t_vb_texgen.c revision 92f9785c727ea10ff5f8dc9770f0e8f388fcea70
1cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 2cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Mesa 3-D graphics library 3610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul * Version: 5.1 4cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 527558a160a9fe91745728d7626995cd88f8fe339Brian Paul * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. 6cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 7cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Permission is hereby granted, free of charge, to any person obtaining a 8cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * copy of this software and associated documentation files (the "Software"), 9cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * to deal in the Software without restriction, including without limitation 10cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * and/or sell copies of the Software, and to permit persons to whom the 12cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Software is furnished to do so, subject to the following conditions: 13cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 14cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * The above copyright notice and this permission notice shall be included 15cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * in all copies or substantial portions of the Software. 16cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 17cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 24cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Authors: 2505a4b37707d2c598ea68c05d07a3d65bcbf5a076Brian Paul * Brian Paul 2605a4b37707d2c598ea68c05d07a3d65bcbf5a076Brian Paul * Keith Whitwell <keith@tungstengraphics.com> 27cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 28cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 29cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 30cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "glheader.h" 31cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "colormac.h" 32cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "context.h" 33cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "macros.h" 343c63452e64df7e10aa073c6c3b9492b1d7dabbb8Brian Paul#include "imports.h" 35cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "mtypes.h" 36cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 37cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "math/m_xform.h" 38cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 39cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_context.h" 40cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_pipeline.h" 41cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 42cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 43cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/*********************************************************************** 44cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Automatic texture coordinate generation (texgen) code. 45cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 46cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 47cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 48cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data; 49cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 50cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*texgen_func)( GLcontext *ctx, 51cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 52cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit); 53cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 55cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data { 56cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 57cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Per-texunit derived state. 58cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 59610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLuint TexgenSize[MAX_TEXTURE_COORD_UNITS]; 60610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLuint TexgenHoles[MAX_TEXTURE_COORD_UNITS]; 61610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul texgen_func TexgenFunc[MAX_TEXTURE_COORD_UNITS]; 62cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 63cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Temporary values used in texgen. 64cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 65cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*tmp_f)[3]; 66cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *tmp_m; 67cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 68cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Buffered outputs of the stage. 69cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 70610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; 71cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 72cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 73cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 74b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul#define TEXGEN_STAGE_DATA(stage) ((struct texgen_stage_data *)stage->privatePtr) 75cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 76cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 77cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 78cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLuint all_bits[5] = { 79cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 80cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_1, 81cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_2, 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_3, 83cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_4, 84cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 85cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 86cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#define VEC_SIZE_FLAGS (VEC_SIZE_1|VEC_SIZE_2|VEC_SIZE_3|VEC_SIZE_4) 87cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 88ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_M (TEXGEN_SPHERE_MAP) 89ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_F (TEXGEN_SPHERE_MAP | \ 90ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell TEXGEN_REFLECTION_MAP_NV) 91ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 92ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 93ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 945e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m3( GLfloat f[][3], GLfloat m[], 95bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 965e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes 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 104908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 10622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 107cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 108cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 109cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 110cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 111cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 112cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 113cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 114f9b1e5241facc8cf255c258082d5cb5b04783e93Brian Paul m[i] = 0.5F * _mesa_inv_sqrtf(m[i]); 115cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 116cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 117cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 118cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 119cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 120cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1215e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m2( GLfloat f[][3], GLfloat m[], 122bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1235e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ) 124cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 125cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 126cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 127cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 128cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 129cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 130cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 131cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 132908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 133cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 13422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 135cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 136cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 137cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 138cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 139cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 140cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 141cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 142cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 143f9b1e5241facc8cf255c258082d5cb5b04783e93Brian Paul m[i] = 0.5F * _mesa_inv_sqrtf(m[i]); 144cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 145cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 146cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 147cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 148cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 149cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1505e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughestypedef void (*build_m_func)( GLfloat f[][3], 1515e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes GLfloat m[], 152bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1535e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ); 154cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 155cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 156cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_m_func build_m_tab[5] = { 157cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 158cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 159cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m2, 160cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3, 161cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3 162cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 163cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 164cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 165cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* This is unusual in that we respect the stride of the output vector 166cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (f). This allows us to pass in either a texcoord vector4f, or a 16722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * temporary vector3f. 168cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 16922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f3( GLfloat *f, 170cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 171bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 172cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 173cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 174cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 175cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 176cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 177cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 178cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 179cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 180cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 181cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 182cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 18322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 184cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 185cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 186cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 187cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 188cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 189cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 19022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes STRIDE_F(f,fstride); 191cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 192cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 193cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 194cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 195cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 19622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f2( GLfloat *f, 197cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 198bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 199cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 200cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 201cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 202cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 203cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 204cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 205cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 206cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 207cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 208cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 209cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 21022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 211cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 212cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 213cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 214cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 215cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 216cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 217cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 218cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 219cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(f,fstride); 220cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 221cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 222cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 223cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 224cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*build_f_func)( GLfloat *f, 225cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 226bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal_vec, 227cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ); 228cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 229cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 230cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 23122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes/* Just treat 4-vectors as 3-vectors. 232cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 233cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_f_func build_f_tab[5] = { 234cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 235cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 236cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f2, 237cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f3, 23822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f3 239cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 240cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 241cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 242cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Special case texgen functions. 243cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 244cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_reflection_map_nv( GLcontext *ctx, 245cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 246cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 247cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 248cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 249cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 250cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 251cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 252cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f_tab[VB->EyePtr->size]( out->start, 253cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->stride, 25422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 25522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 25622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 257cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 258cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 259cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 260cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 26122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 2625e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 26322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 264cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 265cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 266cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 267cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 268cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 26922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 270cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 271cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 272cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 273cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 274cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_normal_map_nv( GLcontext *ctx, 275cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 276cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 277cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 278cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 279cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 280cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 281bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul GLvector4f *normal = VB->NormalPtr; 282cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->start; 283cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 284cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 285cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 286cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 287cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 288cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 289cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 290cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 291cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 292cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 293cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 294cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 295cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 296cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 297cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 29822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 2995e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 30022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 301cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 302cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 303cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 304cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 305cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 306cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 307cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 308cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 309cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_sphere_map( GLcontext *ctx, 310cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 311cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 312cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 313cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 314cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 315cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 316cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4]) out->start; 317cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 318cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 319cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 320cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 321cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3224e9676fb13f60ecdbc247b120031f18cd3febcb0Brian Paul/* _mesa_debug(NULL, "%s normstride %d eyestride %d\n", */ 323908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* __FUNCTION__, VB->NormalPtr->stride, */ 324908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* VB->EyePtr->stride); */ 325908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell 32622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes (build_m_tab[VB->EyePtr->size])( store->tmp_f, 32722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes store->tmp_m, 32822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 32922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 330cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 331cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 332cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0] * m[i] + 0.5F; 333cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = f[i][1] * m[i] + 0.5F; 334cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 335cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 336cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 337cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size,2); 338cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 339cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_2; 34022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size > 2) 3415e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[all_bits[in->size] & ~0x3]( out, in ); 342cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else { 343cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 2; 344cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_2; 345cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 346cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 347cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 348cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 349cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 350cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 35122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void texgen( GLcontext *ctx, 352cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 353cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 354cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 355cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 356cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &tnl->vb; 357cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 358cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 359cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 360cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *obj = VB->ObjPtr; 361cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye = VB->EyePtr; 362bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal = VB->NormalPtr; 363cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data; 364cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *indata; 365cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 366cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 367cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 368c765d446507b25f3531be3a116d1b5de598bb9adBrian Paul GLuint holes = 0; 369cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 370cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 371cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags & TEXGEN_NEED_M) { 37222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_m_tab[in->size]( store->tmp_f, store->tmp_m, normal, eye ); 373cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else if (texUnit->_GenFlags & TEXGEN_NEED_F) { 37422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f_tab[in->size]( (GLfloat *)store->tmp_f, 3, normal, eye ); 375cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 376cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3775c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (!in) { 3785c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell ASSERT(0); 3795c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in = out; 3805c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in->count = VB->Count; 3815c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell 3825c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = store->TexgenSize[unit]; 3835c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= texUnit->TexGenEnabled; 3845c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = VB->Count; 3855c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = store->TexgenHoles[unit]; 3865c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 3875c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell else { 388cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint copy = (all_bits[in->size] & ~texUnit->TexGenEnabled); 389cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (copy) 3905e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[copy]( out, in ); 391cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3925c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = MAX2(in->size, store->TexgenSize[unit]); 3935c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled; 3945c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = in->count; 39522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 3965c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = ~all_bits[in->size] & store->TexgenHoles[unit]; 397cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 398cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3995c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (holes) { 400c765d446507b25f3531be3a116d1b5de598bb9adBrian Paul if (holes & VEC_DIRTY_3) _mesa_vector4f_clean_elem(out, count, 3); 40108836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_2) _mesa_vector4f_clean_elem(out, count, 2); 40208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_1) _mesa_vector4f_clean_elem(out, count, 1); 40308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_0) _mesa_vector4f_clean_elem(out, count, 0); 4045c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 405cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 406cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & S_BIT) { 407cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 408cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeS) { 409cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4105e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( (GLfloat *)out->data, 4115e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4125e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneS ); 413cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 414cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4155e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( (GLfloat *)out->data, 4165e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4175e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneS ); 418cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 41922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 4205c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell for (indata=in->start,i=0 ; i<count ;i++, STRIDE_F(indata,in->stride)) 421cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = indata[0] * m[i] + 0.5F; 422cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 42322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 42422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 425cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 426cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 427cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 428cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 429cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 430cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 431cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 432cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 433cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 434cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 43508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad S texgen"); 436cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 43722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 438cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 439cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & T_BIT) { 440cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 441cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeT) { 442cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4435e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][1]), 4445e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4455e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneT ); 446cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 447cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4485e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][1]), 4495e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4505e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneT ); 45122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 45322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (indata=in->start,i=0; i<count ;i++,STRIDE_F(indata,in->stride)) 454cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = indata[1] * m[i] + 0.5F; 45522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 45722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 458cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 459cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 460cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 461cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 462cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 463cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 464cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 465cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 466cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 467cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 46808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad T texgen"); 469cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 470cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 471cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 472cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) { 473cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 474cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeR) { 475cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4765e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][2]), 4775e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4785e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneR ); 479cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 480cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4815e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][2]), 4825e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4835e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneR ); 484cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 48522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 48622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 487cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = f[i][2]; 488cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 489cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 490cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 491cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(norm, normal->stride)) { 492cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 493cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 494cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 495cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 496cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 49708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad R texgen"); 498cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 499cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 500cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 501cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & Q_BIT) { 502cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeQ) { 503cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 5045e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][3]), 5055e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 5065e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneQ ); 507cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 508cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 5095e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][3]), 5105e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 5115e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneQ ); 512cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 513cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 51408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad Q texgen"); 515cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 516cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 517cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 518cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 519cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 520cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_texgen_stage( GLcontext *ctx, 522cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 523cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 52422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 525cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA( stage ); 526cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 527cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52892f9785c727ea10ff5f8dc9770f0e8f388fcea70Brian Paul for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) 529ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) { 5304c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul if (stage->changed_inputs & (VERT_BIT_EYE | VERT_BIT_NORMAL | VERT_BIT_TEX(i))) 531cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i]( ctx, store, i ); 532cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 533cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->TexCoordPtr[i] = &store->texcoord[i]; 534cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 535cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 536cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_TRUE; 537cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 538cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 539cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 540cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 541cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_validate_texgen_stage( GLcontext *ctx, 543cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 544cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 545cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 546cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 547cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54892f9785c727ea10ff5f8dc9770f0e8f388fcea70Brian Paul for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { 549cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; 550cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 551cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled) { 552cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint sz; 553cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 554cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) 555cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 4; 556cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & Q_BIT) 557cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 3; 558cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & T_BIT) 559cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 2; 560cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 561cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 1; 56222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 563cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenSize[i] = sz; 564cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenHoles[i] = (all_bits[sz] & ~texUnit->TexGenEnabled); 565cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen; 56622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 567cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) { 568cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) { 569cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_reflection_map_nv; 570cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 571cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) { 572cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_normal_map_nv; 573cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 574cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 575cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) && 576cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->_GenFlags == TEXGEN_SPHERE_MAP) { 577cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_sphere_map; 578cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 579cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 580cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 581cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 582cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_texgen_stage; 583cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 584cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 585cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 586cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 587cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void check_texgen( GLcontext *ctx, struct gl_pipeline_stage *stage ) 588cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 589cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 590cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 0; 591cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 59286b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul if (ctx->Texture._TexGenEnabled && !ctx->VertexProgram.Enabled) { 593cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint inputs = 0; 594cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint outputs = 0; 595cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 596ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_OBJ_LINEAR) 5974c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_POS; 598ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 599ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) 6004c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_EYE; 601cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 602cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) 6034c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_NORMAL; 604cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 60592f9785c727ea10ff5f8dc9770f0e8f388fcea70Brian Paul for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) 606ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) 607cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell { 6084c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul outputs |= VERT_BIT_TEX(i); 609cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 610cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Need the original input in case it contains a Q coord: 611cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (sigh) 612cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 6134c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_TEX(i); 614cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 615cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Something for Feedback? */ 616cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 617cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 618b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul if (stage->privatePtr) 619cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 620cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 1; 621cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->inputs = inputs; 622cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->outputs = outputs; 623cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 624cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 62522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 626cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 627cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 628cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 629cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Called the first time stage->run() is invoked. 630cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 63122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean alloc_texgen_data( GLcontext *ctx, 632cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 633cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 63422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 635cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store; 636cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 637cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 638b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = CALLOC(sizeof(*store)); 639cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store = TEXGEN_STAGE_DATA(stage); 640cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (!store) 641cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_FALSE; 642cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 64392f9785c727ea10ff5f8dc9770f0e8f388fcea70Brian Paul for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) 64408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 645cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 646cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3); 647cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat)); 648cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 649cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Now validate and run the stage. 650cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 651cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 652cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 653cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 654cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 655cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 656cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void free_texgen_data( struct gl_pipeline_stage *stage ) 657cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 658cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 659cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 660cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 661cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 662cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store) { 663610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul for (i = 0 ; i < MAX_TEXTURE_COORD_UNITS ; i++) 66422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (store->texcoord[i].data) 66508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_free( &store->texcoord[i] ); 666cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 66722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 668cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_f) FREE( store->tmp_f ); 669cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_m) FREE( store->tmp_m ); 670cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FREE( store ); 671b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = NULL; 672cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 673cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 674cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 675cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 67622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 67722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesconst struct gl_pipeline_stage _tnl_texgen_stage = 67822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes{ 67986b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul "texgen", /* name */ 680cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to call check() */ 681cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to invalidate stored data */ 68286b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul GL_FALSE, /* active? */ 68386b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* inputs */ 68486b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* outputs */ 68586b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* changed_inputs */ 68686b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul NULL, /* private data */ 687cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell free_texgen_data, /* destructor */ 688cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell check_texgen, /* check */ 689cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell alloc_texgen_data /* run -- initially set to alloc data */ 690cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 691