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 | * Internal functions for mlib_ImageAffine with bilinear filtering. |
| 30 | */ |
| 31 | |
| 32 | #include "mlib_ImageAffine.h" |
| 33 | |
| 34 | /***************************************************************/ |
| 35 | #define DTYPE mlib_f32 |
| 36 | #define FTYPE DTYPE |
| 37 | |
| 38 | #define FUN_NAME(CHAN) mlib_ImageAffine_f32_##CHAN##_bl |
| 39 | |
| 40 | /***************************************************************/ |
| 41 | mlib_status FUN_NAME(1ch)(mlib_affine_param *param) |
| 42 | { |
| 43 | DECLAREVAR_BL(); |
| 44 | DTYPE *dstLineEnd; |
| 45 | FTYPE scale = ONE / MLIB_PREC; |
| 46 | mlib_s32 srcYStride1; |
| 47 | |
| 48 | srcYStride /= sizeof(DTYPE); |
| 49 | srcYStride1 = srcYStride + 1; |
| 50 | |
| 51 | for (j = yStart; j <= yFinish; j++) { |
| 52 | FTYPE t, u, k0, k1, k2, k3; |
| 53 | FTYPE a00_0, a01_0, a10_0, a11_0; |
| 54 | FTYPE pix0; |
| 55 | |
| 56 | CLIP(1); |
| 57 | dstLineEnd = (DTYPE *) dstData + xRight; |
| 58 | |
| 59 | t = (X & MLIB_MASK) * scale; |
| 60 | u = (Y & MLIB_MASK) * scale; |
| 61 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 62 | Y += dY; |
| 63 | xSrc = X >> MLIB_SHIFT; |
| 64 | X += dX; |
| 65 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + xSrc; |
| 66 | k3 = t * u; |
| 67 | k2 = (ONE - t) * u; |
| 68 | k1 = t * (ONE - u); |
| 69 | k0 = (ONE - t) * (ONE - u); |
| 70 | a00_0 = srcPixelPtr[0]; |
| 71 | a01_0 = srcPixelPtr[1]; |
| 72 | a10_0 = srcPixelPtr[srcYStride]; |
| 73 | a11_0 = srcPixelPtr[srcYStride1]; |
| 74 | |
| 75 | for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { |
| 76 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 77 | t = (X & MLIB_MASK) * scale; |
| 78 | u = (Y & MLIB_MASK) * scale; |
| 79 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 80 | Y += dY; |
| 81 | xSrc = X >> MLIB_SHIFT; |
| 82 | X += dX; |
| 83 | srcPixelPtr = *(DTYPE **) ((mlib_u8 *) lineAddr + ySrc) + xSrc; |
| 84 | k3 = t * u; |
| 85 | k2 = (ONE - t) * u; |
| 86 | k1 = t * (ONE - u); |
| 87 | k0 = (ONE - t) * (ONE - u); |
| 88 | a00_0 = srcPixelPtr[0]; |
| 89 | a01_0 = srcPixelPtr[1]; |
| 90 | a10_0 = srcPixelPtr[srcYStride]; |
| 91 | a11_0 = srcPixelPtr[srcYStride1]; |
| 92 | dstPixelPtr[0] = pix0; |
| 93 | } |
| 94 | |
| 95 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 96 | dstPixelPtr[0] = pix0; |
| 97 | } |
| 98 | |
| 99 | return MLIB_SUCCESS; |
| 100 | } |
| 101 | |
| 102 | /***************************************************************/ |
| 103 | mlib_status FUN_NAME(2ch)(mlib_affine_param *param) |
| 104 | { |
| 105 | DECLAREVAR_BL(); |
| 106 | DTYPE *dstLineEnd; |
| 107 | FTYPE scale = ONE / MLIB_PREC; |
| 108 | |
| 109 | for (j = yStart; j <= yFinish; j++) { |
| 110 | DTYPE *srcPixelPtr2; |
| 111 | FTYPE t, u, k0, k1, k2, k3; |
| 112 | FTYPE a00_0, a01_0, a10_0, a11_0; |
| 113 | FTYPE a00_1, a01_1, a10_1, a11_1; |
| 114 | FTYPE pix0, pix1; |
| 115 | |
| 116 | CLIP(2); |
| 117 | dstLineEnd = (DTYPE *) dstData + 2 * xRight; |
| 118 | |
| 119 | t = (X & MLIB_MASK) * scale; |
| 120 | u = (Y & MLIB_MASK) * scale; |
| 121 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 122 | Y += dY; |
| 123 | xSrc = X >> MLIB_SHIFT; |
| 124 | X += dX; |
| 125 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| 126 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 127 | k3 = t * u; |
| 128 | k2 = (ONE - t) * u; |
| 129 | k1 = t * (ONE - u); |
| 130 | k0 = (ONE - t) * (ONE - u); |
| 131 | a00_0 = srcPixelPtr[0]; |
| 132 | a00_1 = srcPixelPtr[1]; |
| 133 | a01_0 = srcPixelPtr[2]; |
| 134 | a01_1 = srcPixelPtr[3]; |
| 135 | a10_0 = srcPixelPtr2[0]; |
| 136 | a10_1 = srcPixelPtr2[1]; |
| 137 | a11_0 = srcPixelPtr2[2]; |
| 138 | a11_1 = srcPixelPtr2[3]; |
| 139 | |
| 140 | for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { |
| 141 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 142 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 143 | t = (X & MLIB_MASK) * scale; |
| 144 | u = (Y & MLIB_MASK) * scale; |
| 145 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 146 | Y += dY; |
| 147 | xSrc = X >> MLIB_SHIFT; |
| 148 | X += dX; |
| 149 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| 150 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 151 | k3 = t * u; |
| 152 | k2 = (ONE - t) * u; |
| 153 | k1 = t * (ONE - u); |
| 154 | k0 = (ONE - t) * (ONE - u); |
| 155 | a01_0 = srcPixelPtr[2]; |
| 156 | a01_1 = srcPixelPtr[3]; |
| 157 | a00_0 = srcPixelPtr[0]; |
| 158 | a00_1 = srcPixelPtr[1]; |
| 159 | a10_0 = srcPixelPtr2[0]; |
| 160 | a10_1 = srcPixelPtr2[1]; |
| 161 | a11_0 = srcPixelPtr2[2]; |
| 162 | a11_1 = srcPixelPtr2[3]; |
| 163 | dstPixelPtr[0] = pix0; |
| 164 | dstPixelPtr[1] = pix1; |
| 165 | } |
| 166 | |
| 167 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 168 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 169 | dstPixelPtr[0] = pix0; |
| 170 | dstPixelPtr[1] = pix1; |
| 171 | } |
| 172 | |
| 173 | return MLIB_SUCCESS; |
| 174 | } |
| 175 | |
| 176 | /***************************************************************/ |
| 177 | mlib_status FUN_NAME(3ch)(mlib_affine_param *param) |
| 178 | { |
| 179 | DECLAREVAR_BL(); |
| 180 | DTYPE *dstLineEnd; |
| 181 | FTYPE scale = ONE / MLIB_PREC; |
| 182 | |
| 183 | for (j = yStart; j <= yFinish; j++) { |
| 184 | DTYPE *srcPixelPtr2; |
| 185 | FTYPE t, u, k0, k1, k2, k3; |
| 186 | FTYPE a00_0, a01_0, a10_0, a11_0; |
| 187 | FTYPE a00_1, a01_1, a10_1, a11_1; |
| 188 | FTYPE a00_2, a01_2, a10_2, a11_2; |
| 189 | FTYPE pix0, pix1, pix2; |
| 190 | |
| 191 | CLIP(3); |
| 192 | dstLineEnd = (DTYPE *) dstData + 3 * xRight; |
| 193 | |
| 194 | t = (X & MLIB_MASK) * scale; |
| 195 | u = (Y & MLIB_MASK) * scale; |
| 196 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 197 | Y += dY; |
| 198 | xSrc = X >> MLIB_SHIFT; |
| 199 | X += dX; |
| 200 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| 201 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 202 | k3 = t * u; |
| 203 | k2 = (ONE - t) * u; |
| 204 | k1 = t * (ONE - u); |
| 205 | k0 = (ONE - t) * (ONE - u); |
| 206 | a00_0 = srcPixelPtr[0]; |
| 207 | a00_1 = srcPixelPtr[1]; |
| 208 | a00_2 = srcPixelPtr[2]; |
| 209 | a01_0 = srcPixelPtr[3]; |
| 210 | a01_1 = srcPixelPtr[4]; |
| 211 | a01_2 = srcPixelPtr[5]; |
| 212 | a10_0 = srcPixelPtr2[0]; |
| 213 | a10_1 = srcPixelPtr2[1]; |
| 214 | a10_2 = srcPixelPtr2[2]; |
| 215 | a11_0 = srcPixelPtr2[3]; |
| 216 | a11_1 = srcPixelPtr2[4]; |
| 217 | a11_2 = srcPixelPtr2[5]; |
| 218 | |
| 219 | for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { |
| 220 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 221 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 222 | pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2; |
| 223 | t = (X & MLIB_MASK) * scale; |
| 224 | u = (Y & MLIB_MASK) * scale; |
| 225 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 226 | Y += dY; |
| 227 | xSrc = X >> MLIB_SHIFT; |
| 228 | X += dX; |
| 229 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| 230 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 231 | k3 = t * u; |
| 232 | k2 = (ONE - t) * u; |
| 233 | k1 = t * (ONE - u); |
| 234 | k0 = (ONE - t) * (ONE - u); |
| 235 | a01_0 = srcPixelPtr[3]; |
| 236 | a01_1 = srcPixelPtr[4]; |
| 237 | a01_2 = srcPixelPtr[5]; |
| 238 | a00_0 = srcPixelPtr[0]; |
| 239 | a00_1 = srcPixelPtr[1]; |
| 240 | a00_2 = srcPixelPtr[2]; |
| 241 | a10_0 = srcPixelPtr2[0]; |
| 242 | a10_1 = srcPixelPtr2[1]; |
| 243 | a10_2 = srcPixelPtr2[2]; |
| 244 | a11_0 = srcPixelPtr2[3]; |
| 245 | a11_1 = srcPixelPtr2[4]; |
| 246 | a11_2 = srcPixelPtr2[5]; |
| 247 | dstPixelPtr[0] = pix0; |
| 248 | dstPixelPtr[1] = pix1; |
| 249 | dstPixelPtr[2] = pix2; |
| 250 | } |
| 251 | |
| 252 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 253 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 254 | pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2; |
| 255 | dstPixelPtr[0] = pix0; |
| 256 | dstPixelPtr[1] = pix1; |
| 257 | dstPixelPtr[2] = pix2; |
| 258 | } |
| 259 | |
| 260 | return MLIB_SUCCESS; |
| 261 | } |
| 262 | |
| 263 | /***************************************************************/ |
| 264 | mlib_status FUN_NAME(4ch)(mlib_affine_param *param) |
| 265 | { |
| 266 | DECLAREVAR_BL(); |
| 267 | DTYPE *dstLineEnd; |
| 268 | FTYPE scale = ONE / MLIB_PREC; |
| 269 | |
| 270 | for (j = yStart; j <= yFinish; j++) { |
| 271 | DTYPE *srcPixelPtr2; |
| 272 | FTYPE t, u, k0, k1, k2, k3; |
| 273 | FTYPE a00_0, a01_0, a10_0, a11_0; |
| 274 | FTYPE a00_1, a01_1, a10_1, a11_1; |
| 275 | FTYPE a00_2, a01_2, a10_2, a11_2; |
| 276 | FTYPE a00_3, a01_3, a10_3, a11_3; |
| 277 | FTYPE pix0, pix1, pix2, pix3; |
| 278 | |
| 279 | CLIP(4); |
| 280 | dstLineEnd = (DTYPE *) dstData + 4 * xRight; |
| 281 | |
| 282 | t = (X & MLIB_MASK) * scale; |
| 283 | u = (Y & MLIB_MASK) * scale; |
| 284 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 285 | Y += dY; |
| 286 | xSrc = X >> MLIB_SHIFT; |
| 287 | X += dX; |
| 288 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc; |
| 289 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 290 | k3 = t * u; |
| 291 | k2 = (ONE - t) * u; |
| 292 | k1 = t * (ONE - u); |
| 293 | k0 = (ONE - t) * (ONE - u); |
| 294 | a00_0 = srcPixelPtr[0]; |
| 295 | a00_1 = srcPixelPtr[1]; |
| 296 | a00_2 = srcPixelPtr[2]; |
| 297 | a00_3 = srcPixelPtr[3]; |
| 298 | a01_0 = srcPixelPtr[4]; |
| 299 | a01_1 = srcPixelPtr[5]; |
| 300 | a01_2 = srcPixelPtr[6]; |
| 301 | a01_3 = srcPixelPtr[7]; |
| 302 | a10_0 = srcPixelPtr2[0]; |
| 303 | a10_1 = srcPixelPtr2[1]; |
| 304 | a10_2 = srcPixelPtr2[2]; |
| 305 | a10_3 = srcPixelPtr2[3]; |
| 306 | a11_0 = srcPixelPtr2[4]; |
| 307 | a11_1 = srcPixelPtr2[5]; |
| 308 | a11_2 = srcPixelPtr2[6]; |
| 309 | a11_3 = srcPixelPtr2[7]; |
| 310 | |
| 311 | for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { |
| 312 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 313 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 314 | pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2; |
| 315 | pix3 = k0 * a00_3 + k1 * a01_3 + k2 * a10_3 + k3 * a11_3; |
| 316 | t = (X & MLIB_MASK) * scale; |
| 317 | u = (Y & MLIB_MASK) * scale; |
| 318 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 319 | Y += dY; |
| 320 | xSrc = X >> (MLIB_SHIFT - 2); |
| 321 | X += dX; |
| 322 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + (xSrc & ~3); |
| 323 | srcPixelPtr2 = (DTYPE *) ((mlib_u8 *) srcPixelPtr + srcYStride); |
| 324 | k3 = t * u; |
| 325 | k2 = (ONE - t) * u; |
| 326 | k1 = t * (ONE - u); |
| 327 | k0 = (ONE - t) * (ONE - u); |
| 328 | a00_3 = srcPixelPtr[3]; |
| 329 | a01_3 = srcPixelPtr[7]; |
| 330 | a10_3 = srcPixelPtr2[3]; |
| 331 | a11_3 = srcPixelPtr2[7]; |
| 332 | a00_0 = srcPixelPtr[0]; |
| 333 | a00_1 = srcPixelPtr[1]; |
| 334 | a00_2 = srcPixelPtr[2]; |
| 335 | a01_0 = srcPixelPtr[4]; |
| 336 | a01_1 = srcPixelPtr[5]; |
| 337 | a01_2 = srcPixelPtr[6]; |
| 338 | a10_0 = srcPixelPtr2[0]; |
| 339 | a10_1 = srcPixelPtr2[1]; |
| 340 | a10_2 = srcPixelPtr2[2]; |
| 341 | a11_0 = srcPixelPtr2[4]; |
| 342 | a11_1 = srcPixelPtr2[5]; |
| 343 | a11_2 = srcPixelPtr2[6]; |
| 344 | dstPixelPtr[0] = pix0; |
| 345 | dstPixelPtr[1] = pix1; |
| 346 | dstPixelPtr[2] = pix2; |
| 347 | dstPixelPtr[3] = pix3; |
| 348 | } |
| 349 | |
| 350 | pix0 = k0 * a00_0 + k1 * a01_0 + k2 * a10_0 + k3 * a11_0; |
| 351 | pix1 = k0 * a00_1 + k1 * a01_1 + k2 * a10_1 + k3 * a11_1; |
| 352 | pix2 = k0 * a00_2 + k1 * a01_2 + k2 * a10_2 + k3 * a11_2; |
| 353 | pix3 = k0 * a00_3 + k1 * a01_3 + k2 * a10_3 + k3 * a11_3; |
| 354 | dstPixelPtr[0] = pix0; |
| 355 | dstPixelPtr[1] = pix1; |
| 356 | dstPixelPtr[2] = pix2; |
| 357 | dstPixelPtr[3] = pix3; |
| 358 | } |
| 359 | |
| 360 | return MLIB_SUCCESS; |
| 361 | } |
| 362 | |
| 363 | /***************************************************************/ |