diff options
Diffstat (limited to 'awt/javax/imageio/plugins')
| -rw-r--r-- | awt/javax/imageio/plugins/bmp/BMPImageWriteParam.java | 79 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/bmp/package.html | 8 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/jpeg/JPEGHuffmanTable.java | 226 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/jpeg/JPEGImageReadParam.java | 123 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/jpeg/JPEGImageWriteParam.java | 209 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/jpeg/JPEGQTable.java | 165 | ||||
| -rw-r--r-- | awt/javax/imageio/plugins/jpeg/package.html | 8 |
7 files changed, 0 insertions, 818 deletions
diff --git a/awt/javax/imageio/plugins/bmp/BMPImageWriteParam.java b/awt/javax/imageio/plugins/bmp/BMPImageWriteParam.java deleted file mode 100644 index ecfb20a..0000000 --- a/awt/javax/imageio/plugins/bmp/BMPImageWriteParam.java +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package javax.imageio.plugins.bmp; - -import javax.imageio.ImageWriteParam; -import java.util.Locale; - -/** - * The BMPImageWriteParam class allows encoding an image in BMP format. - * - * @since Android 1.0 - */ -public class BMPImageWriteParam extends ImageWriteParam { - - /** - * The top down. - */ - private boolean topDown; // Default is bottom-up - - /** - * Instantiates a new BMPImageWriteParam with default values of all - * parameters. - */ - public BMPImageWriteParam() { - this(null); - } - - /** - * Instantiates a new BMPImageWriteParam with the specified Locale. - * - * @param locale - * the specified Locale. - */ - public BMPImageWriteParam(Locale locale) { - super(locale); - - // Set the compression - canWriteCompressed = true; - compressionTypes = new String[] { - "BI_RGB", "BI_RLE8", "BI_RLE4", "BI_BITFIELDS" - }; - compressionType = compressionTypes[0]; - } - - /** - * Sets true if the data will be written in a top-down order, false - * otherwise. - * - * @param topDown - * the new top-down value. - */ - public void setTopDown(boolean topDown) { - this.topDown = topDown; - } - - /** - * Returns true if the data is written in top-down order, false otherwise. - * - * @return true if the data is written in top-down order, false otherwise. - */ - public boolean isTopDown() { - return topDown; - } -} diff --git a/awt/javax/imageio/plugins/bmp/package.html b/awt/javax/imageio/plugins/bmp/package.html deleted file mode 100644 index 9494a10..0000000 --- a/awt/javax/imageio/plugins/bmp/package.html +++ /dev/null @@ -1,8 +0,0 @@ -<html> - <body> - <p> - This package contains auxiliary classes for the built-in BMP image plug-in. - </p> - @since Android 1.0 - </body> -</html> diff --git a/awt/javax/imageio/plugins/jpeg/JPEGHuffmanTable.java b/awt/javax/imageio/plugins/jpeg/JPEGHuffmanTable.java deleted file mode 100644 index 67b504b..0000000 --- a/awt/javax/imageio/plugins/jpeg/JPEGHuffmanTable.java +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package javax.imageio.plugins.jpeg; - -/** - * The JPEGHuffmanTable class represents a single JPEG Huffman table. It - * contains the standard tables from the JPEG specification. - * - * @since Android 1.0 - */ -public class JPEGHuffmanTable { - - /** - * The standard DC luminance Huffman table . - */ - public static final JPEGHuffmanTable StdDCLuminance = new JPEGHuffmanTable(new short[] { - 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 - }, new short[] { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0x0A, 0x0B - }, false); - - /** - * The standard DC chrominance Huffman table. - */ - public static final JPEGHuffmanTable StdDCChrominance = new JPEGHuffmanTable(new short[] { - 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 - }, new short[] { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0x0A, 0x0B - }, false); - - /** - * The standard AC luminance Huffman table. - */ - public static final JPEGHuffmanTable StdACLuminance = new JPEGHuffmanTable(new short[] { - 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7D - }, new short[] { - 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, - 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, - 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, - 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, - 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, - 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, - 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, - 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, - 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, - 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, - 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, - 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA - }, false); - - /** - * The standard AC chrominance Huffman table. - */ - public static final JPEGHuffmanTable StdACChrominance = new JPEGHuffmanTable(new short[] { - 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 - }, new short[] { - 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, - 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 0x09, - 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, - 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, - 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, - 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, - 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, - 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, - 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, - 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, - 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA - }, false); - - /** - * The lengths. - */ - private short lengths[]; - - /** - * The values. - */ - private short values[]; - - /** - * Instantiates a new jPEG huffman table. - * - * @param lengths - * the lengths - * @param values - * the values - * @param copy - * the copy - */ - JPEGHuffmanTable(short[] lengths, short[] values, boolean copy) { - // Construction of standard tables without checks - // The third param is dummy - // Could be also used for copying of the existing tables - this.lengths = lengths; - this.values = values; - } - - /** - * Instantiates a new JPEGHuffmanTable. - * - * @param lengths - * the array of shorts lengths. - * @param values - * the array of shorts containing the values in order of - * increasing code length. - */ - public JPEGHuffmanTable(short[] lengths, short[] values) { - if (lengths == null) { - throw new IllegalArgumentException("lengths array is null!"); - } - if (values == null) { - throw new IllegalArgumentException("values array is null!"); - } - if (lengths.length > 16) { // According to the spec - throw new IllegalArgumentException("lengths array is too long!"); - } - if (values.length > 256) { // According to the spec - throw new IllegalArgumentException("values array is too long"); - } - for (short length : lengths) { - if (length < 0) { - throw new IllegalArgumentException("Values in lengths array must be non-negative."); - } - } - for (short value : values) { - if (value < 0) { - throw new IllegalArgumentException("Values in values array must be non-negative."); - } - } - - checkHuffmanTable(lengths, values); - - this.lengths = new short[lengths.length]; - this.values = new short[values.length]; - System.arraycopy(lengths, 0, this.lengths, 0, lengths.length); - System.arraycopy(values, 0, this.values, 0, values.length); - } - - /** - * Gets an array of lengths in the Huffman table. - * - * @return the array of short values representing the length values in the - * Huffman table. - */ - public short[] getLengths() { - short newLengths[] = new short[lengths.length]; - System.arraycopy(lengths, 0, newLengths, 0, lengths.length); - return newLengths; - } - - /** - * Gets an array of values represented by increasing length of their codes. - * - * @return the array of values. - */ - public short[] getValues() { - short newValues[] = new short[values.length]; - System.arraycopy(values, 0, newValues, 0, values.length); - return newValues; - } - - /** - * Check huffman table. - * - * @param lengths - * the lengths. - * @param values - * the values. - */ - private static void checkHuffmanTable(short[] lengths, short[] values) { - int numLeaves = 0; - int possibleLeaves = 2; - for (short length : lengths) { - numLeaves += length; - possibleLeaves -= length; - if (possibleLeaves < 0) { - throw new IllegalArgumentException( - "Invalid Huffman table provided, lengths are incorrect."); - } - possibleLeaves <<= 1; - } - - if (values.length != numLeaves) { - throw new IllegalArgumentException( - "Invalid Huffman table provided, sum of lengths != values."); - } - } - - /** - * Returns the string representation of this JPEGHuffmanTable object. - * - * @return the string representation of this JPEGHuffmanTable object. - */ - @Override - public String toString() { - StringBuffer sb = new StringBuffer(); - - sb.append("JPEGHuffmanTable:\nlengths:"); - for (short length : lengths) { - sb.append(' ').append(length); - } - - sb.append("\nvalues:"); - for (short value : values) { - sb.append(' ').append(value); - } - - return sb.toString(); - } -} diff --git a/awt/javax/imageio/plugins/jpeg/JPEGImageReadParam.java b/awt/javax/imageio/plugins/jpeg/JPEGImageReadParam.java deleted file mode 100644 index 2f3a9a8..0000000 --- a/awt/javax/imageio/plugins/jpeg/JPEGImageReadParam.java +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package javax.imageio.plugins.jpeg; - -import javax.imageio.ImageReadParam; - -/** - * The JPEGImageReadParam class provides functionality to set Huffman tables and - * quantization tables when using the JPEG reader plug-in. - * - * @since Android 1.0 - */ -public class JPEGImageReadParam extends ImageReadParam { - - /** - * The q tables. - */ - private JPEGQTable qTables[]; - - /** - * The dc huffman tables. - */ - private JPEGHuffmanTable dcHuffmanTables[]; - - /** - * The ac huffman tables. - */ - private JPEGHuffmanTable acHuffmanTables[]; - - /** - * Instantiates a new JPEGImageReadParam. - */ - public JPEGImageReadParam() { - } - - /** - * Returns true if tables are set, false otherwise. - * - * @return true, if tables are set, false otherwise. - */ - public boolean areTablesSet() { - return qTables != null; - } - - /** - * Sets the quantization and Huffman tables for using in decoding streams. - * - * @param qTables - * the quantization tables. - * @param DCHuffmanTables - * the standart DC Huffman tables. - * @param ACHuffmanTables - * the standart AC huffman tables. - */ - public void setDecodeTables(JPEGQTable[] qTables, JPEGHuffmanTable[] DCHuffmanTables, - JPEGHuffmanTable[] ACHuffmanTables) { - if (qTables == null || DCHuffmanTables == null || ACHuffmanTables == null) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - if (DCHuffmanTables.length != ACHuffmanTables.length) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - if (qTables.length > 4 || DCHuffmanTables.length > 4) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - - // Do the shallow copy, it should be enough - this.qTables = qTables.clone(); - dcHuffmanTables = DCHuffmanTables.clone(); - acHuffmanTables = ACHuffmanTables.clone(); - } - - /** - * Unset all decoded tables. - */ - public void unsetDecodeTables() { - qTables = null; - dcHuffmanTables = null; - acHuffmanTables = null; - } - - /** - * Gets the quantization tables. - * - * @return the quantization tables, or null. - */ - public JPEGQTable[] getQTables() { - return qTables == null ? null : qTables.clone(); - } - - /** - * Gets the DC Huffman tables. - * - * @return the DC Huffman tables which are set, or null. - */ - public JPEGHuffmanTable[] getDCHuffmanTables() { - return dcHuffmanTables == null ? null : dcHuffmanTables.clone(); - } - - /** - * Gets the AC Huffman tables. - * - * @return the AC Huffman tables which are set, or null. - */ - public JPEGHuffmanTable[] getACHuffmanTables() { - return acHuffmanTables == null ? null : acHuffmanTables.clone(); - } -} diff --git a/awt/javax/imageio/plugins/jpeg/JPEGImageWriteParam.java b/awt/javax/imageio/plugins/jpeg/JPEGImageWriteParam.java deleted file mode 100644 index b979911..0000000 --- a/awt/javax/imageio/plugins/jpeg/JPEGImageWriteParam.java +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package javax.imageio.plugins.jpeg; - -import org.apache.harmony.x.imageio.plugins.jpeg.JPEGConsts; - -import javax.imageio.ImageWriteParam; -import java.util.Locale; - -/** - * The JPEGImageWriteParam class allows to set JPEG Huffman tables and - * quantization when using the JPEG writer plug-in. - * - * @since Android 1.0 - */ -public class JPEGImageWriteParam extends ImageWriteParam { - - /** - * The Constant COMP_QUALITY_VALUES. - */ - private static final float[] COMP_QUALITY_VALUES = { - 0.05f, 0.75f, 0.95f - }; - - /** - * The Constant COMP_QUALITY_DESCRIPTIONS. - */ - private static final String[] COMP_QUALITY_DESCRIPTIONS = { - "Minimum useful", "Visually lossless", "Maximum useful" - }; - - /** - * The q tables. - */ - private JPEGQTable[] qTables; - - /** - * The dc huffman tables. - */ - private JPEGHuffmanTable[] dcHuffmanTables; - - /** - * The ac huffman tables. - */ - private JPEGHuffmanTable[] acHuffmanTables; - - /** - * The optimize huffman tables. - */ - private boolean optimizeHuffmanTables; - - /** - * Instantiates a new JPEGImageWriteParam object with the specified Locale. - * - * @param locale - * the Locale. - */ - public JPEGImageWriteParam(Locale locale) { - super(locale); - - canWriteProgressive = true; - progressiveMode = ImageWriteParam.MODE_DISABLED; - - canWriteCompressed = true; - compressionTypes = new String[] { - "JPEG" - }; - compressionType = compressionTypes[0]; - compressionQuality = JPEGConsts.DEFAULT_JPEG_COMPRESSION_QUALITY; - } - - /** - * Returns true if tables are set, false otherwise. - * - * @return true, if tables are set, false otherwise. - */ - public boolean areTablesSet() { - return qTables != null; - } - - /** - * Sets the quantization and Huffman tables for using in encoding streams. - * - * @param qTables - * the quantization tables. - * @param DCHuffmanTables - * the standart DC Huffman tables. - * @param ACHuffmanTables - * the standart AC huffman tables. - */ - public void setEncodeTables(JPEGQTable[] qTables, JPEGHuffmanTable[] DCHuffmanTables, - JPEGHuffmanTable[] ACHuffmanTables) { - if (qTables == null || DCHuffmanTables == null || ACHuffmanTables == null) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - if (DCHuffmanTables.length != ACHuffmanTables.length) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - if (qTables.length > 4 || DCHuffmanTables.length > 4) { - throw new IllegalArgumentException("Invalid JPEG table arrays"); - } - - // Do the shallow copy, it should be enough - this.qTables = qTables.clone(); - dcHuffmanTables = DCHuffmanTables.clone(); - acHuffmanTables = ACHuffmanTables.clone(); - } - - /** - * Unset all encoded tables. - */ - public void unsetEncodeTables() { - qTables = null; - dcHuffmanTables = null; - acHuffmanTables = null; - } - - /** - * Gets the DC Huffman tables. - * - * @return the DC Huffman tables which are set, or null. - */ - public JPEGHuffmanTable[] getDCHuffmanTables() { - return dcHuffmanTables == null ? null : dcHuffmanTables.clone(); - } - - /** - * Gets the AC Huffman tables. - * - * @return the AC Huffman tables which are set, or null. - */ - public JPEGHuffmanTable[] getACHuffmanTables() { - return acHuffmanTables == null ? null : acHuffmanTables.clone(); - } - - /** - * Gets the quantization tables. - * - * @return the quantization tables, or null. - */ - public JPEGQTable[] getQTables() { - return qTables == null ? null : qTables.clone(); - } - - @Override - public String[] getCompressionQualityDescriptions() { - super.getCompressionQualityDescriptions(); - return COMP_QUALITY_DESCRIPTIONS.clone(); - } - - @Override - public float[] getCompressionQualityValues() { - super.getCompressionQualityValues(); - return COMP_QUALITY_VALUES.clone(); - } - - /** - * Sets the flag indicated that the writer will generate optimized Huffman - * tables for the image as part of the writing process. - * - * @param optimize - * the flag of optimizing huffman tables. - */ - public void setOptimizeHuffmanTables(boolean optimize) { - optimizeHuffmanTables = optimize; - } - - /** - * Returns true if the writer generates optimized Huffman tables, false - * otherwise. - * - * @return true, if the writer generates optimized Huffman tables, false - * otherwise. - */ - public boolean getOptimizeHuffmanTables() { - return optimizeHuffmanTables; - } - - @Override - public boolean isCompressionLossless() { - if (getCompressionMode() != MODE_EXPLICIT) { - throw new IllegalStateException("Compression mode not MODE_EXPLICIT!"); - } - return false; - } - - @Override - public void unsetCompression() { - if (getCompressionMode() != MODE_EXPLICIT) { - throw new IllegalStateException("Compression mode not MODE_EXPLICIT!"); - } - compressionQuality = JPEGConsts.DEFAULT_JPEG_COMPRESSION_QUALITY; - } -} diff --git a/awt/javax/imageio/plugins/jpeg/JPEGQTable.java b/awt/javax/imageio/plugins/jpeg/JPEGQTable.java deleted file mode 100644 index 3461d46..0000000 --- a/awt/javax/imageio/plugins/jpeg/JPEGQTable.java +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/** - * @author Rustem V. Rafikov - * @version $Revision: 1.3 $ - */ - -package javax.imageio.plugins.jpeg; - -/** - * The JPEGQTable class represents a single JPEG quantization table and provides - * for the standard tables taken from the JPEG specification. - * - * @since Android 1.0 - */ -public class JPEGQTable { - - /** - * The Constant SIZE. - */ - private final static int SIZE = 64; - - /** - * The Constant BASELINE_MAX. - */ - private final static int BASELINE_MAX = 255; - - /** - * The Constant MAX. - */ - private final static int MAX = 32767; - - /** - * The table. - */ - private int[] theTable; - - /* - * K1 & K2 tables can be found in the JPEG format specification at - * http://www.w3.org/Graphics/JPEG/itu-t81.pdf - */ - - /** - * The Constant K1LumTable. - */ - private static final int[] K1LumTable = new int[] { - 16, 11, 10, 16, 24, 40, 51, 61, 12, 12, 14, 19, 26, 58, 60, 55, 14, 13, 16, 24, 40, 57, - 69, 56, 14, 17, 22, 29, 51, 87, 80, 62, 18, 22, 37, 56, 68, 109, 103, 77, 24, 35, 55, - 64, 81, 104, 113, 92, 49, 64, 78, 87, 103, 121, 120, 101, 72, 92, 95, 98, 112, 100, - 103, 99 - }; - - /** - * The Constant K2ChrTable. - */ - private static final int[] K2ChrTable = new int[] { - 17, 18, 24, 47, 99, 99, 99, 99, 18, 21, 26, 66, 99, 99, 99, 99, 24, 26, 56, 99, 99, 99, - 99, 99, 47, 66, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99 - }; - - /** - * The K1Luminance indicates standard table K.1 from JPEG specification and - * produces "good" quality output. - */ - public static final JPEGQTable K1Luminance = new JPEGQTable(K1LumTable); - - /** - * The K1Div2Luminance indicates K.1 table from JPEG specification with all - * elements divided by 2 and produces "very good" quality output. - */ - public static final JPEGQTable K1Div2Luminance = K1Luminance.getScaledInstance(0.5f, true); - - /** - * The K2Chrominance indicates K.2 table from JPEG specification and - * produces "good" quality output. - */ - public static final JPEGQTable K2Chrominance = new JPEGQTable(K2ChrTable); - - /** - * The Constant K2Div2Chrominance indicates K.2 table from JPEG - * specification with all elements divided by 2 and produces "very good" - * quality output. - */ - public static final JPEGQTable K2Div2Chrominance = K2Chrominance.getScaledInstance(0.5f, true);; - - /** - * Instantiates a new JPEGQTable from the array, which should contain 64 - * elements in natural order. - * - * @param table - * the quantization table. - */ - public JPEGQTable(int[] table) { - if (table == null) { - throw new IllegalArgumentException("table should not be NULL"); - } - if (table.length != SIZE) { - throw new IllegalArgumentException("illegal table size: " + table.length); - } - theTable = table.clone(); - } - - /** - * Gets the current quantization table as an array of integer values. - * - * @return the current quantization table as an array of integer values. - */ - public int[] getTable() { - return theTable.clone(); - } - - /** - * Gets the scaled instance as quantization table where the values are - * multiplied by the scaleFactor and then clamped if forceBaseline is true. - * - * @param scaleFactor - * the scale factor of table. - * @param forceBaseline - * the force baseline flag, the values should be clamped if true. - * @return the new quantization table. - */ - public JPEGQTable getScaledInstance(float scaleFactor, boolean forceBaseline) { - int table[] = new int[SIZE]; - - int maxValue = forceBaseline ? BASELINE_MAX : MAX; - - for (int i = 0; i < theTable.length; i++) { - int rounded = Math.round(theTable[i] * scaleFactor); - if (rounded < 1) { - rounded = 1; - } - if (rounded > maxValue) { - rounded = maxValue; - } - table[i] = rounded; - } - return new JPEGQTable(table); - } - - /** - * Returns the string representation of this JPEGQTable object. - * - * @return the string representation of this JPEGQTable object. - */ - @Override - public String toString() { - // -- TODO more informative info - return "JPEGQTable"; - } -} diff --git a/awt/javax/imageio/plugins/jpeg/package.html b/awt/javax/imageio/plugins/jpeg/package.html deleted file mode 100644 index 14575c4..0000000 --- a/awt/javax/imageio/plugins/jpeg/package.html +++ /dev/null @@ -1,8 +0,0 @@ -<html> - <body> - <p> - This package contains auxiliary classes for the built-in JPEG image plug-in. - </p> - @since Android 1.0 - </body> -</html> |