/* * The copyright in this software is being made available under the 2-clauses * BSD License, included below. This software may be subject to other third * party and contributor rights, including patent rights, and no such rights * are granted under this license. * * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe * Copyright (c) 2005, Herve 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 l, 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 l, 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 l, 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 l, 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 l, 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 l, int bpno, int orient, int cblksty); /** Encode 1 code-block @param t1 T1 handle @param cblk Code-block coding parameters @param orient @param compno Component number @param level @param dwtid @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[3], int dwtid[3], 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 l, int bpno, int orient, int *nmsedec, char type, int cblksty) { int i, j, k, m, one, vsc; *nmsedec = 0; one = 1 << (bpno + T1_NMSEDEC_FRACBITS); for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { for (j = k; j < k + 4 && j < h; j++) { vsc = ((cblksty & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_enc_sigpass_step(t1, &t1->flags[1 + m][1 + j][1 + i], &t1->data[m][j][i], orient, bpno, one, nmsedec, type, vsc); } } } } } static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int l, int bpno, int orient, char type, int cblksty) { int i, j, k, m, one, half, oneplushalf, vsc; one = 1 << bpno; half = one >> 1; oneplushalf = one | half; for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { for (j = k; j < k + 4 && j < h; j++) { vsc = ((cblksty & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_dec_sigpass_step(t1, &t1->flags[1 + m][1 + j][1 + i], &t1->data[m][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 l, int bpno, int *nmsedec, char type, int cblksty) { int i, j, k, m, one, vsc; *nmsedec = 0; one = 1 << (bpno + T1_NMSEDEC_FRACBITS); for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { for (j = k; j < k + 4 && j < h; j++) { vsc = ((cblksty & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_enc_refpass_step(t1, &t1->flags[1 + m][1 + j][1 + i], &t1->data[m][j][i], bpno, one, nmsedec, type, vsc); } } } } } static void t1_dec_refpass(opj_t1_t *t1, int w, int h, int l, int bpno, char type, int cblksty) { int i, j, k, m, one, poshalf, neghalf; int vsc; one = 1 << bpno; poshalf = one >> 1; neghalf = bpno > 0 ? -poshalf : -1; for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { for (j = k; j < k + 4 && j < h; j++) { vsc = ((cblksty & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_dec_refpass_step(t1, &t1->flags[1 + m][1 + j][1 + i], &t1->data[m][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 l, int bpno, int orient, int *nmsedec, int cblksty) { int i, j, k, m, one, agg, runlen, vsc; opj_mqc_t *mqc = t1->mqc; /* MQC component */ *nmsedec = 0; one = 1 << (bpno + T1_NMSEDEC_FRACBITS); for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { if (k + 3 < h) { if (cblksty & J3D_CCP_CBLKSTY_VSC) { agg = !(t1->flags[1 + m][1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || (t1->flags[1 + m][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 + m][1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][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[m][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 & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_enc_clnpass_step(t1, &(t1->flags[1 + m][1 + j][1 + i]), &(t1->data[m][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 l, int bpno, int orient, int cblksty) { int i, j, k, m, one, half, oneplushalf, agg, runlen, vsc; int segsym = cblksty & J3D_CCP_CBLKSTY_SEGSYM; opj_mqc_t *mqc = t1->mqc; /* MQC component */ one = 1 << bpno; half = one >> 1; oneplushalf = one | half; for (m = 0; m < l; m++) { for (k = 0; k < h; k += 4) { for (i = 0; i < w; i++) { if (k + 3 < h) { if (cblksty & J3D_CCP_CBLKSTY_VSC) { agg = !(t1->flags[1 + m][1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || (t1->flags[1 + m][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 + m][1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) || t1->flags[1 + m][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 & J3D_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; t1_dec_clnpass_step(t1, &t1->flags[1 + m][1 + j][1 + i], &t1->data[m][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 */ static void t1_encode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int compno, int level[3], int dwtid[3], double stepsize, int cblksty, int numcomps, opj_tcd_tile_t * tile) { int i, j, k; int w, h, l; 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; l = cblk->z1 - cblk->z0; max = 0; for (k = 0; k < l; k++) { for (j = 0; j < h; j++) { for (i = 0; i < w; i++) { max = int_max(max, int_abs(t1->data[k][j][i])); } } } for (k = 0; k <= l; k++) { for (j = 0; j <= h; j++) { for (i = 0; i <= w; i++) { t1->flags[k][j][i] = 0; } } } cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0; bpno = cblk->numbps - 1; passtype = 2; mqc_reset_enc(mqc); mqc_init_enc(mqc, cblk->data); for (passno = 0; bpno >= 0; passno++) { opj_tcd_pass_t *pass = &cblk->passes[passno]; int correction = 3; double tmpwmsedec; type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J3D_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; /*fprintf(stdout,"passno %d passtype %d w %d h %d l %d bpno %d orient %d type %d cblksty %d\n",passno,passtype,w,h,l,bpno,orient,type,cblksty);*/ switch (passtype) { case 0: t1_enc_sigpass(t1, w, h, l, bpno, orient, &nmsedec, type, cblksty); break; case 1: t1_enc_refpass(t1, w, h, l, bpno, &nmsedec, type, cblksty); break; case 2: /*fprintf(stdout,"w %d h %d l %d bpno %d orient %d \n",w,h,l,bpno,orient);*/ t1_enc_clnpass(t1, w, h, l, bpno, orient, &nmsedec, cblksty); /* code switch SEGMARK (i.e. SEGSYM) */ if (cblksty & J3D_CCP_CBLKSTY_SEGSYM) { mqc_segmark_enc(mqc); } break; } /* fixed_quality */ tmpwmsedec = t1_getwmsedec(nmsedec, compno, level, orient, bpno, stepsize, numcomps, dwtid); cumwmsedec += tmpwmsedec; tile->distotile += tmpwmsedec; /* Code switch "RESTART" (i.e. TERMALL) */ if ((cblksty & J3D_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 & J3D_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 & J3D_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 & J3D_CCP_CBLKSTY_RESET) { mqc_reset_enc(mqc); } } /* Code switch "ERTERM" (i.e. PTERM) */ if (cblksty & J3D_CCP_CBLKSTY_PTERM) { mqc_erterm_enc(mqc); } else /* Default coding */ if (!(cblksty & J3D_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, k, w, h, l; 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; l = cblk->z1 - cblk->z0; for (k = 0; k < l; k++) { for (j = 0; j < h; j++) { for (i = 0; i < w; i++) { t1->data[k][j][i] = 0; } } } for (k = 0; k <= l; k++) { for (j = 0; j <= h; j++) { for (i = 0; i <= w; i++) { t1->flags[k][j][i] = 0; } } } bpno = roishift + cblk->numbps - 1; passtype = 2; mqc_reset_enc(mqc); 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 & J3D_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, l, bpno + 1, orient, type, cblksty); break; case 1: t1_dec_refpass(t1, w, h, l, bpno + 1, type, cblksty); break; case 2: t1_dec_clnpass(t1, w, h, l, bpno + 1, orient, cblksty); break; } if ((cblksty & J3D_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) { mqc_reset_enc(mqc); } 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->data);*/ /*opj_free(t1->flags);*/ 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, z, i, j, k, orient; int n = 0; int level[3]; FILE *fid = NULL; /* char filename[10];*/ 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->numresolution[0]; resno++) { opj_tcd_resolution_t *res = &tilec->resolutions[resno]; /* Weighted first order entropy sprintf(filename,"res%d.txt",resno); if ((fid = fopen(filename,"w")) == 0){ fprintf(stdout,"Error while opening %s\n", filename); exit(1); } */ for (bandno = 0; bandno < res->numbands; bandno++) { opj_tcd_band_t *band = &res->bands[bandno]; for (precno = 0; precno < res->prctno[0] * res->prctno[1] * res->prctno[2]; precno++) { opj_tcd_precinct_t *prc = &band->precincts[precno]; for (cblkno = 0; cblkno < prc->cblkno[0] * prc->cblkno[1] * prc->cblkno[2]; cblkno++) { opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; /*fprintf(stdout,"Precno %d Cblkno %d \n",precno,cblkno);*/ if (band->bandno == 0) { x = cblk->x0 - band->x0; y = cblk->y0 - band->y0; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } else if (band->bandno == 4) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = cblk->x0 - band->x0; y = cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 5) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = pres->x1 - pres->x0 + cblk->x0 - band->x0; y = cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 6) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = cblk->x0 - band->x0; y = pres->y1 - pres->y0 + cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 7) { 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; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } if (tcp->tccps[compno].reversible == 1) { for (k = 0; k < cblk->z1 - cblk->z0; k++) { for (j = 0; j < cblk->y1 - cblk->y0; j++) { for (i = 0; i < cblk->x1 - cblk->x0; i++) { t1->data[k][j][i] = tilec->data[(x + i) + (y + j) * (tilec->x1 - tilec->x0) + (z + k) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0)] << T1_NMSEDEC_FRACBITS; /*fprintf(fid," %d",t1->data[k][j][i]);*/ } } } } else if (tcp->tccps[compno].reversible == 0) { for (k = 0; k < cblk->z1 - cblk->z0; k++) { for (j = 0; j < cblk->y1 - cblk->y0; j++) { for (i = 0; i < cblk->x1 - cblk->x0; i++) { t1->data[k][j][i] = fix_mul( tilec->data[(x + i) + (y + j) * (tilec->x1 - tilec->x0) + (z + k) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0)], 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; } for (i = 0; i < 3; i++) { level[i] = tilec->numresolution[i] - 1 - resno; } /*fprintf(stdout,"t1_encode_cblk(t1, cblk, %d, %d, %d %d %d, %d, %f, %d, %d, tile);\n", orient, compno, level[0], level[1], level[2], tcp->tccps[compno].reversible, band->stepsize, tcp->tccps[compno].cblksty, tile->numcomps);*/ t1_encode_cblk(t1, cblk, orient, compno, level, tcp->tccps[compno].dwtid, band->stepsize, tcp->tccps[compno].cblksty, tile->numcomps, tile); } /* cblkno */ } /* precno */ /*fprintf(fid,"\n");*/ } /* bandno */ /*fclose(fid);*/ } /* 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->numresolution[0]; 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->prctno[0] * res->prctno[1] * res->prctno[2]; precno++) { opj_tcd_precinct_t *prc = &band->precincts[precno]; for (cblkno = 0; cblkno < prc->cblkno[0] * prc->cblkno[1] * prc->cblkno[2]; cblkno++) { int x, y, k, i, j, z, 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; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } 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; z = cblk->z0 - band->z0; } else if (band->bandno == 4) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = cblk->x0 - band->x0; y = cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 5) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = pres->x1 - pres->x0 + cblk->x0 - band->x0; y = cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 6) { opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; x = cblk->x0 - band->x0; y = pres->y1 - pres->y0 + cblk->y0 - band->y0; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } else if (band->bandno == 7) { 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; z = pres->z1 - pres->z0 + cblk->z0 - band->z0; } if (tcp->tccps[compno].roishift) { int thresh, val, mag; thresh = 1 << tcp->tccps[compno].roishift; for (k = 0; k < cblk->z1 - cblk->z0; k++) { for (j = 0; j < cblk->y1 - cblk->y0; j++) { for (i = 0; i < cblk->x1 - cblk->x0; i++) { val = t1->data[k][j][i]; mag = int_abs(val); if (mag >= thresh) { mag >>= tcp->tccps[compno].roishift; t1->data[k][j][i] = val < 0 ? -mag : mag; } } } } } if (tcp->tccps[compno].reversible == 1) { for (k = 0; k < cblk->z1 - cblk->z0; k++) { for (j = 0; j < cblk->y1 - cblk->y0; j++) { for (i = 0; i < cblk->x1 - cblk->x0; i++) { int tmp = t1->data[k][j][i]; tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0) + (z + k) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0)] = tmp / 2; } } } } else { /* if (tcp->tccps[compno].reversible == 0) */ for (k = 0; k < cblk->z1 - cblk->z0; k++) { for (j = 0; j < cblk->y1 - cblk->y0; j++) { for (i = 0; i < cblk->x1 - cblk->x0; i++) { double tmp = (double)(t1->data[k][j][i] * band->stepsize * 4096.0); if (t1->data[k][j][i] >> 1 == 0) { tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0) + (z + k) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0)] = 0; } else { int tmp2 = ((int)(floor(fabs(tmp)))) + ((int) floor(fabs(tmp * 2)) % 2); tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0) + (z + k) * (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0)] = ((tmp < 0) ? -tmp2 : tmp2); } } } } } } /* cblkno */ } /* precno */ } /* bandno */ } /* resno */ } /* compno */ } /** mod fixed_quality */ double t1_getwmsedec(int nmsedec, int compno, int level[3], int orient, int bpno, double stepsize, int numcomps, int dwtid[3]) { double w1, w2, wmsedec; if (dwtid[0] == 1 || dwtid[1] == 1 || dwtid[2] == 1) { w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1; } else { w1 = (numcomps > 1) ? mct_getnorm(compno) : 1; } w2 = dwt_getnorm(orient, level, dwtid); /*fprintf(stdout,"nmsedec %d level %d %d %d orient %d bpno %d stepsize %f \n",nmsedec ,level[0],level[1],level[2],orient,bpno,stepsize);*/ wmsedec = w1 * w2 * stepsize * (1 << bpno); wmsedec *= wmsedec * nmsedec / 8192.0; return wmsedec; } /** mod fixed_quality */