diff options
| author | Carl Hetherington <carl@carlh.net> | 2009-11-25 23:29:52 +0000 |
|---|---|---|
| committer | Carl Hetherington <carl@carlh.net> | 2009-11-25 23:29:52 +0000 |
| commit | 47b8fa21699e58f733f0ecb879193092f93c93d8 (patch) | |
| tree | a47e1b89847432a89dba16f09cf8dc4700ee8d6f /libs/ardour/ardour/processor.h | |
| parent | fe59ade87415d72072009f1e77a892f9989819a0 (diff) | |
Give Processor::run a new parameter to say whether or not the run method must leave
the passed-in buffers valid. In the case where the main outs delivery is the last
processor in a route, this is not necessary (and wasteful). If another processor
(e.g. a meter) follows the main outs, the passed-in (scratch) buffers must be valid
or the meter will get garbage data.
Fixes meters displaying phantom signals in some cases.
git-svn-id: svn://localhost/ardour2/branches/3.0@6180 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/processor.h')
| -rw-r--r-- | libs/ardour/ardour/processor.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libs/ardour/ardour/processor.h b/libs/ardour/ardour/processor.h index 3ec4a9885d..c57eb4354c 100644 --- a/libs/ardour/ardour/processor.h +++ b/libs/ardour/ardour/processor.h @@ -70,7 +70,10 @@ class Processor : public SessionObject, public AutomatableControls, public Laten virtual void set_block_size (nframes_t /*nframes*/) {} - virtual void run (BufferSet& /*bufs*/, sframes_t /*start_frame*/, sframes_t /*end_frame*/, nframes_t /*nframes*/) {} + /** @param result_required true if, on return from this method, bufs is required to contain valid data; + * if false, the method need not bother writing to bufs if it doesn't want to. + */ + virtual void run (BufferSet& /*bufs*/, sframes_t /*start_frame*/, sframes_t /*end_frame*/, nframes_t /*nframes*/, bool /*result_required*/) {} virtual void silence (nframes_t /*nframes*/) {} virtual void activate () { _pending_active = true; ActiveChanged(); } |