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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 #include "Timer.h" | 7 #include "Timer.h" |
8 | 8 |
9 Timer::Timer(SkGLContext* gl) | |
10 : fCpu(-1.0) | |
11 , fWall(-1.0) | |
12 , fTruncatedCpu(-1.0) | |
13 , fTruncatedWall(-1.0) | |
14 , fGpu(-1.0) | |
15 #if SK_SUPPORT_GPU | |
16 , fGpuTimer(gl) | |
17 #endif | |
18 {} | |
19 | |
20 void Timer::start() { | |
21 fSysTimer.startWall(); | |
22 fTruncatedSysTimer.startWall(); | |
23 #if SK_SUPPORT_GPU | |
24 fGpuTimer.start(); | |
25 #endif | |
26 fSysTimer.startCpu(); | |
27 fTruncatedSysTimer.startCpu(); | |
28 } | |
29 | |
30 void Timer::end() { | |
31 fCpu = fSysTimer.endCpu(); | |
32 #if SK_SUPPORT_GPU | |
33 //It is important to stop the cpu clocks first, | |
34 //as the following will cpu wait for the gpu to finish. | |
35 fGpu = fGpuTimer.end(); | |
36 #endif | |
37 fWall = fSysTimer.endWall(); | |
38 } | |
39 | |
40 void Timer::truncatedEnd() { | |
41 fTruncatedCpu = fTruncatedSysTimer.endCpu(); | |
42 fTruncatedWall = fTruncatedSysTimer.endWall(); | |
43 } | |
44 | |
45 WallTimer::WallTimer() : fWall(-1.0) {} | |
46 | |
47 void WallTimer::start() { | |
48 fSysTimer.startWall(); | |
49 } | |
50 | |
51 void WallTimer::end() { | |
52 fWall = fSysTimer.endWall(); | |
53 } | |
54 | |
55 SkString HumanizeMs(double ms) { | 9 SkString HumanizeMs(double ms) { |
56 if (ms > 60e+3) return SkStringPrintf("%.3gm", ms/60e+3); | 10 if (ms > 60e+3) return SkStringPrintf("%.3gm", ms/60e+3); |
57 if (ms > 1e+3) return SkStringPrintf("%.3gs", ms/1e+3); | 11 if (ms > 1e+3) return SkStringPrintf("%.3gs", ms/1e+3); |
58 if (ms < 1e-3) return SkStringPrintf("%.3gns", ms*1e+6); | 12 if (ms < 1e-3) return SkStringPrintf("%.3gns", ms*1e+6); |
59 #ifdef SK_BUILD_FOR_WIN | 13 #ifdef SK_BUILD_FOR_WIN |
60 if (ms < 1) return SkStringPrintf("%.3gus", ms*1e+3); | 14 if (ms < 1) return SkStringPrintf("%.3gus", ms*1e+3); |
61 #else | 15 #else |
62 if (ms < 1) return SkStringPrintf("%.3gµs", ms*1e+3); | 16 if (ms < 1) return SkStringPrintf("%.3gµs", ms*1e+3); |
63 #endif | 17 #endif |
64 return SkStringPrintf("%.3gms", ms); | 18 return SkStringPrintf("%.3gms", ms); |
65 } | 19 } |
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