Experimental patch to ensure playback buffer bounds use minimal beat->frame rounding.

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

diff --git a/libs/ardour/ardour/buffer_set.h b/libs/ardour/ardour/buffer_set.h
index 5049eda70a36f149f76d8394ad396b816cb1e38e..9ea6ab7d6ad1d3620d347fb4eea78971d53fb481 100644 (file)
--- a/libs/ardour/ardour/buffer_set.h
+++ b/libs/ardour/ardour/buffer_set.h
@@ -27,9 +27,10 @@
 #include <vector>
 #include "ardour/chan_count.h"
 #include "ardour/data_type.h"
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 
-#if defined VST_SUPPORT || defined LXVST_SUPPORT
+#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
 #include "evoral/MIDIEvent.hpp"
 struct _VstEvents;
 typedef struct _VstEvents VstEvents;
@@ -61,7 +62,7 @@ class PortSet;
  * others the form of their output (eg what they did to the BufferSet).
  * Setting the use counts is realtime safe.
  */
-class BufferSet
+class LIBARDOUR_API BufferSet
 {
 public:
        BufferSet();
@@ -70,7 +71,7 @@ public:
        void clear();
 
        void attach_buffers (PortSet& ports);
-       void get_jack_port_addresses (PortSet &, framecnt_t);
+       void get_backend_port_addresses (PortSet &, framecnt_t);
 
        /* the capacity here is a size_t and has a different interpretation depending
           on the DataType of the buffers. for audio, its a frame count. for MIDI
@@ -86,7 +87,6 @@ public:
        const ChanCount& count() const { return _count; }
        ChanCount&       count()       { return _count; }
 
-       void set_is_silent(bool yn);
        void silence (framecnt_t nframes, framecnt_t offset);
        bool is_mirror() const { return _is_mirror; }
 
@@ -112,19 +112,25 @@ public:
        }
 
 #ifdef LV2_SUPPORT
-       /** Get a MIDI buffer translated into an LV2 MIDI buffer for use with plugins.
-        * The index here corresponds directly to MIDI buffer numbers (i.e. the index
-        * passed to get_midi), translation back and forth will happen as needed.
-        * If atom_type is 0 the returned buffer will be in the old event API
-        * format.  Otherwise, atom_type must be the URID for atom:Sequence.
+       /** Get a MIDI buffer translated into an LV2 MIDI buffer for use with
+        * plugins.  The index here corresponds directly to MIDI buffer numbers
+        * (i.e. the index passed to get_midi), translation back and forth will
+        * happen as needed.  If old_api is true, the returned buffer will be in
+        * old event format.  Otherwise it will be in new atom sequence format.
         */
-       LV2_Evbuf* get_lv2_midi(bool input, size_t i, uint32_t atom_type);
+       LV2_Evbuf* get_lv2_midi(bool input, size_t i, bool old_api);
+
+       /** ensure minimum size of LV2 Atom port buffer */
+       void ensure_lv2_bufsize(bool input, size_t i, size_t buffer_capacity);
 
        /** Flush modified LV2 event output buffers back to Ardour buffers */
        void flush_lv2_midi(bool input, size_t i);
+
+       /** Forward plugin MIDI output to to Ardour buffers */
+       void forward_lv2_midi(LV2_Evbuf*, size_t, bool purge_ardour_buffer = true);
 #endif
 
-#if defined VST_SUPPORT || defined LXVST_SUPPORT
+#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
        VstEvents* get_vst_midi (size_t);
 #endif
 
@@ -183,7 +189,7 @@ private:
        LV2Buffers _lv2_buffers;
 #endif
 
-#if defined VST_SUPPORT || defined LXVST_SUPPORT
+#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
        class VSTBuffer {
        public:
                VSTBuffer (size_t);