/[pcsx2_0.9.7]/trunk/3rdparty/portaudio/src/common/pa_cpuload.h
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Contents of /trunk/3rdparty/portaudio/src/common/pa_cpuload.h

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Revision 10 - (show annotations) (download)
Mon Sep 6 11:40:06 2010 UTC (9 years, 11 months ago) by william
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exported r3113 from ./upstream/trunk
1 #ifndef PA_CPULOAD_H
2 #define PA_CPULOAD_H
3 /*
4 * $Id: pa_cpuload.h 1097 2006-08-26 08:27:53Z rossb $
5 * Portable Audio I/O Library CPU Load measurement functions
6 * Portable CPU load measurement facility.
7 *
8 * Based on the Open Source API proposed by Ross Bencina
9 * Copyright (c) 2002 Ross Bencina
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining
12 * a copy of this software and associated documentation files
13 * (the "Software"), to deal in the Software without restriction,
14 * including without limitation the rights to use, copy, modify, merge,
15 * publish, distribute, sublicense, and/or sell copies of the Software,
16 * and to permit persons to whom the Software is furnished to do so,
17 * subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be
20 * included in all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
25 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
26 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
27 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 */
30
31 /*
32 * The text above constitutes the entire PortAudio license; however,
33 * the PortAudio community also makes the following non-binding requests:
34 *
35 * Any person wishing to distribute modifications to the Software is
36 * requested to send the modifications to the original developer so that
37 * they can be incorporated into the canonical version. It is also
38 * requested that these non-binding requests be included along with the
39 * license above.
40 */
41
42 /** @file
43 @ingroup common_src
44
45 @brief Functions to assist in measuring the CPU utilization of a callback
46 stream. Used to implement the Pa_GetStreamCpuLoad() function.
47 */
48
49
50 #ifdef __cplusplus
51 extern "C"
52 {
53 #endif /* __cplusplus */
54
55
56 typedef struct {
57 double samplingPeriod;
58 double measurementStartTime;
59 double averageLoad;
60 } PaUtilCpuLoadMeasurer; /**< @todo need better name than measurer */
61
62 void PaUtil_InitializeCpuLoadMeasurer( PaUtilCpuLoadMeasurer* measurer, double sampleRate );
63 void PaUtil_BeginCpuLoadMeasurement( PaUtilCpuLoadMeasurer* measurer );
64 void PaUtil_EndCpuLoadMeasurement( PaUtilCpuLoadMeasurer* measurer, unsigned long framesProcessed );
65 void PaUtil_ResetCpuLoadMeasurer( PaUtilCpuLoadMeasurer* measurer );
66 double PaUtil_GetCpuLoad( PaUtilCpuLoadMeasurer* measurer );
67
68
69 #ifdef __cplusplus
70 }
71 #endif /* __cplusplus */
72 #endif /* PA_CPULOAD_H */

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