/*
* 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
*/
package javax.imageio.stream;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteOrder;
import org.apache.harmony.luni.util.NotImplementedException;
public abstract class ImageOutputStreamImpl extends ImageInputStreamImpl
implements ImageOutputStream {
private final byte[] buff = new byte[8];
public ImageOutputStreamImpl() {
}
public abstract void write(int b) throws IOException;
public void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
public abstract void write(byte[] b, int off, int len) throws IOException;
public void writeBoolean(boolean v) throws IOException {
write(v ? 1 : 0);
}
public void writeByte(int v) throws IOException {
write(v);
}
public void writeShort(int v) throws IOException {
if (byteOrder == ByteOrder.BIG_ENDIAN) {
buff[0] = (byte) (v >> 8);
buff[1] = (byte) v;
} else {
buff[1] = (byte) (v >> 8);
buff[0] = (byte) v;
}
write(buff, 0, 2);
}
public void writeChar(int v) throws IOException {
writeShort(v);
}
public void writeInt(int v) throws IOException {
if (byteOrder == ByteOrder.BIG_ENDIAN) {
buff[0] = (byte) (v >> 24);
buff[1] = (byte) (v >> 16);
buff[2] = (byte) (v >> 8);
buff[3] = (byte) v;
} else {
buff[3] = (byte) (v >> 24);
buff[2] = (byte) (v >> 16);
buff[1] = (byte) (v >> 8);
buff[0] = (byte) v;
}
write(buff, 0, 4);
}
public void writeLong(long v) throws IOException {
if (byteOrder == ByteOrder.BIG_ENDIAN) {
buff[0] = (byte) (v >> 56);
buff[1] = (byte) (v >> 48);
buff[2] = (byte) (v >> 40);
buff[3] = (byte) (v >> 32);
buff[4] = (byte) (v >> 24);
buff[5] = (byte) (v >> 16);
buff[6] = (byte) (v >> 8);
buff[7] = (byte) (v);
} else {
buff[7] = (byte) (v >> 56);
buff[6] = (byte) (v >> 48);
buff[5] = (byte) (v >> 40);
buff[4] = (byte) (v >> 32);
buff[3] = (byte) (v >> 24);
buff[2] = (byte) (v >> 16);
buff[1] = (byte) (v >> 8);
buff[0] = (byte) (v);
}
write(buff, 0, 8);
}
public void writeFloat(float v) throws IOException {
writeInt(Float.floatToIntBits(v));
}
public void writeDouble(double v) throws IOException {
writeLong(Double.doubleToLongBits(v));
}
public void writeBytes(String s) throws IOException {
write(s.getBytes());
}
public void writeChars(String s) throws IOException {
char[] chs = s.toCharArray();
writeChars(chs, 0, chs.length);
}
public void writeUTF(String s) throws IOException {
ByteOrder byteOrder = getByteOrder();
setByteOrder(ByteOrder.BIG_ENDIAN);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
new DataOutputStream(baos).writeUTF(s);
write(baos.toByteArray(), 0, baos.size());
setByteOrder(byteOrder);
}
public void writeShorts(short[] s, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > s.length)) {
throw new IndexOutOfBoundsException();
}
for (int i = 0; i < len; i++) {
writeShort(s[off + i]);
}
}
public void writeChars(char[] c, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > c.length)) {
throw new IndexOutOfBoundsException();
}
for (int i = 0; i < len; i++) {
writeShort(c[off + i]);
}
}
public void writeInts(int[] i, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > i.length)) {
throw new IndexOutOfBoundsException();
}
for (int n = 0; n < len; n++) {
writeInt(i[off + n]);
}
}
public void writeLongs(long[] l, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > l.length)) {
throw new IndexOutOfBoundsException();
}
for (int i = 0; i < len; i++) {
writeLong(l[off + i]);
}
}
public void writeFloats(float[] f, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > f.length)) {
throw new IndexOutOfBoundsException();
}
for (int i = 0; i < len; i++) {
writeFloat(f[off + i]);
}
}
public void writeDoubles(double[] d, int off, int len) throws IOException {
if ((off < 0) || (len < 0) || (off + len > d.length)) {
throw new IndexOutOfBoundsException();
}
for (int i = 0; i < len; i++) {
writeDouble(d[off + i]);
}
}
public void writeBit(int bit) throws IOException {
writeBits((long) bit, 1);
}
public void writeBits(long bits, int numBits) throws IOException {
checkClosed();
if (bitOffset > 0) {
int oldBitOffset = bitOffset;
int currentByte = read();
if (currentByte == -1) {
currentByte = 0;
} else {
seek(getStreamPosition() - 1);
}
int num = 8 - oldBitOffset;
if (numBits >= num) {
int mask = -1 >>> (32 - num);
currentByte &= ~mask;
numBits -= num;
currentByte |= ((bits >> numBits) & mask);
write(currentByte);
} else {
int offset = oldBitOffset + numBits;
int mask = -1 >>> numBits;
currentByte &= ~(mask << (8 - offset));
currentByte |= ((bits & mask) << (8 - offset));
write(currentByte);
seek(getStreamPosition() - 1);
bitOffset = offset;
numBits = 0;
}
}
while (numBits > 7) {
int mask = -1 >>> 24;
int currentByte = (int) ((bits >> (numBits - 8)) & mask);
write(currentByte);
numBits -= 8;
}
if (numBits > 0) {
int mask = -1 >>> 24;
int currentByte = (int) ((bits << (8 - numBits)) & mask);
write(currentByte);
seek(getStreamPosition() - 1);
bitOffset = numBits;
}
}
protected final void flushBits() throws IOException {
checkClosed();
if (bitOffset == 0) {
return;
}
int offset = bitOffset;
int currentByte = read();
if (currentByte == -1) {
currentByte = 0;
bitOffset = 0;
} else {
seek(getStreamPosition() - 1);
currentByte &= -1 << (8 - offset);
}
write(currentByte);
}
}