1 /*
2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
3 * British Columbia.
4 * Copyright (c) 2001-2004 Michael David Adams.
5 * All rights reserved.
6 */
7
8 /* __START_OF_JASPER_LICENSE__
9 *
10 * JasPer License Version 2.0
11 *
12 * Copyright (c) 2001-2006 Michael David Adams
13 * Copyright (c) 1999-2000 Image Power, Inc.
14 * Copyright (c) 1999-2000 The University of British Columbia
15 *
16 * All rights reserved.
17 *
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
25 *
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
29 *
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
32 * written permission.
33 *
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
60 *
61 * __END_OF_JASPER_LICENSE__
62 */
63
64 /*
65 * Tree-Structured Filter Bank (TSFB) Library
66 *
67 * $Id: jpc_tsfb.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
68 */
69
70 /******************************************************************************\
71 * Includes.
72 \******************************************************************************/
73
74 #include <assert.h>
75
76 #include "jasper/jas_malloc.h"
77 #include "jasper/jas_seq.h"
78
79 #include "jpc_tsfb.h"
80 #include "jpc_cod.h"
81 #include "jpc_cs.h"
82 #include "jpc_util.h"
83 #include "jpc_math.h"
84
85 void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart,
86 int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands,
87 int numlvls);
88
89 /******************************************************************************\
90 *
91 \******************************************************************************/
92
jpc_cod_gettsfb(int qmfbid,int numlvls)93 jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlvls)
94 {
95 jpc_tsfb_t *tsfb;
96
97 if (!(tsfb = malloc(sizeof(jpc_tsfb_t))))
98 return 0;
99
100 if (numlvls > 0) {
101 switch (qmfbid) {
102 case JPC_COX_INS:
103 tsfb->qmfb = &jpc_ns_qmfb2d;
104 break;
105 default:
106 case JPC_COX_RFT:
107 tsfb->qmfb = &jpc_ft_qmfb2d;
108 break;
109 }
110 } else {
111 tsfb->qmfb = 0;
112 }
113 tsfb->numlvls = numlvls;
114 return tsfb;
115 }
116
jpc_tsfb_destroy(jpc_tsfb_t * tsfb)117 void jpc_tsfb_destroy(jpc_tsfb_t *tsfb)
118 {
119 free(tsfb);
120 }
121
jpc_tsfb_analyze(jpc_tsfb_t * tsfb,jas_seq2d_t * a)122 int jpc_tsfb_analyze(jpc_tsfb_t *tsfb, jas_seq2d_t *a)
123 {
124 return (tsfb->numlvls > 0) ? jpc_tsfb_analyze2(tsfb, jas_seq2d_getref(a,
125 jas_seq2d_xstart(a), jas_seq2d_ystart(a)), jas_seq2d_xstart(a),
126 jas_seq2d_ystart(a), jas_seq2d_width(a),
127 jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0;
128 }
129
jpc_tsfb_analyze2(jpc_tsfb_t * tsfb,int * a,int xstart,int ystart,int width,int height,int stride,int numlvls)130 int jpc_tsfb_analyze2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart,
131 int width, int height, int stride, int numlvls)
132 {
133 if (width > 0 && height > 0) {
134 if ((*tsfb->qmfb->analyze)(a, xstart, ystart, width, height, stride))
135 return -1;
136 if (numlvls > 0) {
137 if (jpc_tsfb_analyze2(tsfb, a, JPC_CEILDIVPOW2(xstart,
138 1), JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2(
139 xstart + width, 1) - JPC_CEILDIVPOW2(xstart, 1),
140 JPC_CEILDIVPOW2(ystart + height, 1) -
141 JPC_CEILDIVPOW2(ystart, 1), stride, numlvls - 1)) {
142 return -1;
143 }
144 }
145 }
146 return 0;
147 }
148
jpc_tsfb_synthesize(jpc_tsfb_t * tsfb,jas_seq2d_t * a)149 int jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, jas_seq2d_t *a)
150 {
151 return (tsfb->numlvls > 0) ? jpc_tsfb_synthesize2(tsfb,
152 jas_seq2d_getref(a, jas_seq2d_xstart(a), jas_seq2d_ystart(a)),
153 jas_seq2d_xstart(a), jas_seq2d_ystart(a), jas_seq2d_width(a),
154 jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0;
155 }
156
jpc_tsfb_synthesize2(jpc_tsfb_t * tsfb,int * a,int xstart,int ystart,int width,int height,int stride,int numlvls)157 int jpc_tsfb_synthesize2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart,
158 int width, int height, int stride, int numlvls)
159 {
160 if (numlvls > 0) {
161 if (jpc_tsfb_synthesize2(tsfb, a, JPC_CEILDIVPOW2(xstart, 1),
162 JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2(xstart + width,
163 1) - JPC_CEILDIVPOW2(xstart, 1), JPC_CEILDIVPOW2(ystart +
164 height, 1) - JPC_CEILDIVPOW2(ystart, 1), stride, numlvls -
165 1)) {
166 return -1;
167 }
168 }
169 if (width > 0 && height > 0) {
170 if ((*tsfb->qmfb->synthesize)(a, xstart, ystart, width, height, stride)) {
171 return -1;
172 }
173 }
174 return 0;
175 }
176
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)177 int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart,
178 uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend,
179 jpc_tsfb_band_t *bands)
180 {
181 jpc_tsfb_band_t *band;
182
183 band = bands;
184 if (tsfb->numlvls > 0) {
185 jpc_tsfb_getbands2(tsfb, xstart, ystart, xstart, ystart, xend, yend,
186 &band, tsfb->numlvls);
187 } else {
188
189 band->xstart = xstart;
190 band->ystart = ystart;
191 band->xend = xend;
192 band->yend = yend;
193 band->locxstart = xstart;
194 band->locystart = ystart;
195 band->locxend = band->locxstart + band->xend - band->xstart;
196 band->locyend = band->locystart + band->yend - band->ystart;
197 band->orient = JPC_TSFB_LL;
198 band->synenergywt = JPC_FIX_ONE;
199 ++band;
200 }
201 return band - bands;
202 }
203
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)204 void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart,
205 int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands,
206 int numlvls)
207 {
208 int newxstart;
209 int newystart;
210 int newxend;
211 int newyend;
212 jpc_tsfb_band_t *band;
213
214 newxstart = JPC_CEILDIVPOW2(xstart, 1);
215 newystart = JPC_CEILDIVPOW2(ystart, 1);
216 newxend = JPC_CEILDIVPOW2(xend, 1);
217 newyend = JPC_CEILDIVPOW2(yend, 1);
218
219 if (numlvls > 0) {
220
221 jpc_tsfb_getbands2(tsfb, locxstart, locystart, newxstart, newystart,
222 newxend, newyend, bands, numlvls - 1);
223
224 band = *bands;
225 band->xstart = JPC_FLOORDIVPOW2(xstart, 1);
226 band->ystart = newystart;
227 band->xend = JPC_FLOORDIVPOW2(xend, 1);
228 band->yend = newyend;
229 band->locxstart = locxstart + newxend - newxstart;
230 band->locystart = locystart;
231 band->locxend = band->locxstart + band->xend - band->xstart;
232 band->locyend = band->locystart + band->yend - band->ystart;
233 band->orient = JPC_TSFB_HL;
234 band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[
235 tsfb->numlvls - numlvls] * tsfb->qmfb->lpenergywts[
236 tsfb->numlvls - numlvls]);
237 ++(*bands);
238
239 band = *bands;
240 band->xstart = newxstart;
241 band->ystart = JPC_FLOORDIVPOW2(ystart, 1);
242 band->xend = newxend;
243 band->yend = JPC_FLOORDIVPOW2(yend, 1);
244 band->locxstart = locxstart;
245 band->locystart = locystart + newyend - newystart;
246 band->locxend = band->locxstart + band->xend - band->xstart;
247 band->locyend = band->locystart + band->yend - band->ystart;
248 band->orient = JPC_TSFB_LH;
249 band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[
250 tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[
251 tsfb->numlvls - numlvls]);
252 ++(*bands);
253
254 band = *bands;
255 band->xstart = JPC_FLOORDIVPOW2(xstart, 1);
256 band->ystart = JPC_FLOORDIVPOW2(ystart, 1);
257 band->xend = JPC_FLOORDIVPOW2(xend, 1);
258 band->yend = JPC_FLOORDIVPOW2(yend, 1);
259 band->locxstart = locxstart + newxend - newxstart;
260 band->locystart = locystart + newyend - newystart;
261 band->locxend = band->locxstart + band->xend - band->xstart;
262 band->locyend = band->locystart + band->yend - band->ystart;
263 band->orient = JPC_TSFB_HH;
264 band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[
265 tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[
266 tsfb->numlvls - numlvls]);
267 ++(*bands);
268
269 } else {
270
271 band = *bands;
272 band->xstart = xstart;
273 band->ystart = ystart;
274 band->xend = xend;
275 band->yend = yend;
276 band->locxstart = locxstart;
277 band->locystart = locystart;
278 band->locxend = band->locxstart + band->xend - band->xstart;
279 band->locyend = band->locystart + band->yend - band->ystart;
280 band->orient = JPC_TSFB_LL;
281 band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[
282 tsfb->numlvls - numlvls - 1] * tsfb->qmfb->lpenergywts[
283 tsfb->numlvls - numlvls - 1]);
284 ++(*bands);
285
286 }
287
288 }
289