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Revision 1248 - (hide annotations) (download)
Fri Jun 22 10:10:06 2007 UTC (16 years, 9 months ago) by persson
File size: 13735 byte(s)
* fixed some minor memory leaks

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 1221 - fixed several issues in fundamental "Thread" class: set scheduling
52     policy and priority on thread level, set a minimum stack size for
53     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
54     threads simply inherited properties of starting thread instead of
55     setting their own policy and priority
56 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
57     main process did not wait for the stack trace process to finish
58     its output
59 persson 1248 - fixed some minor memory leaks
60 schoenebeck 947
61     * MIDI driver:
62     - dispatch bank select (MSB and LSB) messages
63    
64 schoenebeck 1049 * audio driver:
65     - the ALSA audio output driver parameters now reflect the correct
66     parameter value ranges for the respective selected sound card
67     (patch by Till Wimmer, a bit fixed and extended)
68    
69 persson 951 * Gigasampler format engine:
70     - if a filter is used and EG2 finishes before EG1, let the voice
71     die when EG2 has finished (this fixes a problem with clicks and
72     voice starvation for some gigs)
73 persson 1038 - playback is no longer disabled during instrument loading
74     - all notes playing on a channel that changes its instrument keep
75     playing with the old instrument until they get a note off
76     command
77 persson 1039 - EG fix: a release value of zero could cause noises or crash
78 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
79 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
80     above max sustain level, which means that there is a decay phase
81     even if sustain is 100%
82 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
83     noises or crashes
84 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
85 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
86     supplied to the configure script (fixes #46)
87 persson 951
88 schoenebeck 1244 * LSCP server:
89     - fixed compile time error for old Bison versions
90     (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
91 schoenebeck 1245 - parser now supports extended ASCII character set
92     (up to ASCII code 255, i.e. includes now umlauts and accents)
93     - filename arguments in LSCP commands now allow to use escape
94     sequences, that is directly literal as one of: \', \", \\, \n, \r,
95     \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
96     code value like \xf2) (fixes bug #24)
97 schoenebeck 1244
98 iliev 959 * Bug fixes:
99     - fixed crash occurring on certain LSCP scripts (Bug 39)
100 persson 1038 - another thread safety fix for lscp "load engine" and "set
101     channel audio output device"
102 iliev 959
103 schoenebeck 1221 * test cases:
104     - updated and fixed (haven't been touched in a while)
105    
106 schoenebeck 937 Version 0.4.0 (24 November 2006)
107 persson 696
108 schoenebeck 697 * packaging changes:
109 capela 868 - changed deprecated copyright attribute to license; added ldconfig
110     to post-(un)install steps; added devel package for liblinuxsampler;
111     to linuxsampler.spec (RPM)
112 schoenebeck 697 - install necessary development header files for allowing 3rd party
113     applications to link against liblinuxsampler
114     - liblinuxsampler's API documentation can be generated with 'make docs'
115     (Doxygen required)
116 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
117     implementation (currently either an integer math solution or a
118     di-harmonic approximation), automatic detection can be overriden
119     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
120     configure script argument though (mandatory for cross-compilation)
121 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
122     provided some on his own (as CXXFLAGS)
123 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
124     messages
125 schoenebeck 852 - added compile time options to allow disabling the various audio and
126     MIDI drivers
127 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
128     (patch by Ebrahim Mayat)
129 schoenebeck 697
130 persson 696 * Gigasampler format engine:
131 schoenebeck 738 - extensive synthesis optimization
132     (reimplementation of EGs and LFO(s), removed synthesis parameter
133     prerendering and the synthesis parameter matrix in general, splitting
134     each audio fragment into subfragments now where each subfragment uses
135 persson 830 constant pitch and filter coefficients. The volume coefficient is
136     linearly interpolated inside a subfragment, unless
137     --disable-interpolate-volume is set.)
138 persson 696 - fine tuning of the EG modulation parameters
139 persson 729 - improved filter cutoff calculation by adding support for the
140     following gig parameters: Cutoff freq (used when no cutoff
141     controller is defined), Control invert, Minimum cutoff, Velocity
142 persson 791 curve and Velocity range. The keyboard tracking now scales
143     cutoff frequency instead of resonance.
144 persson 877 - added support for gig parameter Resonance.
145 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
146 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
147     which can be overridden with --enable-global-attenuation
148 persson 783 - EG fixes: made the length of "attack hold" stage more
149     accurate. Release stage can now start before attack stage
150 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
151     time now has a minimal value to prevent clicks.
152 persson 799 - fixed pitch changes larger than one octave
153 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
154     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
155     all modes can be altered via standard GM messages, that is CC5 for
156     altering portamento time, CC65 for enabling / disabling portamento
157     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
158 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
159     parameter) and crossfade
160 persson 831 - added support for the "attenuation controller threshold" gig
161     parameter
162 persson 832 - added smoothing of volume changes caused by control change
163     messages
164 persson 865 - sample loop parameters are now taken from the DimensionRegion
165     instead of the wave chunk
166     - fixed keyswitching for v3 gigs with a number of keyswitch splits
167     not equal to a power of two
168 persson 877 - reimplementation of the filter algorithm. The new filter is more
169     accurate and supports all gig filter types, including bandreject
170     and lowpass turbo.
171 persson 903 - real support for 24 bit samples - samples are not truncated to
172     16 bits anymore
173     - support for aftertouch (channel pressure, not polyphonic
174     aftertouch)
175 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
176     amplifying from 0)
177 persson 696
178 schoenebeck 711 * LSCP server:
179     - fixed application exit on broken pipe error (fixes bug #20)
180 iliev 793 - fixed the notification messages delay due to lack of
181     network activity (fixes bug #26)
182 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
183     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
184 schoenebeck 711
185 schoenebeck 838 * audio driver:
186     - added aRts audio output driver (by no means RT safe)
187    
188 schoenebeck 775 * MIDI driver:
189     - fixed legacy sysex code which caused dispatching of MIDI SysEx
190     messages several times instead of once
191 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
192     for events (i.e. for offline rendering based MIDI drivers)
193 persson 922 - added checks for bad MIDI data
194 schoenebeck 775
195 schoenebeck 900 * linuxsampler application:
196     - show available sampler engine types on startup
197    
198 schoenebeck 705 * general changes:
199     - support for muting sampler channels and solo mode of the same, two new
200     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
201     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
202     introduced for this, the behavior is the same like on a mixer console
203 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
204     --enable-process-muted-channels which can be used to enable the
205     processing of muted channels.
206 iliev 777 - support for sostenuto pedal
207 iliev 779 - support for monitoring the total number of active voices
208 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
209     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
210 persson 835 - fixed some memory management errors
211 persson 841 - fixed some concurrency problems that could lead to crashes when
212     LSCP commands were executed
213 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
214     sampler channel (fixes bug #36)
215 schoenebeck 705
216 schoenebeck 692 Version 0.3.3 (15 July 2005)
217 schoenebeck 686
218     * packaging changes:
219     - fixed compilation with gcc 4.0
220    
221 schoenebeck 687 * Gigasampler format engine:
222     - LFO preprocessing was performed even though the respective LFO was
223     disabled by the instrument patch (minor efficiency fix)
224 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
225     for volume ramp downs in the same fragment (needed for current voice
226     stealing implementation) then simply inform the user with a warning
227     about possible click sounds and reduce the volume ramp down
228     appropriately instead of cancelling the audio device connection
229 schoenebeck 687
230 schoenebeck 677 Version 0.3.2 (24 June 2005)
231 schoenebeck 609
232     * packaging changes:
233     - updated autotools build files to compile on OS X
234     (conditional compilation of CoreMIDI and MidiShare drivers)
235 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
236     './configure --disable-asm' (definitely not recommended)
237 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
238     - require automake (>= 1.5) for 'make -f Makefile.cvs'
239     (due to 'dist-bzip2' automake option)
240 schoenebeck 649
241     * Gigasampler format engine:
242     - support for the gig parameters for "release velocity response" curves
243     - fine tuning of the EGADSR envelope
244     - volume of release triggered samples now depends on note-on velocity,
245     note length and gig parameter "release trigger decay" instead of
246     note-off velocity.
247 schoenebeck 663 - revised voice stealing
248     (fixes crash and endless loop caused by voice stealing)
249 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
250 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
251     instead of when the respective voice is actually launched
252     (fixes undefined behavior if stolen voices belonged to a key group -
253     this case was followed by a "killed voice survived" error message)
254 schoenebeck 669 - fixed minor issue with null/silence samples
255     (those stole voices even though they don't need a voice at all which
256     resulted in "voice stealing didn't work out" messages)
257 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
258     instrument or audio output device change
259 schoenebeck 654
260 schoenebeck 620 * LSCP server:
261 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
262 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
263 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
264 schoenebeck 609
265 schoenebeck 668 * linuxsampler application:
266     - added command line parameters --lscp-addr and --lscp-port to override
267     default IP address and port of LSCP server
268    
269 schoenebeck 579 Version 0.3.1 (24 May 2005)
270    
271     * initial release

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