65ff6263e0db17fc39ae53a9fab2d4ca47c968c5
[pdfium.git] / core / src / fxcodec / fx_libopenjpeg / libopenjpeg20 / pi.c
1 /*
2  * The copyright in this software is being made available under the 2-clauses 
3  * BSD License, included below. This software may be subject to other third 
4  * party and contributor rights, including patent rights, and no such rights
5  * are granted under this license.
6  *
7  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8  * Copyright (c) 2002-2014, Professor Benoit Macq
9  * Copyright (c) 2001-2003, David Janssens
10  * Copyright (c) 2002-2003, Yannick Verschueren
11  * Copyright (c) 2003-2007, Francois-Olivier Devaux 
12  * Copyright (c) 2003-2014, Antonin Descampe
13  * Copyright (c) 2005, Herve Drolon, FreeImage Team
14  * Copyright (c) 2006-2007, Parvatha Elangovan
15  * All rights reserved.
16  *
17  * Redistribution and use in source and binary forms, with or without
18  * modification, are permitted provided that the following conditions
19  * are met:
20  * 1. Redistributions of source code must retain the above copyright
21  *    notice, this list of conditions and the following disclaimer.
22  * 2. Redistributions in binary form must reproduce the above copyright
23  *    notice, this list of conditions and the following disclaimer in the
24  *    documentation and/or other materials provided with the distribution.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
27  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38
39 #include "opj_includes.h"
40
41 /** @defgroup PI PI - Implementation of a packet iterator */
42 /*@{*/
43
44 /** @name Local static functions */
45 /*@{*/
46
47 /**
48 Get next packet in layer-resolution-component-precinct order.
49 @param pi packet iterator to modify
50 @return returns false if pi pointed to the last packet or else returns true
51 */
52 static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi);
53 /**
54 Get next packet in resolution-layer-component-precinct order.
55 @param pi packet iterator to modify
56 @return returns false if pi pointed to the last packet or else returns true
57 */
58 static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi);
59 /**
60 Get next packet in resolution-precinct-component-layer order.
61 @param pi packet iterator to modify
62 @return returns false if pi pointed to the last packet or else returns true
63 */
64 static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi);
65 /**
66 Get next packet in precinct-component-resolution-layer order.
67 @param pi packet iterator to modify
68 @return returns false if pi pointed to the last packet or else returns true
69 */
70 static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi);
71 /**
72 Get next packet in component-precinct-resolution-layer order.
73 @param pi packet iterator to modify
74 @return returns false if pi pointed to the last packet or else returns true
75 */
76 static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi);
77
78 /**
79  * Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
80  *
81  * @param       p_cp            the coding parameters to modify
82  * @param       p_tileno        the tile index being concerned.
83  * @param       p_tx0           X0 parameter for the tile
84  * @param       p_tx1           X1 parameter for the tile
85  * @param       p_ty0           Y0 parameter for the tile
86  * @param       p_ty1           Y1 parameter for the tile
87  * @param       p_max_prec      the maximum precision for all the bands of the tile
88  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
89  * @param       p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
90  * @param       p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
91  */
92 static void opj_pi_update_encode_poc_and_final ( opj_cp_t *p_cp,
93                                                  OPJ_UINT32 p_tileno,
94                                                  OPJ_INT32 p_tx0,
95                                                  OPJ_INT32 p_tx1,
96                                                  OPJ_INT32 p_ty0,
97                                                  OPJ_INT32 p_ty1,
98                                                  OPJ_UINT32 p_max_prec,
99                                                  OPJ_UINT32 p_max_res,
100                                                  OPJ_UINT32 p_dx_min,
101                                                  OPJ_UINT32 p_dy_min);
102
103 /**
104  * Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
105  *
106  * @param       p_cp            the coding parameters to modify
107  * @param       p_num_comps             the number of components
108  * @param       p_tileno        the tile index being concerned.
109  * @param       p_tx0           X0 parameter for the tile
110  * @param       p_tx1           X1 parameter for the tile
111  * @param       p_ty0           Y0 parameter for the tile
112  * @param       p_ty1           Y1 parameter for the tile
113  * @param       p_max_prec      the maximum precision for all the bands of the tile
114  * @param       p_max_res       the maximum number of resolutions for all the poc inside the tile.
115  * @param       p_dx_min                the minimum dx of all the components of all the resolutions for the tile.
116  * @param       p_dy_min                the minimum dy of all the components of all the resolutions for the tile.
117  */
118 static void opj_pi_update_encode_not_poc (  opj_cp_t *p_cp,
119                                             OPJ_UINT32 p_num_comps,
120                                             OPJ_UINT32 p_tileno,
121                                             OPJ_INT32 p_tx0,
122                                             OPJ_INT32 p_tx1,
123                                             OPJ_INT32 p_ty0,
124                                             OPJ_INT32 p_ty1,
125                                             OPJ_UINT32 p_max_prec,
126                                             OPJ_UINT32 p_max_res,
127                                             OPJ_UINT32 p_dx_min,
128                                             OPJ_UINT32 p_dy_min);
129 /**
130  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
131  * 
132  * @param       p_image                 the image being encoded.
133  * @param       p_cp                    the coding parameters.
134  * @param       tileno                  the tile index of the tile being encoded.
135  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
136  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
137  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
138  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
139  * @param       p_max_prec              pointer that will hold the the maximum precision for all the bands of the tile
140  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
141  * @param       p_dx_min                        pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
142  * @param       p_dy_min                        pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
143  */
144 static void opj_get_encoding_parameters(const opj_image_t *p_image,
145                                         const opj_cp_t *p_cp,
146                                         OPJ_UINT32  tileno,
147                                         OPJ_INT32  * p_tx0,
148                                         OPJ_INT32 * p_tx1,
149                                         OPJ_INT32 * p_ty0,
150                                         OPJ_INT32 * p_ty1,
151                                         OPJ_UINT32 * p_dx_min,
152                                         OPJ_UINT32 * p_dy_min,
153                                         OPJ_UINT32 * p_max_prec,
154                                         OPJ_UINT32 * p_max_res );
155
156 /**
157  * Gets the encoding parameters needed to update the coding parameters and all the pocs.
158  * The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
159  * the last parameter of the function should be an array of pointers of size nb components, each pointer leading
160  * to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
161  * dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
162  *
163  * @param       p_image                 the image being encoded.
164  * @param       p_cp                    the coding parameters.
165  * @param       tileno                  the tile index of the tile being encoded.
166  * @param       p_tx0                   pointer that will hold the X0 parameter for the tile
167  * @param       p_tx1                   pointer that will hold the X1 parameter for the tile
168  * @param       p_ty0                   pointer that will hold the Y0 parameter for the tile
169  * @param       p_ty1                   pointer that will hold the Y1 parameter for the tile
170  * @param       p_max_prec              pointer that will hold the the maximum precision for all the bands of the tile
171  * @param       p_max_res               pointer that will hold the the maximum number of resolutions for all the poc inside the tile.
172  * @param       p_dx_min                pointer that will hold the the minimum dx of all the components of all the resolutions for the tile.
173  * @param       p_dy_min                pointer that will hold the the minimum dy of all the components of all the resolutions for the tile.
174  * @param       p_resolutions   pointer to an area corresponding to the one described above.
175  */
176 static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
177                                             const opj_cp_t *p_cp,
178                                             OPJ_UINT32 tileno,
179                                             OPJ_INT32 * p_tx0,
180                                             OPJ_INT32 * p_tx1,
181                                             OPJ_INT32 * p_ty0,
182                                             OPJ_INT32 * p_ty1,
183                                             OPJ_UINT32 * p_dx_min,
184                                             OPJ_UINT32 * p_dy_min,
185                                             OPJ_UINT32 * p_max_prec,
186                                             OPJ_UINT32 * p_max_res,
187                                             OPJ_UINT32 ** p_resolutions );
188 /**
189  * Allocates memory for a packet iterator. Data and data sizes are set by this operation.
190  * No other data is set. The include section of the packet  iterator is not allocated.
191  * 
192  * @param       p_image         the image used to initialize the packet iterator (in fact only the number of components is relevant.
193  * @param       p_cp            the coding parameters.
194  * @param       tileno  the index of the tile from which creating the packet iterator.
195  */
196 static opj_pi_iterator_t * opj_pi_create(       const opj_image_t *p_image,
197                                             const opj_cp_t *p_cp,
198                                             OPJ_UINT32 tileno );
199 /**
200  * FIXME DOC
201  */
202 static void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
203                                           opj_tcp_t * p_tcp,
204                                           OPJ_UINT32 p_max_precision,
205                                           OPJ_UINT32 p_max_res);
206 /**
207  * FIXME DOC
208  */
209 static void opj_pi_update_decode_poc (  opj_pi_iterator_t * p_pi,
210                                         opj_tcp_t * p_tcp,
211                                         OPJ_UINT32 p_max_precision,
212                                         OPJ_UINT32 p_max_res);
213
214 /**
215  * FIXME DOC
216  */
217 OPJ_BOOL opj_pi_check_next_level(       OPJ_INT32 pos,
218                                                                 opj_cp_t *cp,
219                                                                 OPJ_UINT32 tileno,
220                                                                 OPJ_UINT32 pino,
221                                                                 const OPJ_CHAR *prog);
222
223 /*@}*/
224
225 /*@}*/
226
227 /*
228 ==========================================================
229    local functions
230 ==========================================================
231 */
232
233 OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi) {
234         opj_pi_comp_t *comp = NULL;
235         opj_pi_resolution_t *res = NULL;
236         OPJ_UINT32 index = 0;
237         
238         if (!pi->first) {
239                 comp = &pi->comps[pi->compno];
240                 res = &comp->resolutions[pi->resno];
241                 goto LABEL_SKIP;
242         } else {
243                 pi->first = 0;
244         }
245
246         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
247                 for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
248                 pi->resno++) {
249                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
250                                 comp = &pi->comps[pi->compno];
251                                 if (pi->resno >= comp->numresolutions) {
252                                         continue;
253                                 }
254                                 res = &comp->resolutions[pi->resno];
255                                 if (!pi->tp_on){
256                                         pi->poc.precno1 = res->pw * res->ph;
257                                 }
258                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
259                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
260                                         if (!pi->include[index]) {
261                                                 pi->include[index] = 1;
262                                                 return OPJ_TRUE;
263                                         }
264 LABEL_SKIP:;
265                                 }
266                         }
267                 }
268         }
269         
270         return OPJ_FALSE;
271 }
272
273 OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi) {
274         opj_pi_comp_t *comp = NULL;
275         opj_pi_resolution_t *res = NULL;
276         OPJ_UINT32 index = 0;
277
278         if (!pi->first) {
279                 comp = &pi->comps[pi->compno];
280                 res = &comp->resolutions[pi->resno];
281                 goto LABEL_SKIP;
282         } else {
283                 pi->first = 0;
284         }
285
286         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
287                 for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
288                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
289                                 comp = &pi->comps[pi->compno];
290                                 if (pi->resno >= comp->numresolutions) {
291                                         continue;
292                                 }
293                                 res = &comp->resolutions[pi->resno];
294                                 if(!pi->tp_on){
295                                         pi->poc.precno1 = res->pw * res->ph;
296                                 }
297                                 for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
298                                         index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
299                                         if (!pi->include[index]) {
300                                                 pi->include[index] = 1;
301                                                 return OPJ_TRUE;
302                                         }
303 LABEL_SKIP:;
304                                 }
305                         }
306                 }
307         }
308         
309         return OPJ_FALSE;
310 }
311
312 OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi) {
313         opj_pi_comp_t *comp = NULL;
314         opj_pi_resolution_t *res = NULL;
315         OPJ_UINT32 index = 0;
316
317         if (!pi->first) {
318                 goto LABEL_SKIP;
319         } else {
320                 OPJ_UINT32 compno, resno;
321                 pi->first = 0;
322                 pi->dx = 0;
323                 pi->dy = 0;
324                 for (compno = 0; compno < pi->numcomps; compno++) {
325                         comp = &pi->comps[compno];
326                         for (resno = 0; resno < comp->numresolutions; resno++) {
327                                 OPJ_UINT32 dx, dy;
328                                 res = &comp->resolutions[resno];
329                                 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
330                                 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
331                                 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
332                                 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
333                         }
334                 }
335         }
336 if (!pi->tp_on){
337                         pi->poc.ty0 = pi->ty0;
338                         pi->poc.tx0 = pi->tx0;
339                         pi->poc.ty1 = pi->ty1;
340                         pi->poc.tx1 = pi->tx1;
341                 }
342         for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
343                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
344                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
345                                 for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
346                                         OPJ_UINT32 levelno;
347                                         OPJ_INT32 trx0, try0;
348                                         OPJ_INT32  trx1, try1;
349                                         OPJ_UINT32  rpx, rpy;
350                                         OPJ_INT32  prci, prcj;
351                                         comp = &pi->comps[pi->compno];
352                                         if (pi->resno >= comp->numresolutions) {
353                                                 continue;
354                                         }
355                                         res = &comp->resolutions[pi->resno];
356                                         levelno = comp->numresolutions - 1 - pi->resno;
357                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
358                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
359                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
360                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
361                                         rpx = res->pdx + levelno;
362                                         rpy = res->pdy + levelno;
363                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
364                                                 continue;       
365                                         }
366                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
367                                                 continue;
368                                         }
369                                         
370                                         if ((res->pw==0)||(res->ph==0)) continue;
371                                         
372                                         if ((trx0==trx1)||(try0==try1)) continue;
373                                         
374                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
375                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
376                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
377                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
378                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
379                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
380                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
381                                                 if (!pi->include[index]) {
382                                                         pi->include[index] = 1;
383                                                         return OPJ_TRUE;
384                                                 }
385 LABEL_SKIP:;
386                                         }
387                                 }
388                         }
389                 }
390         }
391         
392         return OPJ_FALSE;
393 }
394
395 OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi) {
396         opj_pi_comp_t *comp = NULL;
397         opj_pi_resolution_t *res = NULL;
398         OPJ_UINT32 index = 0;
399
400         if (!pi->first) {
401                 comp = &pi->comps[pi->compno];
402                 goto LABEL_SKIP;
403         } else {
404                 OPJ_UINT32 compno, resno;
405                 pi->first = 0;
406                 pi->dx = 0;
407                 pi->dy = 0;
408                 for (compno = 0; compno < pi->numcomps; compno++) {
409                         comp = &pi->comps[compno];
410                         for (resno = 0; resno < comp->numresolutions; resno++) {
411                                 OPJ_UINT32 dx, dy;
412                                 res = &comp->resolutions[resno];
413                                 dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
414                                 dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
415                                 pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
416                                 pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
417                         }
418                 }
419         }
420         if (!pi->tp_on){
421                         pi->poc.ty0 = pi->ty0;
422                         pi->poc.tx0 = pi->tx0;
423                         pi->poc.ty1 = pi->ty1;
424                         pi->poc.tx1 = pi->tx1;
425                 }
426         for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
427                 for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
428                         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
429                                 comp = &pi->comps[pi->compno];
430                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
431                                         OPJ_UINT32 levelno;
432                                         OPJ_INT32 trx0, try0;
433                                         OPJ_INT32 trx1, try1;
434                                         OPJ_UINT32 rpx, rpy;
435                                         OPJ_INT32 prci, prcj;
436                                         res = &comp->resolutions[pi->resno];
437                                         levelno = comp->numresolutions - 1 - pi->resno;
438                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
439                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
440                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
441                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
442                                         rpx = res->pdx + levelno;
443                                         rpy = res->pdy + levelno;
444                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
445                                                 continue;       
446                                         }
447                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
448                                                 continue;
449                                         }
450                                         
451                                         if ((res->pw==0)||(res->ph==0)) continue;
452                                         
453                                         if ((trx0==trx1)||(try0==try1)) continue;
454                                         
455                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
456                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
457                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
458                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
459                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
460                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
461                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
462                                                 if (!pi->include[index]) {
463                                                         pi->include[index] = 1;
464                                                         return OPJ_TRUE;
465                                                 }       
466 LABEL_SKIP:;
467                                         }
468                                 }
469                         }
470                 }
471         }
472         
473         return OPJ_FALSE;
474 }
475
476 OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi) {
477         opj_pi_comp_t *comp = NULL;
478         opj_pi_resolution_t *res = NULL;
479         OPJ_UINT32 index = 0;
480
481         if (!pi->first) {
482                 comp = &pi->comps[pi->compno];
483                 goto LABEL_SKIP;
484         } else {
485                 pi->first = 0;
486         }
487
488         for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
489                 OPJ_UINT32 resno;
490                 comp = &pi->comps[pi->compno];
491                 pi->dx = 0;
492                 pi->dy = 0;
493                 for (resno = 0; resno < comp->numresolutions; resno++) {
494                         OPJ_UINT32 dx, dy;
495                         res = &comp->resolutions[resno];
496                         dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
497                         dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
498                         pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
499                         pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
500                 }
501                 if (!pi->tp_on){
502                         pi->poc.ty0 = pi->ty0;
503                         pi->poc.tx0 = pi->tx0;
504                         pi->poc.ty1 = pi->ty1;
505                         pi->poc.tx1 = pi->tx1;
506                 }
507                 for (pi->y = pi->poc.ty0; pi->y < pi->poc.ty1; pi->y += (OPJ_INT32)(pi->dy - (OPJ_UINT32)(pi->y % (OPJ_INT32)pi->dy))) {
508                         for (pi->x = pi->poc.tx0; pi->x < pi->poc.tx1; pi->x += (OPJ_INT32)(pi->dx - (OPJ_UINT32)(pi->x % (OPJ_INT32)pi->dx))) {
509                                 for (pi->resno = pi->poc.resno0; pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
510                                         OPJ_UINT32 levelno;
511                                         OPJ_INT32 trx0, try0;
512                                         OPJ_INT32 trx1, try1;
513                                         OPJ_UINT32 rpx, rpy;
514                                         OPJ_INT32 prci, prcj;
515                                         res = &comp->resolutions[pi->resno];
516                                         levelno = comp->numresolutions - 1 - pi->resno;
517                                         trx0 = opj_int_ceildiv(pi->tx0, (OPJ_INT32)(comp->dx << levelno));
518                                         try0 = opj_int_ceildiv(pi->ty0, (OPJ_INT32)(comp->dy << levelno));
519                                         trx1 = opj_int_ceildiv(pi->tx1, (OPJ_INT32)(comp->dx << levelno));
520                                         try1 = opj_int_ceildiv(pi->ty1, (OPJ_INT32)(comp->dy << levelno));
521                                         rpx = res->pdx + levelno;
522                                         rpy = res->pdy + levelno;
523                                         if (!((pi->y % (OPJ_INT32)(comp->dy << rpy) == 0) || ((pi->y == pi->ty0) && ((try0 << levelno) % (1 << rpy))))){
524                                                 continue;       
525                                         }
526                                         if (!((pi->x % (OPJ_INT32)(comp->dx << rpx) == 0) || ((pi->x == pi->tx0) && ((trx0 << levelno) % (1 << rpx))))){
527                                                 continue;
528                                         }
529                                         
530                                         if ((res->pw==0)||(res->ph==0)) continue;
531                                         
532                                         if ((trx0==trx1)||(try0==try1)) continue;
533                                         
534                                         prci = opj_int_floordivpow2(opj_int_ceildiv(pi->x, (OPJ_INT32)(comp->dx << levelno)), (OPJ_INT32)res->pdx)
535                                                  - opj_int_floordivpow2(trx0, (OPJ_INT32)res->pdx);
536                                         prcj = opj_int_floordivpow2(opj_int_ceildiv(pi->y, (OPJ_INT32)(comp->dy << levelno)), (OPJ_INT32)res->pdy)
537                                                  - opj_int_floordivpow2(try0, (OPJ_INT32)res->pdy);
538                                         pi->precno = (OPJ_UINT32)(prci + prcj * (OPJ_INT32)res->pw);
539                                         for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
540                                                 index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
541                                                 if (!pi->include[index]) {
542                                                         pi->include[index] = 1;
543                                                         return OPJ_TRUE;
544                                                 }
545 LABEL_SKIP:;
546                                         }
547                                 }
548                         }
549                 }
550         }
551         
552         return OPJ_FALSE;
553 }
554
555 void opj_get_encoding_parameters(       const opj_image_t *p_image,
556                                     const opj_cp_t *p_cp,
557                                     OPJ_UINT32 p_tileno,
558                                     OPJ_INT32 * p_tx0,
559                                     OPJ_INT32  * p_tx1,
560                                     OPJ_INT32  * p_ty0,
561                                     OPJ_INT32  * p_ty1,
562                                     OPJ_UINT32 * p_dx_min,
563                                     OPJ_UINT32 * p_dy_min,
564                                     OPJ_UINT32 * p_max_prec,
565                                     OPJ_UINT32 * p_max_res )
566 {
567         /* loop */
568         OPJ_UINT32  compno, resno;
569         /* pointers */
570         const opj_tcp_t *l_tcp = 00;
571         const opj_tccp_t * l_tccp = 00;
572         const opj_image_comp_t * l_img_comp = 00;
573
574         /* position in x and y of tile */
575         OPJ_UINT32 p, q;
576
577         /* preconditions */
578         assert(p_cp != 00);
579         assert(p_image != 00);
580         assert(p_tileno < p_cp->tw * p_cp->th);
581
582         /* initializations */
583         l_tcp = &p_cp->tcps [p_tileno];
584         l_img_comp = p_image->comps;
585         l_tccp = l_tcp->tccps;
586
587         /* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
588         p = p_tileno % p_cp->tw;
589         q = p_tileno / p_cp->tw;
590
591         /* find extent of tile */
592         *p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
593         *p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
594         *p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
595         *p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
596
597         /* max precision is 0 (can only grow) */
598         *p_max_prec = 0;
599         *p_max_res = 0;
600
601         /* take the largest value for dx_min and dy_min */
602         *p_dx_min = 0x7fffffff;
603         *p_dy_min  = 0x7fffffff;
604
605         for (compno = 0; compno < p_image->numcomps; ++compno) {
606                 /* arithmetic variables to calculate */
607                 OPJ_UINT32 l_level_no;
608                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
609                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
610                 OPJ_UINT32 l_pdx, l_pdy;
611                 OPJ_UINT32 l_pw, l_ph;
612                 OPJ_UINT32 l_product;
613                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
614
615                 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
616                 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
617                 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
618                 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
619
620                 if (l_tccp->numresolutions > *p_max_res) {
621                         *p_max_res = l_tccp->numresolutions;
622                 }
623
624                 /* use custom size for precincts */
625                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
626                         OPJ_UINT32 l_dx, l_dy;
627
628                         /* precinct width and height */
629                         l_pdx = l_tccp->prcw[resno];
630                         l_pdy = l_tccp->prch[resno];
631
632                         l_dx = l_img_comp->dx * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
633                         l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
634
635                         /* take the minimum size for dx for each comp and resolution */
636                         *p_dx_min = opj_uint_min(*p_dx_min, l_dx);
637                         *p_dy_min = opj_uint_min(*p_dy_min, l_dy);
638
639                         /* various calculations of extents */
640                         l_level_no = l_tccp->numresolutions - 1 - resno;
641
642                         l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
643                         l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
644                         l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
645                         l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
646
647                         l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
648                         l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
649                         l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
650
651                         py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
652
653                         l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
654                         l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
655
656                         l_product = l_pw * l_ph;
657
658                         /* update precision */
659                         if (l_product > *p_max_prec) {
660                                 *p_max_prec = l_product;
661                         }
662                 }
663                 ++l_img_comp;
664                 ++l_tccp;
665         }
666 }
667
668
669 void opj_get_all_encoding_parameters(   const opj_image_t *p_image,
670                                         const opj_cp_t *p_cp,
671                                         OPJ_UINT32 tileno,
672                                         OPJ_INT32 * p_tx0,
673                                         OPJ_INT32 * p_tx1,
674                                         OPJ_INT32 * p_ty0,
675                                         OPJ_INT32 * p_ty1,
676                                         OPJ_UINT32 * p_dx_min,
677                                         OPJ_UINT32 * p_dy_min,
678                                         OPJ_UINT32 * p_max_prec,
679                                         OPJ_UINT32 * p_max_res,
680                                         OPJ_UINT32 ** p_resolutions )
681 {
682         /* loop*/
683         OPJ_UINT32 compno, resno;
684
685         /* pointers*/
686         const opj_tcp_t *tcp = 00;
687         const opj_tccp_t * l_tccp = 00;
688         const opj_image_comp_t * l_img_comp = 00;
689
690         /* to store l_dx, l_dy, w and h for each resolution and component.*/
691         OPJ_UINT32 * lResolutionPtr;
692
693         /* position in x and y of tile*/
694         OPJ_UINT32 p, q;
695
696         /* preconditions in debug*/
697         assert(p_cp != 00);
698         assert(p_image != 00);
699         assert(tileno < p_cp->tw * p_cp->th);
700
701         /* initializations*/
702         tcp = &p_cp->tcps [tileno];
703         l_tccp = tcp->tccps;
704         l_img_comp = p_image->comps;
705
706         /* position in x and y of tile*/
707         p = tileno % p_cp->tw;
708         q = tileno / p_cp->tw;
709
710         /* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
711         *p_tx0 = opj_int_max((OPJ_INT32)(p_cp->tx0 + p * p_cp->tdx), (OPJ_INT32)p_image->x0);
712         *p_tx1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + (p + 1) * p_cp->tdx), (OPJ_INT32)p_image->x1);
713         *p_ty0 = opj_int_max((OPJ_INT32)(p_cp->ty0 + q * p_cp->tdy), (OPJ_INT32)p_image->y0);
714         *p_ty1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + (q + 1) * p_cp->tdy), (OPJ_INT32)p_image->y1);
715
716         /* max precision and resolution is 0 (can only grow)*/
717         *p_max_prec = 0;
718         *p_max_res = 0;
719
720         /* take the largest value for dx_min and dy_min*/
721         *p_dx_min = 0x7fffffff;
722         *p_dy_min = 0x7fffffff;
723
724         for (compno = 0; compno < p_image->numcomps; ++compno) {
725                 /* aritmetic variables to calculate*/
726                 OPJ_UINT32 l_level_no;
727                 OPJ_INT32 l_rx0, l_ry0, l_rx1, l_ry1;
728                 OPJ_INT32 l_px0, l_py0, l_px1, py1;
729                 OPJ_UINT32 l_product;
730                 OPJ_INT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
731                 OPJ_UINT32 l_pdx, l_pdy , l_pw , l_ph;
732
733                 lResolutionPtr = p_resolutions[compno];
734
735                 l_tcx0 = opj_int_ceildiv(*p_tx0, (OPJ_INT32)l_img_comp->dx);
736                 l_tcy0 = opj_int_ceildiv(*p_ty0, (OPJ_INT32)l_img_comp->dy);
737                 l_tcx1 = opj_int_ceildiv(*p_tx1, (OPJ_INT32)l_img_comp->dx);
738                 l_tcy1 = opj_int_ceildiv(*p_ty1, (OPJ_INT32)l_img_comp->dy);
739
740                 if (l_tccp->numresolutions > *p_max_res) {
741                         *p_max_res = l_tccp->numresolutions;
742                 }
743
744                 /* use custom size for precincts*/
745                 l_level_no = l_tccp->numresolutions - 1;
746                 for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
747                         OPJ_UINT32 l_dx, l_dy;
748
749                         /* precinct width and height*/
750                         l_pdx = l_tccp->prcw[resno];
751                         l_pdy = l_tccp->prch[resno];
752                         *lResolutionPtr++ = l_pdx;
753                         *lResolutionPtr++ = l_pdy;
754                         l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
755                         l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
756                         /* take the minimum size for l_dx for each comp and resolution*/
757                         *p_dx_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dx_min, (OPJ_INT32)l_dx);
758                         *p_dy_min = (OPJ_UINT32)opj_int_min((OPJ_INT32)*p_dy_min, (OPJ_INT32)l_dy);
759
760                         /* various calculations of extents*/
761                         l_rx0 = opj_int_ceildivpow2(l_tcx0, (OPJ_INT32)l_level_no);
762                         l_ry0 = opj_int_ceildivpow2(l_tcy0, (OPJ_INT32)l_level_no);
763                         l_rx1 = opj_int_ceildivpow2(l_tcx1, (OPJ_INT32)l_level_no);
764                         l_ry1 = opj_int_ceildivpow2(l_tcy1, (OPJ_INT32)l_level_no);
765                         l_px0 = opj_int_floordivpow2(l_rx0, (OPJ_INT32)l_pdx) << l_pdx;
766                         l_py0 = opj_int_floordivpow2(l_ry0, (OPJ_INT32)l_pdy) << l_pdy;
767                         l_px1 = opj_int_ceildivpow2(l_rx1, (OPJ_INT32)l_pdx) << l_pdx;
768                         py1 = opj_int_ceildivpow2(l_ry1, (OPJ_INT32)l_pdy) << l_pdy;
769                         l_pw = (l_rx0==l_rx1)?0:(OPJ_UINT32)((l_px1 - l_px0) >> l_pdx);
770                         l_ph = (l_ry0==l_ry1)?0:(OPJ_UINT32)((py1 - l_py0) >> l_pdy);
771                         *lResolutionPtr++ = l_pw;
772                         *lResolutionPtr++ = l_ph;
773                         l_product = l_pw * l_ph;
774                         
775             /* update precision*/
776                         if (l_product > *p_max_prec) {
777                                 *p_max_prec = l_product;
778                         }
779
780                         --l_level_no;
781                 }
782                 ++l_tccp;
783                 ++l_img_comp;
784         }
785 }
786
787 opj_pi_iterator_t * opj_pi_create(      const opj_image_t *image,
788                                     const opj_cp_t *cp,
789                                     OPJ_UINT32 tileno )
790 {
791         /* loop*/
792         OPJ_UINT32 pino, compno;
793         /* number of poc in the p_pi*/
794         OPJ_UINT32 l_poc_bound;
795
796         /* pointers to tile coding parameters and components.*/
797         opj_pi_iterator_t *l_pi = 00;
798         opj_tcp_t *tcp = 00;
799         const opj_tccp_t *tccp = 00;
800
801         /* current packet iterator being allocated*/
802         opj_pi_iterator_t *l_current_pi = 00;
803
804         /* preconditions in debug*/
805         assert(cp != 00);
806         assert(image != 00);
807         assert(tileno < cp->tw * cp->th);
808
809         /* initializations*/
810         tcp = &cp->tcps[tileno];
811         l_poc_bound = tcp->numpocs+1;
812
813         /* memory allocations*/
814         l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound), sizeof(opj_pi_iterator_t));
815         if (!l_pi) {
816                 return NULL;
817         }
818
819         l_current_pi = l_pi;
820         for (pino = 0; pino < l_poc_bound ; ++pino) {
821
822                 l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps, sizeof(opj_pi_comp_t));
823                 if (! l_current_pi->comps) {
824                         opj_pi_destroy(l_pi, l_poc_bound);
825                         return NULL;
826                 }
827
828                 l_current_pi->numcomps = image->numcomps;
829
830                 for (compno = 0; compno < image->numcomps; ++compno) {
831                         opj_pi_comp_t *comp = &l_current_pi->comps[compno];
832
833                         tccp = &tcp->tccps[compno];
834
835                         comp->resolutions = (opj_pi_resolution_t*) opj_calloc(tccp->numresolutions, sizeof(opj_pi_resolution_t));
836                         if (!comp->resolutions) {
837                                 opj_pi_destroy(l_pi, l_poc_bound);
838                                 return 00;
839                         }
840
841                         comp->numresolutions = tccp->numresolutions;
842                 }
843                 ++l_current_pi;
844         }
845         return l_pi;
846 }
847
848 void opj_pi_update_encode_poc_and_final (   opj_cp_t *p_cp,
849                                             OPJ_UINT32 p_tileno,
850                                             OPJ_INT32 p_tx0,
851                                             OPJ_INT32 p_tx1,
852                                             OPJ_INT32 p_ty0,
853                                             OPJ_INT32 p_ty1,
854                                             OPJ_UINT32 p_max_prec,
855                                             OPJ_UINT32 p_max_res,
856                                             OPJ_UINT32 p_dx_min,
857                                             OPJ_UINT32 p_dy_min)
858 {
859         /* loop*/
860         OPJ_UINT32 pino;
861         /* tile coding parameter*/
862         opj_tcp_t *l_tcp = 00;
863         /* current poc being updated*/
864         opj_poc_t * l_current_poc = 00;
865
866         /* number of pocs*/
867         OPJ_UINT32 l_poc_bound;
868
869     OPJ_ARG_NOT_USED(p_max_res);
870
871         /* preconditions in debug*/
872         assert(p_cp != 00);
873         assert(p_tileno < p_cp->tw * p_cp->th);
874
875         /* initializations*/
876         l_tcp = &p_cp->tcps [p_tileno];
877         /* number of iterations in the loop */
878         l_poc_bound = l_tcp->numpocs+1;
879
880         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
881            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
882         l_current_poc = l_tcp->pocs;
883
884         l_current_poc->compS = l_current_poc->compno0;
885         l_current_poc->compE = l_current_poc->compno1;
886         l_current_poc->resS = l_current_poc->resno0;
887         l_current_poc->resE = l_current_poc->resno1;
888         l_current_poc->layE = l_current_poc->layno1;
889
890         /* special treatment for the first element*/
891         l_current_poc->layS = 0;
892         l_current_poc->prg  = l_current_poc->prg1;
893         l_current_poc->prcS = 0;
894
895         l_current_poc->prcE = p_max_prec;
896         l_current_poc->txS = (OPJ_UINT32)p_tx0;
897         l_current_poc->txE = (OPJ_UINT32)p_tx1;
898         l_current_poc->tyS = (OPJ_UINT32)p_ty0;
899         l_current_poc->tyE = (OPJ_UINT32)p_ty1;
900         l_current_poc->dx = p_dx_min;
901         l_current_poc->dy = p_dy_min;
902
903         ++ l_current_poc;
904         for (pino = 1;pino < l_poc_bound ; ++pino) {
905                 l_current_poc->compS = l_current_poc->compno0;
906                 l_current_poc->compE= l_current_poc->compno1;
907                 l_current_poc->resS = l_current_poc->resno0;
908                 l_current_poc->resE = l_current_poc->resno1;
909                 l_current_poc->layE = l_current_poc->layno1;
910                 l_current_poc->prg  = l_current_poc->prg1;
911                 l_current_poc->prcS = 0;
912                 /* special treatment here different from the first element*/
913                 l_current_poc->layS = (l_current_poc->layE > (l_current_poc-1)->layE) ? l_current_poc->layE : 0;
914
915                 l_current_poc->prcE = p_max_prec;
916                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
917                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
918                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
919                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
920                 l_current_poc->dx = p_dx_min;
921                 l_current_poc->dy = p_dy_min;
922                 ++ l_current_poc;
923         }
924 }
925
926 void opj_pi_update_encode_not_poc (     opj_cp_t *p_cp,
927                                     OPJ_UINT32 p_num_comps,
928                                     OPJ_UINT32 p_tileno,
929                                     OPJ_INT32 p_tx0,
930                                     OPJ_INT32 p_tx1,
931                                     OPJ_INT32 p_ty0,
932                                     OPJ_INT32 p_ty1,
933                                     OPJ_UINT32 p_max_prec,
934                                     OPJ_UINT32 p_max_res,
935                                     OPJ_UINT32 p_dx_min,
936                                     OPJ_UINT32 p_dy_min)
937 {
938         /* loop*/
939         OPJ_UINT32 pino;
940         /* tile coding parameter*/
941         opj_tcp_t *l_tcp = 00;
942         /* current poc being updated*/
943         opj_poc_t * l_current_poc = 00;
944         /* number of pocs*/
945         OPJ_UINT32 l_poc_bound;
946
947         /* preconditions in debug*/
948         assert(p_cp != 00);
949         assert(p_tileno < p_cp->tw * p_cp->th);
950
951         /* initializations*/
952         l_tcp = &p_cp->tcps [p_tileno];
953
954         /* number of iterations in the loop */
955         l_poc_bound = l_tcp->numpocs+1;
956
957         /* start at first element, and to make sure the compiler will not make a calculation each time in the loop
958            store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
959         l_current_poc = l_tcp->pocs;
960
961         for (pino = 0; pino < l_poc_bound ; ++pino) {
962                 l_current_poc->compS = 0;
963                 l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
964                 l_current_poc->resS = 0;
965                 l_current_poc->resE = p_max_res;
966                 l_current_poc->layS = 0;
967                 l_current_poc->layE = l_tcp->numlayers;
968                 l_current_poc->prg  = l_tcp->prg;
969                 l_current_poc->prcS = 0;
970                 l_current_poc->prcE = p_max_prec;
971                 l_current_poc->txS = (OPJ_UINT32)p_tx0;
972                 l_current_poc->txE = (OPJ_UINT32)p_tx1;
973                 l_current_poc->tyS = (OPJ_UINT32)p_ty0;
974                 l_current_poc->tyE = (OPJ_UINT32)p_ty1;
975                 l_current_poc->dx = p_dx_min;
976                 l_current_poc->dy = p_dy_min;
977                 ++ l_current_poc;
978         }
979 }
980
981 void opj_pi_update_decode_poc (opj_pi_iterator_t * p_pi,
982                                opj_tcp_t * p_tcp,
983                                OPJ_UINT32 p_max_precision,
984                                OPJ_UINT32 p_max_res)
985 {
986         /* loop*/
987         OPJ_UINT32 pino;
988
989         /* encoding prameters to set*/
990         OPJ_UINT32 l_bound;
991
992         opj_pi_iterator_t * l_current_pi = 00;
993         opj_poc_t* l_current_poc = 0;
994
995     OPJ_ARG_NOT_USED(p_max_res);
996
997         /* preconditions in debug*/
998         assert(p_pi != 00);
999         assert(p_tcp != 00);
1000
1001         /* initializations*/
1002         l_bound = p_tcp->numpocs+1;
1003         l_current_pi = p_pi;
1004         l_current_poc = p_tcp->pocs;
1005
1006         for     (pino = 0;pino<l_bound;++pino) {
1007                 l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
1008                 l_current_pi->first = 1;
1009
1010                 l_current_pi->poc.resno0 = l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
1011                 l_current_pi->poc.compno0 = l_current_poc->compno0; /* Component Index #0 (Start) */
1012                 l_current_pi->poc.layno0 = 0;
1013                 l_current_pi->poc.precno0 = 0;
1014                 l_current_pi->poc.resno1 = l_current_poc->resno1; /* Resolution Level Index #0 (End) */
1015                 l_current_pi->poc.compno1 = l_current_poc->compno1; /* Component Index #0 (End) */
1016                 l_current_pi->poc.layno1 = l_current_poc->layno1; /* Layer Index #0 (End) */
1017                 l_current_pi->poc.precno1 = p_max_precision;
1018                 ++l_current_pi;
1019                 ++l_current_poc;
1020         }
1021 }
1022
1023 void opj_pi_update_decode_not_poc (opj_pi_iterator_t * p_pi,
1024                                    opj_tcp_t * p_tcp,
1025                                    OPJ_UINT32 p_max_precision,
1026                                    OPJ_UINT32 p_max_res)
1027 {
1028         /* loop*/
1029         OPJ_UINT32 pino;
1030
1031         /* encoding prameters to set*/
1032         OPJ_UINT32 l_bound;
1033
1034         opj_pi_iterator_t * l_current_pi = 00;
1035         /* preconditions in debug*/
1036         assert(p_tcp != 00);
1037         assert(p_pi != 00);
1038
1039         /* initializations*/
1040         l_bound = p_tcp->numpocs+1;
1041         l_current_pi = p_pi;
1042
1043         for (pino = 0;pino<l_bound;++pino) {
1044                 l_current_pi->poc.prg = p_tcp->prg;
1045                 l_current_pi->first = 1;
1046                 l_current_pi->poc.resno0 = 0;
1047                 l_current_pi->poc.compno0 = 0;
1048                 l_current_pi->poc.layno0 = 0;
1049                 l_current_pi->poc.precno0 = 0;
1050                 l_current_pi->poc.resno1 = p_max_res;
1051                 l_current_pi->poc.compno1 = l_current_pi->numcomps;
1052                 l_current_pi->poc.layno1 = p_tcp->numlayers;
1053                 l_current_pi->poc.precno1 = p_max_precision;
1054                 ++l_current_pi;
1055         }
1056 }
1057
1058
1059
1060 OPJ_BOOL opj_pi_check_next_level(       OPJ_INT32 pos,
1061                                                                 opj_cp_t *cp,
1062                                                                 OPJ_UINT32 tileno,
1063                                                                 OPJ_UINT32 pino,
1064                                                                 const OPJ_CHAR *prog)
1065 {
1066         OPJ_INT32 i;
1067         opj_tcp_t *tcps =&cp->tcps[tileno];
1068         opj_poc_t *tcp = &tcps->pocs[pino];
1069
1070         if(pos>=0){
1071                 for(i=pos;pos>=0;i--){
1072                         switch(prog[i]){
1073                     case 'R':
1074                             if(tcp->res_t==tcp->resE){
1075                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1076                                             return OPJ_TRUE;
1077                                     }else{
1078                                             return OPJ_FALSE;
1079                                     }
1080                             }else{
1081                                     return OPJ_TRUE;
1082                             }
1083                             break;
1084                     case 'C':
1085                             if(tcp->comp_t==tcp->compE){
1086                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1087                                             return OPJ_TRUE;
1088                                     }else{
1089                                             return OPJ_FALSE;
1090                                     }
1091                             }else{
1092                                     return OPJ_TRUE;
1093                             }
1094                             break;
1095                     case 'L':
1096                             if(tcp->lay_t==tcp->layE){
1097                                     if(opj_pi_check_next_level(pos-1,cp,tileno,pino,prog)){
1098                                             return OPJ_TRUE;
1099                                     }else{
1100                                             return OPJ_FALSE;
1101                                     }
1102                             }else{
1103                                     return OPJ_TRUE;
1104                             }
1105                             break;
1106                     case 'P':
1107                             switch(tcp->prg){
1108                     case OPJ_LRCP: /* fall through */
1109                     case OPJ_RLCP:
1110                                             if(tcp->prc_t == tcp->prcE){
1111                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1112                                                             return OPJ_TRUE;
1113                                                     }else{
1114                                                             return OPJ_FALSE;
1115                                                     }
1116                                             }else{
1117                                                     return OPJ_TRUE;
1118                                             }
1119                                             break;
1120                             default:
1121                                     if(tcp->tx0_t == tcp->txE){
1122                                             /*TY*/
1123                                             if(tcp->ty0_t == tcp->tyE){
1124                                                     if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1125                                                             return OPJ_TRUE;
1126                                                     }else{
1127                                                             return OPJ_FALSE;
1128                                                     }
1129                                             }else{
1130                                                     return OPJ_TRUE;
1131                                             }/*TY*/
1132                                     }else{
1133                                             return OPJ_TRUE;
1134                                     }
1135                                     break;
1136                             }/*end case P*/
1137                     }/*end switch*/
1138                 }/*end for*/
1139         }/*end if*/
1140         return OPJ_FALSE;
1141 }
1142
1143
1144 /*
1145 ==========================================================
1146    Packet iterator interface
1147 ==========================================================
1148 */
1149 opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
1150                                                                                 opj_cp_t *p_cp,
1151                                                                                 OPJ_UINT32 p_tile_no)
1152 {
1153         /* loop */
1154         OPJ_UINT32 pino;
1155         OPJ_UINT32 compno, resno;
1156
1157         /* to store w, h, dx and dy fro all components and resolutions */
1158         OPJ_UINT32 * l_tmp_data;
1159         OPJ_UINT32 ** l_tmp_ptr;
1160
1161         /* encoding prameters to set */
1162         OPJ_UINT32 l_max_res;
1163         OPJ_UINT32 l_max_prec;
1164         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1165         OPJ_UINT32 l_dx_min,l_dy_min;
1166         OPJ_UINT32 l_bound;
1167         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1168         OPJ_UINT32 l_data_stride;
1169
1170         /* pointers */
1171         opj_pi_iterator_t *l_pi = 00;
1172         opj_tcp_t *l_tcp = 00;
1173         const opj_tccp_t *l_tccp = 00;
1174         opj_pi_comp_t *l_current_comp = 00;
1175         opj_image_comp_t * l_img_comp = 00;
1176         opj_pi_iterator_t * l_current_pi = 00;
1177         OPJ_UINT32 * l_encoding_value_ptr = 00;
1178
1179         /* preconditions in debug */
1180         assert(p_cp != 00);
1181         assert(p_image != 00);
1182         assert(p_tile_no < p_cp->tw * p_cp->th);
1183
1184         /* initializations */
1185         l_tcp = &p_cp->tcps[p_tile_no];
1186         l_bound = l_tcp->numpocs+1;
1187
1188         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1189         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1190                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1191         if
1192                 (! l_tmp_data)
1193         {
1194                 return 00;
1195         }
1196         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1197                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1198         if
1199                 (! l_tmp_ptr)
1200         {
1201                 opj_free(l_tmp_data);
1202                 return 00;
1203         }
1204
1205         /* memory allocation for pi */
1206         l_pi = opj_pi_create(p_image, p_cp, p_tile_no);
1207         if (!l_pi) {
1208                 opj_free(l_tmp_data);
1209                 opj_free(l_tmp_ptr);
1210                 return 00;
1211         }
1212
1213         l_encoding_value_ptr = l_tmp_data;
1214         /* update pointer array */
1215         for
1216                 (compno = 0; compno < p_image->numcomps; ++compno)
1217         {
1218                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1219                 l_encoding_value_ptr += l_data_stride;
1220         }
1221         /* get encoding parameters */
1222         opj_get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
1223
1224         /* step calculations */
1225         l_step_p = 1;
1226         l_step_c = l_max_prec * l_step_p;
1227         l_step_r = p_image->numcomps * l_step_c;
1228         l_step_l = l_max_res * l_step_r;
1229
1230         /* set values for first packet iterator */
1231         l_current_pi = l_pi;
1232
1233         /* memory allocation for include */
1234         l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
1235         if
1236                 (!l_current_pi->include)
1237         {
1238                 opj_free(l_tmp_data);
1239                 opj_free(l_tmp_ptr);
1240                 opj_pi_destroy(l_pi, l_bound);
1241                 return 00;
1242         }
1243
1244         /* special treatment for the first packet iterator */
1245         l_current_comp = l_current_pi->comps;
1246         l_img_comp = p_image->comps;
1247         l_tccp = l_tcp->tccps;
1248
1249         l_current_pi->tx0 = l_tx0;
1250         l_current_pi->ty0 = l_ty0;
1251         l_current_pi->tx1 = l_tx1;
1252         l_current_pi->ty1 = l_ty1;
1253
1254         /*l_current_pi->dx = l_img_comp->dx;*/
1255         /*l_current_pi->dy = l_img_comp->dy;*/
1256
1257         l_current_pi->step_p = l_step_p;
1258         l_current_pi->step_c = l_step_c;
1259         l_current_pi->step_r = l_step_r;
1260         l_current_pi->step_l = l_step_l;
1261
1262         /* allocation for components and number of components has already been calculated by opj_pi_create */
1263         for
1264                 (compno = 0; compno < l_current_pi->numcomps; ++compno)
1265         {
1266                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1267                 l_encoding_value_ptr = l_tmp_ptr[compno];
1268
1269                 l_current_comp->dx = l_img_comp->dx;
1270                 l_current_comp->dy = l_img_comp->dy;
1271                 /* resolutions have already been initialized */
1272                 for
1273                         (resno = 0; resno < l_current_comp->numresolutions; resno++)
1274                 {
1275                         l_res->pdx = *(l_encoding_value_ptr++);
1276                         l_res->pdy = *(l_encoding_value_ptr++);
1277                         l_res->pw =  *(l_encoding_value_ptr++);
1278                         l_res->ph =  *(l_encoding_value_ptr++);
1279                         ++l_res;
1280                 }
1281                 ++l_current_comp;
1282                 ++l_img_comp;
1283                 ++l_tccp;
1284         }
1285         ++l_current_pi;
1286
1287         for (pino = 1 ; pino<l_bound ; ++pino )
1288         {
1289                 l_current_comp = l_current_pi->comps;
1290                 l_img_comp = p_image->comps;
1291                 l_tccp = l_tcp->tccps;
1292
1293                 l_current_pi->tx0 = l_tx0;
1294                 l_current_pi->ty0 = l_ty0;
1295                 l_current_pi->tx1 = l_tx1;
1296                 l_current_pi->ty1 = l_ty1;
1297                 /*l_current_pi->dx = l_dx_min;*/
1298                 /*l_current_pi->dy = l_dy_min;*/
1299                 l_current_pi->step_p = l_step_p;
1300                 l_current_pi->step_c = l_step_c;
1301                 l_current_pi->step_r = l_step_r;
1302                 l_current_pi->step_l = l_step_l;
1303
1304                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1305                 for
1306                         (compno = 0; compno < l_current_pi->numcomps; ++compno)
1307                 {
1308                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1309                         l_encoding_value_ptr = l_tmp_ptr[compno];
1310
1311                         l_current_comp->dx = l_img_comp->dx;
1312                         l_current_comp->dy = l_img_comp->dy;
1313                         /* resolutions have already been initialized */
1314                         for
1315                                 (resno = 0; resno < l_current_comp->numresolutions; resno++)
1316                         {
1317                                 l_res->pdx = *(l_encoding_value_ptr++);
1318                                 l_res->pdy = *(l_encoding_value_ptr++);
1319                                 l_res->pw =  *(l_encoding_value_ptr++);
1320                                 l_res->ph =  *(l_encoding_value_ptr++);
1321                                 ++l_res;
1322                         }
1323                         ++l_current_comp;
1324                         ++l_img_comp;
1325                         ++l_tccp;
1326                 }
1327                 /* special treatment*/
1328                 l_current_pi->include = (l_current_pi-1)->include;
1329                 ++l_current_pi;
1330         }
1331         opj_free(l_tmp_data);
1332         l_tmp_data = 00;
1333         opj_free(l_tmp_ptr);
1334         l_tmp_ptr = 00;
1335         if
1336                 (l_tcp->POC)
1337         {
1338                 opj_pi_update_decode_poc (l_pi,l_tcp,l_max_prec,l_max_res);
1339         }
1340         else
1341         {
1342                 opj_pi_update_decode_not_poc(l_pi,l_tcp,l_max_prec,l_max_res);
1343         }
1344         return l_pi;
1345 }
1346
1347
1348
1349 opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
1350                                             opj_cp_t *p_cp,
1351                                             OPJ_UINT32 p_tile_no,
1352                                             J2K_T2_MODE p_t2_mode )
1353 {
1354         /* loop*/
1355         OPJ_UINT32 pino;
1356         OPJ_UINT32 compno, resno;
1357
1358         /* to store w, h, dx and dy fro all components and resolutions*/
1359         OPJ_UINT32 * l_tmp_data;
1360         OPJ_UINT32 ** l_tmp_ptr;
1361
1362         /* encoding prameters to set*/
1363         OPJ_UINT32 l_max_res;
1364         OPJ_UINT32 l_max_prec;
1365         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1366         OPJ_UINT32 l_dx_min,l_dy_min;
1367         OPJ_UINT32 l_bound;
1368         OPJ_UINT32 l_step_p , l_step_c , l_step_r , l_step_l ;
1369         OPJ_UINT32 l_data_stride;
1370
1371         /* pointers*/
1372         opj_pi_iterator_t *l_pi = 00;
1373         opj_tcp_t *l_tcp = 00;
1374         const opj_tccp_t *l_tccp = 00;
1375         opj_pi_comp_t *l_current_comp = 00;
1376         opj_image_comp_t * l_img_comp = 00;
1377         opj_pi_iterator_t * l_current_pi = 00;
1378         OPJ_UINT32 * l_encoding_value_ptr = 00;
1379
1380         /* preconditions in debug*/
1381         assert(p_cp != 00);
1382         assert(p_image != 00);
1383         assert(p_tile_no < p_cp->tw * p_cp->th);
1384
1385         /* initializations*/
1386         l_tcp = &p_cp->tcps[p_tile_no];
1387         l_bound = l_tcp->numpocs+1;
1388
1389         l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
1390         l_tmp_data = (OPJ_UINT32*)opj_malloc(
1391                 l_data_stride * p_image->numcomps * sizeof(OPJ_UINT32));
1392         if (! l_tmp_data) {
1393                 return 00;
1394         }
1395
1396         l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
1397                 p_image->numcomps * sizeof(OPJ_UINT32 *));
1398         if (! l_tmp_ptr) {
1399                 opj_free(l_tmp_data);
1400                 return 00;
1401         }
1402
1403         /* memory allocation for pi*/
1404         l_pi = opj_pi_create(p_image,p_cp,p_tile_no);
1405         if (!l_pi) {
1406                 opj_free(l_tmp_data);
1407                 opj_free(l_tmp_ptr);
1408                 return 00;
1409         }
1410
1411         l_encoding_value_ptr = l_tmp_data;
1412         /* update pointer array*/
1413         for (compno = 0; compno < p_image->numcomps; ++compno) {
1414                 l_tmp_ptr[compno] = l_encoding_value_ptr;
1415                 l_encoding_value_ptr += l_data_stride;
1416         }
1417
1418         /* get encoding parameters*/
1419         opj_get_all_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res,l_tmp_ptr);
1420
1421         /* step calculations*/
1422         l_step_p = 1;
1423         l_step_c = l_max_prec * l_step_p;
1424         l_step_r = p_image->numcomps * l_step_c;
1425         l_step_l = l_max_res * l_step_r;
1426
1427         /* set values for first packet iterator*/
1428         l_pi->tp_on = p_cp->m_specific_param.m_enc.m_tp_on;
1429         l_current_pi = l_pi;
1430
1431         /* memory allocation for include*/
1432         l_current_pi->include = (OPJ_INT16*) opj_calloc(l_tcp->numlayers * l_step_l, sizeof(OPJ_INT16));
1433         if (!l_current_pi->include) {
1434                 opj_free(l_tmp_data);
1435                 opj_free(l_tmp_ptr);
1436                 opj_pi_destroy(l_pi, l_bound);
1437                 return 00;
1438         }
1439
1440         /* special treatment for the first packet iterator*/
1441         l_current_comp = l_current_pi->comps;
1442         l_img_comp = p_image->comps;
1443         l_tccp = l_tcp->tccps;
1444         l_current_pi->tx0 = l_tx0;
1445         l_current_pi->ty0 = l_ty0;
1446         l_current_pi->tx1 = l_tx1;
1447         l_current_pi->ty1 = l_ty1;
1448         l_current_pi->dx = l_dx_min;
1449         l_current_pi->dy = l_dy_min;
1450         l_current_pi->step_p = l_step_p;
1451         l_current_pi->step_c = l_step_c;
1452         l_current_pi->step_r = l_step_r;
1453         l_current_pi->step_l = l_step_l;
1454
1455         /* allocation for components and number of components has already been calculated by opj_pi_create */
1456         for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1457                 opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1458                 l_encoding_value_ptr = l_tmp_ptr[compno];
1459
1460                 l_current_comp->dx = l_img_comp->dx;
1461                 l_current_comp->dy = l_img_comp->dy;
1462
1463                 /* resolutions have already been initialized */
1464                 for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1465                         l_res->pdx = *(l_encoding_value_ptr++);
1466                         l_res->pdy = *(l_encoding_value_ptr++);
1467                         l_res->pw =  *(l_encoding_value_ptr++);
1468                         l_res->ph =  *(l_encoding_value_ptr++);
1469                         ++l_res;
1470                 }
1471
1472                 ++l_current_comp;
1473                 ++l_img_comp;
1474                 ++l_tccp;
1475         }
1476         ++l_current_pi;
1477
1478         for (pino = 1 ; pino<l_bound ; ++pino ) {
1479                 l_current_comp = l_current_pi->comps;
1480                 l_img_comp = p_image->comps;
1481                 l_tccp = l_tcp->tccps;
1482
1483                 l_current_pi->tx0 = l_tx0;
1484                 l_current_pi->ty0 = l_ty0;
1485                 l_current_pi->tx1 = l_tx1;
1486                 l_current_pi->ty1 = l_ty1;
1487                 l_current_pi->dx = l_dx_min;
1488                 l_current_pi->dy = l_dy_min;
1489                 l_current_pi->step_p = l_step_p;
1490                 l_current_pi->step_c = l_step_c;
1491                 l_current_pi->step_r = l_step_r;
1492                 l_current_pi->step_l = l_step_l;
1493
1494                 /* allocation for components and number of components has already been calculated by opj_pi_create */
1495                 for (compno = 0; compno < l_current_pi->numcomps; ++compno) {
1496                         opj_pi_resolution_t *l_res = l_current_comp->resolutions;
1497                         l_encoding_value_ptr = l_tmp_ptr[compno];
1498
1499                         l_current_comp->dx = l_img_comp->dx;
1500                         l_current_comp->dy = l_img_comp->dy;
1501                         /* resolutions have already been initialized */
1502                         for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
1503                                 l_res->pdx = *(l_encoding_value_ptr++);
1504                                 l_res->pdy = *(l_encoding_value_ptr++);
1505                                 l_res->pw =  *(l_encoding_value_ptr++);
1506                                 l_res->ph =  *(l_encoding_value_ptr++);
1507                                 ++l_res;
1508                         }
1509                         ++l_current_comp;
1510                         ++l_img_comp;
1511                         ++l_tccp;
1512                 }
1513
1514                 /* special treatment*/
1515                 l_current_pi->include = (l_current_pi-1)->include;
1516                 ++l_current_pi;
1517         }
1518
1519         opj_free(l_tmp_data);
1520         l_tmp_data = 00;
1521         opj_free(l_tmp_ptr);
1522         l_tmp_ptr = 00;
1523
1524     if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
1525                 opj_pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1526         }
1527         else {
1528                 opj_pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1529         }
1530
1531         return l_pi;
1532 }
1533
1534 void opj_pi_create_encode(      opj_pi_iterator_t *pi,
1535                                                         opj_cp_t *cp,
1536                                                         OPJ_UINT32 tileno,
1537                                                         OPJ_UINT32 pino,
1538                                                         OPJ_UINT32 tpnum,
1539                                                         OPJ_INT32 tppos,
1540                                                         J2K_T2_MODE t2_mode)
1541 {
1542         const OPJ_CHAR *prog;
1543         OPJ_INT32 i;
1544         OPJ_UINT32 incr_top=1,resetX=0;
1545         opj_tcp_t *tcps =&cp->tcps[tileno];
1546         opj_poc_t *tcp= &tcps->pocs[pino];
1547
1548         prog = opj_j2k_convert_progression_order(tcp->prg);
1549
1550         pi[pino].first = 1;
1551         pi[pino].poc.prg = tcp->prg;
1552
1553     if(!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) && (t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz)))){
1554                 pi[pino].poc.resno0 = tcp->resS;
1555                 pi[pino].poc.resno1 = tcp->resE;
1556                 pi[pino].poc.compno0 = tcp->compS;
1557                 pi[pino].poc.compno1 = tcp->compE;
1558                 pi[pino].poc.layno0 = tcp->layS;
1559                 pi[pino].poc.layno1 = tcp->layE;
1560                 pi[pino].poc.precno0 = tcp->prcS;
1561                 pi[pino].poc.precno1 = tcp->prcE;
1562                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1563                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1564                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1565                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1566         }else {
1567                 for(i=tppos+1;i<4;i++){
1568                         switch(prog[i]){
1569                         case 'R':
1570                                 pi[pino].poc.resno0 = tcp->resS;
1571                                 pi[pino].poc.resno1 = tcp->resE;
1572                                 break;
1573                         case 'C':
1574                                 pi[pino].poc.compno0 = tcp->compS;
1575                                 pi[pino].poc.compno1 = tcp->compE;
1576                                 break;
1577                         case 'L':
1578                                 pi[pino].poc.layno0 = tcp->layS;
1579                                 pi[pino].poc.layno1 = tcp->layE;
1580                                 break;
1581                         case 'P':
1582                                 switch(tcp->prg){
1583                                 case OPJ_LRCP:
1584                                 case OPJ_RLCP:
1585                                         pi[pino].poc.precno0 = tcp->prcS;
1586                                         pi[pino].poc.precno1 = tcp->prcE;
1587                                         break;
1588                                 default:
1589                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->txS;
1590                                         pi[pino].poc.ty0 = (OPJ_INT32)tcp->tyS;
1591                                         pi[pino].poc.tx1 = (OPJ_INT32)tcp->txE;
1592                                         pi[pino].poc.ty1 = (OPJ_INT32)tcp->tyE;
1593                                         break;
1594                                 }
1595                                 break;
1596                         }
1597                 }
1598
1599                 if(tpnum==0){
1600                         for(i=tppos;i>=0;i--){
1601                                 switch(prog[i]){
1602                                 case 'C':
1603                                         tcp->comp_t = tcp->compS;
1604                                         pi[pino].poc.compno0 = tcp->comp_t;
1605                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1606                                         tcp->comp_t+=1;
1607                                         break;
1608                                 case 'R':
1609                                         tcp->res_t = tcp->resS;
1610                                         pi[pino].poc.resno0 = tcp->res_t;
1611                                         pi[pino].poc.resno1 = tcp->res_t+1;
1612                                         tcp->res_t+=1;
1613                                         break;
1614                                 case 'L':
1615                                         tcp->lay_t = tcp->layS;
1616                                         pi[pino].poc.layno0 = tcp->lay_t;
1617                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1618                                         tcp->lay_t+=1;
1619                                         break;
1620                                 case 'P':
1621                                         switch(tcp->prg){
1622                                         case OPJ_LRCP:
1623                                         case OPJ_RLCP:
1624                                                 tcp->prc_t = tcp->prcS;
1625                                                 pi[pino].poc.precno0 = tcp->prc_t;
1626                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1627                                                 tcp->prc_t+=1;
1628                                                 break;
1629                                         default:
1630                                                 tcp->tx0_t = tcp->txS;
1631                                                 tcp->ty0_t = tcp->tyS;
1632                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1633                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx));
1634                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1635                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1636                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1637                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1638                                                 break;
1639                                         }
1640                                         break;
1641                                 }
1642                         }
1643                         incr_top=1;
1644                 }else{
1645                         for(i=tppos;i>=0;i--){
1646                                 switch(prog[i]){
1647                                 case 'C':
1648                                         pi[pino].poc.compno0 = tcp->comp_t-1;
1649                                         pi[pino].poc.compno1 = tcp->comp_t;
1650                                         break;
1651                                 case 'R':
1652                                         pi[pino].poc.resno0 = tcp->res_t-1;
1653                                         pi[pino].poc.resno1 = tcp->res_t;
1654                                         break;
1655                                 case 'L':
1656                                         pi[pino].poc.layno0 = tcp->lay_t-1;
1657                                         pi[pino].poc.layno1 = tcp->lay_t;
1658                                         break;
1659                                 case 'P':
1660                                         switch(tcp->prg){
1661                                         case OPJ_LRCP:
1662                                         case OPJ_RLCP:
1663                                                 pi[pino].poc.precno0 = tcp->prc_t-1;
1664                                                 pi[pino].poc.precno1 = tcp->prc_t;
1665                                                 break;
1666                                         default:
1667                                                 pi[pino].poc.tx0 = (OPJ_INT32)(tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx));
1668                                                 pi[pino].poc.tx1 = (OPJ_INT32)tcp->tx0_t ;
1669                                                 pi[pino].poc.ty0 = (OPJ_INT32)(tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy));
1670                                                 pi[pino].poc.ty1 = (OPJ_INT32)tcp->ty0_t ;
1671                                                 break;
1672                                         }
1673                                         break;
1674                                 }
1675                                 if(incr_top==1){
1676                                         switch(prog[i]){
1677                                         case 'R':
1678                                                 if(tcp->res_t==tcp->resE){
1679                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1680                                                                 tcp->res_t = tcp->resS;
1681                                                                 pi[pino].poc.resno0 = tcp->res_t;
1682                                                                 pi[pino].poc.resno1 = tcp->res_t+1;
1683                                                                 tcp->res_t+=1;
1684                                                                 incr_top=1;
1685                                                         }else{
1686                                                                 incr_top=0;
1687                                                         }
1688                                                 }else{
1689                                                         pi[pino].poc.resno0 = tcp->res_t;
1690                                                         pi[pino].poc.resno1 = tcp->res_t+1;
1691                                                         tcp->res_t+=1;
1692                                                         incr_top=0;
1693                                                 }
1694                                                 break;
1695                                         case 'C':
1696                                                 if(tcp->comp_t ==tcp->compE){
1697                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1698                                                                 tcp->comp_t = tcp->compS;
1699                                                                 pi[pino].poc.compno0 = tcp->comp_t;
1700                                                                 pi[pino].poc.compno1 = tcp->comp_t+1;
1701                                                                 tcp->comp_t+=1;
1702                                                                 incr_top=1;
1703                                                         }else{
1704                                                                 incr_top=0;
1705                                                         }
1706                                                 }else{
1707                                                         pi[pino].poc.compno0 = tcp->comp_t;
1708                                                         pi[pino].poc.compno1 = tcp->comp_t+1;
1709                                                         tcp->comp_t+=1;
1710                                                         incr_top=0;
1711                                                 }
1712                                                 break;
1713                                         case 'L':
1714                                                 if(tcp->lay_t == tcp->layE){
1715                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1716                                                                 tcp->lay_t = tcp->layS;
1717                                                                 pi[pino].poc.layno0 = tcp->lay_t;
1718                                                                 pi[pino].poc.layno1 = tcp->lay_t+1;
1719                                                                 tcp->lay_t+=1;
1720                                                                 incr_top=1;
1721                                                         }else{
1722                                                                 incr_top=0;
1723                                                         }
1724                                                 }else{
1725                                                         pi[pino].poc.layno0 = tcp->lay_t;
1726                                                         pi[pino].poc.layno1 = tcp->lay_t+1;
1727                                                         tcp->lay_t+=1;
1728                                                         incr_top=0;
1729                                                 }
1730                                                 break;
1731                                         case 'P':
1732                                                 switch(tcp->prg){
1733                                                 case OPJ_LRCP:
1734                                                 case OPJ_RLCP:
1735                                                         if(tcp->prc_t == tcp->prcE){
1736                                                                 if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1737                                                                         tcp->prc_t = tcp->prcS;
1738                                                                         pi[pino].poc.precno0 = tcp->prc_t;
1739                                                                         pi[pino].poc.precno1 = tcp->prc_t+1;
1740                                                                         tcp->prc_t+=1;
1741                                                                         incr_top=1;
1742                                                                 }else{
1743                                                                         incr_top=0;
1744                                                                 }
1745                                                         }else{
1746                                                                 pi[pino].poc.precno0 = tcp->prc_t;
1747                                                                 pi[pino].poc.precno1 = tcp->prc_t+1;
1748                                                                 tcp->prc_t+=1;
1749                                                                 incr_top=0;
1750                                                         }
1751                                                         break;
1752                                                 default:
1753                                                         if(tcp->tx0_t >= tcp->txE){
1754                                                                 if(tcp->ty0_t >= tcp->tyE){
1755                                                                         if(opj_pi_check_next_level(i-1,cp,tileno,pino,prog)){
1756                                                                                 tcp->ty0_t = tcp->tyS;
1757                                                                                 pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1758                                                                                 pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1759                                                                                 tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1760                                                                                 incr_top=1;resetX=1;
1761                                                                         }else{
1762                                                                                 incr_top=0;resetX=0;
1763                                                                         }
1764                                                                 }else{
1765                                                                         pi[pino].poc.ty0 = (OPJ_INT32)tcp->ty0_t;
1766                                                                         pi[pino].poc.ty1 = (OPJ_INT32)(tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy));
1767                                                                         tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
1768                                                                         incr_top=0;resetX=1;
1769                                                                 }
1770                                                                 if(resetX==1){
1771                                                                         tcp->tx0_t = tcp->txS;
1772                                                                         pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1773                                                                         pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1774                                                                         tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1775                                                                 }
1776                                                         }else{
1777                                                                 pi[pino].poc.tx0 = (OPJ_INT32)tcp->tx0_t;
1778                                                                 pi[pino].poc.tx1 = (OPJ_INT32)(tcp->tx0_t + tcp->dx- (tcp->tx0_t % tcp->dx));
1779                                                                 tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
1780                                                                 incr_top=0;
1781                                                         }
1782                                                         break;
1783                                                 }
1784                                                 break;
1785                                         }
1786                                 }
1787                         }
1788                 }
1789         }
1790 }
1791
1792 void opj_pi_destroy(opj_pi_iterator_t *p_pi,
1793                     OPJ_UINT32 p_nb_elements)
1794 {
1795         OPJ_UINT32 compno, pino;
1796         opj_pi_iterator_t *l_current_pi = p_pi;
1797     if (p_pi) {
1798                 if (p_pi->include) {
1799                         opj_free(p_pi->include);
1800                         p_pi->include = 00;
1801                 }
1802                 for (pino = 0; pino < p_nb_elements; ++pino){
1803                         if(l_current_pi->comps) {
1804                                 opj_pi_comp_t *l_current_component = l_current_pi->comps;
1805                 for (compno = 0; compno < l_current_pi->numcomps; compno++){
1806                     if(l_current_component->resolutions) {
1807                                                 opj_free(l_current_component->resolutions);
1808                                                 l_current_component->resolutions = 00;
1809                                         }
1810
1811                                         ++l_current_component;
1812                                 }
1813                                 opj_free(l_current_pi->comps);
1814                                 l_current_pi->comps = 0;
1815                         }
1816                         ++l_current_pi;
1817                 }
1818                 opj_free(p_pi);
1819         }
1820 }
1821
1822
1823
1824 void opj_pi_update_encoding_parameters( const opj_image_t *p_image,
1825                                         opj_cp_t *p_cp,
1826                                         OPJ_UINT32 p_tile_no )
1827 {
1828         /* encoding parameters to set */
1829         OPJ_UINT32 l_max_res;
1830         OPJ_UINT32 l_max_prec;
1831         OPJ_INT32 l_tx0,l_tx1,l_ty0,l_ty1;
1832         OPJ_UINT32 l_dx_min,l_dy_min;
1833
1834         /* pointers */
1835         opj_tcp_t *l_tcp = 00;
1836
1837         /* preconditions */
1838         assert(p_cp != 00);
1839         assert(p_image != 00);
1840         assert(p_tile_no < p_cp->tw * p_cp->th);
1841
1842         l_tcp = &(p_cp->tcps[p_tile_no]);
1843
1844         /* get encoding parameters */
1845         opj_get_encoding_parameters(p_image,p_cp,p_tile_no,&l_tx0,&l_tx1,&l_ty0,&l_ty1,&l_dx_min,&l_dy_min,&l_max_prec,&l_max_res);
1846
1847         if (l_tcp->POC) {
1848                 opj_pi_update_encode_poc_and_final(p_cp,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1849         }
1850         else {
1851                 opj_pi_update_encode_not_poc(p_cp,p_image->numcomps,p_tile_no,l_tx0,l_tx1,l_ty0,l_ty1,l_max_prec,l_max_res,l_dx_min,l_dy_min);
1852         }
1853 }
1854
1855 OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi) {
1856         switch (pi->poc.prg) {
1857                 case OPJ_LRCP:
1858                         return opj_pi_next_lrcp(pi);
1859                 case OPJ_RLCP:
1860                         return opj_pi_next_rlcp(pi);
1861                 case OPJ_RPCL:
1862                         return opj_pi_next_rpcl(pi);
1863                 case OPJ_PCRL:
1864                         return opj_pi_next_pcrl(pi);
1865                 case OPJ_CPRL:
1866                         return opj_pi_next_cprl(pi);
1867                 case OPJ_PROG_UNKNOWN:
1868                         return OPJ_FALSE;
1869         }
1870         
1871         return OPJ_FALSE;
1872 }