2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2007, Jonathan Ballard <dzonatas@dzonux.net>
9 * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
35 #include <xmmintrin.h>
38 #include "opj_includes.h"
40 /** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
43 #define WS(i) v->mem[(i)*2]
44 #define WD(i) v->mem[(1+(i)*2)]
46 /** @name Local data structures */
49 typedef struct dwt_local {
60 typedef struct v4dwt_local {
67 static const float dwt_alpha = 1.586134342f; /* 12994 */
68 static const float dwt_beta = 0.052980118f; /* 434 */
69 static const float dwt_gamma = -0.882911075f; /* -7233 */
70 static const float dwt_delta = -0.443506852f; /* -3633 */
72 static const float K = 1.230174105f; /* 10078 */
73 /* FIXME: What is this constant? */
74 static const float c13318 = 1.625732422f;
79 Virtual function type for wavelet transform in 1-D
81 typedef void (*DWT1DFN)(dwt_t* v);
83 /** @name Local static functions */
87 Forward lazy transform (horizontal)
89 static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas);
91 Forward lazy transform (vertical)
93 static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas);
95 Inverse lazy transform (horizontal)
97 static void dwt_interleave_h(dwt_t* h, int *a);
99 Inverse lazy transform (vertical)
101 static void dwt_interleave_v(dwt_t* v, int *a, int x);
103 Forward 5-3 wavelet transform in 1-D
105 static void dwt_encode_1(int *a, int dn, int sn, int cas);
107 Inverse 5-3 wavelet transform in 1-D
109 static void dwt_decode_1(dwt_t *v);
111 Forward 9-7 wavelet transform in 1-D
113 static void dwt_encode_1_real(int *a, int dn, int sn, int cas);
115 Explicit calculation of the Quantization Stepsizes
117 static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize);
119 Inverse wavelet transform in 2-D.
121 static void dwt_decode_tile(opj_tcd_tilecomp_t* tilec, int i, DWT1DFN fn);
127 #define S(i) a[(i)*2]
128 #define D(i) a[(1+(i)*2)]
129 #define S_(i) ((i)<0?S(0):((i)>=sn?S(sn-1):S(i)))
130 #define D_(i) ((i)<0?D(0):((i)>=dn?D(dn-1):D(i)))
132 #define SS_(i) ((i)<0?S(0):((i)>=dn?S(dn-1):S(i)))
133 #define DD_(i) ((i)<0?D(0):((i)>=sn?D(sn-1):D(i)))
136 /* This table contains the norms of the 5-3 wavelets for different bands. */
138 static const double dwt_norms[4][10] = {
139 {1.000, 1.500, 2.750, 5.375, 10.68, 21.34, 42.67, 85.33, 170.7, 341.3},
140 {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
141 {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
142 {.7186, .9218, 1.586, 3.043, 6.019, 12.01, 24.00, 47.97, 95.93}
146 /* This table contains the norms of the 9-7 wavelets for different bands. */
148 static const double dwt_norms_real[4][10] = {
149 {1.000, 1.965, 4.177, 8.403, 16.90, 33.84, 67.69, 135.3, 270.6, 540.9},
150 {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
151 {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
152 {2.080, 3.865, 8.307, 17.18, 34.71, 69.59, 139.3, 278.6, 557.2}
156 ==========================================================
158 ==========================================================
162 /* Forward lazy transform (horizontal). */
164 static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas) {
166 for (i=0; i<sn; i++) b[i]=a[2*i+cas];
167 for (i=0; i<dn; i++) b[sn+i]=a[(2*i+1-cas)];
171 /* Forward lazy transform (vertical). */
173 static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas) {
175 for (i=0; i<sn; i++) b[i*x]=a[2*i+cas];
176 for (i=0; i<dn; i++) b[(sn+i)*x]=a[(2*i+1-cas)];
180 /* Inverse lazy transform (horizontal). */
182 static void dwt_interleave_h(dwt_t* h, int *a) {
184 int *bi = h->mem + h->cas;
191 bi = h->mem + 1 - h->cas;
200 /* Inverse lazy transform (vertical). */
202 static void dwt_interleave_v(dwt_t* v, int *a, int x) {
204 int *bi = v->mem + v->cas;
211 ai = a + (v->sn * x);
212 bi = v->mem + 1 - v->cas;
223 /* Forward 5-3 wavelet transform in 1-D. */
225 static void dwt_encode_1(int *a, int dn, int sn, int cas) {
229 if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
230 for (i = 0; i < dn; i++) D(i) -= (S_(i) + S_(i + 1)) >> 1;
231 for (i = 0; i < sn; i++) S(i) += (D_(i - 1) + D_(i) + 2) >> 2;
234 if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
237 for (i = 0; i < dn; i++) S(i) -= (DD_(i) + DD_(i - 1)) >> 1;
238 for (i = 0; i < sn; i++) D(i) += (SS_(i) + SS_(i + 1) + 2) >> 2;
244 /* Inverse 5-3 wavelet transform in 1-D. */
246 static void dwt_decode_1_(int *a, int dn, int sn, int cas) {
250 if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
251 for (i = 0; i < sn; i++) S(i) -= (D_(i - 1) + D_(i) + 2) >> 2;
252 for (i = 0; i < dn; i++) D(i) += (S_(i) + S_(i + 1)) >> 1;
255 if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
258 for (i = 0; i < sn; i++) D(i) -= (SS_(i) + SS_(i + 1) + 2) >> 2;
259 for (i = 0; i < dn; i++) S(i) += (DD_(i) + DD_(i - 1)) >> 1;
265 /* Inverse 5-3 wavelet transform in 1-D. */
267 static void dwt_decode_1(dwt_t *v) {
268 dwt_decode_1_(v->mem, v->dn, v->sn, v->cas);
272 /* Forward 9-7 wavelet transform in 1-D. */
274 static void dwt_encode_1_real(int *a, int dn, int sn, int cas) {
277 if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
278 for (i = 0; i < dn; i++)
279 D(i) -= fix_mul(S_(i) + S_(i + 1), 12993);
280 for (i = 0; i < sn; i++)
281 S(i) -= fix_mul(D_(i - 1) + D_(i), 434);
282 for (i = 0; i < dn; i++)
283 D(i) += fix_mul(S_(i) + S_(i + 1), 7233);
284 for (i = 0; i < sn; i++)
285 S(i) += fix_mul(D_(i - 1) + D_(i), 3633);
286 for (i = 0; i < dn; i++)
287 D(i) = fix_mul(D(i), 5038); /*5038 */
288 for (i = 0; i < sn; i++)
289 S(i) = fix_mul(S(i), 6659); /*6660 */
292 if ((sn > 0) || (dn > 1)) { /* NEW : CASE ONE ELEMENT */
293 for (i = 0; i < dn; i++)
294 S(i) -= fix_mul(DD_(i) + DD_(i - 1), 12993);
295 for (i = 0; i < sn; i++)
296 D(i) -= fix_mul(SS_(i) + SS_(i + 1), 434);
297 for (i = 0; i < dn; i++)
298 S(i) += fix_mul(DD_(i) + DD_(i - 1), 7233);
299 for (i = 0; i < sn; i++)
300 D(i) += fix_mul(SS_(i) + SS_(i + 1), 3633);
301 for (i = 0; i < dn; i++)
302 S(i) = fix_mul(S(i), 5038); /*5038 */
303 for (i = 0; i < sn; i++)
304 D(i) = fix_mul(D(i), 6659); /*6660 */
309 static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize) {
311 p = int_floorlog2(stepsize) - 13;
312 n = 11 - int_floorlog2(stepsize);
313 bandno_stepsize->mant = (n < 0 ? stepsize >> -n : stepsize << n) & 0x7ff;
314 bandno_stepsize->expn = numbps - p;
318 ==========================================================
320 ==========================================================
324 /* Forward 5-3 wavelet transform in 2-D. */
326 void dwt_encode(opj_tcd_tilecomp_t * tilec) {
333 w = tilec->x1-tilec->x0;
334 l = tilec->numresolutions-1;
337 for (i = 0; i < l; i++) {
338 int rw; /* width of the resolution level computed */
339 int rh; /* height of the resolution level computed */
340 int rw1; /* width of the resolution level once lower than computed one */
341 int rh1; /* height of the resolution level once lower than computed one */
342 int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
343 int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
346 rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
347 rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
348 rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
349 rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
351 cas_row = tilec->resolutions[l - i].x0 % 2;
352 cas_col = tilec->resolutions[l - i].y0 % 2;
356 bj = (int*)opj_malloc(rh * sizeof(int));
357 for (j = 0; j < rw; j++) {
359 for (k = 0; k < rh; k++) bj[k] = aj[k*w];
360 dwt_encode_1(bj, dn, sn, cas_col);
361 dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
367 bj = (int*)opj_malloc(rw * sizeof(int));
368 for (j = 0; j < rh; j++) {
370 for (k = 0; k < rw; k++) bj[k] = aj[k];
371 dwt_encode_1(bj, dn, sn, cas_row);
372 dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
380 /* Inverse 5-3 wavelet transform in 2-D. */
382 void dwt_decode(opj_tcd_tilecomp_t* tilec, int numres) {
383 dwt_decode_tile(tilec, numres, &dwt_decode_1);
388 /* Get gain of 5-3 wavelet transform. */
390 int dwt_getgain(int orient) {
393 if (orient == 1 || orient == 2)
399 /* Get norm of 5-3 wavelet. */
401 double dwt_getnorm(int level, int orient) {
402 return dwt_norms[orient][level];
406 /* Forward 9-7 wavelet transform in 2-D. */
409 void dwt_encode_real(opj_tcd_tilecomp_t * tilec) {
416 w = tilec->x1-tilec->x0;
417 l = tilec->numresolutions-1;
420 for (i = 0; i < l; i++) {
421 int rw; /* width of the resolution level computed */
422 int rh; /* height of the resolution level computed */
423 int rw1; /* width of the resolution level once lower than computed one */
424 int rh1; /* height of the resolution level once lower than computed one */
425 int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
426 int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
429 rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
430 rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
431 rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
432 rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
434 cas_row = tilec->resolutions[l - i].x0 % 2;
435 cas_col = tilec->resolutions[l - i].y0 % 2;
439 bj = (int*)opj_malloc(rh * sizeof(int));
440 for (j = 0; j < rw; j++) {
442 for (k = 0; k < rh; k++) bj[k] = aj[k*w];
443 dwt_encode_1_real(bj, dn, sn, cas_col);
444 dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
450 bj = (int*)opj_malloc(rw * sizeof(int));
451 for (j = 0; j < rh; j++) {
453 for (k = 0; k < rw; k++) bj[k] = aj[k];
454 dwt_encode_1_real(bj, dn, sn, cas_row);
455 dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
463 /* Get gain of 9-7 wavelet transform. */
465 int dwt_getgain_real(int orient) {
471 /* Get norm of 9-7 wavelet. */
473 double dwt_getnorm_real(int level, int orient) {
474 return dwt_norms_real[orient][level];
477 void dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, int prec) {
478 int numbands, bandno;
479 numbands = 3 * tccp->numresolutions - 2;
480 for (bandno = 0; bandno < numbands; bandno++) {
482 int resno, level, orient, gain;
484 resno = (bandno == 0) ? 0 : ((bandno - 1) / 3 + 1);
485 orient = (bandno == 0) ? 0 : ((bandno - 1) % 3 + 1);
486 level = tccp->numresolutions - 1 - resno;
487 gain = (tccp->qmfbid == 0) ? 0 : ((orient == 0) ? 0 : (((orient == 1) || (orient == 2)) ? 1 : 2));
488 if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
491 double norm = dwt_norms_real[orient][level];
492 stepsize = (1 << (gain)) / norm;
494 dwt_encode_stepsize((int) floor(stepsize * 8192.0), prec + gain, &tccp->stepsizes[bandno]);
500 /* Determine maximum computed resolution level for inverse wavelet transform */
502 static int dwt_decode_max_resolution(opj_tcd_resolution_t* restrict r, int i) {
507 if( mr < ( w = r->x1 - r->x0 ) )
509 if( mr < ( w = r->y1 - r->y0 ) )
517 /* Inverse wavelet transform in 2-D. */
519 static void dwt_decode_tile(opj_tcd_tilecomp_t* tilec, int numres, DWT1DFN dwt_1D) {
523 opj_tcd_resolution_t* tr = tilec->resolutions;
525 int rw = tr->x1 - tr->x0; /* width of the resolution level computed */
526 int rh = tr->y1 - tr->y0; /* height of the resolution level computed */
528 int w = tilec->x1 - tilec->x0;
530 h.mem = (int*)opj_aligned_malloc(dwt_decode_max_resolution(tr, numres) * sizeof(int));
534 int * restrict tiledp = tilec->data;
541 rw = tr->x1 - tr->x0;
542 rh = tr->y1 - tr->y0;
547 for(j = 0; j < rh; ++j) {
548 dwt_interleave_h(&h, &tiledp[j*w]);
550 memcpy(&tiledp[j*w], h.mem, rw * sizeof(int));
556 for(j = 0; j < rw; ++j){
558 dwt_interleave_v(&v, &tiledp[j], w);
560 for(k = 0; k < rh; ++k) {
561 tiledp[k * w + j] = v.mem[k];
565 opj_aligned_free(h.mem);
568 static void v4dwt_interleave_h(v4dwt_t* restrict w, float* restrict a, int x, int size){
569 float* restrict bi = (float*) (w->wavelet + w->cas);
572 for(k = 0; k < 2; ++k){
573 if (count + 3 * x < size && ((size_t) a & 0x0f) == 0 && ((size_t) bi & 0x0f) == 0 && (x & 0x0f) == 0) {
575 for(i = 0; i < count; ++i){
587 for(i = 0; i < count; ++i){
591 if(j > size) continue;
594 if(j > size) continue;
597 if(j > size) continue;
601 bi = (float*) (w->wavelet + 1 - w->cas);
608 static void v4dwt_interleave_v(v4dwt_t* restrict v , float* restrict a , int x){
609 v4* restrict bi = v->wavelet + v->cas;
611 for(i = 0; i < v->sn; ++i){
612 memcpy(&bi[i*2], &a[i*x], 4 * sizeof(float));
615 bi = v->wavelet + 1 - v->cas;
616 for(i = 0; i < v->dn; ++i){
617 memcpy(&bi[i*2], &a[i*x], 4 * sizeof(float));
623 static void v4dwt_decode_step1_sse(v4* w, int count, const __m128 c){
624 __m128* restrict vw = (__m128*) w;
626 /* 4x unrolled loop */
627 for(i = 0; i < count >> 2; ++i){
628 *vw = _mm_mul_ps(*vw, c);
630 *vw = _mm_mul_ps(*vw, c);
632 *vw = _mm_mul_ps(*vw, c);
634 *vw = _mm_mul_ps(*vw, c);
638 for(i = 0; i < count; ++i){
639 *vw = _mm_mul_ps(*vw, c);
644 static void v4dwt_decode_step2_sse(v4* l, v4* w, int k, int m, __m128 c){
645 __m128* restrict vl = (__m128*) l;
646 __m128* restrict vw = (__m128*) w;
648 __m128 tmp1, tmp2, tmp3;
650 for(i = 0; i < m; ++i){
653 vw[-1] = _mm_add_ps(tmp2, _mm_mul_ps(_mm_add_ps(tmp1, tmp3), c));
661 c = _mm_add_ps(c, c);
662 c = _mm_mul_ps(c, vl[0]);
665 vw[-1] = _mm_add_ps(tmp, c);
672 static void v4dwt_decode_step1(v4* w, int count, const float c){
673 float* restrict fw = (float*) w;
675 for(i = 0; i < count; ++i){
676 float tmp1 = fw[i*8 ];
677 float tmp2 = fw[i*8 + 1];
678 float tmp3 = fw[i*8 + 2];
679 float tmp4 = fw[i*8 + 3];
681 fw[i*8 + 1] = tmp2 * c;
682 fw[i*8 + 2] = tmp3 * c;
683 fw[i*8 + 3] = tmp4 * c;
687 static void v4dwt_decode_step2(v4* l, v4* w, int k, int m, float c){
688 float* restrict fl = (float*) l;
689 float* restrict fw = (float*) w;
691 for(i = 0; i < m; ++i){
692 float tmp1_1 = fl[0];
693 float tmp1_2 = fl[1];
694 float tmp1_3 = fl[2];
695 float tmp1_4 = fl[3];
696 float tmp2_1 = fw[-4];
697 float tmp2_2 = fw[-3];
698 float tmp2_3 = fw[-2];
699 float tmp2_4 = fw[-1];
700 float tmp3_1 = fw[0];
701 float tmp3_2 = fw[1];
702 float tmp3_3 = fw[2];
703 float tmp3_4 = fw[3];
704 fw[-4] = tmp2_1 + ((tmp1_1 + tmp3_1) * c);
705 fw[-3] = tmp2_2 + ((tmp1_2 + tmp3_2) * c);
706 fw[-2] = tmp2_3 + ((tmp1_3 + tmp3_3) * c);
707 fw[-1] = tmp2_4 + ((tmp1_4 + tmp3_4) * c);
738 /* Inverse 9-7 wavelet transform in 1-D. */
740 static void v4dwt_decode(v4dwt_t* restrict dwt){
743 if(!((dwt->dn > 0) || (dwt->sn > 1))){
749 if(!((dwt->sn > 0) || (dwt->dn > 1))) {
756 v4dwt_decode_step1_sse(dwt->wavelet+a, dwt->sn, _mm_set1_ps(K));
757 v4dwt_decode_step1_sse(dwt->wavelet+b, dwt->dn, _mm_set1_ps(c13318));
758 v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(dwt_delta));
759 v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(dwt_gamma));
760 v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(dwt_beta));
761 v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(dwt_alpha));
763 v4dwt_decode_step1(dwt->wavelet+a, dwt->sn, K);
764 v4dwt_decode_step1(dwt->wavelet+b, dwt->dn, c13318);
765 v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), dwt_delta);
766 v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), dwt_gamma);
767 v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), dwt_beta);
768 v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), dwt_alpha);
773 /* Inverse 9-7 wavelet transform in 2-D. */
775 void dwt_decode_real(opj_tcd_tilecomp_t* restrict tilec, int numres){
779 opj_tcd_resolution_t* res = tilec->resolutions;
781 int rw = res->x1 - res->x0; /* width of the resolution level computed */
782 int rh = res->y1 - res->y0; /* height of the resolution level computed */
784 int w = tilec->x1 - tilec->x0;
786 h.wavelet = (v4*) opj_aligned_malloc((dwt_decode_max_resolution(res, numres)+5) * sizeof(v4));
787 v.wavelet = h.wavelet;
790 float * restrict aj = (float*) tilec->data;
791 int bufsize = (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0);
799 rw = res->x1 - res->x0; /* width of the resolution level computed */
800 rh = res->y1 - res->y0; /* height of the resolution level computed */
805 for(j = rh; j > 3; j -= 4){
807 v4dwt_interleave_h(&h, aj, w, bufsize);
809 for(k = rw; --k >= 0;){
810 aj[k ] = h.wavelet[k].f[0];
811 aj[k+w ] = h.wavelet[k].f[1];
812 aj[k+w*2] = h.wavelet[k].f[2];
813 aj[k+w*3] = h.wavelet[k].f[3];
821 v4dwt_interleave_h(&h, aj, w, bufsize);
823 for(k = rw; --k >= 0;){
825 case 3: aj[k+w*2] = h.wavelet[k].f[2];
826 case 2: aj[k+w ] = h.wavelet[k].f[1];
827 case 1: aj[k ] = h.wavelet[k].f[0];
835 aj = (float*) tilec->data;
836 for(j = rw; j > 3; j -= 4){
838 v4dwt_interleave_v(&v, aj, w);
840 for(k = 0; k < rh; ++k){
841 memcpy(&aj[k*w], &v.wavelet[k], 4 * sizeof(float));
848 v4dwt_interleave_v(&v, aj, w);
850 for(k = 0; k < rh; ++k){
851 memcpy(&aj[k*w], &v.wavelet[k], j * sizeof(float));
856 opj_aligned_free(h.wavelet);