174 lines
7.8 KiB
C
174 lines
7.8 KiB
C
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/*
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* Copyrigth (c) 2006, M<EFBFBD>nica D<EFBFBD>ez, LPI-UVA, Spain
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __T1_3D_H
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#define __T1_3D_H
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/**
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@file t1_3d.h
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@brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1)
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The functions in T1_3D.C have for goal to realize the tier-1 coding operation of 3D-EBCOT.
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The functions in T1_3D.C are used by some function in TCD.C.
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*/
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/** @defgroup T1_3D T1_3D - Implementation of the tier-1 coding */
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/*@{*/
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/* ----------------------------------------------------------------------- */
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/* Neighbourhood of 3D EBCOT (Significance context)*/
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#define T1_3D_SIG_NE 0x00000001 /*< Context orientation : North-East direction */
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#define T1_3D_SIG_SE 0x00000002 /*< Context orientation : South-East direction */
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#define T1_3D_SIG_SW 0x00000004 /*< Context orientation : South-West direction */
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#define T1_3D_SIG_NW 0x00000008 /* Context orientation : North-West direction */
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#define T1_3D_SIG_N 0x00000010 /*< Context orientation : North direction */
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#define T1_3D_SIG_E 0x00000020 /*< Context orientation : East direction */
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#define T1_3D_SIG_S 0x00000040 /*< Context orientation : South direction */
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#define T1_3D_SIG_W 0x00000080 /*< Context orientation : West direction */
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#define T1_3D_SIG_FC 0x00000100 /*< Context orientation : Forward Central direction */
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#define T1_3D_SIG_BC 0x00000200 /*< Context orientation : Backward Central direction */
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#define T1_3D_SIG_FNE 0x00000400 /*< Context orientation : Forward North-East direction */
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#define T1_3D_SIG_FSE 0x00000800 /*< Context orientation : Forward South-East direction */
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#define T1_3D_SIG_FSW 0x00001000 /*< Context orientation : Forward South-West direction */
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#define T1_3D_SIG_FNW 0x00002000 /*< Context orientation : Forward North-West direction */
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#define T1_3D_SIG_FN 0x00004000 /*< Context orientation : Forward North direction */
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#define T1_3D_SIG_FE 0x00008000 /*< Context orientation : Forward East direction */
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#define T1_3D_SIG_FS 0x00010000 /*< Context orientation : Forward South direction */
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#define T1_3D_SIG_FW 0x00020000 /*< Context orientation : Forward West direction */
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#define T1_3D_SIG_BNE 0x00040000 /*< Context orientation : Backward North-East direction */
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#define T1_3D_SIG_BSE 0x00080000 /*< Context orientation : Backward South-East direction */
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#define T1_3D_SIG_BSW 0x00100000 /*< Context orientation : Backward South-West direction */
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#define T1_3D_SIG_BNW 0x00200000 /*< Context orientation : Backward North-West direction */
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#define T1_3D_SIG_BN 0x00400000 /*< Context orientation : Backward North direction */
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#define T1_3D_SIG_BE 0x00800000 /*< Context orientation : Backward East direction */
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#define T1_3D_SIG_BS 0x01000000 /*< Context orientation : Backward South direction */
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#define T1_3D_SIG_BW 0x02000000 /*< Context orientation : Backward West direction */
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#define T1_3D_SIG_COTH (T1_3D_SIG_N|T1_3D_SIG_NE|T1_3D_SIG_E|T1_3D_SIG_SE|T1_3D_SIG_S|T1_3D_SIG_SW|T1_3D_SIG_W|T1_3D_SIG_NW)
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#define T1_3D_SIG_BOTH (T1_3D_SIG_BN|T1_3D_SIG_BNE|T1_3D_SIG_BE|T1_3D_SIG_BSE|T1_3D_SIG_BS|T1_3D_SIG_BSW|T1_3D_SIG_BW|T1_3D_SIG_BNW|T1_3D_SIG_BC)
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#define T1_3D_SIG_FOTH (T1_3D_SIG_FN|T1_3D_SIG_FNE|T1_3D_SIG_FE|T1_3D_SIG_FSE|T1_3D_SIG_FS|T1_3D_SIG_FSW|T1_3D_SIG_FW|T1_3D_SIG_FNW|T1_3D_SIG_FC)
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#define T1_3D_SIG_OTH (T1_3D_SIG_FOTH|T1_3D_SIG_BOTH|T1_3D_SIG_COTH)
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#define T1_3D_SIG_PRIM (T1_3D_SIG_N|T1_3D_SIG_E|T1_3D_SIG_S|T1_3D_SIG_W|T1_3D_SIG_FC|T1_3D_SIG_BC)
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#define T1_3D_SGN_N 0x0400
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#define T1_3D_SGN_E 0x0800
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#define T1_3D_SGN_S 0x1000
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#define T1_3D_SGN_W 0x2000
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#define T1_3D_SGN_F 0x4000
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#define T1_3D_SGN_B 0x8000
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#define T1_3D_SGN (T1_3D_SGN_N|T1_3D_SGN_E|T1_3D_SGN_S|T1_3D_SGN_W|T1_3D_SGN_F|T1_3D_SGN_B)
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#define T1_3D_SIG 0x0001 //Significance state
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#define T1_3D_REFINE 0x0002 //Delayed significance
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#define T1_3D_VISIT 0x0004 //First-pass membership
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#define T1_3D_NUMCTXS_AGG 1
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#define T1_3D_NUMCTXS_ZC 16
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#define T1_3D_NUMCTXS_MAG 3
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#define T1_3D_NUMCTXS_SC 6
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#define T1_3D_NUMCTXS_UNI 1
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#define T1_3D_CTXNO_AGG 0
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#define T1_3D_CTXNO_ZC (T1_3D_CTXNO_AGG+T1_3D_NUMCTXS_AGG) //1
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#define T1_3D_CTXNO_MAG (T1_3D_CTXNO_ZC+T1_3D_NUMCTXS_ZC) //17
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#define T1_3D_CTXNO_SC (T1_3D_CTXNO_MAG+T1_3D_NUMCTXS_MAG) //20
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#define T1_3D_CTXNO_UNI (T1_3D_CTXNO_SC+T1_3D_NUMCTXS_SC) //26
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#define T1_3D_NUMCTXS (T1_3D_CTXNO_UNI+T1_3D_NUMCTXS_UNI) //27
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/* ----------------------------------------------------------------------- */
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/**
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Tier-1 coding (coding of code-block coefficients)
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*/
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typedef struct opj_t1_3d {
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/** Codec context */
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opj_common_ptr cinfo;
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/** MQC component */
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opj_mqc_t *mqc;
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/** RAW component */
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opj_raw_t *raw;
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/** LUTs for decoding normalised MSE */
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int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS];
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int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS];
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int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS];
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int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS];
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/** Codeblock data */
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int data[T1_CBLKD][T1_CBLKH][T1_CBLKW];
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/** Context information for each voxel in codeblock */
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unsigned int flags[T1_CBLKD + 2][T1_CBLKH + 2][T1_CBLKH + 2];
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/** Voxel information (significance/visited/refined) */
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int flagSVR[T1_CBLKD + 2][T1_CBLKH + 2][T1_CBLKH + 2];
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} opj_t1_3d_t;
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/** @name Exported functions */
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/*@{*/
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/* ----------------------------------------------------------------------- */
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/**
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Create a new T1_3D handle
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and initialize the look-up tables of the Tier-1 coder/decoder
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@return Returns a new T1 handle if successful, returns NULL otherwise
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@see t1_init_luts
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*/
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opj_t1_3d_t* t1_3d_create(opj_common_ptr cinfo);
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/**
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Destroy a previously created T1_3D handle
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@param t1 T1_3D handle to destroy
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*/
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void t1_3d_destroy(opj_t1_3d_t *t1);
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/**
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Encode the code-blocks of a tile
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@param t1 T1_3D handle
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@param tile The tile to encode
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@param tcp Tile coding parameters
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*/
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void t1_3d_encode_cblks(opj_t1_3d_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp);
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/**
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Decode the code-blocks of a tile
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@param t1 T1_3D handle
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@param tile The tile to decode
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@param tcp Tile coding parameters
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*/
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void t1_3d_decode_cblks(opj_t1_3d_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp);
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/**
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Get weigths of MSE decoding
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@param nmsedec The normalized MSE reduction
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@param compno
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@param level
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@param orient
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@param bpno
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@param reversible
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@param stepsize
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@param numcomps
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@param dwtid
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returns MSE associated to decoding pass
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double t1_3d_getwmsedec(int nmsedec, int compno, int levelxy, int levelz, int orient, int bpno, int reversible, double stepsize, int numcomps, int dwtid);
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*/
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/* ----------------------------------------------------------------------- */
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/*@}*/
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/*@}*/
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#endif /* __T1_H */
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