v3d: support r{g,gba}16f formats for vertex buffers
These are supported, and in fact we are exposing them through Vulkan. Makes SuperTuxKart significantly faster in GL, I've observed an FPS increase from ~100% to ~500% depending on the track.
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These are supported, and in fact we are exposing them through Vulkan. Makes SuperTuxKart significantly faster in GL, I've observed an FPS increase from ~100% to ~500% depending on the track.