NAME
SDL_PremultiplySurfaceAlpha - Premultiply the alpha in a surface.
HEADER FILE
Defined in SDL3/SDL_surface.h
SYNOPSIS
#include "SDL3/SDL.h"
bool SDL_PremultiplySurfaceAlpha(SDL_Surface *surface, bool linear);
DESCRIPTION
This is safe to use with src == dst, but not for other overlapping areas.
FUNCTION PARAMETERS
- surface
-
the surface to modify.
- linear
-
true to convert from sRGB to linear space for the alpha multiplication, false to do multiplication in sRGB space.
RETURN VALUE
Returns true on success or false on failure; call
SDL_GetError () for more information.
THREAD SAFETY
This function is not thread safe.
AVAILABILITY
This function is available since SDL 3.2.0.