From 9f2358612a934de87ac9787effba11dd8b2b925b Mon Sep 17 00:00:00 2001
From: Alejandro Marzini
Date: Wed, 9 Jun 2010 05:39:27 +0000
Subject: Created DefaultAudioCDManager and SdlAudioCDManager

svn-id: r49532
---
 backends/audiocd/default/default-audiocd.cpp | 124 +++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 backends/audiocd/default/default-audiocd.cpp

(limited to 'backends/audiocd/default/default-audiocd.cpp')

diff --git a/backends/audiocd/default/default-audiocd.cpp b/backends/audiocd/default/default-audiocd.cpp
new file mode 100644
index 0000000000..ebe5553611
--- /dev/null
+++ b/backends/audiocd/default/default-audiocd.cpp
@@ -0,0 +1,124 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/audiocd/default/default-audiocd.h"
+#include "sound/audiostream.h"
+#include "common/util.h"
+#include "common/system.h"
+
+DefaultAudioCDManager::DefaultAudioCDManager() {
+	_cd.playing = false;
+	_cd.track = 0;
+	_cd.start = 0;
+	_cd.duration = 0;
+	_cd.numLoops = 0;
+	_mixer = g_system->getMixer();
+	_emulating = false;
+	assert(_mixer);
+}
+
+void DefaultAudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool only_emulate) {
+	if (numLoops != 0 || startFrame != 0) {
+		_cd.track = track;
+		_cd.numLoops = numLoops;
+		_cd.start = startFrame;
+		_cd.duration = duration;
+
+		// Try to load the track from a compressed data file, and if found, use
+		// that. If not found, attempt to start regular Audio CD playback of
+		// the requested track.
+		char trackName[2][16];
+		sprintf(trackName[0], "track%d", track);
+		sprintf(trackName[1], "track%02d", track);
+		Audio::SeekableAudioStream *stream = 0;
+
+		for (int i = 0; !stream && i < 2; ++i)
+			stream = Audio::SeekableAudioStream::openStreamFile(trackName[i]);
+
+		// Stop any currently playing emulated track
+		_mixer->stopHandle(_handle);
+
+		if (stream != 0) {
+			Audio::Timestamp start = Audio::Timestamp(0, startFrame, 75);
+			Audio::Timestamp end = duration ? Audio::Timestamp(0, startFrame + duration, 75) : stream->getLength();
+
+			/*
+			FIXME: Seems numLoops == 0 and numLoops == 1 both indicate a single repetition,
+			while all other positive numbers indicate precisely the number of desired
+			repetitions. Finally, -1 means infinitely many
+			*/
+			_emulating = true;
+			_mixer->playStream(Audio::Mixer::kMusicSoundType, &_handle,
+			                        Audio::makeLoopingAudioStream(stream, start, end, (numLoops < 1) ? numLoops + 1 : numLoops));
+		} else {
+			_emulating = false;
+			if (!only_emulate)
+				playCD(track, numLoops, startFrame, duration);
+		}
+	}
+}
+
+void DefaultAudioCDManager::stop() {
+	if (_emulating) {
+		// Audio CD emulation
+		_mixer->stopHandle(_handle);
+		_emulating = false;
+	} else {
+		// Real Audio CD
+		stopCD();
+	}
+}
+
+bool DefaultAudioCDManager::isPlaying() const {
+	if (_emulating) {
+		// Audio CD emulation
+		return _mixer->isSoundHandleActive(_handle);
+	} else {
+		// Real Audio CD
+		return pollCD();
+	}
+}
+
+void DefaultAudioCDManager::update() {
+	if (_emulating) {
+		// Check whether the audio track stopped playback
+		if (!_mixer->isSoundHandleActive(_handle)) {
+			// FIXME: We do not update the numLoops parameter here (and in fact,
+			// currently can't do that). Luckily, only one engine ever checks
+			// this part of the AudioCD status, namely the SCUMM engine; and it
+			// only checks whether the track is currently set to infinite looping
+			// or not.
+			_emulating = false;
+		}
+	} else {
+		updateCD();
+	}
+}
+
+DefaultAudioCDManager::Status DefaultAudioCDManager::getStatus() const {
+	Status info = _cd;
+	info.playing = isPlaying();
+	return info;
+}
-- 
cgit v1.2.3


From f9c3a4547cbf1b1942402d618fa403a7fb1cb656 Mon Sep 17 00:00:00 2001
From: Alejandro Marzini
Date: Fri, 2 Jul 2010 06:44:42 +0000
Subject: Cleanup and documentation.

svn-id: r50589
---
 backends/audiocd/default/default-audiocd.cpp | 1 -
 1 file changed, 1 deletion(-)

(limited to 'backends/audiocd/default/default-audiocd.cpp')

diff --git a/backends/audiocd/default/default-audiocd.cpp b/backends/audiocd/default/default-audiocd.cpp
index ebe5553611..0e7dc66ba1 100644
--- a/backends/audiocd/default/default-audiocd.cpp
+++ b/backends/audiocd/default/default-audiocd.cpp
@@ -25,7 +25,6 @@
 
 #include "backends/audiocd/default/default-audiocd.h"
 #include "sound/audiostream.h"
-#include "common/util.h"
 #include "common/system.h"
 
 DefaultAudioCDManager::DefaultAudioCDManager() {
-- 
cgit v1.2.3