Panda3DS/include/renderer_mtl/pica_to_mtl.hpp
2024-07-03 10:21:49 +02:00

44 lines
1.6 KiB
C++

#pragma once
#include <Metal/Metal.hpp>
#include "PICA/regs.hpp"
namespace PICA {
inline MTL::PixelFormat toMTLPixelFormatColor(ColorFmt format) {
switch (format) {
case ColorFmt::RGBA8: return MTL::PixelFormatRGBA8Unorm;
case ColorFmt::RGB8: return MTL::PixelFormatRGBA8Unorm; // TODO: return the correct format
case ColorFmt::RGBA5551: return MTL::PixelFormatBGR5A1Unorm;
case ColorFmt::RGB565: return MTL::PixelFormatB5G6R5Unorm; // TODO: check if this is correct
case ColorFmt::RGBA4: return MTL::PixelFormatABGR4Unorm; // TODO: check if this is correct
}
}
inline MTL::PixelFormat toMTLPixelFormatDepth(DepthFmt format) {
switch (format) {
case DepthFmt::Depth16: return MTL::PixelFormatDepth16Unorm;
case DepthFmt::Unknown1: return MTL::PixelFormatInvalid;
case DepthFmt::Depth24: return MTL::PixelFormatDepth32Float; // TODO: is this okay?
// Apple sillicon doesn't support 24-bit depth buffers, so we use 32-bit instead
case DepthFmt::Depth24Stencil8: return MTL::PixelFormatDepth32Float_Stencil8;
}
}
inline MTL::CompareFunction toMTLCompareFunc(u8 func) {
switch (func) {
case 0: return MTL::CompareFunctionNever;
case 1: return MTL::CompareFunctionAlways;
case 2: return MTL::CompareFunctionEqual;
case 3: return MTL::CompareFunctionNotEqual;
case 4: return MTL::CompareFunctionLess;
case 5: return MTL::CompareFunctionLessEqual;
case 6: return MTL::CompareFunctionGreater;
case 7: return MTL::CompareFunctionGreaterEqual;
default: panic("Unknown compare function %u", func);
}
return MTL::CompareFunctionAlways;
}
} // namespace PICA