zink: missing vertex formats
I don't know if it'll be useful, but this is the list of vertex buffer formats which (currently) have no equivalent in vkformat and must be handled by vbuf:
PIPE_FORMAT_R32_FIXED
PIPE_FORMAT_R32G32_FIXED
PIPE_FORMAT_R32G32B32_FIXED
PIPE_FORMAT_R32G32B32A32_FIXED
PIPE_FORMAT_R32_UNORM
PIPE_FORMAT_R32G32_UNORM
PIPE_FORMAT_R32G32B32_UNORM
PIPE_FORMAT_R32G32B32A32_UNORM
PIPE_FORMAT_R32_SNORM
PIPE_FORMAT_R32G32_SNORM
PIPE_FORMAT_R32G32B32_SNORM
PIPE_FORMAT_R32G32B32A32_SNORM
PIPE_FORMAT_R32_USCALED
PIPE_FORMAT_R32G32_USCALED
PIPE_FORMAT_R32G32B32_USCALED
PIPE_FORMAT_R32G32B32A32_USCALED
PIPE_FORMAT_R32_SSCALED
PIPE_FORMAT_R32G32_SSCALED
PIPE_FORMAT_R32G32B32_SSCALED
PIPE_FORMAT_R32G32B32A32_SSCALED
It may be worthwhile to add cs translations if apps are found which rely on them.