/*
* 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 org.apache.sanselan.formats.tga;
/*import java.nawt.Dimension;
import java.nawt.image.BufferedImage;*/
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Map;
import java.util.ArrayList;
import org.apache.sanselan.ImageFormat;
import org.apache.sanselan.ImageInfo;
import org.apache.sanselan.ImageParser;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.common.IImageMetadata;
import org.apache.sanselan.common.byteSources.ByteSource;
import org.apache.sanselan.util.Debug;
import com.google.code.appengine.awt.Dimension;
import com.google.code.appengine.awt.image.BufferedImage;
/*
* This class is just a placeholder. TGA format is not yet supported.
*/
public class TgaImageParser extends ImageParser implements TgaConstants
{
public TgaImageParser()
{
this.setByteOrder(BYTE_ORDER_INTEL);
setDebug(true);
}
public String getName()
{
return "Tga";
}
public String getDefaultExtension()
{
return DEFAULT_EXTENSION;
}
private static final String DEFAULT_EXTENSION = ".tga";
private static final String ACCEPTED_EXTENSIONS[] = {
".tga", ".tpic",
};
protected String[] getAcceptedExtensions()
{
return ACCEPTED_EXTENSIONS;
}
protected ImageFormat[] getAcceptedTypes()
{
return new ImageFormat[]{
ImageFormat.IMAGE_FORMAT_TGA, //
};
}
public IImageMetadata getMetadata(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
public byte[] getICCProfileBytes(ByteSource byteSource)
throws ImageReadException, IOException
{
return null;
}
private static final int TGA_FILE_HEADER_LENGTH = 18;
public Dimension getImageSize(ByteSource byteSource)
throws ImageReadException, IOException
{
// int length = (int) byteSource.getLength();
// if (length < TGA_FILE_HEADER_LENGTH)
// return null;
InputStream is = byteSource.getInputStream();
is.skip(12);
int width = this.read2Bytes("image width", is, "image width");
int height = this.read2Bytes("image height", is, "image height");
return new Dimension(width, height);
}
private static final int TGA_FILE_FOOTER_LENGTH = 26;
private static final String TGA_FILE_FOOTER_SIGNATURE = "TRUEVISION-XFILE";
private final boolean isNewTGAFormat(ByteSource byteSource)
throws ImageReadException, IOException
{
int length = (int) byteSource.getLength();
if (length < TGA_FILE_FOOTER_LENGTH)
return true;
InputStream is = byteSource.getInputStream(length
- TGA_FILE_FOOTER_LENGTH);
byte bytes[] = this.readByteArray("tga_file_footer",
TGA_FILE_FOOTER_LENGTH, is, "tga_file_footer");
Debug.debug("bytes", bytes);
Debug.debug("kTGA_FILE_FOOTER_SIGNATURE", TGA_FILE_FOOTER_SIGNATURE);
Debug.debug("kTGA_FILE_FOOTER_SIGNATURE", TGA_FILE_FOOTER_SIGNATURE
.length());
return this.compareByteArrays(bytes, 8, TGA_FILE_FOOTER_SIGNATURE
.getBytes(), 0, TGA_FILE_FOOTER_SIGNATURE.length());
}
private static final int TGA_IMAGE_TYPE_NO_IMAGE = 0;
private static final int UNCOMPRESSED_COLOR_MAPPED = 1;
private static final int UNCOMPRESSED_RGB = 2;
private static final int UNCOMPRESSED_BLACK_AND_WHITE = 3;
private static final int COMPRESSED_COLOR_MAPPED_RLE = 9;
private static final int COMPRESSED_RGB_RLE = 10;
private static final int COMPRESSED_BLACK_AND_WHITE = 11;
private static final int COMPRESSED_COLOR_MAPPED_DATA_HUFFMAN_DELTA_RLE = 32;
private static final int COMPRESSED_COLOR_MAPPED_DATA_RLE = 33;
// @Override
// public final ImageInfo getImageInfo(ByteSource byteSource)
// throws ImageReadException, IOException
// {
//// int length = (int) byteSource.getLength();
//// if (length < TGA_FILE_HEADER_LENGTH)
//// return null;
//
// InputStream is = byteSource.getInputStream();
//
// int id_string_length = this.readByte("id_string_length", is,
// "id_string_length");
// int color_map_type = this.readByte("color_map_type", is,
// "color_map_type");
// int image_type = this.readByte("image_type", is, "image_type");
//
// int color_map_first_entry_index = this.read2Bytes(
// "color_map_first_entry_index", is,
// "color_map_first_entry_index");
// int color_map_length = this.read2Bytes("color_map_length", is,
// "color_map_length");
// int color_map_entry_size = this.readByte("color_map_entry_size", is,
// "color_map_entry_size");
//
// int origin_x = this.read2Bytes("origin_x", is, "origin_x");
// int origin_y = this.read2Bytes("origin_y", is, "origin_y");
//
// int width = this.read2Bytes("image width", is, "image width");
// int height = this.read2Bytes("image height", is, "image height");
//
// int pixel_depth = this.readByte("pixel_depth", is, "pixel_depth");
// int image_descriptor = this.readByte("image_descriptor", is,
// "image_descriptor");
// // charles
//
// switch (image_type)
// {
// case UNCOMPRESSED_COLOR_MAPPED :
// break;
// case UNCOMPRESSED_RGB :
// break;
// case UNCOMPRESSED_BLACK_AND_WHITE :
// break;
// case COMPRESSED_COLOR_MAPPED_RLE :
// break;
// case COMPRESSED_RGB_RLE :
// break;
// case COMPRESSED_BLACK_AND_WHITE :
// break;
// case COMPRESSED_COLOR_MAPPED_DATA_HUFFMAN_DELTA_RLE :
// break;
// case COMPRESSED_COLOR_MAPPED_DATA_RLE :
// break;
//
// default :
//
// }
// String FormatDetails;
// int BitsPerPixel;
// ArrayList Comments;
// ImageFormat Format = ImageFormat.IMAGE_FORMAT_TGA;
// String FormatName = Format.name;
// String MimeType = "image/tga";
// int NumberOfImages = 1; // charles could have thumbnail(s).
// int PhysicalHeightDpi;
// float PhysicalHeightInch;
// int PhysicalWidthDpi;
// float PhysicalWidthInch;
// boolean isProgressive = false;
// boolean isTransparent = pixel_depth > 24;
// boolean usesPalette;
// int ColorType;
//
// return null;
//// return new ImageInfo(FormatDetails, BitsPerPixel, Comments, Format,
//// FormatName, height, MimeType, NumberOfImages,
//// PhysicalHeightDpi, PhysicalHeightInch, PhysicalWidthDpi,
//// PhysicalWidthInch, width, isProgressive, isTransparent,
//// usesPalette, ColorType);
//
// // boolean is_new_tga_format = isNewTGAFormat(byteSource);
// //
// // Debug.debug("is_new_tga_format", is_new_tga_format);
// }
public boolean dumpImageFile(PrintWriter pw, ByteSource byteSource)
throws ImageReadException, IOException
{
return false;
}
/* public BufferedImage getBufferedImage(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}*/
// public void writeImage(BufferedImage src, OutputStream os, Map params)
// throws ImageWriteException, IOException
// {
// return false;
// }
public boolean embedICCProfile(File src, File dst, byte profile[])
{
return false;
}
@Override
public ImageInfo getImageInfo(ByteSource byteSource, Map params)
throws ImageReadException, IOException {
// TODO Auto-generated method stub
return null;
}
@Override
public Dimension getImageSize(ByteSource byteSource, Map params)
throws ImageReadException, IOException {
// TODO Auto-generated method stub
return null;
}
@Override
public String getXmpXml(ByteSource byteSource, Map params)
throws ImageReadException, IOException {
// TODO Auto-generated method stub
return null;
}
@Override
public byte[] getICCProfileBytes(ByteSource byteSource, Map params)
throws ImageReadException, IOException {
// TODO Auto-generated method stub
return null;
}
@Override
public BufferedImage getBufferedImage(ByteSource byteSource, Map params)
throws ImageReadException, IOException {
// TODO Auto-generated method stub
return null;
}
}