minigbm: add encoder/decoder blob combination
ARCVM sets encoder/decoder usage on the blob output/input buffers, so
that virtio_gpu knows to perform transfers from/to the host where
appropriate. Recently, virtio_gpu started passing all bind flags to the
host, instead of reducing them in the guest. These factors combined
means that the host backends now need to support encoder/decoder usage
with R8 format.
Test: manually verify ARCVM YouTube
Bug: b:158957350
Change-Id: I58bf657496647f8002c693d17a1186f4cf527b01
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2245540
Tested-by: David Stevens <stevensd@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: David Stevens <stevensd@chromium.org>
5 files changed
