media_driver/agnostic/gen10/codec/hal/codechal_encode_wp_g10.cpp

/*
* 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
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* OTHER DEALINGS IN THE SOFTWARE.
*/
//!
//! \file     codechal_encode_wp_g10.cpp
//! \brief    This file implements the weighted prediction feature for all codecs on Gen10 platform
//!

#include "codechal_encoder_base.h"
#include "codechal_encode_wp_g10.h"
#include "codeckrnheader.h"

//!
//! \brief    Public member functions
//!
CodechalEncodeWPG10::CodechalEncodeWPG10(CodechalEncoderState* encoder)
    : CodechalEncodeWP(encoder)
{
    m_kernelUID = IDR_CODEC_AllAVCEnc;
}

MOS_STATUS CodechalEncodeWPG10::InitKernelState()
{
    CODECHAL_ENCODE_FUNCTION_ENTER;

    MOS_STATUS eStatus = MOS_STATUS_SUCCESS;

    if (!m_kernelState)
    {
        CODECHAL_ENCODE_CHK_NULL_RETURN(m_kernelState = MOS_New(MHW_KERNEL_STATE));
    }

    uint8_t* binary;
    CODECHAL_ENCODE_CHK_STATUS_RETURN(CodecHalGetKernelBinaryAndSize(
        m_kernelBase,
        m_kernelUID,
        &binary,
        &m_combinedKernelSize));

    auto kernelSize = m_combinedKernelSize;
    CODECHAL_KERNEL_HEADER currKrnHeader;

    CODECHAL_ENCODE_CHK_STATUS_RETURN(pfnGetKernelHeaderAndSize(
        binary,
        ENC_WP,
        0,
        &currKrnHeader,
        &kernelSize));

    m_kernelState->KernelParams.iBTCount          = wpNumSurfaces;
    m_kernelState->KernelParams.iThreadCount      = m_renderInterface->GetHwCaps()->dwMaxThreads;
    m_kernelState->KernelParams.iCurbeLength      = m_curbeLength;
    m_kernelState->KernelParams.iBlockWidth       = CODECHAL_MACROBLOCK_WIDTH;
    m_kernelState->KernelParams.iBlockHeight      = CODECHAL_MACROBLOCK_HEIGHT;
    m_kernelState->KernelParams.iIdCount          = 1;
    m_kernelState->KernelParams.iInlineDataLength = 0;
    m_kernelState->dwCurbeOffset                  = m_stateHeapInterface->GetSizeofCmdInterfaceDescriptorData();
    m_kernelState->KernelParams.pBinary           = binary + (currKrnHeader.KernelStartPointer << MHW_KERNEL_OFFSET_SHIFT);
    m_kernelState->KernelParams.iSize             = kernelSize;
    CODECHAL_ENCODE_CHK_STATUS_RETURN(m_stateHeapInterface->CalculateSshAndBtSizesRequested(
        m_kernelState->KernelParams.iBTCount,
        &m_kernelState->dwSshSize,
        &m_kernelState->dwBindingTableSize));

    CODECHAL_ENCODE_CHK_NULL_RETURN(m_renderInterface->m_stateHeapInterface);
    CODECHAL_ENCODE_CHK_STATUS_RETURN(m_hwInterface->MhwInitISH(m_renderInterface->m_stateHeapInterface, m_kernelState));

    return eStatus;
}