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>
diff --git a/i915.c b/i915.c
index b9a825a..08487ff 100644
--- a/i915.c
+++ b/i915.c
@@ -96,10 +96,11 @@
/*
* R8 format is used for Android's HAL_PIXEL_FORMAT_BLOB and is used for JPEG snapshots
- * from camera.
+ * from camera and input/output from hardware decoder/encoder.
*/
drv_modify_combination(drv, DRM_FORMAT_R8, &metadata,
- BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+ BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER |
+ BO_USE_HW_VIDEO_ENCODER);
render = unset_flags(render, linear_mask);
scanout_and_render = unset_flags(scanout_and_render, linear_mask);