When loading a Session add the Session patchfiles directory to the
MidiPatchManager search path and only process/parse the files for that
directory rather than refreshing/reparsing all the files. Similarly for unload,
just unload the devices that are from the Session specific midnam files instead
of removing the path and refreshing/reparsing all the files.
This will not remove the "system" midnam files as they are always added first
and duplicates from the session patchfiles directory are ignored.
The MidiPatchManager only requires a reference to the session to get the path
to the Session midnam directory so change it so that the path is passed to
MidiPatchManager::add_search_path on Session construction and removed on
Session Destruction. This will also make it easier to test and reduce compile
times etc.
For the common case where the Session doesn't have a Session specific midnam
patch files directory(for instance a new session) it won't cause a refresh and
reparsing of all the midnam files. This saves about 2 seconds to load a Session
on my machine(fast machine with SSD), or about half the time spent in the
Session constructor for a new session.
There is still going to be that initial cost of parsing the midnam files when
the first session is created after starting Ardour. Options to remove that
would be to parse the files asynchronously and or use a faster xml
parser(eventually), neither of which seem worth doing at this stage.
This change will cause a performance regression for the uncommon case where a
Session with Session specific midnam files is unloaded and then another Session
with Session specific midnam files is loaded as it will cause the common midnam
files in midi_patch_path to be parsed twice(unload and load).
Currently when loading a session for the first time MidiPatchManager::instance
creates the MidiPatchManager singleton which calls MPM::refresh and all the
midnam files are parsed etc. MPM::set_session is then immediately called and
all the MPM state that has just been set when parsing all the midnam files is
cleared and the parsing of all the files is performed again but this time with
any session specific midnam patch files.
MPM::instance and MPM::set_session consume about 55% of the time spent in the
Session ctor according to kcachegrind and removing the double call to refresh
brings Session construction time for a particular test session down from 7.5s
to 5.5s
Unfortunately we store the state of models as simply model, so if there's ever
duplicate model names, we're somewhat screwed, but this makes the (previously
unmanageably huge) menu usable, while retaining the "model name as global
identifier" state unmodified.
Windows headers define SearchPath which means we have to undefine it
where necessary. This is a pain and can be tricksy, so I feel renaming
the class slightly is the easiest solution.
It's slightly possible that this causes trivial build failures on different
configurations, but otherwise shouldn't cause any problems (i.e. no actual
changes other than include/naming/namespace stuff). I deliberately avoided
removing libardour-config.h since this can mysteriously break things, though a
few of those do seem to be unnecessary.
This commit only targets includes of ardour/*.h. There is also a very large
number of unnecessary includes of stuff in gtk2_ardour; tackling that should
also give a big improvement in build time when things are modified.
git-svn-id: svn://localhost/ardour2/branches/3.0@12420 d708f5d6-7413-0410-9779-e7cbd77b26cf
Vimmers, try let c_space_errors = 1 in your .vimrc to highlight this kind of stuff in red. I don't know the emacs equivalent...
git-svn-id: svn://localhost/ardour2/branches/3.0@5773 d708f5d6-7413-0410-9779-e7cbd77b26cf
The vast majority of Route signal processing is now simply in the list of
processors. There are definitely regressions here, but there's also
a lot of things fixed. It's far too much work to let diverge anymore
regardless, so here it is.
The basic model is: A route has a fixed set of input channels (matching
its JACK input ports and diskstream). The first processor takes this
as input. The next processor is configured using the first processor's
output as input, and is allowed to choose whatever output it wants
given that input... and so on, and so on. Finally, the last processor's
requested output is used to set up the panner and create whatever Jack
ports are needed to output the data.
All 'special' internal processors (meter, fader, amp, insert, send) are
currently transparent: they read any input, and return the same set
of channels back (unmodified, except for amp).
User visible changes:
* LV2 Instrument support (tracks with both MIDI and audio channels)
* MIDI in/out plugin support
* Generic plugin replication (for MIDI plugins, MIDI/audio plugins)
* Movable meter point
Known Bugs:
* Things seem to get weird on loaded sessions
* Output delivery is sketchy
* 2.0 session loading was probably already broken...
but it's definitely broken now :)
Please test this and file bugs if you have any time...
git-svn-id: svn://localhost/ardour2/branches/3.0@5055 d708f5d6-7413-0410-9779-e7cbd77b26cf
All #include statements that include a header that is a part of a library
bundled with ardour MUST use quotes, not angle brackets.
Do this:
#include "ardour/types.h"
NOT this:
#include <ardour/types.h>
Rationale:
This is best practice in general, to ensure we include the local version
and not the system version. That quotes mean "local" (in some sense)
and angle brackets mean "system" (in some sense) is a ubiquitous
convention and IIRC right in the C spec somewhere.
More pragmatically, this is required by (my) waf (stuff) for dependencies
to work correctly. That is:
!!! FAILURE TO DO THIS CAN RESULT IN BROKEN BUILDS !!!
Failure to comply is punishable by death by torture. :)
P.S. It's not that dramatic in all cases, but this (in combination with some
GCC flags specific to the include type) is the best way I have found to be
absolutely 100% positive the local ones are being used (and we definitely
want to be absolutely 100% positive on that one).
git-svn-id: svn://localhost/ardour2/branches/3.0@4655 d708f5d6-7413-0410-9779-e7cbd77b26cf
* commented out a crash line in ardour_ui2.cc (added a warning message).
(I thought, it may be fairly efficient to keep issues as code instead of putting
them in the tracker where hardly ever one would notice the needle in the haystack)
* forgot to clear two other collections on MidiPatchManager::refresh()
git-svn-id: svn://localhost/ardour2/branches/3.0@4312 d708f5d6-7413-0410-9779-e7cbd77b26cf
