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We already have functions for converting between sRGB and linear space

This commit is contained in:
Sam Lantinga 2024-09-11 11:51:53 -07:00
parent 667a3e40e9
commit 92255d36d4
1 changed files with 6 additions and 16 deletions
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22
src/render/SDL_render.c
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@ -172,16 +172,6 @@ void SDL_SetupRendererColorspace(SDL_Renderer *renderer, SDL_PropertiesID props)
renderer->output_colorspace = (SDL_Colorspace)SDL_GetNumberProperty(props, SDL_PROP_RENDERER_CREATE_OUTPUT_COLORSPACE_NUMBER, SDL_COLORSPACE_SRGB);
}
static float sRGBtoLinear(float v)
{
return v <= 0.04045f ? (v / 12.92f) : SDL_powf(((v + 0.055f) / 1.055f), 2.4f);
}
static float sRGBfromLinear(float v)
{
return v <= 0.0031308f ? (v * 12.92f) : (SDL_powf(v, 1.0f / 2.4f) * 1.055f - 0.055f);
}
bool SDL_RenderingLinearSpace(SDL_Renderer *renderer)
{
SDL_Colorspace colorspace;
@ -199,16 +189,16 @@ bool SDL_RenderingLinearSpace(SDL_Renderer *renderer)
void SDL_ConvertToLinear(SDL_FColor *color)
{
color->r = sRGBtoLinear(color->r);
color->g = sRGBtoLinear(color->g);
color->b = sRGBtoLinear(color->b);
color->r = SDL_sRGBtoLinear(color->r);
color->g = SDL_sRGBtoLinear(color->g);
color->b = SDL_sRGBtoLinear(color->b);
}
void SDL_ConvertFromLinear(SDL_FColor *color)
{
color->r = sRGBfromLinear(color->r);
color->g = sRGBfromLinear(color->g);
color->b = sRGBfromLinear(color->b);
color->r = SDL_sRGBfromLinear(color->r);
color->g = SDL_sRGBfromLinear(color->g);
color->b = SDL_sRGBfromLinear(color->b);
}
static SDL_INLINE void DebugLogRenderCommands(const SDL_RenderCommand *cmd)