add (copy of 2.0-ongoing) rubberband to 3.0

git-svn-id: svn://localhost/ardour2/branches/3.0@3713 d708f5d6-7413-0410-9779-e7cbd77b26cf
2025-12-27 17:07:40 +01:00 · 2008-09-10 21:35:32 +00:00 · 2008-09-10 21:35:32 +00:00 · 7da75446b8
commit 7da75446b8
parent c86210a9d5
65 changed files with 17770 additions and 0 deletions
--- a/libs/rubberband/src/sysutils.cpp
+++ b/libs/rubberband/src/sysutils.cpp
@ -0,0 +1,158 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rubber Band
+    An audio time-stretching and pitch-shifting library.
+    Copyright 2007-2008 Chris Cannam.
+    
+    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.
+*/
+
+#include "sysutils.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#else /* !_WIN32 */
+#ifdef __APPLE__
+#include <sys/sysctl.h>
+#else /* !__APPLE__, !_WIN32 */
+#include <cstdio>
+#include <cstring>
+#endif /* !__APPLE__, !_WIN32 */
+#endif /* !_WIN32 */
+
+#include <cstdlib>
+#include <iostream>
+
+namespace RubberBand {
+
+bool
+system_is_multiprocessor()
+{
+    static bool tested = false, mp = false;
+
+    if (tested) return mp;
+    int count = 0;
+
+#ifdef _WIN32
+
+    SYSTEM_INFO sysinfo;
+    GetSystemInfo(&sysinfo);
+    count = sysinfo.dwNumberOfProcessors;
+
+#else /* !_WIN32 */
+#ifdef __APPLE__
+    
+    size_t sz = sizeof(count);
+    if (sysctlbyname("hw.ncpu", &count, &sz, NULL, 0)) {
+        mp = false;
+    } else {
+        mp = (count > 1);
+    }
+
+#else /* !__APPLE__, !_WIN32 */
+    
+    //...
+
+    FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
+    if (!cpuinfo) return false;
+
+    char buf[256];
+    while (!feof(cpuinfo)) {
+        fgets(buf, 256, cpuinfo);
+        if (!strncmp(buf, "processor", 9)) {
+            ++count;
+        }
+        if (count > 1) break;
+    }
+
+    fclose(cpuinfo);
+
+#endif /* !__APPLE__, !_WIN32 */
+#endif /* !_WIN32 */
+
+    mp = (count > 1);
+    tested = true;
+    return mp;
+}
+
+#ifdef _WIN32
+
+int gettimeofday(struct timeval *tv, void *tz)
+{
+    union { 
+	long long ns100;  
+	FILETIME ft; 
+    } now; 
+    
+    ::GetSystemTimeAsFileTime(&now.ft); 
+    tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL); 
+    tv->tv_sec = (long)((now.ns100 - 116444736000000000LL) / 10000000LL); 
+    return 0;
+}
+
+void usleep(unsigned long usec)
+{
+    ::Sleep(usec == 0 ? 0 : usec < 1000 ? 1 : usec / 1000);
+}
+
+#endif
+
+
+float *allocFloat(float *ptr, int count)
+{
+    if (ptr) free((void *)ptr);
+    void *allocated;
+#ifndef _WIN32
+#ifndef __APPLE__
+    if (!posix_memalign(&allocated, 16, count * sizeof(float)))
+#endif
+#endif
+        allocated = malloc(count * sizeof(float));
+    for (int i = 0; i < count; ++i) ((float *)allocated)[i] = 0.f;
+    return (float *)allocated;
+}
+
+float *allocFloat(int count)
+{
+    return allocFloat(0, count);
+}
+
+void freeFloat(float *ptr)
+{
+    if (ptr) free(ptr);
+}
+      
+double *allocDouble(double *ptr, int count)
+{
+    if (ptr) free((void *)ptr);
+    void *allocated;
+#ifndef _WIN32
+#ifndef __APPLE__
+    if (!posix_memalign(&allocated, 16, count * sizeof(double)))
+#endif
+#endif
+        allocated = malloc(count * sizeof(double));
+    for (int i = 0; i < count; ++i) ((double *)allocated)[i] = 0.f;
+    return (double *)allocated;
+}
+
+double *allocDouble(int count)
+{
+    return allocDouble(0, count);
+}
+
+void freeDouble(double *ptr)
+{
+    if (ptr) free(ptr);
+}
+ 
+
+}
+
+
+