J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001-2007 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 | package sun.java2d.pipe; |
| 27 | |
| 28 | import java.awt.AlphaComposite; |
| 29 | import java.awt.Color; |
| 30 | import java.awt.Graphics2D; |
| 31 | import java.awt.Image; |
| 32 | import java.awt.Rectangle; |
| 33 | import java.awt.Transparency; |
| 34 | import java.awt.geom.AffineTransform; |
| 35 | import java.awt.geom.NoninvertibleTransformException; |
| 36 | import java.awt.image.AffineTransformOp; |
| 37 | import java.awt.image.BufferedImage; |
| 38 | import java.awt.image.BufferedImageOp; |
| 39 | import java.awt.image.ColorModel; |
| 40 | import java.awt.image.DataBuffer; |
| 41 | import java.awt.image.DirectColorModel; |
| 42 | import java.awt.image.ImageObserver; |
| 43 | import java.awt.image.IndexColorModel; |
| 44 | import java.awt.image.Raster; |
| 45 | import java.awt.image.VolatileImage; |
| 46 | import java.awt.image.WritableRaster; |
| 47 | import java.awt.image.ImagingOpException; |
| 48 | import sun.awt.SunHints; |
| 49 | import sun.awt.image.ImageRepresentation; |
| 50 | import sun.awt.image.ToolkitImage; |
| 51 | import sun.java2d.InvalidPipeException; |
| 52 | import sun.java2d.SunGraphics2D; |
| 53 | import sun.java2d.SurfaceData; |
| 54 | import sun.java2d.loops.Blit; |
| 55 | import sun.java2d.loops.BlitBg; |
| 56 | import sun.java2d.loops.TransformHelper; |
| 57 | import sun.java2d.loops.MaskBlit; |
| 58 | import sun.java2d.loops.CompositeType; |
| 59 | import sun.java2d.loops.ScaledBlit; |
| 60 | import sun.java2d.loops.SurfaceType; |
| 61 | |
| 62 | public class DrawImage implements DrawImagePipe |
| 63 | { |
| 64 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 65 | int x, int y, |
| 66 | Color bgColor) |
| 67 | { |
| 68 | int imgw = img.getWidth(null); |
| 69 | int imgh = img.getHeight(null); |
| 70 | if (isSimpleTranslate(sg)) { |
| 71 | return renderImageCopy(sg, img, bgColor, |
| 72 | x + sg.transX, y + sg.transY, |
| 73 | 0, 0, imgw, imgh); |
| 74 | } |
| 75 | AffineTransform atfm = sg.transform; |
| 76 | if ((x | y) != 0) { |
| 77 | atfm = new AffineTransform(atfm); |
| 78 | atfm.translate(x, y); |
| 79 | } |
| 80 | transformImage(sg, img, atfm, sg.interpolationType, |
| 81 | 0, 0, imgw, imgh, bgColor); |
| 82 | return true; |
| 83 | } |
| 84 | |
| 85 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 86 | int dx, int dy, int sx, int sy, int w, int h, |
| 87 | Color bgColor) |
| 88 | { |
| 89 | if (isSimpleTranslate(sg)) { |
| 90 | return renderImageCopy(sg, img, bgColor, |
| 91 | dx + sg.transX, dy + sg.transY, |
| 92 | sx, sy, w, h); |
| 93 | } |
| 94 | scaleImage(sg, img, dx, dy, (dx + w), (dy + h), |
| 95 | sx, sy, (sx + w), (sy + h), bgColor); |
| 96 | return true; |
| 97 | } |
| 98 | |
| 99 | public boolean scaleImage(SunGraphics2D sg, Image img, int x, int y, |
| 100 | int width, int height, |
| 101 | Color bgColor) |
| 102 | { |
| 103 | int imgw = img.getWidth(null); |
| 104 | int imgh = img.getHeight(null); |
| 105 | // Only accelerate scale if: |
| 106 | // - w/h positive values |
| 107 | // - sg transform integer translate/identity only |
| 108 | // - no bgColor in operation |
| 109 | if ((width > 0) && (height > 0) && isSimpleTranslate(sg)) { |
| 110 | double dx1 = x + sg.transX; |
| 111 | double dy1 = y + sg.transY; |
| 112 | double dx2 = dx1 + width; |
| 113 | double dy2 = dy1 + height; |
| 114 | if (renderImageScale(sg, img, bgColor, sg.interpolationType, |
| 115 | 0, 0, imgw, imgh, |
| 116 | dx1, dy1, dx2, dy2)) |
| 117 | { |
| 118 | return true; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | AffineTransform atfm = sg.transform; |
| 123 | if ((x | y) != 0 || width != imgw || height != imgh) { |
| 124 | atfm = new AffineTransform(atfm); |
| 125 | atfm.translate(x, y); |
| 126 | atfm.scale(((double)width)/imgw, ((double)height)/imgh); |
| 127 | } |
| 128 | transformImage(sg, img, atfm, sg.interpolationType, |
| 129 | 0, 0, imgw, imgh, bgColor); |
| 130 | return true; |
| 131 | } |
| 132 | |
| 133 | /* |
| 134 | * This method is only called in those circumstances where the |
| 135 | * operation has a non-null secondary transform specfied. Its |
| 136 | * role is to check for various optimizations based on the types |
| 137 | * of both the secondary and SG2D transforms and to do some |
| 138 | * quick calculations to avoid having to combine the transforms |
| 139 | * and/or to call a more generalized method. |
| 140 | */ |
| 141 | protected void transformImage(SunGraphics2D sg, Image img, int x, int y, |
| 142 | AffineTransform extraAT, int interpType) |
| 143 | { |
| 144 | int txtype = extraAT.getType(); |
| 145 | int imgw = img.getWidth(null); |
| 146 | int imgh = img.getHeight(null); |
| 147 | boolean checkfinalxform; |
| 148 | |
| 149 | if (sg.transformState <= sg.TRANSFORM_ANY_TRANSLATE && |
| 150 | (txtype == AffineTransform.TYPE_IDENTITY || |
| 151 | txtype == AffineTransform.TYPE_TRANSLATION)) |
| 152 | { |
| 153 | // First optimization - both are some kind of translate |
| 154 | |
| 155 | // Combine the translations and check if interpolation is necessary. |
| 156 | double tx = extraAT.getTranslateX(); |
| 157 | double ty = extraAT.getTranslateY(); |
| 158 | tx += sg.transform.getTranslateX(); |
| 159 | ty += sg.transform.getTranslateY(); |
| 160 | int itx = (int) Math.floor(tx + 0.5); |
| 161 | int ity = (int) Math.floor(ty + 0.5); |
| 162 | if (interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR || |
| 163 | (closeToInteger(itx, tx) && closeToInteger(ity, ty))) |
| 164 | { |
| 165 | renderImageCopy(sg, img, null, x+itx, y+ity, 0, 0, imgw, imgh); |
| 166 | return; |
| 167 | } |
| 168 | checkfinalxform = false; |
| 169 | } else if (sg.transformState <= sg.TRANSFORM_TRANSLATESCALE && |
| 170 | ((txtype & (AffineTransform.TYPE_FLIP | |
| 171 | AffineTransform.TYPE_MASK_ROTATION | |
| 172 | AffineTransform.TYPE_GENERAL_TRANSFORM)) == 0)) |
| 173 | { |
| 174 | // Second optimization - both are some kind of translate or scale |
| 175 | |
| 176 | // Combine the scales and check if interpolation is necessary. |
| 177 | |
| 178 | // Transform source bounds by extraAT, |
| 179 | // then translate the bounds again by x, y |
| 180 | // then transform the bounds again by sg.transform |
| 181 | double coords[] = new double[] { |
| 182 | 0, 0, imgw, imgh, |
| 183 | }; |
| 184 | extraAT.transform(coords, 0, coords, 0, 2); |
| 185 | coords[0] += x; |
| 186 | coords[1] += y; |
| 187 | coords[2] += x; |
| 188 | coords[3] += y; |
| 189 | sg.transform.transform(coords, 0, coords, 0, 2); |
| 190 | |
| 191 | if (tryCopyOrScale(sg, img, 0, 0, imgw, imgh, |
| 192 | null, interpType, coords)) |
| 193 | { |
| 194 | return; |
| 195 | } |
| 196 | checkfinalxform = false; |
| 197 | } else { |
| 198 | checkfinalxform = true; |
| 199 | } |
| 200 | |
| 201 | // Begin Transform |
| 202 | AffineTransform tx = new AffineTransform(sg.transform); |
| 203 | tx.translate(x, y); |
| 204 | tx.concatenate(extraAT); |
| 205 | |
| 206 | // Do not try any more optimizations if either of the cases |
| 207 | // above was tried as we have already verified that the |
| 208 | // resulting transform will not simplify. |
| 209 | if (checkfinalxform) { |
| 210 | // In this case neither of the above simple transform |
| 211 | // pairs was found so we will do some final tests on |
| 212 | // the final rendering transform which may be the |
| 213 | // simple product of two complex transforms. |
| 214 | transformImage(sg, img, tx, interpType, 0, 0, imgw, imgh, null); |
| 215 | } else { |
| 216 | renderImageXform(sg, img, tx, interpType, 0, 0, imgw, imgh, null); |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | /* |
| 221 | * This method is called with a final rendering transform that |
| 222 | * has combined all of the information about the Graphics2D |
| 223 | * transform attribute with the transformations specified by |
| 224 | * the arguments to the drawImage call. |
| 225 | * Its role is to see if the combined transform ends up being |
| 226 | * acceleratable by either a renderImageCopy or renderImageScale |
| 227 | * once all of the math is done. |
| 228 | * |
| 229 | * Note: The transform supplied here has an origin that is |
| 230 | * already adjusted to point to the device location where |
| 231 | * the (sx1, sy1) location of the source image should be placed. |
| 232 | */ |
| 233 | protected void transformImage(SunGraphics2D sg, Image img, |
| 234 | AffineTransform tx, int interpType, |
| 235 | int sx1, int sy1, int sx2, int sy2, |
| 236 | Color bgColor) |
| 237 | { |
| 238 | // Transform 3 source corners by tx and analyze them |
| 239 | // for simplified operations (Copy or Scale). Using |
| 240 | // 3 points lets us analyze any kind of transform, |
| 241 | // even transforms that involve very tiny amounts of |
| 242 | // rotation or skew to see if they degenerate to a |
| 243 | // simple scale or copy operation within the allowable |
| 244 | // error bounds. |
| 245 | // Note that we use (0,0,w,h) instead of (sx1,sy1,sx2,sy2) |
| 246 | // because the transform is already translated such that |
| 247 | // the origin is where sx1, sy1 should go. |
| 248 | double coords[] = new double[6]; |
| 249 | /* index: 0 1 2 3 4 5 */ |
| 250 | /* coord: (0, 0), (w, h), (0, h) */ |
| 251 | coords[2] = sx2 - sx1; |
| 252 | coords[3] = coords[5] = sy2 - sy1; |
| 253 | tx.transform(coords, 0, coords, 0, 3); |
| 254 | // First test if the X coords of the transformed UL |
| 255 | // and LL points match and that the Y coords of the |
| 256 | // transformed LR and LL points also match. |
| 257 | // If they do then it is a "rectilinear" transform and |
| 258 | // tryCopyOrScale will make sure it is upright and |
| 259 | // integer-based. |
| 260 | if (Math.abs(coords[0] - coords[4]) < MAX_TX_ERROR && |
| 261 | Math.abs(coords[3] - coords[5]) < MAX_TX_ERROR && |
| 262 | tryCopyOrScale(sg, img, sx1, sy1, sx2, sy2, |
| 263 | bgColor, interpType, coords)) |
| 264 | { |
| 265 | return; |
| 266 | } |
| 267 | |
| 268 | renderImageXform(sg, img, tx, interpType, sx1, sy1, sx2, sy2, bgColor); |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * Check the bounding coordinates of the transformed source |
| 273 | * image to see if they fall on integer coordinates such |
| 274 | * that they will cause no interpolation anomalies if we |
| 275 | * use our simplified Blit or ScaledBlit operations instead |
| 276 | * of a full transform operation. |
| 277 | */ |
| 278 | protected boolean tryCopyOrScale(SunGraphics2D sg, |
| 279 | Image img, |
| 280 | int sx1, int sy1, |
| 281 | int sx2, int sy2, |
| 282 | Color bgColor, int interpType, |
| 283 | double coords[]) |
| 284 | { |
| 285 | double dx = coords[0]; |
| 286 | double dy = coords[1]; |
| 287 | double dw = coords[2] - dx; |
| 288 | double dh = coords[3] - dy; |
| 289 | // First check if width and height are very close to img w&h. |
| 290 | if (closeToInteger(sx2-sx1, dw) && closeToInteger(sy2-sy1, dh)) { |
| 291 | // Round location to nearest pixel and then test |
| 292 | // if it will cause interpolation anomalies. |
| 293 | int idx = (int) Math.floor(dx + 0.5); |
| 294 | int idy = (int) Math.floor(dy + 0.5); |
| 295 | if (interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR || |
| 296 | (closeToInteger(idx, dx) && closeToInteger(idy, dy))) |
| 297 | { |
| 298 | renderImageCopy(sg, img, bgColor, |
| 299 | idx, idy, |
| 300 | sx1, sy1, sx2-sx1, sy2-sy1); |
| 301 | return true; |
| 302 | } |
| 303 | } |
| 304 | // (For now) We can only use our ScaledBlits if the image |
| 305 | // is upright (i.e. dw & dh both > 0) |
| 306 | if (dw > 0 && dh > 0) { |
| 307 | if (renderImageScale(sg, img, bgColor, interpType, |
| 308 | sx1, sy1, sx2, sy2, |
| 309 | coords[0], coords[1], coords[2], coords[3])) |
| 310 | { |
| 311 | return true; |
| 312 | } |
| 313 | } |
| 314 | return false; |
| 315 | } |
| 316 | |
| 317 | /* |
| 318 | * Return a BufferedImage of the requested type with the indicated |
| 319 | * subimage of the original image located at 0,0 in the new image. |
| 320 | * If a bgColor is supplied, composite the original image over that |
| 321 | * color with a SrcOver operation, otherwise make a SrcNoEa copy. |
| 322 | */ |
| 323 | BufferedImage makeBufferedImage(Image img, Color bgColor, int type, |
| 324 | int sx1, int sy1, int sx2, int sy2) |
| 325 | { |
| 326 | BufferedImage bimg = new BufferedImage(sx2-sx1, sy2-sy1, type); |
| 327 | Graphics2D g2d = bimg.createGraphics(); |
| 328 | g2d.setComposite(AlphaComposite.Src); |
| 329 | if (bgColor != null) { |
| 330 | g2d.setColor(bgColor); |
| 331 | g2d.fillRect(0, 0, sx2-sx1, sy2-sy1); |
| 332 | g2d.setComposite(AlphaComposite.SrcOver); |
| 333 | } |
| 334 | g2d.drawImage(img, -sx1, -sy1, null); |
| 335 | g2d.dispose(); |
| 336 | return bimg; |
| 337 | } |
| 338 | |
| 339 | protected void renderImageXform(SunGraphics2D sg, Image img, |
| 340 | AffineTransform tx, int interpType, |
| 341 | int sx1, int sy1, int sx2, int sy2, |
| 342 | Color bgColor) |
| 343 | { |
| 344 | Region clip = sg.getCompClip(); |
| 345 | SurfaceData dstData = sg.surfaceData; |
| 346 | SurfaceData srcData = dstData.getSourceSurfaceData(img, |
| 347 | sg.TRANSFORM_GENERIC, |
| 348 | sg.imageComp, |
| 349 | bgColor); |
| 350 | |
| 351 | if (srcData == null) { |
| 352 | img = getBufferedImage(img); |
| 353 | srcData = dstData.getSourceSurfaceData(img, |
| 354 | sg.TRANSFORM_GENERIC, |
| 355 | sg.imageComp, |
| 356 | bgColor); |
| 357 | if (srcData == null) { |
| 358 | // REMIND: Is this correct? Can this happen? |
| 359 | return; |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | if (isBgOperation(srcData, bgColor)) { |
| 364 | // We cannot perform bg operations during transform so make |
| 365 | // an opaque temp image with the appropriate background |
| 366 | // and work from there. |
| 367 | img = makeBufferedImage(img, bgColor, BufferedImage.TYPE_INT_RGB, |
| 368 | sx1, sy1, sx2, sy2); |
| 369 | // Temp image has appropriate subimage at 0,0 now. |
| 370 | sx2 -= sx1; |
| 371 | sy2 -= sy1; |
| 372 | sx1 = sy1 = 0; |
| 373 | |
| 374 | srcData = dstData.getSourceSurfaceData(img, |
| 375 | sg.TRANSFORM_GENERIC, |
| 376 | sg.imageComp, |
| 377 | bgColor); |
| 378 | } |
| 379 | |
| 380 | SurfaceType srcType = srcData.getSurfaceType(); |
| 381 | TransformHelper helper = TransformHelper.getFromCache(srcType); |
| 382 | |
| 383 | if (helper == null) { |
| 384 | /* We have no helper for this source image type. |
| 385 | * But we know that we do have helpers for both RGB and ARGB, |
| 386 | * so convert to one of those types depending on transparency. |
| 387 | * ARGB_PRE might be a better choice if the source image has |
| 388 | * alpha, but it may cause some recursion here since we only |
| 389 | * tend to have converters that convert to ARGB. |
| 390 | */ |
| 391 | int type = ((srcData.getTransparency() == Transparency.OPAQUE) |
| 392 | ? BufferedImage.TYPE_INT_RGB |
| 393 | : BufferedImage.TYPE_INT_ARGB); |
| 394 | img = makeBufferedImage(img, null, type, sx1, sy1, sx2, sy2); |
| 395 | // Temp image has appropriate subimage at 0,0 now. |
| 396 | sx2 -= sx1; |
| 397 | sy2 -= sy1; |
| 398 | sx1 = sy1 = 0; |
| 399 | |
| 400 | srcData = dstData.getSourceSurfaceData(img, |
| 401 | sg.TRANSFORM_GENERIC, |
| 402 | sg.imageComp, |
| 403 | null); |
| 404 | srcType = srcData.getSurfaceType(); |
| 405 | helper = TransformHelper.getFromCache(srcType); |
| 406 | // assert(helper != null); |
| 407 | } |
| 408 | |
| 409 | AffineTransform itx; |
| 410 | try { |
| 411 | itx = tx.createInverse(); |
| 412 | } catch (NoninvertibleTransformException e) { |
| 413 | // Non-invertible transform means no output |
| 414 | return; |
| 415 | } |
| 416 | |
| 417 | /* |
| 418 | * Find the maximum bounds on the destination that will be |
| 419 | * affected by the transformed source. First, transform all |
| 420 | * four corners of the source and then min and max the resulting |
| 421 | * destination coordinates of the transformed corners. |
| 422 | * Note that tx already has the offset to sx1,sy1 accounted |
| 423 | * for so we use the box (0, 0, sx2-sx1, sy2-sy1) as the |
| 424 | * source coordinates. |
| 425 | */ |
| 426 | double coords[] = new double[8]; |
| 427 | /* corner: UL UR LL LR */ |
| 428 | /* index: 0 1 2 3 4 5 6 7 */ |
| 429 | /* coord: (0, 0), (w, 0), (0, h), (w, h) */ |
| 430 | coords[2] = coords[6] = sx2 - sx1; |
| 431 | coords[5] = coords[7] = sy2 - sy1; |
| 432 | tx.transform(coords, 0, coords, 0, 4); |
| 433 | double ddx1, ddy1, ddx2, ddy2; |
| 434 | ddx1 = ddx2 = coords[0]; |
| 435 | ddy1 = ddy2 = coords[1]; |
| 436 | for (int i = 2; i < coords.length; i += 2) { |
| 437 | double d = coords[i]; |
| 438 | if (ddx1 > d) ddx1 = d; |
| 439 | else if (ddx2 < d) ddx2 = d; |
| 440 | d = coords[i+1]; |
| 441 | if (ddy1 > d) ddy1 = d; |
| 442 | else if (ddy2 < d) ddy2 = d; |
| 443 | } |
| 444 | int dx1 = (int) Math.floor(ddx1); |
| 445 | int dy1 = (int) Math.floor(ddy1); |
| 446 | int dx2 = (int) Math.ceil(ddx2); |
| 447 | int dy2 = (int) Math.ceil(ddy2); |
| 448 | |
| 449 | SurfaceType dstType = dstData.getSurfaceType(); |
| 450 | MaskBlit maskblit; |
| 451 | Blit blit; |
| 452 | if (sg.compositeState <= sg.COMP_ALPHA) { |
| 453 | /* NOTE: We either have, or we can make, |
| 454 | * a MaskBlit for any alpha composite type |
| 455 | */ |
| 456 | maskblit = MaskBlit.getFromCache(SurfaceType.IntArgbPre, |
| 457 | sg.imageComp, |
| 458 | dstType); |
| 459 | |
| 460 | /* NOTE: We can only use the native TransformHelper |
| 461 | * func to go directly to the dest if both the helper |
| 462 | * and the MaskBlit are native. |
| 463 | * All helpers are native at this point, but some MaskBlit |
| 464 | * objects are implemented in Java, so we need to check. |
| 465 | */ |
| 466 | if (maskblit.getNativePrim() != 0) { |
| 467 | // We can render directly. |
| 468 | helper.Transform(maskblit, srcData, dstData, |
| 469 | sg.composite, clip, |
| 470 | itx, interpType, |
| 471 | sx1, sy1, sx2, sy2, |
| 472 | dx1, dy1, dx2, dy2, |
| 473 | null, 0, 0); |
| 474 | return; |
| 475 | } |
| 476 | blit = null; |
| 477 | } else { |
| 478 | /* NOTE: We either have, or we can make, |
| 479 | * a Blit for any composite type, even Custom |
| 480 | */ |
| 481 | maskblit = null; |
| 482 | blit = Blit.getFromCache(SurfaceType.IntArgbPre, |
| 483 | sg.imageComp, |
| 484 | dstType); |
| 485 | } |
| 486 | |
| 487 | // We need to transform to a temp image and then copy |
| 488 | // just the pieces that are valid data to the dest. |
| 489 | BufferedImage tmpimg = new BufferedImage(dx2-dx1, dy2-dy1, |
| 490 | BufferedImage.TYPE_INT_ARGB); |
| 491 | SurfaceData tmpData = SurfaceData.getPrimarySurfaceData(tmpimg); |
| 492 | SurfaceType tmpType = tmpData.getSurfaceType(); |
| 493 | MaskBlit tmpmaskblit = |
| 494 | MaskBlit.getFromCache(SurfaceType.IntArgbPre, |
| 495 | CompositeType.SrcNoEa, |
| 496 | tmpType); |
| 497 | /* |
| 498 | * The helper function fills a temporary edges buffer |
| 499 | * for us with the bounding coordinates of each scanline |
| 500 | * in the following format: |
| 501 | * |
| 502 | * edges[0, 1] = [top y, bottom y) |
| 503 | * edges[2, 3] = [left x, right x) of top row |
| 504 | * ... |
| 505 | * edges[h*2, h*2+1] = [left x, right x) of bottom row |
| 506 | * |
| 507 | * all coordinates in the edges array will be relative to dx1, dy1 |
| 508 | * |
| 509 | * edges thus has to be h*2+2 in length |
| 510 | */ |
| 511 | int edges[] = new int[(dy2-dy1)*2+2]; |
| 512 | helper.Transform(tmpmaskblit, srcData, tmpData, |
| 513 | AlphaComposite.Src, null, |
| 514 | itx, interpType, |
| 515 | sx1, sy1, sx2, sy2, |
| 516 | 0, 0, dx2-dx1, dy2-dy1, |
| 517 | edges, dx1, dy1); |
| 518 | |
| 519 | /* |
| 520 | * Now copy the results, scanline by scanline, into the dest. |
| 521 | * The edges array helps us minimize the work. |
| 522 | */ |
| 523 | int index = 2; |
| 524 | for (int y = edges[0]; y < edges[1]; y++) { |
| 525 | int relx1 = edges[index++]; |
| 526 | int relx2 = edges[index++]; |
| 527 | if (relx1 >= relx2) { |
| 528 | continue; |
| 529 | } |
| 530 | if (maskblit != null) { |
| 531 | maskblit.MaskBlit(tmpData, dstData, |
| 532 | sg.composite, clip, |
| 533 | relx1, y, |
| 534 | dx1+relx1, dy1+y, |
| 535 | relx2 - relx1, 1, |
| 536 | null, 0, 0); |
| 537 | } else { |
| 538 | blit.Blit(tmpData, dstData, |
| 539 | sg.composite, clip, |
| 540 | relx1, y, |
| 541 | dx1+relx1, dy1+y, |
| 542 | relx2 - relx1, 1); |
| 543 | } |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | // Render an image using only integer translation |
| 548 | // (no scale or transform or sub-pixel interpolated translations). |
| 549 | protected boolean renderImageCopy(SunGraphics2D sg, Image img, |
| 550 | Color bgColor, |
| 551 | int dx, int dy, |
| 552 | int sx, int sy, |
| 553 | int w, int h) |
| 554 | { |
| 555 | Region clip = sg.getCompClip(); |
| 556 | SurfaceData dstData = sg.surfaceData; |
| 557 | |
| 558 | int attempts = 0; |
| 559 | // Loop up to twice through; this gives us a chance to |
| 560 | // revalidate the surfaceData objects in case of an exception |
| 561 | // and try it once more |
| 562 | while (true) { |
| 563 | SurfaceData srcData = |
| 564 | dstData.getSourceSurfaceData(img, |
| 565 | sg.TRANSFORM_ISIDENT, |
| 566 | sg.imageComp, |
| 567 | bgColor); |
| 568 | if (srcData == null) { |
| 569 | return false; |
| 570 | } |
| 571 | |
| 572 | try { |
| 573 | SurfaceType srcType = srcData.getSurfaceType(); |
| 574 | SurfaceType dstType = dstData.getSurfaceType(); |
| 575 | blitSurfaceData(sg, clip, |
| 576 | srcData, dstData, srcType, dstType, |
| 577 | sx, sy, dx, dy, w, h, bgColor); |
| 578 | return true; |
| 579 | } catch (NullPointerException e) { |
| 580 | if (!(SurfaceData.isNull(dstData) || |
| 581 | SurfaceData.isNull(srcData))) |
| 582 | { |
| 583 | // Something else caused the exception, throw it... |
| 584 | throw e; |
| 585 | } |
| 586 | return false; |
| 587 | // NOP if we have been disposed |
| 588 | } catch (InvalidPipeException e) { |
| 589 | // Always catch the exception; try this a couple of times |
| 590 | // and fail silently if the system is not yet ready to |
| 591 | // revalidate the source or dest surfaceData objects. |
| 592 | ++attempts; |
| 593 | clip = sg.getCompClip(); // ensures sg.surfaceData is valid |
| 594 | dstData = sg.surfaceData; |
| 595 | if (SurfaceData.isNull(dstData) || |
| 596 | SurfaceData.isNull(srcData) || (attempts > 1)) |
| 597 | { |
| 598 | return false; |
| 599 | } |
| 600 | } |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | // Render an image using only integer scaling (no transform). |
| 605 | protected boolean renderImageScale(SunGraphics2D sg, Image img, |
| 606 | Color bgColor, int interpType, |
| 607 | int sx1, int sy1, |
| 608 | int sx2, int sy2, |
| 609 | double dx1, double dy1, |
| 610 | double dx2, double dy2) |
| 611 | { |
| 612 | // Currently only NEAREST_NEIGHBOR interpolation is implemented |
| 613 | // for ScaledBlit operations. |
| 614 | if (interpType != AffineTransformOp.TYPE_NEAREST_NEIGHBOR) { |
| 615 | return false; |
| 616 | } |
| 617 | |
| 618 | Region clip = sg.getCompClip(); |
| 619 | SurfaceData dstData = sg.surfaceData; |
| 620 | |
| 621 | int attempts = 0; |
| 622 | // Loop up to twice through; this gives us a chance to |
| 623 | // revalidate the surfaceData objects in case of an exception |
| 624 | // and try it once more |
| 625 | while (true) { |
| 626 | SurfaceData srcData = |
| 627 | dstData.getSourceSurfaceData(img, |
| 628 | sg.TRANSFORM_TRANSLATESCALE, |
| 629 | sg.imageComp, |
| 630 | bgColor); |
| 631 | |
| 632 | if (srcData == null || isBgOperation(srcData, bgColor)) { |
| 633 | return false; |
| 634 | } |
| 635 | |
| 636 | try { |
| 637 | SurfaceType srcType = srcData.getSurfaceType(); |
| 638 | SurfaceType dstType = dstData.getSurfaceType(); |
| 639 | return scaleSurfaceData(sg, clip, |
| 640 | srcData, dstData, srcType, dstType, |
| 641 | sx1, sy1, sx2, sy2, |
| 642 | dx1, dy1, dx2, dy2); |
| 643 | } catch (NullPointerException e) { |
| 644 | if (!SurfaceData.isNull(dstData)) { |
| 645 | // Something else caused the exception, throw it... |
| 646 | throw e; |
| 647 | } |
| 648 | return false; |
| 649 | // NOP if we have been disposed |
| 650 | } catch (InvalidPipeException e) { |
| 651 | // Always catch the exception; try this a couple of times |
| 652 | // and fail silently if the system is not yet ready to |
| 653 | // revalidate the source or dest surfaceData objects. |
| 654 | ++attempts; |
| 655 | clip = sg.getCompClip(); // ensures sg.surfaceData is valid |
| 656 | dstData = sg.surfaceData; |
| 657 | if (SurfaceData.isNull(dstData) || |
| 658 | SurfaceData.isNull(srcData) || (attempts > 1)) |
| 659 | { |
| 660 | return false; |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | } |
| 665 | |
| 666 | public boolean scaleImage(SunGraphics2D sg, Image img, |
| 667 | int dx1, int dy1, int dx2, int dy2, |
| 668 | int sx1, int sy1, int sx2, int sy2, |
| 669 | Color bgColor) |
| 670 | { |
| 671 | int srcW, srcH, dstW, dstH; |
| 672 | int srcX, srcY, dstX, dstY; |
| 673 | boolean srcWidthFlip = false; |
| 674 | boolean srcHeightFlip = false; |
| 675 | boolean dstWidthFlip = false; |
| 676 | boolean dstHeightFlip = false; |
| 677 | |
| 678 | if (sx2 > sx1) { |
| 679 | srcW = sx2 - sx1; |
| 680 | srcX = sx1; |
| 681 | } else { |
| 682 | srcWidthFlip = true; |
| 683 | srcW = sx1 - sx2; |
| 684 | srcX = sx2; |
| 685 | } |
| 686 | if (sy2 > sy1) { |
| 687 | srcH = sy2-sy1; |
| 688 | srcY = sy1; |
| 689 | } else { |
| 690 | srcHeightFlip = true; |
| 691 | srcH = sy1-sy2; |
| 692 | srcY = sy2; |
| 693 | } |
| 694 | if (dx2 > dx1) { |
| 695 | dstW = dx2 - dx1; |
| 696 | dstX = dx1; |
| 697 | } else { |
| 698 | dstW = dx1 - dx2; |
| 699 | dstWidthFlip = true; |
| 700 | dstX = dx2; |
| 701 | } |
| 702 | if (dy2 > dy1) { |
| 703 | dstH = dy2 - dy1; |
| 704 | dstY = dy1; |
| 705 | } else { |
| 706 | dstH = dy1 - dy2; |
| 707 | dstHeightFlip = true; |
| 708 | dstY = dy2; |
| 709 | } |
| 710 | if (srcW <= 0 || srcH <= 0) { |
| 711 | return true; |
| 712 | } |
| 713 | // Only accelerate scale if it does not involve a flip or transform |
| 714 | if ((srcWidthFlip == dstWidthFlip) && |
| 715 | (srcHeightFlip == dstHeightFlip) && |
| 716 | isSimpleTranslate(sg)) |
| 717 | { |
| 718 | double ddx1 = dstX + sg.transX; |
| 719 | double ddy1 = dstY + sg.transY; |
| 720 | double ddx2 = ddx1 + dstW; |
| 721 | double ddy2 = ddy1 + dstH; |
| 722 | if (renderImageScale(sg, img, bgColor, sg.interpolationType, |
| 723 | srcX, srcY, srcX+srcW, srcY+srcH, |
| 724 | ddx1, ddy1, ddx2, ddy2)) |
| 725 | { |
| 726 | return true; |
| 727 | } |
| 728 | } |
| 729 | |
| 730 | AffineTransform atfm = new AffineTransform(sg.transform); |
| 731 | atfm.translate(dx1, dy1); |
| 732 | double m00 = (double)(dx2-dx1)/(sx2-sx1); |
| 733 | double m11 = (double)(dy2-dy1)/(sy2-sy1); |
| 734 | atfm.scale(m00, m11); |
| 735 | atfm.translate(srcX-sx1, srcY-sy1); |
| 736 | |
| 737 | int imgW = img.getWidth(null); |
| 738 | int imgH = img.getHeight(null); |
| 739 | srcW += srcX; |
| 740 | srcH += srcY; |
| 741 | // Make sure we are not out of bounds |
| 742 | if (srcW > imgW) { |
| 743 | srcW = imgW; |
| 744 | } |
| 745 | if (srcH > imgH) { |
| 746 | srcH = imgH; |
| 747 | } |
| 748 | if (srcX < 0) { |
| 749 | atfm.translate(-srcX, 0); |
| 750 | srcX = 0; |
| 751 | } |
| 752 | if (srcY < 0) { |
| 753 | atfm.translate(0, -srcY); |
| 754 | srcY = 0; |
| 755 | } |
| 756 | if (srcX >= srcW || srcY >= srcH) { |
| 757 | return true; |
| 758 | } |
| 759 | // Note: src[WH] are currently the right and bottom coordinates. |
| 760 | // The following two lines would adjust src[WH] back to being |
| 761 | // dimensions. |
| 762 | // srcW -= srcX; |
| 763 | // srcH -= srcY; |
| 764 | // Since transformImage needs right and bottom coords we will |
| 765 | // omit this adjustment. |
| 766 | |
| 767 | transformImage(sg, img, atfm, sg.interpolationType, |
| 768 | srcX, srcY, srcW, srcH, bgColor); |
| 769 | return true; |
| 770 | } |
| 771 | |
| 772 | /** |
| 773 | ** Utilities |
| 774 | ** The following methods are used by the public methods above |
| 775 | ** for performing various operations |
| 776 | **/ |
| 777 | |
| 778 | /* |
| 779 | * This constant represents a tradeoff between the |
| 780 | * need to make sure that image transformations are |
| 781 | * "very close" to integer device coordinates before |
| 782 | * we decide to use an integer scale or copy operation |
| 783 | * as a substitute and the fact that roundoff errors |
| 784 | * in AffineTransforms are frequently introduced by |
| 785 | * performing multiple sequential operations on them. |
| 786 | * |
| 787 | * The evaluation of bug 4990624 details the potential |
| 788 | * for this error cutoff to result in display anomalies |
| 789 | * in different types of image operations and how this |
| 790 | * value represents a good compromise here. |
| 791 | */ |
| 792 | private static final double MAX_TX_ERROR = .0001; |
| 793 | |
| 794 | public static boolean closeToInteger(int i, double d) { |
| 795 | return (Math.abs(d-i) < MAX_TX_ERROR); |
| 796 | } |
| 797 | |
| 798 | public static boolean isSimpleTranslate(SunGraphics2D sg) { |
| 799 | int ts = sg.transformState; |
| 800 | if (ts <= sg.TRANSFORM_INT_TRANSLATE) { |
| 801 | // Integer translates are always "simple" |
| 802 | return true; |
| 803 | } |
| 804 | if (ts >= sg.TRANSFORM_TRANSLATESCALE) { |
| 805 | // Scales and beyond are always "not simple" |
| 806 | return false; |
| 807 | } |
| 808 | // non-integer translates are only simple when not interpolating |
| 809 | if (sg.interpolationType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR) { |
| 810 | return true; |
| 811 | } |
| 812 | return false; |
| 813 | } |
| 814 | |
| 815 | protected static boolean isBgOperation(SurfaceData srcData, Color bgColor) { |
| 816 | // If we cannot get the srcData, then cannot assume anything about |
| 817 | // the image |
| 818 | return ((srcData == null) || |
| 819 | ((bgColor != null) && |
| 820 | (srcData.getTransparency() != Transparency.OPAQUE))); |
| 821 | } |
| 822 | |
| 823 | protected BufferedImage getBufferedImage(Image img) { |
| 824 | if (img instanceof BufferedImage) { |
| 825 | return (BufferedImage)img; |
| 826 | } |
| 827 | // Must be VolatileImage; get BufferedImage representation |
| 828 | return ((VolatileImage)img).getSnapshot(); |
| 829 | } |
| 830 | |
| 831 | /* |
| 832 | * Return the color model to be used with this BufferedImage and |
| 833 | * transform. |
| 834 | */ |
| 835 | private ColorModel getTransformColorModel(SunGraphics2D sg, |
| 836 | BufferedImage bImg, |
| 837 | AffineTransform tx) { |
| 838 | ColorModel cm = bImg.getColorModel(); |
| 839 | ColorModel dstCM = cm; |
| 840 | |
| 841 | if (tx.isIdentity()) { |
| 842 | return dstCM; |
| 843 | } |
| 844 | int type = tx.getType(); |
| 845 | boolean needTrans = |
| 846 | ((type&(tx.TYPE_MASK_ROTATION|tx.TYPE_GENERAL_TRANSFORM)) != 0); |
| 847 | if (! needTrans && type != tx.TYPE_TRANSLATION && type != tx.TYPE_IDENTITY) |
| 848 | { |
| 849 | double[] mtx = new double[4]; |
| 850 | tx.getMatrix(mtx); |
| 851 | // Check out the matrix. A non-integral scale will force ARGB |
| 852 | // since the edge conditions cannot be guaranteed. |
| 853 | needTrans = (mtx[0] != (int)mtx[0] || mtx[3] != (int)mtx[3]); |
| 854 | } |
| 855 | |
| 856 | if (sg.renderHint != SunHints.INTVAL_RENDER_QUALITY) { |
| 857 | if (cm instanceof IndexColorModel) { |
| 858 | Raster raster = bImg.getRaster(); |
| 859 | IndexColorModel icm = (IndexColorModel) cm; |
| 860 | // Just need to make sure that we have a transparent pixel |
| 861 | if (needTrans && cm.getTransparency() == cm.OPAQUE) { |
| 862 | // Fix 4221407 |
| 863 | if (raster instanceof sun.awt.image.BytePackedRaster) { |
| 864 | dstCM = ColorModel.getRGBdefault(); |
| 865 | } |
| 866 | else { |
| 867 | double[] matrix = new double[6]; |
| 868 | tx.getMatrix(matrix); |
| 869 | if (matrix[1] == 0. && matrix[2] ==0. |
| 870 | && matrix[4] == 0. && matrix[5] == 0.) { |
| 871 | // Only scaling so do not need to create |
| 872 | } |
| 873 | else { |
| 874 | int mapSize = icm.getMapSize(); |
| 875 | if (mapSize < 256) { |
| 876 | int[] cmap = new int[mapSize+1]; |
| 877 | icm.getRGBs(cmap); |
| 878 | cmap[mapSize] = 0x0000; |
| 879 | dstCM = new |
| 880 | IndexColorModel(icm.getPixelSize(), |
| 881 | mapSize+1, |
| 882 | cmap, 0, true, mapSize, |
| 883 | DataBuffer.TYPE_BYTE); |
| 884 | } |
| 885 | else { |
| 886 | dstCM = ColorModel.getRGBdefault(); |
| 887 | } |
| 888 | } /* if (matrix[0] < 1.f ...) */ |
| 889 | } /* raster instanceof sun.awt.image.BytePackedRaster */ |
| 890 | } /* if (cm.getTransparency() == cm.OPAQUE) */ |
| 891 | } /* if (cm instanceof IndexColorModel) */ |
| 892 | else if (needTrans && cm.getTransparency() == cm.OPAQUE) { |
| 893 | // Need a bitmask transparency |
| 894 | // REMIND: for now, use full transparency since no loops |
| 895 | // for bitmask |
| 896 | dstCM = ColorModel.getRGBdefault(); |
| 897 | } |
| 898 | } /* if (sg.renderHint == RENDER_QUALITY) */ |
| 899 | else { |
| 900 | |
| 901 | if (cm instanceof IndexColorModel || |
| 902 | (needTrans && cm.getTransparency() == cm.OPAQUE)) |
| 903 | { |
| 904 | // Need a bitmask transparency |
| 905 | // REMIND: for now, use full transparency since no loops |
| 906 | // for bitmask |
| 907 | dstCM = ColorModel.getRGBdefault(); |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | return dstCM; |
| 912 | } |
| 913 | |
| 914 | protected void blitSurfaceData(SunGraphics2D sg, |
| 915 | Region clipRegion, |
| 916 | SurfaceData srcData, |
| 917 | SurfaceData dstData, |
| 918 | SurfaceType srcType, |
| 919 | SurfaceType dstType, |
| 920 | int sx, int sy, int dx, int dy, |
| 921 | int w, int h, |
| 922 | Color bgColor) |
| 923 | { |
| 924 | if (w <= 0 || h <= 0) { |
| 925 | /* |
| 926 | * Fix for bugid 4783274 - BlitBg throws an exception for |
| 927 | * a particular set of anomalous parameters. |
| 928 | * REMIND: The native loops do proper clipping and would |
| 929 | * detect this situation themselves, but the Java loops |
| 930 | * all seem to trust their parameters a little too well |
| 931 | * to the point where they will try to process a negative |
| 932 | * area of pixels and throw exceptions. The real fix is |
| 933 | * to modify the Java loops to do proper clipping so that |
| 934 | * they can deal with negative dimensions as well as |
| 935 | * improperly large dimensions, but that fix is too risky |
| 936 | * to integrate for Mantis at this point. In the meantime |
| 937 | * eliminating the negative or zero dimensions here is |
| 938 | * "correct" and saves them from some nasty exceptional |
| 939 | * conditions, one of which is the test case of 4783274. |
| 940 | */ |
| 941 | return; |
| 942 | } |
| 943 | CompositeType comp = sg.imageComp; |
| 944 | if (CompositeType.SrcOverNoEa.equals(comp) && |
| 945 | (srcData.getTransparency() == Transparency.OPAQUE || |
| 946 | (bgColor != null && |
| 947 | bgColor.getTransparency() == Transparency.OPAQUE))) |
| 948 | { |
| 949 | comp = CompositeType.SrcNoEa; |
| 950 | } |
| 951 | if (!isBgOperation(srcData, bgColor)) { |
| 952 | Blit blit = Blit.getFromCache(srcType, comp, dstType); |
| 953 | blit.Blit(srcData, dstData, sg.composite, clipRegion, |
| 954 | sx, sy, dx, dy, w, h); |
| 955 | } else { |
| 956 | BlitBg blit = BlitBg.getFromCache(srcType, comp, dstType); |
| 957 | blit.BlitBg(srcData, dstData, sg.composite, clipRegion, |
| 958 | bgColor, sx, sy, dx, dy, w, h); |
| 959 | } |
| 960 | } |
| 961 | |
| 962 | protected boolean scaleSurfaceData(SunGraphics2D sg, |
| 963 | Region clipRegion, |
| 964 | SurfaceData srcData, |
| 965 | SurfaceData dstData, |
| 966 | SurfaceType srcType, |
| 967 | SurfaceType dstType, |
| 968 | int sx1, int sy1, |
| 969 | int sx2, int sy2, |
| 970 | double dx1, double dy1, |
| 971 | double dx2, double dy2) |
| 972 | { |
| 973 | CompositeType comp = sg.imageComp; |
| 974 | if (CompositeType.SrcOverNoEa.equals(comp) && |
| 975 | (srcData.getTransparency() == Transparency.OPAQUE)) |
| 976 | { |
| 977 | comp = CompositeType.SrcNoEa; |
| 978 | } |
| 979 | |
| 980 | ScaledBlit blit = ScaledBlit.getFromCache(srcType, comp, dstType); |
| 981 | if (blit != null) { |
| 982 | blit.Scale(srcData, dstData, sg.composite, clipRegion, |
| 983 | sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2); |
| 984 | return true; |
| 985 | } |
| 986 | return false; |
| 987 | } |
| 988 | |
| 989 | protected static boolean imageReady(ToolkitImage sunimg, |
| 990 | ImageObserver observer) |
| 991 | { |
| 992 | if (sunimg.hasError()) { |
| 993 | if (observer != null) { |
| 994 | observer.imageUpdate(sunimg, |
| 995 | ImageObserver.ERROR|ImageObserver.ABORT, |
| 996 | -1, -1, -1, -1); |
| 997 | } |
| 998 | return false; |
| 999 | } |
| 1000 | return true; |
| 1001 | } |
| 1002 | |
| 1003 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 1004 | int x, int y, |
| 1005 | Color bgColor, |
| 1006 | ImageObserver observer) { |
| 1007 | if (!(img instanceof ToolkitImage)) { |
| 1008 | return copyImage(sg, img, x, y, bgColor); |
| 1009 | } else { |
| 1010 | ToolkitImage sunimg = (ToolkitImage)img; |
| 1011 | if (!imageReady(sunimg, observer)) { |
| 1012 | return false; |
| 1013 | } |
| 1014 | ImageRepresentation ir = sunimg.getImageRep(); |
| 1015 | return ir.drawToBufImage(sg, sunimg, x, y, bgColor, observer); |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 1020 | int dx, int dy, int sx, int sy, int w, int h, |
| 1021 | Color bgColor, |
| 1022 | ImageObserver observer) { |
| 1023 | if (!(img instanceof ToolkitImage)) { |
| 1024 | return copyImage(sg, img, dx, dy, sx, sy, w, h, bgColor); |
| 1025 | } else { |
| 1026 | ToolkitImage sunimg = (ToolkitImage)img; |
| 1027 | if (!imageReady(sunimg, observer)) { |
| 1028 | return false; |
| 1029 | } |
| 1030 | ImageRepresentation ir = sunimg.getImageRep(); |
| 1031 | return ir.drawToBufImage(sg, sunimg, |
| 1032 | dx, dy, (dx + w), (dy + h), |
| 1033 | sx, sy, (sx + w), (sy + h), |
| 1034 | bgColor, observer); |
| 1035 | } |
| 1036 | } |
| 1037 | |
| 1038 | public boolean scaleImage(SunGraphics2D sg, Image img, |
| 1039 | int x, int y, |
| 1040 | int width, int height, |
| 1041 | Color bgColor, |
| 1042 | ImageObserver observer) { |
| 1043 | if (!(img instanceof ToolkitImage)) { |
| 1044 | return scaleImage(sg, img, x, y, width, height, bgColor); |
| 1045 | } else { |
| 1046 | ToolkitImage sunimg = (ToolkitImage)img; |
| 1047 | if (!imageReady(sunimg, observer)) { |
| 1048 | return false; |
| 1049 | } |
| 1050 | ImageRepresentation ir = sunimg.getImageRep(); |
| 1051 | return ir.drawToBufImage(sg, sunimg, x, y, width, height, bgColor, |
| 1052 | observer); |
| 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | public boolean scaleImage(SunGraphics2D sg, Image img, |
| 1057 | int dx1, int dy1, int dx2, int dy2, |
| 1058 | int sx1, int sy1, int sx2, int sy2, |
| 1059 | Color bgColor, |
| 1060 | ImageObserver observer) { |
| 1061 | if (!(img instanceof ToolkitImage)) { |
| 1062 | return scaleImage(sg, img, dx1, dy1, dx2, dy2, |
| 1063 | sx1, sy1, sx2, sy2, bgColor); |
| 1064 | } else { |
| 1065 | ToolkitImage sunimg = (ToolkitImage)img; |
| 1066 | if (!imageReady(sunimg, observer)) { |
| 1067 | return false; |
| 1068 | } |
| 1069 | ImageRepresentation ir = sunimg.getImageRep(); |
| 1070 | return ir.drawToBufImage(sg, sunimg, dx1, dy1, dx2, dy2, |
| 1071 | sx1, sy1, sx2, sy2, bgColor, observer); |
| 1072 | } |
| 1073 | } |
| 1074 | |
| 1075 | public boolean transformImage(SunGraphics2D sg, Image img, |
| 1076 | AffineTransform atfm, |
| 1077 | ImageObserver observer) { |
| 1078 | if (!(img instanceof ToolkitImage)) { |
| 1079 | transformImage(sg, img, 0, 0, atfm, sg.interpolationType); |
| 1080 | return true; |
| 1081 | } else { |
| 1082 | ToolkitImage sunimg = (ToolkitImage)img; |
| 1083 | if (!imageReady(sunimg, observer)) { |
| 1084 | return false; |
| 1085 | } |
| 1086 | ImageRepresentation ir = sunimg.getImageRep(); |
| 1087 | return ir.drawToBufImage(sg, sunimg, atfm, observer); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | public void transformImage(SunGraphics2D sg, BufferedImage img, |
| 1092 | BufferedImageOp op, int x, int y) |
| 1093 | { |
| 1094 | if (op != null) { |
| 1095 | if (op instanceof AffineTransformOp) { |
| 1096 | AffineTransformOp atop = (AffineTransformOp) op; |
| 1097 | transformImage(sg, img, x, y, |
| 1098 | atop.getTransform(), |
| 1099 | atop.getInterpolationType()); |
| 1100 | return; |
| 1101 | } else { |
| 1102 | img = op.filter(img, null); |
| 1103 | } |
| 1104 | } |
| 1105 | copyImage(sg, img, x, y, null); |
| 1106 | } |
| 1107 | } |