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Diffstat (limited to 'third_party/libopenjpeg20/t1.h')
| -rw-r--r-- | third_party/libopenjpeg20/t1.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/third_party/libopenjpeg20/t1.h b/third_party/libopenjpeg20/t1.h new file mode 100644 index 0000000000..3bc0ad9ea7 --- /dev/null +++ b/third_party/libopenjpeg20/t1.h @@ -0,0 +1,167 @@ +/* + * The copyright in this software is being made available under the 2-clauses + * 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) 2002-2014, Universite catholique de Louvain (UCL), Belgium + * Copyright (c) 2002-2014, Professor Benoit Macq + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2007, Francois-Olivier Devaux + * Copyright (c) 2003-2014, Antonin Descampe + * Copyright (c) 2005, Herve Drolon, FreeImage Team + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * 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 OWNER 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. + */ +#ifndef __T1_H +#define __T1_H +/** +@file t1.h +@brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1) + +The functions in T1.C have for goal to realize the tier-1 coding operation. The functions +in T1.C are used by some function in TCD.C. +*/ + +/** @defgroup T1 T1 - Implementation of the tier-1 coding */ +/*@{*/ + +/* ----------------------------------------------------------------------- */ +#define T1_NMSEDEC_BITS 7 + +#define T1_SIG_NE 0x0001 /**< Context orientation : North-East direction */ +#define T1_SIG_SE 0x0002 /**< Context orientation : South-East direction */ +#define T1_SIG_SW 0x0004 /**< Context orientation : South-West direction */ +#define T1_SIG_NW 0x0008 /**< Context orientation : North-West direction */ +#define T1_SIG_N 0x0010 /**< Context orientation : North direction */ +#define T1_SIG_E 0x0020 /**< Context orientation : East direction */ +#define T1_SIG_S 0x0040 /**< Context orientation : South direction */ +#define T1_SIG_W 0x0080 /**< Context orientation : West direction */ +#define T1_SIG_OTH (T1_SIG_N|T1_SIG_NE|T1_SIG_E|T1_SIG_SE|T1_SIG_S|T1_SIG_SW|T1_SIG_W|T1_SIG_NW) +#define T1_SIG_PRIM (T1_SIG_N|T1_SIG_E|T1_SIG_S|T1_SIG_W) + +#define T1_SGN_N 0x0100 +#define T1_SGN_E 0x0200 +#define T1_SGN_S 0x0400 +#define T1_SGN_W 0x0800 +#define T1_SGN (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W) + +#define T1_SIG 0x1000 +#define T1_REFINE 0x2000 +#define T1_VISIT 0x4000 + +#define T1_NUMCTXS_ZC 9 +#define T1_NUMCTXS_SC 5 +#define T1_NUMCTXS_MAG 3 +#define T1_NUMCTXS_AGG 1 +#define T1_NUMCTXS_UNI 1 + +#define T1_CTXNO_ZC 0 +#define T1_CTXNO_SC (T1_CTXNO_ZC+T1_NUMCTXS_ZC) +#define T1_CTXNO_MAG (T1_CTXNO_SC+T1_NUMCTXS_SC) +#define T1_CTXNO_AGG (T1_CTXNO_MAG+T1_NUMCTXS_MAG) +#define T1_CTXNO_UNI (T1_CTXNO_AGG+T1_NUMCTXS_AGG) +#define T1_NUMCTXS (T1_CTXNO_UNI+T1_NUMCTXS_UNI) + +#define T1_NMSEDEC_FRACBITS (T1_NMSEDEC_BITS-1) + +#define T1_TYPE_MQ 0 /**< Normal coding using entropy coder */ +#define T1_TYPE_RAW 1 /**< No encoding the information is store under raw format in codestream (mode switch RAW)*/ + +/* ----------------------------------------------------------------------- */ + +typedef OPJ_INT16 opj_flag_t; + +/** +Tier-1 coding (coding of code-block coefficients) +*/ +typedef struct opj_t1 { + + /** MQC component */ + opj_mqc_t *mqc; + /** RAW component */ + opj_raw_t *raw; + + OPJ_INT32 *data; + opj_flag_t *flags; + OPJ_UINT32 w; + OPJ_UINT32 h; + OPJ_UINT32 datasize; + OPJ_UINT32 flagssize; + OPJ_UINT32 flags_stride; + OPJ_UINT32 data_stride; + OPJ_BOOL encoder; +} opj_t1_t; + +#define MACRO_t1_flags(x,y) t1->flags[((x)*(t1->flags_stride))+(y)] + +/** @name Exported functions */ +/*@{*/ +/* ----------------------------------------------------------------------- */ + +/** +Encode the code-blocks of a tile +@param t1 T1 handle +@param tile The tile to encode +@param tcp Tile coding parameters +@param mct_norms FIXME DOC +@param mct_numcomps Number of components used for MCT +*/ +OPJ_BOOL opj_t1_encode_cblks( opj_t1_t *t1, + opj_tcd_tile_t *tile, + opj_tcp_t *tcp, + const OPJ_FLOAT64 * mct_norms, + OPJ_UINT32 mct_numcomps); + +/** +Decode the code-blocks of a tile +@param t1 T1 handle +@param tilec The tile to decode +@param tccp Tile coding parameters +*/ +OPJ_BOOL opj_t1_decode_cblks( opj_t1_t* t1, + opj_tcd_tilecomp_t* tilec, + opj_tccp_t* tccp); + + + +/** + * Creates a new Tier 1 handle + * and initializes the look-up tables of the Tier-1 coder/decoder + * @return a new T1 handle if successful, returns NULL otherwise +*/ +opj_t1_t* opj_t1_create(OPJ_BOOL isEncoder); + +/** + * Destroys a previously created T1 handle + * + * @param p_t1 Tier 1 handle to destroy +*/ +void opj_t1_destroy(opj_t1_t *p_t1); +/* ----------------------------------------------------------------------- */ +/*@}*/ + +/*@}*/ + +#endif /* __T1_H */ |