Add plumbing for upcoming setFrameRate() api
Add plumbing from the app to surface flinger for the
ANativeWindow_setFrameRate() and ASurfaceTransaction_setFrameRate() api
calls we'll be adding soon.
We don't do anything in surface flinger with this data yet.
Bug: 143912624
Test: Added a new test, SetFrameRateTest.
Change-Id: I1cab87f3ce5afca4591a39d8e7a42cb1e86a368f
diff --git a/services/surfaceflinger/tests/SetFrameRate_test.cpp b/services/surfaceflinger/tests/SetFrameRate_test.cpp
new file mode 100644
index 0000000..4d1477c
--- /dev/null
+++ b/services/surfaceflinger/tests/SetFrameRate_test.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#include <system/window.h>
+
+#include <thread>
+
+#include "LayerTransactionTest.h"
+
+namespace android {
+
+class SetFrameRateTest : public LayerTransactionTest {
+protected:
+ void TearDown() {
+ mLayer = nullptr;
+ LayerTransactionTest::TearDown();
+ }
+
+ void CreateLayer(uint32_t layerType) {
+ ASSERT_EQ(nullptr, mLayer.get());
+ mLayerType = layerType;
+ ASSERT_NO_FATAL_FAILURE(mLayer = createLayer("TestLayer", mLayerWidth, mLayerHeight,
+ /*flags=*/mLayerType));
+ ASSERT_NE(nullptr, mLayer.get());
+ }
+
+ void PostBuffers(const Color& color) {
+ auto startTime = systemTime();
+ while (systemTime() - startTime < s2ns(1)) {
+ ASSERT_NO_FATAL_FAILURE(
+ fillLayerColor(mLayerType, mLayer, color, mLayerWidth, mLayerHeight));
+ std::this_thread::sleep_for(100ms);
+ }
+ }
+
+ const int mLayerWidth = 32;
+ const int mLayerHeight = 32;
+ sp<SurfaceControl> mLayer;
+ uint32_t mLayerType;
+};
+
+TEST_F(SetFrameRateTest, BufferQueueLayerSetFrameRate) {
+ CreateLayer(ISurfaceComposerClient::eFXSurfaceBufferQueue);
+ native_window_set_frame_rate(mLayer->getSurface().get(), 100.f);
+ ASSERT_NO_FATAL_FAILURE(PostBuffers(Color::RED));
+ Transaction().setFrameRate(mLayer, 200.f).apply();
+ ASSERT_NO_FATAL_FAILURE(PostBuffers(Color::RED));
+ native_window_set_frame_rate(mLayer->getSurface().get(), 300.f);
+ ASSERT_NO_FATAL_FAILURE(PostBuffers(Color::RED));
+}
+
+TEST_F(SetFrameRateTest, BufferStateLayerSetFrameRate) {
+ CreateLayer(ISurfaceComposerClient::eFXSurfaceBufferState);
+ Transaction().setFrameRate(mLayer, 400.f).apply();
+ ASSERT_NO_FATAL_FAILURE(PostBuffers(Color::GREEN));
+}
+
+} // namespace android