J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | /* |
| 28 | * FUNCTION |
| 29 | * mlib_ImageZoom - image scaling with edge condition |
| 30 | * |
| 31 | * SYNOPSIS |
| 32 | * mlib_status mlib_ImageZoom(mlib_image *dst, |
| 33 | * const mlib_image *src, |
| 34 | * mlib_f32 zoomx, |
| 35 | * mlib_f32 zoomy, |
| 36 | * mlib_filter filter, |
| 37 | * mlib_edge edge) |
| 38 | * |
| 39 | * ARGUMENTS |
| 40 | * dst Pointer to destination image |
| 41 | * src Pointer to source image |
| 42 | * zoomx X zoom factor. |
| 43 | * zoomy Y zoom factor. |
| 44 | * filter Type of resampling filter. |
| 45 | * edge Type of edge condition. |
| 46 | * |
| 47 | * DESCRIPTION |
| 48 | * The center of the source image is mapped to the center of the |
| 49 | * destination image. |
| 50 | * |
| 51 | * The upper-left corner pixel of an image is located at (0.5, 0.5). |
| 52 | * |
| 53 | * The resampling filter can be one of the following: |
| 54 | * MLIB_NEAREST |
| 55 | * MLIB_BILINEAR |
| 56 | * MLIB_BICUBIC |
| 57 | * MLIB_BICUBIC2 |
| 58 | * |
| 59 | * The edge condition can be one of the following: |
| 60 | * MLIB_EDGE_DST_NO_WRITE (default) |
| 61 | * MLIB_EDGE_DST_FILL_ZERO |
| 62 | * MLIB_EDGE_OP_NEAREST |
| 63 | * MLIB_EDGE_SRC_EXTEND |
| 64 | * MLIB_EDGE_SRC_PADDED |
| 65 | */ |
| 66 | |
| 67 | #include <mlib_image.h> |
| 68 | #include <vis_proto.h> |
| 69 | |
| 70 | /***************************************************************/ |
| 71 | |
| 72 | #define _MLIB_VIS_VER_ |
| 73 | #include <mlib_ImageZoom.h> |
| 74 | |
| 75 | /***************************************************************/ |
| 76 | |
| 77 | #define VARIABLE(FORMAT) \ |
| 78 | mlib_s32 j, \ |
| 79 | dx = GetElemStruct(DX), \ |
| 80 | dy = GetElemStruct(DY), \ |
| 81 | x = GetElemSubStruct(current, srcX), \ |
| 82 | y = GetElemSubStruct(current, srcY), \ |
| 83 | src_stride = GetElemStruct(src_stride), \ |
| 84 | dst_stride = GetElemStruct(dst_stride), \ |
| 85 | width = GetElemSubStruct(current, width), \ |
| 86 | height = GetElemSubStruct(current, height); \ |
| 87 | FORMAT *sp = GetElemSubStruct(current, sp), \ |
| 88 | *dp = GetElemSubStruct(current, dp) |
| 89 | |
| 90 | /***************************************************************/ |
| 91 | |
| 92 | mlib_status mlib_ImageZoom_U8_1_Nearest(mlib_work_image *param) |
| 93 | { |
| 94 | VARIABLE(mlib_u8); |
| 95 | mlib_u8 *dl = dp, *tsp; |
| 96 | mlib_s32 y0 = -1, dx7 = 7*dx, dx15 = 8*dx + dx7; |
| 97 | |
| 98 | tsp = sp; |
| 99 | y = GetElemSubStruct(current, srcY) & MLIB_MASK; |
| 100 | |
| 101 | for (j = 0; j < height; j++) { |
| 102 | |
| 103 | if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { |
| 104 | mlib_ImageCopy_na(dl - dst_stride, dl, width); |
| 105 | } |
| 106 | else { |
| 107 | mlib_u8 *dp = dl, *dend = dl + width; |
| 108 | |
| 109 | vis_write_gsr(7); |
| 110 | x = GetElemSubStruct(current, srcX) & MLIB_MASK; |
| 111 | |
| 112 | while (((mlib_addr)dp & 7) && (dp < dend)) { |
| 113 | *dp++ = tsp[x >> MLIB_SHIFT]; |
| 114 | x += dx; |
| 115 | } |
| 116 | |
| 117 | x += dx7; |
| 118 | |
| 119 | #pragma pipeloop(0) |
| 120 | for (; dp <= dend - 8; dp += 8) { |
| 121 | mlib_d64 s0; |
| 122 | |
| 123 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 124 | x -= dx; |
| 125 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 126 | x -= dx; |
| 127 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 128 | x -= dx; |
| 129 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 130 | x -= dx; |
| 131 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 132 | x -= dx; |
| 133 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 134 | x -= dx; |
| 135 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 136 | x -= dx; |
| 137 | s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); |
| 138 | x += dx15; |
| 139 | |
| 140 | *(mlib_d64*)dp = s0; |
| 141 | } |
| 142 | |
| 143 | x -= dx7; |
| 144 | |
| 145 | while (dp < dend) { |
| 146 | *dp++ = tsp[x >> MLIB_SHIFT]; |
| 147 | x += dx; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | y0 = y; |
| 152 | y += dy; |
| 153 | dl = (void*)((mlib_u8*)dl + dst_stride); |
| 154 | tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); |
| 155 | } |
| 156 | |
| 157 | return MLIB_SUCCESS; |
| 158 | } |
| 159 | |
| 160 | /***************************************************************/ |
| 161 | |
| 162 | mlib_status mlib_ImageZoom_U8_3_Nearest(mlib_work_image *param) |
| 163 | { |
| 164 | VARIABLE(mlib_u8); |
| 165 | mlib_u8 *dl = dp, *tsp, *tt; |
| 166 | mlib_s32 cx, y0 = -1, dx7 = 7*dx, dx15 = 8*dx + dx7; |
| 167 | |
| 168 | tsp = sp; |
| 169 | y = GetElemSubStruct(current, srcY) & MLIB_MASK; |
| 170 | |
| 171 | for (j = 0; j < height; j++) { |
| 172 | |
| 173 | if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { |
| 174 | mlib_ImageCopy_na(dl - dst_stride, dl, 3*width); |
| 175 | } |
| 176 | else { |
| 177 | mlib_u8 *dp = dl, *dend = dl + 3*width; |
| 178 | |
| 179 | vis_write_gsr(7); |
| 180 | x = GetElemSubStruct(current, srcX) & MLIB_MASK; |
| 181 | |
| 182 | while (((mlib_addr)dp & 7) && (dp < dend)) { |
| 183 | cx = x >> MLIB_SHIFT; |
| 184 | tt = tsp + 2*cx + cx; |
| 185 | dp[0] = tt[0]; |
| 186 | dp[1] = tt[1]; |
| 187 | dp[2] = tt[2]; |
| 188 | x += dx; |
| 189 | dp += 3; |
| 190 | } |
| 191 | |
| 192 | x += dx7; |
| 193 | |
| 194 | #pragma pipeloop(0) |
| 195 | for (; dp <= dend - 24; dp += 24) { |
| 196 | mlib_d64 s0, s1, s2; |
| 197 | |
| 198 | cx = x >> MLIB_SHIFT; |
| 199 | tt = tsp + 2*cx + cx; |
| 200 | x -= dx; |
| 201 | s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); |
| 202 | s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); |
| 203 | s2 = vis_faligndata(vis_ld_u8_i(tt, 0), s2); |
| 204 | |
| 205 | cx = x >> MLIB_SHIFT; |
| 206 | tt = tsp + 2*cx + cx; |
| 207 | x -= dx; |
| 208 | s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); |
| 209 | s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); |
| 210 | s2 = vis_faligndata(vis_ld_u8_i(tt, 0), s2); |
| 211 | |
| 212 | cx = x >> MLIB_SHIFT; |
| 213 | tt = tsp + 2*cx + cx; |
| 214 | x -= dx; |
| 215 | s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); |
| 216 | s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); |
| 217 | s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); |
| 218 | |
| 219 | cx = x >> MLIB_SHIFT; |
| 220 | tt = tsp + 2*cx + cx; |
| 221 | x -= dx; |
| 222 | s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); |
| 223 | s1 = vis_faligndata(vis_ld_u8_i(tt, 1), s1); |
| 224 | s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); |
| 225 | |
| 226 | cx = x >> MLIB_SHIFT; |
| 227 | tt = tsp + 2*cx + cx; |
| 228 | x -= dx; |
| 229 | s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); |
| 230 | s1 = vis_faligndata(vis_ld_u8_i(tt, 1), s1); |
| 231 | s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); |
| 232 | |
| 233 | cx = x >> MLIB_SHIFT; |
| 234 | tt = tsp + 2*cx + cx; |
| 235 | x -= dx; |
| 236 | s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); |
| 237 | s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); |
| 238 | s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); |
| 239 | |
| 240 | cx = x >> MLIB_SHIFT; |
| 241 | tt = tsp + 2*cx + cx; |
| 242 | x -= dx; |
| 243 | s0 = vis_faligndata(vis_ld_u8_i(tt, 2), s0); |
| 244 | s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); |
| 245 | s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); |
| 246 | |
| 247 | cx = x >> MLIB_SHIFT; |
| 248 | tt = tsp + 2*cx + cx; |
| 249 | x += dx15; |
| 250 | s0 = vis_faligndata(vis_ld_u8_i(tt, 2), s0); |
| 251 | s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); |
| 252 | s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); |
| 253 | |
| 254 | ((mlib_d64*)dp)[0] = s0; |
| 255 | ((mlib_d64*)dp)[1] = s1; |
| 256 | ((mlib_d64*)dp)[2] = s2; |
| 257 | } |
| 258 | |
| 259 | x -= dx7; |
| 260 | |
| 261 | while (dp < dend) { |
| 262 | cx = x >> MLIB_SHIFT; |
| 263 | tt = tsp + 2*cx + cx; |
| 264 | dp[0] = tt[0]; |
| 265 | dp[1] = tt[1]; |
| 266 | dp[2] = tt[2]; |
| 267 | x += dx; |
| 268 | dp += 3; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | y0 = y; |
| 273 | y += dy; |
| 274 | dl = (void*)((mlib_u8*)dl + dst_stride); |
| 275 | tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); |
| 276 | } |
| 277 | |
| 278 | return MLIB_SUCCESS; |
| 279 | } |
| 280 | |
| 281 | /***************************************************************/ |
| 282 | |
| 283 | mlib_status mlib_ImageZoom_S16_3_Nearest(mlib_work_image *param) |
| 284 | { |
| 285 | VARIABLE(mlib_s16); |
| 286 | mlib_s16 *dl = dp, *tsp, *tt; |
| 287 | mlib_s32 cx, y0 = -1, dx3 = 3*dx, dx7 = 4*dx + dx3; |
| 288 | |
| 289 | tsp = sp; |
| 290 | y = GetElemSubStruct(current, srcY) & MLIB_MASK; |
| 291 | |
| 292 | for (j = 0; j < height; j++) { |
| 293 | |
| 294 | if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { |
| 295 | mlib_ImageCopy_na((void*)((mlib_u8*)dl - dst_stride), (void*)dl, 6*width); |
| 296 | } |
| 297 | else { |
| 298 | mlib_s16 *dp = dl, *dend = dl + 3*width; |
| 299 | |
| 300 | vis_write_gsr(6); |
| 301 | x = GetElemSubStruct(current, srcX) & MLIB_MASK; |
| 302 | |
| 303 | while (((mlib_addr)dp & 7) && (dp < dend)) { |
| 304 | cx = x >> MLIB_SHIFT; |
| 305 | tt = tsp + 2*cx + cx; |
| 306 | dp[0] = tt[0]; |
| 307 | dp[1] = tt[1]; |
| 308 | dp[2] = tt[2]; |
| 309 | x += dx; |
| 310 | dp += 3; |
| 311 | } |
| 312 | |
| 313 | x += dx3; |
| 314 | |
| 315 | #pragma pipeloop(0) |
| 316 | for (; dp <= dend - 12; dp += 12) { |
| 317 | mlib_d64 s0, s1, s2; |
| 318 | |
| 319 | cx = x >> MLIB_SHIFT; |
| 320 | tt = tsp + 2*cx + cx; |
| 321 | x -= dx; |
| 322 | s2 = vis_faligndata(vis_ld_u16_i(tt, 4), s2); |
| 323 | s2 = vis_faligndata(vis_ld_u16_i(tt, 2), s2); |
| 324 | s2 = vis_faligndata(vis_ld_u16_i(tt, 0), s2); |
| 325 | |
| 326 | cx = x >> MLIB_SHIFT; |
| 327 | tt = tsp + 2*cx + cx; |
| 328 | x -= dx; |
| 329 | s2 = vis_faligndata(vis_ld_u16_i(tt, 4), s2); |
| 330 | s1 = vis_faligndata(vis_ld_u16_i(tt, 2), s1); |
| 331 | s1 = vis_faligndata(vis_ld_u16_i(tt, 0), s1); |
| 332 | |
| 333 | cx = x >> MLIB_SHIFT; |
| 334 | tt = tsp + 2*cx + cx; |
| 335 | x -= dx; |
| 336 | s1 = vis_faligndata(vis_ld_u16_i(tt, 4), s1); |
| 337 | s1 = vis_faligndata(vis_ld_u16_i(tt, 2), s1); |
| 338 | s0 = vis_faligndata(vis_ld_u16_i(tt, 0), s0); |
| 339 | |
| 340 | cx = x >> MLIB_SHIFT; |
| 341 | tt = tsp + 2*cx + cx; |
| 342 | x += dx7; |
| 343 | s0 = vis_faligndata(vis_ld_u16_i(tt, 4), s0); |
| 344 | s0 = vis_faligndata(vis_ld_u16_i(tt, 2), s0); |
| 345 | s0 = vis_faligndata(vis_ld_u16_i(tt, 0), s0); |
| 346 | |
| 347 | ((mlib_d64*)dp)[0] = s0; |
| 348 | ((mlib_d64*)dp)[1] = s1; |
| 349 | ((mlib_d64*)dp)[2] = s2; |
| 350 | } |
| 351 | |
| 352 | x -= dx3; |
| 353 | |
| 354 | while (dp < dend) { |
| 355 | cx = x >> MLIB_SHIFT; |
| 356 | tt = tsp + 2*cx + cx; |
| 357 | dp[0] = tt[0]; |
| 358 | dp[1] = tt[1]; |
| 359 | dp[2] = tt[2]; |
| 360 | x += dx; |
| 361 | dp += 3; |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | y0 = y; |
| 366 | y += dy; |
| 367 | dl = (void*)((mlib_u8*)dl + dst_stride); |
| 368 | tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); |
| 369 | } |
| 370 | |
| 371 | return MLIB_SUCCESS; |
| 372 | } |
| 373 | |
| 374 | /***************************************************************/ |
| 375 | |
| 376 | mlib_status mlib_ImageZoom_S16_1_Nearest(mlib_work_image *param) |
| 377 | { |
| 378 | VARIABLE(mlib_u16); |
| 379 | mlib_u16 *dl = dp, *tsp; |
| 380 | mlib_s32 y0 = -1, dx3 = 3*dx, dx7 = 4*dx + dx3; |
| 381 | |
| 382 | tsp = sp; |
| 383 | y = GetElemSubStruct(current, srcY) & MLIB_MASK; |
| 384 | |
| 385 | for (j = 0; j < height; j++) { |
| 386 | |
| 387 | if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { |
| 388 | mlib_ImageCopy_na((void*)((mlib_u8*)dl - dst_stride), (void*)dl, 2*width); |
| 389 | } |
| 390 | else { |
| 391 | mlib_u16 *dp = dl, *dend = dl + width; |
| 392 | |
| 393 | vis_write_gsr(6); |
| 394 | x = GetElemSubStruct(current, srcX) & MLIB_MASK; |
| 395 | |
| 396 | while (((mlib_addr)dp & 7) && (dp < dend)) { |
| 397 | *dp++ = tsp[x >> MLIB_SHIFT]; |
| 398 | x += dx; |
| 399 | } |
| 400 | |
| 401 | x += dx3; |
| 402 | |
| 403 | #pragma pipeloop(0) |
| 404 | for (; dp <= dend - 4; dp += 4) { |
| 405 | mlib_d64 s0; |
| 406 | |
| 407 | s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); |
| 408 | x -= dx; |
| 409 | s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); |
| 410 | x -= dx; |
| 411 | s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); |
| 412 | x -= dx; |
| 413 | s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); |
| 414 | x += dx7; |
| 415 | |
| 416 | *(mlib_d64*)dp = s0; |
| 417 | } |
| 418 | |
| 419 | x -= dx3; |
| 420 | |
| 421 | while (dp < dend) { |
| 422 | *dp++ = tsp[x >> MLIB_SHIFT]; |
| 423 | x += dx; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | y0 = y; |
| 428 | y += dy; |
| 429 | dl = (void*)((mlib_u8*)dl + dst_stride); |
| 430 | tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); |
| 431 | } |
| 432 | |
| 433 | return MLIB_SUCCESS; |
| 434 | } |
| 435 | |
| 436 | /***************************************************************/ |