19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this work for additional information regarding copyright ownership. 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (the "License"); you may not use this file except in compliance with 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the License. You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @author Viskov Nikolay 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @version $Revision$ 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage org.apache.harmony.x.imageio.plugins.png; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.image.ColorModel; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.image.DataBufferByte; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.image.IndexColorModel; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Locale; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.imageio.ImageTypeSpecifier; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.imageio.ImageWriter; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.imageio.spi.ImageWriterSpi; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class PNGImageWriterSpi extends ImageWriterSpi { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public PNGImageWriterSpi() { 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super("Intel Corporation",// vendorName 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "1.0",// version 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new String[] { 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "png", "PNG" },// names 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new String[] { 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "png", "PNG" },// suffixes 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new String[] { 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "image/png" },// MIMETypes 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "org.apache.harmony.x.imageio.plugins.png.PNGImageWriter",// writerClassName 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project STANDARD_OUTPUT_TYPE,// outputTypes 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new String[] { 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "org.apache.harmony.x.imageio.plugins.png.PNGImageWriterSpi" },// readerSpiNames 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project false,// supportsStandardStreamMetadataFormat 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// nativeStreamMetadataFormatName 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// nativeStreamMetadataFormatClassName 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// extraStreamMetadataFormatNames 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// extraStreamMetadataFormatClassNames 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project false,// supportsStandardImageMetadataFormat 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// nativeImageMetadataFormatName 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// nativeImageMetadataFormatClassName 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null,// extraImageMetadataFormatNames 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null// extraImageMetadataFormatClassNames 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean canEncodeImage(ImageTypeSpecifier type) { 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canEncode = true; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numBands = type.getSampleModel().getNumBands(); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ColorModel colorModel = type.getColorModel(); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bitDepth = colorModel.getPixelSize() / numBands; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colorModel instanceof IndexColorModel) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitDepth != 1 && bitDepth != 2 && bitDepth != 4 && bitDepth != 8) { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (numBands != 1) { 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (numBands == 1) { 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitDepth != 1 && bitDepth != 2 && bitDepth != 4 && bitDepth != 8 && bitDepth != 16) { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (numBands == 2) { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitDepth != 8 && bitDepth != 16) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (numBands == 3) { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitDepth != 8 && bitDepth != 16) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (numBands == 4) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitDepth != 8 && bitDepth != 16) { 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canEncode = false; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return canEncode; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ImageWriter createWriterInstance(Object arg0) throws IOException { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new PNGImageWriter(this); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String getDescription(Locale arg0) { 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "DRL PNG encoder"; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 114