diff options
Diffstat (limited to 'arch/sandbox')
| -rw-r--r-- | arch/sandbox/cpu/sdl.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/sandbox/cpu/sdl.c b/arch/sandbox/cpu/sdl.c index 8102649be3..e264949481 100644 --- a/arch/sandbox/cpu/sdl.c +++ b/arch/sandbox/cpu/sdl.c @@ -164,8 +164,29 @@ int sandbox_sdl_init_display(int width, int height, int log2_bpp, int sandbox_sdl_sync(void *lcd_base) { + struct SDL_Rect rect; + int ret; + + if (!sdl.texture) + return 0; + SDL_RenderClear(sdl.renderer); SDL_UpdateTexture(sdl.texture, NULL, lcd_base, sdl.pitch); - SDL_RenderCopy(sdl.renderer, sdl.texture, NULL, NULL); + ret = SDL_RenderCopy(sdl.renderer, sdl.texture, NULL, NULL); + if (ret) { + printf("SDL copy %d: %s\n", ret, SDL_GetError()); + return -EIO; + } + + /* + * On some machines this does not appear. Draw an empty rectangle which + * seems to fix that. + */ + rect.x = 0; + rect.y = 0; + rect.w = 0; + rect.h = 0; + SDL_RenderDrawRect(sdl.renderer, &rect); + SDL_RenderPresent(sdl.renderer); sandbox_sdl_poll_events(); |