bc7bd9d605829e82ad2a7f1ebdc29bee237c1c64
[terminatorX.git] / src / tX_global.c
1 /*
2     terminatorX - realtime audio scratching software
3     Copyright (C) 1999-2003  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, write to the Free Software
17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  
19     File: tX_global.c
20  
21     Description:  This file contains the routines for handling the
22                   "globals" block. Intializing, reading setup from
23                   disk and storing it.
24                   
25     Changes:
26     
27     21 Jul 1999: introduced the lowpass globals.
28         There were some changes in between...
29         14 Jul 2002: switched to libxml instead of binary saving.
30 */    
31
32 #include <config.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include "tX_types.h"
36 #include "tX_global.h"
37 #include "string.h"
38 #include <libxml/xmlmemory.h>
39 #include <libxml/parser.h>
40 #include <libxml/encoding.h>
41
42
43 #define TX_XML_RC_VERSION "1.0"
44
45 tx_global globals;
46 int _store_compress_xml=0;
47
48 void get_rc_name(char *buffer)
49 {
50         strcpy(buffer,"");
51         if (globals.alternate_rc)
52         {
53                 strcpy(buffer, globals.alternate_rc);
54         }
55         else 
56         {
57                 if (getenv("HOME"))
58                 {
59                         strcpy(buffer, getenv("HOME"));
60                         if (buffer[strlen(buffer)-1]!='/')
61                         strcat(buffer, "/");
62                 }
63                 strcat(buffer, ".terminatorXrc");
64         }
65 }
66
67 void set_global_defaults() {
68         globals.startup_set = 0;
69         globals.store_globals = 1;
70         globals.no_gui = 0;
71         globals.alternate_rc = 0;
72         
73         strcpy(globals.xinput_device, "");
74         globals.xinput_enable=0;
75         
76         globals.update_idle=18;
77         globals.update_delay=1;
78         
79         strcpy(globals.oss_device, "/dev/dsp");
80         globals.oss_buff_no=2;
81         globals.oss_buff_size=9;
82         globals.oss_samplerate=44100;
83
84         strcpy(globals.alsa_device, "00-00: Default");  
85         globals.alsa_buffer_time=10000;
86         globals.alsa_period_time=5000;
87         globals.alsa_samplerate=44100;
88         
89         globals.sense_cycles=12;
90         
91         globals.mouse_speed=0.8;
92         
93         globals.width=800;
94         globals.height=440;     
95         
96         globals.tooltips=1;
97         
98         globals.use_stdout=0;
99         globals.use_stdout_from_conf_file=0;
100         
101         globals.show_nag=1;
102         globals.prelis=1;
103         
104         strcpy(globals.last_fn,"");
105         
106         globals.pitch=1.0;
107         globals.volume=1.0;
108         globals.gui_wrap=3;
109         
110         globals.flash_response=0.95;
111         
112         globals.button_type=BUTTON_TYPE_BOTH;
113                 
114         globals.true_block_size=0;
115         
116         strcpy(globals.tables_filename, "");
117         strcpy(globals.record_filename, "tX_record.wav");
118         strcpy(globals.file_editor, "");
119                 
120 #ifdef USE_OSS
121         globals.audiodevice_type=OSS;           
122 #else
123 #ifdef USE_ALSA
124         globals.audiodevice_type=ALSA;
125 #endif  
126 #endif          
127         globals.use_stdout_cmdline=0;
128         globals.current_path = NULL;
129         globals.pitch=1.0;
130         globals.volume=1.0;
131         
132         strcpy(globals.lrdf_path, "/usr/share/ladspa/rdf:/usr/local/share/ladspa/rdf");
133         globals.fullscreen_enabled=1;
134         globals.compress_set_files=0;
135 }
136
137 int load_globals_xml() {
138         char rc_name[PATH_MAX]="";      
139         char device_type[16]="oss";
140         xmlDocPtr doc;
141         xmlNodePtr cur;
142         int elementFound;
143         double dvalue;
144         char tmp_xml_buffer[4096];
145         
146         get_rc_name(rc_name);
147         
148         doc = xmlParseFile(rc_name);
149         
150         if (doc == NULL ) {
151                 fprintf(stderr, "tX: err: Error parsing terminatorXrc.\n");
152                 return 1;
153         }
154         
155         cur = xmlDocGetRootElement(doc);
156         
157         if (cur == NULL) {
158                 fprintf(stderr,"tX: err: terminatorXrc contains no elements.\n");
159                 xmlFreeDoc(doc);
160                 return 2;
161         }
162         
163         if (xmlStrcmp(cur->name, (const xmlChar *) "terminatorXrc")) {
164                 fprintf(stderr,"tX: err: This terminatorXrc is not a terminatorXrc.");
165                 xmlFreeDoc(doc);
166                 return 3;
167         }
168                 
169         for (cur=cur->xmlChildrenNode; cur != NULL; cur = cur->next) {
170                 if (cur->type == XML_ELEMENT_NODE) {                    
171                         elementFound=0;
172
173                         restore_int("store_globals", globals.store_globals);
174
175                         restore_string("audio_driver", device_type);
176                         
177                         restore_string("oss_device", globals.oss_device);
178                         restore_int("oss_buff_no", globals.oss_buff_no);
179                         restore_int("oss_buff_size", globals.oss_buff_size);
180                         restore_int("oss_samplerate", globals.oss_samplerate);
181
182                         restore_string("alsa_device", globals.alsa_device);
183                         restore_int("alsa_buffer_time", globals.alsa_buffer_time);
184                         restore_int("alsa_period_time", globals.alsa_period_time);
185                         restore_int("alsa_samplerate", globals.alsa_samplerate);
186
187                         restore_string("xinput_device", globals.xinput_device);
188                         restore_int("xinput_enable", globals.xinput_enable);
189                         restore_int("update_idle", globals.update_idle);
190                         restore_int("update_delay", globals.update_delay);
191                         restore_int("sense_cycles", globals.sense_cycles);
192                         restore_float("mouse_speed", globals.mouse_speed);
193                         restore_int("width", globals.width);
194                         restore_int("height", globals.height);
195                         restore_int("tooltips", globals.tooltips);
196                         restore_int("use_stdout", globals.use_stdout);
197                         restore_int("show_nag", globals.show_nag);
198                         restore_int("prelis", globals.prelis);
199                         restore_string("last_fn", globals.last_fn);
200                         restore_float("pitch", globals.pitch);
201                         restore_float("volume", globals.volume);
202                         restore_float("flash_response", globals.flash_response);
203                         restore_int("button_type", globals.button_type);
204                         restore_string("tables_filename", globals.tables_filename);
205                         restore_string("record_filename", globals.record_filename);
206                         restore_string("file_editor", globals.file_editor);
207                         restore_string("lrdf_path", globals.lrdf_path);
208                         
209                         restore_int("compress_set_files", globals.compress_set_files);
210                         restore_int("fullscreen_enabled", globals.fullscreen_enabled);
211
212                         if (!elementFound) {
213                                 fprintf(stderr, "tX: Unhandled XML element: \"%s\"\n", cur->name);
214                         }
215                 }
216         }
217
218         xmlFreeDoc(doc);
219         
220         if (strcmp(device_type, "alsa")==0) globals.audiodevice_type=ALSA;
221         else if (strcmp(device_type, "jack")==0) globals.audiodevice_type=JACK;
222         else globals.audiodevice_type=OSS;
223         
224         return 0;
225 }
226
227 void store_globals() {
228         char rc_name[PATH_MAX]="";
229         char device_type[16];
230         char indent[]="\t";
231         FILE *rc;
232         gzFile rz;
233         _store_compress_xml=0;
234         char tmp_xml_buffer[4096];
235         
236         get_rc_name(rc_name);
237
238         rc=fopen(rc_name, "w");
239         
240         switch (globals.audiodevice_type) {
241                 case JACK:
242                         strcpy(device_type, "jack");
243                         break;
244                 case ALSA:
245                         strcpy(device_type, "alsa");
246                         break;
247                 case OSS:
248                 default:
249                         strcpy(device_type, "oss");
250                 
251         }
252         
253         if (rc) {               
254                 fprintf(rc, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n\n");
255                 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" );
256                 fprintf(rc, "<terminatorXrc version=\"%s\">\n", TX_XML_RC_VERSION);
257
258                 store_int("store_globals", globals.store_globals);
259
260                 store_string("audio_driver", device_type);
261                 
262                 store_string("oss_device", globals.oss_device);
263                 store_int("oss_buff_no", globals.oss_buff_no);
264                 store_int("oss_buff_size", globals.oss_buff_size);
265                 store_int("oss_samplerate", globals.oss_samplerate);
266
267                 store_string("alsa_device", globals.alsa_device);
268                 store_int("alsa_buffer_time", globals.alsa_buffer_time);
269                 store_int("alsa_period_time", globals.alsa_period_time);
270                 store_int("alsa_samplerate", globals.alsa_samplerate);          
271                 
272                 store_string("xinput_device", globals.xinput_device);
273                 store_int("xinput_enable", globals.xinput_enable);
274                 store_int("update_idle", globals.update_idle);
275                 store_int("update_delay", globals.update_delay);
276                 store_int("sense_cycles", globals.sense_cycles);
277                 store_float("mouse_speed", globals.mouse_speed);
278                 store_int("width", globals.width);
279                 store_int("height", globals.height);
280                 store_int("tooltips", globals.tooltips);
281                 store_int("use_stdout", globals.use_stdout);
282                 // globals.use_stdout_from_conf_file=0; What the heck is this?
283                 store_int("show_nag", globals.show_nag);
284                 store_int("prelis", globals.prelis);
285                 store_string("last_fn", globals.last_fn);
286                 store_float("pitch", globals.pitch);
287                 store_float("volume", globals.volume);
288                 store_float("flash_response", globals.flash_response);
289                 store_int("button_type", globals.button_type);
290                 store_string("tables_filename", globals.tables_filename);
291                 store_string("record_filename", globals.record_filename);
292                 store_string("file_editor", globals.file_editor);
293                 store_string("lrdf_path", globals.lrdf_path);
294                 store_int("compress_set_files", globals.compress_set_files);
295                 store_int("fullscreen_enabled", globals.fullscreen_enabled);
296                 
297                 fprintf(rc,"</terminatorXrc>\n");
298         }
299 }
300
301 #ifdef ENABLE_TX_LEGACY
302 extern void load_globals_old();
303 #endif
304
305 void load_globals() {
306         set_global_defaults();
307
308         if (load_globals_xml()!=0) {
309                 fprintf(stderr, "tX: Failed loading terminatorXrc - trying to load old binary rc.\n");
310 #ifdef ENABLE_TX_LEGACY         
311                 load_globals_old();
312 #endif          
313         }
314 }
315
316 char *encode_xml(char *dest, const char *src) {
317         int i, t, max;
318         char tmp[4096];
319         
320         tmp[0]=0;
321         t=0;
322         max=strlen(src);
323         
324         for (i=0; i<max; i++) {
325                 switch (src[i]) {
326                         case '<': tmp[t]=0; strcat(tmp, "&lt;"); t+=4; break;
327                         case '>': tmp[t]=0; strcat(tmp, "&gt;"); t+=4; break;
328                         case '&': tmp[t]=0; strcat(tmp, "&amp;"); t+=5; break;
329                         case '"': tmp[t]=0; strcat(tmp, "&quot;"); t+=6; break;
330                         case '\'': strcat(tmp, "&apos;"); t+=7; break;
331                         default: tmp[t]=src[i]; t++;
332                 }
333         }
334         tmp[t]=0;
335
336         int outlen=4096;
337         int inlen=t;
338         
339         int res=isolat1ToUTF8((unsigned char *) dest, &outlen, (unsigned char *) tmp, &inlen);
340         dest[outlen]=0;
341         if (res<0) {
342                 tX_error("failed to encode string (%s) to UTF-8.", src);
343         }
344         
345         //tX_debug("encode_xml: from \"%s\" to \"%s\".", src, dest); 
346         return dest;
347 }
348
349 char *decode_xml(char *dest, const char *src) {
350         int inlen=strlen(src);
351         int outlen=4096;
352         
353         int res=UTF8Toisolat1(dest, &outlen, src, &inlen);
354         dest[outlen]=0;
355         
356         if (res<0) {
357                 tX_error("failed to decode UTF-8 string (%s).", src);
358         }
359         
360         return dest;
361 }
362