1 /*
2 * Copyright (c) 1997, 2007, 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
868 * or if data buffer has not enough capacity.
869 */
870 protected final void verify() {
871 /* Need to re-verify the dimensions since a sample model may be
872 * specified to the constructor
873 */
874 if (width <= 0 || height <= 0 ||
875 height > (Integer.MAX_VALUE / width))
876 {
877 throw new RasterFormatException("Invalid raster dimension");
878 }
879
880 for (int i = 0; i < dataOffsets.length; i++) {
881 if (dataOffsets[i] < 0) {
882 throw new RasterFormatException("Data offsets for band " + i
883 + "(" + dataOffsets[i]
884 + ") must be >= 0");
885 }
886 }
887
888 // we can be sure that width and height are greater than 0
889 if (scanlineStride < 0 ||
890 scanlineStride > (Integer.MAX_VALUE / height) ||
891 scanlineStride > data.length)
892 {
893 // integer overflow
894 throw new RasterFormatException("Incorrect scanline stride: "
895 + scanlineStride);
896 }
897 int lastScanOffset = (height - 1) * scanlineStride;
898
899 if (pixelStride < 0 ||
900 pixelStride > (Integer.MAX_VALUE / width) ||
901 pixelStride > data.length)
902 {
903 // integer overflow
904 throw new RasterFormatException("Incorrect pixel stride: "
905 + pixelStride);
906 }
907 int lastPixelOffset = (width - 1) * pixelStride;
908
909 if (lastPixelOffset > (Integer.MAX_VALUE - lastScanOffset)) {
910 // integer overflow
911 throw new RasterFormatException("Incorrect raster attributes");
912 }
913 lastPixelOffset += lastScanOffset;
914
915 int index;
916 int maxIndex = 0;
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1 /*
2 * Copyright (c) 1997, 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
868 * or if data buffer has not enough capacity.
869 */
870 protected final void verify() {
871 /* Need to re-verify the dimensions since a sample model may be
872 * specified to the constructor
873 */
874 if (width <= 0 || height <= 0 ||
875 height > (Integer.MAX_VALUE / width))
876 {
877 throw new RasterFormatException("Invalid raster dimension");
878 }
879
880 for (int i = 0; i < dataOffsets.length; i++) {
881 if (dataOffsets[i] < 0) {
882 throw new RasterFormatException("Data offsets for band " + i
883 + "(" + dataOffsets[i]
884 + ") must be >= 0");
885 }
886 }
887
888 if ((long)minX - sampleModelTranslateX < 0 ||
889 (long)minY - sampleModelTranslateY < 0) {
890
891 throw new RasterFormatException("Incorrect origin/translate: (" +
892 minX + ", " + minY + ") / (" +
893 sampleModelTranslateX + ", " + sampleModelTranslateY + ")");
894 }
895
896 // we can be sure that width and height are greater than 0
897 if (scanlineStride < 0 ||
898 scanlineStride > (Integer.MAX_VALUE / height))
899 {
900 // integer overflow
901 throw new RasterFormatException("Incorrect scanline stride: "
902 + scanlineStride);
903 }
904
905 if (height > 1 || minY - sampleModelTranslateY > 0) {
906 // buffer should contain at least one scanline
907 if (scanlineStride > data.length) {
908 throw new RasterFormatException("Incorrect scanline stride: "
909 + scanlineStride);
910 }
911 }
912
913 int lastScanOffset = (height - 1) * scanlineStride;
914
915 if (pixelStride < 0 ||
916 pixelStride > (Integer.MAX_VALUE / width) ||
917 pixelStride > data.length)
918 {
919 // integer overflow
920 throw new RasterFormatException("Incorrect pixel stride: "
921 + pixelStride);
922 }
923 int lastPixelOffset = (width - 1) * pixelStride;
924
925 if (lastPixelOffset > (Integer.MAX_VALUE - lastScanOffset)) {
926 // integer overflow
927 throw new RasterFormatException("Incorrect raster attributes");
928 }
929 lastPixelOffset += lastScanOffset;
930
931 int index;
932 int maxIndex = 0;
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