view system/System.h @ 202:91fdc752e540

* Update copyright notes as appropriate.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam and QMUL.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _SYSTEM_H_
#define _SYSTEM_H_

#ifdef _WIN32

#include <windows.h>
#include <malloc.h>
#include <process.h>

#define MLOCK(a,b)   1
#define MUNLOCK(a,b) 1
#define MUNLOCK_SAMPLEBLOCK(a) 1

#define DLOPEN(a,b)  LoadLibrary((a).toStdWString().c_str())
#define DLSYM(a,b)   GetProcAddress((HINSTANCE)(a),(b))
#define DLCLOSE(a)   FreeLibrary((HINSTANCE)(a))
#define DLERROR()    ""

#define PLUGIN_GLOB  "*.dll"

// The default Vamp plugin path is obtained from a function in the Vamp SDK
// (Vamp::PluginHostAdapter::getPluginPath).

#define DEFAULT_LADSPA_PATH "%ProgramFiles%\\LADSPA Plugins"
#define DEFAULT_DSSI_PATH   "%ProgramFiles%\\DSSI Plugins"

#define getpid _getpid

extern "C" {
void usleep(unsigned long usec);
void gettimeofday(struct timeval *p, void *tz);
}

#else

#include <sys/mman.h>
#include <dlfcn.h>

#define MLOCK(a,b)   ::mlock((a),(b))
#define MUNLOCK(a,b) (::munlock((a),(b)) ? (::perror("munlock failed"), 0) : 0)
#define MUNLOCK_SAMPLEBLOCK(a) do { if (!(a).empty()) { const float &b = *(a).begin(); MUNLOCK(&b, (a).capacity() * sizeof(float)); } } while(0);

#define DLOPEN(a,b)  dlopen((a).toStdString().c_str(),(b))
#define DLSYM(a,b)   dlsym((a),(b))
#define DLCLOSE(a)   dlclose((a))
#define DLERROR()    dlerror()

#ifdef __APPLE__

#define PLUGIN_GLOB  "*.dylib"

#define DEFAULT_LADSPA_PATH "$HOME/Library/Audio/Plug-Ins/LADSPA:/Library/Audio/Plug-Ins/LADSPA"
#define DEFAULT_DSSI_PATH   "$HOME/Library/Audio/Plug-Ins/DSSI:/Library/Audio/Plug-Ins/DSSI"

#else 

#define PLUGIN_GLOB  "*.so"

#define DEFAULT_LADSPA_PATH "$HOME/ladspa:$HOME/.ladspa:/usr/local/lib/ladspa:/usr/lib/ladspa"
#define DEFAULT_DSSI_PATH "$HOME/dssi:$HOME/.dssi:/usr/local/lib/dssi:/usr/lib/dssi"

#endif /* __APPLE__ */

#endif /* ! _WIN32 */

enum ProcessStatus { ProcessRunning, ProcessNotRunning, UnknownProcessStatus };
extern ProcessStatus GetProcessStatus(int pid);

// Return a vague approximation to the number of free megabytes of real memory.
// Return -1 if unknown.
extern void GetRealMemoryMBAvailable(int &available, int &total);

// Return a vague approximation to the number of free megabytes of disc space
// on the partition containing the given path.  Return -1 if unknown.
extern int GetDiscSpaceMBAvailable(const char *path);

#include <cmath>

extern double mod(double x, double y);
extern float modf(float x, float y);

extern double princarg(double a);
extern float princargf(float a);

#endif /* ! _SYSTEM_H_ */