GLK: FROTZ: Implement os_beep method

I instantiate a PCSpeaker instance in the main engine just for beeps,
because I don't know any simpler way. But hey, it works.

1 files changed, 50 insertions, 0 deletions

diff --git a/engines/glk/pc_speaker.h b/engines/glk/pc_speaker.h
new file mode 100644
index 0000000000..8c3d1adea2
--- /dev/null
+++ b/engines/glk/pc_speaker.h
@@ -0,0 +1,50 @@
+/* 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.
+ *
+ */
+
+#ifndef GLK_PC_SPEAKER_H
+#define GLK_PC_SPEAKER_H
+
+#include "audio/mixer.h"
+
+namespace Audio {
+class PCSpeaker;
+}
+
+namespace Glk {
+
+class PCSpeaker {
+private:
+	Audio::Mixer *_mixer;
+	Audio::PCSpeaker *_stream;
+	Audio::SoundHandle _handle;
+public:
+	PCSpeaker(Audio::Mixer *mixer);
+	~PCSpeaker();
+
+	void speakerOn(int16 frequency, int32 length = -1);
+	void speakerOff();
+	void onUpdate(uint32 millis);
+};
+
+} // End of namespace Glk
+
+#endif