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 #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=14;
  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=80000;
  86         globals.alsa_period_time=20000;
  87         globals.alsa_samplerate=44100;
  88
  89         globals.sense_cycles=80;
  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=0;
 134         globals.confirm_events=0;
 135         globals.compress_set_files=0;
 136
 137         globals.vtt_inertia=10.0;
 138
 139         globals.alsa_free_hwstats=1;
 140         globals.filename_length=20;
 141 }
 142
 143 int load_globals_xml() {
 144         char rc_name[PATH_MAX]="";
 145         char device_type[16]="oss";
 146         xmlDocPtr doc;
 147         xmlNodePtr cur;
 148         int elementFound;
 149         double dvalue;
 150         char tmp_xml_buffer[4096];
 151
 152         get_rc_name(rc_name);
 153
 154         doc = xmlParseFile(rc_name);
 155
 156         if (doc == NULL ) {
 157                 fprintf(stderr, "tX: err: Error parsing terminatorXrc.\n");
 158                 return 1;
 159         }
 160
 161         cur = xmlDocGetRootElement(doc);
 162
 163         if (cur == NULL) {
 164                 fprintf(stderr,"tX: err: terminatorXrc contains no elements.\n");
 165                 xmlFreeDoc(doc);
 166                 return 2;
 167         }
 168
 169         if (xmlStrcmp(cur->name, (const xmlChar *) "terminatorXrc")) {
 170                 fprintf(stderr,"tX: err: This terminatorXrc is not a terminatorXrc.");
 171                 xmlFreeDoc(doc);
 172                 return 3;
 173         }
 174
 175         for (cur=cur->xmlChildrenNode; cur != NULL; cur = cur->next) {
 176                 if (cur->type == XML_ELEMENT_NODE) {
 177                         elementFound=0;
 178
 179                         restore_int("store_globals", globals.store_globals);
 180
 181                         restore_string("audio_driver", device_type);
 182
 183                         restore_string("oss_device", globals.oss_device);
 184                         restore_int("oss_buff_no", globals.oss_buff_no);
 185                         restore_int("oss_buff_size", globals.oss_buff_size);
 186                         restore_int("oss_samplerate", globals.oss_samplerate);
 187
 188                         restore_string("alsa_device", globals.alsa_device);
 189                         restore_int("alsa_buffer_time", globals.alsa_buffer_time);
 190                         restore_int("alsa_period_time", globals.alsa_period_time);
 191                         restore_int("alsa_samplerate", globals.alsa_samplerate);
 192                         restore_int("alsa_free_hwstats", globals.alsa_free_hwstats);
 193
 194                         restore_string("xinput_device", globals.xinput_device);
 195                         restore_int("xinput_enable", globals.xinput_enable);
 196                         restore_int("update_idle", globals.update_idle);
 197                         restore_int("update_delay", globals.update_delay);
 198                         restore_int("sense_cycles", globals.sense_cycles);
 199                         restore_float("mouse_speed", globals.mouse_speed);
 200                         restore_int("width", globals.width);
 201                         restore_int("height", globals.height);
 202                         restore_int("filename_length", globals.filename_length);
 203                         restore_int("tooltips", globals.tooltips);
 204                         restore_int("use_stdout", globals.use_stdout);
 205                         restore_int("show_nag", globals.show_nag);
 206                         restore_int("prelis", globals.prelis);
 207                         restore_string("last_fn", globals.last_fn);
 208                         restore_float("pitch", globals.pitch);
 209                         restore_float("volume", globals.volume);
 210                         restore_float("flash_response", globals.flash_response);
 211                         restore_int("button_type", globals.button_type);
 212                         restore_string("tables_filename", globals.tables_filename);
 213                         restore_string("record_filename", globals.record_filename);
 214                         restore_string("file_editor", globals.file_editor);
 215                         restore_string("lrdf_path", globals.lrdf_path);
 216
 217                         restore_int("compress_set_files", globals.compress_set_files);
 218                         restore_int("fullscreen_enabled", globals.fullscreen_enabled);
 219                         restore_int("confirm_events", globals.confirm_events);
 220                         restore_float("vtt_inertia", globals.vtt_inertia);
 221
 222                         if (!elementFound) {
 223                                 fprintf(stderr, "tX: Unhandled XML element: \"%s\"\n", cur->name);
 224                         }
 225                 }
 226         }
 227
 228         xmlFreeDoc(doc);
 229
 230         if (strcmp(device_type, "alsa")==0) globals.audiodevice_type=ALSA;
 231         else if (strcmp(device_type, "jack")==0) globals.audiodevice_type=JACK;
 232         else globals.audiodevice_type=OSS;
 233
 234         return 0;
 235 }
 236
 237 void store_globals() {
 238         char rc_name[PATH_MAX]="";
 239         char device_type[16];
 240         char indent[]="\t";
 241         FILE *rc=NULL;
 242         gzFile rz=NULL;
 243         char tmp_xml_buffer[4096];
 244         _store_compress_xml=0;
 245
 246         get_rc_name(rc_name);
 247
 248         rc=fopen(rc_name, "w");
 249
 250         switch (globals.audiodevice_type) {
 251                 case JACK:
 252                         strcpy(device_type, "jack");
 253                         break;
 254                 case ALSA:
 255                         strcpy(device_type, "alsa");
 256                         break;
 257                 case OSS:
 258                 default:
 259                         strcpy(device_type, "oss");
 260
 261         }
 262
 263         if (rc) {
 264                 fprintf(rc, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n\n");
 265                 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" );
 266                 fprintf(rc, "<terminatorXrc version=\"%s\">\n", TX_XML_RC_VERSION);
 267
 268                 store_int("store_globals", globals.store_globals);
 269
 270                 store_string("audio_driver", device_type);
 271
 272                 store_string("oss_device", globals.oss_device);
 273                 store_int("oss_buff_no", globals.oss_buff_no);
 274                 store_int("oss_buff_size", globals.oss_buff_size);
 275                 store_int("oss_samplerate", globals.oss_samplerate);
 276
 277                 store_string("alsa_device", globals.alsa_device);
 278                 store_int("alsa_buffer_time", globals.alsa_buffer_time);
 279                 store_int("alsa_period_time", globals.alsa_period_time);
 280                 store_int("alsa_samplerate", globals.alsa_samplerate);
 281                 store_int("alsa_free_hwstats", globals.alsa_free_hwstats);
 282
 283                 store_string("xinput_device", globals.xinput_device);
 284                 store_int("xinput_enable", globals.xinput_enable);
 285                 store_int("update_idle", globals.update_idle);
 286                 store_int("update_delay", globals.update_delay);
 287                 store_int("sense_cycles", globals.sense_cycles);
 288                 store_float("mouse_speed", globals.mouse_speed);
 289                 store_int("width", globals.width);
 290                 store_int("height", globals.height);
 291                 store_int("filename_length", globals.filename_length);
 292                 store_int("tooltips", globals.tooltips);
 293                 store_int("use_stdout", globals.use_stdout);
 294                 // globals.use_stdout_from_conf_file=0; What the heck is this?
 295                 store_int("show_nag", globals.show_nag);
 296                 store_int("prelis", globals.prelis);
 297                 store_string("last_fn", globals.last_fn);
 298                 store_float("pitch", globals.pitch);
 299                 store_float("volume", globals.volume);
 300                 store_float("flash_response", globals.flash_response);
 301                 store_int("button_type", globals.button_type);
 302                 store_string("tables_filename", globals.tables_filename);
 303                 store_string("record_filename", globals.record_filename);
 304                 store_string("file_editor", globals.file_editor);
 305                 store_string("lrdf_path", globals.lrdf_path);
 306                 store_int("compress_set_files", globals.compress_set_files);
 307                 store_int("fullscreen_enabled", globals.fullscreen_enabled);
 308                 store_int("confirm_events", globals.confirm_events);
 309                 store_float("vtt_inertia", globals.vtt_inertia);
 310
 311                 fprintf(rc,"</terminatorXrc>\n");
 312         }
 313 }
 314
 315 #ifdef ENABLE_TX_LEGACY
 316 extern void load_globals_old();
 317 #endif
 318
 319 void load_globals() {
 320         set_global_defaults();
 321
 322         if (load_globals_xml()!=0) {
 323                 fprintf(stderr, "tX: Failed loading terminatorXrc - trying to load old binary rc.\n");
 324 #ifdef ENABLE_TX_LEGACY
 325                 load_globals_old();
 326 #endif
 327         }
 328 }
 329
 330 char *encode_xml(char *dest, const char *src) {
 331         int i, t, max;
 332         char tmp[4096];
 333         int outlen=4096;
 334         int inlen;
 335         int res;
 336
 337         tmp[0]=0;
 338         t=0;
 339         max=strlen(src);
 340
 341         for (i=0; i<max; i++) {
 342                 switch (src[i]) {
 343                         case '<': tmp[t]=0; strcat(tmp, "&lt;"); t+=4; break;
 344                         case '>': tmp[t]=0; strcat(tmp, "&gt;"); t+=4; break;
 345                         case '&': tmp[t]=0; strcat(tmp, "&amp;"); t+=5; break;
 346                         case '"': tmp[t]=0; strcat(tmp, "&quot;"); t+=6; break;
 347                         case '\'': strcat(tmp, "&apos;"); t+=7; break;
 348                         default: tmp[t]=src[i]; t++;
 349                 }
 350         }
 351         tmp[t]=0;
 352
 353         inlen=t;
 354         res=isolat1ToUTF8((unsigned char *) dest, &outlen, (unsigned char *) tmp, &inlen);
 355         dest[outlen]=0;
 356         if (res<0) {
 357                 tX_error("failed to encode string (%s) to UTF-8.", src);
 358         }
 359
 360         return dest;
 361 }
 362
 363 char *decode_xml(char *dest, const char *src) {
 364         int inlen=strlen(src);
 365         int outlen=4096;
 366
 367         int res=UTF8Toisolat1(dest, &outlen, src, &inlen);
 368         dest[outlen]=0;
 369
 370         if (res<0) {
 371                 tX_error("failed to decode UTF-8 string (%s).", src);
 372         }
 373
 374         return dest;
 375 }