libs/ardour/ardour/process_thread.h

   1 #ifndef __libardour_process_thread__
   2 #define __libardour_process_thread__
   3
   4 #include <glibmm/thread.h>
   5
   6 #include "ardour/chan_count.h"
   7 #include "ardour/types.h"
   8
   9 namespace ARDOUR {
  10
  11 class ThreadBuffers;
  12
  13 class ProcessThread
  14 {
  15 public:
  16         ProcessThread ();
  17         ~ProcessThread ();
  18
  19         static void init();
  20
  21         void get_buffers ();
  22         void drop_buffers ();
  23
  24         /* these MUST be called by a process thread's thread, nothing else
  25          */
  26
  27         static BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
  28         static BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
  29         static BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
  30         static gain_t* gain_automation_buffer ();
  31         static pan_t** pan_automation_buffer ();
  32
  33 protected:
  34         void session_going_away ();
  35
  36 private:
  37         Glib::Thread* _thread;
  38
  39         static Glib::Private<ThreadBuffers>* _private_thread_buffers;
  40 };
  41
  42 } // namespace
  43
  44 #endif /* __libardour_process_thread__ */