| 1 | /* |
| 2 | * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at> |
| 3 | * Copyright (C) 2008 David Conrad |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #include "libavutil/attributes.h" |
| 23 | #include "libavutil/avassert.h" |
| 24 | #include "libavutil/common.h" |
| 25 | #include "dirac_dwt.h" |
| 26 | #include "libavcodec/x86/dirac_dwt.h" |
| 27 | |
| 28 | |
| 29 | static inline int mirror(int v, int m) |
| 30 | { |
| 31 | while ((unsigned)v > (unsigned)m) { |
| 32 | v = -v; |
| 33 | if (v < 0) |
| 34 | v += 2 * m; |
| 35 | } |
| 36 | return v; |
| 37 | } |
| 38 | |
| 39 | static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, |
| 40 | int width) |
| 41 | { |
| 42 | int i; |
| 43 | |
| 44 | for (i = 0; i < width; i++) |
| 45 | b1[i] -= (b0[i] + b2[i] + 2) >> 2; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | static av_always_inline |
| 50 | void interleave(IDWTELEM *dst, IDWTELEM *src0, IDWTELEM *src1, int w2, int add, int shift) |
| 51 | { |
| 52 | int i; |
| 53 | for (i = 0; i < w2; i++) { |
| 54 | dst[2*i ] = (src0[i] + add) >> shift; |
| 55 | dst[2*i+1] = (src1[i] + add) >> shift; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | static void horizontal_compose_dirac53i(IDWTELEM *b, IDWTELEM *temp, int w) |
| 60 | { |
| 61 | const int w2 = w >> 1; |
| 62 | int x; |
| 63 | |
| 64 | temp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]); |
| 65 | for (x = 1; x < w2; x++) { |
| 66 | temp[x ] = COMPOSE_53iL0 (b[x+w2-1], b[x ], b[x+w2]); |
| 67 | temp[x+w2-1] = COMPOSE_DIRAC53iH0(temp[x-1], b[x+w2-1], temp[x]); |
| 68 | } |
| 69 | temp[w-1] = COMPOSE_DIRAC53iH0(temp[w2-1], b[w-1], temp[w2-1]); |
| 70 | |
| 71 | interleave(b, temp, temp+w2, w2, 1, 1); |
| 72 | } |
| 73 | |
| 74 | static void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int w) |
| 75 | { |
| 76 | const int w2 = w >> 1; |
| 77 | int x; |
| 78 | |
| 79 | tmp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]); |
| 80 | for (x = 1; x < w2; x++) |
| 81 | tmp[x] = COMPOSE_53iL0(b[x+w2-1], b[x], b[x+w2]); |
| 82 | |
| 83 | // extend the edges |
| 84 | tmp[-1] = tmp[0]; |
| 85 | tmp[w2+1] = tmp[w2] = tmp[w2-1]; |
| 86 | |
| 87 | for (x = 0; x < w2; x++) { |
| 88 | b[2*x ] = (tmp[x] + 1)>>1; |
| 89 | b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | static void horizontal_compose_dd137i(IDWTELEM *b, IDWTELEM *tmp, int w) |
| 94 | { |
| 95 | const int w2 = w >> 1; |
| 96 | int x; |
| 97 | |
| 98 | tmp[0] = COMPOSE_DD137iL0(b[w2], b[w2], b[0], b[w2 ], b[w2+1]); |
| 99 | tmp[1] = COMPOSE_DD137iL0(b[w2], b[w2], b[1], b[w2+1], b[w2+2]); |
| 100 | for (x = 2; x < w2-1; x++) |
| 101 | tmp[x] = COMPOSE_DD137iL0(b[x+w2-2], b[x+w2-1], b[x], b[x+w2], b[x+w2+1]); |
| 102 | tmp[w2-1] = COMPOSE_DD137iL0(b[w-3], b[w-2], b[w2-1], b[w-1], b[w-1]); |
| 103 | |
| 104 | // extend the edges |
| 105 | tmp[-1] = tmp[0]; |
| 106 | tmp[w2+1] = tmp[w2] = tmp[w2-1]; |
| 107 | |
| 108 | for (x = 0; x < w2; x++) { |
| 109 | b[2*x ] = (tmp[x] + 1)>>1; |
| 110 | b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | static av_always_inline |
| 115 | void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *temp, int w, int shift) |
| 116 | { |
| 117 | const int w2 = w >> 1; |
| 118 | int x; |
| 119 | |
| 120 | for (x = 0; x < w2; x++) { |
| 121 | temp[x ] = COMPOSE_HAARiL0(b[x ], b[x+w2]); |
| 122 | temp[x+w2] = COMPOSE_HAARiH0(b[x+w2], temp[x]); |
| 123 | } |
| 124 | |
| 125 | interleave(b, temp, temp+w2, w2, shift, shift); |
| 126 | } |
| 127 | |
| 128 | static void horizontal_compose_haar0i(IDWTELEM *b, IDWTELEM *temp, int w) |
| 129 | { |
| 130 | horizontal_compose_haari(b, temp, w, 0); |
| 131 | } |
| 132 | |
| 133 | static void horizontal_compose_haar1i(IDWTELEM *b, IDWTELEM *temp, int w) |
| 134 | { |
| 135 | horizontal_compose_haari(b, temp, w, 1); |
| 136 | } |
| 137 | |
| 138 | static void horizontal_compose_fidelityi(IDWTELEM *b, IDWTELEM *tmp, int w) |
| 139 | { |
| 140 | const int w2 = w >> 1; |
| 141 | int i, x; |
| 142 | IDWTELEM v[8]; |
| 143 | |
| 144 | for (x = 0; x < w2; x++) { |
| 145 | for (i = 0; i < 8; i++) |
| 146 | v[i] = b[av_clip(x-3+i, 0, w2-1)]; |
| 147 | tmp[x] = COMPOSE_FIDELITYiH0(v[0], v[1], v[2], v[3], b[x+w2], v[4], v[5], v[6], v[7]); |
| 148 | } |
| 149 | |
| 150 | for (x = 0; x < w2; x++) { |
| 151 | for (i = 0; i < 8; i++) |
| 152 | v[i] = tmp[av_clip(x-4+i, 0, w2-1)]; |
| 153 | tmp[x+w2] = COMPOSE_FIDELITYiL0(v[0], v[1], v[2], v[3], b[x], v[4], v[5], v[6], v[7]); |
| 154 | } |
| 155 | |
| 156 | interleave(b, tmp+w2, tmp, w2, 0, 0); |
| 157 | } |
| 158 | |
| 159 | static void horizontal_compose_daub97i(IDWTELEM *b, IDWTELEM *temp, int w) |
| 160 | { |
| 161 | const int w2 = w >> 1; |
| 162 | int x, b0, b1, b2; |
| 163 | |
| 164 | temp[0] = COMPOSE_DAUB97iL1(b[w2], b[0], b[w2]); |
| 165 | for (x = 1; x < w2; x++) { |
| 166 | temp[x ] = COMPOSE_DAUB97iL1(b[x+w2-1], b[x ], b[x+w2]); |
| 167 | temp[x+w2-1] = COMPOSE_DAUB97iH1(temp[x-1], b[x+w2-1], temp[x]); |
| 168 | } |
| 169 | temp[w-1] = COMPOSE_DAUB97iH1(temp[w2-1], b[w-1], temp[w2-1]); |
| 170 | |
| 171 | // second stage combined with interleave and shift |
| 172 | b0 = b2 = COMPOSE_DAUB97iL0(temp[w2], temp[0], temp[w2]); |
| 173 | b[0] = (b0 + 1) >> 1; |
| 174 | for (x = 1; x < w2; x++) { |
| 175 | b2 = COMPOSE_DAUB97iL0(temp[x+w2-1], temp[x ], temp[x+w2]); |
| 176 | b1 = COMPOSE_DAUB97iH0( b0, temp[x+w2-1], b2 ); |
| 177 | b[2*x-1] = (b1 + 1) >> 1; |
| 178 | b[2*x ] = (b2 + 1) >> 1; |
| 179 | b0 = b2; |
| 180 | } |
| 181 | b[w-1] = (COMPOSE_DAUB97iH0(b2, temp[w-1], b2) + 1) >> 1; |
| 182 | } |
| 183 | |
| 184 | static void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) |
| 185 | { |
| 186 | int i; |
| 187 | |
| 188 | for(i=0; i<width; i++){ |
| 189 | b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | static void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, |
| 194 | IDWTELEM *b3, IDWTELEM *b4, int width) |
| 195 | { |
| 196 | int i; |
| 197 | |
| 198 | for(i=0; i<width; i++){ |
| 199 | b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | static void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, |
| 204 | IDWTELEM *b3, IDWTELEM *b4, int width) |
| 205 | { |
| 206 | int i; |
| 207 | |
| 208 | for(i=0; i<width; i++){ |
| 209 | b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | static void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width) |
| 214 | { |
| 215 | int i; |
| 216 | |
| 217 | for (i = 0; i < width; i++) { |
| 218 | b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); |
| 219 | b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | static void vertical_compose_fidelityiH0(IDWTELEM *dst, IDWTELEM *b[8], int width) |
| 224 | { |
| 225 | int i; |
| 226 | |
| 227 | for(i=0; i<width; i++){ |
| 228 | dst[i] = COMPOSE_FIDELITYiH0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | static void vertical_compose_fidelityiL0(IDWTELEM *dst, IDWTELEM *b[8], int width) |
| 233 | { |
| 234 | int i; |
| 235 | |
| 236 | for(i=0; i<width; i++){ |
| 237 | dst[i] = COMPOSE_FIDELITYiL0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]); |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | static void vertical_compose_daub97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) |
| 242 | { |
| 243 | int i; |
| 244 | |
| 245 | for(i=0; i<width; i++){ |
| 246 | b1[i] = COMPOSE_DAUB97iH0(b0[i], b1[i], b2[i]); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | static void vertical_compose_daub97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) |
| 251 | { |
| 252 | int i; |
| 253 | |
| 254 | for(i=0; i<width; i++){ |
| 255 | b1[i] = COMPOSE_DAUB97iH1(b0[i], b1[i], b2[i]); |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | static void vertical_compose_daub97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) |
| 260 | { |
| 261 | int i; |
| 262 | |
| 263 | for(i=0; i<width; i++){ |
| 264 | b1[i] = COMPOSE_DAUB97iL0(b0[i], b1[i], b2[i]); |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | static void vertical_compose_daub97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) |
| 269 | { |
| 270 | int i; |
| 271 | |
| 272 | for(i=0; i<width; i++){ |
| 273 | b1[i] = COMPOSE_DAUB97iL1(b0[i], b1[i], b2[i]); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | |
| 278 | static void spatial_compose_dd97i_dy(DWTContext *d, int level, int width, int height, int stride) |
| 279 | { |
| 280 | vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; |
| 281 | vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0; |
| 282 | DWTCompose *cs = d->cs + level; |
| 283 | |
| 284 | int i, y = cs->y; |
| 285 | IDWTELEM *b[8]; |
| 286 | for (i = 0; i < 6; i++) |
| 287 | b[i] = cs->b[i]; |
| 288 | b[6] = d->buffer + av_clip(y+5, 0, height-2)*stride; |
| 289 | b[7] = d->buffer + av_clip(y+6, 1, height-1)*stride; |
| 290 | |
| 291 | if(y+5<(unsigned)height) vertical_compose_l0( b[5], b[6], b[7], width); |
| 292 | if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width); |
| 293 | |
| 294 | if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); |
| 295 | if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); |
| 296 | |
| 297 | for (i = 0; i < 6; i++) |
| 298 | cs->b[i] = b[i+2]; |
| 299 | cs->y += 2; |
| 300 | } |
| 301 | |
| 302 | static void spatial_compose_dirac53i_dy(DWTContext *d, int level, int width, int height, int stride) |
| 303 | { |
| 304 | vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; |
| 305 | vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0; |
| 306 | DWTCompose *cs = d->cs + level; |
| 307 | |
| 308 | int y= cs->y; |
| 309 | IDWTELEM *b[4] = { cs->b[0], cs->b[1] }; |
| 310 | b[2] = d->buffer + mirror(y+1, height-1)*stride; |
| 311 | b[3] = d->buffer + mirror(y+2, height-1)*stride; |
| 312 | |
| 313 | if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width); |
| 314 | if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width); |
| 315 | |
| 316 | if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); |
| 317 | if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); |
| 318 | |
| 319 | cs->b[0] = b[2]; |
| 320 | cs->b[1] = b[3]; |
| 321 | cs->y += 2; |
| 322 | } |
| 323 | |
| 324 | |
| 325 | static void spatial_compose_dd137i_dy(DWTContext *d, int level, int width, int height, int stride) |
| 326 | { |
| 327 | vertical_compose_5tap vertical_compose_l0 = (void*)d->vertical_compose_l0; |
| 328 | vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0; |
| 329 | DWTCompose *cs = d->cs + level; |
| 330 | |
| 331 | int i, y = cs->y; |
| 332 | IDWTELEM *b[10]; |
| 333 | for (i = 0; i < 8; i++) |
| 334 | b[i] = cs->b[i]; |
| 335 | b[8] = d->buffer + av_clip(y+7, 0, height-2)*stride; |
| 336 | b[9] = d->buffer + av_clip(y+8, 1, height-1)*stride; |
| 337 | |
| 338 | if(y+5<(unsigned)height) vertical_compose_l0(b[3], b[5], b[6], b[7], b[9], width); |
| 339 | if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width); |
| 340 | |
| 341 | if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); |
| 342 | if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); |
| 343 | |
| 344 | for (i = 0; i < 8; i++) |
| 345 | cs->b[i] = b[i+2]; |
| 346 | cs->y += 2; |
| 347 | } |
| 348 | |
| 349 | // haar makes the assumption that height is even (always true for dirac) |
| 350 | static void spatial_compose_haari_dy(DWTContext *d, int level, int width, int height, int stride) |
| 351 | { |
| 352 | vertical_compose_2tap vertical_compose = (void*)d->vertical_compose; |
| 353 | int y = d->cs[level].y; |
| 354 | IDWTELEM *b0 = d->buffer + (y-1)*stride; |
| 355 | IDWTELEM *b1 = d->buffer + (y )*stride; |
| 356 | |
| 357 | vertical_compose(b0, b1, width); |
| 358 | d->horizontal_compose(b0, d->temp, width); |
| 359 | d->horizontal_compose(b1, d->temp, width); |
| 360 | |
| 361 | d->cs[level].y += 2; |
| 362 | } |
| 363 | |
| 364 | // Don't do sliced idwt for fidelity; the 9 tap filter makes it a bit annoying |
| 365 | // Fortunately, this filter isn't used in practice. |
| 366 | static void spatial_compose_fidelity(DWTContext *d, int level, int width, int height, int stride) |
| 367 | { |
| 368 | vertical_compose_9tap vertical_compose_l0 = (void*)d->vertical_compose_l0; |
| 369 | vertical_compose_9tap vertical_compose_h0 = (void*)d->vertical_compose_h0; |
| 370 | int i, y; |
| 371 | IDWTELEM *b[8]; |
| 372 | |
| 373 | for (y = 1; y < height; y += 2) { |
| 374 | for (i = 0; i < 8; i++) |
| 375 | b[i] = d->buffer + av_clip((y-7 + 2*i), 0, height-2)*stride; |
| 376 | vertical_compose_h0(d->buffer + y*stride, b, width); |
| 377 | } |
| 378 | |
| 379 | for (y = 0; y < height; y += 2) { |
| 380 | for (i = 0; i < 8; i++) |
| 381 | b[i] = d->buffer + av_clip((y-7 + 2*i), 1, height-1)*stride; |
| 382 | vertical_compose_l0(d->buffer + y*stride, b, width); |
| 383 | } |
| 384 | |
| 385 | for (y = 0; y < height; y++) |
| 386 | d->horizontal_compose(d->buffer + y*stride, d->temp, width); |
| 387 | |
| 388 | d->cs[level].y = height+1; |
| 389 | } |
| 390 | |
| 391 | static void spatial_compose_daub97i_dy(DWTContext *d, int level, int width, int height, int stride) |
| 392 | { |
| 393 | vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; |
| 394 | vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0; |
| 395 | vertical_compose_3tap vertical_compose_l1 = (void*)d->vertical_compose_l1; |
| 396 | vertical_compose_3tap vertical_compose_h1 = (void*)d->vertical_compose_h1; |
| 397 | DWTCompose *cs = d->cs + level; |
| 398 | |
| 399 | int i, y = cs->y; |
| 400 | IDWTELEM *b[6]; |
| 401 | for (i = 0; i < 4; i++) |
| 402 | b[i] = cs->b[i]; |
| 403 | b[4] = d->buffer + mirror(y+3, height-1)*stride; |
| 404 | b[5] = d->buffer + mirror(y+4, height-1)*stride; |
| 405 | |
| 406 | if(y+3<(unsigned)height) vertical_compose_l1(b[3], b[4], b[5], width); |
| 407 | if(y+2<(unsigned)height) vertical_compose_h1(b[2], b[3], b[4], width); |
| 408 | if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width); |
| 409 | if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width); |
| 410 | |
| 411 | if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); |
| 412 | if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); |
| 413 | |
| 414 | for (i = 0; i < 4; i++) |
| 415 | cs->b[i] = b[i+2]; |
| 416 | cs->y += 2; |
| 417 | } |
| 418 | |
| 419 | |
| 420 | static void spatial_compose97i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) |
| 421 | { |
| 422 | cs->b[0] = buffer + mirror(-3-1, height-1)*stride; |
| 423 | cs->b[1] = buffer + mirror(-3 , height-1)*stride; |
| 424 | cs->b[2] = buffer + mirror(-3+1, height-1)*stride; |
| 425 | cs->b[3] = buffer + mirror(-3+2, height-1)*stride; |
| 426 | cs->y = -3; |
| 427 | } |
| 428 | |
| 429 | static void spatial_compose53i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) |
| 430 | { |
| 431 | cs->b[0] = buffer + mirror(-1-1, height-1)*stride; |
| 432 | cs->b[1] = buffer + mirror(-1 , height-1)*stride; |
| 433 | cs->y = -1; |
| 434 | } |
| 435 | |
| 436 | static void spatial_compose_dd97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) |
| 437 | { |
| 438 | cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride; |
| 439 | cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride; |
| 440 | cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride; |
| 441 | cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride; |
| 442 | cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride; |
| 443 | cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride; |
| 444 | cs->y = -5; |
| 445 | } |
| 446 | |
| 447 | static void spatial_compose_dd137i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) |
| 448 | { |
| 449 | cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride; |
| 450 | cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride; |
| 451 | cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride; |
| 452 | cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride; |
| 453 | cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride; |
| 454 | cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride; |
| 455 | cs->b[6] = buffer + av_clip(-5+5, 0, height-2)*stride; |
| 456 | cs->b[7] = buffer + av_clip(-5+6, 1, height-1)*stride; |
| 457 | cs->y = -5; |
| 458 | } |
| 459 | |
| 460 | int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height, |
| 461 | int stride, enum dwt_type type, int decomposition_count, |
| 462 | IDWTELEM *temp) |
| 463 | { |
| 464 | int level; |
| 465 | |
| 466 | d->buffer = buffer; |
| 467 | d->width = width; |
| 468 | d->height = height; |
| 469 | d->stride = stride; |
| 470 | d->decomposition_count = decomposition_count; |
| 471 | d->temp = temp + 8; |
| 472 | |
| 473 | for(level=decomposition_count-1; level>=0; level--){ |
| 474 | int hl = height >> level; |
| 475 | int stride_l = stride << level; |
| 476 | |
| 477 | switch(type){ |
| 478 | case DWT_DIRAC_DD9_7: |
| 479 | spatial_compose_dd97i_init(d->cs+level, buffer, hl, stride_l); |
| 480 | break; |
| 481 | case DWT_DIRAC_LEGALL5_3: |
| 482 | spatial_compose53i_init2(d->cs+level, buffer, hl, stride_l); |
| 483 | break; |
| 484 | case DWT_DIRAC_DD13_7: |
| 485 | spatial_compose_dd137i_init(d->cs+level, buffer, hl, stride_l); |
| 486 | break; |
| 487 | case DWT_DIRAC_HAAR0: |
| 488 | case DWT_DIRAC_HAAR1: |
| 489 | d->cs[level].y = 1; |
| 490 | break; |
| 491 | case DWT_DIRAC_DAUB9_7: |
| 492 | spatial_compose97i_init2(d->cs+level, buffer, hl, stride_l); |
| 493 | break; |
| 494 | default: |
| 495 | d->cs[level].y = 0; |
| 496 | break; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | switch (type) { |
| 501 | case DWT_DIRAC_DD9_7: |
| 502 | d->spatial_compose = spatial_compose_dd97i_dy; |
| 503 | d->vertical_compose_l0 = (void*)vertical_compose53iL0; |
| 504 | d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0; |
| 505 | d->horizontal_compose = horizontal_compose_dd97i; |
| 506 | d->support = 7; |
| 507 | break; |
| 508 | case DWT_DIRAC_LEGALL5_3: |
| 509 | d->spatial_compose = spatial_compose_dirac53i_dy; |
| 510 | d->vertical_compose_l0 = (void*)vertical_compose53iL0; |
| 511 | d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0; |
| 512 | d->horizontal_compose = horizontal_compose_dirac53i; |
| 513 | d->support = 3; |
| 514 | break; |
| 515 | case DWT_DIRAC_DD13_7: |
| 516 | d->spatial_compose = spatial_compose_dd137i_dy; |
| 517 | d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0; |
| 518 | d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0; |
| 519 | d->horizontal_compose = horizontal_compose_dd137i; |
| 520 | d->support = 7; |
| 521 | break; |
| 522 | case DWT_DIRAC_HAAR0: |
| 523 | case DWT_DIRAC_HAAR1: |
| 524 | d->spatial_compose = spatial_compose_haari_dy; |
| 525 | d->vertical_compose = (void*)vertical_compose_haar; |
| 526 | if (type == DWT_DIRAC_HAAR0) |
| 527 | d->horizontal_compose = horizontal_compose_haar0i; |
| 528 | else |
| 529 | d->horizontal_compose = horizontal_compose_haar1i; |
| 530 | d->support = 1; |
| 531 | break; |
| 532 | case DWT_DIRAC_FIDELITY: |
| 533 | d->spatial_compose = spatial_compose_fidelity; |
| 534 | d->vertical_compose_l0 = (void*)vertical_compose_fidelityiL0; |
| 535 | d->vertical_compose_h0 = (void*)vertical_compose_fidelityiH0; |
| 536 | d->horizontal_compose = horizontal_compose_fidelityi; |
| 537 | d->support = 0; // not really used |
| 538 | break; |
| 539 | case DWT_DIRAC_DAUB9_7: |
| 540 | d->spatial_compose = spatial_compose_daub97i_dy; |
| 541 | d->vertical_compose_l0 = (void*)vertical_compose_daub97iL0; |
| 542 | d->vertical_compose_h0 = (void*)vertical_compose_daub97iH0; |
| 543 | d->vertical_compose_l1 = (void*)vertical_compose_daub97iL1; |
| 544 | d->vertical_compose_h1 = (void*)vertical_compose_daub97iH1; |
| 545 | d->horizontal_compose = horizontal_compose_daub97i; |
| 546 | d->support = 5; |
| 547 | break; |
| 548 | default: |
| 549 | av_log(NULL, AV_LOG_ERROR, "Unknown wavelet type %d\n", type); |
| 550 | return -1; |
| 551 | } |
| 552 | |
| 553 | if (HAVE_MMX) ff_spatial_idwt_init_mmx(d, type); |
| 554 | |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | void ff_spatial_idwt_slice2(DWTContext *d, int y) |
| 559 | { |
| 560 | int level, support = d->support; |
| 561 | |
| 562 | for (level = d->decomposition_count-1; level >= 0; level--) { |
| 563 | int wl = d->width >> level; |
| 564 | int hl = d->height >> level; |
| 565 | int stride_l = d->stride << level; |
| 566 | |
| 567 | while (d->cs[level].y <= FFMIN((y>>level)+support, hl)) |
| 568 | d->spatial_compose(d, level, wl, hl, stride_l); |
| 569 | } |
| 570 | } |
| 571 | |