Prototype of RAW decoding in Skia.

src/codec/SkAndroidRawCodec.h

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkAndroidRawCodec_DEFINED
+#define SkAndroidRawCodec_DEFINED
+
+#include "SkAndroidCodec.h"
+#include "SkCodec.h"
+#include "SkEncodedFormat.h"
+#include "SkRawCodec.h"
+#include "SkStream.h"
+#include "SkTypes.h"
+
+/**
+ *  Abstract interface defining image codec functionality that is necessary for
+ *  Android.
+ */
+class SkAndroidRawCodec : public SkAndroidCodec {

[djsollen, 2015/12/16 20:35:34]

Not sure that you need this file at all, but I'll let Matt and Leon confirm.

[scroggo, 2015/12/18 15:56:26]

SkAndroidCodec.cpp needs to be able to call the constructor.

I'm not sure about the name though. We called the analogous version for Webp
SkWebpAdapterCodec. To match, this should be SkRawAdapterCodec. (Maybe these
aren't the best names, but I'd like for them to at least be consistent.)

[yujieqin, 2016/01/06 18:47:18]

Renamed the files and class.

+public:
+
+    explicit SkAndroidRawCodec(SkRawCodec*);
+
+    virtual ~SkAndroidRawCodec() {}
+
+protected:
+
+    //SkEncodedFormat onGetEncodedFormat() const override { return kRAW_SkEncodedFormat; };

[scroggo, 2015/12/18 15:56:26]

I'm assuming this file does not build with this commented out?

[yujieqin, 2016/01/06 18:47:18]

The default implementation of getEncodedFormat() already does what we need. And
the code builds for now.

+
+    SkISize onGetSampledDimensions(int sampleSize) const override;
+
+    bool onGetSupportedSubset(SkIRect* desiredSubset) const override { return false; }
+
+    SkCodec::Result onGetAndroidPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
+            const AndroidOptions& options) override;
+
+private:
+
+    typedef SkAndroidCodec INHERITED;
+};
+#endif // SkAndroidRawCodec_DEFINED