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Merge pull request #3 from rajkosto/master
Merge of rajkosto ScpToolkit gyro fixes/improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using ScpControl.Shared.Win32; | ||
| using System.ComponentModel; | ||
|
|
||
| namespace ScpControl.Shared.Utilities | ||
| { | ||
| public class AccurateTime | ||
| { | ||
| private long value; | ||
| static private double scale; | ||
|
|
||
| static AccurateTime() //figure out QPF only once | ||
| { | ||
| long currentQpf = 0; | ||
| if (!Kernel32Natives.QueryPerformanceFrequency(out currentQpf)) | ||
| throw new Win32Exception(); | ||
|
|
||
| scale = 1.0 / (double)currentQpf; | ||
| } | ||
|
|
||
| public AccurateTime(long timeSpan) | ||
| { | ||
| value = timeSpan; | ||
| } | ||
|
|
||
| static public AccurateTime Now | ||
| { | ||
| get | ||
| { | ||
| long currentQpc; | ||
| if (!Kernel32Natives.QueryPerformanceCounter(out currentQpc)) | ||
| throw new Win32Exception(); | ||
|
|
||
| return new AccurateTime(currentQpc); | ||
| } | ||
| } | ||
|
|
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| public static AccurateTime operator+(AccurateTime startTime, AccurateTime span) | ||
| { | ||
| return new AccurateTime(startTime.value + span.value); | ||
| } | ||
| public static AccurateTime operator-(AccurateTime startTime, AccurateTime span) | ||
| { | ||
| return new AccurateTime(startTime.value - span.value); | ||
| } | ||
|
|
||
| public double ToSeconds() | ||
| { | ||
| return (double)(value) * scale; | ||
| } | ||
|
|
||
| public override string ToString() | ||
| { | ||
| return ToSeconds().ToString(); | ||
| } | ||
| } | ||
| } |
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