From 224d4e5098a19c957966cebb10b605e64bbe4c12 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sun, 8 Apr 2007 17:32:25 +0000
Subject: Jack MIDI API compatibility hacks.

git-svn-id: http://svn.drobilla.net/lad/slv2@420 a436a847-0d15-0410-975c-d299462d15a1
---
 acinclude.m4        | 15 +++++++++++++++
 configure.ac        |  4 ++++
 hosts/Makefile.am   |  5 +++++
 hosts/jack_compat.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 acinclude.m4
 create mode 100644 hosts/jack_compat.c

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..22592fe
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,15 @@
+# Copyright (C) 2007 Nedko Arnaudov <nedko@arnaudov.name>
+# This file is distributed under the same terms as the Autoconf macro files.
+ 	
+AC_DEFUN([AC_JACK_MIDI_NFRAMES_CHECK], [
+AC_MSG_CHECKING([whether JACK MIDI functions need nframes parameter])
+AC_LANG_PUSH(C)
+AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[
+#include <jack/jack.h>
+#include <jack/midiport.h>
+]], [[
+jack_midi_event_get(0, 0, 0, 0);
+]]), [jackmidi_nframes='yes'], [jackmidi_nframes='no'])
+AC_MSG_RESULT([$jackmidi_nframes])
+AC_LANG_POP()
+])
diff --git a/configure.ac b/configure.ac
index bbc7590..f2d7050 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,6 +56,10 @@ AC_ARG_ENABLE(jack,
 if test "$build_jack" = "yes"; then
 	PKG_CHECK_MODULES(JACK, jack >= 0.102.29, build_jack="yes", build_jack="no")
 	AC_DEFINE(HAVE_JACK, 1, [Has JACK])
+	AC_JACK_MIDI_NFRAMES_CHECK()  	   	
+	if test "$jackmidi_nframes" == "yes"; then 	  	
+		AC_DEFINE([JACK_MIDI_NEEDS_NFRAMES], 1, [Defined if we JACK MIDI functions need nframes parameter.]) 	  	
+	fi
 else
 	AC_MSG_WARN("Sufficiently recent JACK not found, JACK clients will not be built.")
 fi
diff --git a/hosts/Makefile.am b/hosts/Makefile.am
index 25c49a7..b07e74f 100644
--- a/hosts/Makefile.am
+++ b/hosts/Makefile.am
@@ -14,7 +14,12 @@ lv2_jack_host_LDADD        = ../src/libslv2.la @JACK_LIBS@ @RASQAL_LIBS@
 lv2_simple_jack_host_LDADD = ../src/libslv2.la @JACK_LIBS@ @RASQAL_LIBS@
 
 lv2_jack_host_SOURCES = \
+	jack_compat.c \
 	lv2_jack_host.c
 
+lv2_simple_jack_host_SOURCES = \
+	jack_compat.c \
+	lv2_simple_jack_host.c
+
 endif
 
diff --git a/hosts/jack_compat.c b/hosts/jack_compat.c
new file mode 100644
index 0000000..65c2ca7
--- /dev/null
+++ b/hosts/jack_compat.c
@@ -0,0 +1,45 @@
+/* JACK MIDI API compatibility hacks.
+ * Copyright (C) 2007 Nedko Arnaudov <nedko@arnaudov.name>
+ *
+ * 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; version 2 of the License
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#if defined(HAVE_OLD_JACK_MIDI)
+#define jack_midi_get_event_count(port_buf, nframes) jack_midi_port_get_info(port_buf, nframes)->event_count
+#endif
+
+#if defined(JACK_MIDI_NEEDS_NFRAMES)
+
+inline jack_nframes_t
+jack_midi_get_event_count_compat(
+  void * port_buffer)
+{
+  return jack_midi_get_event_count(port_buffer, 0);
+}
+
+inline int
+jack_midi_event_get_compat(
+  jack_midi_event_t * event,
+  void * port_buffer,
+  jack_nframes_t event_index)
+{
+  return jack_midi_event_get(event, port_buffer, event_index, 0);
+}
+
+#define jack_midi_get_event_count jack_midi_get_event_count_compat
+#define jack_midi_event_get jack_midi_event_get_compat
+
+#endif  /* #if defined(HAVE_JACK_MIDI_WITH_NFRAMES) */
-- 
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