1211 lines
30 KiB
C
1211 lines
30 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
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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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#include "opj_includes.h"
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#include "t1_luts.h"
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/** @defgroup T1 T1 - Implementation of the tier-1 coding */
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/*@{*/
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/** @name Local static functions */
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/*@{*/
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static char t1_getctxno_zc(int f, int orient);
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static char t1_getctxno_sc(int f);
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static char t1_getctxno_mag(int f);
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static char t1_getspb(int f);
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static short t1_getnmsedec_sig(int x, int bitpos);
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static short t1_getnmsedec_ref(int x, int bitpos);
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static void t1_updateflags(flag_t *flagsp, int s, int stride);
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/**
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Encode significant pass
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*/
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static void t1_enc_sigpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int bpno,
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int one,
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int *nmsedec,
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char type,
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int vsc);
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/**
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Decode significant pass
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*/
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static void t1_dec_sigpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int oneplushalf,
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char type,
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int vsc);
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/**
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Encode significant pass
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*/
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static void t1_enc_sigpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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int *nmsedec,
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char type,
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int cblksty);
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/**
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Decode significant pass
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*/
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static void t1_dec_sigpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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char type,
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int cblksty);
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/**
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Encode refinement pass
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*/
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static void t1_enc_refpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int bpno,
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int one,
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int *nmsedec,
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char type,
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int vsc);
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/**
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Decode refinement pass
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*/
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static void t1_dec_refpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int poshalf,
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int neghalf,
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char type,
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int vsc);
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/**
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Encode refinement pass
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*/
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static void t1_enc_refpass(
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opj_t1_t *t1,
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int bpno,
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int *nmsedec,
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char type,
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int cblksty);
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/**
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Decode refinement pass
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*/
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static void t1_dec_refpass(
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opj_t1_t *t1,
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int bpno,
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char type,
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int cblksty);
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/**
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Encode clean-up pass
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*/
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static void t1_enc_clnpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int bpno,
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int one,
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int *nmsedec,
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int partial,
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int vsc);
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/**
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Decode clean-up pass
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*/
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static void t1_dec_clnpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int oneplushalf,
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int partial,
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int vsc);
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/**
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Encode clean-up pass
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*/
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static void t1_enc_clnpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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int *nmsedec,
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int cblksty);
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/**
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Decode clean-up pass
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*/
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static void t1_dec_clnpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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int cblksty);
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static double t1_getwmsedec(
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int nmsedec,
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int compno,
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int level,
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int orient,
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int bpno,
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int qmfbid,
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double stepsize,
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int numcomps);
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/**
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Encode 1 code-block
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@param t1 T1 handle
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@param cblk Code-block coding parameters
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@param orient
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@param compno Component number
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@param level
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@param qmfbid
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@param stepsize
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@param cblksty Code-block style
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@param numcomps
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@param tile
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*/
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static void t1_encode_cblk(
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opj_t1_t *t1,
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opj_tcd_cblk_t * cblk,
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int orient,
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int compno,
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int level,
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int qmfbid,
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double stepsize,
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int cblksty,
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int numcomps,
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opj_tcd_tile_t * tile);
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/**
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Decode 1 code-block
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@param t1 T1 handle
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@param cblk Code-block coding parameters
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@param orient
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@param roishift Region of interest shifting value
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@param cblksty Code-block style
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*/
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static void t1_decode_cblk(
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opj_t1_t *t1,
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opj_tcd_cblk_t * cblk,
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int orient,
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int roishift,
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int cblksty);
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/*@}*/
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/*@}*/
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/* ----------------------------------------------------------------------- */
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static char t1_getctxno_zc(int f, int orient) {
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return lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)];
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}
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static char t1_getctxno_sc(int f) {
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return lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
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}
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static char t1_getctxno_mag(int f) {
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return lut_ctxno_mag[(f & T1_SIG_OTH) | (((f & T1_REFINE) != 0) << 11)];
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}
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static char t1_getspb(int f) {
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return lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
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}
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static short t1_getnmsedec_sig(int x, int bitpos) {
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if (bitpos > T1_NMSEDEC_FRACBITS) {
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return lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
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}
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return lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
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}
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static short t1_getnmsedec_ref(int x, int bitpos) {
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if (bitpos > T1_NMSEDEC_FRACBITS) {
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return lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
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}
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return lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
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}
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static void t1_updateflags(flag_t *flagsp, int s, int stride) {
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flag_t *np = flagsp - stride;
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flag_t *sp = flagsp + stride;
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static const flag_t mod[] = {
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T1_SIG_S, T1_SIG_N, T1_SIG_E, T1_SIG_W,
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T1_SIG_S | T1_SGN_S, T1_SIG_N | T1_SGN_N, T1_SIG_E | T1_SGN_E, T1_SIG_W | T1_SGN_W
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};
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s <<= 2;
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np[-1] |= T1_SIG_SE;
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np[0] |= mod[s];
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np[1] |= T1_SIG_SW;
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flagsp[-1] |= mod[s+2];
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flagsp[1] |= mod[s+3];
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sp[-1] |= T1_SIG_NE;
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sp[0] |= mod[s+1];
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sp[1] |= T1_SIG_NW;
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}
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static void t1_enc_sigpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int bpno,
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int one,
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int *nmsedec,
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char type,
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int vsc)
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{
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int v, flag;
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opj_mqc_t *mqc = t1->mqc; /* MQC component */
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flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
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if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
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v = int_abs(*datap) & one ? 1 : 0;
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if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
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mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient)); /* ESSAI */
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mqc_bypass_enc(mqc, v);
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} else {
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mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
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mqc_encode(mqc, v);
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}
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if (v) {
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v = *datap < 0 ? 1 : 0;
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*nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
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if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
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mqc_setcurctx(mqc, t1_getctxno_sc(flag)); /* ESSAI */
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mqc_bypass_enc(mqc, v);
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} else {
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mqc_setcurctx(mqc, t1_getctxno_sc(flag));
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mqc_encode(mqc, v ^ t1_getspb(flag));
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}
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t1_updateflags(flagsp, v, t1->flags_stride);
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*flagsp |= T1_SIG;
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}
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*flagsp |= T1_VISIT;
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}
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}
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static void t1_dec_sigpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int orient,
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int oneplushalf,
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char type,
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int vsc)
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{
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int v, flag;
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opj_raw_t *raw = t1->raw; /* RAW component */
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opj_mqc_t *mqc = t1->mqc; /* MQC component */
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flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
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if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
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if (type == T1_TYPE_RAW) {
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if (raw_decode(raw)) {
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v = raw_decode(raw); /* ESSAI */
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*datap = v ? -oneplushalf : oneplushalf;
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t1_updateflags(flagsp, v, t1->flags_stride);
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*flagsp |= T1_SIG;
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}
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} else {
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mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
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if (mqc_decode(mqc)) {
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mqc_setcurctx(mqc, t1_getctxno_sc(flag));
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v = mqc_decode(mqc) ^ t1_getspb(flag);
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*datap = v ? -oneplushalf : oneplushalf;
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t1_updateflags(flagsp, v, t1->flags_stride);
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*flagsp |= T1_SIG;
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}
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}
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*flagsp |= T1_VISIT;
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}
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} /* VSC and BYPASS by Antonin */
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static void t1_enc_sigpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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int *nmsedec,
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char type,
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int cblksty)
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{
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int i, j, k, one, vsc;
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*nmsedec = 0;
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one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
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for (k = 0; k < t1->h; k += 4) {
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for (i = 0; i < t1->w; ++i) {
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for (j = k; j < k + 4 && j < t1->h; ++j) {
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vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
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t1_enc_sigpass_step(
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t1,
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&t1->flags[((j+1) * t1->flags_stride) + i + 1],
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&t1->data[(j * t1->w) + i],
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orient,
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bpno,
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one,
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nmsedec,
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type,
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vsc);
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}
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}
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}
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}
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static void t1_dec_sigpass(
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opj_t1_t *t1,
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int bpno,
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int orient,
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char type,
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int cblksty)
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{
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int i, j, k, one, half, oneplushalf, vsc;
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one = 1 << bpno;
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half = one >> 1;
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oneplushalf = one | half;
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for (k = 0; k < t1->h; k += 4) {
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for (i = 0; i < t1->w; ++i) {
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for (j = k; j < k + 4 && j < t1->h; ++j) {
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vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
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t1_dec_sigpass_step(
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t1,
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&t1->flags[((j+1) * t1->flags_stride) + i + 1],
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&t1->data[(j * t1->w) + i],
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orient,
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oneplushalf,
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type,
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vsc);
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}
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}
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}
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} /* VSC and BYPASS by Antonin */
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static void t1_enc_refpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int bpno,
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int one,
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int *nmsedec,
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char type,
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int vsc)
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{
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int v, flag;
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opj_mqc_t *mqc = t1->mqc; /* MQC component */
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flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
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if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
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*nmsedec += t1_getnmsedec_ref(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
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v = int_abs(*datap) & one ? 1 : 0;
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if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */
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mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */
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mqc_bypass_enc(mqc, v);
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} else {
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mqc_setcurctx(mqc, t1_getctxno_mag(flag));
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mqc_encode(mqc, v);
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}
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*flagsp |= T1_REFINE;
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}
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}
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static void t1_dec_refpass_step(
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opj_t1_t *t1,
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flag_t *flagsp,
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int *datap,
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int poshalf,
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int neghalf,
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char type,
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int vsc)
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{
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int v, t, flag;
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opj_mqc_t *mqc = t1->mqc; /* MQC component */
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opj_raw_t *raw = t1->raw; /* RAW component */
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flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
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if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
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if (type == T1_TYPE_RAW) {
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mqc_setcurctx(mqc, t1_getctxno_mag(flag)); /* ESSAI */
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v = raw_decode(raw);
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} else {
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mqc_setcurctx(mqc, t1_getctxno_mag(flag));
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v = mqc_decode(mqc);
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}
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t = v ? poshalf : neghalf;
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*datap += *datap < 0 ? -t : t;
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*flagsp |= T1_REFINE;
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}
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} /* VSC and BYPASS by Antonin */
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static void t1_enc_refpass(
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opj_t1_t *t1,
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int bpno,
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int *nmsedec,
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char type,
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int cblksty)
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{
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int i, j, k, one, vsc;
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*nmsedec = 0;
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one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
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for (k = 0; k < t1->h; k += 4) {
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for (i = 0; i < t1->w; ++i) {
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for (j = k; j < k + 4 && j < t1->h; ++j) {
|
|
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
|
|
t1_enc_refpass_step(
|
|
t1,
|
|
&t1->flags[((j+1) * t1->flags_stride) + i + 1],
|
|
&t1->data[(j * t1->w) + i],
|
|
bpno,
|
|
one,
|
|
nmsedec,
|
|
type,
|
|
vsc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void t1_dec_refpass(
|
|
opj_t1_t *t1,
|
|
int bpno,
|
|
char type,
|
|
int cblksty)
|
|
{
|
|
int i, j, k, one, poshalf, neghalf;
|
|
int vsc;
|
|
one = 1 << bpno;
|
|
poshalf = one >> 1;
|
|
neghalf = bpno > 0 ? -poshalf : -1;
|
|
for (k = 0; k < t1->h; k += 4) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
for (j = k; j < k + 4 && j < t1->h; ++j) {
|
|
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
|
|
t1_dec_refpass_step(
|
|
t1,
|
|
&t1->flags[((j+1) * t1->flags_stride) + i + 1],
|
|
&t1->data[(j * t1->w) + i],
|
|
poshalf,
|
|
neghalf,
|
|
type,
|
|
vsc);
|
|
}
|
|
}
|
|
}
|
|
} /* VSC and BYPASS by Antonin */
|
|
|
|
static void t1_enc_clnpass_step(
|
|
opj_t1_t *t1,
|
|
flag_t *flagsp,
|
|
int *datap,
|
|
int orient,
|
|
int bpno,
|
|
int one,
|
|
int *nmsedec,
|
|
int partial,
|
|
int vsc)
|
|
{
|
|
int v, flag;
|
|
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
|
|
if (partial) {
|
|
goto LABEL_PARTIAL;
|
|
}
|
|
if (!(*flagsp & (T1_SIG | T1_VISIT))) {
|
|
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
|
|
v = int_abs(*datap) & one ? 1 : 0;
|
|
mqc_encode(mqc, v);
|
|
if (v) {
|
|
LABEL_PARTIAL:
|
|
*nmsedec += t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
|
|
mqc_setcurctx(mqc, t1_getctxno_sc(flag));
|
|
v = *datap < 0 ? 1 : 0;
|
|
mqc_encode(mqc, v ^ t1_getspb(flag));
|
|
t1_updateflags(flagsp, v, t1->flags_stride);
|
|
*flagsp |= T1_SIG;
|
|
}
|
|
}
|
|
*flagsp &= ~T1_VISIT;
|
|
}
|
|
|
|
static void t1_dec_clnpass_step(
|
|
opj_t1_t *t1,
|
|
flag_t *flagsp,
|
|
int *datap,
|
|
int orient,
|
|
int oneplushalf,
|
|
int partial,
|
|
int vsc)
|
|
{
|
|
int v, flag;
|
|
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
|
|
if (partial) {
|
|
goto LABEL_PARTIAL;
|
|
}
|
|
if (!(flag & (T1_SIG | T1_VISIT))) {
|
|
mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
|
|
if (mqc_decode(mqc)) {
|
|
LABEL_PARTIAL:
|
|
mqc_setcurctx(mqc, t1_getctxno_sc(flag));
|
|
v = mqc_decode(mqc) ^ t1_getspb(flag);
|
|
*datap = v ? -oneplushalf : oneplushalf;
|
|
t1_updateflags(flagsp, v, t1->flags_stride);
|
|
*flagsp |= T1_SIG;
|
|
}
|
|
}
|
|
*flagsp &= ~T1_VISIT;
|
|
} /* VSC and BYPASS by Antonin */
|
|
|
|
static void t1_enc_clnpass(
|
|
opj_t1_t *t1,
|
|
int bpno,
|
|
int orient,
|
|
int *nmsedec,
|
|
int cblksty)
|
|
{
|
|
int i, j, k, one, agg, runlen, vsc;
|
|
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
*nmsedec = 0;
|
|
one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
|
|
for (k = 0; k < t1->h; k += 4) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
if (k + 3 < t1->h) {
|
|
if (cblksty & J2K_CCP_CBLKSTY_VSC) {
|
|
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| (MACRO_t1_flags(1 + k + 3,1 + i)
|
|
& (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
|
|
} else {
|
|
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
|
|
}
|
|
} else {
|
|
agg = 0;
|
|
}
|
|
if (agg) {
|
|
for (runlen = 0; runlen < 4; ++runlen) {
|
|
if (int_abs(t1->data[((k + runlen)*t1->w) + i]) & one)
|
|
break;
|
|
}
|
|
mqc_setcurctx(mqc, T1_CTXNO_AGG);
|
|
mqc_encode(mqc, runlen != 4);
|
|
if (runlen == 4) {
|
|
continue;
|
|
}
|
|
mqc_setcurctx(mqc, T1_CTXNO_UNI);
|
|
mqc_encode(mqc, runlen >> 1);
|
|
mqc_encode(mqc, runlen & 1);
|
|
} else {
|
|
runlen = 0;
|
|
}
|
|
for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
|
|
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
|
|
t1_enc_clnpass_step(
|
|
t1,
|
|
&t1->flags[((j+1) * t1->flags_stride) + i + 1],
|
|
&t1->data[(j * t1->w) + i],
|
|
orient,
|
|
bpno,
|
|
one,
|
|
nmsedec,
|
|
agg && (j == k + runlen),
|
|
vsc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void t1_dec_clnpass(
|
|
opj_t1_t *t1,
|
|
int bpno,
|
|
int orient,
|
|
int cblksty)
|
|
{
|
|
int i, j, k, one, half, oneplushalf, agg, runlen, vsc;
|
|
int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
|
|
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
one = 1 << bpno;
|
|
half = one >> 1;
|
|
oneplushalf = one | half;
|
|
for (k = 0; k < t1->h; k += 4) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
if (k + 3 < t1->h) {
|
|
if (cblksty & J2K_CCP_CBLKSTY_VSC) {
|
|
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| (MACRO_t1_flags(1 + k + 3,1 + i)
|
|
& (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
|
|
} else {
|
|
agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
|
|
|| MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
|
|
}
|
|
} else {
|
|
agg = 0;
|
|
}
|
|
if (agg) {
|
|
mqc_setcurctx(mqc, T1_CTXNO_AGG);
|
|
if (!mqc_decode(mqc)) {
|
|
continue;
|
|
}
|
|
mqc_setcurctx(mqc, T1_CTXNO_UNI);
|
|
runlen = mqc_decode(mqc);
|
|
runlen = (runlen << 1) | mqc_decode(mqc);
|
|
} else {
|
|
runlen = 0;
|
|
}
|
|
for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
|
|
vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
|
|
t1_dec_clnpass_step(
|
|
t1,
|
|
&t1->flags[((j+1) * t1->flags_stride) + i + 1],
|
|
&t1->data[(j * t1->w) + i],
|
|
orient,
|
|
oneplushalf,
|
|
agg && (j == k + runlen),
|
|
vsc);
|
|
}
|
|
}
|
|
}
|
|
if (segsym) {
|
|
int v = 0;
|
|
mqc_setcurctx(mqc, T1_CTXNO_UNI);
|
|
v = mqc_decode(mqc);
|
|
v = (v << 1) | mqc_decode(mqc);
|
|
v = (v << 1) | mqc_decode(mqc);
|
|
v = (v << 1) | mqc_decode(mqc);
|
|
/*
|
|
if (v!=0xa) {
|
|
opj_event_msg(t1->cinfo, EVT_WARNING, "Bad segmentation symbol %x\n", v);
|
|
}
|
|
*/
|
|
}
|
|
} /* VSC and BYPASS by Antonin */
|
|
|
|
|
|
/** mod fixed_quality */
|
|
static double t1_getwmsedec(
|
|
int nmsedec,
|
|
int compno,
|
|
int level,
|
|
int orient,
|
|
int bpno,
|
|
int qmfbid,
|
|
double stepsize,
|
|
int numcomps)
|
|
{
|
|
double w1, w2, wmsedec;
|
|
if (qmfbid == 1) {
|
|
w1 = (numcomps > 1) ? mct_getnorm(compno) : 1.0;
|
|
w2 = dwt_getnorm(level, orient);
|
|
} else { /* if (qmfbid == 0) */
|
|
w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1.0;
|
|
w2 = dwt_getnorm_real(level, orient);
|
|
}
|
|
wmsedec = w1 * w2 * stepsize * (1 << bpno);
|
|
wmsedec *= wmsedec * nmsedec / 8192.0;
|
|
|
|
return wmsedec;
|
|
}
|
|
|
|
static void allocate_buffers(
|
|
opj_t1_t *t1,
|
|
int w,
|
|
int h)
|
|
{
|
|
int datasize;
|
|
int flagssize;
|
|
|
|
datasize=w * h;
|
|
//fprintf(stderr,"w=%i h=%i datasize=%i flagssize=%i\n",w,h,datasize,flagssize);
|
|
|
|
if(datasize > t1->datasize){
|
|
//fprintf(stderr,"Allocating t1->data: datasize=%i\n",datasize);
|
|
free(t1->data);
|
|
t1->data=malloc(datasize * sizeof(int));
|
|
if(!t1->data){
|
|
return;
|
|
}
|
|
t1->datasize=datasize;
|
|
}
|
|
//memset(t1->data,0xff,t1->datasize);
|
|
memset(t1->data,0,datasize * sizeof(int));
|
|
|
|
t1->flags_stride=w+2;
|
|
flagssize=t1->flags_stride * (h+2);
|
|
|
|
if(flagssize > t1->flagssize){
|
|
//fprintf(stderr,"Allocating t1->flags: flagssize=%i\n",flagssize);
|
|
free(t1->flags);
|
|
t1->flags=malloc(flagssize * sizeof(flag_t));
|
|
if(!t1->flags){
|
|
fprintf(stderr,"Allocating t1->flags FAILED!\n");
|
|
return;
|
|
}
|
|
t1->flagssize=flagssize;
|
|
}
|
|
//memset(t1->flags,0xff,t1->flagssize);
|
|
memset(t1->flags,0,flagssize * sizeof(flag_t));
|
|
|
|
t1->w=w;
|
|
t1->h=h;
|
|
}
|
|
|
|
/** mod fixed_quality */
|
|
static void t1_encode_cblk(
|
|
opj_t1_t *t1,
|
|
opj_tcd_cblk_t * cblk,
|
|
int orient,
|
|
int compno,
|
|
int level,
|
|
int qmfbid,
|
|
double stepsize,
|
|
int cblksty,
|
|
int numcomps,
|
|
opj_tcd_tile_t * tile)
|
|
{
|
|
int i, j;
|
|
int passno;
|
|
int bpno, passtype;
|
|
int max;
|
|
int nmsedec = 0;
|
|
double cumwmsedec = 0.0;
|
|
char type = T1_TYPE_MQ;
|
|
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
max = 0;
|
|
for (j = 0; j < t1->h; ++j) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
max = int_max(max, int_abs(t1->data[(j * t1->w) + i]));
|
|
}
|
|
}
|
|
|
|
cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0;
|
|
|
|
bpno = cblk->numbps - 1;
|
|
passtype = 2;
|
|
|
|
mqc_resetstates(mqc);
|
|
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
|
|
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
|
|
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
|
|
mqc_init_enc(mqc, cblk->data);
|
|
|
|
for (passno = 0; bpno >= 0; ++passno) {
|
|
opj_tcd_pass_t *pass = &cblk->passes[passno];
|
|
int correction = 3;
|
|
type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
|
|
|
|
switch (passtype) {
|
|
case 0:
|
|
t1_enc_sigpass(t1, bpno, orient, &nmsedec, type, cblksty);
|
|
break;
|
|
case 1:
|
|
t1_enc_refpass(t1, bpno, &nmsedec, type, cblksty);
|
|
break;
|
|
case 2:
|
|
t1_enc_clnpass(t1, bpno, orient, &nmsedec, cblksty);
|
|
/* code switch SEGMARK (i.e. SEGSYM) */
|
|
if (cblksty & J2K_CCP_CBLKSTY_SEGSYM)
|
|
mqc_segmark_enc(mqc);
|
|
break;
|
|
}
|
|
|
|
/* fixed_quality */
|
|
cumwmsedec += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps);
|
|
tile->distotile += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps);
|
|
|
|
/* Code switch "RESTART" (i.e. TERMALL) */
|
|
if ((cblksty & J2K_CCP_CBLKSTY_TERMALL) && !((passtype == 2) && (bpno - 1 < 0))) {
|
|
if (type == T1_TYPE_RAW) {
|
|
mqc_flush(mqc);
|
|
correction = 1;
|
|
/* correction = mqc_bypass_flush_enc(); */
|
|
} else { /* correction = mqc_restart_enc(); */
|
|
mqc_flush(mqc);
|
|
correction = 1;
|
|
}
|
|
pass->term = 1;
|
|
} else {
|
|
if (((bpno < (cblk->numbps - 4) && (passtype > 0))
|
|
|| ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) {
|
|
if (type == T1_TYPE_RAW) {
|
|
mqc_flush(mqc);
|
|
correction = 1;
|
|
/* correction = mqc_bypass_flush_enc(); */
|
|
} else { /* correction = mqc_restart_enc(); */
|
|
mqc_flush(mqc);
|
|
correction = 1;
|
|
}
|
|
pass->term = 1;
|
|
} else {
|
|
pass->term = 0;
|
|
}
|
|
}
|
|
|
|
if (++passtype == 3) {
|
|
passtype = 0;
|
|
bpno--;
|
|
}
|
|
|
|
if (pass->term && bpno > 0) {
|
|
type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
|
|
if (type == T1_TYPE_RAW)
|
|
mqc_bypass_init_enc(mqc);
|
|
else
|
|
mqc_restart_init_enc(mqc);
|
|
}
|
|
|
|
pass->distortiondec = cumwmsedec;
|
|
pass->rate = mqc_numbytes(mqc) + correction; /* FIXME */
|
|
|
|
/* Code-switch "RESET" */
|
|
if (cblksty & J2K_CCP_CBLKSTY_RESET)
|
|
mqc_reset_enc(mqc);
|
|
}
|
|
|
|
/* Code switch "ERTERM" (i.e. PTERM) */
|
|
if (cblksty & J2K_CCP_CBLKSTY_PTERM)
|
|
mqc_erterm_enc(mqc);
|
|
else /* Default coding */ if (!(cblksty & J2K_CCP_CBLKSTY_LAZY))
|
|
mqc_flush(mqc);
|
|
|
|
cblk->totalpasses = passno;
|
|
|
|
for (passno = 0; passno<cblk->totalpasses; passno++) {
|
|
opj_tcd_pass_t *pass = &cblk->passes[passno];
|
|
if (pass->rate > mqc_numbytes(mqc))
|
|
pass->rate = mqc_numbytes(mqc);
|
|
/*Preventing generation of FF as last data byte of a pass*/
|
|
if((pass->rate>1) && (cblk->data[pass->rate - 1] == 0xFF)){
|
|
pass->rate--;
|
|
}
|
|
pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate);
|
|
}
|
|
}
|
|
|
|
static void t1_decode_cblk(
|
|
opj_t1_t *t1,
|
|
opj_tcd_cblk_t * cblk,
|
|
int orient,
|
|
int roishift,
|
|
int cblksty)
|
|
{
|
|
int bpno, passtype;
|
|
int segno, passno;
|
|
char type = T1_TYPE_MQ; /* BYPASS mode */
|
|
|
|
opj_raw_t *raw = t1->raw; /* RAW component */
|
|
opj_mqc_t *mqc = t1->mqc; /* MQC component */
|
|
|
|
allocate_buffers(
|
|
t1,
|
|
cblk->x1 - cblk->x0,
|
|
cblk->y1 - cblk->y0);
|
|
|
|
bpno = roishift + cblk->numbps - 1;
|
|
passtype = 2;
|
|
|
|
mqc_resetstates(mqc);
|
|
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
|
|
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
|
|
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
|
|
|
|
for (segno = 0; segno < cblk->numsegs; ++segno) {
|
|
opj_tcd_seg_t *seg = &cblk->segs[segno];
|
|
|
|
/* BYPASS mode */
|
|
type = ((bpno <= (cblk->numbps - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
|
|
if (type == T1_TYPE_RAW) {
|
|
raw_init_dec(raw, seg->data, seg->len);
|
|
} else {
|
|
mqc_init_dec(mqc, seg->data, seg->len);
|
|
}
|
|
|
|
for (passno = 0; passno < seg->numpasses; ++passno) {
|
|
switch (passtype) {
|
|
case 0:
|
|
t1_dec_sigpass(t1, bpno+1, orient, type, cblksty);
|
|
break;
|
|
case 1:
|
|
t1_dec_refpass(t1, bpno+1, type, cblksty);
|
|
break;
|
|
case 2:
|
|
t1_dec_clnpass(t1, bpno+1, orient, cblksty);
|
|
break;
|
|
}
|
|
|
|
if ((cblksty & J2K_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) {
|
|
mqc_resetstates(mqc);
|
|
mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
|
|
mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
|
|
mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
|
|
}
|
|
if (++passtype == 3) {
|
|
passtype = 0;
|
|
bpno--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
opj_t1_t* t1_create(opj_common_ptr cinfo) {
|
|
opj_t1_t *t1 = (opj_t1_t*) malloc(sizeof(opj_t1_t));
|
|
if(!t1)
|
|
return NULL;
|
|
|
|
t1->cinfo = cinfo;
|
|
/* create MQC and RAW handles */
|
|
t1->mqc = mqc_create();
|
|
t1->raw = raw_create();
|
|
|
|
t1->datasize=0;
|
|
t1->data=NULL;
|
|
t1->flagssize=0;
|
|
t1->flags=NULL;
|
|
|
|
return t1;
|
|
}
|
|
|
|
void t1_destroy(opj_t1_t *t1) {
|
|
if(t1) {
|
|
/* destroy MQC and RAW handles */
|
|
mqc_destroy(t1->mqc);
|
|
raw_destroy(t1->raw);
|
|
free(t1->data);
|
|
free(t1->flags);
|
|
free(t1);
|
|
}
|
|
}
|
|
|
|
void t1_encode_cblks(
|
|
opj_t1_t *t1,
|
|
opj_tcd_tile_t *tile,
|
|
opj_tcp_t *tcp)
|
|
{
|
|
int compno, resno, bandno, precno, cblkno;
|
|
|
|
tile->distotile = 0; /* fixed_quality */
|
|
|
|
for (compno = 0; compno < tile->numcomps; ++compno) {
|
|
opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
|
|
|
|
for (resno = 0; resno < tilec->numresolutions; ++resno) {
|
|
opj_tcd_resolution_t *res = &tilec->resolutions[resno];
|
|
|
|
for (bandno = 0; bandno < res->numbands; ++bandno) {
|
|
opj_tcd_band_t *band = &res->bands[bandno];
|
|
|
|
for (precno = 0; precno < res->pw * res->ph; ++precno) {
|
|
opj_tcd_precinct_t *prc = &band->precincts[precno];
|
|
|
|
for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
|
|
int x, y, w, i, j, orient;
|
|
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
|
|
|
|
x = cblk->x0 - band->x0;
|
|
y = cblk->y0 - band->y0;
|
|
if (band->bandno & 1) {
|
|
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
|
|
x += pres->x1 - pres->x0;
|
|
}
|
|
if (band->bandno & 2) {
|
|
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
|
|
y += pres->y1 - pres->y0;
|
|
}
|
|
|
|
allocate_buffers(
|
|
t1,
|
|
cblk->x1 - cblk->x0,
|
|
cblk->y1 - cblk->y0);
|
|
|
|
w = tilec->x1 - tilec->x0;
|
|
if (tcp->tccps[compno].qmfbid == 1) {
|
|
for (j = 0; j < t1->h; ++j) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
t1->data[(j * t1->w) + i] =
|
|
tilec->data[(x + i) + (y + j) * w] << T1_NMSEDEC_FRACBITS;
|
|
}
|
|
}
|
|
} else { /* if (tcp->tccps[compno].qmfbid == 0) */
|
|
for (j = 0; j < t1->h; ++j) {
|
|
for (i = 0; i < t1->w; ++i) {
|
|
t1->data[(j * t1->w) + i] =
|
|
fix_mul(
|
|
tilec->data[x + i + (y + j) * w],
|
|
8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (11 - T1_NMSEDEC_FRACBITS);
|
|
}
|
|
}
|
|
}
|
|
orient = band->bandno; /* FIXME */
|
|
if (orient == 2) {
|
|
orient = 1;
|
|
} else if (orient == 1) {
|
|
orient = 2;
|
|
}
|
|
|
|
t1_encode_cblk(
|
|
t1,
|
|
cblk,
|
|
orient,
|
|
compno,
|
|
tilec->numresolutions - 1 - resno,
|
|
tcp->tccps[compno].qmfbid,
|
|
band->stepsize,
|
|
tcp->tccps[compno].cblksty,
|
|
tile->numcomps,
|
|
tile);
|
|
|
|
} /* cblkno */
|
|
} /* precno */
|
|
} /* bandno */
|
|
} /* resno */
|
|
} /* compno */
|
|
}
|
|
|
|
void t1_decode_cblks(
|
|
opj_t1_t *t1,
|
|
opj_tcd_tile_t *tile,
|
|
opj_tcp_t *tcp)
|
|
{
|
|
int compno, resno, bandno, precno, cblkno;
|
|
|
|
for (compno = 0; compno < tile->numcomps; ++compno) {
|
|
opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
|
|
|
|
for (resno = 0; resno < tilec->numresolutions; ++resno) {
|
|
opj_tcd_resolution_t *res = &tilec->resolutions[resno];
|
|
|
|
for (bandno = 0; bandno < res->numbands; ++bandno) {
|
|
opj_tcd_band_t *band = &res->bands[bandno];
|
|
|
|
for (precno = 0; precno < res->pw * res->ph; ++precno) {
|
|
opj_tcd_precinct_t *prc = &band->precincts[precno];
|
|
|
|
for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
|
|
int x, y, w, i, j, orient, cblk_w, cblk_h;
|
|
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
|
|
|
|
orient = band->bandno; /* FIXME */
|
|
if (orient == 2) {
|
|
orient = 1;
|
|
} else if (orient == 1) {
|
|
orient = 2;
|
|
}
|
|
|
|
t1_decode_cblk(
|
|
t1,
|
|
cblk,
|
|
orient,
|
|
tcp->tccps[compno].roishift,
|
|
tcp->tccps[compno].cblksty);
|
|
|
|
x = cblk->x0 - band->x0;
|
|
y = cblk->y0 - band->y0;
|
|
if (band->bandno & 1) {
|
|
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
|
|
x += pres->x1 - pres->x0;
|
|
}
|
|
if (band->bandno & 2) {
|
|
opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
|
|
y += pres->y1 - pres->y0;
|
|
}
|
|
|
|
cblk_w = cblk->x1 - cblk->x0;
|
|
cblk_h = cblk->y1 - cblk->y0;
|
|
|
|
if (tcp->tccps[compno].roishift) {
|
|
int thresh = 1 << tcp->tccps[compno].roishift;
|
|
for (j = 0; j < cblk_h; ++j) {
|
|
for (i = 0; i < cblk_w; ++i) {
|
|
int val = t1->data[(j * t1->w) + i];
|
|
int mag = int_abs(val);
|
|
if (mag >= thresh) {
|
|
mag >>= tcp->tccps[compno].roishift;
|
|
t1->data[(j * t1->w) + i] = val < 0 ? -mag : mag;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
w = tilec->x1 - tilec->x0;
|
|
if (tcp->tccps[compno].qmfbid == 1) {
|
|
for (j = 0; j < cblk_h; ++j) {
|
|
for (i = 0; i < cblk_w; ++i) {
|
|
tilec->data[x + i + (y + j) * w] = t1->data[(j * t1->w) + i]/2;
|
|
}
|
|
}
|
|
} else { /* if (tcp->tccps[compno].qmfbid == 0) */
|
|
for (j = 0; j < cblk_h; ++j) {
|
|
for (i = 0; i < cblk_w; ++i) {
|
|
if (t1->data[(j * t1->w) + i] >> 1 == 0) {
|
|
tilec->data[x + i + (y + j) * w] = 0;
|
|
} else {
|
|
double tmp = (double)(t1->data[(j * t1->w) + i] * band->stepsize * 4096.0);
|
|
int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2);
|
|
tilec->data[x + i + (y + j) * w] = ((tmp<0)?-tmp2:tmp2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} /* cblkno */
|
|
} /* precno */
|
|
} /* bandno */
|
|
} /* resno */
|
|
} /* compno */
|
|
}
|
|
|