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Revision 1321 - (hide annotations) (download)
Tue Sep 4 01:12:49 2007 UTC (12 years, 3 months ago) by schoenebeck
File size: 15522 byte(s)
* added highly 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)
* disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
  instead of fix values
* removed legacy Makefiles in meanwhile deleted src/lib directory and its
  subdirectories
* bumped version to 0.4.0.7cvs

1 schoenebeck 947 Version CVS HEAD (?)
2    
3 schoenebeck 1065 * packaging changes:
4 schoenebeck 1212 - config.h is not going to be installed along with liblinuxsampler's
5     API header files anymore
6 schoenebeck 1065 - only the API relevant header (and source) files will be exported to
7     the Doxygen API documentation (explicitly listed in Doxyfile.in)
8 schoenebeck 1175 - added completely new XCode project files for Mac OSX which is now
9     capable to execute our autoconf environment, thus no need anymore
10     to maintain the compile time configuration file (osx/version.h) for
11     OSX manually (patch by Toshi Nagata)
12 schoenebeck 1065
13 schoenebeck 947 * general changes:
14     - replaced the old, confusing MIDI program change mechanism by a
15     flexible MIDI instrument mapper which allows to map arbitrary
16 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
17 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
18     loaded on the respective channel when such MIDI program change
19     messages arrive, beside that, each entry allows to define a life-time
20     strategy for the instrument, so the user can define whether the
21     instrument should i.e. be permanently loaded (to be able to switch
22     quickly among sounds) or i.e. loaded just on demand when the
23     respective program change arrives (to safe RAM space), as well as a
24     global volume factor for each entry, so the user can adjust the volume
25     dynamic of his mapped instrument collection without having to modify
26 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
27     MIDI instrument maps and assign each sampler channel individually
28     a certain map, so that i.e. separation of normal instruments and
29     drumkits is possible
30 iliev 1108 - new notification events for tracking changes to audio/MIDI devices,
31     MIDI instrument maps, MIDI instruments, FX sends, global volume.
32 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
33     due to a constant size RingBuffer FIFO which is now replaced by a
34     dynamic (unlimited) size std::list FIFO
35 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
36     output channels for being processed by external effect processors
37     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
38     controllers
39 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
40 iliev 1130 - Implemented new, improved notification system
41 schoenebeck 1149 - fixed compilation errors regarding OSX
42     (patch by Toshi Nagata)
43 iliev 1161 - implemented instruments database
44 schoenebeck 1212 - added highly experimental support for on-the-fly instrument editing
45     within the sampler's process (by using instrument editor plugins),
46     you'll notice the new "Registered instrument editors:" message on
47     startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
48     to spawn a matching instrument editor for the instrument on the
49     given sampler channel, the plugin path can be overridden at compile
50     time with ./configure --enable-plugin-dir=/some/dir
51 schoenebeck 1321 - added experimental code for synchronizing instrument editors hosted
52     in the sampler's process to safely edit instruments while playing
53     without a crash (hopefully) by either suspending single regions
54     wherever possible or if unavoidable whole engine(s)
55 schoenebeck 1221 - fixed several issues in fundamental "Thread" class: set scheduling
56     policy and priority on thread level, set a minimum stack size for
57     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
58     threads simply inherited properties of starting thread instead of
59     setting their own policy and priority
60 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
61     main process did not wait for the stack trace process to finish
62     its output
63 persson 1248 - fixed some minor memory leaks
64 schoenebeck 1259 - reenabled assembly features support, at the moment only for
65     enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
66 schoenebeck 1314 - minor assembly fix in x86 features detection (don't use the PIC
67     register, to avoid relocations in the text segment at runtime)
68 schoenebeck 947
69     * MIDI driver:
70     - dispatch bank select (MSB and LSB) messages
71    
72 schoenebeck 1049 * audio driver:
73     - the ALSA audio output driver parameters now reflect the correct
74     parameter value ranges for the respective selected sound card
75     (patch by Till Wimmer, a bit fixed and extended)
76    
77 persson 951 * Gigasampler format engine:
78     - if a filter is used and EG2 finishes before EG1, let the voice
79     die when EG2 has finished (this fixes a problem with clicks and
80     voice starvation for some gigs)
81 persson 1038 - playback is no longer disabled during instrument loading
82     - all notes playing on a channel that changes its instrument keep
83     playing with the old instrument until they get a note off
84     command
85 persson 1039 - EG fix: a release value of zero could cause noises or crash
86 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
87 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
88     above max sustain level, which means that there is a decay phase
89     even if sustain is 100%
90 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
91     noises or crashes
92 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
93 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
94     supplied to the configure script (fixes #46)
95 schoenebeck 1321 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
96     instead of a fix value
97 persson 951
98 schoenebeck 1244 * LSCP server:
99     - fixed compile time error for old Bison versions
100     (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
101 schoenebeck 1245 - parser now supports extended ASCII character set
102     (up to ASCII code 255, i.e. includes now umlauts and accents)
103     - filename arguments in LSCP commands now allow to use escape
104     sequences, that is directly literal as one of: \', \", \\, \n, \r,
105     \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
106     code value like \xf2) (fixes bug #24)
107 schoenebeck 1252 - returns verbose syntax errors (line and column where syntax error
108     occured, the unexpected character and the actually expected, possible
109     character(s), the latter only if less than 5 possibilities)
110 schoenebeck 1244
111 iliev 959 * Bug fixes:
112     - fixed crash occurring on certain LSCP scripts (Bug 39)
113 persson 1038 - another thread safety fix for lscp "load engine" and "set
114     channel audio output device"
115 iliev 1283 - fixed a crash which occurs when reassigning the same engine
116     on a sampler channel with connected MIDI device
117 iliev 1295 - fixed a crash which occurs when changing the number of ports of a MIDI
118     device connected to a sampler channel to number less then or equal
119     to the index of the port to which the sampler channel is connected.
120 iliev 1296 - The previous bindings were not been disconnected when altering
121     the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
122     unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
123 iliev 1297 - The active stream/voice count statistic was incorrect.
124 iliev 1298 - notification events were not been sent for some sampler
125     channel changes
126 iliev 1305 - added default min and max values to restrict the number of allowed
127     audio output channels and MIDI input ports
128 iliev 1306 - the connection to the PCM interface is now closed when destroying
129     an audio output device
130 iliev 959
131 schoenebeck 1221 * test cases:
132     - updated and fixed (haven't been touched in a while)
133    
134 schoenebeck 937 Version 0.4.0 (24 November 2006)
135 persson 696
136 schoenebeck 697 * packaging changes:
137 capela 868 - changed deprecated copyright attribute to license; added ldconfig
138     to post-(un)install steps; added devel package for liblinuxsampler;
139     to linuxsampler.spec (RPM)
140 schoenebeck 697 - install necessary development header files for allowing 3rd party
141     applications to link against liblinuxsampler
142     - liblinuxsampler's API documentation can be generated with 'make docs'
143     (Doxygen required)
144 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
145     implementation (currently either an integer math solution or a
146     di-harmonic approximation), automatic detection can be overriden
147     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
148     configure script argument though (mandatory for cross-compilation)
149 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
150     provided some on his own (as CXXFLAGS)
151 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
152     messages
153 schoenebeck 852 - added compile time options to allow disabling the various audio and
154     MIDI drivers
155 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
156     (patch by Ebrahim Mayat)
157 schoenebeck 697
158 persson 696 * Gigasampler format engine:
159 schoenebeck 738 - extensive synthesis optimization
160     (reimplementation of EGs and LFO(s), removed synthesis parameter
161     prerendering and the synthesis parameter matrix in general, splitting
162     each audio fragment into subfragments now where each subfragment uses
163 persson 830 constant pitch and filter coefficients. The volume coefficient is
164     linearly interpolated inside a subfragment, unless
165     --disable-interpolate-volume is set.)
166 persson 696 - fine tuning of the EG modulation parameters
167 persson 729 - improved filter cutoff calculation by adding support for the
168     following gig parameters: Cutoff freq (used when no cutoff
169     controller is defined), Control invert, Minimum cutoff, Velocity
170 persson 791 curve and Velocity range. The keyboard tracking now scales
171     cutoff frequency instead of resonance.
172 persson 877 - added support for gig parameter Resonance.
173 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
174 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
175     which can be overridden with --enable-global-attenuation
176 persson 783 - EG fixes: made the length of "attack hold" stage more
177     accurate. Release stage can now start before attack stage
178 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
179     time now has a minimal value to prevent clicks.
180 persson 799 - fixed pitch changes larger than one octave
181 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
182     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
183     all modes can be altered via standard GM messages, that is CC5 for
184     altering portamento time, CC65 for enabling / disabling portamento
185     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
186 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
187     parameter) and crossfade
188 persson 831 - added support for the "attenuation controller threshold" gig
189     parameter
190 persson 832 - added smoothing of volume changes caused by control change
191     messages
192 persson 865 - sample loop parameters are now taken from the DimensionRegion
193     instead of the wave chunk
194     - fixed keyswitching for v3 gigs with a number of keyswitch splits
195     not equal to a power of two
196 persson 877 - reimplementation of the filter algorithm. The new filter is more
197     accurate and supports all gig filter types, including bandreject
198     and lowpass turbo.
199 persson 903 - real support for 24 bit samples - samples are not truncated to
200     16 bits anymore
201     - support for aftertouch (channel pressure, not polyphonic
202     aftertouch)
203 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
204     amplifying from 0)
205 persson 696
206 schoenebeck 711 * LSCP server:
207     - fixed application exit on broken pipe error (fixes bug #20)
208 iliev 793 - fixed the notification messages delay due to lack of
209     network activity (fixes bug #26)
210 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
211     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
212 schoenebeck 711
213 schoenebeck 838 * audio driver:
214     - added aRts audio output driver (by no means RT safe)
215    
216 schoenebeck 775 * MIDI driver:
217     - fixed legacy sysex code which caused dispatching of MIDI SysEx
218     messages several times instead of once
219 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
220     for events (i.e. for offline rendering based MIDI drivers)
221 persson 922 - added checks for bad MIDI data
222 schoenebeck 775
223 schoenebeck 900 * linuxsampler application:
224     - show available sampler engine types on startup
225    
226 schoenebeck 705 * general changes:
227     - support for muting sampler channels and solo mode of the same, two new
228     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
229     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
230     introduced for this, the behavior is the same like on a mixer console
231 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
232     --enable-process-muted-channels which can be used to enable the
233     processing of muted channels.
234 iliev 777 - support for sostenuto pedal
235 iliev 779 - support for monitoring the total number of active voices
236 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
237     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
238 persson 835 - fixed some memory management errors
239 persson 841 - fixed some concurrency problems that could lead to crashes when
240     LSCP commands were executed
241 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
242     sampler channel (fixes bug #36)
243 schoenebeck 705
244 schoenebeck 692 Version 0.3.3 (15 July 2005)
245 schoenebeck 686
246     * packaging changes:
247     - fixed compilation with gcc 4.0
248    
249 schoenebeck 687 * Gigasampler format engine:
250     - LFO preprocessing was performed even though the respective LFO was
251     disabled by the instrument patch (minor efficiency fix)
252 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
253     for volume ramp downs in the same fragment (needed for current voice
254     stealing implementation) then simply inform the user with a warning
255     about possible click sounds and reduce the volume ramp down
256     appropriately instead of cancelling the audio device connection
257 schoenebeck 687
258 schoenebeck 677 Version 0.3.2 (24 June 2005)
259 schoenebeck 609
260     * packaging changes:
261     - updated autotools build files to compile on OS X
262     (conditional compilation of CoreMIDI and MidiShare drivers)
263 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
264     './configure --disable-asm' (definitely not recommended)
265 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
266     - require automake (>= 1.5) for 'make -f Makefile.cvs'
267     (due to 'dist-bzip2' automake option)
268 schoenebeck 649
269     * Gigasampler format engine:
270     - support for the gig parameters for "release velocity response" curves
271     - fine tuning of the EGADSR envelope
272     - volume of release triggered samples now depends on note-on velocity,
273     note length and gig parameter "release trigger decay" instead of
274     note-off velocity.
275 schoenebeck 663 - revised voice stealing
276     (fixes crash and endless loop caused by voice stealing)
277 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
278 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
279     instead of when the respective voice is actually launched
280     (fixes undefined behavior if stolen voices belonged to a key group -
281     this case was followed by a "killed voice survived" error message)
282 schoenebeck 669 - fixed minor issue with null/silence samples
283     (those stole voices even though they don't need a voice at all which
284     resulted in "voice stealing didn't work out" messages)
285 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
286     instrument or audio output device change
287 schoenebeck 654
288 schoenebeck 620 * LSCP server:
289 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
290 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
291 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
292 schoenebeck 609
293 schoenebeck 668 * linuxsampler application:
294     - added command line parameters --lscp-addr and --lscp-port to override
295     default IP address and port of LSCP server
296    
297 schoenebeck 579 Version 0.3.1 (24 May 2005)
298    
299     * initial release

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