chuck - with sndio backend

audio/chuck/patches/patch-src_host_RtAudio_RtAudio_h

@@ -0,0 +1,50 @@
+Index: src/host/RtAudio/RtAudio.h
+--- src/host/RtAudio/RtAudio.h.orig
++++ src/host/RtAudio/RtAudio.h
+@@ -255,6 +255,7 @@ class RTAUDIO_DLL_PUBLIC RtAudio
+     LINUX_ALSA,     /*!< The Advanced Linux Sound Architecture API. */
+     LINUX_PULSE,    /*!< The Linux PulseAudio API. */
+     LINUX_OSS,      /*!< The Linux Open Sound System API. */
++    OPENBSD_SNDIO,  /*!< The OpenBSD sndio API. */
+     UNIX_JACK,      /*!< The Jack Low-Latency Audio Server API. */
+     MACOSX_CORE,    /*!< Macintosh OS-X Core Audio API. */
+     WINDOWS_WASAPI, /*!< The Microsoft WASAPI API. */
+@@ -1144,6 +1145,38 @@ class RtApiOss: public RtApi (public)
+   private:
+ 
+   bool probeDeviceOpen( unsigned int device, StreamMode mode, unsigned int channels, 
++                        unsigned int firstChannel, unsigned int sampleRate,
++                        RtAudioFormat format, unsigned int *bufferSize,
++                        RtAudio::StreamOptions *options ) /* override */;
++};
++
++#endif
++
++#if defined(__OPENBSD_SNDIO__)
++
++class RtApiSndio: public RtApi
++{
++public:
++
++  RtApiSndio();
++  ~RtApiSndio();
++  RtAudio::Api getCurrentApi() /* override */ { return RtAudio::OPENBSD_SNDIO; }
++  unsigned int getDeviceCount( void ) /* override */;
++  RtAudio::DeviceInfo getDeviceInfo( unsigned int device ) /* override */;
++  void closeStream( void ) /* override */;
++  RtAudioErrorType startStream( void ) /* override */;
++  RtAudioErrorType stopStream( void ) /* override */;
++  RtAudioErrorType abortStream( void ) /* override */;
++
++  // This function is intended for internal use only.  It must be
++  // public because it is called by the internal callback handler,
++  // which is not a member of RtAudio.  External use of this function
++  // will most likely produce highly undesirable results!
++  void callbackEvent( void );
++
++  private:
++
++  bool probeDeviceOpen( unsigned int device, StreamMode mode, unsigned int channels,
+                         unsigned int firstChannel, unsigned int sampleRate,
+                         RtAudioFormat format, unsigned int *bufferSize,
+                         RtAudio::StreamOptions *options ) /* override */;