X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fbuffer_set.h;h=9ea6ab7d6ad1d3620d347fb4eea78971d53fb481;hb=eaa1dacf5fc9537cfff36e2339bd07aab348aa2e;hp=0c4d5671d355adaa3449842fe4b0fa0b129a7456;hpb=477bc772beaf1214e309edd4fb748621c07e2e7b;p=ardour.git

diff --git a/libs/ardour/ardour/buffer_set.h b/libs/ardour/ardour/buffer_set.h
index 0c4d5671d3..9ea6ab7d6a 100644
--- a/libs/ardour/ardour/buffer_set.h
+++ b/libs/ardour/ardour/buffer_set.h
@@ -27,17 +27,27 @@
 #include <vector>
 #include "ardour/chan_count.h"
 #include "ardour/data_type.h"
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 
+#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
+#include "evoral/MIDIEvent.hpp"
+struct _VstEvents;
+typedef struct _VstEvents VstEvents;
+struct _VstMidiEvent;
+typedef struct _VstMidiEvent VstMidiEvent;
+#endif
+
+#ifdef LV2_SUPPORT
+typedef struct LV2_Evbuf_Impl LV2_Evbuf;
+#endif
+
 namespace ARDOUR {
 
 class Buffer;
 class AudioBuffer;
 class MidiBuffer;
 class PortSet;
-#ifdef HAVE_SLV2
-class LV2EventBuffer;
-#endif
 
 /** A set of buffers of various types.
  *
@@ -52,7 +62,7 @@ class LV2EventBuffer;
  * 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();
@@ -60,7 +70,8 @@ public:
 
 	void clear();
 
-	void attach_buffers(PortSet& ports, nframes_t nframes, nframes_t offset = 0);
+	void attach_buffers (PortSet& ports);
+	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
@@ -76,8 +87,7 @@ public:
 	const ChanCount& count() const { return _count; }
 	ChanCount&       count()       { return _count; }
 
-	void is_silent(bool yn);
-	void silence (nframes_t nframes, nframes_t offset);
+	void silence (framecnt_t nframes, framecnt_t offset);
 	bool is_mirror() const { return _is_mirror; }
 
 	void set_count(const ChanCount& count) { assert(count <= _available); _count = count; }
@@ -90,23 +100,43 @@ public:
 	AudioBuffer& get_audio(size_t i) {
 		return (AudioBuffer&)get(DataType::AUDIO, i);
 	}
+	const AudioBuffer& get_audio(size_t i) const {
+		return (const AudioBuffer&)get(DataType::AUDIO, i);
+	}
 
 	MidiBuffer& get_midi(size_t i) {
 		return (MidiBuffer&)get(DataType::MIDI, i);
 	}
+	const MidiBuffer& get_midi(size_t i) const {
+		return (const MidiBuffer&)get(DataType::MIDI, i);
+	}
+
+#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 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, bool old_api);
 
-#ifdef HAVE_SLV2
-	/** 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 */
-	LV2EventBuffer& get_lv2_midi(bool input, size_t i);
+	/** 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 WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
+	VstEvents* get_vst_midi (size_t);
 #endif
 
-	void read_from(const BufferSet& in, nframes_t nframes);
-	void merge_from(const BufferSet& in, nframes_t nframes);
+	void read_from(const BufferSet& in, framecnt_t nframes);
+	void read_from(const BufferSet& in, framecnt_t nframes, DataType);
+	void merge_from(const BufferSet& in, framecnt_t nframes);
 
 	template <typename BS, typename B>
 	class iterator_base {
@@ -153,12 +183,37 @@ private:
 	/// Vector of vectors, indexed by DataType
 	std::vector<BufferVec> _buffers;
 
-#ifdef HAVE_SLV2
+#ifdef LV2_SUPPORT
 	/// LV2 MIDI buffers (for conversion to/from MIDI buffers)
-	typedef std::vector< std::pair<bool, LV2EventBuffer*> > LV2Buffers;
+	typedef std::vector< std::pair<bool, LV2_Evbuf*> > LV2Buffers;
 	LV2Buffers _lv2_buffers;
 #endif
 
+#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT
+	class VSTBuffer {
+	public:
+		VSTBuffer (size_t);
+		~VSTBuffer ();
+
+		void clear ();
+		void push_back (Evoral::MIDIEvent<framepos_t> const &);
+		VstEvents* events () const {
+			return _events;
+		}
+
+	private:
+		/* prevent copy construction */
+		VSTBuffer (VSTBuffer const &);
+
+		VstEvents* _events; /// the parent VSTEvents struct
+		VstMidiEvent* _midi_events; ///< storage area for VSTMidiEvents
+		size_t _capacity;
+	};
+
+	typedef std::vector<VSTBuffer*> VSTBuffers;
+	VSTBuffers _vst_buffers;
+#endif
+
 	/// Use counts (there may be more actual buffers than this)
 	ChanCount _count;
 
@@ -167,9 +222,6 @@ private:
 
 	/// False if we 'own' the contained buffers, if true we mirror a PortSet)
 	bool _is_mirror;
-
-	/// Whether the buffer set should be considered silent
-	bool _is_silent;
 };