1cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 2cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Mesa 3-D graphics library 3cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 4a2ea606377ed5679dc513eabcf2d398216b47d61Michal Krol * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 6cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 7cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * copy of this software and associated documentation files (the "Software"), 8cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * to deal in the Software without restriction, including without limitation 9cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * and/or sell copies of the Software, and to permit persons to whom the 11cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Software is furnished to do so, subject to the following conditions: 12cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 13cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * The above copyright notice and this permission notice shall be included 14cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * in all copies or substantial portions of the Software. 15cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 16cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 193d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 203d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 213d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 223d8d5b298a268b119d840bc9bae0ee9e0c9244a9Kenneth Graunke * OTHER DEALINGS IN THE SOFTWARE. 23cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 2422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * Authors: 25877128505431adaf817dc8069172ebe4a1cdf5d8José Fonseca * Keith Whitwell <keithw@vmware.com> 26cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 27cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 28cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 29bbd287103dad776d8a45c87c4e51fbc26d9b80d5Brian Paul#include "main/glheader.h" 30bbd287103dad776d8a45c87c4e51fbc26d9b80d5Brian Paul#include "main/macros.h" 31bbd287103dad776d8a45c87c4e51fbc26d9b80d5Brian Paul#include "main/imports.h" 32bbd287103dad776d8a45c87c4e51fbc26d9b80d5Brian Paul#include "main/mtypes.h" 33cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 34cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "math/m_xform.h" 35cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 36cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_context.h" 37cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_pipeline.h" 38cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 39cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Is there any real benefit seperating texmat from texgen? It means 40cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * we need two lots of intermediate storage. Any changes to 41cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * _NEW_TEXTURE will invalidate both sets -- it's only on changes to 4222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * *only* _NEW_TEXTURE_MATRIX that texgen survives but texmat doesn't. 43cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 44cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * However, the seperation of this code from the complex texgen stuff 45cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * is very appealing. 46cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 47cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texmat_stage_data { 48610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; 49cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 50cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 51b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul#define TEXMAT_STAGE_DATA(stage) ((struct texmat_stage_data *)stage->privatePtr) 52cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 53cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 55f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergstatic GLboolean run_texmat_stage( struct gl_context *ctx, 56ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwell struct tnl_pipeline_stage *stage ) 57cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 58cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); 5922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 60cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 61cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 62a328e469d328f8b6fd5afdfc21d576fa1a2c43fcBrian Paul if (!ctx->Texture._TexMatEnabled || ctx->VertexProgram._Current) 636f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell return GL_TRUE; 646f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 65cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* ENABLE_TEXMAT implies that the texture matrix is not the 66cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * identity, so we don't have to check that here. 67cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 686f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { 69ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexMatEnabled & ENABLE_TEXMAT(i)) { 706f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell (void) TransformRaw( &store->texcoord[i], 716f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell ctx->TextureMatrixStack[i].Top, 7262e1fae858509615c6e54e0b9388cfa2691a5919Brian Paul VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]); 73cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 7462e1fae858509615c6e54e0b9388cfa2691a5919Brian Paul VB->AttribPtr[VERT_ATTRIB_TEX0+i] = &store->texcoord[i]; 75cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 766f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell } 776f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell 78cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_TRUE; 79cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 80cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 81cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Called the first time stage->run() is invoked. 83cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 84f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergstatic GLboolean alloc_texmat_data( struct gl_context *ctx, 85ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwell struct tnl_pipeline_stage *stage ) 86cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 8722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 88cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texmat_stage_data *store; 89cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 90cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 914fdac659f800da0aa4504489f627738c83c94d66Brian Paul stage->privatePtr = calloc(1, sizeof(*store)); 92cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store = TEXMAT_STAGE_DATA(stage); 93cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (!store) 94cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_FALSE; 95cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 9692f9785c727ea10ff5f8dc9770f0e8f388fcea70Brian Paul for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) 9708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 98cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 996f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell return GL_TRUE; 100cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 101cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 102cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 103ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwellstatic void free_texmat_data( struct tnl_pipeline_stage *stage ) 104cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); 106cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 107cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 108cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store) { 109610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) 110cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->texcoord[i].data) 11108836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_free( &store->texcoord[i] ); 112fe72a069d1fcce943f315907b4744b63158938b1Brian Paul free( store ); 113b97e478fe90f612041e27852eb8c95f45467bde8Keith Whitwell stage->privatePtr = NULL; 114cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 115cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 116cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 117cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 11822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 119ae0eaf93e092ac8e8b1c98f3e986de96940663faKeith Whitwellconst struct tnl_pipeline_stage _tnl_texture_transform_stage = 12022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes{ 12186b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul "texture transform", /* name */ 12286b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul NULL, /* private data */ 1236f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell alloc_texmat_data, 12486b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul free_texmat_data, /* destructor */ 1256f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell NULL, 1266f973f33679e034b7cb63806f1ddfabdbdd70123Keith Whitwell run_texmat_stage, 127cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 128