media_driver/agnostic/gen12/codec/hal/codechal_decode_mpeg2_g12.h

/*
* Copyright (c) 2017-2019, Intel Corporation
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//!
//! \file     codechal_decode_mpeg2_g12.h
//! \brief    Defines the decode interface extension for MPEG2.
//! \details  Defines all types, macros, and functions required by CodecHal for MPEG2 decoding. Definitions are not externally facing.
//!

#ifndef __CODECHAL_DECODER_MPEG2_G12_H__
#define __CODECHAL_DECODER_MPEG2_G12_H__

#include "codechal_decode_mpeg2.h"
#include "codechal_decode_singlepipe_virtualengine.h"

//!
//! \class CodechalDecodeMpeg2G12
//! \brief This class defines the member fields, functions etc used by GEN12 MPEG2 decoder.
//!
class CodechalDecodeMpeg2G12 : public CodechalDecodeMpeg2
{
public:

    //!
    //! \brief  Constructor
    //! \param    [in] hwInterface
    //!           Hardware interface
    //! \param    [in] debugInterface
    //!           Debug interface
    //! \param    [in] standardInfo
    //!           The information of decode standard for this instance
    //!
    CodechalDecodeMpeg2G12(
        CodechalHwInterface   *hwInterface,
        CodechalDebugInterface* debugInterface,
        PCODECHAL_STANDARD_INFO standardInfo);

    //!
    //! \brief    Copy constructor
    //!
    CodechalDecodeMpeg2G12(const CodechalDecodeMpeg2G12&) = delete;

    //!
    //! \brief    Copy assignment operator
    //!
    CodechalDecodeMpeg2G12& operator=(const CodechalDecodeMpeg2G12&) = delete;

    //!
    //! \brief    Destructor
    //!
    virtual ~CodechalDecodeMpeg2G12 ();

    MOS_STATUS  AllocateStandard(
        CodechalSetting *          settings) override;

    //!
    //! \brief  Set states for each frame to prepare for GEN12 MPEG2 decode
    //! \return MOS_STATUS
    //!         MOS_STATUS_SUCCESS if success, else fail reason
    //!
    MOS_STATUS  SetFrameStates() override;

    MOS_STATUS  DecodeStateLevel() override;

    MOS_STATUS  SliceLevel() override;

    MOS_STATUS  InitMmcState() override;

    void CalcRequestedSpace(
        uint32_t &requestedSize,
        uint32_t &additionalSizeNeeded,
        uint32_t &requestedPatchListSize) override;

protected:
    MOS_STATUS SetGpuCtxCreatOption(CodechalSetting *settings) override;

private:
    PCODECHAL_DECODE_SINGLEPIPE_VIRTUALENGINE_STATE m_veState = nullptr;  //!< single pipe virtual engine state
    //! \Huc state level command buffer size is required
    uint32_t m_HucStateCmdBufferSizeNeeded = 0;
    //! \Huc state level patch list size is required
    uint32_t m_HucPatchListSizeNeeded = 0;
};

#endif  // __CODECHAL_DECODER_MPEG2_G11_H__