From 7e2dd8a718faec29123556532e6398e779370b54 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 6 Oct 2021 22:40:37 -0600
Subject: [PATCH] triggerbox: add follow count support

---
 libs/ardour/ardour/triggerbox.h |  5 +++++
 libs/ardour/triggerbox.cc       | 14 +++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/libs/ardour/ardour/triggerbox.h b/libs/ardour/ardour/triggerbox.h
index 0d64318f7b..3b527412db 100644
--- a/libs/ardour/ardour/triggerbox.h
+++ b/libs/ardour/ardour/triggerbox.h
@@ -167,6 +167,9 @@ class LIBARDOUR_API Trigger : public PBD::Stateful {
 	virtual void jump_start ();
 	virtual void jump_stop ();
 
+	uint32_t follow_count() const { return _follow_count; }
+	void set_follow_count (uint32_t n);
+	
 	void set_ui (void*);
 	void* ui () const { return _ui; }
 
@@ -182,6 +185,8 @@ class LIBARDOUR_API Trigger : public PBD::Stateful {
 	PBD::Property<bool>  _use_follow;
 	FollowAction _follow_action[2];
 	int _follow_action_probability;
+	uint32_t _follow_cnt;
+	uint32_t _follow_count;
 	boost::shared_ptr<Region> _region;
 	Temporal::BBT_Offset _quantization;
 	PBD::Property<bool> _legato;
diff --git a/libs/ardour/triggerbox.cc b/libs/ardour/triggerbox.cc
index 9dea409201..3a68b4fb22 100644
--- a/libs/ardour/triggerbox.cc
+++ b/libs/ardour/triggerbox.cc
@@ -56,6 +56,8 @@ Trigger::Trigger (uint64_t n, TriggerBox& b)
 	, _use_follow (Properties::use_follow, true)
 	, _follow_action { NextTrigger, Stop }
 	, _follow_action_probability (100)
+	, _follow_cnt (0)
+	, _follow_count (1)
 	, _quantization (Temporal::BBT_Offset (0, 1, 0))
 	, _legato (Properties::legato, true)
 	, _stretch (1.0)
@@ -98,6 +100,13 @@ Trigger::unbang ()
 	DEBUG_TRACE (DEBUG::Triggers, string_compose ("un-bang on %1\n", _index));
 }
 
+
+void
+Trigger::set_follow_count (uint32_t n)
+{
+	_follow_count = n;
+}
+
 void
 Trigger::set_follow_action (FollowAction f, uint64_t n)
 {
@@ -222,6 +231,7 @@ void
 Trigger::startup()
 {
 	_state = WaitingToStart;
+	_follow_cnt = _follow_count;
 	PropertyChanged (ARDOUR::Properties::running);
 }
 
@@ -811,7 +821,9 @@ AudioTrigger::run (BufferSet& bufs, pframes_t nframes, pframes_t dest_offset, bo
 
 			/* We reached the end */
 
-			if ((_launch_style == Repeat) || (_box.peek_next_trigger() == this)) { /* self repeat */
+			_follow_cnt--;
+
+			if ((_follow_cnt != 0) || (_launch_style == Repeat) || (_box.peek_next_trigger() == this)) { /* self repeat */
 				nframes -= this_read;
 				dest_offset += this_read;
 				DEBUG_TRACE (DEBUG::Triggers, string_compose ("%1 reached end, but set to loop, so retrigger\n", index()));