move ui loop out of hw/pvr
vk: implement multi-rendering, delay swap. Load fb before render pass
fps counter now counts frames, not renders
vk: force ignoreTexAlpha for 565 texture in case the supporting texture
has an alpha channel (RTT). Fixes Alone in the Dark cinematic scenes.
pvr: better detection of frame swapping (FB_R_SOF/FB_W_SOF)
pvr: synchronous rendering now always waits for render in progress
(speed measurement not reliable, render skipped when multi-rendering)
vk: limit swap chain size to 2
Linear tiling is faster for small, frequently updated textures
When lots of textures are updated each frame, a skipped frame will
destroy/recreate all textures, causing another skipped frame, etc. So
in-flight texture tracking is disabled, except for RTT textures
Limit swap chain to 2 images
Refactor base and oit renderers to avoid code dup
Keep in-use imave and image views when the texture is updated.
Fix inside clipping (18 wheeler rear mirror)
Wait until the graphics queue is idle before changing shared buffers and
attachments.
Refactoring
Flyinghead