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, 33 insertions, 0 deletions

diff --git a/libs/ardour/ardour/thread_buffers.h b/libs/ardour/ardour/thread_buffers.h
new file mode 100644
index 0000000000..3c312176a8
--- /dev/null
+++ b/libs/ardour/ardour/thread_buffers.h
@@ -0,0 +1,33 @@
+#ifndef __libardour_thread_buffers__
+#define __libardour_thread_buffers__
+
+#include <glibmm/thread.h>
+
+#include "ardour/chan_count.h"
+#include "ardour/types.h"
+
+namespace ARDOUR {
+
+class BufferSet;
+
+class ThreadBuffers {
+  public:  
+        ThreadBuffers ();
+        ~ThreadBuffers ();
+
+        void ensure_buffers (ChanCount howmany = ChanCount::ZERO);
+
+        BufferSet* silent_buffers;
+        BufferSet* scratch_buffers;
+        BufferSet* mix_buffers;
+        gain_t*    gain_automation_buffer;
+        pan_t**    pan_automation_buffer;
+        uint32_t   npan_buffers;
+
+  private:
+        void allocate_pan_automation_buffers (nframes_t nframes, uint32_t howmany, bool force);
+};
+
+} // namespace
+
+#endif /* __libardour_thread_buffers__ */