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Avoid recomputing the shaderblend setup in ComputeFragmentShaderID.

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This commit is contained in:
Henrik Rydgård 2022-09-02 23:06:41 +02:00
parent 0fe064d970
commit fd6ab4c495
3 changed files with 11 additions and 10 deletions
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4
GPU/Common/GPUStateUtils.cpp
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@ -1085,7 +1085,6 @@ void ConvertBlendState(GenericBlendState &blendState, bool allowFramebufferRead,
blendState.applyFramebufferRead = false;
blendState.dirtyShaderBlendFixValues = false;
blendState.useBlendColor = false;
blendState.replaceAlphaWithStencil = REPLACE_ALPHA_NO;
ReplaceBlendType replaceBlend = ReplaceBlendWithShader(allowFramebufferRead, gstate_c.framebufFormat);
if (forceReplaceBlend) {
@ -1094,6 +1093,8 @@ void ConvertBlendState(GenericBlendState &blendState, bool allowFramebufferRead,
blendState.replaceBlend = replaceBlend;
ReplaceAlphaType replaceAlphaWithStencil = ReplaceAlphaWithStencil(replaceBlend);
blendState.replaceAlphaWithStencil = replaceAlphaWithStencil;
bool usePreSrc = false;
bool blueToAlpha = false;
@ -1115,7 +1116,6 @@ void ConvertBlendState(GenericBlendState &blendState, bool allowFramebufferRead,
blendState.blendEnabled = true;
blendState.applyFramebufferRead = true;
blendState.resetFramebufferRead = false;
blendState.replaceAlphaWithStencil = replaceAlphaWithStencil;
break;
case REPLACE_BLEND_PRE_SRC:

16
GPU/Common/ShaderId.cpp
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@ -263,15 +263,15 @@ void ComputeFragmentShaderID(FShaderID *id_out, const ComputedPipelineState &pip
bool doFlatShading = gstate.getShadeMode() == GE_SHADE_FLAT;
bool useShaderDepal = gstate_c.useShaderDepal;
bool useSmoothedDepal = gstate_c.useSmoothedShaderDepal;
bool colorWriteMask = IsColorWriteMaskComplex(gstate_c.allowFramebufferRead);
bool colorWriteMask = pipelineState.maskState.applyFramebufferRead;
// Note how we here recompute some of the work already done in state mapping.
// Not ideal! At least we share the code.
ReplaceBlendType replaceBlend = ReplaceBlendWithShader(gstate_c.allowFramebufferRead, gstate_c.framebufFormat);
if (colorWriteMask) {
replaceBlend = REPLACE_BLEND_READ_FRAMEBUFFER;
}
ReplaceAlphaType stencilToAlpha = ReplaceAlphaWithStencil(replaceBlend);
ReplaceBlendType replaceBlend = pipelineState.blendState.replaceBlend;
ReplaceAlphaType stencilToAlpha = pipelineState.blendState.replaceAlphaWithStencil;
// For debugging, can probably delete soon.
// _assert_(colorWriteMask == IsColorWriteMaskComplex(gstate_c.allowFramebufferRead));
// _assert_(replaceBlend == ReplaceBlendWithShader(gstate_c.allowFramebufferRead, gstate_c.framebufFormat);
// _assert_(stencilToAlpha == ReplaceAlphaWithStencil(replaceBlend));
// All texfuncs except replace are the same for RGB as for RGBA with full alpha.
// Note that checking this means that we must dirty the fragment shader ID whenever textureFullAlpha changes.

1
GPU/Vulkan/StateMappingVulkan.cpp
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@ -169,6 +169,7 @@ void DrawEngineVulkan::ConvertStateToVulkanKey(FramebufferManagerVulkan &fbManag
if (blendState.applyFramebufferRead || maskState.applyFramebufferRead) {
ApplyFramebufferRead(&fboTexNeedsBind_);
// The shader takes over the responsibility for blending, so recompute.
// We might still end up using blend to write something to alpha.
ApplyStencilReplaceAndLogicOpIgnoreBlend(blendState.replaceAlphaWithStencil, blendState);
dirtyRequiresRecheck_ |= DIRTY_FRAGMENTSHADER_STATE;
gstate_c.Dirty(DIRTY_FRAGMENTSHADER_STATE);