1 Ann Hell Ex Machina TODO / Bug List
2 ===================================
7 * 1128: The output driver should change the global variable ss_frequency
8 if the underlying hardware doesn't support it. This can't be fixed just
9 by changing it there, because ss_song_convert_events() already used the
10 incorrect ss_frequency to calculate timings. Also, driver initialization
11 can't be moved to run before ss_song_convert_events() because it needs
12 ss_nchannels to be filled with a song-dependent default there.
17 * 1045: Line numbers in compiler errors are incorrectly reported when
18 inserting a block at the end of the line; when the block is inserted,
19 the linefeed has already been read and yyline incremented. This probably
20 occurs also with other directives.
21 * 1046: When a compilation error occurs inside a named block, the reported
22 line number is the one where the insertion occurs, not the one where the
24 * 1022: Add file name to compiler errors.
25 * 1087: When skipping time, MIDI should still write program changes
26 (and probably other messages) to the output device; that is, only
27 notes and time sleeping should be skipped.
28 * 1079: Move midiin.c functionality to main.c.
29 * 1093: External wave file filters (mpg321, flac, etc.) should be
30 configurable via the configuration file (needs #1074 closed).
31 * 1098: Immediate volumes are not implemented.
32 * 1097: Dotted notes are broken when more than one is used.
33 * 1108: Sometimes wave paging hangs. It seems to be related to generators
34 simultaneously using offsets far from each other, so the loaded page
35 keeps bouncing. Setting the page size to a big number (like the actual
36 default, 441000) seems to avoid it, as huge files are not usually used
37 more than once. If you are bit by this bug, set the page size to -1 with
38 the -b command line option.
43 * 1003: There should exist 'some kind' of effect for note volumes
44 to add a random variation, to add 'humanity'. This cannot
45 be a standard digital effect as it should be different
47 * 1005: Vibrato should be variable (from 'no-vibrato' to 'some-vibrato'
49 * 1010: Loop stretching ('stretch wave without pitch change to last
50 exactly N time units').
51 * 1042: Add multiple MIDI devices; a configuration file will match device
52 numbers to real addresses in /dev. Then each track in the song file could
53 have a command to set which MIDI device will the events be sent to.
54 * 1043: The same as the multiple MIDI devices, there should exist multiple
55 dsp devices. This way, a unique computer with more than one sound card
56 can output multichannel songs at a time.
57 * 1074: Add configuration file support.
58 * 1056: Note printing in midiin.c should also print chords.
59 * 1052: Add quantizations.
60 * 1096: ss_outdev.c should be its own project to be used from other
62 * 1094: Add code to specify note lengths in minutes and seconds.
63 * 1100: Add command-line options to mute a track.
64 * 1111: Add some directive to set the block random seed.
65 * 1112: Add some command line argument to set the block random seed.
66 * 1113: Add a special, non-automatic mark (named START or so) to be set
67 to the time offset where new tracks will start. This way, a song can be
68 made to start at a given offset, easing the creation of 'compilation' or
69 'full album' files. Of course, this mark should be redefinible.
70 * 1115: Add a special, automatic mark (named END or so) that will be
71 set on each track end if it's longer than the previous ones.
72 * 1116: Add a command line option to start playing on a given mark.
73 * 1117: The output driver initialization should return the number of
74 channels currently usable. This way, the output engine can remap all
75 channels to the existing ones.
76 * 1121: Add all distortion waveshapers as commented in 'foldback'.
77 * 1125: Now that notes can be altered, there must be a way to temporarily
78 set a note to 'natural' (becuadro).
79 * 1127: Rethink most of the softsynth engine to use pthreads. Each thread
80 could manage one channel, or each one a track.
81 * 1130: Add an end-of-track event, where effects can be reset (to stop
82 consuming CPU) and instruments released (to free memory).
87 * 1000: Convert current event queue to two event queues. The first
88 stage queue should store notes and the second note on / note off
89 events (Tue, 17 Aug 2004 12:00:00 +0200).
90 * 1004: Vibrato for generators (Fri, 13 Aug 2004 11:05:00 +0200).
91 * 1009: Set tempo from a sample loop ('set tempo so that this wave
92 will match exactly one/N measures') (Fri, 16 Aug 2004 18:08:00 +0200).
93 * 1013: Volume should be a command ('v', for example) and not be
94 inherited from previous notes. There should also be settable as
95 relative inc/decrements (as octaves) (Mon, 30 Aug 2004 14:37:59 +0200).
96 * 1014: doc/language.txt is severely outdated
97 (Mon, 30 Aug 2004 15:13:00 +0200)
98 * 1015: Upgrade build system (new config.sh, makefile.in, etc.).
99 (Thu, 09 Sep 2004 18:56:29 +0200).
100 * 1016: Integrate the new compiler (Sun, 12 Sep 2004 16:13:11 +0200).
101 * 1001: Generator should use queues of active / free generators.
102 (Sun, 17 Oct 2004 12:50:10 +0200).
103 * 1012: Portamento should not have a 'time', only a frequency
104 inc/decrement per time unit (Sun, 17 Oct 2004 13:18:04 +0200).
105 * 1018: The 'default' driver should not be bound to the first usable
106 one, but be a sequential try of all available drivers
107 (Thu, 11 Nov 2004 12:18:12 +0100).
108 * 1019: Add libartsc support (Thu, 11 Nov 2004 12:30:02 +0100).
109 * 1023: The SS_FRAMES lex/yacc token should be SS_MSECS, that is,
110 the compiler should not use frames but milliseconds
111 (Tue, 19 Apr 2005 20:05:46 +0200).
112 * 1024: The 'event1' and 'event2' stuff is ugly. It should be called,
113 respectively, 'note stream' (as it's, more or less, device independent)
114 and 'ss stream', which depends of softsynth, frames and such. In the
115 future, there could exist a 'midi stream' if MIDI output is supported
116 (Closed by #1025; Wed, 20 Apr 2005 17:30:31 +0200).
117 * 1033: SONG_EV_SS_NOTE won't work, because freq can't be calculated
118 on compilation time; instead, it should be a generic message
119 (Sat, 23 Apr 2005 10:52:35 +0200).
120 * 1026: Get rid of event.c and event.h (Sat, 23 Apr 2005 12:28:47 +0200).
121 * 1027: Get rid of effect.c and effect.h (Sat, 23 Apr 2005 12:28:51 +0200).
122 * 1031: Add lex/yacc code for processing absolute notes (A1, C#4, F&3)
123 (Sat, 23 Apr 2005 16:14:21 +0200).
124 * 1036: Unify song event types; ss_song should use the same event types
125 (Sun, 24 Apr 2005 10:29:22 +0200).
126 * 1035: The number of compiled tracks should be available somewhere
127 (Sun, 24 Apr 2005 10:35:19 +0200).
128 * 1037: ss_ins_frame() is flawed; as it directly mixes into frame[],
129 each intrument's ss effects affect the previous ones
130 (Mon, 25 Apr 2005 16:42:28 +0200).
131 * 1025: 'event1' has been moved to song.c (generic song event stream)
132 and 'event2' has been moved to ss_song.c (softsynth song event stream),
133 but due to almost all of ss_song.c being private, there is no way to
134 order the instruments and the effects to do anything until a way of
135 storing them is decided. So, project state is really critical now as
136 nothing works (last working version was 'cvs update -D 20050419').
137 (Mon, 25 Apr 2005 18:16:48 +0200).
138 * 1039: Volumes can't be set as integer numbers (0 and 1 should be valid)
139 (Mon, 25 Apr 2005 18:26:06 +0200).
140 * 1038: Comments can't be written inside extended commands
141 (Mon, 25 Apr 2005 18:31:55 +0200).
142 * 1021: Add line number to compiler errors (Mon, 25 Apr 2005 19:11:01 +0200).
143 * 1028: input.c should be ss_input.c (Wed, 27 Apr 2005 08:08:49 +0200).
144 * 1029: output.c should be ss_output.c (Wed, 27 Apr 2005 16:59:34 +0200).
145 * 1044: Line numbers in compiler errors don't work if the error is inside
146 a block or after inserting one
147 (Closed by #1045; Sun, 08 May 2005 10:22:43 +0200).
148 * 1047: Change generators to use just one volume and not a channel map
149 (Mon, 09 May 2005 16:24:13 +0200).
150 * 1049: Since the closing of #1047, the channel map in ss_ins is
151 completely broken (Tue, 10 May 2005 18:27:28 +0200).
152 * 1050: New ss_ins is flawed; volumes are never used
153 (Tue, 10 May 2005 18:41:30 +0200).
154 * 1041: Get rid of CHANNELS and always use dynamic structures or buffers
155 (Tue, 10 May 2005 19:40:52 +0200).
156 * 1048: ss_wave must be dynamic (Thu, 12 May 2005 19:23:13 +0200).
157 * 1032: Refactorize input, ss_gen and ss_ins to always use pointers to
158 struct ss_wave instead of copies of them (Thu, 12 May 2005 19:31:44 +0200).
159 * 1053: Create a tool that will read from a MIDI keyboard and print
160 the played keys on stdout (Closed by #1054;
161 Mon, 23 May 2005 17:04:54 +0200).
162 * 1054: Modify midiin.c to print currently played notes to stdout
163 (Mon, 23 May 2005 19:10:45 +0200).
164 * 1057: The Arts driver hangs forever (Sat, 28 May 2005 13:42:36 +0200).
165 * 1058: The new ss_outdev model seem to have problems with pipe buffer
166 sizes, at least with the OSS driver. Regardless of the number of bytes,
167 data is only read in 256 byte chunks (Sun, 29 May 2005 10:35:27 +0200).
168 * 1030: Refactorize the output system to always use a forked process
169 (Closed by #1062; Sun, 29 May 2005 10:44:39 +0200).
170 * 1061: Process the SONG_EV_SS_NOTE_ON_BY_TIME message, probably by
171 unifying it with the SONG_EV_NOTE_ON (Mon, 30 May 2005 17:22:21 +0200).
172 * 1011: Loop matching ('change wave pitch to last exactly N time units')
173 (Renamed as 'pitch_stretch'; Mon, 30 May 2005 17:23:17 +0200).
174 * 1062: The forked process for sound writing works, but it has proven
175 worse in slow systems. A redesign must be done to also allow direct
176 writing to ports (Closed by #1063; Mon, 30 May 2005 18:14:44 +0200).
177 * 1059: Add channel maps to language (Mon, 30 May 2005 18:50:38 +0200).
178 * 1040: Get rid of all _ prefixed symbols (Mon, 30 May 2005 19:12:19 +0200).
179 * 1064: Document or fix the 'feature' of pitch_stretch that, if the chosen
180 wave can't handle the final frequency (due to min/max boundaries), it can
181 end up not sounding at all (Tue, 31 May 2005 07:41:50 +0200).
182 * 1063: Now that I've tested it with good hardware, the new ss_outdev
183 driver is useless as is due to horrible latency. So, it must be rewritten
184 to do direct writing to devices (Wed, 01 Jun 2005 16:20:01 +0200).
185 * 1051: Unify all header files into annhell.h
186 (Thu, 02 Jun 2005 08:32:31 +0200).
187 * 1065: Create a document about the extended commands
188 (Closed by #1067; Thu, 02 Jun 2005 08:34:28 +0200).
189 * 1008: Support for 'keyboard splits': ranges of notes that a track will
190 ignore. This should allow to have multiple tracks playing the same
191 notes but with different channel maps and, for example, having a
192 guitar glissando pan from left to right
193 (No longer needed, a pan glissando can be done by using plain channel
194 volumes, as they are now immediately applied;
195 Thu, 02 Jun 2005 08:44:45 +0200).
196 * 1068: Add vibrato to ss instruments (Thu, 02 Jun 2005 13:28:39 +0200).
197 * 1069: Add vibrato to language (Thu, 02 Jun 2005 17:28:41 +0200).
198 * 1072: The instrument in midiin should also be an AHXM script
199 (Fri, 03 Jun 2005 19:08:15 +0200).
200 * 1073: The measure boundary checks should include line numbers
201 (Mon, 06 Jun 2005 16:29:28 +0200).
202 * 1066: All code that open files should use a special version of fopen()
203 that searches in a path of directories (Mon, 06 Jun 2005 17:52:44 +0200).
204 * 1017: mp_doccer documentation is severely outdated
205 (Tue, 07 Jun 2005 13:46:36 +0200).
206 * 1077: Delete all stdout crap (Sat, 11 Jun 2005 20:27:43 +0200).
207 * 1078: After a measure change, all measure bar checks break
208 (Sat, 11 Jun 2005 21:03:24 +0200).
209 * 1075: Unify everything inside the same executable (closed by #1079;
210 Sun, 12 Jun 2005 18:34:35 +0200).
211 * 1076: Make the unified executable to accept all options as command
212 line arguments (Sun, 12 Jun 2005 18:34:40 +0200).
213 * 1080: Take last group part into account when calculating its length
214 (Wed, 15 Jun 2005 16:31:30 +0200).
215 * 1081: The end of song is incorrectly detected. It can be reproduced by
216 having a very long note that ends longer after the last inserted event
217 (Thu, 16 Jun 2005 13:42:10 +0200).
218 * 1082: Wave loading should be cached, to optimize the loading of the
219 same sound from different tracks (Closed by #1084;
220 Thu, 16 Jun 2005 14:04:06 +0200).
221 * 1083: When a named block is referenced at the end of a line inside
222 another block, a syntax error is generated (Thu, 16 Jun 2005 18:32:54 +0200).
223 * 1071: Add the posibility to start a song from a given measure or time
224 (Sun, 19 Jun 2005 10:56:11 +0200).
225 * 1085: Add skip_secs capability to MIDI output
226 (Sun, 19 Jun 2005 12:48:51 +0200).
227 * 1002: Build an audio filtering tool to test effects
228 (Discarded; Tue, 21 Jun 2005 16:12:42 +0200).
229 * 1034: tempo_from_wave() will never work; when the wave is loaded, it's
230 too late for the tempo to be set, as the ss_song stream has no tempo
231 information. The only solution is to just print the optimal tempo, for
232 the ahxm programmer to change it manually (Closed by 1060;
233 Tue, 21 Jun 2005 16:13:09 +0200).
234 * 1067: Fill the extended commands document (Tue, 21 Jun 2005 17:19:28 +0200).
235 * 1060: Add print_wave_tempo to language (Thu, 23 Jun 2005 08:22:06 +0200).
236 * 1055: Add signal control to cleanly close the devices
237 (Thu, 23 Jun 2005 13:33:31 +0200).
238 * 1088: The 'wav' command doesn't bang when a sound can't be loaded
239 (Thu, 23 Jun 2005 17:32:49 +0200).
240 * 1090: Add a new sound generator, called 'stream' or something like that,
241 to simply stream a wave file into the current process, meant to avoid
242 loading very large files into memory and to help in using Ann Hell Ex Machina
243 as a remixing tool. These files will probably be limited to using the same
244 sampling rate as ahxm to avoid expensive conversions (Closed by #1091;
245 Mon, 12 Sep 2005 06:26:02 +0200).
246 * 1089: Add support for loading .mp3 files by using a cache (probably
247 in ~/.annhellcache) and external tools as mpg321
248 (Tue, 13 Sep 2005 19:45:29 +0200).
249 * 1086: MIDI output is still done to stdout (file descriptor 2)
250 (Wed, 14 Sep 2005 08:22:07 +0200).
251 * 1095: Clearly document the still unsupported things (for example,
252 double dots in lengths, immediate volumes) (Closed by #1097,
253 #1098; Thu, 13 Oct 2005 17:36:56 +0200).
254 * 1099: Add command-line options to mute and/or solo tracks
255 (closed by #1100 and #1101; Wed, 23 Nov 2005 13:27:15 +0100).
256 * 1101: Add command-line options to 'solo' a track
257 (Wed, 23 Nov 2005 15:54:28 +0100).
258 * 1102: Add a new command to move the current note cursor backwards
259 using note length notation (Tue, 06 Dec 2005 09:15:38 +0100).
260 * 1092: Release 1.0.0 right now and make it a stable CVS branch
261 (Mon, 19 Dec 2005 17:33:58 +0100).
262 * 1104: Tempo changes are very broken (try examples/tempo_change.ahs)
263 (Sat, 07 Jan 2006 17:11:04 +0100).
264 * 1106: Implement func_fader() by using the cursor instead of the
265 size, and deactivating itself by setting e->func to NULL
266 (Closed by #1107; Tue, 17 Jan 2006 08:55:37 +0100).
267 * 1107: Implement func_fader() by not changing the size
268 (Tue, 17 Jan 2006 09:08:39 +0100).
269 * 1105: Modify effects to use struct ss_wave instead of a plain wave
270 (Tue, 17 Jan 2006 15:47:27 +0100).
271 * 1020: When a source file includes multiple songs, there should exist a
272 way to mark song / track changes. This should be used to include text
273 messages as ID3 tags or even to generate .cue / .toc files
274 (Tue, 31 Jan 2006 17:28:33 +0100).
275 * 1109: Wave page loading crashes when trying to load a non-cached wave
276 file (Wed, 01 Feb 2006 15:55:58 +0100).
277 * 1103: Add a command line switch to skip music in the 'hard' way,
278 that is, just skipping the events (Thu, 02 Feb 2006 07:50:29 +0100).
279 * 1091: All 'plain' wave files (i.e., all except .pat files) should be
280 paged instead of read directly in memory (Thu, 02 Feb 2006 07:50:29 +0100).
281 * 1110: Add some way to map mono wave files to certain channels. It can be
282 done by adding two new variables to struct ss_wave: a 'first channel', to
283 hold the first channel that will contain the generated samples (default 0,
284 start from the first channel) and 'skip channels', the number of channels
285 to jump over (default 0, don't skip any sample)
286 (Sat, 04 Feb 2006 08:37:01 +0100).
287 * 1006: A 'choose' option, to take randomly one block or another
288 (blocks seem appropriate, but further study is necessary). A random
289 seed script command is also necessary (Tue, 07 Feb 2006 08:41:35 +0100).
290 * 1084: Add a 'copy' directive that uses ss_ins_copy_layers() to copy
291 the loaded instruments from one track into another
292 (Layer copying no longer supported since using paged waves;
293 Tue, 07 Feb 2006 08:43:59 +0100).
294 * 1114: Add a way to specify, or calculate automatically, the number of
295 channels a softsynth song uses. As of now, the default 2 channel output
296 makes necessary to change it from the command line (as the current
297 behaviour is to simply drop channels bigger than n_channels). Another
298 solution should be to add a directive to 'remap' out-of-bound channels
299 to existing ones (Sat, 19 Aug 2006 19:49:39 +0200).
300 * 1118: If no volume is set in a song, no channel is generated
301 (Sun, 20 Aug 2006 14:30:32 +0200).
302 * 1119: Change the track subcommand in the arpeggiator to be a track
303 offset instead of being an absolute one (Mon, 28 Aug 2006 15:14:03 +0200).
304 * 1070: Portamento support is still uncertain
305 (Sat, 09 Sep 2006 18:29:55 +0200).
306 * 1120: Change the portamento command to be specified in some unit not
307 depending on current sampling rate (Tue, 19 Sep 2006 06:45:06 +0200).
308 * 1007: Support for 'tonalities'; fixed transpositions for each note of
309 the octave so that, for example, a 'f' is always a 'f#' (Closed
310 by #1122; Tue, 19 Sep 2006 06:48:34 +0200).
311 * 1122: Add tonalities as a string of 12 note alterations. Proper
312 tonalities will be predefined as named blocks (like, say, $C_MAJOR)
313 (Closed by #1122; Tue, 19 Sep 2006 14:21:18 +0200).
314 * 1123: Add alterations as a string of 7 note alterations
315 (Tue, 19 Sep 2006 14:21:39 +0200).
316 * 1124: Document alterations (Wed, 20 Sep 2006 06:16:17 +0200).
317 * 1126: Create, as named blocks, presets for standard tonalities
318 (Sun, 24 Sep 2006 11:44:51 +0200).
319 * 1129: Wobble effects should have a 'gain' parameter to set the rate of
320 affected / original signal (with a default to 1, all affected /
321 no original) (Sun, 15 Oct 2006 21:00:57 +0200).
322 * 1131: Alterations seem to fail when a note has , or ' on it
323 (Wed, 01 Nov 2006 21:31:51 +0100).
325 Email bugs to angel@triptico.com