From 8e2d5ad56f5fe2faa3c3abd74e89607b7a4ad8e0 Mon Sep 17 00:00:00 2001
From: Chris Apers
Date: Tue, 25 May 2004 12:57:53 +0000
Subject: Default (NULL) CD player

svn-id: r13856
---
 backends/PalmOS/Src/cd_default.cpp | 102 +++++++++++++++++++++++++++++++++++++
 backends/PalmOS/Src/cd_default.h   |  48 +++++++++++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 backends/PalmOS/Src/cd_default.cpp
 create mode 100644 backends/PalmOS/Src/cd_default.h

(limited to 'backends')

diff --git a/backends/PalmOS/Src/cd_default.cpp b/backends/PalmOS/Src/cd_default.cpp
new file mode 100644
index 0000000000..f630850de3
--- /dev/null
+++ b/backends/PalmOS/Src/cd_default.cpp
@@ -0,0 +1,102 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2004 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.
+ *
+ * $Header$
+ *
+ */
+#include "stdafx.h"
+#include "common/system.h"
+#include "cd_default.h"
+
+DefaultCDPlayer::DefaultCDPlayer(OSystem *sys) {
+	_sys = sys;
+}
+
+bool DefaultCDPlayer::init() {
+	_isInitialized = true;
+	return _isInitialized;
+}
+
+void DefaultCDPlayer::release() {
+	// self delete
+	delete this;
+}
+
+bool DefaultCDPlayer::poll() {
+	return (_defLoops != 0 && _sys->get_msecs() < _defTrackEndFrame);
+}
+
+void DefaultCDPlayer::update() {
+
+	// stop replay upon request of stop_cdrom()
+	if (_defStopTime != 0 && _sys->get_msecs() >= _defStopTime) {
+		_defLoops = 0;
+		_defStopTime = 0;
+		_defTrackEndFrame = 0;
+		return;
+	}
+
+	// not fully played
+	if (_sys->get_msecs() < _defTrackEndFrame)
+		return;
+		
+	if (_defLoops == 0)
+		return;
+
+	// loop again ?
+	if (_defLoops > 0)
+		_defLoops--;
+
+	// loop if needed
+	if (_defLoops != 0) {
+		_defTrackEndFrame = _sys->get_msecs() + _defTrackLength;
+	}
+}
+
+void DefaultCDPlayer::stop() {	/* Stop CD Audio in 1/10th of a second */
+	_defStopTime = _sys->get_msecs() + 100;
+	_defLoops = 0;
+	return;
+}
+
+void DefaultCDPlayer::play(int track, int num_loops, int start_frame, int duration) {
+	if (!num_loops && !start_frame)
+		return;
+		
+	UInt32 fullLength;
+	
+	_defLoops = num_loops;
+	start_frame = TO_MSECS(start_frame);
+	duration = TO_MSECS(duration);
+
+	// frame in milli-seconds 
+	_defStopTime = 0;
+	fullLength  = start_frame + gVars->CD.defaultTrackLength * 1000;
+
+	if (duration > 0) {
+		_defTrackLength = duration;
+	} else if (start_frame > 0) {
+		_defTrackLength = fullLength;
+		_defTrackLength -= start_frame;
+	} else {
+		_defTrackLength = fullLength;
+	}
+				
+	// try to play the track
+	_defTrackEndFrame = _sys->get_msecs() + _defTrackLength;
+}
diff --git a/backends/PalmOS/Src/cd_default.h b/backends/PalmOS/Src/cd_default.h
new file mode 100644
index 0000000000..f6685de3f7
--- /dev/null
+++ b/backends/PalmOS/Src/cd_default.h
@@ -0,0 +1,48 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2004 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 CD_DEFAULT_H
+ #define CD_DEFAULT_H
+ 
+ #include "cdaudio.h"
+ 
+ class DefaultCDPlayer : public CDAudio {
+ public:
+ 	DefaultCDPlayer(OSystem *sys);
+
+ 	bool init();
+ 	void release();
+ 	
+ 	bool poll();
+ 	void update();
+ 	void play(int track, int num_loops, int start_frame, int duration);
+ 	void stop();
+ 	
+ private:
+ 	OSystem *_sys;
+ 	
+ 	// cdrom
+	UInt16 _defLoops;
+	UInt32 _defStopTime, _defTrackEndFrame, _defTrackLength;
+ };
+ 
+ #endif
\ No newline at end of file
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