1 /* 2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <assert.h> 12 #include <string.h> 13 14 #include "./vpx_config.h" 15 #include "./vpx_dsp_rtcd.h" 16 #include "vpx/vpx_integer.h" 17 #include "vpx_dsp/vpx_convolve.h" 18 #include "vpx_dsp/vpx_dsp_common.h" 19 #include "vpx_dsp/vpx_filter.h" 20 #include "vpx_ports/mem.h" 21 22 static void convolve_horiz(const uint8_t *src, ptrdiff_t src_stride, 23 uint8_t *dst, ptrdiff_t dst_stride, 24 const InterpKernel *x_filters, 25 int x0_q4, int x_step_q4, int w, int h) { 26 int x, y; 27 src -= SUBPEL_TAPS / 2 - 1; 28 for (y = 0; y < h; ++y) { 29 int x_q4 = x0_q4; 30 for (x = 0; x < w; ++x) { 31 const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; 32 const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; 33 int k, sum = 0; 34 for (k = 0; k < SUBPEL_TAPS; ++k) 35 sum += src_x[k] * x_filter[k]; 36 dst[x] = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 37 x_q4 += x_step_q4; 38 } 39 src += src_stride; 40 dst += dst_stride; 41 } 42 } 43 44 static void convolve_avg_horiz(const uint8_t *src, ptrdiff_t src_stride, 45 uint8_t *dst, ptrdiff_t dst_stride, 46 const InterpKernel *x_filters, 47 int x0_q4, int x_step_q4, int w, int h) { 48 int x, y; 49 src -= SUBPEL_TAPS / 2 - 1; 50 for (y = 0; y < h; ++y) { 51 int x_q4 = x0_q4; 52 for (x = 0; x < w; ++x) { 53 const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; 54 const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; 55 int k, sum = 0; 56 for (k = 0; k < SUBPEL_TAPS; ++k) 57 sum += src_x[k] * x_filter[k]; 58 dst[x] = ROUND_POWER_OF_TWO(dst[x] + 59 clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)), 1); 60 x_q4 += x_step_q4; 61 } 62 src += src_stride; 63 dst += dst_stride; 64 } 65 } 66 67 static void convolve_vert(const uint8_t *src, ptrdiff_t src_stride, 68 uint8_t *dst, ptrdiff_t dst_stride, 69 const InterpKernel *y_filters, 70 int y0_q4, int y_step_q4, int w, int h) { 71 int x, y; 72 src -= src_stride * (SUBPEL_TAPS / 2 - 1); 73 74 for (x = 0; x < w; ++x) { 75 int y_q4 = y0_q4; 76 for (y = 0; y < h; ++y) { 77 const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; 78 const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; 79 int k, sum = 0; 80 for (k = 0; k < SUBPEL_TAPS; ++k) 81 sum += src_y[k * src_stride] * y_filter[k]; 82 dst[y * dst_stride] = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 83 y_q4 += y_step_q4; 84 } 85 ++src; 86 ++dst; 87 } 88 } 89 90 static void convolve_avg_vert(const uint8_t *src, ptrdiff_t src_stride, 91 uint8_t *dst, ptrdiff_t dst_stride, 92 const InterpKernel *y_filters, 93 int y0_q4, int y_step_q4, int w, int h) { 94 int x, y; 95 src -= src_stride * (SUBPEL_TAPS / 2 - 1); 96 97 for (x = 0; x < w; ++x) { 98 int y_q4 = y0_q4; 99 for (y = 0; y < h; ++y) { 100 const unsigned char *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; 101 const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; 102 int k, sum = 0; 103 for (k = 0; k < SUBPEL_TAPS; ++k) 104 sum += src_y[k * src_stride] * y_filter[k]; 105 dst[y * dst_stride] = ROUND_POWER_OF_TWO(dst[y * dst_stride] + 106 clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)), 1); 107 y_q4 += y_step_q4; 108 } 109 ++src; 110 ++dst; 111 } 112 } 113 114 static void convolve(const uint8_t *src, ptrdiff_t src_stride, 115 uint8_t *dst, ptrdiff_t dst_stride, 116 const InterpKernel *const x_filters, 117 int x0_q4, int x_step_q4, 118 const InterpKernel *const y_filters, 119 int y0_q4, int y_step_q4, 120 int w, int h) { 121 // Note: Fixed size intermediate buffer, temp, places limits on parameters. 122 // 2d filtering proceeds in 2 steps: 123 // (1) Interpolate horizontally into an intermediate buffer, temp. 124 // (2) Interpolate temp vertically to derive the sub-pixel result. 125 // Deriving the maximum number of rows in the temp buffer (135): 126 // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative). 127 // --Largest block size is 64x64 pixels. 128 // --64 rows in the downscaled frame span a distance of (64 - 1) * 32 in the 129 // original frame (in 1/16th pixel units). 130 // --Must round-up because block may be located at sub-pixel position. 131 // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails. 132 // --((64 - 1) * 32 + 15) >> 4 + 8 = 135. 133 uint8_t temp[135 * 64]; 134 int intermediate_height = 135 (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; 136 137 assert(w <= 64); 138 assert(h <= 64); 139 assert(y_step_q4 <= 32); 140 assert(x_step_q4 <= 32); 141 142 convolve_horiz(src - src_stride * (SUBPEL_TAPS / 2 - 1), src_stride, temp, 64, 143 x_filters, x0_q4, x_step_q4, w, intermediate_height); 144 convolve_vert(temp + 64 * (SUBPEL_TAPS / 2 - 1), 64, dst, dst_stride, 145 y_filters, y0_q4, y_step_q4, w, h); 146 } 147 148 static const InterpKernel *get_filter_base(const int16_t *filter) { 149 // NOTE: This assumes that the filter table is 256-byte aligned. 150 // TODO(agrange) Modify to make independent of table alignment. 151 return (const InterpKernel *)(((intptr_t)filter) & ~((intptr_t)0xFF)); 152 } 153 154 static int get_filter_offset(const int16_t *f, const InterpKernel *base) { 155 return (int)((const InterpKernel *)(intptr_t)f - base); 156 } 157 158 void vpx_convolve8_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 159 uint8_t *dst, ptrdiff_t dst_stride, 160 const int16_t *filter_x, int x_step_q4, 161 const int16_t *filter_y, int y_step_q4, 162 int w, int h) { 163 const InterpKernel *const filters_x = get_filter_base(filter_x); 164 const int x0_q4 = get_filter_offset(filter_x, filters_x); 165 166 (void)filter_y; 167 (void)y_step_q4; 168 169 convolve_horiz(src, src_stride, dst, dst_stride, filters_x, 170 x0_q4, x_step_q4, w, h); 171 } 172 173 void vpx_convolve8_avg_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 174 uint8_t *dst, ptrdiff_t dst_stride, 175 const int16_t *filter_x, int x_step_q4, 176 const int16_t *filter_y, int y_step_q4, 177 int w, int h) { 178 const InterpKernel *const filters_x = get_filter_base(filter_x); 179 const int x0_q4 = get_filter_offset(filter_x, filters_x); 180 181 (void)filter_y; 182 (void)y_step_q4; 183 184 convolve_avg_horiz(src, src_stride, dst, dst_stride, filters_x, 185 x0_q4, x_step_q4, w, h); 186 } 187 188 void vpx_convolve8_vert_c(const uint8_t *src, ptrdiff_t src_stride, 189 uint8_t *dst, ptrdiff_t dst_stride, 190 const int16_t *filter_x, int x_step_q4, 191 const int16_t *filter_y, int y_step_q4, 192 int w, int h) { 193 const InterpKernel *const filters_y = get_filter_base(filter_y); 194 const int y0_q4 = get_filter_offset(filter_y, filters_y); 195 196 (void)filter_x; 197 (void)x_step_q4; 198 199 convolve_vert(src, src_stride, dst, dst_stride, filters_y, 200 y0_q4, y_step_q4, w, h); 201 } 202 203 void vpx_convolve8_avg_vert_c(const uint8_t *src, ptrdiff_t src_stride, 204 uint8_t *dst, ptrdiff_t dst_stride, 205 const int16_t *filter_x, int x_step_q4, 206 const int16_t *filter_y, int y_step_q4, 207 int w, int h) { 208 const InterpKernel *const filters_y = get_filter_base(filter_y); 209 const int y0_q4 = get_filter_offset(filter_y, filters_y); 210 211 (void)filter_x; 212 (void)x_step_q4; 213 214 convolve_avg_vert(src, src_stride, dst, dst_stride, filters_y, 215 y0_q4, y_step_q4, w, h); 216 } 217 218 void vpx_convolve8_c(const uint8_t *src, ptrdiff_t src_stride, 219 uint8_t *dst, ptrdiff_t dst_stride, 220 const int16_t *filter_x, int x_step_q4, 221 const int16_t *filter_y, int y_step_q4, 222 int w, int h) { 223 const InterpKernel *const filters_x = get_filter_base(filter_x); 224 const int x0_q4 = get_filter_offset(filter_x, filters_x); 225 226 const InterpKernel *const filters_y = get_filter_base(filter_y); 227 const int y0_q4 = get_filter_offset(filter_y, filters_y); 228 229 convolve(src, src_stride, dst, dst_stride, 230 filters_x, x0_q4, x_step_q4, 231 filters_y, y0_q4, y_step_q4, w, h); 232 } 233 234 void vpx_convolve8_avg_c(const uint8_t *src, ptrdiff_t src_stride, 235 uint8_t *dst, ptrdiff_t dst_stride, 236 const int16_t *filter_x, int x_step_q4, 237 const int16_t *filter_y, int y_step_q4, 238 int w, int h) { 239 /* Fixed size intermediate buffer places limits on parameters. */ 240 DECLARE_ALIGNED(16, uint8_t, temp[64 * 64]); 241 assert(w <= 64); 242 assert(h <= 64); 243 244 vpx_convolve8_c(src, src_stride, temp, 64, 245 filter_x, x_step_q4, filter_y, y_step_q4, w, h); 246 vpx_convolve_avg_c(temp, 64, dst, dst_stride, NULL, 0, NULL, 0, w, h); 247 } 248 249 void vpx_convolve_copy_c(const uint8_t *src, ptrdiff_t src_stride, 250 uint8_t *dst, ptrdiff_t dst_stride, 251 const int16_t *filter_x, int filter_x_stride, 252 const int16_t *filter_y, int filter_y_stride, 253 int w, int h) { 254 int r; 255 256 (void)filter_x; (void)filter_x_stride; 257 (void)filter_y; (void)filter_y_stride; 258 259 for (r = h; r > 0; --r) { 260 memcpy(dst, src, w); 261 src += src_stride; 262 dst += dst_stride; 263 } 264 } 265 266 void vpx_convolve_avg_c(const uint8_t *src, ptrdiff_t src_stride, 267 uint8_t *dst, ptrdiff_t dst_stride, 268 const int16_t *filter_x, int filter_x_stride, 269 const int16_t *filter_y, int filter_y_stride, 270 int w, int h) { 271 int x, y; 272 273 (void)filter_x; (void)filter_x_stride; 274 (void)filter_y; (void)filter_y_stride; 275 276 for (y = 0; y < h; ++y) { 277 for (x = 0; x < w; ++x) 278 dst[x] = ROUND_POWER_OF_TWO(dst[x] + src[x], 1); 279 280 src += src_stride; 281 dst += dst_stride; 282 } 283 } 284 285 void vpx_scaled_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 286 uint8_t *dst, ptrdiff_t dst_stride, 287 const int16_t *filter_x, int x_step_q4, 288 const int16_t *filter_y, int y_step_q4, 289 int w, int h) { 290 vpx_convolve8_horiz_c(src, src_stride, dst, dst_stride, filter_x, x_step_q4, 291 filter_y, y_step_q4, w, h); 292 } 293 294 void vpx_scaled_vert_c(const uint8_t *src, ptrdiff_t src_stride, 295 uint8_t *dst, ptrdiff_t dst_stride, 296 const int16_t *filter_x, int x_step_q4, 297 const int16_t *filter_y, int y_step_q4, 298 int w, int h) { 299 vpx_convolve8_vert_c(src, src_stride, dst, dst_stride, filter_x, x_step_q4, 300 filter_y, y_step_q4, w, h); 301 } 302 303 void vpx_scaled_2d_c(const uint8_t *src, ptrdiff_t src_stride, 304 uint8_t *dst, ptrdiff_t dst_stride, 305 const int16_t *filter_x, int x_step_q4, 306 const int16_t *filter_y, int y_step_q4, 307 int w, int h) { 308 vpx_convolve8_c(src, src_stride, dst, dst_stride, filter_x, x_step_q4, 309 filter_y, y_step_q4, w, h); 310 } 311 312 void vpx_scaled_avg_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 313 uint8_t *dst, ptrdiff_t dst_stride, 314 const int16_t *filter_x, int x_step_q4, 315 const int16_t *filter_y, int y_step_q4, 316 int w, int h) { 317 vpx_convolve8_avg_horiz_c(src, src_stride, dst, dst_stride, filter_x, 318 x_step_q4, filter_y, y_step_q4, w, h); 319 } 320 321 void vpx_scaled_avg_vert_c(const uint8_t *src, ptrdiff_t src_stride, 322 uint8_t *dst, ptrdiff_t dst_stride, 323 const int16_t *filter_x, int x_step_q4, 324 const int16_t *filter_y, int y_step_q4, 325 int w, int h) { 326 vpx_convolve8_avg_vert_c(src, src_stride, dst, dst_stride, filter_x, 327 x_step_q4, filter_y, y_step_q4, w, h); 328 } 329 330 void vpx_scaled_avg_2d_c(const uint8_t *src, ptrdiff_t src_stride, 331 uint8_t *dst, ptrdiff_t dst_stride, 332 const int16_t *filter_x, int x_step_q4, 333 const int16_t *filter_y, int y_step_q4, 334 int w, int h) { 335 vpx_convolve8_avg_c(src, src_stride, dst, dst_stride, filter_x, x_step_q4, 336 filter_y, y_step_q4, w, h); 337 } 338 339 #if CONFIG_VP9_HIGHBITDEPTH 340 static void highbd_convolve_horiz(const uint8_t *src8, ptrdiff_t src_stride, 341 uint8_t *dst8, ptrdiff_t dst_stride, 342 const InterpKernel *x_filters, 343 int x0_q4, int x_step_q4, 344 int w, int h, int bd) { 345 int x, y; 346 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 347 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 348 src -= SUBPEL_TAPS / 2 - 1; 349 for (y = 0; y < h; ++y) { 350 int x_q4 = x0_q4; 351 for (x = 0; x < w; ++x) { 352 const uint16_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; 353 const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; 354 int k, sum = 0; 355 for (k = 0; k < SUBPEL_TAPS; ++k) 356 sum += src_x[k] * x_filter[k]; 357 dst[x] = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd); 358 x_q4 += x_step_q4; 359 } 360 src += src_stride; 361 dst += dst_stride; 362 } 363 } 364 365 static void highbd_convolve_avg_horiz(const uint8_t *src8, ptrdiff_t src_stride, 366 uint8_t *dst8, ptrdiff_t dst_stride, 367 const InterpKernel *x_filters, 368 int x0_q4, int x_step_q4, 369 int w, int h, int bd) { 370 int x, y; 371 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 372 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 373 src -= SUBPEL_TAPS / 2 - 1; 374 for (y = 0; y < h; ++y) { 375 int x_q4 = x0_q4; 376 for (x = 0; x < w; ++x) { 377 const uint16_t *const src_x = &src[x_q4 >> SUBPEL_BITS]; 378 const int16_t *const x_filter = x_filters[x_q4 & SUBPEL_MASK]; 379 int k, sum = 0; 380 for (k = 0; k < SUBPEL_TAPS; ++k) 381 sum += src_x[k] * x_filter[k]; 382 dst[x] = ROUND_POWER_OF_TWO(dst[x] + 383 clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd), 1); 384 x_q4 += x_step_q4; 385 } 386 src += src_stride; 387 dst += dst_stride; 388 } 389 } 390 391 static void highbd_convolve_vert(const uint8_t *src8, ptrdiff_t src_stride, 392 uint8_t *dst8, ptrdiff_t dst_stride, 393 const InterpKernel *y_filters, 394 int y0_q4, int y_step_q4, int w, int h, 395 int bd) { 396 int x, y; 397 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 398 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 399 src -= src_stride * (SUBPEL_TAPS / 2 - 1); 400 for (x = 0; x < w; ++x) { 401 int y_q4 = y0_q4; 402 for (y = 0; y < h; ++y) { 403 const uint16_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; 404 const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; 405 int k, sum = 0; 406 for (k = 0; k < SUBPEL_TAPS; ++k) 407 sum += src_y[k * src_stride] * y_filter[k]; 408 dst[y * dst_stride] = clip_pixel_highbd( 409 ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd); 410 y_q4 += y_step_q4; 411 } 412 ++src; 413 ++dst; 414 } 415 } 416 417 static void highbd_convolve_avg_vert(const uint8_t *src8, ptrdiff_t src_stride, 418 uint8_t *dst8, ptrdiff_t dst_stride, 419 const InterpKernel *y_filters, 420 int y0_q4, int y_step_q4, int w, int h, 421 int bd) { 422 int x, y; 423 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 424 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 425 src -= src_stride * (SUBPEL_TAPS / 2 - 1); 426 for (x = 0; x < w; ++x) { 427 int y_q4 = y0_q4; 428 for (y = 0; y < h; ++y) { 429 const uint16_t *src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride]; 430 const int16_t *const y_filter = y_filters[y_q4 & SUBPEL_MASK]; 431 int k, sum = 0; 432 for (k = 0; k < SUBPEL_TAPS; ++k) 433 sum += src_y[k * src_stride] * y_filter[k]; 434 dst[y * dst_stride] = ROUND_POWER_OF_TWO(dst[y * dst_stride] + 435 clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd), 1); 436 y_q4 += y_step_q4; 437 } 438 ++src; 439 ++dst; 440 } 441 } 442 443 static void highbd_convolve(const uint8_t *src, ptrdiff_t src_stride, 444 uint8_t *dst, ptrdiff_t dst_stride, 445 const InterpKernel *const x_filters, 446 int x0_q4, int x_step_q4, 447 const InterpKernel *const y_filters, 448 int y0_q4, int y_step_q4, 449 int w, int h, int bd) { 450 // Note: Fixed size intermediate buffer, temp, places limits on parameters. 451 // 2d filtering proceeds in 2 steps: 452 // (1) Interpolate horizontally into an intermediate buffer, temp. 453 // (2) Interpolate temp vertically to derive the sub-pixel result. 454 // Deriving the maximum number of rows in the temp buffer (135): 455 // --Smallest scaling factor is x1/2 ==> y_step_q4 = 32 (Normative). 456 // --Largest block size is 64x64 pixels. 457 // --64 rows in the downscaled frame span a distance of (64 - 1) * 32 in the 458 // original frame (in 1/16th pixel units). 459 // --Must round-up because block may be located at sub-pixel position. 460 // --Require an additional SUBPEL_TAPS rows for the 8-tap filter tails. 461 // --((64 - 1) * 32 + 15) >> 4 + 8 = 135. 462 uint16_t temp[64 * 135]; 463 int intermediate_height = 464 (((h - 1) * y_step_q4 + y0_q4) >> SUBPEL_BITS) + SUBPEL_TAPS; 465 466 assert(w <= 64); 467 assert(h <= 64); 468 assert(y_step_q4 <= 32); 469 assert(x_step_q4 <= 32); 470 471 highbd_convolve_horiz(src - src_stride * (SUBPEL_TAPS / 2 - 1), 472 src_stride, CONVERT_TO_BYTEPTR(temp), 64, 473 x_filters, x0_q4, x_step_q4, w, 474 intermediate_height, bd); 475 highbd_convolve_vert(CONVERT_TO_BYTEPTR(temp) + 64 * (SUBPEL_TAPS / 2 - 1), 476 64, dst, dst_stride, y_filters, y0_q4, y_step_q4, 477 w, h, bd); 478 } 479 480 481 void vpx_highbd_convolve8_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 482 uint8_t *dst, ptrdiff_t dst_stride, 483 const int16_t *filter_x, int x_step_q4, 484 const int16_t *filter_y, int y_step_q4, 485 int w, int h, int bd) { 486 const InterpKernel *const filters_x = get_filter_base(filter_x); 487 const int x0_q4 = get_filter_offset(filter_x, filters_x); 488 (void)filter_y; 489 (void)y_step_q4; 490 491 highbd_convolve_horiz(src, src_stride, dst, dst_stride, filters_x, 492 x0_q4, x_step_q4, w, h, bd); 493 } 494 495 void vpx_highbd_convolve8_avg_horiz_c(const uint8_t *src, ptrdiff_t src_stride, 496 uint8_t *dst, ptrdiff_t dst_stride, 497 const int16_t *filter_x, int x_step_q4, 498 const int16_t *filter_y, int y_step_q4, 499 int w, int h, int bd) { 500 const InterpKernel *const filters_x = get_filter_base(filter_x); 501 const int x0_q4 = get_filter_offset(filter_x, filters_x); 502 (void)filter_y; 503 (void)y_step_q4; 504 505 highbd_convolve_avg_horiz(src, src_stride, dst, dst_stride, filters_x, 506 x0_q4, x_step_q4, w, h, bd); 507 } 508 509 void vpx_highbd_convolve8_vert_c(const uint8_t *src, ptrdiff_t src_stride, 510 uint8_t *dst, ptrdiff_t dst_stride, 511 const int16_t *filter_x, int x_step_q4, 512 const int16_t *filter_y, int y_step_q4, 513 int w, int h, int bd) { 514 const InterpKernel *const filters_y = get_filter_base(filter_y); 515 const int y0_q4 = get_filter_offset(filter_y, filters_y); 516 (void)filter_x; 517 (void)x_step_q4; 518 519 highbd_convolve_vert(src, src_stride, dst, dst_stride, filters_y, 520 y0_q4, y_step_q4, w, h, bd); 521 } 522 523 void vpx_highbd_convolve8_avg_vert_c(const uint8_t *src, ptrdiff_t src_stride, 524 uint8_t *dst, ptrdiff_t dst_stride, 525 const int16_t *filter_x, int x_step_q4, 526 const int16_t *filter_y, int y_step_q4, 527 int w, int h, int bd) { 528 const InterpKernel *const filters_y = get_filter_base(filter_y); 529 const int y0_q4 = get_filter_offset(filter_y, filters_y); 530 (void)filter_x; 531 (void)x_step_q4; 532 533 highbd_convolve_avg_vert(src, src_stride, dst, dst_stride, filters_y, 534 y0_q4, y_step_q4, w, h, bd); 535 } 536 537 void vpx_highbd_convolve8_c(const uint8_t *src, ptrdiff_t src_stride, 538 uint8_t *dst, ptrdiff_t dst_stride, 539 const int16_t *filter_x, int x_step_q4, 540 const int16_t *filter_y, int y_step_q4, 541 int w, int h, int bd) { 542 const InterpKernel *const filters_x = get_filter_base(filter_x); 543 const int x0_q4 = get_filter_offset(filter_x, filters_x); 544 545 const InterpKernel *const filters_y = get_filter_base(filter_y); 546 const int y0_q4 = get_filter_offset(filter_y, filters_y); 547 548 highbd_convolve(src, src_stride, dst, dst_stride, 549 filters_x, x0_q4, x_step_q4, 550 filters_y, y0_q4, y_step_q4, w, h, bd); 551 } 552 553 void vpx_highbd_convolve8_avg_c(const uint8_t *src, ptrdiff_t src_stride, 554 uint8_t *dst, ptrdiff_t dst_stride, 555 const int16_t *filter_x, int x_step_q4, 556 const int16_t *filter_y, int y_step_q4, 557 int w, int h, int bd) { 558 // Fixed size intermediate buffer places limits on parameters. 559 DECLARE_ALIGNED(16, uint16_t, temp[64 * 64]); 560 assert(w <= 64); 561 assert(h <= 64); 562 563 vpx_highbd_convolve8_c(src, src_stride, CONVERT_TO_BYTEPTR(temp), 64, 564 filter_x, x_step_q4, filter_y, y_step_q4, w, h, bd); 565 vpx_highbd_convolve_avg_c(CONVERT_TO_BYTEPTR(temp), 64, dst, dst_stride, 566 NULL, 0, NULL, 0, w, h, bd); 567 } 568 569 void vpx_highbd_convolve_copy_c(const uint8_t *src8, ptrdiff_t src_stride, 570 uint8_t *dst8, ptrdiff_t dst_stride, 571 const int16_t *filter_x, int filter_x_stride, 572 const int16_t *filter_y, int filter_y_stride, 573 int w, int h, int bd) { 574 int r; 575 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 576 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 577 (void)filter_x; 578 (void)filter_y; 579 (void)filter_x_stride; 580 (void)filter_y_stride; 581 (void)bd; 582 583 for (r = h; r > 0; --r) { 584 memcpy(dst, src, w * sizeof(uint16_t)); 585 src += src_stride; 586 dst += dst_stride; 587 } 588 } 589 590 void vpx_highbd_convolve_avg_c(const uint8_t *src8, ptrdiff_t src_stride, 591 uint8_t *dst8, ptrdiff_t dst_stride, 592 const int16_t *filter_x, int filter_x_stride, 593 const int16_t *filter_y, int filter_y_stride, 594 int w, int h, int bd) { 595 int x, y; 596 uint16_t *src = CONVERT_TO_SHORTPTR(src8); 597 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); 598 (void)filter_x; 599 (void)filter_y; 600 (void)filter_x_stride; 601 (void)filter_y_stride; 602 (void)bd; 603 604 for (y = 0; y < h; ++y) { 605 for (x = 0; x < w; ++x) { 606 dst[x] = ROUND_POWER_OF_TWO(dst[x] + src[x], 1); 607 } 608 src += src_stride; 609 dst += dst_stride; 610 } 611 } 612 #endif 613
