git.sesse.net Git - ffmpeg/blob - libavcodec/vp8dsp.c

   1 /*
   2  * Copyright (C) 2010 David Conrad
   3  * Copyright (C) 2010 Ronald S. Bultje
   4  * Copyright (C) 2014 Peter Ross
   5  *
   6  * This file is part of Libav.
   7  *
   8  * Libav is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * Libav is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with Libav; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 /**
  24  * @file
  25  * VP8 compatible video decoder
  26  */
  27
  28 #include "libavutil/common.h"
  29
  30 #include "mathops.h"
  31 #include "vp8dsp.h"
  32
  33 #define MK_IDCT_DC_ADD4_C(name)                                               \
  34 static void name ## _idct_dc_add4uv_c(uint8_t *dst, int16_t block[4][16],     \
  35                                       ptrdiff_t stride)                       \
  36 {                                                                             \
  37     name ## _idct_dc_add_c(dst + stride * 0 + 0, block[0], stride);           \
  38     name ## _idct_dc_add_c(dst + stride * 0 + 4, block[1], stride);           \
  39     name ## _idct_dc_add_c(dst + stride * 4 + 0, block[2], stride);           \
  40     name ## _idct_dc_add_c(dst + stride * 4 + 4, block[3], stride);           \
  41 }                                                                             \
  42                                                                               \
  43 static void name ## _idct_dc_add4y_c(uint8_t *dst, int16_t block[4][16],      \
  44                                      ptrdiff_t stride)                        \
  45 {                                                                             \
  46     name ## _idct_dc_add_c(dst +  0, block[0], stride);                       \
  47     name ## _idct_dc_add_c(dst +  4, block[1], stride);                       \
  48     name ## _idct_dc_add_c(dst +  8, block[2], stride);                       \
  49     name ## _idct_dc_add_c(dst + 12, block[3], stride);                       \
  50 }
  51
  52 #if CONFIG_VP7_DECODER
  53 static void vp7_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
  54 {
  55     int i, a1, b1, c1, d1;
  56     int16_t tmp[16];
  57
  58     for (i = 0; i < 4; i++) {
  59         a1 = (dc[i * 4 + 0] + dc[i * 4 + 2]) * 23170;
  60         b1 = (dc[i * 4 + 0] - dc[i * 4 + 2]) * 23170;
  61         c1 = dc[i * 4 + 1] * 12540 - dc[i * 4 + 3] * 30274;
  62         d1 = dc[i * 4 + 1] * 30274 + dc[i * 4 + 3] * 12540;
  63         tmp[i * 4 + 0] = (a1 + d1) >> 14;
  64         tmp[i * 4 + 3] = (a1 - d1) >> 14;
  65         tmp[i * 4 + 1] = (b1 + c1) >> 14;
  66         tmp[i * 4 + 2] = (b1 - c1) >> 14;
  67     }
  68
  69     for (i = 0; i < 4; i++) {
  70         a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
  71         b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
  72         c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
  73         d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
  74         dc[i * 4 + 0] = 0;
  75         dc[i * 4 + 1] = 0;
  76         dc[i * 4 + 2] = 0;
  77         dc[i * 4 + 3] = 0;
  78         block[0][i][0] = (a1 + d1 + 0x20000) >> 18;
  79         block[3][i][0] = (a1 - d1 + 0x20000) >> 18;
  80         block[1][i][0] = (b1 + c1 + 0x20000) >> 18;
  81         block[2][i][0] = (b1 - c1 + 0x20000) >> 18;
  82     }
  83 }
  84
  85 static void vp7_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
  86 {
  87     int i, val = (23170 * (23170 * dc[0] >> 14) + 0x20000) >> 18;
  88     dc[0] = 0;
  89
  90     for (i = 0; i < 4; i++) {
  91         block[i][0][0] = val;
  92         block[i][1][0] = val;
  93         block[i][2][0] = val;
  94         block[i][3][0] = val;
  95     }
  96 }
  97
  98 static void vp7_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
  99 {
 100     int i, a1, b1, c1, d1;
 101     int16_t tmp[16];
 102
 103     for (i = 0; i < 4; i++) {
 104         a1 = (block[i * 4 + 0] + block[i * 4 + 2]) * 23170;
 105         b1 = (block[i * 4 + 0] - block[i * 4 + 2]) * 23170;
 106         c1 = block[i * 4 + 1] * 12540 - block[i * 4 + 3] * 30274;
 107         d1 = block[i * 4 + 1] * 30274 + block[i * 4 + 3] * 12540;
 108         block[i * 4 + 0] = 0;
 109         block[i * 4 + 1] = 0;
 110         block[i * 4 + 2] = 0;
 111         block[i * 4 + 3] = 0;
 112         tmp[i * 4 + 0] = (a1 + d1) >> 14;
 113         tmp[i * 4 + 3] = (a1 - d1) >> 14;
 114         tmp[i * 4 + 1] = (b1 + c1) >> 14;
 115         tmp[i * 4 + 2] = (b1 - c1) >> 14;
 116     }
 117
 118     for (i = 0; i < 4; i++) {
 119         a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
 120         b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
 121         c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
 122         d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
 123         dst[0 * stride + i] = av_clip_uint8(dst[0 * stride + i] +
 124                                             ((a1 + d1 + 0x20000) >> 18));
 125         dst[3 * stride + i] = av_clip_uint8(dst[3 * stride + i] +
 126                                             ((a1 - d1 + 0x20000) >> 18));
 127         dst[1 * stride + i] = av_clip_uint8(dst[1 * stride + i] +
 128                                             ((b1 + c1 + 0x20000) >> 18));
 129         dst[2 * stride + i] = av_clip_uint8(dst[2 * stride + i] +
 130                                             ((b1 - c1 + 0x20000) >> 18));
 131     }
 132 }
 133
 134 static void vp7_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
 135 {
 136     int i, dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18;
 137     block[0] = 0;
 138
 139     for (i = 0; i < 4; i++) {
 140         dst[0] = av_clip_uint8(dst[0] + dc);
 141         dst[1] = av_clip_uint8(dst[1] + dc);
 142         dst[2] = av_clip_uint8(dst[2] + dc);
 143         dst[3] = av_clip_uint8(dst[3] + dc);
 144         dst   += stride;
 145     }
 146 }
 147
 148 MK_IDCT_DC_ADD4_C(vp7)
 149 #endif /* CONFIG_VP7_DECODER */
 150
 151 // TODO: Maybe add dequant
 152 #if CONFIG_VP8_DECODER
 153 static void vp8_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
 154 {
 155     int i, t0, t1, t2, t3;
 156
 157     for (i = 0; i < 4; i++) {
 158         t0 = dc[0 * 4 + i] + dc[3 * 4 + i];
 159         t1 = dc[1 * 4 + i] + dc[2 * 4 + i];
 160         t2 = dc[1 * 4 + i] - dc[2 * 4 + i];
 161         t3 = dc[0 * 4 + i] - dc[3 * 4 + i];
 162
 163         dc[0 * 4 + i] = t0 + t1;
 164         dc[1 * 4 + i] = t3 + t2;
 165         dc[2 * 4 + i] = t0 - t1;
 166         dc[3 * 4 + i] = t3 - t2;
 167     }
 168
 169     for (i = 0; i < 4; i++) {
 170         t0 = dc[i * 4 + 0] + dc[i * 4 + 3] + 3; // rounding
 171         t1 = dc[i * 4 + 1] + dc[i * 4 + 2];
 172         t2 = dc[i * 4 + 1] - dc[i * 4 + 2];
 173         t3 = dc[i * 4 + 0] - dc[i * 4 + 3] + 3; // rounding
 174         dc[i * 4 + 0] = 0;
 175         dc[i * 4 + 1] = 0;
 176         dc[i * 4 + 2] = 0;
 177         dc[i * 4 + 3] = 0;
 178
 179         block[i][0][0] = (t0 + t1) >> 3;
 180         block[i][1][0] = (t3 + t2) >> 3;
 181         block[i][2][0] = (t0 - t1) >> 3;
 182         block[i][3][0] = (t3 - t2) >> 3;
 183     }
 184 }
 185
 186 static void vp8_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
 187 {
 188     int i, val = (dc[0] + 3) >> 3;
 189     dc[0] = 0;
 190
 191     for (i = 0; i < 4; i++) {
 192         block[i][0][0] = val;
 193         block[i][1][0] = val;
 194         block[i][2][0] = val;
 195         block[i][3][0] = val;
 196     }
 197 }
 198
 199 #define MUL_20091(a) ((((a) * 20091) >> 16) + (a))
 200 #define MUL_35468(a)  (((a) * 35468) >> 16)
 201
 202 static void vp8_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
 203 {
 204     int i, t0, t1, t2, t3;
 205     int16_t tmp[16];
 206
 207     for (i = 0; i < 4; i++) {
 208         t0 = block[0 * 4 + i] + block[2 * 4 + i];
 209         t1 = block[0 * 4 + i] - block[2 * 4 + i];
 210         t2 = MUL_35468(block[1 * 4 + i]) - MUL_20091(block[3 * 4 + i]);
 211         t3 = MUL_20091(block[1 * 4 + i]) + MUL_35468(block[3 * 4 + i]);
 212         block[0 * 4 + i] = 0;
 213         block[1 * 4 + i] = 0;
 214         block[2 * 4 + i] = 0;
 215         block[3 * 4 + i] = 0;
 216
 217         tmp[i * 4 + 0] = t0 + t3;
 218         tmp[i * 4 + 1] = t1 + t2;
 219         tmp[i * 4 + 2] = t1 - t2;
 220         tmp[i * 4 + 3] = t0 - t3;
 221     }
 222
 223     for (i = 0; i < 4; i++) {
 224         t0 = tmp[0 * 4 + i] + tmp[2 * 4 + i];
 225         t1 = tmp[0 * 4 + i] - tmp[2 * 4 + i];
 226         t2 = MUL_35468(tmp[1 * 4 + i]) - MUL_20091(tmp[3 * 4 + i]);
 227         t3 = MUL_20091(tmp[1 * 4 + i]) + MUL_35468(tmp[3 * 4 + i]);
 228
 229         dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
 230         dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
 231         dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
 232         dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
 233         dst   += stride;
 234     }
 235 }
 236
 237 static void vp8_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
 238 {
 239     int i, dc = (block[0] + 4) >> 3;
 240     block[0] = 0;
 241
 242     for (i = 0; i < 4; i++) {
 243         dst[0] = av_clip_uint8(dst[0] + dc);
 244         dst[1] = av_clip_uint8(dst[1] + dc);
 245         dst[2] = av_clip_uint8(dst[2] + dc);
 246         dst[3] = av_clip_uint8(dst[3] + dc);
 247         dst   += stride;
 248     }
 249 }
 250
 251 MK_IDCT_DC_ADD4_C(vp8)
 252 #endif /* CONFIG_VP8_DECODER */
 253
 254 // because I like only having two parameters to pass functions...
 255 #define LOAD_PIXELS                                                           \
 256     int av_unused p3 = p[-4 * stride];                                        \
 257     int av_unused p2 = p[-3 * stride];                                        \
 258     int av_unused p1 = p[-2 * stride];                                        \
 259     int av_unused p0 = p[-1 * stride];                                        \
 260     int av_unused q0 = p[ 0 * stride];                                        \
 261     int av_unused q1 = p[ 1 * stride];                                        \
 262     int av_unused q2 = p[ 2 * stride];                                        \
 263     int av_unused q3 = p[ 3 * stride];
 264
 265 #define clip_int8(n) (cm[n + 0x80] - 0x80)
 266
 267 static av_always_inline void filter_common(uint8_t *p, ptrdiff_t stride,
 268                                            int is4tap, int is_vp7)
 269 {
 270     LOAD_PIXELS
 271     int a, f1, f2;
 272     const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
 273
 274     a = 3 * (q0 - p0);
 275
 276     if (is4tap)
 277         a += clip_int8(p1 - q1);
 278
 279     a = clip_int8(a);
 280
 281     // We deviate from the spec here with c(a+3) >> 3
 282     // since that's what libvpx does.
 283     f1 = FFMIN(a + 4, 127) >> 3;
 284
 285     if (is_vp7)
 286         f2 = f1 - ((a & 7) == 4);
 287     else
 288         f2 = FFMIN(a + 3, 127) >> 3;
 289
 290     // Despite what the spec says, we do need to clamp here to
 291     // be bitexact with libvpx.
 292     p[-1 * stride] = cm[p0 + f2];
 293     p[ 0 * stride] = cm[q0 - f1];
 294
 295     // only used for _inner on blocks without high edge variance
 296     if (!is4tap) {
 297         a              = (f1 + 1) >> 1;
 298         p[-2 * stride] = cm[p1 + a];
 299         p[ 1 * stride] = cm[q1 - a];
 300     }
 301 }
 302
 303 static av_always_inline void vp7_filter_common(uint8_t *p, ptrdiff_t stride,
 304                                                int is4tap)
 305 {
 306     filter_common(p, stride, is4tap, IS_VP7);
 307 }
 308
 309 static av_always_inline void vp8_filter_common(uint8_t *p, ptrdiff_t stride,
 310                                                int is4tap)
 311 {
 312     filter_common(p, stride, is4tap, IS_VP8);
 313 }
 314
 315 static av_always_inline int vp7_simple_limit(uint8_t *p, ptrdiff_t stride,
 316                                              int flim)
 317 {
 318     LOAD_PIXELS
 319     return FFABS(p0 - q0) <= flim;
 320 }
 321
 322 static av_always_inline int vp8_simple_limit(uint8_t *p, ptrdiff_t stride,
 323                                              int flim)
 324 {
 325     LOAD_PIXELS
 326     return 2 * FFABS(p0 - q0) + (FFABS(p1 - q1) >> 1) <= flim;
 327 }
 328
 329 /**
 330  * E - limit at the macroblock edge
 331  * I - limit for interior difference
 332  */
 333 #define NORMAL_LIMIT(vpn)                                                     \
 334 static av_always_inline int vp ## vpn ## _normal_limit(uint8_t *p,            \
 335                                                        ptrdiff_t stride,      \
 336                                                        int E, int I)          \
 337 {                                                                             \
 338     LOAD_PIXELS                                                               \
 339     return vp ## vpn ## _simple_limit(p, stride, E) &&                        \
 340            FFABS(p3 - p2) <= I && FFABS(p2 - p1) <= I &&                      \
 341            FFABS(p1 - p0) <= I && FFABS(q3 - q2) <= I &&                      \
 342            FFABS(q2 - q1) <= I && FFABS(q1 - q0) <= I;                        \
 343 }
 344
 345 NORMAL_LIMIT(7)
 346 NORMAL_LIMIT(8)
 347
 348 // high edge variance
 349 static av_always_inline int hev(uint8_t *p, ptrdiff_t stride, int thresh)
 350 {
 351     LOAD_PIXELS
 352     return FFABS(p1 - p0) > thresh || FFABS(q1 - q0) > thresh;
 353 }
 354
 355 static av_always_inline void filter_mbedge(uint8_t *p, ptrdiff_t stride)
 356 {
 357     int a0, a1, a2, w;
 358     const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
 359
 360     LOAD_PIXELS
 361
 362     w = clip_int8(p1 - q1);
 363     w = clip_int8(w + 3 * (q0 - p0));
 364
 365     a0 = (27 * w + 63) >> 7;
 366     a1 = (18 * w + 63) >> 7;
 367     a2 =  (9 * w + 63) >> 7;
 368
 369     p[-3 * stride] = cm[p2 + a2];
 370     p[-2 * stride] = cm[p1 + a1];
 371     p[-1 * stride] = cm[p0 + a0];
 372     p[ 0 * stride] = cm[q0 - a0];
 373     p[ 1 * stride] = cm[q1 - a1];
 374     p[ 2 * stride] = cm[q2 - a2];
 375 }
 376
 377 #define LOOP_FILTER(vpn, dir, size, stridea, strideb, maybe_inline)           \
 378 static maybe_inline                                                           \
 379 void vpn ## _ ## dir ## _loop_filter ## size ## _c(uint8_t *dst,              \
 380                                                    ptrdiff_t stride,          \
 381                                                    int flim_E, int flim_I,    \
 382                                                    int hev_thresh)            \
 383 {                                                                             \
 384     int i;                                                                    \
 385     for (i = 0; i < size; i++)                                                \
 386         if (vpn ## _normal_limit(dst + i * stridea, strideb,                  \
 387                                  flim_E, flim_I)) {                           \
 388             if (hev(dst + i * stridea, strideb, hev_thresh))                  \
 389                 vpn ## _filter_common(dst + i * stridea, strideb, 1);         \
 390             else                                                              \
 391                 filter_mbedge(dst + i * stridea, strideb);                    \
 392         }                                                                     \
 393 }                                                                             \
 394                                                                               \
 395 static maybe_inline                                                           \
 396 void vpn ## _ ## dir ## _loop_filter ## size ## _inner_c(uint8_t *dst,        \
 397                                                          ptrdiff_t stride,    \
 398                                                          int flim_E,          \
 399                                                          int flim_I,          \
 400                                                          int hev_thresh)      \
 401 {                                                                             \
 402     int i;                                                                    \
 403     for (i = 0; i < size; i++)                                                \
 404         if (vpn ## _normal_limit(dst + i * stridea, strideb,                  \
 405                                  flim_E, flim_I)) {                           \
 406             int hv = hev(dst + i * stridea, strideb, hev_thresh);             \
 407             if (hv)                                                           \
 408                 vpn ## _filter_common(dst + i * stridea, strideb, 1);         \
 409             else                                                              \
 410                 vpn ## _filter_common(dst + i * stridea, strideb, 0);         \
 411         }                                                                     \
 412 }
 413
 414 #define UV_LOOP_FILTER(vpn, dir, stridea, strideb)                            \
 415 LOOP_FILTER(vpn, dir, 8, stridea, strideb, av_always_inline)                  \
 416 static void vpn ## _ ## dir ## _loop_filter8uv_c(uint8_t *dstU,               \
 417                                                  uint8_t *dstV,               \
 418                                                  ptrdiff_t stride, int fE,    \
 419                                                  int fI, int hev_thresh)      \
 420 {                                                                             \
 421     vpn ## _ ## dir ## _loop_filter8_c(dstU, stride, fE, fI, hev_thresh);     \
 422     vpn ## _ ## dir ## _loop_filter8_c(dstV, stride, fE, fI, hev_thresh);     \
 423 }                                                                             \
 424                                                                               \
 425 static void vpn ## _ ## dir ## _loop_filter8uv_inner_c(uint8_t *dstU,         \
 426                                                        uint8_t *dstV,         \
 427                                                        ptrdiff_t stride,      \
 428                                                        int fE, int fI,        \
 429                                                        int hev_thresh)        \
 430 {                                                                             \
 431     vpn ## _ ## dir ## _loop_filter8_inner_c(dstU, stride, fE, fI,            \
 432                                              hev_thresh);                     \
 433     vpn ## _ ## dir ## _loop_filter8_inner_c(dstV, stride, fE, fI,            \
 434                                              hev_thresh);                     \
 435 }
 436
 437 #define LOOP_FILTER_SIMPLE(vpn)                                               \
 438 static void vpn ## _v_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride,    \
 439                                            int flim)                          \
 440 {                                                                             \
 441     int i;                                                                    \
 442     for (i = 0; i < 16; i++)                                                  \
 443         if (vpn ## _simple_limit(dst + i, stride, flim))                      \
 444             vpn ## _filter_common(dst + i, stride, 1);                        \
 445 }                                                                             \
 446                                                                               \
 447 static void vpn ## _h_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride,    \
 448                                            int flim)                          \
 449 {                                                                             \
 450     int i;                                                                    \
 451     for (i = 0; i < 16; i++)                                                  \
 452         if (vpn ## _simple_limit(dst + i * stride, 1, flim))                  \
 453             vpn ## _filter_common(dst + i * stride, 1, 1);                    \
 454 }
 455
 456 #define LOOP_FILTERS(vpn)                \
 457     LOOP_FILTER(vpn, v, 16, 1, stride, ) \
 458     LOOP_FILTER(vpn, h, 16, stride, 1, ) \
 459     UV_LOOP_FILTER(vpn, v, 1, stride)    \
 460     UV_LOOP_FILTER(vpn, h, stride, 1)    \
 461     LOOP_FILTER_SIMPLE(vpn)              \
 462
 463 static const uint8_t subpel_filters[7][6] = {
 464     { 0,  6, 123,  12,  1, 0 },
 465     { 2, 11, 108,  36,  8, 1 },
 466     { 0,  9,  93,  50,  6, 0 },
 467     { 3, 16,  77,  77, 16, 3 },
 468     { 0,  6,  50,  93,  9, 0 },
 469     { 1,  8,  36, 108, 11, 2 },
 470     { 0,  1,  12, 123,  6, 0 },
 471 };
 472
 473 #define PUT_PIXELS(WIDTH)                                                     \
 474 static void put_vp8_pixels ## WIDTH ## _c(uint8_t *dst, ptrdiff_t dststride,  \
 475                                           uint8_t *src, ptrdiff_t srcstride,  \
 476                                           int h, int x, int y)                \
 477 {                                                                             \
 478     int i;                                                                    \
 479     for (i = 0; i < h; i++, dst += dststride, src += srcstride)               \
 480         memcpy(dst, src, WIDTH);                                              \
 481 }
 482
 483 PUT_PIXELS(16)
 484 PUT_PIXELS(8)
 485 PUT_PIXELS(4)
 486
 487 #define FILTER_6TAP(src, F, stride)                                           \
 488     cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] +             \
 489         F[0] * src[x - 2 * stride] + F[3] * src[x + 1 * stride] -             \
 490         F[4] * src[x + 2 * stride] + F[5] * src[x + 3 * stride] + 64) >> 7]
 491
 492 #define FILTER_4TAP(src, F, stride)                                           \
 493     cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] +             \
 494         F[3] * src[x + 1 * stride] - F[4] * src[x + 2 * stride] + 64) >> 7]
 495
 496 #define VP8_EPEL_H(SIZE, TAPS)                                                \
 497 static void put_vp8_epel ## SIZE ## _h ## TAPS ## _c(uint8_t *dst,            \
 498                                                      ptrdiff_t dststride,     \
 499                                                      uint8_t *src,            \
 500                                                      ptrdiff_t srcstride,     \
 501                                                      int h, int mx, int my)   \
 502 {                                                                             \
 503     const uint8_t *filter = subpel_filters[mx - 1];                           \
 504     const uint8_t *cm     = ff_crop_tab + MAX_NEG_CROP;                       \
 505     int x, y;                                                                 \
 506     for (y = 0; y < h; y++) {                                                 \
 507         for (x = 0; x < SIZE; x++)                                            \
 508             dst[x] = FILTER_ ## TAPS ## TAP(src, filter, 1);                  \
 509         dst += dststride;                                                     \
 510         src += srcstride;                                                     \
 511     }                                                                         \
 512 }
 513
 514 #define VP8_EPEL_V(SIZE, TAPS)                                                \
 515 static void put_vp8_epel ## SIZE ## _v ## TAPS ## _c(uint8_t *dst,            \
 516                                                      ptrdiff_t dststride,     \
 517                                                      uint8_t *src,            \
 518                                                      ptrdiff_t srcstride,     \
 519                                                      int h, int mx, int my)   \
 520 {                                                                             \
 521     const uint8_t *filter = subpel_filters[my - 1];                           \
 522     const uint8_t *cm     = ff_crop_tab + MAX_NEG_CROP;                       \
 523     int x, y;                                                                 \
 524     for (y = 0; y < h; y++) {                                                 \
 525         for (x = 0; x < SIZE; x++)                                            \
 526             dst[x] = FILTER_ ## TAPS ## TAP(src, filter, srcstride);          \
 527         dst += dststride;                                                     \
 528         src += srcstride;                                                     \
 529     }                                                                         \
 530 }
 531
 532 #define VP8_EPEL_HV(SIZE, HTAPS, VTAPS)                                       \
 533 static void                                                                   \
 534 put_vp8_epel ## SIZE ## _h ## HTAPS ## v ## VTAPS ## _c(uint8_t *dst,         \
 535                                                         ptrdiff_t dststride,  \
 536                                                         uint8_t *src,         \
 537                                                         ptrdiff_t srcstride,  \
 538                                                         int h, int mx,        \
 539                                                         int my)               \
 540 {                                                                             \
 541     const uint8_t *filter = subpel_filters[mx - 1];                           \
 542     const uint8_t *cm     = ff_crop_tab + MAX_NEG_CROP;                       \
 543     int x, y;                                                                 \
 544     uint8_t tmp_array[(2 * SIZE + VTAPS - 1) * SIZE];                         \
 545     uint8_t *tmp = tmp_array;                                                 \
 546     src -= (2 - (VTAPS == 4)) * srcstride;                                    \
 547                                                                               \
 548     for (y = 0; y < h + VTAPS - 1; y++) {                                     \
 549         for (x = 0; x < SIZE; x++)                                            \
 550             tmp[x] = FILTER_ ## HTAPS ## TAP(src, filter, 1);                 \
 551         tmp += SIZE;                                                          \
 552         src += srcstride;                                                     \
 553     }                                                                         \
 554     tmp    = tmp_array + (2 - (VTAPS == 4)) * SIZE;                           \
 555     filter = subpel_filters[my - 1];                                          \
 556                                                                               \
 557     for (y = 0; y < h; y++) {                                                 \
 558         for (x = 0; x < SIZE; x++)                                            \
 559             dst[x] = FILTER_ ## VTAPS ## TAP(tmp, filter, SIZE);              \
 560         dst += dststride;                                                     \
 561         tmp += SIZE;                                                          \
 562     }                                                                         \
 563 }
 564
 565 VP8_EPEL_H(16, 4)
 566 VP8_EPEL_H(8,  4)
 567 VP8_EPEL_H(4,  4)
 568 VP8_EPEL_H(16, 6)
 569 VP8_EPEL_H(8,  6)
 570 VP8_EPEL_H(4,  6)
 571 VP8_EPEL_V(16, 4)
 572 VP8_EPEL_V(8,  4)
 573 VP8_EPEL_V(4,  4)
 574 VP8_EPEL_V(16, 6)
 575 VP8_EPEL_V(8,  6)
 576 VP8_EPEL_V(4,  6)
 577
 578 VP8_EPEL_HV(16, 4, 4)
 579 VP8_EPEL_HV(8,  4, 4)
 580 VP8_EPEL_HV(4,  4, 4)
 581 VP8_EPEL_HV(16, 4, 6)
 582 VP8_EPEL_HV(8,  4, 6)
 583 VP8_EPEL_HV(4,  4, 6)
 584 VP8_EPEL_HV(16, 6, 4)
 585 VP8_EPEL_HV(8,  6, 4)
 586 VP8_EPEL_HV(4,  6, 4)
 587 VP8_EPEL_HV(16, 6, 6)
 588 VP8_EPEL_HV(8,  6, 6)
 589 VP8_EPEL_HV(4,  6, 6)
 590
 591 #define VP8_BILINEAR(SIZE)                                                    \
 592 static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t dstride, \
 593                                              uint8_t *src, ptrdiff_t sstride, \
 594                                              int h, int mx, int my)           \
 595 {                                                                             \
 596     int a = 8 - mx, b = mx;                                                   \
 597     int x, y;                                                                 \
 598     for (y = 0; y < h; y++) {                                                 \
 599         for (x = 0; x < SIZE; x++)                                            \
 600             dst[x] = (a * src[x] + b * src[x + 1] + 4) >> 3;                  \
 601         dst += dstride;                                                       \
 602         src += sstride;                                                       \
 603     }                                                                         \
 604 }                                                                             \
 605                                                                               \
 606 static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t dstride, \
 607                                              uint8_t *src, ptrdiff_t sstride, \
 608                                              int h, int mx, int my)           \
 609 {                                                                             \
 610     int c = 8 - my, d = my;                                                   \
 611     int x, y;                                                                 \
 612     for (y = 0; y < h; y++) {                                                 \
 613         for (x = 0; x < SIZE; x++)                                            \
 614             dst[x] = (c * src[x] + d * src[x + sstride] + 4) >> 3;            \
 615         dst += dstride;                                                       \
 616         src += sstride;                                                       \
 617     }                                                                         \
 618 }                                                                             \
 619                                                                               \
 620 static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst,                   \
 621                                               ptrdiff_t dstride,              \
 622                                               uint8_t *src,                   \
 623                                               ptrdiff_t sstride,              \
 624                                               int h, int mx, int my)          \
 625 {                                                                             \
 626     int a = 8 - mx, b = mx;                                                   \
 627     int c = 8 - my, d = my;                                                   \
 628     int x, y;                                                                 \
 629     uint8_t tmp_array[(2 * SIZE + 1) * SIZE];                                 \
 630     uint8_t *tmp = tmp_array;                                                 \
 631     for (y = 0; y < h + 1; y++) {                                             \
 632         for (x = 0; x < SIZE; x++)                                            \
 633             tmp[x] = (a * src[x] + b * src[x + 1] + 4) >> 3;                  \
 634         tmp += SIZE;                                                          \
 635         src += sstride;                                                       \
 636     }                                                                         \
 637     tmp = tmp_array;                                                          \
 638     for (y = 0; y < h; y++) {                                                 \
 639         for (x = 0; x < SIZE; x++)                                            \
 640             dst[x] = (c * tmp[x] + d * tmp[x + SIZE] + 4) >> 3;               \
 641         dst += dstride;                                                       \
 642         tmp += SIZE;                                                          \
 643     }                                                                         \
 644 }
 645
 646 VP8_BILINEAR(16)
 647 VP8_BILINEAR(8)
 648 VP8_BILINEAR(4)
 649
 650 #define VP78_MC_FUNC(IDX, SIZE)                                               \
 651     dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c;   \
 652     dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c;  \
 653     dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c;  \
 654     dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c;  \
 655     dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
 656     dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
 657     dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c;  \
 658     dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
 659     dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
 660
 661 #define VP78_BILINEAR_MC_FUNC(IDX, SIZE)                                      \
 662     dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels   ## SIZE ## _c; \
 663     dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
 664     dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
 665     dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
 666     dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
 667     dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
 668     dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
 669     dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
 670     dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c
 671
 672 av_cold void ff_vp78dsp_init(VP8DSPContext *dsp)
 673 {
 674     VP78_MC_FUNC(0, 16);
 675     VP78_MC_FUNC(1, 8);
 676     VP78_MC_FUNC(2, 4);
 677
 678     VP78_BILINEAR_MC_FUNC(0, 16);
 679     VP78_BILINEAR_MC_FUNC(1, 8);
 680     VP78_BILINEAR_MC_FUNC(2, 4);
 681
 682     if (ARCH_ARM)
 683         ff_vp78dsp_init_arm(dsp);
 684     if (ARCH_PPC)
 685         ff_vp78dsp_init_ppc(dsp);
 686     if (ARCH_X86)
 687         ff_vp78dsp_init_x86(dsp);
 688 }
 689
 690 #if CONFIG_VP7_DECODER
 691 LOOP_FILTERS(vp7)
 692
 693 av_cold void ff_vp7dsp_init(VP8DSPContext *dsp)
 694 {
 695     dsp->vp8_luma_dc_wht    = vp7_luma_dc_wht_c;
 696     dsp->vp8_luma_dc_wht_dc = vp7_luma_dc_wht_dc_c;
 697     dsp->vp8_idct_add       = vp7_idct_add_c;
 698     dsp->vp8_idct_dc_add    = vp7_idct_dc_add_c;
 699     dsp->vp8_idct_dc_add4y  = vp7_idct_dc_add4y_c;
 700     dsp->vp8_idct_dc_add4uv = vp7_idct_dc_add4uv_c;
 701
 702     dsp->vp8_v_loop_filter16y = vp7_v_loop_filter16_c;
 703     dsp->vp8_h_loop_filter16y = vp7_h_loop_filter16_c;
 704     dsp->vp8_v_loop_filter8uv = vp7_v_loop_filter8uv_c;
 705     dsp->vp8_h_loop_filter8uv = vp7_h_loop_filter8uv_c;
 706
 707     dsp->vp8_v_loop_filter16y_inner = vp7_v_loop_filter16_inner_c;
 708     dsp->vp8_h_loop_filter16y_inner = vp7_h_loop_filter16_inner_c;
 709     dsp->vp8_v_loop_filter8uv_inner = vp7_v_loop_filter8uv_inner_c;
 710     dsp->vp8_h_loop_filter8uv_inner = vp7_h_loop_filter8uv_inner_c;
 711
 712     dsp->vp8_v_loop_filter_simple = vp7_v_loop_filter_simple_c;
 713     dsp->vp8_h_loop_filter_simple = vp7_h_loop_filter_simple_c;
 714 }
 715 #endif /* CONFIG_VP7_DECODER */
 716
 717 #if CONFIG_VP8_DECODER
 718 LOOP_FILTERS(vp8)
 719
 720 av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
 721 {
 722     dsp->vp8_luma_dc_wht    = vp8_luma_dc_wht_c;
 723     dsp->vp8_luma_dc_wht_dc = vp8_luma_dc_wht_dc_c;
 724     dsp->vp8_idct_add       = vp8_idct_add_c;
 725     dsp->vp8_idct_dc_add    = vp8_idct_dc_add_c;
 726     dsp->vp8_idct_dc_add4y  = vp8_idct_dc_add4y_c;
 727     dsp->vp8_idct_dc_add4uv = vp8_idct_dc_add4uv_c;
 728
 729     dsp->vp8_v_loop_filter16y = vp8_v_loop_filter16_c;
 730     dsp->vp8_h_loop_filter16y = vp8_h_loop_filter16_c;
 731     dsp->vp8_v_loop_filter8uv = vp8_v_loop_filter8uv_c;
 732     dsp->vp8_h_loop_filter8uv = vp8_h_loop_filter8uv_c;
 733
 734     dsp->vp8_v_loop_filter16y_inner = vp8_v_loop_filter16_inner_c;
 735     dsp->vp8_h_loop_filter16y_inner = vp8_h_loop_filter16_inner_c;
 736     dsp->vp8_v_loop_filter8uv_inner = vp8_v_loop_filter8uv_inner_c;
 737     dsp->vp8_h_loop_filter8uv_inner = vp8_h_loop_filter8uv_inner_c;
 738
 739     dsp->vp8_v_loop_filter_simple = vp8_v_loop_filter_simple_c;
 740     dsp->vp8_h_loop_filter_simple = vp8_h_loop_filter_simple_c;
 741
 742     if (ARCH_ARM)
 743         ff_vp8dsp_init_arm(dsp);
 744     if (ARCH_X86)
 745         ff_vp8dsp_init_x86(dsp);
 746 }
 747 #endif /* CONFIG_VP8_DECODER */