mirror/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-01-03 23:43:06 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Remove unused sRGB conversion functions

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
Source/Core/VideoCommon/TextureCacheBase.cpp
View File

@ -544,19 +544,6 @@ public:
}
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
{
u32 width;
@ -569,12 +556,6 @@ private:
Shape shape;
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)
{
const auto* p = src + (x + y * src_shape.row_length) * 4;