SDL_ConvertSurface
Use this function to copy an existing surface into a new one that is optimized for blitting to a surface of a specified pixel format.
Syntax
SDL_Surface* SDL_ConvertSurface(SDL_Surface* src,
SDL_PixelFormat* fmt,
Uint32 flags)
Function Parameters
src |
the existing SDL_Surface structure to convert |
fmt |
the SDL_PixelFormat structure that the new surface is optimized for |
flags |
the flags are unused and should be set to 0 |
Return Value
Returns the new SDL_Surface structure that is created or NULL if it fails; call SDL_GetError() for more information.
Code Examples
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Remarks
This function is used to optimize images for faster repeat blitting. This is accomplished by converting the original and storing the result as a new surface. The new, optimized surface can then be used as the source for future blits, making them faster.