/* -*- mode: C; tab-width:8; c-basic-offset:2 -*- */ /* * Mesa 3-D graphics library * Version: 3.1 * * Copyright (C) 1999 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the * terms stated above. * * Thank you for your contribution, David! * * Please make note of the above copyright/license statement. If you * contributed code or bug fixes to this code under the previous (GNU * Library) license and object to the new license, your code will be * removed at your request. Please see the Mesa docs/COPYRIGHT file * for more information. * * Additional Mesa/3Dfx driver developers: * Daryll Strauss * Keith Whitwell * * See fxapi.h for more revision/author details. */ /* fxsetup.c - 3Dfx VooDoo rendering mode setup functions */ #ifdef HAVE_CONFIG_H #include "conf.h" #endif #if defined(FX) #include "fxdrv.h" #include "enums.h" static GLuint fxGetTexSetConfiguration(GLcontext *ctx, struct gl_texture_object *tObj0, struct gl_texture_object *tObj1); static void fxSetupTextureSingleTMU_NoLock(GLcontext *ctx, GLuint textureset); static void fxSetupDoubleTMU_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj0, struct gl_texture_object *tObj1); static void fxSetupTexture_NoLock(GLcontext *ctx); static void fxSetupTexture(GLcontext *ctx); static void fxSetupBlend(GLcontext *ctx); static void fxSetupDepthTest(GLcontext *ctx); static void fxFogTableGenerate(GLcontext *ctx); static void fxSetupFog(GLcontext *ctx, GLboolean forceTableRebuild); static void fxSetupScissor(GLcontext *ctx); static void fxSetupCull(GLcontext *ctx); static void gl_print_fx_state_flags( const char *msg, GLuint flags); static GLboolean fxMultipassBlend(struct vertex_buffer *, GLuint); static GLboolean fxMultipassTexture( struct vertex_buffer *, GLuint ); static void fxTexValidate(GLcontext *ctx, struct gl_texture_object *tObj) { tfxTexInfo *ti=fxTMGetTexInfo(tObj); GLint minl, maxl; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxTexValidate(...) Start\n"); } if(ti->validated) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxTexValidate(...) End (validated=GL_TRUE)\n"); } return; } ti->tObj=tObj; minl=ti->minLevel=tObj->BaseLevel; maxl=ti->maxLevel=MIN2(tObj->MaxLevel,tObj->Image[0]->MaxLog2); fxTexGetInfo(tObj->Image[minl]->Width, tObj->Image[minl]->Height, &(FX_largeLodLog2(ti->info)), &(FX_aspectRatioLog2(ti->info)), &(ti->sScale), &(ti->tScale), &(ti->int_sScale), &(ti->int_tScale), NULL, NULL); if((tObj->MinFilter!=GL_NEAREST) && (tObj->MinFilter!=GL_LINEAR)) fxTexGetInfo(tObj->Image[maxl]->Width,tObj->Image[maxl]->Height, &(FX_smallLodLog2(ti->info)),NULL, NULL,NULL, NULL,NULL, NULL,NULL); else FX_smallLodLog2(ti->info)=FX_largeLodLog2(ti->info); fxTexGetFormat(tObj->Image[minl]->Format,&(ti->info.format),&(ti->baseLevelInternalFormat)); switch (tObj->WrapS) { case GL_CLAMP_TO_EDGE: /* What's this really mean compared to GL_CLAMP? */ case GL_CLAMP: ti->sClamp=1; break; case GL_REPEAT: ti->sClamp=0; break; default: ; /* silence compiler warning */ } switch (tObj->WrapT) { case GL_CLAMP_TO_EDGE: /* What's this really mean compared to GL_CLAMP? */ case GL_CLAMP: ti->tClamp=1; break; case GL_REPEAT: ti->tClamp=0; break; default: ; /* silence compiler warning */ } ti->validated=GL_TRUE; ti->info.data=NULL; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxTexValidate(...) End\n"); } } static void fxPrintUnitsMode( const char *msg, GLuint mode ) { fprintf(stderr, "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", msg, mode, (mode & FX_UM_E0_REPLACE) ? "E0_REPLACE, " : "", (mode & FX_UM_E0_MODULATE) ? "E0_MODULATE, " : "", (mode & FX_UM_E0_DECAL) ? "E0_DECAL, " : "", (mode & FX_UM_E0_BLEND) ? "E0_BLEND, " : "", (mode & FX_UM_E1_REPLACE) ? "E1_REPLACE, " : "", (mode & FX_UM_E1_MODULATE) ? "E1_MODULATE, " : "", (mode & FX_UM_E1_DECAL) ? "E1_DECAL, " : "", (mode & FX_UM_E1_BLEND) ? "E1_BLEND, " : "", (mode & FX_UM_E0_ALPHA) ? "E0_ALPHA, " : "", (mode & FX_UM_E0_LUMINANCE) ? "E0_LUMINANCE, " : "", (mode & FX_UM_E0_LUMINANCE_ALPHA) ? "E0_LUMINANCE_ALPHA, " : "", (mode & FX_UM_E0_INTENSITY) ? "E0_INTENSITY, " : "", (mode & FX_UM_E0_RGB) ? "E0_RGB, " : "", (mode & FX_UM_E0_RGBA) ? "E0_RGBA, " : "", (mode & FX_UM_E1_ALPHA) ? "E1_ALPHA, " : "", (mode & FX_UM_E1_LUMINANCE) ? "E1_LUMINANCE, " : "", (mode & FX_UM_E1_LUMINANCE_ALPHA) ? "E1_LUMINANCE_ALPHA, " : "", (mode & FX_UM_E1_INTENSITY) ? "E1_INTENSITY, " : "", (mode & FX_UM_E1_RGB) ? "E1_RGB, " : "", (mode & FX_UM_E1_RGBA) ? "E1_RGBA, " : "", (mode & FX_UM_COLOR_ITERATED) ? "COLOR_ITERATED, " : "", (mode & FX_UM_COLOR_CONSTANT) ? "COLOR_CONSTANT, " : "", (mode & FX_UM_ALPHA_ITERATED) ? "ALPHA_ITERATED, " : "", (mode & FX_UM_ALPHA_CONSTANT) ? "ALPHA_CONSTANT, " : ""); } static GLuint fxGetTexSetConfiguration(GLcontext *ctx, struct gl_texture_object *tObj0, struct gl_texture_object *tObj1) { GLuint unitsmode=0; GLuint envmode=0; GLuint ifmt=0; if((ctx->Light.ShadeModel==GL_SMOOTH) || (ctx->Point.SmoothFlag) || (ctx->Line.SmoothFlag) || (ctx->Polygon.SmoothFlag)) unitsmode|=FX_UM_ALPHA_ITERATED; else unitsmode|=FX_UM_ALPHA_CONSTANT; if(ctx->Light.ShadeModel==GL_SMOOTH) unitsmode|=FX_UM_COLOR_ITERATED; else unitsmode|=FX_UM_COLOR_CONSTANT; /* OpenGL Feeds Texture 0 into Texture 1 Glide Feeds Texture 1 into Texture 0 */ if(tObj0) { tfxTexInfo *ti0=fxTMGetTexInfo(tObj0); switch(ti0->baseLevelInternalFormat) { case GL_ALPHA: ifmt|=FX_UM_E0_ALPHA; break; case GL_LUMINANCE: ifmt|=FX_UM_E0_LUMINANCE; break; case GL_LUMINANCE_ALPHA: ifmt|=FX_UM_E0_LUMINANCE_ALPHA; break; case GL_INTENSITY: ifmt|=FX_UM_E0_INTENSITY; break; case GL_RGB: ifmt|=FX_UM_E0_RGB; break; case GL_RGBA: ifmt|=FX_UM_E0_RGBA; break; } switch(ctx->Texture.Unit[0].EnvMode) { case GL_DECAL: envmode|=FX_UM_E0_DECAL; break; case GL_MODULATE: envmode|=FX_UM_E0_MODULATE; break; case GL_REPLACE: envmode|=FX_UM_E0_REPLACE; break; case GL_BLEND: envmode|=FX_UM_E0_BLEND; break; case GL_ADD: envmode|=FX_UM_E0_ADD; break; default: /* do nothing */ break; } } if(tObj1) { tfxTexInfo *ti1=fxTMGetTexInfo(tObj1); switch(ti1->baseLevelInternalFormat) { case GL_ALPHA: ifmt|=FX_UM_E1_ALPHA; break; case GL_LUMINANCE: ifmt|=FX_UM_E1_LUMINANCE; break; case GL_LUMINANCE_ALPHA: ifmt|=FX_UM_E1_LUMINANCE_ALPHA; break; case GL_INTENSITY: ifmt|=FX_UM_E1_INTENSITY; break; case GL_RGB: ifmt|=FX_UM_E1_RGB; break; case GL_RGBA: ifmt|=FX_UM_E1_RGBA; break; default: /* do nothing */ break; } switch(ctx->Texture.Unit[1].EnvMode) { case GL_DECAL: envmode|=FX_UM_E1_DECAL; break; case GL_MODULATE: envmode|=FX_UM_E1_MODULATE; break; case GL_REPLACE: envmode|=FX_UM_E1_REPLACE; break; case GL_BLEND: envmode|=FX_UM_E1_BLEND; break; case GL_ADD: envmode|=FX_UM_E1_ADD; break; default: /* do nothing */ break; } } unitsmode|=(ifmt | envmode); if (MESA_VERBOSE & (VERBOSE_DRIVER|VERBOSE_TEXTURE)) fxPrintUnitsMode("unitsmode", unitsmode); return unitsmode; } /************************************************************************/ /************************* Rendering Mode SetUp *************************/ /************************************************************************/ /************************* Single Texture Set ***************************/ static void fxSetupSingleTMU_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj) { tfxTexInfo *ti=fxTMGetTexInfo(tObj); int tmu; /* Make sure we're not loaded incorrectly */ if (ti->isInTM) { if (ti->LODblend) { if (ti->whichTMU!=FX_TMU_SPLIT) fxTMMoveOutTM(fxMesa, tObj); } else { if (ti->whichTMU==FX_TMU_SPLIT) fxTMMoveOutTM(fxMesa, tObj); } } /* Make sure we're loaded correctly */ if (!ti->isInTM) { if (ti->LODblend) fxTMMoveInTM_NoLock(fxMesa,tObj,FX_TMU_SPLIT); else { if (fxMesa->haveTwoTMUs) { if (fxMesa->freeTexMem[FX_TMU0] > FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_BOTH, &(ti->info))) { fxTMMoveInTM_NoLock(fxMesa,tObj, FX_TMU0); } else { fxTMMoveInTM_NoLock(fxMesa,tObj, FX_TMU1); } } else fxTMMoveInTM_NoLock(fxMesa,tObj,FX_TMU0); } } if (ti->LODblend && ti->whichTMU == FX_TMU_SPLIT) { if ((ti->info.format==GR_TEXFMT_P_8) && (!fxMesa->haveGlobalPaletteTexture)) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: uploading texture palette\n"); } FX_grTexDownloadTable_NoLock(GR_TMU0,GR_TEXTABLE_PALETTE,&(ti->palette)); FX_grTexDownloadTable_NoLock(GR_TMU1,GR_TEXTABLE_PALETTE,&(ti->palette)); } FX_grTexClampMode_NoLock(GR_TMU0,ti->sClamp,ti->tClamp); FX_grTexClampMode_NoLock(GR_TMU1,ti->sClamp,ti->tClamp); FX_grTexFilterMode_NoLock(GR_TMU0,ti->minFilt,ti->maxFilt); FX_grTexFilterMode_NoLock(GR_TMU1,ti->minFilt,ti->maxFilt); FX_grTexMipMapMode_NoLock(GR_TMU0,ti->mmMode,ti->LODblend); FX_grTexMipMapMode_NoLock(GR_TMU1,ti->mmMode,ti->LODblend); FX_grTexSource_NoLock(GR_TMU0,ti->tm[FX_TMU0]->startAddr, GR_MIPMAPLEVELMASK_ODD,&(ti->info)); FX_grTexSource_NoLock(GR_TMU1,ti->tm[FX_TMU1]->startAddr, GR_MIPMAPLEVELMASK_EVEN,&(ti->info)); } else { if (ti->whichTMU==FX_TMU_BOTH) tmu=FX_TMU0; else tmu=ti->whichTMU; if((ti->info.format==GR_TEXFMT_P_8) && (!fxMesa->haveGlobalPaletteTexture)) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: uploading texture palette\n"); } FX_grTexDownloadTable_NoLock(tmu, GR_TEXTABLE_PALETTE, &(ti->palette)); } /* KW: The alternative is to do the download to the other tmu. If * we get to this point, I think it means we are thrashing the * texture memory, so perhaps it's not a good idea. */ if (ti->LODblend && (MESA_VERBOSE&VERBOSE_DRIVER)) fprintf(stderr, "fxmesa: not blending texture - only on one tmu\n"); FX_grTexClampMode_NoLock(tmu, ti->sClamp, ti->tClamp); FX_grTexFilterMode_NoLock(tmu, ti->minFilt, ti->maxFilt); FX_grTexMipMapMode_NoLock(tmu, ti->mmMode, FXFALSE); FX_grTexSource_NoLock(tmu, ti->tm[tmu]->startAddr, GR_MIPMAPLEVELMASK_BOTH, &(ti->info)); } } static void fxSelectSingleTMUSrc_NoLock(fxMesaContext fxMesa, GLint tmu, FxBool LODblend) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSelectSingleTMUSrc(%d,%d)\n",tmu,LODblend); } if(LODblend) { FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND, GR_COMBINE_FACTOR_ONE_MINUS_LOD_FRACTION, GR_COMBINE_FUNCTION_BLEND, GR_COMBINE_FACTOR_ONE_MINUS_LOD_FRACTION, FXFALSE,FXFALSE); FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); fxMesa->tmuSrc=FX_TMU_SPLIT; } else { if (tmu!=FX_TMU1) { FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_ZERO, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_ZERO, GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); fxMesa->tmuSrc=FX_TMU0; } else { FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); /* GR_COMBINE_FUNCTION_SCALE_OTHER doesn't work ?!? */ FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND, GR_COMBINE_FACTOR_ONE, GR_COMBINE_FUNCTION_BLEND, GR_COMBINE_FACTOR_ONE, FXFALSE,FXFALSE); fxMesa->tmuSrc=FX_TMU1; } } } static void fxSetupTextureSingleTMU_NoLock(GLcontext *ctx, GLuint textureset) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; GrCombineLocal_t localc,locala; GLuint unitsmode; GLint ifmt; tfxTexInfo *ti; struct gl_texture_object *tObj=ctx->Texture.Unit[textureset].CurrentD[2]; int tmu; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTextureSingleTMU(...) Start\n"); } ti=fxTMGetTexInfo(tObj); fxTexValidate(ctx,tObj); fxSetupSingleTMU_NoLock(fxMesa,tObj); if (ti->whichTMU==FX_TMU_BOTH) tmu=FX_TMU0; else tmu=ti->whichTMU; if (fxMesa->tmuSrc!=tmu) fxSelectSingleTMUSrc_NoLock(fxMesa, tmu, ti->LODblend); if(textureset==0 || !fxMesa->haveTwoTMUs) unitsmode=fxGetTexSetConfiguration(ctx,tObj,NULL); else unitsmode=fxGetTexSetConfiguration(ctx,NULL,tObj); if(fxMesa->lastUnitsMode==unitsmode) return; fxMesa->lastUnitsMode=unitsmode; fxMesa->stw_hint_state = 0; FX_grHints_NoLock(GR_HINT_STWHINT,0); ifmt=ti->baseLevelInternalFormat; if(unitsmode & FX_UM_ALPHA_ITERATED) locala=GR_COMBINE_LOCAL_ITERATED; else locala=GR_COMBINE_LOCAL_CONSTANT; if(unitsmode & FX_UM_COLOR_ITERATED) localc=GR_COMBINE_LOCAL_ITERATED; else localc=GR_COMBINE_LOCAL_CONSTANT; if (MESA_VERBOSE & (VERBOSE_DRIVER|VERBOSE_TEXTURE)) fprintf(stderr, "fxMesa: fxSetupTextureSingleTMU, envmode is %s\n", gl_lookup_enum_by_nr(ctx->Texture.Unit[textureset].EnvMode)); switch(ctx->Texture.Unit[textureset].EnvMode) { case GL_DECAL: FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_BLEND, GR_COMBINE_FACTOR_TEXTURE_ALPHA, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; case GL_MODULATE: FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE); if(ifmt==GL_ALPHA) FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, localc, GR_COMBINE_OTHER_NONE, FXFALSE); else FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; case GL_BLEND: #if 0 FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE); if (ifmt==GL_ALPHA) FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, localc, GR_COMBINE_OTHER_NONE, FXFALSE); else FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, GR_COMBINE_FACTOR_LOCAL, localc, GR_COMBINE_OTHER_TEXTURE, FXTRUE); ctx->Driver.MultipassFunc = fxMultipassBlend; #else #ifndef FX_SILENT fprintf(stderr,"fx Driver: GL_BLEND not yet supported\n"); #endif #endif break; case GL_REPLACE: if((ifmt==GL_RGB) || (ifmt==GL_LUMINANCE)) FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); else FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE); if(ifmt==GL_ALPHA) FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, localc, GR_COMBINE_OTHER_NONE, FXFALSE); else FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; default: #ifndef FX_SILENT fprintf(stderr,"fx Driver: %x Texture.EnvMode not yet supported\n",ctx->Texture.Unit[textureset].EnvMode); #endif break; } if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTextureSingleTMU(...) End\n"); } } static void fxSetupTextureSingleTMU(GLcontext *ctx, GLuint textureset) { BEGIN_BOARD_LOCK(); fxSetupTextureSingleTMU_NoLock(ctx, textureset); END_BOARD_LOCK(); } /************************* Double Texture Set ***************************/ static void fxSetupDoubleTMU_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj0, struct gl_texture_object *tObj1) { #define T0_NOT_IN_TMU 0x01 #define T1_NOT_IN_TMU 0x02 #define T0_IN_TMU0 0x04 #define T1_IN_TMU0 0x08 #define T0_IN_TMU1 0x10 #define T1_IN_TMU1 0x20 tfxTexInfo *ti0=fxTMGetTexInfo(tObj0); tfxTexInfo *ti1=fxTMGetTexInfo(tObj1); GLuint tstate=0; int tmu0=0, tmu1=1; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupDoubleTMU(...)\n"); } /* We shouldn't need to do this. There is something wrong with mutlitexturing when the TMUs are swapped. So, we're forcing them to always be loaded correctly. !!! */ if (ti0->whichTMU==FX_TMU1) fxTMMoveOutTM_NoLock(fxMesa, tObj0); if (ti1->whichTMU==FX_TMU0) fxTMMoveOutTM_NoLock(fxMesa, tObj1); if (ti0->isInTM) { switch (ti0->whichTMU) { case FX_TMU0: tstate|=T0_IN_TMU0; break; case FX_TMU1: tstate|=T0_IN_TMU1; break; case FX_TMU_BOTH: tstate|=T0_IN_TMU0|T0_IN_TMU1; break; case FX_TMU_SPLIT: tstate|=T0_NOT_IN_TMU; break; } } else tstate|=T0_NOT_IN_TMU; if (ti1->isInTM) { switch (ti1->whichTMU) { case FX_TMU0: tstate|=T1_IN_TMU0; break; case FX_TMU1: tstate|=T1_IN_TMU1; break; case FX_TMU_BOTH: tstate|=T1_IN_TMU0|T1_IN_TMU1; break; case FX_TMU_SPLIT: tstate|=T1_NOT_IN_TMU; break; } } else tstate|=T1_NOT_IN_TMU; ti0->lastTimeUsed=fxMesa->texBindNumber; ti1->lastTimeUsed=fxMesa->texBindNumber; /* Move texture maps into TMUs */ if (!(((tstate&T0_IN_TMU0) && (tstate&T1_IN_TMU1)) || ((tstate&T0_IN_TMU1) && (tstate&T1_IN_TMU0)))) { if (tObj0==tObj1) fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU_BOTH); else { /* Find the minimal way to correct the situation */ if ((tstate&T0_IN_TMU0) || (tstate&T1_IN_TMU1)) { /* We have one in the standard order, setup the other */ if (tstate&T0_IN_TMU0) { /* T0 is in TMU0, put T1 in TMU1 */ fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU1); } else { fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU0); } /* tmu0 and tmu1 are setup */ } else if ((tstate&T0_IN_TMU1) || (tstate&T1_IN_TMU0)) { /* we have one in the reverse order, setup the other */ if (tstate&T1_IN_TMU0) { /* T1 is in TMU0, put T0 in TMU1 */ fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU1); } else { fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU0); } tmu0=1; tmu1=0; } else { /* Nothing is loaded */ fxTMMoveInTM_NoLock(fxMesa, tObj0, FX_TMU0); fxTMMoveInTM_NoLock(fxMesa, tObj1, FX_TMU1); /* tmu0 and tmu1 are setup */ } } } if (!fxMesa->haveGlobalPaletteTexture) { if (ti0->info.format==GR_TEXFMT_P_8) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: uploading texture palette TMU0\n"); } FX_grTexDownloadTable_NoLock(tmu0, GR_TEXTABLE_PALETTE, &(ti0->palette)); } if (ti1->info.format==GR_TEXFMT_P_8) { if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: uploading texture palette TMU1\n"); } FX_grTexDownloadTable_NoLock(tmu1, GR_TEXTABLE_PALETTE, &(ti1->palette)); } } FX_grTexSource_NoLock(tmu0, ti0->tm[tmu0]->startAddr, GR_MIPMAPLEVELMASK_BOTH, &(ti0->info)); FX_grTexClampMode_NoLock(tmu0, ti0->sClamp, ti0->tClamp); FX_grTexFilterMode_NoLock(tmu0, ti0->minFilt, ti0->maxFilt); FX_grTexMipMapMode_NoLock(tmu0, ti0->mmMode, FXFALSE); FX_grTexSource_NoLock(tmu1, ti1->tm[tmu1]->startAddr, GR_MIPMAPLEVELMASK_BOTH, &(ti1->info)); FX_grTexClampMode_NoLock(tmu1, ti1->sClamp, ti1->tClamp); FX_grTexFilterMode_NoLock(tmu1, ti1->minFilt, ti1->maxFilt); FX_grTexMipMapMode_NoLock(tmu1, ti1->mmMode, FXFALSE); #undef T0_NOT_IN_TMU #undef T1_NOT_IN_TMU #undef T0_IN_TMU0 #undef T1_IN_TMU0 #undef T0_IN_TMU1 #undef T1_IN_TMU1 } static void fxSetupTextureDoubleTMU_NoLock(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; GrCombineLocal_t localc,locala; tfxTexInfo *ti0,*ti1; struct gl_texture_object *tObj0=ctx->Texture.Unit[0].CurrentD[2]; struct gl_texture_object *tObj1=ctx->Texture.Unit[1].CurrentD[2]; GLuint envmode,ifmt,unitsmode; int tmu0=0, tmu1=1; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTextureDoubleTMU(...) Start\n"); } ti0=fxTMGetTexInfo(tObj0); fxTexValidate(ctx,tObj0); ti1=fxTMGetTexInfo(tObj1); fxTexValidate(ctx,tObj1); fxSetupDoubleTMU_NoLock(fxMesa,tObj0,tObj1); unitsmode=fxGetTexSetConfiguration(ctx,tObj0,tObj1); if(fxMesa->lastUnitsMode==unitsmode) return; fxMesa->lastUnitsMode=unitsmode; fxMesa->stw_hint_state |= GR_STWHINT_ST_DIFF_TMU1; FX_grHints_NoLock(GR_HINT_STWHINT, fxMesa->stw_hint_state); envmode=unitsmode & FX_UM_E_ENVMODE; ifmt=unitsmode & FX_UM_E_IFMT; if(unitsmode & FX_UM_ALPHA_ITERATED) locala=GR_COMBINE_LOCAL_ITERATED; else locala=GR_COMBINE_LOCAL_CONSTANT; if(unitsmode & FX_UM_COLOR_ITERATED) localc=GR_COMBINE_LOCAL_ITERATED; else localc=GR_COMBINE_LOCAL_CONSTANT; if (MESA_VERBOSE & (VERBOSE_DRIVER|VERBOSE_TEXTURE)) fprintf(stderr, "fxMesa: fxSetupTextureDoubleTMU, envmode is %s/%s\n", gl_lookup_enum_by_nr(ctx->Texture.Unit[0].EnvMode), gl_lookup_enum_by_nr(ctx->Texture.Unit[1].EnvMode)); if ((ti0->whichTMU==FX_TMU1) || (ti1->whichTMU==FX_TMU0)) { tmu0=1; tmu1=0; } fxMesa->tmuSrc=FX_TMU_BOTH; switch(envmode) { case (FX_UM_E0_MODULATE | FX_UM_E1_MODULATE): { GLboolean isalpha[FX_NUM_TMU]; if(ti0->baseLevelInternalFormat==GL_ALPHA) isalpha[tmu0]=GL_TRUE; else isalpha[tmu0]=GL_FALSE; if(ti1->baseLevelInternalFormat==GL_ALPHA) isalpha[tmu1]=GL_TRUE; else isalpha[tmu1]=GL_FALSE; if(isalpha[FX_TMU1]) FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_ZERO, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXTRUE,FXFALSE); else FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); if(isalpha[FX_TMU0]) FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_ONE, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, FXFALSE,FXFALSE); else FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, FXFALSE,FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; } case (FX_UM_E0_REPLACE | FX_UM_E1_BLEND): /* Only for GLQuake */ if (tmu1==FX_TMU1) { FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXTRUE,FXFALSE); FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, FXFALSE,FXFALSE); } else { FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_ONE_MINUS_LOCAL, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_ONE_MINUS_LOCAL, FXFALSE,FXFALSE); } FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; case (FX_UM_E0_REPLACE | FX_UM_E1_MODULATE): /* Quake 2 and 3 */ if (tmu1==FX_TMU1) { FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_ZERO, GR_COMBINE_FACTOR_NONE, FXFALSE,FXTRUE); FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, FXFALSE,FXFALSE); } else { FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_LOCAL, GR_COMBINE_FUNCTION_BLEND_OTHER, GR_COMBINE_FACTOR_ONE, FXFALSE,FXFALSE); } if(ti0->baseLevelInternalFormat==GL_RGB) FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); else FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; case (FX_UM_E0_MODULATE | FX_UM_E1_ADD): /* Quake 3 Sky */ { GLboolean isalpha[FX_NUM_TMU]; if(ti0->baseLevelInternalFormat==GL_ALPHA) isalpha[tmu0]=GL_TRUE; else isalpha[tmu0]=GL_FALSE; if(ti1->baseLevelInternalFormat==GL_ALPHA) isalpha[tmu1]=GL_TRUE; else isalpha[tmu1]=GL_FALSE; if(isalpha[FX_TMU1]) FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_ZERO, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXTRUE,FXFALSE); else FX_grTexCombine_NoLock(GR_TMU1, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, FXFALSE,FXFALSE); if(isalpha[FX_TMU0]) FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_ONE, GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, GR_COMBINE_FACTOR_ONE, FXFALSE,FXFALSE); else FX_grTexCombine_NoLock(GR_TMU0, GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, GR_COMBINE_FACTOR_ONE, GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, GR_COMBINE_FACTOR_ONE, FXFALSE,FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, localc, GR_COMBINE_OTHER_TEXTURE, FXFALSE); FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_SCALE_OTHER, GR_COMBINE_FACTOR_LOCAL, locala, GR_COMBINE_OTHER_TEXTURE, FXFALSE); break; } default: fprintf(stderr, "Unexpected dual texture mode encountered\n"); break; } if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTextureDoubleTMU(...) End\n"); } } /************************* No Texture ***************************/ static void fxSetupTextureNone_NoLock(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; GrCombineLocal_t localc,locala; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTextureNone(...)\n"); } if((ctx->Light.ShadeModel==GL_SMOOTH) || (ctx->Point.SmoothFlag) || (ctx->Line.SmoothFlag) || (ctx->Polygon.SmoothFlag)) locala=GR_COMBINE_LOCAL_ITERATED; else locala=GR_COMBINE_LOCAL_CONSTANT; if(ctx->Light.ShadeModel==GL_SMOOTH) localc=GR_COMBINE_LOCAL_ITERATED; else localc=GR_COMBINE_LOCAL_CONSTANT; FX_grAlphaCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, locala, GR_COMBINE_OTHER_NONE, FXFALSE); FX_grColorCombine_NoLock(GR_COMBINE_FUNCTION_LOCAL, GR_COMBINE_FACTOR_NONE, localc, GR_COMBINE_OTHER_NONE, FXFALSE); fxMesa->lastUnitsMode=FX_UM_NONE; } /************************************************************************/ /************************** Texture Mode SetUp **************************/ /************************************************************************/ static void fxSetupTexture_NoLock(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; GLuint tex2Denabled; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxSetupTexture(...)\n"); } /* Disable multipass texturing. */ ctx->Driver.MultipassFunc = 0; /* Texture Combine, Color Combine and Alpha Combine. */ tex2Denabled = (ctx->Texture.ReallyEnabled & TEXTURE0_2D); if (fxMesa->emulateTwoTMUs) tex2Denabled |= (ctx->Texture.ReallyEnabled & TEXTURE1_2D); switch(tex2Denabled) { case TEXTURE0_2D: fxSetupTextureSingleTMU_NoLock(ctx,0); break; case TEXTURE1_2D: fxSetupTextureSingleTMU_NoLock(ctx,1); break; case (TEXTURE0_2D|TEXTURE1_2D): if (fxMesa->haveTwoTMUs) fxSetupTextureDoubleTMU_NoLock(ctx); else { if (MESA_VERBOSE&VERBOSE_DRIVER) fprintf(stderr, "fxmesa: enabling fake multitexture\n"); fxSetupTextureSingleTMU_NoLock(ctx,0); ctx->Driver.MultipassFunc = fxMultipassTexture; } break; default: fxSetupTextureNone_NoLock(ctx); break; } } static void fxSetupTexture(GLcontext *ctx) { BEGIN_BOARD_LOCK(); fxSetupTexture_NoLock(ctx); END_BOARD_LOCK(); } /************************************************************************/ /**************************** Blend SetUp *******************************/ /************************************************************************/ /* XXX consider supporting GL_INGR_blend_func_separate */ void fxDDBlendFunc(GLcontext *ctx, GLenum sfactor, GLenum dfactor) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; GrAlphaBlendFnc_t sfact,dfact,asfact,adfact; /* From the Glide documentation: For alpha source and destination blend function factor parameters, Voodoo Graphics supports only GR_BLEND_ZERO and GR_BLEND_ONE. */ switch(sfactor) { case GL_ZERO: asfact=sfact=GR_BLEND_ZERO; break; case GL_ONE: asfact=sfact=GR_BLEND_ONE; break; case GL_DST_COLOR: sfact=GR_BLEND_DST_COLOR; asfact=GR_BLEND_ONE; break; case GL_ONE_MINUS_DST_COLOR: sfact=GR_BLEND_ONE_MINUS_DST_COLOR; asfact=GR_BLEND_ONE; break; case GL_SRC_ALPHA: sfact=GR_BLEND_SRC_ALPHA; asfact=GR_BLEND_ONE; break; case GL_ONE_MINUS_SRC_ALPHA: sfact=GR_BLEND_ONE_MINUS_SRC_ALPHA; asfact=GR_BLEND_ONE; break; case GL_DST_ALPHA: sfact=GR_BLEND_DST_ALPHA; asfact=GR_BLEND_ONE; break; case GL_ONE_MINUS_DST_ALPHA: sfact=GR_BLEND_ONE_MINUS_DST_ALPHA; asfact=GR_BLEND_ONE; break; case GL_SRC_ALPHA_SATURATE: sfact=GR_BLEND_ALPHA_SATURATE; asfact=GR_BLEND_ONE; break; case GL_SRC_COLOR: case GL_ONE_MINUS_SRC_COLOR: /* USELESS */ asfact=sfact=GR_BLEND_ONE; break; default: asfact=sfact=GR_BLEND_ONE; break; } if((sfact!=us->blendSrcFuncRGB) || (asfact!=us->blendSrcFuncAlpha)) { us->blendSrcFuncRGB=sfact; us->blendSrcFuncAlpha=asfact; fxMesa->new_state |= FX_NEW_BLEND; ctx->Driver.RenderStart = fxSetupFXUnits; } switch(dfactor) { case GL_ZERO: adfact=dfact=GR_BLEND_ZERO; break; case GL_ONE: adfact=dfact=GR_BLEND_ONE; break; case GL_SRC_COLOR: dfact=GR_BLEND_SRC_COLOR; adfact=GR_BLEND_ZERO; break; case GL_ONE_MINUS_SRC_COLOR: dfact=GR_BLEND_ONE_MINUS_SRC_COLOR; adfact=GR_BLEND_ZERO; break; case GL_SRC_ALPHA: dfact=GR_BLEND_SRC_ALPHA; adfact=GR_BLEND_ZERO; break; case GL_ONE_MINUS_SRC_ALPHA: dfact=GR_BLEND_ONE_MINUS_SRC_ALPHA; adfact=GR_BLEND_ZERO; break; case GL_DST_ALPHA: /* dfact=GR_BLEND_DST_ALPHA; */ /* We can't do DST_ALPHA */ dfact=GR_BLEND_ONE; adfact=GR_BLEND_ZERO; break; case GL_ONE_MINUS_DST_ALPHA: /* dfact=GR_BLEND_ONE_MINUS_DST_ALPHA; */ /* We can't do DST_ALPHA */ dfact=GR_BLEND_ZERO; adfact=GR_BLEND_ZERO; break; case GL_SRC_ALPHA_SATURATE: case GL_DST_COLOR: case GL_ONE_MINUS_DST_COLOR: /* USELESS */ adfact=dfact=GR_BLEND_ZERO; break; default: adfact=dfact=GR_BLEND_ZERO; break; } if((dfact!=us->blendDstFuncRGB) || (adfact!=us->blendDstFuncAlpha)) { us->blendDstFuncRGB=dfact; us->blendDstFuncAlpha=adfact; fxMesa->new_state |= FX_NEW_BLEND; ctx->Driver.RenderStart = fxSetupFXUnits; } } static void fxSetupBlend(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; if(us->blendEnabled) FX_grAlphaBlendFunction(us->blendSrcFuncRGB,us->blendDstFuncRGB, us->blendSrcFuncAlpha,us->blendDstFuncAlpha); else FX_grAlphaBlendFunction(GR_BLEND_ONE,GR_BLEND_ZERO,GR_BLEND_ONE,GR_BLEND_ZERO); } /************************************************************************/ /************************** Alpha Test SetUp ****************************/ /************************************************************************/ void fxDDAlphaFunc(GLcontext *ctx, GLenum func, GLclampf ref) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; GrCmpFnc_t newfunc; switch(func) { case GL_NEVER: newfunc=GR_CMP_NEVER; break; case GL_LESS: newfunc=GR_CMP_LESS; break; case GL_EQUAL: newfunc=GR_CMP_EQUAL; break; case GL_LEQUAL: newfunc=GR_CMP_LEQUAL; break; case GL_GREATER: newfunc=GR_CMP_GREATER; break; case GL_NOTEQUAL: newfunc=GR_CMP_NOTEQUAL; break; case GL_GEQUAL: newfunc=GR_CMP_GEQUAL; break; case GL_ALWAYS: newfunc=GR_CMP_ALWAYS; break; default: fprintf(stderr,"fx Driver: internal error in fxDDAlphaFunc()\n"); fxCloseHardware(); exit(-1); break; } if(newfunc!=us->alphaTestFunc) { us->alphaTestFunc=newfunc; fxMesa->new_state |= FX_NEW_ALPHA; ctx->Driver.RenderStart = fxSetupFXUnits; } if(ctx->Color.AlphaRef!=us->alphaTestRefValue) { us->alphaTestRefValue=ctx->Color.AlphaRef; fxMesa->new_state |= FX_NEW_ALPHA; ctx->Driver.RenderStart = fxSetupFXUnits; } } static void fxSetupAlphaTest(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; if(us->alphaTestEnabled) { FX_grAlphaTestFunction(us->alphaTestFunc); FX_grAlphaTestReferenceValue(us->alphaTestRefValue); } else FX_grAlphaTestFunction(GR_CMP_ALWAYS); } /************************************************************************/ /************************** Depth Test SetUp ****************************/ /************************************************************************/ void fxDDDepthFunc(GLcontext *ctx, GLenum func) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; GrCmpFnc_t dfunc; switch(func) { case GL_NEVER: dfunc=GR_CMP_NEVER; break; case GL_LESS: dfunc=GR_CMP_LESS; break; case GL_GEQUAL: dfunc=GR_CMP_GEQUAL; break; case GL_LEQUAL: dfunc=GR_CMP_LEQUAL; break; case GL_GREATER: dfunc=GR_CMP_GREATER; break; case GL_NOTEQUAL: dfunc=GR_CMP_NOTEQUAL; break; case GL_EQUAL: dfunc=GR_CMP_EQUAL; break; case GL_ALWAYS: dfunc=GR_CMP_ALWAYS; break; default: fprintf(stderr,"fx Driver: internal error in fxDDDepthFunc()\n"); fxCloseHardware(); exit(-1); break; } if(dfunc!=us->depthTestFunc) { us->depthTestFunc=dfunc; fxMesa->new_state |= FX_NEW_DEPTH; ctx->Driver.RenderStart = fxSetupFXUnits; } } void fxDDDepthMask(GLcontext *ctx, GLboolean flag) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; if(flag!=us->depthMask) { us->depthMask=flag; fxMesa->new_state |= FX_NEW_DEPTH; ctx->Driver.RenderStart = fxSetupFXUnits; } } static void fxSetupDepthTest(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; if(us->depthTestEnabled) FX_grDepthBufferFunction(us->depthTestFunc); else FX_grDepthBufferFunction(GR_CMP_ALWAYS); FX_grDepthMask(us->depthMask); } /************************************************************************/ /**************************** Color Mask SetUp **************************/ /************************************************************************/ GLboolean fxDDColorMask(GLcontext *ctx, GLboolean r, GLboolean g, GLboolean b, GLboolean a ) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; fxMesa->new_state |= FX_NEW_COLOR_MASK; ctx->Driver.RenderStart = fxSetupFXUnits; (void) r; (void) g; (void) b; (void) a; return GL_FALSE; } static void fxSetupColorMask(GLcontext *ctx) { fxMesaContext fxMesa = FX_CONTEXT(ctx); FX_grColorMask(ctx->Color.ColorMask[RCOMP] || ctx->Color.ColorMask[GCOMP] || ctx->Color.ColorMask[BCOMP], ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer); } /************************************************************************/ /**************************** Fog Mode SetUp ****************************/ /************************************************************************/ static void fxFogTableGenerate(GLcontext *ctx) { int i; float f,eyez; fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; for(i=0;iFog.Mode) { case GL_LINEAR: f=(ctx->Fog.End-eyez)/(ctx->Fog.End-ctx->Fog.Start); break; case GL_EXP: f=exp(-ctx->Fog.Density*eyez); break; case GL_EXP2: f=exp(-ctx->Fog.Density*ctx->Fog.Density*eyez*eyez); break; default: /* That should never happen */ f=0.0f; break; } fxMesa->fogTable[i]=(GrFog_t)((1.0f-CLAMP(f,0.0f,1.0f))*255.0f); } } static void fxSetupFog(GLcontext *ctx, GLboolean forceTableRebuild) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; if(ctx->Fog.Enabled && ctx->FogMode==FOG_FRAGMENT) { GLubyte col[4]; FX_grFogMode(GR_FOG_WITH_TABLE); col[0]=(unsigned int)(255*ctx->Fog.Color[0]); col[1]=(unsigned int)(255*ctx->Fog.Color[1]); col[2]=(unsigned int)(255*ctx->Fog.Color[2]); col[3]=(unsigned int)(255*ctx->Fog.Color[3]); FX_grFogColorValue(FXCOLOR4(col)); if(forceTableRebuild || (fxMesa->fogTableMode!=ctx->Fog.Mode) || (fxMesa->fogDensity!=ctx->Fog.Density)) { fxFogTableGenerate(ctx); fxMesa->fogTableMode=ctx->Fog.Mode; fxMesa->fogDensity=ctx->Fog.Density; } FX_grFogTable(fxMesa->fogTable); } else FX_grFogMode(GR_FOG_DISABLE); } void fxDDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *params ) { FX_CONTEXT(ctx)->new_state |= FX_NEW_FOG; ctx->Driver.RenderStart = fxSetupFXUnits; } /************************************************************************/ /************************** Scissor Test SetUp **************************/ /************************************************************************/ /* This routine is used in managing the lock state, and therefore can't lock */ void fxSetScissorValues(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; int xmin, xmax; int ymin, ymax, check; if (ctx->Scissor.Enabled) { xmin=ctx->Scissor.X; xmax=ctx->Scissor.X+ctx->Scissor.Width; ymin=ctx->Scissor.Y; ymax=ctx->Scissor.Y+ctx->Scissor.Height; check=1; } else { xmin=0; ymin=0; xmax=fxMesa->width; ymax=fxMesa->height; check=0; } xmin+=fxMesa->x_offset; xmax+=fxMesa->x_offset; ymin+=fxMesa->y_delta; ymax+=fxMesa->y_delta; if (xminclipMinX) xmin=fxMesa->clipMinX; if (xmax>fxMesa->clipMaxX) xmax=fxMesa->clipMaxX; if (yminscreen_height-fxMesa->clipMaxY) ymin=fxMesa->screen_height-fxMesa->clipMaxY; if (ymax>fxMesa->screen_height-fxMesa->clipMinY) ymax=fxMesa->screen_height-fxMesa->clipMinY; FX_grClipWindow_NoLock(xmin, ymin, xmax, ymax); } static void fxSetupScissor(GLcontext *ctx) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; if (!fxMesa->needClip) { BEGIN_BOARD_LOCK(); fxSetScissorValues(ctx); END_BOARD_LOCK(); } } void fxDDScissor( GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h ) { FX_CONTEXT(ctx)->new_state |= FX_NEW_SCISSOR; ctx->Driver.RenderStart = fxSetupFXUnits; } /************************************************************************/ /*************************** Cull mode setup ****************************/ /************************************************************************/ void fxDDCullFace(GLcontext *ctx, GLenum mode) { (void) mode; FX_CONTEXT(ctx)->new_state |= FX_NEW_CULL; ctx->Driver.RenderStart = fxSetupFXUnits; } void fxDDFrontFace(GLcontext *ctx, GLenum mode) { (void) mode; FX_CONTEXT(ctx)->new_state |= FX_NEW_CULL; ctx->Driver.RenderStart = fxSetupFXUnits; } static void fxSetupCull(GLcontext *ctx) { if(ctx->Polygon.CullFlag) { switch(ctx->Polygon.CullFaceMode) { case GL_BACK: if(ctx->Polygon.FrontFace==GL_CCW) FX_grCullMode(GR_CULL_NEGATIVE); else FX_grCullMode(GR_CULL_POSITIVE); break; case GL_FRONT: if(ctx->Polygon.FrontFace==GL_CCW) FX_grCullMode(GR_CULL_POSITIVE); else FX_grCullMode(GR_CULL_NEGATIVE); break; case GL_FRONT_AND_BACK: FX_grCullMode(GR_CULL_DISABLE); break; default: break; } } else FX_grCullMode(GR_CULL_DISABLE); } /************************************************************************/ /****************************** DD Enable ******************************/ /************************************************************************/ void fxDDEnable(GLcontext *ctx, GLenum cap, GLboolean state) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; tfxUnitsState *us=&fxMesa->unitsState; if (MESA_VERBOSE&VERBOSE_DRIVER) { fprintf(stderr,"fxmesa: fxDDEnable(...)\n"); } switch(cap) { case GL_ALPHA_TEST: if(state!=us->alphaTestEnabled) { us->alphaTestEnabled=state; fxMesa->new_state |= FX_NEW_ALPHA; ctx->Driver.RenderStart = fxSetupFXUnits; } break; case GL_BLEND: if(state!=us->blendEnabled) { us->blendEnabled=state; fxMesa->new_state |= FX_NEW_BLEND; ctx->Driver.RenderStart = fxSetupFXUnits; } break; case GL_DEPTH_TEST: if(state!=us->depthTestEnabled) { us->depthTestEnabled=state; fxMesa->new_state |= FX_NEW_DEPTH; ctx->Driver.RenderStart = fxSetupFXUnits; } break; case GL_SCISSOR_TEST: fxMesa->new_state |= FX_NEW_SCISSOR; ctx->Driver.RenderStart = fxSetupFXUnits; break; case GL_FOG: fxMesa->new_state |= FX_NEW_FOG; ctx->Driver.RenderStart = fxSetupFXUnits; break; case GL_CULL_FACE: fxMesa->new_state |= FX_NEW_CULL; ctx->Driver.RenderStart = fxSetupFXUnits; break; case GL_LINE_SMOOTH: case GL_POINT_SMOOTH: case GL_POLYGON_SMOOTH: case GL_TEXTURE_2D: fxMesa->new_state |= FX_NEW_TEXTURING; ctx->Driver.RenderStart = fxSetupFXUnits; break; default: ; /* XXX no-op??? */ } } #if 0 /* Multipass to do GL_BLEND texture functions Cf*(1-Ct) has already been written to the buffer during the first pass Cc*Ct gets written during the second pass (in this function) Everything gets reset in the third call (in this function) */ static GLboolean fxMultipassBlend(struct vertex_buffer *VB, GLuint pass) { GLcontext *ctx = VB->ctx; fxMesaContext fxMesa = FX_CONTEXT(ctx); switch (pass) { case 1: /* Add Cc*Ct */ fxMesa->restoreUnitsState=fxMesa->unitsState; if (ctx->Depth.Mask) { /* We don't want to check or change the depth buffers */ switch (ctx->Depth.Func) { case GL_NEVER: case GL_ALWAYS: break; default: fxDDDepthFunc(ctx, GL_EQUAL); break; } fxDDDepthMask(ctx, FALSE); } /* Enable Cc*Ct mode */ /* ??? Set the Constant Color ??? */ fxDDEnable(ctx, GL_BLEND, GL_TRUE); fxDDBlendFunc(ctx, ???, ???); fxSetupTextureSingleTMU(ctx, ???); fxSetupBlend(ctx); fxSetupDepthTest(ctx); break; case 2: /* Reset everything back to normal */ fxMesa->unitsState = fxMesa->restoreUnitsState; fxMesa->setupdone &= ???; fxSetupTextureSingleTMU(ctx, ???); fxSetupBlend(ctx); fxSetupDepthTest(ctx); break; } return pass==1; } #endif /************************************************************************/ /******************** Fake Multitexture Support *************************/ /************************************************************************/ /* Its considered cheeky to try to fake ARB multitexture by doing * multipass rendering, because it is not possible to emulate the full * spec in this way. The fact is that the voodoo 2 supports only a * subset of the possible multitexturing modes, and it is possible to * support almost the same subset using multipass blending on the * voodoo 1. In all other cases for both voodoo 1 and 2, we fall back * to software rendering, satisfying the spec if not the user. */ static GLboolean fxMultipassTexture( struct vertex_buffer *VB, GLuint pass ) { GLcontext *ctx = VB->ctx; fxVertex *v = FX_DRIVER_DATA(VB)->verts; fxVertex *last = FX_DRIVER_DATA(VB)->last_vert; fxMesaContext fxMesa = FX_CONTEXT(ctx); switch (pass) { case 1: if (MESA_VERBOSE&(VERBOSE_DRIVER|VERBOSE_PIPELINE|VERBOSE_TEXTURE)) fprintf(stderr, "fxmesa: Second texture pass\n"); for ( ; v != last ; v++) { v->f[S0COORD] = v->f[S1COORD]; v->f[T0COORD] = v->f[T1COORD]; } fxMesa->restoreUnitsState = fxMesa->unitsState; fxMesa->tmu_source[0] = 1; if (ctx->Depth.Mask) { switch (ctx->Depth.Func) { case GL_NEVER: case GL_ALWAYS: break; default: fxDDDepthFunc( ctx, GL_EQUAL ); break; } fxDDDepthMask( ctx, GL_FALSE ); } if (ctx->Texture.Unit[1].EnvMode == GL_MODULATE) { fxDDEnable( ctx, GL_BLEND, GL_TRUE ); fxDDBlendFunc( ctx, GL_DST_COLOR, GL_ZERO ); } fxSetupTextureSingleTMU( ctx, 1 ); fxSetupBlend( ctx ); fxSetupDepthTest( ctx ); break; case 2: /* Restore original state. */ fxMesa->tmu_source[0] = 0; fxMesa->unitsState = fxMesa->restoreUnitsState; fxMesa->setupdone &= ~SETUP_TMU0; fxSetupTextureSingleTMU( ctx, 0 ); fxSetupBlend( ctx ); fxSetupDepthTest( ctx ); break; } return pass == 1; } /************************************************************************/ /************************** Changes to units state **********************/ /************************************************************************/ /* All units setup is handled under texture setup. */ void fxDDShadeModel(GLcontext *ctx, GLenum mode) { FX_CONTEXT(ctx)->new_state |= FX_NEW_TEXTURING; ctx->Driver.RenderStart = fxSetupFXUnits; } /************************************************************************/ /****************************** Units SetUp *****************************/ /************************************************************************/ static void gl_print_fx_state_flags( const char *msg, GLuint flags ) { fprintf(stderr, "%s: (0x%x) %s%s%s%s%s%s%s\n", msg, flags, (flags & FX_NEW_TEXTURING) ? "texture, " : "", (flags & FX_NEW_BLEND) ? "blend, " : "", (flags & FX_NEW_ALPHA) ? "alpha, " : "", (flags & FX_NEW_FOG) ? "fog, " : "", (flags & FX_NEW_SCISSOR) ? "scissor, " : "", (flags & FX_NEW_COLOR_MASK) ? "colormask, " : "", (flags & FX_NEW_CULL) ? "cull, " : ""); } void fxSetupFXUnits( GLcontext *ctx ) { fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; GLuint newstate = fxMesa->new_state; if (MESA_VERBOSE&VERBOSE_DRIVER) gl_print_fx_state_flags("fxmesa: fxSetupFXUnits", newstate); if (newstate) { if (newstate & FX_NEW_TEXTURING) fxSetupTexture(ctx); if (newstate & FX_NEW_BLEND) fxSetupBlend(ctx); if (newstate & FX_NEW_ALPHA) fxSetupAlphaTest(ctx); if (newstate & FX_NEW_DEPTH) fxSetupDepthTest(ctx); if (newstate & FX_NEW_FOG) fxSetupFog(ctx,GL_FALSE); if (newstate & FX_NEW_SCISSOR) fxSetupScissor(ctx); if (newstate & FX_NEW_COLOR_MASK) fxSetupColorMask(ctx); if (newstate & FX_NEW_CULL) fxSetupCull(ctx); fxMesa->new_state = 0; /* ctx->Driver.RenderStart = 0; */ } } #else /* * Need this to provide at least one external definition. */ int gl_fx_dummy_function_setup(void) { return 0; } #endif /* FX */