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Working basic_libpd
author Giulio Moro <giuliomoro@yahoo.it>
date Sat, 09 Apr 2016 08:19:09 +0100
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229:c768ed1055b0 230:af211ee57867
1 /* Copyright (c) 1997-1999 Miller Puckette.
2 * For information on usage and redistribution, and for a DISCLAIMER OF ALL
3 * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
4
5 /* Audio and MIDI I/O, and other scheduling and system stuff. */
6
7 /* NOTE: this file describes Pd implementation details which may change
8 in future releases. The public (stable) API is in m_pd.h. */
9
10 /* in s_path.c */
11
12 typedef struct _namelist /* element in a linked list of stored strings */
13 {
14 struct _namelist *nl_next; /* next in list */
15 char *nl_string; /* the string */
16 } t_namelist;
17
18 t_namelist *namelist_append(t_namelist *listwas, const char *s, int allowdup);
19 t_namelist *namelist_append_files(t_namelist *listwas, const char *s);
20 void namelist_free(t_namelist *listwas);
21 char *namelist_get(t_namelist *namelist, int n);
22 void sys_setextrapath(const char *p);
23 extern int sys_usestdpath;
24 extern t_namelist *sys_externlist;
25 extern t_namelist *sys_searchpath;
26 extern t_namelist *sys_helppath;
27 int sys_open_absolute(const char *name, const char* ext,
28 char *dirresult, char **nameresult, unsigned int size, int bin, int *fdp);
29 int sys_trytoopenone(const char *dir, const char *name, const char* ext,
30 char *dirresult, char **nameresult, unsigned int size, int bin);
31 t_symbol *sys_decodedialog(t_symbol *s);
32
33 /* s_file.c */
34
35 void sys_loadpreferences( void);
36 void sys_savepreferences( void);
37 extern int sys_defeatrt;
38 extern t_symbol *sys_flags;
39
40 /* s_main.c */
41 extern int sys_debuglevel;
42 extern int sys_verbose;
43 extern int sys_noloadbang;
44 extern int sys_nogui;
45 extern char *sys_guicmd;
46
47 EXTERN int sys_nearestfontsize(int fontsize);
48 EXTERN int sys_hostfontsize(int fontsize);
49
50 extern int sys_defaultfont;
51 EXTERN t_symbol *sys_libdir; /* library directory for auxilliary files */
52 extern t_symbol *sys_guidir; /* directory holding pd_gui, u_pdsend, etc */
53
54 /* s_loader.c */
55
56 typedef int (*loader_t)(t_canvas *canvas, char *classname); /* callback type */
57 EXTERN int sys_load_lib(t_canvas *canvas, char *filename);
58 EXTERN void sys_register_loader(loader_t loader);
59
60 /* s_audio.c */
61
62 #define SENDDACS_NO 0 /* return values for sys_send_dacs() */
63 #define SENDDACS_YES 1
64 #define SENDDACS_SLEPT 2
65
66 #define DEFDACBLKSIZE 8
67 extern int sys_schedblocksize; /* audio block size for scheduler */
68 extern int sys_hipriority; /* real-time flag, true if priority boosted */
69 EXTERN t_sample *sys_soundout;
70 EXTERN t_sample *sys_soundin;
71 extern int sys_inchannels;
72 extern int sys_outchannels;
73 extern int sys_advance_samples; /* scheduler advance in samples */
74 extern int sys_blocksize; /* audio I/O block size in sample frames */
75 extern t_float sys_dacsr;
76 extern int sys_schedadvance;
77 extern int sys_sleepgrain;
78 EXTERN void sys_set_audio_settings(int naudioindev, int *audioindev,
79 int nchindev, int *chindev,
80 int naudiooutdev, int *audiooutdev, int nchoutdev, int *choutdev,
81 int srate, int advance, int callback, int blocksize);
82 /* the same as above, but reopens the audio subsystem if needed */
83 EXTERN void sys_set_audio_settings_reopen(int naudioindev, int *audioindev,
84 int nchindev, int *chindev,
85 int naudiooutdev, int *audiooutdev, int nchoutdev, int *choutdev,
86 int srate, int advance, int callback, int blocksize);
87 EXTERN void sys_reopen_audio( void);
88 EXTERN void sys_close_audio(void);
89 /* return true if the interface prefers always being open (ala jack) : */
90 EXTERN int audio_shouldkeepopen( void);
91 EXTERN int audio_isopen( void); /* true if audio interface is open */
92 EXTERN int sys_audiodevnametonumber(int output, const char *name);
93 EXTERN void sys_audiodevnumbertoname(int output, int devno, char *name,
94 int namesize);
95
96 int sys_send_dacs(void);
97 void sys_reportidle(void);
98 void sys_set_priority(int higher);
99 void sys_audiobuf(int nbufs);
100 void sys_getmeters(t_sample *inmax, t_sample *outmax);
101 void sys_listdevs(void);
102 void sys_setblocksize(int n);
103
104 EXTERN void sys_get_audio_devs(char *indevlist, int *nindevs,
105 char *outdevlist, int *noutdevs, int *canmulti, int *cancallback,
106 int maxndev, int devdescsize);
107 EXTERN void sys_get_audio_apis(char *buf);
108
109 /* s_midi.c */
110 #define MAXMIDIINDEV 16 /* max. number of input ports */
111 #define MAXMIDIOUTDEV 16 /* max. number of output ports */
112 extern int sys_midiapi;
113 extern int sys_nmidiin;
114 extern int sys_nmidiout;
115 extern int sys_midiindevlist[];
116 extern int sys_midioutdevlist[];
117
118 EXTERN void sys_open_midi(int nmidiin, int *midiinvec,
119 int nmidiout, int *midioutvec, int enable);
120
121 EXTERN void sys_get_midi_apis(char *buf);
122 EXTERN void sys_get_midi_devs(char *indevlist, int *nindevs,
123 char *outdevlist, int *noutdevs,
124 int maxndev, int devdescsize);
125 EXTERN void sys_get_midi_params(int *pnmidiindev, int *pmidiindev,
126 int *pnmidioutdev, int *pmidioutdev);
127 EXTERN int sys_mididevnametonumber(int output, const char *name);
128 EXTERN void sys_mididevnumbertoname(int output, int devno, char *name,
129 int namesize);
130
131 EXTERN void sys_reopen_midi( void);
132 EXTERN void sys_close_midi( void);
133 EXTERN void sys_putmidimess(int portno, int a, int b, int c);
134 EXTERN void sys_putmidibyte(int portno, int a);
135 EXTERN void sys_poll_midi(void);
136 EXTERN void sys_setmiditimediff(double inbuftime, double outbuftime);
137 EXTERN void sys_midibytein(int portno, int byte);
138
139 /* implemented in the system dependent MIDI code (s_midi_pm.c, etc. ) */
140 void midi_getdevs(char *indevlist, int *nindevs,
141 char *outdevlist, int *noutdevs, int maxndev, int devdescsize);
142 void sys_do_open_midi(int nmidiindev, int *midiindev,
143 int nmidioutdev, int *midioutdev);
144
145 #ifdef USEAPI_ALSA
146 EXTERN void sys_alsa_putmidimess(int portno, int a, int b, int c);
147 EXTERN void sys_alsa_putmidibyte(int portno, int a);
148 EXTERN void sys_alsa_poll_midi(void);
149 EXTERN void sys_alsa_setmiditimediff(double inbuftime, double outbuftime);
150 EXTERN void sys_alsa_midibytein(int portno, int byte);
151 EXTERN void sys_alsa_close_midi( void);
152
153
154 /* implemented in the system dependent MIDI code (s_midi_pm.c, etc. ) */
155 void midi_alsa_getdevs(char *indevlist, int *nindevs,
156 char *outdevlist, int *noutdevs, int maxndev, int devdescsize);
157 void sys_alsa_do_open_midi(int nmidiindev, int *midiindev,
158 int nmidioutdev, int *midioutdev);
159 #endif
160
161 /* m_sched.c */
162 EXTERN void sys_log_error(int type);
163 #define ERR_NOTHING 0
164 #define ERR_ADCSLEPT 1
165 #define ERR_DACSLEPT 2
166 #define ERR_RESYNC 3
167 #define ERR_DATALATE 4
168
169 #define SCHED_AUDIO_NONE 0
170 #define SCHED_AUDIO_POLL 1
171 #define SCHED_AUDIO_CALLBACK 2
172 void sched_set_using_audio(int flag);
173
174 /* s_inter.c */
175
176 EXTERN void sys_microsleep(int microsec);
177 EXTERN void sys_init_fdpoll(void);
178
179 EXTERN void sys_bail(int exitcode);
180 EXTERN int sys_pollgui(void);
181
182 EXTERN_STRUCT _socketreceiver;
183 #define t_socketreceiver struct _socketreceiver
184
185 typedef void (*t_socketnotifier)(void *x, int n);
186 typedef void (*t_socketreceivefn)(void *x, t_binbuf *b);
187
188 EXTERN t_socketreceiver *socketreceiver_new(void *owner,
189 t_socketnotifier notifier, t_socketreceivefn socketreceivefn, int udp);
190 EXTERN void socketreceiver_read(t_socketreceiver *x, int fd);
191 EXTERN void sys_sockerror(char *s);
192 EXTERN void sys_closesocket(int fd);
193
194 typedef void (*t_fdpollfn)(void *ptr, int fd);
195 EXTERN void sys_addpollfn(int fd, t_fdpollfn fn, void *ptr);
196 EXTERN void sys_rmpollfn(int fd);
197 #if defined(USEAPI_OSS) || defined(USEAPI_ALSA)
198 void sys_setalarm(int microsec);
199 #endif
200
201 #define API_NONE 0
202 #define API_ALSA 1
203 #define API_OSS 2
204 #define API_MMIO 3
205 #define API_PORTAUDIO 4
206 #define API_JACK 5
207 #define API_SGI 6 /* gone */
208 #define API_AUDIOUNIT 7
209 #define API_ESD 8 /* no idea what this was, probably gone now */
210 #define API_DUMMY 9
211
212 /* figure out which API should be the default. The one we judge most
213 likely to offer a working device takes precedence so that if you
214 start up Pd for the first time there's a reasonable chance you'll have
215 sound. (You'd think portaudio would be best but it seems to default
216 to jack on linux, and and on Windows we only use it for ASIO).
217 If nobody shows up, define DUMMY and make it the default.*/
218 #if defined(USEAPI_MMIO)
219 # define API_DEFAULT API_MMIO
220 # define API_DEFSTRING "MMIO"
221 #elif defined(USEAPI_ALSA)
222 # define API_DEFAULT API_ALSA
223 # define API_DEFSTRING "ALSA"
224 #elif defined(USEAPI_OSS)
225 # define API_DEFAULT API_OSS
226 # define API_DEFSTRING "OSS"
227 #elif defined(USEAPI_AUDIOUNIT)
228 # define API_DEFAULT API_AUDIOUNIT
229 # define API_DEFSTRING "AudioUnit"
230 #elif defined(USEAPI_ESD)
231 # define API_DEFAULT API_ESD
232 # define API_DEFSTRING "ESD (?)"
233 #elif defined(USEAPI_PORTAUDIO)
234 # define API_DEFAULT API_PORTAUDIO
235 # define API_DEFSTRING "portaudio"
236 #elif defined(USEAPI_JACK)
237 # define API_DEFAULT API_JACK
238 # define API_DEFSTRING "Jack audio connection kit"
239 #else
240 # ifndef USEAPI_DUMMY /* we need at least one so bring in the dummy */
241 # define USEAPI_DUMMY
242 # endif /* USEAPI_DUMMY */
243 # define API_DEFAULT API_DUMMY
244 # define API_DEFSTRING "dummy audio"
245 #endif
246
247 #define DEFAULTAUDIODEV 0
248
249 #define MAXAUDIOINDEV 4
250 #define MAXAUDIOOUTDEV 4
251
252 #define DEFMIDIDEV 0
253
254 #define DEFAULTSRATE 44100
255 #ifdef _WIN32
256 #define DEFAULTADVANCE 80
257 #else
258 #ifdef __APPLE__
259 #define DEFAULTADVANCE 5 /* this is in addition to their own delay */
260 #else
261 #define DEFAULTADVANCE 25
262 #endif
263 #endif
264
265 typedef void (*t_audiocallback)(void);
266
267 int pa_open_audio(int inchans, int outchans, int rate, t_sample *soundin,
268 t_sample *soundout, int framesperbuf, int nbuffers,
269 int indeviceno, int outdeviceno, t_audiocallback callback);
270 void pa_close_audio(void);
271 int pa_send_dacs(void);
272 void sys_reportidle(void);
273 void pa_listdevs(void);
274 void pa_getdevs(char *indevlist, int *nindevs,
275 char *outdevlist, int *noutdevs, int *canmulti,
276 int maxndev, int devdescsize);
277
278 int oss_open_audio(int naudioindev, int *audioindev, int nchindev,
279 int *chindev, int naudiooutdev, int *audiooutdev, int nchoutdev,
280 int *choutdev, int rate, int blocksize);
281 void oss_close_audio(void);
282 int oss_send_dacs(void);
283 void oss_reportidle(void);
284 void oss_getdevs(char *indevlist, int *nindevs,
285 char *outdevlist, int *noutdevs, int *canmulti,
286 int maxndev, int devdescsize);
287
288 int alsa_open_audio(int naudioindev, int *audioindev, int nchindev,
289 int *chindev, int naudiooutdev, int *audiooutdev, int nchoutdev,
290 int *choutdev, int rate, int blocksize);
291 void alsa_close_audio(void);
292 int alsa_send_dacs(void);
293 void alsa_reportidle(void);
294 void alsa_getdevs(char *indevlist, int *nindevs,
295 char *outdevlist, int *noutdevs, int *canmulti,
296 int maxndev, int devdescsize);
297
298 int jack_open_audio(int wantinchans, int wantoutchans, int srate,
299 t_audiocallback callback);
300 void jack_close_audio(void);
301 int jack_send_dacs(void);
302 void jack_reportidle(void);
303 void jack_getdevs(char *indevlist, int *nindevs,
304 char *outdevlist, int *noutdevs, int *canmulti,
305 int maxndev, int devdescsize);
306 void jack_listdevs(void);
307
308 int mmio_open_audio(int naudioindev, int *audioindev,
309 int nchindev, int *chindev, int naudiooutdev, int *audiooutdev,
310 int nchoutdev, int *choutdev, int rate, int blocksize);
311 void mmio_close_audio( void);
312 void mmio_reportidle(void);
313 int mmio_send_dacs(void);
314 void mmio_getdevs(char *indevlist, int *nindevs,
315 char *outdevlist, int *noutdevs, int *canmulti,
316 int maxndev, int devdescsize);
317
318 int audiounit_open_audio(int naudioindev, int *audioindev, int nchindev,
319 int *chindev, int naudiooutdev, int *audiooutdev, int nchoutdev,
320 int *choutdev, int rate);
321 void audiounit_close_audio(void);
322 int audiounit_send_dacs(void);
323 void audiounit_listdevs(void);
324 void audiounit_getdevs(char *indevlist, int *nindevs,
325 char *outdevlist, int *noutdevs, int *canmulti,
326 int maxndev, int devdescsize);
327
328 int esd_open_audio(int naudioindev, int *audioindev, int nchindev,
329 int *chindev, int naudiooutdev, int *audiooutdev, int nchoutdev,
330 int *choutdev, int rate);
331 void esd_close_audio(void);
332 int esd_send_dacs(void);
333 void esd_listdevs(void);
334 void esd_getdevs(char *indevlist, int *nindevs,
335 char *outdevlist, int *noutdevs, int *canmulti,
336 int maxndev, int devdescsize);
337
338 int dummy_open_audio(int nin, int nout, int sr);
339 int dummy_close_audio( void);
340 int dummy_send_dacs( void);
341 void dummy_getdevs(char *indevlist, int *nindevs, char *outdevlist,
342 int *noutdevs, int *canmulti, int maxndev, int devdescsize);
343 void dummy_listdevs( void);
344
345 void sys_listmididevs(void);
346 EXTERN void sys_set_midi_api(int whichapi);
347 EXTERN void sys_set_audio_api(int whichapi);
348 EXTERN int sys_audioapi;
349 EXTERN void sys_set_audio_state(int onoff);
350
351 /* API dependent audio flags and settings */
352 void oss_set32bit( void);
353 void linux_alsa_devname(char *devname);
354
355 EXTERN void sys_get_audio_params(
356 int *pnaudioindev, int *paudioindev, int *chindev,
357 int *pnaudiooutdev, int *paudiooutdev, int *choutdev,
358 int *prate, int *padvance, int *callback, int *blocksize);
359 void sys_save_audio_params(
360 int naudioindev, int *audioindev, int *chindev,
361 int naudiooutdev, int *audiooutdev, int *choutdev,
362 int rate, int advance, int callback, int blocksize);
363
364 /* s_file.c */
365
366 typedef void (*t_printhook)(const char *s);
367 extern t_printhook sys_printhook; /* set this to override printing */
368 extern int sys_printtostderr;
369
370 /* jsarlo { */
371
372 EXTERN double sys_time;
373 EXTERN double sys_time_per_dsp_tick;
374 EXTERN int sys_externalschedlib;
375
376 EXTERN t_sample* get_sys_soundout(void ) ;
377 EXTERN t_sample* get_sys_soundin(void ) ;
378 EXTERN int* get_sys_main_advance(void ) ;
379 EXTERN double* get_sys_time_per_dsp_tick(void ) ;
380 EXTERN int* get_sys_schedblocksize(void ) ;
381 EXTERN double* get_sys_time(void ) ;
382 EXTERN t_float* get_sys_dacsr(void ) ;
383 EXTERN int* get_sys_sleepgrain(void ) ;
384 EXTERN int* get_sys_schedadvance(void ) ;
385
386 EXTERN void sys_clearhist(void );
387 EXTERN void sys_initmidiqueue(void );
388 EXTERN int sys_addhist(int phase);
389 EXTERN void sys_setmiditimediff(double inbuftime, double outbuftime);
390 EXTERN void sched_tick( void);
391 EXTERN void sys_pollmidiqueue(void );
392 EXTERN int sys_pollgui(void );
393 EXTERN void sys_setchsr(int chin, int chout, int sr);
394
395 EXTERN void inmidi_realtimein(int portno, int cmd);
396 EXTERN void inmidi_byte(int portno, int byte);
397 EXTERN void inmidi_sysex(int portno, int byte);
398 EXTERN void inmidi_noteon(int portno, int channel, int pitch, int velo);
399 EXTERN void inmidi_controlchange(int portno,
400 int channel,
401 int ctlnumber,
402 int value);
403 EXTERN void inmidi_programchange(int portno, int channel, int value);
404 EXTERN void inmidi_pitchbend(int portno, int channel, int value);
405 EXTERN void inmidi_aftertouch(int portno, int channel, int value);
406 EXTERN void inmidi_polyaftertouch(int portno,
407 int channel,
408 int pitch,
409 int value);
410 /* } jsarlo */
411 extern t_widgetbehavior text_widgetbehavior;