1 /*
2 * Copyright (c) 2000, 2012, 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
302 }
303
304 public int getNumThumbnailsSupported(ImageTypeSpecifier imageType,
305 ImageWriteParam param,
306 IIOMetadata streamMetadata,
307 IIOMetadata imageMetadata) {
308 if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
309 return Integer.MAX_VALUE;
310 }
311 return 0;
312 }
313
314 static final Dimension [] preferredThumbSizes = {new Dimension(1, 1),
315 new Dimension(255, 255)};
316
317 public Dimension[] getPreferredThumbnailSizes(ImageTypeSpecifier imageType,
318 ImageWriteParam param,
319 IIOMetadata streamMetadata,
320 IIOMetadata imageMetadata) {
321 if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
322 return (Dimension [])preferredThumbSizes.clone();
323 }
324 return null;
325 }
326
327 private boolean jfifOK(ImageTypeSpecifier imageType,
328 ImageWriteParam param,
329 IIOMetadata streamMetadata,
330 IIOMetadata imageMetadata) {
331 // If the image type and metadata are JFIF compatible, return true
332 if ((imageType != null) &&
333 (!JPEG.isJFIFcompliant(imageType, true))) {
334 return false;
335 }
336 if (imageMetadata != null) {
337 JPEGMetadata metadata = null;
338 if (imageMetadata instanceof JPEGMetadata) {
339 metadata = (JPEGMetadata) imageMetadata;
340 } else {
341 metadata = (JPEGMetadata)convertImageMetadata(imageMetadata,
342 imageType,
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1 /*
2 * Copyright (c) 2000, 2014, 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
302 }
303
304 public int getNumThumbnailsSupported(ImageTypeSpecifier imageType,
305 ImageWriteParam param,
306 IIOMetadata streamMetadata,
307 IIOMetadata imageMetadata) {
308 if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
309 return Integer.MAX_VALUE;
310 }
311 return 0;
312 }
313
314 static final Dimension [] preferredThumbSizes = {new Dimension(1, 1),
315 new Dimension(255, 255)};
316
317 public Dimension[] getPreferredThumbnailSizes(ImageTypeSpecifier imageType,
318 ImageWriteParam param,
319 IIOMetadata streamMetadata,
320 IIOMetadata imageMetadata) {
321 if (jfifOK(imageType, param, streamMetadata, imageMetadata)) {
322 return preferredThumbSizes.clone();
323 }
324 return null;
325 }
326
327 private boolean jfifOK(ImageTypeSpecifier imageType,
328 ImageWriteParam param,
329 IIOMetadata streamMetadata,
330 IIOMetadata imageMetadata) {
331 // If the image type and metadata are JFIF compatible, return true
332 if ((imageType != null) &&
333 (!JPEG.isJFIFcompliant(imageType, true))) {
334 return false;
335 }
336 if (imageMetadata != null) {
337 JPEGMetadata metadata = null;
338 if (imageMetadata instanceof JPEGMetadata) {
339 metadata = (JPEGMetadata) imageMetadata;
340 } else {
341 metadata = (JPEGMetadata)convertImageMetadata(imageMetadata,
342 imageType,
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