diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxsetup.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxsetup.c | 380 |
1 files changed, 286 insertions, 94 deletions
diff --git a/src/mesa/drivers/glide/fxsetup.c b/src/mesa/drivers/glide/fxsetup.c index d9c42dd088f..40fd4a5f9cf 100644 --- a/src/mesa/drivers/glide/fxsetup.c +++ b/src/mesa/drivers/glide/fxsetup.c @@ -1,5 +1,3 @@ -/* $Id: fxsetup.c,v 1.42 2003/10/13 11:14:58 dborca Exp $ */ - /* * Mesa 3-D graphics library * Version: 4.0 @@ -315,13 +313,8 @@ fxSetupSingleTMU_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj) if (ti->LODblend) fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU_SPLIT); else { - /* XXX putting textures into the second memory bank when the - * first bank is full is not working at this time. - */ - if (/*[dBorca]: fixme*/0 && fxMesa->haveTwoTMUs) { - if (fxMesa->freeTexMem[FX_TMU0] > - grTexTextureMemRequired(GR_MIPMAPLEVELMASK_BOTH, - &(ti->info))) { + if (fxMesa->haveTwoTMUs) { + if (fxTMCheckStartAddr(fxMesa, FX_TMU0, ti)) { fxTMMoveInTM_NoLock(fxMesa, tObj, FX_TMU0); } else { @@ -431,8 +424,10 @@ fxSelectSingleTMUSrc_NoLock(fxMesaContext fxMesa, GLint tmu, FxBool LODblend) tex1.FunctionAlpha = GR_COMBINE_FUNCTION_LOCAL; tex1.FactorAlpha = GR_COMBINE_FACTOR_NONE; - /* GR_COMBINE_FUNCTION_SCALE_OTHER doesn't work ?!? */ - + /* [dBorca] Hack alert: + * don't use GR_COMBINE_FUNCTION_SCALE_OTHER + * such that Glide recognizes TMU0 in passthrough mode + */ tex0.FunctionRGB = GR_COMBINE_FUNCTION_BLEND; tex0.FactorRGB = GR_COMBINE_FACTOR_ONE; tex0.FunctionAlpha = GR_COMBINE_FUNCTION_BLEND; @@ -549,49 +544,49 @@ fxSetupTextureSingleTMU_NoLock(GLcontext * ctx, GLuint textureset) } break; case GL_BLEND: -#if 1 - if (TDFX_DEBUG & VERBOSE_DRIVER) { - fprintf(stderr, "%s: GL_BLEND not quite supported\n", __FUNCTION__); - } - return; -#else - /* - * XXX we can't do real GL_BLEND mode. These settings assume that - * the TexEnv color is black and incoming fragment color is white. - */ if (ifmt == GL_LUMINANCE || ifmt == GL_RGB) { /* Av = Af */ alphaComb.Function = GR_COMBINE_FUNCTION_LOCAL; - alphaComb.Factor = GR_COMBINE_FACTOR_NONE; - alphaComb.Other = GR_COMBINE_OTHER_NONE; + alphaComb.Factor = GR_COMBINE_FACTOR_NONE; + alphaComb.Other = GR_COMBINE_OTHER_NONE; } else if (ifmt == GL_INTENSITY) { /* Av = Af * (1 - It) + Ac * It */ - /* XXX this is wrong */ - alphaComb.Function = GR_COMBINE_FUNCTION_LOCAL; - alphaComb.Factor = GR_COMBINE_FACTOR_NONE; - alphaComb.Other = GR_COMBINE_OTHER_NONE; + alphaComb.Function = GR_COMBINE_FUNCTION_BLEND; + alphaComb.Factor = GR_COMBINE_FACTOR_TEXTURE_ALPHA; + alphaComb.Other = GR_COMBINE_OTHER_CONSTANT; } else { /* Av = Af * At */ alphaComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER; - alphaComb.Factor = GR_COMBINE_FACTOR_LOCAL; - alphaComb.Other = GR_COMBINE_OTHER_TEXTURE; + alphaComb.Factor = GR_COMBINE_FACTOR_LOCAL; + alphaComb.Other = GR_COMBINE_OTHER_TEXTURE; } + if (ifmt == GL_ALPHA) { colorComb.Function = GR_COMBINE_FUNCTION_LOCAL; - colorComb.Factor = GR_COMBINE_FACTOR_NONE; - colorComb.Other = GR_COMBINE_OTHER_NONE; - } - else { - colorComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER; - colorComb.Factor = GR_COMBINE_FACTOR_ONE; - colorComb.Other = GR_COMBINE_OTHER_TEXTURE; - colorComb.Invert = FXTRUE; + colorComb.Factor = GR_COMBINE_FACTOR_NONE; + colorComb.Other = GR_COMBINE_OTHER_NONE; + } else { + /* [dBorca] Hack alert: + * only Voodoo^2 can GL_BLEND (GR_COMBINE_FACTOR_TEXTURE_RGB) + */ + if (fxMesa->type >= GR_SSTTYPE_Voodoo2) { + colorComb.Function = GR_COMBINE_FUNCTION_BLEND; + colorComb.Factor = GR_COMBINE_FACTOR_TEXTURE_RGB; + colorComb.Other = GR_COMBINE_OTHER_CONSTANT; + } else { + _mesa_problem(NULL, "can't GL_BLEND with SST1"); + return; + } } - /* XXX return GL_FALSE for modes we don't support */ + + grConstantColorValue( + ((GLuint)((ctx->Texture.Unit[textureset].EnvColor[0] * 255.0f)) ) | + ((GLuint)((ctx->Texture.Unit[textureset].EnvColor[1] * 255.0f)) << 8) | + ((GLuint)((ctx->Texture.Unit[textureset].EnvColor[2] * 255.0f)) << 16) | + ((GLuint)((ctx->Texture.Unit[textureset].EnvColor[3] * 255.0f)) << 24)); break; -#endif case GL_REPLACE: if ((ifmt == GL_RGB) || (ifmt == GL_LUMINANCE)) { alphaComb.Function = GR_COMBINE_FUNCTION_LOCAL; @@ -613,6 +608,41 @@ fxSetupTextureSingleTMU_NoLock(GLcontext * ctx, GLuint textureset) colorComb.Other = GR_COMBINE_OTHER_TEXTURE; } break; + case GL_ADD: + if (ifmt == GL_ALPHA || + ifmt == GL_LUMINANCE_ALPHA || + ifmt == GL_RGBA) { + /* product of texel and fragment alpha */ + alphaComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER; + alphaComb.Factor = GR_COMBINE_FACTOR_LOCAL; + alphaComb.Other = GR_COMBINE_OTHER_TEXTURE; + } + else if (ifmt == GL_LUMINANCE || ifmt == GL_RGB) { + /* fragment alpha is unchanged */ + alphaComb.Function = GR_COMBINE_FUNCTION_LOCAL; + alphaComb.Factor = GR_COMBINE_FACTOR_NONE; + alphaComb.Other = GR_COMBINE_OTHER_NONE; + } + else { + /* sum of texel and fragment alpha */ + alphaComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, + alphaComb.Factor = GR_COMBINE_FACTOR_ONE; + alphaComb.Other = GR_COMBINE_OTHER_TEXTURE; + } + + if (ifmt == GL_ALPHA) { + /* rgb unchanged */ + colorComb.Function = GR_COMBINE_FUNCTION_LOCAL; + colorComb.Factor = GR_COMBINE_FACTOR_NONE; + colorComb.Other = GR_COMBINE_OTHER_NONE; + } + else { + /* sum of texel and fragment rgb */ + colorComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER_ADD_LOCAL, + colorComb.Factor = GR_COMBINE_FACTOR_ONE; + colorComb.Other = GR_COMBINE_OTHER_TEXTURE; + } + break; default: if (TDFX_DEBUG & VERBOSE_DRIVER) { fprintf(stderr, "%s: %x Texture.EnvMode not yet supported\n", __FUNCTION__, @@ -1083,6 +1113,8 @@ fxSetupTextureNone_NoLock(GLcontext * ctx) fxMesa->lastUnitsMode = FX_UM_NONE; } +#include "fxsetup.h" + /************************************************************************/ /************************** Texture Mode SetUp **************************/ /************************************************************************/ @@ -1096,20 +1128,38 @@ fxSetupTexture_NoLock(GLcontext * ctx) fprintf(stderr, "%s(...)\n", __FUNCTION__); } - /* Texture Combine, Color Combine and Alpha Combine. */ - if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT && - ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT && - fxMesa->haveTwoTMUs) { - fxSetupTextureDoubleTMU_NoLock(ctx); - } - else if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT) { - fxSetupTextureSingleTMU_NoLock(ctx, 0); - } - else if (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT) { - fxSetupTextureSingleTMU_NoLock(ctx, 1); - } - else { - fxSetupTextureNone_NoLock(ctx); + if (fxMesa->HaveCmbExt) { + /* Texture Combine, Color Combine and Alpha Combine. */ + if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT && + ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT && + fxMesa->haveTwoTMUs) { + fxSetupTextureDoubleTMUNapalm_NoLock(ctx); + } + else if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT) { + fxSetupTextureSingleTMUNapalm_NoLock(ctx, 0); + } + else if (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT) { + fxSetupTextureSingleTMUNapalm_NoLock(ctx, 1); + } + else { + fxSetupTextureNoneNapalm_NoLock(ctx); + } + } else { + /* Texture Combine, Color Combine and Alpha Combine. */ + if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT && + ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT && + fxMesa->haveTwoTMUs) { + fxSetupTextureDoubleTMU_NoLock(ctx); + } + else if (ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT) { + fxSetupTextureSingleTMU_NoLock(ctx, 0); + } + else if (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT) { + fxSetupTextureSingleTMU_NoLock(ctx, 1); + } + else { + fxSetupTextureNone_NoLock(ctx); + } } } @@ -1125,117 +1175,211 @@ fxSetupTexture(GLcontext * ctx) /**************************** Blend SetUp *******************************/ /************************************************************************/ -/* XXX consider supporting GL_INGR_blend_func_separate */ void -fxDDBlendFunc(GLcontext * ctx, GLenum sfactor, GLenum dfactor) +fxDDBlendFuncSeparate(GLcontext * ctx, GLenum sfactor, GLenum dfactor, GLenum asfactor, GLenum adfactor) { fxMesaContext fxMesa = FX_CONTEXT(ctx); tfxUnitsState *us = &fxMesa->unitsState; + GLboolean have32bpp = (fxMesa->colDepth == 32); + GLboolean haveAlpha = fxMesa->haveHwAlpha; 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. + /* [dBorca] Hack alert: + * We should condition *DST_ALPHA* modes + * by the boolean `haveAlpha' above! + * It indicates whether we really have HW alpha buffer... */ +/* +When the value A_COLOR is selected as the destination alpha blending factor, +the source pixel color is used as the destination blending factor. When the +value A_COLOR is selected as the source alpha blending factor, the destination +pixel color is used as the source blending factor. When the value A_SAMECOLOR +is selected as the destination alpha blending factor, the destination pixel +color is used as the destination blending factor. When the value A_SAMECOLOR +is selected as the source alpha blending factor, the source pixel color is +used as the source blending factor. Note also that the alpha blending +function 0xf (A_COLORBEFOREFOG/ASATURATE) is different depending upon whether +it is being used as a source or destination alpha blending function. When the +value 0xf is selected as the destination alpha blending factor, the source +color before the fog unit ("unfogged" color) is used as the destination +blending factor -- this alpha blending function is useful for multi-pass +rendering with atmospheric effects. When the value 0xf is selected as the +source alpha blending factor, the alpha-saturate anti-aliasing algorithm is +selected -- this MIN function performs polygonal anti-aliasing for polygons +which are drawn front-to-back. + +15/16 BPP alpha channel alpha blending modes + 0x0 AZERO Zero + 0x4 AONE One + +32 BPP alpha channel alpha blending modes + 0x0 AZERO Zero + 0x1 ASRC_ALPHA Source alpha + 0x3 ADST_ALPHA Destination alpha + 0x4 AONE One + 0x5 AOMSRC_ALPHA 1 - Source alpha + 0x7 AOMDST_ALPHA 1 - Destination alpha +*/ + switch (sfactor) { case GL_ZERO: - asfact = sfact = GR_BLEND_ZERO; + sfact = GR_BLEND_ZERO; break; case GL_ONE: - asfact = sfact = GR_BLEND_ONE; + 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; + sfact = GR_BLEND_ONE; break; default: - asfact = sfact = GR_BLEND_ONE; + sfact = GR_BLEND_ONE; break; } - if ((sfact != us->blendSrcFuncRGB) || (asfact != us->blendSrcFuncAlpha)) { - us->blendSrcFuncRGB = sfact; - us->blendSrcFuncAlpha = asfact; - fxMesa->new_state |= FX_NEW_BLEND; + switch (asfactor) { + case GL_ZERO: + asfact = GR_BLEND_ZERO; + break; + case GL_ONE: + asfact = GR_BLEND_ONE; + break; + case GL_DST_COLOR: + asfact = GR_BLEND_ONE/*bad*/; + break; + case GL_ONE_MINUS_DST_COLOR: + asfact = GR_BLEND_ONE/*bad*/; + break; + case GL_SRC_ALPHA: + asfact = have32bpp ? GR_BLEND_SRC_ALPHA : GR_BLEND_ONE/*bad*/; + break; + case GL_ONE_MINUS_SRC_ALPHA: + asfact = have32bpp ? GR_BLEND_ONE_MINUS_SRC_ALPHA : GR_BLEND_ONE/*bad*/; + break; + case GL_DST_ALPHA: + asfact = have32bpp ? GR_BLEND_DST_ALPHA : GR_BLEND_ONE/*bad*/; + break; + case GL_ONE_MINUS_DST_ALPHA: + asfact = have32bpp ? GR_BLEND_ONE_MINUS_DST_ALPHA : GR_BLEND_ONE/*bad*/; + break; + case GL_SRC_ALPHA_SATURATE: + asfact = GR_BLEND_ONE/*bad*/; + break; + case GL_SRC_COLOR: + case GL_ONE_MINUS_SRC_COLOR: + /* USELESS */ + asfact = GR_BLEND_ONE/*bad*/; + break; + default: + asfact = GR_BLEND_ONE/*bad*/; + break; } switch (dfactor) { case GL_ZERO: - adfact = dfact = GR_BLEND_ZERO; + dfact = GR_BLEND_ZERO; break; case GL_ONE: - adfact = dfact = GR_BLEND_ONE; + 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; + break; + case GL_SRC_ALPHA_SATURATE: + case GL_DST_COLOR: + case GL_ONE_MINUS_DST_COLOR: + /* USELESS */ + dfact = GR_BLEND_ZERO; + break; + default: + dfact = GR_BLEND_ZERO; + break; + } + + switch (adfactor) { + case GL_ZERO: adfact = GR_BLEND_ZERO; break; + case GL_ONE: + adfact = GR_BLEND_ONE; + break; + case GL_SRC_COLOR: + adfact = GR_BLEND_ZERO/*bad*/; + break; + case GL_ONE_MINUS_SRC_COLOR: + adfact = GR_BLEND_ZERO/*bad*/; + break; + case GL_SRC_ALPHA: + adfact = have32bpp ? GR_BLEND_SRC_ALPHA : GR_BLEND_ZERO/*bad*/; + break; + case GL_ONE_MINUS_SRC_ALPHA: + adfact = have32bpp ? GR_BLEND_ONE_MINUS_SRC_ALPHA : GR_BLEND_ZERO/*bad*/; + break; + case GL_DST_ALPHA: + adfact = have32bpp ? GR_BLEND_DST_ALPHA : GR_BLEND_ZERO/*bad*/; + break; + case GL_ONE_MINUS_DST_ALPHA: + adfact = have32bpp ? GR_BLEND_ONE_MINUS_DST_ALPHA : GR_BLEND_ZERO/*bad*/; + break; case GL_SRC_ALPHA_SATURATE: case GL_DST_COLOR: case GL_ONE_MINUS_DST_COLOR: /* USELESS */ - adfact = dfact = GR_BLEND_ZERO; + adfact = GR_BLEND_ZERO/*bad*/; break; default: - adfact = dfact = GR_BLEND_ZERO; + adfact = GR_BLEND_ZERO/*bad*/; break; } + if ((sfact != us->blendSrcFuncRGB) || (asfact != us->blendSrcFuncAlpha)) { + us->blendSrcFuncRGB = sfact; + us->blendSrcFuncAlpha = asfact; + fxMesa->new_state |= FX_NEW_BLEND; + } + if ((dfact != us->blendDstFuncRGB) || (adfact != us->blendDstFuncAlpha)) { us->blendDstFuncRGB = dfact; us->blendDstFuncAlpha = adfact; @@ -1243,18 +1387,66 @@ fxDDBlendFunc(GLcontext * ctx, GLenum sfactor, GLenum dfactor) } } +void +fxDDBlendFunc(GLcontext * ctx, GLenum sfactor, GLenum dfactor) +{ + fxDDBlendFuncSeparate(ctx, sfactor, dfactor, sfactor, dfactor); +} + +void +fxDDBlendEquation(GLcontext * ctx, GLenum mode) +{ + fxMesaContext fxMesa = FX_CONTEXT(ctx); + tfxUnitsState *us = &fxMesa->unitsState; + GrAlphaBlendOp_t q; + + switch (mode) { + case GL_FUNC_ADD_EXT: + q = GR_BLEND_OP_ADD; + break; + case GL_FUNC_SUBTRACT_EXT: + q = GR_BLEND_OP_SUB; + break; + case GL_FUNC_REVERSE_SUBTRACT_EXT: + q = GR_BLEND_OP_REVSUB; + break; + default: + return; + } + + if ((q != us->blendEq) && fxMesa->HavePixExt) { + us->blendEq = q; + fxMesa->new_state |= FX_NEW_BLEND; + } +} + static void fxSetupBlend(GLcontext * ctx) { - fxMesaContext fxMesa = FX_CONTEXT(ctx); - 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); + fxMesaContext fxMesa = FX_CONTEXT(ctx); + tfxUnitsState *us = &fxMesa->unitsState; + + if (fxMesa->HavePixExt) { + if (us->blendEnabled) { + fxMesa->Glide.grAlphaBlendFunctionExt(us->blendSrcFuncRGB, us->blendDstFuncRGB, + us->blendEq, + us->blendSrcFuncAlpha, us->blendDstFuncAlpha, + us->blendEq); + } else { + fxMesa->Glide.grAlphaBlendFunctionExt(GR_BLEND_ONE, GR_BLEND_ZERO, + GR_BLEND_OP_ADD, + GR_BLEND_ONE, GR_BLEND_ZERO, + GR_BLEND_OP_ADD); + } + } else { + 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); + } + } } /************************************************************************/ @@ -1468,8 +1660,8 @@ fxSetupColorMask(GLcontext * ctx) } else { /* 16 bpp mode */ - grColorMask(ctx->Color.ColorMask[RCOMP] || - ctx->Color.ColorMask[GCOMP] || + grColorMask(ctx->Color.ColorMask[RCOMP] | + ctx->Color.ColorMask[GCOMP] | ctx->Color.ColorMask[BCOMP], ctx->Color.ColorMask[ACOMP] && fxMesa->haveHwAlpha); } |