| 1 | /* |
| 2 | * Copyright (c) 2002 Brian Foley |
| 3 | * Copyright (c) 2002 Dieter Shirley |
| 4 | * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org> |
| 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 | #include "config.h" |
| 24 | |
| 25 | #if HAVE_ALTIVEC_H |
| 26 | #include <altivec.h> |
| 27 | #endif |
| 28 | |
| 29 | #include "libavutil/attributes.h" |
| 30 | #include "libavutil/cpu.h" |
| 31 | #include "libavutil/ppc/cpu.h" |
| 32 | #include "libavutil/ppc/types_altivec.h" |
| 33 | #include "libavutil/ppc/util_altivec.h" |
| 34 | #include "libavcodec/hpeldsp.h" |
| 35 | #include "hpeldsp_altivec.h" |
| 36 | |
| 37 | #if HAVE_ALTIVEC |
| 38 | /* next one assumes that ((line_size % 16) == 0) */ |
| 39 | void ff_put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) |
| 40 | { |
| 41 | register vector unsigned char pixelsv1; |
| 42 | register vector unsigned char pixelsv1B; |
| 43 | register vector unsigned char pixelsv1C; |
| 44 | register vector unsigned char pixelsv1D; |
| 45 | |
| 46 | int i; |
| 47 | register ptrdiff_t line_size_2 = line_size << 1; |
| 48 | register ptrdiff_t line_size_3 = line_size + line_size_2; |
| 49 | register ptrdiff_t line_size_4 = line_size << 2; |
| 50 | |
| 51 | // hand-unrolling the loop by 4 gains about 15% |
| 52 | // mininum execution time goes from 74 to 60 cycles |
| 53 | // it's faster than -funroll-loops, but using |
| 54 | // -funroll-loops w/ this is bad - 74 cycles again. |
| 55 | // all this is on a 7450, tuning for the 7450 |
| 56 | for (i = 0; i < h; i += 4) { |
| 57 | pixelsv1 = unaligned_load( 0, pixels); |
| 58 | pixelsv1B = unaligned_load(line_size, pixels); |
| 59 | pixelsv1C = unaligned_load(line_size_2, pixels); |
| 60 | pixelsv1D = unaligned_load(line_size_3, pixels); |
| 61 | VEC_ST(pixelsv1, 0, (unsigned char*)block); |
| 62 | VEC_ST(pixelsv1B, line_size, (unsigned char*)block); |
| 63 | VEC_ST(pixelsv1C, line_size_2, (unsigned char*)block); |
| 64 | VEC_ST(pixelsv1D, line_size_3, (unsigned char*)block); |
| 65 | pixels+=line_size_4; |
| 66 | block +=line_size_4; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | /* next one assumes that ((line_size % 16) == 0) */ |
| 71 | #define op_avg(a,b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) ) |
| 72 | void ff_avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) |
| 73 | { |
| 74 | register vector unsigned char pixelsv, blockv; |
| 75 | |
| 76 | int i; |
| 77 | for (i = 0; i < h; i++) { |
| 78 | blockv = vec_ld(0, block); |
| 79 | pixelsv = VEC_LD( 0, pixels); |
| 80 | blockv = vec_avg(blockv,pixelsv); |
| 81 | vec_st(blockv, 0, (unsigned char*)block); |
| 82 | pixels+=line_size; |
| 83 | block +=line_size; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | /* next one assumes that ((line_size % 8) == 0) */ |
| 88 | static void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h) |
| 89 | { |
| 90 | register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv; |
| 91 | int i; |
| 92 | |
| 93 | for (i = 0; i < h; i++) { |
| 94 | /* block is 8 bytes-aligned, so we're either in the |
| 95 | left block (16 bytes-aligned) or in the right block (not) */ |
| 96 | int rightside = ((unsigned long)block & 0x0000000F); |
| 97 | |
| 98 | blockv = vec_ld(0, block); |
| 99 | pixelsv = VEC_LD( 0, pixels); |
| 100 | |
| 101 | if (rightside) { |
| 102 | pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1)); |
| 103 | } else { |
| 104 | pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3)); |
| 105 | } |
| 106 | |
| 107 | blockv = vec_avg(blockv, pixelsv); |
| 108 | |
| 109 | vec_st(blockv, 0, block); |
| 110 | |
| 111 | pixels += line_size; |
| 112 | block += line_size; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | /* next one assumes that ((line_size % 8) == 0) */ |
| 117 | static void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) |
| 118 | { |
| 119 | register int i; |
| 120 | register vector unsigned char pixelsv1, pixelsv2, pixelsavg; |
| 121 | register vector unsigned char blockv; |
| 122 | register vector unsigned short pixelssum1, pixelssum2, temp3; |
| 123 | register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0); |
| 124 | register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2); |
| 125 | |
| 126 | pixelsv1 = VEC_LD(0, pixels); |
| 127 | pixelsv2 = VEC_LD(1, pixels); |
| 128 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 129 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 130 | |
| 131 | pixelssum1 = vec_add((vector unsigned short)pixelsv1, |
| 132 | (vector unsigned short)pixelsv2); |
| 133 | pixelssum1 = vec_add(pixelssum1, vctwo); |
| 134 | |
| 135 | for (i = 0; i < h ; i++) { |
| 136 | int rightside = ((unsigned long)block & 0x0000000F); |
| 137 | blockv = vec_ld(0, block); |
| 138 | |
| 139 | pixelsv1 = unaligned_load(line_size, pixels); |
| 140 | pixelsv2 = unaligned_load(line_size+1, pixels); |
| 141 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 142 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 143 | pixelssum2 = vec_add((vector unsigned short)pixelsv1, |
| 144 | (vector unsigned short)pixelsv2); |
| 145 | temp3 = vec_add(pixelssum1, pixelssum2); |
| 146 | temp3 = vec_sra(temp3, vctwo); |
| 147 | pixelssum1 = vec_add(pixelssum2, vctwo); |
| 148 | pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); |
| 149 | |
| 150 | if (rightside) { |
| 151 | blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); |
| 152 | } else { |
| 153 | blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); |
| 154 | } |
| 155 | |
| 156 | vec_st(blockv, 0, block); |
| 157 | |
| 158 | block += line_size; |
| 159 | pixels += line_size; |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | /* next one assumes that ((line_size % 8) == 0) */ |
| 164 | static void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) |
| 165 | { |
| 166 | register int i; |
| 167 | register vector unsigned char pixelsv1, pixelsv2, pixelsavg; |
| 168 | register vector unsigned char blockv; |
| 169 | register vector unsigned short pixelssum1, pixelssum2, temp3; |
| 170 | register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0); |
| 171 | register const vector unsigned short vcone = (const vector unsigned short)vec_splat_u16(1); |
| 172 | register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2); |
| 173 | |
| 174 | pixelsv1 = VEC_LD(0, pixels); |
| 175 | pixelsv2 = VEC_LD(1, pixels); |
| 176 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 177 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 178 | pixelssum1 = vec_add((vector unsigned short)pixelsv1, |
| 179 | (vector unsigned short)pixelsv2); |
| 180 | pixelssum1 = vec_add(pixelssum1, vcone); |
| 181 | |
| 182 | for (i = 0; i < h ; i++) { |
| 183 | int rightside = ((unsigned long)block & 0x0000000F); |
| 184 | blockv = vec_ld(0, block); |
| 185 | |
| 186 | pixelsv1 = unaligned_load(line_size, pixels); |
| 187 | pixelsv2 = unaligned_load(line_size+1, pixels); |
| 188 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 189 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 190 | pixelssum2 = vec_add((vector unsigned short)pixelsv1, |
| 191 | (vector unsigned short)pixelsv2); |
| 192 | temp3 = vec_add(pixelssum1, pixelssum2); |
| 193 | temp3 = vec_sra(temp3, vctwo); |
| 194 | pixelssum1 = vec_add(pixelssum2, vcone); |
| 195 | pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); |
| 196 | |
| 197 | if (rightside) { |
| 198 | blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); |
| 199 | } else { |
| 200 | blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); |
| 201 | } |
| 202 | |
| 203 | vec_st(blockv, 0, block); |
| 204 | |
| 205 | block += line_size; |
| 206 | pixels += line_size; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | /* next one assumes that ((line_size % 16) == 0) */ |
| 211 | static void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h) |
| 212 | { |
| 213 | register int i; |
| 214 | register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4; |
| 215 | register vector unsigned char blockv; |
| 216 | register vector unsigned short temp3, temp4, |
| 217 | pixelssum1, pixelssum2, pixelssum3, pixelssum4; |
| 218 | register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0); |
| 219 | register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2); |
| 220 | |
| 221 | pixelsv1 = VEC_LD(0, pixels); |
| 222 | pixelsv2 = VEC_LD(1, pixels); |
| 223 | pixelsv3 = VEC_MERGEL(vczero, pixelsv1); |
| 224 | pixelsv4 = VEC_MERGEL(vczero, pixelsv2); |
| 225 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 226 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 227 | pixelssum3 = vec_add((vector unsigned short)pixelsv3, |
| 228 | (vector unsigned short)pixelsv4); |
| 229 | pixelssum3 = vec_add(pixelssum3, vctwo); |
| 230 | pixelssum1 = vec_add((vector unsigned short)pixelsv1, |
| 231 | (vector unsigned short)pixelsv2); |
| 232 | pixelssum1 = vec_add(pixelssum1, vctwo); |
| 233 | |
| 234 | for (i = 0; i < h ; i++) { |
| 235 | blockv = vec_ld(0, block); |
| 236 | |
| 237 | pixelsv1 = unaligned_load(line_size, pixels); |
| 238 | pixelsv2 = unaligned_load(line_size+1, pixels); |
| 239 | |
| 240 | pixelsv3 = VEC_MERGEL(vczero, pixelsv1); |
| 241 | pixelsv4 = VEC_MERGEL(vczero, pixelsv2); |
| 242 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 243 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 244 | pixelssum4 = vec_add((vector unsigned short)pixelsv3, |
| 245 | (vector unsigned short)pixelsv4); |
| 246 | pixelssum2 = vec_add((vector unsigned short)pixelsv1, |
| 247 | (vector unsigned short)pixelsv2); |
| 248 | temp4 = vec_add(pixelssum3, pixelssum4); |
| 249 | temp4 = vec_sra(temp4, vctwo); |
| 250 | temp3 = vec_add(pixelssum1, pixelssum2); |
| 251 | temp3 = vec_sra(temp3, vctwo); |
| 252 | |
| 253 | pixelssum3 = vec_add(pixelssum4, vctwo); |
| 254 | pixelssum1 = vec_add(pixelssum2, vctwo); |
| 255 | |
| 256 | blockv = vec_packsu(temp3, temp4); |
| 257 | |
| 258 | vec_st(blockv, 0, block); |
| 259 | |
| 260 | block += line_size; |
| 261 | pixels += line_size; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | /* next one assumes that ((line_size % 16) == 0) */ |
| 266 | static void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, ptrdiff_t line_size, int h) |
| 267 | { |
| 268 | register int i; |
| 269 | register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4; |
| 270 | register vector unsigned char blockv; |
| 271 | register vector unsigned short temp3, temp4, |
| 272 | pixelssum1, pixelssum2, pixelssum3, pixelssum4; |
| 273 | register const vector unsigned char vczero = (const vector unsigned char)vec_splat_u8(0); |
| 274 | register const vector unsigned short vcone = (const vector unsigned short)vec_splat_u16(1); |
| 275 | register const vector unsigned short vctwo = (const vector unsigned short)vec_splat_u16(2); |
| 276 | |
| 277 | pixelsv1 = VEC_LD(0, pixels); |
| 278 | pixelsv2 = VEC_LD(1, pixels); |
| 279 | pixelsv3 = VEC_MERGEL(vczero, pixelsv1); |
| 280 | pixelsv4 = VEC_MERGEL(vczero, pixelsv2); |
| 281 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 282 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 283 | pixelssum3 = vec_add((vector unsigned short)pixelsv3, |
| 284 | (vector unsigned short)pixelsv4); |
| 285 | pixelssum3 = vec_add(pixelssum3, vcone); |
| 286 | pixelssum1 = vec_add((vector unsigned short)pixelsv1, |
| 287 | (vector unsigned short)pixelsv2); |
| 288 | pixelssum1 = vec_add(pixelssum1, vcone); |
| 289 | |
| 290 | for (i = 0; i < h ; i++) { |
| 291 | pixelsv1 = unaligned_load(line_size, pixels); |
| 292 | pixelsv2 = unaligned_load(line_size+1, pixels); |
| 293 | |
| 294 | pixelsv3 = VEC_MERGEL(vczero, pixelsv1); |
| 295 | pixelsv4 = VEC_MERGEL(vczero, pixelsv2); |
| 296 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 297 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 298 | pixelssum4 = vec_add((vector unsigned short)pixelsv3, |
| 299 | (vector unsigned short)pixelsv4); |
| 300 | pixelssum2 = vec_add((vector unsigned short)pixelsv1, |
| 301 | (vector unsigned short)pixelsv2); |
| 302 | temp4 = vec_add(pixelssum3, pixelssum4); |
| 303 | temp4 = vec_sra(temp4, vctwo); |
| 304 | temp3 = vec_add(pixelssum1, pixelssum2); |
| 305 | temp3 = vec_sra(temp3, vctwo); |
| 306 | |
| 307 | pixelssum3 = vec_add(pixelssum4, vcone); |
| 308 | pixelssum1 = vec_add(pixelssum2, vcone); |
| 309 | |
| 310 | blockv = vec_packsu(temp3, temp4); |
| 311 | |
| 312 | VEC_ST(blockv, 0, block); |
| 313 | |
| 314 | block += line_size; |
| 315 | pixels += line_size; |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | /* next one assumes that ((line_size % 8) == 0) */ |
| 320 | static void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) |
| 321 | { |
| 322 | register int i; |
| 323 | register vector unsigned char pixelsv1, pixelsv2, pixelsavg; |
| 324 | register vector unsigned char blockv, blocktemp; |
| 325 | register vector unsigned short pixelssum1, pixelssum2, temp3; |
| 326 | |
| 327 | register const vector unsigned char vczero = (const vector unsigned char) |
| 328 | vec_splat_u8(0); |
| 329 | register const vector unsigned short vctwo = (const vector unsigned short) |
| 330 | vec_splat_u16(2); |
| 331 | |
| 332 | pixelsv1 = VEC_LD(0, pixels); |
| 333 | pixelsv2 = VEC_LD(1, pixels); |
| 334 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 335 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 336 | pixelssum1 = vec_add((vector unsigned short)pixelsv1, |
| 337 | (vector unsigned short)pixelsv2); |
| 338 | pixelssum1 = vec_add(pixelssum1, vctwo); |
| 339 | |
| 340 | for (i = 0; i < h ; i++) { |
| 341 | int rightside = ((unsigned long)block & 0x0000000F); |
| 342 | blockv = vec_ld(0, block); |
| 343 | |
| 344 | pixelsv1 = unaligned_load(line_size, pixels); |
| 345 | pixelsv2 = unaligned_load(line_size+1, pixels); |
| 346 | |
| 347 | pixelsv1 = VEC_MERGEH(vczero, pixelsv1); |
| 348 | pixelsv2 = VEC_MERGEH(vczero, pixelsv2); |
| 349 | pixelssum2 = vec_add((vector unsigned short)pixelsv1, |
| 350 | (vector unsigned short)pixelsv2); |
| 351 | temp3 = vec_add(pixelssum1, pixelssum2); |
| 352 | temp3 = vec_sra(temp3, vctwo); |
| 353 | pixelssum1 = vec_add(pixelssum2, vctwo); |
| 354 | pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); |
| 355 | |
| 356 | if (rightside) { |
| 357 | blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); |
| 358 | } else { |
| 359 | blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); |
| 360 | } |
| 361 | |
| 362 | blockv = vec_avg(blocktemp, blockv); |
| 363 | vec_st(blockv, 0, block); |
| 364 | |
| 365 | block += line_size; |
| 366 | pixels += line_size; |
| 367 | } |
| 368 | } |
| 369 | #endif /* HAVE_ALTIVEC */ |
| 370 | |
| 371 | av_cold void ff_hpeldsp_init_ppc(HpelDSPContext *c, int flags) |
| 372 | { |
| 373 | #if HAVE_ALTIVEC |
| 374 | if (!PPC_ALTIVEC(av_get_cpu_flags())) |
| 375 | return; |
| 376 | |
| 377 | c->avg_pixels_tab[0][0] = ff_avg_pixels16_altivec; |
| 378 | c->avg_pixels_tab[1][0] = avg_pixels8_altivec; |
| 379 | c->avg_pixels_tab[1][3] = avg_pixels8_xy2_altivec; |
| 380 | |
| 381 | c->put_pixels_tab[0][0] = ff_put_pixels16_altivec; |
| 382 | c->put_pixels_tab[1][3] = put_pixels8_xy2_altivec; |
| 383 | c->put_pixels_tab[0][3] = put_pixels16_xy2_altivec; |
| 384 | |
| 385 | c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_altivec; |
| 386 | c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_altivec; |
| 387 | c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_altivec; |
| 388 | #endif /* HAVE_ALTIVEC */ |
| 389 | } |