diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxsetup.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxsetup.c | 1552 |
1 files changed, 1552 insertions, 0 deletions
diff --git a/src/mesa/drivers/glide/fxsetup.c b/src/mesa/drivers/glide/fxsetup.c new file mode 100644 index 00000000000..9996499316e --- /dev/null +++ b/src/mesa/drivers/glide/fxsetup.c @@ -0,0 +1,1552 @@ +/* -*- mode: C; tab-width:8; -*- + + fxsetup.c - 3Dfx VooDoo rendering mode setup functions +*/ + +/* + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * See the file fxapi.c for more informations about authors + * + */ + +#ifdef HAVE_CONFIG_H +#include "conf.h" +#endif + +#if defined(FX) + +#include "fxdrv.h" +#include "enums.h" + +static void fxTexValidate(GLcontext *ctx, struct gl_texture_object *tObj) +{ + tfxTexInfo *ti=(tfxTexInfo *)tObj->DriverData; + 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; + } + + 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)); + + 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, " : ""); +} + +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; + + if(tObj0) { + tfxTexInfo *ti0=(tfxTexInfo *)tObj0->DriverData; + + 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; + default: + /* do nothing */ + break; + } + } + + if(tObj1) { + tfxTexInfo *ti1=(tfxTexInfo *)tObj1->DriverData; + + 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; + 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(fxMesaContext fxMesa, struct gl_texture_object *tObj) +{ + tfxTexInfo *ti=(tfxTexInfo *)tObj->DriverData; + + if(!ti->tmi.isInTM) { + if(ti->LODblend) + fxTMMoveInTM(fxMesa,tObj,FX_TMU_SPLIT); + else { + if(fxMesa->haveTwoTMUs) { + if(fxMesa->freeTexMem[FX_TMU0]>grTexTextureMemRequired(GR_MIPMAPLEVELMASK_BOTH,&(ti->info))) + fxTMMoveInTM(fxMesa,tObj,FX_TMU0); + else + fxTMMoveInTM(fxMesa,tObj,FX_TMU1); + } else + fxTMMoveInTM(fxMesa,tObj,FX_TMU0); + } + } + + if(ti->LODblend && ti->tmi.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(GR_TMU0,GR_TEXTABLE_PALETTE,&(ti->palette)); + FX_grTexDownloadTable(GR_TMU1,GR_TEXTABLE_PALETTE,&(ti->palette)); + } + + grTexClampMode(GR_TMU0,ti->sClamp,ti->tClamp); + grTexClampMode(GR_TMU1,ti->sClamp,ti->tClamp); + grTexFilterMode(GR_TMU0,ti->minFilt,ti->maxFilt); + grTexFilterMode(GR_TMU1,ti->minFilt,ti->maxFilt); + grTexMipMapMode(GR_TMU0,ti->mmMode,ti->LODblend); + grTexMipMapMode(GR_TMU1,ti->mmMode,ti->LODblend); + + grTexSource(GR_TMU0,ti->tmi.tm[FX_TMU0]->startAddress, + GR_MIPMAPLEVELMASK_ODD,&(ti->info)); + grTexSource(GR_TMU1,ti->tmi.tm[FX_TMU1]->startAddress, + GR_MIPMAPLEVELMASK_EVEN,&(ti->info)); + } else { + if((ti->info.format==GR_TEXFMT_P_8) && (!fxMesa->haveGlobalPaletteTexture)) { + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: uploading texture palette\n"); + } + FX_grTexDownloadTable(ti->tmi.whichTMU,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"); + + grTexClampMode(ti->tmi.whichTMU,ti->sClamp,ti->tClamp); + grTexFilterMode(ti->tmi.whichTMU,ti->minFilt,ti->maxFilt); + grTexMipMapMode(ti->tmi.whichTMU,ti->mmMode,FXFALSE); + + grTexSource(ti->tmi.whichTMU,ti->tmi.tm[ti->tmi.whichTMU]->startAddress, + GR_MIPMAPLEVELMASK_BOTH,&(ti->info)); + } +} + +static void fxSelectSingleTMUSrc(fxMesaContext fxMesa, GLint tmu, FxBool LODblend) +{ + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: fxSelectSingleTMUSrc(%d,%d)\n",tmu,LODblend); + } + + if(LODblend) { + grTexCombine(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); + + grTexCombine(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_TMU0) { + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXFALSE,FXFALSE); + + fxMesa->tmuSrc=FX_TMU0; + } else { + grTexCombine(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 ?!? */ + + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_BLEND,GR_COMBINE_FACTOR_ONE, + GR_COMBINE_FUNCTION_BLEND,GR_COMBINE_FACTOR_ONE, + FXFALSE,FXFALSE); + + fxMesa->tmuSrc=FX_TMU1; + } + } +} + +void fxSetupTextureSingleTMU(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]; + + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: fxSetupTextureSingleTMU(...) Start\n"); + } + + ti=(tfxTexInfo *)tObj->DriverData; + + fxTexValidate(ctx,tObj); + + fxSetupSingleTMU(fxMesa,tObj); + + if(fxMesa->tmuSrc!=ti->tmi.whichTMU) + fxSelectSingleTMUSrc(fxMesa,ti->tmi.whichTMU,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(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: + grAlphaCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + + grColorCombine(GR_COMBINE_FUNCTION_BLEND, + GR_COMBINE_FACTOR_TEXTURE_ALPHA, + localc, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + break; + case GL_MODULATE: + grAlphaCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_LOCAL, + locala, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + + if(ifmt==GL_ALPHA) + grColorCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + localc, + GR_COMBINE_OTHER_NONE, + FXFALSE); + else + grColorCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_LOCAL, + localc, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + break; + case GL_BLEND: +#ifndef FX_SILENT + fprintf(stderr,"fx Driver: GL_BLEND not yet supported\n"); +#endif + /* TO DO (I think that the Voodoo Graphics isn't able to support GL_BLEND) */ + break; + case GL_REPLACE: + if((ifmt==GL_RGB) || (ifmt==GL_LUMINANCE)) + grAlphaCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + else + grAlphaCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_ONE, + locala, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + + if(ifmt==GL_ALPHA) + grColorCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + localc, + GR_COMBINE_OTHER_NONE, + FXFALSE); + else + grColorCombine(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"); + } +} + +/************************* Double Texture Set ***************************/ + +void fxSetupDoubleTMU(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=(tfxTexInfo *)tObj0->DriverData; + tfxTexInfo *ti1=(tfxTexInfo *)tObj1->DriverData; + GLuint tstate=0; + + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: fxSetupDoubleTMU(...)\n"); + } + + if(ti0->tmi.isInTM) { + if(ti0->tmi.whichTMU==FX_TMU0) + tstate|=T0_IN_TMU0; + else if(ti0->tmi.whichTMU==FX_TMU1) + tstate|=T0_IN_TMU1; + else { + fxTMMoveOutTM(fxMesa,tObj0); + tstate|=T0_NOT_IN_TMU; + } + } else + tstate|=T0_NOT_IN_TMU; + + if(ti1->tmi.isInTM) { + if(ti1->tmi.whichTMU==FX_TMU0) + tstate|=T1_IN_TMU0; + else if(ti1->tmi.whichTMU==FX_TMU1) + tstate|=T1_IN_TMU1; + else { + fxTMMoveOutTM(fxMesa,tObj1); + tstate|=T1_NOT_IN_TMU; + } + } else + tstate|=T1_NOT_IN_TMU; + + ti0->tmi.lastTimeUsed=fxMesa->texBindNumber; + ti1->tmi.lastTimeUsed=fxMesa->texBindNumber; + + /* Move texture maps in TMUs */ + + switch(tstate) { + case (T0_IN_TMU0 | T1_IN_TMU0): + fxTMMoveOutTM(fxMesa,tObj1); + + fxTMMoveInTM(fxMesa,tObj1,FX_TMU1); + break; + + case (T0_IN_TMU1 | T1_IN_TMU1): + fxTMMoveOutTM(fxMesa,tObj0); + + fxTMMoveInTM(fxMesa,tObj0,FX_TMU0); + break; + + case (T0_NOT_IN_TMU | T1_NOT_IN_TMU): + fxTMMoveInTM(fxMesa,tObj0,FX_TMU0); + fxTMMoveInTM(fxMesa,tObj1,FX_TMU1); + break; + + /*** T0/T1 ***/ + + case (T0_NOT_IN_TMU | T1_IN_TMU0): + fxTMMoveInTM(fxMesa,tObj0,FX_TMU1); + break; + + case (T0_NOT_IN_TMU | T1_IN_TMU1): + fxTMMoveInTM(fxMesa,tObj0,FX_TMU0); + break; + + case (T0_IN_TMU0 | T1_NOT_IN_TMU): + fxTMMoveInTM(fxMesa,tObj1,FX_TMU1); + break; + + case (T0_IN_TMU1 | T1_NOT_IN_TMU): + fxTMMoveInTM(fxMesa,tObj1,FX_TMU0); + break; + + /*** Best Case ***/ + + case (T0_IN_TMU1 | T1_IN_TMU0): + case (T0_IN_TMU0 | T1_IN_TMU1): + break; + + default: + fprintf(stderr,"fx Driver: internal error in fxSetupDoubleTMU()\n"); + fxCloseHardware(); + exit(-1); + break; + } + + 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(ti0->tmi.whichTMU,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(ti1->tmi.whichTMU,GR_TEXTABLE_PALETTE,&(ti1->palette)); + } + } + + grTexClampMode(ti0->tmi.whichTMU,ti0->sClamp,ti0->tClamp); + grTexFilterMode(ti0->tmi.whichTMU,ti0->minFilt,ti0->maxFilt); + grTexMipMapMode(ti0->tmi.whichTMU,ti0->mmMode,FXFALSE); + grTexSource(ti0->tmi.whichTMU,ti0->tmi.tm[ti0->tmi.whichTMU]->startAddress, + GR_MIPMAPLEVELMASK_BOTH,&(ti0->info)); + + grTexClampMode(ti1->tmi.whichTMU,ti1->sClamp,ti1->tClamp); + grTexFilterMode(ti1->tmi.whichTMU,ti1->minFilt,ti1->maxFilt); + grTexMipMapMode(ti1->tmi.whichTMU,ti1->mmMode,FXFALSE); + grTexSource(ti1->tmi.whichTMU,ti1->tmi.tm[ti1->tmi.whichTMU]->startAddress, + GR_MIPMAPLEVELMASK_BOTH,&(ti1->info)); + +#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(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; + + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: fxSetupTextureDoubleTMU(...) Start\n"); + } + + ti0=(tfxTexInfo *)tObj0->DriverData; + fxTexValidate(ctx,tObj0); + + ti1=(tfxTexInfo *)tObj1->DriverData; + fxTexValidate(ctx,tObj1); + + fxSetupDoubleTMU(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(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)); + + + 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[ti0->tmi.whichTMU]=GL_TRUE; + else + isalpha[ti0->tmi.whichTMU]=GL_FALSE; + + if(ti1->baseLevelInternalFormat==GL_ALPHA) + isalpha[ti1->tmi.whichTMU]=GL_TRUE; + else + isalpha[ti1->tmi.whichTMU]=GL_FALSE; + + if(isalpha[FX_TMU1]) + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_ZERO,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXTRUE,FXFALSE); + else + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXFALSE,FXFALSE); + + if(isalpha[FX_TMU0]) + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_ONE, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + FXFALSE,FXFALSE); + else + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + FXFALSE,FXFALSE); + + grColorCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_LOCAL, + localc, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + + grAlphaCombine(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(ti1->tmi.whichTMU==FX_TMU1) { + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXTRUE,FXFALSE); + + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + FXFALSE,FXFALSE); + } else { + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXFALSE,FXFALSE); + + grTexCombine(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); + } + + grAlphaCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + + grColorCombine(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(ti1->tmi.whichTMU==FX_TMU1) { + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_ZERO,GR_COMBINE_FACTOR_NONE, + FXFALSE,FXTRUE); + + grTexCombine(GR_TMU0, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + GR_COMBINE_FUNCTION_BLEND_OTHER,GR_COMBINE_FACTOR_LOCAL, + FXFALSE,FXFALSE); + + } else { + grTexCombine(GR_TMU1, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + GR_COMBINE_FUNCTION_LOCAL,GR_COMBINE_FACTOR_NONE, + FXFALSE,FXFALSE); + + grTexCombine(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) + grAlphaCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + else + grAlphaCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_ONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + + + grColorCombine(GR_COMBINE_FUNCTION_SCALE_OTHER, + GR_COMBINE_FACTOR_ONE, + localc, + GR_COMBINE_OTHER_TEXTURE, + FXFALSE); + break; + } + + if (MESA_VERBOSE&VERBOSE_DRIVER) { + fprintf(stderr,"fxmesa: fxSetupTextureDoubleTMU(...) End\n"); + } +} + +/************************* No Texture ***************************/ + +static void fxSetupTextureNone(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; + + grAlphaCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + locala, + GR_COMBINE_OTHER_NONE, + FXFALSE); + + grColorCombine(GR_COMBINE_FUNCTION_LOCAL, + GR_COMBINE_FACTOR_NONE, + localc, + GR_COMBINE_OTHER_NONE, + FXFALSE); + + fxMesa->lastUnitsMode=FX_UM_NONE; +} + +/* See below. + */ +static GLboolean fxMultipassTexture( struct vertex_buffer *, GLuint ); + + + +/************************************************************************/ +/************************** Texture Mode SetUp **************************/ +/************************************************************************/ + +void fxSetupTexture(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(ctx,0); + break; + case TEXTURE1_2D: + fxSetupTextureSingleTMU(ctx,1); + break; + case (TEXTURE0_2D|TEXTURE1_2D): + if (fxMesa->haveTwoTMUs) + fxSetupTextureDoubleTMU(ctx); + else { + if (MESA_VERBOSE&VERBOSE_DRIVER) + fprintf(stderr, "fxmesa: enabling fake multitexture\n"); + + fxSetupTextureSingleTMU(ctx,0); + ctx->Driver.MultipassFunc = fxMultipassTexture; + } + break; + default: + fxSetupTextureNone(ctx); + break; + } +} + +/************************************************************************/ +/**************************** 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; + adfact=GR_BLEND_ZERO; + break; + case GL_ONE_MINUS_DST_ALPHA: + dfact=GR_BLEND_ONE_MINUS_DST_ALPHA; + 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; + } +} + +void fxSetupBlend(GLcontext *ctx) +{ + fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; + tfxUnitsState *us=&fxMesa->unitsState; + + if(us->blendEnabled) + grAlphaBlendFunction(us->blendSrcFuncRGB,us->blendDstFuncRGB, + us->blendSrcFuncAlpha,us->blendDstFuncAlpha); + else + 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) { + grAlphaTestFunction(us->alphaTestFunc); + grAlphaTestReferenceValue(us->alphaTestRefValue); + } else + 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; + } +} + +void fxSetupDepthTest(GLcontext *ctx) +{ + fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; + tfxUnitsState *us=&fxMesa->unitsState; + + if(us->depthTestEnabled) + grDepthBufferFunction(us->depthTestFunc); + else + grDepthBufferFunction(GR_CMP_ALWAYS); + + 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 1; +} + +static void fxSetupColorMask(GLcontext *ctx) +{ + fxMesaContext fxMesa = FX_CONTEXT(ctx); + + grColorMask(ctx->Color.ColorMask[RCOMP] || + ctx->Color.ColorMask[GCOMP] || + ctx->Color.ColorMask[BCOMP], + ctx->Color.ColorMask[ACOMP] && fxMesa->haveAlphaBuffer); +} + + + +/************************************************************************/ +/**************************** Fog Mode SetUp ****************************/ +/************************************************************************/ + +void fxFogTableGenerate(GLcontext *ctx) +{ + int i; + float f,eyez; + fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; + + for(i=0;i<FX_grGetInteger(FX_FOG_TABLE_ENTRIES);i++) { + eyez=guFogTableIndexToW(i); + + switch(ctx->Fog.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); + } +} + +void fxSetupFog(GLcontext *ctx, GLboolean forceTableRebuild) +{ + fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; + + if(ctx->Fog.Enabled && ctx->FogMode==FOG_FRAGMENT) { + GLubyte col[4]; + 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]); + + 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; + } + + grFogTable(fxMesa->fogTable); + } else + 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 **************************/ +/************************************************************************/ + +static void fxSetupScissor(GLcontext *ctx) +{ + fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx; + + if (ctx->Scissor.Enabled) { + int ymin, ymax; + + ymin=ctx->Scissor.Y; + ymax=ctx->Scissor.Y+ctx->Scissor.Height; + + if (ymin<0) ymin=0; + + if (ymax>fxMesa->height) ymax=fxMesa->height; + + grClipWindow(ctx->Scissor.X, + ymin, + ctx->Scissor.X+ctx->Scissor.Width, + ymax); + } else + grClipWindow(0,0,fxMesa->width,fxMesa->height); +} + +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; +} + + +void fxSetupCull(GLcontext *ctx) +{ + if(ctx->Polygon.CullFlag) { + switch(ctx->Polygon.CullFaceMode) { + case GL_BACK: + if(ctx->Polygon.FrontFace==GL_CCW) + grCullMode(GR_CULL_NEGATIVE); + else + grCullMode(GR_CULL_POSITIVE); + break; + case GL_FRONT: + if(ctx->Polygon.FrontFace==GL_CCW) + grCullMode(GR_CULL_POSITIVE); + else + grCullMode(GR_CULL_NEGATIVE); + break; + case GL_FRONT_AND_BACK: + grCullMode(GR_CULL_DISABLE); + break; + default: + break; + } + } else + 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??? */ + } +} + +/************************************************************************/ +/******************** 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 *****************************/ +/************************************************************************/ +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 */ |