hvirtual/plugins/delayaudio/delayaudio.C

   1 #include "bcdisplayinfo.h"
   2 #include "clip.h"
   3 #include "defaults.h"
   4 #include "delayaudio.h"
   5 #include "filexml.h"
   6 #include "picon_png.h"
   7 #include "vframe.h"
   8
   9 #include <string.h>
  10
  11 #include <libintl.h>
  12 #define _(String) gettext(String)
  13 #define gettext_noop(String) String
  14 #define N_(String) gettext_noop (String)
  15
  16
  17 PluginClient* new_plugin(PluginServer *server)
  18 {
  19         return new DelayAudio(server);
  20 }
  21
  22
  23 DelayAudio::DelayAudio(PluginServer *server)
  24  : PluginAClient(server)
  25 {
  26         reset();
  27         load_defaults();
  28 }
  29
  30 DelayAudio::~DelayAudio()
  31 {
  32         if(thread)
  33         {
  34                 thread->window->set_done(0);
  35                 thread->completion.lock();
  36                 delete thread;
  37         }
  38
  39         save_defaults();
  40         delete defaults;
  41
  42         if(buffer) delete [] buffer;
  43 }
  44
  45
  46
  47 VFrame* DelayAudio::new_picon()
  48 {
  49         return new VFrame(picon_png);
  50 }
  51
  52 char* DelayAudio::plugin_title()
  53 {
  54         return _("Delay audio");
  55 }
  56
  57 void DelayAudio::reset()
  58 {
  59         need_reconfigure = 1;
  60         buffer = 0;
  61         thread = 0;
  62 }
  63
  64 int DelayAudio::is_realtime()
  65 {
  66         return 1;
  67 }
  68
  69 void DelayAudio::load_configuration()
  70 {
  71         KeyFrame *prev_keyframe;
  72         prev_keyframe = get_prev_keyframe(get_source_position());
  73
  74         DelayAudioConfig old_config;
  75         old_config.copy_from(config);
  76         read_data(prev_keyframe);
  77
  78         if(!old_config.equivalent(config))
  79         {
  80 // Reconfigure
  81                 need_reconfigure = 1;
  82         }
  83 }
  84
  85 int DelayAudio::load_defaults()
  86 {
  87         char directory[BCTEXTLEN];
  88
  89         sprintf(directory, "%sdelayaudio.rc", BCASTDIR);
  90         defaults = new Defaults(directory);
  91         defaults->load();
  92         config.length = defaults->get("LENGTH", (double)1);
  93         return 0;
  94 }
  95
  96
  97
  98 int DelayAudio::save_defaults()
  99 {
 100         defaults->update("LENGTH", config.length);
 101         defaults->save();
 102         return 0;
 103 }
 104
 105 void DelayAudio::read_data(KeyFrame *keyframe)
 106 {
 107         FileXML input;
 108         input.set_shared_string(keyframe->data, strlen(keyframe->data));
 109
 110         int result = 0;
 111         while(!result)
 112         {
 113                 result = input.read_tag();
 114
 115                 if(!result)
 116                 {
 117                         if(input.tag.title_is("DELAYAUDIO"))
 118                         {
 119                                 config.length = input.tag.get_property("LENGTH", (double)config.length);
 120                         }
 121                 }
 122         }
 123 }
 124
 125
 126 void DelayAudio::save_data(KeyFrame *keyframe)
 127 {
 128         FileXML output;
 129         output.set_shared_string(keyframe->data, MESSAGESIZE);
 130
 131         output.tag.set_title("DELAYAUDIO");
 132         output.tag.set_property("LENGTH", (double)config.length);
 133         output.append_tag();
 134         output.append_newline();
 135         output.terminate_string();
 136 }
 137
 138 void DelayAudio::reconfigure()
 139 {
 140         input_start = (int64_t)(config.length * PluginAClient::project_sample_rate + 0.5);
 141         int64_t new_allocation = input_start + PluginClient::in_buffer_size;
 142         double *new_buffer = new double[new_allocation];
 143         bzero(new_buffer, sizeof(double) * new_allocation);
 144
 145 // printf("DelayAudio::reconfigure %f %d %d %d\n",
 146 // config.length,
 147 // PluginAClient::project_sample_rate,
 148 // PluginClient::in_buffer_size,
 149 // new_allocation);
 150 //
 151
 152
 153         if(buffer)
 154         {
 155                 int size = MIN(new_allocation, allocation);
 156
 157                 memcpy(new_buffer,
 158                         buffer,
 159                         (size - PluginClient::in_buffer_size) * sizeof(double));
 160                 delete [] buffer;
 161         }
 162
 163         allocation = new_allocation;
 164         buffer = new_buffer;
 165         allocation = new_allocation;
 166         need_reconfigure = 0;
 167 }
 168
 169 int DelayAudio::process_realtime(int64_t size, double *input_ptr, double *output_ptr)
 170 {
 171         load_configuration();
 172         if(need_reconfigure) reconfigure();
 173
 174 // printf("DelayAudio::process_realtime %d %d\n",
 175 // input_start, size);
 176
 177
 178
 179         memcpy(buffer + input_start, input_ptr, size * sizeof(double));
 180         memcpy(output_ptr, buffer, size * sizeof(double));
 181
 182         for(int i = size, j = 0; i < allocation; i++, j++)
 183         {
 184                 buffer[j] = buffer[i];
 185         }
 186
 187         return 0;
 188 }
 189
 190 int DelayAudio::show_gui()
 191 {
 192         load_configuration();
 193
 194         thread = new DelayAudioThread(this);
 195         thread->start();
 196         return 0;
 197 }
 198
 199 int DelayAudio::set_string()
 200 {
 201         if(thread) thread->window->set_title(gui_string);
 202         return 0;
 203 }
 204
 205 void DelayAudio::raise_window()
 206 {
 207         if(thread)
 208         {
 209                 thread->window->raise_window();
 210                 thread->window->flush();
 211         }
 212 }
 213
 214 void DelayAudio::update_gui()
 215 {
 216         if(thread)
 217         {
 218                 load_configuration();
 219                 thread->window->lock_window();
 220                 thread->window->update_gui();
 221                 thread->window->unlock_window();
 222         }
 223 }
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236 DelayAudioThread::DelayAudioThread(DelayAudio *plugin)
 237  : Thread()
 238 {
 239         this->plugin = plugin;
 240         set_synchronous(0);
 241         completion.lock();
 242 }
 243
 244
 245
 246
 247 DelayAudioThread::~DelayAudioThread()
 248 {
 249         delete window;
 250 }
 251
 252
 253 void DelayAudioThread::run()
 254 {
 255         BC_DisplayInfo info;
 256
 257         window = new DelayAudioWindow(plugin,
 258                 info.get_abs_cursor_x() - 125,
 259                 info.get_abs_cursor_y() - 115);
 260
 261         window->create_objects();
 262         int result = window->run_window();
 263         completion.unlock();
 264 // Last command executed in thread
 265         if(result) plugin->client_side_close();
 266 }
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277 DelayAudioWindow::DelayAudioWindow(DelayAudio *plugin, int x, int y)
 278  : BC_Window(plugin->gui_string,
 279         x,
 280         y,
 281         200,
 282         80,
 283         200,
 284         80,
 285         0,
 286         0,
 287         1)
 288 {
 289         this->plugin = plugin;
 290 }
 291
 292 DelayAudioWindow::~DelayAudioWindow()
 293 {
 294 }
 295
 296 int DelayAudioWindow::create_objects()
 297 {
 298         add_subwindow(new BC_Title(10, 10, _("Delay seconds:")));
 299         add_subwindow(length = new DelayAudioTextBox(plugin, 10, 40));
 300         update_gui();
 301         show_window();
 302         flush();
 303         return 0;
 304 }
 305
 306 int DelayAudioWindow::close_event()
 307 {
 308 // Set result to 1 to indicate a client side close
 309         set_done(1);
 310         return 1;
 311 }
 312
 313 void DelayAudioWindow::update_gui()
 314 {
 315         char string[BCTEXTLEN];
 316         sprintf(string, "%.04f", plugin->config.length);
 317         length->update(string);
 318 }
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331 DelayAudioTextBox::DelayAudioTextBox(DelayAudio *plugin, int x, int y)
 332  : BC_TextBox(x, y, 150, 1, "")
 333 {
 334         this->plugin = plugin;
 335 }
 336
 337 DelayAudioTextBox::~DelayAudioTextBox()
 338 {
 339 }
 340
 341 int DelayAudioTextBox::handle_event()
 342 {
 343         plugin->config.length = atof(get_text());
 344         if(plugin->config.length < 0) plugin->config.length = 0;
 345         plugin->send_configure_change();
 346         return 1;
 347 }
 348
 349
 350
 351
 352
 353
 354
 355
 356 DelayAudioConfig::DelayAudioConfig()
 357 {
 358         length = 1;
 359 }
 360
 361 int DelayAudioConfig::equivalent(DelayAudioConfig &that)
 362 {
 363         return(EQUIV(this->length, that.length));
 364 }
 365
 366 void DelayAudioConfig::copy_from(DelayAudioConfig &that)
 367 {
 368         this->length = that.length;
 369 }
 370
 371
 372
 373
 374