Adding OpenBSD's sndio support.

Updating jackmsr's work, adding sndio cmake module.
Updating 64 bits OS arch detection (amd64).

include/AudioSndio.h

@@ -0,0 +1,54 @@
+#ifndef _AUDIO_SNDIO_H
+#define _AUDIO_SNDIO_H
+
+#include "lmmsconfig.h"
+
+#ifdef LMMS_HAVE_SNDIO
+
+#include <sndio.h>
+
+#include "AudioDevice.h"
+#include "AudioDeviceSetupWidget.h"
+
+class LcdSpinBox;
+class QLineEdit;
+
+
+class AudioSndio : public AudioDevice, public QThread
+{
+public:
+	AudioSndio( bool & _success_ful, Mixer * _mixer );
+	virtual ~AudioSndio();
+
+	inline static QString name( void )
+	{
+		return QT_TRANSLATE_NOOP( "setupWidget", "sndio" );
+	}
+
+	class setupWidget : public AudioDeviceSetupWidget
+	{
+	public:
+		setupWidget( QWidget * _parent );
+		virtual ~setupWidget();
+
+		virtual void saveSettings( void );
+
+	private:
+		QLineEdit * m_device;
+		LcdSpinBox * m_channels;
+	} ;
+
+private:
+	virtual void startProcessing( void );
+	virtual void stopProcessing( void );
+	virtual void applyQualitySettings( void );
+	virtual void run( void );
+
+	struct sio_hdl *m_hdl;
+	struct sio_par m_par;
+} ;
+
+
+#endif	/* LMMS_HAVE_SNDIO */
+
+#endif	/* _AUDIO_SNDIO_H */

include/MidiSndio.h

@@ -0,0 +1,48 @@
+#ifndef _MIDI_SNDIO_H
+#define _MIDI_SNDIO_H
+
+#include "lmmsconfig.h"
+
+#ifdef LMMS_HAVE_SNDIO
+
+#include <QtCore/QThread>
+#include <QtCore/QFile>
+
+#include <sndio.h>
+
+#include "MidiClient.h"
+
+class QLineEdit;
+
+
+class MidiSndio : public MidiClientRaw, public QThread
+{
+public:
+	MidiSndio( void );
+	virtual ~MidiSndio();
+
+	static QString probeDevice(void);
+
+	inline static QString name(void)
+	{
+		return QT_TRANSLATE_NOOP("MidiSetupWidget", "sndio MIDI");
+	}
+
+    inline static QString configSection()
+    {
+        return "MidiSndio";
+    }
+
+
+protected:
+	virtual void sendByte(const unsigned char c);
+	virtual void run(void);
+
+private:
+	struct mio_hdl *m_hdl;
+	volatile bool m_quit;
+} ;
+
+#endif	/* LMMS_HAVE_SNDIO */
+
+#endif	/* _MIDI_SNDIO_H */