1 /*
2  * Copyright 2014 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef SkImageGeneratorPriv_DEFINED
9 #define SkImageGeneratorPriv_DEFINED
10 
11 #include "SkImageGenerator.h"
12 #include "SkDiscardableMemory.h"
13 
14 /**
15  *  Takes ownership of SkImageGenerator.  If this method fails for
16  *  whatever reason, it will return false and immediatetely delete
17  *  the generator.  If it succeeds, it will modify destination
18  *  bitmap.
19  *
20  *  If generator is NULL, will safely return false.
21  *
22  *  If this fails or when the SkDiscardablePixelRef that is
23  *  installed into destination is destroyed, it will call
24  *  SkDELETE() on the generator.  Therefore, generator should be
25  *  allocated with SkNEW() or SkNEW_ARGS().
26  *
27  *  @param destination Upon success, this bitmap will be
28  *  configured and have a pixelref installed.
29  *
30  *  @param factory If not NULL, this object will be used as a
31  *  source of discardable memory when decoding.  If NULL, then
32  *  SkDiscardableMemory::Create() will be called.
33  *
34  *  @return true iff successful.
35  */
36 bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap* destination,
37                                   SkDiscardableMemory::Factory* factory);
38 
39 #endif
40