/* 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) 2010-2013, 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

/** \file     CommonDef.h
    \brief    Defines constants, macros and tool parameters
*/

#ifndef __COMMONDEF__
#define __COMMONDEF__

#include <algorithm>

#if _MSC_VER > 1000
// disable "signed and unsigned mismatch"
#pragma warning( disable : 4018 )
// disable bool coercion "performance warning"
#pragma warning( disable : 4800 )
#endif // _MSC_VER > 1000
#include "TypeDef.h"

//! \ingroup TLibCommon
//! \{

// ====================================================================================================================
// Version information
// ====================================================================================================================

#if H_MV
#define NV_VERSION        "0.3"                 ///< Current software version
#define HM_VERSION        "10.1"                ///< 
#else
#define NV_VERSION        "10.1"                 ///< Current software version
#endif

// ====================================================================================================================
// Platform information
// ====================================================================================================================

#ifdef __GNUC__
#define NVM_COMPILEDBY  "[GCC %d.%d.%d]", __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__
#ifdef __IA64__
#define NVM_ONARCH    "[on 64-bit] "
#else
#define NVM_ONARCH    "[on 32-bit] "
#endif
#endif

#ifdef __INTEL_COMPILER
#define NVM_COMPILEDBY  "[ICC %d]", __INTEL_COMPILER
#elif  _MSC_VER
#define NVM_COMPILEDBY  "[VS %d]", _MSC_VER
#endif

#ifndef NVM_COMPILEDBY
#define NVM_COMPILEDBY "[Unk-CXX]"
#endif

#ifdef _WIN32
#define NVM_ONOS        "[Windows]"
#elif  __linux
#define NVM_ONOS        "[Linux]"
#elif  __CYGWIN__
#define NVM_ONOS        "[Cygwin]"
#elif __APPLE__
#define NVM_ONOS        "[Mac OS X]"
#else
#define NVM_ONOS "[Unk-OS]"
#endif

#define NVM_BITS          "[%d bit] ", (sizeof(void*) == 8 ? 64 : 32) ///< used for checking 64-bit O/S

#ifndef NULL
#define NULL              0
#endif

// ====================================================================================================================
// Common constants
// ====================================================================================================================

#define _SUMMARY_OUT_               0           ///< print-out PSNR results of all slices to summary.txt
#define _SUMMARY_PIC_               0           ///< print-out PSNR results for each slice type to summary.txt

#define MAX_GOP                     64          ///< max. value of hierarchical GOP size

#define MAX_NUM_REF_PICS            16          ///< max. number of pictures used for reference
#define MAX_NUM_REF                 16          ///< max. number of entries in picture reference list
#if !L0034_COMBINED_LIST_CLEANUP
#define MAX_NUM_REF_LC              MAX_NUM_REF_PICS  // TODO: remove this macro definition (leftover from combined list concept)
#endif

#define MAX_UINT                    0xFFFFFFFFU ///< max. value of unsigned 32-bit integer
#define MAX_INT                     2147483647  ///< max. value of signed 32-bit integer
#if H_3D
#define MIN_INT                     (-2147483647-1) // < min. value of signed 32-bit integer
#endif
#define MAX_INT64                   0x7FFFFFFFFFFFFFFFLL  ///< max. value of signed 64-bit integer
#define MAX_DOUBLE                  1.7e+308    ///< max. value of double-type value

#define MIN_QP                      0
#define MAX_QP                      51

#define NOT_VALID                   -1

// ====================================================================================================================
// Macro functions
// ====================================================================================================================
extern Int g_bitDepthY;
extern Int g_bitDepthC;

/** clip x, such that 0 <= x <= #g_maxLumaVal */
template <typename T> inline T ClipY(T x) { return std::min<T>(T((1 << g_bitDepthY)-1), std::max<T>( T(0), x)); }
template <typename T> inline T ClipC(T x) { return std::min<T>(T((1 << g_bitDepthC)-1), std::max<T>( T(0), x)); }

/** clip a, such that minVal <= a <= maxVal */
template <typename T> inline T Clip3( T minVal, T maxVal, T a) { return std::min<T> (std::max<T> (minVal, a) , maxVal); }  ///< general min/max clip

#define DATA_ALIGN                  1                                                                 ///< use 32-bit aligned malloc/free
#if     DATA_ALIGN && _WIN32 && ( _MSC_VER > 1300 )
#define xMalloc( type, len )        _aligned_malloc( sizeof(type)*(len), 32 )
#define xFree( ptr )                _aligned_free  ( ptr )
#else
#define xMalloc( type, len )        malloc   ( sizeof(type)*(len) )
#define xFree( ptr )                free     ( ptr )
#endif

#define FATAL_ERROR_0(MESSAGE, EXITCODE)                      \
{                                                             \
  printf(MESSAGE);                                            \
  exit(EXITCODE);                                             \
}

#if H_MV

#define AOF( exp )                  \
{                                   \
  if( !( exp ) )                    \
{                                 \
  assert( 0 );                    \
}                                 \
}

#define AOT( exp )            \
{                             \
  if( ( exp ) )               \
{                           \
  assert( 0 );              \
}                           \
}

#if H_3D_IV_MERGE
#define ROFVS( exp )          \
{                             \
  if( !( exp ) )              \
{                           \
  return;                   \
}                           \
}

#define ROTVS( exp )          \
{                             \
  if( ( exp ) )               \
{                           \
  return;                   \
}                           \
}

#define ROTRS( exp, retVal )  \
{                             \
  if( ( exp ) )               \
{                           \
  return retVal;            \
}                           \
}

#define ROFRS( exp, retVal )  \
{                             \
  if( !( exp ) )              \
{                           \
  return retVal;            \
}                           \
}
#endif
template <typename T>
__inline T gSign(const T& t)
{
  if( t == 0 )
    return T(0);
  else
    return (t < 0) ? T(-1) : T(1);
}

#define RemoveBitIncrement( exp ) ( exp >> ( g_bitDepthY - 8 ) )

#endif

// ====================================================================================================================
// Coding tool configuration
// ====================================================================================================================

// AMVP: advanced motion vector prediction
#define AMVP_MAX_NUM_CANDS          2           ///< max number of final candidates
#define AMVP_MAX_NUM_CANDS_MEM      3           ///< max number of candidates
// MERGE
#define MRG_MAX_NUM_CANDS           5
#if H_3D_IV_MERGE
#define MRG_MAX_NUM_CANDS_MEM       (MRG_MAX_NUM_CANDS+1) // one extra for inter-view motion prediction
#endif
// Reference memory management
#define DYN_REF_FREE                0           ///< dynamic free of reference memories

// Explicit temporal layer QP offset
#define MAX_TLAYER                  8           ///< max number of temporal layer
#define HB_LAMBDA_FOR_LDC           1           ///< use of B-style lambda for non-key pictures in low-delay mode

// Fast estimation of generalized B in low-delay mode
#define GPB_SIMPLE                  1           ///< Simple GPB mode
#if     GPB_SIMPLE
#define GPB_SIMPLE_UNI              1           ///< Simple mode for uni-direction
#endif

// Fast ME using smoother MV assumption
#define FASTME_SMOOTHER_MV          1           ///< reduce ME time using faster option

// Adaptive search range depending on POC difference
#define ADAPT_SR_SCALE              1           ///< division factor for adaptive search range

#define CLIP_TO_709_RANGE           0

// Early-skip threshold (encoder)
#define EARLY_SKIP_THRES            1.50        ///< if RD < thres*avg[BestSkipRD]


#define MAX_CHROMA_FORMAT_IDC      3

// TODO: Existing names used for the different NAL unit types can be altered to better reflect the names in the spec.
//       However, the names in the spec are not yet stable at this point. Once the names are stable, a cleanup 
//       effort can be done without use of macros to alter the names used to indicate the different NAL unit types.
enum NalUnitType
{
  NAL_UNIT_CODED_SLICE_TRAIL_N = 0,   // 0
  NAL_UNIT_CODED_SLICE_TRAIL_R,   // 1
  
  NAL_UNIT_CODED_SLICE_TSA_N,     // 2
  NAL_UNIT_CODED_SLICE_TLA_R,       // 3
  
  NAL_UNIT_CODED_SLICE_STSA_N,    // 4
  NAL_UNIT_CODED_SLICE_STSA_R,    // 5

  NAL_UNIT_CODED_SLICE_RADL_N,    // 6
  NAL_UNIT_CODED_SLICE_RADL_R,      // 7
  
  NAL_UNIT_CODED_SLICE_RASL_N,    // 8
  NAL_UNIT_CODED_SLICE_RASL_R,      // 9

  NAL_UNIT_RESERVED_VCL_N10,
  NAL_UNIT_RESERVED_VCL_R11,
  NAL_UNIT_RESERVED_VCL_N12,
  NAL_UNIT_RESERVED_VCL_R13,
  NAL_UNIT_RESERVED_VCL_N14,
  NAL_UNIT_RESERVED_VCL_R15,

  NAL_UNIT_CODED_SLICE_BLA_W_LP,    // 16
  NAL_UNIT_CODED_SLICE_BLA_W_RADL,  // 17
  NAL_UNIT_CODED_SLICE_BLA_N_LP,  // 18
  NAL_UNIT_CODED_SLICE_IDR_W_RADL,  // 19
  NAL_UNIT_CODED_SLICE_IDR_N_LP,  // 20
  NAL_UNIT_CODED_SLICE_CRA,       // 21
  NAL_UNIT_RESERVED_IRAP_VCL22,
  NAL_UNIT_RESERVED_IRAP_VCL23,

  NAL_UNIT_RESERVED_VCL24,
  NAL_UNIT_RESERVED_VCL25,
  NAL_UNIT_RESERVED_VCL26,
  NAL_UNIT_RESERVED_VCL27,
  NAL_UNIT_RESERVED_VCL28,
  NAL_UNIT_RESERVED_VCL29,
  NAL_UNIT_RESERVED_VCL30,
  NAL_UNIT_RESERVED_VCL31,

  NAL_UNIT_VPS,                   // 32
  NAL_UNIT_SPS,                   // 33
  NAL_UNIT_PPS,                   // 34
  NAL_UNIT_ACCESS_UNIT_DELIMITER, // 35
  NAL_UNIT_EOS,                   // 36
  NAL_UNIT_EOB,                   // 37
  NAL_UNIT_FILLER_DATA,           // 38
  NAL_UNIT_PREFIX_SEI,              // 39
  NAL_UNIT_SUFFIX_SEI,              // 40
  NAL_UNIT_RESERVED_NVCL41,
  NAL_UNIT_RESERVED_NVCL42,
  NAL_UNIT_RESERVED_NVCL43,
  NAL_UNIT_RESERVED_NVCL44,
  NAL_UNIT_RESERVED_NVCL45,
  NAL_UNIT_RESERVED_NVCL46,
  NAL_UNIT_RESERVED_NVCL47,
  NAL_UNIT_UNSPECIFIED_48,
  NAL_UNIT_UNSPECIFIED_49,
  NAL_UNIT_UNSPECIFIED_50,
  NAL_UNIT_UNSPECIFIED_51,
  NAL_UNIT_UNSPECIFIED_52,
  NAL_UNIT_UNSPECIFIED_53,
  NAL_UNIT_UNSPECIFIED_54,
  NAL_UNIT_UNSPECIFIED_55,
  NAL_UNIT_UNSPECIFIED_56,
  NAL_UNIT_UNSPECIFIED_57,
  NAL_UNIT_UNSPECIFIED_58,
  NAL_UNIT_UNSPECIFIED_59,
  NAL_UNIT_UNSPECIFIED_60,
  NAL_UNIT_UNSPECIFIED_61,
  NAL_UNIT_UNSPECIFIED_62,
  NAL_UNIT_UNSPECIFIED_63,
  NAL_UNIT_INVALID,
};

#if H_3D
//PICYUV
#define PICYUV_PAD         16

//RENDERER
#define REN_LUMA_MARGIN   ( g_uiMaxCUWidth + PICYUV_PAD )
#define REN_VDWEIGHT_PREC  8
#define REN_IS_FILLED     ( 1 << REN_VDWEIGHT_PREC )
#define REN_USED_PEL       ( (1 << g_bitDepthY) - 1 )
#define REN_UNUSED_PEL     0
#define REN_IS_HOLE        0


// CAMERA PARAMETERS
#define LOG2_DISP_PREC_LUT           2           ///< log2 of disparity precision used in integer disparity LUTs
#define STD_CAM_PARAMETERS_PRECISION 5        ///< quarter luma sample accuarcy for derived disparities (as default)

#if H_3D_IV_MERGE
 // GT: To be checked if all of this is still necessary. 
#define PDM_USE_FOR_IVIEW                 1
#define PDM_USE_FOR_INTER                 2
#define PDM_USE_FOR_MERGE                 4

#define MAX_VIEW_NUM                      10
#define PDM_SUBSAMPLING_EXP               2         // subsampling factor is 2^PDM_SUBSAMPLING_EXP
#define PDM_SUB_SAMP_EXP_X(Pdm)           ((Pdm)==1?PDM_SUBSAMPLING_EXP:0)
#define PDM_SUB_SAMP_EXP_Y(Pdm)           ((Pdm)==1?PDM_SUBSAMPLING_EXP:0)

#define PDM_INTERNAL_CALC_BIT_DEPTH       31        // bit depth for internal calculations (32 - 1 for signed values)
#define PDM_BITDEPTH_VIRT_DEPTH           15        // bit depth for virtual depth storage (16 - 1 for signed values)
#define PDM_LOG2_MAX_ABS_NORMAL_DISPARITY 8         // maximum absolute normal disparity = 256 (for setting accuracy)
#define PDM_VIRT_DEPTH_PRECISION          4         // must be greater than or equal to 2 (since MVs are given in quarter-pel units)

#define PDM_INTER_CALC_SHIFT              ( PDM_INTERNAL_CALC_BIT_DEPTH - PDM_BITDEPTH_VIRT_DEPTH )         // avoids overflow
#define PDM_LOG4_SCALE_DENOMINATOR        ( PDM_LOG2_MAX_ABS_NORMAL_DISPARITY + PDM_VIRT_DEPTH_PRECISION )  // accuracy of scaling factor
#define PDM_OFFSET_SHIFT                  ( PDM_LOG2_MAX_ABS_NORMAL_DISPARITY )                             // accuracy of offset

#endif
#endif // end of H_3D
//! \}

#endif // end of #ifndef  __COMMONDEF__