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Shader recompiler: Finish alpha test and stub lighting

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wheremyfoodat 2024-07-15 04:51:08 +03:00
parent 0878474e01
commit fe53214c86
1 changed files with 16 additions and 4 deletions
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20
src/core/PICA/shader_gen_glsl.cpp
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@ -340,6 +340,10 @@ void FragmentGenerator::getSource(std::string& shader, TexEnvConfig::Source sour
case TexEnvConfig::Source::Previous: shader += "combinerOutput"; break;
case TexEnvConfig::Source::Constant: shader += "constantColors[" + std::to_string(index) + "]"; break;
case TexEnvConfig::Source::PreviousBuffer: shader += "previousBuffer"; break;
// Lighting
case TexEnvConfig::Source::PrimaryFragmentColor:
case TexEnvConfig::Source::SecondaryFragmentColor: shader += "vec4(0.0, 0.0, 0.0, 1.0)"; break;
default:
Helpers::warn("Unimplemented TEV source: %d", static_cast<int>(source));
@ -397,15 +401,23 @@ void FragmentGenerator::applyAlphaTest(std::string& shader, const PICARegs& regs
return;
}
shader += "if (";
shader += "float alphaReferenceFloat = float(alphaReference) / 255.0;\n";
shader += "if (!(";
switch (function) {
case CompareFunction::Never: shader += "true"; break;
case CompareFunction::Always: shader += "false"; break;
case CompareFunction::Never: shader += "false"; break;
case CompareFunction::Always: shader += "true"; break;
case CompareFunction::Equal: shader += "combinerOutput.a == alphaReferenceFloat"; break;
case CompareFunction::NotEqual: shader += "combinerOutput.a != alphaReferenceFloat"; break;
case CompareFunction::Less: shader += "combinerOutput.a < alphaReferenceFloat"; break;
case CompareFunction::LessOrEqual: shader += "combinerOutput.a <= alphaReferenceFloat"; break;
case CompareFunction::Greater: shader += "combinerOutput.a > alphaReferenceFloat"; break;
case CompareFunction::GreaterOrEqual: shader += "combinerOutput.a >= alphaReferenceFloat"; break;
default:
Helpers::warn("Unimplemented alpha test function");
shader += "false";
break;
}
shader += ") { discard; }\n";
shader += ")) { discard; }\n";
}