/*
 * Copyright (c) Hisilicon Technologies Co., Ltd.. 2016-2019. All rights reserved.
 * Description: Some callback interfaces of hwcomposer
 * Author: Hisilicon
 * Created: 2016.08.12
 */

#include "HWCCallbacks.h"
#include <log/log.h>

namespace android {
HWCCallbacks::HWCCallbacks()
    : m_hotplugData(nullptr),
      m_refreshData(nullptr),
      m_vsyncData(nullptr),
      m_hotplug(nullptr),
      m_refresh(nullptr),
      m_vsync(nullptr)
{
}

HWCCallbacks::~HWCCallbacks()
{
}

void HWCCallbacks::Hotplug(hwc2_display_t display, HWC2::Connection state) const
{
    if (m_hotplug != nullptr) {
        m_hotplug(m_hotplugData, display, int32_t(state));
    } else {
        ALOGI("ignore Hotplug event because surfaceflinger have not RegisterCallback yet");
    }
}

void HWCCallbacks::Refresh(hwc2_display_t display) const
{
    if (m_refresh != nullptr) {
        m_refresh(m_refreshData, display);
    }
}

void HWCCallbacks::Vsync(hwc2_display_t display, int64_t timestamp) const
{
    if (m_vsync != nullptr) {
        m_vsync(m_vsyncData, display, timestamp);
    }
}

HWC2::Error HWCCallbacks::Register(HWC2::Callback descriptor, hwc2_callback_data_t callbackData,
    hwc2_function_pointer_t pointer)
{
    switch (descriptor) {
        case HWC2::Callback::Hotplug:
            m_hotplugData = callbackData;
            m_hotplug = reinterpret_cast<HWC2_PFN_HOTPLUG>(pointer);
            break;
        case HWC2::Callback::Refresh:
            m_refreshData = callbackData;
            m_refresh = reinterpret_cast<HWC2_PFN_REFRESH>(pointer);
            break;
        case HWC2::Callback::Vsync:
            m_vsyncData = callbackData;
            m_vsync = reinterpret_cast<HWC2_PFN_VSYNC>(pointer);
            break;
        default:
            return HWC2::Error::BadParameter;
    }
    return HWC2::Error::None;
}
} // namespace android