1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Mesa 3-D graphics library 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Version: 6.5 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice shall be included 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * in all copies or substantial portions of the Software. 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Authors: 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Keith Whitwell <keith@tungstengraphics.com> 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/glheader.h" 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/colormac.h" 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/macros.h" 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/imports.h" 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/mtypes.h" 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "math/m_xform.h" 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_context.h" 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "t_pipeline.h" 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Is there any real benefit seperating texmat from texgen? It means 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * we need two lots of intermediate storage. Any changes to 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * _NEW_TEXTURE will invalidate both sets -- it's only on changes to 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * *only* _NEW_TEXTURE_MATRIX that texgen survives but texmat doesn't. 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * However, the seperation of this code from the complex texgen stuff 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * is very appealing. 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstruct texmat_stage_data { 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#define TEXMAT_STAGE_DATA(stage) ((struct texmat_stage_data *)stage->privatePtr) 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic GLboolean run_texmat_stage( struct gl_context *ctx, 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tnl_pipeline_stage *stage ) 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint i; 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!ctx->Texture._TexMatEnabled || ctx->VertexProgram._Current) 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return GL_TRUE; 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* ENABLE_TEXMAT implies that the texture matrix is not the 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * identity, so we don't have to check that here. 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (ctx->Texture._TexMatEnabled & ENABLE_TEXMAT(i)) { 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (void) TransformRaw( &store->texcoord[i], 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ctx->TextureMatrixStack[i].Top, 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]); 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org VB->AttribPtr[VERT_ATTRIB_TEX0+i] = &store->texcoord[i]; 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return GL_TRUE; 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* Called the first time stage->run() is invoked. 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic GLboolean alloc_texmat_data( struct gl_context *ctx, 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tnl_pipeline_stage *stage ) 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct texmat_stage_data *store; 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint i; 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org stage->privatePtr = CALLOC(sizeof(*store)); 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org store = TEXMAT_STAGE_DATA(stage); 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!store) 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return GL_FALSE; 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return GL_TRUE; 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void free_texmat_data( struct tnl_pipeline_stage *stage ) 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint i; 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (store) { 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (store->texcoord[i].data) 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_vector4f_free( &store->texcoord[i] ); 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org FREE( store ); 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org stage->privatePtr = NULL; 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgconst struct tnl_pipeline_stage _tnl_texture_transform_stage = 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "texture transform", /* name */ 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, /* private data */ 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org alloc_texmat_data, 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org free_texmat_data, /* destructor */ 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org NULL, 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org run_texmat_stage, 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 129