SDL_RenderReadPixels() needs to flush asynchronous operations before it reads. The semantics are that it reads the back buffer, and those pixels may not be available once SDL_RenderPresent() has happened.
SDL_RenderReadPixels() needs to flush asynchronous operations before it reads.
The semantics are that it reads the back buffer, and those pixels may not be available once SDL_RenderPresent() has happened.


git-svn-id: 75429ccc2030f235ccf16e6b9b7f8e83d5edd22e@5291 c70aab31-4412-0410-b14c-859654838e24

albertz/sdl,albertz/sdl,albertz/sdl,albertz/sdl