From: Robin Gareus <robin@gareus.org>
Date: Thu, 19 Jan 2017 20:07:22 +0000 (+0100)
Subject: Scale default Atom Ringbuffer size with samplerate
X-Git-Tag: 5.6~241
X-Git-Url: https://main.carlh.net/gitweb/?a=commitdiff_plain;h=761747760921b5c6b3f4899ca1c40e9aa27bc4a0;hp=5d7b6fdd627af94906aaf2fd5405bb33312f96f8;p=ardour.git

Scale default Atom Ringbuffer size with samplerate

This increases the safe-margin for plugins producing more messages
sent to the plugin GUI (usually fixed ~25Hz updates)
---

diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 24fa22dcfd..a1a7ce860a 100644
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -1647,7 +1647,8 @@ LV2Plugin::write_from_ui(uint32_t       index,
 		if (_atom_ev_buffers && _atom_ev_buffers[0]) {
 			bufsiz =  lv2_evbuf_get_capacity(_atom_ev_buffers[0]);
 		}
-		rbs = max((size_t) bufsiz * 8, rbs);
+		int fact = ceilf(_session.frame_rate () / 3000.f);
+		rbs = max((size_t) bufsiz * std::max (8, fact), rbs);
 		_from_ui = new RingBuffer<uint8_t>(rbs);
 	}