GUI/LAUNCHER: This should fix the regression concerning pc speaker / pcjr support caused by patch #1956501

svn-id: r50145

1 files changed, 56 insertions, 0 deletions

diff --git a/sound/null.h b/sound/null.h
new file mode 100644
index 0000000000..f8d0a91e2d
--- /dev/null
+++ b/sound/null.h
@@ -0,0 +1,56 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef SOUND_NULL_H
+#define SOUND_NULL_H
+
+#include "sound/musicplugin.h"
+#include "sound/mpu401.h"
+#include "common/translation.h"
+
+/* NULL driver */
+class MidiDriver_NULL : public MidiDriver_MPU401 {
+public:
+	int open() { return 0; }
+	void send(uint32 b) { }
+};
+
+
+// Plugin interface
+
+class NullMusicPlugin : public MusicPluginObject {
+public:
+	virtual const char *getName() const {
+		return _s("No music");
+	}
+
+	virtual const char *getId() const {
+		return "null";
+	}
+
+	virtual MusicDevices getDevices() const;
+	Common::Error createInstance(MidiDriver **mididriver, MidiDriver::DeviceHandle = 0) const;
+};
+
+#endif
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