Prototype of RAW decoding in Skia.

src/codec/SkCodec.cpp

Index: src/codec/SkCodec.cpp
diff --git a/src/codec/SkCodec.cpp b/src/codec/SkCodec.cpp
index 87a7ded7dd6bd2e0c0a6da19de1d9782a50553c3..075500b8cf86d212aeee6f2851a7e6bdb7278706 100644
--- a/src/codec/SkCodec.cpp
+++ b/src/codec/SkCodec.cpp
@@ -18,6 +18,7 @@
 #endif
 #include "SkStream.h"
 #include "SkWebpCodec.h"
+#include "SkRawCodec.h"
 
 struct DecoderProc {
     bool (*IsFormat)(const void*, size_t);
@@ -85,6 +86,9 @@ SkCodec* SkCodec::NewFromStream(SkStream* stream,
                 break;
             }
         }
+
+        // Try to treat the input as RAW.
+        codec.reset(SkRawCodec::NewFromStream(streamDeleter.detach()));

[scroggo, 2016/01/06 22:30:20]

I think you need to first check that codec is NULL. Otherwise you'll replace
say, a JPEG codec with a RAW codec, even though we already decided it was a
JPEG. In addition, this will delete the stream (since we gave ownership to the
JPEG codec, and reset will delete that codec, deleting the stream).

[yujieqin, 2016/01/07 09:22:25]

Oh, you are right!

     }
 
     // Set the max size at 128 megapixels (512 MB for kN32).