70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <jni.h>
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#include <condition_variable>
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#include <functional>
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#include <map>
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#include <memory>
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#include <mutex>
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namespace swappy {
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struct SdkVersion {
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int sdkInt; // Build.VERSION.SDK_INT
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int previewSdkInt; // Build.VERSION.PREVIEW_SDK_INT
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};
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class SwappyDisplayManager {
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public:
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static const char* SDM_CLASS;
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static const JNINativeMethod SDMNativeMethods[];
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static constexpr int SDMNativeMethodsSize = 2;
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static constexpr int MIN_SDK_VERSION = 28;
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static bool useSwappyDisplayManager(SdkVersion sdkVersion);
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static bool usesMinSdkOrLater(SdkVersion sdkVersion);
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SwappyDisplayManager(JavaVM*, jobject mainActivity);
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~SwappyDisplayManager();
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bool isInitialized() { return mInitialized; }
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// Map from refresh period to display mode id
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using RefreshPeriodMap = std::map<std::chrono::nanoseconds, int>;
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std::shared_ptr<RefreshPeriodMap> getSupportedRefreshPeriods();
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void setPreferredDisplayModeId(int index);
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private:
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JavaVM* mJVM;
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std::mutex mMutex;
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std::condition_variable mCondition;
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std::shared_ptr<RefreshPeriodMap> mSupportedRefreshPeriods;
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jobject mJthis = nullptr;
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jmethodID mSetPreferredDisplayModeId = nullptr;
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jmethodID mTerminate = nullptr;
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bool mInitialized = false;
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friend class SwappyDisplayManagerJNI;
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};
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} // namespace swappy
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