source: 3DVCSoftware/branches/HTM-12.2-dev1-Mediatek/source/Lib/TLibCommon/TypeDef.h @ 1096

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/** \file     TypeDef.h
    \brief    Define basic types, new types and enumerations
*/

#ifndef _TYPEDEF__
#define _TYPEDEF__

//! \ingroup TLibCommon
//! \{
/////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////// EXTENSION SELECTION ///////////////////////////////////  
/////////////////////////////////////////////////////////////////////////////////////////

/* HEVC_EXT might be defined by compiler/makefile options.
   
   Linux makefiles support the following settings:   
   make             -> HEVC_EXT not defined    
   make HEVC_EXT=0  -> H_MV=0 H_3D=0   --> plain HM
   make HEVC_EXT=1  -> H_MV=1 H_3D=0   --> MV only 
   make HEVC_EXT=2  -> H_MV=1 H_3D=1   --> full 3D 
*/

#ifndef HEVC_EXT
#define HEVC_EXT                    2
#endif

#if ( HEVC_EXT < 0 )||( HEVC_EXT > 2 )
#error HEVC_EXT must be in the range of 0 to 2, inclusive. 
#endif

#define H_MV          ( HEVC_EXT != 0)
#define H_3D          ( HEVC_EXT == 2)

#define NTT_BUG_FIX_TK54    1
#define BUG_FIX_TK65        1

#define MTK_I0093           1
/////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////   MAJOR DEFINES   ///////////////////////////////////  
/////////////////////////////////////////////////////////////////////////////////////////

#if H_MV
#define H_MV_ENC_DEC_TRAC                 1  //< CU/PU level tracking
#endif

#if H_3D
#define H_3D_QTLPC                        1   // OL_QTLIMIT_PREDCODING_B0068 //JCT3V-B0068
                                              // HHI_QTLPC_RAU_OFF_C0160 JCT3V-C0160 change 2: quadtree limitation and predictive coding switched off in random access units 
                                              // MTK_TEX_DEP_PAR_G0055 Texture-partition-dependent depth partition. JCT3V-G0055

#define H_3D_VSO                          1   // VSO, View synthesis optimization, includes: 
                                              // HHI_VSO
                                              // HHI_VSO_LS_TABLE_M23714 enable table base Lagrange multiplier optimization
                                              // SAIT_VSO_EST_A0033, JCT3V-A0033 modification 3
                                              // LGE_WVSO_A0119
                                              // SCU_HS_VSD_BUGFIX_IMPROV_G0163
#define H_3D_NBDV                         1   // Neighboring block disparity derivation 
                                              // QC_JCT3V-A0097 
                                              // LGE_DVMCP_A0126
                                              // LGE_DVMCP_MEM_REDUCTION_B0135     
                                              // QC_SIMPLE_NBDV_B0047
                                              // FIX_LGE_DVMCP_B0133
                                              // QC_NBDV_LDB_FIX_C0055
                                              // MTK_SAIT_TEMPORAL_FIRST_ORDER_C0141_C0097
                                              // MTK_SIMPLIFY_DVTC_C0135           
                                              // QC_CU_NBDV_D0181
                                              // SEC_DEFAULT_DV_D0112
                                              // MTK_DVMCP_FIX_E0172       fix the mismatch between software and WD for DV derivation from DVMCP blocks, issue 2 in JCT3V-E0172
                                              // SEC_SIMPLIFIED_NBDV_E0142 Simplified NBDV, JCT3V-E0142 and JCT3V-E0190
                                              // MTK_NBDV_TN_FIX_E0172     fix the issue of DV derivation from the temporal neighboring blocks, issue 7 in JCT3V-E0172
                                              // MTK_TEXTURE_MRGCAND_BUGFIX_E0182  Bug fix for TEXTURE MERGING CANDIDATE     , JCT3V-E0182

#define H_3D_ARP                          1   // Advanced residual prediction (ARP), JCT3V-D0177
                                              // QC_MTK_INTERVIEW_ARP_F0123_F0108 JCT3V-F0123; JCT3V-F0108
                                              // SHARP_ARP_REF_CHECK_F0105        ARP reference picture selection and DPB check
                                              // LGE_ARP_CTX_F0161                JCT3V-F0161
                                              // MTK_ARP_FLAG_CABAC_SIMP_G0061 Use 2 context for ARP flag referring to only left neighbor block in JCT3V-G0061
                                              // MTK_ARP_REF_SELECTION_G0053 ARP Reference picture selection in JCT3V-G0053 
                                              // MTK_ALIGN_SW_WD_BI_PRED_ARP_H0085  Align the SW and WD for the bi-prediction ARP PUs by disallowing non-normative fast bi-prediction for ARP PUs, JCT3V-H0085
                                              // QC_I0051_ARP_SIMP          
                                              // SHARP_ARP_CHROMA_I0104     
                                              // MTK_I0072_IVARP_SCALING_FIX

#define H_3D_IC                           1   // Illumination Compensation, JCT3V-B0045, JCT3V-C0046, JCT3V-D0060
                                              // Unifying rounding offset, for IC part, JCT3V-D0135
                                              // Full Pel Interpolation for Depth, HHI_FULL_PEL_DEPTH_MAP_MV_ACC
                                              // SHARP_ILLUCOMP_REFINE_E0046
                                              // MTK_CLIPPING_ALIGN_IC_E0168       // To support simplify bi-prediction PU with identical motion checking, JCT3V-E0168
                                              // LGE_IC_CTX_F0160 //JCT3V-F0160
                                              // SEC_ONLY_TEXTURE_IC_F0151
                                              // MTK_IC_FLAG_CABAC_SIMP_G0061
                                              // SEC_IC_ARP_SIG_G0072, Disabling IC when ARP is enabled, option 1 in JCT3V-G0072, part 2 in JCT3V-G0121
                                              // MTK_LOW_LATENCY_IC_ENCODING_H0086  Low-latency IC encoding in JCT3V-H0086
                                              // MTK_LOW_LATENCY_IC_ENCODING_H0086_FIX  1  // Remove the global variables used in JCT3V-H0086
                                              // SEC_IC_NEIGHBOR_CLIP_I0080    // Clipping of neighboring sample position, JCT3V-I0080

#if H_3D_NBDV
#define H_3D_NBDV_REF                     1   // Depth oriented neighboring block disparity derivation
                                              // MTK_D0156
                                              // MERL_D0166: Reference view selection in NBDV & Bi-VSP
                                              // MERL_C0152: Basic VSP
                                              // NBDV_DEFAULT_VIEWIDX_BUGFIX Bug fix for invalid default view index for NBDV
                                              // NTT_DoNBDV_VECTOR_CLIP_E0141 disparity vector clipping in DoNBDV, JCT3V-E0141 and JCT3V-E0209
                                              // SEC_VER_DONBDV_H0103          Vertical DV Restriction for DoNBDV
#endif

#define H_3D_VSP                          1   // View synthesis prediction
                                              // MERL_C0152: Basic VSP
                                              // MERL_D0166: Reference view selection in NBDV & Bi-VSP
                                              // MTK_D0105, LG_D0139: No VSP for depth
                                              // QC_D0191: Clean up
                                              // LG_D0092: Multiple VSP candidate allowed
                                              // MTK_VSP_FIX_ALIGN_WD_E0172
                                              // NTT_VSP_ADAPTIVE_SPLIT_E0207 adaptive sub-PU partitioning in VSP, JCT3V-E0207
                                              // NTT_VSP_DC_BUGFIX_E0208 bugfix for sub-PU based DC in VSP, JCT3V-E0208
                                              // NTT_VSP_COMMON_E0207_E0208 common part of JCT3V-E0207 and JCT3V-E0208
                                              // MTK_F0109_LG_F0120_VSP_BLOCK MTK_LG_SIMPLIFY_VSP_BLOCK_PARTITION_F0109_F0120  
                                              // SHARP_VSP_BLOCK_IN_AMP_F0102 VSP partitioning for AMP
                                              // MTK_VSP_SIMPLIFICATION_F0111 1. Inherited VSP also use NBDV of current CU, 2. VSP cannot be inherited from above LCU rowss
                                              // LGE_SHARP_VSP_INHERIT_F0104 
                                              // NTT_STORE_SPDV_VSP_G0148 Storing Sub-PU based DV for VSP
                                              // Restricted bi-prediction for VSP

#define H_3D_IV_MERGE                     1   // Inter-view motion merge candidate
                                              // HHI_INTER_VIEW_MOTION_PRED 
                                              // SAIT_IMPROV_MOTION_PRED_M24829, improved inter-view motion vector prediction
                                              // QC_MRG_CANS_B0048             , JCT3V-B0048, B0086, B0069
                                              // OL_DISMV_POS_B0069            , different pos for disparity MV candidate, B0069
                                              // MTK_INTERVIEW_MERGE_A0049     , second part
                                              // QC_AMVP_MRG_UNIFY_IVCAN_C0051     
                                              // TEXTURE MERGING CANDIDATE     , JCT3V-C0137
                                              // QC_INRIA_MTK_MRG_E0126 
                                              // ETRIKHU_MERGE_REUSE_F0093 QC_DEPTH_IV_MRG_F0125, JCT3V-F0125: Depth oriented Inter-view MV candidate
                                              // EC_MPI_ENABLING_MERGE_F0150, MPI flag in VPS and enabling in Merge mode
                                              // MTK_NBDV_IVREF_FIX_G0067      , Disable IvMC, VSP when IVREF is not available, JCT3V-G0067
                                              // SEC_DEPTH_DV_DERIVAITON_G0074, Simplification of DV derivation for depth, JCT3V-G0074
                                              // QC_DEPTH_MERGE_SIMP_G0127 Remove DV candidate and shifting candidate for depth coding
                                              // QC_IV_PRED_CONSTRAINT_H0137   Constraint on inter-view (motion) prediction tools
                                              // ETRIKHU_BUGFIX_H0083          bug-fix for DV candidate pruning
                                              // ETRIKHU_CLEANUP_H0083         cleaned-up source code for constructing merging candidate list
                                              // ETRIKHU_CLEANUP_H0083_MISSING missing guard macros added by GT
                                              // SHARP_SIMPLE_MERGE_H0062      Restrict 3D-HEVC merge cand in small PUs
                                              // MTK_DIS_SPBIP8X4_H0205        Disable bi-prediction for 8x4 and 4x8 sub PU and remove the SPIVMP 2Nx2N restriction
                                              // SEC_ADAPT_DISABLE_IVMP        Disabling IVMP merge candidates when IC is enabled, JCT3V-H0070
                                              // SEC_SIMP_SHIFTED_DV_I0086     Simplification of Shifted DV candidate, JCT3V-I0086
#define MTK_MRG_LIST_SIZE_CLEANUP_J0059   1   // Include VSP for deriving merge candidate list size, JCT3V-J0059


#define H_3D_TMVP                         1   // QC_TMVP_C0047 
                                              // Sony_M23639

#define H_3D_DIM                          1   // DIM, Depth intra modes, includes:
                                              // HHI_DMM_WEDGE_INTRA
                                              // HHI_DMM_PRED_TEX
                                              // FIX_WEDGE_NOFLOAT_D0036
                                              // LGE_EDGE_INTRA_A0070
                                              // LGE_DMM3_SIMP_C0044
                                              // QC_DC_PREDICTOR_D0183
                                              // HHI_DELTADC_DLT_D0035
                                              // PKU_QC_DEPTH_INTRA_UNI_D0195
                                              // RWTH_SDC_DLT_B0036
                                              // INTEL_SDC64_D0193
                                              // RWTH_SDC_CTX_SIMPL_D0032
                                              // LGE_CONCATENATE_D0141
                                              // FIX_SDC_ENC_RD_WVSO_D0163
                                              // MTK_SAMPLE_BASED_SDC_D0110
                                              // SEC_DMM2_E0146_HHIFIX Removal of DMM2 from DMMs
                                              // ZJU_DEPTH_INTRA_MODE_E0204 Simplified Binarization for depth_intra_mode
                                              // KWU_SDC_SIMPLE_DC_E0117 Simplified DC calculation for SDC
                                              // SCU_HS_DMM4_REMOVE_DIV_E0242 DMM4 Division Removal
                                              // LGE_SDC_REMOVE_DC_E0158 Removal of DC mode from SDC
                                              // LGE_PKU_DMM3_OVERLAP_E0159_HHIFIX 1   Removal of overlap between DMM3 and DMM1
                                              // LGE_PRED_RES_CODING_DLT_DOMAIN_F0159 JCT3V-F0159
                                              // HHI_DIM_PREDSAMP_FIX_F0171
                                              // SEC_DMM3_RBC_F0147 Removal of DMM3 and RBC from DMMs
                                              // QC_DIM_DELTADC_UNIFY_F0132 Unify delta DC coding in depth intra modes
                                              // Unify intra SDC and inter SDC
                                              // QC_GENERIC_SDC_G0122 Generalize SDC to all depth intra modes
                                              // SCU_HS_DEPTH_DC_PRED_G0143
                                              // HS_TSINGHUA_SDC_SPLIT_G0111
                                              // QC_PKU_SDC_SPLIT_G0123 Intra SDC Split
                                              // HS_DMM_SDC_PREDICTOR_UNIFY_H0108  Unification of DMM and SDC predictor derivation
                                              // LGE_SIMP_DIM_NOT_PRESENT_FLAG_CODING_H0119_H0135  Use only one context for CABAC of dim_not_present_flag
                                              // QC_SIMP_DELTADC_CODING_H0131   Simplify detaDC entropy coding 
                                              // MTK_DMM_SIMP_CODE_H0092        Remove CABAC context for DMM1 mode coding
                                              // MTK_DELTA_DC_FLAG_ONE_CONTEXT_H0084_H0100_H0113 Use only one context for CABAC of delta_dc_flag as in JCTVC-H0084, JCTVC-H0100 and JCTVC-H0113
                                              // MTK_SDC_FLAG_FIX_H0095                          Remove conditional check of PCM flag based on SDC flag, JCTVC-H0095
                                              // SEC_NO_RESI_DLT_H0105    
                                              // MTK_DLT_CODING_FIX_H0091 
                                              // HS_DMM_SIGNALLING_I0120
                                              // SHARP_DMM1_I0110 // LUT size reduction for DMM1 proposed in JCT3V-I0110 
                                              // FAST_SDC_OFFSET_DECISION_I0084
                                              // SEPARATE_FLAG_I0085
                                              // H_3D_DELTA_DLT
                                              // RWTH_DLT_CLIP_I0057               1



#define H_3D_SINGLE_DEPTH                 1   // Single depth mode proposed in JCT3V-I0095
#define MTK_SINGLE_DEPTH_VPS_FLAG_J0060   1   // Add VPS control flags and remove slice header control flag for single depth, JCT3V-J0060

#define MTK_J0033                         1

#define H_3D_INTER_SDC                    1   // INTER SDC, Inter simplified depth coding
                                              // LGE_INTER_SDC_E0156 Enable inter SDC for depth coding
                                              // SEC_INTER_SDC_G0101 Improved inter SDC with multiple DC candidates

#define H_3D_SPIVMP                       1   // H_3D_SPIVMP    // JCT3V-F0110: Sub-PU level inter-view motion prediction
                                              // SEC_SPIVMP_MCP_SIZE_G0077, Apply SPIVMP only to 2Nx2N partition, JCT3V-G0077
                                              // QC_SPIVMP_MPI_G0119 Sub-PU level MPI merge candidate
                                              // Simplification on Sub-PU level temporal interview motion prediction
                                              // MPI_SUBPU_DEFAULT_MV_H0077_H0099_H0111_H0133

#define H_3D_DBBP                         1   // DBBP: Depth-based Block Partitioning and Merging
                                              // MTK_DBBP_AMP_REM_H0072   
                                              // RWTH_DBBP_NO_SPU_H0057   
                                              // SEC_DBBP_FILTERING_H0104 
                                              // MTK_DBBP_SIGNALING_H0094    
                                              // H_3D_FIX_DBBP_IVMP        Fix . Enable IVMP is always disabled, when DBBP is enabled. The original intention is to disable Sub-PU IVMP when DBBP is enabled, not to disable IVMP itself. 
                                              // SEC_DBBP_EXPLICIT_SIG_I0077       1   // Remove the partition derivation and signal dbbp_flag only when the partition mode is 2NxN/Nx2N, JCT3V-I0077
                                              // Disallow DBBP in 8x8 CU, JCT3V-I0078
                                              // SHARP_DBBP_SIMPLE_FLTER_I0109     1   // Simple condition and one dimensional filter for DBBP
                                              // SEC_DBBP_DMM4_THRESHOLD_I0076     Simplification of threshold derivation for DBBP and DMM4, JCT3V-I0076


#define H_3D_DDD                          1   // Disparity derived depth coding

#define H_3D_FCO                          0   // Flexible coding order for 3D
#if H_3D_FCO
#define H_3D_FCO                     1
#endif

#define H_3D_FAST_INTRA_SDC               1   // I0123

// OTHERS
                                              // MTK_SONY_PROGRESSIVE_MV_COMPRESSION_E0170 // Progressive MV Compression, JCT3V-E0170
#define H_3D_REN_MAX_DEV_OUT              0   // Output maximal possible shift deviation 
#define H_3D_FAST_TEXTURE_ENCODING        1   // Fast merge mode decision and early CU determination for texture component of dependent view, JCT3V-E0173
                                              // MTK_FAST_TEXTURE_ENCODING_E0173
#if H_3D_DIM
#define H_3D_FAST_DEPTH_INTRA             1   // Fast DMM and RBC Mode Selection
                                              // SCU_HS_FAST_DEPTH_INTRA_E0238_HHIFIX
#define MTK_DMM_SIM_J0035                 1
#endif

// Rate Control
#define KWU_FIX_URQ                       1
#define KWU_RC_VIEWRC_E0227               0  ///< JCT3V-E0227, view-wise target bitrate allocation
#define KWU_RC_MADPRED_E0227              0  ///< JCT3V-E0227, inter-view MAD prediction
#endif // H_3D



/////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////   DERIVED DEFINES ///////////////////////////////////  
/////////////////////////////////////////////////////////////////////////////////////////

// Fixes

///// ***** SINGLE DEPTH MODE *********
#if H_3D_SINGLE_DEPTH
#define SINGLE_DEPTH_MODE_CAND_LIST_SIZE            2 // size of the sample candidate list
#endif

///// ***** VIEW SYNTHESIS OPTIMIZAION *********
#if H_3D_VSO                                  
#define H_3D_VSO_DIST_INT                 1   // Allow negative synthesized view distortion change
#define H_3D_VSO_COLOR_PLANES             1   // Compute VSO distortion on color planes 
#define H_3D_VSO_EARLY_SKIP               1   // LGE_VSO_EARLY_SKIP_A0093, A0093 modification 4
#define H_3D_VSO_RM_ASSERTIONS            0   // Output VSO assertions
#define H_3D_VSO_SYNTH_DIST_OUT           0   // Output of synthesized view distortion instead of depth distortion in encoder output
#endif

////   ****** NEIGHBOURING BLOCK-BASED DISPARITY VECTOR  *********
#if H_3D_NBDV
#define DVFROM_LEFT                       0
#define DVFROM_ABOVE                      1
#define IDV_CANDS                         2
#endif

///// ***** ADVANCED INTERVIEW RESIDUAL PREDICTION *********
#if H_3D_ARP
#define H_3D_ARP_WFNR                     3
#endif

///// ***** DEPTH INTRA MODES *********
#if H_3D_DIM
                                              // HHI_DMM4_ENC_I0066
#define H_3D_DIM_DMM                      1   // Depth Modeling Modes
#define H_3D_DIM_SDC                      1   // Simplified Depth Coding method
#define H_3D_DIM_DLT                      1   // Depth Lookup Table

#define H_3D_DIM_ENC                      1   // Depth Intra encoder optimizations, includes:
                                              // HHI_DEPTH_INTRA_SEARCH_RAU_C0160
                                              // LG_ZEROINTRADEPTHRESI_A0087
#endif
///// ***** VIEW SYNTHESIS PREDICTION *********
#if H_3D_VSP
#define H_3D_VSP_BLOCKSIZE                4   // Supported values: 1, 2, and 4
#if H_3D_VSP_BLOCKSIZE == 1
#define H_3D_VSP_CONSTRAINED              1   // Constrained VSP @ 1x1
#else
#define H_3D_VSP_CONSTRAINED              0
#endif
#endif


///// ***** ILLUMATION COMPENSATION *********
#if H_3D_IC
#define IC_REG_COST_SHIFT                 7
#define IC_CONST_SHIFT                    5
#define IC_SHIFT_DIFF                     12
#define IC_LOW_LATENCY_ENCODING_THRESHOLD 0.1 // Threshold for low-latency IC encoding in JCT3V-H0086
#endif


///// ***** DEPTH BASED BLOCK PARTITIONING *********
#if H_3D_DBBP
#define DBBP_INVALID_SHORT                (-4)
#define DBBP_PACK_MODE               SIZE_2NxN
#endif


///// ***** FCO *********
#if H_3D_FCO
#define H_3D_FCO_VSP_DONBDV_E0163               1   // Adaptive depth reference for flexible coding order
#else
#define H_3D_FCO_VSP_DONBDV_E0163               0   // Adaptive depth reference for flexible coding order
#endif

#if H_3D
#define PPS_FIX_DEPTH                           1
#endif

/////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////   MV_HEVC HLS  //////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
// TBD: Check if integration is necessary. 
#define H_MV_HLS_PTL_LIMITS                  0
#define H_MV_HLS7_GEN                        0  // General changes (not tested)
#define H_MV_ALIGN_HM_15                     1  

// POC
// #define H_MV_HLS_7_POC_P0041_3            0 // (POC/P0041/POC reset) #3 It was remarked that we should require each non-IRAP picture that has discardable_flag equal to 1 to have NUT value indicating that it is a sub-layer non-reference picture. This was agreed. Decision: Adopt (with constraint for discardable_flag as described above) 
// #define H_MV_HLS_7_POC_P0041_FIXES        0 // (POC/P0041/Fixes) For each non-IRAP picture that has discardable_flag equal to 1 to have NUT value indicating that it is a sub-layer non-reference picture. 
// #define H_MV_HLS_7_POC_P0056_4            0 // (POC/P0056/layer tree poc) #4 Proposal 1: If the POC reset approach is adopted as the basis for multi-layer POC derivation, it is proposed to derive the POC anchor picture from the previous TID0 picture (that is not a RASL picture, a RADL picture or a sub-layer non-reference picture and not with discardable_flag equal to 1) of  the current layer or any of its reference layer. This is asserted to improve loss resilience and reduce bit rate overhead. Decision: Adopt Proposal 1 (with the suggested modifications Ewith text provided as P0297).

// SEI related
//#define H_MV_HLS_8_SEI_NODOC_53  0 // #53 (SEI    /NODOC/Added Multiview view position SEI message) Plain copy from AVC.
//#define H_MV_HLS_8_SEI_NODOC_52  0 // #52 (SEI    /NODOC/Added Multiview acquisition information SEI) Plain copy from AVC. 
//#define H_MV_HLS_8_SEI_NODOC_51  0 // #51 (SEI    /NODOC/Added Multiview scene information SEI message)
//#define H_MV_HLS_8_SEI_Q0189_35  0 // #35 (SEI    /Q0189/SEI message for indicating constraints on TMVP) Proposal 2.3,  SEI message for indicating constraints on TMVP
//#define H_MV_HLS_8_EDF_Q0116_29  0 // #29 (ED.FIX /Q0116/Recovery point SEI) , consider adding a note regarding how random accessibility is affected by the recovery point SEI message
//#define H_MV_HLS_8_GEN_Q0183_23  0 // #23 (GEN    /Q0183/SEI clean-ups) numerous small clean-ups on SEI messages.
//#define H_MV_HLS_8_MIS_Q0247_49  0 // #49 (MISC   /Q0247/frame-field information SEI message)
//#define H_MV_HLS_8_MIS_Q0189_34  0 // #34 (MISC   /Q0189/slice temporal mvp enabled flag) Proposal 2.2, clarification of semantics of slice temporal mvp enabled flag
//#define H_MV_HLS_8_EDF_Q0081_01  0 // #1  (ED.FIX /Q0081/alpha channel persist) On reuse of alpha planes in auxiliary pictures. It was asked why there would not be a presumption that the alpha channel content would simply persist, without needing the flag to indicate it. Decision (Ed.): Delegated to editors to clarify, as necessary, that the alpha channel content persists until cancelled or updated in output order.
//#define H_MV_HLS_8_SEI_Q0253_37  0 // #37 (SEI    /Q0253/layer not present), modified semantics of layers not present SEI message to correct bug introduced during editing 
//#define H_MV_HLS_8_SEI_Q0045_11  0 // #11 (SEI    /Q0045/Overlay) Proposal for an SEI message on selectable overlays. Decision: Adopt (modified for variable-length strings).
//#define H_MV_HLS_7_SEI_P0133_28  0 // (SEI/P0133/Recovery point SEI) #28 Decision: Adopt change to recover point semantics only (-v3)
//#define H_MV_HLS_7_SEI_P0123_25  0 // (SEI/P0123/Alpha channel info) #25 Add alpha channel information SEI message Decision: Adopt. Constrain the bit depth indicated to be equal to the coded bit depth of the aux picture. 

// DPB
//#define H_MV_HLS_8_HRD_Q0102_09  0 // #9  (HRD    /Q0102/NoOutputOfPriorPicsFlag) It was suggested that also the separate_colour_plane_flag should affect inference of NoOutputOfPriorPicsFlag. Decision (Ed.): Agreed (affects RExt text).
//#define H_MV_HLS_8_DBP_Q0154_38  0 // #38 (DBP    /Q0154/VPS DPB) Proposal in C.5.2.1: Add in the decoding process that when a new VPS is activated, all pictures in the DPB are marked as unused for reference
//#define H_MV_HLS_8_HRD_Q0154_10  0 // #10 (HRD    /Q0154/DPB Flushing and parameters) On picture flushing and DPB parameters Decision: Adopted (some details to be discussed further in BoG).
//#define H_MV_HLS_7_OTHER_P0187_1 0 // (OTHER/P0187/NoOutputOfPriorPicsFlag) #1 Inference of NoOutputOfPriorPicsFlag and proposes to take into account colour format and bit depth for the inference in addition to spatial resolution 

// OTHERS
//#define H_MV_HLS_8_HSB_Q0041_03  0 // #3  (HS     /Q0041/hybrid scalability) The proposed text was endorsed, with non-editorial open issues considered as follows ?// #define H_MV_HLS_7_OTHER_P0187_1          0 // (OTHER/P0187/NoOutputOfPriorPicsFlag) #1 Inference of NoOutputOfPriorPicsFlag and proposes to take into account colour format and bit depth for the inference in addition to spatial resolution 
//#define H_MV_HLS_8_MIS_Q0078_24  0 // #24 (MISC   /Q0078/scan and pic type) , Items 3 b,c and 4, clarifying which pictures in an output layer sets are applied the values of general_progressive_source_flag, general_interlaced_source_flag, general_non_packed_constraint_flag and general_frame_only_constraint_flag.
//#define H_MV_HLS_7_HRD_P0138_6   0 //     (HRD/P0138/HRD parameters for bitstreams excluding) #6 Decision: Adopt (as revised in updated contribution, with the specification of a flag in the BP SEI (HRD/P0192/sub-DPB) #12 Establish sub-DPBs based on the representation format indicated at the VPS level. It was suggested that the expressed shared capacity limit would need to be less than or equal to the sum of the individual capacity limits. Decision: Adopt as modified. Further study is encouraged on profile/level constraint selections. 

/////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////   HM RELATED DEFINES ////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////
#define HARMONIZE_GOP_FIRST_FIELD_COUPLE  1
#define FIX_FIELD_DEPTH                 1
#if H_MV
#define EFFICIENT_FIELD_IRAP            0
#else
#define EFFICIENT_FIELD_IRAP            1
#endif
#define ALLOW_RECOVERY_POINT_AS_RAP     1
#define BUGFIX_INTRAPERIOD              1
#define SAO_ENCODE_ALLOW_USE_PREDEBLOCK 1

#define SAO_SGN_FUNC 1

#define TILE_SIZE_CHECK 1

#define FIX1172 1 ///< fix ticket #1172

#define SETTING_PIC_OUTPUT_MARK     1
#define SETTING_NO_OUT_PIC_PRIOR    1
#define FIX_EMPTY_PAYLOAD_NAL       1
#define FIX_WRITING_OUTPUT          1
#define FIX_OUTPUT_EOS              1

#define FIX_POC_CRA_NORASL_OUTPUT   1

#define MAX_NUM_PICS_IN_SOP           1024

#define MAX_NESTING_NUM_OPS         1024
#define MAX_NESTING_NUM_LAYER       64

#if H_MV
#define MAX_VPS_NUM_HRD_PARAMETERS                1024
#else
#define MAX_VPS_NUM_HRD_PARAMETERS                1
#endif
#if H_MV
#define MAX_NUM_SUB_LAYERS                        7
#define MAX_NUM_SIGNALLED_PARTITIONING_SCHEMES    16
#endif
#define MAX_VPS_OP_SETS_PLUS1                     1024
#if H_MV
#define MAX_VPS_NUM_ADD_LAYER_SETS                1024
#define MAX_VPS_NUH_LAYER_ID_PLUS1  63
#define MAX_NUM_SCALABILITY_TYPES   16
#define ENC_CFG_CONSOUT_SPACE       29           
#else
#define MAX_VPS_NUH_RESERVED_ZERO_LAYER_ID_PLUS1  1
#endif


#define MAX_CPB_CNT                     32  ///< Upper bound of (cpb_cnt_minus1 + 1)
#if H_MV
#define MAX_NUM_LAYER_IDS               63
#define MAX_NUM_LAYERS                  63
#define MAX_VPS_PROFILE_TIER_LEVEL      64
#define MAX_VPS_ADD_OUTPUT_LAYER_SETS   1024
#define MAX_VPS_OUTPUTLAYER_SETS        ( MAX_VPS_ADD_OUTPUT_LAYER_SETS + MAX_VPS_OP_SETS_PLUS1 + MAX_VPS_OP_SETS_PLUS1 )
#define  MAX_NUM_VIDEO_SIGNAL_INFO      16
#define MAX_NUM_SCALED_REF_LAYERS       MAX_NUM_LAYERS-1
#else
#define MAX_NUM_LAYER_IDS                64
#endif

#define COEF_REMAIN_BIN_REDUCTION        3 ///< indicates the level at which the VLC 
                                           ///< transitions from Golomb-Rice to TU+EG(k)

#define CU_DQP_TU_CMAX 5                   ///< max number bins for truncated unary
#define CU_DQP_EG_k 0                      ///< expgolomb order

#define SBH_THRESHOLD                    4  ///< I0156: value of the fixed SBH controlling threshold
  
#define SEQUENCE_LEVEL_LOSSLESS           0  ///< H0530: used only for sequence or frame-level lossless coding

#define DISABLING_CLIP_FOR_BIPREDME         1  ///< Ticket #175
  
#define C1FLAG_NUMBER               8 // maximum number of largerThan1 flag coded in one chunk :  16 in HM5
#define C2FLAG_NUMBER               1 // maximum number of largerThan2 flag coded in one chunk:  16 in HM5 
#define SAO_ENCODING_CHOICE              1  ///< I0184: picture early termination
#if SAO_ENCODING_CHOICE
#define SAO_ENCODING_RATE                0.75
#define SAO_ENCODING_CHOICE_CHROMA       1 ///< J0044: picture early termination Luma and Chroma are handled separately
#if SAO_ENCODING_CHOICE_CHROMA
#define SAO_ENCODING_RATE_CHROMA         0.5
#endif
#endif

#define MAX_NUM_VPS                16
#define MAX_NUM_SPS                16
#define MAX_NUM_PPS                64

#define RDOQ_CHROMA_LAMBDA          1   ///< F386: weighting of chroma for RDOQ

#define MIN_SCAN_POS_CROSS          4

#define FAST_BIT_EST                1   ///< G763: Table-based bit estimation for CABAC

#define MLS_GRP_NUM                         64     ///< G644 : Max number of coefficient groups, max(16, 64)
#define MLS_CG_SIZE                         4      ///< G644 : Coefficient group size of 4x4

#define ADAPTIVE_QP_SELECTION               1      ///< G382: Adaptive reconstruction levels, non-normative part for adaptive QP selection
#if ADAPTIVE_QP_SELECTION
#define ARL_C_PRECISION                     7      ///< G382: 7-bit arithmetic precision
#define LEVEL_RANGE                         30     ///< G382: max coefficient level in statistics collection
#endif

#define HHI_RQT_INTRA_SPEEDUP             1           ///< tests one best mode with full rqt
#define HHI_RQT_INTRA_SPEEDUP_MOD         0           ///< tests two best modes with full rqt

#if HHI_RQT_INTRA_SPEEDUP_MOD && !HHI_RQT_INTRA_SPEEDUP
#error
#endif

#define VERBOSE_RATE 0 ///< Print additional rate information in encoder

#define AMVP_DECIMATION_FACTOR            4

#define SCAN_SET_SIZE                     16
#define LOG2_SCAN_SET_SIZE                4

#define FAST_UDI_MAX_RDMODE_NUM               35          ///< maximum number of RD comparison in fast-UDI estimation loop 

#define ZERO_MVD_EST                          0           ///< Zero Mvd Estimation in normal mode

#define NUM_INTRA_MODE 36
#if !REMOVE_LM_CHROMA
#define LM_CHROMA_IDX  35
#endif

#define WRITE_BACK                      1           ///< Enable/disable the encoder to replace the deltaPOC and Used by current from the config file with the values derived by the refIdc parameter.
#define AUTO_INTER_RPS                  1           ///< Enable/disable the automatic generation of refIdc from the deltaPOC and Used by current from the config file.
#define PRINT_RPS_INFO                  0           ///< Enable/disable the printing of bits used to send the RPS.
                                                    // using one nearest frame as reference frame, and the other frames are high quality (POC%4==0) frames (1+X)
                                                    // this should be done with encoder only decision
                                                    // but because of the absence of reference frame management, the related code was hard coded currently

#define RVM_VCEGAM10_M 4

#define PLANAR_IDX             0
#define VER_IDX                26                    // index for intra VERTICAL   mode
#define HOR_IDX                10                    // index for intra HORIZONTAL mode
#define DC_IDX                 1                     // index for intra DC mode
#define NUM_CHROMA_MODE        5                     // total number of chroma modes
#define DM_CHROMA_IDX          36                    // chroma mode index for derived from luma intra mode


#define FAST_UDI_USE_MPM 1

#define RDO_WITHOUT_DQP_BITS              0           ///< Disable counting dQP bits in RDO-based mode decision

#define FULL_NBIT 0 ///< When enabled, compute costs using full sample bitdepth.  When disabled, compute costs as if it is 8-bit source video.
#if FULL_NBIT
# define DISTORTION_PRECISION_ADJUSTMENT(x) 0
#else
# define DISTORTION_PRECISION_ADJUSTMENT(x) (x)
#endif

#define LOG2_MAX_NUM_COLUMNS_MINUS1        7
#define LOG2_MAX_NUM_ROWS_MINUS1           7
#define LOG2_MAX_COLUMN_WIDTH              13
#define LOG2_MAX_ROW_HEIGHT                13

#define MATRIX_MULT                             0   // Brute force matrix multiplication instead of partial butterfly

#define REG_DCT 65535

#define AMP_SAD                               1           ///< dedicated SAD functions for AMP
#define AMP_ENC_SPEEDUP                       1           ///< encoder only speed-up by AMP mode skipping
#if AMP_ENC_SPEEDUP
#define AMP_MRG                               1           ///< encoder only force merge for AMP partition (no motion search for AMP)
#endif

#define CABAC_INIT_PRESENT_FLAG     1

// ====================================================================================================================
// Basic type redefinition
// ====================================================================================================================

typedef       void                Void;
typedef       bool                Bool;

#ifdef __arm__
typedef       signed char         Char;
#else
typedef       char                Char;
#endif
typedef       unsigned char       UChar;
typedef       short               Short;
typedef       unsigned short      UShort;
typedef       int                 Int;
typedef       unsigned int        UInt;
typedef       double              Double;
typedef       float               Float;

// ====================================================================================================================
// 64-bit integer type
// ====================================================================================================================

#ifdef _MSC_VER
typedef       __int64             Int64;

#if _MSC_VER <= 1200 // MS VC6
typedef       __int64             UInt64;   // MS VC6 does not support unsigned __int64 to double conversion
#else
typedef       unsigned __int64    UInt64;
#endif

#else

typedef       long long           Int64;
typedef       unsigned long long  UInt64;

#endif

// ====================================================================================================================
// Type definition
// ====================================================================================================================

typedef       UChar           Pxl;        ///< 8-bit pixel type
typedef       Short           Pel;        ///< 16-bit pixel type
typedef       Int             TCoeff;     ///< transform coefficient

#if H_3D_VSO
// ====================================================================================================================
// Define Distortion Types
// ====================================================================================================================
typedef       Int64           RMDist;     ///< renderer model distortion

#if H_3D_VSO_DIST_INT
typedef       Int64            Dist;       ///< RDO distortion
typedef       Int64            Dist64; 
#define       RDO_DIST_MIN     MIN_INT
#define       RDO_DIST_MAX     MAX_INT
#else
typedef       UInt             Dist;       ///< RDO distortion
typedef       UInt64           Dist; 
#define       RDO_DIST_MIN     0
#define       RDO_DIST_MAX     MAX_UINT
#endif
#endif
/// parameters for adaptive loop filter
class TComPicSym;

// Slice / Slice segment encoding modes
enum SliceConstraint
{
  NO_SLICES              = 0,          ///< don't use slices / slice segments
  FIXED_NUMBER_OF_LCU    = 1,          ///< Limit maximum number of largest coding tree blocks in a slice / slice segments
  FIXED_NUMBER_OF_BYTES  = 2,          ///< Limit maximum number of bytes in a slice / slice segment
  FIXED_NUMBER_OF_TILES  = 3,          ///< slices / slice segments span an integer number of tiles
};

enum SAOComponentIdx
{
  SAO_Y =0,
  SAO_Cb,
  SAO_Cr,
  NUM_SAO_COMPONENTS
};

enum SAOMode //mode
{
  SAO_MODE_OFF = 0,
  SAO_MODE_NEW,
  SAO_MODE_MERGE,
  NUM_SAO_MODES
};

enum SAOModeMergeTypes 
{
  SAO_MERGE_LEFT =0,
  SAO_MERGE_ABOVE,
  NUM_SAO_MERGE_TYPES
};


enum SAOModeNewTypes 
{
  SAO_TYPE_START_EO =0,
  SAO_TYPE_EO_0 = SAO_TYPE_START_EO,
  SAO_TYPE_EO_90,
  SAO_TYPE_EO_135,
  SAO_TYPE_EO_45,

  SAO_TYPE_START_BO,
  SAO_TYPE_BO = SAO_TYPE_START_BO,

  NUM_SAO_NEW_TYPES
};
#define NUM_SAO_EO_TYPES_LOG2 2

enum SAOEOClasses 
{
  SAO_CLASS_EO_FULL_VALLEY = 0,
  SAO_CLASS_EO_HALF_VALLEY = 1,
  SAO_CLASS_EO_PLAIN       = 2,
  SAO_CLASS_EO_HALF_PEAK   = 3,
  SAO_CLASS_EO_FULL_PEAK   = 4,
  NUM_SAO_EO_CLASSES,
};


#define NUM_SAO_BO_CLASSES_LOG2  5
enum SAOBOClasses
{
  //SAO_CLASS_BO_BAND0 = 0,
  //SAO_CLASS_BO_BAND1,
  //SAO_CLASS_BO_BAND2,
  //...
  //SAO_CLASS_BO_BAND31,

  NUM_SAO_BO_CLASSES = (1<<NUM_SAO_BO_CLASSES_LOG2),
};
#define MAX_NUM_SAO_CLASSES  32  //(NUM_SAO_EO_GROUPS > NUM_SAO_BO_GROUPS)?NUM_SAO_EO_GROUPS:NUM_SAO_BO_GROUPS

struct SAOOffset
{
  Int modeIdc; //NEW, MERGE, OFF
  Int typeIdc; //NEW: EO_0, EO_90, EO_135, EO_45, BO. MERGE: left, above
  Int typeAuxInfo; //BO: starting band index
  Int offset[MAX_NUM_SAO_CLASSES];

  SAOOffset();
  ~SAOOffset();
  Void reset();

  const SAOOffset& operator= (const SAOOffset& src);
};

struct SAOBlkParam
{

  SAOBlkParam();
  ~SAOBlkParam();
  Void reset();
  const SAOBlkParam& operator= (const SAOBlkParam& src);
  SAOOffset& operator[](Int compIdx){ return offsetParam[compIdx];}
private:
  SAOOffset offsetParam[NUM_SAO_COMPONENTS];

};

/// parameters for deblocking filter
typedef struct _LFCUParam
{
  Bool bInternalEdge;                     ///< indicates internal edge
  Bool bLeftEdge;                         ///< indicates left edge
  Bool bTopEdge;                          ///< indicates top edge
} LFCUParam;

// ====================================================================================================================
// Enumeration
// ====================================================================================================================

/// supported slice type
enum SliceType
{
  B_SLICE,
  P_SLICE,
  I_SLICE
};

/// chroma formats (according to semantics of chroma_format_idc)
enum ChromaFormat
{
  CHROMA_400  = 0,
  CHROMA_420  = 1,
  CHROMA_422  = 2,
  CHROMA_444  = 3
};

/// supported partition shape
enum PartSize
{
  SIZE_2Nx2N,           ///< symmetric motion partition,  2Nx2N
  SIZE_2NxN,            ///< symmetric motion partition,  2Nx N
  SIZE_Nx2N,            ///< symmetric motion partition,   Nx2N
  SIZE_NxN,             ///< symmetric motion partition,   Nx N
  SIZE_2NxnU,           ///< asymmetric motion partition, 2Nx( N/2) + 2Nx(3N/2)
  SIZE_2NxnD,           ///< asymmetric motion partition, 2Nx(3N/2) + 2Nx( N/2)
  SIZE_nLx2N,           ///< asymmetric motion partition, ( N/2)x2N + (3N/2)x2N
  SIZE_nRx2N,           ///< asymmetric motion partition, (3N/2)x2N + ( N/2)x2N
  SIZE_NONE = 15
};

/// supported prediction type
enum PredMode
{
  MODE_INTER,           ///< inter-prediction mode
  MODE_INTRA,           ///< intra-prediction mode
  MODE_NONE = 15
};

/// texture component type
enum TextType
{
  TEXT_LUMA,            ///< luma
  TEXT_CHROMA,          ///< chroma (U+V)
  TEXT_CHROMA_U,        ///< chroma U
  TEXT_CHROMA_V,        ///< chroma V
  TEXT_ALL,             ///< Y+U+V
  TEXT_NONE = 15
};

/// reference list index
enum RefPicList
{
  REF_PIC_LIST_0 = 0,   ///< reference list 0
  REF_PIC_LIST_1 = 1,   ///< reference list 1
  REF_PIC_LIST_X = 100  ///< special mark
};

/// distortion function index
enum DFunc
{
  DF_DEFAULT  = 0,
  DF_SSE      = 1,      ///< general size SSE
  DF_SSE4     = 2,      ///<   4xM SSE
  DF_SSE8     = 3,      ///<   8xM SSE
  DF_SSE16    = 4,      ///<  16xM SSE
  DF_SSE32    = 5,      ///<  32xM SSE
  DF_SSE64    = 6,      ///<  64xM SSE
  DF_SSE16N   = 7,      ///< 16NxM SSE
  
  DF_SAD      = 8,      ///< general size SAD
  DF_SAD4     = 9,      ///<   4xM SAD
  DF_SAD8     = 10,     ///<   8xM SAD
  DF_SAD16    = 11,     ///<  16xM SAD
  DF_SAD32    = 12,     ///<  32xM SAD
  DF_SAD64    = 13,     ///<  64xM SAD
  DF_SAD16N   = 14,     ///< 16NxM SAD
  
  DF_SADS     = 15,     ///< general size SAD with step
  DF_SADS4    = 16,     ///<   4xM SAD with step
  DF_SADS8    = 17,     ///<   8xM SAD with step
  DF_SADS16   = 18,     ///<  16xM SAD with step
  DF_SADS32   = 19,     ///<  32xM SAD with step
  DF_SADS64   = 20,     ///<  64xM SAD with step
  DF_SADS16N  = 21,     ///< 16NxM SAD with step
  
  DF_HADS     = 22,     ///< general size Hadamard with step
  DF_HADS4    = 23,     ///<   4xM HAD with step
  DF_HADS8    = 24,     ///<   8xM HAD with step
  DF_HADS16   = 25,     ///<  16xM HAD with step
  DF_HADS32   = 26,     ///<  32xM HAD with step
  DF_HADS64   = 27,     ///<  64xM HAD with step
  DF_HADS16N  = 28,     ///< 16NxM HAD with step
#if H_3D_VSO
  DF_VSD      = 29,      ///< general size VSD
  DF_VSD4     = 30,      ///<   4xM VSD
  DF_VSD8     = 31,      ///<   8xM VSD
  DF_VSD16    = 32,      ///<  16xM VSD
  DF_VSD32    = 33,      ///<  32xM VSD
  DF_VSD64    = 34,      ///<  64xM VSD
  DF_VSD16N   = 35,      ///< 16NxM VSD
#endif

#if AMP_SAD
  DF_SAD12    = 43,
  DF_SAD24    = 44,
  DF_SAD48    = 45,

  DF_SADS12   = 46,
  DF_SADS24   = 47,
  DF_SADS48   = 48,

  DF_SSE_FRAME = 50     ///< Frame-based SSE
#else
  DF_SSE_FRAME = 33     ///< Frame-based SSE
#endif
};

/// index for SBAC based RD optimization
enum CI_IDX
{
  CI_CURR_BEST = 0,     ///< best mode index
  CI_NEXT_BEST,         ///< next best index
  CI_TEMP_BEST,         ///< temporal index
  CI_CHROMA_INTRA,      ///< chroma intra index
  CI_QT_TRAFO_TEST,
  CI_QT_TRAFO_ROOT,
  CI_NUM,               ///< total number
};

/// motion vector predictor direction used in AMVP
enum MVP_DIR
{
  MD_LEFT = 0,          ///< MVP of left block
  MD_ABOVE,             ///< MVP of above block
  MD_ABOVE_RIGHT,       ///< MVP of above right block
  MD_BELOW_LEFT,        ///< MVP of below left block
  MD_ABOVE_LEFT         ///< MVP of above left block
};

/// merging candidates
#if H_3D
enum DefaultMergCandOrder
{
  MRG_T = 0,            ///< MPI
  MRG_D,                ///< DDD
  MRG_IVMC,             ///< Temporal inter-view
  MRG_A1,               ///< Left
  MRG_B1,               ///< Above
  MRG_B0,               ///< Above right
  MRG_IVDC,             ///< Disparity inter-view
  MRG_VSP,              ///< VSP
  MRG_A0,               ///< Left bottom
  MRG_B2,               ///< Above left
  MRG_IVSHIFT,          ///< Shifted IVMC of Shifted IVDC. (These are mutually exclusive)
  MRG_COL               ///< Temporal co-located
};
#endif

/// coefficient scanning type used in ACS
enum COEFF_SCAN_TYPE
{
  SCAN_DIAG = 0,         ///< up-right diagonal scan
  SCAN_HOR,              ///< horizontal first scan
  SCAN_VER               ///< vertical first scan
};

namespace Profile
{
  enum Name
  {
    NONE = 0,
    MAIN = 1,
    MAIN10 = 2,
    MAINSTILLPICTURE = 3,
#if H_MV
    MULTIVIEWMAIN = 6,
#if H_3D
    MAIN3D = 8, 
#endif
#endif
  };
}

namespace Level
{
  enum Tier
  {
    MAIN = 0,
    HIGH = 1,
  };

  enum Name
  {
    NONE     = 0,
    LEVEL1   = 30,
    LEVEL2   = 60,
    LEVEL2_1 = 63,
    LEVEL3   = 90,
    LEVEL3_1 = 93,
    LEVEL4   = 120,
    LEVEL4_1 = 123,
    LEVEL5   = 150,
    LEVEL5_1 = 153,
    LEVEL5_2 = 156,
    LEVEL6   = 180,
    LEVEL6_1 = 183,
    LEVEL6_2 = 186,
  };
}
//! \}

#if H_MV

/// scalability types
  enum ScalabilityType
  {
#if H_3D
    DEPTH_ID = 0,    
#endif    
    VIEW_ORDER_INDEX  = 1,
    DEPENDENCY_ID = 2,
    AUX_ID = 3,
  };
#endif
#if H_3D
  // Renderer
  enum BlenMod
  {
    BLEND_NONE  = -1,
    BLEND_AVRG  = 0,
    BLEND_LEFT  = 1,
    BLEND_RIGHT = 2,
    BLEND_GEN   =  3
  };

  
  enum
  {
    VIEWPOS_INVALID = -1,
    VIEWPOS_LEFT    = 0,
    VIEWPOS_RIGHT   = 1,
    VIEWPOS_MERGED  = 2
  };

#define Log2( n ) ( log((double)n) / log(2.0) ) // Ed.(GT): This is very very bad and should be fixed to used integer arithmetics ( see gCeilLog2 ) moreover it should not be defined in the tool macro section! 
#endif
#endif