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Merge pull request #7625 from aws-lumberyard-dev/cgalvan/AddSupportForUNORM_SRGB

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Added support for several UNORM_SRGB formats
This commit is contained in:
Chris Galvan
2022-02-16 09:18:34 -06:00
committed by GitHub
parent 0e328afcdd 9a32d433f4
commit c2d6ba0c69
12 changed files with 77 additions and 152 deletions
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Gems/Atom/Asset/ImageProcessingAtom/Code/Source/Converters/Gamma.cpp
+3 -13
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@@ -11,6 +11,7 @@
#include <Processing/PixelFormatInfo.h>
#include <Processing/ImageFlags.h>
#include <Atom/ImageProcessing/PixelFormats.h>
#include <AzCore/Math/Color.h>
#include <Converters/FIR-Weights.h>
#include <Converters/PixelOperation.h>
@@ -118,19 +119,8 @@ namespace ImageProcessingAtom
float m_fMaxDiff = 0.0f;
};
static float GammaToLinear(float x)
{
return (x <= 0.04045f) ? x / 12.92f : powf((x + 0.055f) / 1.055f, 2.4f);
}
static float LinearToGamma(float x)
{
return (x <= 0.0031308f) ? x * 12.92f : 1.055f * powf(x, 1.0f / 2.4f) - 0.055f;
}
static FunctionLookupTable<1024> s_lutGammaToLinear(GammaToLinear, 0.04045f, 0.00001f);
static FunctionLookupTable<1024> s_lutLinearToGamma(LinearToGamma, 0.05f, 0.00001f);
static FunctionLookupTable<1024> s_lutGammaToLinear(AZ::Color::ConvertSrgbGammaToLinear, 0.04045f, 0.00001f);
static FunctionLookupTable<1024> s_lutLinearToGamma(AZ::Color::ConvertSrgbLinearToGamma, 0.05f, 0.00001f);
///////////////////////////////////////////////////////////////////////////////////