/[svn]/linuxsampler/trunk/src/engines/gig/Profiler.h
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Contents of /linuxsampler/trunk/src/engines/gig/Profiler.h

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Revision 770 - (show annotations) (download) (as text)
Sun Sep 11 15:56:29 2005 UTC (18 years, 6 months ago) by schoenebeck
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* synthesis core optimizations

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #ifndef __LS_GIG_PROFILER_H__
24 #define __LS_GIG_PROFILER_H__
25
26 #include <stdio.h>
27
28 #include "../../common/global.h"
29 #include "../../common/RTMath.h"
30
31 namespace LinuxSampler { namespace gig {
32
33 /** @brief Synthesis Profiler
34 *
35 * Provides a benchmark algorithm to return a somewhat abstract Bogo
36 * Voices value to reflect the voice count limit of the running system
37 * with the given instrument patch und circumstances. Note that the
38 * real voice count limitation will in practice be lower than this Bogo
39 * Voice value.
40 */
41 class Profiler {
42 public:
43 static void Reset( void )
44 {
45 profilingSamples = 0;
46 profilingTime = 0;
47 }
48
49 static void enable() {
50 bEnabled = true;
51 }
52
53 static bool isEnabled() {
54 return bEnabled;
55 }
56
57 static unsigned int GetBogoVoices( unsigned int SamplingFreq );
58
59 static RTMath::time_stamp_t Stamp( void )
60 {
61 return RTMath::CreateTimeStamp();
62 }
63
64 static void Record( RTMath::time_stamp_t start,
65 unsigned int samples, unsigned int skip )
66 {
67 RTMath::time_stamp_t stop = Stamp();
68 profilingTime += (stop - start);
69 profilingSamples += (samples - skip);
70 }
71
72 static void Calibrate( void );
73
74 private:
75 static unsigned long long profilingSamples;
76 static unsigned long long profilingTime;
77 static double tsPerSecond;
78 static bool bEnabled;
79 };
80
81 }} // namespace LinuxSampler::gig
82
83 #endif // __LS_GIG_PROFILER_H__

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