4dd20fcd07c3c0cef4243565e6920add62b5fbb4
[terminatorX.git] / src / tX_global.c
1 /*
2     terminatorX - realtime audio scratching software
3     Copyright (C) 1999-2016  Alexander K├Ânig
4  
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9  
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14  
15     You should have received a copy of the GNU General Public License
16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  
18     File: tX_global.c
19  
20     Description:  This file contains the routines for handling the
21                   "globals" block. Intializing, reading setup from
22                   disk and storing it.
23 */    
24
25 #include <config.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include "tX_types.h"
29 #include "tX_global.h"
30 #include "string.h"
31 #include <libxml/xmlmemory.h>
32 #include <libxml/parser.h>
33 #include <libxml/encoding.h>
34
35
36 #define TX_XML_RC_VERSION "1.0"
37
38 tx_global globals;
39 int _store_compress_xml=0;
40
41 #ifdef USE_ALSA_MIDI_IN
42 extern void tX_midiin_store_connections(FILE *rc, char *indent);
43 extern void tX_midiin_restore_connections(xmlNodePtr node);
44 #endif
45
46 void get_rc_name(char *buffer, int length)
47 {
48         strncpy(buffer,"", length);
49         if (globals.alternate_rc) {
50                 strncpy(buffer, globals.alternate_rc, length);
51         } else {
52                 if (getenv("HOME")) {
53                         strncpy(buffer, getenv("HOME"), length-16);
54                         if (buffer[strlen(buffer)-1]!='/')
55                         strcat(buffer, "/");
56                 }
57                 strcat(buffer, ".terminatorXrc");
58         }
59 }
60
61 void set_global_defaults() {
62         globals.startup_set = 0;
63         globals.store_globals = 1;
64         globals.no_gui = 0;
65         globals.alternate_rc = 0;
66         
67         strcpy(globals.xinput_device, "");
68         globals.xinput_enable=0;
69         
70         globals.update_idle=14;
71         globals.update_delay=1;
72         
73         strcpy(globals.oss_device, "/dev/dsp");
74         globals.oss_buff_no=2;
75         globals.oss_buff_size=9;
76         globals.oss_samplerate=44100;
77
78         strcpy(globals.alsa_device_id, "hw:0,0");       
79         globals.alsa_buffer_time=80000;
80         globals.alsa_period_time=20000;
81         globals.alsa_samplerate=44100;
82
83         globals.pulse_buffer_length=320;
84
85         globals.sense_cycles=80;
86         
87         globals.mouse_speed=0.8;
88         
89         globals.width=800;
90         globals.height=440;     
91         
92         globals.tooltips=1;
93         
94         globals.use_stdout=0;
95         globals.use_stdout_from_conf_file=0;
96         
97         globals.show_nag=1;
98         globals.input_fallback_warning=1;
99         globals.prelis=1;
100         
101         strcpy(globals.last_fn,"");
102         
103         globals.pitch=1.0;
104         globals.volume=1.0;
105         globals.gui_wrap=3;
106         
107         globals.flash_response=0.95;
108         globals.knob_size_override=0;
109         
110         globals.button_type=BUTTON_TYPE_BOTH;
111                 
112         globals.true_block_size=0;
113         
114         strcpy(globals.tables_filename, "");
115         strcpy(globals.record_filename, "tX_record.wav");
116         strcpy(globals.file_editor, "");
117
118 #ifdef USE_PULSE
119         globals.audiodevice_type=ALSA;
120 #else   
121 #ifdef USE_ALSA
122         globals.audiodevice_type=ALSA;
123 #else
124 #ifdef USE_OSS
125         globals.audiodevice_type=OSS;
126 #endif  
127 #endif  
128 #endif
129         globals.use_stdout_cmdline=0;
130         strcpy(globals.current_path, "");
131         strcpy(globals.lrdf_path, "/usr/share/ladspa/rdf:/usr/local/share/ladspa/rdf");
132         globals.fullscreen_enabled=0;
133         globals.confirm_events=0;
134         globals.compress_set_files=0;
135         
136         globals.vtt_inertia=10.0;
137         
138         globals.alsa_free_hwstats=0;
139         globals.filename_length=20;
140         globals.restore_midi_connections=1;
141
142         globals.wav_display_history=1;
143
144         strcpy(globals.wav_display_bg_focus, "#00004C");
145         strcpy(globals.wav_display_bg_no_focus, "#000000");
146
147         strcpy(globals.wav_display_fg_focus, "#FFFF00");
148         strcpy(globals.wav_display_fg_no_focus, "#00FF00");
149
150         strcpy(globals.wav_display_cursor, "#FF6666");
151         strcpy(globals.wav_display_cursor_mute, "#FFFFFF");     
152         
153         strcpy(globals.vu_meter_bg, "#000000");
154         strcpy(globals.vu_meter_loud, "#FF0000");
155         strcpy(globals.vu_meter_normal, "#00FF00");     
156         globals.vu_meter_border_intensity=0.7;
157         globals.quit_confirm=1;
158         globals.use_realtime=1;
159         globals.auto_assign_midi=0;
160         
161         globals.verbose_plugin_loading=0;
162         globals.force_nonrt_plugins=0;  
163 }
164
165 int load_globals_xml() {
166         char rc_name[PATH_MAX]="";      
167         char device_type[16]="oss";
168         xmlDocPtr doc;
169         xmlNodePtr cur;
170         int elementFound;
171         double dvalue;
172         char tmp_xml_buffer[4096];
173         
174         get_rc_name(rc_name, sizeof(rc_name));
175         
176         doc = xmlParseFile(rc_name);
177         
178         if (doc == NULL ) {
179                 fprintf(stderr, "tX: err: Error parsing terminatorXrc.\n");
180                 return 1;
181         }
182         
183         cur = xmlDocGetRootElement(doc);
184         
185         if (cur == NULL) {
186                 fprintf(stderr,"tX: err: terminatorXrc contains no elements.\n");
187                 xmlFreeDoc(doc);
188                 return 2;
189         }
190         
191         if (xmlStrcmp(cur->name, (const xmlChar *) "terminatorXrc")) {
192                 fprintf(stderr,"tX: err: This terminatorXrc is not a terminatorXrc.");
193                 xmlFreeDoc(doc);
194                 return 3;
195         }
196                 
197         for (cur=cur->xmlChildrenNode; cur != NULL; cur = cur->next) {
198                 if (cur->type == XML_ELEMENT_NODE) {                    
199                         elementFound=0;
200
201                         restore_int("store_globals", globals.store_globals);
202
203                         restore_string("audio_driver", device_type);
204                         
205                         restore_string("oss_device", globals.oss_device);
206                         restore_int("oss_buff_no", globals.oss_buff_no);
207                         restore_int("oss_buff_size", globals.oss_buff_size);
208                         restore_int("oss_samplerate", globals.oss_samplerate);
209
210                         restore_string("alsa_device_id", globals.alsa_device_id);
211                         restore_int("alsa_buffer_time", globals.alsa_buffer_time);
212                         restore_int("alsa_period_time", globals.alsa_period_time);
213                         restore_int("alsa_samplerate", globals.alsa_samplerate);
214                         restore_int("alsa_free_hwstats", globals.alsa_free_hwstats);
215                         
216                         restore_int("pulse_buffer_length", globals.pulse_buffer_length);
217
218                         restore_string("xinput_device", globals.xinput_device);
219                         restore_int("xinput_enable", globals.xinput_enable);
220                         restore_int("update_idle", globals.update_idle);
221                         restore_int("update_delay", globals.update_delay);
222                         restore_int("sense_cycles", globals.sense_cycles);
223                         restore_float("mouse_speed", globals.mouse_speed);
224                         restore_int("width", globals.width);
225                         restore_int("height", globals.height);
226                         restore_int("filename_length", globals.filename_length);
227                         restore_int("tooltips", globals.tooltips);
228                         restore_int("use_stdout", globals.use_stdout);
229                         restore_int("show_nag", globals.show_nag);
230                         restore_int("input_fallback_warning", globals.input_fallback_warning);
231                         restore_int("prelis", globals.prelis);
232                         restore_string("last_fn", globals.last_fn);
233                         restore_float("pitch", globals.pitch);
234                         restore_float("volume", globals.volume);
235                         restore_float("flash_response", globals.flash_response);
236                         restore_int("knob_size_override", globals.knob_size_override);
237                         restore_int("button_type", globals.button_type);
238                         restore_string("tables_filename", globals.tables_filename);
239                         restore_string("record_filename", globals.record_filename);
240                         restore_string("file_editor", globals.file_editor);
241                         restore_string("lrdf_path", globals.lrdf_path);
242                         restore_string("last_path", globals.current_path);
243                         
244                         restore_int("compress_set_files", globals.compress_set_files);
245                         restore_int("fullscreen_enabled", globals.fullscreen_enabled);
246                         restore_int("confirm_events", globals.confirm_events);
247                         restore_float("vtt_inertia", globals.vtt_inertia);
248                         restore_int("restore_midi_connections", globals.restore_midi_connections);
249
250                         restore_int("wav_display_history", globals.wav_display_history);
251                         restore_string("wav_display_bg_focus", globals.wav_display_bg_focus);
252                         restore_string("wav_display_bg_no_focus", globals.wav_display_bg_no_focus);
253                         restore_string("wav_display_fg_focus", globals.wav_display_fg_focus);
254                         restore_string("wav_display_fg_no_focus", globals.wav_display_fg_no_focus);
255                         restore_string("wav_display_cursor", globals.wav_display_cursor);
256                         restore_string("wav_display_cursor_mute", globals.wav_display_cursor_mute);
257                         
258                         restore_string("vu_meter_bg", globals.vu_meter_bg);
259                         restore_string("vu_meter_normal", globals.vu_meter_normal);
260                         restore_string("vu_meter_loud", globals.vu_meter_loud);
261                         
262                         restore_float("vu_meter_border_intensity", globals.vu_meter_border_intensity);
263
264                         restore_int("quit_confirm", globals.quit_confirm);
265                         restore_int("use_realtime", globals.use_realtime);
266                         restore_int("auto_assign_midi", globals.auto_assign_midi);
267                         restore_int("force_nonrt_plugins", globals.force_nonrt_plugins);
268                         restore_int("verbose_plugin_loading", globals.verbose_plugin_loading);
269
270 #ifdef USE_ALSA_MIDI_IN
271                         if (!elementFound && (xmlStrcmp(cur->name, (xmlChar *) "midi_connections")==0)) {
272                                 if (globals.restore_midi_connections) {
273                                         tX_midiin_restore_connections(cur);
274                                 }
275                                 elementFound=1;
276                         }
277 #endif                  
278
279                         if (!elementFound) {
280                                 fprintf(stderr, "tX: Unhandled XML element: \"%s\"\n", cur->name);
281                         }
282                 }
283         }
284
285         xmlFreeDoc(doc);
286         
287         if (strcmp(device_type, "alsa")==0) { globals.audiodevice_type=ALSA; }
288         else if (strcmp(device_type, "jack")==0) { globals.audiodevice_type=JACK; }
289         else if (strcmp(device_type, "pulse")==0) { globals.audiodevice_type=PULSE; }
290         else globals.audiodevice_type=OSS;
291         
292         return 0;
293 }
294
295 void store_globals() {
296         char rc_name[PATH_MAX+256]="";
297         char device_type[16];
298         char indent[32]="\t";
299         FILE *rc=NULL;
300         gzFile rz=NULL;
301         char tmp_xml_buffer[4096];
302         _store_compress_xml=0;
303         
304         get_rc_name(rc_name, sizeof(rc_name));
305
306         rc=fopen(rc_name, "w");
307         
308         switch (globals.audiodevice_type) {
309                 case PULSE:
310                         strcpy(device_type, "pulse");
311                         break;
312                 case JACK:
313                         strcpy(device_type, "jack");
314                         break;
315                 case ALSA:
316                         strcpy(device_type, "alsa");
317                         break;
318                 case OSS:
319                 default:
320                         strcpy(device_type, "oss");
321         }
322         
323         if (rc) {               
324                 fprintf(rc, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n\n");
325                 fprintf(rc, "<!-- Warning: this file will be rewritten by terminatorX on exit!\n     Don\'t waste your time adding comments - they will be erased -->\n\n" );
326                 fprintf(rc, "<terminatorXrc version=\"%s\">\n", TX_XML_RC_VERSION);
327
328                 store_int("store_globals", globals.store_globals);
329
330                 store_string("audio_driver", device_type);
331                 
332                 store_string("oss_device", globals.oss_device);
333                 store_int("oss_buff_no", globals.oss_buff_no);
334                 store_int("oss_buff_size", globals.oss_buff_size);
335                 store_int("oss_samplerate", globals.oss_samplerate);
336
337                 store_string("alsa_device_id", globals.alsa_device_id);
338                 store_int("alsa_buffer_time", globals.alsa_buffer_time);
339                 store_int("alsa_period_time", globals.alsa_period_time);
340                 store_int("alsa_samplerate", globals.alsa_samplerate);          
341                 store_int("alsa_free_hwstats", globals.alsa_free_hwstats);
342                 
343                 store_int("pulse_buffer_length", globals.pulse_buffer_length);
344
345                 store_string("xinput_device", globals.xinput_device);
346                 store_int("xinput_enable", globals.xinput_enable);
347                 store_int("update_idle", globals.update_idle);
348                 store_int("update_delay", globals.update_delay);
349                 store_int("sense_cycles", globals.sense_cycles);
350                 store_float("mouse_speed", globals.mouse_speed);
351                 store_int("width", globals.width);
352                 store_int("height", globals.height);
353                 store_int("filename_length", globals.filename_length);
354                 store_int("tooltips", globals.tooltips);
355                 store_int("use_stdout", globals.use_stdout);
356                 // globals.use_stdout_from_conf_file=0; What the heck is this?
357                 store_int("show_nag", globals.show_nag);
358                 store_int("input_fallback_warning", globals.input_fallback_warning);
359                 store_int("prelis", globals.prelis);
360                 store_string("last_fn", globals.last_fn);
361                 store_float("pitch", globals.pitch);
362                 store_float("volume", globals.volume);
363                 store_float("flash_response", globals.flash_response);
364                 store_int("knob_size_override", globals.knob_size_override);
365                 store_int("button_type", globals.button_type);
366                 store_string("tables_filename", globals.tables_filename);
367                 store_string("record_filename", globals.record_filename);
368                 store_string("file_editor", globals.file_editor);
369                 store_string("lrdf_path", globals.lrdf_path);
370                 store_int("compress_set_files", globals.compress_set_files);
371                 store_int("fullscreen_enabled", globals.fullscreen_enabled);
372                 store_int("confirm_events", globals.confirm_events);
373                 store_float("vtt_inertia", globals.vtt_inertia);
374
375                 store_string("last_path", globals.current_path);
376                 store_int("restore_midi_connections", globals.restore_midi_connections);
377
378                 store_int("wav_display_history", globals.wav_display_history);
379                 store_string("wav_display_bg_focus", globals.wav_display_bg_focus);
380                 store_string("wav_display_bg_no_focus", globals.wav_display_bg_no_focus);
381                 store_string("wav_display_fg_focus", globals.wav_display_fg_focus);
382                 store_string("wav_display_fg_no_focus", globals.wav_display_fg_no_focus);
383                 store_string("wav_display_cursor", globals.wav_display_cursor);
384                 store_string("wav_display_cursor_mute", globals.wav_display_cursor_mute);
385
386                 store_string("vu_meter_bg", globals.vu_meter_bg);
387                 store_string("vu_meter_normal", globals.vu_meter_normal);
388                 store_string("vu_meter_loud", globals.vu_meter_loud);
389                         
390                 store_float("vu_meter_border_intensity", globals.vu_meter_border_intensity);
391
392                 store_int("quit_confirm", globals.quit_confirm);
393                 store_int("use_realtime", globals.use_realtime);
394                 store_int("auto_assign_midi", globals.auto_assign_midi);
395                 
396                 store_int("verbose_plugin_loading", globals.verbose_plugin_loading);
397                 store_int("force_nonrt_plugins", globals.force_nonrt_plugins);
398
399 #ifdef USE_ALSA_MIDI_IN
400                 tX_midiin_store_connections(rc, indent);
401 #endif          
402
403                 fprintf(rc,"</terminatorXrc>\n");
404         }
405 }
406
407 #ifdef ENABLE_TX_LEGACY
408 extern void load_globals_old();
409 #endif
410
411 void load_globals() {
412         set_global_defaults();
413
414         if (load_globals_xml()!=0) {
415                 fprintf(stderr, "tX: Failed loading terminatorXrc - trying to load old binary rc.\n");
416 #ifdef ENABLE_TX_LEGACY         
417                 load_globals_old();
418 #endif          
419         }
420 }
421
422 char *encode_xml(char *dest, const char *src) {
423         int i, t, max;
424         char tmp[4096];
425         int outlen=4096;
426         int inlen;
427         int res;
428         
429         tmp[0]=0;
430         t=0;
431         max=strlen(src);
432         
433         for (i=0; i<max; i++) {
434                 switch (src[i]) {
435                         case '<': tmp[t]=0; strcat(tmp, "&lt;"); t+=4; break;
436                         case '>': tmp[t]=0; strcat(tmp, "&gt;"); t+=4; break;
437                         case '&': tmp[t]=0; strcat(tmp, "&amp;"); t+=5; break;
438                         case '"': tmp[t]=0; strcat(tmp, "&quot;"); t+=6; break;
439                         case '\'': strcat(tmp, "&apos;"); t+=7; break;
440                         default: tmp[t]=src[i]; t++;
441                 }
442         }
443         tmp[t]=0;
444
445         inlen=t;
446         res=isolat1ToUTF8((unsigned char *) dest, &outlen, (unsigned char *) tmp, &inlen);
447         dest[outlen]=0;
448         if (res<0) {
449                 tX_error("failed to encode string (%s) to UTF-8.", src);
450         }
451         
452         return dest;
453 }
454
455 char *decode_xml(char *dest, const char *src) {
456         int inlen=strlen(src);
457         int outlen=4096;
458         
459         int res=UTF8Toisolat1((unsigned char *) dest, &outlen, (const unsigned char *) src, &inlen);
460         dest[outlen]=0;
461         
462         if (res<0) {
463                 tX_error("failed to decode UTF-8 string (%s).", src);
464         }
465         
466         return dest;
467 }