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emulate logic op in the shader

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This commit is contained in:
Samuliak 2024-07-03 20:52:05 +02:00
parent dfe38a757c
commit 27c74d8974
2 changed files with 51 additions and 3 deletions
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6
src/core/renderer_mtl/renderer_mtl.cpp
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@ -353,9 +353,10 @@ void RendererMTL::drawVertices(PICA::PrimType primType, std::span<const PICA::Ve
pipelineHash.depthFmt = depthStencilRenderTarget->format;
}
// Blending
// Blending and logic op
pipelineHash.blendEnabled = (regs[PICA::InternalRegs::ColourOperation] & (1 << 8)) != 0;
u8 logicOp = 3; // Copy, which doesn't do anything
if (pipelineHash.blendEnabled) {
pipelineHash.blendControl = regs[PICA::InternalRegs::BlendFunc];
// TODO: constant color
@ -364,6 +365,8 @@ void RendererMTL::drawVertices(PICA::PrimType primType, std::span<const PICA::Ve
//const u8 g = Helpers::getBits<8, 8>(pipelineHash.constantColor);
//const u8 b = Helpers::getBits<16, 8>(pipelineHash.constantColor);
//const u8 a = Helpers::getBits<24, 8>(pipelineHash.constantColor);
} else {
logicOp = Helpers::getBits<0, 4>(regs[PICA::InternalRegs::LogicOp]);
}
MTL::RenderPipelineState* pipeline = drawPipelineCache.get(pipelineHash);
@ -406,6 +409,7 @@ void RendererMTL::drawVertices(PICA::PrimType primType, std::span<const PICA::Ve
bindTexturesToSlots(renderCommandEncoder);
renderCommandEncoder->setVertexBytes(&regs[0x48], 0x200 - 0x48, 0);
renderCommandEncoder->setFragmentBytes(&regs[0x48], 0x200 - 0x48, 0);
renderCommandEncoder->setFragmentBytes(&logicOp, sizeof(logicOp), 2);
renderCommandEncoder->drawPrimitives(toMTLPrimitiveType(primType), NS::UInteger(0), NS::UInteger(vertices.size()));
}