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GL_MODULATE/GL_REPLACE multitex (wasteful, but apparently needed by some apps)

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This commit is contained in:
Daniel Borca 2004-07-16 07:53:53 +00:00
parent 0f7eb92249
commit 1ff6188c09
1 changed files with 34 additions and 0 deletions
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34
src/mesa/drivers/glide/fxsetup.c
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@ -1188,6 +1188,40 @@ fxSetupTextureDoubleTMU_NoLock(GLcontext * ctx)
alphaComb.Other = GR_COMBINE_OTHER_TEXTURE;
break;
}
case (FX_UM_E0_MODULATE | FX_UM_E1_REPLACE): /* Homeworld2 */
{
tex1.FunctionRGB = GR_COMBINE_FUNCTION_ZERO;
tex1.FactorRGB = GR_COMBINE_FACTOR_NONE;
tex1.FunctionAlpha = GR_COMBINE_FUNCTION_ZERO;
tex1.FactorAlpha = GR_COMBINE_FACTOR_NONE;
tex0.FunctionRGB = GR_COMBINE_FUNCTION_LOCAL;
tex0.FactorRGB = GR_COMBINE_FACTOR_NONE;
tex0.FunctionAlpha = GR_COMBINE_FUNCTION_LOCAL;
tex0.FactorAlpha = GR_COMBINE_FACTOR_NONE;
if (ifmt & (FX_UM_E0_RGB | FX_UM_E0_LUMINANCE)) {
alphaComb.Function = GR_COMBINE_FUNCTION_LOCAL;
alphaComb.Factor = GR_COMBINE_FACTOR_NONE;
alphaComb.Other = GR_COMBINE_OTHER_NONE;
} else {
alphaComb.Function = GR_COMBINE_FUNCTION_SCALE_OTHER;
alphaComb.Factor = GR_COMBINE_FACTOR_ONE;
alphaComb.Other = GR_COMBINE_OTHER_TEXTURE;
}
if (ifmt & FX_UM_E0_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;
}
break;
}
default:
fprintf(stderr, "fxSetupTextureDoubleTMU_NoLock: Unexpected dual texture mode encountered\n");
return;