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Added WIC_FLAGS_DEFAULT_SRGB flag (#178)

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Chuck Walbourn 2020-05-27 02:29:55 -07:00 committed by GitHub
parent 07c0aaa045
commit 21f7e28b80
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 73 additions and 44 deletions
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3
DirectXTex/DirectXTex.h
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@ -202,6 +202,9 @@ namespace DirectX
WIC_FLAGS_FORCE_LINEAR = 0x80,
// Writes linear gamma metadata into the file reguardless of format
WIC_FLAGS_DEFAULT_SRGB = 0x100,
// If no colorspace is specified, assume sRGB
WIC_FLAGS_DITHER = 0x10000,
// Use ordered 4x4 dithering for any required conversions

34
DirectXTex/DirectXTexWIC.cpp
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@ -318,33 +318,53 @@ namespace
PROPVARIANT value;
PropVariantInit(&value);
// Check for colorspace chunks
if (memcmp(&containerFormat, &GUID_ContainerFormatPng, sizeof(GUID)) == 0)
{
// Check for sRGB chunk
if (SUCCEEDED(metareader->GetMetadataByName(L"/sRGB/RenderingIntent", &value)) && value.vt == VT_UI1)
{
sRGB = true;
}
else if (SUCCEEDED(metareader->GetMetadataByName(L"/gAMA/ImageGamma", &value)) && value.vt == VT_UI4)
{
sRGB = (value.uintVal == 45455);
}
else
{
sRGB = (flags & WIC_FLAGS_DEFAULT_SRGB) != 0;
}
}
#if defined(_XBOX_ONE) && defined(_TITLE)
else if (memcmp(&containerFormat, &GUID_ContainerFormatJpeg, sizeof(GUID)) == 0)
{
if (SUCCEEDED(metareader->GetMetadataByName(L"/app1/ifd/exif/{ushort=40961}", &value)) && value.vt == VT_UI2 && value.uiVal == 1)
if (SUCCEEDED(metareader->GetMetadataByName(L"/app1/ifd/exif/{ushort=40961}", &value)) && value.vt == VT_UI2)
{
sRGB = true;
sRGB = (value.uiVal == 1);
}
else
{
sRGB = (flags & WIC_FLAGS_DEFAULT_SRGB) != 0;
}
}
else if (memcmp(&containerFormat, &GUID_ContainerFormatTiff, sizeof(GUID)) == 0)
{
if (SUCCEEDED(metareader->GetMetadataByName(L"/ifd/exif/{ushort=40961}", &value)) && value.vt == VT_UI2 && value.uiVal == 1)
if (SUCCEEDED(metareader->GetMetadataByName(L"/ifd/exif/{ushort=40961}", &value)) && value.vt == VT_UI2)
{
sRGB = true;
sRGB = (value.uiVal == 1);
}
else
{
sRGB = (flags & WIC_FLAGS_DEFAULT_SRGB) != 0;
}
}
#else
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2 && value.uiVal == 1)
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2)
{
sRGB = true;
sRGB = (value.uiVal == 1);
}
else
{
sRGB = (flags & WIC_FLAGS_DEFAULT_SRGB) != 0;
}
#endif

11
WICTextureLoader/WICTextureLoader11.cpp
View File

@ -518,23 +518,26 @@ namespace
GUID containerFormat;
if (SUCCEEDED(metareader->GetContainerFormat(&containerFormat)))
{
// Check for sRGB colorspace metadata
bool sRGB = false;
PROPVARIANT value;
PropVariantInit(&value);
// Check for colorspace chunks
if (memcmp(&containerFormat, &GUID_ContainerFormatPng, sizeof(GUID)) == 0)
{
// Check for sRGB chunk
if (SUCCEEDED(metareader->GetMetadataByName(L"/sRGB/RenderingIntent", &value)) && value.vt == VT_UI1)
{
sRGB = true;
}
else if (SUCCEEDED(metareader->GetMetadataByName(L"/gAMA/ImageGamma", &value)) && value.vt == VT_UI4)
{
sRGB = (value.uintVal == 45455);
}
}
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2 && value.uiVal == 1)
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2)
{
sRGB = true;
sRGB = (value.uiVal == 1);
}
(void)PropVariantClear(&value);

11
WICTextureLoader/WICTextureLoader12.cpp
View File

@ -429,23 +429,26 @@ namespace
GUID containerFormat;
if (SUCCEEDED(metareader->GetContainerFormat(&containerFormat)))
{
// Check for sRGB colorspace metadata
bool sRGB = false;
PROPVARIANT value;
PropVariantInit(&value);
// Check for colorspace chunks
if (memcmp(&containerFormat, &GUID_ContainerFormatPng, sizeof(GUID)) == 0)
{
// Check for sRGB chunk
if (SUCCEEDED(metareader->GetMetadataByName(L"/sRGB/RenderingIntent", &value)) && value.vt == VT_UI1)
{
sRGB = true;
}
else if (SUCCEEDED(metareader->GetMetadataByName(L"/gAMA/ImageGamma", &value)) && value.vt == VT_UI4)
{
sRGB = (value.uintVal == 45455);
}
}
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2 && value.uiVal == 1)
else if (SUCCEEDED(metareader->GetMetadataByName(L"System.Image.ColorSpace", &value)) && value.vt == VT_UI2)
{
sRGB = true;
sRGB = (value.uiVal == 1);
}
(void)PropVariantClear(&value);