Respect buffer rotation in OutputLayer's filtering test

Otherwise GPU composition quality is degraded for:
* Non-prerotated layers
* Screenshots captured from devices with rotated panels

The second issue in particular is problematic for CTS.

Bug: 283075427
Test: SurfaceViewTests with a 90 degree panel installation
Test: libcompositionengine_test
Change-Id: I6dd7f0f385d7df0463a560d97c1ca5ee89998405
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
index 9039d16..630906a 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
@@ -1614,5 +1614,20 @@
     EXPECT_TRUE(mOutputLayer.needsFiltering());
 }
 
+TEST_F(OutputLayerTest, needsFilteringReturnsFalseIfRotatedDisplaySizeSameAsSourceSize) {
+    mOutputLayer.editState().displayFrame = Rect(100, 100, 300, 200);
+    mOutputLayer.editState().sourceCrop = FloatRect{0.f, 0.f, 100.f, 200.f};
+    mOutputLayer.editState().bufferTransform = Hwc2::Transform::ROT_90;
+
+    EXPECT_FALSE(mOutputLayer.needsFiltering());
+}
+
+TEST_F(OutputLayerTest, needsFilteringReturnsTrueIfRotatedDisplaySizeDiffersFromSourceSize) {
+    mOutputLayer.editState().displayFrame = Rect(100, 100, 300, 200);
+    mOutputLayer.editState().sourceCrop = FloatRect{0.f, 0.f, 100.f, 200.f};
+
+    EXPECT_TRUE(mOutputLayer.needsFiltering());
+}
+
 } // namespace
 } // namespace android::compositionengine