https://source.android.com/ 
interface com.android.photos.SimpleBitmapRegionDecoder
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.android.photos.SimpleBitmapRegionDecoder
  super_class: java.lang.Object
{
  public abstract int getWidth();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int getHeight();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract android.graphics.Bitmap decodeRegion(android.graphics.Rect, android.graphics.BitmapFactory$Options);
    descriptor: (Landroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
            Name  Flags
      wantRegion  
      options     
}
SourceFile: "BitmapRegionTileSource.java"
InnerClasses:
  public Options = android.graphics.BitmapFactory$Options of android.graphics.BitmapFactory