auto import from //depot/cupcake/@135843
diff --git a/awt/javax/imageio/stream/ImageInputStreamImpl.java b/awt/javax/imageio/stream/ImageInputStreamImpl.java
new file mode 100644
index 0000000..d79da41
--- /dev/null
+++ b/awt/javax/imageio/stream/ImageInputStreamImpl.java
@@ -0,0 +1,418 @@
+/*
+ * 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.stream;
+
+import java.io.EOFException;
+import java.io.IOException;
+import java.nio.ByteOrder;
+
+/**
+ * The ImageInputStreamImpl abstract class implements the ImageInputStream
+ * interface.
+ *
+ * @since Android 1.0
+ */
+public abstract class ImageInputStreamImpl implements ImageInputStream {
+
+ /**
+ * The byte order.
+ */
+ protected ByteOrder byteOrder = ByteOrder.BIG_ENDIAN;
+
+ /**
+ * The stream position.
+ */
+ protected long streamPos = 0;
+
+ /**
+ * The flushed position.
+ */
+ protected long flushedPos = 0;
+
+ /**
+ * The bit offset.
+ */
+ protected int bitOffset = 0;
+
+ /**
+ * The closed.
+ */
+ private boolean closed = false;
+
+ /**
+ * The position stack.
+ */
+ private final PositionStack posStack = new PositionStack();
+
+ /**
+ * Instantiates a new ImageInputStreamImpl.
+ */
+ public ImageInputStreamImpl() {
+ }
+
+ /**
+ * Check if the stream is closed and if true, throws an IOException.
+ *
+ * @throws IOException
+ * if the stream is closed.
+ */
+ protected final void checkClosed() throws IOException {
+ if (closed) {
+ throw new IOException("stream is closed");
+ }
+ }
+
+ public void setByteOrder(ByteOrder byteOrder) {
+ this.byteOrder = byteOrder;
+ }
+
+ public ByteOrder getByteOrder() {
+ return byteOrder;
+ }
+
+ public abstract int read() throws IOException;
+
+ public int read(byte[] b) throws IOException {
+ return read(b, 0, b.length);
+ }
+
+ public abstract int read(byte[] b, int off, int len) throws IOException;
+
+ public void readBytes(IIOByteBuffer buf, int len) throws IOException {
+ if (buf == null) {
+ throw new NullPointerException("buffer is NULL");
+ }
+
+ byte[] b = new byte[len];
+ len = read(b, 0, b.length);
+
+ buf.setData(b);
+ buf.setOffset(0);
+ buf.setLength(len);
+ }
+
+ public boolean readBoolean() throws IOException {
+ int b = read();
+ if (b < 0) {
+ throw new EOFException("EOF reached");
+ }
+ return b != 0;
+ }
+
+ public byte readByte() throws IOException {
+ int b = read();
+ if (b < 0) {
+ throw new EOFException("EOF reached");
+ }
+ return (byte)b;
+ }
+
+ public int readUnsignedByte() throws IOException {
+ int b = read();
+ if (b < 0) {
+ throw new EOFException("EOF reached");
+ }
+ return b;
+ }
+
+ public short readShort() throws IOException {
+ int b1 = read();
+ int b2 = read();
+
+ if (b1 < 0 || b2 < 0) {
+ throw new EOFException("EOF reached");
+ }
+
+ return byteOrder == ByteOrder.BIG_ENDIAN ? (short)((b1 << 8) | (b2 & 0xff))
+ : (short)((b2 << 8) | (b1 & 0xff));
+ }
+
+ public int readUnsignedShort() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public char readChar() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public int readInt() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long readUnsignedInt() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long readLong() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public float readFloat() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public double readDouble() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public String readLine() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public String readUTF() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(byte[] b, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(byte[] b) throws IOException {
+ readFully(b, 0, b.length);
+ }
+
+ public void readFully(short[] s, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(char[] c, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(int[] i, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(long[] l, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(float[] f, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void readFully(double[] d, int off, int len) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long getStreamPosition() throws IOException {
+ checkClosed();
+ return streamPos;
+ }
+
+ public int getBitOffset() throws IOException {
+ checkClosed();
+ return bitOffset;
+ }
+
+ public void setBitOffset(int bitOffset) throws IOException {
+ checkClosed();
+ this.bitOffset = bitOffset;
+ }
+
+ public int readBit() throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long readBits(int numBits) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long length() {
+ return -1L;
+ }
+
+ public int skipBytes(int n) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public long skipBytes(long n) throws IOException {
+ // -- TODO implement
+ throw new UnsupportedOperationException("Not implemented yet");
+ }
+
+ public void seek(long pos) throws IOException {
+ checkClosed();
+ if (pos < getFlushedPosition()) {
+ throw new IllegalArgumentException("trying to seek before flushed pos");
+ }
+ bitOffset = 0;
+ streamPos = pos;
+ }
+
+ public void mark() {
+ try {
+ posStack.push(getStreamPosition());
+ } catch (IOException e) {
+ e.printStackTrace();
+ throw new RuntimeException("Stream marking error");
+ }
+ }
+
+ public void reset() throws IOException {
+ // -- TODO bit pos
+ if (!posStack.isEmpty()) {
+ long p = posStack.pop();
+ if (p < flushedPos) {
+ throw new IOException("marked position lies in the flushed portion of the stream");
+ }
+ seek(p);
+ }
+ }
+
+ public void flushBefore(long pos) throws IOException {
+ if (pos > getStreamPosition()) {
+ throw new IndexOutOfBoundsException("Trying to flush outside of current position");
+ }
+ if (pos < flushedPos) {
+ throw new IndexOutOfBoundsException("Trying to flush within already flushed portion");
+ }
+ flushedPos = pos;
+ // -- TODO implement
+ }
+
+ public void flush() throws IOException {
+ flushBefore(getStreamPosition());
+ }
+
+ public long getFlushedPosition() {
+ return flushedPos;
+ }
+
+ public boolean isCached() {
+ return false; // def
+ }
+
+ public boolean isCachedMemory() {
+ return false; // def
+ }
+
+ public boolean isCachedFile() {
+ return false; // def
+ }
+
+ public void close() throws IOException {
+ checkClosed();
+ closed = true;
+
+ }
+
+ /**
+ * Finalizes this object.
+ *
+ * @throws Throwable
+ * if an error occurs.
+ */
+ @Override
+ protected void finalize() throws Throwable {
+ if (!closed) {
+ try {
+ close();
+ } finally {
+ super.finalize();
+ }
+ }
+ }
+
+ /**
+ * The Class PositionStack.
+ */
+ private static class PositionStack {
+
+ /**
+ * The Constant SIZE.
+ */
+ private static final int SIZE = 10;
+
+ /**
+ * The values.
+ */
+ private long[] values = new long[SIZE];
+
+ /**
+ * The pos.
+ */
+ private int pos = 0;
+
+ /**
+ * Push.
+ *
+ * @param v
+ * the v.
+ */
+ void push(long v) {
+ if (pos >= values.length) {
+ ensure(pos + 1);
+ }
+ values[pos++] = v;
+ }
+
+ /**
+ * Pop.
+ *
+ * @return the long.
+ */
+ long pop() {
+ return values[--pos];
+ }
+
+ /**
+ * Checks if is empty.
+ *
+ * @return true, if is empty.
+ */
+ boolean isEmpty() {
+ return pos == 0;
+ }
+
+ /**
+ * Ensure.
+ *
+ * @param size
+ * the size.
+ */
+ private void ensure(int size) {
+ long[] arr = new long[Math.max(2 * values.length, size)];
+ System.arraycopy(values, 0, arr, 0, values.length);
+ values = arr;
+ }
+ }
+}