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Metal: Reimplement some texture formats on iOS

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This commit is contained in:
wheremyfoodat
2025-03-10 02:47:41 +02:00
parent 5990cb3b02
commit c59ee99364
3 changed files with 83 additions and 4 deletions
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24
include/renderer_mtl/pica_to_mtl.hpp
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@@ -10,6 +10,8 @@ namespace PICA {
size_t bytesPerTexel;
};
// iOS, at least on simulator, doesn't support a lot of more "exotic" texture formats, so we avoid them tehre
#ifndef PANDA3DS_IOS
constexpr PixelFormatInfo pixelFormatInfos[14] = {
{MTL::PixelFormatRGBA8Unorm, 4}, // RGBA8
{MTL::PixelFormatRGBA8Unorm, 4}, // RGB8
@@ -26,6 +28,24 @@ namespace PICA {
{MTL::PixelFormatRGBA8Unorm, 4}, // ETC1
{MTL::PixelFormatRGBA8Unorm, 4}, // ETC1A4
};
#else
constexpr PixelFormatInfo pixelFormatInfos[14] = {
{MTL::PixelFormatRGBA8Unorm, 4}, // RGBA8
{MTL::PixelFormatRGBA8Unorm, 4}, // RGB8
{MTL::PixelFormatBGR5A1Unorm, 2}, // RGBA5551
{MTL::PixelFormatRGBA8Unorm, 4}, // RGB565
{MTL::PixelFormatRGBA8Unorm, 4}, // RGBA4
{MTL::PixelFormatRGBA8Unorm, 4}, // IA8
{MTL::PixelFormatRG8Unorm, 2}, // RG8
{MTL::PixelFormatRGBA8Unorm, 4}, // I8
{MTL::PixelFormatA8Unorm, 1}, // A8
{MTL::PixelFormatRGBA8Unorm, 4}, // IA4
{MTL::PixelFormatRGBA8Unorm, 4}, // I4
{MTL::PixelFormatA8Unorm, 1}, // A4
{MTL::PixelFormatRGBA8Unorm, 4}, // ETC1
{MTL::PixelFormatRGBA8Unorm, 4}, // ETC1A4
};
#endif
inline PixelFormatInfo getPixelFormatInfo(TextureFmt format) { return pixelFormatInfos[static_cast<int>(format)]; }
@@ -35,7 +55,11 @@ namespace PICA {
case ColorFmt::RGB8: return MTL::PixelFormatRGBA8Unorm;
case ColorFmt::RGBA5551: return MTL::PixelFormatRGBA8Unorm; // TODO: use MTL::PixelFormatBGR5A1Unorm?
case ColorFmt::RGB565: return MTL::PixelFormatRGBA8Unorm; // TODO: use MTL::PixelFormatB5G6R5Unorm?
#ifdef PANDA3DS_IOS
case ColorFmt::RGBA4: return MTL::PixelFormatRGBA8Unorm; // IOS + Metal doesn't support AGBR4 properly, at least on simulator
#else
case ColorFmt::RGBA4: return MTL::PixelFormatABGR4Unorm;
#endif
}
}