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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.
*/
#include <thread>
#include <gtest/gtest.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
static constexpr int kRefreshRateOverlayCode = 1034;
static constexpr int kRefreshRateOverlayEnable = 1;
static constexpr int kRefreshRateOverlayDisable = 0;
static constexpr int kRefreshRateOverlayQuery = 2;
// These values must match the ones we used for developer options in
// com.android.settings.development.ShowRefreshRatePreferenceController
static_assert(kRefreshRateOverlayCode == 1034);
static_assert(kRefreshRateOverlayEnable == 1);
static_assert(kRefreshRateOverlayDisable == 0);
static_assert(kRefreshRateOverlayQuery == 2);
namespace android {
namespace {
void sendCommandToSf(int command, Parcel& reply) {
sp<ISurfaceComposer> sf(ComposerService::getComposerService());
Parcel request;
request.writeInterfaceToken(String16("android.ui.ISurfaceComposer"));
request.writeInt32(command);
ASSERT_EQ(NO_ERROR,
IInterface::asBinder(sf)->transact(kRefreshRateOverlayCode, request, &reply));
}
bool isOverlayEnabled() {
Parcel reply;
sendCommandToSf(kRefreshRateOverlayQuery, reply);
return reply.readBool();
}
void waitForOverlay(bool enabled) {
static constexpr auto kTimeout = std::chrono::nanoseconds(1s);
static constexpr auto kIterations = 10;
for (int i = 0; i < kIterations; i++) {
if (enabled == isOverlayEnabled()) {
return;
}
std::this_thread::sleep_for(kTimeout / kIterations);
}
}
void toggleOverlay(bool enabled) {
if (enabled == isOverlayEnabled()) {
return;
}
Parcel reply;
const auto command = enabled ? kRefreshRateOverlayEnable : kRefreshRateOverlayDisable;
sendCommandToSf(command, reply);
waitForOverlay(enabled);
ASSERT_EQ(enabled, isOverlayEnabled());
}
} // namespace
TEST(RefreshRateOverlayTest, enableOverlay) {
toggleOverlay(true);
}
TEST(RefreshRateOverlayTest, disableOverlay) {
toggleOverlay(false);
}
TEST(RefreshRateOverlayTest, enableAndDisableOverlay) {
toggleOverlay(true);
toggleOverlay(false);
toggleOverlay(true);
toggleOverlay(false);
}
} // namespace android
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