git.sesse.net Git - ffmpeg/blob - libavcodec/dirac_dwt_template.c

   1 /*
   2  * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
   3  * Copyright (C) 2008 David Conrad
   4  * Copyright (C) 2015 Open Broadcast Systems Ltd.
   5  * Author    (C) 2015 Rostislav Pehlivanov <atomnuker@gmail.com>
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #if defined(TEMPLATE_8bit)
  25
  26 #    define RENAME(N)   N ## _8bit
  27 #    define TYPE        int16_t
  28 #    undef  TEMPLATE_8bit
  29
  30 #elif defined(TEMPLATE_10bit)
  31
  32 #    define RENAME(N)   N ## _10bit
  33 #    define TYPE        int32_t
  34 #    undef  TEMPLATE_10bit
  35
  36 #elif defined(TEMPLATE_12bit)
  37
  38 #    define RENAME(N)   N ## _12bit
  39 #    define TYPE        int32_t
  40 #    undef  TEMPLATE_12bit
  41
  42 #endif
  43
  44 static void RENAME(vertical_compose53iL0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2,
  45                                           int width)
  46 {
  47     int i;
  48     TYPE *b0 = (TYPE *)_b0;
  49     TYPE *b1 = (TYPE *)_b1;
  50     TYPE *b2 = (TYPE *)_b2;
  51     for (i = 0; i < width; i++)
  52         b1[i] -= (unsigned)((int)(b0[i] + (unsigned)b2[i] + 2) >> 2);
  53 }
  54
  55 static av_always_inline void RENAME(interleave)(TYPE *dst, TYPE *src0, TYPE *src1, int w2,
  56                                                 int add, int shift)
  57 {
  58     int i;
  59     for (i = 0; i < w2; i++) {
  60         dst[2*i  ] = ((int)(src0[i] + (unsigned)add)) >> shift;
  61         dst[2*i+1] = ((int)(src1[i] + (unsigned)add)) >> shift;
  62     }
  63 }
  64
  65 static void RENAME(horizontal_compose_dirac53i)(uint8_t *_b, uint8_t *_temp, int w)
  66 {
  67     int x;
  68     const int w2 = w >> 1;
  69     TYPE *b     = (TYPE *)_b;
  70     TYPE *temp  = (TYPE *)_temp;
  71
  72     temp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
  73     for (x = 1; x < w2; x++) {
  74         temp[x     ] = COMPOSE_53iL0     (b[x+w2-1], b[x     ], b[x+w2]);
  75         temp[x+w2-1] = COMPOSE_DIRAC53iH0(temp[x-1], b[x+w2-1], temp[x]);
  76     }
  77     temp[w-1] = COMPOSE_DIRAC53iH0(temp[w2-1], b[w-1], temp[w2-1]);
  78
  79     RENAME(interleave)(b, temp, temp+w2, w2, 1, 1);
  80 }
  81
  82 static void RENAME(horizontal_compose_dd97i)(uint8_t *_b, uint8_t *_tmp, int w)
  83 {
  84     int x;
  85     const int w2 = w >> 1;
  86     TYPE *b   = (TYPE *)_b;
  87     TYPE *tmp = (TYPE *)_tmp;
  88
  89     tmp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
  90     for (x = 1; x < w2; x++)
  91         tmp[x] = COMPOSE_53iL0(b[x+w2-1], b[x], b[x+w2]);
  92
  93     // extend the edges
  94     tmp[-1]   = tmp[0];
  95     tmp[w2+1] = tmp[w2] = tmp[w2-1];
  96
  97     for (x = 0; x < w2; x++) {
  98         b[2*x  ] = ((int)(tmp[x] + 1U))>>1;
  99         b[2*x+1] = ((int)(COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1U))>>1;
 100     }
 101 }
 102
 103 static void RENAME(horizontal_compose_dd137i)(uint8_t *_b, uint8_t *_tmp, int w)
 104 {
 105     const int w2 = w >> 1;
 106     int x;
 107     TYPE *b   = (TYPE *)_b;
 108     TYPE *tmp = (TYPE *)_tmp;
 109
 110     tmp[0] = COMPOSE_DD137iL0(b[w2], b[w2], b[0], b[w2  ], b[w2+1]);
 111     tmp[1] = COMPOSE_DD137iL0(b[w2], b[w2], b[1], b[w2+1], b[w2+2]);
 112     for (x = 2; x < w2-1; x++)
 113         tmp[x] = COMPOSE_DD137iL0(b[x+w2-2], b[x+w2-1], b[x], b[x+w2], b[x+w2+1]);
 114     tmp[w2-1] = COMPOSE_DD137iL0(b[w-3], b[w-2], b[w2-1], b[w-1], b[w-1]);
 115
 116     // extend the edges
 117     tmp[-1]   = tmp[0];
 118     tmp[w2+1] = tmp[w2] = tmp[w2-1];
 119
 120     for (x = 0; x < w2; x++) {
 121         b[2*x  ] = ((int)(tmp[x] + 1U))>>1;
 122         b[2*x+1] = ((int)(COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1U))>>1;
 123     }
 124 }
 125
 126 static av_always_inline void RENAME(horizontal_compose_haari)(TYPE *b, TYPE *temp,
 127                                                               int w, int shift)
 128 {
 129     const int w2 = w >> 1;
 130     int x;
 131
 132     for (x = 0; x < w2; x++) {
 133         temp[x   ] = COMPOSE_HAARiL0(b[x   ], b[x+w2]);
 134         temp[x+w2] = COMPOSE_HAARiH0(b[x+w2], temp[x]);
 135     }
 136
 137     RENAME(interleave)(b, temp, temp+w2, w2, shift, shift);
 138 }
 139
 140 static void RENAME(horizontal_compose_haar0i)(uint8_t *_b, uint8_t *_temp, int w)
 141 {
 142     TYPE *b    = (TYPE *)_b;
 143     TYPE *temp = (TYPE *)_temp;
 144     RENAME(horizontal_compose_haari)(b, temp, w, 0);
 145 }
 146
 147 static void RENAME(horizontal_compose_haar1i)(uint8_t *_b, uint8_t *_temp, int w)
 148 {
 149     TYPE *b    = (TYPE *)_b;
 150     TYPE *temp = (TYPE *)_temp;
 151     RENAME(horizontal_compose_haari)(b, temp, w, 1);
 152 }
 153
 154 static void RENAME(horizontal_compose_fidelityi)(uint8_t *_b, uint8_t *_tmp, int w)
 155 {
 156     const int w2 = w >> 1;
 157     int i, x;
 158     TYPE v[8];
 159     TYPE *b   = (TYPE *)_b;
 160     TYPE *tmp = (TYPE *)_tmp;
 161
 162     for (x = 0; x < w2; x++) {
 163         for (i = 0; i < 8; i++)
 164             v[i] = b[av_clip(x-3+i, 0, w2-1)];
 165         tmp[x] = COMPOSE_FIDELITYiH0(v[0], v[1], v[2], v[3], b[x+w2], v[4], v[5], v[6], v[7]);
 166     }
 167
 168     for (x = 0; x < w2; x++) {
 169         for (i = 0; i < 8; i++)
 170             v[i] = tmp[av_clip(x-4+i, 0, w2-1)];
 171         tmp[x+w2] = COMPOSE_FIDELITYiL0(v[0], v[1], v[2], v[3], b[x], v[4], v[5], v[6], v[7]);
 172     }
 173
 174     RENAME(interleave)(b, tmp+w2, tmp, w2, 0, 0);
 175 }
 176
 177 static void RENAME(horizontal_compose_daub97i)(uint8_t *_b, uint8_t *_temp, int w)
 178 {
 179     const int w2 = w >> 1;
 180     int x, b0, b1, b2;
 181     TYPE *b    = (TYPE *)_b;
 182     TYPE *temp = (TYPE *)_temp;
 183
 184     temp[0] = COMPOSE_DAUB97iL1(b[w2], b[0], b[w2]);
 185     for (x = 1; x < w2; x++) {
 186         temp[x     ] = COMPOSE_DAUB97iL1(b[x+w2-1], b[x     ], b[x+w2]);
 187         temp[x+w2-1] = COMPOSE_DAUB97iH1(temp[x-1], b[x+w2-1], temp[x]);
 188     }
 189     temp[w-1] = COMPOSE_DAUB97iH1(temp[w2-1], b[w-1], temp[w2-1]);
 190
 191     // second stage combined with interleave and shift
 192     b0 = b2 = COMPOSE_DAUB97iL0(temp[w2], temp[0], temp[w2]);
 193     b[0] = ~((~b0) >> 1);
 194     for (x = 1; x < w2; x++) {
 195         b2 = COMPOSE_DAUB97iL0(temp[x+w2-1], temp[x     ], temp[x+w2]);
 196         b1 = COMPOSE_DAUB97iH0(          b0, temp[x+w2-1], b2        );
 197         b[2*x-1] = ~((~b1) >> 1);
 198         b[2*x  ] = ~((~b2) >> 1);
 199         b0 = b2;
 200     }
 201     b[w-1] = ~((~COMPOSE_DAUB97iH0(b2, temp[w-1], b2)) >> 1);
 202 }
 203
 204 static void RENAME(vertical_compose_dirac53iH0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2,
 205                                                 int width)
 206 {
 207     int i;
 208     TYPE *b0  = (TYPE *)_b0;
 209     TYPE *b1 = (TYPE *)_b1;
 210     TYPE *b2 = (TYPE *)_b2;
 211     for(i=0; i<width; i++){
 212         b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]);
 213     }
 214 }
 215
 216 static void RENAME(vertical_compose_dd97iH0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2,
 217                                              uint8_t *_b3, uint8_t *_b4, int width)
 218 {
 219     int i;
 220     TYPE *b0 = (TYPE *)_b0;
 221     TYPE *b1 = (TYPE *)_b1;
 222     TYPE *b2 = (TYPE *)_b2;
 223     TYPE *b3 = (TYPE *)_b3;
 224     TYPE *b4 = (TYPE *)_b4;
 225     for(i=0; i<width; i++){
 226         b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]);
 227     }
 228 }
 229
 230 static void RENAME(vertical_compose_dd137iL0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2,
 231                                               uint8_t *_b3, uint8_t *_b4, int width)
 232 {
 233     int i;
 234     TYPE *b0 = (TYPE *)_b0;
 235     TYPE *b1 = (TYPE *)_b1;
 236     TYPE *b2 = (TYPE *)_b2;
 237     TYPE *b3 = (TYPE *)_b3;
 238     TYPE *b4 = (TYPE *)_b4;
 239     for(i=0; i<width; i++){
 240         b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]);
 241     }
 242 }
 243
 244 static void RENAME(vertical_compose_haar)(uint8_t *_b0, uint8_t *_b1, int width)
 245 {
 246     int i;
 247     TYPE *b0 = (TYPE *)_b0;
 248     TYPE *b1 = (TYPE *)_b1;
 249
 250     for (i = 0; i < width; i++) {
 251         b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]);
 252         b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]);
 253     }
 254 }
 255
 256 static void RENAME(vertical_compose_fidelityiH0)(uint8_t *_dst, uint8_t *_b[8], int width)
 257 {
 258     int i;
 259     TYPE *dst = (TYPE *)_dst;
 260     TYPE *b0  = (TYPE *)_b[0];
 261     TYPE *b1  = (TYPE *)_b[1];
 262     TYPE *b2  = (TYPE *)_b[2];
 263     TYPE *b3  = (TYPE *)_b[3];
 264     TYPE *b4  = (TYPE *)_b[4];
 265     TYPE *b5  = (TYPE *)_b[5];
 266     TYPE *b6  = (TYPE *)_b[6];
 267     TYPE *b7  = (TYPE *)_b[7];
 268     for(i=0; i<width; i++){
 269         dst[i] = COMPOSE_FIDELITYiH0(b0[i], b1[i], b2[i], b3[i], dst[i], b4[i], b5[i], b6[i], b7[i]);
 270     }
 271 }
 272
 273 static void RENAME(vertical_compose_fidelityiL0)(uint8_t *_dst, uint8_t *_b[8], int width)
 274 {
 275     int i;
 276     TYPE *dst = (TYPE *)_dst;
 277     TYPE *b0  = (TYPE *)_b[0];
 278     TYPE *b1  = (TYPE *)_b[1];
 279     TYPE *b2  = (TYPE *)_b[2];
 280     TYPE *b3  = (TYPE *)_b[3];
 281     TYPE *b4  = (TYPE *)_b[4];
 282     TYPE *b5  = (TYPE *)_b[5];
 283     TYPE *b6  = (TYPE *)_b[6];
 284     TYPE *b7  = (TYPE *)_b[7];
 285
 286     for(i=0; i<width; i++){
 287         dst[i] = COMPOSE_FIDELITYiL0(b0[i], b1[i], b2[i], b3[i], dst[i], b4[i], b5[i], b6[i], b7[i]);
 288     }
 289 }
 290
 291 static void RENAME(vertical_compose_daub97iH0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width)
 292 {
 293     int i;
 294     TYPE *b0 = (TYPE *)_b0;
 295     TYPE *b1 = (TYPE *)_b1;
 296     TYPE *b2 = (TYPE *)_b2;
 297
 298     for(i=0; i<width; i++){
 299         b1[i] = COMPOSE_DAUB97iH0(b0[i], b1[i], b2[i]);
 300     }
 301 }
 302
 303 static void RENAME(vertical_compose_daub97iH1)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width)
 304 {
 305     int i;
 306     TYPE *b0 = (TYPE *)_b0;
 307     TYPE *b1 = (TYPE *)_b1;
 308     TYPE *b2 = (TYPE *)_b2;
 309
 310     for(i=0; i<width; i++){
 311         b1[i] = COMPOSE_DAUB97iH1(b0[i], b1[i], b2[i]);
 312     }
 313 }
 314
 315 static void RENAME(vertical_compose_daub97iL0)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width)
 316 {
 317     int i;
 318     TYPE *b0 = (TYPE *)_b0;
 319     TYPE *b1 = (TYPE *)_b1;
 320     TYPE *b2 = (TYPE *)_b2;
 321
 322     for(i=0; i<width; i++){
 323         b1[i] = COMPOSE_DAUB97iL0(b0[i], b1[i], b2[i]);
 324     }
 325 }
 326
 327 static void RENAME(vertical_compose_daub97iL1)(uint8_t *_b0, uint8_t *_b1, uint8_t *_b2, int width)
 328 {
 329     int i;
 330     TYPE *b0 = (TYPE *)_b0;
 331     TYPE *b1 = (TYPE *)_b1;
 332     TYPE *b2 = (TYPE *)_b2;
 333
 334     for(i=0; i<width; i++){
 335         b1[i] = COMPOSE_DAUB97iL1(b0[i], b1[i], b2[i]);
 336     }
 337 }
 338
 339 static void RENAME(spatial_compose_dd97i_dy)(DWTContext *d, int level, int width, int height, int stride)
 340 {
 341     vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
 342     vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
 343     DWTCompose *cs = d->cs + level;
 344
 345     int i, y = cs->y;
 346     uint8_t *b[8];
 347     for (i = 0; i < 6; i++)
 348         b[i] = cs->b[i];
 349     b[6] = d->buffer + av_clip(y+5, 0, height-2)*stride;
 350     b[7] = d->buffer + av_clip(y+6, 1, height-1)*stride;
 351
 352     if(y+5<(unsigned)height) vertical_compose_l0(      b[5], b[6], b[7],       width);
 353     if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
 354
 355     if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
 356     if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
 357
 358     for (i = 0; i < 6; i++)
 359         cs->b[i] = b[i+2];
 360     cs->y += 2;
 361 }
 362
 363 static void RENAME(spatial_compose_dirac53i_dy)(DWTContext *d, int level, int width, int height, int stride)
 364 {
 365     vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
 366     vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
 367     DWTCompose *cs = d->cs + level;
 368
 369     int y= cs->y;
 370     uint8_t *b[4] = { cs->b[0], cs->b[1] };
 371     b[2] = d->buffer + avpriv_mirror(y+1, height-1)*stride;
 372     b[3] = d->buffer + avpriv_mirror(y+2, height-1)*stride;
 373
 374     if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
 375     if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
 376
 377     if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
 378     if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
 379
 380     cs->b[0] = b[2];
 381     cs->b[1] = b[3];
 382     cs->y += 2;
 383 }
 384
 385 static void RENAME(spatial_compose_dd137i_dy)(DWTContext *d, int level, int width, int height, int stride)
 386 {
 387     vertical_compose_5tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
 388     vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
 389     DWTCompose *cs = d->cs + level;
 390
 391     int i, y = cs->y;
 392     uint8_t *b[10];
 393     for (i = 0; i < 8; i++)
 394         b[i] = cs->b[i];
 395     b[8] = d->buffer + av_clip(y+7, 0, height-2)*stride;
 396     b[9] = d->buffer + av_clip(y+8, 1, height-1)*stride;
 397
 398     if(y+5<(unsigned)height) vertical_compose_l0(b[3], b[5], b[6], b[7], b[9], width);
 399     if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
 400
 401     if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
 402     if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
 403
 404     for (i = 0; i < 8; i++)
 405         cs->b[i] = b[i+2];
 406     cs->y += 2;
 407 }
 408
 409 // haar makes the assumption that height is even (always true for dirac)
 410 static void RENAME(spatial_compose_haari_dy)(DWTContext *d, int level, int width, int height, int stride)
 411 {
 412     vertical_compose_2tap vertical_compose = (void*)d->vertical_compose;
 413     int y = d->cs[level].y;
 414     uint8_t *b0 = d->buffer + (y-1)*stride;
 415     uint8_t *b1 = d->buffer + (y  )*stride;
 416
 417     vertical_compose(b0, b1, width);
 418     d->horizontal_compose(b0, d->temp, width);
 419     d->horizontal_compose(b1, d->temp, width);
 420
 421     d->cs[level].y += 2;
 422 }
 423
 424 // Don't do sliced idwt for fidelity; the 9 tap filter makes it a bit annoying
 425 // Fortunately, this filter isn't used in practice.
 426 static void RENAME(spatial_compose_fidelity)(DWTContext *d, int level, int width, int height, int stride)
 427 {
 428     vertical_compose_9tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
 429     vertical_compose_9tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
 430     int i, y;
 431     uint8_t *b[8];
 432
 433     for (y = 1; y < height; y += 2) {
 434         for (i = 0; i < 8; i++)
 435             b[i] = d->buffer + av_clip((y-7 + 2*i), 0, height-2)*stride;
 436         vertical_compose_h0(d->buffer + y*stride, b, width);
 437     }
 438
 439     for (y = 0; y < height; y += 2) {
 440         for (i = 0; i < 8; i++)
 441             b[i] = d->buffer + av_clip((y-7 + 2*i), 1, height-1)*stride;
 442         vertical_compose_l0(d->buffer + y*stride, b, width);
 443     }
 444
 445     for (y = 0; y < height; y++)
 446         d->horizontal_compose(d->buffer + y*stride, d->temp, width);
 447
 448     d->cs[level].y = height+1;
 449 }
 450
 451 static void RENAME(spatial_compose_daub97i_dy)(DWTContext *d, int level, int width, int height, int stride)
 452 {
 453     vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0;
 454     vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0;
 455     vertical_compose_3tap vertical_compose_l1 = (void*)d->vertical_compose_l1;
 456     vertical_compose_3tap vertical_compose_h1 = (void*)d->vertical_compose_h1;
 457     DWTCompose *cs = d->cs + level;
 458
 459     int i, y = cs->y;
 460     uint8_t *b[6];
 461     for (i = 0; i < 4; i++)
 462         b[i] = cs->b[i];
 463     b[4] = d->buffer + avpriv_mirror(y+3, height-1)*stride;
 464     b[5] = d->buffer + avpriv_mirror(y+4, height-1)*stride;
 465
 466     if(y+3<(unsigned)height) vertical_compose_l1(b[3], b[4], b[5], width);
 467     if(y+2<(unsigned)height) vertical_compose_h1(b[2], b[3], b[4], width);
 468     if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
 469     if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
 470
 471     if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
 472     if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
 473
 474     for (i = 0; i < 4; i++)
 475         cs->b[i] = b[i+2];
 476     cs->y += 2;
 477 }
 478
 479 static void RENAME(spatial_compose97i_init)(DWTCompose *cs, uint8_t *buffer, int height, int stride)
 480 {
 481     cs->b[0] = buffer + avpriv_mirror(-3-1, height-1)*stride;
 482     cs->b[1] = buffer + avpriv_mirror(-3  , height-1)*stride;
 483     cs->b[2] = buffer + avpriv_mirror(-3+1, height-1)*stride;
 484     cs->b[3] = buffer + avpriv_mirror(-3+2, height-1)*stride;
 485     cs->y = -3;
 486 }
 487
 488 static void RENAME(spatial_compose53i_init)(DWTCompose *cs, uint8_t *buffer, int height, int stride)
 489 {
 490     cs->b[0] = buffer + avpriv_mirror(-1-1, height-1)*stride;
 491     cs->b[1] = buffer + avpriv_mirror(-1  , height-1)*stride;
 492     cs->y = -1;
 493 }
 494
 495 static void RENAME(spatial_compose_dd97i_init)(DWTCompose *cs, uint8_t *buffer, int height, int stride)
 496 {
 497     cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
 498     cs->b[1] = buffer + av_clip(-5  , 1, height-1)*stride;
 499     cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
 500     cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
 501     cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
 502     cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
 503     cs->y = -5;
 504 }
 505
 506 static void RENAME(spatial_compose_dd137i_init)(DWTCompose *cs, uint8_t *buffer, int height, int stride)
 507 {
 508     cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
 509     cs->b[1] = buffer + av_clip(-5  , 1, height-1)*stride;
 510     cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
 511     cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
 512     cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
 513     cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
 514     cs->b[6] = buffer + av_clip(-5+5, 0, height-2)*stride;
 515     cs->b[7] = buffer + av_clip(-5+6, 1, height-1)*stride;
 516     cs->y = -5;
 517 }
 518
 519 static int RENAME(ff_spatial_idwt_init)(DWTContext *d, enum dwt_type type)
 520 {
 521     int level;
 522
 523     d->temp = (uint8_t *)(((TYPE *)d->temp) + 8);
 524
 525     for (level = d->decomposition_count - 1; level >= 0; level--){
 526         int hl = d->height >> level;
 527         int stride_l = d->stride << level;
 528
 529         switch(type){
 530             case DWT_DIRAC_DD9_7:
 531                 RENAME(spatial_compose_dd97i_init)(d->cs+level, d->buffer, hl, stride_l);
 532                 break;
 533             case DWT_DIRAC_LEGALL5_3:
 534                 RENAME(spatial_compose53i_init)(d->cs+level, d->buffer, hl, stride_l);
 535                 break;
 536             case DWT_DIRAC_DD13_7:
 537                 RENAME(spatial_compose_dd137i_init)(d->cs+level, d->buffer, hl, stride_l);
 538                 break;
 539             case DWT_DIRAC_HAAR0:
 540             case DWT_DIRAC_HAAR1:
 541                 d->cs[level].y = 1;
 542                 break;
 543             case DWT_DIRAC_DAUB9_7:
 544                 RENAME(spatial_compose97i_init)(d->cs+level, d->buffer, hl, stride_l);
 545                 break;
 546             default:
 547                 d->cs[level].y = 0;
 548                 break;
 549         }
 550     }
 551
 552     switch (type) {
 553         case DWT_DIRAC_DD9_7:
 554             d->spatial_compose = RENAME(spatial_compose_dd97i_dy);
 555             d->vertical_compose_l0 = (void*)RENAME(vertical_compose53iL0);
 556             d->vertical_compose_h0 = (void*)RENAME(vertical_compose_dd97iH0);
 557             d->horizontal_compose = RENAME(horizontal_compose_dd97i);
 558             d->support = 7;
 559             break;
 560         case DWT_DIRAC_LEGALL5_3:
 561             d->spatial_compose = RENAME(spatial_compose_dirac53i_dy);
 562             d->vertical_compose_l0 = (void*)RENAME(vertical_compose53iL0);
 563             d->vertical_compose_h0 = (void*)RENAME(vertical_compose_dirac53iH0);
 564             d->horizontal_compose = RENAME(horizontal_compose_dirac53i);
 565             d->support = 3;
 566             break;
 567         case DWT_DIRAC_DD13_7:
 568             d->spatial_compose = RENAME(spatial_compose_dd137i_dy);
 569             d->vertical_compose_l0 = (void*)RENAME(vertical_compose_dd137iL0);
 570             d->vertical_compose_h0 = (void*)RENAME(vertical_compose_dd97iH0);
 571             d->horizontal_compose = RENAME(horizontal_compose_dd137i);
 572             d->support = 7;
 573             break;
 574         case DWT_DIRAC_HAAR0:
 575         case DWT_DIRAC_HAAR1:
 576             d->spatial_compose = RENAME(spatial_compose_haari_dy);
 577             d->vertical_compose = (void*)RENAME(vertical_compose_haar);
 578             if (type == DWT_DIRAC_HAAR0)
 579                 d->horizontal_compose = RENAME(horizontal_compose_haar0i);
 580             else
 581                 d->horizontal_compose = RENAME(horizontal_compose_haar1i);
 582             d->support = 1;
 583             break;
 584         case DWT_DIRAC_FIDELITY:
 585             d->spatial_compose = RENAME(spatial_compose_fidelity);
 586             d->vertical_compose_l0 = (void*)RENAME(vertical_compose_fidelityiL0);
 587             d->vertical_compose_h0 = (void*)RENAME(vertical_compose_fidelityiH0);
 588             d->horizontal_compose = RENAME(horizontal_compose_fidelityi);
 589             d->support = 0; // not really used
 590             break;
 591         case DWT_DIRAC_DAUB9_7:
 592             d->spatial_compose = RENAME(spatial_compose_daub97i_dy);
 593             d->vertical_compose_l0 = (void*)RENAME(vertical_compose_daub97iL0);
 594             d->vertical_compose_h0 = (void*)RENAME(vertical_compose_daub97iH0);
 595             d->vertical_compose_l1 = (void*)RENAME(vertical_compose_daub97iL1);
 596             d->vertical_compose_h1 = (void*)RENAME(vertical_compose_daub97iH1);
 597             d->horizontal_compose = RENAME(horizontal_compose_daub97i);
 598             d->support = 5;
 599             break;
 600         default:
 601             return AVERROR_INVALIDDATA;
 602     }
 603
 604     return 0;
 605 }
 606
 607 #undef RENAME
 608 #undef TYPE