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GPU/SW: Use new 5-to-8 converters for RGBA8 display

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This commit is contained in:
Connor McLaughlin
2021-03-18 12:55:02 +10:00
parent 6c05413220
commit b13c51a2e2
8 changed files with 34 additions and 68 deletions
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24
src/core/gpu_sw.cpp
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@ -115,30 +115,16 @@ ALWAYS_INLINE u16 VRAM16ToOutput<HostDisplayPixelFormat::RGB565, u16>(u16 value)
template<>
ALWAYS_INLINE u32 VRAM16ToOutput<HostDisplayPixelFormat::RGBA8, u32>(u16 value)
{
u8 r = Truncate8(value & 31);
u8 g = Truncate8((value >> 5) & 31);
u8 b = Truncate8((value >> 10) & 31);
// 00012345 -> 1234545
b = (b << 3) | (b & 0b111);
g = (g << 3) | (g & 0b111);
r = (r << 3) | (r & 0b111);
return ZeroExtend32(r) | (ZeroExtend32(g) << 8) | (ZeroExtend32(b) << 16) | (0xFF000000u);
return VRAMRGBA5551ToRGBA8888(value);
}
template<>
ALWAYS_INLINE u32 VRAM16ToOutput<HostDisplayPixelFormat::BGRA8, u32>(u16 value)
{
u8 r = Truncate8(value & 31);
u8 g = Truncate8((value >> 5) & 31);
u8 b = Truncate8((value >> 10) & 31);
// 00012345 -> 1234545
b = (b << 3) | (b & 0b111);
g = (g << 3) | (g & 0b111);
r = (r << 3) | (r & 0b111);
const u32 value32 = ZeroExtend32(value);
const u32 r = VRAMConvert5To8(value32 & 31u);
const u32 g = VRAMConvert5To8((value32 >> 5) & 31u);
const u32 b = VRAMConvert5To8((value32 >> 10) & 31u);
return ZeroExtend32(b) | (ZeroExtend32(g) << 8) | (ZeroExtend32(r) << 16) | (0xFF000000u);
}