t_pipeline.c revision 3d8d5b298a268b119d840bc9bae0ee9e0c9244a9
123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell/* 223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * Mesa 3-D graphics library 34b3835dadf37267ad5fba8ffd675e826d3691f9aBrian Paul * Version: 6.5.3 45e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 54b3835dadf37267ad5fba8ffd675e826d3691f9aBrian Paul * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 65e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 723caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * copy of this software and associated documentation files (the "Software"), 923caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * to deal in the Software without restriction, including without limitation 1023caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 1123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * and/or sell copies of the Software, and to permit persons to whom the 1223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * Software is furnished to do so, subject to the following conditions: 135e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 1423caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * The above copyright notice and this permission notice shall be included 1523caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * in all copies or substantial portions of the Software. 165e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 1723caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 1823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1923caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 203d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 213d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 223d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 233d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * OTHER DEALINGS IN THE SOFTWARE. 24cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 2522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * Authors: 2605a4b37707d2c598ea68c05d07a3d65bcbf5a076Brian Paul * Keith Whitwell <keith@tungstengraphics.com> 2723caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell */ 2823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 29c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian Paul#include "main/glheader.h" 30c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian Paul#include "main/context.h" 31c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian Paul#include "main/imports.h" 32c223c6b663cd5db39ba19c2be74b88cc3b8f53f3Brian Paul#include "main/mtypes.h" 3323caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 34cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_context.h" 3523caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell#include "t_pipeline.h" 366f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell#include "t_vp_build.h" 372b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell#include "t_vertex.h" 3823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 39f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergvoid _tnl_install_pipeline( struct gl_context *ctx, 40ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwell const struct tnl_pipeline_stage **stages ) 4123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell{ 4223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 4323caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell GLuint i; 4423caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 456f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.new_state = ~0; 4623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 47cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Create a writeable copy of each stage. 4823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell */ 49cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < MAX_PIPELINE_STAGES && stages[i] ; i++) { 506f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; 51e197de56cdb86835f1437688a9161cd909792d80Brian Paul memcpy(s, stages[i], sizeof(*s)); 526f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (s->create) 536f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell s->create(ctx, s); 5423caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell } 555e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen 566f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.nr_stages = i; 5723caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell} 5823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 59f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergvoid _tnl_destroy_pipeline( struct gl_context *ctx ) 6023caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell{ 6123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 62cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 635e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen 646f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell for (i = 0 ; i < tnl->pipeline.nr_stages ; i++) { 656f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; 666f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (s->destroy) 676f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell s->destroy(s); 686f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell } 695e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen 70cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell tnl->pipeline.nr_stages = 0; 7123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell} 7223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 736f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 746f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 75f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergstatic GLuint check_input_changes( struct gl_context *ctx ) 7623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell{ 7723caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 786f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell GLuint i; 796f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 8094b30dc390f1fdd526c080080830016fad3e2ee2Brian Paul for (i = 0; i <= _TNL_LAST_MAT; i++) { 816f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (tnl->vb.AttribPtr[i]->size != tnl->pipeline.last_attrib_size[i] || 826f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->vb.AttribPtr[i]->stride != tnl->pipeline.last_attrib_stride[i]) { 836f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.last_attrib_size[i] = tnl->vb.AttribPtr[i]->size; 846f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.last_attrib_stride[i] = tnl->vb.AttribPtr[i]->stride; 856f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.input_changes |= 1<<i; 8623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell } 876f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell } 886f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 896f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell return tnl->pipeline.input_changes; 906f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell} 916f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 9223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 93f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergstatic GLuint check_output_changes( struct gl_context *ctx ) 946f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell{ 956f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell#if 0 966f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 976f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 9836b252e94724b2512ea941eff2b3a3abeb80be79Paul Berry for (i = 0; i < VARYING_SLOT_MAX; i++) { 996f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (tnl->vb.ResultPtr[i]->size != tnl->last_result_size[i] || 1006f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->vb.ResultPtr[i]->stride != tnl->last_result_stride[i]) { 1016f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->last_result_size[i] = tnl->vb.ResultPtr[i]->size; 1026f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->last_result_stride[i] = tnl->vb.ResultPtr[i]->stride; 1036f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.output_changes |= 1<<i; 10422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 10523caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell } 10623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 1076f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (tnl->pipeline.output_changes) 1086f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->Driver.NotifyOutputChanges( ctx, tnl->pipeline.output_changes ); 1092b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell 1102b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell return tnl->pipeline.output_changes; 1112b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell#else 1122b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell return ~0; 1136f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell#endif 1146f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell} 11523caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 11623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 117f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergvoid _tnl_run_pipeline( struct gl_context *ctx ) 11823caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell{ 11923caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 120cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell unsigned short __tmp; 1216f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell GLuint i; 12223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 123790734045b69c47b1525fbf9106a7ca5a8eb7416Keith Whitwell if (!tnl->vb.Count) 124790734045b69c47b1525fbf9106a7ca5a8eb7416Keith Whitwell return; 125790734045b69c47b1525fbf9106a7ca5a8eb7416Keith Whitwell 1266f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell /* Check for changed input sizes or change in stride to/from zero 1276f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell * (ie const or non-const). 128cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 1296f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (check_input_changes( ctx ) || tnl->pipeline.new_state) { 130a328e469d328f8b6fd5afdfc21d576fa1a2c43fcBrian Paul if (ctx->VertexProgram._MaintainTnlProgram) 13181032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell _tnl_UpdateFixedFunctionProgram( ctx ); 132a661654a33ba38990719ac9f5aea2910a5d5bf77Keith Whitwell 1336f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell for (i = 0; i < tnl->pipeline.nr_stages ; i++) { 1346f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; 1356f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (s->validate) 1366f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell s->validate( ctx, s ); 1376f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell } 1386f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 1396f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.new_state = 0; 1406f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell tnl->pipeline.input_changes = 0; 1412b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell 1422b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell /* Pipeline can only change its output in response to either a 1432b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell * statechange or an input size/stride change. No other changes 1442b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell * are allowed. 1452b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell */ 1462b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell if (check_output_changes( ctx )) 1472b2bd08589099cb480b983835b01cc76a766a3c4Keith Whitwell _tnl_notify_pipeline_output_change( ctx ); 1486f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell } 1495e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen 150e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger#ifndef _OPENMP 151e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger /* Don't adjust FPU precision mode in case multiple threads are to be used. 152e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * This would require that the additional threads also changed the FPU mode 153e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * which is quite a mess as this had to be done in all parallelized sections; 154e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * otherwise the master thread and all other threads are running in different 155e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * modes, producing inconsistent results. 156e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * Note that all x64 implementations don't define/use START_FAST_MATH, so 157e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger * this is "hack" is only used in i386 mode 158e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger */ 1596f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell START_FAST_MATH(__tmp); 160e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger#endif 16116837e4219e03df36c34f08cee1967b946c44536Keith Whitwell 1626f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell for (i = 0; i < tnl->pipeline.nr_stages ; i++) { 1636f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; 1646f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell if (!s->run( ctx, s )) 1656f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell break; 16623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell } 167c6b2a92613a5110dbf387721af8ec505744183b9Keith Whitwell 168e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger#ifndef _OPENMP 169cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell END_FAST_MATH(__tmp); 170e411cd7b0a54d2f9b9f4cda4918aa7742ed5c2a6Andreas Fänger#endif 17123caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell} 17223caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 17323caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell 1745e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen 175cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* The default pipeline. This is useful for software rasterizers, and 176cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * simple hardware rasterizers. For customization, I don't recommend 177cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * tampering with the internals of these stages in the way that 178cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * drivers did in Mesa 3.4. These stages are basically black boxes, 17922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * and should be left intact. 180cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 18122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * To customize the pipeline, consider: 182cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 183cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * - removing redundant stages (making sure that the software rasterizer 184cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * can cope with this on fallback paths). An example is fog 185cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * coordinate generation, which is not required in the FX driver. 186cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 187cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * - replacing general-purpose machine-independent stages with 188cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * general-purpose machine-specific stages. There is no example of 189cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * this to date, though it must be borne in mind that all subsequent 190cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * stages that reference the output of the new stage must cope with 191cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * any machine-specific data introduced. This may not be easy 192cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * unless there are no such stages (ie the new stage is the last in 193cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * the pipe). 194cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 195cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * - inserting optimized (but specialized) stages ahead of the 196cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * general-purpose fallback implementation. For example, the old 197ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwell * fastpath mechanism, which only works when the VB->Elts input is 198cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * available, can be duplicated by placing the fastpath stage at the 199cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * head of this pipeline. Such specialized stages are currently 200cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * constrained to have no outputs (ie. they must either finish the * 201cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * pipeline by returning GL_FALSE from run(), or do nothing). 202cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 203cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Some work can be done to lift some of the restrictions in the final 20422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * case, if it becomes necessary to do so. 205cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 206ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwellconst struct tnl_pipeline_stage *_tnl_default_pipeline[] = { 20722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_vertex_transform_stage, 20822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_normal_transform_stage, 20922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_lighting_stage, 21022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_texgen_stage, 21122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_texture_transform_stage, 21222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes &_tnl_point_attenuation_stage, 21381032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell &_tnl_vertex_program_stage, 214e9d1889891ce32ffb3d6425f1e70510ea2c3e24bH. Verbeet &_tnl_fog_coordinate_stage, 215cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell &_tnl_render_stage, 216b97e478fe90f612041e27852eb8c95f45467bde8Keith Whitwell NULL 217cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 21881032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell 21981032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwellconst struct tnl_pipeline_stage *_tnl_vp_pipeline[] = { 2204b3835dadf37267ad5fba8ffd675e826d3691f9aBrian Paul &_tnl_vertex_program_stage, 22181032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell &_tnl_render_stage, 22281032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell NULL 22381032030ff42dd78133d85f7cabab5fb4c9aaf1eKeith Whitwell}; 224