libretro: Null first frame erroneously set as valid causing a crash with dx11 (single-threaded rendering)
libretro: pass dx11 compiler pointer to shaders
dx11: use feature level to check if per-pixel is supported
dx11: use 32-bit float depth texture to avoid loss of precision (SA2 into logo)
dx11: cache shader blobs to disk if not provided by OS
dx11: swap interval depends on screen refresh rate (1 for 60 Hz, 2 for 120 Hz, ...)
dx9: use clipping planes to avoid interpolation errors in rasterizer (daytona, mermaid lake)
directsound: use comptr
gui: fix navigation issue with OptionArrowButtons due to missing id
Flyinghead