1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 27 /* 28 * FUNCTION 29 * mlib_ImageAffine_u16_1ch_bl 30 * mlib_ImageAffine_u16_2ch_bl 31 * mlib_ImageAffine_u16_3ch_bl 32 * mlib_ImageAffine_u16_4ch_bl 33 * - image affine transformation with Bilinear filtering 34 * SYNOPSIS 35 * mlib_status mlib_ImageAffine_u16_?ch_bl(mlib_s32 *leftEdges, 36 * mlib_s32 *rightEdges, 37 * mlib_s32 *xStarts, 38 * mlib_s32 *yStarts, 39 * mlib_s32 *sides, 40 * mlib_u8 *dstData, 41 * mlib_u8 **lineAddr, 42 * mlib_s32 dstYStride, 43 * mlib_s32 is_affine, 44 * mlib_s32 srcYStride) 45 * 46 * ARGUMENTS 47 * leftEdges array[dstHeight] of xLeft coordinates 48 * RightEdges array[dstHeight] of xRight coordinates 49 * xStarts array[dstHeight] of xStart * 65536 coordinates 50 * yStarts array[dstHeight] of yStart * 65536 coordinates 51 * sides output array[4]. sides[0] is yStart, sides[1] is yFinish, 52 * sides[2] is dx * 65536, sides[3] is dy * 65536 53 * dstData pointer to the first pixel on (yStart - 1) line 54 * lineAddr array[srcHeight] of pointers to the first pixel on 55 * the corresponding lines 56 * dstYStride stride of destination image 57 * is_affine indicator (Affine - GridWarp) 58 * srcYStride stride of source image 59 * 60 * DESCRIPTION 61 * The functions step along the lines from xLeft to xRight and apply 62 * the bilinear filtering. 63 * 64 */ 65 66 #include "mlib_ImageAffine.h" 67 68 /***************************************************************/ 69 #define DTYPE mlib_u16 70 #define FTYPE mlib_d64 71 72 /***************************************************************/ 73 #define TTYPE mlib_s32 74 #define I2F(x) (x) 75 #define ROUND(x) (x) 76 77 #define FUN_NAME(CHAN) mlib_ImageAffine_u16_##CHAN##_bl 78 79 /***************************************************************/ 80 #ifdef __sparc /* for SPARC, using floating-point multiplies is faster */ 81 82 /***************************************************************/ 83 #define GET_POINTERS(ind) \ 84 fdx = (FTYPE)(X & MLIB_MASK) * scale; \ 85 fdy = (FTYPE)(Y & MLIB_MASK) * scale; \ 86 ySrc = MLIB_POINTER_SHIFT(Y); Y += dY; \ 87 xSrc = X >> MLIB_SHIFT; X += dX; \ 88 srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + ind * xSrc; \ 89 srcPixelPtr2 = (DTYPE *)((mlib_u8 *)srcPixelPtr + srcYStride) 90 91 /***************************************************************/ 92 #define COUNT(ind) \ 93 pix0_##ind = a00_##ind + fdy * (a10_##ind - a00_##ind); \ 94 pix1_##ind = a01_##ind + fdy * (a11_##ind - a01_##ind); \ 95 res##ind = ROUND(pix0_##ind + fdx * (pix1_##ind - pix0_##ind)) 96 97 /***************************************************************/ 98 #define LOAD(ind, ind1, ind2) \ 99 a00_##ind = I2F(srcPixelPtr[ind1]); \ 100 a01_##ind = I2F(srcPixelPtr[ind2]); \ 101 a10_##ind = I2F(srcPixelPtr2[ind1]); \ 102 a11_##ind = I2F(srcPixelPtr2[ind2]) 103 104 /***************************************************************/ 105 mlib_status FUN_NAME(1ch)(mlib_affine_param *param) 106 { 107 DECLAREVAR_BL(); 108 DTYPE *dstLineEnd; 109 DTYPE *srcPixelPtr2; 110 FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; 111 112 for (j = yStart; j <= yFinish; j++) { 113 FTYPE fdx, fdy; 114 TTYPE a00_0, a01_0, a10_0, a11_0; 115 FTYPE pix0_0, pix1_0, res0; 116 117 CLIP(1); 118 dstLineEnd = (DTYPE *) dstData + xRight; 119 120 GET_POINTERS(1); 121 LOAD(0, 0, 1); 122 123 #ifdef __SUNPRO_C 124 #pragma pipeloop(0) 125 #endif /* __SUNPRO_C */ 126 for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { 127 COUNT(0); 128 GET_POINTERS(1); 129 LOAD(0, 0, 1); 130 dstPixelPtr[0] = (DTYPE) res0; 131 } 132 133 COUNT(0); 134 dstPixelPtr[0] = (DTYPE) res0; 135 } 136 137 return MLIB_SUCCESS; 138 } 139 140 /***************************************************************/ 141 mlib_status FUN_NAME(2ch)(mlib_affine_param *param) 142 { 143 DECLAREVAR_BL(); 144 DTYPE *dstLineEnd; 145 DTYPE *srcPixelPtr2; 146 FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; 147 148 for (j = yStart; j <= yFinish; j++) { 149 FTYPE fdx, fdy; 150 TTYPE a00_0, a01_0, a10_0, a11_0; 151 TTYPE a00_1, a01_1, a10_1, a11_1; 152 FTYPE pix0_0, pix1_0, res0; 153 FTYPE pix0_1, pix1_1, res1; 154 155 CLIP(2); 156 dstLineEnd = (DTYPE *) dstData + 2 * xRight; 157 158 GET_POINTERS(2); 159 LOAD(0, 0, 2); 160 LOAD(1, 1, 3); 161 162 #ifdef __SUNPRO_C 163 #pragma pipeloop(0) 164 #endif /* __SUNPRO_C */ 165 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { 166 COUNT(0); 167 COUNT(1); 168 GET_POINTERS(2); 169 LOAD(0, 0, 2); 170 LOAD(1, 1, 3); 171 dstPixelPtr[0] = (DTYPE) res0; 172 dstPixelPtr[1] = (DTYPE) res1; 173 } 174 175 COUNT(0); 176 COUNT(1); 177 dstPixelPtr[0] = (DTYPE) res0; 178 dstPixelPtr[1] = (DTYPE) res1; 179 } 180 181 return MLIB_SUCCESS; 182 } 183 184 /***************************************************************/ 185 mlib_status FUN_NAME(3ch)(mlib_affine_param *param) 186 { 187 DECLAREVAR_BL(); 188 DTYPE *dstLineEnd; 189 DTYPE *srcPixelPtr2; 190 FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; 191 192 for (j = yStart; j <= yFinish; j++) { 193 FTYPE fdx, fdy; 194 FTYPE a00_0, a01_0, a10_0, a11_0; 195 FTYPE a00_1, a01_1, a10_1, a11_1; 196 FTYPE a00_2, a01_2, a10_2, a11_2; 197 FTYPE pix0_0, pix1_0, res0; 198 FTYPE pix0_1, pix1_1, res1; 199 FTYPE pix0_2, pix1_2, res2; 200 201 CLIP(3); 202 dstLineEnd = (DTYPE *) dstData + 3 * xRight; 203 204 GET_POINTERS(3); 205 LOAD(0, 0, 3); 206 LOAD(1, 1, 4); 207 LOAD(2, 2, 5); 208 209 #ifdef __SUNPRO_C 210 #pragma pipeloop(0) 211 #endif /* __SUNPRO_C */ 212 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { 213 COUNT(0); 214 COUNT(1); 215 COUNT(2); 216 GET_POINTERS(3); 217 LOAD(0, 0, 3); 218 LOAD(1, 1, 4); 219 LOAD(2, 2, 5); 220 dstPixelPtr[0] = (DTYPE) res0; 221 dstPixelPtr[1] = (DTYPE) res1; 222 dstPixelPtr[2] = (DTYPE) res2; 223 } 224 225 COUNT(0); 226 COUNT(1); 227 COUNT(2); 228 dstPixelPtr[0] = (DTYPE) res0; 229 dstPixelPtr[1] = (DTYPE) res1; 230 dstPixelPtr[2] = (DTYPE) res2; 231 } 232 233 return MLIB_SUCCESS; 234 } 235 236 /***************************************************************/ 237 mlib_status FUN_NAME(4ch)(mlib_affine_param *param) 238 { 239 DECLAREVAR_BL(); 240 DTYPE *dstLineEnd; 241 DTYPE *srcPixelPtr2; 242 FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; 243 244 for (j = yStart; j <= yFinish; j++) { 245 FTYPE fdx, fdy; 246 TTYPE a00_0, a01_0, a10_0, a11_0; 247 TTYPE a00_1, a01_1, a10_1, a11_1; 248 TTYPE a00_2, a01_2, a10_2, a11_2; 249 TTYPE a00_3, a01_3, a10_3, a11_3; 250 FTYPE pix0_0, pix1_0, res0; 251 FTYPE pix0_1, pix1_1, res1; 252 FTYPE pix0_2, pix1_2, res2; 253 FTYPE pix0_3, pix1_3, res3; 254 255 CLIP(4); 256 dstLineEnd = (DTYPE *) dstData + 4 * xRight; 257 258 GET_POINTERS(4); 259 LOAD(0, 0, 4); 260 LOAD(1, 1, 5); 261 LOAD(2, 2, 6); 262 LOAD(3, 3, 7); 263 264 #ifdef __SUNPRO_C 265 #pragma pipeloop(0) 266 #endif /* __SUNPRO_C */ 267 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { 268 COUNT(0); 269 COUNT(1); 270 COUNT(2); 271 COUNT(3); 272 GET_POINTERS(4); 273 LOAD(0, 0, 4); 274 LOAD(1, 1, 5); 275 LOAD(2, 2, 6); 276 LOAD(3, 3, 7); 277 dstPixelPtr[0] = (DTYPE) res0; 278 dstPixelPtr[1] = (DTYPE) res1; 279 dstPixelPtr[2] = (DTYPE) res2; 280 dstPixelPtr[3] = (DTYPE) res3; 281 } 282 283 COUNT(0); 284 COUNT(1); 285 COUNT(2); 286 COUNT(3); 287 dstPixelPtr[0] = (DTYPE) res0; 288 dstPixelPtr[1] = (DTYPE) res1; 289 dstPixelPtr[2] = (DTYPE) res2; 290 dstPixelPtr[3] = (DTYPE) res3; 291 } 292 293 return MLIB_SUCCESS; 294 } 295 296 /***************************************************************/ 297 #else /* for x86, using integer multiplies is faster */ 298 299 /***************************************************************/ 300 /* for SHORT/USHORT decrease MLIB_SHIFT due to overflow in multiplies like fdy * (a10 - a00) */ 301 #undef MLIB_SHIFT 302 #define MLIB_SHIFT 15 303 304 #define MLIB_ROUND (1 << (MLIB_SHIFT - 1)) 305 306 /***************************************************************/ 307 #define GET_POINTERS(ind) \ 308 fdx = X & MLIB_MASK; \ 309 fdy = Y & MLIB_MASK; \ 310 ySrc = MLIB_POINTER_SHIFT(Y); \ 311 xSrc = X >> MLIB_SHIFT; \ 312 srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + ind * xSrc; \ 313 srcPixelPtr2 = (DTYPE *)((mlib_u8 *)srcPixelPtr + srcYStride); \ 314 X += dX; \ 315 Y += dY 316 317 /***************************************************************/ 318 #define COUNT(ind) \ 319 pix0_##ind = a00_##ind + ((fdy * (a10_##ind - a00_##ind) + MLIB_ROUND) >> MLIB_SHIFT); \ 320 pix1_##ind = a01_##ind + ((fdy * (a11_##ind - a01_##ind) + MLIB_ROUND) >> MLIB_SHIFT); \ 321 res##ind = pix0_##ind + ((fdx * (pix1_##ind - pix0_##ind) + MLIB_ROUND) >> MLIB_SHIFT) 322 323 /***************************************************************/ 324 #define LOAD(ind, ind1, ind2) \ 325 a00_##ind = srcPixelPtr[ind1]; \ 326 a01_##ind = srcPixelPtr[ind2]; \ 327 a10_##ind = srcPixelPtr2[ind1]; \ 328 a11_##ind = srcPixelPtr2[ind2] 329 330 /***************************************************************/ 331 mlib_status FUN_NAME(1ch)(mlib_affine_param *param) 332 { 333 DECLAREVAR_BL(); 334 DTYPE *dstLineEnd; 335 DTYPE *srcPixelPtr2; 336 337 #if MLIB_SHIFT == 15 338 dX = (dX + 1) >> 1; 339 dY = (dY + 1) >> 1; 340 #endif 341 342 for (j = yStart; j <= yFinish; j++) { 343 mlib_s32 fdx, fdy; 344 mlib_s32 a00_0, a01_0, a10_0, a11_0; 345 mlib_s32 pix0_0, pix1_0, res0; 346 347 CLIP(1); 348 dstLineEnd = (DTYPE *) dstData + xRight; 349 #if MLIB_SHIFT == 15 350 X = X >> 1; 351 Y = Y >> 1; 352 353 if (warp_tbl != NULL) { 354 dX = (dX + 1) >> 1; 355 dY = (dY + 1) >> 1; 356 } 357 358 #endif 359 360 GET_POINTERS(1); 361 LOAD(0, 0, 1); 362 363 #ifdef __SUNPRO_C 364 #pragma pipeloop(0) 365 #endif /* __SUNPRO_C */ 366 for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { 367 COUNT(0); 368 GET_POINTERS(1); 369 LOAD(0, 0, 1); 370 dstPixelPtr[0] = (DTYPE) res0; 371 } 372 373 COUNT(0); 374 dstPixelPtr[0] = (DTYPE) res0; 375 } 376 377 return MLIB_SUCCESS; 378 } 379 380 /***************************************************************/ 381 mlib_status FUN_NAME(2ch)(mlib_affine_param *param) 382 { 383 DECLAREVAR_BL(); 384 DTYPE *dstLineEnd; 385 DTYPE *srcPixelPtr2; 386 387 #if MLIB_SHIFT == 15 388 dX = (dX + 1) >> 1; 389 dY = (dY + 1) >> 1; 390 #endif 391 392 for (j = yStart; j <= yFinish; j++) { 393 mlib_s32 fdx, fdy; 394 mlib_s32 a00_0, a01_0, a10_0, a11_0; 395 mlib_s32 a00_1, a01_1, a10_1, a11_1; 396 mlib_s32 pix0_0, pix1_0, res0; 397 mlib_s32 pix0_1, pix1_1, res1; 398 399 CLIP(2); 400 dstLineEnd = (DTYPE *) dstData + 2 * xRight; 401 #if MLIB_SHIFT == 15 402 X = X >> 1; 403 Y = Y >> 1; 404 405 if (warp_tbl != NULL) { 406 dX = (dX + 1) >> 1; 407 dY = (dY + 1) >> 1; 408 } 409 410 #endif 411 412 GET_POINTERS(2); 413 LOAD(0, 0, 2); 414 LOAD(1, 1, 3); 415 416 #ifdef __SUNPRO_C 417 #pragma pipeloop(0) 418 #endif /* __SUNPRO_C */ 419 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { 420 COUNT(0); 421 COUNT(1); 422 GET_POINTERS(2); 423 LOAD(0, 0, 2); 424 LOAD(1, 1, 3); 425 dstPixelPtr[0] = (DTYPE) res0; 426 dstPixelPtr[1] = (DTYPE) res1; 427 } 428 429 COUNT(0); 430 COUNT(1); 431 dstPixelPtr[0] = (DTYPE) res0; 432 dstPixelPtr[1] = (DTYPE) res1; 433 } 434 435 return MLIB_SUCCESS; 436 } 437 438 /***************************************************************/ 439 mlib_status FUN_NAME(3ch)(mlib_affine_param *param) 440 { 441 DECLAREVAR_BL(); 442 DTYPE *dstLineEnd; 443 DTYPE *srcPixelPtr2; 444 445 #if MLIB_SHIFT == 15 446 dX = (dX + 1) >> 1; 447 dY = (dY + 1) >> 1; 448 #endif 449 450 for (j = yStart; j <= yFinish; j++) { 451 mlib_s32 fdx, fdy; 452 mlib_s32 a00_0, a01_0, a10_0, a11_0; 453 mlib_s32 a00_1, a01_1, a10_1, a11_1; 454 mlib_s32 a00_2, a01_2, a10_2, a11_2; 455 mlib_s32 pix0_0, pix1_0, res0; 456 mlib_s32 pix0_1, pix1_1, res1; 457 mlib_s32 pix0_2, pix1_2, res2; 458 459 CLIP(3); 460 dstLineEnd = (DTYPE *) dstData + 3 * xRight; 461 #if MLIB_SHIFT == 15 462 X = X >> 1; 463 Y = Y >> 1; 464 465 if (warp_tbl != NULL) { 466 dX = (dX + 1) >> 1; 467 dY = (dY + 1) >> 1; 468 } 469 470 #endif 471 472 GET_POINTERS(3); 473 LOAD(0, 0, 3); 474 LOAD(1, 1, 4); 475 LOAD(2, 2, 5); 476 477 #ifdef __SUNPRO_C 478 #pragma pipeloop(0) 479 #endif /* __SUNPRO_C */ 480 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { 481 COUNT(0); 482 COUNT(1); 483 COUNT(2); 484 GET_POINTERS(3); 485 LOAD(0, 0, 3); 486 LOAD(1, 1, 4); 487 LOAD(2, 2, 5); 488 dstPixelPtr[0] = (DTYPE) res0; 489 dstPixelPtr[1] = (DTYPE) res1; 490 dstPixelPtr[2] = (DTYPE) res2; 491 } 492 493 COUNT(0); 494 COUNT(1); 495 COUNT(2); 496 dstPixelPtr[0] = (DTYPE) res0; 497 dstPixelPtr[1] = (DTYPE) res1; 498 dstPixelPtr[2] = (DTYPE) res2; 499 } 500 501 return MLIB_SUCCESS; 502 } 503 504 /***************************************************************/ 505 mlib_status FUN_NAME(4ch)(mlib_affine_param *param) 506 { 507 DECLAREVAR_BL(); 508 DTYPE *dstLineEnd; 509 DTYPE *srcPixelPtr2; 510 511 #if MLIB_SHIFT == 15 512 dX = (dX + 1) >> 1; 513 dY = (dY + 1) >> 1; 514 #endif 515 516 for (j = yStart; j <= yFinish; j++) { 517 mlib_s32 fdx, fdy; 518 mlib_s32 a00_0, a01_0, a10_0, a11_0; 519 mlib_s32 a00_1, a01_1, a10_1, a11_1; 520 mlib_s32 a00_2, a01_2, a10_2, a11_2; 521 mlib_s32 a00_3, a01_3, a10_3, a11_3; 522 mlib_s32 pix0_0, pix1_0, res0; 523 mlib_s32 pix0_1, pix1_1, res1; 524 mlib_s32 pix0_2, pix1_2, res2; 525 mlib_s32 pix0_3, pix1_3, res3; 526 527 CLIP(4); 528 dstLineEnd = (DTYPE *) dstData + 4 * xRight; 529 #if MLIB_SHIFT == 15 530 X = X >> 1; 531 Y = Y >> 1; 532 533 if (warp_tbl != NULL) { 534 dX = (dX + 1) >> 1; 535 dY = (dY + 1) >> 1; 536 } 537 538 #endif 539 540 GET_POINTERS(4); 541 LOAD(0, 0, 4); 542 LOAD(1, 1, 5); 543 LOAD(2, 2, 6); 544 LOAD(3, 3, 7); 545 546 #ifdef __SUNPRO_C 547 #pragma pipeloop(0) 548 #endif /* __SUNPRO_C */ 549 for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { 550 COUNT(0); 551 COUNT(1); 552 COUNT(2); 553 COUNT(3); 554 GET_POINTERS(4); 555 LOAD(0, 0, 4); 556 LOAD(1, 1, 5); 557 LOAD(2, 2, 6); 558 LOAD(3, 3, 7); 559 dstPixelPtr[0] = (DTYPE) res0; 560 dstPixelPtr[1] = (DTYPE) res1; 561 dstPixelPtr[2] = (DTYPE) res2; 562 dstPixelPtr[3] = (DTYPE) res3; 563 } 564 565 COUNT(0); 566 COUNT(1); 567 COUNT(2); 568 COUNT(3); 569 dstPixelPtr[0] = (DTYPE) res0; 570 dstPixelPtr[1] = (DTYPE) res1; 571 dstPixelPtr[2] = (DTYPE) res2; 572 dstPixelPtr[3] = (DTYPE) res3; 573 } 574 575 return MLIB_SUCCESS; 576 } 577 578 #endif /* #ifdef __sparc */ 579 580 /***************************************************************/ 581