Make sp variants for 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 <stdio.h>
 
 #include "SkRefCnt.h"
 
 class SkStream;
 
+#define SK_SUPPORT_LEGACY_DATA_FACTORIES
+
 /**
  *  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 SkRefCnt {
 public:
     /**
      *  Returns the number of bytes stored.
      */
@@ skipping 33 matching lines @@
      *  length to the size of the data. If buffer is NULL, it is ignored, and
      *  only the computed number of bytes is returned.
      */
     size_t copyRange(size_t offset, size_t length, void* buffer) const;
 
     /**
      *  Returns true if these two objects have the same length and contents,
      *  effectively returning 0 == memcmp(...)
      */
     bool equals(const SkData* other) const;
+    bool equals(sk_sp<const SkData>& other) const { return this->equals(other.get()); }
 
     /**
      *  Function that, if provided, will be called when the SkData goes out
      *  of scope, allowing for custom allocation/freeing of the data's contents.
      */
     typedef void (*ReleaseProc)(const void* ptr, void* context);
 
     /**
      *  Create a new dataref by copying the specified data
      */
-    static SkData* NewWithCopy(const void* data, size_t length);
+    static sk_sp<SkData> MakeWithCopy(const void* data, size_t length);
 
+    
     /**
      *  Create a new data with uninitialized contents. The caller should call writable_data()
      *  to write into the buffer, but this must be done before another ref() is made.
      */
-    static SkData* NewUninitialized(size_t length);
+    static sk_sp<SkData> MakeUninitialized(size_t length);
 
     /**
      *  Create a new dataref by copying the specified c-string
      *  (a null-terminated array of bytes). The returned SkData will have size()
      *  equal to strlen(cstr) + 1. If cstr is NULL, it will be treated the same
      *  as "".
      */
-    static SkData* NewWithCString(const char cstr[]);
+    static sk_sp<SkData> MakeWithCString(const char cstr[]);
 
     /**
      *  Create a new dataref, taking the ptr as is, and using the
      *  releaseproc to free it. The proc may be NULL.
      */
-    static SkData* NewWithProc(const void* ptr, size_t length, ReleaseProc proc, void* context);
+    static sk_sp<SkData> MakeWithProc(const void* ptr, size_t length, ReleaseProc proc, void* ctx);
 
     /**
      *  Call this when the data parameter is already const and will outlive the lifetime of the
      *  SkData. Suitable for with const globals.
      */
-    static SkData* NewWithoutCopy(const void* data, size_t length) {
-        return NewWithProc(data, length, DummyReleaseProc, NULL);
+    static sk_sp<SkData> MakeWithoutCopy(const void* data, size_t length) {
+        return MakeWithProc(data, length, DummyReleaseProc, nullptr);
     }
 
     /**
      *  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);
+    static sk_sp<SkData> MakeFromMalloc(const void* data, size_t length);
 
     /**
      *  Create a new dataref the file with the specified path.
      *  If the file cannot be opened, this returns NULL.
      */
-    static SkData* NewFromFileName(const char path[]);
+    static sk_sp<SkData> MakeFromFileName(const char path[]);
 
     /**
      *  Create a new dataref from a stdio FILE.
      *  This does not take ownership of the FILE, nor close it.
      *  The caller is free to close the FILE at its convenience.
      *  The FILE must be open for reading only.
      *  Returns NULL on failure.
      */
-    static SkData* NewFromFILE(FILE* f);
+    static sk_sp<SkData> MakeFromFILE(FILE* f);
 
     /**
      *  Create a new dataref from a file descriptor.
      *  This does not take ownership of the file descriptor, nor close it.
      *  The caller is free to close the file descriptor at its convenience.
      *  The file descriptor must be open for reading only.
      *  Returns NULL on failure.
      */
-    static SkData* NewFromFD(int fd);
+    static sk_sp<SkData> MakeFromFD(int fd);
 
     /**
      *  Attempt to read size bytes into a SkData. If the read succeeds, return the data,
      *  else return NULL. Either way the stream's cursor may have been changed as a result
      *  of calling read().
      */
-    static SkData* NewFromStream(SkStream*, size_t size);
+    static sk_sp<SkData> MakeFromStream(SkStream*, size_t size);
 
     /**
      *  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);
+    static sk_sp<SkData> MakeSubset(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.
      */
-    static SkData* NewEmpty();
+    static sk_sp<SkData> MakeEmpty();
+
+#ifdef SK_SUPPORT_LEGACY_DATA_FACTORIES
+    static SkData* NewWithCopy(const void* data, size_t length) {
+        return MakeWithCopy(data, length).release();
+    }
+    static SkData* NewUninitialized(size_t length) {
+        return MakeUninitialized(length).release();
+    }
+    static SkData* NewWithCString(const char cstr[]) {
+        return MakeWithCString(cstr).release();
+    }
+    static SkData* NewWithProc(const void* ptr, size_t length, ReleaseProc proc, void* context) {
+        return MakeWithProc(ptr, length, proc, context).release();
+    }
+    static SkData* NewWithoutCopy(const void* data, size_t length) {
+        return MakeWithoutCopy(data, length).release();
+    }
+    static SkData* NewFromMalloc(const void* data, size_t length) {
+        return MakeFromMalloc(data, length).release();
+    }
+    static SkData* NewFromFileName(const char path[]) { return MakeFromFileName(path).release(); }
+    static SkData* NewFromFILE(FILE* f) { return MakeFromFILE(f).release(); }
+    static SkData* NewFromFD(int fd) { return MakeFromFD(fd).release(); }
+    static SkData* NewFromStream(SkStream* stream, size_t size) {
+        return MakeFromStream(stream, size).release();
+    }
+    static SkData* NewSubset(const SkData* src, size_t offset, size_t length) {
+        return MakeSubset(src, offset, length).release();
+    }
+    static SkData* NewEmpty() { return MakeEmpty().release(); }
+#endif
 
 private:
     ReleaseProc fReleaseProc;
     void*       fReleaseProcContext;
     void*       fPtr;
     size_t      fSize;
 
     SkData(const void* ptr, size_t size, ReleaseProc, void* context);
     explicit SkData(size_t size);   // inplace new/delete
     virtual ~SkData();
 
 
     // Objects of this type are sometimes created in a custom fashion using sk_malloc_throw and
     // therefore must be sk_freed. We overload new to also call sk_malloc_throw so that memory
     // can be unconditionally released using sk_free in an overloaded delete. Overloading regular
     // new means we must also overload placement new.
     void* operator new(size_t size) { return sk_malloc_throw(size); }
     void* operator new(size_t, void* p) { return p; }
     void operator delete(void* p) { sk_free(p); }
 
     // Called the first time someone calls NewEmpty to initialize the singleton.
     friend SkData* sk_new_empty_data();
 
     // shared internal factory
-    static SkData* PrivateNewWithCopy(const void* srcOrNull, size_t length);
+    static sk_sp<SkData> PrivateNewWithCopy(const void* srcOrNull, size_t length);
 
     static void DummyReleaseProc(const void*, void*) {}
 
     typedef SkRefCnt INHERITED;
 };
 
+#ifdef SK_SUPPORT_LEGACY_DATA_FACTORIES
 /** Typedef of SkAutoTUnref<SkData> for automatically unref-ing a SkData. */
 typedef SkAutoTUnref<SkData> SkAutoDataUnref;
+#endif
 
 #endif