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fix: writing to depth from a fragment shader

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This commit is contained in:
Samuliak 2024-08-07 21:14:31 +02:00
parent 1bcdade83e
commit a50ce997df
4 changed files with 25 additions and 22 deletions
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2
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompiler.h
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@ -182,6 +182,8 @@ struct LatteDecompilerShader
// analyzer stage (pixel outputs)
uint32 pixelColorOutputMask{ 0 }; // from LSB to MSB, 1 bit per written output. 1 if written (indices of color attachments)
// analyzer stage (depth write)
bool depthWritten{ false };
// analyzer stage (geometry shader parameters/inputs)
uint32 ringParameterCount{ 0 };
uint32 ringParameterCountFromPrevStage{ 0 }; // used in geometry shader to hold VS ringParameterCount

2
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerAnalyzer.cpp
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@ -393,7 +393,7 @@ void LatteDecompiler_analyzeExport(LatteDecompilerShaderContext* shaderContext,
}
else if( cfInstruction->exportType == 0 && cfInstruction->exportArrayBase == 61 )
{
// writes pixel depth
shader->depthWritten = true;
}
else
debugBreakpoint();

13
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerEmitMSL.cpp
View File

@ -2441,11 +2441,12 @@ static void _emitTEXSampleTextureCode(LatteDecompilerShaderContext* shaderContex
src->add(")");
}
}
else if( texOpcode == GPU7_TEX_INST_SAMPLE_LZ || texOpcode == GPU7_TEX_INST_SAMPLE_C_LZ )
{
// TODO: correct?
src->add(", level(0.0)");
}
// TODO: uncomment?
//else if( texOpcode == GPU7_TEX_INST_SAMPLE_LZ || texOpcode == GPU7_TEX_INST_SAMPLE_C_LZ )
//{
// // TODO: correct?
// src->add(", level(0.0)");
//}
}
// gradient parameters
if (texOpcode == GPU7_TEX_INST_SAMPLE_G)
@ -3215,7 +3216,7 @@ static void _emitExportCode(LatteDecompilerShaderContext* shaderContext, LatteDe
cemu_assert_unimplemented(); // ukn
}
src->add("out.depth = ");
src->add("out.passDepth = ");
_emitExportGPRReadCode(shaderContext, cfInstruction, LATTE_DECOMPILER_DTYPE_FLOAT, 0);
src->add(".x");
src->add(";" _CRLF);

4
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerEmitMSLHeader.hpp
View File

@ -272,9 +272,9 @@ namespace LatteDecompiler
}
// generate depth output for pixel shader
if (decompilerContext->shader->pixelDepthOutputMask)
if (decompilerContext->shader->depthWritten)
{
src->add("float passDepth [[depth(any)]];" _CRLF);
src->add("float passDepth [[depth]];" _CRLF);
}
src->add("};" _CRLF _CRLF);