diff options
Diffstat (limited to 'tests/sdl_free_screen.cpp')
-rw-r--r-- | tests/sdl_free_screen.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/sdl_free_screen.cpp b/tests/sdl_free_screen.cpp new file mode 100644 index 00000000..01a849c5 --- /dev/null +++ b/tests/sdl_free_screen.cpp @@ -0,0 +1,29 @@ +#include <stdio.h> +#include <SDL/SDL.h> + + +extern "C" int main(int argc, char** argv) { + + SDL_Init(SDL_INIT_VIDEO); + SDL_Surface *screen = SDL_SetVideoMode(256, 256, 32, SDL_SWSURFACE); + printf("freeing screen...\n"); + SDL_FreeSurface(screen); + printf("recreating...\n"); + screen = SDL_SetVideoMode(256, 256, 32, SDL_SWSURFACE); + printf("seems ok!\n"); + + if (SDL_MUSTLOCK(screen)) SDL_LockSurface(screen); + for (int i = 0; i < 256; i++) { + for (int j = 0; j < 256; j++) { + // alpha component is actually ignored, since this is to the screen + *((Uint32*)screen->pixels + i * 256 + j) = SDL_MapRGBA(screen->format, i, j, 255-i, (i+j) % 255); + } + } + if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen); + SDL_Flip(screen); + + SDL_Quit(); + + return 0; +} + |