Version CVS HEAD (?) * packaging changes: - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly, causing e.g. the libgig test to fail when "./configure --disable-jack-driver" was used (patch by Alexis Ballier) - fixed compilation with gcc 4.3 - fixes for building on OS X (thanks to Ebrahim Mayat for testing) - fixed configure so it detects x86_64 (#107) - fixes for building with newer MinGW versions - fix for building with bison 2.4 (#111) * general changes: - bugfix: on some POSIX systems instrument editor plugins refused to load as we used a non-portable Linux specific struct field (fixes bug #70, patch by Ronald Baljeu) - fixed endless loop which occured when loading an instrument editor plugin DLL on Windows systems failed - fixed memory leaks that occurred when liblinuxsampler was unloaded - optimized the SynchronizedConfig class so it doesn't wait unnecessarily long after an update - added support for notifying instrument editors on note-on / note-off events (e.g. to highlight the pressed keys on the virtual keyboard of gigedit) - added support for triggering notes by instrument editors (see above) - be verbose on DLL load errors (on Linux) - fixed di-harmonic triangle LFO implementation (this LFO implementation is only used by very few systems, most pick the int math implementation, which is usually faster) - fixes for audio drivers with varying buffer sizes - experimental support for running LinuxSampler as a DSSI, LV2 and VST plugin - notification events for stream/voice count statistics are now sent only when there are actual changes - added memory ordering constraints to improve stability on multi-core and multi-cpu systems - maximum voices and disk streams can now be altered at runtime - fixed CPU feature detection on x86_64 (maybe fixes #108) * audio driver: - removed the nonsense audio channel constraint (which was hard coded to max. 100 audio channels) for most audio drivers - JACK audio driver did not offer a device parameter "SAMPLERATE" as opposed to the LSCP specs - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK) reflected the wrong value - fixed a memory management bug in ASIO driver - Makefile fix: JACK_CFLAGS wasn't used - JACK: use jack_client_open instead of the deprecated jack_client_new - added (experimental) CoreAudio driver * MIDI driver: - added JACK MIDI driver - dispatch bank select as ordinary CC as well, the user might seriously want to (mis)use it for some purpose ("fixed" in all current MIDI input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME) * instruments database: - avoid time consuming samples scanning when adding instruments to the instruments database - added support for handling lost files in the instruments database - Implemented option for adding instruments in separate directories in the instruments database (patch by Chris Cherrett & Andrew Williams, a bit adjusted) * Gigasampler format engine: - fixed a memory leak that could happen when a channel was deleted while notes were playing - made it possible to load an instrument even if the audio thread isn't running - added partial support for the "Controller Triggered" MIDI rule, enough for piano gigs with pedal noise samples - minor fix: only mark FX sends as being modified if really the respective FX send MIDI controller was used - added support for GM global device volume SysEx message (can be selected at compile time to either apply globally to the whole sampler [default] or only to the sampler channels that are connected to the respective MIDI input port the SysEx message arrived on) - bugfix: notes triggered at position 0 in the audio buffer were sometimes wrongly killed in the same buffer, causing no sound to be played - added support for chromatic / drumkit mode Roland GS Sysex message which is usally used to switch a part between chromatic sounds and drumkit sounds (as opposed to their common default setting of MIDI part 10 being a drumkit part and all other ones chromatic parts), in LS however one can switch between the first 16 MIDI instrument maps defined for the sampler - made it possible to create multiple sample channels even if the audio thread isn't running * LSCP server: - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to react on MIDI data arriving on certain sampler channels (so far only Note-On and Note-Off events are sent via this LSCP event) - added new LSCP event "DEVICE_MIDI" which can be used by frontends to react on MIDI data arriving on certain MIDI input devices (so far only Note-On and Note-Off events are sent via this LSCP event) - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and SET DB_INSTRUMENT FILE_PATH - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by frontends to send MIDI messages to specific sampler channel - added two additional fields to GET FILE INSTRUMENT INFO command - KEY_BINDINGS and KEYSWITCH_BINDINGS - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications was incorrect - Optimized the retrieval of the MIDI instrument mappings - added new LSCP command "SET VOICES" to globally alter the maximum amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will be triggered respectively - added new LSCP command "SET STREAMS" to globally alter the maximum amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS" which will be triggered respectively - bugfix: retry if "select" returns EINTR (this fixes a crash when a gigedit file dialog is opened) * Bug fixes: - fixed a crash which occurs when removing a sampler channel waiting to start instrument loading after another channel - fixed a crash which occurs when removing a sampler channel with instrument loading in progress (bug #113) - fixed termination caused by uncaught exception when adding MIDI instrument with PERSISTENT load mode Version 0.5.1 (6 December 2007) * packaging changes: - added autoconf checks for pthread library - added autoconf check for pthread bug found on certain NPTL-enabled glibc versions (see Gentoo bug report #194076) - added autoconf checks for MS Windows * general changes: - bugfix: the thread used by an editor plugin didn't die when the editor closed - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero out all the space. operator--() did not apply size_mask after decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in order to avoid problems with the _NonVolatileReader functions. - bugfix: Stream.h: added a missing divide by BytesPerSample in GetWriteSpace(). Since this function is currently only used in the stream's qsort() compare function, it didn't trigger any bugs. - Resampler.h, Synthesizer.h: cubic interpolation now works in 24bit mode too. Faster method to read 24bit words on little endian machines (x86): replaced 3 byte reads + shifts with a 1 unaligned 32bit read and shift - experimental support for MS Windows (MIDI input via MME, AUDIO output via ASIO) - made handling of SIGINT signal (Ctrl-C) a bit more robust - support for monitoring the total number of active disk streams (new LSCP commands: GET TOTAL_STREAM_COUNT, SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT) * AUDIO driver: - added Windows ASIO low latency audio driver * MIDI driver: - added MME Windows MIDI driver * LSCP server: - added support for Windows style path / filenames, however with forward slash path separators instead of backslash (i.e. "C:/foo/bar.gig") - allow naughty liblscp to send non-string device parameters within apostrophes as well - added new LSCP commands: "GET FILE INSTRUMENTS ", "LIST FILE INSTRUMENTS " and "GET FILE INSTRUMENT INFO " for retrieving informations about an arbitrary instrument file on the system where the sampler is running on Version 0.5.0 (15 October 2007) * packaging changes: - config.h is not going to be installed along with liblinuxsampler's API header files anymore - only the API relevant header (and source) files will be exported to the Doxygen API documentation (explicitly listed in Doxyfile.in) - added completely new XCode project files for Mac OSX which is now capable to execute our autoconf environment, thus no need anymore to maintain the compile time configuration file (osx/version.h) for OSX manually (patch by Toshi Nagata) - fixed buggy boolean --enable-foo / --disable-foo configure script parameters - global.h now only covers global definitions that are needed for the C++ API header files, all implementation internal global definitions are now in global_private.h - atomic.h is not exposed to the C++ API anymore - no need to include config.h anymore for using LS's API header files - fixed warnings in API doc generation * general changes: - replaced the old, confusing MIDI program change mechanism by a flexible MIDI instrument mapper which allows to map arbitrary (MIDI bank, MIDI program) pairs with arbitrary (engine type, instrument file, file index) triplets which will be loaded on the respective channel when such MIDI program change messages arrive, beside that, each entry allows to define a life-time strategy for the instrument, so the user can define whether the instrument should i.e. be permanently loaded (to be able to switch quickly among sounds) or i.e. loaded just on demand when the respective program change arrives (to safe RAM space), as well as a global volume factor for each entry, so the user can adjust the volume dynamic of his mapped instrument collection without having to modify the instrument files, also one can manage arbitrary amount of such MIDI instrument maps and assign each sampler channel individually a certain map, so that i.e. separation of normal instruments and drumkits is possible - new notification events for tracking changes to audio/MIDI devices, MIDI instrument maps, MIDI instruments, FX sends, global volume. - sampler was limited to load max. 200 instruments in the background due to a constant size RingBuffer FIFO which is now replaced by a dynamic (unlimited) size std::list FIFO - added FX sends, these allow to route audio signals to arbitrary audio output channels for being processed by external effect processors (i.e. jack-rack), the send levels are controllable via arbitrary MIDI controllers - global (sampler wide) volume can now be controlled at runtime - Implemented new, improved notification system - fixed compilation errors regarding OSX (patch by Toshi Nagata) - implemented instruments database - added support for escape sequences to the instruments database - added highly experimental support for on-the-fly instrument editing within the sampler's process (by using instrument editor plugins), you'll notice the new "Registered instrument editors:" message on startup, added a new LSCP command: "EDIT CHANNEL INSTRUMENT " to spawn a matching instrument editor for the instrument on the given sampler channel, the plugin path can be overridden at compile time with ./configure --enable-plugin-dir=/some/dir - added experimental code for synchronizing instrument editors hosted in the sampler's process to safely edit instruments while playing without a crash (hopefully) by either suspending single regions wherever possible or if unavoidable whole engine(s) - fixed several issues in fundamental "Thread" class: set scheduling policy and priority on thread level, set a minimum stack size for thread (TODO: a reasonable value yet to be tested), bugfix: non-RT threads simply inherited properties of starting thread instead of setting their own policy and priority - minor fix in our automatic stack trace mechanism on crashes, the main process did not wait for the stack trace process to finish its output - fixed some minor memory leaks - reenabled assembly features support, at the moment only for enabling a fast denormal FPU mode (x86 platforms supporting SSE2) - minor assembly fix in x86 features detection (don't use the PIC register, to avoid relocations in the text segment at runtime) - POSIX callback functions of Thread.h are hidden * MIDI driver: - dispatch bank select (MSB and LSB) messages * audio driver: - the ALSA audio output driver parameters now reflect the correct parameter value ranges for the respective selected sound card (patch by Till Wimmer, a bit fixed and extended) * Gigasampler format engine: - if a filter is used and EG2 finishes before EG1, let the voice die when EG2 has finished (this fixes a problem with clicks and voice starvation for some gigs) - playback is no longer disabled during instrument loading - all notes playing on a channel that changes its instrument keep playing with the old instrument until they get a note off command - EG fix: a release value of zero could cause noises or crash - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB) - EG fine tuning: when attack is zero the EG starts at a level above max sustain level, which means that there is a decay phase even if sustain is 100% - more EG fixes: the level could sometimes go below zero and cause noises or crashes - minor fix of EGDecay (patch by Toshi Nagata) - fixed compiler error when --enable-override-filter-type was supplied to the configure script (fixes #46) - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS instead of a fix value - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode), 127 (solo mode) only kill voices if the respective mode really changed * LSCP server: - fixed compile time error for old Bison versions (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata) - parser now supports extended ASCII character set (up to ASCII code 255, i.e. includes now umlauts and accents) - filename arguments in LSCP commands now allow to use escape sequences, that is directly literal as one of: \', \", \\, \n, \r, \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII code value like \xf2) (fixes bug #24) - the following LSCP commands now also support escape sequences for at least one of their text-based parameters (i.e. name, description): "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT", "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND", "SET DB_INSTRUMENT_DIRECTORY NAME", "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME", "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS", "FIND DB_INSTRUMENT_DIRECTORIES" - returns verbose syntax errors (line and column where syntax error occured, the unexpected character and the actually expected, possible character(s), the latter only if less than 5 possibilities) - made sure that LSCP syntax is not affected by gigedit locale settings - bugfix regarding strings parameter lists: all comma separated lists of strings were treated as being one string containing commas (fixes #57) * Bug fixes: - fixed crash occurring on certain LSCP scripts (Bug 39) - another thread safety fix for lscp "load engine" and "set channel audio output device" - fixed a crash which occurs when reassigning the same engine on a sampler channel with connected MIDI device - fixed a crash which occurs when changing the number of ports of a MIDI device connected to a sampler channel to number less then or equal to the index of the port to which the sampler channel is connected. - The previous bindings were not been disconnected when altering the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE). - The active stream/voice count statistic was incorrect. - notification events were not been sent for some sampler channel changes - added default min and max values to restrict the number of allowed audio output channels and MIDI input ports - the connection to the PCM interface is now closed when destroying an audio output device - files with slash in their path or filename could not be loaded * test cases: - updated and fixed (haven't been touched in a while) Version 0.4.0 (24 November 2006) * packaging changes: - changed deprecated copyright attribute to license; added ldconfig to post-(un)install steps; added devel package for liblinuxsampler; to linuxsampler.spec (RPM) - install necessary development header files for allowing 3rd party applications to link against liblinuxsampler - liblinuxsampler's API documentation can be generated with 'make docs' (Doxygen required) - added benchmark to automatically detect the best triangle LFO implementation (currently either an integer math solution or a di-harmonic approximation), automatic detection can be overriden with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x configure script argument though (mandatory for cross-compilation) - do not automatically pick optimized gcc flags if the user already provided some on his own (as CXXFLAGS) - added compile time option to disable processing of All-Notes-Off MIDI messages - added compile time options to allow disabling the various audio and MIDI drivers - fixed automatic GCC CPU switch detection on PPC (patch by Ebrahim Mayat) * Gigasampler format engine: - 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 pitch and filter coefficients. The volume coefficient is linearly interpolated inside a subfragment, unless --disable-interpolate-volume is set.) - fine tuning of the EG modulation parameters - improved filter cutoff calculation by adding support for the following gig parameters: Cutoff freq (used when no cutoff controller is defined), Control invert, Minimum cutoff, Velocity curve and Velocity range. The keyboard tracking now scales cutoff frequency instead of resonance. - added support for gig parameter Resonance. - fixed bug in sysex handling (patch by Juan Linietsky) - added global volume attenuation of -9 dB (0.35f) to prevent clipping which can be overridden with --enable-global-attenuation - EG fixes: made the length of "attack hold" stage more accurate. Release stage can now start before attack stage ends. Cancel release didn't work when sustain was zero. Attack time now has a minimal value to prevent clicks. - fixed pitch changes larger than one octave - fixed EG3 (pitch envelope) synthesis which was neutral all the time - implemented portamento mode and solo mode (a.k.a 'mono mode'): all modes can be altered via standard GM messages, that is CC5 for altering portamento time, CC65 for enabling / disabling portamento mode, CC126 for enabling solo mode and CC127 for disabling solo mode - fine tuning of the curves for volume (CC7), pan (CC10 and gig parameter) and crossfade - added support for the "attenuation controller threshold" gig parameter - added smoothing of volume changes caused by control change messages - sample loop parameters are now taken from the DimensionRegion instead of the wave chunk - fixed keyswitching for v3 gigs with a number of keyswitch splits not equal to a power of two - reimplementation of the filter algorithm. The new filter is more accurate and supports all gig filter types, including bandreject and lowpass turbo. - real support for 24 bit samples - samples are not truncated to 16 bits anymore - support for aftertouch (channel pressure, not polyphonic aftertouch) - LFO1 behaviour fixed (dampening from max volume instead of amplifying from 0) * LSCP server: - fixed application exit on broken pipe error (fixes bug #20) - fixed the notification messages delay due to lack of network activity (fixes bug #26) - fixed parser bug which occured on space(s) within device parameters (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'") * audio driver: - added aRts audio output driver (by no means RT safe) * MIDI driver: - fixed legacy sysex code which caused dispatching of MIDI SysEx messages several times instead of once - API extension for MIDI drivers which already supply exact time stamps for events (i.e. for offline rendering based MIDI drivers) - added checks for bad MIDI data * linuxsampler application: - show available sampler engine types on startup * general changes: - 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, the behavior is the same like on a mixer console (patch by Grigor Iliev, a bit adjusted). Also added configure option --enable-process-muted-channels which can be used to enable the processing of muted channels. - support for sostenuto pedal - support for monitoring the total number of active voices (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX, SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT) - fixed some memory management errors - fixed some concurrency problems that could lead to crashes when LSCP commands were executed - fixed crash when instrument loading failed previously on the same sampler channel (fixes bug #36) Version 0.3.3 (15 July 2005) * packaging changes: - fixed compilation with gcc 4.0 * Gigasampler format engine: - LFO preprocessing was performed even though the respective LFO was disabled by the instrument patch (minor efficiency fix) - if period time of chosen audio device is too small (< MIN_RELEASE_TIME) for volume ramp downs in the same fragment (needed for current voice stealing implementation) then simply inform the user with a warning about possible click sounds and reduce the volume ramp down appropriately instead of cancelling the audio device connection Version 0.3.2 (24 June 2005) * packaging changes: - updated autotools build files to compile on OS X (conditional compilation of CoreMIDI and MidiShare drivers) - hand-crafted assembly optimization code can be disabled with './configure --disable-asm' (definitely not recommended) - fixed 'make dist' rule to include all necessary files - require automake (>= 1.5) for 'make -f Makefile.cvs' (due to 'dist-bzip2' automake option) * Gigasampler format engine: - support for the gig parameters for "release velocity response" curves - fine tuning of the EGADSR envelope - volume of release triggered samples now depends on note-on velocity, note length and gig parameter "release trigger decay" instead of note-off velocity. - revised voice stealing (fixes crash and endless loop caused by voice stealing) - don't reset scale tuning on instrument or audio output device change - handle key group conflicts right at the beginning of each fragment instead of when the respective voice is actually launched (fixes undefined behavior if stolen voices belonged to a key group - this case was followed by a "killed voice survived" error message) - fixed minor issue with null/silence samples (those stole voices even though they don't need a voice at all which resulted in "voice stealing didn't work out" messages) - don't reset volume, pan, pitch and MIDI controller values on instrument or audio output device change * LSCP server: - fixed some crashes (patch by Grigor Iliev, fixes #19) - fixed LSCP event "CHANNEL_INFO" notification (e.g. did not notify on volume changes or MIDI program change events) * linuxsampler application: - added command line parameters --lscp-addr and --lscp-port to override default IP address and port of LSCP server Version 0.3.1 (24 May 2005) * initial release