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livetrax/libs/backends/wavesaudio/wavesapi/miscutils/UMicroseconds.cpp
Paul Davis 1de00ab6bb new audio engine backend for native CoreAudio audio I/O, and PortMIDI for MIDI.
Code builds, runs and functions. Full code review still pending, and some possibly changes to organization of code within the backend is possible
2014-02-24 14:49:13 -05:00

88 lines
2.3 KiB
C++

/*
Copyright (C) 2013 Waves Audio Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef _WINDOWS
#include "IncludeWindows.h"
#endif
#if defined(__linux__) || defined(__MACOS__)
#include <sys/time.h>
#endif
#include "UMicroseconds.h"
namespace wvNS {
UMicroseconds& UMicroseconds::ReadTime()
{
#ifdef _WINDOWS
LARGE_INTEGER Frequency, Count ;
QueryPerformanceFrequency(&Frequency) ;
QueryPerformanceCounter(&Count);
theTime = uint64_t((Count.QuadPart * 1000000.0 / Frequency.QuadPart));
#endif
#if defined(__linux__) || defined(__MACOS__)
// Mac code replaced by posix calls, to reduce Carbon dependency.
timeval buf;
gettimeofday(&buf,NULL);
// micro sec
theTime = uint64_t(buf.tv_sec) * 1000*1000 + buf.tv_usec;
#endif
return *this;
}
/*
Removed in favor of the posix implementation.
#ifdef __MACOS__
uint32_t UMicroseconds::hi() {return reinterpret_cast<UnsignedWide*>(&theTime)->hi;}
uint32_t UMicroseconds::lo() {return reinterpret_cast<UnsignedWide*>(&theTime)->lo;}
#endif
*/
void UMicrosecondsAccumulator::Start()
{
m_start_time.ReadTime();
}
void UMicrosecondsAccumulator::Stop()
{
UMicroseconds stop_time;
m_accumulator += stop_time.GetNativeTime() - m_start_time.GetNativeTime();
}
void UMicrosecondsAccumulator::Clear()
{
m_start_time = 0;
m_accumulator = 0;
}
UMicroseconds UMicrosecondsAccumulator::GetAccumulatedTime() const
{
return m_accumulator;
}
UMicrosecondsAccumulator& UMicrosecondsAccumulator::operator+=(const UMicrosecondsAccumulator& inaccum_to_add)
{
m_accumulator += inaccum_to_add.GetAccumulatedTime();
return *this;
}
} // namespace wvNS {