| 1 | /* |
| 2 | * DSP functions for Indeo Video Interactive codecs (Indeo4 and Indeo5) |
| 3 | * |
| 4 | * Copyright (c) 2009-2011 Maxim Poliakovski |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg 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 | * FFmpeg 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 FFmpeg; 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 | * DSP functions (inverse transforms, motion compensation, wavelet recompostions) |
| 26 | * for Indeo Video Interactive codecs. |
| 27 | */ |
| 28 | |
| 29 | #include "avcodec.h" |
| 30 | #include "ivi_common.h" |
| 31 | #include "ivi_dsp.h" |
| 32 | |
| 33 | void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, |
| 34 | const int dst_pitch) |
| 35 | { |
| 36 | int x, y, indx; |
| 37 | int32_t p0, p1, p2, p3, tmp0, tmp1, tmp2; |
| 38 | int32_t b0_1, b0_2, b1_1, b1_2, b1_3, b2_1, b2_2, b2_3, b2_4, b2_5, b2_6; |
| 39 | int32_t b3_1, b3_2, b3_3, b3_4, b3_5, b3_6, b3_7, b3_8, b3_9; |
| 40 | int32_t pitch, back_pitch; |
| 41 | const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr; |
| 42 | const int num_bands = 4; |
| 43 | |
| 44 | /* all bands should have the same pitch */ |
| 45 | pitch = plane->bands[0].pitch; |
| 46 | |
| 47 | /* pixels at the position "y-1" will be set to pixels at the "y" for the 1st iteration */ |
| 48 | back_pitch = 0; |
| 49 | |
| 50 | /* get pointers to the wavelet bands */ |
| 51 | b0_ptr = plane->bands[0].buf; |
| 52 | b1_ptr = plane->bands[1].buf; |
| 53 | b2_ptr = plane->bands[2].buf; |
| 54 | b3_ptr = plane->bands[3].buf; |
| 55 | |
| 56 | for (y = 0; y < plane->height; y += 2) { |
| 57 | |
| 58 | if (y+2 >= plane->height) |
| 59 | pitch= 0; |
| 60 | /* load storage variables with values */ |
| 61 | if (num_bands > 0) { |
| 62 | b0_1 = b0_ptr[0]; |
| 63 | b0_2 = b0_ptr[pitch]; |
| 64 | } |
| 65 | |
| 66 | if (num_bands > 1) { |
| 67 | b1_1 = b1_ptr[back_pitch]; |
| 68 | b1_2 = b1_ptr[0]; |
| 69 | b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch]; |
| 70 | } |
| 71 | |
| 72 | if (num_bands > 2) { |
| 73 | b2_2 = b2_ptr[0]; // b2[x, y ] |
| 74 | b2_3 = b2_2; // b2[x+1,y ] = b2[x,y] |
| 75 | b2_5 = b2_ptr[pitch]; // b2[x ,y+1] |
| 76 | b2_6 = b2_5; // b2[x+1,y+1] = b2[x,y+1] |
| 77 | } |
| 78 | |
| 79 | if (num_bands > 3) { |
| 80 | b3_2 = b3_ptr[back_pitch]; // b3[x ,y-1] |
| 81 | b3_3 = b3_2; // b3[x+1,y-1] = b3[x ,y-1] |
| 82 | b3_5 = b3_ptr[0]; // b3[x ,y ] |
| 83 | b3_6 = b3_5; // b3[x+1,y ] = b3[x ,y ] |
| 84 | b3_8 = b3_2 - b3_5*6 + b3_ptr[pitch]; |
| 85 | b3_9 = b3_8; |
| 86 | } |
| 87 | |
| 88 | for (x = 0, indx = 0; x < plane->width; x+=2, indx++) { |
| 89 | if (x+2 >= plane->width) { |
| 90 | b0_ptr --; |
| 91 | b1_ptr --; |
| 92 | b2_ptr --; |
| 93 | b3_ptr --; |
| 94 | } |
| 95 | |
| 96 | /* some values calculated in the previous iterations can */ |
| 97 | /* be reused in the next ones, so do appropriate copying */ |
| 98 | b2_1 = b2_2; // b2[x-1,y ] = b2[x, y ] |
| 99 | b2_2 = b2_3; // b2[x ,y ] = b2[x+1,y ] |
| 100 | b2_4 = b2_5; // b2[x-1,y+1] = b2[x ,y+1] |
| 101 | b2_5 = b2_6; // b2[x ,y+1] = b2[x+1,y+1] |
| 102 | b3_1 = b3_2; // b3[x-1,y-1] = b3[x ,y-1] |
| 103 | b3_2 = b3_3; // b3[x ,y-1] = b3[x+1,y-1] |
| 104 | b3_4 = b3_5; // b3[x-1,y ] = b3[x ,y ] |
| 105 | b3_5 = b3_6; // b3[x ,y ] = b3[x+1,y ] |
| 106 | b3_7 = b3_8; // vert_HPF(x-1) |
| 107 | b3_8 = b3_9; // vert_HPF(x ) |
| 108 | |
| 109 | p0 = p1 = p2 = p3 = 0; |
| 110 | |
| 111 | /* process the LL-band by applying LPF both vertically and horizontally */ |
| 112 | if (num_bands > 0) { |
| 113 | tmp0 = b0_1; |
| 114 | tmp2 = b0_2; |
| 115 | b0_1 = b0_ptr[indx+1]; |
| 116 | b0_2 = b0_ptr[pitch+indx+1]; |
| 117 | tmp1 = tmp0 + b0_1; |
| 118 | |
| 119 | p0 = tmp0 << 4; |
| 120 | p1 = tmp1 << 3; |
| 121 | p2 = (tmp0 + tmp2) << 3; |
| 122 | p3 = (tmp1 + tmp2 + b0_2) << 2; |
| 123 | } |
| 124 | |
| 125 | /* process the HL-band by applying HPF vertically and LPF horizontally */ |
| 126 | if (num_bands > 1) { |
| 127 | tmp0 = b1_2; |
| 128 | tmp1 = b1_1; |
| 129 | b1_2 = b1_ptr[indx+1]; |
| 130 | b1_1 = b1_ptr[back_pitch+indx+1]; |
| 131 | |
| 132 | tmp2 = tmp1 - tmp0*6 + b1_3; |
| 133 | b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch+indx+1]; |
| 134 | |
| 135 | p0 += (tmp0 + tmp1) << 3; |
| 136 | p1 += (tmp0 + tmp1 + b1_1 + b1_2) << 2; |
| 137 | p2 += tmp2 << 2; |
| 138 | p3 += (tmp2 + b1_3) << 1; |
| 139 | } |
| 140 | |
| 141 | /* process the LH-band by applying LPF vertically and HPF horizontally */ |
| 142 | if (num_bands > 2) { |
| 143 | b2_3 = b2_ptr[indx+1]; |
| 144 | b2_6 = b2_ptr[pitch+indx+1]; |
| 145 | |
| 146 | tmp0 = b2_1 + b2_2; |
| 147 | tmp1 = b2_1 - b2_2*6 + b2_3; |
| 148 | |
| 149 | p0 += tmp0 << 3; |
| 150 | p1 += tmp1 << 2; |
| 151 | p2 += (tmp0 + b2_4 + b2_5) << 2; |
| 152 | p3 += (tmp1 + b2_4 - b2_5*6 + b2_6) << 1; |
| 153 | } |
| 154 | |
| 155 | /* process the HH-band by applying HPF both vertically and horizontally */ |
| 156 | if (num_bands > 3) { |
| 157 | b3_6 = b3_ptr[indx+1]; // b3[x+1,y ] |
| 158 | b3_3 = b3_ptr[back_pitch+indx+1]; // b3[x+1,y-1] |
| 159 | |
| 160 | tmp0 = b3_1 + b3_4; |
| 161 | tmp1 = b3_2 + b3_5; |
| 162 | tmp2 = b3_3 + b3_6; |
| 163 | |
| 164 | b3_9 = b3_3 - b3_6*6 + b3_ptr[pitch+indx+1]; |
| 165 | |
| 166 | p0 += (tmp0 + tmp1) << 2; |
| 167 | p1 += (tmp0 - tmp1*6 + tmp2) << 1; |
| 168 | p2 += (b3_7 + b3_8) << 1; |
| 169 | p3 += b3_7 - b3_8*6 + b3_9; |
| 170 | } |
| 171 | |
| 172 | /* output four pixels */ |
| 173 | dst[x] = av_clip_uint8((p0 >> 6) + 128); |
| 174 | dst[x+1] = av_clip_uint8((p1 >> 6) + 128); |
| 175 | dst[dst_pitch+x] = av_clip_uint8((p2 >> 6) + 128); |
| 176 | dst[dst_pitch+x+1] = av_clip_uint8((p3 >> 6) + 128); |
| 177 | }// for x |
| 178 | |
| 179 | dst += dst_pitch << 1; |
| 180 | |
| 181 | back_pitch = -pitch; |
| 182 | |
| 183 | b0_ptr += pitch + 1; |
| 184 | b1_ptr += pitch + 1; |
| 185 | b2_ptr += pitch + 1; |
| 186 | b3_ptr += pitch + 1; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, |
| 191 | const int dst_pitch) |
| 192 | { |
| 193 | int x, y, indx, b0, b1, b2, b3, p0, p1, p2, p3; |
| 194 | const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr; |
| 195 | int32_t pitch; |
| 196 | |
| 197 | /* all bands should have the same pitch */ |
| 198 | pitch = plane->bands[0].pitch; |
| 199 | |
| 200 | /* get pointers to the wavelet bands */ |
| 201 | b0_ptr = plane->bands[0].buf; |
| 202 | b1_ptr = plane->bands[1].buf; |
| 203 | b2_ptr = plane->bands[2].buf; |
| 204 | b3_ptr = plane->bands[3].buf; |
| 205 | |
| 206 | for (y = 0; y < plane->height; y += 2) { |
| 207 | for (x = 0, indx = 0; x < plane->width; x += 2, indx++) { |
| 208 | /* load coefficients */ |
| 209 | b0 = b0_ptr[indx]; //should be: b0 = (num_bands > 0) ? b0_ptr[indx] : 0; |
| 210 | b1 = b1_ptr[indx]; //should be: b1 = (num_bands > 1) ? b1_ptr[indx] : 0; |
| 211 | b2 = b2_ptr[indx]; //should be: b2 = (num_bands > 2) ? b2_ptr[indx] : 0; |
| 212 | b3 = b3_ptr[indx]; //should be: b3 = (num_bands > 3) ? b3_ptr[indx] : 0; |
| 213 | |
| 214 | /* haar wavelet recomposition */ |
| 215 | p0 = (b0 + b1 + b2 + b3 + 2) >> 2; |
| 216 | p1 = (b0 + b1 - b2 - b3 + 2) >> 2; |
| 217 | p2 = (b0 - b1 + b2 - b3 + 2) >> 2; |
| 218 | p3 = (b0 - b1 - b2 + b3 + 2) >> 2; |
| 219 | |
| 220 | /* bias, convert and output four pixels */ |
| 221 | dst[x] = av_clip_uint8(p0 + 128); |
| 222 | dst[x + 1] = av_clip_uint8(p1 + 128); |
| 223 | dst[dst_pitch + x] = av_clip_uint8(p2 + 128); |
| 224 | dst[dst_pitch + x + 1] = av_clip_uint8(p3 + 128); |
| 225 | }// for x |
| 226 | |
| 227 | dst += dst_pitch << 1; |
| 228 | |
| 229 | b0_ptr += pitch; |
| 230 | b1_ptr += pitch; |
| 231 | b2_ptr += pitch; |
| 232 | b3_ptr += pitch; |
| 233 | }// for y |
| 234 | } |
| 235 | |
| 236 | /** butterfly operation for the inverse Haar transform */ |
| 237 | #define IVI_HAAR_BFLY(s1, s2, o1, o2, t) \ |
| 238 | t = ((s1) - (s2)) >> 1;\ |
| 239 | o1 = ((s1) + (s2)) >> 1;\ |
| 240 | o2 = (t);\ |
| 241 | |
| 242 | /** inverse 8-point Haar transform */ |
| 243 | #define INV_HAAR8(s1, s5, s3, s7, s2, s4, s6, s8,\ |
| 244 | d1, d2, d3, d4, d5, d6, d7, d8,\ |
| 245 | t0, t1, t2, t3, t4, t5, t6, t7, t8) {\ |
| 246 | t1 = (s1) << 1; t5 = (s5) << 1;\ |
| 247 | IVI_HAAR_BFLY(t1, t5, t1, t5, t0); IVI_HAAR_BFLY(t1, s3, t1, t3, t0);\ |
| 248 | IVI_HAAR_BFLY(t5, s7, t5, t7, t0); IVI_HAAR_BFLY(t1, s2, t1, t2, t0);\ |
| 249 | IVI_HAAR_BFLY(t3, s4, t3, t4, t0); IVI_HAAR_BFLY(t5, s6, t5, t6, t0);\ |
| 250 | IVI_HAAR_BFLY(t7, s8, t7, t8, t0);\ |
| 251 | d1 = COMPENSATE(t1);\ |
| 252 | d2 = COMPENSATE(t2);\ |
| 253 | d3 = COMPENSATE(t3);\ |
| 254 | d4 = COMPENSATE(t4);\ |
| 255 | d5 = COMPENSATE(t5);\ |
| 256 | d6 = COMPENSATE(t6);\ |
| 257 | d7 = COMPENSATE(t7);\ |
| 258 | d8 = COMPENSATE(t8); } |
| 259 | |
| 260 | /** inverse 4-point Haar transform */ |
| 261 | #define INV_HAAR4(s1, s3, s5, s7, d1, d2, d3, d4, t0, t1, t2, t3, t4) {\ |
| 262 | IVI_HAAR_BFLY(s1, s3, t0, t1, t4);\ |
| 263 | IVI_HAAR_BFLY(t0, s5, t2, t3, t4);\ |
| 264 | d1 = COMPENSATE(t2);\ |
| 265 | d2 = COMPENSATE(t3);\ |
| 266 | IVI_HAAR_BFLY(t1, s7, t2, t3, t4);\ |
| 267 | d3 = COMPENSATE(t2);\ |
| 268 | d4 = COMPENSATE(t3); } |
| 269 | |
| 270 | void ff_ivi_inverse_haar_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 271 | const uint8_t *flags) |
| 272 | { |
| 273 | int i, shift, sp1, sp2, sp3, sp4; |
| 274 | const int32_t *src; |
| 275 | int32_t *dst; |
| 276 | int tmp[64]; |
| 277 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 278 | |
| 279 | /* apply the InvHaar8 to all columns */ |
| 280 | #define COMPENSATE(x) (x) |
| 281 | src = in; |
| 282 | dst = tmp; |
| 283 | for (i = 0; i < 8; i++) { |
| 284 | if (flags[i]) { |
| 285 | /* pre-scaling */ |
| 286 | shift = !(i & 4); |
| 287 | sp1 = src[ 0] << shift; |
| 288 | sp2 = src[ 8] << shift; |
| 289 | sp3 = src[16] << shift; |
| 290 | sp4 = src[24] << shift; |
| 291 | INV_HAAR8( sp1, sp2, sp3, sp4, |
| 292 | src[32], src[40], src[48], src[56], |
| 293 | dst[ 0], dst[ 8], dst[16], dst[24], |
| 294 | dst[32], dst[40], dst[48], dst[56], |
| 295 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 296 | } else |
| 297 | dst[ 0] = dst[ 8] = dst[16] = dst[24] = |
| 298 | dst[32] = dst[40] = dst[48] = dst[56] = 0; |
| 299 | |
| 300 | src++; |
| 301 | dst++; |
| 302 | } |
| 303 | #undef COMPENSATE |
| 304 | |
| 305 | /* apply the InvHaar8 to all rows */ |
| 306 | #define COMPENSATE(x) (x) |
| 307 | src = tmp; |
| 308 | for (i = 0; i < 8; i++) { |
| 309 | if ( !src[0] && !src[1] && !src[2] && !src[3] |
| 310 | && !src[4] && !src[5] && !src[6] && !src[7]) { |
| 311 | memset(out, 0, 8 * sizeof(out[0])); |
| 312 | } else { |
| 313 | INV_HAAR8(src[0], src[1], src[2], src[3], |
| 314 | src[4], src[5], src[6], src[7], |
| 315 | out[0], out[1], out[2], out[3], |
| 316 | out[4], out[5], out[6], out[7], |
| 317 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 318 | } |
| 319 | src += 8; |
| 320 | out += pitch; |
| 321 | } |
| 322 | #undef COMPENSATE |
| 323 | } |
| 324 | |
| 325 | void ff_ivi_row_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 326 | const uint8_t *flags) |
| 327 | { |
| 328 | int i; |
| 329 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 330 | |
| 331 | /* apply the InvHaar8 to all rows */ |
| 332 | #define COMPENSATE(x) (x) |
| 333 | for (i = 0; i < 8; i++) { |
| 334 | if ( !in[0] && !in[1] && !in[2] && !in[3] |
| 335 | && !in[4] && !in[5] && !in[6] && !in[7]) { |
| 336 | memset(out, 0, 8 * sizeof(out[0])); |
| 337 | } else { |
| 338 | INV_HAAR8(in[0], in[1], in[2], in[3], |
| 339 | in[4], in[5], in[6], in[7], |
| 340 | out[0], out[1], out[2], out[3], |
| 341 | out[4], out[5], out[6], out[7], |
| 342 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 343 | } |
| 344 | in += 8; |
| 345 | out += pitch; |
| 346 | } |
| 347 | #undef COMPENSATE |
| 348 | } |
| 349 | |
| 350 | void ff_ivi_col_haar8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 351 | const uint8_t *flags) |
| 352 | { |
| 353 | int i; |
| 354 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 355 | |
| 356 | /* apply the InvHaar8 to all columns */ |
| 357 | #define COMPENSATE(x) (x) |
| 358 | for (i = 0; i < 8; i++) { |
| 359 | if (flags[i]) { |
| 360 | INV_HAAR8(in[ 0], in[ 8], in[16], in[24], |
| 361 | in[32], in[40], in[48], in[56], |
| 362 | out[0 * pitch], out[1 * pitch], |
| 363 | out[2 * pitch], out[3 * pitch], |
| 364 | out[4 * pitch], out[5 * pitch], |
| 365 | out[6 * pitch], out[7 * pitch], |
| 366 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 367 | } else |
| 368 | out[0 * pitch] = out[1 * pitch] = |
| 369 | out[2 * pitch] = out[3 * pitch] = |
| 370 | out[4 * pitch] = out[5 * pitch] = |
| 371 | out[6 * pitch] = out[7 * pitch] = 0; |
| 372 | |
| 373 | in++; |
| 374 | out++; |
| 375 | } |
| 376 | #undef COMPENSATE |
| 377 | } |
| 378 | |
| 379 | void ff_ivi_inverse_haar_4x4(const int32_t *in, int16_t *out, uint32_t pitch, |
| 380 | const uint8_t *flags) |
| 381 | { |
| 382 | int i, shift, sp1, sp2; |
| 383 | const int32_t *src; |
| 384 | int32_t *dst; |
| 385 | int tmp[16]; |
| 386 | int t0, t1, t2, t3, t4; |
| 387 | |
| 388 | /* apply the InvHaar4 to all columns */ |
| 389 | #define COMPENSATE(x) (x) |
| 390 | src = in; |
| 391 | dst = tmp; |
| 392 | for (i = 0; i < 4; i++) { |
| 393 | if (flags[i]) { |
| 394 | /* pre-scaling */ |
| 395 | shift = !(i & 2); |
| 396 | sp1 = src[0] << shift; |
| 397 | sp2 = src[4] << shift; |
| 398 | INV_HAAR4( sp1, sp2, src[8], src[12], |
| 399 | dst[0], dst[4], dst[8], dst[12], |
| 400 | t0, t1, t2, t3, t4); |
| 401 | } else |
| 402 | dst[0] = dst[4] = dst[8] = dst[12] = 0; |
| 403 | |
| 404 | src++; |
| 405 | dst++; |
| 406 | } |
| 407 | #undef COMPENSATE |
| 408 | |
| 409 | /* apply the InvHaar8 to all rows */ |
| 410 | #define COMPENSATE(x) (x) |
| 411 | src = tmp; |
| 412 | for (i = 0; i < 4; i++) { |
| 413 | if (!src[0] && !src[1] && !src[2] && !src[3]) { |
| 414 | memset(out, 0, 4 * sizeof(out[0])); |
| 415 | } else { |
| 416 | INV_HAAR4(src[0], src[1], src[2], src[3], |
| 417 | out[0], out[1], out[2], out[3], |
| 418 | t0, t1, t2, t3, t4); |
| 419 | } |
| 420 | src += 4; |
| 421 | out += pitch; |
| 422 | } |
| 423 | #undef COMPENSATE |
| 424 | } |
| 425 | |
| 426 | void ff_ivi_row_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
| 427 | const uint8_t *flags) |
| 428 | { |
| 429 | int i; |
| 430 | int t0, t1, t2, t3, t4; |
| 431 | |
| 432 | /* apply the InvHaar4 to all rows */ |
| 433 | #define COMPENSATE(x) (x) |
| 434 | for (i = 0; i < 4; i++) { |
| 435 | if (!in[0] && !in[1] && !in[2] && !in[3]) { |
| 436 | memset(out, 0, 4 * sizeof(out[0])); |
| 437 | } else { |
| 438 | INV_HAAR4(in[0], in[1], in[2], in[3], |
| 439 | out[0], out[1], out[2], out[3], |
| 440 | t0, t1, t2, t3, t4); |
| 441 | } |
| 442 | in += 4; |
| 443 | out += pitch; |
| 444 | } |
| 445 | #undef COMPENSATE |
| 446 | } |
| 447 | |
| 448 | void ff_ivi_col_haar4(const int32_t *in, int16_t *out, uint32_t pitch, |
| 449 | const uint8_t *flags) |
| 450 | { |
| 451 | int i; |
| 452 | int t0, t1, t2, t3, t4; |
| 453 | |
| 454 | /* apply the InvHaar8 to all columns */ |
| 455 | #define COMPENSATE(x) (x) |
| 456 | for (i = 0; i < 4; i++) { |
| 457 | if (flags[i]) { |
| 458 | INV_HAAR4(in[0], in[4], in[8], in[12], |
| 459 | out[0 * pitch], out[1 * pitch], |
| 460 | out[2 * pitch], out[3 * pitch], |
| 461 | t0, t1, t2, t3, t4); |
| 462 | } else |
| 463 | out[0 * pitch] = out[1 * pitch] = |
| 464 | out[2 * pitch] = out[3 * pitch] = 0; |
| 465 | |
| 466 | in++; |
| 467 | out++; |
| 468 | } |
| 469 | #undef COMPENSATE |
| 470 | } |
| 471 | |
| 472 | void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch, |
| 473 | int blk_size) |
| 474 | { |
| 475 | int x, y; |
| 476 | int16_t dc_coeff; |
| 477 | |
| 478 | dc_coeff = (*in + 0) >> 3; |
| 479 | |
| 480 | for (y = 0; y < blk_size; out += pitch, y++) { |
| 481 | for (x = 0; x < blk_size; x++) |
| 482 | out[x] = dc_coeff; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | /** butterfly operation for the inverse slant transform */ |
| 487 | #define IVI_SLANT_BFLY(s1, s2, o1, o2, t) \ |
| 488 | t = (s1) - (s2);\ |
| 489 | o1 = (s1) + (s2);\ |
| 490 | o2 = (t);\ |
| 491 | |
| 492 | /** This is a reflection a,b = 1/2, 5/4 for the inverse slant transform */ |
| 493 | #define IVI_IREFLECT(s1, s2, o1, o2, t) \ |
| 494 | t = (((s1) + (s2)*2 + 2) >> 2) + (s1);\ |
| 495 | o2 = (((s1)*2 - (s2) + 2) >> 2) - (s2);\ |
| 496 | o1 = (t);\ |
| 497 | |
| 498 | /** This is a reflection a,b = 1/2, 7/8 for the inverse slant transform */ |
| 499 | #define IVI_SLANT_PART4(s1, s2, o1, o2, t) \ |
| 500 | t = (s2) + (((s1)*4 - (s2) + 4) >> 3);\ |
| 501 | o2 = (s1) + ((-(s1) - (s2)*4 + 4) >> 3);\ |
| 502 | o1 = (t);\ |
| 503 | |
| 504 | /** inverse slant8 transform */ |
| 505 | #define IVI_INV_SLANT8(s1, s4, s8, s5, s2, s6, s3, s7,\ |
| 506 | d1, d2, d3, d4, d5, d6, d7, d8,\ |
| 507 | t0, t1, t2, t3, t4, t5, t6, t7, t8) {\ |
| 508 | IVI_SLANT_PART4(s4, s5, t4, t5, t0);\ |
| 509 | \ |
| 510 | IVI_SLANT_BFLY(s1, t5, t1, t5, t0); IVI_SLANT_BFLY(s2, s6, t2, t6, t0);\ |
| 511 | IVI_SLANT_BFLY(s7, s3, t7, t3, t0); IVI_SLANT_BFLY(t4, s8, t4, t8, t0);\ |
| 512 | \ |
| 513 | IVI_SLANT_BFLY(t1, t2, t1, t2, t0); IVI_IREFLECT (t4, t3, t4, t3, t0);\ |
| 514 | IVI_SLANT_BFLY(t5, t6, t5, t6, t0); IVI_IREFLECT (t8, t7, t8, t7, t0);\ |
| 515 | IVI_SLANT_BFLY(t1, t4, t1, t4, t0); IVI_SLANT_BFLY(t2, t3, t2, t3, t0);\ |
| 516 | IVI_SLANT_BFLY(t5, t8, t5, t8, t0); IVI_SLANT_BFLY(t6, t7, t6, t7, t0);\ |
| 517 | d1 = COMPENSATE(t1);\ |
| 518 | d2 = COMPENSATE(t2);\ |
| 519 | d3 = COMPENSATE(t3);\ |
| 520 | d4 = COMPENSATE(t4);\ |
| 521 | d5 = COMPENSATE(t5);\ |
| 522 | d6 = COMPENSATE(t6);\ |
| 523 | d7 = COMPENSATE(t7);\ |
| 524 | d8 = COMPENSATE(t8);} |
| 525 | |
| 526 | /** inverse slant4 transform */ |
| 527 | #define IVI_INV_SLANT4(s1, s4, s2, s3, d1, d2, d3, d4, t0, t1, t2, t3, t4) {\ |
| 528 | IVI_SLANT_BFLY(s1, s2, t1, t2, t0); IVI_IREFLECT (s4, s3, t4, t3, t0);\ |
| 529 | \ |
| 530 | IVI_SLANT_BFLY(t1, t4, t1, t4, t0); IVI_SLANT_BFLY(t2, t3, t2, t3, t0);\ |
| 531 | d1 = COMPENSATE(t1);\ |
| 532 | d2 = COMPENSATE(t2);\ |
| 533 | d3 = COMPENSATE(t3);\ |
| 534 | d4 = COMPENSATE(t4);} |
| 535 | |
| 536 | void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 537 | { |
| 538 | int i; |
| 539 | const int32_t *src; |
| 540 | int32_t *dst; |
| 541 | int tmp[64]; |
| 542 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 543 | |
| 544 | #define COMPENSATE(x) (x) |
| 545 | src = in; |
| 546 | dst = tmp; |
| 547 | for (i = 0; i < 8; i++) { |
| 548 | if (flags[i]) { |
| 549 | IVI_INV_SLANT8(src[0], src[8], src[16], src[24], src[32], src[40], src[48], src[56], |
| 550 | dst[0], dst[8], dst[16], dst[24], dst[32], dst[40], dst[48], dst[56], |
| 551 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 552 | } else |
| 553 | dst[0] = dst[8] = dst[16] = dst[24] = dst[32] = dst[40] = dst[48] = dst[56] = 0; |
| 554 | |
| 555 | src++; |
| 556 | dst++; |
| 557 | } |
| 558 | #undef COMPENSATE |
| 559 | |
| 560 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 561 | src = tmp; |
| 562 | for (i = 0; i < 8; i++) { |
| 563 | if (!src[0] && !src[1] && !src[2] && !src[3] && !src[4] && !src[5] && !src[6] && !src[7]) { |
| 564 | memset(out, 0, 8*sizeof(out[0])); |
| 565 | } else { |
| 566 | IVI_INV_SLANT8(src[0], src[1], src[2], src[3], src[4], src[5], src[6], src[7], |
| 567 | out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7], |
| 568 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 569 | } |
| 570 | src += 8; |
| 571 | out += pitch; |
| 572 | } |
| 573 | #undef COMPENSATE |
| 574 | } |
| 575 | |
| 576 | void ff_ivi_inverse_slant_4x4(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 577 | { |
| 578 | int i; |
| 579 | const int32_t *src; |
| 580 | int32_t *dst; |
| 581 | int tmp[16]; |
| 582 | int t0, t1, t2, t3, t4; |
| 583 | |
| 584 | #define COMPENSATE(x) (x) |
| 585 | src = in; |
| 586 | dst = tmp; |
| 587 | for (i = 0; i < 4; i++) { |
| 588 | if (flags[i]) { |
| 589 | IVI_INV_SLANT4(src[0], src[4], src[8], src[12], |
| 590 | dst[0], dst[4], dst[8], dst[12], |
| 591 | t0, t1, t2, t3, t4); |
| 592 | } else |
| 593 | dst[0] = dst[4] = dst[8] = dst[12] = 0; |
| 594 | |
| 595 | src++; |
| 596 | dst++; |
| 597 | } |
| 598 | #undef COMPENSATE |
| 599 | |
| 600 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 601 | src = tmp; |
| 602 | for (i = 0; i < 4; i++) { |
| 603 | if (!src[0] && !src[1] && !src[2] && !src[3]) { |
| 604 | out[0] = out[1] = out[2] = out[3] = 0; |
| 605 | } else { |
| 606 | IVI_INV_SLANT4(src[0], src[1], src[2], src[3], |
| 607 | out[0], out[1], out[2], out[3], |
| 608 | t0, t1, t2, t3, t4); |
| 609 | } |
| 610 | src += 4; |
| 611 | out += pitch; |
| 612 | } |
| 613 | #undef COMPENSATE |
| 614 | } |
| 615 | |
| 616 | void ff_ivi_dc_slant_2d(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
| 617 | { |
| 618 | int x, y; |
| 619 | int16_t dc_coeff; |
| 620 | |
| 621 | dc_coeff = (*in + 1) >> 1; |
| 622 | |
| 623 | for (y = 0; y < blk_size; out += pitch, y++) { |
| 624 | for (x = 0; x < blk_size; x++) |
| 625 | out[x] = dc_coeff; |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 630 | { |
| 631 | int i; |
| 632 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 633 | |
| 634 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 635 | for (i = 0; i < 8; i++) { |
| 636 | if (!in[0] && !in[1] && !in[2] && !in[3] && !in[4] && !in[5] && !in[6] && !in[7]) { |
| 637 | memset(out, 0, 8*sizeof(out[0])); |
| 638 | } else { |
| 639 | IVI_INV_SLANT8( in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7], |
| 640 | out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7], |
| 641 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 642 | } |
| 643 | in += 8; |
| 644 | out += pitch; |
| 645 | } |
| 646 | #undef COMPENSATE |
| 647 | } |
| 648 | |
| 649 | void ff_ivi_dc_row_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
| 650 | { |
| 651 | int x, y; |
| 652 | int16_t dc_coeff; |
| 653 | |
| 654 | dc_coeff = (*in + 1) >> 1; |
| 655 | |
| 656 | for (x = 0; x < blk_size; x++) |
| 657 | out[x] = dc_coeff; |
| 658 | |
| 659 | out += pitch; |
| 660 | |
| 661 | for (y = 1; y < blk_size; out += pitch, y++) { |
| 662 | for (x = 0; x < blk_size; x++) |
| 663 | out[x] = 0; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 668 | { |
| 669 | int i, row2, row4, row8; |
| 670 | int t0, t1, t2, t3, t4, t5, t6, t7, t8; |
| 671 | |
| 672 | row2 = pitch << 1; |
| 673 | row4 = pitch << 2; |
| 674 | row8 = pitch << 3; |
| 675 | |
| 676 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 677 | for (i = 0; i < 8; i++) { |
| 678 | if (flags[i]) { |
| 679 | IVI_INV_SLANT8(in[0], in[8], in[16], in[24], in[32], in[40], in[48], in[56], |
| 680 | out[0], out[pitch], out[row2], out[row2 + pitch], out[row4], |
| 681 | out[row4 + pitch], out[row4 + row2], out[row8 - pitch], |
| 682 | t0, t1, t2, t3, t4, t5, t6, t7, t8); |
| 683 | } else { |
| 684 | out[0] = out[pitch] = out[row2] = out[row2 + pitch] = out[row4] = |
| 685 | out[row4 + pitch] = out[row4 + row2] = out[row8 - pitch] = 0; |
| 686 | } |
| 687 | |
| 688 | in++; |
| 689 | out++; |
| 690 | } |
| 691 | #undef COMPENSATE |
| 692 | } |
| 693 | |
| 694 | void ff_ivi_dc_col_slant(const int32_t *in, int16_t *out, uint32_t pitch, int blk_size) |
| 695 | { |
| 696 | int x, y; |
| 697 | int16_t dc_coeff; |
| 698 | |
| 699 | dc_coeff = (*in + 1) >> 1; |
| 700 | |
| 701 | for (y = 0; y < blk_size; out += pitch, y++) { |
| 702 | out[0] = dc_coeff; |
| 703 | for (x = 1; x < blk_size; x++) |
| 704 | out[x] = 0; |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 709 | { |
| 710 | int i; |
| 711 | int t0, t1, t2, t3, t4; |
| 712 | |
| 713 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 714 | for (i = 0; i < 4; i++) { |
| 715 | if (!in[0] && !in[1] && !in[2] && !in[3]) { |
| 716 | memset(out, 0, 4*sizeof(out[0])); |
| 717 | } else { |
| 718 | IVI_INV_SLANT4( in[0], in[1], in[2], in[3], |
| 719 | out[0], out[1], out[2], out[3], |
| 720 | t0, t1, t2, t3, t4); |
| 721 | } |
| 722 | in += 4; |
| 723 | out += pitch; |
| 724 | } |
| 725 | #undef COMPENSATE |
| 726 | } |
| 727 | |
| 728 | void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const uint8_t *flags) |
| 729 | { |
| 730 | int i, row2; |
| 731 | int t0, t1, t2, t3, t4; |
| 732 | |
| 733 | row2 = pitch << 1; |
| 734 | |
| 735 | #define COMPENSATE(x) (((x) + 1)>>1) |
| 736 | for (i = 0; i < 4; i++) { |
| 737 | if (flags[i]) { |
| 738 | IVI_INV_SLANT4(in[0], in[4], in[8], in[12], |
| 739 | out[0], out[pitch], out[row2], out[row2 + pitch], |
| 740 | t0, t1, t2, t3, t4); |
| 741 | } else { |
| 742 | out[0] = out[pitch] = out[row2] = out[row2 + pitch] = 0; |
| 743 | } |
| 744 | |
| 745 | in++; |
| 746 | out++; |
| 747 | } |
| 748 | #undef COMPENSATE |
| 749 | } |
| 750 | |
| 751 | void ff_ivi_put_pixels_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 752 | const uint8_t *flags) |
| 753 | { |
| 754 | int x, y; |
| 755 | |
| 756 | for (y = 0; y < 8; out += pitch, in += 8, y++) |
| 757 | for (x = 0; x < 8; x++) |
| 758 | out[x] = in[x]; |
| 759 | } |
| 760 | |
| 761 | void ff_ivi_put_dc_pixel_8x8(const int32_t *in, int16_t *out, uint32_t pitch, |
| 762 | int blk_size) |
| 763 | { |
| 764 | int y; |
| 765 | |
| 766 | out[0] = in[0]; |
| 767 | memset(out + 1, 0, 7*sizeof(out[0])); |
| 768 | out += pitch; |
| 769 | |
| 770 | for (y = 1; y < 8; out += pitch, y++) |
| 771 | memset(out, 0, 8*sizeof(out[0])); |
| 772 | } |
| 773 | |
| 774 | #define IVI_MC_TEMPLATE(size, suffix, OP) \ |
| 775 | static void ivi_mc_ ## size ##x## size ## suffix(int16_t *buf, \ |
| 776 | uint32_t dpitch, \ |
| 777 | const int16_t *ref_buf, \ |
| 778 | uint32_t pitch, int mc_type) \ |
| 779 | { \ |
| 780 | int i, j; \ |
| 781 | const int16_t *wptr; \ |
| 782 | \ |
| 783 | switch (mc_type) { \ |
| 784 | case 0: /* fullpel (no interpolation) */ \ |
| 785 | for (i = 0; i < size; i++, buf += dpitch, ref_buf += pitch) { \ |
| 786 | for (j = 0; j < size; j++) {\ |
| 787 | OP(buf[j], ref_buf[j]); \ |
| 788 | } \ |
| 789 | } \ |
| 790 | break; \ |
| 791 | case 1: /* horizontal halfpel interpolation */ \ |
| 792 | for (i = 0; i < size; i++, buf += dpitch, ref_buf += pitch) \ |
| 793 | for (j = 0; j < size; j++) \ |
| 794 | OP(buf[j], (ref_buf[j] + ref_buf[j+1]) >> 1); \ |
| 795 | break; \ |
| 796 | case 2: /* vertical halfpel interpolation */ \ |
| 797 | wptr = ref_buf + pitch; \ |
| 798 | for (i = 0; i < size; i++, buf += dpitch, wptr += pitch, ref_buf += pitch) \ |
| 799 | for (j = 0; j < size; j++) \ |
| 800 | OP(buf[j], (ref_buf[j] + wptr[j]) >> 1); \ |
| 801 | break; \ |
| 802 | case 3: /* vertical and horizontal halfpel interpolation */ \ |
| 803 | wptr = ref_buf + pitch; \ |
| 804 | for (i = 0; i < size; i++, buf += dpitch, wptr += pitch, ref_buf += pitch) \ |
| 805 | for (j = 0; j < size; j++) \ |
| 806 | OP(buf[j], (ref_buf[j] + ref_buf[j+1] + wptr[j] + wptr[j+1]) >> 2); \ |
| 807 | break; \ |
| 808 | } \ |
| 809 | } \ |
| 810 | \ |
| 811 | void ff_ivi_mc_ ## size ##x## size ## suffix(int16_t *buf, const int16_t *ref_buf, \ |
| 812 | uint32_t pitch, int mc_type) \ |
| 813 | { \ |
| 814 | ivi_mc_ ## size ##x## size ## suffix(buf, pitch, ref_buf, pitch, mc_type); \ |
| 815 | } \ |
| 816 | |
| 817 | #define IVI_MC_AVG_TEMPLATE(size, suffix, OP) \ |
| 818 | void ff_ivi_mc_avg_ ## size ##x## size ## suffix(int16_t *buf, \ |
| 819 | const int16_t *ref_buf, \ |
| 820 | const int16_t *ref_buf2, \ |
| 821 | uint32_t pitch, \ |
| 822 | int mc_type, int mc_type2) \ |
| 823 | { \ |
| 824 | int16_t tmp[size * size]; \ |
| 825 | int i, j; \ |
| 826 | \ |
| 827 | ivi_mc_ ## size ##x## size ## _no_delta(tmp, size, ref_buf, pitch, mc_type); \ |
| 828 | ivi_mc_ ## size ##x## size ## _delta(tmp, size, ref_buf2, pitch, mc_type2); \ |
| 829 | for (i = 0; i < size; i++, buf += pitch) { \ |
| 830 | for (j = 0; j < size; j++) {\ |
| 831 | OP(buf[j], tmp[i * size + j] >> 1); \ |
| 832 | } \ |
| 833 | } \ |
| 834 | } \ |
| 835 | |
| 836 | #define OP_PUT(a, b) (a) = (b) |
| 837 | #define OP_ADD(a, b) (a) += (b) |
| 838 | |
| 839 | IVI_MC_TEMPLATE(8, _no_delta, OP_PUT) |
| 840 | IVI_MC_TEMPLATE(8, _delta, OP_ADD) |
| 841 | IVI_MC_TEMPLATE(4, _no_delta, OP_PUT) |
| 842 | IVI_MC_TEMPLATE(4, _delta, OP_ADD) |
| 843 | IVI_MC_AVG_TEMPLATE(8, _no_delta, OP_PUT) |
| 844 | IVI_MC_AVG_TEMPLATE(8, _delta, OP_ADD) |
| 845 | IVI_MC_AVG_TEMPLATE(4, _no_delta, OP_PUT) |
| 846 | IVI_MC_AVG_TEMPLATE(4, _delta, OP_ADD) |