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Diffstat (limited to 'src/libjasper/jpc/jpc_tsfb.c')
| -rw-r--r-- | src/libjasper/jpc/jpc_tsfb.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/src/libjasper/jpc/jpc_tsfb.c b/src/libjasper/jpc/jpc_tsfb.c new file mode 100644 index 0000000..6f332ff --- /dev/null +++ b/src/libjasper/jpc/jpc_tsfb.c @@ -0,0 +1,288 @@ +/* + * Copyright (c) 1999-2000 Image Power, Inc. and the University of + * British Columbia. + * Copyright (c) 2001-2004 Michael David Adams. + * All rights reserved. + */ + +/* __START_OF_JASPER_LICENSE__ + * + * JasPer License Version 2.0 + * + * Copyright (c) 2001-2006 Michael David Adams + * Copyright (c) 1999-2000 Image Power, Inc. + * Copyright (c) 1999-2000 The University of British Columbia + * + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person (the + * "User") obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, and/or sell copies of the Software, and to permit + * persons to whom the Software is furnished to do so, subject to the + * following conditions: + * + * 1. The above copyright notices and this permission notice (which + * includes the disclaimer below) shall be included in all copies or + * substantial portions of the Software. + * + * 2. The name of a copyright holder shall not be used to endorse or + * promote products derived from the Software without specific prior + * written permission. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS + * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS + * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL + * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE + * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE + * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. + * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS + * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL + * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS + * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE + * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE + * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL + * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL + * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH + * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, + * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH + * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY + * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * Tree-Structured Filter Bank (TSFB) Library + * + * $Id: jpc_tsfb.c,v 1.1 2008/10/17 06:15:00 scuri Exp $ + */ + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include <assert.h> + +#include "jasper/jas_malloc.h" +#include "jasper/jas_seq.h" + +#include "jpc_tsfb.h" +#include "jpc_cod.h" +#include "jpc_cs.h" +#include "jpc_util.h" +#include "jpc_math.h" + +void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart, + int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands, + int numlvls); + +/******************************************************************************\ +* +\******************************************************************************/ + +jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlvls) +{ + jpc_tsfb_t *tsfb; + + if (!(tsfb = malloc(sizeof(jpc_tsfb_t)))) + return 0; + + if (numlvls > 0) { + switch (qmfbid) { + case JPC_COX_INS: + tsfb->qmfb = &jpc_ns_qmfb2d; + break; + default: + case JPC_COX_RFT: + tsfb->qmfb = &jpc_ft_qmfb2d; + break; + } + } else { + tsfb->qmfb = 0; + } + tsfb->numlvls = numlvls; + return tsfb; +} + +void jpc_tsfb_destroy(jpc_tsfb_t *tsfb) +{ + free(tsfb); +} + +int jpc_tsfb_analyze(jpc_tsfb_t *tsfb, jas_seq2d_t *a) +{ + return (tsfb->numlvls > 0) ? jpc_tsfb_analyze2(tsfb, jas_seq2d_getref(a, + jas_seq2d_xstart(a), jas_seq2d_ystart(a)), jas_seq2d_xstart(a), + jas_seq2d_ystart(a), jas_seq2d_width(a), + jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0; +} + +int jpc_tsfb_analyze2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart, + int width, int height, int stride, int numlvls) +{ + if (width > 0 && height > 0) { + if ((*tsfb->qmfb->analyze)(a, xstart, ystart, width, height, stride)) + return -1; + if (numlvls > 0) { + if (jpc_tsfb_analyze2(tsfb, a, JPC_CEILDIVPOW2(xstart, + 1), JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2( + xstart + width, 1) - JPC_CEILDIVPOW2(xstart, 1), + JPC_CEILDIVPOW2(ystart + height, 1) - + JPC_CEILDIVPOW2(ystart, 1), stride, numlvls - 1)) { + return -1; + } + } + } + return 0; +} + +int jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, jas_seq2d_t *a) +{ + return (tsfb->numlvls > 0) ? jpc_tsfb_synthesize2(tsfb, + jas_seq2d_getref(a, jas_seq2d_xstart(a), jas_seq2d_ystart(a)), + jas_seq2d_xstart(a), jas_seq2d_ystart(a), jas_seq2d_width(a), + jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0; +} + +int jpc_tsfb_synthesize2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart, + int width, int height, int stride, int numlvls) +{ + if (numlvls > 0) { + if (jpc_tsfb_synthesize2(tsfb, a, JPC_CEILDIVPOW2(xstart, 1), + JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2(xstart + width, + 1) - JPC_CEILDIVPOW2(xstart, 1), JPC_CEILDIVPOW2(ystart + + height, 1) - JPC_CEILDIVPOW2(ystart, 1), stride, numlvls - + 1)) { + return -1; + } + } + if (width > 0 && height > 0) { + if ((*tsfb->qmfb->synthesize)(a, xstart, ystart, width, height, stride)) { + return -1; + } + } + return 0; +} + +int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart, + uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend, + jpc_tsfb_band_t *bands) +{ + jpc_tsfb_band_t *band; + + band = bands; + if (tsfb->numlvls > 0) { + jpc_tsfb_getbands2(tsfb, xstart, ystart, xstart, ystart, xend, yend, + &band, tsfb->numlvls); + } else { + + band->xstart = xstart; + band->ystart = ystart; + band->xend = xend; + band->yend = yend; + band->locxstart = xstart; + band->locystart = ystart; + band->locxend = band->locxstart + band->xend - band->xstart; + band->locyend = band->locystart + band->yend - band->ystart; + band->orient = JPC_TSFB_LL; + band->synenergywt = JPC_FIX_ONE; + ++band; + } + return band - bands; +} + +void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart, + int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands, + int numlvls) +{ + int newxstart; + int newystart; + int newxend; + int newyend; + jpc_tsfb_band_t *band; + + newxstart = JPC_CEILDIVPOW2(xstart, 1); + newystart = JPC_CEILDIVPOW2(ystart, 1); + newxend = JPC_CEILDIVPOW2(xend, 1); + newyend = JPC_CEILDIVPOW2(yend, 1); + + if (numlvls > 0) { + + jpc_tsfb_getbands2(tsfb, locxstart, locystart, newxstart, newystart, + newxend, newyend, bands, numlvls - 1); + + band = *bands; + band->xstart = JPC_FLOORDIVPOW2(xstart, 1); + band->ystart = newystart; + band->xend = JPC_FLOORDIVPOW2(xend, 1); + band->yend = newyend; + band->locxstart = locxstart + newxend - newxstart; + band->locystart = locystart; + band->locxend = band->locxstart + band->xend - band->xstart; + band->locyend = band->locystart + band->yend - band->ystart; + band->orient = JPC_TSFB_HL; + band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[ + tsfb->numlvls - numlvls] * tsfb->qmfb->lpenergywts[ + tsfb->numlvls - numlvls]); + ++(*bands); + + band = *bands; + band->xstart = newxstart; + band->ystart = JPC_FLOORDIVPOW2(ystart, 1); + band->xend = newxend; + band->yend = JPC_FLOORDIVPOW2(yend, 1); + band->locxstart = locxstart; + band->locystart = locystart + newyend - newystart; + band->locxend = band->locxstart + band->xend - band->xstart; + band->locyend = band->locystart + band->yend - band->ystart; + band->orient = JPC_TSFB_LH; + band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[ + tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[ + tsfb->numlvls - numlvls]); + ++(*bands); + + band = *bands; + band->xstart = JPC_FLOORDIVPOW2(xstart, 1); + band->ystart = JPC_FLOORDIVPOW2(ystart, 1); + band->xend = JPC_FLOORDIVPOW2(xend, 1); + band->yend = JPC_FLOORDIVPOW2(yend, 1); + band->locxstart = locxstart + newxend - newxstart; + band->locystart = locystart + newyend - newystart; + band->locxend = band->locxstart + band->xend - band->xstart; + band->locyend = band->locystart + band->yend - band->ystart; + band->orient = JPC_TSFB_HH; + band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[ + tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[ + tsfb->numlvls - numlvls]); + ++(*bands); + + } else { + + band = *bands; + band->xstart = xstart; + band->ystart = ystart; + band->xend = xend; + band->yend = yend; + band->locxstart = locxstart; + band->locystart = locystart; + band->locxend = band->locxstart + band->xend - band->xstart; + band->locyend = band->locystart + band->yend - band->ystart; + band->orient = JPC_TSFB_LL; + band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[ + tsfb->numlvls - numlvls - 1] * tsfb->qmfb->lpenergywts[ + tsfb->numlvls - numlvls - 1]); + ++(*bands); + + } + +} |