blob: cc565b80fe9ca9575876ce9f6cca6effe7dcc4b8 (
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
|
// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CFPSCounter.h"
#include "irrMath.h"
namespace irr
{
namespace video
{
CFPSCounter::CFPSCounter()
: FPS(60), Primitive(0), StartTime(0), FramesCounted(0),
PrimitivesCounted(0), PrimitiveAverage(0), PrimitiveTotal(0)
{
}
//! returns current fps
s32 CFPSCounter::getFPS() const
{
return FPS;
}
//! returns current primitive count
u32 CFPSCounter::getPrimitive() const
{
return Primitive;
}
//! returns average primitive count of last period
u32 CFPSCounter::getPrimitiveAverage() const
{
return PrimitiveAverage;
}
//! returns accumulated primitive count since start
u32 CFPSCounter::getPrimitiveTotal() const
{
return PrimitiveTotal;
}
//! to be called every frame
void CFPSCounter::registerFrame(u32 now, u32 primitivesDrawn)
{
++FramesCounted;
PrimitiveTotal += primitivesDrawn;
PrimitivesCounted += primitivesDrawn;
Primitive = primitivesDrawn;
const u32 milliseconds = now - StartTime;
if (milliseconds >= 1500 )
{
const f32 invMilli = core::reciprocal ( (f32) milliseconds );
FPS = core::ceil32 ( ( 1000 * FramesCounted ) * invMilli );
PrimitiveAverage = core::ceil32 ( ( 1000 * PrimitivesCounted ) * invMilli );
FramesCounted = 0;
PrimitivesCounted = 0;
StartTime = now;
}
}
} // end namespace video
} // end namespace irr
|