Commit source code

.gitignore

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+# Generated by Mac OS X
+.DS_Store
+
+# Generated by VIM
+.*.swp
+
+# Generated by Gradle
+.gradle
+gradle
+gradlew
+gradlew.bat
+
+# Generated by IDEA
+.idea
+*.iml
+
+# Generated by Eclipse
+.metadata
+.settings
+.project
+.classpath
+/bin/
+
+# Generated by Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+
+# Generated by IDE
+local.properties
+
+# Misc
+*.log
+*.bak
+

pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.sdklite</groupId>
+    <artifactId>oss</artifactId>
+    <version>0.0.6</version>
+  </parent>
+
+  <groupId>com.android.gallery3d</groupId>
+  <artifactId>exif</artifactId>
+  <version>0.1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>${project.artifactId}</name>
+
+  <licenses>
+    <license>
+      <name>Apache License</name>
+      <url>http://www.apache.org/licenses/LICENSE-2.0</url>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+
+  <scm>
+    <connection>scm:git:https://github.com/sdklite/${project.artifactId}.git</connection>
+    <developerConnection>scm:git:git@github.com:sdklite/${project.artifactId}.git</developerConnection>
+    <url>https://github.com/sdklite/${project.artifactId}</url>
+    <tag>HEAD</tag>
+  </scm>
+
+  <issueManagement>
+    <system>GitHub Issues</system>
+    <url>https://github.com/sdklite/${project.artifactId}/issues</url>
+  </issueManagement>
+
+  <developers>
+    <developer>
+      <id>johnsonlee</id>
+      <name>Johnson Lee</name>
+      <email>g.johnsonlee@gmail.com</email>
+    </developer>
+  </developers>
+
+</project>

src/main/java/com/android/gallery3d/exif/ByteBufferInputStream.java

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+package com.android.gallery3d.exif;
+
+/*
+ * Copyright (C) 2012 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.
+ */
+
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+
+class ByteBufferInputStream extends InputStream {
+    private ByteBuffer mBuf;
+
+    public ByteBufferInputStream(ByteBuffer buf) {
+        mBuf = buf;
+    }
+
+    @Override
+    public int read() {
+        if (!mBuf.hasRemaining()) {
+            return -1;
+        }
+        return mBuf.get() & 0xFF;
+    }
+
+    @Override
+    public int read(byte[] bytes, int off, int len) {
+        if (!mBuf.hasRemaining()) {
+            return -1;
+        }
+        len = Math.min(len, mBuf.remaining());
+        mBuf.get(bytes, off, len);
+        return len;
+    }
+}

src/main/java/com/android/gallery3d/exif/CountedDataInputStream.java

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+package com.android.gallery3d.exif;
+
+/*
+ * Copyright (C) 2012 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.
+ */
+
+import java.io.EOFException;
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.Charset;
+
+class CountedDataInputStream extends FilterInputStream {
+    private int mCount = 0;
+    // allocate a byte buffer for a long value;
+    private final byte[] mByteArray = new byte[8];
+    private final ByteBuffer mByteBuffer = ByteBuffer.wrap(mByteArray);
+
+    protected CountedDataInputStream(InputStream in) {
+        super(in);
+    }
+
+    public int getReadByteCount() {
+        return mCount;
+    }
+
+    @Override
+    public int read(byte[] b) throws IOException {
+        int r = in.read(b);
+        mCount += (r >= 0) ? r : 0;
+        return r;
+    }
+
+    @Override
+    public int read(byte[] b, int off, int len) throws IOException {
+        int r = in.read(b, off, len);
+        mCount += (r >= 0) ? r : 0;
+        return r;
+    }
+
+    @Override
+    public int read() throws IOException {
+        int r = in.read();
+        mCount += (r >= 0) ? 1 : 0;
+        return r;
+    }
+
+    @Override
+    public long skip(long length) throws IOException {
+        long skip = in.skip(length);
+        mCount += skip;
+        return skip;
+    }
+
+    public void skipOrThrow(long length) throws IOException {
+        if (skip(length) != length) throw new EOFException();
+    }
+
+    public void skipTo(long target) throws IOException {
+        long cur = mCount;
+        long diff = target - cur;
+        assert (diff >= 0);
+        skipOrThrow(diff);
+    }
+
+    public void readOrThrow(byte[] b, int off, int len) throws IOException {
+        int r = read(b, off, len);
+        if (r != len) throw new EOFException();
+    }
+
+    public void readOrThrow(byte[] b) throws IOException {
+        readOrThrow(b, 0, b.length);
+    }
+
+    public void setByteOrder(ByteOrder order) {
+        mByteBuffer.order(order);
+    }
+
+    public ByteOrder getByteOrder() {
+        return mByteBuffer.order();
+    }
+
+    public short readShort() throws IOException {
+        readOrThrow(mByteArray, 0, 2);
+        mByteBuffer.rewind();
+        return mByteBuffer.getShort();
+    }
+
+    public int readUnsignedShort() throws IOException {
+        return readShort() & 0xffff;
+    }
+
+    public int readInt() throws IOException {
+        readOrThrow(mByteArray, 0, 4);
+        mByteBuffer.rewind();
+        return mByteBuffer.getInt();
+    }
+
+    public long readUnsignedInt() throws IOException {
+        return readInt() & 0xffffffffL;
+    }
+
+    public long readLong() throws IOException {
+        readOrThrow(mByteArray, 0, 8);
+        mByteBuffer.rewind();
+        return mByteBuffer.getLong();
+    }
+
+    public String readString(int n) throws IOException {
+        byte[] buf = new byte[n];
+        readOrThrow(buf);
+        return new String(buf, "UTF8");
+    }
+
+    public String readString(int n, Charset charset) throws IOException {
+        byte[] buf = new byte[n];
+        readOrThrow(buf);
+        return new String(buf, charset);
+    }
+}
+