blob: 4fc826569eb40ba5cd51ab287bed2e87242e4a62 (
plain)
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
|
/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrAllocPool_DEFINED
#define GrAllocPool_DEFINED
#include "SkTypes.h"
class GrAllocPool : SkNoncopyable {
public:
GrAllocPool(size_t blockSize = 0);
~GrAllocPool();
/**
* Frees all blocks that have been allocated with alloc().
*/
void reset();
/**
* Returns a block of memory bytes size big. This address must not be
* passed to realloc/free/delete or any other function that assumes the
* address was allocated by malloc or new (because it hasn't).
*/
void* alloc(size_t bytes);
/**
* Releases the most recently allocated bytes back to allocpool.
*/
void release(size_t bytes);
private:
struct Block;
Block* fBlock;
size_t fMinBlockSize;
#ifdef SK_DEBUG
int fBlocksAllocated;
void validate() const;
#else
void validate() const {}
#endif
};
template <typename T> class GrTAllocPool {
public:
GrTAllocPool(int count) : fPool(count * sizeof(T)) {}
void reset() { fPool.reset(); }
T* alloc() { return (T*)fPool.alloc(sizeof(T)); }
private:
GrAllocPool fPool;
};
#endif
|
