linux-dmabuf: support passing buffer DTRC meta to compositor
DTRC meta is untilized to pass offset to DTRC in drm dcss driver
to enable video tile compress
Signed-off-by: Haihua Hu <jared.hu@nxp.com>
diff --git a/unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml b/unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml
index 154afe2..9c955c7 100644
--- a/unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml
+++ b/unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml
@@ -343,6 +343,28 @@
<arg name="flags" type="uint" summary="see enum flags"/>
</request>
+ <request name="add_dtrc_meta">
+ <description summary="add dtrc meta in this dmabuf">
+ This request adds one dmabuf to the set in this
+ zwp_linux_buffer_params_v1.
+
+ The 64-bit unsigned value combined from modifier_hi and modifier_lo
+ is the dmabuf layout modifier. DRM AddFB2 ioctl calls this the
+ fb modifier, which is defined in drm_mode.h of Linux UAPI.
+ This is an opaque token. Drivers use this token to express tiling,
+ compression, etc. driver-specific modifications to the base format
+ defined by the DRM fourcc code.
+
+ This request raises the PLANE_IDX error if plane_idx is too large.
+ The error PLANE_SET is raised if attempting to set a plane that
+ was already set.
+ </description>
+ <arg name="rfc_chroma_offset" type="uint"
+ summary="high 32 bits of DTRC offset"/>
+ <arg name="rfc_luma_offset" type="uint"
+ summary="low 32 bits of DTRC offset"/>
+ </request>
+
</interface>
</protocol>
