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support texture lod query for framebuffer fetch

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Samuliak 2025-01-10 09:55:35 +01:00
parent d9bf99cb20
commit 4479584eb6
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1 changed files with 20 additions and 13 deletions
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33
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerEmitMSL.cpp
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@ -2261,9 +2261,9 @@ static void _emitTEXSampleTextureCode(LatteDecompilerShaderContext* shaderContex
}
// Do a framebuffer fetch if possible
// TODO: support comparison samplers
if (static_cast<MetalRenderer*>(g_renderer.get())->SupportsFramebufferFetch())
{
// TODO: filter out more?
uint8 renderTargetIndex = shaderContext->shader->textureRenderTargetIndex[texInstruction->textureFetch.textureIndex];
if (renderTargetIndex != 255)
{
@ -2720,24 +2720,31 @@ static void _emitTEXGetCompTexLodCode(LatteDecompilerShaderContext* shaderContex
src->add(" = ");
_emitTypeConversionPrefixMSL(shaderContext, LATTE_DECOMPILER_DTYPE_FLOAT, shaderContext->typeTracker.defaultDataType);
if( shaderContext->shader->textureUnitDim[texInstruction->textureFetch.textureIndex] == Latte::E_DIM::DIM_CUBEMAP )
if (static_cast<MetalRenderer*>(g_renderer.get())->SupportsFramebufferFetch() && shaderContext->shader->textureRenderTargetIndex[texInstruction->textureFetch.textureIndex] != 255)
{
// 3 coordinates
if(shaderContext->typeTracker.defaultDataType == LATTE_DECOMPILER_DTYPE_FLOAT)
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, {}.{}{}{}),0.0,0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]], resultElemTable[texInstruction->textureFetch.srcSel[2]]);
else
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, bitCast<float>({}.{}{}{})),0.0,0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]], resultElemTable[texInstruction->textureFetch.srcSel[2]]);
// We assume that textures accessed as framebuffer fetch are always sampled at pixel coordinates, therefore the lod would always be 0.0
src->add("float4(0.0, 0.0, 0.0, 0.0)");
}
else
{
if (shaderContext->typeTracker.defaultDataType == LATTE_DECOMPILER_DTYPE_FLOAT)
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, {}.{}{}),0.0,0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]]);
else
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, bitCast<float>({}.{}{})),0.0,0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]]);
debugBreakpoint();
if (shaderContext->shader->textureUnitDim[texInstruction->textureFetch.textureIndex] == Latte::E_DIM::DIM_CUBEMAP)
{
// 3 coordinates
if(shaderContext->typeTracker.defaultDataType == LATTE_DECOMPILER_DTYPE_FLOAT)
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, {}.{}{}{}), 0.0, 0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]], resultElemTable[texInstruction->textureFetch.srcSel[2]]);
else
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, bitCast<float>({}.{}{}{})), 0.0, 0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]], resultElemTable[texInstruction->textureFetch.srcSel[2]]);
}
else
{
if (shaderContext->typeTracker.defaultDataType == LATTE_DECOMPILER_DTYPE_FLOAT)
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, {}.{}{}), 0.0, 0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]]);
else
src->addFmt("float4(textureCalculateLod(tex{}, samplr{}, bitCast<float>({}.{}{})), 0.0, 0.0)", texInstruction->textureFetch.textureIndex, texInstruction->textureFetch.textureIndex, _getRegisterVarName(shaderContext, texInstruction->srcGpr), resultElemTable[texInstruction->textureFetch.srcSel[0]], resultElemTable[texInstruction->textureFetch.srcSel[1]]);
debugBreakpoint();
}
}
_emitTypeConversionSuffixMSL(shaderContext, LATTE_DECOMPILER_DTYPE_FLOAT, shaderContext->typeTracker.defaultDataType);
src->add(".");