blob: 50b4fecdb72824841da7632ba7846538b5304237 (
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
#include "nw4r/snd/snd_InstancePool.h"
/* Original source:
* kiwi515/ogws
* src/nw4r/snd/snd_InstancePool.cpp
*/
/*******************************************************************************
* headers
*/
#include "common.h"
#include "nw4r/ut/ut_Lock.h" // ut::AutoInterruptLock
#include "nw4r/ut/ut_algorithm.h" // ut::RoundUp
#include "nw4r/NW4RAssert.hpp"
/*******************************************************************************
* functions
*/
namespace nw4r { namespace snd { namespace detail {
u32 PoolImpl::CreateImpl(void *buffer, u32 size, u32 objSize)
{
NW4RAssertPointerNonnull_Line(38, buffer);
ut::AutoInterruptLock lock;
// alignas(4)
char *ptr = static_cast<char *>(ut::RoundUp(buffer, 4));
objSize = ut::RoundUp(objSize, 4);
u32 numObjects = (size - (ptr - static_cast<char *>(buffer))) / objSize;
for (u32 i = 0; i < numObjects; i++, ptr += objSize)
{
PoolImpl *head = reinterpret_cast<PoolImpl *>(ptr);
head->mNext = mNext;
mNext = head;
}
return numObjects;
}
void PoolImpl::DestroyImpl(void *buffer, u32 size)
{
NW4RAssertPointerNonnull_Line(68, buffer);
ut::AutoInterruptLock lock;
void *begin = buffer;
void *end = static_cast<char *>(begin) + size;
for (PoolImpl *ptr = mNext, *prev = this; ptr; ptr = ptr->mNext)
{
if (begin <= ptr && ptr < end)
prev->mNext = ptr->mNext;
else
prev = ptr;
}
}
int PoolImpl::CountImpl() const
{
ut::AutoInterruptLock lock;
int count = 0;
for (PoolImpl *ptr = mNext; ptr; ptr = ptr->mNext)
count++;
return count;
}
void *PoolImpl::AllocImpl()
{
ut::AutoInterruptLock lock;
if (!mNext)
return nullptr;
PoolImpl *head = mNext;
mNext = head->mNext;
return head;
}
void PoolImpl::FreeImpl(void *ptr)
{
ut::AutoInterruptLock lock;
PoolImpl *head = static_cast<PoolImpl *>(ptr);
head->mNext = mNext;
mNext = head;
}
}}} // namespace nw4r::snd::detail
|
