116 lines
5.1 KiB
C
116 lines
5.1 KiB
C
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//*@@@+++@@@@******************************************************************
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//
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// Copyright © Microsoft Corp.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// • Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// • Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//*@@@---@@@@******************************************************************
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#ifndef __PERFTIMER_H_
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#define __PERFTIMER_H_
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//***************************************************************************
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// Description
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//
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// Performance timer API used to measure codec performance. The underlying
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// implementation of this API may vary - from ANSI-C implementation via clock,
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// Win32 implementation via QueryPerformanceCounter or GetProcessTimes. At
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// present we only support one implementation of this PerfTimer "object".
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// You choose the implementation by choosing which one of the many files
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// to compile and link with your application.
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//***************************************************************************
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#ifdef DISABLE_PERF_MEASUREMENT
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#define PERFTIMER_ONLY(code)
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#define PERFTIMER_NEW(fPerf, ppPerfTimer)
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#define PERFTIMER_DELETE(fPerf, ppPerfTimer)
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#define PERFTIMER_START(fPerf, pPerfTimer)
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#define PERFTIMER_STOP(fPerf, pPerfTimer)
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#define PERFTIMER_GETRESULTS(fPerf, pPerfTimer, pResults)
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#define PERFTIMER_COPYSTARTTIME(fPerf, pDst, pSrc)
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#define PERFTIMER_REPORT(fPerf, pCodec)
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#else // DISABLE_PERF_MEASUREMENT
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#define PERFTIMER_ONLY(code) code
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#define PERFTIMER_NEW(fPerf, ppPerfTimer) if (fPerf) {Bool b = b = PerfTimerNew(ppPerfTimer); assert(b);};
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#define PERFTIMER_DELETE(fPerf, pPerfTimer) if (fPerf) {PerfTimerDelete(pPerfTimer);};
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#define PERFTIMER_START(fPerf, pPerfTimer) if (fPerf) {Bool b = b = PerfTimerStart(pPerfTimer); assert(b);};
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#define PERFTIMER_STOP(fPerf, pPerfTimer) if (fPerf) {Bool b = b = PerfTimerStop(pPerfTimer); assert(b);};
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#define PERFTIMER_GETRESULTS(fPerf, pPerfTimer, pResults) \
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if (fPerf) {Bool b = b = PerfTimerGetResults((pPerfTimer), (pResults)); assert(b);};
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#define PERFTIMER_COPYSTARTTIME(fPerf, pDst, pSrc) \
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if (fPerf) {Bool b = b = PerfTimerCopyStartTime((pDst), (pSrc)); assert(b);};
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#define PERFTIMER_REPORT(fPerf, pCodec) \
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if (fPerf) {OutputPerfTimerReport(pCodec);};
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#endif // DISABLE_PERF_MEASUREMENT
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//***************************************************************************
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// Data Types
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//***************************************************************************
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typedef U64 PERFTIMERTIME;
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typedef struct PERFTIMERRESULTS
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{
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PERFTIMERTIME iElapsedTime; // In nanoseconds or CPU cycles
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PERFTIMERTIME iTicksPerSecond; // Number of ticks per second (clock frequency)
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PERFTIMERTIME iZeroTimeIntervals; // Number of zero-time intervals.
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// Presence of zero-time intervals may indicate insufficient clock precision
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} PERFTIMERRESULTS;
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#define NANOSECONDS_PER_SECOND 1000000000
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//***************************************************************************
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// Data Declarations
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//***************************************************************************
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typedef enum
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{
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CS_UNINIT,
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CS_RUNNING,
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CS_STOPPED,
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} CLOCKSTATE;
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typedef struct PERFTIMERSTATE
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{
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CLOCKSTATE eState;
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PERFTIMERTIME iElapsedTime;
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PERFTIMERTIME iPrevStartTime;
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PERFTIMERTIME iZeroTimeIntervals;
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} PERFTIMERSTATE;
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//***************************************************************************
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// Functions and Macros
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//***************************************************************************
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Bool PerfTimerNew(PERFTIMERSTATE **ppNewPerfTimer);
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void PerfTimerDelete(PERFTIMERSTATE *pThisPerfTimer);
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Bool PerfTimerStart(PERFTIMERSTATE *pThisPerfTimer);
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Bool PerfTimerStop(PERFTIMERSTATE *pThisPerfTimer);
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Bool PerfTimerGetResults(PERFTIMERSTATE *pThisPerfTimer,
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PERFTIMERRESULTS *pPerfTimerResults);
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Bool PerfTimerCopyStartTime(PERFTIMERSTATE *pDestPerfTimer,
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PERFTIMERSTATE *pSrcPerfTimer);
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#endif // __PERFTIMER_H_
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