t_vb_texgen.c revision 4e9676fb13f60ecdbc247b120031f18cd3febcb0
14e9676fb13f60ecdbc247b120031f18cd3febcb0Brian Paul/* $Id: t_vb_texgen.c,v 1.13 2002/06/29 19:48:17 brianp Exp $ */ 2cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 4cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Mesa 3-D graphics library 5cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Version: 3.5 6cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 8cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 9cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 10cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * copy of this software and associated documentation files (the "Software"), 11cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * to deal in the Software without restriction, including without limitation 12cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * and/or sell copies of the Software, and to permit persons to whom the 14cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Software is furnished to do so, subject to the following conditions: 15cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 16cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * The above copyright notice and this permission notice shall be included 17cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * in all copies or substantial portions of the Software. 18cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 19cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 26cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Authors: 27cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Brian Paul <brian@valinux.com> 28cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Keith Whitwell <keithw@valinux.com> 29cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 30cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 31cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 32cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "glheader.h" 33cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "colormac.h" 34cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "context.h" 35cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "macros.h" 36cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "mmath.h" 37cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "mem.h" 38cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "mtypes.h" 39cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 40cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "math/m_xform.h" 41cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 42cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_context.h" 43cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_pipeline.h" 44cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 45cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 46cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/*********************************************************************** 47cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Automatic texture coordinate generation (texgen) code. 48cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 49cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 50cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 51cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data; 52cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 53cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*texgen_func)( GLcontext *ctx, 54cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 55cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit); 56cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 57cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 58cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data { 59cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 60cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Per-texunit derived state. 61cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 62cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint TexgenSize[MAX_TEXTURE_UNITS]; 63cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint TexgenHoles[MAX_TEXTURE_UNITS]; 64cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texgen_func TexgenFunc[MAX_TEXTURE_UNITS]; 65cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 66cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Temporary values used in texgen. 67cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 68cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*tmp_f)[3]; 69cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *tmp_m; 70cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 71cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Buffered outputs of the stage. 72cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 73cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f texcoord[MAX_TEXTURE_UNITS]; 74cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 75cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 76cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 77b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul#define TEXGEN_STAGE_DATA(stage) ((struct texgen_stage_data *)stage->privatePtr) 78cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 79cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 80cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 81cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLuint all_bits[5] = { 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 83cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_1, 84cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_2, 85cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_3, 86cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_4, 87cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 88cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 89cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#define VEC_SIZE_FLAGS (VEC_SIZE_1|VEC_SIZE_2|VEC_SIZE_3|VEC_SIZE_4) 90cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 91ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_M (TEXGEN_SPHERE_MAP) 92ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_F (TEXGEN_SPHERE_MAP | \ 93ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell TEXGEN_REFLECTION_MAP_NV) 94ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 95ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 96ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 975e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m3( GLfloat f[][3], GLfloat m[], 98bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 995e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ) 100cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 101cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 102cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = (GLfloat *)eye->start; 103cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 104cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 106cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 107908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 108cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 10922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 110cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 111cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 112cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 113cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 114cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 115cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 116cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 117cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = 0.5F / (GLfloat) GL_SQRT(m[i]); 118cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 119cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 120cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 121cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 122cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 123cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1245e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m2( GLfloat f[][3], GLfloat m[], 125bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1265e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ) 127cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 128cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 129cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 130cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 131cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 132cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 133cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 134cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 135908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 136cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 13722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 138cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 139cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 140cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 141cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 142cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 143cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 144cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 145cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 146cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = 0.5F / (GLfloat) GL_SQRT(m[i]); 147cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 148cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 149cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 150cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 151cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 152cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1535e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughestypedef void (*build_m_func)( GLfloat f[][3], 1545e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes GLfloat m[], 155bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1565e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ); 157cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 158cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 159cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_m_func build_m_tab[5] = { 160cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 161cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 162cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m2, 163cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3, 164cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3 165cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 166cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 167cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 168cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* This is unusual in that we respect the stride of the output vector 169cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (f). This allows us to pass in either a texcoord vector4f, or a 17022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * temporary vector3f. 171cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 17222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f3( GLfloat *f, 173cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 174bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 175cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 176cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 177cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 178cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 179cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 180cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 181cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 182cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 183cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 184cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 185cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 18622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 187cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 188cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 189cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 190cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 191cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 192cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 19322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes STRIDE_F(f,fstride); 194cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 195cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 196cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 197cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 198cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 19922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f2( GLfloat *f, 200cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 201bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 202cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 203cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 204cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 205cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 206cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 207cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 208cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 209cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 210cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 211cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 212cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 21322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 214cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 215cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 216cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 217cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 218cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 219cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 220cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 221cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 222cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(f,fstride); 223cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 224cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 225cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 226cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 227cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*build_f_func)( GLfloat *f, 228cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 229bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal_vec, 230cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ); 231cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 232cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 233cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 23422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes/* Just treat 4-vectors as 3-vectors. 235cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 236cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_f_func build_f_tab[5] = { 237cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 238cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 239cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f2, 240cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f3, 24122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f3 242cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 243cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 244cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 245cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Special case texgen functions. 246cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 247cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_reflection_map_nv( GLcontext *ctx, 248cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 249cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 250cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 251cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 252cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 253cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 254cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 255cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f_tab[VB->EyePtr->size]( out->start, 256cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->stride, 25722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 25822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 25922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 260cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 261cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 262cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 263cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 26422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 2655e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 26622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 267cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 268cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 269cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 270cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 271cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 27222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 273cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 274cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 275cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 276cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 277cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_normal_map_nv( GLcontext *ctx, 278cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 279cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 280cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 281cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 282cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 283cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 284bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul GLvector4f *normal = VB->NormalPtr; 285cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->start; 286cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 287cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 288cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 289cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 290cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 291cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 292cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 293cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 294cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 295cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 296cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 297cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 298cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 299cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 300cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 30122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 3025e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 30322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 304cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 305cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 306cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 307cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 308cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 309cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 310cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 311cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 312cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_sphere_map( GLcontext *ctx, 313cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 314cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 315cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 316cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 317cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 318cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 319cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4]) out->start; 320cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 321cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 322cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 323cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 324cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3254e9676fb13f60ecdbc247b120031f18cd3febcb0Brian Paul/* _mesa_debug(NULL, "%s normstride %d eyestride %d\n", */ 326908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* __FUNCTION__, VB->NormalPtr->stride, */ 327908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* VB->EyePtr->stride); */ 328908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell 32922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes (build_m_tab[VB->EyePtr->size])( store->tmp_f, 33022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes store->tmp_m, 33122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 33222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 333cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 334cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 335cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0] * m[i] + 0.5F; 336cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = f[i][1] * m[i] + 0.5F; 337cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 338cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 339cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 340cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size,2); 341cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 342cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_2; 34322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size > 2) 3445e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[all_bits[in->size] & ~0x3]( out, in ); 345cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else { 346cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 2; 347cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_2; 348cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 349cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 350cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 351cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 352cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 353cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 35422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void texgen( GLcontext *ctx, 355cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 356cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 357cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 358cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 359cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &tnl->vb; 360cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 361cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 362cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 363cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *obj = VB->ObjPtr; 364cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye = VB->EyePtr; 365bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal = VB->NormalPtr; 366cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data; 367cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *indata; 368cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 369cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 370cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 3715c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell GLuint holes = 0; 372cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 373cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 374cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags & TEXGEN_NEED_M) { 37522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_m_tab[in->size]( store->tmp_f, store->tmp_m, normal, eye ); 376cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else if (texUnit->_GenFlags & TEXGEN_NEED_F) { 37722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f_tab[in->size]( (GLfloat *)store->tmp_f, 3, normal, eye ); 378cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 379cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3805c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (!in) { 3815c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell ASSERT(0); 3825c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in = out; 3835c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in->count = VB->Count; 3845c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell 3855c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = store->TexgenSize[unit]; 3865c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= texUnit->TexGenEnabled; 3875c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = VB->Count; 3885c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = store->TexgenHoles[unit]; 3895c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 3905c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell else { 391cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint copy = (all_bits[in->size] & ~texUnit->TexGenEnabled); 392cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (copy) 3935e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[copy]( out, in ); 394cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3955c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = MAX2(in->size, store->TexgenSize[unit]); 3965c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled; 3975c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = in->count; 39822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 3995c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = ~all_bits[in->size] & store->TexgenHoles[unit]; 400cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 401cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 4025c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (holes) { 40308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_2) _mesa_vector4f_clean_elem(out, count, 2); 40408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_1) _mesa_vector4f_clean_elem(out, count, 1); 40508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_0) _mesa_vector4f_clean_elem(out, count, 0); 4065c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 407cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 408cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & S_BIT) { 409cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 410cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeS) { 411cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4125e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( (GLfloat *)out->data, 4135e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4145e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneS ); 415cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 416cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4175e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( (GLfloat *)out->data, 4185e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4195e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneS ); 420cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 42122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 4225c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell for (indata=in->start,i=0 ; i<count ;i++, STRIDE_F(indata,in->stride)) 423cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = indata[0] * m[i] + 0.5F; 424cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 42522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 42622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 427cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 428cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 429cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 430cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 431cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 432cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 433cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 434cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 435cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 436cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 43708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad S texgen"); 438cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 43922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 440cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 441cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & T_BIT) { 442cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 443cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeT) { 444cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4455e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][1]), 4465e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4475e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneT ); 448cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 449cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4505e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][1]), 4515e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4525e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneT ); 45322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 45522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (indata=in->start,i=0; i<count ;i++,STRIDE_F(indata,in->stride)) 456cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = indata[1] * m[i] + 0.5F; 45722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 45922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 460cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 461cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 462cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 463cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 464cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 465cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 466cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 467cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 468cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 469cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 47008836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad T texgen"); 471cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 472cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 473cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 474cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) { 475cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 476cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeR) { 477cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4785e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][2]), 4795e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4805e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneR ); 481cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 482cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4835e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][2]), 4845e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4855e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneR ); 486cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 48722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 48822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 489cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = f[i][2]; 490cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 491cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 492cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 493cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(norm, normal->stride)) { 494cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 495cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 496cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 497cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 498cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 49908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad R texgen"); 500cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 501cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 502cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 503cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & Q_BIT) { 504cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeQ) { 505cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 5065e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][3]), 5075e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 5085e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneQ ); 509cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 510cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 5115e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][3]), 5125e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 5135e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneQ ); 514cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 515cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 51608836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad Q texgen"); 517cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 518cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 519cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 520cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 521cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 522cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_texgen_stage( GLcontext *ctx, 524cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 525cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 52622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 527cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA( stage ); 528cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 529cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 53022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 531ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) { 5324c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul if (stage->changed_inputs & (VERT_BIT_EYE | VERT_BIT_NORMAL | VERT_BIT_TEX(i))) 533cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i]( ctx, store, i ); 534cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 535cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->TexCoordPtr[i] = &store->texcoord[i]; 536cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 537cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 538cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_TRUE; 539cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 540cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 541cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 542cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 543cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_validate_texgen_stage( GLcontext *ctx, 545cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 546cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 547cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 548cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 549cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 550cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) { 551cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; 552cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 553cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled) { 554cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint sz; 555cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 556cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) 557cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 4; 558cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & Q_BIT) 559cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 3; 560cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & T_BIT) 561cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 2; 562cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 563cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 1; 56422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 565cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenSize[i] = sz; 566cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenHoles[i] = (all_bits[sz] & ~texUnit->TexGenEnabled); 567cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen; 56822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 569cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) { 570cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) { 571cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_reflection_map_nv; 572cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 573cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) { 574cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_normal_map_nv; 575cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 576cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 577cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) && 578cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->_GenFlags == TEXGEN_SPHERE_MAP) { 579cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_sphere_map; 580cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 581cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 582cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 583cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 584cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_texgen_stage; 585cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 586cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 587cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 588cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 589cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void check_texgen( GLcontext *ctx, struct gl_pipeline_stage *stage ) 590cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 591cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 592cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 0; 593cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 59486b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul if (ctx->Texture._TexGenEnabled && !ctx->VertexProgram.Enabled) { 595cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint inputs = 0; 596cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint outputs = 0; 597cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 598ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_OBJ_LINEAR) 5994c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_POS; 600ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 601ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) 6024c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_EYE; 603cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 604cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) 6054c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_NORMAL; 606cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 60722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 608ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) 609cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell { 6104c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul outputs |= VERT_BIT_TEX(i); 611cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 612cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Need the original input in case it contains a Q coord: 613cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (sigh) 614cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 6154c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_TEX(i); 616cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 617cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Something for Feedback? */ 618cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 619cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 620b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul if (stage->privatePtr) 621cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 622cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 1; 623cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->inputs = inputs; 624cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->outputs = outputs; 625cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 626cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 62722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 628cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 629cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 630cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 631cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Called the first time stage->run() is invoked. 632cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 63322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean alloc_texgen_data( GLcontext *ctx, 634cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 635cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 63622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 637cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store; 638cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 639cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 640b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = CALLOC(sizeof(*store)); 641cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store = TEXGEN_STAGE_DATA(stage); 642cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (!store) 643cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_FALSE; 644cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 645cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 64608836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 647cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 648cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3); 649cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat)); 650cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 651cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Now validate and run the stage. 652cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 653cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 654cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 655cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 656cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 657cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 658cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void free_texgen_data( struct gl_pipeline_stage *stage ) 659cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 660cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 661cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 662cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 663cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 664cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store) { 665cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) 66622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (store->texcoord[i].data) 66708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_free( &store->texcoord[i] ); 668cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 66922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 670cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_f) FREE( store->tmp_f ); 671cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_m) FREE( store->tmp_m ); 672cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FREE( store ); 673b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = NULL; 674cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 675cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 676cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 677cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 67822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 67922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesconst struct gl_pipeline_stage _tnl_texgen_stage = 68022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes{ 68186b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul "texgen", /* name */ 682cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to call check() */ 683cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to invalidate stored data */ 68486b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul GL_FALSE, /* active? */ 68586b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* inputs */ 68686b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* outputs */ 68786b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* changed_inputs */ 68886b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul NULL, /* private data */ 689cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell free_texgen_data, /* destructor */ 690cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell check_texgen, /* check */ 691cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell alloc_texgen_data /* run -- initially set to alloc data */ 692cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 693