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5a578a0783
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().
Simple DirectMedia Layer
(SDL)
Version 2.0
---
http://www.libsdl.org/
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)