Log of /linuxsampler/trunk/src/engines/common

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Revision 791 - Directory Listing
Modified Sun Oct 16 14:50:20 2005 UTC (18 years, 6 months ago) by persson

* Filter tuning: calculation of cutoff frequency and bandwidth
  improved. Removed use of "BasicBPFilter". Changed bandpass filter
  from constant peak to constant skirt. Use gig parameter Resonance if
  no resonance controller is set. Removed keyboard tracking influence
  on resonance.

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Revision 741 - Directory Listing
Modified Tue Aug 16 17:20:55 2005 UTC (18 years, 8 months ago) by schoenebeck

-  deleted LFO.h
- added LFOBase.h, LFOTriangleDiHarmonic.h,
  LFOTriangleIntAbsMath.h and LFOTriangleIntMath.h

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Revision 738 - Directory Listing
Modified Tue Aug 16 17:14:25 2005 UTC (18 years, 8 months ago) by schoenebeck

* extensive synthesis optimization: reimplementation of EGs and LFO(s),
  removed synthesis parameter prerendering and the synthesis parameter
  matrix in general, splitting each audio fragment into subfragments now
  where each subfragment uses constant synthesis parameters
  (everything's still very buggy ATM)

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Revision 722 - Directory Listing
Modified Sun Jul 24 19:45:15 2005 UTC (18 years, 9 months ago) by schoenebeck

just a little API doc change

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Revision 721 - Directory Listing
Modified Sun Jul 24 19:44:44 2005 UTC (18 years, 9 months ago) by schoenebeck

- fixed di-harmonic triangle LFO implementation
- calculated exact amplitude coefficient of 2nd harmonic

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Revision 720 - Directory Listing
Modified Sun Jul 24 18:22:56 2005 UTC (18 years, 9 months ago) by senkov

Added a variation of LFOTriangleIntMath using abs()

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Revision 719 - Directory Listing
Modified Sun Jul 24 16:48:11 2005 UTC (18 years, 9 months ago) by senkov

Adjusted code to build on gcc (GCC) 3.4.3-20050110

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Revision 718 - Directory Listing
Modified Sun Jul 24 15:05:30 2005 UTC (18 years, 9 months ago) by schoenebeck

fixed integer math implementation of triangle LFO

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Revision 717 - Directory Listing
Modified Sun Jul 24 10:26:17 2005 UTC (18 years, 9 months ago) by schoenebeck

Added "real" implementations of the triangle LFOs. Unfortunately
I introduced some bugs - the output results don't look like they should.
This has to be fixed.

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Revision 713 - Directory Listing
Modified Thu Jul 21 20:50:45 2005 UTC (18 years, 9 months ago) by schoenebeck

oops, did I screw indention here? ;)

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Revision 705 - Directory Listing
Modified Wed Jul 20 21:43:23 2005 UTC (18 years, 9 months ago) by schoenebeck

* support for muting sampler channels and solo mode of the same, two new
  LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
  fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
  introduced for this (patch by Grigor Iliev, a bit adjusted)

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Revision 685 - Directory Listing
Modified Tue Jul 5 19:30:37 2005 UTC (18 years, 9 months ago) by persson

* gcc 4.0 compilation fixes

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Revision 675 - Directory Listing
Modified Wed Jun 22 22:09:28 2005 UTC (18 years, 10 months ago) by schoenebeck

* update MIDI channel info on program change

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Revision 670 - Directory Listing
Modified Tue Jun 21 18:00:52 2005 UTC (18 years, 10 months ago) by schoenebeck

* don't reset volume, pan, pitch and MIDI controller values on instrument
  or audio output device change
* send 'CHANNEL_INFO' LSCP event on MIDI program change messages

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Revision 660 - Directory Listing
Modified Fri Jun 17 19:49:30 2005 UTC (18 years, 10 months ago) by schoenebeck

* LSCP server: fixed LSCP event "CHANNEL_INFO" notification
  (e.g. did not notify on volume changes)

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Revision 654 - Directory Listing
Modified Wed Jun 15 20:25:25 2005 UTC (18 years, 10 months ago) by schoenebeck

* fixed 'make dist' build rule to include all necessary files

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Revision 617 - Directory Listing
Modified Wed Jun 8 21:00:06 2005 UTC (18 years, 10 months ago) by schoenebeck

* hand-crafted assembly optimization code can be disabled with
  './configure --disable-asm' (definitely not recommended)

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Revision 563 - Directory Listing
Modified Sun May 22 20:43:32 2005 UTC (18 years, 11 months ago) by schoenebeck

* (re)implemented voice stealing algorithm "oldestvoiceonkey" and made it
  the default voice stealing algorithm
* added new LSCP command "GET SERVER INFO" which currently returns
  description and version about this sampler
* added some API documentation comments
* minor cleanup

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Revision 510 - Directory Listing
Modified Wed May 4 12:02:35 2005 UTC (18 years, 11 months ago) by schoenebeck

* autotools build fixes for PPC architecture

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Revision 504 - Directory Listing
Modified Tue May 3 00:37:35 2005 UTC (18 years, 11 months ago) by schoenebeck

* removed statically included libgig sources from the LinuxSampler code
  base - you now have to compile and install libgig separately
* added -Wreturn-type gcc switch to avoid bugs with no returns on non void
  functions in future

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Revision 502 - Directory Listing
Modified Fri Apr 29 14:20:22 2005 UTC (18 years, 11 months ago) by letz

Fix destructor

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Revision 497 - Directory Listing
Modified Sun Apr 10 11:55:44 2005 UTC (19 years ago) by persson

* removed some build warnings
* fixed a bug with hanging notes when using sustain pedal
* release samples are not triggered anymore when sustain pedal is down

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Revision 475 - Directory Listing
Modified Thu Mar 17 23:56:56 2005 UTC (19 years, 1 month ago) by schoenebeck

* fixed segmentation fault on "GET CHANNEL INFO" commands which occured
  when an engine type was selected but no audio device connected yet to
  the sampler channel (fixes bug #4)

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Revision 412 - Directory Listing
Modified Sat Feb 26 22:44:51 2005 UTC (19 years, 1 month ago) by schoenebeck

* gig::Engine: fixed silence (engine channels' events were not imported
  into the engine, fixed undesired creation of new gig::Engine instances
  (and disk threads)
* AudioOutputDevice: reverted behavior to render per Engine instance (and
  not per EngineChannel instance)

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Revision 411 - Directory Listing
Modified Sat Feb 26 02:01:14 2005 UTC (19 years, 1 month ago) by schoenebeck

* design change: using now one sampler engine instance and one disk thread
  instance for all sampler channels that are connected to the same audio
  output device (and are using the same engine type of course)
* added EngineFactory / EngineChannelFactory to remove the annoying build
  dependencies e.g. of the lscpserver to the actual sampler engine
  implementations
* bumped version to 0.3.0 (current CVS state is still quite broken,
  previous, stable CVS version was tagged as "v0_2_0" and is also available
  as source tarball)

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Revision 392 - Directory Listing
Modified Sat Feb 19 02:40:24 2005 UTC (19 years, 2 months ago) by schoenebeck

* fixed possibility that memory got not locked
* immediately set instrument status when calling LOAD INSTUMENT NON_MODAL

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Revision 376 - Directory Listing
Modified Sat Feb 12 23:48:50 2005 UTC (19 years, 2 months ago) by senkov

* Added INSTRUMENT_NAME to GET CHANNEL INFO command result set

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Revision 361 - Directory Listing
Modified Wed Feb 9 01:22:18 2005 UTC (19 years, 2 months ago) by schoenebeck

* bunch of fixes for OSX (patch by Stephane Letz)

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Revision 329 - Directory Listing
Modified Tue Dec 28 09:43:04 2004 UTC (19 years, 3 months ago) by senkov

* Fixes for engine reloading. Fixed streaming bugs in some
 cases only, most probably not all yet.

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Revision 328 - Directory Listing
Modified Sat Dec 25 21:58:58 2004 UTC (19 years, 3 months ago) by schoenebeck

* architecture independence fixes, should now compile again for non x86
  systems
* tiny fix of command line switch --version

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Revision 324 - Directory Listing
Modified Sat Dec 18 18:54:46 2004 UTC (19 years, 4 months ago) by senkov

* Applied patch from Andreas Persson and made a few other small
 changes to fix a bug in the filter code.

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Revision 320 - Directory Listing
Modified Mon Dec 13 00:53:16 2004 UTC (19 years, 4 months ago) by schoenebeck

* introduced 'synthesis mode' to reduce the amount of code and conditionals
  for the current synthesis case in the main synthesis loop
* support for MMX and SSE(1) in the core synthesis algorithms (CPU feature
  detection at runtime, only x86 so far)

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Revision 319 - Directory Listing
Modified Mon Dec 13 00:46:42 2004 UTC (19 years, 4 months ago) by schoenebeck

* introduced 'synthesis mode' to reduce the amount of code and conditionals
  for the current synthesis case in the main synthesis loop
* support for MMX and SSE(1) in the core synthesis algorithms (CPU feature
  detection at runtime, only x86 so far)

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Revision 293 - Directory Listing
Modified Mon Oct 25 15:14:27 2004 UTC (19 years, 5 months ago) by schoenebeck

* gig::Engine: changed way how events make it from the input event queue
  into the engine's process chain (fixes forced segfault in EGADSR)
* Event.h: using signed type for fragment position for easier
  differentiation if event might happened before or after current fragment

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Revision 292 - Directory Listing
Modified Mon Oct 25 14:59:18 2004 UTC (19 years, 5 months ago) by schoenebeck

encapsulated error message into quotation marks

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Revision 288 - Directory Listing
Modified Tue Oct 19 00:36:34 2004 UTC (19 years, 6 months ago) by schoenebeck

* configure.in: added check for UNIX98 compatibility, check if there's at
  least one supported MIDI input and audio output system available, added
  conditionals for ALSA and JACK
* src/drivers/audio/Makefile.am: ALSA and JACK drivers are only compiled
  respectively if they're supported by the system
* MidiInputDeviceFactory.cpp, AudioOutputDeviceFactory.cpp: little
  workaround for reported linker problem
* removed autotools generated files from CVS

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Revision 271 - Directory Listing
Modified Fri Oct 8 20:51:39 2004 UTC (19 years, 6 months ago) by schoenebeck

* libgig: fixed panorama value in DimensionRegion (invalid conversion
  from signed 7 bit to signed 8 bit)
* src/linuxsampler.cpp: stacktrace is now automatically shown on fatal
  errors (that is  segmentation faults, etc.), gdb should be installed for
  this to work
* gig::Voice: tiny accuracy fix of pan calculation
* replaced old pool classes by completely new ones which now offer
  Iterator abstraction

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Revision 268 - Directory Listing
Modified Thu Oct 7 22:20:20 2004 UTC (19 years, 6 months ago) by capela

* gcc-c++ 3.4.1 compability fixes.

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Revision 250 - Directory Listing
Modified Mon Sep 20 00:31:13 2004 UTC (19 years, 7 months ago) by schoenebeck

* added first two experimental voice stealing algorithms ('oldestkey' -
which just steals the oldest voice on the oldest key and 'keymask' - which
tries to pick the oldest voice on the same key where the new voice should
be spawned, if it fails it behaves like 'oldestkey'), the desired algorithm
can be selected at compile time (see Engine.h) will be configurable via
LSCP soon though

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Revision 246 - Directory Listing
Modified Sun Sep 19 14:12:55 2004 UTC (19 years, 7 months ago) by schoenebeck

just tidied up event type specific parameters (that is note-on specific
parameters, controle change specific parameters, etc.) in Event class

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Revision 244 - Directory Listing
Modified Fri Sep 17 01:01:11 2004 UTC (19 years, 7 months ago) by schoenebeck

* added support for scale tuning via MIDI GS system exclusive message

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Revision 225 - Directory Listing
Modified Sun Aug 22 14:46:47 2004 UTC (19 years, 8 months ago) by schoenebeck

* set default volume to 1.0 in Gigasampler engine (was 0.0)
* implemented "SET CHANNEL AUDIO_OUTPUT_CHANNEL" LSCP command
* fixed "GET ENGINE INFO" LSCP command
* fixed "GET CHANNEL INFO" LSCP command
* src/network/lscp.y: fixed 'stringval' rule (returned string with formal
  apostrophes), fixed 'dotnum' rule (ignored position after decimal point)

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Revision 205 - Directory Listing
Modified Tue Jul 13 23:16:40 2004 UTC (19 years, 9 months ago) by schoenebeck

accidently commited this file

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Revision 203 - Directory Listing
Modified Tue Jul 13 22:44:13 2004 UTC (19 years, 9 months ago) by schoenebeck

forgot to change some things which was mandatory due to the recent
directory movements ('/src/audiodriver' -> '/src/drivers/audio',
'/src/mididriver' -> '/src/drivers/midi')

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Revision 133 - Directory Listing
Modified Fri Jun 18 14:29:02 2004 UTC (19 years, 10 months ago) by capela

* Load Instrument patch applied; this patch makes the
  LOAD INSTRUMENT command to return immediately,
  almost/always with an OK response, while spawning
  the proper instrument file loading in the background.

* New INSTRUMENT_STATUS field on GET CHANNEL INFO result
  set; the instrument status value holds the load progress
  percentage if positive, otherwise a negative value is
  evidence of a load exception error.

* VERSION is now set to 0.2.

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Revision 112 - Directory Listing
Modified Sun Jun 6 20:57:28 2004 UTC (19 years, 10 months ago) by senkov

* Added methods for CHANNEL_INFO command

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Revision 80 - Directory Listing
Modified Sun May 23 19:16:33 2004 UTC (19 years, 11 months ago) by schoenebeck

* biquad filter parameters are now calculated outside the interpolate
  loop for better performance
* couple of loop unroll optimizations
* filter is now enabled by default
* cubic interpolation is now enabled by default
* reduced debug level to 1 to lower verbosity
* raised default limit for voices to 128
* raised default limit for streams to 150
* added some compiler optimization flags (-ffast-math -march -mcpu)

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Revision 64 - Directory Listing
Modified Thu May 6 20:06:20 2004 UTC (19 years, 11 months ago) by schoenebeck

* src/Sampler.cpp: fixed 3 stupid but fatal bugs that left in the rush (in
  method SamplerChannels(), CreateAudioOutputDevice() and
  CreateMidiInputDevice())
* src/network/lscpserver.cpp: implemented LSCP command
  'SET CHANNEL MIDI_INPUT_CHANNEL'
* src/Sampler.h: moved enums 'audio_output_type_t', 'midi_input_type_t'
  and 'engine_type_t' into the respective base classes
  ('AudioOutputDevice', 'MidiInputDevice', 'Engine')

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Revision 57 - Directory Listing
Modified Sun May 2 17:45:43 2004 UTC (19 years, 11 months ago) by schoenebeck

* src/common/Thread.cpp: method StartThread() now blocks until thread
  actually runs, mlockall() will only be applied for realtime threads
* libtoolized liblinuxsampler
* initiated automatic unit tests against the LinuxSampler codebase
  (see src/testcases): already added a couple of tests for the Thread and
  Mutex classes, you have to explicitly compile the unit tests by running
  'make testcases' (you need to have cppunit installed though) and then you
  can run the console version of the test runner by calling
  'src/testcases/linuxsamplertest'
* src/Sampler.h: added API documentation

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Revision 56 - Directory Listing
Modified Tue Apr 27 09:21:58 2004 UTC (19 years, 11 months ago) by schoenebeck

updated copyright header for 2004

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Revision 53 - Directory Listing
Added Mon Apr 26 17:15:51 2004 UTC (19 years, 11 months ago) by schoenebeck

* completely restructured source tree
* implemented multi channel support
* implemented instrument manager, which controls sharing of instruments
  between multiple sampler engines / sampler channels
* created abstract classes 'AudioOutputDevice' and 'MidiInputDevice' for
  convenient implementation of further audio output driver and MIDI input
  driver for LinuxSampler
* implemented following LSCP commands: 'SET CHANNEL MIDI INPUT TYPE',
  'LOAD ENGINE', 'GET CHANNELS', 'ADD CHANNEL', 'REMOVE CHANNEL',
  'SET CHANNEL AUDIO OUTPUT TYPE'
* temporarily removed all command line options
* LSCP server is now launched by default