X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2Fgdcmopenjpeg%2Flibopenjpeg%2Ft1.c;h=49651fe9bfbc0857dc0c0b99af7f3229063fdb6e;hb=24394a63b18810c791af1c913e1a6fc712d3d3a0;hp=b764358f51116513e8f4e7b63bbf0d70420bb7ee;hpb=bef3bec50f674640783aed3d3c4cbcdd3fb919d7;p=gdcm.git diff --git a/src/gdcmopenjpeg/libopenjpeg/t1.c b/src/gdcmopenjpeg/libopenjpeg/t1.c index b764358f..49651fe9 100644 --- a/src/gdcmopenjpeg/libopenjpeg/t1.c +++ b/src/gdcmopenjpeg/libopenjpeg/t1.c @@ -1,1095 +1,1095 @@ -/* - * Copyright (c) 2001-2003, David Janssens - * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe - * Copyright (c) 2005, Hervé Drolon, FreeImage Team - * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium - * 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. - */ - -#include "opj_includes.h" - -/** @defgroup T1 T1 - Implementation of the tier-1 coding */ -/*@{*/ - -/** @name Local static functions */ -/*@{*/ - -static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient); -static int t1_getctxno_sc(opj_t1_t *t1, int f); -static int t1_getctxno_mag(opj_t1_t *t1, int f); -static int t1_getspb(opj_t1_t *t1, int f); -static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos); -static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos); -static void t1_updateflags(int *fp, int s); -/** -Encode significant pass -*/ -static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc); -/** -Decode significant pass -*/ -static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc); -/** -Encode significant pass -*/ -static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty); -/** -Decode significant pass -*/ -static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty); -/** -Encode refinement pass -*/ -static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc); -/** -Decode refinement pass -*/ -static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc); -/** -Encode refinement pass -*/ -static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty); -/** -Decode refinement pass -*/ -static void t1_dec_refpass(opj_t1_t *t1, int w, int h, int bpno, char type, int cblksty); -/** -Encode clean-up pass -*/ -static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, int partial, int vsc); -/** -Decode clean-up pass -*/ -static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc); -/** -Encode clean-up pass -*/ -static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, int cblksty); -/** -Decode clean-up pass -*/ -static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int cblksty); -static double t1_getwmsedec(int nmsedec, int compno, int level, int orient, int bpno, int qmfbid, double stepsize, int numcomps); -/** -Encode 1 code-block -@param t1 T1 handle -@param cblk Code-block coding parameters -@param orient -@param compno Component number -@param level -@param qmfbid -@param stepsize -@param cblksty Code-block style -@param numcomps -@param tile -*/ -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); -/** -Decode 1 code-block -@param t1 T1 handle -@param cblk Code-block coding parameters -@param orient -@param roishift Region of interest shifting value -@param cblksty Code-block style -*/ -static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty); -static int t1_init_ctxno_zc(int f, int orient); -static int t1_init_ctxno_sc(int f); -static int t1_init_ctxno_mag(int f); -static int t1_init_spb(int f); -/** -Initialize the look-up tables of the Tier-1 coder/decoder -@param t1 T1 handle -*/ -static void t1_init_luts(opj_t1_t *t1); - -/*@}*/ - -/*@}*/ - -/* ----------------------------------------------------------------------- */ - -static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient) { - return t1->lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)]; -} - -static int t1_getctxno_sc(opj_t1_t *t1, int f) { - return t1->lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; -} - -static int t1_getctxno_mag(opj_t1_t *t1, int f) { - return t1->lut_ctxno_mag[(f & T1_SIG_OTH) | (((f & T1_REFINE) != 0) << 11)]; -} - -static int t1_getspb(opj_t1_t *t1, int f) { - return t1->lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; -} - -static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos) { - if (bitpos > T1_NMSEDEC_FRACBITS) { - return t1->lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; - } - - return t1->lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; -} - -static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos) { - if (bitpos > T1_NMSEDEC_FRACBITS) { - return t1->lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; - } - - return t1->lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; -} - -static void t1_updateflags(int *fp, int s) { - int *np = fp - (T1_MAXCBLKW + 2); - int *sp = fp + (T1_MAXCBLKW + 2); - np[-1] |= T1_SIG_SE; - np[1] |= T1_SIG_SW; - sp[-1] |= T1_SIG_NE; - sp[1] |= T1_SIG_NW; - *np |= T1_SIG_S; - *sp |= T1_SIG_N; - fp[-1] |= T1_SIG_E; - fp[1] |= T1_SIG_W; - if (s) { - *np |= T1_SGN_S; - *sp |= T1_SGN_N; - fp[-1] |= T1_SGN_E; - fp[1] |= T1_SGN_W; - } -} - -static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc) { - int v, flag; - - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - - flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { - v = int_abs(*dp) & one ? 1 : 0; - if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ - mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); /* ESSAI */ - mqc_bypass_enc(mqc, v); - } else { - mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); - mqc_encode(mqc, v); - } - if (v) { - v = *dp < 0 ? 1 : 0; - *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); - if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ - mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); /* ESSAI */ - mqc_bypass_enc(mqc, v); - } else { - mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); - mqc_encode(mqc, v ^ t1_getspb(t1, flag)); - } - t1_updateflags(fp, v); - *fp |= T1_SIG; - } - *fp |= T1_VISIT; - } -} - -static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc) { - int v, flag; - - opj_raw_t *raw = t1->raw; /* RAW component */ - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - - flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { - if (type == T1_TYPE_RAW) { - if (raw_decode(raw)) { - v = raw_decode(raw); /* ESSAI */ - *dp = v ? -oneplushalf : oneplushalf; - t1_updateflags(fp, v); - *fp |= T1_SIG; - } - } else { - mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); - if (mqc_decode(mqc)) { - mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); - v = mqc_decode(mqc) ^ t1_getspb(t1, flag); - *dp = v ? -oneplushalf : oneplushalf; - t1_updateflags(fp, v); - *fp |= T1_SIG; - } - } - *fp |= T1_VISIT; - } -} /* VSC and BYPASS by Antonin */ - -static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty) { - int i, j, k, one, vsc; - *nmsedec = 0; - one = 1 << (bpno + T1_NMSEDEC_FRACBITS); - for (k = 0; k < h; k += 4) { - for (i = 0; i < w; i++) { - for (j = k; j < k + 4 && j < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_enc_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, type, vsc); - } - } - } -} - -static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty) { - int i, j, k, one, half, oneplushalf, vsc; - one = 1 << bpno; - half = one >> 1; - oneplushalf = one | half; - for (k = 0; k < h; k += 4) { - for (i = 0; i < w; i++) { - for (j = k; j < k + 4 && j < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_dec_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, oneplushalf, type, vsc); - } - } - } -} /* VSC and BYPASS by Antonin */ - -static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc) { - int v, flag; - - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - - flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { - *nmsedec += t1_getnmsedec_ref(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); - v = int_abs(*dp) & one ? 1 : 0; - if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ - mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ - mqc_bypass_enc(mqc, v); - } else { - mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); - mqc_encode(mqc, v); - } - *fp |= T1_REFINE; - } -} - -static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc) { - int v, t, flag; - - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - opj_raw_t *raw = t1->raw; /* RAW component */ - - flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { - if (type == T1_TYPE_RAW) { - mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ - v = raw_decode(raw); - } else { - mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); - v = mqc_decode(mqc); - } - t = v ? poshalf : neghalf; - *dp += *dp < 0 ? -t : t; - *fp |= T1_REFINE; - } -} /* VSC and BYPASS by Antonin */ - -static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty) { - int i, j, k, one, vsc; - *nmsedec = 0; - one = 1 << (bpno + T1_NMSEDEC_FRACBITS); - for (k = 0; k < h; k += 4) { - for (i = 0; i < w; i++) { - for (j = k; j < k + 4 && j < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_enc_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], bpno, one, nmsedec, type, vsc); - } - } - } -} - -static void t1_dec_refpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { - for (i = 0; i < w; i++) { - for (j = k; j < k + 4 && j < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_dec_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], poshalf, neghalf, type, vsc); - } - } - } -} /* VSC and BYPASS by Antonin */ - -static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, 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 ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if (partial) { - goto LABEL_PARTIAL; - } - if (!(*fp & (T1_SIG | T1_VISIT))) { - mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); - v = int_abs(*dp) & one ? 1 : 0; - mqc_encode(mqc, v); - if (v) { -LABEL_PARTIAL: - *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); - mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); - v = *dp < 0 ? 1 : 0; - mqc_encode(mqc, v ^ t1_getspb(t1, flag)); - t1_updateflags(fp, v); - *fp |= T1_SIG; - } - } - *fp &= ~T1_VISIT; -} - -static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc) { - int v, flag; - - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - - flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); - if (partial) { - goto LABEL_PARTIAL; - } - if (!(flag & (T1_SIG | T1_VISIT))) { - mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); - if (mqc_decode(mqc)) { -LABEL_PARTIAL: - mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); - v = mqc_decode(mqc) ^ t1_getspb(t1, flag); - *dp = v ? -oneplushalf : oneplushalf; - t1_updateflags(fp, v); - *fp |= T1_SIG; - } - } - *fp &= ~T1_VISIT; -} /* VSC and BYPASS by Antonin */ - -static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { - for (i = 0; i < w; i++) { - if (k + 3 < h) { - if (cblksty & J2K_CCP_CBLKSTY_VSC) { - agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || (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 = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || 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][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 < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_enc_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, agg && (j == k + runlen), vsc); - } - } - } -} - -static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { - for (i = 0; i < w; i++) { - if (k + 3 < h) { - if (cblksty & J2K_CCP_CBLKSTY_VSC) { - agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || (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 = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) - || 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 < h; j++) { - vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; - t1_dec_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][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; - w2 = dwt_getnorm(level, orient); - } else { /* if (qmfbid == 0) */ - w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1; - w2 = dwt_getnorm_real(level, orient); - } - wmsedec = w1 * w2 * stepsize * (1 << bpno); - wmsedec *= wmsedec * nmsedec / 8192.0; - - return wmsedec; -} - -/** 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 w, h; - int passno; - int bpno, passtype; - int max; - int nmsedec; - double cumwmsedec = 0; - char type = T1_TYPE_MQ; - - opj_mqc_t *mqc = t1->mqc; /* MQC component */ - - w = cblk->x1 - cblk->x0; - h = cblk->y1 - cblk->y0; - - max = 0; - for (j = 0; j < h; j++) { - for (i = 0; i < w; i++) { - max = int_max(max, int_abs(t1->data[j][i])); - } - } - - cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0; - - /* Changed by Dmitry Kolyadin */ - for (i = 0; i <= w; i++) { - for (j = 0; j <= h; j++) { - t1->flags[j][i] = 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, w, h, bpno, orient, &nmsedec, type, cblksty); - break; - case 1: - t1_enc_refpass(t1, w, h, bpno, &nmsedec, type, cblksty); - break; - case 2: - t1_enc_clnpass(t1, w, h, 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 */ - pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate); - - /* 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; -} - -static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty) { - int i, j, w, h; - 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 */ - - w = cblk->x1 - cblk->x0; - h = cblk->y1 - cblk->y0; - - /* Changed by Dmitry Kolyadin */ - for (j = 0; j <= h; j++) { - for (i = 0; i <= w; i++) { - t1->flags[j][i] = 0; - } - } - - /* Changed by Dmitry Kolyadin */ - for (i = 0; i < w; i++) { - for (j = 0; j < h; j++){ - t1->data[j][i] = 0; - } - } - - 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, w, h, bpno+1, orient, type, cblksty); - break; - case 1: - t1_dec_refpass(t1, w, h, bpno+1, type, cblksty); - break; - case 2: - t1_dec_clnpass(t1, w, h, 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--; - } - } - } -} - -static int t1_init_ctxno_zc(int f, int orient) { - int h, v, d, n, t, hv; - n = 0; - h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0); - v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0); - d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0); - - switch (orient) { - case 2: - t = h; - h = v; - v = t; - case 0: - case 1: - if (!h) { - if (!v) { - if (!d) - n = 0; - else if (d == 1) - n = 1; - else - n = 2; - } else if (v == 1) { - n = 3; - } else { - n = 4; - } - } else if (h == 1) { - if (!v) { - if (!d) - n = 5; - else - n = 6; - } else { - n = 7; - } - } else - n = 8; - break; - case 3: - hv = h + v; - if (!d) { - if (!hv) { - n = 0; - } else if (hv == 1) { - n = 1; - } else { - n = 2; - } - } else if (d == 1) { - if (!hv) { - n = 3; - } else if (hv == 1) { - n = 4; - } else { - n = 5; - } - } else if (d == 2) { - if (!hv) { - n = 6; - } else { - n = 7; - } - } else { - n = 8; - } - break; - } - - return (T1_CTXNO_ZC + n); -} - -static int t1_init_ctxno_sc(int f) { - int hc, vc, n; - n = 0; - - hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == - T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), - 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == - (T1_SIG_E | T1_SGN_E)) + - ((f & (T1_SIG_W | T1_SGN_W)) == - (T1_SIG_W | T1_SGN_W)), 1); - - vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == - T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), - 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == - (T1_SIG_N | T1_SGN_N)) + - ((f & (T1_SIG_S | T1_SGN_S)) == - (T1_SIG_S | T1_SGN_S)), 1); - - if (hc < 0) { - hc = -hc; - vc = -vc; - } - if (!hc) { - if (vc == -1) - n = 1; - else if (!vc) - n = 0; - else - n = 1; - } else if (hc == 1) { - if (vc == -1) - n = 2; - else if (!vc) - n = 3; - else - n = 4; - } - - return (T1_CTXNO_SC + n); -} - -static int t1_init_ctxno_mag(int f) { - int n; - if (!(f & T1_REFINE)) - n = (f & (T1_SIG_OTH)) ? 1 : 0; - else - n = 2; - - return (T1_CTXNO_MAG + n); -} - -static int t1_init_spb(int f) { - int hc, vc, n; - - hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == - T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), - 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == - (T1_SIG_E | T1_SGN_E)) + - ((f & (T1_SIG_W | T1_SGN_W)) == - (T1_SIG_W | T1_SGN_W)), 1); - - vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == - T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), - 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == - (T1_SIG_N | T1_SGN_N)) + - ((f & (T1_SIG_S | T1_SGN_S)) == - (T1_SIG_S | T1_SGN_S)), 1); - - if (!hc && !vc) - n = 0; - else - n = (!(hc > 0 || (!hc && vc > 0))); - - return n; -} - -static void t1_init_luts(opj_t1_t *t1) { - int i, j; - double u, v, t; - for (j = 0; j < 4; j++) { - for (i = 0; i < 256; ++i) { - t1->lut_ctxno_zc[(j << 8) | i] = t1_init_ctxno_zc(i, j); - } - } - for (i = 0; i < 256; i++) { - t1->lut_ctxno_sc[i] = t1_init_ctxno_sc(i << 4); - } - for (j = 0; j < 2; j++) { - for (i = 0; i < 2048; ++i) { - t1->lut_ctxno_mag[(j << 11) + i] = t1_init_ctxno_mag((j ? T1_REFINE : 0) | i); - } - } - for (i = 0; i < 256; ++i) { - t1->lut_spb[i] = t1_init_spb(i << 4); - } - /* FIXME FIXME FIXME */ - /* fprintf(stdout,"nmsedec luts:\n"); */ - for (i = 0; i < (1 << T1_NMSEDEC_BITS); i++) { - t = i / pow(2, T1_NMSEDEC_FRACBITS); - u = t; - v = t - 1.5; - t1->lut_nmsedec_sig[i] = - int_max(0, - (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); - t1->lut_nmsedec_sig0[i] = - int_max(0, - (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); - u = t - 1.0; - if (i & (1 << (T1_NMSEDEC_BITS - 1))) { - v = t - 1.5; - } else { - v = t - 0.5; - } - t1->lut_nmsedec_ref[i] = - int_max(0, - (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); - t1->lut_nmsedec_ref0[i] = - int_max(0, - (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); - } -} - -/* ----------------------------------------------------------------------- */ - -opj_t1_t* t1_create(opj_common_ptr cinfo) { - opj_t1_t *t1 = (opj_t1_t*)opj_malloc(sizeof(opj_t1_t)); - if(t1) { - t1->cinfo = cinfo; - /* create MQC and RAW handles */ - t1->mqc = mqc_create(); - t1->raw = raw_create(); - /* initialize the look-up tables of the Tier-1 coder/decoder */ - t1_init_luts(t1); - } - return t1; -} - -void t1_destroy(opj_t1_t *t1) { - if(t1) { - /* destroy MQC and RAW handles */ - mqc_destroy(t1->mqc); - raw_destroy(t1->raw); - opj_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; - int x, y, i, j, orient; - - 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++) { - opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; - - if (band->bandno == 0) { - x = cblk->x0 - band->x0; - y = cblk->y0 - band->y0; - } else if (band->bandno == 1) { - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = pres->x1 - pres->x0 + cblk->x0 - band->x0; - y = cblk->y0 - band->y0; - } else if (band->bandno == 2) { - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = cblk->x0 - band->x0; - y = pres->y1 - pres->y0 + cblk->y0 - band->y0; - } else { /* if (band->bandno == 3) */ - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = pres->x1 - pres->x0 + cblk->x0 - band->x0; - y = pres->y1 - pres->y0 + cblk->y0 - band->y0; - } - - if (tcp->tccps[compno].qmfbid == 1) { - for (j = 0; j < cblk->y1 - cblk->y0; j++) { - for (i = 0; i < cblk->x1 - cblk->x0; i++) { - t1->data[j][i] = - tilec->data[(x + i) + (y + j) * (tilec->x1 - tilec->x0)] << T1_NMSEDEC_FRACBITS; - } - } - } else if (tcp->tccps[compno].qmfbid == 0) { - for (j = 0; j < cblk->y1 - cblk->y0; j++) { - for (i = 0; i < cblk->x1 - cblk->x0; i++) { - t1->data[j][i] = - fix_mul( - tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)], - 8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (13 - 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, i, j, orient; - 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); - - if (band->bandno == 0) { - x = cblk->x0 - band->x0; - y = cblk->y0 - band->y0; - } else if (band->bandno == 1) { - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = pres->x1 - pres->x0 + cblk->x0 - band->x0; - y = cblk->y0 - band->y0; - } else if (band->bandno == 2) { - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = cblk->x0 - band->x0; - y = pres->y1 - pres->y0 + cblk->y0 - band->y0; - } else { /* if (band->bandno == 3) */ - opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; - x = pres->x1 - pres->x0 + cblk->x0 - band->x0; - y = pres->y1 - pres->y0 + cblk->y0 - band->y0; - } - - if (tcp->tccps[compno].roishift) { - int thresh, val, mag; - thresh = 1 << tcp->tccps[compno].roishift; - for (j = 0; j < cblk->y1 - cblk->y0; j++) { - for (i = 0; i < cblk->x1 - cblk->x0; i++) { - val = t1->data[j][i]; - mag = int_abs(val); - if (mag >= thresh) { - mag >>= tcp->tccps[compno].roishift; - t1->data[j][i] = val < 0 ? -mag : mag; - } - } - } - } - - if (tcp->tccps[compno].qmfbid == 1) { - for (j = 0; j < cblk->y1 - cblk->y0; j++) { - for (i = 0; i < cblk->x1 - cblk->x0; i++) { - int tmp = t1->data[j][i]; - if(tmp >> 1 == 0) { - tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = 0; - } else { - tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = tmp<0?(tmp>>1)+1:(tmp>>1); - } - } - } - } else { /* if (tcp->tccps[compno].qmfbid == 0) */ - for (j = 0; j < cblk->y1 - cblk->y0; j++) { - for (i = 0; i < cblk->x1 - cblk->x0; i++) { - double tmp = (double)(t1->data[j][i] * band->stepsize * 4096.0); - if (t1->data[j][i] >> 1 == 0) { - tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = 0; - } else { - int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2); - tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = ((tmp<0)?-tmp2:tmp2); - } - } - } - } - } /* cblkno */ - } /* precno */ - } /* bandno */ - } /* resno */ - } /* compno */ -} - +/* + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe + * Copyright (c) 2005, Hervé Drolon, FreeImage Team + * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium + * 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. + */ + +#include "opj_includes.h" + +/** @defgroup T1 T1 - Implementation of the tier-1 coding */ +/*@{*/ + +/** @name Local static functions */ +/*@{*/ + +static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient); +static int t1_getctxno_sc(opj_t1_t *t1, int f); +static int t1_getctxno_mag(opj_t1_t *t1, int f); +static int t1_getspb(opj_t1_t *t1, int f); +static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos); +static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos); +static void t1_updateflags(int *fp, int s); +/** +Encode significant pass +*/ +static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc); +/** +Decode significant pass +*/ +static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc); +/** +Encode significant pass +*/ +static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty); +/** +Decode significant pass +*/ +static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty); +/** +Encode refinement pass +*/ +static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc); +/** +Decode refinement pass +*/ +static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc); +/** +Encode refinement pass +*/ +static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty); +/** +Decode refinement pass +*/ +static void t1_dec_refpass(opj_t1_t *t1, int w, int h, int bpno, char type, int cblksty); +/** +Encode clean-up pass +*/ +static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, int partial, int vsc); +/** +Decode clean-up pass +*/ +static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc); +/** +Encode clean-up pass +*/ +static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, int cblksty); +/** +Decode clean-up pass +*/ +static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int cblksty); +static double t1_getwmsedec(int nmsedec, int compno, int level, int orient, int bpno, int qmfbid, double stepsize, int numcomps); +/** +Encode 1 code-block +@param t1 T1 handle +@param cblk Code-block coding parameters +@param orient +@param compno Component number +@param level +@param qmfbid +@param stepsize +@param cblksty Code-block style +@param numcomps +@param tile +*/ +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); +/** +Decode 1 code-block +@param t1 T1 handle +@param cblk Code-block coding parameters +@param orient +@param roishift Region of interest shifting value +@param cblksty Code-block style +*/ +static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty); +static int t1_init_ctxno_zc(int f, int orient); +static int t1_init_ctxno_sc(int f); +static int t1_init_ctxno_mag(int f); +static int t1_init_spb(int f); +/** +Initialize the look-up tables of the Tier-1 coder/decoder +@param t1 T1 handle +*/ +static void t1_init_luts(opj_t1_t *t1); + +/*@}*/ + +/*@}*/ + +/* ----------------------------------------------------------------------- */ + +static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient) { + return t1->lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)]; +} + +static int t1_getctxno_sc(opj_t1_t *t1, int f) { + return t1->lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; +} + +static int t1_getctxno_mag(opj_t1_t *t1, int f) { + return t1->lut_ctxno_mag[(f & T1_SIG_OTH) | (((f & T1_REFINE) != 0) << 11)]; +} + +static int t1_getspb(opj_t1_t *t1, int f) { + return t1->lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; +} + +static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos) { + if (bitpos > T1_NMSEDEC_FRACBITS) { + return t1->lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; + } + + return t1->lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; +} + +static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos) { + if (bitpos > T1_NMSEDEC_FRACBITS) { + return t1->lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; + } + + return t1->lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; +} + +static void t1_updateflags(int *fp, int s) { + int *np = fp - (T1_MAXCBLKW + 2); + int *sp = fp + (T1_MAXCBLKW + 2); + np[-1] |= T1_SIG_SE; + np[1] |= T1_SIG_SW; + sp[-1] |= T1_SIG_NE; + sp[1] |= T1_SIG_NW; + *np |= T1_SIG_S; + *sp |= T1_SIG_N; + fp[-1] |= T1_SIG_E; + fp[1] |= T1_SIG_W; + if (s) { + *np |= T1_SGN_S; + *sp |= T1_SGN_N; + fp[-1] |= T1_SGN_E; + fp[1] |= T1_SGN_W; + } +} + +static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { + v = int_abs(*dp) & one ? 1 : 0; + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + mqc_encode(mqc, v); + } + if (v) { + v = *dp < 0 ? 1 : 0; + *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + mqc_encode(mqc, v ^ t1_getspb(t1, flag)); + } + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + *fp |= T1_VISIT; + } +} + +static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc) { + int v, flag; + + opj_raw_t *raw = t1->raw; /* RAW component */ + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { + if (type == T1_TYPE_RAW) { + if (raw_decode(raw)) { + v = raw_decode(raw); /* ESSAI */ + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } else { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + if (mqc_decode(mqc)) { + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = mqc_decode(mqc) ^ t1_getspb(t1, flag); + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp |= T1_VISIT; + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty) { + int i, j, k, one, vsc; + *nmsedec = 0; + one = 1 << (bpno + T1_NMSEDEC_FRACBITS); + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, type, vsc); + } + } + } +} + +static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty) { + int i, j, k, one, half, oneplushalf, vsc; + one = 1 << bpno; + half = one >> 1; + oneplushalf = one | half; + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, oneplushalf, type, vsc); + } + } + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { + *nmsedec += t1_getnmsedec_ref(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + v = int_abs(*dp) & one ? 1 : 0; + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); + mqc_encode(mqc, v); + } + *fp |= T1_REFINE; + } +} + +static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc) { + int v, t, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + opj_raw_t *raw = t1->raw; /* RAW component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { + if (type == T1_TYPE_RAW) { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ + v = raw_decode(raw); + } else { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); + v = mqc_decode(mqc); + } + t = v ? poshalf : neghalf; + *dp += *dp < 0 ? -t : t; + *fp |= T1_REFINE; + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty) { + int i, j, k, one, vsc; + *nmsedec = 0; + one = 1 << (bpno + T1_NMSEDEC_FRACBITS); + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], bpno, one, nmsedec, type, vsc); + } + } + } +} + +static void t1_dec_refpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], poshalf, neghalf, type, vsc); + } + } + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, 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 ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if (partial) { + goto LABEL_PARTIAL; + } + if (!(*fp & (T1_SIG | T1_VISIT))) { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + v = int_abs(*dp) & one ? 1 : 0; + mqc_encode(mqc, v); + if (v) { +LABEL_PARTIAL: + *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = *dp < 0 ? 1 : 0; + mqc_encode(mqc, v ^ t1_getspb(t1, flag)); + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp &= ~T1_VISIT; +} + +static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if (partial) { + goto LABEL_PARTIAL; + } + if (!(flag & (T1_SIG | T1_VISIT))) { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + if (mqc_decode(mqc)) { +LABEL_PARTIAL: + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = mqc_decode(mqc) ^ t1_getspb(t1, flag); + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp &= ~T1_VISIT; +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { + for (i = 0; i < w; i++) { + if (k + 3 < h) { + if (cblksty & J2K_CCP_CBLKSTY_VSC) { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || (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 = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || 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][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 < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, agg && (j == k + runlen), vsc); + } + } + } +} + +static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, 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 < h; k += 4) { + for (i = 0; i < w; i++) { + if (k + 3 < h) { + if (cblksty & J2K_CCP_CBLKSTY_VSC) { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || (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 = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || 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 < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][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; + w2 = dwt_getnorm(level, orient); + } else { /* if (qmfbid == 0) */ + w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1; + w2 = dwt_getnorm_real(level, orient); + } + wmsedec = w1 * w2 * stepsize * (1 << bpno); + wmsedec *= wmsedec * nmsedec / 8192.0; + + return wmsedec; +} + +/** 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 w, h; + int passno; + int bpno, passtype; + int max; + int nmsedec = 0; + double cumwmsedec = 0; + char type = T1_TYPE_MQ; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + w = cblk->x1 - cblk->x0; + h = cblk->y1 - cblk->y0; + + max = 0; + for (j = 0; j < h; j++) { + for (i = 0; i < w; i++) { + max = int_max(max, int_abs(t1->data[j][i])); + } + } + + cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0; + + /* Changed by Dmitry Kolyadin */ + for (i = 0; i <= w; i++) { + for (j = 0; j <= h; j++) { + t1->flags[j][i] = 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, w, h, bpno, orient, &nmsedec, type, cblksty); + break; + case 1: + t1_enc_refpass(t1, w, h, bpno, &nmsedec, type, cblksty); + break; + case 2: + t1_enc_clnpass(t1, w, h, 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 */ + pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate); + + /* 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; +} + +static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty) { + int i, j, w, h; + 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 */ + + w = cblk->x1 - cblk->x0; + h = cblk->y1 - cblk->y0; + + /* Changed by Dmitry Kolyadin */ + for (j = 0; j <= h; j++) { + for (i = 0; i <= w; i++) { + t1->flags[j][i] = 0; + } + } + + /* Changed by Dmitry Kolyadin */ + for (i = 0; i < w; i++) { + for (j = 0; j < h; j++){ + t1->data[j][i] = 0; + } + } + + 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, w, h, bpno+1, orient, type, cblksty); + break; + case 1: + t1_dec_refpass(t1, w, h, bpno+1, type, cblksty); + break; + case 2: + t1_dec_clnpass(t1, w, h, 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--; + } + } + } +} + +static int t1_init_ctxno_zc(int f, int orient) { + int h, v, d, n, t, hv; + n = 0; + h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0); + v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0); + d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0); + + switch (orient) { + case 2: + t = h; + h = v; + v = t; + case 0: + case 1: + if (!h) { + if (!v) { + if (!d) + n = 0; + else if (d == 1) + n = 1; + else + n = 2; + } else if (v == 1) { + n = 3; + } else { + n = 4; + } + } else if (h == 1) { + if (!v) { + if (!d) + n = 5; + else + n = 6; + } else { + n = 7; + } + } else + n = 8; + break; + case 3: + hv = h + v; + if (!d) { + if (!hv) { + n = 0; + } else if (hv == 1) { + n = 1; + } else { + n = 2; + } + } else if (d == 1) { + if (!hv) { + n = 3; + } else if (hv == 1) { + n = 4; + } else { + n = 5; + } + } else if (d == 2) { + if (!hv) { + n = 6; + } else { + n = 7; + } + } else { + n = 8; + } + break; + } + + return (T1_CTXNO_ZC + n); +} + +static int t1_init_ctxno_sc(int f) { + int hc, vc, n; + n = 0; + + hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (hc < 0) { + hc = -hc; + vc = -vc; + } + if (!hc) { + if (vc == -1) + n = 1; + else if (!vc) + n = 0; + else + n = 1; + } else if (hc == 1) { + if (vc == -1) + n = 2; + else if (!vc) + n = 3; + else + n = 4; + } + + return (T1_CTXNO_SC + n); +} + +static int t1_init_ctxno_mag(int f) { + int n; + if (!(f & T1_REFINE)) + n = (f & (T1_SIG_OTH)) ? 1 : 0; + else + n = 2; + + return (T1_CTXNO_MAG + n); +} + +static int t1_init_spb(int f) { + int hc, vc, n; + + hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (!hc && !vc) + n = 0; + else + n = (!(hc > 0 || (!hc && vc > 0))); + + return n; +} + +static void t1_init_luts(opj_t1_t *t1) { + int i, j; + double u, v, t; + for (j = 0; j < 4; j++) { + for (i = 0; i < 256; ++i) { + t1->lut_ctxno_zc[(j << 8) | i] = t1_init_ctxno_zc(i, j); + } + } + for (i = 0; i < 256; i++) { + t1->lut_ctxno_sc[i] = t1_init_ctxno_sc(i << 4); + } + for (j = 0; j < 2; j++) { + for (i = 0; i < 2048; ++i) { + t1->lut_ctxno_mag[(j << 11) + i] = t1_init_ctxno_mag((j ? T1_REFINE : 0) | i); + } + } + for (i = 0; i < 256; ++i) { + t1->lut_spb[i] = t1_init_spb(i << 4); + } + /* FIXME FIXME FIXME */ + /* fprintf(stdout,"nmsedec luts:\n"); */ + for (i = 0; i < (1 << T1_NMSEDEC_BITS); i++) { + t = i / pow(2, T1_NMSEDEC_FRACBITS); + u = t; + v = t - 1.5; + t1->lut_nmsedec_sig[i] = + int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + t1->lut_nmsedec_sig0[i] = + int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + u = t - 1.0; + if (i & (1 << (T1_NMSEDEC_BITS - 1))) { + v = t - 1.5; + } else { + v = t - 0.5; + } + t1->lut_nmsedec_ref[i] = + int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + t1->lut_nmsedec_ref0[i] = + int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + } +} + +/* ----------------------------------------------------------------------- */ + +opj_t1_t* t1_create(opj_common_ptr cinfo) { + opj_t1_t *t1 = (opj_t1_t*)opj_malloc(sizeof(opj_t1_t)); + if(t1) { + t1->cinfo = cinfo; + /* create MQC and RAW handles */ + t1->mqc = mqc_create(); + t1->raw = raw_create(); + /* initialize the look-up tables of the Tier-1 coder/decoder */ + t1_init_luts(t1); + } + return t1; +} + +void t1_destroy(opj_t1_t *t1) { + if(t1) { + /* destroy MQC and RAW handles */ + mqc_destroy(t1->mqc); + raw_destroy(t1->raw); + opj_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; + int x, y, i, j, orient; + + 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++) { + opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; + + if (band->bandno == 0) { + x = cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 1) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 2) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } else { /* if (band->bandno == 3) */ + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } + + if (tcp->tccps[compno].qmfbid == 1) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + t1->data[j][i] = + tilec->data[(x + i) + (y + j) * (tilec->x1 - tilec->x0)] << T1_NMSEDEC_FRACBITS; + } + } + } else if (tcp->tccps[compno].qmfbid == 0) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + t1->data[j][i] = + fix_mul( + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)], + 8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (13 - 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, i, j, orient; + 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); + + if (band->bandno == 0) { + x = cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 1) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 2) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } else { /* if (band->bandno == 3) */ + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } + + if (tcp->tccps[compno].roishift) { + int thresh, val, mag; + thresh = 1 << tcp->tccps[compno].roishift; + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + val = t1->data[j][i]; + mag = int_abs(val); + if (mag >= thresh) { + mag >>= tcp->tccps[compno].roishift; + t1->data[j][i] = val < 0 ? -mag : mag; + } + } + } + } + + if (tcp->tccps[compno].qmfbid == 1) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + int tmp = t1->data[j][i]; + if(tmp >> 1 == 0) { + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = 0; + } else { + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = tmp<0?(tmp>>1)+1:(tmp>>1); + } + } + } + } else { /* if (tcp->tccps[compno].qmfbid == 0) */ + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + double tmp = (double)(t1->data[j][i] * band->stepsize * 4096.0); + if (t1->data[j][i] >> 1 == 0) { + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = 0; + } else { + int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2); + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = ((tmp<0)?-tmp2:tmp2); + } + } + } + } + } /* cblkno */ + } /* precno */ + } /* bandno */ + } /* resno */ + } /* compno */ +} +