164 lines
4.0 KiB
C++
164 lines
4.0 KiB
C++
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rubber Band Library
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An audio time-stretching and pitch-shifting library.
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Copyright 2007-2018 Particular Programs Ltd.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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Alternatively, if you have a valid commercial licence for the
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Rubber Band Library obtained by agreement with the copyright
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holders, you may redistribute and/or modify it under the terms
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described in that licence.
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If you wish to distribute code using the Rubber Band Library
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under terms other than those of the GNU General Public License,
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you must obtain a valid commercial licence before doing so.
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*/
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#ifndef _RUBBERBAND_SYSUTILS_H_
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#define _RUBBERBAND_SYSUTILS_H_
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#ifdef __MSVC__
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#if _MSC_VER < 1800
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#include "float_cast/float_cast.h"
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#endif
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#define R__ __restrict
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#endif
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#ifdef __clang__
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#define R__ __restrict__
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#else
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#ifdef __GNUC__
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#define R__ __restrict__
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#endif
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#endif
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#ifndef R__
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#define R__
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#endif
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#ifdef __MINGW32__
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#include <malloc.h>
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#else
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#ifndef __MSVC__
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#include <alloca.h>
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#endif
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#endif
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#ifdef __MSVC__
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#include <malloc.h>
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#include <process.h>
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#define alloca _alloca
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#define getpid _getpid
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#endif
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#if defined(__MSVC__) && _MSC_VER < 1700
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#define uint8_t unsigned __int8
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#define uint16_t unsigned __int16
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#define uint32_t unsigned __int32
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#elif defined(__MSVC__)
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#define ssize_t long
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#include <stdint.h>
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#else
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#include <stdint.h>
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#endif
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#include <math.h>
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namespace RubberBand {
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extern const char *system_get_platform_tag();
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extern bool system_is_multiprocessor();
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extern void system_specific_initialise();
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extern void system_specific_application_initialise();
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enum ProcessStatus { ProcessRunning, ProcessNotRunning, UnknownProcessStatus };
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extern ProcessStatus system_get_process_status(int pid);
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#ifdef _WIN32
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struct timeval { long tv_sec; long tv_usec; };
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void gettimeofday(struct timeval *p, void *tz);
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#endif
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#ifdef __MSVC__
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void usleep(unsigned long);
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#endif
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inline double mod(double x, double y) { return x - (y * floor(x / y)); }
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inline float modf(float x, float y) { return x - (y * float(floor(x / y))); }
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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inline double princarg(double a) { return mod(a + M_PI, -2.0 * M_PI) + M_PI; }
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inline float princargf(float a) { return modf(a + (float)M_PI, -2.f * (float)M_PI) + (float)M_PI; }
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} // end namespace
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// The following should be functions in the RubberBand namespace, really
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#ifdef _WIN32
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#define MLOCK(a,b) 1
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#define MUNLOCK(a,b) 1
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#define MUNLOCK_SAMPLEBLOCK(a) 1
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namespace RubberBand {
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extern void system_memorybarrier();
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}
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#define MBARRIER() RubberBand::system_memorybarrier()
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#define DLOPEN(a,b) LoadLibrary((a).toStdWString().c_str())
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#define DLSYM(a,b) GetProcAddress((HINSTANCE)(a),(b))
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#define DLCLOSE(a) FreeLibrary((HINSTANCE)(a))
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#define DLERROR() ""
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#else
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#include <sys/mman.h>
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#include <dlfcn.h>
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#include <stdio.h>
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#define MLOCK(a,b) ::mlock((char *)(a),(b))
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#define MUNLOCK(a,b) (::munlock((char *)(a),(b)) ? (::perror("munlock failed"), 0) : 0)
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#define MUNLOCK_SAMPLEBLOCK(a) do { if (!(a).empty()) { const float &b = *(a).begin(); MUNLOCK(&b, (a).capacity() * sizeof(float)); } } while(0);
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#ifdef __APPLE__
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#include <libkern/OSAtomic.h>
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#define MBARRIER() OSMemoryBarrier()
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#else
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#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
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#define MBARRIER() __sync_synchronize()
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#else
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namespace RubberBand {
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extern void system_memorybarrier();
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}
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#define MBARRIER() ::RubberBand::system_memorybarrier()
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#endif
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#endif
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#define DLOPEN(a,b) dlopen((a).toStdString().c_str(),(b))
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#define DLSYM(a,b) dlsym((a),(b))
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#define DLCLOSE(a) dlclose((a))
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#define DLERROR() dlerror()
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#endif
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#ifdef NO_THREADING
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#undef MBARRIER
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#define MBARRIER()
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#endif
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#endif
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