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Contents of /linuxsampler/trunk/configure.in

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Revision 832 - (show annotations) (download)
Sun Feb 5 10:24:05 2006 UTC (13 years, 5 months ago) by persson
File size: 37243 byte(s)
* added smoothing of volume changes caused by control change messages
* fine tuning of the crossfade volume curve

1 AC_INIT(configure.in)
2
3 #------------------------------------------------------------------------------------
4 # LinuxSampler's / liblinuxsampler's "official" release version:
5
6 LINUXSAMPLER_RELEASE_MAJOR=0
7 LINUXSAMPLER_RELEASE_MINOR=3
8 LINUXSAMPLER_RELEASE_BUILD=3cvs
9
10 #------------------------------------------------------------------------------------
11 # The following is the libtool / shared library version. This doesn't have to
12 # do anything with the release version. It MUST conform to the following rules:
13 #
14 # 1. Start with version information of `0:0:0' for each libtool library.
15 # 2. Update the version information only immediately before a public release of
16 # your software. More frequent updates are unnecessary, and only guarantee
17 # that the current interface number gets larger faster.
18 # 3. If the library source code has changed at all since the last update, then
19 # increment revision (`c:r:a' becomes `c:r+1:a').
20 # 4. If any interfaces have been added, removed, or changed since the last update,
21 # increment current, and set revision to 0.
22 # 5. If any interfaces have been added since the last public release, then increment
23 # age.
24 # 6. If any interfaces have been removed since the last public release, then set age
25 # to 0.
26
27 LIBLINUXSAMPLER_LT_CURRENT=0
28 LIBLINUXSAMPLER_LT_REVISION=0
29 LIBLINUXSAMPLER_LT_AGE=0
30 SHARED_VERSION_INFO="$LIBLINUXSAMPLER_LT_CURRENT:$LIBLINUXSAMPLER_LT_REVISION:$LIBLINUXSAMPLER_LT_AGE"
31
32 AM_PROG_LIBTOOL
33
34 AC_SUBST(SHLIB_VERSION_ARG)
35 AC_SUBST(SHARED_VERSION_INFO)
36
37 AC_C_BIGENDIAN
38 AC_CANONICAL_SYSTEM
39
40 AC_SUBST(target)
41 AC_SUBST(target_alias)
42 AC_SUBST(target_cpu)
43 AC_SUBST(target_os)
44 AC_SUBST(target_vendor)
45
46
47 ###########################################################################
48 # General Checks
49
50 AC_MSG_CHECKING([whether x86 architecture])
51 def_arch_x86=0
52 case $target_cpu in
53 "i386" | "i486" | "i586" | "i686" | "i786")
54 echo "yes"
55 def_arch_x86=1;;
56 *)
57 echo "no";;
58 esac
59 AC_DEFINE_UNQUOTED(ARCH_X86,$def_arch_x86,[Define to 1 if you build for x86 architecture.])
60
61 # determine the right gcc switch for CPU specific optimizations
62 # (only if the user did not provide one)
63 CXX_CPU_SWITCH=
64 if ! echo "X $CXXFLAGS " | grep -q -- " \(-march=\|-mcpu=\|-mtune=\|-arch=\)" ; then
65 if test "$def_arch_x86" = 1; then
66 CXX_CPU_SWITCH="-march=$target_cpu"
67 elif test "$target_cpu" = "powerpc"; then
68 CXX_CPU_SWITCH="-arch=$target_cpu"
69 fi
70 fi
71 AC_SUBST([CXX_CPU_SWITCH])
72
73 AC_MSG_CHECKING([whether UNIX98 compatible])
74 AC_LANG_SAVE
75 AC_LANG_C
76 AC_TRY_RUN([
77 #ifndef _GNU_SOURCE
78 #define _GNU_SOURCE 1
79 #endif
80 #include <features.h>
81 void main(void) {
82 #if _XOPEN_SOURCE >= 500
83 exit(0); /* UNIX98 compatible */
84 #else
85 exit(-1); /* not UNIX98 compatible */
86 #endif
87 }
88 ],
89 have_unix98="yes",
90 have_unix98="no",
91 have_unix98="no"
92 )
93 AC_LANG_RESTORE
94 AC_MSG_RESULT([$have_unix98])
95 if test "$have_unix98" = "no"; then
96 if test "x$HAVE_UNIX98" = "x"; then
97 echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
98 echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
99 echo "./configure with environment variable HAVE_UNIX98=1 in case you think you
100 echo "have a UNIX98 compatible system."
101 exit -1;
102 fi
103 fi
104
105 # check for <features.h>
106 AC_CHECK_HEADERS(features.h)
107
108 # Checks for available audio and MIDI systems / drivers
109 # (we throw an error if there's not at least one system for audio output and MIDI input available)
110 have_midi_input_driver="false"
111 have_audio_output_driver="false"
112
113 AC_CHECK_HEADER(alsa/asoundlib.h,
114 AC_CHECK_LIB(asound, main,
115 have_alsa=1
116 ,
117 have_alsa=0
118 )
119 ,
120 have_alsa=0
121 )
122 if test "$have_alsa" = "1"; then
123 have_midi_input_driver="true"
124 have_audio_output_driver="true";
125 fi
126 AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "1")
127 AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])
128
129 echo -n "checking Alsa version... "
130 AC_LANG_SAVE
131 AC_LANG_C
132 AC_TRY_RUN([
133 #include <alsa/asoundlib.h>
134 void main(void) {
135 /* ensure backward compatibility */
136 #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)
137 #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR
138 #endif
139 exit(SND_LIB_MAJOR);
140 }
141 ],
142 alsa_major=0,
143 alsa_major=$?,
144 alsa_major=0
145 )
146 AC_TRY_RUN([
147 #include <alsa/asoundlib.h>
148 void main(void) {
149 /* ensure backward compatibility */
150 #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)
151 #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR
152 #endif
153 exit(SND_LIB_MINOR);
154 }
155 ],
156 alsa_minor=0,
157 alsa_minor=$?,
158 alsa_minor=0
159 )
160 AC_TRY_RUN([
161 #include <alsa/asoundlib.h>
162 void main(void) {
163 /* ensure backward compatibility */
164 #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)
165 #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR
166 #endif
167 exit(SND_LIB_SUBMINOR);
168 }
169 ],
170 alsa_subminor=0,
171 alsa_subminor=$?,
172 alsa_subminor=0
173 )
174 AC_LANG_RESTORE
175 echo "$alsa_major.$alsa_minor.$alsa_subminor";
176 AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])
177 AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])
178 AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])
179
180 # JACK
181 PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)
182 AC_SUBST(JACK_LIBS)
183 AC_SUBST(JACK_CFLAGS)
184 if test $HAVE_JACK = false; then
185 HAVE_JACK=0;
186 else
187 HAVE_JACK=1
188 have_audio_output_driver="true";
189 AC_CHECK_LIB(jack, jack_client_name_size, [AC_DEFINE(HAVE_JACK_CLIENT_NAME_SIZE, 1, [Define to 1 if you have the `jack_client_name_size' function.])], , $JACK_LIBS)
190 fi
191 AM_CONDITIONAL(HAVE_JACK, test $HAVE_JACK = 1)
192 AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])
193
194 # MidiShare (Linux, OS X, Windows)
195 AC_CHECK_HEADER(MidiShare.h,
196 AC_CHECK_LIB(MidiShare, MidiCountEvs,
197 have_midishare=1,
198 have_midishare=0
199 )
200 ,
201 have_midishare=0
202 )
203 if test "$have_midishare" = "1"; then
204 have_midi_input_driver="true"
205 fi
206 AM_CONDITIONAL(HAVE_MIDISHARE, test $have_midishare = "1")
207 AC_DEFINE_UNQUOTED(HAVE_MIDISHARE,$have_midishare,[Define to 1 if you have MidiShare installed.])
208
209 # CoreMIDI (OS X)
210 AC_CHECK_HEADER(CoreMIDI/CoreMIDI.h,
211 have_coremidi=1,
212 have_coremidi=0
213 )
214 if test "$have_coremidi" = "1"; then
215 have_midi_input_driver="true"
216 fi
217 AM_CONDITIONAL(HAVE_COREMIDI, test $have_coremidi = "1")
218 AC_DEFINE_UNQUOTED(HAVE_COREMIDI,$have_coremidi,[Define to 1 if you have CoreMIDI installed.])
219
220 # Check presence of libgig
221 libgig_version="2.0.2"
222 PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
223 if test "$HAVE_GIG" = "false"; then
224 echo "Required libgig version not found!"
225 echo "You need to have libgig version ${libgig_version} installed!"
226 exit -1;
227 else
228 echo "yes, found libgig $libgig_version"
229 fi
230 AC_SUBST(GIG_CFLAGS)
231 AC_SUBST(GIG_LIBS)
232
233 # SQLITE3
234 PKG_CHECK_MODULES(SQLITE3, sqlite3, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
235 AC_SUBST(SQLITE3_LIBS)
236 AC_SUBST(SQLITE3_CFLAGS)
237 if test $HAVE_SQLITE3 = false; then
238 HAVE_SQLITE3=0;
239 echo "no, support for instrument DB will be disabled!"
240 else
241 HAVE_SQLITE3=1
242 echo "yes"
243 fi
244 AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
245 AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you have SQLITE3 installed.])
246
247 if test "$have_midi_input_driver" = "false"; then
248 echo "No supported MIDI input system found!"
249 echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
250 echo "ALSA, MIDIShare, CoreMIDI."
251 echo "If you think you have one of those available on your system, make sure you"
252 echo "also have the respective development (header) files installed."
253 exit -1;
254 fi
255 if test "$have_audio_output_driver" = "false"; then
256 echo "No supported audio output system found!"
257 echo "Sorry, LinuxSampler only supports ALSA and JACK as audio output driver at the moment!"
258 exit -1;
259 fi
260
261
262 ###########################################################################
263 # Handle Configuration Options
264
265 # TODO: should we use AC_ARG_VAR(variable, description) instead?
266
267 AC_ARG_ENABLE(asm,
268 [ --enable-asm
269 Enable hand-crafted assembly optimizations
270 (default=off). LinuxSampler provides CPU specific
271 assembly optimizations for the most important
272 synthesis algorithms. This is currently disabled
273 by default since current asm code is broken.],
274 [config_asm="yes"],
275 [config_asm="no"]
276 )
277 if test "$config_asm" = "yes"; then
278 AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable hand-crafted asm optimizations.])
279 fi
280
281 AC_ARG_ENABLE(dev-mode,
282 [ --disable-dev-mode
283 Disable development mode (default=on). In that mode
284 we do some extra sanity checks here and there.
285 This helps to spot possible problems, but reduces
286 efficiency a bit],
287 [config_dev_mode="no"],
288 [config_dev_mode="yes"]
289 )
290 if test "$config_dev_mode" = "yes"; then
291 AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
292 fi
293
294 AC_ARG_ENABLE(debug-level,
295 [ --enable-debug-level
296 Specify verbosity of console messages (default=1).
297 The higher the value, the higher will be verbosity.
298 A value of 0 means no console output at all.
299 There's not really an upper limit but the usual
300 level of all messages is currently somewhere less
301 than 10.],
302 [config_debug_level="${enableval}"],
303 [config_debug_level="1"]
304 )
305 AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
306
307 AC_ARG_ENABLE(rt-exceptions,
308 [ --enable-rt-exceptions
309 Enable exceptions in the realtime thread
310 (default=no). If this is enabled, exceptions will
311 be thrown on critical errors in the realtime
312 context as well. Otherwise if disabled
313 segmentation faults will be forced by the
314 application on critical errors.],
315 [config_rt_exceptions="yes"],
316 [config_rt_exceptions="no"]
317 )
318 if test "$config_rt_exceptions" = "yes"; then
319 AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
320 fi
321
322 AC_ARG_ENABLE(preload-samples,
323 [ --enable-preload-samples
324 Due to seeking and latency issues with hard drives
325 we have to cache a small part of samples' head in
326 RAM (default=32768). The higher this value the
327 more memory will be occupied for each sample, but
328 the safer this will be in regards of possible
329 droputs. A 'good' value depends on the running
330 system and usage dependant factors.],
331 [config_preload_samples="${enableval}"],
332 [config_preload_samples="32768"]
333 )
334 AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
335
336 AC_ARG_ENABLE(max-pitch,
337 [ --enable-max-pitch
338 Specify the maximum allowed pitch value in octaves
339 (default=4). To lower memory usage you might want
340 set a smaller value.],
341 [config_max_pitch="${enableval}"],
342 [config_max_pitch="4"]
343 )
344 AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
345
346 AC_ARG_ENABLE(max-events,
347 [ --enable-max-events
348 Specify the maximum allowed amount of events to be
349 processed per fragment (default=1024).],
350 [config_max_events="${enableval}"],
351 [config_max_events="1024"]
352 )
353 AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
354
355 AC_ARG_ENABLE(eg-bottom,
356 [ --enable-eg-bottom
357 Bottom limit of envelope generators
358 (default=0.001). Certain kinds of curve types like
359 exponential curves converge against 0 but never
360 reach 0. So we have to define a certain low value
361 after which we should consider all smaller values
362 to be 'almost zero'. The smaller this value, the
363 longer will voices survive in EG's release stage
364 and thus waste voices. If this value is too high
365 will cause click sounds though.],
366 [config_eg_bottom="${enableval}"],
367 [config_eg_bottom="0.001"]
368 )
369 AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
370
371 AC_ARG_ENABLE(eg-min-release-time,
372 [ --enable-eg-min-release-time
373 Specify the lowest allowed release time in seconds
374 (default=0.0025). This value will also be used to
375 ramp down voices on voice stealing. This value
376 should always be less than the period time of the
377 used audio driver, as in case of voice stealing
378 the killed voice needs to be completely ramped
379 down in the same fragment.],
380 [config_eg_min_release_time="${enableval}"],
381 [config_eg_min_release_time="0.0025"]
382 )
383 AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
384
385 AC_ARG_ENABLE(refill-streams,
386 [ --enable-refill-streams
387 Number of streams that should be refilled in each
388 disk thread cycle (default=4).],
389 [config_refill_streams="${enableval}"],
390 [config_refill_streams="4"]
391 )
392 AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
393
394 AC_ARG_ENABLE(stream-min-refill,
395 [ --enable-stream-min-refill
396 Minimum refill size for disk streams (default=1024).
397 The disk thread will go to sleep for a while if no
398 stream had to be refilled more than this value in
399 a disk thread cycle.],
400 [config_stream_min_refill="${enableval}"],
401 [config_stream_min_refill="1024"]
402 )
403 AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
404
405 AC_ARG_ENABLE(stream-max-refill,
406 [ --enable-stream-max-refill
407 Maximum refill size for disk streams
408 (default=65536). The disk thread will refill
409 each stream only by a size of this value per
410 disk thread cycle.],
411 [config_stream_max_refill="${enableval}"],
412 [config_stream_max_refill="65536"]
413 )
414 AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
415
416 AC_ARG_ENABLE(stream-size,
417 [ --enable-stream-size
418 Size of each stream's ring buffer in sample points
419 (default=262144).],
420 [config_stream_size="${enableval}"],
421 [config_stream_size="262144"]
422 )
423 AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
424
425 AC_ARG_ENABLE(max-streams,
426 [ --enable-max-streams
427 Maximum amount of disk streams (default=90). This
428 value should always be higher than the maximum
429 amount of voices.],
430 [config_max_streams="${enableval}"],
431 [config_max_streams="90"]
432 )
433 AC_DEFINE_UNQUOTED(CONFIG_MAX_STREAMS, $config_max_streams, [Define max. streams.])
434
435 AC_ARG_ENABLE(max-voices,
436 [ --enable-max-voices
437 Maximum amount of voices (default=64). This value
438 should always be lower than the maximum amount of
439 disk streams.],
440 [config_max_voices="${enableval}"],
441 [config_max_voices="64"]
442 )
443 AC_DEFINE_UNQUOTED(CONFIG_MAX_VOICES, $config_max_voices, [Define max. voices.])
444
445 AC_ARG_ENABLE(subfragment-size,
446 [ --enable-subfragment-size
447 Every audio fragment will be splitted into
448 subfragments. Where each subfragment renders
449 audio with constant synthesis parameters. This is
450 done for efficiency reasons. This parameter
451 defines the default size of a subfragment in
452 sample points. A large value means less CPU time
453 whereas a low value means better audio quality
454 (default=32).],
455 [config_subfragment_size="${enableval}"],
456 [config_subfragment_size="32"]
457 )
458 AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
459
460 AC_ARG_ENABLE(global-attenuation,
461 [ --enable-global-attenuation
462 To prevent clipping all samples will be lowered
463 in amplitude by this given factor.
464 (default=0.35)],
465 [config_global_attenuation="${enableval}"],
466 [config_global_attenuation="0.35"]
467 )
468 AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION, $config_global_attenuation, [Define global volume attenuation (as floating point factor).])
469
470 AC_ARG_ENABLE(voice-steal-algo,
471 [ --enable-voice-steal-algo
472 Voice stealing algorithm to be used. Currently
473 available options:
474 none:
475 Disable voice stealing completely.
476 oldestvoiceonkey (default):
477 Try to kill a voice on the same key first,
478 if no success, proceed with the oldest key.
479 oldestkey:
480 Try to kill a voice from the oldest active
481 key.],
482 [ if test ! "(" "${enableval}" = "none" \
483 -o "${enableval}" = "oldestvoiceonkey" \
484 -o "${enableval}" = "oldestkey" ")" ; then
485 AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
486 else
487 config_voice_steal_algo="${enableval}"
488 fi
489 ],
490 [config_voice_steal_algo="oldestvoiceonkey"]
491 )
492 AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
493
494 AC_ARG_ENABLE(sysex-buffer-size,
495 [ --enable-sysex-buffer-size
496 System Exclusive Message buffer size in kB
497 (default=2048).],
498 [config_sysex_buffer_size="${enableval}"],
499 [config_sysex_buffer_size="2048"]
500 )
501 AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
502
503 AC_ARG_ENABLE(force-filter,
504 [ --enable-force-filter
505 If enabled will force filter to be used even if
506 no usage was define in instrument patch files.
507 (default=no).],
508 [config_force_filter="yes"],
509 [config_force_filter="no"]
510 )
511 if test "$config_force_filter" = "yes"; then
512 AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
513 fi
514
515 AC_ARG_ENABLE(filter-cutoff-min,
516 [ --enable-filter-cutoff-min
517 Minimum filter cutoff frequency in Hz
518 (default=100.0).],
519 [config_filter_cutoff_min="${enableval}"],
520 [config_filter_cutoff_min="100.0"]
521 )
522 AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
523
524 AC_ARG_ENABLE(filter-cutoff-max,
525 [ --enable-filter-cutoff-max
526 Maximum filter cutoff frequency in Hz
527 (default=10000.0).],
528 [config_filter_cutoff_max="${enableval}"],
529 [config_filter_cutoff_max="10000.0"]
530 )
531 AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
532
533 AC_ARG_ENABLE(override-cutoff-ctrl,
534 [ --enable-override-cutoff-ctrl
535 Override filter cutoff MIDI controller (default=no).
536 Note: you have to define the MIDI controller number
537 here, it's not a boolean parameter type! If this
538 option is used, controller number given by
539 instrument patch will be ignored and instead this
540 supplied value will be used.],
541 [config_override_cutoff_ctrl="${enableval}"],
542 [config_override_cutoff_ctrl="no"]
543 )
544 if test ! "$config_override_cutoff_ctrl" = "no"; then
545 AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
546 fi
547
548 AC_ARG_ENABLE(override-resonance-ctrl,
549 [ --enable-override-resonance-ctrl
550 Override filter resonance MIDI controller
551 (default=no). Note: you have to define the MIDI
552 controller number here, it's not a boolean
553 parameter type! If this option is used, controller
554 number given by instrument patch will be ignored
555 and instead this supplied value will be used.],
556 [config_override_resonance_ctrl="${enableval}"],
557 [config_override_resonance_ctrl="no"]
558 )
559 if test ! "$config_override_resonance_ctrl" = "no"; then
560 AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
561 fi
562
563 AC_ARG_ENABLE(override-filter-type,
564 [ --enable-override-filter-type
565 Override filter type (default=no). Options:
566 hp: for highpass
567 bp: for bandpass
568 br: for bandreject
569 lp: for lowpass
570 lpt: for lowpass turbo],
571 [ if test "${enableval}" = "hp" ; then
572 config_override_filter_type="::gig::vcf_type_highpass"
573 elif test "${enableval}" = "bp" ; then
574 config_override_filter_type="::gig::vcf_type_bandpass"
575 elif test "${enableval}" = "br" ; then
576 config_override_filter_type="::gig::vcf_type_bandreject"
577 elif test "${enableval}" = "lp" ; then
578 config_override_filter_type="::gig::vcf_type_lowpass"
579 elif test "${enableval}" = "lpt" ; then
580 config_override_filter_type="::gig::vcf_type_lowpassturbo"
581 elif test ! "${enableval}" = "no"; then
582 AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
583 fi
584 ],
585 [config_override_filter_type="no"]
586 )
587 if test ! "$config_override_filter_type" = "no"; then
588 AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
589 fi
590
591 AC_ARG_ENABLE(gs-checksum,
592 [ --enable-gs-checksum
593 Enable Roland General Synth SysEx checksum check
594 (default=no). If this is enabled, all GS SysEx
595 messages which do not provide a correct checksum
596 will be ignored. This is disabled by default as
597 not all devices honor GS checksums.],
598 [config_assert_gs_sysex_checksum="yes"],
599 [config_assert_gs_sysex_checksum="no"]
600 )
601 if test "config_assert_gs_sysex_checksum" = "yes"; then
602 AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
603 fi
604
605 AC_ARG_ENABLE(portamento-time-min,
606 [ --enable-portamento-time-min
607 Minimum Portamento time in seconds
608 (default=0.1).],
609 [config_portamento_time_min="${enableval}"],
610 [config_portamento_time_min="0.1"]
611 )
612 AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
613
614 AC_ARG_ENABLE(portamento-time-max,
615 [ --enable-portamento-time-max
616 Maximum Portamento time in seconds
617 (default=32).],
618 [config_portamento_time_max="${enableval}"],
619 [config_portamento_time_max="32"]
620 )
621 AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
622
623 AC_ARG_ENABLE(portamento-time-default,
624 [ --enable-portamento-time-default
625 Default Portamento time in seconds
626 (default=1).],
627 [config_portamento_time_default="${enableval}"],
628 [config_portamento_time_default="1"]
629 )
630 AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
631
632 AC_ARG_ENABLE(signed-triang-algo,
633 [ --enable-signed-triang-algo
634 Signed triangular wave algorithm to be used (e.g. for LFOs).
635 Currently available options:
636 intmath:
637 Uses integer math without any branch will then be
638 converted to floating point value for each sample point.
639 This int->float conversion might hurt on some systems.
640 intmathabs:
641 Similar to intmath but uses abs() function.
642 Depending on compiler and platrofm this could
643 perform better than integer math as it avoids
644 an extra integer multiply instruction.
645
646 diharmonic:
647 The triangular wave will be approximated by adding two
648 sinusoidials. This solution might especially hurt on
649 systems with weak floating point unit.
650 benchmark (default):
651 This is not an algorithm. Use this option if the
652 appropriate algorithm should be automatically
653 chosen by the configure script by performing a
654 benchmark between the algorithms mentioned above.
655 This will NOT work for cross compilation!],
656 [ if test ! "(" "${enableval}" = "intmath" \
657 -o "${enableval}" = "intmathabs" \
658 -o "${enableval}" = "diharmonic" ")" ; then
659 AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
660 else
661 config_signed_triang_algo="${enableval}"
662 fi
663 ],
664 [config_signed_triang_algo="benchmark"]
665 )
666
667 AC_ARG_ENABLE(unsigned-triang-algo,
668 [ --enable-unsigned-triang-algo
669 Unsigned triangular wave algorithm to be used (e.g. for LFOs).
670 Currently available options:
671 intmath:
672 Uses integer math without any branch will then be
673 converted to floating point value for each sample point.
674 This int->float conversion might hurt on some systems.
675 intmathabs:
676 Similar to intmath but uses abs() function.
677 Depending on compiler and platrofm this could
678 perform better than integer math as it avoids
679 an extra integer multiply instruction.
680
681 diharmonic:
682 The triangular wave will be approximated by adding two
683 sinusoidials. This solution might especially hurt on
684 systems with weak floating point unit.
685 benchmark (default):
686 This is not an algorithm. Use this option if the
687 appropriate algorithm should be automatically
688 chosen by the configure script by performing a
689 benchmark between the algorithms mentioned above.
690 This will NOT work for cross compilation!],
691 [ if test ! "(" "${enableval}" = "intmath" \
692 -o "${enableval}" = "intmathabs" \
693 -o "${enableval}" = "diharmonic" ")" ; then
694 AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
695 else
696 config_unsigned_triang_algo="${enableval}"
697 fi
698 ],
699 [config_unsigned_triang_algo="benchmark"]
700 )
701
702 AC_ARG_ENABLE(process-muted-channels,
703 [ --enable-process-muted-channels
704 Enable processing of muted channels (default=no).
705 In that mode all MIDI events in the muted channels
706 will be processed. This will provide information
707 about the active voices in the muted channels and
708 will not discard notes, triggered in mute mode,
709 when the channel is unmuted. But also will reduce
710 the efficiency.],
711 [config_process_muted_channels="yes"],
712 [config_process_muted_channels="no"]
713 )
714 if test "$config_process_muted_channels" = "yes"; then
715 AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
716 fi
717
718 AC_ARG_ENABLE(interpolate-volume,
719 [ --disable-interpolate-volume
720 Disable interpolation of volume modulation
721 (default=on). With this enabled, the volume changes
722 generated by for example the envelope generator
723 will be smoother, minimizing the risk for audio
724 clicks. Disable it to reduce CPU usage.],
725 [config_interpolate_volume="no"],
726 [config_interpolate_volume="yes"]
727 )
728 if test "$config_interpolate_volume" = "yes"; then
729 AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
730 fi
731
732
733 ###########################################################################
734 # Automatic Benchmarks (to detect the best algorithms for the system)
735
736 AC_LANG_SAVE
737
738 if test "$config_signed_triang_algo" = "benchmark"; then
739 echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
740 AC_LANG_CPLUSPLUS
741 AC_TRY_RUN([
742 #define SIGNED 1
743 #define SILENT 1
744 #include "${srcdir}/benchmarks/triang.cpp"
745 ],
746 triang_signed=0,
747 triang_signed=$?,
748 triang_signed=0
749 )
750 if test "$triang_signed" = "2"; then
751 config_signed_triang_algo="intmath"
752 echo "integer math"
753 elif test "$triang_signed" = "3"; then
754 config_signed_triang_algo="diharmonic"
755 echo "di harmonics"
756 elif test "$triang_signed" = "5"; then
757 config_signed_triang_algo="intmathabs"
758 echo "integer math using abs()"
759 else
760 echo "Benchmark of signed triangular wave algorithms failed!"
761 echo "Maybe you are doing cross compilation? In that case you have to select"
762 echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
763 echo "Call './configure --help' for further information or read configure.in."
764 exit -1;
765 fi
766 fi
767 AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
768
769 if test "$config_unsigned_triang_algo" = "benchmark"; then
770 echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
771 AC_LANG_CPLUSPLUS
772 AC_TRY_RUN([
773 #define SIGNED 0
774 #define SILENT 1
775 #include "${srcdir}/benchmarks/triang.cpp"
776 ],
777 triang_unsigned=0,
778 triang_unsigned=$?,
779 triang_unsigned=0
780 )
781 if test "$triang_unsigned" = "2"; then
782 config_unsigned_triang_algo="intmath"
783 echo "integer math"
784 elif test "$triang_unsigned" = "3"; then
785 config_unsigned_triang_algo="diharmonic"
786 echo "di harmonics"
787 elif test "$triang_unsigned" = "5"; then
788 config_unsigned_triang_algo="intmathabs"
789 echo "integer math using abs()"
790 else
791 echo "Benchmark of unsigned triangular wave algorithms failed!"
792 echo "Maybe you are doing cross compilation? In that case you have to select"
793 echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
794 echo "Call './configure --help' for further information or read configure.in."
795 exit -1;
796 fi
797 fi
798 AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
799
800 AC_LANG_RESTORE
801
802
803 ###########################################################################
804 # Create Build Files
805
806 AM_CONFIG_HEADER(config.h)
807 AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
808
809 AC_LANG_CPLUSPLUS
810 AC_PROG_CXX
811
812 # some gcc 4.0 versions need -msse for SSE register allocations
813 if test "$config_asm" = "yes"; then
814 if test "$def_arch_x86" = 1; then
815 CXXFLAGS="$CXXFLAGS -msse"
816 fi
817 fi
818
819 # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
820 # this, the dlfcn.h check in am_prog_libtool may fail.
821 AC_CHECK_HEADER(stdlib.h)
822
823 AC_OUTPUT( \
824 Makefile \
825 man/Makefile \
826 man/linuxsampler.1 \
827 src/Makefile \
828 src/network/Makefile \
829 src/engines/Makefile \
830 src/engines/gig/Makefile \
831 src/engines/common/Makefile \
832 src/common/Makefile src/lib/Makefile \
833 src/lib/fileloader/Makefile \
834 src/lib/fileloader/libgig/Makefile \
835 src/testcases/Makefile \
836 src/drivers/Makefile \
837 src/drivers/audio/Makefile \
838 src/drivers/midi/Makefile \
839 linuxsampler.spec \
840 debian/Makefile \
841 Artwork/Makefile \
842 scripts/Makefile \
843 osx/Makefile \
844 osx/LinuxSampler.xcode/Makefile \
845 Documentation/Makefile \
846 Documentation/Engines/Makefile \
847 Documentation/Engines/gig/Makefile \
848 linuxsampler.pc \
849 Doxyfile \
850 )
851
852
853 ###########################################################################
854 # Output All Configuration Options
855
856 echo ""
857 echo "#####################################################################"
858 echo "# LinuxSampler Configuration #"
859 echo "#-------------------------------------------------------------------#"
860 echo "# Assembly Optimizations: ${config_asm}"
861 echo "# Development Mode: ${config_dev_mode}"
862 echo "# Debug Level: ${config_debug_level}"
863 echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
864 echo "# Preload Samples: ${config_preload_samples}"
865 echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
866 echo "# Maximum Events: ${config_max_events}"
867 echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
868 echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
869 echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
870 echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
871 echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
872 echo "# Stream Size: ${config_stream_size}"
873 echo "# Maximum Disk Streams: ${config_max_streams}"
874 echo "# Maximum Voices: ${config_max_voices}"
875 echo "# Default Subfragment Size: ${config_subfragment_size}"
876 echo "# Global Volume Attenuation: ${config_global_attenuation}"
877 echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
878 echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
879 echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
880 echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
881 echo "# Min. Portamento Time: ${config_portamento_time_min} s"
882 echo "# Max. Portamento Time: ${config_portamento_time_max} s"
883 echo "# Default Portamento Time: ${config_portamento_time_default} s"
884 echo "# Force Filter Usage: ${config_force_filter}"
885 echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
886 echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
887 echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
888 echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
889 echo "# Override Filter Type: ${config_override_filter_type}"
890 echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
891 echo "# Process Muted Channels: ${config_process_muted_channels}"
892 echo "# Interpolate Volume: ${config_interpolate_volume}"
893 echo "#-------------------------------------------------------------------#"
894 echo "# Read './configure --help' or file 'configure.in' for details. #"
895 echo "#####################################################################"
896 echo ""
897 echo "Good. Now type 'make' to compile, followed by 'make install' as root."
898 echo ""

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