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960 lines
25 KiB
C
960 lines
25 KiB
C
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/*
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* Copyright (c) 1999-2000 Image Power, Inc. and the University of
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* British Columbia.
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* Copyright (c) 2001-2002 Michael David Adams.
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* All rights reserved.
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*/
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/* __START_OF_JASPER_LICENSE__
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*
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* JasPer License Version 2.0
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*
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* Copyright (c) 2001-2006 Michael David Adams
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* Copyright (c) 1999-2000 Image Power, Inc.
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* Copyright (c) 1999-2000 The University of British Columbia
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person (the
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* "User") obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, and/or sell copies of the Software, and to permit
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* persons to whom the Software is furnished to do so, subject to the
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* following conditions:
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*
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* 1. The above copyright notices and this permission notice (which
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* includes the disclaimer below) shall be included in all copies or
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* substantial portions of the Software.
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*
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* 2. The name of a copyright holder shall not be used to endorse or
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* promote products derived from the Software without specific prior
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* written permission.
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*
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
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*
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* __END_OF_JASPER_LICENSE__
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*/
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/*
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* Tier 1 Encoder
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*
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* $Id: jpc_t1enc.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
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*/
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/******************************************************************************\
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* Includes.
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\******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include "jasper/jas_fix.h"
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#include "jasper/jas_malloc.h"
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#include "jasper/jas_math.h"
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#include "jpc_t1enc.h"
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#include "jpc_t1cod.h"
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#include "jpc_enc.h"
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#include "jpc_cod.h"
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#include "jpc_math.h"
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static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
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jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
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static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int, jas_matrix_t *flags,
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jas_matrix_t *data, int term, long *nmsedec);
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static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int,
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int, jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
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static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int,
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jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
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static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int,
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jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec);
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/******************************************************************************\
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* Code for encoding code blocks.
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\******************************************************************************/
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/* Encode all of the code blocks associated with the current tile. */
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int jpc_enc_enccblks(jpc_enc_t *enc)
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{
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jpc_enc_tcmpt_t *tcmpt;
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jpc_enc_tcmpt_t *endcomps;
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jpc_enc_rlvl_t *lvl;
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jpc_enc_rlvl_t *endlvls;
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jpc_enc_band_t *band;
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jpc_enc_band_t *endbands;
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jpc_enc_cblk_t *cblk;
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jpc_enc_cblk_t *endcblks;
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int i;
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int j;
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int mx;
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int bmx;
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int v;
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jpc_enc_tile_t *tile;
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uint_fast32_t prcno;
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jpc_enc_prc_t *prc;
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tile = enc->curtile;
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endcomps = &tile->tcmpts[tile->numtcmpts];
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for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) {
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endlvls = &tcmpt->rlvls[tcmpt->numrlvls];
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for (lvl = tcmpt->rlvls; lvl != endlvls; ++lvl) {
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if (!lvl->bands) {
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continue;
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}
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endbands = &lvl->bands[lvl->numbands];
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for (band = lvl->bands; band != endbands; ++band) {
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if (!band->data) {
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continue;
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}
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for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
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if (!prc->cblks) {
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continue;
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}
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bmx = 0;
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endcblks = &prc->cblks[prc->numcblks];
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for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
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mx = 0;
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for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) {
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for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) {
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v = abs(jas_matrix_get(cblk->data, i, j));
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if (v > mx) {
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mx = v;
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}
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}
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}
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if (mx > bmx) {
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bmx = mx;
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}
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cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0);
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}
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for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
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cblk->numimsbs = band->numbps - cblk->numbps;
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assert(cblk->numimsbs >= 0);
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}
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for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
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if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) {
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return -1;
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}
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}
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}
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}
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}
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}
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return 0;
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}
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int getthebyte(jas_stream_t *in, long off)
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{
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int c;
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long oldpos;
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oldpos = jas_stream_tell(in);
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assert(oldpos >= 0);
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jas_stream_seek(in, off, SEEK_SET);
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c = jas_stream_peekc(in);
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jas_stream_seek(in, oldpos, SEEK_SET);
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return c;
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}
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/* Encode a single code block. */
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int jpc_enc_enccblk(jpc_enc_t *enc, jas_stream_t *out, jpc_enc_tcmpt_t *tcmpt, jpc_enc_band_t *band, jpc_enc_cblk_t *cblk)
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{
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jpc_enc_pass_t *pass;
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jpc_enc_pass_t *endpasses;
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int bitpos;
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int n;
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int adjust;
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int ret;
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int passtype;
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int t;
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jpc_bitstream_t *bout;
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jpc_enc_pass_t *termpass;
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jpc_enc_rlvl_t *rlvl;
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int vcausal;
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int segsym;
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int termmode;
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int c;
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bout = 0;
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rlvl = band->rlvl;
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cblk->stream = jas_stream_memopen(0, 0);
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assert(cblk->stream);
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cblk->mqenc = jpc_mqenc_create(JPC_NUMCTXS, cblk->stream);
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assert(cblk->mqenc);
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jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
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cblk->numpasses = (cblk->numbps > 0) ? (3 * cblk->numbps - 2) : 0;
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if (cblk->numpasses > 0) {
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cblk->passes = jas_malloc(cblk->numpasses * sizeof(jpc_enc_pass_t));
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assert(cblk->passes);
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} else {
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cblk->passes = 0;
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}
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endpasses = &cblk->passes[cblk->numpasses];
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for (pass = cblk->passes; pass != endpasses; ++pass) {
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pass->start = 0;
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pass->end = 0;
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pass->term = JPC_ISTERMINATED(pass - cblk->passes, 0, cblk->numpasses, (tcmpt->cblksty & JPC_COX_TERMALL) != 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
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pass->type = JPC_SEGTYPE(pass - cblk->passes, 0, (tcmpt->cblksty & JPC_COX_LAZY) != 0);
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pass->lyrno = -1;
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if (pass == endpasses - 1) {
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assert(pass->term == 1);
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pass->term = 1;
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}
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}
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cblk->flags = jas_matrix_create(jas_matrix_numrows(cblk->data) + 2,
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jas_matrix_numcols(cblk->data) + 2);
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assert(cblk->flags);
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bitpos = cblk->numbps - 1;
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pass = cblk->passes;
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n = cblk->numpasses;
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while (--n >= 0) {
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if (pass->type == JPC_SEG_MQ) {
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/* NOP */
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} else {
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assert(pass->type == JPC_SEG_RAW);
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if (!bout) {
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bout = jpc_bitstream_sopen(cblk->stream, "w");
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assert(bout);
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}
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}
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#if 1
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passtype = (pass - cblk->passes + 2) % 3;
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#else
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passtype = JPC_PASSTYPE(pass - cblk->passes + 2);
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#endif
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pass->start = jas_stream_tell(cblk->stream);
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#if 0
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assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
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#endif
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assert(bitpos >= 0);
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vcausal = (tcmpt->cblksty & JPC_COX_VSC) != 0;
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segsym = (tcmpt->cblksty & JPC_COX_SEGSYM) != 0;
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if (pass->term) {
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termmode = ((tcmpt->cblksty & JPC_COX_PTERM) ?
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JPC_MQENC_PTERM : JPC_MQENC_DEFTERM) + 1;
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} else {
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termmode = 0;
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}
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switch (passtype) {
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case JPC_SIGPASS:
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ret = (pass->type == JPC_SEG_MQ) ? jpc_encsigpass(cblk->mqenc,
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bitpos, band->orient, vcausal, cblk->flags,
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cblk->data, termmode, &pass->nmsedec) :
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jpc_encrawsigpass(bout, bitpos, vcausal, cblk->flags,
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cblk->data, termmode, &pass->nmsedec);
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break;
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case JPC_REFPASS:
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ret = (pass->type == JPC_SEG_MQ) ? jpc_encrefpass(cblk->mqenc,
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bitpos, vcausal, cblk->flags, cblk->data, termmode,
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&pass->nmsedec) : jpc_encrawrefpass(bout, bitpos,
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vcausal, cblk->flags, cblk->data, termmode,
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&pass->nmsedec);
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break;
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case JPC_CLNPASS:
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assert(pass->type == JPC_SEG_MQ);
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ret = jpc_encclnpass(cblk->mqenc, bitpos, band->orient,
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vcausal, segsym, cblk->flags, cblk->data, termmode,
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&pass->nmsedec);
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break;
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default:
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assert(0);
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break;
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}
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if (pass->type == JPC_SEG_MQ) {
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if (pass->term) {
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jpc_mqenc_init(cblk->mqenc);
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}
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jpc_mqenc_getstate(cblk->mqenc, &pass->mqencstate);
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pass->end = jas_stream_tell(cblk->stream);
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if (tcmpt->cblksty & JPC_COX_RESET) {
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jpc_mqenc_setctxs(cblk->mqenc, JPC_NUMCTXS, jpc_mqctxs);
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}
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} else {
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if (pass->term) {
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if (jpc_bitstream_pending(bout)) {
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jpc_bitstream_outalign(bout, 0x2a);
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}
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jpc_bitstream_close(bout);
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bout = 0;
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pass->end = jas_stream_tell(cblk->stream);
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} else {
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pass->end = jas_stream_tell(cblk->stream) +
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jpc_bitstream_pending(bout);
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/* NOTE - This will not work. need to adjust by # of pending output bytes */
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}
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}
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#if 0
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/* XXX - This assertion fails sometimes when various coding modes are used.
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This seems to be harmless, but why does it happen at all? */
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assert(jas_stream_tell(cblk->stream) == jas_stream_getrwcount(cblk->stream));
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#endif
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pass->wmsedec = jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
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jpc_fixtodbl(band->rlvl->tcmpt->synweight) *
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jpc_fixtodbl(band->synweight) *
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jpc_fixtodbl(band->synweight) *
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jpc_fixtodbl(band->absstepsize) * jpc_fixtodbl(band->absstepsize) *
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((double) (1 << bitpos)) * ((double)(1 << bitpos)) *
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jpc_fixtodbl(pass->nmsedec);
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pass->cumwmsedec = pass->wmsedec;
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if (pass != cblk->passes) {
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pass->cumwmsedec += pass[-1].cumwmsedec;
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}
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if (passtype == JPC_CLNPASS) {
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--bitpos;
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}
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++pass;
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}
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#if 0
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dump_passes(cblk->passes, cblk->numpasses, cblk);
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#endif
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n = 0;
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endpasses = &cblk->passes[cblk->numpasses];
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for (pass = cblk->passes; pass != endpasses; ++pass) {
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if (pass->start < n) {
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pass->start = n;
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}
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if (pass->end < n) {
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pass->end = n;
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}
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if (!pass->term) {
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termpass = pass;
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while (termpass - pass < cblk->numpasses &&
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!termpass->term) {
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++termpass;
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}
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if (pass->type == JPC_SEG_MQ) {
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t = (pass->mqencstate.lastbyte == 0xff) ? 1 : 0;
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if (pass->mqencstate.ctreg >= 5) {
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adjust = 4 + t;
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} else {
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adjust = 5 + t;
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}
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pass->end += adjust;
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}
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if (pass->end > termpass->end) {
|
||
|
pass->end = termpass->end;
|
||
|
}
|
||
|
if ((c = getthebyte(cblk->stream, pass->end - 1)) == EOF) {
|
||
|
abort();
|
||
|
}
|
||
|
if (c == 0xff) {
|
||
|
++pass->end;
|
||
|
}
|
||
|
n = JAS_MAX(n, pass->end);
|
||
|
} else {
|
||
|
n = JAS_MAX(n, pass->end);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#if 0
|
||
|
dump_passes(cblk->passes, cblk->numpasses, cblk);
|
||
|
#endif
|
||
|
|
||
|
if (bout) {
|
||
|
jpc_bitstream_close(bout);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/******************************************************************************\
|
||
|
* Code for significance pass.
|
||
|
\******************************************************************************/
|
||
|
|
||
|
#define sigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, orient, mqenc, vcausalflag) \
|
||
|
{ \
|
||
|
int f; \
|
||
|
int v; \
|
||
|
f = *(fp); \
|
||
|
if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
|
||
|
v = (abs(*(dp)) & (one)) ? 1 : 0; \
|
||
|
jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
|
||
|
jpc_mqenc_putbit(mqenc, v); \
|
||
|
if (v) { \
|
||
|
*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
|
||
|
v = ((*(dp) < 0) ? 1 : 0); \
|
||
|
jpc_mqenc_setcurctx(mqenc, JPC_GETSCCTXNO(f)); \
|
||
|
jpc_mqenc_putbit(mqenc, v ^ JPC_GETSPB(f)); \
|
||
|
JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
|
||
|
*(fp) |= JPC_SIG; \
|
||
|
} \
|
||
|
*(fp) |= JPC_VISIT; \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
static int jpc_encsigpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag,
|
||
|
jas_matrix_t *flags, jas_matrix_t *data, int term, long *nmsedec)
|
||
|
{
|
||
|
int i;
|
||
|
int j;
|
||
|
int one;
|
||
|
int vscanlen;
|
||
|
int width;
|
||
|
int height;
|
||
|
int frowstep;
|
||
|
int drowstep;
|
||
|
int fstripestep;
|
||
|
int dstripestep;
|
||
|
jpc_fix_t *fstripestart;
|
||
|
jpc_fix_t *dstripestart;
|
||
|
jpc_fix_t *fp;
|
||
|
jpc_fix_t *dp;
|
||
|
jpc_fix_t *fvscanstart;
|
||
|
jpc_fix_t *dvscanstart;
|
||
|
int k;
|
||
|
|
||
|
*nmsedec = 0;
|
||
|
width = jas_matrix_numcols(data);
|
||
|
height = jas_matrix_numrows(data);
|
||
|
frowstep = jas_matrix_rowstep(flags);
|
||
|
drowstep = jas_matrix_rowstep(data);
|
||
|
fstripestep = frowstep << 2;
|
||
|
dstripestep = drowstep << 2;
|
||
|
|
||
|
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||
|
|
||
|
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||
|
dstripestart = jas_matrix_getref(data, 0, 0);
|
||
|
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||
|
dstripestart += dstripestep) {
|
||
|
fvscanstart = fstripestart;
|
||
|
dvscanstart = dstripestart;
|
||
|
vscanlen = JAS_MIN(i, 4);
|
||
|
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||
|
fp = fvscanstart;
|
||
|
dp = dvscanstart;
|
||
|
k = vscanlen;
|
||
|
|
||
|
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, orient, mqenc, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, orient, mqenc, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, orient, mqenc, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
sigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, orient, mqenc, 0);
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (term) {
|
||
|
jpc_mqenc_flush(mqenc, term - 1);
|
||
|
}
|
||
|
|
||
|
return jpc_mqenc_error(mqenc) ? (-1) : 0;
|
||
|
}
|
||
|
|
||
|
#define rawsigpass_step(fp, frowstep, dp, bitpos, one, nmsedec, out, vcausalflag) \
|
||
|
{ \
|
||
|
jpc_fix_t f = *(fp); \
|
||
|
jpc_fix_t v; \
|
||
|
if ((f & JPC_OTHSIGMSK) && !(f & (JPC_SIG | JPC_VISIT))) { \
|
||
|
v = (abs(*(dp)) & (one)) ? 1 : 0; \
|
||
|
if ((jpc_bitstream_putbit((out), v)) == EOF) { \
|
||
|
return -1; \
|
||
|
} \
|
||
|
if (v) { \
|
||
|
*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
|
||
|
v = ((*(dp) < 0) ? 1 : 0); \
|
||
|
if (jpc_bitstream_putbit(out, v) == EOF) { \
|
||
|
return -1; \
|
||
|
} \
|
||
|
JPC_UPDATEFLAGS4(fp, frowstep, v, vcausalflag); \
|
||
|
*(fp) |= JPC_SIG; \
|
||
|
} \
|
||
|
*(fp) |= JPC_VISIT; \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
static int jpc_encrawsigpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
|
||
|
jas_matrix_t *data, int term, long *nmsedec)
|
||
|
{
|
||
|
int i;
|
||
|
int j;
|
||
|
int k;
|
||
|
int one;
|
||
|
int vscanlen;
|
||
|
int width;
|
||
|
int height;
|
||
|
int frowstep;
|
||
|
int drowstep;
|
||
|
int fstripestep;
|
||
|
int dstripestep;
|
||
|
jpc_fix_t *fstripestart;
|
||
|
jpc_fix_t *dstripestart;
|
||
|
jpc_fix_t *fp;
|
||
|
jpc_fix_t *dp;
|
||
|
jpc_fix_t *fvscanstart;
|
||
|
jpc_fix_t *dvscanstart;
|
||
|
|
||
|
*nmsedec = 0;
|
||
|
width = jas_matrix_numcols(data);
|
||
|
height = jas_matrix_numrows(data);
|
||
|
frowstep = jas_matrix_rowstep(flags);
|
||
|
drowstep = jas_matrix_rowstep(data);
|
||
|
fstripestep = frowstep << 2;
|
||
|
dstripestep = drowstep << 2;
|
||
|
|
||
|
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||
|
|
||
|
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||
|
dstripestart = jas_matrix_getref(data, 0, 0);
|
||
|
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||
|
dstripestart += dstripestep) {
|
||
|
fvscanstart = fstripestart;
|
||
|
dvscanstart = dstripestart;
|
||
|
vscanlen = JAS_MIN(i, 4);
|
||
|
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||
|
fp = fvscanstart;
|
||
|
dp = dvscanstart;
|
||
|
k = vscanlen;
|
||
|
|
||
|
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, out, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
|
||
|
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, out, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
|
||
|
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, out, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
|
||
|
rawsigpass_step(fp, frowstep, dp, bitpos, one,
|
||
|
nmsedec, out, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (term) {
|
||
|
jpc_bitstream_outalign(out, 0x2a);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/******************************************************************************\
|
||
|
* Code for refinement pass.
|
||
|
\******************************************************************************/
|
||
|
|
||
|
#define refpass_step(fp, dp, bitpos, one, nmsedec, mqenc, vcausalflag) \
|
||
|
{ \
|
||
|
int v; \
|
||
|
if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
|
||
|
(d) = *(dp); \
|
||
|
*(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
|
||
|
jpc_mqenc_setcurctx((mqenc), JPC_GETMAGCTXNO(*(fp))); \
|
||
|
v = (abs(d) & (one)) ? 1 : 0; \
|
||
|
jpc_mqenc_putbit((mqenc), v); \
|
||
|
*(fp) |= JPC_REFINE; \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
static int jpc_encrefpass(jpc_mqenc_t *mqenc, int bitpos, int vcausalflag, jas_matrix_t *flags, jas_matrix_t *data,
|
||
|
int term, long *nmsedec)
|
||
|
{
|
||
|
int i;
|
||
|
int j;
|
||
|
int one;
|
||
|
int vscanlen;
|
||
|
int d;
|
||
|
int width;
|
||
|
int height;
|
||
|
int frowstep;
|
||
|
int drowstep;
|
||
|
int fstripestep;
|
||
|
int dstripestep;
|
||
|
jpc_fix_t *fstripestart;
|
||
|
jpc_fix_t *dstripestart;
|
||
|
jpc_fix_t *fvscanstart;
|
||
|
jpc_fix_t *dvscanstart;
|
||
|
jpc_fix_t *dp;
|
||
|
jpc_fix_t *fp;
|
||
|
int k;
|
||
|
|
||
|
*nmsedec = 0;
|
||
|
width = jas_matrix_numcols(data);
|
||
|
height = jas_matrix_numrows(data);
|
||
|
frowstep = jas_matrix_rowstep(flags);
|
||
|
drowstep = jas_matrix_rowstep(data);
|
||
|
fstripestep = frowstep << 2;
|
||
|
dstripestep = drowstep << 2;
|
||
|
|
||
|
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||
|
|
||
|
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||
|
dstripestart = jas_matrix_getref(data, 0, 0);
|
||
|
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||
|
dstripestart += dstripestep) {
|
||
|
fvscanstart = fstripestart;
|
||
|
dvscanstart = dstripestart;
|
||
|
vscanlen = JAS_MIN(i, 4);
|
||
|
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||
|
fp = fvscanstart;
|
||
|
dp = dvscanstart;
|
||
|
k = vscanlen;
|
||
|
|
||
|
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
mqenc, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
mqenc, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
mqenc, 0);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
refpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
mqenc, 0);
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (term) {
|
||
|
jpc_mqenc_flush(mqenc, term - 1);
|
||
|
}
|
||
|
|
||
|
return jpc_mqenc_error(mqenc) ? (-1) : 0;
|
||
|
}
|
||
|
|
||
|
#define rawrefpass_step(fp, dp, bitpos, one, nmsedec, out, vcausalflag) \
|
||
|
{ \
|
||
|
jpc_fix_t d; \
|
||
|
jpc_fix_t v; \
|
||
|
if (((*(fp)) & (JPC_SIG | JPC_VISIT)) == JPC_SIG) { \
|
||
|
d = *(dp); \
|
||
|
*(nmsedec) += JPC_GETREFNMSEDEC(abs(d), (bitpos) + JPC_NUMEXTRABITS); \
|
||
|
v = (abs(d) & (one)) ? 1 : 0; \
|
||
|
if (jpc_bitstream_putbit((out), v) == EOF) { \
|
||
|
return -1; \
|
||
|
} \
|
||
|
*(fp) |= JPC_REFINE; \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
static int jpc_encrawrefpass(jpc_bitstream_t *out, int bitpos, int vcausalflag, jas_matrix_t *flags,
|
||
|
jas_matrix_t *data, int term, long *nmsedec)
|
||
|
{
|
||
|
int i;
|
||
|
int j;
|
||
|
int k;
|
||
|
int one;
|
||
|
int vscanlen;
|
||
|
int width;
|
||
|
int height;
|
||
|
int frowstep;
|
||
|
int drowstep;
|
||
|
int fstripestep;
|
||
|
int dstripestep;
|
||
|
jpc_fix_t *fstripestart;
|
||
|
jpc_fix_t *dstripestart;
|
||
|
jpc_fix_t *fvscanstart;
|
||
|
jpc_fix_t *dvscanstart;
|
||
|
jpc_fix_t *dp;
|
||
|
jpc_fix_t *fp;
|
||
|
|
||
|
*nmsedec = 0;
|
||
|
width = jas_matrix_numcols(data);
|
||
|
height = jas_matrix_numrows(data);
|
||
|
frowstep = jas_matrix_rowstep(flags);
|
||
|
drowstep = jas_matrix_rowstep(data);
|
||
|
fstripestep = frowstep << 2;
|
||
|
dstripestep = drowstep << 2;
|
||
|
|
||
|
one = 1 << (bitpos + JPC_NUMEXTRABITS);
|
||
|
|
||
|
fstripestart = jas_matrix_getref(flags, 1, 1);
|
||
|
dstripestart = jas_matrix_getref(data, 0, 0);
|
||
|
for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
|
||
|
dstripestart += dstripestep) {
|
||
|
fvscanstart = fstripestart;
|
||
|
dvscanstart = dstripestart;
|
||
|
vscanlen = JAS_MIN(i, 4);
|
||
|
for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
|
||
|
fp = fvscanstart;
|
||
|
dp = dvscanstart;
|
||
|
k = vscanlen;
|
||
|
|
||
|
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
out, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
out, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
out, vcausalflag);
|
||
|
if (--k <= 0) {
|
||
|
continue;
|
||
|
}
|
||
|
fp += frowstep;
|
||
|
dp += drowstep;
|
||
|
rawrefpass_step(fp, dp, bitpos, one, nmsedec,
|
||
|
out, vcausalflag);
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (term) {
|
||
|
jpc_bitstream_outalign(out, 0x2a);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
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/******************************************************************************\
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* Code for cleanup pass.
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\******************************************************************************/
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#define clnpass_step(fp, frowstep, dp, bitpos, one, orient, nmsedec, mqenc, label1, label2, vcausalflag) \
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{ \
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int f; \
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int v; \
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label1 \
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f = *(fp); \
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if (!(f & (JPC_SIG | JPC_VISIT))) { \
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jpc_mqenc_setcurctx(mqenc, JPC_GETZCCTXNO(f, (orient))); \
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v = (abs(*(dp)) & (one)) ? 1 : 0; \
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jpc_mqenc_putbit((mqenc), v); \
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if (v) { \
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label2 \
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f = *(fp); \
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/* Coefficient is significant. */ \
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*(nmsedec) += JPC_GETSIGNMSEDEC(abs(*(dp)), (bitpos) + JPC_NUMEXTRABITS); \
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jpc_mqenc_setcurctx((mqenc), JPC_GETSCCTXNO(f)); \
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v = ((*(dp) < 0) ? 1 : 0); \
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jpc_mqenc_putbit((mqenc), v ^ JPC_GETSPB(f)); \
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JPC_UPDATEFLAGS4((fp), (frowstep), v, vcausalflag); \
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*(fp) |= JPC_SIG; \
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} \
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} \
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*(fp) &= ~JPC_VISIT; \
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}
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static int jpc_encclnpass(jpc_mqenc_t *mqenc, int bitpos, int orient, int vcausalflag, int segsymflag, jas_matrix_t *flags,
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jas_matrix_t *data, int term, long *nmsedec)
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{
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int i;
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int j;
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int k;
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int vscanlen;
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int v;
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int runlen;
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jpc_fix_t *fp;
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int width;
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int height;
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jpc_fix_t *dp;
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int one;
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int frowstep;
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int drowstep;
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int fstripestep;
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int dstripestep;
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jpc_fix_t *fstripestart;
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jpc_fix_t *dstripestart;
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jpc_fix_t *fvscanstart;
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jpc_fix_t *dvscanstart;
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*nmsedec = 0;
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width = jas_matrix_numcols(data);
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height = jas_matrix_numrows(data);
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frowstep = jas_matrix_rowstep(flags);
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drowstep = jas_matrix_rowstep(data);
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fstripestep = frowstep << 2;
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dstripestep = drowstep << 2;
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one = 1 << (bitpos + JPC_NUMEXTRABITS);
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fstripestart = jas_matrix_getref(flags, 1, 1);
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dstripestart = jas_matrix_getref(data, 0, 0);
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for (i = height; i > 0; i -= 4, fstripestart += fstripestep,
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dstripestart += dstripestep) {
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fvscanstart = fstripestart;
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dvscanstart = dstripestart;
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vscanlen = JAS_MIN(i, 4);
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for (j = width; j > 0; --j, ++fvscanstart, ++dvscanstart) {
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fp = fvscanstart;
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if (vscanlen >= 4 && !((*fp) & (JPC_SIG | JPC_VISIT |
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JPC_OTHSIGMSK)) && (fp += frowstep, !((*fp) & (JPC_SIG |
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JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep, !((*fp) &
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(JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK))) && (fp += frowstep,
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!((*fp) & (JPC_SIG | JPC_VISIT | JPC_OTHSIGMSK)))) {
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dp = dvscanstart;
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for (k = 0; k < vscanlen; ++k) {
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v = (abs(*dp) & one) ? 1 : 0;
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if (v) {
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break;
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}
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dp += drowstep;
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}
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runlen = k;
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if (runlen >= 4) {
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jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
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jpc_mqenc_putbit(mqenc, 0);
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continue;
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}
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jpc_mqenc_setcurctx(mqenc, JPC_AGGCTXNO);
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jpc_mqenc_putbit(mqenc, 1);
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jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
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jpc_mqenc_putbit(mqenc, runlen >> 1);
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jpc_mqenc_putbit(mqenc, runlen & 1);
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fp = fvscanstart + frowstep * runlen;
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dp = dvscanstart + drowstep * runlen;
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k = vscanlen - runlen;
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switch (runlen) {
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case 0:
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goto clnpass_partial0;
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break;
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case 1:
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goto clnpass_partial1;
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break;
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case 2:
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goto clnpass_partial2;
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break;
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case 3:
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goto clnpass_partial3;
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break;
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}
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} else {
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runlen = 0;
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fp = fvscanstart;
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dp = dvscanstart;
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k = vscanlen;
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goto clnpass_full0;
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}
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clnpass_step(fp, frowstep, dp, bitpos, one,
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orient, nmsedec, mqenc, clnpass_full0:, clnpass_partial0:, vcausalflag);
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if (--k <= 0) {
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continue;
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}
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fp += frowstep;
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dp += drowstep;
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clnpass_step(fp, frowstep, dp, bitpos, one,
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orient, nmsedec, mqenc, ;, clnpass_partial1:, 0);
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if (--k <= 0) {
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continue;
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}
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fp += frowstep;
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dp += drowstep;
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clnpass_step(fp, frowstep, dp, bitpos, one,
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orient, nmsedec, mqenc, ;, clnpass_partial2:, 0);
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if (--k <= 0) {
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continue;
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}
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fp += frowstep;
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dp += drowstep;
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clnpass_step(fp, frowstep, dp, bitpos, one,
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orient, nmsedec, mqenc, ;, clnpass_partial3:, 0);
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}
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}
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if (segsymflag) {
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jpc_mqenc_setcurctx(mqenc, JPC_UCTXNO);
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jpc_mqenc_putbit(mqenc, 1);
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jpc_mqenc_putbit(mqenc, 0);
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jpc_mqenc_putbit(mqenc, 1);
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jpc_mqenc_putbit(mqenc, 0);
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}
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if (term) {
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jpc_mqenc_flush(mqenc, term - 1);
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}
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return jpc_mqenc_error(mqenc) ? (-1) : 0;
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}
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