egl: Avoid use of retire as present
Retire fences from HWC1 are implemented inconsitently,
so present emulation doesn't always work well.
This patch disables present for all HWC1 based devices.
Test: adb shell /data/nativetest/libgui_test/libgui_test
--gtest_filter=*GetFrameTimestamps*
Bug: 36730849, 36887025
Change-Id: I1eba2f8490c2f6feced2a36d1efc4cd66be7da40
diff --git a/libs/hwc2on1adapter/HWC2On1Adapter.cpp b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
index e35bfc9..8c6ef69 100644
--- a/libs/hwc2on1adapter/HWC2On1Adapter.cpp
+++ b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
@@ -2246,6 +2246,11 @@
mHwc1SupportsBackgroundColor = true;
}
}
+
+ // Some devices might have HWC1 retire fences that accurately emulate
+ // HWC2 present fences when they are deferred, but it's not very reliable.
+ // To be safe, we indicate PresentFenceIsNotReliable for all HWC1 devices.
+ mCapabilities.insert(Capability::PresentFenceIsNotReliable);
}
HWC2On1Adapter::Display* HWC2On1Adapter::getDisplay(hwc2_display_t id) {