Buffer.h 30.3 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
/* The copyright in this software is being made available under the BSD
 * License, included below. This software may be subject to other third party
 * and contributor rights, including patent rights, and no such rights are
 * granted under this license.
 *
 * Copyright (c) 2010-2018, ITU/ISO/IEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

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

#ifndef __BUFFER__
#define __BUFFER__

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

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

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

#if ENABLE_SIMD_OPT_BUFFER
#ifdef TARGET_SIMD_X86

struct PelBufferOps
{
  PelBufferOps();

  void initPelBufOpsX86();
  template<X86_VEXT vext>
  void _initPelBufOpsX86();

  void ( *addAvg4 )       ( const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel *dst, int dstStride, int width, int height,            int 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,            int shift, int offset, 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, int 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, int shift, int offset, const ClpRng& clpRng, bool bClip );
71
#if JVET_L0256_BIO
72 73 74
  void(*addBIOAvg4)    (const Pel* src0, int src0Stride, const Pel* src1, int src1Stride, Pel *dst, int dstStride, const Pel *gradX0, const Pel *gradX1, const Pel *gradY0, const Pel*gradY1, int gradStride, int width, int height, int tmpx, int tmpy, int shift, int offset, const ClpRng& clpRng);
  void(*bioGradFilter) (Pel* pSrc, int srcStride, int width, int height, int gradStride, Pel* gradX, Pel* gradY);
  void(*calcBIOPar)    (const Pel* srcY0Temp, const Pel* srcY1Temp, const Pel* gradX0, const Pel* gradX1, const Pel* gradY0, const Pel* gradY1, int* dotProductTemp1, int* dotProductTemp2, int* dotProductTemp3, int* dotProductTemp5, int* dotProductTemp6, const int src0Stride, const int src1Stride, const int gradStride, const int widthG, const int heightG);
75 76
  void(*calcBlkGradient)(int sx, int sy, int    *arraysGx2, int     *arraysGxGy, int     *arraysGxdI, int     *arraysGy2, int     *arraysGydI, int     &sGx2, int     &sGy2, int     &sGxGy, int     &sGxdI, int     &sGydI, int width, int height, int unitSize);
#endif
77 78 79 80 81 82
#if ENABLE_SIMD_OPT_GBI
  void ( *removeWeightHighFreq8)  ( Pel* src0, int src0Stride, const Pel* src1, int src1Stride, int width, int height, int shift, int gbiWeight);
  void ( *removeWeightHighFreq4)  ( Pel* src0, int src0Stride, const Pel* src1, int src1Stride, int width, int height, int shift, int gbiWeight);
  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);
#endif
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116
};

extern PelBufferOps g_pelBufOP;

#endif
#endif

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

  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 )    { }

  operator AreaBuf<const T>() const { return AreaBuf<const T>( buf, stride, width, height ); }

  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> &other );
  void extendSingleBorderPel();
  void extendBorderPel      (  unsigned margin );
117 118 119 120
#if JVET_L0646_GBI
  void addWeightedAvg       ( const AreaBuf<const T> &other1, const AreaBuf<const T> &other2, const ClpRng& clpRng, const int8_t gbiIdx);
  void removeWeightHighFreq ( const AreaBuf<T>& other, const bool bClip, const ClpRng& clpRng, const int8_t iGbiWeight);
#endif
121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402
  void addAvg               ( const AreaBuf<const T> &other1, const AreaBuf<const T> &other2, const ClpRng& clpRng );
  void removeHighFreq       ( const AreaBuf<T>& other, const bool bClip, const ClpRng& clpRng);
  void updateHistogram      ( std::vector<int32_t>& hist ) const;

  T    meanDiff             ( const AreaBuf<const T> &other ) const;
  void subtract             ( const T val );

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

  void transposedFrom       ( const AreaBuf<const T> &other );

  void toLast               ( const ClpRng& clpRng );

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


#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>
void AreaBuf<T>::fill(const T &val)
{
  if( sizeof( T ) == 1 )
  {
    if( width == stride )
    {
      ::memset( buf, reinterpret_cast< const signed char& >( val ), width * height * sizeof( T ) );
    }
    else
    {
      T* dest = buf;
      size_t line = width * sizeof( T );

      for( unsigned y = 0; y < height; y++ )
      {
        ::memset( dest, reinterpret_cast< const signed char& >( val ), line );

        dest += stride;
      }
    }
  }
  else if( T( 0 ) == val )
  {
    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;
      }
    }
  }
  else
  {
    T* dest = buf;

#define FILL_INC        dest      += stride
#define FILL_OP( ADDR ) dest[ADDR] = val

    SIZE_AWARE_PER_EL_OP( FILL_OP, FILL_INC );

#undef FILL_INC
#undef FILL_OP
  }
}

template<typename T>
void AreaBuf<T>::memset( const int val )
{
  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++ )
    {
      ::memset( dest, val, line );

      dest += stride;
    }
  }
}

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

  CHECK( width  != other.width,  "Incompatible size" );
  CHECK( height != other.height, "Incompatible size" );

  if( buf == other.buf )
  {
    return;
  }

  if( width == stride && stride == other.stride )
  {
    memcpy( buf, other.buf, width * height * sizeof( T ) );
  }
  else
  {
          T* dst         = buf;
    const T* src         = other.buf;
    const unsigned srcStride = other.stride;

    for( unsigned y = 0; y < height; y++ )
    {
      memcpy( dst, src, width * sizeof( T ) );

      dst += stride;
      src += srcStride;
    }
  }
}


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

        T* dest =       buf;
  const T* subs = other.buf;

#define SUBS_INC        \
  dest +=       stride; \
  subs += other.stride; \

#define SUBS_OP( ADDR ) dest[ADDR] -= subs[ADDR]

  SIZE_AWARE_PER_EL_OP( SUBS_OP, SUBS_INC );

#undef SUBS_OP
#undef SUBS_INC
}

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 int shift, const int offset, bool bClip, const ClpRng& clpRng )
{
  THROW( "Type not supported" );
}

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

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

template<>
void AreaBuf<Pel>::toLast( const ClpRng& clpRng );

403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455
#if JVET_L0646_GBI
template<typename T>
void AreaBuf<T>::removeWeightHighFreq(const AreaBuf<T>& other, const bool bClip, const ClpRng& clpRng, const int8_t gbiWeight)
{
  const int8_t gbiWeightOther = g_GbiWeightBase - gbiWeight;
  const int8_t log2WeightBase = g_GbiLog2WeightBase;

  const Pel* src = other.buf;
  const int  srcStride = other.stride;

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

#if ENABLE_SIMD_OPT_GBI
  if(!bClip)
  {
    if(!(width & 7))
      g_pelBufOP.removeWeightHighFreq8(dst, dstStride, src, srcStride, width, height, 16, gbiWeight);
    else if(!(width & 3))
      g_pelBufOP.removeWeightHighFreq4(dst, dstStride, src, srcStride, width, height, 16, gbiWeight);
    else
      CHECK(true, "Not supported");
  }
  else
  {
#endif
    int normalizer = ((1 << 16) + (gbiWeight > 0 ? (gbiWeight >> 1) : -(gbiWeight >> 1))) / gbiWeight;
    int weight0 = normalizer << log2WeightBase;
    int weight1 = gbiWeightOther * normalizer;
#define REM_HF_INC  \
  src += srcStride; \
  dst += dstStride; \

#define REM_HF_OP_CLIP( ADDR ) dst[ADDR] = ClipPel<T>( (dst[ADDR]*weight0 - src[ADDR]*weight1 + (1<<15))>>16, clpRng )
#define REM_HF_OP( ADDR )      dst[ADDR] =             (dst[ADDR]*weight0 - src[ADDR]*weight1 + (1<<15))>>16

    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_GBI
  }
#endif
}
#endif
456

457 458 459 460 461 462 463 464 465
template<typename T>
void AreaBuf<T>::removeHighFreq( const AreaBuf<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;

466 467 468 469 470 471 472 473 474 475 476 477 478 479
#if ENABLE_SIMD_OPT_GBI && JVET_L0646_GBI
  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

480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
#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
499 500 501 502

#if ENABLE_SIMD_OPT_GBI && JVET_L0646_GBI
  }
#endif
503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665
}


template<typename T>
void AreaBuf<T>::updateHistogram( std::vector<int32_t>& hist ) const
{
  const T* data = buf;
  for( std::size_t y = 0; y < height; y++, data += stride )
  {
    for( std::size_t x = 0; x < width; x++ )
    {
      hist[ data[x] ]++;
    }
  }
}

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

  CHECK( ( w + 2 * margin ) > 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 < margin; x++ )
    {
      *( p - margin + 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 + margin );
  // p is now the (-margin, height-1)
  for( int y = 0; y < margin; y++ )
  {
    ::memcpy( p + ( y + 1 ) * s, p, sizeof( T ) * ( w + ( margin << 1 ) ) );
  }

  // pi is still (-marginX, height-1)
  p -= ( ( h - 1 ) * s );
  // pi is now (-marginX, 0)
  for( int y = 0; y < margin; y++ )
  {
    ::memcpy( p - ( y + 1 ) * s, p, sizeof( T ) * ( w + ( margin << 1 ) ) );
  }
}
template<typename T>
T AreaBuf<T>::meanDiff( const AreaBuf<const T> &other ) const
{
  int64_t acc = 0;

  CHECK( width  != other.width,  "Incompatible size" );
  CHECK( height != other.height, "Incompatible size" );

  const T* src1 =       buf;
  const T* src2 = other.buf;

#define MEAN_DIFF_INC   \
  src1 +=       stride; \
  src2 += other.stride; \

#define MEAN_DIFF_OP(ADDR) acc += src1[ADDR] - src2[ADDR]

  SIZE_AWARE_PER_EL_OP( MEAN_DIFF_OP, MEAN_DIFF_INC );

#undef MEAN_DIFF_INC
#undef MEAN_DIFF_OP

  return T( acc / area() );
}

#if ENABLE_SIMD_OPT_BUFFER && defined(TARGET_SIMD_X86)
template<> void AreaBuf<Pel>::subtract( const Pel val );
#endif

template<typename T>
void AreaBuf<T>::subtract( const T val )
{
  T* dst = buf;

#define OFFSET_INC       dst       += stride
#define OFFSET_OP(ADDR)  dst[ADDR] -= val

  SIZE_AWARE_PER_EL_OP( OFFSET_OP, OFFSET_INC );

#undef OFFSET_INC
#undef OFFSET_OP
}

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];
    }
  }
}


#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_COMPONENT> UnitBufBuffers;
  typedef static_vector<AreaBuf<const T>, MAX_NUM_COMPONENT> 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) } { }

  operator UnitBuf<const T>() const
  {
    return UnitBuf<const T>( chromaFormat, ConstUnitBufBuffers( bufs.begin(), 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]; }

  void fill                 ( const T &val );
  void copyFrom             ( const UnitBuf<const T> &other );
  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 );
  void subtract             ( const UnitBuf<const T> &other );
666 667 668
#if JVET_L0646_GBI
  void addWeightedAvg       ( const UnitBuf<const T> &other1, const UnitBuf<const T> &other2, const ClpRngs& clpRngs, const uint8_t gbiIdx = GBI_DEFAULT, const bool chromaOnly = false, const bool lumaOnly = false);
#endif
669 670 671
  void addAvg               ( const UnitBuf<const T> &other1, const UnitBuf<const T> &other2, const ClpRngs& clpRngs, const bool chromaOnly = false, const bool lumaOnly = false);
  void extendSingleBorderPel();
  void extendBorderPel      ( unsigned margin );
672
  void removeHighFreq       ( const UnitBuf<T>& other, const bool bClip, const ClpRngs& clpRngs
673 674 675
#if JVET_L0646_GBI
                            , const int8_t gbiWeight = g_GbiWeights[GBI_DEFAULT]
#endif
676
                            );
677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744

        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( unsigned i = 0; i < bufs.size(); i++ )
  {
    bufs[i].fill( val );
  }
}

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

  for( unsigned i = 0; i < bufs.size(); i++ )
  {
    bufs[i].copyFrom( other.bufs[i] );
  }
}



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

  for( unsigned i = 0; i < bufs.size(); i++ )
  {
    bufs[i].subtract( other.bufs[i] );
  }
}

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

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

745 746 747 748 749 750 751 752 753 754 755 756 757 758 759
#if JVET_L0646_GBI
template<typename T>
void UnitBuf<T>::addWeightedAvg(const UnitBuf<const T> &other1, const UnitBuf<const T> &other2, const ClpRngs& clpRngs, const uint8_t gbiIdx /* = GBI_DEFAULT */, const bool chromaOnly /* = false */, const bool lumaOnly /* = false */)
{
  const size_t istart = chromaOnly ? 1 : 0;
  const size_t iend = lumaOnly ? 1 : bufs.size();

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

  for(size_t i = istart; i < iend; i++)
  {
    bufs[i].addWeightedAvg(other1.bufs[i], other2.bufs[i], clpRngs.comp[i], gbiIdx);
  }
}
#endif
760

761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793
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 size_t istart = chromaOnly ? 1 : 0;
  const size_t iend   = lumaOnly   ? 1 : bufs.size();

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

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

template<typename T>
void UnitBuf<T>::extendSingleBorderPel()
{
  for( unsigned i = 0; i < bufs.size(); i++ )
  {
    bufs[i].extendSingleBorderPel();
  }
}

template<typename T>
void UnitBuf<T>::extendBorderPel( unsigned margin )
{
  for( unsigned i = 0; i < bufs.size(); i++ )
  {
    bufs[i].extendBorderPel( margin );
  }
}

template<typename T>
794
void UnitBuf<T>::removeHighFreq( const UnitBuf<T>& other, const bool bClip, const ClpRngs& clpRngs
795 796 797
#if JVET_L0646_GBI
                               , const int8_t gbiWeight
#endif
798
                               )
799
{
800 801
#if JVET_L0646_GBI 
  if(gbiWeight != g_GbiWeights[GBI_DEFAULT])
802
  {
803 804
    bufs[0].removeWeightHighFreq(other.bufs[0], bClip, clpRngs.comp[0], gbiWeight);
    return;
805
  }
806 807 808 809 810 811 812 813
  bufs[0].removeHighFreq(other.bufs[0], bClip, clpRngs.comp[0]);
#else
  for (unsigned i = 0; i <bufs.size(); i++)
  {
    bufs[i].removeHighFreq(other.bufs[i], bClip, clpRngs.comp[i]);
  }
#endif

814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883
}

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 create( const UnitArea &_unit );
  void create( const ChromaFormat &_chromaFormat, const Area& _area, const unsigned _maxCUSize = 0, const unsigned _margin = 0, const unsigned _alignment = 0, const bool _scaleChromaMargin = true );
  void destroy();

         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]; }

private:

  Pel *m_origin[MAX_NUM_COMPONENT];
};


#endif