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When refilling playback buffer, try to fill it completely, or at least
using the next-lowest power-of-2 as the amount to read. When locating,
where we use do_refill_with_alloc(), only partially fill the buffer.
Work not yet finished, but possibly promising.
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mechanism away from a 64bit integer and toward std::bitset.
Clean up a few minor related PBD::DEBUG issues along the way
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This moves MIDI channel filtering into a reusable class and moves filtering to
the source, rather than modifying the buffer afterwards. This is necessary so
that the playlist trackers reflect the emitted notes (and thus are able to stop
them in situations like mute).
As a perk, this is also faster because events are just dropped on read, rather
than pushed into a buffer then later removed (which is very slow).
Really hammering on mute or solo still seems to produce stuck notes
occasionally (perhaps related to multiple-on warnings). I am not yet sure why,
but occasional beats always.
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Fixes bug #6206.
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this is not a fix yet, just some comments and
code cleanup done while reading/investigating:
* limit reads to available write-space
* skip inactive tracks
* handle potential unsigned + negative value.
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diskstream reads directly from port, Route
use prefilled buffer-set.
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reading. Write chunk size should remain unchanged from before.
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operation is undefined. C works on all platforms
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This is a little hard-edged in that edits while rolling will prematurely chop
off any playing notes, but at least the state of things actually reflects
reality. More sophisticated solution hopefully to come...
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Attempt to make mistakes much less likely in the future by statically requiring
caller to pass scoped locks where necessary.
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Comments in various call sites of Evoral::coverage() marking things I think
are dubious (with XXX). Also straightened up the alignment of some ASCII
art in libs/ardour/diskstream.cc
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This is not used anywhere in Evoral and is just a wrapper around the PBD
RingBuffer anyway. Towards a (once again?) independently buildable/testable
Evoral and fewer cross-dependencies.
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This lets us get a more explicit handle on time conversions, and is the main
step towards using actual beat:tick time and getting away from floating point
precision problems.
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Manually resolved conflicts in import.cc and session.cc
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(previously it was not reset as long as rec-arm and rec-enable
remained enabled)
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For audio: not writing frames to the capture ringbuffer offsets
the recording.
For midi: we need to keep track of the record range
and subtract the accumulated difference from the event time.
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sources, especially when created via import
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renaming
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region on demand and cloning/unlinking
Existing code would cause data loss due to creation of two Source objects referring the same path, one with removable flags and one without. Careful code review suggested a variety of thinkos, function naming problems and other confusion that caused this. I have tried ot extensively comment what is going on with these operations, because it is one key area in which MIDI differs from audio: with audio, capture is the only way to add a new audio region, but for MIDI there are GUI input events that can add a new region.
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non-capture driven MIDI region creation operations).
See comments in Session::new_midi_source_name() for details.
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renaming
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region on demand and cloning/unlinking
Existing code would cause data loss due to creation of two Source objects referring the same path, one with removable flags and one without. Careful code review suggested a variety of thinkos, function naming problems and other confusion that caused this. I have tried ot extensively comment what is going on with these operations, because it is one key area in which MIDI differs from audio: with audio, capture is the only way to add a new audio region, but for MIDI there are GUI input events that can add a new region.
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non-capture driven MIDI region creation operations).
See comments in Session::new_midi_source_name() for details.
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Conflicts (hopefully resolved):
gtk2_ardour/marker.cc
gtk2_ardour/midi_region_view.h
gtk2_ardour/region_gain_line.h
gtk2_ardour/utils.cc
gtk2_ardour/video_image_frame.cc
gtk2_ardour/wscript
libs/backends/jack/wscript
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to be complete)
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means const int*
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fixes
* http://tracker.ardour.org/view.php?id=5628
* http://tracker.ardour.org/view.php?id=5561
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This reverts commit 7ef79d3f4b02e3d2e71d6888fbedd9b3f9c325c7.
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fixes
* http://tracker.ardour.org/view.php?id=5628
* http://tracker.ardour.org/view.php?id=5561
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This reverts commit 7ef79d3f4b02e3d2e71d6888fbedd9b3f9c325c7.
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Rect macros, plus some const_cast<> and unused variable fixes that should really be in master but will have to wait till we rebase master
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commit fdbae82077db53add90df7448a06869dac89acc6
Author: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed Mar 27 21:45:28 2013 -0400
mammoth changes in basic signal flow, total redesign of MIDI channel filtering and more.
commit 59343a8283698e02bc0f622313b29e98f449e4c8
Author: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed Mar 27 01:58:53 2013 -0400
initial working version after changes to MIDI channel filtering. may affect metering input too. testing not yet finished
this commit merges many deep changes in ardour's internal architecture,
combined with a total redesign of how MIDI channel filtering works.
data in a track used to flow from JACK port buffers to diskstream's ringbuffers
and was then copied from the ringbuffers into a BufferSet for use during
Route::process_output_buffers(). The butler thread would handle the movement of
data between the ringbuffers and disk.
with this commit, data now flows from JACK port buffers into the BufferSet used
for Route processing, and is copied from the BufferSet into the diskstream's
ringbuffers (the butler thread continues to handle interactions with disk as
usual).
this change allowed a dramatic consolidation of code and simplification of most
aspects of Track/Route::roll() and Track/Route::no_roll(). in particular, see
Route::fill_buffers_with_input() which now concisely describes how we move data
from JACK port buffers into the BufferSet for all Route types (including Tracks).
this work was initially motivated by changing MIDI channel filtering so that we
can process capture and playback independently. there is now a very clean
pathway for this - see MidiTrack::roll() (NOTE: This needs implementing in the
no-roll case too - a TODO item).
the channel selector for MIDI tracks has been moved out of the track header and
is now accessible via the context menu. more work is likely here, to make it
(more) obvious to the user when filtering is going on.
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