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d3d12: Use first color output for alpha discard instead of 0.

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Fix Naruto 2 shader miscompilation.
This commit is contained in:
Vincent Lejeune 2016-01-13 19:25:28 +01:00
parent 224facf3ba
commit b8e10225f9
1 changed files with 4 additions and 4 deletions
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8
rpcs3/Emu/RSX/D3D12/D3D12FragmentProgramDecompiler.cpp
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@ -222,21 +222,21 @@ void D3D12FragmentDecompiler::insertMainEnd(std::stringstream & OS)
{ "ocol3", m_ctrl & CELL_GCM_SHADER_CONTROL_32_BITS_EXPORTS ? "r4" : "h8" },
};
size_t num_output = 0;
std::string first_output_name;
OS << " PixelOutput Out = (PixelOutput)0;" << std::endl;
for (int i = 0; i < sizeof(table) / sizeof(*table); ++i)
{
if (m_parr.HasParam(PF_PARAM_NONE, "float4", table[i].second))
{
OS << " Out." << table[i].first << " = " << table[i].second << ";" << std::endl;
num_output++;
if (first_output_name.empty()) first_output_name = table[i].first;
}
}
if (m_ctrl & CELL_GCM_SHADER_CONTROL_DEPTH_EXPORT)
OS << " Out.depth = " << ((m_ctrl & CELL_GCM_SHADER_CONTROL_32_BITS_EXPORTS) ? "r1.z;" : "h0.z;") << std::endl;
// Shaders don't always output colors (for instance if they write to depth only)
if (num_output > 0)
OS << " if (isAlphaTested && Out.ocol0.a <= alphaRef) discard;" << std::endl;
if (!first_output_name.empty())
OS << " if (isAlphaTested && Out." << first_output_name << ".a <= alphaRef) discard;\n";
OS << " return Out;" << std::endl;
OS << "}" << std::endl;
}