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fixed issue #9: maintain guest OS' aspect ratio, when in fullscreen

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This commit is contained in:
David Ludwig 2017-08-14 14:26:54 -04:00
parent 80a30aeca1
commit 0e5ce49f46
1 changed files with 14 additions and 0 deletions
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14
BasiliskII/src/SDL/video_sdl.cpp
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@ -792,6 +792,13 @@ static SDL_Surface * init_sdl_video(int width, int height, int bpp, Uint32 flags
}
}
if (SDL_RenderSetLogicalSize(sdl_renderer, width, height) != 0) {
printf("ERROR: Unable to set SDL rendeer's logical size (to %dx%d): %s\n",
width, height, SDL_GetError());
shutdown_sdl_video();
return NULL;
}
return guest_surface;
}
@ -802,6 +809,13 @@ static int update_sdl_video()
return -1;
}
// Make sure the display's internal (to SDL, possibly the OS) buffer gets
// cleared. Not doing so can, if and when letterboxing is applied (whereby
// colored bars are drawn on the screen's sides to help with aspect-ratio
// correction), the colored bars can be an unknown color.
SDL_SetRenderDrawColor(sdl_renderer, 0, 0, 0, 0); // Use black
SDL_RenderClear(sdl_renderer); // Clear the display
if (host_surface != guest_surface &&
host_surface != NULL &&
guest_surface != NULL)