Squashed 'external/libwebp/libwebp/' content from commit dd7364c3c

git-subtree-dir: external/libwebp/libwebp
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swig/README.md

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+# SWIG bindings
+
+## Building
+
+### JNI SWIG bindings
+
+```shell
+ $ gcc -shared -fPIC -fno-strict-aliasing -O2 \
+       -I/path/to/your/jdk/includes \
+       libwebp_java_wrap.c \
+       -lwebp \
+       -o libwebp_jni.so
+```
+
+Example usage:
+
+```java
+import com.google.webp.libwebp;
+
+import java.lang.reflect.Method;
+
+public class libwebp_jni_example {
+  static {
+    System.loadLibrary("webp_jni");
+  }
+
+  /**
+   * usage: java -cp libwebp.jar:. libwebp_jni_example
+   */
+  public static void main(String argv[]) {
+    final int version = libwebp.WebPGetDecoderVersion();
+    System.out.println("libwebp version: " + Integer.toHexString(version));
+
+    System.out.println("libwebp methods:");
+    final Method[] libwebpMethods = libwebp.class.getDeclaredMethods();
+    for (int i = 0; i < libwebpMethods.length; i++) {
+      System.out.println(libwebpMethods[i]);
+    }
+  }
+}
+```
+
+```shell
+ $ javac -cp libwebp.jar libwebp_jni_example.java
+ $ java -Djava.library.path=. -cp libwebp.jar:. libwebp_jni_example
+```
+
+### Python SWIG bindings:
+
+```shell
+ $ python setup.py build_ext
+ $ python setup.py install --prefix=pylocal
+```
+
+Example usage:
+
+```python
+import glob
+import sys
+sys.path.append(glob.glob('pylocal/lib/python*/site-packages')[0])
+
+from com.google.webp import libwebp
+print "libwebp decoder version: %x" % libwebp.WebPGetDecoderVersion()
+
+print "libwebp attributes:"
+for attr in dir(libwebp): print attr
+```