From 05def9fc79404a032709e955fb0f8f3abf440398 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Sun, 17 Jan 2016 16:20:34 -0500 Subject: Fix CPU overload with some CV to control arcs --- src/server/Buffer.cpp | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'src') diff --git a/src/server/Buffer.cpp b/src/server/Buffer.cpp index 8a36039e..4fbb44f9 100644 --- a/src/server/Buffer.cpp +++ b/src/server/Buffer.cpp @@ -347,19 +347,19 @@ Buffer::next_value_offset(SampleCount offset, SampleCount end) const return ev->time.frames; } } - } else if (is_audio()) { - /* FIXME: This results in split cycles when a CV output port is - connected to a control input port. In the worst case, that could - run the receiving plugin every sample. Some way of controlling this - behaviour is needed. */ - float val = samples()[offset]; - for (SampleCount i = offset + 1; i < end; ++i) { - if (samples()[i] != val) { - return i; - } - } } + /* For CV buffers, it's possible to scan for a value change here, which for + stepped CV would do the right thing, but in the worst case (e.g. with + sine waves), when connected to a control port would split the cycle for + every frame which isn't feasible. Instead, just return end, so the + cycle will not be split. + + A plugin that takes CV and emits discrete change events, possibly with a + maximum rate or fuzz factor, would allow the user to choose which + behaviour, at the cost of some overhead. + */ + return end; } -- cgit v1.2.1