hwc: Disable MDPComp for external UI layers if scaling is present.
Fallback to GPU composition for the external UI layers if Actionsafe
or WFD/HDMI downscale mode is enabled that requires scaling.
Change-Id: Ie03da35e1c2e78434de00f92ad6c2e5073fc33b8
diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index 0b4cbe0..9221b71 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -541,6 +541,13 @@
return false;
}
+ // check for action safe flag and downscale mode which requires scaling.
+ if(ctx->dpyAttr[mDpy].mActionSafePresent
+ || ctx->dpyAttr[mDpy].mDownScaleMode) {
+ ALOGD_IF(isDebug(), "%s: Scaling needed for this frame",__FUNCTION__);
+ return false;
+ }
+
for(int i = 0; i < numAppLayers; ++i) {
hwc_layer_1_t* layer = &list->hwLayers[i];
private_handle_t *hnd = (private_handle_t *)layer->handle;