dx11: naomi2 support
n2: ambient color was swapping red and blue
gl, dx11: don't write depth in per-strip to avoid missing geometry,
prefer wrong depth order/blending for now
optimize naomi2 per-triangle sorting
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