1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* 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 this pixelref will not try
* to delete it.
*
* The pixelref will ref() the colortable (if not NULL).
*
* Returns NULL on failure.
*/
static SkMallocPixelRef* NewDirect(const SkImageInfo&, void* addr,
size_t rowBytes, SkColorTable*);
/**
* Return a new SkMallocPixelRef, automatically allocating storage for the
* pixels.
*
* If rowBytes is 0, an optimal value will be chosen automatically.
* If rowBytes is > 0, then it will be used, unless it is invald for the
* specified info, in which case NULL will be returned (failure).
*
* This pixelref will ref() the specified colortable (if not NULL).
*
* Returns NULL on failure.
*/
static SkMallocPixelRef* NewAllocate(const SkImageInfo& info,
size_t rowBytes, SkColorTable*);
void* getAddr() const { return fStorage; }
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMallocPixelRef)
protected:
SkMallocPixelRef(const SkImageInfo&, void* addr, size_t rb, SkColorTable*,
bool ownPixels);
SkMallocPixelRef(SkFlattenableReadBuffer& buffer);
virtual ~SkMallocPixelRef();
virtual void* onLockPixels(SkColorTable**) SK_OVERRIDE;
virtual void onUnlockPixels() SK_OVERRIDE;
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE;
private:
void* fStorage;
SkColorTable* fCTable;
size_t fRB;
const bool fOwnPixels;
typedef SkPixelRef INHERITED;
};
#endif
|
