/work/vvenc/source/Lib/CommonLib/Buffer.h

Source
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/** \file     Buffer.h
 *  \brief    Low-overhead class describing 2D memory layout
 */

#pragma once

#ifndef __IN_UNIT_H__
#error "Include Unit.h not Buffer.h"
#endif

#include "Common.h"
#include "CommonDef.h"
#include "MotionInfo.h"

#include <string.h>
#include <type_traits>
#include <typeinfo>

#include "vvenc/vvenc.h"

//! \ingroup CommonLib
//! \{

struct vvencYUVBuffer;

namespace vvenc {

#if ENABLE_SIMD_OPT_BUFFER && defined(TARGET_SIMD_X86)
using namespace x86_simd;
#endif

#if ENABLE_SIMD_OPT_BUFFER && defined(TARGET_SIMD_ARM)
using namespace arm_simd;
#endif

// ---------------------------------------------------------------------------
// AreaBuf struct
// ---------------------------------------------------------------------------

struct PelBufferOps
{
  PelBufferOps();
  void initPelBufOps( bool enableOpt = true );

#define INCX( ptr, stride ) { ptr++; }
#define INCY( ptr, stride ) { ptr += ( stride ); }
#define OFFSETX( ptr, stride, x ) { ptr += ( x ); }
#define OFFSETY( ptr, stride, y ) { ptr += ( y ) * ( stride ); }
#define OFFSET( ptr, stride, x, y ) { ptr += ( x ) + ( y ) * ( stride ); }
#define GET_OFFSETX( ptr, stride, x ) ( ( ptr ) + ( x ) )
#define GET_OFFSETY( ptr, stride, y ) ( ( ptr ) + ( y ) * ( stride ) )
#define GET_OFFSET( ptr, stride, x, y ) ( ( ptr ) + ( x ) + ( y ) * ( stride ) ) // need in loopFilter.cpp + some ARM files

  void ( *roundGeo )      ( const Pel* src, Pel* dest, const int numSamples, unsigned rshift, int offset, const ClpRng &clpRng);
  void ( *addAvg )        ( const Pel* src0, const Pel* src1, Pel* dst, int numsamples, unsigned shift, int offset, const ClpRng& clpRng );
  void ( *reco  )         ( const Pel* src0, const Pel* src1, Pel* dst, int numSamples, const ClpRng& clpRng );
  void ( *copyClip )      ( const Pel* src0,                  Pel* dst, int numSamples, const ClpRng& clpRng );
  void ( *addAvg4 )       ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height,       unsigned shift, int offset, const ClpRng& clpRng );
  void ( *addAvg8 )       ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height,       unsigned shift, int offset, const ClpRng& clpRng );
  void ( *addAvg16 )      ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height,       unsigned shift, int offset, const ClpRng& clpRng );
  void ( *sub4 )          ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height );
  void ( *sub8 )          ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height );
  void ( *wghtAvg4 )      ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel *dst, int dstStride, int width, int height,       unsigned shift, int offset, int w0, int w1, const ClpRng& clpRng );
  void ( *wghtAvg8 )      ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel *dst, int dstStride, int width, int height,       unsigned shift, int offset, int w0, int w1, const ClpRng& clpRng );
  void ( *copyClip4 )     ( const Pel* src0, int src0Stride,                                  Pel* dst, int dstStride, int width, int height,                                   const ClpRng& clpRng );
  void ( *copyClip8 )     ( const Pel* src0, int src0Stride,                                  Pel* dst, int dstStride, int width, int height,                                   const ClpRng& clpRng );
  void ( *reco4 )         ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height,                                   const ClpRng& clpRng );
  void ( *reco8 )         ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel* dst, int dstStride, int width, int height,                                   const ClpRng& clpRng );
  void ( *linTf4 )        ( const Pel* src0, int src0Stride,                                  Pel* dst, int dstStride, int width, int height, int scale, unsigned shift, int offset, const ClpRng& clpRng, bool bClip );
  void ( *linTf8 )        ( const Pel* src0, int src0Stride,                                  Pel* dst, int dstStride, int width, int height, int scale, unsigned shift, int offset, const ClpRng& clpRng, bool bClip );
  void ( *copyBuffer )    ( const char* src, int srcStride, char* dst, int dstStride, int width, int height );
  void ( *removeHighFreq8)( Pel* src0, int src0Stride, const Pel* src1, int src1Stride, int width, int height);
  void ( *removeHighFreq4)( Pel* src0, int src0Stride, const Pel* src1, int src1Stride, int width, int height);
  void ( *transpose4x4 )  ( const Pel* src,  int srcStride, Pel* dst, int dstStride );
  void ( *transpose8x8 )  ( const Pel* src,  int srcStride, Pel* dst, int dstStride );
  void ( *roundIntVector) ( int* v, int size, unsigned int nShift, const int dmvLimit);
  void ( *mipMatrixMul_4_4)( Pel* res, const Pel* input, const uint8_t* weight, const int maxVal, const int offset, bool transpose );
  void ( *mipMatrixMul_8_4)( Pel* res, const Pel* input, const uint8_t* weight, const int maxVal, const int offset, bool transpose );
  void ( *mipMatrixMul_8_8)( Pel* res, const Pel* input, const uint8_t* weight, const int maxVal, const int offset, bool transpose );
  void ( *weightCiip)     ( Pel* res, const Pel* intra, const int numSamples, int numIntra );
  void ( *fillPtrMap )    ( void** ptrMap, const ptrdiff_t mapStride, int width, int height, void* val );
  uint64_t ( *AvgHighPassWithDownsampling )    ( const int width, const int height, const Pel* pSrc, const int iSrcStride);
  uint64_t ( *AvgHighPass )    ( const int width, const int height, const Pel* pSrc, const int iSrcStride);
  uint64_t ( *AvgHighPassWithDownsamplingDiff1st ) (const int width, const int height, const Pel* pSrc,const Pel* pSrcM1, const int iSrcStride, const int iSrcM1Stride);
  uint64_t ( *AvgHighPassWithDownsamplingDiff2nd) (const int width,const int height,const Pel* pSrc,const Pel* pSM1,const Pel* pS21,const int iSrcStride,const int iSM1Stride,const int iSM2Stride);
  uint64_t ( *HDHighPass) (const int width, const int height,const Pel*  pSrc,const Pel* pSM1,const int iSrcStride,const int iSM1Stride);
  uint64_t ( *HDHighPass2)  (const int width, const int height,const Pel*  pSrc,const Pel* pSM1,const Pel* pSM2,const int iSrcStride,const int iSM1Stride,const int iSM2Stride);

private:
  bool isInitSIMDDone = false;

#if ENABLE_SIMD_OPT_BUFFER && defined(TARGET_SIMD_X86)
  void initPelBufOpsX86();
  template<X86_VEXT vext>
  void _initPelBufOpsX86();
#endif

#if ENABLE_SIMD_OPT_BUFFER && defined( TARGET_SIMD_ARM )
  void initPelBufOpsARM();
  template<ARM_VEXT vext>
  void _initPelBufOpsARM();
#endif
};

extern PelBufferOps g_pelBufOP;

template<typename T>
struct AreaBuf : public Size
{
  T*        buf;
  int       stride;
  // the proper type causes awful lot of errors

  AreaBuf()                                                                               : Size(),                  buf( NULL ), stride( 0 )          { }
  AreaBuf( T *_buf, const Size& size )                                                    : Size( size ),            buf( _buf ), stride( size.width ) { }
  AreaBuf( T *_buf, const int& _stride, const Size& size )                                : Size( size ),            buf( _buf ), stride( _stride )    { }
  AreaBuf( T *_buf, const SizeType& _width, const SizeType& _height )                     : Size( _width, _height ), buf( _buf ), stride( _width )     { }
  AreaBuf( T *_buf, const int& _stride, const SizeType& _width, const SizeType& _height ) : Size( _width, _height ), buf( _buf ), stride( _stride )    { }

  AreaBuf( const AreaBuf& )  = default;
  AreaBuf(       AreaBuf&& ) = default;
  AreaBuf& operator=( const AreaBuf& )  = default;
  AreaBuf& operator=(       AreaBuf&& ) = default;

  // conversion from AreaBuf<const T> to AreaBuf<T>
  template<bool T_IS_CONST = std::is_const<T>::value>
  AreaBuf( const AreaBuf<typename std::remove_const_t<T>>& other, std::enable_if_t<T_IS_CONST>* = 0) : Size( other ), buf( other.buf ), stride( other.stride ) { }

  void fill                 ( const T &val );
  void memset               ( const int val );

  void copyFrom             ( const AreaBuf<const T>& other );
  void reconstruct          ( const AreaBuf<const T>& pred, const AreaBuf<const T>& resi, const ClpRng& clpRng);
  void copyClip             ( const AreaBuf<const T>& src, const ClpRng& clpRng);

  void subtract             ( const AreaBuf<const T>& minuend, const AreaBuf<const T>& subtrahend );
  void calcVarianceSplit    ( const AreaBuf<const T>& Org, const uint32_t  size,int& varh,int& varv ) const;
  void extendBorderPel      ( unsigned marginX, unsigned marginY );

  void addAvg               ( const AreaBuf<const T>& other1, const AreaBuf<const T>& other2, const ClpRng& clpRng );
  T    getAvg               () const;
  void padBorderPel         ( unsigned marginX, unsigned marginY, int dir );
  void addWeightedAvg       ( const AreaBuf<const T>& other1, const AreaBuf<const T>& other2, const ClpRng& clpRng, const int8_t BcwIdx );
  void removeHighFreq       ( const AreaBuf<const T>& other, const bool bClip, const ClpRng& clpRng);
  void extendBorderPelTop   ( int x, int size, int margin );
  void extendBorderPelBot   ( int x, int size, int margin );
  void extendBorderPelLft   ( int y, int size, int margin );
  void extendBorderPelRgt   ( int y, int size, int margin );

  void linearTransform      ( const int scale, const unsigned shift, const int offset, bool bClip, const ClpRng& clpRng );

  void transposedFrom       ( const AreaBuf<const T>& other );
  void weightCiip           ( const AreaBuf<const T>& intra, const int numIntra );

  bool compare              ( const AreaBuf<const T>& other ) const;

        T& at( const int& x, const int& y )          { return buf[y * stride + x]; }
  const T& at( const int& x, const int& y ) const    { return buf[y * stride + x]; }

        T& at( const Position& pos )                 { return buf[pos.y * stride + pos.x]; }
  const T& at( const Position& pos ) const           { return buf[pos.y * stride + pos.x]; }


        T* bufAt( const int& x, const int& y )       { return &at( x, y ); }
  const T* bufAt( const int& x, const int& y ) const { return &at( x, y ); }

        T* bufAt( const Position& pos )              { return &at( pos ); }
  const T* bufAt( const Position& pos ) const        { return &at( pos ); }

  AreaBuf<      T> subBuf( const Area& area )                                                         { return AreaBuf<      T>( bufAt( area ), stride, area   ); }
  AreaBuf<const T> subBuf( const Area& area )                                                   const { return AreaBuf<const T>( bufAt( area ), stride, area   ); }
  AreaBuf<      T> subBuf( const Position& pos, const Size& size )                                    { return AreaBuf<      T>( bufAt( pos  ), stride, size   ); }
  AreaBuf<const T> subBuf( const Position& pos, const Size& size )                              const { return AreaBuf<const T>( bufAt( pos  ), stride, size   ); }
  AreaBuf<      T> subBuf( const int& x, const int& y, const unsigned& _w, const unsigned& _h )       { return AreaBuf<      T>( bufAt( x, y ), stride, _w, _h ); }
  AreaBuf<const T> subBuf( const int& x, const int& y, const unsigned& _w, const unsigned& _h ) const { return AreaBuf<const T>( bufAt( x, y ), stride, _w, _h ); }
};

typedef AreaBuf<      Pel>  PelBuf;
typedef AreaBuf<const Pel> CPelBuf;

typedef AreaBuf<      TCoeff>  CoeffBuf;
typedef AreaBuf<const TCoeff> CCoeffBuf;

typedef AreaBuf<      TCoeffSig>  CoeffSigBuf;
typedef AreaBuf<const TCoeffSig> CCoeffSigBuf;

typedef AreaBuf<      MotionInfo>  MotionBuf;
typedef AreaBuf<const MotionInfo> CMotionBuf;

typedef AreaBuf<      TCoeff>  PLTescapeBuf;
typedef AreaBuf<const TCoeff> CPLTescapeBuf;

typedef AreaBuf<      bool>  PLTtypeBuf;
typedef AreaBuf<const bool> CPLTtypeBuf;

typedef AreaBuf<      LoopFilterParam>  LFPBuf;
typedef AreaBuf<const LoopFilterParam> CLFPBuf;

#define SIZE_AWARE_PER_EL_OP( OP, INC )                     \
if( ( width & 7 ) == 0 )                                    \
{                                                           \
  for( int y = 0; y < height; y++ )                         \
  {                                                         \
    for( int x = 0; x < width; x += 8 )                     \
    {                                                       \
      OP( x + 0 );                                          \
      OP( x + 1 );                                          \
      OP( x + 2 );                                          \
      OP( x + 3 );                                          \
      OP( x + 4 );                                          \
      OP( x + 5 );                                          \
      OP( x + 6 );                                          \
      OP( x + 7 );                                          \
    }                                                       \
                                                            \
    INC;                                                    \
  }                                                         \
}                                                           \
else if( ( width & 3 ) == 0 )                               \
{                                                           \
  for( int y = 0; y < height; y++ )                         \
  {                                                         \
    for( int x = 0; x < width; x += 4 )                     \
    {                                                       \
      OP( x + 0 );                                          \
      OP( x + 1 );                                          \
      OP( x + 2 );                                          \
      OP( x + 3 );                                          \
    }                                                       \
                                                            \
    INC;                                                    \
  }                                                         \
}                                                           \
else if( ( width & 1 ) == 0 )                               \
{                                                           \
  for( int y = 0; y < height; y++ )                         \
  {                                                         \
    for( int x = 0; x < width; x += 2 )                     \
    {                                                       \
      OP( x + 0 );                                          \
      OP( x + 1 );                                          \
    }                                                       \
                                                            \
    INC;                                                    \
  }                                                         \
}                                                           \
else                                                        \
{                                                           \
  for( int y = 0; y < height; y++ )                         \
  {                                                         \
    for( int x = 0; x < width; x++ )                        \
    {                                                       \
      OP( x );                                              \
    }                                                       \
                                                            \
    INC;                                                    \
  }                                                         \
}


template<typename T>
T AreaBuf <T> ::getAvg() const
{
  const T* src = buf;
  int64_t  acc = 0;

#define AVG_INC      src += stride
#define AVG_OP(ADDR) acc += src[ADDR]
  SIZE_AWARE_PER_EL_OP(AVG_OP, AVG_INC);
#undef AVG_INC
#undef AVG_OP

  return T ((acc + (area() >> 1)) / area());
}

template<>
void AreaBuf<MotionInfo>::fill( const MotionInfo& val );

template<typename T>
void AreaBuf<T>::fill(const T &val)
{
  if( T( 0 ) == val )
  {
    GCC_WARNING_DISABLE_class_memaccess
    if( width == stride )
    {
      ::memset( buf, 0, width * height * sizeof( T ) );
    }
    else
    {
      T* dest = buf;
      size_t line = width * sizeof( T );

      for( unsigned y = 0; y < height; y++ )
      {
        ::memset( dest, 0, line );

        dest += stride;
      }
    }
    GCC_WARNING_RESET
  }
  else
  {
    if( width == stride )
    {
      std::fill_n( buf, width * height, val );
    }
    else
    {
      T* dest = buf;

      for( int y = 0; y < height; y++, dest += stride )
      {
        std::fill_n( dest, width, val );
      }
    }
  }
}

template<typename T>
void AreaBuf<T>::memset( const int val )
{
  GCC_WARNING_DISABLE_class_memaccess
  if( width == stride )
  {
    ::memset( buf, val, width * height * sizeof( T ) );
  }
  else
  {
    T* dest = buf;
    size_t line = width * sizeof( T );

    for( int y = 0; y < height; y++, dest += stride )
    {
      ::memset( dest, val, line );
    }
  }
  GCC_WARNING_RESET
}

template<typename T>
void AreaBuf<T>::copyFrom( const AreaBuf<const T>& other )
{
#if !defined(__GNUC__) || __GNUC__ > 5
  static_assert( std::is_trivially_copyable<T>::value, "Type T is not trivially_copyable" );
#endif

  g_pelBufOP.copyBuffer( ( const char* ) other.buf, other.stride * sizeof( T ), ( char* ) buf, stride * sizeof( T ), width * sizeof( T ), height );
}

template<typename T>
void AreaBuf<T>::subtract( const AreaBuf<const T>& minuend, const AreaBuf<const T>& subtrahend )
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<Pel>::subtract( const AreaBuf<const Pel>& minuend, const AreaBuf<const Pel>& subtrahend );

template<typename T>
void AreaBuf<T>::calcVarianceSplit( const AreaBuf<const T>& Org, const uint32_t  size,int& varh,int& varv ) const 
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<const Pel>::calcVarianceSplit( const AreaBuf<const Pel>& Org, const uint32_t  size, int& varh,int&varv ) const;

template<typename T>
void AreaBuf<T>::copyClip( const AreaBuf<const T>& src, const ClpRng& clpRng )
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<Pel>::copyClip( const AreaBuf<const Pel>& src, const ClpRng& clpRng );

template<typename T>
void AreaBuf<T>::reconstruct( const AreaBuf<const T>& pred, const AreaBuf<const T>& resi, const ClpRng& clpRng )
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<Pel>::reconstruct( const AreaBuf<const Pel>& pred, const AreaBuf<const Pel>& resi, const ClpRng& clpRng );

template<typename T>
void AreaBuf<T>::addAvg( const AreaBuf<const T>& other1, const AreaBuf<const T>& other2, const ClpRng& clpRng )
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<Pel>::addAvg( const AreaBuf<const Pel>& other1, const AreaBuf<const Pel>& other2, const ClpRng& clpRng );

template<typename T>
void AreaBuf<T>::linearTransform( const int scale, const unsigned shift, const int offset, bool bClip, const ClpRng& clpRng )
{
  THROW( "Type not supported" );
}

template<>
void AreaBuf<Pel>::linearTransform( const int scale, const unsigned shift, const int offset, bool bClip, const ClpRng& clpRng );

template<typename T>
void AreaBuf<T>::removeHighFreq( const AreaBuf<const T>& other, const bool bClip, const ClpRng& clpRng )
{
  const T*  src       = other.buf;
  const int srcStride = other.stride;

        T*  dst       = buf;
  const int dstStride = stride;

#if ENABLE_SIMD_OPT_BCW
  if (!bClip)
  {
    if(!(width & 7))
      g_pelBufOP.removeHighFreq8(dst, dstStride, src, srcStride, width, height);
    else if (!(width & 3))
      g_pelBufOP.removeHighFreq4(dst, dstStride, src, srcStride, width, height);
    else
      CHECK(true, "Not supported");
  }
  else
  {
#endif

#define REM_HF_INC  \
  src += srcStride; \
  dst += dstStride; \

#define REM_HF_OP_CLIP( ADDR ) dst[ADDR] = ClipPel<T>( 2 * dst[ADDR] - src[ADDR], clpRng )
#define REM_HF_OP( ADDR )      dst[ADDR] =             2 * dst[ADDR] - src[ADDR]

  if( bClip )
  {
    SIZE_AWARE_PER_EL_OP( REM_HF_OP_CLIP, REM_HF_INC );
  }
  else
  {
    SIZE_AWARE_PER_EL_OP( REM_HF_OP,      REM_HF_INC );
  }

#undef REM_HF_INC
#undef REM_HF_OP
#undef REM_HF_OP_CLIP

#if ENABLE_SIMD_OPT_BCW
  }
#endif
}


template<typename T>
void AreaBuf<T>::extendBorderPelLft( int y, int size, int margin )
{
  T* p = buf + y * stride;
  int h = size + y;

  // do left and right margins
  for (; y < h; y++)
  {
    for (int x = 0; x < margin; x++)
    {
      *(p - margin + x) = p[0];
    }
    p += stride;
  }
}

template<typename T>
void AreaBuf<T>::extendBorderPelTop( int x, int size, int margin )
{
  T* p = buf + x;

  // p is now (-marginX, 0)
  for (int y = 0; y < margin; y++)
  {
    ::memcpy(p - (y + 1) * stride, p, sizeof(T) * size);
  }
}

template<typename T>
void AreaBuf<T>::extendBorderPelRgt( int y, int size, int margin )
{
  T* p = buf + y * stride;
  int h = size + y;

  // do left and right margins
  for( ; y < h; y++)
  {
    for (int x = 0; x < margin; x++)
    {
      p[width + x] = p[width - 1];
    }
    p += stride;
  }
}

template<typename T>
void AreaBuf<T>::extendBorderPelBot( int x, int size, int margin )
{
  T* p = buf + (height-1)*stride + x;

  // p is now the (-margin, height-1)
  for (int y = 0; y < margin; y++)
  {
    ::memcpy(p + (y + 1) * stride, p, sizeof(T) * size);
  }
}

template<typename T>
void AreaBuf<T>::extendBorderPel(unsigned marginX, unsigned marginY)
{
  T* p = buf;
  int h = height;
  int w = width;
  int s = stride;

  CHECK((w + 2 * marginX) > s, "Size of buffer too small to extend");
  // do left and right margins
  for (int y = 0; y < h; y++)
  {
    for (int x = 0; x < marginX; x++)
    {
      *(p - marginX + x) = p[0];
      p[w + x] = p[w - 1];
    }
    p += s;
  }

  // p is now the (0,height) (bottom left of image within bigger picture
  p -= (s + marginX);
  // p is now the (-margin, height-1)
  for (int y = 0; y < marginY; y++)
  {
    ::memcpy(p + (y + 1) * s, p, sizeof(T) * (w + (marginX << 1)));
  }

  // p is still (-marginX, height-1)
  p -= ((h - 1) * s);
  // p is now (-marginX, 0)
  for (int y = 0; y < marginY; y++)
  {
    ::memcpy(p - (y + 1) * s, p, sizeof(T) * (w + (marginX << 1)));
  }
}

template<typename T>
void AreaBuf<T>::padBorderPel( unsigned marginX, unsigned marginY, int dir )
{
  T*  p = buf;
  int s = stride;
  int h = height;
  int w = width;

  CHECK( w  > s, "Size of buffer too small to extend" );

  // top-left margin
  if ( dir == 1 )
  {
    for( int y = 0; y < marginY; y++ )
    {
      for( int x = 0; x < marginX; x++ )
      {
        p[x] = p[marginX];
      }
      p += s;
    }
  }

  // bottom-right margin
  if ( dir == 2 )
  {
    p = buf + s * ( h - marginY ) + w - marginX;

    for( int y = 0; y < marginY; y++ )
    {
      for( int x = 0; x < marginX; x++ )
      {
        p[x] = p[-1];
      }
      p += s;
    }
  }
}


#if ENABLE_SIMD_OPT_BUFFER
template<> void AreaBuf<Pel>::transposedFrom( const AreaBuf<const Pel>& other );
#endif

template<typename T>
void AreaBuf<T>::transposedFrom( const AreaBuf<const T>& other )
{
  CHECK( width * height != other.width * other.height, "Incompatible size" );

        T* dst  =       buf;
  const T* src  = other.buf;
  width         = other.height;
  height        = other.width;
  stride        = stride < width ? width : stride;

  for( unsigned y = 0; y < other.height; y++ )
  {
    for( unsigned x = 0; x < other.width; x++ )
    {
      dst[y + x*stride] = src[x + y*other.stride];
    }
  }
}

template<typename T>
bool AreaBuf <T> ::compare( const AreaBuf<const T>& other ) const
{
        T* mine   =       buf;
  const T* theirs = other.buf;
  if( width != other.width) return false;
  if( height != other.height) return false;

  for( unsigned y = 0; y < other.height; y++ )
  {
    for( unsigned x = 0; x < other.width; x++ )
    {
      if( mine[x + y*stride] != theirs[x+y*other.stride])
      {
        return false;
      }
    }
  }
  return true;
}

#ifndef DONT_UNDEF_SIZE_AWARE_PER_EL_OP
#undef SIZE_AWARE_PER_EL_OP
#endif // !DONT_UNDEF_SIZE_AWARE_PER_EL_OP

// ---------------------------------------------------------------------------
// UnitBuf struct
// ---------------------------------------------------------------------------

struct UnitArea;

template<typename T>
struct UnitBuf
{
  typedef static_vector<AreaBuf<T>,       MAX_NUM_COMP> UnitBufBuffers;
  typedef static_vector<AreaBuf<const T>, MAX_NUM_COMP> ConstUnitBufBuffers;

  ChromaFormat chromaFormat;
  UnitBufBuffers bufs;

  UnitBuf() : chromaFormat( NUM_CHROMA_FORMAT ) { }
  UnitBuf( const ChromaFormat _chromaFormat, const UnitBufBuffers&  _bufs ) : chromaFormat( _chromaFormat ), bufs( _bufs ) { }
  UnitBuf( const ChromaFormat _chromaFormat,       UnitBufBuffers&& _bufs ) : chromaFormat( _chromaFormat ), bufs( std::forward<UnitBufBuffers>( _bufs ) ) { }
  UnitBuf( const ChromaFormat _chromaFormat, const AreaBuf<T>&  blkY )      : chromaFormat( _chromaFormat ), bufs{ blkY } { }
  UnitBuf( const ChromaFormat _chromaFormat,       AreaBuf<T>&& blkY )      : chromaFormat( _chromaFormat ), bufs{ std::forward<AreaBuf<T> >(blkY) } { }
  UnitBuf( const ChromaFormat _chromaFormat, const AreaBuf<T>&  blkY, const AreaBuf<T>&  blkCb, const AreaBuf<T>  &blkCr ) : chromaFormat( _chromaFormat ), bufs{ blkY, blkCb, blkCr } { }
  UnitBuf( const ChromaFormat _chromaFormat,       AreaBuf<T>&& blkY,       AreaBuf<T>&& blkCb,       AreaBuf<T> &&blkCr ) : chromaFormat( _chromaFormat ), bufs{ std::forward<AreaBuf<T> >(blkY), std::forward<AreaBuf<T> >(blkCb), std::forward<AreaBuf<T> >(blkCr) } { }

  UnitBuf( const UnitBuf& other )  = default;
  UnitBuf(       UnitBuf&& other ) = default;
  UnitBuf& operator=( const UnitBuf& other )  = default;
  UnitBuf& operator=(       UnitBuf&& other ) = default;

  // conversion from UnitBuf<const T> to UnitBuf<T>
  template<bool T_IS_COST = std::is_const<T>::value>
  UnitBuf( const UnitBuf<typename std::remove_const<T>::type>& other, std::enable_if<T_IS_COST>* = 0 ) : chromaFormat( other.chromaFormat ), bufs( other.bufs.begin(), other.bufs.end() ) { }

        AreaBuf<T>& get( const ComponentID comp )        { return bufs[comp]; }
  const AreaBuf<T>& get( const ComponentID comp )  const { return bufs[comp]; }

        AreaBuf<T>& Y()        { return bufs[0]; }
  const AreaBuf<T>& Y()  const { return bufs[0]; }
        AreaBuf<T>& Cb()       { return bufs[1]; }
  const AreaBuf<T>& Cb() const { return bufs[1]; }
        AreaBuf<T>& Cr()       { return bufs[2]; }
  const AreaBuf<T>& Cr() const { return bufs[2]; }
  bool valid          () const { return bufs.size() != 0; }

  void fill                 ( const T& val );
  void copyFrom             ( const UnitBuf<const T> &other, const bool luma = true, const bool chroma = true );
  void reconstruct          ( const UnitBuf<const T>& pred, const UnitBuf<const T>& resi, const ClpRngs& clpRngs );
  void copyClip             ( const UnitBuf<const T> &src, const ClpRngs& clpRngs, const bool lumaOnly = false, const bool chromaOnly = false );
  void subtract             ( const UnitBuf<const T>& minuend, const UnitBuf<const T>& subtrahend );
  void addAvg               ( const UnitBuf<const T>& other1, const UnitBuf<const T>& other2, const ClpRngs& clpRngs, const bool chromaOnly = false, const bool lumaOnly = false);
  void addWeightedAvg       ( const UnitBuf<const T>& other1, const UnitBuf<const T>& other2, const ClpRngs& clpRngs, const uint8_t BcwIdx = BCW_DEFAULT, const bool chromaOnly = false, const bool lumaOnly = false);
  void padBorderPel         ( unsigned margin, int dir );
  void extendBorderPel      ( unsigned margin, bool scale = false);
  void extendBorderPelTop   ( int x, int size, int margin );
  void extendBorderPelBot   ( int x, int size, int margin );
  void extendBorderPelLft   ( int y, int size, int margin );
  void extendBorderPelRgt   ( int y, int size, int margin );

  void removeHighFreq       ( const UnitBuf<const T>& other, const bool bClip, const ClpRngs& clpRngs);

        UnitBuf<      T> subBuf (const UnitArea& subArea);
  const UnitBuf<const T> subBuf (const UnitArea& subArea) const;
};

typedef UnitBuf<      Pel>  PelUnitBuf;
typedef UnitBuf<const Pel> CPelUnitBuf;

typedef UnitBuf<      TCoeff>  CoeffUnitBuf;
typedef UnitBuf<const TCoeff> CCoeffUnitBuf;

template<typename T>
void UnitBuf<T>::fill( const T &val )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    bufs[i].fill( val );
  }
}


template<typename T>
void UnitBuf<T>::copyFrom(const UnitBuf<const T> &other, const bool luma, const bool chroma)
{
  CHECK( chromaFormat != other.chromaFormat, "Incompatible formats" );
  CHECK( !luma && !chroma, "At least one channel has to be selected" );

  const size_t compStart = luma   ? 0           : 1;
  const size_t compEnd   = chroma ? bufs.size() : 1;

  for( size_t i = compStart; i < compEnd; i++ )
  {
    if( bufs[ i ].buf != nullptr && other.bufs[ i ].buf != nullptr )
      bufs[i].copyFrom( other.bufs[i] );
  }
}

template<typename T>
void UnitBuf<T>::subtract( const UnitBuf<const T>& minuend, const UnitBuf<const T>& subtrahend )
{
  CHECK( chromaFormat != minuend.chromaFormat, "Incompatible formats" );
  CHECK( chromaFormat != subtrahend.chromaFormat, "Incompatible formats");

  for( int i = 0; i < bufs.size(); i++ )
  {
    bufs[i].subtract( minuend.bufs[i], subtrahend.bufs[i] );
  }
}

template<typename T>
void UnitBuf<T>::copyClip(const UnitBuf<const T> &src, const ClpRngs &clpRngs, const bool lumaOnly, const bool chromaOnly)
{
  CHECK( chromaFormat != src.chromaFormat, "Incompatible formats" );

  CHECK(lumaOnly && chromaOnly, "Not allowed to have both lumaOnly and chromaOnly selected");
  const int compStart = chromaOnly ? 1 : 0;
  const int compEnd   = lumaOnly   ? 1 : ( int ) bufs.size();
  for( int i = compStart; i < compEnd; i++ )
  {
    bufs[i].copyClip( src.bufs[i], clpRngs[i] );
  }
}

template<typename T>
void UnitBuf<T>::reconstruct(const UnitBuf<const T>& pred, const UnitBuf<const T>& resi, const ClpRngs& clpRngs)
{
  CHECK( chromaFormat != pred.chromaFormat, "Incompatible formats" );
  CHECK( chromaFormat != resi.chromaFormat, "Incompatible formats" );

  for( int i = 0; i < bufs.size(); i++ )
  {
    bufs[i].reconstruct( pred.bufs[i], resi.bufs[i], clpRngs[i] );
  }
}

template<typename T>
void UnitBuf<T>::addAvg(const UnitBuf<const T>& other1, const UnitBuf<const T>& other2, const ClpRngs& clpRngs, const bool chromaOnly /* = false */, const bool lumaOnly /* = false */)
{
  const int istart = chromaOnly ? 1 : 0;
  const int iend   = lumaOnly   ? 1 : ( int ) bufs.size();

  CHECK( lumaOnly && chromaOnly, "should not happen" );

  for( int i = istart; i < iend; i++)
  {
    bufs[i].addAvg( other1.bufs[i], other2.bufs[i], clpRngs[i]);
  }
}

template<typename T>
void UnitBuf<T>::addWeightedAvg(const UnitBuf<const T>& other1, const UnitBuf<const T>& other2, const ClpRngs& clpRngs, const uint8_t BcwIdx /* = BCW_DEFAULT */, const bool chromaOnly /* = false */, const bool lumaOnly /* = false */)
{
  const int istart = chromaOnly ? 1 : 0;
  const int iend   = lumaOnly   ? 1 : ( int ) bufs.size();

  CHECK( lumaOnly && chromaOnly, "should not happen" );

  for ( int i = istart; i < iend; i++)
  {
    bufs[i].addWeightedAvg(other1.bufs[i], other2.bufs[i], clpRngs[i], BcwIdx);
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPelTop   ( int x, int size, int margin )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    int csx = getComponentScaleX(ComponentID(i), chromaFormat);
    int csy = getComponentScaleY(ComponentID(i), chromaFormat);
    bufs[i].extendBorderPelTop( x>>csx, size>>csx, margin>>csy );
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPelBot   ( int x, int size, int margin )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    int csx = getComponentScaleX(ComponentID(i), chromaFormat);
    int csy = getComponentScaleY(ComponentID(i), chromaFormat);
    bufs[i].extendBorderPelBot( x>>csx, size>>csx, margin>>csy );
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPelLft   ( int y, int size, int margin )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    int csx = getComponentScaleX(ComponentID(i), chromaFormat);
    int csy = getComponentScaleY(ComponentID(i), chromaFormat);
    bufs[i].extendBorderPelLft( y>>csy, size>>csy, margin>>csx );
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPelRgt   ( int y, int size, int margin )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    int csx = getComponentScaleX(ComponentID(i), chromaFormat);
    int csy = getComponentScaleY(ComponentID(i), chromaFormat);
    bufs[i].extendBorderPelRgt( y>>csy, size>>csy, margin>>csx );
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPel( unsigned margin, bool scaleMargin )
{
  if( ! scaleMargin )
  {
    for( int i = 0; i < bufs.size(); i++ )
    {
      bufs[i].extendBorderPel( margin, margin );
    }
  }
  else
  {
    for ( int i = 0; i < bufs.size(); i++)
    {
      bufs[i].extendBorderPel(margin >> getComponentScaleX(ComponentID(i), chromaFormat), margin >> getComponentScaleY(ComponentID(i), chromaFormat));
    }
  }
}

template<typename T>
void UnitBuf<T>::padBorderPel( unsigned margin, int dir )
{
  for( int i = 0; i < bufs.size(); i++ )
  {
    bufs[i].padBorderPel( margin >> getComponentScaleX( ComponentID( i ), chromaFormat ), margin >> getComponentScaleY( ComponentID( i ), chromaFormat ), dir );
  }
}

template<typename T>
void UnitBuf<T>::removeHighFreq( const UnitBuf<const T>& other, const bool bClip, const ClpRngs& clpRngs)
{
  bufs[0].removeHighFreq(other.bufs[0], bClip, clpRngs[0]);
}

template<typename T>
UnitBuf<T> UnitBuf<T>::subBuf( const UnitArea& subArea )
{
  UnitBuf<T> subBuf;
  subBuf.chromaFormat = chromaFormat;
  unsigned blockIdx = 0;

  for( auto &subAreaBuf : bufs )
  {
    subBuf.bufs.push_back( subAreaBuf.subBuf( subArea.blocks[blockIdx].pos(), subArea.blocks[blockIdx].size() ) );
    blockIdx++;
  }

  return subBuf;
}


template<typename T>
const UnitBuf<const T> UnitBuf<T>::subBuf( const UnitArea& subArea ) const
{
  UnitBuf<const T> subBuf;
  subBuf.chromaFormat = chromaFormat;
  unsigned blockIdx = 0;

  for( const auto &subAreaBuf : bufs )
  {
    subBuf.bufs.push_back( subAreaBuf.subBuf( subArea.blocks[blockIdx].pos(), subArea.blocks[blockIdx].size() ) );
    blockIdx++;
  }

  return subBuf;
}

// ---------------------------------------------------------------------------
// PelStorage struct (PelUnitBuf which allocates its own memory)
// ---------------------------------------------------------------------------

struct UnitArea;
struct CompArea;

struct PelStorage : public PelUnitBuf
{
  PelStorage();
  ~PelStorage();

  void swap( PelStorage& other );
  void createFromBuf( PelUnitBuf buf );
  void takeOwnership( PelStorage& other );
  void create( const UnitArea& _unit );
  void create( const ChromaFormat &_chromaFormat, const Area& _area );
  void create( const ChromaFormat &_chromaFormat, const Area& _area, const unsigned _maxCUSize, const unsigned _margin = 0, const unsigned _alignment = 0, const bool _scaleChromaMargin = true );
  void destroy();
  void compactResize( const UnitArea& area );

         PelBuf getBuf( const CompArea& blk );
  const CPelBuf getBuf( const CompArea& blk ) const;

         PelBuf getBuf( const ComponentID CompID );
  const CPelBuf getBuf( const ComponentID CompID ) const;

         PelUnitBuf getBuf( const UnitArea& unit );
  const CPelUnitBuf getBuf( const UnitArea& unit ) const;
               Pel* getOrigin( const int id ) const { return m_origin[id]; }

         PelUnitBuf getBuf(const int strY, const int strCb, const int strCr, const UnitArea& unit);
  const CPelUnitBuf getBuf(const int strY, const int strCb, const int strCr, const UnitArea& unit) const;

         PelUnitBuf getBufPart( const UnitArea& unit );
  const CPelUnitBuf getBufPart( const UnitArea& unit ) const;

         PelUnitBuf getCompactBuf(const UnitArea& unit);
  const CPelUnitBuf getCompactBuf(const UnitArea& unit) const;

         PelBuf     getCompactBuf(const CompArea& blk);
  const CPelBuf     getCompactBuf(const CompArea& blk) const;

private:

  UnitArea m_maxArea;
  Pel* m_origin[MAX_NUM_COMP];
};

struct CompStorage : public PelBuf
{
  ~CompStorage() { if( valid() ) delete[] m_memory; }

  void compactResize( const Size& size )
  {
    CHECK( size.area() > m_allocSize, "Resizing causes buffer overflow!" );
    Size::operator=( size );
    stride = size.width;
  }
  void create( const Size& size )
  {
    CHECK( m_memory, "Trying to re-create an already initialized buffer" );
    m_allocSize = size.area();
    m_memory = new Pel[m_allocSize];
    PelBuf::operator=( PelBuf( m_memory, size ) );
  }
  void destroy()
  {
    if( valid() ) delete[] m_memory;
    m_memory    = nullptr;
    m_allocSize = 0;
  }
  bool valid() { return m_memory != nullptr; }
private:
  ptrdiff_t m_allocSize = 0;
  Pel*      m_memory    = nullptr;
};

template<int NumEntries>
struct SortedPelUnitBufs
{
  void create(ChromaFormat cform, int maxWidth, int maxHeight)
  {
    m_pacBufs.resize(NumEntries + 1);
    m_acStorage.resize(NumEntries + 1);
    for (size_t i = 0; i <= NumEntries; i++)
    {
      m_acStorage[i].create(cform, Area(0, 0, maxWidth, maxHeight));
    }
  }

  void destroy()
  {
    for (size_t i = 0; i <= NumEntries; i++)
    {
      m_acStorage[i].destroy();
    }
  }

  void reset()
  {
    m_sortedList.clear();
  }

  void reduceTo(int numModes)
  {
    CHECK( numModes > m_sortedList.size(), "not enough buffers");
    m_sortedList.resize(numModes);
  }

  void prepare( const UnitArea& ua, int numModes)
  {
    CHECK( numModes > NumEntries, "not enough buffers");
    m_sortedList.resize(numModes);
    for (size_t i = 0; i < numModes; i++)
    {
      m_pacBufs[i] = m_acStorage[i].getCompactBuf(ua);
      m_sortedList[i] = &m_pacBufs[i];
    }

    m_pacBufs[numModes] = m_acStorage[numModes].getCompactBuf(ua);
    m_TestBuf = &m_pacBufs[numModes];
  }

  PelUnitBuf* getBufFromSortedList( int idx)              const { return m_sortedList.size() > idx ? m_sortedList[idx]: nullptr; }
  PelBuf&     getTestBuf          ( ComponentID compId)   const { return m_TestBuf->bufs[compId]; }
  PelUnitBuf& getTestBuf          ()                      const { return *m_TestBuf; }

  void swap( unsigned pos1, unsigned pos2 )
  {
    CHECK( pos1 >= m_sortedList.size(), "index out of range" );
    CHECK( pos2 >= m_sortedList.size(), "index out of range" );
    std::swap(m_sortedList[pos1], m_sortedList[pos2]);
  }

  void insert(int insertPos, int RdListSize)
  {
    if (insertPos != -1)
    {
      for (int i = RdListSize - 1; i > insertPos; i--)
      {
        std::swap(m_sortedList[i - 1], m_sortedList[i]);
      }
      std::swap(m_TestBuf, m_sortedList[insertPos]);
    }
  }

private:
  PelUnitBuf*                             m_TestBuf;
  static_vector<PelUnitBuf*,NumEntries>   m_sortedList;
  static_vector<PelUnitBuf, NumEntries+1> m_pacBufs;
  static_vector<PelStorage, NumEntries+1> m_acStorage;
};

struct Window;

void copyPadToPelUnitBuf( PelUnitBuf pelUnitBuf, const vvencYUVBuffer& yuvBuffer, const ChromaFormat& chFmt );
//void setupPelUnitBuf( const YUVBuffer& yuvBuffer, PelUnitBuf& pelUnitBuf, const ChromaFormat& chFmt );
void setupYuvBuffer ( const PelUnitBuf& pelUnitBuf, vvencYUVBuffer& yuvBuffer, const Window* confWindow );

} // namespace vvenc

//! \}


Coverage Report

Created: 2026-09-01 06:57