terminatorX/src/tX_global.c

   1 /*
   2     terminatorX - realtime audio scratching software
   3     Copyright (C) 1999-2003  Alexander König
   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
  41 #define TX_XML_RC_VERSION "1.0"
  42
  43 tx_global globals;
  44
  45 void get_rc_name(char *buffer)
  46 {
  47         strcpy(buffer,"");
  48         if (globals.alternate_rc)
  49         {
  50                 strcpy(buffer, globals.alternate_rc);
  51         }
  52         else
  53         {
  54                 if (getenv("HOME"))
  55                 {
  56                         strcpy(buffer, getenv("HOME"));
  57                         if (buffer[strlen(buffer)-1]!='/')
  58                         strcat(buffer, "/");
  59                 }
  60                 strcat(buffer, ".terminatorXrc");
  61         }
  62 }
  63
  64 void set_global_defaults() {
  65         globals.startup_set = 0;
  66         globals.store_globals = 1;
  67         globals.no_gui = 0;
  68         globals.alternate_rc = 0;
  69
  70         strcpy(globals.xinput_device, "");
  71         globals.xinput_enable=0;
  72
  73         globals.update_idle=18;
  74         globals.update_delay=1;
  75
  76         strcpy(globals.oss_device, "/dev/dsp");
  77         globals.oss_buff_no=2;
  78         globals.oss_buff_size=9;
  79         globals.oss_samplerate=44100;
  80
  81         strcpy(globals.alsa_device, "00-00: Default");
  82         globals.alsa_buff_no=2;
  83         globals.alsa_buff_size=1024;
  84         globals.alsa_samplerate=44100;
  85
  86         globals.sense_cycles=12;
  87
  88         globals.mouse_speed=0.8;
  89
  90         globals.width=800;
  91         globals.height=440;
  92
  93         globals.tooltips=1;
  94
  95         globals.use_stdout=0;
  96         globals.use_stdout_from_conf_file=0;
  97
  98         globals.show_nag=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
 109         globals.button_type=BUTTON_TYPE_BOTH;
 110
 111         globals.true_block_size=0;
 112
 113         strcpy(globals.tables_filename, "");
 114         strcpy(globals.record_filename, "tX_record.wav");
 115         strcpy(globals.file_editor, "");
 116
 117 #ifdef USE_OSS
 118         globals.audiodevice_type=OSS;
 119 #else
 120 #ifdef USE_ALSA
 121         globals.audiodevice_type=ALSA;
 122 #endif
 123 #endif
 124         globals.use_stdout_cmdline=0;
 125         globals.current_path = NULL;
 126         globals.pitch=1.0;
 127         globals.volume=1.0;
 128
 129         strcpy(globals.lrdf_path, "/usr/share/ladspa/rdf:/usr/local/share/ladspa/rdf");
 130         globals.fullscreen_enabled=1;
 131 }
 132
 133 int load_globals_xml() {
 134         char rc_name[PATH_MAX]="";
 135         char device_type[16]="oss";
 136         xmlDocPtr doc;
 137         xmlNodePtr cur;
 138         int elementFound;
 139         double dvalue;
 140
 141         get_rc_name(rc_name);
 142
 143         doc = xmlParseFile(rc_name);
 144
 145         if (doc == NULL ) {
 146                 fprintf(stderr, "tX: err: Error parsing terminatorXrc.\n");
 147                 return 1;
 148         }
 149
 150         cur = xmlDocGetRootElement(doc);
 151
 152         if (cur == NULL) {
 153                 fprintf(stderr,"tX: err: terminatorXrc contains no elements.\n");
 154                 xmlFreeDoc(doc);
 155                 return 2;
 156         }
 157
 158         if (xmlStrcmp(cur->name, (const xmlChar *) "terminatorXrc")) {
 159                 fprintf(stderr,"tX: err: This terminatorXrc is not a terminatorXrc.");
 160                 xmlFreeDoc(doc);
 161                 return 3;
 162         }
 163
 164         for (cur=cur->xmlChildrenNode; cur != NULL; cur = cur->next) {
 165                 if (cur->type == XML_ELEMENT_NODE) {
 166                         elementFound=0;
 167
 168                         restore_int("store_globals", globals.store_globals);
 169
 170                         restore_string("audio_driver", device_type);
 171
 172                         restore_string("oss_device", globals.oss_device);
 173                         restore_int("oss_buff_no", globals.oss_buff_no);
 174                         restore_int("oss_buff_size", globals.oss_buff_size);
 175                         restore_int("oss_samplerate", globals.oss_samplerate);
 176
 177                         restore_string("alsa_device", globals.alsa_device);
 178                         restore_int("alsa_buff_no", globals.alsa_buff_no);
 179                         restore_int("alsa_buff_size", globals.alsa_buff_size);
 180                         restore_int("alsa_samplerate", globals.alsa_samplerate);
 181
 182                         restore_string("xinput_device", globals.xinput_device);
 183                         restore_int("xinput_enable", globals.xinput_enable);
 184                         restore_int("update_idle", globals.update_idle);
 185                         restore_int("update_delay", globals.update_delay);
 186                         restore_int("sense_cycles", globals.sense_cycles);
 187                         restore_float("mouse_speed", globals.mouse_speed);
 188                         restore_int("width", globals.width);
 189                         restore_int("height", globals.height);
 190                         restore_int("tooltips", globals.tooltips);
 191                         restore_int("use_stdout", globals.use_stdout);
 192                         restore_int("show_nag", globals.show_nag);
 193                         restore_int("prelis", globals.prelis);
 194                         restore_string("last_fn", globals.last_fn);
 195                         restore_float("pitch", globals.pitch);
 196                         restore_float("volume", globals.volume);
 197                         restore_float("flash_response", globals.flash_response);
 198                         restore_int("button_type", globals.button_type);
 199                         restore_string("tables_filename", globals.tables_filename);
 200                         restore_string("record_filename", globals.record_filename);
 201                         restore_string("file_editor", globals.file_editor);
 202                         restore_string("lrdf_path", globals.lrdf_path);
 203
 204                         restore_int("fullscreen_enabled", globals.fullscreen_enabled);
 205
 206                         if (!elementFound) {
 207                                 fprintf(stderr, "tX: Unhandled XML element: \"%s\"\n", cur->name);
 208                         }
 209                 }
 210         }
 211
 212         xmlFreeDoc(doc);
 213
 214         if (strcmp(device_type, "alsa")==0) globals.audiodevice_type=ALSA;
 215         else if (strcmp(device_type, "jack")==0) globals.audiodevice_type=JACK;
 216         else globals.audiodevice_type=OSS;
 217
 218         return 0;
 219 }
 220
 221 void store_globals() {
 222         char rc_name[PATH_MAX]="";
 223         char device_type[16];
 224         char indent[]="\t";
 225         FILE *rc;
 226         char tmp_xml_buffer[4096];
 227
 228         get_rc_name(rc_name);
 229
 230         rc=fopen(rc_name, "w");
 231
 232         switch (globals.audiodevice_type) {
 233                 case JACK:
 234                         strcpy(device_type, "jack");
 235                         break;
 236                 case ALSA:
 237                         strcpy(device_type, "alsa");
 238                         break;
 239                 case OSS:
 240                 default:
 241                         strcpy(device_type, "oss");
 242
 243         }
 244
 245         if (rc) {
 246                 fprintf(rc, "<?xml version=\"1.0\" encoding=\"US-ASCII\"?>\n\n");
 247                 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" );
 248                 fprintf(rc, "<terminatorXrc version=\"%s\">\n", TX_XML_RC_VERSION);
 249
 250                 store_int("store_globals", globals.store_globals);
 251
 252                 store_string("audio_driver", device_type);
 253
 254                 store_string("oss_device", globals.oss_device);
 255                 store_int("oss_buff_no", globals.oss_buff_no);
 256                 store_int("oss_buff_size", globals.oss_buff_size);
 257                 store_int("oss_samplerate", globals.oss_samplerate);
 258
 259                 store_string("alsa_device", globals.alsa_device);
 260                 store_int("alsa_buff_no", globals.alsa_buff_no);
 261                 store_int("alsa_buff_size", globals.alsa_buff_size);
 262                 store_int("alsa_samplerate", globals.alsa_samplerate);
 263
 264                 store_string("xinput_device", globals.xinput_device);
 265                 store_int("xinput_enable", globals.xinput_enable);
 266                 store_int("update_idle", globals.update_idle);
 267                 store_int("update_delay", globals.update_delay);
 268                 store_int("sense_cycles", globals.sense_cycles);
 269                 store_float("mouse_speed", globals.mouse_speed);
 270                 store_int("width", globals.width);
 271                 store_int("height", globals.height);
 272                 store_int("tooltips", globals.tooltips);
 273                 store_int("use_stdout", globals.use_stdout);
 274                 // globals.use_stdout_from_conf_file=0; What the heck is this?
 275                 store_int("show_nag", globals.show_nag);
 276                 store_int("prelis", globals.prelis);
 277                 store_string("last_fn", globals.last_fn);
 278                 store_float("pitch", globals.pitch);
 279                 store_float("volume", globals.volume);
 280                 store_float("flash_response", globals.flash_response);
 281                 store_int("button_type", globals.button_type);
 282                 store_string("tables_filename", globals.tables_filename);
 283                 store_string("record_filename", globals.record_filename);
 284                 store_string("file_editor", globals.file_editor);
 285                 store_string("lrdf_path", globals.lrdf_path);
 286                 store_int("fullscreen_enabled", globals.fullscreen_enabled);
 287
 288                 fprintf(rc,"</terminatorXrc>\n");
 289         }
 290 }
 291
 292 #ifdef ENABLE_TX_LEGACY
 293 extern void load_globals_old();
 294 #endif
 295
 296 void load_globals() {
 297         set_global_defaults();
 298
 299         if (load_globals_xml()!=0) {
 300                 fprintf(stderr, "tX: Failed loading terminatorXrc - trying to load old binary rc.\n");
 301 #ifdef ENABLE_TX_LEGACY
 302                 load_globals_old();
 303 #endif
 304         }
 305 }
 306
 307 char *encode_xml(char *dest, const char *src) {
 308         int i, t, max;
 309
 310         dest[0]=0;
 311         t=0;
 312         max=strlen(src);
 313
 314         for (i=0; i<max; i++) {
 315                 switch (src[i]) {
 316                         case '<': dest[t]=0; strcat(dest, "&lt;"); t+=4; break;
 317                         case '>': dest[t]=0; strcat(dest, "&gt;"); t+=4; break;
 318                         case '&': dest[t]=0; strcat(dest, "&amp;"); t+=5; break;
 319                         case '"': dest[t]=0; strcat(dest, "&quot;"); t+=6; break;
 320                         case '\'': strcat(dest, "&apos;"); t+=7; break;
 321                         default: dest[t]=src[i]; t++;
 322                 }
 323         }
 324         dest[t]=0;
 325
 326         //tX_debug("encode_xml: from \"%s\" to \"%s\".", src, dest);
 327         return dest;
 328 }