/* * 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 * * $Id$ */ /******************************************************************************\* Includes.\******************************************************************************/ #include "jpc_tsfb.h"#include "jpc_cs.h"#include "jpc_math.h"#include "jpc_fix.h" #include "jasper/jas_seq.h"#include "jasper/jas_malloc.h" /******************************************************************************\* Function prototypes.\******************************************************************************/ static int jpc_tsfb_analyze2(jpc_tsfb_t *tsfb, jpc_fix_t *a, int xstart, int ystart,  unsigned width, unsigned height, unsigned stride, unsigned numlvls); static int jpc_tsfb_synthesize2(jpc_tsfb_t *tsfb, jpc_fix_t *a, int xstart, int ystart,  unsigned width, unsigned height, unsigned stride, unsigned numlvls); 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,  unsigned numlvls); /******************************************************************************\*\******************************************************************************/ jpc_tsfb_t *jpc_cod_gettsfb(unsigned qmfbid, unsigned numlvls){	jpc_tsfb_t *tsfb; 	if (!(tsfb = jas_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){	jas_free(tsfb);} int jpc_tsfb_analyze(jpc_tsfb_t *tsfb, jas_seq2d_t *a){	if (tsfb->numlvls == 0)		return 0; 	return 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);} static int jpc_tsfb_analyze2(jpc_tsfb_t *tsfb, jpc_fix_t *a, int xstart, int ystart,  unsigned width, unsigned height, unsigned stride, unsigned numlvls){	if (width == 0 || height == 0)		return 0; 	if ((*tsfb->qmfb->analyze)(a, xstart, ystart, width, height, stride))		return -1; 	if (numlvls == 0)		return 0; 	return 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);} int jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, jas_seq2d_t *a){	if (tsfb->numlvls == 0 || jas_seq2d_empty(a))		return 0; 	return 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);} static int jpc_tsfb_synthesize2(jpc_tsfb_t *tsfb, jpc_fix_t *a, int xstart, int ystart,  unsigned width, unsigned height, unsigned stride, unsigned 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)		return 0; 	return tsfb->qmfb->synthesize(a, xstart, ystart, width, height, stride);} 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,  unsigned 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); 	} }