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revision 53 by schoenebeck, Mon Apr 26 17:15:51 2004 UTC revision 849 by schoenebeck, Sat Mar 25 13:05:59 2006 UTC
# Line 1  Line 1 
1  AC_INIT(configure.in)  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  AC_C_BIGENDIAN
38  AC_CANONICAL_SYSTEM  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  echo -n "checking whether x86 architecture... "  AC_MSG_CHECKING([whether x86 architecture])
51  def_arch_x86=0  def_arch_x86=0
52  case $target_cpu in  case $target_cpu in
53    "i386" | "i486" | "i586" | "i686" | "i786")    "i386" | "i486" | "i586" | "i686" | "i786")
# Line 14  case $target_cpu in Line 58  case $target_cpu in
58  esac  esac
59  AC_DEFINE_UNQUOTED(ARCH_X86,$def_arch_x86,[Define to 1 if you build for x86 architecture.])  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$HAVE_UNIX98" = "x"; then
97            echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
98            echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
99            echo "./configure with environment variable HAVE_UNIX98=1 in case you think you
100            echo "have a UNIX98 compatible system."
101            exit -1;
102        fi
103    fi
104    
105    # check for <features.h>
106    AC_CHECK_HEADERS(features.h)
107    
108    # Checks for available audio and MIDI systems / drivers
109    # (we throw an error if there's not at least one system for audio output and MIDI input available)
110    have_midi_input_driver="false"
111    have_audio_output_driver="false"
112    
113  AC_CHECK_HEADER(alsa/asoundlib.h,  AC_CHECK_HEADER(alsa/asoundlib.h,
114      AC_CHECK_LIB(asound, main,      AC_CHECK_LIB(asound, main,
115                               have_alsa="true"                               have_alsa=1
116                               ,                               ,
117                               have_alsa="false"                               have_alsa=0
118                  )                  )
119                  ,                  ,
120                  have_alsa="false"                  have_alsa=0
121  )  )
122  if test "$have_alsa" = "false"; then  if test "$have_alsa" = "1"; then
123      echo "Alsa not installed!"      have_midi_input_driver="true"
124      echo "Sorry, LinuxSampler only supports Alsa sound drivers at the moment!"      have_audio_output_driver="true";
     exit -1;  
125  fi  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... "  echo -n "checking Alsa version... "
130  AC_LANG_SAVE  AC_LANG_SAVE
# Line 82  AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_majo Line 177  AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_majo
177  AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])  AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])
178  AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])  AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])
179    
   
180  # JACK  # JACK
181  PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)  PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)
182  AC_SUBST(JACK_LIBS)  AC_SUBST(JACK_LIBS)
# Line 90  AC_SUBST(JACK_CFLAGS) Line 184  AC_SUBST(JACK_CFLAGS)
184  if test $HAVE_JACK = false; then  if test $HAVE_JACK = false; then
185      HAVE_JACK=0;      HAVE_JACK=0;
186  else  else
187      HAVE_JACK=1;      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  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.])  AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])
193    
194    # ARTS
195    
196    m4_ifdef([m4_include(m4/arts.m4)],,
197            [sinclude([m4/arts.m4])])
198    
199    AM_PATH_ARTS(0.9.5, have_arts=1, have_arts=0)
200    if test "$have_arts" = "1"; then
201        have_audio_output_driver="true"
202    fi
203    AM_CONDITIONAL(HAVE_ARTS, test "$have_arts" = "1")
204    AC_DEFINE_UNQUOTED(HAVE_ARTS,$have_arts,[Define to 1 if you have aRts installed.])
205    
206    # MidiShare (Linux, OS X, Windows)
207    AC_CHECK_HEADER(MidiShare.h,
208        AC_CHECK_LIB(MidiShare, MidiCountEvs,
209                                have_midishare=1,
210                                have_midishare=0
211                    )
212                    ,
213                    have_midishare=0
214    )
215    if test "$have_midishare" = "1"; then
216        have_midi_input_driver="true"
217    fi
218    AM_CONDITIONAL(HAVE_MIDISHARE, test $have_midishare = "1")
219    AC_DEFINE_UNQUOTED(HAVE_MIDISHARE,$have_midishare,[Define to 1 if you have MidiShare installed.])
220    
221    # CoreMIDI (OS X)
222    AC_CHECK_HEADER(CoreMIDI/CoreMIDI.h,
223                    have_coremidi=1,
224                    have_coremidi=0
225    )
226    if test "$have_coremidi" = "1"; then
227        have_midi_input_driver="true"
228    fi
229    AM_CONDITIONAL(HAVE_COREMIDI, test $have_coremidi = "1")
230    AC_DEFINE_UNQUOTED(HAVE_COREMIDI,$have_coremidi,[Define to 1 if you have CoreMIDI installed.])
231    
232    # Check presence of libgig
233    libgig_version="2.0.2"
234    PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
235    if test "$HAVE_GIG" = "false"; then
236        echo "Required libgig version not found!"
237        echo "You need to have libgig version ${libgig_version} installed!"
238        exit -1;
239    else
240        echo "yes, found libgig $libgig_version"
241    fi
242    AC_SUBST(GIG_CFLAGS)
243    AC_SUBST(GIG_LIBS)
244    
245    # SQLITE3
246    PKG_CHECK_MODULES(SQLITE3, sqlite3, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
247    AC_SUBST(SQLITE3_LIBS)
248    AC_SUBST(SQLITE3_CFLAGS)
249    if test $HAVE_SQLITE3 = false; then
250        HAVE_SQLITE3=0;
251        echo "no, support for instrument DB will be disabled!"
252    else
253        HAVE_SQLITE3=1
254        echo "yes"
255    fi
256    AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
257    AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you have SQLITE3 installed.])
258    
259    if test "$have_midi_input_driver" = "false"; then
260        echo "No supported MIDI input system found!"
261        echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
262        echo "ALSA, MIDIShare, CoreMIDI."
263        echo "If you think you have one of those available on your system, make sure you"
264        echo "also have the respective development (header) files installed."
265        exit -1;
266    fi
267    if test "$have_audio_output_driver" = "false"; then
268        echo "No supported audio output system found!"
269        echo "Sorry, LinuxSampler only supports ALSA and JACK as audio output driver at the moment!"
270        exit -1;
271    fi
272    
273    
274    ###########################################################################
275    # Handle Configuration Options
276    
277    # TODO: should we use AC_ARG_VAR(variable, description) instead?
278    
279    AC_ARG_ENABLE(asm,
280      [  --enable-asm
281                              Enable hand-crafted assembly optimizations
282                              (default=off). LinuxSampler provides CPU specific
283                              assembly optimizations for the most important
284                              synthesis algorithms. This is currently disabled
285                              by default since current asm code is broken.],
286      [config_asm="yes"],
287      [config_asm="no"]
288    )
289    if test "$config_asm" = "yes"; then
290      AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable hand-crafted asm optimizations.])
291    fi
292    
293    AC_ARG_ENABLE(dev-mode,
294      [  --disable-dev-mode
295                              Disable development mode (default=on). In that mode
296                              we do some extra sanity checks here and there.
297                              This helps to spot possible problems, but reduces
298                              efficiency a bit],
299      [config_dev_mode="no"],
300      [config_dev_mode="yes"]
301    )
302    if test "$config_dev_mode" = "yes"; then
303      AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
304    fi
305    
306    AC_ARG_ENABLE(debug-level,
307      [  --enable-debug-level
308                              Specify verbosity of console messages (default=1).
309                              The higher the value, the higher will be verbosity.
310                              A value of 0 means no console output at all.
311                              There's not really an upper limit but the usual
312                              level of all messages is currently somewhere less
313                              than 10.],
314      [config_debug_level="${enableval}"],
315      [config_debug_level="1"]
316    )
317    AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
318    
319    AC_ARG_ENABLE(rt-exceptions,
320      [  --enable-rt-exceptions
321                              Enable exceptions in the realtime thread
322                              (default=no). If this is enabled, exceptions will
323                              be thrown on critical errors in the realtime
324                              context as well. Otherwise if disabled
325                              segmentation faults will be forced by the
326                              application on critical errors.],
327      [config_rt_exceptions="yes"],
328      [config_rt_exceptions="no"]
329    )
330    if test "$config_rt_exceptions" = "yes"; then
331      AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
332    fi
333    
334    AC_ARG_ENABLE(preload-samples,
335      [  --enable-preload-samples
336                              Due to seeking and latency issues with hard drives
337                              we have to cache a small part of samples' head in
338                              RAM (default=32768). The higher this value the
339                              more memory will be occupied for each sample, but
340                              the safer this will be in regards of possible
341                              droputs. A 'good' value depends on the running
342                              system and usage dependant factors.],
343      [config_preload_samples="${enableval}"],
344      [config_preload_samples="32768"]
345    )
346    AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
347    
348    AC_ARG_ENABLE(max-pitch,
349      [  --enable-max-pitch
350                              Specify the maximum allowed pitch value in octaves
351                              (default=4). To lower memory usage you might want
352                              set a smaller value.],
353      [config_max_pitch="${enableval}"],
354      [config_max_pitch="4"]
355    )
356    AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
357    
358    AC_ARG_ENABLE(max-events,
359      [  --enable-max-events
360                              Specify the maximum allowed amount of events to be
361                              processed per fragment (default=1024).],
362      [config_max_events="${enableval}"],
363      [config_max_events="1024"]
364    )
365    AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
366    
367    AC_ARG_ENABLE(eg-bottom,
368      [  --enable-eg-bottom
369                              Bottom limit of envelope generators
370                              (default=0.001). Certain kinds of curve types like
371                              exponential curves converge against 0 but never
372                              reach 0. So we have to define a certain low value
373                              after which we should consider all smaller values
374                              to be 'almost zero'. The smaller this value, the
375                              longer will voices survive in EG's release stage
376                              and thus waste voices. If this value is too high
377                              will cause click sounds though.],
378      [config_eg_bottom="${enableval}"],
379      [config_eg_bottom="0.001"]
380    )
381    AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
382    
383    AC_ARG_ENABLE(eg-min-release-time,
384      [  --enable-eg-min-release-time
385                              Specify the lowest allowed release time in seconds
386                              (default=0.0025). This value will also be used to
387                              ramp down voices on voice stealing. This value
388                              should always be less than the period time of the
389                              used audio driver, as in case of voice stealing
390                              the killed voice needs to be completely ramped
391                              down in the same fragment.],
392      [config_eg_min_release_time="${enableval}"],
393      [config_eg_min_release_time="0.0025"]
394    )
395    AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
396    
397    AC_ARG_ENABLE(refill-streams,
398      [  --enable-refill-streams
399                              Number of streams that should be refilled in each
400                              disk thread cycle (default=4).],
401      [config_refill_streams="${enableval}"],
402      [config_refill_streams="4"]
403    )
404    AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
405    
406    AC_ARG_ENABLE(stream-min-refill,
407      [  --enable-stream-min-refill
408                              Minimum refill size for disk streams (default=1024).
409                              The disk thread will go to sleep for a while if no
410                              stream had to be refilled more than this value in
411                              a disk thread cycle.],
412      [config_stream_min_refill="${enableval}"],
413      [config_stream_min_refill="1024"]
414    )
415    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
416    
417    AC_ARG_ENABLE(stream-max-refill,
418      [  --enable-stream-max-refill
419                              Maximum refill size for disk streams
420                              (default=65536). The disk thread will refill
421                              each stream only by a size of this value per
422                              disk thread cycle.],
423      [config_stream_max_refill="${enableval}"],
424      [config_stream_max_refill="65536"]
425    )
426    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
427    
428    AC_ARG_ENABLE(stream-size,
429      [  --enable-stream-size
430                              Size of each stream's ring buffer in sample points
431                              (default=262144).],
432      [config_stream_size="${enableval}"],
433      [config_stream_size="262144"]
434    )
435    AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
436    
437    AC_ARG_ENABLE(max-streams,
438      [  --enable-max-streams
439                              Maximum amount of disk streams (default=90). This
440                              value should always be higher than the maximum
441                              amount of voices.],
442      [config_max_streams="${enableval}"],
443      [config_max_streams="90"]
444    )
445    AC_DEFINE_UNQUOTED(CONFIG_MAX_STREAMS, $config_max_streams, [Define max. streams.])
446    
447    AC_ARG_ENABLE(max-voices,
448      [  --enable-max-voices
449                              Maximum amount of voices (default=64). This value
450                              should always be lower than the maximum amount of
451                              disk streams.],
452      [config_max_voices="${enableval}"],
453      [config_max_voices="64"]
454    )
455    AC_DEFINE_UNQUOTED(CONFIG_MAX_VOICES, $config_max_voices, [Define max. voices.])
456    
457    AC_ARG_ENABLE(subfragment-size,
458      [  --enable-subfragment-size
459                              Every audio fragment will be splitted into
460                              subfragments. Where each subfragment renders
461                              audio with constant synthesis parameters. This is
462                              done for efficiency reasons. This parameter
463                              defines the default size of a subfragment in
464                              sample points. A large value means less CPU time
465                              whereas a low value means better audio quality
466                              (default=32).],
467      [config_subfragment_size="${enableval}"],
468      [config_subfragment_size="32"]
469    )
470    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
471    
472    AC_ARG_ENABLE(global-attenuation,
473      [  --enable-global-attenuation
474                              To prevent clipping all samples will be lowered
475                              in amplitude by this given factor.
476                              (default=0.35)],
477      [config_global_attenuation="${enableval}"],
478      [config_global_attenuation="0.35"]
479    )
480    AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION, $config_global_attenuation, [Define global volume attenuation (as floating point factor).])
481    
482    AC_ARG_ENABLE(voice-steal-algo,
483      [  --enable-voice-steal-algo
484                              Voice stealing algorithm to be used. Currently
485                              available options:
486                                none:
487                                  Disable voice stealing completely.
488                                oldestvoiceonkey (default):
489                                  Try to kill a voice on the same key first,
490                                  if no success, proceed with the oldest key.
491                                oldestkey:
492                                  Try to kill a voice from the oldest active
493                                  key.],
494      [ if test ! "(" "${enableval}" = "none" \
495                  -o "${enableval}" = "oldestvoiceonkey" \
496                  -o "${enableval}" = "oldestkey" ")" ; then
497          AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
498        else
499          config_voice_steal_algo="${enableval}"
500        fi
501      ],
502      [config_voice_steal_algo="oldestvoiceonkey"]
503    )
504    AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
505    
506    AC_ARG_ENABLE(sysex-buffer-size,
507      [  --enable-sysex-buffer-size
508                              System Exclusive Message buffer size in kB
509                              (default=2048).],
510      [config_sysex_buffer_size="${enableval}"],
511      [config_sysex_buffer_size="2048"]
512    )
513    AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
514    
515    AC_ARG_ENABLE(force-filter,
516      [  --enable-force-filter
517                              If enabled will force filter to be used even if
518                              no usage was define in instrument patch files.
519                              (default=no).],
520      [config_force_filter="yes"],
521      [config_force_filter="no"]
522    )
523    if test "$config_force_filter" = "yes"; then
524      AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
525    fi
526    
527    AC_ARG_ENABLE(filter-cutoff-min,
528      [  --enable-filter-cutoff-min
529                              Minimum filter cutoff frequency in Hz
530                              (default=100.0).],
531      [config_filter_cutoff_min="${enableval}"],
532      [config_filter_cutoff_min="100.0"]
533    )
534    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
535    
536    AC_ARG_ENABLE(filter-cutoff-max,
537      [  --enable-filter-cutoff-max
538                              Maximum filter cutoff frequency in Hz
539                              (default=10000.0).],
540      [config_filter_cutoff_max="${enableval}"],
541      [config_filter_cutoff_max="10000.0"]
542    )
543    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
544    
545    AC_ARG_ENABLE(override-cutoff-ctrl,
546      [  --enable-override-cutoff-ctrl
547                              Override filter cutoff MIDI controller (default=no).
548                              Note: you have to define the MIDI controller number
549                              here, it's not a boolean parameter type! If this
550                              option is used, controller number given by
551                              instrument patch will be ignored and instead this
552                              supplied value will be used.],
553      [config_override_cutoff_ctrl="${enableval}"],
554      [config_override_cutoff_ctrl="no"]
555    )
556    if test ! "$config_override_cutoff_ctrl" = "no"; then
557      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
558    fi
559    
560    AC_ARG_ENABLE(override-resonance-ctrl,
561      [  --enable-override-resonance-ctrl
562                              Override filter resonance MIDI controller
563                              (default=no). Note: you have to define the MIDI
564                              controller number here, it's not a boolean
565                              parameter type! If this option is used, controller
566                              number given by instrument patch will be ignored
567                              and instead this supplied value will be used.],
568      [config_override_resonance_ctrl="${enableval}"],
569      [config_override_resonance_ctrl="no"]
570    )
571    if test ! "$config_override_resonance_ctrl" = "no"; then
572      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
573    fi
574    
575    AC_ARG_ENABLE(override-filter-type,
576      [  --enable-override-filter-type
577                              Override filter type (default=no). Options:
578                              hp: for highpass
579                              bp: for bandpass
580                              br: for bandreject
581                              lp: for lowpass
582                              lpt: for lowpass turbo],
583      [ if   test "${enableval}" = "hp" ; then
584           config_override_filter_type="::gig::vcf_type_highpass"
585        elif test "${enableval}" = "bp" ; then
586           config_override_filter_type="::gig::vcf_type_bandpass"
587        elif test "${enableval}" = "br" ; then
588           config_override_filter_type="::gig::vcf_type_bandreject"
589        elif test "${enableval}" = "lp" ; then
590           config_override_filter_type="::gig::vcf_type_lowpass"
591        elif test "${enableval}" = "lpt" ; then
592           config_override_filter_type="::gig::vcf_type_lowpassturbo"
593        elif test ! "${enableval}" = "no"; then
594           AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
595        fi
596      ],
597      [config_override_filter_type="no"]
598    )
599    if test ! "$config_override_filter_type" = "no"; then
600      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
601    fi
602    
603    AC_ARG_ENABLE(gs-checksum,
604      [  --enable-gs-checksum
605                              Enable Roland General Synth SysEx checksum check
606                              (default=no). If this is enabled, all GS SysEx
607                              messages which do not provide a correct checksum
608                              will be ignored. This is disabled by default as
609                              not all devices honor GS checksums.],
610      [config_assert_gs_sysex_checksum="yes"],
611      [config_assert_gs_sysex_checksum="no"]
612    )
613    if test "config_assert_gs_sysex_checksum" = "yes"; then
614      AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
615    fi
616    
617    AC_ARG_ENABLE(portamento-time-min,
618      [  --enable-portamento-time-min
619                              Minimum Portamento time in seconds
620                              (default=0.1).],
621      [config_portamento_time_min="${enableval}"],
622      [config_portamento_time_min="0.1"]
623    )
624    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
625    
626    AC_ARG_ENABLE(portamento-time-max,
627      [  --enable-portamento-time-max
628                              Maximum Portamento time in seconds
629                              (default=32).],
630      [config_portamento_time_max="${enableval}"],
631      [config_portamento_time_max="32"]
632    )
633    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
634    
635    AC_ARG_ENABLE(portamento-time-default,
636      [  --enable-portamento-time-default
637                              Default Portamento time in seconds
638                              (default=1).],
639      [config_portamento_time_default="${enableval}"],
640      [config_portamento_time_default="1"]
641    )
642    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
643    
644    AC_ARG_ENABLE(signed-triang-algo,
645      [  --enable-signed-triang-algo
646                              Signed triangular wave algorithm to be used (e.g. for LFOs).
647                              Currently available options:
648                                intmath:
649                                  Uses integer math without any branch will then be
650                                  converted to floating point value for each sample point.
651                                  This int->float conversion might hurt on some systems.
652                                intmathabs:
653                                  Similar to intmath but uses abs() function.
654                                  Depending on compiler and platrofm this could
655                                  perform better than integer math as it avoids
656                                  an extra integer multiply instruction.
657    
658                                diharmonic:
659                                  The triangular wave will be approximated by adding two
660                                  sinusoidials. This solution might especially hurt on
661                                  systems with weak floating point unit.
662                                benchmark (default):
663                                  This is not an algorithm. Use this option if the
664                                  appropriate algorithm should be automatically
665                                  chosen by the configure script by performing a
666                                  benchmark between the algorithms mentioned above.
667                                  This will NOT work for cross compilation!],
668      [ if test ! "(" "${enableval}" = "intmath" \
669                  -o "${enableval}" = "intmathabs" \
670                  -o "${enableval}" = "diharmonic" ")" ; then
671          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
672        else
673          config_signed_triang_algo="${enableval}"
674        fi
675      ],
676      [config_signed_triang_algo="benchmark"]
677    )
678    
679    AC_ARG_ENABLE(unsigned-triang-algo,
680      [  --enable-unsigned-triang-algo
681                              Unsigned triangular wave algorithm to be used (e.g. for LFOs).
682                              Currently available options:
683                                intmath:
684                                  Uses integer math without any branch will then be
685                                  converted to floating point value for each sample point.
686                                  This int->float conversion might hurt on some systems.
687                                intmathabs:
688                                  Similar to intmath but uses abs() function.
689                                  Depending on compiler and platrofm this could
690                                  perform better than integer math as it avoids
691                                  an extra integer multiply instruction.
692    
693                                diharmonic:
694                                  The triangular wave will be approximated by adding two
695                                  sinusoidials. This solution might especially hurt on
696                                  systems with weak floating point unit.
697                                benchmark (default):
698                                  This is not an algorithm. Use this option if the
699                                  appropriate algorithm should be automatically
700                                  chosen by the configure script by performing a
701                                  benchmark between the algorithms mentioned above.
702                                  This will NOT work for cross compilation!],
703      [ if test ! "(" "${enableval}" = "intmath" \
704                  -o "${enableval}" = "intmathabs" \
705                  -o "${enableval}" = "diharmonic" ")" ; then
706          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
707        else
708          config_unsigned_triang_algo="${enableval}"
709        fi
710      ],
711      [config_unsigned_triang_algo="benchmark"]
712    )
713    
714    AC_ARG_ENABLE(process-muted-channels,
715      [  --enable-process-muted-channels
716                              Enable processing of muted channels (default=no).
717                              In that mode all MIDI events in the muted channels
718                              will be processed. This will provide information
719                              about the active voices in the muted channels and
720                              will not discard notes, triggered in mute mode,
721                              when the channel is unmuted. But also will reduce
722                              the efficiency.],
723      [config_process_muted_channels="yes"],
724      [config_process_muted_channels="no"]
725    )
726    if test "$config_process_muted_channels" = "yes"; then
727      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
728    fi
729    
730    AC_ARG_ENABLE(process-all-notes-off,
731      [  --disable-process-all-notes-off
732                              Disable interpretation of All-Notes-Off MIDI
733                              messages (default=on). By default LS will release
734                              all voices whenever it receives an All-Notes-Off
735                              MIDI message. You can disable this behavior, so
736                              that LS simply ignores such messages.],
737      [config_process_all_notes_off="no"],
738      [config_process_all_notes_off="yes"]
739    )
740    if test "$config_process_all_notes_off" = "yes"; then
741      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_ALL_NOTES_OFF, 1, [Define to 1 if you want to enable processing of All-Notes-Off MIDI messages.])
742    fi
743    
744    AC_ARG_ENABLE(interpolate-volume,
745      [  --disable-interpolate-volume
746                              Disable interpolation of volume modulation
747                              (default=on). With this enabled, the volume changes
748                              generated by for example the envelope generator
749                              will be smoother, minimizing the risk for audio
750                              clicks. Disable it to reduce CPU usage.],
751      [config_interpolate_volume="no"],
752      [config_interpolate_volume="yes"]
753    )
754    if test "$config_interpolate_volume" = "yes"; then
755      AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
756    fi
757    
758    
759    ###########################################################################
760    # Automatic Benchmarks (to detect the best algorithms for the system)
761    
762    AC_LANG_SAVE
763    
764    if test "$config_signed_triang_algo" = "benchmark"; then
765        echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
766        AC_LANG_CPLUSPLUS
767        AC_TRY_RUN([
768                #define SIGNED 1
769                #define SILENT 1
770                #include "${srcdir}/benchmarks/triang.cpp"
771            ],
772            triang_signed=0,
773            triang_signed=$?,
774            triang_signed=0
775        )
776        if test "$triang_signed" = "2"; then
777            config_signed_triang_algo="intmath"
778            echo "integer math"
779        elif test "$triang_signed" = "3"; then
780            config_signed_triang_algo="diharmonic"
781            echo "di harmonics"
782        elif test "$triang_signed" = "5"; then
783            config_signed_triang_algo="intmathabs"
784            echo "integer math using abs()"
785        else
786            echo "Benchmark of signed triangular wave algorithms failed!"
787            echo "Maybe you are doing cross compilation? In that case you have to select"
788            echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
789            echo "Call './configure --help' for further information or read configure.in."
790            exit -1;
791        fi
792    fi
793    AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
794    
795    if test "$config_unsigned_triang_algo" = "benchmark"; then
796        echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
797        AC_LANG_CPLUSPLUS
798        AC_TRY_RUN([
799                #define SIGNED 0
800                #define SILENT 1
801                #include "${srcdir}/benchmarks/triang.cpp"
802            ],
803            triang_unsigned=0,
804            triang_unsigned=$?,
805            triang_unsigned=0
806        )
807        if test "$triang_unsigned" = "2"; then
808            config_unsigned_triang_algo="intmath"
809            echo "integer math"
810        elif test "$triang_unsigned" = "3"; then
811            config_unsigned_triang_algo="diharmonic"
812            echo "di harmonics"
813        elif test "$triang_unsigned" = "5"; then
814            config_unsigned_triang_algo="intmathabs"
815            echo "integer math using abs()"
816        else
817            echo "Benchmark of unsigned triangular wave algorithms failed!"
818            echo "Maybe you are doing cross compilation? In that case you have to select"
819            echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
820            echo "Call './configure --help' for further information or read configure.in."
821            exit -1;
822        fi
823    fi
824    AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
825    
826    AC_LANG_RESTORE
827    
828    
829    ###########################################################################
830    # Create Build Files
831    
832  AM_CONFIG_HEADER(config.h)  AM_CONFIG_HEADER(config.h)
833  AM_INIT_AUTOMAKE(linuxsampler, 0.1)  AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
834    
835  AC_LANG_CPLUSPLUS  AC_LANG_CPLUSPLUS
836  AC_PROG_CXX  AC_PROG_CXX
 AM_PROG_LIBTOOL  
837    
838  AC_OUTPUT(Makefile src/Makefile src/network/Makefile src/engines/Makefile src/engines/gig/Makefile src/engines/common/Makefile src/common/Makefile src/audiodriver/Makefile src/mididriver/Makefile src/lib/Makefile src/lib/fileloader/Makefile src/lib/fileloader/libgig/Makefile)  # some gcc 4.0 versions need -msse for SSE register allocations
839    if test "$config_asm" = "yes"; then
840      if test "$def_arch_x86" = 1; then
841        CXXFLAGS="$CXXFLAGS -msse"
842      fi
843    fi
844    
845    # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
846    # this, the dlfcn.h check in am_prog_libtool may fail.
847    AC_CHECK_HEADER(stdlib.h)
848    
849    AC_OUTPUT( \
850        Makefile \
851        man/Makefile \
852        man/linuxsampler.1 \
853        src/Makefile \
854        src/network/Makefile \
855        src/engines/Makefile \
856        src/engines/gig/Makefile \
857        src/engines/common/Makefile \
858        src/common/Makefile src/lib/Makefile \
859        src/lib/fileloader/Makefile \
860        src/lib/fileloader/libgig/Makefile \
861        src/testcases/Makefile \
862        src/drivers/Makefile \
863        src/drivers/audio/Makefile \
864        src/drivers/midi/Makefile \
865        linuxsampler.spec \
866        debian/Makefile \
867        Artwork/Makefile \
868        scripts/Makefile \
869        osx/Makefile \
870        osx/LinuxSampler.xcode/Makefile \
871        Documentation/Makefile \
872        Documentation/Engines/Makefile \
873        Documentation/Engines/gig/Makefile \
874        linuxsampler.pc \
875        Doxyfile \
876    )
877    
878    
879    ###########################################################################
880    # Output All Configuration Options
881    
882    echo ""
883    echo "#####################################################################"
884    echo "# LinuxSampler Configuration                                        #"
885    echo "#-------------------------------------------------------------------#"
886    echo "# Assembly Optimizations: ${config_asm}"
887    echo "# Development Mode: ${config_dev_mode}"
888    echo "# Debug Level: ${config_debug_level}"
889    echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
890    echo "# Preload Samples: ${config_preload_samples}"
891    echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
892    echo "# Maximum Events: ${config_max_events}"
893    echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
894    echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
895    echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
896    echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
897    echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
898    echo "# Stream Size: ${config_stream_size}"
899    echo "# Maximum Disk Streams: ${config_max_streams}"
900    echo "# Maximum Voices: ${config_max_voices}"
901    echo "# Default Subfragment Size: ${config_subfragment_size}"
902    echo "# Global Volume Attenuation: ${config_global_attenuation}"
903    echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
904    echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
905    echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
906    echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
907    echo "# Min. Portamento Time: ${config_portamento_time_min} s"
908    echo "# Max. Portamento Time: ${config_portamento_time_max} s"
909    echo "# Default Portamento Time: ${config_portamento_time_default} s"
910    echo "# Force Filter Usage: ${config_force_filter}"
911    echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
912    echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
913    echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
914    echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
915    echo "# Override Filter Type: ${config_override_filter_type}"
916    echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
917    echo "# Process Muted Channels: ${config_process_muted_channels}"
918    echo "# Process All-Notes-Off MIDI message: ${config_process_all_notes_off}"
919    echo "# Interpolate Volume: ${config_interpolate_volume}"
920    echo "#-------------------------------------------------------------------#"
921    echo "# Read './configure --help' or file 'configure.in' for details.     #"
922    echo "#####################################################################"
923    echo ""
924    echo "Good. Now type 'make' to compile, followed by 'make install' as root."
925    echo ""

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