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Remove unused sRGB conversion functions

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Now the arbitrary mipmap reference downsampling is just done in linear space,
these are no longer used.
This commit is contained in:
Jonathan Hamilton
2018-07-02 09:46:16 -07:00
parent 431b9e76be
commit b54803a074
1 changed files with 0 additions and 19 deletions
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19
Source/Core/VideoCommon/TextureCacheBase.cpp
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@ -544,19 +544,6 @@ public:
} }
private: private:
static float SRGBToLinear(u8 srgb_byte)
{
auto srgb_float = static_cast<float>(srgb_byte) / 256.f;
// approximations found on
// http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
return srgb_float * (srgb_float * (srgb_float * 0.305306011f + 0.682171111f) + 0.012522878f);
}
static u8 LinearToSRGB(float linear)
{
return static_cast<u8>(std::max(1.055f * std::pow(linear, 0.416666667f) - 0.055f, 0.f) * 256.f);
}
struct Shape struct Shape
{ {
u32 width; u32 width;
@ -569,12 +556,6 @@ private:
Shape shape; Shape shape;
const u8* pixels; const u8* pixels;
static PixelRGBAf Sample(const u8* src, const Shape& src_shape, u32 x, u32 y)
{
const auto* p = src + (x + y * src_shape.row_length) * 4;
return {{SRGBToLinear(p[0]), SRGBToLinear(p[1]), SRGBToLinear(p[2]), SRGBToLinear(p[3])}};
}
static PixelRGBAu8 SampleLinear(const u8* src, const Shape& src_shape, u32 x, u32 y) static PixelRGBAu8 SampleLinear(const u8* src, const Shape& src_shape, u32 x, u32 y)
{ {
const auto* p = src + (x + y * src_shape.row_length) * 4; const auto* p = src + (x + y * src_shape.row_length) * 4;