1 /* 2 * Copyright (c) 2010 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 "./vpx_config.h" 12 13 #include "vpx_mem/vpx_mem.h" 14 #include "vpx_ports/vpx_once.h" 15 16 #include "vp9_rtcd.h" 17 18 #include "vp9/common/vp9_reconintra.h" 19 #include "vp9/common/vp9_onyxc_int.h" 20 21 const TX_TYPE mode2txfm_map[MB_MODE_COUNT] = { 22 DCT_DCT, // DC 23 ADST_DCT, // V 24 DCT_ADST, // H 25 DCT_DCT, // D45 26 ADST_ADST, // D135 27 ADST_DCT, // D117 28 DCT_ADST, // D153 29 DCT_ADST, // D207 30 ADST_DCT, // D63 31 ADST_ADST, // TM 32 DCT_DCT, // NEARESTMV 33 DCT_DCT, // NEARMV 34 DCT_DCT, // ZEROMV 35 DCT_DCT // NEWMV 36 }; 37 38 #define intra_pred_sized(type, size) \ 39 void vp9_##type##_predictor_##size##x##size##_c(uint8_t *dst, \ 40 ptrdiff_t stride, \ 41 const uint8_t *above, \ 42 const uint8_t *left) { \ 43 type##_predictor(dst, stride, size, above, left); \ 44 } 45 46 #define intra_pred_allsizes(type) \ 47 intra_pred_sized(type, 4) \ 48 intra_pred_sized(type, 8) \ 49 intra_pred_sized(type, 16) \ 50 intra_pred_sized(type, 32) 51 52 static INLINE void d207_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 53 const uint8_t *above, const uint8_t *left) { 54 int r, c; 55 56 // first column 57 for (r = 0; r < bs - 1; ++r) 58 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1], 1); 59 dst[(bs - 1) * stride] = left[bs - 1]; 60 dst++; 61 62 // second column 63 for (r = 0; r < bs - 2; ++r) 64 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1] * 2 + 65 left[r + 2], 2); 66 dst[(bs - 2) * stride] = ROUND_POWER_OF_TWO(left[bs - 2] + 67 left[bs - 1] * 3, 2); 68 dst[(bs - 1) * stride] = left[bs - 1]; 69 dst++; 70 71 // rest of last row 72 for (c = 0; c < bs - 2; ++c) 73 dst[(bs - 1) * stride + c] = left[bs - 1]; 74 75 for (r = bs - 2; r >= 0; --r) 76 for (c = 0; c < bs - 2; ++c) 77 dst[r * stride + c] = dst[(r + 1) * stride + c - 2]; 78 } 79 intra_pred_allsizes(d207) 80 81 static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 82 const uint8_t *above, const uint8_t *left) { 83 int r, c; 84 for (r = 0; r < bs; ++r) { 85 for (c = 0; c < bs; ++c) 86 dst[c] = r & 1 ? ROUND_POWER_OF_TWO(above[r/2 + c] + 87 above[r/2 + c + 1] * 2 + 88 above[r/2 + c + 2], 2) 89 : ROUND_POWER_OF_TWO(above[r/2 + c] + 90 above[r/2 + c + 1], 1); 91 dst += stride; 92 } 93 } 94 intra_pred_allsizes(d63) 95 96 static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 97 const uint8_t *above, const uint8_t *left) { 98 int r, c; 99 for (r = 0; r < bs; ++r) { 100 for (c = 0; c < bs; ++c) 101 dst[c] = r + c + 2 < bs * 2 ? ROUND_POWER_OF_TWO(above[r + c] + 102 above[r + c + 1] * 2 + 103 above[r + c + 2], 2) 104 : above[bs * 2 - 1]; 105 dst += stride; 106 } 107 } 108 intra_pred_allsizes(d45) 109 110 static INLINE void d117_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 111 const uint8_t *above, const uint8_t *left) { 112 int r, c; 113 114 // first row 115 for (c = 0; c < bs; c++) 116 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c], 1); 117 dst += stride; 118 119 // second row 120 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); 121 for (c = 1; c < bs; c++) 122 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2); 123 dst += stride; 124 125 // the rest of first col 126 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); 127 for (r = 3; r < bs; ++r) 128 dst[(r - 2) * stride] = ROUND_POWER_OF_TWO(left[r - 3] + left[r - 2] * 2 + 129 left[r - 1], 2); 130 131 // the rest of the block 132 for (r = 2; r < bs; ++r) { 133 for (c = 1; c < bs; c++) 134 dst[c] = dst[-2 * stride + c - 1]; 135 dst += stride; 136 } 137 } 138 intra_pred_allsizes(d117) 139 140 static INLINE void d135_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 141 const uint8_t *above, const uint8_t *left) { 142 int r, c; 143 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); 144 for (c = 1; c < bs; c++) 145 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2); 146 147 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); 148 for (r = 2; r < bs; ++r) 149 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 + 150 left[r], 2); 151 152 dst += stride; 153 for (r = 1; r < bs; ++r) { 154 for (c = 1; c < bs; c++) 155 dst[c] = dst[-stride + c - 1]; 156 dst += stride; 157 } 158 } 159 intra_pred_allsizes(d135) 160 161 static INLINE void d153_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 162 const uint8_t *above, const uint8_t *left) { 163 int r, c; 164 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0], 1); 165 for (r = 1; r < bs; r++) 166 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 1] + left[r], 1); 167 dst++; 168 169 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); 170 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); 171 for (r = 2; r < bs; r++) 172 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 + 173 left[r], 2); 174 dst++; 175 176 for (c = 0; c < bs - 2; c++) 177 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c] * 2 + above[c + 1], 2); 178 dst += stride; 179 180 for (r = 1; r < bs; ++r) { 181 for (c = 0; c < bs - 2; c++) 182 dst[c] = dst[-stride + c - 2]; 183 dst += stride; 184 } 185 } 186 intra_pred_allsizes(d153) 187 188 static INLINE void v_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 189 const uint8_t *above, const uint8_t *left) { 190 int r; 191 192 for (r = 0; r < bs; r++) { 193 vpx_memcpy(dst, above, bs); 194 dst += stride; 195 } 196 } 197 intra_pred_allsizes(v) 198 199 static INLINE void h_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 200 const uint8_t *above, const uint8_t *left) { 201 int r; 202 203 for (r = 0; r < bs; r++) { 204 vpx_memset(dst, left[r], bs); 205 dst += stride; 206 } 207 } 208 intra_pred_allsizes(h) 209 210 static INLINE void tm_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 211 const uint8_t *above, const uint8_t *left) { 212 int r, c; 213 int ytop_left = above[-1]; 214 215 for (r = 0; r < bs; r++) { 216 for (c = 0; c < bs; c++) 217 dst[c] = clip_pixel(left[r] + above[c] - ytop_left); 218 dst += stride; 219 } 220 } 221 intra_pred_allsizes(tm) 222 223 static INLINE void dc_128_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 224 const uint8_t *above, const uint8_t *left) { 225 int r; 226 227 for (r = 0; r < bs; r++) { 228 vpx_memset(dst, 128, bs); 229 dst += stride; 230 } 231 } 232 intra_pred_allsizes(dc_128) 233 234 static INLINE void dc_left_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 235 const uint8_t *above, 236 const uint8_t *left) { 237 int i, r, expected_dc, sum = 0; 238 239 for (i = 0; i < bs; i++) 240 sum += left[i]; 241 expected_dc = (sum + (bs >> 1)) / bs; 242 243 for (r = 0; r < bs; r++) { 244 vpx_memset(dst, expected_dc, bs); 245 dst += stride; 246 } 247 } 248 intra_pred_allsizes(dc_left) 249 250 static INLINE void dc_top_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 251 const uint8_t *above, const uint8_t *left) { 252 int i, r, expected_dc, sum = 0; 253 254 for (i = 0; i < bs; i++) 255 sum += above[i]; 256 expected_dc = (sum + (bs >> 1)) / bs; 257 258 for (r = 0; r < bs; r++) { 259 vpx_memset(dst, expected_dc, bs); 260 dst += stride; 261 } 262 } 263 intra_pred_allsizes(dc_top) 264 265 static INLINE void dc_predictor(uint8_t *dst, ptrdiff_t stride, int bs, 266 const uint8_t *above, const uint8_t *left) { 267 int i, r, expected_dc, sum = 0; 268 const int count = 2 * bs; 269 270 for (i = 0; i < bs; i++) { 271 sum += above[i]; 272 sum += left[i]; 273 } 274 275 expected_dc = (sum + (count >> 1)) / count; 276 277 for (r = 0; r < bs; r++) { 278 vpx_memset(dst, expected_dc, bs); 279 dst += stride; 280 } 281 } 282 intra_pred_allsizes(dc) 283 #undef intra_pred_allsizes 284 285 typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride, 286 const uint8_t *above, const uint8_t *left); 287 288 static intra_pred_fn pred[INTRA_MODES][4]; 289 static intra_pred_fn dc_pred[2][2][4]; 290 291 static void init_intra_pred_fn_ptrs(void) { 292 #define intra_pred_allsizes(l, type) \ 293 l[0] = vp9_##type##_predictor_4x4; \ 294 l[1] = vp9_##type##_predictor_8x8; \ 295 l[2] = vp9_##type##_predictor_16x16; \ 296 l[3] = vp9_##type##_predictor_32x32 297 298 intra_pred_allsizes(pred[V_PRED], v); 299 intra_pred_allsizes(pred[H_PRED], h); 300 intra_pred_allsizes(pred[D207_PRED], d207); 301 intra_pred_allsizes(pred[D45_PRED], d45); 302 intra_pred_allsizes(pred[D63_PRED], d63); 303 intra_pred_allsizes(pred[D117_PRED], d117); 304 intra_pred_allsizes(pred[D135_PRED], d135); 305 intra_pred_allsizes(pred[D153_PRED], d153); 306 intra_pred_allsizes(pred[TM_PRED], tm); 307 308 intra_pred_allsizes(dc_pred[0][0], dc_128); 309 intra_pred_allsizes(dc_pred[0][1], dc_top); 310 intra_pred_allsizes(dc_pred[1][0], dc_left); 311 intra_pred_allsizes(dc_pred[1][1], dc); 312 313 #undef intra_pred_allsizes 314 } 315 316 static void build_intra_predictors(const uint8_t *ref, int ref_stride, 317 uint8_t *dst, int dst_stride, 318 MB_PREDICTION_MODE mode, TX_SIZE tx_size, 319 int up_available, int left_available, 320 int right_available) { 321 int i; 322 DECLARE_ALIGNED_ARRAY(16, uint8_t, left_col, 64); 323 DECLARE_ALIGNED_ARRAY(16, uint8_t, above_data, 128 + 16); 324 uint8_t *above_row = above_data + 16; 325 const uint8_t *const_above_row = above_row; 326 const int bs = 4 << tx_size; 327 328 // 127 127 127 .. 127 127 127 127 127 127 329 // 129 A B .. Y Z 330 // 129 C D .. W X 331 // 129 E F .. U V 332 // 129 G H .. S T T T T T 333 // .. 334 335 once(init_intra_pred_fn_ptrs); 336 337 // left 338 if (left_available) { 339 for (i = 0; i < bs; i++) 340 left_col[i] = ref[i * ref_stride - 1]; 341 } else { 342 vpx_memset(left_col, 129, bs); 343 } 344 345 // above 346 if (up_available) { 347 const uint8_t *above_ref = ref - ref_stride; 348 if (bs == 4 && right_available && left_available) { 349 const_above_row = above_ref; 350 } else { 351 vpx_memcpy(above_row, above_ref, bs); 352 if (bs == 4 && right_available) 353 vpx_memcpy(above_row + bs, above_ref + bs, bs); 354 else 355 vpx_memset(above_row + bs, above_row[bs - 1], bs); 356 above_row[-1] = left_available ? above_ref[-1] : 129; 357 } 358 } else { 359 vpx_memset(above_row, 127, bs * 2); 360 above_row[-1] = 127; 361 } 362 363 // predict 364 if (mode == DC_PRED) { 365 dc_pred[left_available][up_available][tx_size](dst, dst_stride, 366 const_above_row, left_col); 367 } else { 368 pred[mode][tx_size](dst, dst_stride, const_above_row, left_col); 369 } 370 } 371 372 void vp9_predict_intra_block(MACROBLOCKD *xd, int block_idx, int bwl_in, 373 TX_SIZE tx_size, int mode, 374 const uint8_t *ref, int ref_stride, 375 uint8_t *dst, int dst_stride) { 376 const int bwl = bwl_in - tx_size; 377 const int wmask = (1 << bwl) - 1; 378 const int have_top = (block_idx >> bwl) || xd->up_available; 379 const int have_left = (block_idx & wmask) || xd->left_available; 380 const int have_right = ((block_idx & wmask) != wmask); 381 382 assert(bwl >= 0); 383 build_intra_predictors(ref, ref_stride, dst, dst_stride, mode, tx_size, 384 have_top, have_left, have_right); 385 } 386
