Upstream Android modifications to the image encoders/decoders.

include/images/SkBitmapRegionDecoder.h

Index: include/images/SkBitmapRegionDecoder.h
diff --git a/include/images/SkBitmapRegionDecoder.h b/include/images/SkBitmapRegionDecoder.h
new file mode 100644
index 0000000000000000000000000000000000000000..5c8df3e57f2b484abe540a3dc7492302506df7f8
--- /dev/null
+++ b/include/images/SkBitmapRegionDecoder.h
@@ -0,0 +1,46 @@
+/*

[robertphillips, 2013/03/11 18:25:55]

Is this the right header?

[djsollen, 2013/03/11 19:43:24]

Yes, as it is was originally release as part of AOSP.

+ * Copyright 2011 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#ifndef SkBitmapRegionDecoder_DEFINED
+#define SkBitmapRegionDecoder_DEFINED
+
+#include "SkBitmap.h"

[robertphillips, 2013/03/11 18:25:55]

I think we only need "class SkIRect;" here.

[djsollen, 2013/03/11 19:43:24]

Done.

+#include "SkRect.h"
+#include "SkImageDecoder.h"
+#include "SkStream.h"
+

[robertphillips, 2013/03/11 18:25:55]

comment?

+class SkBitmapRegionDecoder {
+public:
+    SkBitmapRegionDecoder(SkImageDecoder *decoder, SkStream *stream,

[robertphillips, 2013/03/11 18:25:55]

line up next line?

+            int width, int height) {
+        fDecoder = decoder;
+        fStream = stream;
+        fWidth = width;
+        fHeight = height;
+    }
+    virtual ~SkBitmapRegionDecoder() {
+        delete fDecoder;
+        fStream->unref();
+    }
+
+    virtual bool decodeRegion(SkBitmap* bitmap, SkIRect rect,

[djsollen, 2013/03/11 17:47:24]

const SkIRect&

+                              SkBitmap::Config pref, int sampleSize);
+

[robertphillips, 2013/03/11 18:25:55]

consts?

[djsollen, 2013/03/11 19:43:24]

Done.

+    virtual int getWidth() { return fWidth; }
+    virtual int getHeight() { return fHeight; }
+
+    virtual SkImageDecoder* getDecoder() { return fDecoder; }
+
+private:
+    SkImageDecoder *fDecoder;
+    SkStream *fStream;
+    int fWidth;
+    int fHeight;
+};
+
+#endif