From 189c0787586602185fea7dcbc3ef37665b75ba45 Mon Sep 17 00:00:00 2001
From: jdl <x75@users.sourceforge.net>
Date: Tue, 6 Aug 2002 12:13:57 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r75, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/OSCx/; revision=76
---
 libOSC/OSC-timetag.h | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 libOSC/OSC-timetag.h

(limited to 'libOSC/OSC-timetag.h')

diff --git a/libOSC/OSC-timetag.h b/libOSC/OSC-timetag.h
new file mode 100644
index 0000000..3ce693a
--- /dev/null
+++ b/libOSC/OSC-timetag.h
@@ -0,0 +1,93 @@
+/*
+Copyright (c) 1998.  The Regents of the University of California (Regents).
+All Rights Reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for educational, research, and not-for-profit purposes, without
+fee and without a signed licensing agreement, is hereby granted, provided that
+the above copyright notice, this paragraph and the following two paragraphs
+appear in all copies, modifications, and distributions.  Contact The Office of
+Technology Licensing, UC Berkeley, 2150 Shattuck Avenue, Suite 510, Berkeley,
+CA 94720-1620, (510) 643-7201, for commercial licensing opportunities.
+
+Written by Matt Wright, The Center for New Music and Audio Technologies,
+University of California, Berkeley.
+
+     IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+     SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+     ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+     REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+     REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+     FOR A PARTICULAR PURPOSE. THE SOFTWARE AND ACCOMPANYING
+     DOCUMENTATION, IF ANY, PROVIDED HEREUNDER IS PROVIDED "AS IS".
+     REGENTS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+     ENHANCEMENTS, OR MODIFICATIONS.
+
+The OpenSound Control WWW page is 
+    http://www.cnmat.berkeley.edu/OpenSoundControl
+*/
+
+/*
+ OSC_timeTag.h: library for manipulating OSC time tags
+ Matt Wright, 5/29/97
+
+ Time tags in OSC have the same format as in NTP: 64 bit fixed point, with the
+ top 32 bits giving number of seconds sinve midnight 1/1/1900 and the bottom
+ 32 bits giving fractional parts of a second.  We represent this by a 64-bit
+ unsigned long if possible, or else a struct. 
+
+ NB: On many architectures with 64-bit ints, it's illegal (like maybe a bus error)
+ to dereference a pointer to a 64-bit int that's not 64-bit aligned.  
+*/
+
+#ifndef OSC_TIMETAG
+#define OSC_TIMETAG
+
+#ifdef __sgi
+    #define HAS8BYTEINT
+    /* You may have to change this typedef if there's some other
+       way to specify 64 bit ints on your system */
+    typedef long long int64;
+    typedef unsigned long long uint64;
+    typedef unsigned long uint32;
+#else
+    /* You may have to redefine this typedef if ints on your system 
+       aren't 32 bits. */
+    typedef unsigned int uint32;
+#endif
+
+
+#ifdef HAS8BYTEINT
+    typedef uint64 OSCTimeTag;
+#else
+    typedef struct {
+	uint32 seconds;
+	uint32 fraction;
+    } OSCTimeTag;
+#endif
+
+
+
+/* Return a time tag representing the current time (as of when this
+   procedure is called). */
+OSCTimeTag OSCTT_CurrentTime(void);
+
+/* Return the time tag 0x0000000000000001, indicating to the receiving device
+   that it should process the message immediately. */
+OSCTimeTag OSCTT_Immediately(void);
+
+/* Return the time tag 0xffffffffffffffff, a time so far in the future that
+   it's effectively infinity. */
+OSCTimeTag OSCTT_BiggestPossibleTimeTag(void);
+
+/* Given a time tag and a number of seconds to add to the time tag, return
+   the new time tag */
+OSCTimeTag OSCTT_PlusSeconds(OSCTimeTag original, float secondsOffset);
+
+/* Compare two time tags.  Return negative if first is < second, 0 if
+   they're equal, and positive if first > second. */
+int OSCTT_Compare(OSCTimeTag left, OSCTimeTag right);
+
+#endif /*  OSC_TIMETAG */
-- 
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