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[d3d9] Add AreFormatsSimilar helper

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This commit is contained in:
Joshua Ashton 2020-01-17 05:55:47 +00:00
parent 9fce945b62
commit e5df573292
2 changed files with 9 additions and 5 deletions
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6
src/d3d9/d3d9_device.cpp
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@ -876,11 +876,7 @@ namespace dxvk {
// We may only fast path copy non identicals one way!
// We don't know what garbage could be in the X8 data.
bool similar = (srcFormat == dstFormat)
|| (srcFormat == D3D9Format::A8B8G8R8 && dstFormat == D3D9Format::X8B8G8R8)
|| (srcFormat == D3D9Format::A8R8G8B8 && dstFormat == D3D9Format::X8R8G8B8)
|| (srcFormat == D3D9Format::A1R5G5B5 && dstFormat == D3D9Format::X1R5G5B5)
|| (srcFormat == D3D9Format::A4R4G4B4 && dstFormat == D3D9Format::X4R4G4B4);
bool similar = AreFormatsSimilar(srcFormat, dstFormat);
// Copies are only supported on similar formats.
fastPath &= similar;

8
src/d3d9/d3d9_util.h
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@ -239,4 +239,12 @@ namespace dxvk {
return D3DRENDERSTATETYPE(i ? D3DRS_COLORWRITEENABLE1 + i - 1 : D3DRS_COLORWRITEENABLE);
}
inline bool AreFormatsSimilar(D3D9Format srcFormat, D3D9Format dstFormat) {
return (srcFormat == dstFormat)
|| (srcFormat == D3D9Format::A8B8G8R8 && dstFormat == D3D9Format::X8B8G8R8)
|| (srcFormat == D3D9Format::A8R8G8B8 && dstFormat == D3D9Format::X8R8G8B8)
|| (srcFormat == D3D9Format::A1R5G5B5 && dstFormat == D3D9Format::X1R5G5B5)
|| (srcFormat == D3D9Format::A4R4G4B4 && dstFormat == D3D9Format::X4R4G4B4);
}
}