dx11: shadow scale factor inverted in per-pixel
vulkan: clear deleted overlay images when terminating
Use color struct for FOG_COL_VERT, FOG_COL_RAM, FOG_CLAMP_MIN,
FOG_CLAMP_MAX and VO_BORDER_COL. Avoid code duplication in renderers.
oit: skip to new frame even if previous frame was never presented
libretro: quad pipeline used for overlay must use subpass 2 in per-pixel
overlay: delay destruction of VMUs images
libretro: WaitIdle on queue instead of wait_sync_index
Flyinghead