SnapShotFrameCache.cpp
1.01 KB
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
#include <cuda_runtime.h>
#include "SnapShotFrameCache.h"
void SnapShotFrameCache::init_cache(unsigned int cache_len, unsigned int cache_count)
{
this->cache_len = cache_len;
this->cache_count = cache_count;
alloc();
}
bool SnapShotFrameCache::alloc()
{
for (size_t i = 0; i < cache_count; i++)
{
void * frame = NULL;
auto cudaStatus = cudaMalloc((void**)&frame, cache_len);
if (cudaStatus != cudaSuccess)
{
return false;
}
cache.push(frame);
}
return true;
}
void * SnapShotFrameCache::get_frame()
{
if (cache.empty())
{
alloc();
if (!cache.empty())
{
void * frame = cache.front();
cache.pop();
return frame;
}
else
{
return nullptr;
}
}
else
{
void * frame = cache.front();
cache.pop();
return frame;
}
}
void SnapShotFrameCache::release(void * frame)
{
cache.push(frame);
}
void SnapShotFrameCache::free()
{
while (!cache.empty())
{
void * frame = cache.front();
cudaFree(frame);
cache.pop();
}
}