drm_hwcomposer: Add z order support
Currently, the planner just pops the first available drm plane and if
that can't be used for the DrmHwcLayer it just returns error.
This proposes a slighlty smarter way to do that by trying to see if
any of the DrmPlane can be used for the DrmHwcLayer in question.
More, if the drm_plane doesn't have a fix zorder then we could re-add
him to the list of unused planes, so it could be used for hosting
other less demanding DrmHwcLayers.
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
diff --git a/drmproperty.cpp b/drmproperty.cpp
index dcab05e..9faa37e 100644
--- a/drmproperty.cpp
+++ b/drmproperty.cpp
@@ -100,6 +100,10 @@
}
}
+bool DrmProperty::immutable() const {
+ return id_ && (flags_ & DRM_MODE_PROP_IMMUTABLE);
+}
+
std::tuple<uint64_t, int> DrmProperty::GetEnumValueWithName(
std::string name) const {
for (auto it : enums_) {