added sound engine files

cockatrice/src/soundengine.cpp

+#include "soundengine.h"
+#include "settingscache.h"
+#include <QAudioOutput>
+#include <QAudioFormat>
+#include <QFile>
+#include <QBuffer>
+
+SoundEngine::SoundEngine(QObject *parent)
+	: QObject(parent)
+{
+	inputBuffer = new QBuffer;
+	QAudioFormat format;
+	format.setFrequency(44100);
+	format.setChannels(1);
+	format.setSampleSize(16);
+	format.setCodec("audio/pcm");
+	format.setByteOrder(QAudioFormat::LittleEndian);
+	format.setSampleType(QAudioFormat::SignedInt);
+	audio = new QAudioOutput(format, this);
+	
+	connect(settingsCache, SIGNAL(soundPathChanged()), this, SLOT(cacheData()));
+	cacheData();
+}
+
+void SoundEngine::cacheData()
+{
+	static const QStringList fileNames = QStringList()
+		<< "notification" << "draw" << "playcard" << "shuffle" << "tap" << "untap";
+	for (int i = 0; i < fileNames.size(); ++i) {
+		QFile file(settingsCache->getSoundPath() + "/" + fileNames[i] + ".raw");
+		file.open(QIODevice::ReadOnly);
+		audioData.insert(fileNames[i], file.readAll());
+		file.close();
+	}
+}
+
+void SoundEngine::playSound(const QString &fileName)
+{
+	if (!settingsCache->getSoundEnabled())
+		return;
+	
+	audio->stop();
+	inputBuffer->close();
+	inputBuffer->setData(audioData[fileName]);
+	inputBuffer->open(QIODevice::ReadOnly);
+	audio->start(inputBuffer);
+}
+
+void SoundEngine::notification()
+{
+	playSound("notification");
+}
+
+void SoundEngine::draw()
+{
+	playSound("draw");
+}
+
+void SoundEngine::playCard()
+{
+	playSound("playcard");
+}
+
+void SoundEngine::shuffle()
+{
+	playSound("shuffle");
+}
+
+void SoundEngine::tap()
+{
+	playSound("tap");
+}
+
+void SoundEngine::untap()
+{
+	playSound("untap");
+}

cockatrice/src/soundengine.h

+#ifndef SOUNDENGINE_H
+#define SOUNDENGINE_H
+
+#include <QObject>
+#include <QMap>
+
+class QAudioOutput;
+class QBuffer;
+
+class SoundEngine : public QObject {
+	Q_OBJECT
+private:
+	void playSound(const QString &fileName);
+	QMap<QString, QByteArray> audioData;
+	QBuffer *inputBuffer;
+	QAudioOutput *audio;
+private slots:
+	void cacheData();
+public:
+	SoundEngine(QObject *parent = 0);
+public slots:
+	void notification();
+	void draw();
+	void playCard();
+	void shuffle();
+	void tap();
+	void untap();
+};
+
+extern SoundEngine *soundEngine;
+
+#endif
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