More Amiga V2/V3 sound updates from _Q_:

1. A Player_MOD class, basically acts as a simplified mixer that mixes at 60Hz intervals (or whatever interval you specify), this gives smooth music playback in player_v3a
2. Some changes to player_v3a as a result of #1, including reduced music volume
3. player_v2a, and the necessary additions to scummvm.cpp/scumm.h

svn-id: r10392

1 files changed, 66 insertions, 0 deletions

diff --git a/scumm/player_v2a.h b/scumm/player_v2a.h
new file mode 100644
index 0000000000..128899683b
--- /dev/null
+++ b/scumm/player_v2a.h
@@ -0,0 +1,66 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2003 The ScummVM project
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Header$
+ *
+ */
+
+#ifndef PLAYER_V2A_H
+#define PLAYER_V2A_H
+
+#include "common/scummsys.h"
+#include "common/system.h"
+#include "scumm/music.h"
+#include "scumm/player_mod.h"
+
+#define	V2A_MAXSLOTS 8
+
+class Scumm;
+class SoundMixer;
+
+class V2A_Sound;
+
+class Player_V2A : public MusicEngine {
+public:
+	Player_V2A(Scumm *scumm);
+	virtual ~Player_V2A();
+
+	virtual void setMasterVolume(int vol);
+	virtual void startSound(int nr);
+	virtual void stopSound(int nr);
+	virtual void stopAllSounds();
+	virtual int  getMusicTimer() const;
+	virtual int  getSoundStatus(int nr) const;
+
+private:
+	OSystem *_system;
+	Scumm *_scumm;
+	Player_MOD *_mod;
+
+	struct soundSlot
+	{
+		int id;
+		V2A_Sound *sound;
+	} _slot[V2A_MAXSLOTS];
+	int getSoundSlot (int id = 0) const;
+
+	static void update_proc(void *param);
+	void updateSound();
+};
+
+#endif