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Force non-WIC paths for FP32->FP16 conversions (#99)

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Chuck Walbourn 2018-05-11 18:56:05 -07:00 committed by GitHub
parent 3771e6c66d
commit e0457acb23
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 1 deletions
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26
DirectXTex/DirectXTexConvert.cpp
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@ -4301,6 +4301,7 @@ namespace
return false; return false;
} }
// Check for special cases
#if defined(_XBOX_ONE) && defined(_TITLE) #if defined(_XBOX_ONE) && defined(_TITLE)
if (sformat == DXGI_FORMAT_R16G16B16A16_FLOAT if (sformat == DXGI_FORMAT_R16G16B16A16_FLOAT
|| sformat == DXGI_FORMAT_R16_FLOAT || sformat == DXGI_FORMAT_R16_FLOAT
@ -4312,7 +4313,30 @@ namespace
} }
#endif #endif
// Check for special cases switch (sformat)
{
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32_FLOAT:
case DXGI_FORMAT_R32G32_FLOAT:
case DXGI_FORMAT_R32_FLOAT:
case DXGI_FORMAT_D32_FLOAT:
switch (tformat)
{
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16_FLOAT:
case DXGI_FORMAT_R16_FLOAT:
// WIC conversions for FP32->FP16 can result in NaN values instead of clamping for min/max value
return false;
default:
break;
}
break;
default:
break;
}
switch (sformat) switch (sformat)
{ {
case DXGI_FORMAT_R32G32B32A32_FLOAT: case DXGI_FORMAT_R32G32B32A32_FLOAT: