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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed 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 com.android.internal.telephony.cat;
/**
* {@hide}
*/
public class ImageDescriptor {
// members
int width;
int height;
int codingScheme;
int imageId;
int highOffset;
int lowOffset;
int length;
// constants
static final int CODING_SCHEME_BASIC = 0x11;
static final int CODING_SCHEME_COLOUR = 0x21;
// public static final int ID_LENGTH = 9;
// ID_LENGTH substituted by IccFileHandlerBase.GET_RESPONSE_EF_IMG_SIZE_BYTES
ImageDescriptor() {
width = 0;
height = 0;
codingScheme = 0;
imageId = 0;
highOffset = 0;
lowOffset = 0;
length = 0;
}
/**
* Extract descriptor information about image instance.
*
* @param rawData
* @param valueIndex
* @return ImageDescriptor
*/
static ImageDescriptor parse(byte[] rawData, int valueIndex) {
ImageDescriptor d = new ImageDescriptor();
try {
d.width = rawData[valueIndex++] & 0xff;
d.height = rawData[valueIndex++] & 0xff;
d.codingScheme = rawData[valueIndex++] & 0xff;
// parse image id
d.imageId = (rawData[valueIndex++] & 0xff) << 8;
d.imageId |= rawData[valueIndex++] & 0xff;
// parse offset
d.highOffset = (rawData[valueIndex++] & 0xff); // high byte offset
d.lowOffset = rawData[valueIndex++] & 0xff; // low byte offset
d.length = ((rawData[valueIndex++] & 0xff) << 8 | (rawData[valueIndex++] & 0xff));
} catch (IndexOutOfBoundsException e) {
CatLog.d("ImageDescripter", "parse; failed parsing image descriptor");
d = null;
}
return d;
}
}
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