Move MMap to SkData.

include/core/SkData.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
 #ifndef SkData_DEFINED
 #define SkData_DEFINED
 
 #include "SkFlattenable.h"
 
+struct SkFILE;
+
 /**
  *  SkData holds an immutable data buffer. Not only is the data immutable,
  *  but the actual ptr that is returned (by data() or bytes()) is guaranteed
  *  to always be the same for the life of this instance.
  */
 class SK_API SkData : public SkFlattenable {
 public:
     SK_DECLARE_INST_COUNT(SkData)
 
     /**
@@ skipping 56 matching lines @@
     static SkData* NewWithProc(const void* data, size_t length,
                                ReleaseProc proc, void* context);
 
     /**
      *  Create a new dataref from a pointer allocated by malloc. The Data object
      *  takes ownership of that allocation, and will handling calling sk_free.
      */
     static SkData* NewFromMalloc(const void* data, size_t length);
 
     /**
-     *  Create a new dataref from a pointer allocated by mmap. The Data object
-     *  will handle calling munmap().
+     *  Create a new dataref from a SkFILE.
+     *  This does not take ownership of the SkFILE, nor close it.
+     *  The SkFILE must be open for reading only.
+     *  Returns NULL on failure.
      */
-    static SkData* NewFromMMap(const void* data, size_t length);
+    static SkData* NewFromFILE(SkFILE* f);
 
     /**
      *  Create a new dataref using a subset of the data in the specified
      *  src dataref.
      */
     static SkData* NewSubset(const SkData* src, size_t offset, size_t length);
 
     /**
      *  Returns a new empty dataref (or a reference to a shared empty dataref).
      *  New or shared, the caller must see that unref() is eventually called.
@@ skipping 16 matching lines @@
     SkData(const void* ptr, size_t size, ReleaseProc, void* context);
     virtual ~SkData();
 
     typedef SkFlattenable INHERITED;
 };
 
 /** Typedef of SkAutoTUnref<SkData> for automatically unref-ing a SkData. */
 typedef SkAutoTUnref<SkData> SkAutoDataUnref;
 
 #endif