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Skip binding when the test won't be used.

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Unknown W. Brackets 2014-08-24 16:50:14 -07:00
parent 95a620695b
commit c0908421ba
3 changed files with 12 additions and 2 deletions
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8
GPU/GLES/FragmentShaderGenerator.cpp
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@ -109,6 +109,10 @@ bool IsAlphaTestTriviallyTrue() {
}
}
bool IsAlphaTestAgainstZero() {
return gstate.getAlphaTestRef() == 0 && gstate.getAlphaTestMask() == 0xFF;
}
const bool nonAlphaSrcFactors[16] = {
true, // GE_SRCBLEND_DSTCOLOR,
true, // GE_SRCBLEND_INVDSTCOLOR,
@ -362,7 +366,7 @@ void ComputeFragmentShaderID(FragmentShaderID *id) {
bool lmode = gstate.isUsingSecondaryColor() && gstate.isLightingEnabled();
bool enableFog = gstate.isFogEnabled() && !gstate.isModeThrough();
bool enableAlphaTest = gstate.isAlphaTestEnabled() && !IsAlphaTestTriviallyTrue() && !g_Config.bDisableAlphaTest;
bool alphaTestAgainstZero = gstate.getAlphaTestRef() == 0 && gstate.getAlphaTestMask() == 0xFF;
bool alphaTestAgainstZero = IsAlphaTestAgainstZero();
bool enableColorTest = gstate.isColorTestEnabled() && !IsColorTestTriviallyTrue();
bool enableColorDoubling = gstate.isColorDoublingEnabled() && gstate.isTextureMapEnabled();
bool doTextureProjection = gstate.getUVGenMode() == GE_TEXMAP_TEXTURE_MATRIX;
@ -531,7 +535,7 @@ void GenerateFragmentShader(char *buffer) {
bool doTexture = gstate.isTextureMapEnabled() && !gstate.isModeClear();
bool enableFog = gstate.isFogEnabled() && !gstate.isModeThrough() && !gstate.isModeClear();
bool enableAlphaTest = gstate.isAlphaTestEnabled() && !IsAlphaTestTriviallyTrue() && !gstate.isModeClear() && !g_Config.bDisableAlphaTest;
bool alphaTestAgainstZero = gstate.getAlphaTestRef() == 0 && gstate.getAlphaTestMask() == 0xFF;
bool alphaTestAgainstZero = IsAlphaTestAgainstZero();
bool enableColorTest = gstate.isColorTestEnabled() && !IsColorTestTriviallyTrue() && !gstate.isModeClear();
bool enableColorDoubling = gstate.isColorDoublingEnabled() && gstate.isTextureMapEnabled();
bool doTextureProjection = gstate.getUVGenMode() == GE_TEXMAP_TEXTURE_MATRIX;

1
GPU/GLES/FragmentShaderGenerator.h
View File

@ -72,6 +72,7 @@ enum ReplaceBlendType {
REPLACE_BLEND_COPY_FBO,
};
bool IsAlphaTestAgainstZero();
bool IsAlphaTestTriviallyTrue();
bool IsColorTestTriviallyTrue();
StencilValueType ReplaceAlphaWithStencilType();

5
GPU/GLES/FragmentTestCache.cpp
View File

@ -16,6 +16,7 @@
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include "Core/Config.h"
#include "GPU/GLES/FragmentShaderGenerator.h"
#include "GPU/GLES/FragmentTestCache.h"
#include "GPU/GPUState.h"
@ -45,6 +46,10 @@ void FragmentTestCache::BindTestTexture(GLenum unit) {
// Already bound, hurray.
return;
}
if (!gstate.isColorTestEnabled() && (IsAlphaTestAgainstZero() || IsAlphaTestTriviallyTrue())) {
// Common case: testing against zero. Just skip it.
return;
}
glActiveTexture(unit);
glBindTexture(GL_TEXTURE_2D, tex);
// Always return to the default.