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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

28
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerAnalyzer.cpp
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@ -287,15 +287,15 @@ void LatteDecompiler_analyzeTEXClause(LatteDecompilerShaderContext* shaderContex
LatteDecompilerShader* shader = shaderContext->shader;
for(auto& texInstruction : cfInstruction->instructionsTEX)
{
if( texInstruction.opcode == GPU7_TEX_INST_SAMPLE ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_L ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_LB ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_LZ ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C ||
if( texInstruction.opcode == GPU7_TEX_INST_SAMPLE ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_L ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_LB ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_LZ ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C_L ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C_LZ ||
texInstruction.opcode == GPU7_TEX_INST_FETCH4 ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_G ||
texInstruction.opcode == GPU7_TEX_INST_FETCH4 ||
texInstruction.opcode == GPU7_TEX_INST_SAMPLE_G ||
texInstruction.opcode == GPU7_TEX_INST_LD )
{
if (texInstruction.textureFetch.textureIndex < 0 || texInstruction.textureFetch.textureIndex >= LATTE_NUM_MAX_TEX_UNITS)
@ -313,7 +313,7 @@ void LatteDecompiler_analyzeTEXClause(LatteDecompilerShaderContext* shaderContex
shader->textureUnitSamplerAssignment[texInstruction.textureFetch.textureIndex] = texInstruction.textureFetch.samplerIndex;
if( texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C || texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C_L || texInstruction.opcode == GPU7_TEX_INST_SAMPLE_C_LZ)
shader->textureUsesDepthCompare[texInstruction.textureFetch.textureIndex] = true;
bool useTexelCoords = false;
if (texInstruction.opcode == GPU7_TEX_INST_SAMPLE && (texInstruction.textureFetch.unnormalized[0] && texInstruction.textureFetch.unnormalized[1] && texInstruction.textureFetch.unnormalized[2] && texInstruction.textureFetch.unnormalized[3]))
useTexelCoords = true;
@ -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();
@ -419,7 +419,7 @@ void LatteDecompiler_analyzeExport(LatteDecompilerShaderContext* shaderContext,
void LatteDecompiler_analyzeSubroutine(LatteDecompilerShaderContext* shaderContext, uint32 cfAddr)
{
// analyze CF and clauses up to RET statement
// todo - find cfInstruction index from cfAddr
cemu_assert_debug(false);
@ -505,9 +505,9 @@ namespace LatteDecompiler
decompilerContext->hasUniformVarBlock = true;
else if (decompilerContext->shader->uniformMode == LATTE_DECOMPILER_UNIFORM_MODE_FULL_CFILE)
decompilerContext->hasUniformVarBlock = true;
bool hasAnyViewportScaleDisabled =
!decompilerContext->contextRegistersNew->PA_CL_VTE_CNTL.get_VPORT_X_SCALE_ENA() ||
bool hasAnyViewportScaleDisabled =
!decompilerContext->contextRegistersNew->PA_CL_VTE_CNTL.get_VPORT_X_SCALE_ENA() ||
!decompilerContext->contextRegistersNew->PA_CL_VTE_CNTL.get_VPORT_Y_SCALE_ENA() ||
!decompilerContext->contextRegistersNew->PA_CL_VTE_CNTL.get_VPORT_Z_SCALE_ENA();
// we currently only support all on/off. Individual component scaling is not supported
@ -803,7 +803,7 @@ void LatteDecompiler_analyze(LatteDecompilerShaderContext* shaderContext, LatteD
for(sint32 i=0; i<LATTE_NUM_MAX_TEX_UNITS; i++)
{
if (!shaderContext->output->textureUnitMask[i])
if (!shaderContext->output->textureUnitMask[i])
{
// texture unit not used
shader->textureUnitDim[i] = (Latte::E_DIM)0xFF;

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);