_FORMAT_A16_UNORM; + case MESA_FORMAT_L8: + return PIPE_FORMAT_L8_UNORM; + case MESA_FORMAT_L16: + return PIPE_FORMAT_L16_UNORM; + case MESA_FORMAT_I8: + return PIPE_FORMAT_I8_UNORM; + case MESA_FORMAT_I16: + return PIPE_FORMAT_I16_UNORM; + case MESA_FORMAT_Z16: + return PIPE_FORMAT_Z16_UNORM; + case MESA_FORMAT_Z32: + return PIPE_FORMAT_Z32_UNORM; + case MESA_FORMAT_Z24_S8: + return PIPE_FORMAT_S8_USCALED_Z24_UNORM; + case MESA_FORMAT_S8_Z24: + return PIPE_FORMAT_Z24_UNORM_S8_USCALED; + case MESA_FORMAT_Z24_X8: + return PIPE_FORMAT_X8Z24_UNORM; + case MESA_FORMAT_X8_Z24: + return PIPE_FORMAT_Z24X8_UNORM; + case MESA_FORMAT_S8: + return PIPE_FORMAT_S8_USCALED; + case MESA_FORMAT_YCBCR: + return PIPE_FORMAT_UYVY; +#if FEATURE_texture_s3tc + case MESA_FORMAT_RGB_DXT1: + return PIPE_FORMAT_DXT1_RGB; + case MESA_FORMAT_RGBA_DXT1: + return PIPE_FORMAT_DXT1_RGBA; + case MESA_FORMAT_RGBA_DXT3: + return PIPE_FORMAT_DXT3_RGBA; + case MESA_FORMAT_RGBA_DXT5: + return PIPE_FORMAT_DXT5_RGBA; +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SRGB_DXT1: + return PIPE_FORMAT_DXT1_SRGB; + case MESA_FORMAT_SRGBA_DXT1: + return PIPE_FORMAT_DXT1_SRGBA; + case MESA_FORMAT_SRGBA_DXT3: + return PIPE_FORMAT_DXT3_SRGBA; + case MESA_FORMAT_SRGBA_DXT5: + return PIPE_FORMAT_DXT5_SRGBA; +#endif +#endif +#if FEATURE_EXT_texture_sRGB + case MESA_FORMAT_SLA8: + return PIPE_FORMAT_L8A8_SRGB; + case MESA_FORMAT_SL8: + return PIPE_FORMAT_L8_SRGB; + case MESA_FORMAT_SRGB8: + return PIPE_FORMAT_R8G8B8_SRGB; + case MESA_FORMAT_SRGBA8: + return PIPE_FORMAT_A8B8G8R8_SRGB; + case MESA_FORMAT_SARGB8: + return PIPE_FORMAT_B8G8R8A8_SRGB; +#endif + case MESA_FORMAT_RGBA_FLOAT32: + return PIPE_FORMAT_R32G32B32A32_FLOAT; + case MESA_FORMAT_RGBA_FLOAT16: + return PIPE_FORMAT_R16G16B16A16_FLOAT; + case MESA_FORMAT_RGB_FLOAT32: + return PIPE_FORMAT_R32G32B32_FLOAT; + case MESA_FORMAT_RGB_FLOAT16: + return PIPE_FORMAT_R16G16B16_FLOAT; + case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32: + return PIPE_FORMAT_L32A32_FLOAT; + case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16: + return PIPE_FORMAT_L16A16_FLOAT; + case MESA_FORMAT_LUMINANCE_FLOAT32: + return PIPE_FORMAT_L32_FLOAT; + case MESA_FORMAT_LUMINANCE_FLOAT16: + return PIPE_FORMAT_L16_FLOAT; + case MESA_FORMAT_ALPHA_FLOAT32: + return PIPE_FORMAT_A32_FLOAT; + case MESA_FORMAT_ALPHA_FLOAT16: + return PIPE_FORMAT_A16_FLOAT; + case MESA_FORMAT_INTENSITY_FLOAT32: + return PIPE_FORMAT_I32_FLOAT; + case MESA_FORMAT_INTENSITY_FLOAT16: + return PIPE_FORMAT_I16_FLOAT; + case MESA_FORMAT_R_FLOAT32: + return PIPE_FORMAT_R32_FLOAT; + case MESA_FORMAT_R_FLOAT16: + return PIPE_FORMAT_R16_FLOAT; + case MESA_FORMAT_RG_FLOAT32: + return PIPE_FORMAT_R32G32_FLOAT; + case MESA_FORMAT_RG_FLOAT16: + return PIPE_FORMAT_R16G16_FLOAT; + + case MESA_FORMAT_R8: + return PIPE_FORMAT_R8_UNORM; + case MESA_FORMAT_R16: + return PIPE_FORMAT_R16_UNORM; + case MESA_FORMAT_RG88: + return PIPE_FORMAT_R8G8_UNORM; + case MESA_FORMAT_RG1616: + return PIPE_FORMAT_R16G16_UNORM; + case MESA_FORMAT_RGBA_16: + return PIPE_FORMAT_R16G16B16A16_UNORM; + + /* signed int formats */ + case MESA_FORMAT_RGBA_INT8: + return PIPE_FORMAT_R8G8B8A8_SSCALED; + case MESA_FORMAT_RGBA_INT16: + return PIPE_FORMAT_R16G16B16A16_SSCALED; + case MESA_FORMAT_RGBA_INT32: + return PIPE_FORMAT_R32G32B32A32_SSCALED; + + /* unsigned int formats */ + case MESA_FORMAT_RGBA_UINT8: + return PIPE_FORMAT_R8G8B8A8_USCALED; + case MESA_FORMAT_RGBA_UINT16: + return PIPE_FORMAT_R16G16B16A16_USCALED; + case MESA_FORMAT_RGBA_UINT32: + return PIPE_FORMAT_R32G32B32A32_USCALED; + + case MESA_FORMAT_RED_RGTC1: + return PIPE_FORMAT_RGTC1_UNORM; + case MESA_FORMAT_SIGNED_RED_RGTC1: + return PIPE_FORMAT_RGTC1_SNORM; + case MESA_FORMAT_RG_RGTC2: + return PIPE_FORMAT_RGTC2_UNORM; + case MESA_FORMAT_SIGNED_RG_RGTC2: + return PIPE_FORMAT_RGTC2_SNORM; + + case MESA_FORMAT_L_LATC1: + return PIPE_FORMAT_LATC1_UNORM; + case MESA_FORMAT_SIGNED_L_LATC1: + return PIPE_FORMAT_LATC1_SNORM; + case MESA_FORMAT_LA_LATC2: + return PIPE_FORMAT_LATC2_UNORM; + case MESA_FORMAT_SIGNED_LA_LATC2: + return PIPE_FORMAT_LATC2_SNORM; + + /* signed normalized formats */ + case MESA_FORMAT_SIGNED_R8: + return PIPE_FORMAT_R8_SNORM; + case MESA_FORMAT_SIGNED_RG88_REV: + return PIPE_FORMAT_R8G8_SNORM; + case MESA_FORMAT_SIGNED_RGBA8888_REV: + return PIPE_FORMAT_R8G8B8A8_SNORM; + + case MESA_FORMAT_SIGNED_A8: + return PIPE_FORMAT_A8_SNORM; + case MESA_FORMAT_SIGNED_L8: + return PIPE_FORMAT_L8_SNORM; + case MESA_FORMAT_SIGNED_AL88: + return PIPE_FORMAT_L8A8_SNORM; + case MESA_FORMAT_SIGNED_I8: + return PIPE_FORMAT_I8_SNORM; + + case MESA_FORMAT_SIGNED_R16: + return PIPE_FORMAT_R16_SNORM; + case MESA_FORMAT_SIGNED_GR1616: + return PIPE_FORMAT_R16G16_SNORM; + case MESA_FORMAT_SIGNED_RGBA_16: + return PIPE_FORMAT_R16G16B16A16_SNORM; + + case MESA_FORMAT_SIGNED_A16: + return PIPE_FORMAT_A16_SNORM; + case MESA_FORMAT_SIGNED_L16: + return PIPE_FORMAT_L16_SNORM; + case MESA_FORMAT_SIGNED_AL1616: + return PIPE_FORMAT_L16A16_SNORM; + case MESA_FORMAT_SIGNED_I16: + return PIPE_FORMAT_I16_SNORM; + + case MESA_FORMAT_RGB9_E5_FLOAT: + return PIPE_FORMAT_R9G9B9E5_FLOAT; + case MESA_FORMAT_R11_G11_B10_FLOAT: + return PIPE_FORMAT_R11G11B10_FLOAT; + + default: + assert(0); + return PIPE_FORMAT_NONE; + } +} + + +/** + * Translate Gallium format to Mesa format. + */ +gl_format +st_pipe_format_to_mesa_format(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_A8B8G8R8_UNORM: + return MESA_FORMAT_RGBA8888; + case PIPE_FORMAT_R8G8B8A8_UNORM: + return MESA_FORMAT_RGBA8888_REV; + case PIPE_FORMAT_B8G8R8A8_UNORM: + return MESA_FORMAT_ARGB8888; + case PIPE_FORMAT_A8R8G8B8_UNORM: + return MESA_FORMAT_ARGB8888_REV; + case PIPE_FORMAT_B8G8R8X8_UNORM: + return MESA_FORMAT_XRGB8888; + case PIPE_FORMAT_X8R8G8B8_UNORM: + return MESA_FORMAT_XRGB8888_REV; + case PIPE_FORMAT_B5G5R5A1_UNORM: + return MESA_FORMAT_ARGB1555; + case PIPE_FORMAT_B4G4R4A4_UNORM: + return MESA_FORMAT_ARGB4444; + case PIPE_FORMAT_B5G6R5_UNORM: + return MESA_FORMAT_RGB565; + case PIPE_FORMAT_B2G3R3_UNORM: + return MESA_FORMAT_RGB332; + case PIPE_FORMAT_B10G10R10A2_UNORM: + return MESA_FORMAT_ARGB2101010; + case PIPE_FORMAT_L4A4_UNORM: + return MESA_FORMAT_AL44; + case PIPE_FORMAT_L8A8_UNORM: + return MESA_FORMAT_AL88; + case PIPE_FORMAT_L16A16_UNORM: + return MESA_FORMAT_AL1616; + case PIPE_FORMAT_A8_UNORM: + return MESA_FORMAT_A8; + case PIPE_FORMAT_A16_UNORM: + return MESA_FORMAT_A16; + case PIPE_FORMAT_L8_UNORM: + return MESA_FORMAT_L8; + case PIPE_FORMAT_L16_UNORM: + return MESA_FORMAT_L16; + case PIPE_FORMAT_I8_UNORM: + return MESA_FORMAT_I8; + case PIPE_FORMAT_I16_UNORM: + return MESA_FORMAT_I16; + case PIPE_FORMAT_S8_USCALED: + return MESA_FORMAT_S8; + + case PIPE_FORMAT_R16G16B16A16_UNORM: + return MESA_FORMAT_RGBA_16; + + case PIPE_FORMAT_Z16_UNORM: + return MESA_FORMAT_Z16; + case PIPE_FORMAT_Z32_UNORM: + return MESA_FORMAT_Z32; + case PIPE_FORMAT_S8_USCALED_Z24_UNORM: + return MESA_FORMAT_Z24_S8; + case PIPE_FORMAT_X8Z24_UNORM: + return MESA_FORMAT_Z24_X8; + case PIPE_FORMAT_Z24X8_UNORM: + return MESA_FORMAT_X8_Z24; + case PIPE_FORMAT_Z24_UNORM_S8_USCALED: + return MESA_FORMAT_S8_Z24; + + case PIPE_FORMAT_UYVY: + return MESA_FORMAT_YCBCR; + case PIPE_FORMAT_YUYV: + return MESA_FORMAT_YCBCR_REV; + +#if FEATURE_texture_s3tc + case PIPE_FORMAT_DXT1_RGB: + return MESA_FORMAT_RGB_DXT1; + case PIPE_FORMAT_DXT1_RGBA: + return MESA_FORMAT_RGBA_DXT1; + case PIPE_FORMAT_DXT3_RGBA: + return MESA_FORMAT_RGBA_DXT3; + case PIPE_FORMAT_DXT5_RGBA: + return MESA_FORMAT_RGBA_DXT5; +#if FEATURE_EXT_texture_sRGB + case PIPE_FORMAT_DXT1_SRGB: + return MESA_FORMAT_SRGB_DXT1; + case PIPE_FORMAT_DXT1_SRGBA: + return MESA_FORMAT_SRGBA_DXT1; + case PIPE_FORMAT_DXT3_SRGBA: + return MESA_FORMAT_SRGBA_DXT3; + case PIPE_FORMAT_DXT5_SRGBA: + return MESA_FORMAT_SRGBA_DXT5; +#endif +#endif + +#if FEATURE_EXT_texture_sRGB + case PIPE_FORMAT_L8A8_SRGB: + return MESA_FORMAT_SLA8; + case PIPE_FORMAT_L8_SRGB: + return MESA_FORMAT_SL8; + case PIPE_FORMAT_R8G8B8_SRGB: + return MESA_FORMAT_SRGB8; + case PIPE_FORMAT_A8B8G8R8_SRGB: + return MESA_FORMAT_SRGBA8; + case PIPE_FORMAT_B8G8R8A8_SRGB: + return MESA_FORMAT_SARGB8; +#endif + case PIPE_FORMAT_R32G32B32A32_FLOAT: + return MESA_FORMAT_RGBA_FLOAT32; + case PIPE_FORMAT_R16G16B16A16_FLOAT: + return MESA_FORMAT_RGBA_FLOAT16; + case PIPE_FORMAT_R32G32B32_FLOAT: + return MESA_FORMAT_RGB_FLOAT32; + case PIPE_FORMAT_R16G16B16_FLOAT: + return MESA_FORMAT_RGB_FLOAT16; + case PIPE_FORMAT_L32A32_FLOAT: + return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; + case PIPE_FORMAT_L16A16_FLOAT: + return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; + case PIPE_FORMAT_L32_FLOAT: + return MESA_FORMAT_LUMINANCE_FLOAT32; + case PIPE_FORMAT_L16_FLOAT: + return MESA_FORMAT_LUMINANCE_FLOAT16; + case PIPE_FORMAT_A32_FLOAT: + return MESA_FORMAT_ALPHA_FLOAT32; + case PIPE_FORMAT_A16_FLOAT: + return MESA_FORMAT_ALPHA_FLOAT16; + case PIPE_FORMAT_I32_FLOAT: + return MESA_FORMAT_INTENSITY_FLOAT32; + case PIPE_FORMAT_I16_FLOAT: + return MESA_FORMAT_INTENSITY_FLOAT16; + case PIPE_FORMAT_R32_FLOAT: + return MESA_FORMAT_R_FLOAT32; + case PIPE_FORMAT_R16_FLOAT: + return MESA_FORMAT_R_FLOAT16; + case PIPE_FORMAT_R32G32_FLOAT: + return MESA_FORMAT_RG_FLOAT32; + case PIPE_FORMAT_R16G16_FLOAT: + return MESA_FORMAT_RG_FLOAT16; + + case PIPE_FORMAT_R8_UNORM: + return MESA_FORMAT_R8; + case PIPE_FORMAT_R16_UNORM: + return MESA_FORMAT_R16; + case PIPE_FORMAT_R8G8_UNORM: + return MESA_FORMAT_RG88; + case PIPE_FORMAT_R16G16_UNORM: + return MESA_FORMAT_RG1616; + + /* signed int formats */ + case PIPE_FORMAT_R8G8B8A8_SSCALED: + return MESA_FORMAT_RGBA_INT8; + case PIPE_FORMAT_R16G16B16A16_SSCALED: + return MESA_FORMAT_RGBA_INT16; + case PIPE_FORMAT_R32G32B32A32_SSCALED: + return MESA_FORMAT_RGBA_INT32; + + /* unsigned int formats */ + case PIPE_FORMAT_R8G8B8A8_USCALED: + return MESA_FORMAT_RGBA_UINT8; + case PIPE_FORMAT_R16G16B16A16_USCALED: + return MESA_FORMAT_RGBA_UINT16; + case PIPE_FORMAT_R32G32B32A32_USCALED: + return MESA_FORMAT_RGBA_UINT32; + + case PIPE_FORMAT_RGTC1_UNORM: + return MESA_FORMAT_RED_RGTC1; + case PIPE_FORMAT_RGTC1_SNORM: + return MESA_FORMAT_SIGNED_RED_RGTC1; + case PIPE_FORMAT_RGTC2_UNORM: + return MESA_FORMAT_RG_RGTC2; + case PIPE_FORMAT_RGTC2_SNORM: + return MESA_FORMAT_SIGNED_RG_RGTC2; + + case PIPE_FORMAT_LATC1_UNORM: + return MESA_FORMAT_L_LATC1; + case PIPE_FORMAT_LATC1_SNORM: + return MESA_FORMAT_SIGNED_L_LATC1; + case PIPE_FORMAT_LATC2_UNORM: + return MESA_FORMAT_LA_LATC2; + case PIPE_FORMAT_LATC2_SNORM: + return MESA_FORMAT_SIGNED_LA_LATC2; + + /* signed normalized formats */ + case PIPE_FORMAT_R8_SNORM: + return MESA_FORMAT_SIGNED_R8; + case PIPE_FORMAT_R8G8_SNORM: + return MESA_FORMAT_SIGNED_RG88_REV; + case PIPE_FORMAT_R8G8B8A8_SNORM: + return MESA_FORMAT_SIGNED_RGBA8888_REV; + + case PIPE_FORMAT_A8_SNORM: + return MESA_FORMAT_SIGNED_A8; + case PIPE_FORMAT_L8_SNORM: + return MESA_FORMAT_SIGNED_L8; + case PIPE_FORMAT_L8A8_SNORM: + return MESA_FORMAT_SIGNED_AL88; + case PIPE_FORMAT_I8_SNORM: + return MESA_FORMAT_SIGNED_I8; + + case PIPE_FORMAT_R16_SNORM: + return MESA_FORMAT_SIGNED_R16; + case PIPE_FORMAT_R16G16_SNORM: + return MESA_FORMAT_SIGNED_GR1616; + case PIPE_FORMAT_R16G16B16A16_SNORM: + return MESA_FORMAT_SIGNED_RGBA_16; + + case PIPE_FORMAT_A16_SNORM: + return MESA_FORMAT_SIGNED_A16; + case PIPE_FORMAT_L16_SNORM: + return MESA_FORMAT_SIGNED_L16; + case PIPE_FORMAT_L16A16_SNORM: + return MESA_FORMAT_SIGNED_AL1616; + case PIPE_FORMAT_I16_SNORM: + return MESA_FORMAT_SIGNED_I16; + + case PIPE_FORMAT_R9G9B9E5_FLOAT: + return MESA_FORMAT_RGB9_E5_FLOAT; + case PIPE_FORMAT_R11G11B10_FLOAT: + return MESA_FORMAT_R11_G11_B10_FLOAT; + + default: + assert(0); + return MESA_FORMAT_NONE; + } +} + + +/** + * Return first supported format from the given list. + */ +static enum pipe_format +find_supported_format(struct pipe_screen *screen, + const enum pipe_format formats[], + uint num_formats, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + uint i; + for (i = 0; i < num_formats; i++) { + if (screen->is_format_supported(screen, formats[i], target, + sample_count, tex_usage)) { + return formats[i]; + } + } + return PIPE_FORMAT_NONE; +} + + +/** + * Find an RGBA format supported by the context/winsys. + */ +static enum pipe_format +default_rgba_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_A8B8G8R8_UNORM, + PIPE_FORMAT_B5G6R5_UNORM + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + + +/** + * Find an RGB format supported by the context/winsys. + */ +static enum pipe_format +default_rgb_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8X8_UNORM, + PIPE_FORMAT_X8R8G8B8_UNORM, + PIPE_FORMAT_X8B8G8R8_UNORM, + PIPE_FORMAT_B8G8R8A8_UNORM, + PIPE_FORMAT_A8R8G8B8_UNORM, + PIPE_FORMAT_A8B8G8R8_UNORM, + PIPE_FORMAT_B5G6R5_UNORM + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + +/** + * Find an sRGBA format supported by the context/winsys. + */ +static enum pipe_format +default_srgba_format(struct pipe_screen *screen, + enum pipe_texture_target target, + unsigned sample_count, + unsigned tex_usage) +{ + static const enum pipe_format colorFormats[] = { + PIPE_FORMAT_B8G8R8A8_SRGB, + PIPE_FORMAT_A8R8G8B8_SRGB, + PIPE_FORMAT_A8B8G8R8_SRGB, + }; + return find_supported_format(screen, colorFormats, Elements(colorFormats), + target, sample_count, tex_usage); +} + + +/** + * Given an OpenGL internalFormat value for a texture or surface, return + * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match. + * This is called during glTexImage2D, for example. + * + * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus + * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if + * we want render-to-texture ability. + * + * \param internalFormat the user value passed to glTexImage2D + * \param target one of PIPE_TEXTURE_x + * \param bindings bitmask of PIPE_BIND_x flags. + */ +enum pipe_format +st_choose_format(struct pipe_screen *screen, GLenum internalFormat, + enum pipe_texture_target target, unsigned sample_count, + unsigned bindings) +{ + + switch (internalFormat) { + case GL_RGB10: + case GL_RGB10_A2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B10G10R10A2_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B10G10R10A2_UNORM; + /* Pass through. */ + case 4: + case GL_RGBA: + case GL_RGBA8: + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_BGRA: + if (screen->is_format_supported( screen, PIPE_FORMAT_B8G8R8A8_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B8G8R8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case 3: + case GL_RGB: + case GL_RGB8: + return default_rgb_format( screen, target, sample_count, bindings); + + case GL_RGB12: + case GL_RGB16: + case GL_RGBA12: + case GL_RGBA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_R16G16B16A16_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_RGBA4: + case GL_RGBA2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B4G4R4A4_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_RGB5_A1: + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G5R5A1_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_R3_G3_B2: + if (screen->is_format_supported( screen, PIPE_FORMAT_B2G3R3_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B2G3R3_UNORM; + /* Pass through. */ + case GL_RGB5: + case GL_RGB4: + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G6R5_UNORM; + if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_B5G5R5A1_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_ALPHA12: + case GL_ALPHA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_A16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_A16_UNORM; + /* Pass through. */ + case GL_ALPHA: + case GL_ALPHA4: + case GL_ALPHA8: + case GL_COMPRESSED_ALPHA: + if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE12: + case GL_LUMINANCE16: + if (screen->is_format_supported( screen, PIPE_FORMAT_L16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L16_UNORM; + /* Pass through. */ + case 1: + case GL_LUMINANCE: + case GL_LUMINANCE4: + case GL_LUMINANCE8: + if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE12_ALPHA4: + case GL_LUMINANCE12_ALPHA12: + case GL_LUMINANCE16_ALPHA16: + if (screen->is_format_supported( screen, PIPE_FORMAT_L16A16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L16A16_UNORM; + /* Pass through. */ + case 2: + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE6_ALPHA2: + case GL_LUMINANCE8_ALPHA8: + if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_LUMINANCE4_ALPHA4: + if (screen->is_format_supported( screen, PIPE_FORMAT_L4A4_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L4A4_UNORM; + if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_INTENSITY12: + case GL_INTENSITY16: + if (screen->is_format_supported( screen, PIPE_FORMAT_I16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_I16_UNORM; + /* Pass through. */ + case GL_INTENSITY: + case GL_INTENSITY4: + case GL_INTENSITY8: + case GL_COMPRESSED_INTENSITY: + if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_I8_UNORM; + return default_rgba_format( screen, target, sample_count, bindings); + + case GL_YCBCR_MESA: + if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target, + sample_count, bindings)) { + return PIPE_FORMAT_UYVY; + } + if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target, + sample_count, bindings)) { + return PIPE_FORMAT_YUYV; + } + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGB: + /* can only sample from compressed formats */ + if (bindings & ~PIPE_BIND_SAMPLER_VIEW) + return PIPE_FORMAT_NONE; + else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGB; + else + return default_rgb_format(screen, target, sample_count, bindings); + + case GL_COMPRESSED_RGBA: + /* can only sample from compressed formats */ + if (bindings & ~PIPE_BIND_SAMPLER_VIEW) + return PIPE_FORMAT_NONE; + else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT3_RGBA; + else + return default_rgba_format(screen, target, sample_count, bindings); + + case GL_RGB_S3TC: + case GL_RGB4_S3TC: + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGB; + else + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT1_RGBA; + else + return PIPE_FORMAT_NONE; + + case GL_RGBA_S3TC: + case GL_RGBA4_S3TC: + case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT3_RGBA; + else + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, + target, sample_count, bindings)) + return PIPE_FORMAT_DXT5_RGBA; + else + return PIPE_FORMAT_NONE; + +#if 0 + case GL_COMPRESSED_RGB_FXT1_3DFX: + return PIPE_FORMAT_RGB_FXT1; + case GL_COMPRESSED_RGBA_FXT1_3DFX: + return PIPE_FORMAT_RGB_FXT1; +#endif + + case GL_DEPTH_COMPONENT16: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_Z16_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT24: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED, + target, sample_count, bindings)) + return PIPE_FORMAT_Z24_UNORM_S8_USCALED; + if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM, + target, sample_count, bindings)) + return PIPE_FORMAT_S8_USCALED_Z24_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT32: + if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_Z32_UNORM; + /* fall-through */ + case GL_DEPTH_COMPONENT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_Z32_UNORM, + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM, + PIPE_FORMAT_Z16_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_STENCIL_INDEX: + case GL_STENCIL_INDEX1_EXT: + case GL_STENCIL_INDEX4_EXT: + case GL_STENCIL_INDEX8_EXT: + case GL_STENCIL_INDEX16_EXT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_S8_USCALED, + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_Z24_UNORM_S8_USCALED, + PIPE_FORMAT_S8_USCALED_Z24_UNORM + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_SRGB_EXT: + case GL_SRGB8_EXT: + case GL_SRGB_ALPHA_EXT: + case GL_SRGB8_ALPHA8_EXT: + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_EXT: + case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_DXT1_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + return PIPE_FORMAT_DXT1_SRGBA; + + case GL_COMPRESSED_SRGB_ALPHA_EXT: + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_SRGBA, target, + sample_count, bindings)) + return PIPE_FORMAT_DXT3_SRGBA; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + return PIPE_FORMAT_DXT5_SRGBA; + + case GL_SLUMINANCE_ALPHA_EXT: + case GL_SLUMINANCE8_ALPHA8_EXT: + case GL_COMPRESSED_SLUMINANCE_EXT: + case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + case GL_SLUMINANCE_EXT: + case GL_SLUMINANCE8_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_SRGB; + return default_srgba_format( screen, target, sample_count, bindings); + + /* prefer formats in order of data size, choosing 16-bit ones if equal sized */ + case GL_RGBA16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_RGB16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16G16B16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_R32G32B32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_LUMINANCE_ALPHA16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_ALPHA16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_A16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_A32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_INTENSITY16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_I16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_I32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_LUMINANCE16F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_L32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_R16F: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16_FLOAT, + PIPE_FORMAT_R16G16_FLOAT, + PIPE_FORMAT_R32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_R32G32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_RG16F: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16G16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT, + PIPE_FORMAT_R32G32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + /* try a 32-bit format if available, otherwise fallback to a 16-bit one */ + case GL_RGBA32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_RGB32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R32G32B32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_LUMINANCE_ALPHA32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_ALPHA32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_A32_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_A16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_INTENSITY32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_I32_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_I16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_LUMINANCE32F_ARB: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L32_FLOAT, + PIPE_FORMAT_L32A32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_L16_FLOAT, + PIPE_FORMAT_L16A16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_R32F: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R32_FLOAT, + PIPE_FORMAT_R32G32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_R16_FLOAT, + PIPE_FORMAT_R16G16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + case GL_RG32F: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R32G32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT, + PIPE_FORMAT_R16G16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_RED: + case GL_R8: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8_UNORM; + return PIPE_FORMAT_NONE; + case GL_RG: + case GL_RG8: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_R16: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R16_UNORM; + return PIPE_FORMAT_NONE; + + case GL_RG16: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RED: + case GL_COMPRESSED_RED_RGTC1: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC1_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_RED_RGTC1: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC1_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_RG: + case GL_COMPRESSED_RG_RGTC2: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC2_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_RG_RGTC2: + if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_RGTC2_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_LUMINANCE: + case GL_COMPRESSED_LUMINANCE_LATC1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC1_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC1_SNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_LUMINANCE_ALPHA: + case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: + case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC2_UNORM; + if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_UNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_L8A8_UNORM; + return PIPE_FORMAT_NONE; + + case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: + if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, target, + sample_count, bindings)) + return PIPE_FORMAT_LATC2_SNORM; + return PIPE_FORMAT_NONE; + + /* signed/unsigned integer formats. + * XXX Mesa only has formats for RGBA signed/unsigned integer formats. + * If/when new formats are added this code should be updated. + */ + 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: + /* fall-through */ + 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: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8B8A8_SSCALED; + return PIPE_FORMAT_NONE; + 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: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_SSCALED; + return PIPE_FORMAT_NONE; + 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: + /* xxx */ + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SSCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R32G32B32A32_SSCALED; + return PIPE_FORMAT_NONE; + + 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: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8B8A8_USCALED; + return PIPE_FORMAT_NONE; + + 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: + if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R16G16B16A16_USCALED; + return PIPE_FORMAT_NONE; + + 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: + if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_USCALED, + target, + sample_count, bindings)) + return PIPE_FORMAT_R32G32B32A32_USCALED; + return PIPE_FORMAT_NONE; + + /* signed normalized formats */ + case GL_RED_SNORM: + case GL_R8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R8_SNORM, + PIPE_FORMAT_R8G8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_R16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16_SNORM, + PIPE_FORMAT_R16G16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_R8_SNORM, + PIPE_FORMAT_R8G8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_RG_SNORM: + case GL_RG8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R8G8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_RG16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16G16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_R8G8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_RGB_SNORM: + case GL_RGB8_SNORM: + case GL_RGBA_SNORM: + case GL_RGBA8_SNORM: + if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM, + target, + sample_count, bindings)) + return PIPE_FORMAT_R8G8B8A8_SNORM; + return PIPE_FORMAT_NONE; + + case GL_RGB16_SNORM: + case GL_RGBA16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + + case GL_ALPHA_SNORM: + case GL_ALPHA8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_A8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_ALPHA16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_A16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_A8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_LUMINANCE_SNORM: + case GL_LUMINANCE8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_LUMINANCE16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_L8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_LUMINANCE_ALPHA_SNORM: + case GL_LUMINANCE8_ALPHA8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L8A8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_LUMINANCE16_ALPHA16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_L16A16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_L8A8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_INTENSITY_SNORM: + case GL_INTENSITY8_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_I8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_INTENSITY16_SNORM: + { + static const enum pipe_format formats[] = { + PIPE_FORMAT_I16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM, + PIPE_FORMAT_I8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM, + }; + return find_supported_format(screen, formats, Elements(formats), + target, sample_count, bindings); + } + + case GL_RGB9_E5: + if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, target, + sample_count, bindings)) { + return PIPE_FORMAT_R9G9B9E5_FLOAT; + } + return PIPE_FORMAT_NONE; + + case GL_R11F_G11F_B10F: + if (screen->is_format_supported(screen, PIPE_FORMAT_R11G11B10_FLOAT, target, + sample_count, bindings)) { + return PIPE_FORMAT_R11G11B10_FLOAT; + } + return PIPE_FORMAT_NONE; + + default: + return PIPE_FORMAT_NONE; + } +} + + +/** + * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces. + */ +enum pipe_format +st_choose_renderbuffer_format(struct pipe_screen *screen, + GLenum internalFormat, unsigned sample_count) +{ + uint usage; + if (_mesa_is_depth_or_stencil_format(internalFormat)) + usage = PIPE_BIND_DEPTH_STENCIL; + else + usage = PIPE_BIND_RENDER_TARGET; + return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D, + sample_count, usage); +} + + +/** + * Called via ctx->Driver.chooseTextureFormat(). + */ +gl_format +st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat, + GLenum format, GLenum type, GLboolean renderable) +{ + struct pipe_screen *screen = st_context(ctx)->pipe->screen; + enum pipe_format pFormat; + uint bindings; + + (void) format; + (void) type; + + /* GL textures may wind up being render targets, but we don't know + * that in advance. Specify potential render target flags now. + */ + bindings = PIPE_BIND_SAMPLER_VIEW; + if (renderable == GL_TRUE) { + if (_mesa_is_depth_format(internalFormat) || + _mesa_is_depth_or_stencil_format(internalFormat)) + bindings |= PIPE_BIND_DEPTH_STENCIL; + else + bindings |= PIPE_BIND_RENDER_TARGET; + } + + pFormat = st_choose_format(screen, internalFormat, + PIPE_TEXTURE_2D, 0, bindings); + + if (pFormat == PIPE_FORMAT_NONE) { + /* try choosing format again, this time without render target bindings */ + pFormat = st_choose_format(screen, internalFormat, + PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW); + } + + if (pFormat == PIPE_FORMAT_NONE) { + /* no luck at all */ + return MESA_FORMAT_NONE; + } + + return st_pipe_format_to_mesa_format(pFormat); +} + +gl_format +st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat, + GLenum format, GLenum type) +{ + boolean want_renderable = + internalFormat == 3 || internalFormat == 4 || + internalFormat == GL_RGB || internalFormat == GL_RGBA || + internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 || + internalFormat == GL_BGRA; + + return st_ChooseTextureFormat_renderable(ctx, internalFormat, + format, type, want_renderable); +} + +/** + * Test if a gallium format is equivalent to a GL format/type. + */ +GLboolean +st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type) +{ + switch (pFormat) { + case PIPE_FORMAT_A8B8G8R8_UNORM: + return format == GL_RGBA && type == GL_UNSIGNED_BYTE; + case PIPE_FORMAT_A8R8G8B8_UNORM: + return format == GL_BGRA && type == GL_UNSIGNED_BYTE; + case PIPE_FORMAT_B5G6R5_UNORM: + return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5; + /* XXX more combos... */ + default: + return GL_FALSE; + } +} + +GLboolean +st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2) +{ + if (format1 == format2) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM && + format2 == PIPE_FORMAT_B8G8R8X8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM && + format2 == PIPE_FORMAT_B8G8R8A8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM && + format2 == PIPE_FORMAT_X8B8G8R8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM && + format2 == PIPE_FORMAT_A8B8G8R8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM && + format2 == PIPE_FORMAT_X8R8G8B8_UNORM) + return GL_TRUE; + + if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM && + format2 == PIPE_FORMAT_A8R8G8B8_UNORM) + return GL_TRUE; + + return GL_FALSE; +} + + + +/** + * This is used for translating texture border color and the clear + * color. For example, the clear color is interpreted according to + * the renderbuffer's base format. For example, if clearing a + * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] = + * alpha. Similarly for texture border colors. + */ +void +st_translate_color(const GLfloat colorIn[4], GLenum baseFormat, + GLfloat colorOut[4]) +{ + switch (baseFormat) { + case GL_RED: + colorOut[0] = colorIn[0]; + colorOut[1] = 0.0F; + colorOut[2] = 0.0F; + colorOut[3] = 1.0F; + break; + case GL_RG: + colorOut[0] = colorIn[0]; + colorOut[1] = colorIn[1]; + colorOut[2] = 0.0F; + colorOut[3] = 1.0F; + break; + case GL_RGB: + colorOut[0] = colorIn[0]; + colorOut[1] = colorIn[1]; + colorOut[2] = colorIn[2]; + colorOut[3] = 1.0F; + break; + case GL_ALPHA: + colorOut[0] = colorOut[1] = colorOut[2] = 0.0; + colorOut[3] = colorIn[3]; + break; + case GL_LUMINANCE: + colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; + colorOut[3] = 1.0; + break; + case GL_LUMINANCE_ALPHA: + colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0]; + colorOut[3] = colorIn[3]; + break; + case GL_INTENSITY: + colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0]; + break; + default: + COPY_4V(colorOut, colorIn); + } +} -- cgit v1.2.3