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__ */