kc3-lang/SDL

2015-04-16T22:04:35

Fixed return value of SDL_SaveBMP_RW() depending on set errors after NULL input. If SDL_SaveBMP_RW() was called with NULL passed as SDL_RWops argument, different values were returned depending on SDL_GetError(). If no error was set before the call (or SDL_ClearError() was called) then 0 was returned. This is wrong because nothing was saved. If an error was set before the call then -1 was returned. This was fixed by directly returning -1 for NULL input instead of deciding based on SDL_GetError(). No new error is set because this would otherwise override a maybe more useful error set in SDL_RWFromFile() which is used by SDL_SaveBMP().