t_vb_texgen.c revision 08836341788a9f9d638d9dc8328510ccd18ddeb5
108836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul/* $Id: t_vb_texgen.c,v 1.3 2001/03/03 20:33:31 brianp Exp $ */ 2cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 4cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Mesa 3-D graphics library 5cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Version: 3.5 6cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 7cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Copyright (C) 1999-2000 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 77cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#define TEXGEN_STAGE_DATA(stage) ((struct texgen_stage_data *)stage->private) 78cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 79cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 80cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 81cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLuint all_bits[5] = { 83cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 84cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_1, 85cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_2, 86cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_3, 87cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_4, 88cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 89cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 90cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#define VEC_SIZE_FLAGS (VEC_SIZE_1|VEC_SIZE_2|VEC_SIZE_3|VEC_SIZE_4) 91cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 92cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 93cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 94cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void build_m3(GLfloat f[][3], GLfloat m[], 95cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal, 96cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 97cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 98cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 99cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = (GLfloat *)eye->start; 100cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 101cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 102cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 103cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 104cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* KW: Had to rearrange this loop to avoid a compiler bug with gcc 106cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 2.7.3.1 at -O3 optimization. Using -fno-strength-reduce 107cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * also fixed the bug - is this generally necessary? 108cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 109cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride)) { 110cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 111cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell COPY_3V( u, coord ); 112cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 113cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 114cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 115cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 116cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 117cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 118cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 119cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = 0.5F / (GLfloat) GL_SQRT(m[i]); 120cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 121cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 122cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 123cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 124cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 125cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 126cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 127cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 128cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void build_m2(GLfloat f[][3], GLfloat m[], 129cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal, 130cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 131cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 132cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 133cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 134cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 135cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 136cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 137cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 138cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 139cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride)) { 140cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 141cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 142cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell COPY_2V( u, coord ); 143cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 144cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 145cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 146cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 147cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 148cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 149cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 150cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 151cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = 0.5F / (GLfloat) GL_SQRT(m[i]); 152cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 153cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 154cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 155cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 156cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 157cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 158cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 159cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 160cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*build_m_func)(GLfloat f[][3], 161cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat m[], 162cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal, 163cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ); 164cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 165cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 166cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 167cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_m_func build_m_tab[5] = { 168cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 169cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 170cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m2, 171cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3, 172cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3 173cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 174cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 175cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 176cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* This is unusual in that we respect the stride of the output vector 177cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (f). This allows us to pass in either a texcoord vector4f, or a 178cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * temporary vector3f. 179cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 180cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void build_f3( GLfloat *f, 181cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 182cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal, 183cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 184cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 185cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 186cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 187cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 188cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 189cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 190cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 191cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 192cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 193cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 194cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell COPY_3V( u, coord ); 195cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 196cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 197cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 198cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 199cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 200cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 201cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(f,fstride); 202cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 203cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 204cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 205cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 206cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 207cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void build_f2( GLfloat *f, 208cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 209cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal, 210cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 211cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 212cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 213cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 214cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 215cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 216cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 217cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 218cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 219cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 220cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 221cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell COPY_2V( u, coord ); 222cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 223cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 224cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 225cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 226cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 227cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 228cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 229cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 230cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(f,fstride); 231cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 232cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 233cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 234cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 235cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*build_f_func)( GLfloat *f, 236cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 237cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal_vec, 238cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ); 239cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 240cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 241cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 242cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Just treat 4-vectors as 3-vectors. 243cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 244cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_f_func build_f_tab[5] = { 245cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 246cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 247cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f2, 248cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f3, 249cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f3 250cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 251cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 252cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 253cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Special case texgen functions. 254cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 255cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_reflection_map_nv( GLcontext *ctx, 256cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 257cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 258cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 259cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 260cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 261cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 262cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 263cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f_tab[VB->EyePtr->size]( out->start, 264cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->stride, 265cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->NormalPtr, 266cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->EyePtr ); 267cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 268cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 269cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 270cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 271cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 272cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in->size == 4) 27308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_copy_tab[0][0x8](out, in, 0); 274cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 275cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 276cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 277cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 278cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 279cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 280cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 281cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 282cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 283cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 284cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 285cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_normal_map_nv( GLcontext *ctx, 286cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 287cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 288cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 289cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 290cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 291cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 292cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector3f *normal = VB->NormalPtr; 293cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->start; 294cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 295cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 296cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 297cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 298cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 299cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 300cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 301cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 302cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 303cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 304cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 305cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 306cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 307cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 308cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 309cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in->size == 4) 31008836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_copy_tab[0][0x8](out, in, 0); 311cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 312cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 313cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 314cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 315cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 316cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 317cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 318cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 319cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 320cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_sphere_map( GLcontext *ctx, 321cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 322cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 323cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 324cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 325cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 326cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 327cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4]) out->start; 328cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 329cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 330cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 331cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 332cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 333cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (build_m_tab[VB->EyePtr->size])( store->tmp_f, 334cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_m, 335cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->NormalPtr, 336cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->EyePtr ); 337cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 338cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 339cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0] * m[i] + 0.5F; 340cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = f[i][1] * m[i] + 0.5F; 341cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 342cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 343cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 344cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size,2); 345cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 346cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_2; 347cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in->size > 2) 34808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_copy_tab[0][all_bits[in->size] & ~0x3](out, in, 0); 349cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else { 350cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 2; 351cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_2; 352cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 353cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 354cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 355cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 356cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 357cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 358cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen( GLcontext *ctx, 359cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 360cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 361cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 362cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 363cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &tnl->vb; 364cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 365cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 366cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 367cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *obj = VB->ObjPtr; 368cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye = VB->EyePtr; 369cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector3f *normal = VB->NormalPtr; 370cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data; 371cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *indata; 372cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 373cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 374cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 3755c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell GLuint holes = 0; 376cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 377cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 378cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags & TEXGEN_NEED_M) { 379cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m_tab[in->size]( store->tmp_f, store->tmp_m, normal, eye ); 380cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else if (texUnit->_GenFlags & TEXGEN_NEED_F) { 381cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f_tab[in->size]( (GLfloat *)store->tmp_f, 3, normal, eye ); 382cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 383cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3845c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (!in) { 3855c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell ASSERT(0); 3865c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in = out; 3875c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in->count = VB->Count; 3885c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell 3895c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = store->TexgenSize[unit]; 3905c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= texUnit->TexGenEnabled; 3915c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = VB->Count; 3925c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = store->TexgenHoles[unit]; 3935c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 3945c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell else { 395cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint copy = (all_bits[in->size] & ~texUnit->TexGenEnabled); 396cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (copy) 39708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_copy_tab[0][copy](out, in, 0); 398cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3995c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = MAX2(in->size, store->TexgenSize[unit]); 4005c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled; 4015c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = in->count; 4025c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell 4035c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = ~all_bits[in->size] & store->TexgenHoles[unit]; 404cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 405cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 4065c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (holes) { 40708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_2) _mesa_vector4f_clean_elem(out, count, 2); 40808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_1) _mesa_vector4f_clean_elem(out, count, 1); 40908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_0) _mesa_vector4f_clean_elem(out, count, 0); 4105c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 411cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 412cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & S_BIT) { 413cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 414cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeS) { 415cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 416cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][obj->size])((GLfloat *)out->data, 417cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), obj, 418cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->ObjectPlaneS, 0); 419cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 420cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 421cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][eye->size])((GLfloat *)out->data, 422cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), eye, 423cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->EyePlaneS, 0); 424cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 425cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_SPHERE_MAP: 4265c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell for (indata=in->start,i=0 ; i<count ;i++, STRIDE_F(indata,in->stride)) 427cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = indata[0] * m[i] + 0.5F; 428cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 429cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_REFLECTION_MAP_NV: 430cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) 431cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 432cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 433cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 434cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 435cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 436cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 437cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 438cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 439cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 440cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 44108836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad S texgen"); 442cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 443cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 444cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 445cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & T_BIT) { 446cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 447cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeT) { 448cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 449cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][obj->size])(&(out->data[0][1]), 450cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), obj, 451cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->ObjectPlaneT, 0); 452cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 453cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 454cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][eye->size])(&(out->data[0][1]), 455cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), eye, 456cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->EyePlaneT, 0); 457cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 458cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_SPHERE_MAP: 459cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (indata=in->start,i=0; i<count ;i++,STRIDE_F(indata,in->stride)) 460cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = indata[1] * m[i] + 0.5F; 461cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 462cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_REFLECTION_MAP_NV: 463cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) 464cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 465cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 466cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 467cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 468cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 469cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 470cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 471cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 472cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 473cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 47408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad T texgen"); 475cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 476cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 477cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 478cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) { 479cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 480cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeR) { 481cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 482cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][obj->size])(&(out->data[0][2]), 483cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), obj, 484cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->ObjectPlaneR, 0); 485cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 486cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 487cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][eye->size])(&(out->data[0][2]), 488cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), eye, 489cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->EyePlaneR, 0); 490cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 491cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_REFLECTION_MAP_NV: 492cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) 493cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = f[i][2]; 494cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 495cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 496cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 497cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(norm, normal->stride)) { 498cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 499cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 500cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 501cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 502cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 50308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad R texgen"); 504cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 505cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 506cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 507cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & Q_BIT) { 508cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeQ) { 509cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 510cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][obj->size])(&(out->data[0][3]), 511cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), obj, 512cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->ObjectPlaneQ, 0); 513cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 514cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 515cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell (gl_dotprod_tab[0][eye->size])(&(out->data[0][3]), 516cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sizeof(out->data[0]), eye, 517cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->EyePlaneQ, 0); 518cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 519cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 52008836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad Q texgen"); 521cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 522cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 523cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 524cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 525cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 526cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 527cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLboolean run_texgen_stage( GLcontext *ctx, 528cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 529cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 530cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 531cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA( stage ); 532cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 533cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 534cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 535cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->_Enabled & ENABLE_TEXGEN(i)) { 536cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (stage->changed_inputs & (VERT_EYE | VERT_NORM | VERT_TEX(i))) 537cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i]( ctx, store, i ); 538cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 539cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->TexCoordPtr[i] = &store->texcoord[i]; 540cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 541cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 542cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_TRUE; 543cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 544cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 545cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 546cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 547cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 548cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLboolean run_validate_texgen_stage( GLcontext *ctx, 549cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 550cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 551cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 552cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 553cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 554cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) { 555cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; 556cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 557cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled) { 558cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint sz; 559cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 560cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) 561cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 4; 562cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & Q_BIT) 563cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 3; 564cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & T_BIT) 565cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 2; 566cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 567cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 1; 568cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 569cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenSize[i] = sz; 570cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenHoles[i] = (all_bits[sz] & ~texUnit->TexGenEnabled); 571cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen; 572cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 573cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) { 574cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) { 575cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_reflection_map_nv; 576cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 577cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) { 578cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_normal_map_nv; 579cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 580cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 581cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) && 582cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->_GenFlags == TEXGEN_SPHERE_MAP) { 583cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_sphere_map; 584cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 585cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 586cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 587cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 588cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_texgen_stage; 589cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 590cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 591cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 592cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 593cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void check_texgen( GLcontext *ctx, struct gl_pipeline_stage *stage ) 594cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 595cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 596cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 0; 597cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 598cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->_Enabled & ENABLE_TEXGEN_ANY) { 599cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint inputs = 0; 600cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint outputs = 0; 601cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 602cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_VERTICES) 603cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell inputs |= VERT_EYE; 604cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 605cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) 606cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell inputs |= VERT_NORM; 607cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 608cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 609cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->_Enabled & ENABLE_TEXGEN(i)) 610cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell { 611cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell outputs |= VERT_TEX(i); 612cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 613cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Need the original input in case it contains a Q coord: 614cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (sigh) 615cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 6165c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell/* if ((ctx->Texture.Unit[i]._ReallyEnabled|Q_BIT) & */ 6175c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell/* ~ctx->Texture.Unit[i].TexGenEnabled) */ 618cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell inputs |= VERT_TEX(i); 619cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 620cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Something for Feedback? */ 621cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 622cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 623cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (stage->private) 624cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 625cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 1; 626cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->inputs = inputs; 627cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->outputs = outputs; 628cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 629cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 630cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 631cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 632cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 633cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 634cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Called the first time stage->run() is invoked. 635cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 636cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLboolean alloc_texgen_data( GLcontext *ctx, 637cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 638cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 639cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 640cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store; 641cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 642cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 643cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->private = CALLOC(sizeof(*store)); 644cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store = TEXGEN_STAGE_DATA(stage); 645cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (!store) 646cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_FALSE; 647cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 648cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 64908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 650cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 651cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3); 652cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat)); 653cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 654cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Now validate and run the stage. 655cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 656cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 657cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 658cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 659cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 660cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 661cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void free_texgen_data( struct gl_pipeline_stage *stage ) 662cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 663cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 664cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 665cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 666cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 667cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store) { 668cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) 669cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->texcoord[i].data) 67008836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_free( &store->texcoord[i] ); 671cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 672cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 673cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_f) FREE( store->tmp_f ); 674cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_m) FREE( store->tmp_m ); 675cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FREE( store ); 676cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->private = 0; 677cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 678cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 679cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 680cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 681cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 682cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellconst struct gl_pipeline_stage _tnl_texgen_stage = 683cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 684cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell "texgen", 685cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to call check() */ 686cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to invalidate stored data */ 687cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0,0,0, /* active, inputs, outputs */ 688cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0,0, /* changed_inputs, private */ 689cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell free_texgen_data, /* destructor */ 690cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell check_texgen, /* check */ 691cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell alloc_texgen_data /* run -- initially set to alloc data */ 692cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 693cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 694cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 695