Don't take address of boolean flag, use flag itself instead.

[rtaudio-cdist.git] / RtAudio.h

diff --git a/RtAudio.h b/RtAudio.h
index f8285c09c398f81ee82fc50ea80d5c0103c676d6..ea08fdaa34153c321076d6176e6b10f7150f0631 100644 (file)
--- a/RtAudio.h
+++ b/RtAudio.h
@@ -5,12 +5,12 @@
     RtAudio provides a common API (Application Programming Interface)
     for realtime audio input/output across Linux (native ALSA, Jack,
     and OSS), Macintosh OS X (CoreAudio and Jack), and Windows
-    (DirectSound and ASIO) operating systems.
+    (DirectSound, ASIO and WASAPI) operating systems.
 
     RtAudio WWW site: http://www.music.mcgill.ca/~gary/rtaudio/
 
     RtAudio: realtime audio i/o C++ classes
-    Copyright (c) 2001-2013 Gary P. Scavone
+    Copyright (c) 2001-2014 Gary P. Scavone
 
     Permission is hereby granted, free of charge, to any person
     obtaining a copy of this software and associated documentation files
@@ -45,7 +45,7 @@
 #ifndef __RTAUDIO_H
 #define __RTAUDIO_H
 
-#define RTAUDIO_VERSION "4.1.0pre"
+#define RTAUDIO_VERSION "4.1.1"
 
 #include <string>
 #include <vector>
@@ -270,6 +270,7 @@ class RtAudio
     LINUX_OSS,      /*!< The Linux Open Sound System API. */
     UNIX_JACK,      /*!< The Jack Low-Latency Audio Server API. */
     MACOSX_CORE,    /*!< Macintosh OS-X Core Audio API. */
+    WINDOWS_WASAPI, /*!< The Microsoft WASAPI API. */
     WINDOWS_ASIO,   /*!< The Steinberg Audio Stream I/O API. */
     WINDOWS_DS,     /*!< The Microsoft Direct Sound API. */
     RTAUDIO_DUMMY   /*!< A compilable but non-functional API. */
@@ -285,12 +286,13 @@ class RtAudio
     bool isDefaultOutput;         /*!< true if this is the default output device. */
     bool isDefaultInput;          /*!< true if this is the default input device. */
     std::vector<unsigned int> sampleRates; /*!< Supported sample rates (queried from list of standard rates). */
+    unsigned int preferredSampleRate; /*!< Preferred sample rate, eg. for WASAPI the system sample rate. */
     RtAudioFormat nativeFormats;  /*!< Bit mask of supported data formats. */
 
     // Default constructor.
     DeviceInfo()
       :probed(false), outputChannels(0), inputChannels(0), duplexChannels(0),
-       isDefaultOutput(false), isDefaultInput(false), nativeFormats(0) {}
+       isDefaultOutput(false), isDefaultInput(false), preferredSampleRate(0), nativeFormats(0) {}
   };
 
   //! The structure for specifying input or ouput stream parameters.
@@ -385,14 +387,14 @@ class RtAudio
 
   //! The class constructor.
   /*!
-    The constructor performs minor initialization tasks.  No exceptions
-    can be thrown.
+    The constructor performs minor initialization tasks.  An exception
+    can be thrown if no API support is compiled.
 
     If no API argument is specified and multiple API support has been
     compiled, the default order of use is JACK, ALSA, OSS (Linux
     systems) and ASIO, DS (Windows systems).
   */
-  RtAudio( RtAudio::Api api=UNSPECIFIED ) throw();
+  RtAudio( RtAudio::Api api=UNSPECIFIED );
 
   //! The destructor.
   /*!
@@ -537,6 +539,12 @@ class RtAudio
   */
   double getStreamTime( void );
 
+  //! Set the stream time to a time in seconds greater than or equal to 0.0.
+  /*!
+    If a stream is not open, an RtAudioError (type = INVALID_USE) will be thrown.
+  */
+  void setStreamTime( double time );
+
   //! Returns the internal stream latency in sample frames.
   /*!
     The stream latency refers to delay in audio input and/or output
@@ -566,11 +574,15 @@ class RtAudio
 };
 
 // Operating system dependent thread functionality.
-#if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__)
+#if defined(__WINDOWS_DS__) || defined(__WINDOWS_ASIO__) || defined(__WINDOWS_WASAPI__)
+
+  #ifndef NOMINMAX
+    #define NOMINMAX
+  #endif
   #include <windows.h>
   #include <process.h>
 
-  typedef ULONG_PTR ThreadHandle;
+  typedef uintptr_t ThreadHandle;
   typedef CRITICAL_SECTION StreamMutex;
 
 #elif defined(__LINUX_ALSA__) || defined(__LINUX_PULSE__) || defined(__UNIX_JACK__) || defined(__LINUX_OSS__) || defined(__MACOSX_CORE__)
@@ -681,6 +693,7 @@ public:
   long getStreamLatency( void );
   unsigned int getStreamSampleRate( void );
   virtual double getStreamTime( void );
+  virtual void setStreamTime( double time );
   bool isStreamOpen( void ) const { return stream_.state != STREAM_CLOSED; }
   bool isStreamRunning( void ) const { return stream_.state == STREAM_RUNNING; }
   void showWarnings( bool value ) { showWarnings_ = value; }
@@ -825,6 +838,7 @@ inline bool RtAudio :: isStreamRunning( void ) const throw() { return rtapi_->is
 inline long RtAudio :: getStreamLatency( void ) { return rtapi_->getStreamLatency(); }
 inline unsigned int RtAudio :: getStreamSampleRate( void ) { return rtapi_->getStreamSampleRate(); }
 inline double RtAudio :: getStreamTime( void ) { return rtapi_->getStreamTime(); }
+inline void RtAudio :: setStreamTime( double time ) { return rtapi_->setStreamTime( time ); }
 inline void RtAudio :: showWarnings( bool value ) throw() { rtapi_->showWarnings( value ); }
 
 // RtApi Subclass prototypes.
@@ -977,6 +991,43 @@ public:
 
 #endif
 
+#if defined(__WINDOWS_WASAPI__)
+
+struct IMMDeviceEnumerator;
+
+class RtApiWasapi : public RtApi
+{
+public:
+  RtApiWasapi();
+  ~RtApiWasapi();
+
+  RtAudio::Api getCurrentApi( void ) { return RtAudio::WINDOWS_WASAPI; }
+  unsigned int getDeviceCount( void );
+  RtAudio::DeviceInfo getDeviceInfo( unsigned int device );
+  unsigned int getDefaultOutputDevice( void );
+  unsigned int getDefaultInputDevice( void );
+  void closeStream( void );
+  void startStream( void );
+  void stopStream( void );
+  void abortStream( void );
+
+private:
+  bool coInitialized_;
+  IMMDeviceEnumerator* deviceEnumerator_;
+
+  bool probeDeviceOpen( unsigned int device, StreamMode mode, unsigned int channels,
+                        unsigned int firstChannel, unsigned int sampleRate,
+                        RtAudioFormat format, unsigned int* bufferSize,
+                        RtAudio::StreamOptions* options );
+
+  static DWORD WINAPI runWasapiThread( void* wasapiPtr );
+  static DWORD WINAPI stopWasapiThread( void* wasapiPtr );
+  static DWORD WINAPI abortWasapiThread( void* wasapiPtr );
+  void wasapiThread();
+};
+
+#endif
+
 #if defined(__LINUX_ALSA__)
 
 class RtApiAlsa: public RtApi