substantive change: use the JACK wait API and provide "thread buffers" separately from session in preparation for parallelization. lots of debug output at present. If using JACK1, requires a very current version of JACK1 SVN (0.119.0)

git-svn-id: svn://localhost/ardour2/branches/3.0@6888 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 44 insertions, 0 deletions

diff --git a/libs/ardour/ardour/process_thread.h b/libs/ardour/ardour/process_thread.h
new file mode 100644
index 0000000000..d6bbbfc6fc
--- /dev/null
+++ b/libs/ardour/ardour/process_thread.h
@@ -0,0 +1,44 @@
+#ifndef __libardour_process_thread__
+#define __libardour_process_thread__
+
+#include <glibmm/thread.h>
+
+#include "ardour/chan_count.h"
+#include "ardour/types.h"
+
+namespace ARDOUR {
+
+class ThreadBuffers;
+
+class ProcessThread
+{
+  public:
+    ProcessThread ();
+    ~ProcessThread ();
+
+    static void init();
+
+    void get_buffers ();
+    void drop_buffers ();
+
+    /* these MUST be called by a process thread's thread, nothing else
+     */
+
+    static BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
+    static BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
+    static BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
+    static gain_t* gain_automation_buffer ();
+    static pan_t** pan_automation_buffer ();
+
+  protected:
+    void session_going_away ();
+
+  private:
+    Glib::Thread* _thread;
+
+    static Glib::Private<ThreadBuffers>* _private_thread_buffers;
+};
+
+} // namespace
+
+#endif /* __libardour_process_thread__ */