t_vb_texgen.c revision 27558a160a9fe91745728d7626995cd88f8fe339
127558a160a9fe91745728d7626995cd88f8fe339Brian Paul/* $Id: t_vb_texgen.c,v 1.17 2003/03/01 01:50:27 brianp Exp $ */ 2cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* 4cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Mesa 3-D graphics library 5610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul * Version: 5.1 6cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * 727558a160a9fe91745728d7626995cd88f8fe339Brian Paul * Copyright (C) 1999-2003 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: 2705a4b37707d2c598ea68c05d07a3d65bcbf5a076Brian Paul * Brian Paul 2805a4b37707d2c598ea68c05d07a3d65bcbf5a076Brian Paul * Keith Whitwell <keith@tungstengraphics.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" 363c63452e64df7e10aa073c6c3b9492b1d7dabbb8Brian Paul#include "imports.h" 37cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "mtypes.h" 38cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 39cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "math/m_xform.h" 40cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 41cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_context.h" 42cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "t_pipeline.h" 43cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 44cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 45cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/*********************************************************************** 46cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * Automatic texture coordinate generation (texgen) code. 47cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 48cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 49cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 50cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data; 51cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*texgen_func)( GLcontext *ctx, 53cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 54cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit); 55cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 56cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 57cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstruct texgen_stage_data { 58cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 59cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Per-texunit derived state. 60cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 61610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLuint TexgenSize[MAX_TEXTURE_COORD_UNITS]; 62610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLuint TexgenHoles[MAX_TEXTURE_COORD_UNITS]; 63610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul texgen_func TexgenFunc[MAX_TEXTURE_COORD_UNITS]; 64cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 65cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Temporary values used in texgen. 66cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 67cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*tmp_f)[3]; 68cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *tmp_m; 69cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 70cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Buffered outputs of the stage. 71cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 72610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; 73cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 74cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 75cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 76b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul#define TEXGEN_STAGE_DATA(stage) ((struct texgen_stage_data *)stage->privatePtr) 77cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 78cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 79cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 80cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic GLuint all_bits[5] = { 81cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_1, 83cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_2, 84cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_3, 85cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VEC_SIZE_4, 86cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 87cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 88cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#define VEC_SIZE_FLAGS (VEC_SIZE_1|VEC_SIZE_2|VEC_SIZE_3|VEC_SIZE_4) 89cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 90ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_M (TEXGEN_SPHERE_MAP) 91ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell#define TEXGEN_NEED_F (TEXGEN_SPHERE_MAP | \ 92ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell TEXGEN_REFLECTION_MAP_NV) 93ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 94ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 95ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 965e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m3( GLfloat f[][3], GLfloat m[], 97bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 985e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ) 99cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 100cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 101cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = (GLfloat *)eye->start; 102cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 103cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 104cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 106908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 107cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 10822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 109cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 110cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 111cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 112cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 113cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 114cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 115cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 11627558a160a9fe91745728d7626995cd88f8fe339Brian Paul m[i] = 0.5F / SQRTF(m[i]); 117cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 118cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 119cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 120cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 121cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 122cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1235e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughesstatic void build_m2( GLfloat f[][3], GLfloat m[], 124bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1255e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ) 126cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 127cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 128cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 129cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 130cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 131cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 132cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 133cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 134908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { 135cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu, fx, fy, fz; 13622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 137cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 138cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 139cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 140cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fx = f[i][0] = u[0] - norm[0] * two_nu; 141cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fy = f[i][1] = u[1] - norm[1] * two_nu; 142cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell fz = f[i][2] = u[2] - norm[2] * two_nu; 143cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); 144cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (m[i] != 0.0F) { 14527558a160a9fe91745728d7626995cd88f8fe339Brian Paul m[i] = 0.5F / SQRTF(m[i]); 146cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 147cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 148cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 149cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 150cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 151cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1525e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughestypedef void (*build_m_func)( GLfloat f[][3], 1535e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes GLfloat m[], 154bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 1555e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes const GLvector4f *eye ); 156cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 157cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 158cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_m_func build_m_tab[5] = { 159cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 160cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 161cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m2, 162cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3, 163cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_m3 164cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 165cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 166cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 167cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* This is unusual in that we respect the stride of the output vector 168cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (f). This allows us to pass in either a texcoord vector4f, or a 16922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes * temporary vector3f. 170cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 17122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f3( GLfloat *f, 172cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 173bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 174cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 175cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 176cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 177cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 178cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 179cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 180cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 181cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 182cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 183cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 184cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 18522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_3V( u, coord ); 186cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 187cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 188cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 189cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 190cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 191cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 19222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes STRIDE_F(f,fstride); 193cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 194cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 195cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 196cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 197cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 19822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void build_f2( GLfloat *f, 199cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 200bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal, 201cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ) 202cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 203cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint stride = eye->stride; 204cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *coord = eye->start; 205cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = eye->count; 206cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *norm = normal->start; 207cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 208cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 209cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 210cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 211cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat u[3], two_nu; 21222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes COPY_2V( u, coord ); 213cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell u[2] = 0; 214cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell NORMALIZE_3FV( u ); 215cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell two_nu = 2.0F * DOT3(norm,u); 216cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[0] = u[0] - norm[0] * two_nu; 217cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[1] = u[1] - norm[1] * two_nu; 218cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell f[2] = u[2] - norm[2] * two_nu; 219cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 220cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(coord,stride); 221cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(f,fstride); 222cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell STRIDE_F(norm, normal->stride); 223cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 224cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 225cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 226cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwelltypedef void (*build_f_func)( GLfloat *f, 227cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint fstride, 228bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal_vec, 229cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye ); 230cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 231cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 232cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 23322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes/* Just treat 4-vectors as 3-vectors. 234cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 235cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic build_f_func build_f_tab[5] = { 236cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 237cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 0, 238cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f2, 239cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f3, 24022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f3 241cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 242cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 243cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 244cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Special case texgen functions. 245cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 246cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_reflection_map_nv( GLcontext *ctx, 247cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 248cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 249cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 250cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 251cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 252cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 253cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 254cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell build_f_tab[VB->EyePtr->size]( out->start, 255cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->stride, 25622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 25722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 25822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 259cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 260cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 261cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 262cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 26322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 2645e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 26522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 266cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 267cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 268cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 269cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 270cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 27122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 272cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 273cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 274cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 275cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 276cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_normal_map_nv( GLcontext *ctx, 277cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 278cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 279cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 280cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 281cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 282cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 283bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul GLvector4f *normal = VB->NormalPtr; 284cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->start; 285cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 286cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 287cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 288cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 289cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 290cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 291cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 292cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 293cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 294cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 295cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 296cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 297cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; 298cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 299cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size, 3); 30022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size == 4) 3015e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[0x8]( out, in ); 30222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 303cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else { 304cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_3; 305cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 3; 306cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 307cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 308cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 309cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 310cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 311cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void texgen_sphere_map( GLcontext *ctx, 312cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 313cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 314cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 315cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 316cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 317cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 318cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4]) out->start; 319cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 320cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 321cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 322cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 323cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3244e9676fb13f60ecdbc247b120031f18cd3febcb0Brian Paul/* _mesa_debug(NULL, "%s normstride %d eyestride %d\n", */ 325908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* __FUNCTION__, VB->NormalPtr->stride, */ 326908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell/* VB->EyePtr->stride); */ 327908be619fdba608b057ae512834dcc7a76aa3224Keith Whitwell 32822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes (build_m_tab[VB->EyePtr->size])( store->tmp_f, 32922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes store->tmp_m, 33022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->NormalPtr, 33122144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes VB->EyePtr ); 332cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 333cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++) { 334cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0] * m[i] + 0.5F; 335cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = f[i][1] * m[i] + 0.5F; 336cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 337cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 338cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (in) { 339cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = MAX2(in->size,2); 340cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 341cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_2; 34222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (in->size > 2) 3435e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[all_bits[in->size] & ~0x3]( out, in ); 344cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else { 345cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->size = 2; 346cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->flags |= VEC_SIZE_2; 347cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell out->count = in->count; 348cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 349cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 350cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 351cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 352cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 35322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic void texgen( GLcontext *ctx, 354cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store, 355cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint unit ) 356cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 357cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell TNLcontext *tnl = TNL_CONTEXT(ctx); 358cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct vertex_buffer *VB = &tnl->vb; 359cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *in = VB->TexCoordPtr[unit]; 360cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLvector4f *out = &store->texcoord[unit]; 361cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 362cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *obj = VB->ObjPtr; 363cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLvector4f *eye = VB->EyePtr; 364bd1a9dacf6a45e6aa6954eeb490d55ebcc80ace8Brian Paul const GLvector4f *normal = VB->NormalPtr; 365cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data; 366cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *indata; 367cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint count = VB->Count; 368cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat (*f)[3] = store->tmp_f; 369cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLfloat *m = store->tmp_m; 3705c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell GLuint holes = 0; 371cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 372cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 373cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags & TEXGEN_NEED_M) { 37422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_m_tab[in->size]( store->tmp_f, store->tmp_m, normal, eye ); 375cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } else if (texUnit->_GenFlags & TEXGEN_NEED_F) { 37622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes build_f_tab[in->size]( (GLfloat *)store->tmp_f, 3, normal, eye ); 377cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 378cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3795c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (!in) { 3805c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell ASSERT(0); 3815c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in = out; 3825c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell in->count = VB->Count; 3835c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell 3845c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = store->TexgenSize[unit]; 3855c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= texUnit->TexGenEnabled; 3865c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = VB->Count; 3875c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = store->TexgenHoles[unit]; 3885c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 3895c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell else { 390cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint copy = (all_bits[in->size] & ~texUnit->TexGenEnabled); 391cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (copy) 3925e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_copy_tab[copy]( out, in ); 393cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3945c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->size = MAX2(in->size, store->TexgenSize[unit]); 3955c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled; 3965c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell out->count = in->count; 39722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 3985c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell holes = ~all_bits[in->size] & store->TexgenHoles[unit]; 399cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 400cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 4015c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell if (holes) { 40208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_2) _mesa_vector4f_clean_elem(out, count, 2); 40308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_1) _mesa_vector4f_clean_elem(out, count, 1); 40408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul if (holes & VEC_DIRTY_0) _mesa_vector4f_clean_elem(out, count, 0); 4055c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell } 406cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 407cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & S_BIT) { 408cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 409cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeS) { 410cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4115e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( (GLfloat *)out->data, 4125e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4135e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneS ); 414cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 415cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4165e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( (GLfloat *)out->data, 4175e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4185e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneS ); 419cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 42022144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 4215c1e7fa6ee72f4403d9ec9d12830dd689b966e71Keith Whitwell for (indata=in->start,i=0 ; i<count ;i++, STRIDE_F(indata,in->stride)) 422cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = indata[0] * m[i] + 0.5F; 423cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 42422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 42522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 426cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 427cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 428cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 429cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 430cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 431cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = norm[0]; 432cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 433cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 434cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 435cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 43608836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad S texgen"); 437cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 43822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes } 439cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 440cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & T_BIT) { 441cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 442cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeT) { 443cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4445e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][1]), 4455e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4465e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneT ); 447cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 448cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4495e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][1]), 4505e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4515e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneT ); 45222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_SPHERE_MAP: 45422144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (indata=in->start,i=0; i<count ;i++,STRIDE_F(indata,in->stride)) 455cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = indata[1] * m[i] + 0.5F; 45622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes break; 45722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 45822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 459cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][0] = f[i][0]; 460cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 461cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 462cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 463cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { 464cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][1] = norm[1]; 465cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 466cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 467cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 468cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 46908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad T texgen"); 470cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 471cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 472cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 473cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) { 474cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 475cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeR) { 476cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 4775e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][2]), 4785e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 4795e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneR ); 480cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 481cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 4825e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][2]), 4835e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 4845e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneR ); 485cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 48622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes case GL_REFLECTION_MAP_NV: 48722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i=0;i<count;i++) 488cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = f[i][2]; 489cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 490cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_NORMAL_MAP_NV: { 491cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell const GLfloat *norm = normal->start; 492cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i=0;i<count;i++,STRIDE_F(norm, normal->stride)) { 493cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texcoord[i][2] = norm[2]; 494cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 495cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 496cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 497cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 49808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad R texgen"); 499cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 500cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 501cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 502cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & Q_BIT) { 503cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell switch (texUnit->GenModeQ) { 504cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_OBJECT_LINEAR: 5055e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[obj->size]( &(out->data[0][3]), 5065e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), obj, 5075e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->ObjectPlaneQ ); 508cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 509cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell case GL_EYE_LINEAR: 5105e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes _mesa_dotprod_tab[eye->size]( &(out->data[0][3]), 5115e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes sizeof(out->data[0]), eye, 5125e23af22f708a66695c0e44e599c26f02d8d4dcdGareth Hughes texUnit->EyePlaneQ ); 513cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell break; 514cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell default: 51508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(ctx, "Bad Q texgen"); 516cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 517cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 518cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 519cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 520cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 521cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_texgen_stage( GLcontext *ctx, 523cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 524cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 52522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 526cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA( stage ); 527cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 528cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 52922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 530ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) { 5314c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul if (stage->changed_inputs & (VERT_BIT_EYE | VERT_BIT_NORMAL | VERT_BIT_TEX(i))) 532cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i]( ctx, store, i ); 533cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 534cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell VB->TexCoordPtr[i] = &store->texcoord[i]; 535cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 536cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 537cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_TRUE; 538cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 539cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 540cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 541cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 542cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 54322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean run_validate_texgen_stage( GLcontext *ctx, 544cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 545cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 546cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 547cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 548cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 549cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) { 550cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; 551cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 552cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled) { 553cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint sz; 554cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 555cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled & R_BIT) 556cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 4; 557cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & Q_BIT) 558cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 3; 559cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled & T_BIT) 560cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 2; 561cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 562cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell sz = 1; 56322144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 564cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenSize[i] = sz; 565cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenHoles[i] = (all_bits[sz] & ~texUnit->TexGenEnabled); 566cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen; 56722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 568cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) { 569cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) { 570cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_reflection_map_nv; 571cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 572cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) { 573cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_normal_map_nv; 574cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 575cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 576cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) && 577cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell texUnit->_GenFlags == TEXGEN_SPHERE_MAP) { 578cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->TexgenFunc[i] = texgen_sphere_map; 579cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 580cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 581cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 582cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 583cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_texgen_stage; 584cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 585cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 586cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 587cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 588cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void check_texgen( GLcontext *ctx, struct gl_pipeline_stage *stage ) 589cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 590cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 591cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 0; 592cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 59386b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul if (ctx->Texture._TexGenEnabled && !ctx->VertexProgram.Enabled) { 594cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint inputs = 0; 595cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint outputs = 0; 596cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 597ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_OBJ_LINEAR) 5984c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_POS; 599ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell 600ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) 6014c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_EYE; 602cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 603cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) 6044c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_NORMAL; 605cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 60622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 607ed39a43b8cb2e1cf69b097fc89365cde470ebf51Keith Whitwell if (ctx->Texture._TexGenEnabled & ENABLE_TEXGEN(i)) 608cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell { 6094c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul outputs |= VERT_BIT_TEX(i); 610cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 611cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Need the original input in case it contains a Q coord: 612cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell * (sigh) 613cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 6144c8fadc6d996c8c433826c4c763104b7d69cf7e5Brian Paul inputs |= VERT_BIT_TEX(i); 615cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 616cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Something for Feedback? */ 617cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 618cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 619b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul if (stage->privatePtr) 620cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 621cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->active = 1; 622cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->inputs = inputs; 623cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->outputs = outputs; 624cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 625cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 62622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 627cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 628cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 629cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 630cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell/* Called the first time stage->run() is invoked. 631cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 63222144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesstatic GLboolean alloc_texgen_data( GLcontext *ctx, 633cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct gl_pipeline_stage *stage ) 634cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 63522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; 636cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store; 637cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 638cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 639b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = CALLOC(sizeof(*store)); 640cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store = TEXGEN_STAGE_DATA(stage); 641cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (!store) 642cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return GL_FALSE; 643cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 644cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) 64508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); 646cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 647cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3); 648cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat)); 649cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 650cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell /* Now validate and run the stage. 651cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell */ 652cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell stage->run = run_validate_texgen_stage; 653cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return stage->run( ctx, stage ); 654cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 655cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 656cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 657cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwellstatic void free_texgen_data( struct gl_pipeline_stage *stage ) 658cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 659cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell{ 660cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); 661cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell GLuint i; 662cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 663cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store) { 664610d59981a9f43fefe29b34ef19c184d28e2bef5Brian Paul for (i = 0 ; i < MAX_TEXTURE_COORD_UNITS ; i++) 66522144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (store->texcoord[i].data) 66608836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_vector4f_free( &store->texcoord[i] ); 667cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 66822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 669cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_f) FREE( store->tmp_f ); 670cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (store->tmp_m) FREE( store->tmp_m ); 671cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FREE( store ); 672b51b0a847d7e7daaea69f77ab569086ef81c24a2Brian Paul stage->privatePtr = NULL; 673cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell } 674cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell} 675cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 676cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 67722144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes 67822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughesconst struct gl_pipeline_stage _tnl_texgen_stage = 67922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes{ 68086b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul "texgen", /* name */ 681cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to call check() */ 682cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _NEW_TEXTURE, /* when to invalidate stored data */ 68386b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul GL_FALSE, /* active? */ 68486b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* inputs */ 68586b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* outputs */ 68686b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul 0, /* changed_inputs */ 68786b842790b720cd6b1499ce8edca8a4e9c8dc029Brian Paul NULL, /* private data */ 688cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell free_texgen_data, /* destructor */ 689cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell check_texgen, /* check */ 690cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell alloc_texgen_data /* run -- initially set to alloc data */ 691cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell}; 692