Add support to BitmapFactory for decoding a bitmap from a MemoryFile FileDescriptor. (984b5df3) · Commits · e / os / android_frameworks_base

graphics/java/android/graphics/BitmapFactory.java

+13 −1

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package android.graphics;

		import android.content.res.AssetManager;
		import android.content.res.Resources;
		import android.os.MemoryFile;
		import android.util.DisplayMetrics;
		import android.util.TypedValue;

		@@ -435,6 +436,17 @@ public class BitmapFactory {
		* @return the decoded bitmap, or null
		*/
		public static Bitmap decodeFileDescriptor(FileDescriptor fd, Rect outPadding, Options opts) {
		try {
		if (MemoryFile.isMemoryFile(fd)) {
		int mappedlength = MemoryFile.getMappedSize(fd);
		MemoryFile file = new MemoryFile(fd, mappedlength, "r");
		InputStream is = file.getInputStream();
		return decodeStream(is, outPadding, opts);
		}
		} catch (IOException ex) {
		// invalid filedescriptor, no need to call nativeDecodeFileDescriptor()
		return null;
		}
		return nativeDecodeFileDescriptor(fd, outPadding, opts);
		}

		@@ -447,7 +459,7 @@ public class BitmapFactory {
		* @return the decoded bitmap, or null
		*/
		public static Bitmap decodeFileDescriptor(FileDescriptor fd) {
		return nativeDecodeFileDescriptor(fd, null, null);
		return decodeFileDescriptor(fd, null, null);
		}

		private static native Bitmap nativeDecodeStream(InputStream is, byte[] storage,