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revision 649 by schoenebeck, Wed Jun 15 00:01:28 2005 UTC revision 1502 by senoner, Wed Nov 21 07:29:52 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        - added autoconf checks for MS Windows
8    
9      * general changes:
10        - bugfix: the thread used by an editor plugin didn't die when the
11          editor closed
12        - bugfix: Ringbuffer.h:
13          fill_write_space_with_null() did not zero out all the space
14          operator--() did not apply size_mask after decrementing the read_ptr
15          DEFAULT_WRAP_ELEMENTS set to 0 in order to avoid problems with
16            the _NonVolatileReader functions.
17         - bugfix: Stream.h: added a missing divide by BytesPerSample in GetWriteSpace()
18           since this function is currently only used in the stream's
19           qsort() compare function, it didn't trigger any bugs
20         Resampler.h, Synthesizer.h:
21           cubic interpolation now works in 24bit mode too
22           faster method to read 24bit words on little endian machines (x86):
23           replaced 3 byte reads + shifts with a 1 unaligned 32bit read and shift
24         Experimental support for MS Windows (MIDI input via MME, AUDIO output via ASIO)
25    
26      * AUDIO driver:
27        - added Windows ASIO low latency audio driver
28    
29      * MIDI driver:
30        - added MME Windows MIDI driver
31    
32      * LSCP server:
33        - added support for Windows style path / filenames, however with
34          forward slash path separators instead of backslash
35          (i.e. "C:/foo/bar.gig")
36        - allow naughty liblscp to send non-string device parameters within
37          apostrophes as well
38    
39    Version 0.5.0 (15 October 2007)
40    
41      * packaging changes:
42        - config.h is not going to be installed along with liblinuxsampler's
43          API header files anymore
44        - only the API relevant header (and source) files will be exported to
45          the Doxygen API documentation (explicitly listed in Doxyfile.in)
46        - added completely new XCode project files for Mac OSX which is now
47          capable to execute our autoconf environment, thus no need anymore
48          to maintain the compile time configuration file (osx/version.h) for
49          OSX manually (patch by Toshi Nagata)
50        - fixed buggy boolean --enable-foo / --disable-foo configure script
51          parameters
52        - global.h now only covers global definitions that are needed for the
53          C++ API header files, all implementation internal global definitions
54          are now in global_private.h
55        - atomic.h is not exposed to the C++ API anymore
56        - no need to include config.h anymore for using LS's API header files
57        - fixed warnings in API doc generation
58    
59      * general changes:
60        - replaced the old, confusing MIDI program change mechanism by a
61          flexible MIDI instrument mapper which allows to map arbitrary
62          (MIDI bank, MIDI program) pairs with arbitrary
63          (engine type, instrument file, file index) triplets which will be
64          loaded on the respective channel when such MIDI program change
65          messages arrive, beside that, each entry allows to define a life-time
66          strategy for the instrument, so the user can define whether the
67          instrument should i.e. be permanently loaded (to be able to switch
68          quickly among sounds) or i.e. loaded just on demand when the
69          respective program change arrives (to safe RAM space), as well as a
70          global volume factor for each entry, so the user can adjust the volume
71          dynamic of his mapped instrument collection without having to modify
72          the instrument files, also one can manage arbitrary amount of such
73          MIDI instrument maps and assign each sampler channel individually
74          a certain map, so that i.e. separation of normal instruments and
75          drumkits is possible
76        - new notification events for tracking changes to audio/MIDI devices,
77          MIDI instrument maps, MIDI instruments, FX sends, global volume.
78        - sampler was limited to load max. 200 instruments in the background
79          due to a constant size RingBuffer FIFO which is now replaced by a
80          dynamic (unlimited) size std::list FIFO
81        - added FX sends, these allow to route audio signals to arbitrary audio
82          output channels for being processed by external effect processors
83          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
84          controllers
85        - global (sampler wide) volume can now be controlled at runtime
86        - Implemented new, improved notification system
87        - fixed compilation errors regarding OSX
88          (patch by Toshi Nagata)
89        - implemented instruments database
90        - added support for escape sequences to the instruments database
91        - added highly experimental support for on-the-fly instrument editing
92          within the sampler's process (by using instrument editor plugins),
93          you'll notice the new "Registered instrument editors:" message on
94          startup, added a new LSCP command:
95          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
96          to spawn a matching instrument editor for the instrument on the
97          given sampler channel, the plugin path can be overridden at compile
98          time with ./configure --enable-plugin-dir=/some/dir
99        - added experimental code for synchronizing instrument editors hosted
100          in the sampler's process to safely edit instruments while playing
101          without a crash (hopefully) by either suspending single regions
102          wherever possible or if unavoidable whole engine(s)
103        - fixed several issues in fundamental "Thread" class: set scheduling
104          policy and priority on thread level, set a minimum stack size for
105          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
106          threads simply inherited properties of starting thread instead of
107          setting their own policy and priority
108        - minor fix in our automatic stack trace mechanism on crashes, the
109          main process did not wait for the stack trace process to finish
110          its output
111        - fixed some minor memory leaks
112        - reenabled assembly features support, at the moment only for
113          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
114        - minor assembly fix in x86 features detection (don't use the PIC
115          register, to avoid relocations in the text segment at runtime)
116        - POSIX callback functions of Thread.h are hidden
117    
118      * MIDI driver:
119        - dispatch bank select (MSB and LSB) messages
120    
121      * audio driver:
122        - the ALSA audio output driver parameters now reflect the correct
123          parameter value ranges for the respective selected sound card
124          (patch by Till Wimmer, a bit fixed and extended)
125    
126      * Gigasampler format engine:
127        - if a filter is used and EG2 finishes before EG1, let the voice
128          die when EG2 has finished (this fixes a problem with clicks and
129          voice starvation for some gigs)
130        - playback is no longer disabled during instrument loading
131        - all notes playing on a channel that changes its instrument keep
132          playing with the old instrument until they get a note off
133          command
134        - EG fix: a release value of zero could cause noises or crash
135        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
136        - EG fine tuning: when attack is zero the EG starts at a level
137          above max sustain level, which means that there is a decay phase
138          even if sustain is 100%
139        - more EG fixes: the level could sometimes go below zero and cause
140          noises or crashes
141        - minor fix of EGDecay (patch by Toshi Nagata)
142        - fixed compiler error when --enable-override-filter-type was
143          supplied to the configure script (fixes #46)
144        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
145          instead of a fix value
146        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
147          127 (solo mode) only kill voices if the respective mode really
148          changed
149    
150      * LSCP server:
151        - fixed compile time error for old Bison versions
152          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
153        - parser now supports extended ASCII character set
154          (up to ASCII code 255, i.e. includes now umlauts and accents)
155        - filename arguments in LSCP commands now allow to use escape
156          sequences, that is directly literal as one of: \', \", \\, \n, \r,
157          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
158          code value like \xf2) (fixes bug #24)
159        - the following LSCP commands now also support escape sequences for at
160          least one of their text-based parameters (i.e. name, description):
161          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
162          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
163          "SET DB_INSTRUMENT_DIRECTORY NAME",
164          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
165          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
166          "FIND DB_INSTRUMENT_DIRECTORIES"
167        - returns verbose syntax errors (line and column where syntax error
168          occured, the unexpected character and the actually expected, possible
169          character(s), the latter only if less than 5 possibilities)
170        - made sure that LSCP syntax is not affected by gigedit locale
171          settings
172        - bugfix regarding strings parameter lists: all comma separated lists
173          of strings were treated as being one string containing commas
174          (fixes #57)
175    
176      * Bug fixes:
177        - fixed crash occurring on certain LSCP scripts (Bug 39)
178        - another thread safety fix for lscp "load engine" and "set
179          channel audio output device"
180        - fixed a crash which occurs when reassigning the same engine
181          on a sampler channel with connected MIDI device
182        - fixed a crash which occurs when changing the number of ports of a MIDI
183          device connected to a sampler channel to number less then or equal
184          to the index of the port to which the sampler channel is connected.
185        - The previous bindings were not been disconnected when altering
186          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
187          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
188        - The active stream/voice count statistic was incorrect.
189        - notification events were not been sent for some sampler
190          channel changes
191        - added default min and max values to restrict the number of allowed
192          audio output channels and MIDI input ports
193        - the connection to the PCM interface is now closed when destroying
194          an audio output device
195        - files with slash in their path or filename could not be loaded
196    
197      * test cases:
198        - updated and fixed (haven't been touched in a while)
199    
200    Version 0.4.0 (24 November 2006)
201    
202      * packaging changes:
203        - changed deprecated copyright attribute to license; added ldconfig
204          to post-(un)install steps; added devel package for liblinuxsampler;
205          to linuxsampler.spec (RPM)
206        - install necessary development header files for allowing 3rd party
207          applications to link against liblinuxsampler
208        - liblinuxsampler's API documentation can be generated with 'make docs'
209          (Doxygen required)
210        - added benchmark to automatically detect the best triangle LFO
211          implementation (currently either an integer math solution or a
212          di-harmonic approximation), automatic detection can be overriden
213          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
214          configure script argument though (mandatory for cross-compilation)
215        - do not automatically pick optimized gcc flags if the user already
216          provided some on his own (as CXXFLAGS)
217        - added compile time option to disable processing of All-Notes-Off MIDI
218          messages
219        - added compile time options to allow disabling the various audio and
220          MIDI drivers
221        - fixed automatic GCC CPU switch detection on PPC
222          (patch by Ebrahim Mayat)
223    
224      * Gigasampler format engine:
225        - extensive synthesis optimization
226          (reimplementation of EGs and LFO(s), removed synthesis parameter
227          prerendering and the synthesis parameter matrix in general, splitting
228          each audio fragment into subfragments now where each subfragment uses
229          constant pitch and filter coefficients. The volume coefficient is
230          linearly interpolated inside a subfragment, unless
231          --disable-interpolate-volume is set.)
232        - fine tuning of the EG modulation parameters
233        - improved filter cutoff calculation by adding support for the
234          following gig parameters: Cutoff freq (used when no cutoff
235          controller is defined), Control invert, Minimum cutoff, Velocity
236          curve and Velocity range. The keyboard tracking now scales
237          cutoff frequency instead of resonance.
238        - added support for gig parameter Resonance.
239        - fixed bug in sysex handling (patch by Juan Linietsky)
240        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
241          which can be overridden with --enable-global-attenuation
242        - EG fixes: made the length of "attack hold" stage more
243          accurate. Release stage can now start before attack stage
244          ends. Cancel release didn't work when sustain was zero. Attack
245          time now has a minimal value to prevent clicks.
246        - fixed pitch changes larger than one octave
247        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
248        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
249          all modes can be altered via standard GM messages, that is CC5 for
250          altering portamento time, CC65 for enabling / disabling portamento
251          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
252        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
253          parameter) and crossfade
254        - added support for the "attenuation controller threshold" gig
255          parameter
256        - added smoothing of volume changes caused by control change
257          messages
258        - sample loop parameters are now taken from the DimensionRegion
259          instead of the wave chunk
260        - fixed keyswitching for v3 gigs with a number of keyswitch splits
261          not equal to a power of two
262        - reimplementation of the filter algorithm. The new filter is more
263          accurate and supports all gig filter types, including bandreject
264          and lowpass turbo.
265        - real support for 24 bit samples - samples are not truncated to
266          16 bits anymore
267        - support for aftertouch (channel pressure, not polyphonic
268          aftertouch)
269        - LFO1 behaviour fixed (dampening from max volume instead of
270          amplifying from 0)
271    
272      * LSCP server:
273        - fixed application exit on broken pipe error (fixes bug #20)
274        - fixed the notification messages delay due to lack of
275          network activity (fixes bug #26)
276        - fixed parser bug which occured on space(s) within device parameters
277          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
278    
279      * audio driver:
280        - added aRts audio output driver (by no means RT safe)
281    
282      * MIDI driver:
283        - fixed legacy sysex code which caused dispatching of MIDI SysEx
284          messages several times instead of once
285        - API extension for MIDI drivers which already supply exact time stamps
286          for events (i.e. for offline rendering based MIDI drivers)
287        - added checks for bad MIDI data
288    
289      * linuxsampler application:
290        - show available sampler engine types on startup
291    
292      * general changes:
293        - support for muting sampler channels and solo mode of the same, two new
294          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
295          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
296          introduced for this, the behavior is the same like on a mixer console
297          (patch by Grigor Iliev, a bit adjusted). Also added configure option
298          --enable-process-muted-channels which can be used to enable the
299          processing of muted channels.
300        - support for sostenuto pedal
301        - support for monitoring the total number of active voices
302          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
303          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
304        - fixed some memory management errors
305        - fixed some concurrency problems that could lead to crashes when
306          LSCP commands were executed
307        - fixed crash when instrument loading failed previously on the same
308          sampler channel (fixes bug #36)
309    
310    Version 0.3.3 (15 July 2005)
311    
312      * packaging changes:
313        - fixed compilation with gcc 4.0
314    
315      * Gigasampler format engine:
316        - LFO preprocessing was performed even though the respective LFO was
317          disabled by the instrument patch (minor efficiency fix)
318        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
319          for volume ramp downs in the same fragment (needed for current voice
320          stealing implementation) then simply inform the user with a warning
321          about possible click sounds and reduce the volume ramp down
322          appropriately instead of cancelling the audio device connection
323    
324    Version 0.3.2 (24 June 2005)
325    
326      * packaging changes:
327      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
328        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
329      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
330        './configure --disable-asm' (definitely not recommended)        './configure --disable-asm' (definitely not recommended)
331        - fixed 'make dist' rule to include all necessary files
332        - require automake (>= 1.5) for 'make -f Makefile.cvs'
333          (due to 'dist-bzip2' automake option)
334    
335    * Gigasampler format engine:    * Gigasampler format engine:
336      - 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 338  Version CVS HEAD (?)
338      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
339        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
340        note-off velocity.        note-off velocity.
341      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
342              (fixes crash and endless loop caused by voice stealing)
343        - don't reset scale tuning on instrument or audio output device change
344        - handle key group conflicts right at the beginning of each fragment
345          instead of when the respective voice is actually launched
346          (fixes undefined behavior if stolen voices belonged to a key group -
347          this case was followed by a "killed voice survived" error message)
348        - fixed minor issue with null/silence samples
349          (those stole voices even though they don't need a voice at all which
350          resulted in "voice stealing didn't work out" messages)
351        - don't reset volume, pan, pitch and MIDI controller values on
352          instrument or audio output device change
353    
354    * LSCP server:    * LSCP server:
355      - fixed some crashes (patch by Grigor Iliev, fixes #19)        - fixed some crashes (patch by Grigor Iliev, fixes #19)
356        - fixed LSCP event "CHANNEL_INFO" notification
357          (e.g. did not notify on volume changes or MIDI program change events)
358    
359      * linuxsampler application:
360        - added command line parameters --lscp-addr and --lscp-port to override
361          default IP address and port of LSCP server
362    
363  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
364    

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