Revert of remvoe duplicate impl for SkImageInfo flattening

include/core/SkMallocPixelRef.h

 
 /*
  * Copyright 2008 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 SkMallocPixelRef_DEFINED
 #define SkMallocPixelRef_DEFINED
 
 #include "SkPixelRef.h"
 
 /** We explicitly use the same allocator for our pixels that SkMask does,
     so that we can freely assign memory allocated by one class to the other.
 */
 class SkMallocPixelRef : public SkPixelRef {
 public:
-    /**
-     *  Return a new SkMallocPixelRef with the provided pixel storage, rowBytes,
-     *  and optional colortable. The caller is responsible for managing the
-     *  lifetime of the pixel storage buffer, as the pixelref will not try
-     *  to delete the storage.
-     *
-     *  This pixelref will ref() the specified colortable (if not NULL).
-     *
-     *  Returns NULL on failure.
+    /** Allocate the specified buffer for pixels. The memory is freed when the
+        last owner of this pixelref is gone. If addr is NULL, sk_malloc_throw()
+        is called to allocate it.
      */
-    static SkMallocPixelRef* NewDirect(const SkImageInfo&, void* addr,
-                                       size_t rowBytes, SkColorTable*);
-
-    /**
-     *  Return a new SkMallocPixelRef, automatically allocating storage for the
-     *  pixels. If rowBytes are 0, an optimal value will be chosen automatically.
-     *  If rowBytes is > 0, then it will be respected, or NULL will be returned
-     *  if rowBytes is invalid for the specified info.
-     *
-     *  This pixelref will ref() the specified colortable (if not NULL).
-     *
-     *  Returns NULL on failure.
-     */
-    static SkMallocPixelRef* NewAllocate(const SkImageInfo& info,
-                                         size_t rowBytes, SkColorTable*);
+    SkMallocPixelRef(void* addr, size_t size, SkColorTable* ctable, bool ownPixels = true);
+    virtual ~SkMallocPixelRef();
 
     void* getAddr() const { return fStorage; }
 
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMallocPixelRef)
 
 protected:
-    virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE;
-    virtual void onUnlockPixels() SK_OVERRIDE;
-    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
-    virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE;
+    // overrides from SkPixelRef
+    virtual void* onLockPixels(SkColorTable**);
+    virtual void onUnlockPixels();
 
     SkMallocPixelRef(SkFlattenableReadBuffer& buffer);
-    SkMallocPixelRef(const SkImageInfo&, void* addr, size_t rb, SkColorTable*,
-                     bool ownsPixels);
-    virtual ~SkMallocPixelRef();
+    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
+
+    // Returns the allocation size for the pixels
+    virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE { return fSize; }
 
 private:
-    void*               fStorage;
-    SkColorTable*       fCTable;
-    size_t              fRB;
-    const bool          fOwnPixels;
+    void*           fStorage;
+    size_t          fSize;
+    SkColorTable*   fCTable;
+    bool            fOwnPixels;
 
     typedef SkPixelRef INHERITED;
 };
 
 
 #endif