Special-case VCA at 0 (-inf dB), force gain slaves to -inf dB

[ardour.git] / libs / ardour / ardour / buffer.h

diff --git a/libs/ardour/ardour/buffer.h b/libs/ardour/ardour/buffer.h
index 87f7a90fc30a72ba6e3e55be93cf2bb14dabc70b..7d6fa75620138bd36234b4a71a4a9c18616bbf5e 100644 (file)
--- a/libs/ardour/ardour/buffer.h
+++ b/libs/ardour/ardour/buffer.h
@@ -23,6 +23,7 @@
 
 #include <boost/utility.hpp>
 
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 #include "ardour/data_type.h"
 
@@ -38,7 +39,7 @@ namespace ARDOUR {
  *
  * To actually read/write buffer contents, use the appropriate derived class.
  */
-class Buffer : public boost::noncopyable
+class LIBARDOUR_API Buffer : public boost::noncopyable
 {
 public:
        virtual ~Buffer() {}
@@ -68,8 +69,8 @@ public:
        /** Clear the entire buffer */
        virtual void clear() { silence(_capacity, 0); }
 
-       virtual void read_from (const Buffer& src, framecnt_t len, framecnt_t dst_offset = 0, framecnt_t src_offset = 0) = 0;
-       virtual void merge_from (const Buffer& src, framecnt_t len, framecnt_t dst_offset = 0, framecnt_t src_offset = 0) = 0;
+       virtual void read_from (const Buffer& src, framecnt_t len, frameoffset_t dst_offset = 0, frameoffset_t src_offset = 0) = 0;
+       virtual void merge_from (const Buffer& src, framecnt_t len, frameoffset_t dst_offset = 0, frameoffset_t src_offset = 0) = 0;
 
   protected:
        Buffer(DataType type)