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75 lines
1.9 KiB
75 lines
1.9 KiB
/*
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* Copyright (C) 2015 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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#ifndef ANDROID_EVENT_WORKER_H_
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#define ANDROID_EVENT_WORKER_H_
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#include <hardware/hardware.h>
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#include <hardware/hwcomposer.h>
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#include <hardware/hwcomposer2.h>
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#include <stdint.h>
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#include <map>
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#include "DrmDevice.h"
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#include "utils/Worker.h"
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namespace android {
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class VsyncCallback {
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public:
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virtual ~VsyncCallback() {
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}
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virtual void Callback(int display, int64_t timestamp) = 0;
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};
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class VSyncWorker : public Worker {
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public:
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VSyncWorker();
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~VSyncWorker() override;
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int Init(DrmDevice *drm, int display);
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void RegisterCallback(std::shared_ptr<VsyncCallback> callback);
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void RegisterClientCallback(hwc2_callback_data_t data,
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hwc2_function_pointer_t hook);
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void VSyncControl(bool enabled);
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protected:
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void Routine() override;
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private:
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int64_t GetPhasedVSync(int64_t frame_ns, int64_t current);
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int SyntheticWaitVBlank(int64_t *timestamp);
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DrmDevice *drm_;
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// shared_ptr since we need to use this outside of the thread lock (to
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// actually call the hook) and we don't want the memory freed until we're
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// done
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std::shared_ptr<VsyncCallback> callback_ = NULL;
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int display_;
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std::atomic_bool enabled_;
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int64_t last_timestamp_;
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hwc2_callback_data_t vsync_callback_data_ = NULL;
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HWC2_PFN_VSYNC vsync_callback_hook_ = NULL;
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};
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} // namespace android
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#endif
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