From 25ec63968c0e792217a015c402ac52ae59a85e3b Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 19 Aug 2016 11:12:05 -0400
Subject: [PATCH] add code to disable AppNap on OS X/MacOS

Should build on versions before 10.9 and run everywhere due to respondsToSelector check.
---
 gtk2_ardour/bundle_env_cocoa.cc |  5 +++++
 gtk2_ardour/cocoacarbon.mm      | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/gtk2_ardour/bundle_env_cocoa.cc b/gtk2_ardour/bundle_env_cocoa.cc
index d63057408e..12d7aae2d6 100644
--- a/gtk2_ardour/bundle_env_cocoa.cc
+++ b/gtk2_ardour/bundle_env_cocoa.cc
@@ -50,6 +50,7 @@ using namespace ARDOUR;
 using namespace std;
 
 extern void set_language_preference (); // cocoacarbon.mm
+extern void no_app_nap (); // cocoacarbon.mm
 
 static void
 setup_logging(void)
@@ -81,6 +82,10 @@ setup_logging(void)
 void
 fixup_bundle_environment (int argc, char* argv[], string & localedir)
 {
+	/* do this even for non-bundle runtimes */
+
+	no_app_nap ();
+
 	if (!g_getenv ("ARDOUR_BUNDLED")) {
 		return;
 	}
diff --git a/gtk2_ardour/cocoacarbon.mm b/gtk2_ardour/cocoacarbon.mm
index 592a55d09d..2376756b03 100644
--- a/gtk2_ardour/cocoacarbon.mm
+++ b/gtk2_ardour/cocoacarbon.mm
@@ -106,3 +106,14 @@ set_language_preference ()
         setenv ("LANG", [nslocale UTF8String], 0);
 	CFRelease (cflocale);
 }
+
+	/* Prevent "App Nap" */
+
+void
+no_app_nap ()
+{
+	if ( [ [ NSProcessInfo processInfo ] respondsToSelector:@selector(beginActivityWithOptions:reason:) ] ) {
+		cout << "Disabling MacOS AppNap\n";
+		[ [ NSProcessInfo processInfo] beginActivityWithOptions:NSActivityLatencyCritical reason:@"realtime audio" ];
+	}
+}
-- 
2.30.2