/* Copyright Statement:
 *
 * This software/firmware and related documentation ("MediaTek Software") are
 * protected under relevant copyright laws. The information contained herein is
 * confidential and proprietary to MediaTek Inc. and/or its licensors. Without
 * the prior written permission of MediaTek inc. and/or its licensors, any
 * reproduction, modification, use or disclosure of MediaTek Software, and
 * information contained herein, in whole or in part, shall be strictly
 * prohibited.
 *
 * MediaTek Inc. (C) 2022. All rights reserved.
 *
 * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
 * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
 * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
 * ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL
 * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH
 * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY,
 * INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES
 * TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO.
 * RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO
 * OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MEDIATEK
 * SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE
 * RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
 * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S
 * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE
 * RELEASED HEREUNDER WILL BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE
 * MEDIATEK SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE
 * CHARGE PAID BY RECEIVER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
 *
 * The following software/firmware and/or related documentation ("MediaTek
 * Software") have been modified by MediaTek Inc. All revisions are subject to
 * any receiver's applicable license agreements with MediaTek Inc.
 */

#pragma once

#include <android-base/stringprintf.h>
#include <vector>
#include <utils/Mutex.h>
#include "Scheduler/VsyncModulator.h"

#define MTK_DURATION_PREFIX "vendor.debug.sf.dynamic_duration."
#define MTK_DURATION_SF_EARLY MTK_DURATION_PREFIX "sf.early."
#define MTK_DURATION_APP_EARLY MTK_DURATION_PREFIX "app.early."
#define MTK_DURATION_SF_EARLYGL MTK_DURATION_PREFIX "sf.earlyGl."
#define MTK_DURATION_APP_EARLYGL MTK_DURATION_PREFIX "app.earlyGl."
#define MTK_DURATION_SF_LATE MTK_DURATION_PREFIX "sf.late."
#define MTK_DURATION_APP_LATE MTK_DURATION_PREFIX "app.late."
#define MTK_DURATION_SF_DECOUPLE MTK_DURATION_PREFIX "sf.decouple"
#define MTK_DURATION_APP_DECOUPLE MTK_DURATION_PREFIX "app.decouple"

namespace android {
// ---------------------------------------------------------------------------
class MtkDuration
{
private:
    MtkDuration();

    const int DurationType_Unset = 0x0;
    const int DurationType_Decouple = 1;
    const int DurationType_Override = 1<<1;

    scheduler::VsyncConfig mDecoupleDuration;
    scheduler::VsyncConfig mOverrideDuration;

    const nsecs_t DEFAULT_MIN_VSYNC = 16666667;
    const nsecs_t DEFAULT_MAX_VSYNC = 8333333;

    int mType;
    std::mutex mTypeMutex;
    nsecs_t mVsyncPeriod;
    bool mIsExtraVsyncSupported;
    struct ExtraVsyncRequest {
        uint64_t disp_id;
        uint32_t count;
        ExtraVsyncRequest(uint64_t d, uint32_t c) {
            disp_id = d;
            count = c;
        }
    };
    std::vector<ExtraVsyncRequest> mRequestedExtraVsyncCounts;
    std::mutex mExtraVsyncMutex;
    bool mIsClientComposition;

    void updateDurations();
    void updateDurationOffset(scheduler::VsyncConfig&);

    // Decouple mode - START
    static const nsecs_t MIN_TRANSACTION_FRAMES = 5;
    uint64_t mActiveDisplayId;
    struct DisplayMML{
        uint64_t displayId;
        bool decoupleMode;
        int transactionFrames;
        bool transactionMode;
        DisplayMML(uint64_t dId, bool dMode, int tF, bool tM) {
            displayId = dId;
            decoupleMode = dMode;
            transactionFrames = tF;
            transactionMode = tM;
        }
    };
    // we use an array to keep multiple display state.
    static const size_t INVALID_ACTIVE_DISPLAY_INDEX = 999;
    size_t mActiveDisplayIndex;
    std::vector<DisplayMML> mDispMML;

    bool mDecoupleModeSwitch;
    bool mDrawingDecoupleMode;
    std::mutex mDecoupleModeMutex;

    bool duringTransaction(size_t i);
    void decreTransactionFrames();
    bool getDecoupleModeLocked(size_t i);
    size_t getActiveDisplayIndex();
    bool isDecoupleModeChange();
    bool isDecoupleModeAvailable();
    // Decouple mode - END

    // Override mode - START
    bool mOverrideModeSwitch;
    bool mOverrideModeChange;
    std::mutex mOverrideModeMutex;
    bool isOverrideModeChange();
    // Override mode - END

public:
    static MtkDuration& getInstance() {
        static MtkDuration gInstance;
        return gInstance;
    }

    ~MtkDuration() {};

    nsecs_t initMtkDuration(const char* type, nsecs_t vsync, nsecs_t /*default*/) const;

    bool isEnable();
    bool usingMtkDuration();
    scheduler::VsyncConfig getMtkDuration(
            scheduler::VsyncConfig&);

    void setVsyncPeriod(nsecs_t vsync);
    bool onDisplayRefresh();
    std::chrono::nanoseconds getCurrentMtkPresentLatency(
            std::chrono::nanoseconds, std::chrono::nanoseconds);
    std::chrono::nanoseconds getDecoupleMtkPresentLatency(
            std::chrono::nanoseconds, std::chrono::nanoseconds);
    void dump(std::string& result);
    void setIsExtraVsyncSupported(bool);
    uint32_t setExtraVsyncCount(uint64_t, uint32_t);
    size_t getExtraVsyncCount();
    void setIsClientComposition(bool);
    bool controlGpuBackpressure(bool);
    int getExtraBuffers();

    // Decouple mode - START
    bool getDecoupleModeUpdate();
    void setDecoupleMode(uint64_t id, bool mode);
    void updateActiveDisplayId(uint64_t id);
    void onNewInternalDisplay(uint64_t id);
    // Decouple mode - END

    // Override mode - START
    void setOverrideDuration(nsecs_t app, nsecs_t sf);
    // Override mode - END
};
// ---------------------------------------------------------------------------
}; // namespace android