From cee33ba4c0859b117be94df6ccbf3eb756a850af Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 10 Feb 2007 07:30:56 +0000
Subject: Finished MIDI genericification. Work on MIDI learn.

git-svn-id: http://svn.drobilla.net/lad/machina@299 a436a847-0d15-0410-975c-d299462d15a1
---
 src/engine/machina/Action.hpp     |  4 ++++
 src/engine/machina/JackDriver.hpp | 34 ++++++++++++++++++++++++++--------
 src/engine/machina/Machine.hpp    |  5 +++--
 src/engine/machina/MidiAction.hpp | 18 ++++++++++++------
 src/engine/machina/types.hpp      |  1 +
 5 files changed, 46 insertions(+), 16 deletions(-)

(limited to 'src/engine/machina')

diff --git a/src/engine/machina/Action.hpp b/src/engine/machina/Action.hpp
index ffee5b1..feb0e0b 100644
--- a/src/engine/machina/Action.hpp
+++ b/src/engine/machina/Action.hpp
@@ -25,6 +25,10 @@
 namespace Machina {
 
 
+/** An Action, executed on entering or exiting of a state.
+ *
+ * Actions do not have time as a property.
+ */
 struct Action {
 	virtual ~Action() {}
 
diff --git a/src/engine/machina/JackDriver.hpp b/src/engine/machina/JackDriver.hpp
index bae3ab2..9a72a62 100644
--- a/src/engine/machina/JackDriver.hpp
+++ b/src/engine/machina/JackDriver.hpp
@@ -23,16 +23,21 @@
 #include <jack/midiport.h>
 #include "Machine.hpp"
 #include "MidiDriver.hpp"
+#include <boost/enable_shared_from_this.hpp>
 
 namespace Machina {
 
+class MidiAction;
+class Node;
+
 
 /** Realtime JACK Driver.
  *
  * "Ticks" are individual frames when running under this driver, and all code
  * in the processing context must be realtime safe (non-blocking).
  */
-class JackDriver : public Raul::JackDriver, public Machina::MidiDriver {
+class JackDriver : public Raul::JackDriver, public Machina::MidiDriver,
+                   public boost::enable_shared_from_this<JackDriver> {
 public:
 	JackDriver();
 
@@ -45,18 +50,31 @@ public:
 	Timestamp    cycle_start()  { return _current_cycle_start; }
 	FrameCount   cycle_length() { return _current_cycle_nframes; }
 	
+	void learn(SharedPtr<Node> node);
+	
+	void write_event(Timestamp            time,
+	                 size_t               size,
+	                 const unsigned char* event);
+	
 private:
 	// Audio context
-	Timestamp    subcycle_offset()  { return _current_cycle_offset; }
-	jack_port_t* output_port() { return _output_port; }
-	virtual void on_process(jack_nframes_t nframes);
+	Timestamp    subcycle_offset() { return _current_cycle_offset; }
 	Timestamp    stamp_to_offset(Timestamp stamp);
+
+	void         process_input(jack_nframes_t nframes);
+	virtual void on_process(jack_nframes_t nframes);
+
 	SharedPtr<Machine> _machine;
 
-	jack_port_t*       _output_port;
-	Timestamp          _current_cycle_start;
-	Timestamp          _current_cycle_offset; ///< for split cycles
-	FrameCount         _current_cycle_nframes;
+	SharedPtr<Node>       _learn_node;
+	SharedPtr<MidiAction> _learn_enter_action;
+	SharedPtr<MidiAction> _learn_exit_action;
+
+	jack_port_t* _input_port;
+	jack_port_t* _output_port;
+	Timestamp    _current_cycle_start;
+	Timestamp    _current_cycle_offset; ///< for split cycles
+	FrameCount   _current_cycle_nframes;
 };
 
 
diff --git a/src/engine/machina/Machine.hpp b/src/engine/machina/Machine.hpp
index 5d16a4e..4036ef3 100644
--- a/src/engine/machina/Machine.hpp
+++ b/src/engine/machina/Machine.hpp
@@ -20,7 +20,8 @@
 
 #include <vector>
 #include <map>
-#include "raul/SharedPtr.h"
+#include <raul/SharedPtr.h>
+#include <raul/List.h>
 #include "types.hpp"
 #include "Node.hpp"
 
@@ -48,7 +49,7 @@ public:
 	FrameCount time() { return _time; }
 
 private:
-	typedef std::vector<SharedPtr<Node> > Nodes;
+	typedef Raul::List<SharedPtr<Node> > Nodes;
 	
 	// Audio context
 	SharedPtr<Node> earliest_node() const;
diff --git a/src/engine/machina/MidiAction.hpp b/src/engine/machina/MidiAction.hpp
index 2e1d1fc..d362a63 100644
--- a/src/engine/machina/MidiAction.hpp
+++ b/src/engine/machina/MidiAction.hpp
@@ -19,6 +19,7 @@
 #define MACHINA_MIDIACTION_HPP
 
 #include <raul/WeakPtr.h>
+#include <raul/AtomicPtr.h>
 #include "types.hpp"
 #include "Action.hpp"
 
@@ -29,16 +30,21 @@ class MidiDriver;
 
 class MidiAction : public Action {
 public:
-	JackNoteOnAction(WeakPtr<MidiDriver> driver,
-	                 size_t              size,
-	                 unsigned char*      event);
+	MidiAction(WeakPtr<MidiDriver>       driver,
+	           size_t                    size,
+	           const unsigned char*      event);
+
+	~MidiAction();
+
+	bool set_event(size_t size, const byte* event);
 
 	void execute(Timestamp time);
 
 private:
-	WeakPtr<MidiDriver> _driver;
-	size_t              _size;
-	unsigned char*      _event;
+	WeakPtr<MidiDriver>    _driver;
+	size_t                 _size;
+	const size_t           _max_size;
+	Raul::AtomicPtr<byte>  _event;
 };
 
 
diff --git a/src/engine/machina/types.hpp b/src/engine/machina/types.hpp
index db36901..1236f65 100644
--- a/src/engine/machina/types.hpp
+++ b/src/engine/machina/types.hpp
@@ -26,6 +26,7 @@ namespace Machina {
 typedef jack_nframes_t FrameCount;
 typedef jack_nframes_t Timestamp;
 
+typedef unsigned char byte;
 
 } // namespace Machina
 
-- 
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