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revision 649 by schoenebeck, Wed Jun 15 00:01:28 2005 UTC revision 1455 by persson, Sun Oct 21 11:59:59 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - added autoconf checks for pthread library
5        - added autoconf check for pthread bug found on certain NPTL-enabled
6          glibc versions (see Gentoo bug report #194076)
7    
8      * general changes:
9        - bugfix: the thread used by an editor plugin didn't die when the
10          editor closed
11    
12    Version 0.5.0 (15 October 2007)
13    
14      * packaging changes:
15        - config.h is not going to be installed along with liblinuxsampler's
16          API header files anymore
17        - only the API relevant header (and source) files will be exported to
18          the Doxygen API documentation (explicitly listed in Doxyfile.in)
19        - added completely new XCode project files for Mac OSX which is now
20          capable to execute our autoconf environment, thus no need anymore
21          to maintain the compile time configuration file (osx/version.h) for
22          OSX manually (patch by Toshi Nagata)
23        - fixed buggy boolean --enable-foo / --disable-foo configure script
24          parameters
25        - global.h now only covers global definitions that are needed for the
26          C++ API header files, all implementation internal global definitions
27          are now in global_private.h
28        - atomic.h is not exposed to the C++ API anymore
29        - no need to include config.h anymore for using LS's API header files
30        - fixed warnings in API doc generation
31    
32      * general changes:
33        - replaced the old, confusing MIDI program change mechanism by a
34          flexible MIDI instrument mapper which allows to map arbitrary
35          (MIDI bank, MIDI program) pairs with arbitrary
36          (engine type, instrument file, file index) triplets which will be
37          loaded on the respective channel when such MIDI program change
38          messages arrive, beside that, each entry allows to define a life-time
39          strategy for the instrument, so the user can define whether the
40          instrument should i.e. be permanently loaded (to be able to switch
41          quickly among sounds) or i.e. loaded just on demand when the
42          respective program change arrives (to safe RAM space), as well as a
43          global volume factor for each entry, so the user can adjust the volume
44          dynamic of his mapped instrument collection without having to modify
45          the instrument files, also one can manage arbitrary amount of such
46          MIDI instrument maps and assign each sampler channel individually
47          a certain map, so that i.e. separation of normal instruments and
48          drumkits is possible
49        - new notification events for tracking changes to audio/MIDI devices,
50          MIDI instrument maps, MIDI instruments, FX sends, global volume.
51        - sampler was limited to load max. 200 instruments in the background
52          due to a constant size RingBuffer FIFO which is now replaced by a
53          dynamic (unlimited) size std::list FIFO
54        - added FX sends, these allow to route audio signals to arbitrary audio
55          output channels for being processed by external effect processors
56          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
57          controllers
58        - global (sampler wide) volume can now be controlled at runtime
59        - Implemented new, improved notification system
60        - fixed compilation errors regarding OSX
61          (patch by Toshi Nagata)
62        - implemented instruments database
63        - added support for escape sequences to the instruments database
64        - added highly experimental support for on-the-fly instrument editing
65          within the sampler's process (by using instrument editor plugins),
66          you'll notice the new "Registered instrument editors:" message on
67          startup, added a new LSCP command:
68          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
69          to spawn a matching instrument editor for the instrument on the
70          given sampler channel, the plugin path can be overridden at compile
71          time with ./configure --enable-plugin-dir=/some/dir
72        - added experimental code for synchronizing instrument editors hosted
73          in the sampler's process to safely edit instruments while playing
74          without a crash (hopefully) by either suspending single regions
75          wherever possible or if unavoidable whole engine(s)
76        - fixed several issues in fundamental "Thread" class: set scheduling
77          policy and priority on thread level, set a minimum stack size for
78          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
79          threads simply inherited properties of starting thread instead of
80          setting their own policy and priority
81        - minor fix in our automatic stack trace mechanism on crashes, the
82          main process did not wait for the stack trace process to finish
83          its output
84        - fixed some minor memory leaks
85        - reenabled assembly features support, at the moment only for
86          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
87        - minor assembly fix in x86 features detection (don't use the PIC
88          register, to avoid relocations in the text segment at runtime)
89        - POSIX callback functions of Thread.h are hidden
90    
91      * MIDI driver:
92        - dispatch bank select (MSB and LSB) messages
93    
94      * audio driver:
95        - the ALSA audio output driver parameters now reflect the correct
96          parameter value ranges for the respective selected sound card
97          (patch by Till Wimmer, a bit fixed and extended)
98    
99      * Gigasampler format engine:
100        - if a filter is used and EG2 finishes before EG1, let the voice
101          die when EG2 has finished (this fixes a problem with clicks and
102          voice starvation for some gigs)
103        - playback is no longer disabled during instrument loading
104        - all notes playing on a channel that changes its instrument keep
105          playing with the old instrument until they get a note off
106          command
107        - EG fix: a release value of zero could cause noises or crash
108        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
109        - EG fine tuning: when attack is zero the EG starts at a level
110          above max sustain level, which means that there is a decay phase
111          even if sustain is 100%
112        - more EG fixes: the level could sometimes go below zero and cause
113          noises or crashes
114        - minor fix of EGDecay (patch by Toshi Nagata)
115        - fixed compiler error when --enable-override-filter-type was
116          supplied to the configure script (fixes #46)
117        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
118          instead of a fix value
119        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
120          127 (solo mode) only kill voices if the respective mode really
121          changed
122    
123      * LSCP server:
124        - fixed compile time error for old Bison versions
125          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
126        - parser now supports extended ASCII character set
127          (up to ASCII code 255, i.e. includes now umlauts and accents)
128        - filename arguments in LSCP commands now allow to use escape
129          sequences, that is directly literal as one of: \', \", \\, \n, \r,
130          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
131          code value like \xf2) (fixes bug #24)
132        - the following LSCP commands now also support escape sequences for at
133          least one of their text-based parameters (i.e. name, description):
134          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
135          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
136          "SET DB_INSTRUMENT_DIRECTORY NAME",
137          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
138          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
139          "FIND DB_INSTRUMENT_DIRECTORIES"
140        - returns verbose syntax errors (line and column where syntax error
141          occured, the unexpected character and the actually expected, possible
142          character(s), the latter only if less than 5 possibilities)
143        - made sure that LSCP syntax is not affected by gigedit locale
144          settings
145        - bugfix regarding strings parameter lists: all comma separated lists
146          of strings were treated as being one string containing commas
147          (fixes #57)
148    
149      * Bug fixes:
150        - fixed crash occurring on certain LSCP scripts (Bug 39)
151        - another thread safety fix for lscp "load engine" and "set
152          channel audio output device"
153        - fixed a crash which occurs when reassigning the same engine
154          on a sampler channel with connected MIDI device
155        - fixed a crash which occurs when changing the number of ports of a MIDI
156          device connected to a sampler channel to number less then or equal
157          to the index of the port to which the sampler channel is connected.
158        - The previous bindings were not been disconnected when altering
159          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
160          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
161        - The active stream/voice count statistic was incorrect.
162        - notification events were not been sent for some sampler
163          channel changes
164        - added default min and max values to restrict the number of allowed
165          audio output channels and MIDI input ports
166        - the connection to the PCM interface is now closed when destroying
167          an audio output device
168        - files with slash in their path or filename could not be loaded
169    
170      * test cases:
171        - updated and fixed (haven't been touched in a while)
172    
173    Version 0.4.0 (24 November 2006)
174    
175      * packaging changes:
176        - changed deprecated copyright attribute to license; added ldconfig
177          to post-(un)install steps; added devel package for liblinuxsampler;
178          to linuxsampler.spec (RPM)
179        - install necessary development header files for allowing 3rd party
180          applications to link against liblinuxsampler
181        - liblinuxsampler's API documentation can be generated with 'make docs'
182          (Doxygen required)
183        - added benchmark to automatically detect the best triangle LFO
184          implementation (currently either an integer math solution or a
185          di-harmonic approximation), automatic detection can be overriden
186          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
187          configure script argument though (mandatory for cross-compilation)
188        - do not automatically pick optimized gcc flags if the user already
189          provided some on his own (as CXXFLAGS)
190        - added compile time option to disable processing of All-Notes-Off MIDI
191          messages
192        - added compile time options to allow disabling the various audio and
193          MIDI drivers
194        - fixed automatic GCC CPU switch detection on PPC
195          (patch by Ebrahim Mayat)
196    
197      * Gigasampler format engine:
198        - extensive synthesis optimization
199          (reimplementation of EGs and LFO(s), removed synthesis parameter
200          prerendering and the synthesis parameter matrix in general, splitting
201          each audio fragment into subfragments now where each subfragment uses
202          constant pitch and filter coefficients. The volume coefficient is
203          linearly interpolated inside a subfragment, unless
204          --disable-interpolate-volume is set.)
205        - fine tuning of the EG modulation parameters
206        - improved filter cutoff calculation by adding support for the
207          following gig parameters: Cutoff freq (used when no cutoff
208          controller is defined), Control invert, Minimum cutoff, Velocity
209          curve and Velocity range. The keyboard tracking now scales
210          cutoff frequency instead of resonance.
211        - added support for gig parameter Resonance.
212        - fixed bug in sysex handling (patch by Juan Linietsky)
213        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
214          which can be overridden with --enable-global-attenuation
215        - EG fixes: made the length of "attack hold" stage more
216          accurate. Release stage can now start before attack stage
217          ends. Cancel release didn't work when sustain was zero. Attack
218          time now has a minimal value to prevent clicks.
219        - fixed pitch changes larger than one octave
220        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
221        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
222          all modes can be altered via standard GM messages, that is CC5 for
223          altering portamento time, CC65 for enabling / disabling portamento
224          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
225        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
226          parameter) and crossfade
227        - added support for the "attenuation controller threshold" gig
228          parameter
229        - added smoothing of volume changes caused by control change
230          messages
231        - sample loop parameters are now taken from the DimensionRegion
232          instead of the wave chunk
233        - fixed keyswitching for v3 gigs with a number of keyswitch splits
234          not equal to a power of two
235        - reimplementation of the filter algorithm. The new filter is more
236          accurate and supports all gig filter types, including bandreject
237          and lowpass turbo.
238        - real support for 24 bit samples - samples are not truncated to
239          16 bits anymore
240        - support for aftertouch (channel pressure, not polyphonic
241          aftertouch)
242        - LFO1 behaviour fixed (dampening from max volume instead of
243          amplifying from 0)
244    
245      * LSCP server:
246        - fixed application exit on broken pipe error (fixes bug #20)
247        - fixed the notification messages delay due to lack of
248          network activity (fixes bug #26)
249        - fixed parser bug which occured on space(s) within device parameters
250          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
251    
252      * audio driver:
253        - added aRts audio output driver (by no means RT safe)
254    
255      * MIDI driver:
256        - fixed legacy sysex code which caused dispatching of MIDI SysEx
257          messages several times instead of once
258        - API extension for MIDI drivers which already supply exact time stamps
259          for events (i.e. for offline rendering based MIDI drivers)
260        - added checks for bad MIDI data
261    
262      * linuxsampler application:
263        - show available sampler engine types on startup
264    
265      * general changes:
266        - support for muting sampler channels and solo mode of the same, two new
267          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
268          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
269          introduced for this, the behavior is the same like on a mixer console
270          (patch by Grigor Iliev, a bit adjusted). Also added configure option
271          --enable-process-muted-channels which can be used to enable the
272          processing of muted channels.
273        - support for sostenuto pedal
274        - support for monitoring the total number of active voices
275          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
276          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
277        - fixed some memory management errors
278        - fixed some concurrency problems that could lead to crashes when
279          LSCP commands were executed
280        - fixed crash when instrument loading failed previously on the same
281          sampler channel (fixes bug #36)
282    
283    Version 0.3.3 (15 July 2005)
284    
285      * packaging changes:
286        - fixed compilation with gcc 4.0
287    
288      * Gigasampler format engine:
289        - LFO preprocessing was performed even though the respective LFO was
290          disabled by the instrument patch (minor efficiency fix)
291        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
292          for volume ramp downs in the same fragment (needed for current voice
293          stealing implementation) then simply inform the user with a warning
294          about possible click sounds and reduce the volume ramp down
295          appropriately instead of cancelling the audio device connection
296    
297    Version 0.3.2 (24 June 2005)
298    
299      * packaging changes:
300      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
301        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
302      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
303        './configure --disable-asm' (definitely not recommended)        './configure --disable-asm' (definitely not recommended)
304        - fixed 'make dist' rule to include all necessary files
305        - require automake (>= 1.5) for 'make -f Makefile.cvs'
306          (due to 'dist-bzip2' automake option)
307    
308    * Gigasampler format engine:    * Gigasampler format engine:
309      - support for the gig parameters for "release velocity response" curves      - support for the gig parameters for "release velocity response" curves
# Line 12  Version CVS HEAD (?) Line 311  Version CVS HEAD (?)
311      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
312        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
313        note-off velocity.        note-off velocity.
314      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
315              (fixes crash and endless loop caused by voice stealing)
316        - don't reset scale tuning on instrument or audio output device change
317        - handle key group conflicts right at the beginning of each fragment
318          instead of when the respective voice is actually launched
319          (fixes undefined behavior if stolen voices belonged to a key group -
320          this case was followed by a "killed voice survived" error message)
321        - fixed minor issue with null/silence samples
322          (those stole voices even though they don't need a voice at all which
323          resulted in "voice stealing didn't work out" messages)
324        - don't reset volume, pan, pitch and MIDI controller values on
325          instrument or audio output device change
326    
327    * LSCP server:    * LSCP server:
328      - fixed some crashes (patch by Grigor Iliev, fixes #19)        - fixed some crashes (patch by Grigor Iliev, fixes #19)
329        - fixed LSCP event "CHANNEL_INFO" notification
330          (e.g. did not notify on volume changes or MIDI program change events)
331    
332      * linuxsampler application:
333        - added command line parameters --lscp-addr and --lscp-port to override
334          default IP address and port of LSCP server
335    
336  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
337    

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