diff options
Diffstat (limited to 'mesalib/src/mesa/tnl')
| -rw-r--r-- | mesalib/src/mesa/tnl/t_context.c | 440 | ||||
| -rw-r--r-- | mesalib/src/mesa/tnl/t_draw.c | 1096 |
2 files changed, 768 insertions, 768 deletions
diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c index aaa564fae..a6da8cafe 100644 --- a/mesalib/src/mesa/tnl/t_context.c +++ b/mesalib/src/mesa/tnl/t_context.c @@ -1,220 +1,220 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.2
- *
- * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-
-#include "main/glheader.h"
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/macros.h"
-#include "main/mtypes.h"
-#include "main/light.h"
-#include "math/m_translate.h"
-#include "math/m_xform.h"
-#include "main/state.h"
-
-#include "tnl.h"
-#include "t_context.h"
-#include "t_pipeline.h"
-
-#include "vbo/vbo.h"
-
-GLboolean
-_tnl_CreateContext( struct gl_context *ctx )
-{
- TNLcontext *tnl;
-
- /* Create the TNLcontext structure
- */
- ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) );
-
- if (!tnl) {
- return GL_FALSE;
- }
-
- /* Initialize the VB.
- */
- tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
-
-
- /* Initialize tnl state.
- */
- if (ctx->VertexProgram._MaintainTnlProgram) {
- _tnl_install_pipeline( ctx, _tnl_vp_pipeline );
- } else {
- _tnl_install_pipeline( ctx, _tnl_default_pipeline );
- }
-
- tnl->NeedNdcCoords = GL_TRUE;
- tnl->AllowVertexFog = GL_TRUE;
- tnl->AllowPixelFog = GL_TRUE;
-
- /* Set a few default values in the driver struct.
- */
- tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
- tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
- tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables;
-
- tnl->nr_blocks = 0;
-
- /* plug in the VBO drawing function */
- vbo_set_draw_func(ctx, _tnl_vbo_draw_prims);
-
- _math_init_transformation();
- _math_init_translate();
-
- return GL_TRUE;
-}
-
-
-void
-_tnl_DestroyContext( struct gl_context *ctx )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
-
- _tnl_destroy_pipeline( ctx );
-
- FREE(tnl);
- ctx->swtnl_context = NULL;
-}
-
-
-void
-_tnl_InvalidateState( struct gl_context *ctx, GLuint new_state )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- const struct gl_vertex_program *vp = ctx->VertexProgram._Current;
- const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
- GLuint i;
-
- if (new_state & (_NEW_HINT | _NEW_PROGRAM)) {
- ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog);
- tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
- || !tnl->AllowPixelFog) && !fp;
- }
-
- tnl->pipeline.new_state |= new_state;
-
- /* Calculate tnl->render_inputs. This bitmask indicates which vertex
- * attributes need to be emitted to the rasterizer.
- */
- RENDERINPUTS_ZERO( tnl->render_inputs_bitset );
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
-
- if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) {
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 );
- }
-
- if (_mesa_need_secondary_color(ctx))
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 );
-
- for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
- if (ctx->Texture._EnabledCoordUnits & (1 << i) ||
- (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) {
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) );
- }
- }
-
- if (ctx->Fog.Enabled
- || (fp != NULL && (fp->Base.InputsRead & FRAG_BIT_FOGC) != 0)) {
- /* Either fixed-function fog or a fragment program needs fog coord.
- */
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
- }
-
- if (ctx->Polygon.FrontMode != GL_FILL ||
- ctx->Polygon.BackMode != GL_FILL)
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG );
-
- if (ctx->RenderMode == GL_FEEDBACK)
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 );
-
- if (ctx->Point._Attenuated ||
- (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled))
- RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE );
-
- /* check for varying vars which are written by the vertex program */
- if (vp) {
- GLuint i;
- for (i = 0; i < MAX_VARYING; i++) {
- if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) {
- RENDERINPUTS_SET(tnl->render_inputs_bitset,
- _TNL_ATTRIB_GENERIC(i));
- }
- }
- }
-}
-
-
-void
-_tnl_wakeup( struct gl_context *ctx )
-{
- /* Assume we haven't been getting state updates either:
- */
- _tnl_InvalidateState( ctx, ~0 );
-
-#if 0
- if (ctx->Light.ColorMaterialEnabled) {
- _mesa_update_color_material( ctx,
- ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
- }
-#endif
-}
-
-
-
-
-/**
- * Drivers call this function to tell the TCL module whether or not
- * it wants Normalized Device Coords (NDC) computed. I.e. whether
- * we should "Divide-by-W". Software renders will want that.
- */
-void
-_tnl_need_projected_coords( struct gl_context *ctx, GLboolean mode )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- tnl->NeedNdcCoords = mode;
-}
-
-void
-_tnl_allow_vertex_fog( struct gl_context *ctx, GLboolean value )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- tnl->AllowVertexFog = value;
- tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
- || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
-
-}
-
-void
-_tnl_allow_pixel_fog( struct gl_context *ctx, GLboolean value )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- tnl->AllowPixelFog = value;
- tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
- || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
-}
-
+/* + * Mesa 3-D graphics library + * Version: 7.2 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/imports.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/mtypes.h" +#include "main/light.h" +#include "math/m_translate.h" +#include "math/m_xform.h" +#include "main/state.h" + +#include "tnl.h" +#include "t_context.h" +#include "t_pipeline.h" + +#include "vbo/vbo.h" + +GLboolean +_tnl_CreateContext( struct gl_context *ctx ) +{ + TNLcontext *tnl; + + /* Create the TNLcontext structure + */ + ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) ); + + if (!tnl) { + return GL_FALSE; + } + + /* Initialize the VB. + */ + tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES; + + + /* Initialize tnl state. + */ + if (ctx->VertexProgram._MaintainTnlProgram) { + _tnl_install_pipeline( ctx, _tnl_vp_pipeline ); + } else { + _tnl_install_pipeline( ctx, _tnl_default_pipeline ); + } + + tnl->NeedNdcCoords = GL_TRUE; + tnl->AllowVertexFog = GL_TRUE; + tnl->AllowPixelFog = GL_TRUE; + + /* Set a few default values in the driver struct. + */ + tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; + tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; + tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables; + + tnl->nr_blocks = 0; + + /* plug in the VBO drawing function */ + vbo_set_draw_func(ctx, _tnl_vbo_draw_prims); + + _math_init_transformation(); + _math_init_translate(); + + return GL_TRUE; +} + + +void +_tnl_DestroyContext( struct gl_context *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + + _tnl_destroy_pipeline( ctx ); + + FREE(tnl); + ctx->swtnl_context = NULL; +} + + +void +_tnl_InvalidateState( struct gl_context *ctx, GLuint new_state ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + const struct gl_vertex_program *vp = ctx->VertexProgram._Current; + const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; + GLuint i; + + if (new_state & (_NEW_HINT | _NEW_PROGRAM)) { + ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog); + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !fp; + } + + tnl->pipeline.new_state |= new_state; + + /* Calculate tnl->render_inputs. This bitmask indicates which vertex + * attributes need to be emitted to the rasterizer. + */ + RENDERINPUTS_ZERO( tnl->render_inputs_bitset ); + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS ); + + if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) { + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 ); + } + + if (_mesa_need_secondary_color(ctx)) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 ); + + for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { + if (ctx->Texture._EnabledCoordUnits & (1 << i) || + (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) { + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) ); + } + } + + if (ctx->Fog.Enabled + || (fp != NULL && (fp->Base.InputsRead & FRAG_BIT_FOGC) != 0)) { + /* Either fixed-function fog or a fragment program needs fog coord. + */ + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG ); + } + + if (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG ); + + if (ctx->RenderMode == GL_FEEDBACK) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 ); + + if (ctx->Point._Attenuated || + (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled)) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE ); + + /* check for varying vars which are written by the vertex program */ + if (vp) { + GLuint i; + for (i = 0; i < MAX_VARYING; i++) { + if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) { + RENDERINPUTS_SET(tnl->render_inputs_bitset, + _TNL_ATTRIB_GENERIC(i)); + } + } + } +} + + +void +_tnl_wakeup( struct gl_context *ctx ) +{ + /* Assume we haven't been getting state updates either: + */ + _tnl_InvalidateState( ctx, ~0 ); + +#if 0 + if (ctx->Light.ColorMaterialEnabled) { + _mesa_update_color_material( ctx, + ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); + } +#endif +} + + + + +/** + * Drivers call this function to tell the TCL module whether or not + * it wants Normalized Device Coords (NDC) computed. I.e. whether + * we should "Divide-by-W". Software renders will want that. + */ +void +_tnl_need_projected_coords( struct gl_context *ctx, GLboolean mode ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->NeedNdcCoords = mode; +} + +void +_tnl_allow_vertex_fog( struct gl_context *ctx, GLboolean value ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->AllowVertexFog = value; + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; + +} + +void +_tnl_allow_pixel_fog( struct gl_context *ctx, GLboolean value ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->AllowPixelFog = value; + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; +} + diff --git a/mesalib/src/mesa/tnl/t_draw.c b/mesalib/src/mesa/tnl/t_draw.c index 03d343319..03424d7a4 100644 --- a/mesalib/src/mesa/tnl/t_draw.c +++ b/mesalib/src/mesa/tnl/t_draw.c @@ -1,548 +1,548 @@ -/*
- * 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.
- *
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "main/glheader.h"
-#include "main/bufferobj.h"
-#include "main/condrender.h"
-#include "main/context.h"
-#include "main/imports.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "main/enums.h"
-
-#include "t_context.h"
-#include "tnl.h"
-
-
-
-static GLubyte *get_space(struct gl_context *ctx, GLuint bytes)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- GLubyte *space = malloc(bytes);
-
- tnl->block[tnl->nr_blocks++] = space;
- return space;
-}
-
-
-static void free_space(struct gl_context *ctx)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- GLuint i;
- for (i = 0; i < tnl->nr_blocks; i++)
- free(tnl->block[i]);
- tnl->nr_blocks = 0;
-}
-
-
-/* Convert the incoming array to GLfloats. Understands the
- * array->Normalized flag and selects the correct conversion method.
- */
-#define CONVERT( TYPE, MACRO ) do { \
- GLuint i, j; \
- if (input->Normalized) { \
- for (i = 0; i < count; i++) { \
- const TYPE *in = (TYPE *)ptr; \
- for (j = 0; j < sz; j++) { \
- *fptr++ = MACRO(*in); \
- in++; \
- } \
- ptr += input->StrideB; \
- } \
- } else { \
- for (i = 0; i < count; i++) { \
- const TYPE *in = (TYPE *)ptr; \
- for (j = 0; j < sz; j++) { \
- *fptr++ = (GLfloat)(*in); \
- in++; \
- } \
- ptr += input->StrideB; \
- } \
- } \
-} while (0)
-
-
-/**
- * Convert array of BGRA/GLubyte[4] values to RGBA/float[4]
- * \param ptr input/ubyte array
- * \param fptr output/float array
- */
-static void
-convert_bgra_to_float(const struct gl_client_array *input,
- const GLubyte *ptr, GLfloat *fptr,
- GLuint count )
-{
- GLuint i;
- assert(input->Normalized);
- assert(input->Size == 4);
- for (i = 0; i < count; i++) {
- const GLubyte *in = (GLubyte *) ptr; /* in is in BGRA order */
- *fptr++ = UBYTE_TO_FLOAT(in[2]); /* red */
- *fptr++ = UBYTE_TO_FLOAT(in[1]); /* green */
- *fptr++ = UBYTE_TO_FLOAT(in[0]); /* blue */
- *fptr++ = UBYTE_TO_FLOAT(in[3]); /* alpha */
- ptr += input->StrideB;
- }
-}
-
-static void
-convert_half_to_float(const struct gl_client_array *input,
- const GLubyte *ptr, GLfloat *fptr,
- GLuint count, GLuint sz)
-{
- GLuint i, j;
-
- for (i = 0; i < count; i++) {
- GLhalfARB *in = (GLhalfARB *)ptr;
-
- for (j = 0; j < sz; j++) {
- *fptr++ = _mesa_half_to_float(in[j]);
- }
- ptr += input->StrideB;
- }
-}
-
-/**
- * \brief Convert fixed-point to floating-point.
- *
- * In OpenGL, a fixed-point number is a "signed 2's complement 16.16 scaled
- * integer" (Table 2.2 of the OpenGL ES 2.0 spec).
- *
- * If the buffer has the \c normalized flag set, the formula
- * \code normalize(x) := (2*x + 1) / (2^16 - 1) \endcode
- * is used to map the fixed-point numbers into the range [-1, 1].
- */
-static void
-convert_fixed_to_float(const struct gl_client_array *input,
- const GLubyte *ptr, GLfloat *fptr,
- GLuint count)
-{
- GLuint i, j;
- const GLint size = input->Size;
-
- if (input->Normalized) {
- for (i = 0; i < count; ++i) {
- const GLfixed *in = (GLfixed *) ptr;
- for (j = 0; j < size; ++j) {
- *fptr++ = (GLfloat) (2 * in[j] + 1) / (GLfloat) ((1 << 16) - 1);
- }
- ptr += input->StrideB;
- }
- } else {
- for (i = 0; i < count; ++i) {
- const GLfixed *in = (GLfixed *) ptr;
- for (j = 0; j < size; ++j) {
- *fptr++ = in[j] / (GLfloat) (1 << 16);
- }
- ptr += input->StrideB;
- }
- }
-}
-
-/* Adjust pointer to point at first requested element, convert to
- * floating point, populate VB->AttribPtr[].
- */
-static void _tnl_import_array( struct gl_context *ctx,
- GLuint attrib,
- GLuint count,
- const struct gl_client_array *input,
- const GLubyte *ptr )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- GLuint stride = input->StrideB;
-
- if (input->Type != GL_FLOAT) {
- const GLuint sz = input->Size;
- GLubyte *buf = get_space(ctx, count * sz * sizeof(GLfloat));
- GLfloat *fptr = (GLfloat *)buf;
-
- switch (input->Type) {
- case GL_BYTE:
- CONVERT(GLbyte, BYTE_TO_FLOAT);
- break;
- case GL_UNSIGNED_BYTE:
- if (input->Format == GL_BGRA) {
- /* See GL_EXT_vertex_array_bgra */
- convert_bgra_to_float(input, ptr, fptr, count);
- }
- else {
- CONVERT(GLubyte, UBYTE_TO_FLOAT);
- }
- break;
- case GL_SHORT:
- CONVERT(GLshort, SHORT_TO_FLOAT);
- break;
- case GL_UNSIGNED_SHORT:
- CONVERT(GLushort, USHORT_TO_FLOAT);
- break;
- case GL_INT:
- CONVERT(GLint, INT_TO_FLOAT);
- break;
- case GL_UNSIGNED_INT:
- CONVERT(GLuint, UINT_TO_FLOAT);
- break;
- case GL_DOUBLE:
- CONVERT(GLdouble, (GLfloat));
- break;
- case GL_HALF_FLOAT:
- convert_half_to_float(input, ptr, fptr, count, sz);
- break;
- case GL_FIXED:
- convert_fixed_to_float(input, ptr, fptr, count);
- break;
- default:
- assert(0);
- break;
- }
-
- ptr = buf;
- stride = sz * sizeof(GLfloat);
- }
-
- VB->AttribPtr[attrib] = &tnl->tmp_inputs[attrib];
- VB->AttribPtr[attrib]->data = (GLfloat (*)[4])ptr;
- VB->AttribPtr[attrib]->start = (GLfloat *)ptr;
- VB->AttribPtr[attrib]->count = count;
- VB->AttribPtr[attrib]->stride = stride;
- VB->AttribPtr[attrib]->size = input->Size;
-
- /* This should die, but so should the whole GLvector4f concept:
- */
- VB->AttribPtr[attrib]->flags = (((1<<input->Size)-1) |
- VEC_NOT_WRITEABLE |
- (stride == 4*sizeof(GLfloat) ? 0 : VEC_BAD_STRIDE));
-
- VB->AttribPtr[attrib]->storage = NULL;
-}
-
-#define CLIPVERTS ((6 + MAX_CLIP_PLANES) * 2)
-
-
-static GLboolean *_tnl_import_edgeflag( struct gl_context *ctx,
- const GLvector4f *input,
- GLuint count)
-{
- const GLubyte *ptr = (const GLubyte *)input->data;
- const GLuint stride = input->stride;
- GLboolean *space = (GLboolean *)get_space(ctx, count + CLIPVERTS);
- GLboolean *bptr = space;
- GLuint i;
-
- for (i = 0; i < count; i++) {
- *bptr++ = ((GLfloat *)ptr)[0] == 1.0;
- ptr += stride;
- }
-
- return space;
-}
-
-
-static void bind_inputs( struct gl_context *ctx,
- const struct gl_client_array *inputs[],
- GLint count,
- struct gl_buffer_object **bo,
- GLuint *nr_bo )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- GLuint i;
-
- /* Map all the VBOs
- */
- for (i = 0; i < VERT_ATTRIB_MAX; i++) {
- const void *ptr;
-
- if (inputs[i]->BufferObj->Name) {
- if (!inputs[i]->BufferObj->Pointer) {
- bo[*nr_bo] = inputs[i]->BufferObj;
- (*nr_bo)++;
- ctx->Driver.MapBufferRange(ctx, 0, inputs[i]->BufferObj->Size,
- GL_MAP_READ_BIT,
- inputs[i]->BufferObj);
-
- assert(inputs[i]->BufferObj->Pointer);
- }
-
- ptr = ADD_POINTERS(inputs[i]->BufferObj->Pointer,
- inputs[i]->Ptr);
- }
- else
- ptr = inputs[i]->Ptr;
-
- /* Just make sure the array is floating point, otherwise convert to
- * temporary storage.
- *
- * XXX: remove the GLvector4f type at some stage and just use
- * client arrays.
- */
- _tnl_import_array(ctx, i, count, inputs[i], ptr);
- }
-
- /* We process only the vertices between min & max index:
- */
- VB->Count = count;
-
- /* These should perhaps be part of _TNL_ATTRIB_* */
- VB->BackfaceColorPtr = NULL;
- VB->BackfaceIndexPtr = NULL;
- VB->BackfaceSecondaryColorPtr = NULL;
-
- /* Clipping and drawing code still requires this to be a packed
- * array of ubytes which can be written into. TODO: Fix and
- * remove.
- */
- if (ctx->Polygon.FrontMode != GL_FILL ||
- ctx->Polygon.BackMode != GL_FILL)
- {
- VB->EdgeFlag = _tnl_import_edgeflag( ctx,
- VB->AttribPtr[_TNL_ATTRIB_EDGEFLAG],
- VB->Count );
- }
- else {
- /* the data previously pointed to by EdgeFlag may have been freed */
- VB->EdgeFlag = NULL;
- }
-}
-
-
-/* Translate indices to GLuints and store in VB->Elts.
- */
-static void bind_indices( struct gl_context *ctx,
- const struct _mesa_index_buffer *ib,
- struct gl_buffer_object **bo,
- GLuint *nr_bo)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- GLuint i;
- const void *ptr;
-
- if (!ib) {
- VB->Elts = NULL;
- return;
- }
-
- if (_mesa_is_bufferobj(ib->obj) && !_mesa_bufferobj_mapped(ib->obj)) {
- /* if the buffer object isn't mapped yet, map it now */
- unsigned map_size;
-
- switch (ib->type) {
- case GL_UNSIGNED_BYTE:
- map_size = ib->count * sizeof(GLubyte);
- break;
- case GL_UNSIGNED_SHORT:
- map_size = ib->count * sizeof(GLushort);
- break;
- case GL_UNSIGNED_INT:
- map_size = ib->count * sizeof(GLuint);
- break;
- default:
- assert(0);
- map_size = 0;
- }
-
- bo[*nr_bo] = ib->obj;
- (*nr_bo)++;
- ptr = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr, map_size,
- GL_MAP_READ_BIT, ib->obj);
- assert(ib->obj->Pointer);
- } else {
- /* user-space elements, or buffer already mapped */
- ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr);
- }
-
- if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) {
- VB->Elts = (GLuint *) ptr;
- }
- else {
- GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint));
- VB->Elts = elts;
-
- if (ib->type == GL_UNSIGNED_INT) {
- const GLuint *in = (GLuint *)ptr;
- for (i = 0; i < ib->count; i++)
- *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
- }
- else if (ib->type == GL_UNSIGNED_SHORT) {
- const GLushort *in = (GLushort *)ptr;
- for (i = 0; i < ib->count; i++)
- *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
- }
- else {
- const GLubyte *in = (GLubyte *)ptr;
- for (i = 0; i < ib->count; i++)
- *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
- }
- }
-}
-
-static void bind_prims( struct gl_context *ctx,
- const struct _mesa_prim *prim,
- GLuint nr_prims )
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
-
- VB->Primitive = prim;
- VB->PrimitiveCount = nr_prims;
-}
-
-static void unmap_vbos( struct gl_context *ctx,
- struct gl_buffer_object **bo,
- GLuint nr_bo )
-{
- GLuint i;
- for (i = 0; i < nr_bo; i++) {
- ctx->Driver.UnmapBuffer(ctx, bo[i]);
- }
-}
-
-
-void _tnl_vbo_draw_prims(struct gl_context *ctx,
- const struct gl_client_array *arrays[],
- const struct _mesa_prim *prim,
- GLuint nr_prims,
- const struct _mesa_index_buffer *ib,
- GLboolean index_bounds_valid,
- GLuint min_index,
- GLuint max_index)
-{
- if (!index_bounds_valid)
- vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index);
-
- _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index);
-}
-
-/* This is the main entrypoint into the slimmed-down software tnl
- * module. In a regular swtnl driver, this can be plugged straight
- * into the vbo->Driver.DrawPrims() callback.
- */
-void _tnl_draw_prims( struct gl_context *ctx,
- const struct gl_client_array *arrays[],
- const struct _mesa_prim *prim,
- GLuint nr_prims,
- const struct _mesa_index_buffer *ib,
- GLuint min_index,
- GLuint max_index)
-{
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- const GLuint TEST_SPLIT = 0;
- const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES;
- GLint max_basevertex = prim->basevertex;
- GLuint i;
-
- /* Mesa core state should have been validated already */
- assert(ctx->NewState == 0x0);
-
- if (!_mesa_check_conditional_render(ctx))
- return; /* don't draw */
-
- for (i = 1; i < nr_prims; i++)
- max_basevertex = MAX2(max_basevertex, prim[i].basevertex);
-
- if (0)
- {
- printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);
- for (i = 0; i < nr_prims; i++)
- printf("prim %d: %s start %d count %d\n", i,
- _mesa_lookup_enum_by_nr(prim[i].mode),
- prim[i].start,
- prim[i].count);
- }
-
- if (min_index) {
- /* We always translate away calls with min_index != 0.
- */
- vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib,
- min_index, max_index,
- _tnl_vbo_draw_prims );
- return;
- }
- else if ((GLint)max_index + max_basevertex > max) {
- /* The software TNL pipeline has a fixed amount of storage for
- * vertices and it is necessary to split incoming drawing commands
- * if they exceed that limit.
- */
- struct split_limits limits;
- limits.max_verts = max;
- limits.max_vb_size = ~0;
- limits.max_indices = ~0;
-
- /* This will split the buffers one way or another and
- * recursively call back into this function.
- */
- vbo_split_prims( ctx, arrays, prim, nr_prims, ib,
- 0, max_index + prim->basevertex,
- _tnl_vbo_draw_prims,
- &limits );
- }
- else {
- /* May need to map a vertex buffer object for every attribute plus
- * one for the index buffer.
- */
- struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1];
- GLuint nr_bo = 0;
- GLuint inst;
-
- for (i = 0; i < nr_prims;) {
- GLuint this_nr_prims;
-
- /* Our SW TNL pipeline doesn't handle basevertex yet, so bind_indices
- * will rebase the elements to the basevertex, and we'll only
- * emit strings of prims with the same basevertex in one draw call.
- */
- for (this_nr_prims = 1; i + this_nr_prims < nr_prims;
- this_nr_prims++) {
- if (prim[i].basevertex != prim[i + this_nr_prims].basevertex)
- break;
- }
-
- assert(prim[i].num_instances > 0);
-
- /* Binding inputs may imply mapping some vertex buffer objects.
- * They will need to be unmapped below.
- */
- for (inst = 0; inst < prim[i].num_instances; inst++) {
-
- bind_prims(ctx, &prim[i], this_nr_prims);
- bind_inputs(ctx, arrays, max_index + prim[i].basevertex + 1,
- bo, &nr_bo);
- bind_indices(ctx, ib, bo, &nr_bo);
-
- tnl->CurInstance = inst;
- TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx);
-
- unmap_vbos(ctx, bo, nr_bo);
- free_space(ctx);
- }
-
- i += this_nr_prims;
- }
- }
-}
-
+/* + * 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. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/bufferobj.h" +#include "main/condrender.h" +#include "main/context.h" +#include "main/imports.h" +#include "main/mtypes.h" +#include "main/macros.h" +#include "main/enums.h" + +#include "t_context.h" +#include "tnl.h" + + + +static GLubyte *get_space(struct gl_context *ctx, GLuint bytes) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLubyte *space = malloc(bytes); + + tnl->block[tnl->nr_blocks++] = space; + return space; +} + + +static void free_space(struct gl_context *ctx) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint i; + for (i = 0; i < tnl->nr_blocks; i++) + free(tnl->block[i]); + tnl->nr_blocks = 0; +} + + +/* Convert the incoming array to GLfloats. Understands the + * array->Normalized flag and selects the correct conversion method. + */ +#define CONVERT( TYPE, MACRO ) do { \ + GLuint i, j; \ + if (input->Normalized) { \ + for (i = 0; i < count; i++) { \ + const TYPE *in = (TYPE *)ptr; \ + for (j = 0; j < sz; j++) { \ + *fptr++ = MACRO(*in); \ + in++; \ + } \ + ptr += input->StrideB; \ + } \ + } else { \ + for (i = 0; i < count; i++) { \ + const TYPE *in = (TYPE *)ptr; \ + for (j = 0; j < sz; j++) { \ + *fptr++ = (GLfloat)(*in); \ + in++; \ + } \ + ptr += input->StrideB; \ + } \ + } \ +} while (0) + + +/** + * Convert array of BGRA/GLubyte[4] values to RGBA/float[4] + * \param ptr input/ubyte array + * \param fptr output/float array + */ +static void +convert_bgra_to_float(const struct gl_client_array *input, + const GLubyte *ptr, GLfloat *fptr, + GLuint count ) +{ + GLuint i; + assert(input->Normalized); + assert(input->Size == 4); + for (i = 0; i < count; i++) { + const GLubyte *in = (GLubyte *) ptr; /* in is in BGRA order */ + *fptr++ = UBYTE_TO_FLOAT(in[2]); /* red */ + *fptr++ = UBYTE_TO_FLOAT(in[1]); /* green */ + *fptr++ = UBYTE_TO_FLOAT(in[0]); /* blue */ + *fptr++ = UBYTE_TO_FLOAT(in[3]); /* alpha */ + ptr += input->StrideB; + } +} + +static void +convert_half_to_float(const struct gl_client_array *input, + const GLubyte *ptr, GLfloat *fptr, + GLuint count, GLuint sz) +{ + GLuint i, j; + + for (i = 0; i < count; i++) { + GLhalfARB *in = (GLhalfARB *)ptr; + + for (j = 0; j < sz; j++) { + *fptr++ = _mesa_half_to_float(in[j]); + } + ptr += input->StrideB; + } +} + +/** + * \brief Convert fixed-point to floating-point. + * + * In OpenGL, a fixed-point number is a "signed 2's complement 16.16 scaled + * integer" (Table 2.2 of the OpenGL ES 2.0 spec). + * + * If the buffer has the \c normalized flag set, the formula + * \code normalize(x) := (2*x + 1) / (2^16 - 1) \endcode + * is used to map the fixed-point numbers into the range [-1, 1]. + */ +static void +convert_fixed_to_float(const struct gl_client_array *input, + const GLubyte *ptr, GLfloat *fptr, + GLuint count) +{ + GLuint i, j; + const GLint size = input->Size; + + if (input->Normalized) { + for (i = 0; i < count; ++i) { + const GLfixed *in = (GLfixed *) ptr; + for (j = 0; j < size; ++j) { + *fptr++ = (GLfloat) (2 * in[j] + 1) / (GLfloat) ((1 << 16) - 1); + } + ptr += input->StrideB; + } + } else { + for (i = 0; i < count; ++i) { + const GLfixed *in = (GLfixed *) ptr; + for (j = 0; j < size; ++j) { + *fptr++ = in[j] / (GLfloat) (1 << 16); + } + ptr += input->StrideB; + } + } +} + +/* Adjust pointer to point at first requested element, convert to + * floating point, populate VB->AttribPtr[]. + */ +static void _tnl_import_array( struct gl_context *ctx, + GLuint attrib, + GLuint count, + const struct gl_client_array *input, + const GLubyte *ptr ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint stride = input->StrideB; + + if (input->Type != GL_FLOAT) { + const GLuint sz = input->Size; + GLubyte *buf = get_space(ctx, count * sz * sizeof(GLfloat)); + GLfloat *fptr = (GLfloat *)buf; + + switch (input->Type) { + case GL_BYTE: + CONVERT(GLbyte, BYTE_TO_FLOAT); + break; + case GL_UNSIGNED_BYTE: + if (input->Format == GL_BGRA) { + /* See GL_EXT_vertex_array_bgra */ + convert_bgra_to_float(input, ptr, fptr, count); + } + else { + CONVERT(GLubyte, UBYTE_TO_FLOAT); + } + break; + case GL_SHORT: + CONVERT(GLshort, SHORT_TO_FLOAT); + break; + case GL_UNSIGNED_SHORT: + CONVERT(GLushort, USHORT_TO_FLOAT); + break; + case GL_INT: + CONVERT(GLint, INT_TO_FLOAT); + break; + case GL_UNSIGNED_INT: + CONVERT(GLuint, UINT_TO_FLOAT); + break; + case GL_DOUBLE: + CONVERT(GLdouble, (GLfloat)); + break; + case GL_HALF_FLOAT: + convert_half_to_float(input, ptr, fptr, count, sz); + break; + case GL_FIXED: + convert_fixed_to_float(input, ptr, fptr, count); + break; + default: + assert(0); + break; + } + + ptr = buf; + stride = sz * sizeof(GLfloat); + } + + VB->AttribPtr[attrib] = &tnl->tmp_inputs[attrib]; + VB->AttribPtr[attrib]->data = (GLfloat (*)[4])ptr; + VB->AttribPtr[attrib]->start = (GLfloat *)ptr; + VB->AttribPtr[attrib]->count = count; + VB->AttribPtr[attrib]->stride = stride; + VB->AttribPtr[attrib]->size = input->Size; + + /* This should die, but so should the whole GLvector4f concept: + */ + VB->AttribPtr[attrib]->flags = (((1<<input->Size)-1) | + VEC_NOT_WRITEABLE | + (stride == 4*sizeof(GLfloat) ? 0 : VEC_BAD_STRIDE)); + + VB->AttribPtr[attrib]->storage = NULL; +} + +#define CLIPVERTS ((6 + MAX_CLIP_PLANES) * 2) + + +static GLboolean *_tnl_import_edgeflag( struct gl_context *ctx, + const GLvector4f *input, + GLuint count) +{ + const GLubyte *ptr = (const GLubyte *)input->data; + const GLuint stride = input->stride; + GLboolean *space = (GLboolean *)get_space(ctx, count + CLIPVERTS); + GLboolean *bptr = space; + GLuint i; + + for (i = 0; i < count; i++) { + *bptr++ = ((GLfloat *)ptr)[0] == 1.0; + ptr += stride; + } + + return space; +} + + +static void bind_inputs( struct gl_context *ctx, + const struct gl_client_array *inputs[], + GLint count, + struct gl_buffer_object **bo, + GLuint *nr_bo ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i; + + /* Map all the VBOs + */ + for (i = 0; i < VERT_ATTRIB_MAX; i++) { + const void *ptr; + + if (inputs[i]->BufferObj->Name) { + if (!inputs[i]->BufferObj->Pointer) { + bo[*nr_bo] = inputs[i]->BufferObj; + (*nr_bo)++; + ctx->Driver.MapBufferRange(ctx, 0, inputs[i]->BufferObj->Size, + GL_MAP_READ_BIT, + inputs[i]->BufferObj); + + assert(inputs[i]->BufferObj->Pointer); + } + + ptr = ADD_POINTERS(inputs[i]->BufferObj->Pointer, + inputs[i]->Ptr); + } + else + ptr = inputs[i]->Ptr; + + /* Just make sure the array is floating point, otherwise convert to + * temporary storage. + * + * XXX: remove the GLvector4f type at some stage and just use + * client arrays. + */ + _tnl_import_array(ctx, i, count, inputs[i], ptr); + } + + /* We process only the vertices between min & max index: + */ + VB->Count = count; + + /* These should perhaps be part of _TNL_ATTRIB_* */ + VB->BackfaceColorPtr = NULL; + VB->BackfaceIndexPtr = NULL; + VB->BackfaceSecondaryColorPtr = NULL; + + /* Clipping and drawing code still requires this to be a packed + * array of ubytes which can be written into. TODO: Fix and + * remove. + */ + if (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL) + { + VB->EdgeFlag = _tnl_import_edgeflag( ctx, + VB->AttribPtr[_TNL_ATTRIB_EDGEFLAG], + VB->Count ); + } + else { + /* the data previously pointed to by EdgeFlag may have been freed */ + VB->EdgeFlag = NULL; + } +} + + +/* Translate indices to GLuints and store in VB->Elts. + */ +static void bind_indices( struct gl_context *ctx, + const struct _mesa_index_buffer *ib, + struct gl_buffer_object **bo, + GLuint *nr_bo) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i; + const void *ptr; + + if (!ib) { + VB->Elts = NULL; + return; + } + + if (_mesa_is_bufferobj(ib->obj) && !_mesa_bufferobj_mapped(ib->obj)) { + /* if the buffer object isn't mapped yet, map it now */ + unsigned map_size; + + switch (ib->type) { + case GL_UNSIGNED_BYTE: + map_size = ib->count * sizeof(GLubyte); + break; + case GL_UNSIGNED_SHORT: + map_size = ib->count * sizeof(GLushort); + break; + case GL_UNSIGNED_INT: + map_size = ib->count * sizeof(GLuint); + break; + default: + assert(0); + map_size = 0; + } + + bo[*nr_bo] = ib->obj; + (*nr_bo)++; + ptr = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr, map_size, + GL_MAP_READ_BIT, ib->obj); + assert(ib->obj->Pointer); + } else { + /* user-space elements, or buffer already mapped */ + ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr); + } + + if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) { + VB->Elts = (GLuint *) ptr; + } + else { + GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint)); + VB->Elts = elts; + + if (ib->type == GL_UNSIGNED_INT) { + const GLuint *in = (GLuint *)ptr; + for (i = 0; i < ib->count; i++) + *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex; + } + else if (ib->type == GL_UNSIGNED_SHORT) { + const GLushort *in = (GLushort *)ptr; + for (i = 0; i < ib->count; i++) + *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex; + } + else { + const GLubyte *in = (GLubyte *)ptr; + for (i = 0; i < ib->count; i++) + *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex; + } + } +} + +static void bind_prims( struct gl_context *ctx, + const struct _mesa_prim *prim, + GLuint nr_prims ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + VB->Primitive = prim; + VB->PrimitiveCount = nr_prims; +} + +static void unmap_vbos( struct gl_context *ctx, + struct gl_buffer_object **bo, + GLuint nr_bo ) +{ + GLuint i; + for (i = 0; i < nr_bo; i++) { + ctx->Driver.UnmapBuffer(ctx, bo[i]); + } +} + + +void _tnl_vbo_draw_prims(struct gl_context *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLboolean index_bounds_valid, + GLuint min_index, + GLuint max_index) +{ + if (!index_bounds_valid) + vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index); + + _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index); +} + +/* This is the main entrypoint into the slimmed-down software tnl + * module. In a regular swtnl driver, this can be plugged straight + * into the vbo->Driver.DrawPrims() callback. + */ +void _tnl_draw_prims( struct gl_context *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLuint min_index, + GLuint max_index) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + const GLuint TEST_SPLIT = 0; + const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES; + GLint max_basevertex = prim->basevertex; + GLuint i; + + /* Mesa core state should have been validated already */ + assert(ctx->NewState == 0x0); + + if (!_mesa_check_conditional_render(ctx)) + return; /* don't draw */ + + for (i = 1; i < nr_prims; i++) + max_basevertex = MAX2(max_basevertex, prim[i].basevertex); + + if (0) + { + printf("%s %d..%d\n", __FUNCTION__, min_index, max_index); + for (i = 0; i < nr_prims; i++) + printf("prim %d: %s start %d count %d\n", i, + _mesa_lookup_enum_by_nr(prim[i].mode), + prim[i].start, + prim[i].count); + } + + if (min_index) { + /* We always translate away calls with min_index != 0. + */ + vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib, + min_index, max_index, + _tnl_vbo_draw_prims ); + return; + } + else if ((GLint)max_index + max_basevertex > max) { + /* The software TNL pipeline has a fixed amount of storage for + * vertices and it is necessary to split incoming drawing commands + * if they exceed that limit. + */ + struct split_limits limits; + limits.max_verts = max; + limits.max_vb_size = ~0; + limits.max_indices = ~0; + + /* This will split the buffers one way or another and + * recursively call back into this function. + */ + vbo_split_prims( ctx, arrays, prim, nr_prims, ib, + 0, max_index + prim->basevertex, + _tnl_vbo_draw_prims, + &limits ); + } + else { + /* May need to map a vertex buffer object for every attribute plus + * one for the index buffer. + */ + struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1]; + GLuint nr_bo = 0; + GLuint inst; + + for (i = 0; i < nr_prims;) { + GLuint this_nr_prims; + + /* Our SW TNL pipeline doesn't handle basevertex yet, so bind_indices + * will rebase the elements to the basevertex, and we'll only + * emit strings of prims with the same basevertex in one draw call. + */ + for (this_nr_prims = 1; i + this_nr_prims < nr_prims; + this_nr_prims++) { + if (prim[i].basevertex != prim[i + this_nr_prims].basevertex) + break; + } + + assert(prim[i].num_instances > 0); + + /* Binding inputs may imply mapping some vertex buffer objects. + * They will need to be unmapped below. + */ + for (inst = 0; inst < prim[i].num_instances; inst++) { + + bind_prims(ctx, &prim[i], this_nr_prims); + bind_inputs(ctx, arrays, max_index + prim[i].basevertex + 1, + bo, &nr_bo); + bind_indices(ctx, ib, bo, &nr_bo); + + tnl->CurInstance = inst; + TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx); + + unmap_vbos(ctx, bo, nr_bo); + free_space(ctx); + } + + i += this_nr_prims; + } + } +} + |