hwc: Add target specific checks in hwcomposer
* Mdss driver supports DMA-Multiplexing on wb interface
for certain targets. Add overlay get function to query
this info during pipe allocation for wb.
* UI Scaling on external is not supported on certain
targets due to the lack of availability of pipes with
scalars. Add overlay get function to query this info
to disable action-safe calcs, DRC and others which
require downscaling.
Change-Id: I1726caa4634f72d781561e797078648524ea2eef
diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index 74e6da4..0374dec 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -192,7 +192,7 @@
(mDpy && !extOrient
&& !ctx->dpyAttr[mDpy].mDownScaleMode))
&& (extOnlyLayerIndex == -1)) {
- if(!qdutils::MDPVersion::getInstance().is8x26() &&
+ if(ctx->mOverlay->isUIScalingOnExternalSupported() &&
!ctx->dpyAttr[mDpy].customFBSize) {
getNonWormholeRegion(list, sourceCrop);
displayFrame = sourceCrop;