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diff --git a/services/surfaceflinger/tests/unittests/DisplayDevice_SetProjectionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayDevice_SetProjectionTest.cpp
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+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "LibSurfaceFlingerUnittests"
+
+#include "DisplayTransactionTestHelpers.h"
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+namespace android {
+namespace {
+
+using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
+
+class DisplayDeviceSetProjectionTest : public DisplayTransactionTest {
+public:
+ static constexpr int32_t DEFAULT_DISPLAY_WIDTH = 1080; // arbitrary
+ static constexpr int32_t DEFAULT_DISPLAY_HEIGHT = 1920; // arbitrary
+
+ static constexpr int32_t TRANSFORM_FLAGS_ROT_0 = 0;
+ static constexpr int32_t TRANSFORM_FLAGS_ROT_90 = HAL_TRANSFORM_ROT_90;
+ static constexpr int32_t TRANSFORM_FLAGS_ROT_180 = HAL_TRANSFORM_FLIP_H | HAL_TRANSFORM_FLIP_V;
+ static constexpr int32_t TRANSFORM_FLAGS_ROT_270 =
+ HAL_TRANSFORM_FLIP_H | HAL_TRANSFORM_FLIP_V | HAL_TRANSFORM_ROT_90;
+
+ DisplayDeviceSetProjectionTest(ui::Size flingerDisplaySize, ui::Size hardwareDisplaySize,
+ ui::Rotation physicalOrientation)
+ : mFlingerDisplaySize(flingerDisplaySize),
+ mHardwareDisplaySize(hardwareDisplaySize),
+ mPhysicalOrientation(physicalOrientation),
+ mDisplayDevice(createDisplayDevice()) {}
+
+ sp<DisplayDevice> createDisplayDevice() {
+ return injectDefaultInternalDisplay([this](FakeDisplayDeviceInjector& injector) {
+ injector.setPhysicalOrientation(mPhysicalOrientation);
+ });
+ }
+
+ ui::Size swapWH(const ui::Size size) const { return ui::Size(size.height, size.width); }
+
+ void setProjectionForRotation0() {
+ // A logical rotation of 0 uses the SurfaceFlinger display size
+ mDisplayDevice->setProjection(ui::ROTATION_0, Rect(mFlingerDisplaySize),
+ Rect(mFlingerDisplaySize));
+ }
+
+ void setProjectionForRotation90() {
+ // A logical rotation of 90 uses the SurfaceFlinger display size with
+ // the width/height swapped.
+ mDisplayDevice->setProjection(ui::ROTATION_90, Rect(swapWH(mFlingerDisplaySize)),
+ Rect(swapWH(mFlingerDisplaySize)));
+ }
+
+ void setProjectionForRotation180() {
+ // A logical rotation of 180 uses the SurfaceFlinger display size
+ mDisplayDevice->setProjection(ui::ROTATION_180, Rect(mFlingerDisplaySize),
+ Rect(mFlingerDisplaySize));
+ }
+
+ void setProjectionForRotation270() {
+ // A logical rotation of 270 uses the SurfaceFlinger display size with
+ // the width/height swapped.
+ mDisplayDevice->setProjection(ui::ROTATION_270, Rect(swapWH(mFlingerDisplaySize)),
+ Rect(swapWH(mFlingerDisplaySize)));
+ }
+
+ void expectStateForHardwareTransform0() {
+ const auto& compositionState = mDisplayDevice->getCompositionDisplay()->getState();
+ EXPECT_EQ(ui::Transform(TRANSFORM_FLAGS_ROT_0, mHardwareDisplaySize.width,
+ mHardwareDisplaySize.height),
+ compositionState.transform);
+ EXPECT_EQ(ui::ROTATION_0, compositionState.displaySpace.orientation);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.displaySpace.content);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.orientedDisplaySpace.content);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.layerStackSpace.content);
+ EXPECT_EQ(false, compositionState.needsFiltering);
+ }
+
+ void expectStateForHardwareTransform90() {
+ const auto& compositionState = mDisplayDevice->getCompositionDisplay()->getState();
+ EXPECT_EQ(ui::Transform(TRANSFORM_FLAGS_ROT_90, mHardwareDisplaySize.width,
+ mHardwareDisplaySize.height),
+ compositionState.transform);
+ EXPECT_EQ(ui::ROTATION_90, compositionState.displaySpace.orientation);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.displaySpace.content);
+ // For 90, the orientedDisplaySpaceRect and layerStackSpaceRect have the hardware display
+ // size width and height swapped
+ EXPECT_EQ(Rect(swapWH(mHardwareDisplaySize)),
+ compositionState.orientedDisplaySpace.content);
+ EXPECT_EQ(Rect(swapWH(mHardwareDisplaySize)), compositionState.layerStackSpace.content);
+ EXPECT_EQ(false, compositionState.needsFiltering);
+ }
+
+ void expectStateForHardwareTransform180() {
+ const auto& compositionState = mDisplayDevice->getCompositionDisplay()->getState();
+ EXPECT_EQ(ui::Transform(TRANSFORM_FLAGS_ROT_180, mHardwareDisplaySize.width,
+ mHardwareDisplaySize.height),
+ compositionState.transform);
+ EXPECT_EQ(ui::ROTATION_180, compositionState.displaySpace.orientation);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.orientedDisplaySpace.content);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.layerStackSpace.content);
+ EXPECT_EQ(false, compositionState.needsFiltering);
+ }
+
+ void expectStateForHardwareTransform270() {
+ const auto& compositionState = mDisplayDevice->getCompositionDisplay()->getState();
+ EXPECT_EQ(ui::Transform(TRANSFORM_FLAGS_ROT_270, mHardwareDisplaySize.width,
+ mHardwareDisplaySize.height),
+ compositionState.transform);
+ EXPECT_EQ(ui::ROTATION_270, compositionState.displaySpace.orientation);
+ EXPECT_EQ(Rect(mHardwareDisplaySize), compositionState.displaySpace.content);
+ // For 270, the orientedDisplaySpaceRect and layerStackSpaceRect have the hardware display
+ // size width and height swapped
+ EXPECT_EQ(Rect(swapWH(mHardwareDisplaySize)),
+ compositionState.orientedDisplaySpace.content);
+ EXPECT_EQ(Rect(swapWH(mHardwareDisplaySize)), compositionState.layerStackSpace.content);
+ EXPECT_EQ(false, compositionState.needsFiltering);
+ }
+
+ const ui::Size mFlingerDisplaySize;
+ const ui::Size mHardwareDisplaySize;
+ const ui::Rotation mPhysicalOrientation;
+ const sp<DisplayDevice> mDisplayDevice;
+};
+
+struct DisplayDeviceSetProjectionTest_Installed0 : public DisplayDeviceSetProjectionTest {
+ DisplayDeviceSetProjectionTest_Installed0()
+ : DisplayDeviceSetProjectionTest(ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::ROTATION_0) {}
+};
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed0, checkWith0OutputRotation) {
+ setProjectionForRotation0();
+ expectStateForHardwareTransform0();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed0, checkWith90OutputRotation) {
+ setProjectionForRotation90();
+ expectStateForHardwareTransform90();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed0, checkWith180OutputRotation) {
+ setProjectionForRotation180();
+ expectStateForHardwareTransform180();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed0, checkWith270OutputRotation) {
+ setProjectionForRotation270();
+ expectStateForHardwareTransform270();
+}
+
+struct DisplayDeviceSetProjectionTest_Installed90 : public DisplayDeviceSetProjectionTest {
+ DisplayDeviceSetProjectionTest_Installed90()
+ : DisplayDeviceSetProjectionTest(ui::Size(DEFAULT_DISPLAY_HEIGHT, DEFAULT_DISPLAY_WIDTH),
+ ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::ROTATION_90) {}
+};
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed90, checkWith0OutputRotation) {
+ setProjectionForRotation0();
+ expectStateForHardwareTransform90();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed90, checkWith90OutputRotation) {
+ setProjectionForRotation90();
+ expectStateForHardwareTransform180();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed90, checkWith180OutputRotation) {
+ setProjectionForRotation180();
+ expectStateForHardwareTransform270();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed90, checkWith270OutputRotation) {
+ setProjectionForRotation270();
+ expectStateForHardwareTransform0();
+}
+
+struct DisplayDeviceSetProjectionTest_Installed180 : public DisplayDeviceSetProjectionTest {
+ DisplayDeviceSetProjectionTest_Installed180()
+ : DisplayDeviceSetProjectionTest(ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::ROTATION_180) {}
+};
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed180, checkWith0OutputRotation) {
+ setProjectionForRotation0();
+ expectStateForHardwareTransform180();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed180, checkWith90OutputRotation) {
+ setProjectionForRotation90();
+ expectStateForHardwareTransform270();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed180, checkWith180OutputRotation) {
+ setProjectionForRotation180();
+ expectStateForHardwareTransform0();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed180, checkWith270OutputRotation) {
+ setProjectionForRotation270();
+ expectStateForHardwareTransform90();
+}
+
+struct DisplayDeviceSetProjectionTest_Installed270 : public DisplayDeviceSetProjectionTest {
+ DisplayDeviceSetProjectionTest_Installed270()
+ : DisplayDeviceSetProjectionTest(ui::Size(DEFAULT_DISPLAY_HEIGHT, DEFAULT_DISPLAY_WIDTH),
+ ui::Size(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
+ ui::ROTATION_270) {}
+};
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed270, checkWith0OutputRotation) {
+ setProjectionForRotation0();
+ expectStateForHardwareTransform270();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed270, checkWith90OutputRotation) {
+ setProjectionForRotation90();
+ expectStateForHardwareTransform0();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed270, checkWith180OutputRotation) {
+ setProjectionForRotation180();
+ expectStateForHardwareTransform90();
+}
+
+TEST_F(DisplayDeviceSetProjectionTest_Installed270, checkWith270OutputRotation) {
+ setProjectionForRotation270();
+ expectStateForHardwareTransform180();
+}
+
+} // namespace
+} // namespace android