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Some graphics cards return a too small overlay when the size is larger than 1024. Fall back in that case.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4315
This commit is contained in:
Peter Veenstra 2020-02-07 14:25:52 +00:00
parent 987a48600d
commit eb9b86269d
1 changed files with 13 additions and 5 deletions
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18
src/gui/sdlmain.cpp
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@ -720,16 +720,24 @@ dosurface:
case SCREEN_OVERLAY:
if (sdl.overlay) {
SDL_FreeYUVOverlay(sdl.overlay);
sdl.overlay=0;
sdl.overlay = 0;
}
if (!(flags&GFX_CAN_32) || (flags & GFX_RGBONLY)) goto dosurface;
if (!(flags & GFX_CAN_32) || (flags & GFX_RGBONLY)) goto dosurface;
if (!GFX_SetupSurfaceScaled(0,0)) goto dosurface;
sdl.overlay=SDL_CreateYUVOverlay(width*2,height,SDL_UYVY_OVERLAY,sdl.surface);
sdl.overlay = SDL_CreateYUVOverlay(width * 2, height, SDL_UYVY_OVERLAY, sdl.surface);
if (sdl.overlay && sdl.overlay->pitches[0] < 4 * width) {
// We get a distorted image in this case. Cleanup and go to surface.
LOG_MSG("SDL: overlay pitch is too small. (%u < %u)", sdl.overlay->pitches[0], width * 4);
SDL_FreeYUVOverlay(sdl.overlay);
sdl.overlay = 0;
}
if (!sdl.overlay) {
LOG_MSG("SDL: Failed to create overlay, switching back to surface");
LOG_MSG("SDL: Failed to create overlay, switching back to surface.");
goto dosurface;
}
sdl.desktop.type=SCREEN_OVERLAY;
sdl.desktop.type = SCREEN_OVERLAY;
retFlags = GFX_CAN_32 | GFX_SCALING | GFX_HARDWARE;
break;
#if C_OPENGL