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
74
75
76
77
78
79
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef TONY_MPAL_MEMORY
#define TONY_MPAL_MEMORY
#include "common/scummsys.h"
#include "common/list.h"
namespace Tony {
namespace MPAL {
typedef void *MpalHandle;
struct MemoryItem {
uint32 _id;
uint32 _size;
int _lockCount;
#ifndef NO_CXX11_ALIGNAS
alignas(max_align_t)
#endif
byte _data[1];
// Casting for access to data
operator void *() { return &_data[0]; }
};
class MemoryManager {
private:
static MemoryItem *getItem(MpalHandle handle);
public:
static MpalHandle allocate(uint32 size, uint flags);
static void *alloc(uint32 size, uint flags);
static void freeBlock(MpalHandle handle);
static void destroyItem(MpalHandle handle);
static uint32 getSize(MpalHandle handle);
static void *lockItem(MpalHandle handle);
static void unlockItem(MpalHandle handle);
};
// defines
#define globalAlloc(flags, size) MemoryManager::alloc(size, flags)
#define globalAllocate(flags, size) MemoryManager::allocate(size, flags)
#define globalFree(handle) MemoryManager::freeBlock(handle)
#define globalDestroy(handle) MemoryManager::destroyItem(handle)
#define globalLock(handle) MemoryManager::lockItem(handle)
#define globalUnlock(handle) MemoryManager::unlockItem(handle)
#define globalSize(handle) MemoryManager::getSize(handle)
#define GMEM_FIXED 1
#define GMEM_MOVEABLE 2
#define GMEM_ZEROINIT 4
const uint32 BLOCK_ID = 0x12345678;
} // end of namespace MPAL
} // end of namespace Tony
#endif
|
