/*
* Copyright (c) 2017, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
//!
//! \file     codechal_mmc_decode_vp9.cpp
//! \brief    Impelements the public interface for CodecHal Media Memory Compression
//!

#include "codechal_mmc_decode_vp9.h"

CodechalMmcDecodeVp9::CodechalMmcDecodeVp9(
    CodechalHwInterface    *hwInterface,
    void *standardState):
    CodecHalMmcState(hwInterface)
{
    CODECHAL_DECODE_FUNCTION_ENTER;

    m_vp9State = (CodechalDecodeVp9 *)standardState;
    CODECHAL_HW_ASSERT(m_vp9State);

    CODECHAL_HW_ASSERT(hwInterface);
    CODECHAL_HW_ASSERT(hwInterface->GetSkuTable());
    if (MEDIA_IS_SKU(hwInterface->GetSkuTable(), FtrMemoryCompression))
    {
        MOS_USER_FEATURE_VALUE_DATA userFeatureData;
        MOS_ZeroMemory(&userFeatureData, sizeof(userFeatureData));
        userFeatureData.i32Data = m_mmcEnabled;
        userFeatureData.i32DataFlag = MOS_USER_FEATURE_VALUE_DATA_FLAG_CUSTOM_DEFAULT_VALUE_TYPE;

        MOS_UserFeature_ReadValue_ID(
            nullptr,
            __MEDIA_USER_FEATURE_VALUE_DECODE_MMC_ENABLE_ID,
            &userFeatureData,
            m_osInterface->pOsContext);
        m_mmcEnabled = (userFeatureData.i32Data) ? true : false;

        MOS_USER_FEATURE_VALUE_WRITE_DATA userFeatureWriteData;
        MOS_ZeroMemory(&userFeatureWriteData, sizeof(userFeatureWriteData));
        userFeatureWriteData.Value.i32Data = m_mmcEnabled;
        userFeatureWriteData.ValueID = __MEDIA_USER_FEATURE_VALUE_DECODE_MMC_IN_USE_ID;
        MOS_UserFeature_WriteValues_ID(nullptr, &userFeatureWriteData, 1, m_osInterface->pOsContext);
    }
#if (_DEBUG || _RELEASE_INTERNAL)
    m_compressibleId  = __MEDIA_USER_FEATURE_VALUE_MMC_DEC_RT_COMPRESSIBLE_ID;
    m_compressModeId  = __MEDIA_USER_FEATURE_VALUE_MMC_DEC_RT_COMPRESSMODE_ID;
#endif
}

MOS_STATUS CodechalMmcDecodeVp9::SetPipeBufAddr(
    PMHW_VDBOX_PIPE_BUF_ADDR_PARAMS pipeBufAddrParams,
    PMOS_COMMAND_BUFFER cmdBuffer)
{
    MOS_STATUS eStatus = MOS_STATUS_SUCCESS;

    CODECHAL_DECODE_FUNCTION_ENTER;

    if (m_mmcEnabled &&
        m_hcpMmcEnabled &&
        m_vp9State->m_destSurface.bCompressible)
    {
        if ((m_10bitMmcEnabled && m_vp9State->m_destSurface.Format == Format_P010) ||
            (m_vp9State->m_destSurface.Format == Format_NV12))
        {
            pipeBufAddrParams->PreDeblockSurfMmcState = MOS_MEMCOMP_HORIZONTAL;
        }
        else
        {
            pipeBufAddrParams->PreDeblockSurfMmcState = MOS_MEMCOMP_DISABLED;
        }
    }

    CODECHAL_DEBUG_TOOL(
        m_vp9State->m_destSurface.MmcState = pipeBufAddrParams->PreDeblockSurfMmcState;)

    return eStatus;
}

MOS_STATUS CodechalMmcDecodeVp9::SetRefrenceSync(
    bool disableDecodeSyncLock,
    bool disableLockForTranscode)
{
    MOS_STATUS eStatus = MOS_STATUS_SUCCESS;

    CODECHAL_DECODE_FUNCTION_ENTER;

    // Check if reference surface needs to be synchronized in MMC case
    if (m_mmcEnabled)
    {
        MOS_SYNC_PARAMS syncParams = g_cInitSyncParams;
        syncParams.GpuContext = m_vp9State->GetVideoContext();
        syncParams.bDisableDecodeSyncLock = disableDecodeSyncLock;
        syncParams.bDisableLockForTranscode = disableLockForTranscode;

        if (m_vp9State->m_presLastRefSurface)
        {
            syncParams.presSyncResource = m_vp9State->m_presLastRefSurface;
            syncParams.bReadOnly = true;

            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnPerformOverlaySync(m_osInterface, &syncParams));
            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnResourceWait(m_osInterface, &syncParams));
            m_osInterface->pfnSetResourceSyncTag(m_osInterface, &syncParams);
        }

        if (m_vp9State->m_presGoldenRefSurface)
        {
            syncParams.presSyncResource = m_vp9State->m_presGoldenRefSurface;
            syncParams.bReadOnly = true;

            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnPerformOverlaySync(m_osInterface, &syncParams));
            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnResourceWait(m_osInterface, &syncParams));
            m_osInterface->pfnSetResourceSyncTag(m_osInterface, &syncParams);
        }

        if (m_vp9State->m_presAltRefSurface)
        {
            syncParams.presSyncResource = m_vp9State->m_presAltRefSurface;
            syncParams.bReadOnly = true;

            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnPerformOverlaySync(m_osInterface, &syncParams));
            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnResourceWait(m_osInterface, &syncParams));
            m_osInterface->pfnSetResourceSyncTag(m_osInterface, &syncParams);
        }
    }

    return eStatus;
}

MOS_STATUS CodechalMmcDecodeVp9::CheckReferenceList(
        PMHW_VDBOX_PIPE_BUF_ADDR_PARAMS pipeBufAddrParams)
{
    MOS_STATUS eStatus = MOS_STATUS_SUCCESS;

    CODECHAL_DECODE_FUNCTION_ENTER;

    CODECHAL_DECODE_CHK_NULL_RETURN(pipeBufAddrParams);
    CODECHAL_DECODE_CHK_NULL_RETURN(m_vp9State->m_vp9PicParams);
    auto picParams = m_vp9State->m_vp9PicParams;

    MOS_MEMCOMP_STATE mmcMode;

    // Disable MMC if self-reference is dectected for P/B frames (mainly for error concealment)
    if (((pipeBufAddrParams->PostDeblockSurfMmcState != MOS_MEMCOMP_DISABLED) ||
        (pipeBufAddrParams->PreDeblockSurfMmcState != MOS_MEMCOMP_DISABLED)) &&
        (picParams->PicFlags.fields.frame_type != CODEC_VP9_KEY_FRAME &&
        !picParams->PicFlags.fields.intra_only))
    {
        bool selfReference = false;
        if ((picParams->CurrPic.FrameIdx == picParams->RefFrameList[picParams->PicFlags.fields.LastRefIdx].FrameIdx)   ||
            (picParams->CurrPic.FrameIdx == picParams->RefFrameList[picParams->PicFlags.fields.GoldenRefIdx].FrameIdx) ||
            (picParams->CurrPic.FrameIdx == picParams->RefFrameList[picParams->PicFlags.fields.AltRefIdx].FrameIdx))
        {
            selfReference = true;
        }

        if (selfReference)
        {
            pipeBufAddrParams->PostDeblockSurfMmcState = MOS_MEMCOMP_DISABLED;
            pipeBufAddrParams->PreDeblockSurfMmcState  = MOS_MEMCOMP_DISABLED;
            CODECHAL_DECODE_ASSERTMESSAGE("Self-reference is detected for P/B frames!");

            // Decompress current frame to avoid green corruptions in this error handling case
            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnGetMemoryCompressionMode(
                m_osInterface,
                &m_vp9State->m_destSurface.OsResource,
                &mmcMode));
            if (mmcMode != MOS_MEMCOMP_DISABLED)
            {
                m_osInterface->pfnDecompResource(m_osInterface, &m_vp9State->m_destSurface.OsResource);
            }
        }
    }

    // Do surface decompression to make sure the MMC states are consistent in the reference list
    MOS_MEMCOMP_STATE mmcModePrev = MOS_MEMCOMP_DISABLED;
    bool sameMmcStatus = true;
    bool firstRefPic = true;
    for (uint8_t i = 0; i < CODECHAL_MAX_CUR_NUM_REF_FRAME_VP9; i++)
    {
        if (pipeBufAddrParams->presReferences[i])
        {
            CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnGetMemoryCompressionMode(
                m_osInterface,
                pipeBufAddrParams->presReferences[i],
                &mmcMode));
            if (firstRefPic)
            {
                mmcModePrev = mmcMode;
                firstRefPic = false;
            }
            else if (mmcModePrev != mmcMode)
            {
                sameMmcStatus = false;
                break;
            }
        }
    }

    if(!sameMmcStatus)
    {
        for (uint8_t i = 0; i < CODECHAL_MAX_CUR_NUM_REF_FRAME_VP9; i++)
        {
            if (pipeBufAddrParams->presReferences[i])
            {
                CODECHAL_DECODE_CHK_STATUS_RETURN(m_osInterface->pfnGetMemoryCompressionMode(
                    m_osInterface,
                    pipeBufAddrParams->presReferences[i],
                    &mmcMode));
                if(mmcMode != MOS_MEMCOMP_DISABLED)
                {
                    m_osInterface->pfnDecompResource(
                        m_osInterface,
                        pipeBufAddrParams->presReferences[i]);
                }
            }
        }
    }

    return eStatus;
}