SDL_SetSurfaceRLE - Man Page

#include <SDL3/SDL_surface.h>

bool SDL_SetSurfaceRLE(SDL_Surface *surface, bool enabled);

If RLE is enabled, color key and alpha blending blits are much faster, but the surface must be locked before directly accessing the pixels.

surface

the SDL_Surface structure to optimize.

enabled

true to enable RLE acceleration, false to disable it.

Returns true on success or false on failure; call SDL_GetError() for more information.

This function can be called on different threads with different surfaces.

This function is available since SDL 3.2.0.

SDL_BlitSurface(3), SDL_LockSurface(3), SDL_UnlockSurface(3)

SDL_SetSurfaceColorKey(3), SDL_SurfaceHasRLE(3).