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/*
* Copyright (C) 2022 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.
*/
#ifndef HISTOGRAM_MEDIATOR_H_
#define HISTOGRAM_MEDIATOR_H_
#include <aidl/android/hardware/graphics/common/Rect.h>
#include <aidl/com/google/hardware/pixel/display/BnDisplay.h>
#include <aidl/com/google/hardware/pixel/display/HistogramErrorCode.h>
#include <aidl/com/google/hardware/pixel/display/HistogramPos.h>
#include <aidl/com/google/hardware/pixel/display/Priority.h>
#include <aidl/com/google/hardware/pixel/display/Weight.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <condition_variable>
#include <mutex>
#include <vector>
#define HWC2_INCLUDE_STRINGIFICATION
#define HWC2_USE_CPP11
#include <hardware/hwcomposer2.h>
#undef HWC2_INCLUDE_STRINGIFICATION
#undef HWC2_USE_CPP11
#include "ExynosDevice.h"
#include "ExynosDisplay.h"
#include "ExynosDisplayDrmInterfaceModule.h"
#include "ExynosDisplayInterface.h"
#include "ExynosLayer.h"
namespace histogram {
using RoiRect = ::aidl::android::hardware::graphics::common::Rect;
using Weight = ::aidl::com::google::hardware::pixel::display::Weight;
using HistogramPos = ::aidl::com::google::hardware::pixel::display::HistogramPos;
using Priority = ::aidl::com::google::hardware::pixel::display::Priority;
using HistogramErrorCode = ::aidl::com::google::hardware::pixel::display::HistogramErrorCode;
constexpr size_t HISTOGRAM_BINS_SIZE = 256;
constexpr size_t WEIGHT_SUM = 1024;
class HistogramMediator {
public:
HistogramMediator() = default;
HistogramMediator(ExynosDisplay *display);
~HistogramMediator() {}
bool isDisplayPowerOff();
bool isSecureContentPresenting();
HistogramErrorCode requestHist();
HistogramErrorCode cancelHistRequest();
HistogramErrorCode collectRoiLuma(std::vector<char16_t> *buf);
HistogramErrorCode setRoiWeightThreshold(const RoiRect &roi, const Weight &weight,
const HistogramPos &pos);
RoiRect calRoi(const RoiRect &roi);
struct HistogramReceiver : public IDLHistogram {
HistogramReceiver() : mHistData(){};
void callbackHistogram(char16_t *bin) override;
uint16_t mHistData[HISTOGRAM_BINS_SIZE]; // luma buffer
std::condition_variable mHistData_cv; // for pullback data sync ctrl
bool mHistReq_pending = false;
std::mutex mDataCollectingMutex; // for data collecting operations
};
uint32_t getFrameCount();
void setSampleFrameCounter(int32_t id) { mSampledFrameCounter = id; }
uint32_t getSampleFrameCounter() { return mSampledFrameCounter; }
bool histRequested() { return mIDLHistogram->mHistReq_pending; }
private:
int calculateThreshold(const RoiRect &roi);
std::shared_ptr<HistogramReceiver> mIDLHistogram;
ExynosDisplay *mDisplay = nullptr;
uint32_t mSampledFrameCounter = 0;
};
} // namespace histogram
#endif // HISTOGRAM_MEDIATOR_H_
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