cinelerra-5.1/cinelerra/vdeviceprefs.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2011 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcsignals.h"
  23 #include "channeldb.h"
  24 #include "channelpicker.h"
  25 #include "clip.h"
  26 #include "edl.h"
  27 #include "edlsession.h"
  28 #include "formattools.h"
  29 #include "language.h"
  30 #include "mwindow.h"
  31 #include "mainsession.h"
  32 #include "vdeviceprefs.h"
  33 #include "videoconfig.h"
  34 #include "videodevice.inc"
  35 #include "overlayframe.inc"
  36 #include "playbackconfig.h"
  37 #include "preferences.h"
  38 #include "preferencesthread.h"
  39 #include "recordconfig.h"
  40 #include "recordprefs.h"
  41 #include "theme.h"
  42 #include <string.h>
  43
  44
  45 VDevicePrefs::VDevicePrefs(int x,
  46         int y,
  47         PreferencesWindow *pwindow,
  48         PreferencesDialog *dialog,
  49         VideoOutConfig *out_config,
  50         VideoInConfig *in_config,
  51         int mode)
  52 {
  53         this->pwindow = pwindow;
  54         this->dialog = dialog;
  55         this->driver = DEV_UNKNOWN;
  56         this->mode = mode;
  57         this->out_config = out_config;
  58         this->in_config = in_config;
  59         this->x = x;
  60         this->y = y;
  61         menu = 0;
  62         reset_objects();
  63
  64 }
  65
  66 VDevicePrefs::~VDevicePrefs()
  67 {
  68         delete_objects();
  69         if(menu) delete menu;
  70         int config = -1;
  71         switch( pwindow->thread->current_dialog ) {
  72         case PreferencesThread::PLAYBACK_A:  config = 0;  break;
  73         case PreferencesThread::PLAYBACK_B:  config = 1;  break;
  74         }
  75         if( config >= 0 )
  76                 pwindow->mwindow->session->save_x11_host(config, out_config->x11_host);
  77 }
  78
  79
  80 void VDevicePrefs::reset_objects()
  81 {
  82         device_title = 0;
  83         port_title = 0;
  84         follow_video_config = 0;
  85         dvb_adapter_title = 0;
  86         dvb_adapter_device = 0;
  87         channel_title = 0;
  88         output_title = 0;
  89         syt_title = 0;
  90
  91         device_text = 0;
  92         firewire_port = 0;
  93         firewire_channel = 0;
  94         firewire_channels = 0;
  95         firewire_syt = 0;
  96         firewire_path = 0;
  97         fields_title = 0;
  98         device_fields = 0;
  99         use_direct_x11 = 0;
 100
 101         channel_picker = 0;
 102 }
 103
 104 int VDevicePrefs::initialize(int creation)
 105 {
 106         int *driver = 0;
 107         delete_objects();
 108
 109         switch(mode)
 110         {
 111                 case MODEPLAY:
 112                         driver = &out_config->driver;
 113                         break;
 114
 115                 case MODERECORD:
 116                         driver = &in_config->driver;
 117                         break;
 118         }
 119         this->driver = *driver;
 120
 121         if(!menu)
 122         {
 123                 dialog->add_subwindow(menu = new VDriverMenu(x,
 124                         y + 10,
 125                         this,
 126                         (mode == MODERECORD),
 127                         driver));
 128                 menu->create_objects();
 129         }
 130
 131         switch(this->driver)
 132         {
 133                 case DEV_UNKNOWN:
 134                         break;
 135                 case VIDEO4LINUX2:
 136                 case CAPTURE_JPEG_WEBCAM:
 137                 case CAPTURE_YUYV_WEBCAM:
 138                         create_v4l2_objs();
 139                         break;
 140                 case VIDEO4LINUX2JPEG:
 141                         create_v4l2jpeg_objs();
 142                         break;
 143                 case VIDEO4LINUX2MPEG:
 144                         create_v4l2mpeg_objs();
 145                         break;
 146                 case SCREENCAPTURE:
 147                         create_screencap_objs();
 148                         break;
 149                 case PLAYBACK_X11:
 150                 case PLAYBACK_X11_XV:
 151                 case PLAYBACK_X11_GL:
 152                         create_x11_objs();
 153                         break;
 154                 case PLAYBACK_DV1394:
 155                 case PLAYBACK_FIREWIRE:
 156                 case PLAYBACK_IEC61883:
 157                 case CAPTURE_FIREWIRE:
 158                 case CAPTURE_IEC61883:
 159                         create_firewire_objs();
 160                         break;
 161                 case CAPTURE_DVB:
 162                         create_dvb_objs();
 163                         break;
 164         }
 165
 166
 167
 168 // Update driver dependancies in file format
 169         if(mode == MODERECORD && dialog && !creation)
 170         {
 171                 RecordPrefs *record_prefs = (RecordPrefs*)dialog;
 172                 record_prefs->recording_format->update_driver(this->driver);
 173         }
 174
 175         return 0;
 176 }
 177
 178 int VDevicePrefs::delete_objects()
 179 {
 180         delete output_title;
 181         delete channel_picker;
 182         delete device_title;
 183         delete device_text;
 184         delete dvb_adapter_device;
 185         delete follow_video_config;
 186         delete dvb_adapter_title;
 187         delete use_direct_x11;
 188
 189         delete port_title;
 190
 191         if(firewire_port) delete firewire_port;
 192         if(channel_title) delete channel_title;
 193         if(firewire_channel) delete firewire_channel;
 194         if(firewire_path) delete firewire_path;
 195         if(syt_title) delete syt_title;
 196         if(firewire_syt) delete firewire_syt;
 197         if(fields_title) delete fields_title;
 198         if(device_fields) delete device_fields;
 199
 200         reset_objects();
 201         driver = -1;
 202         return 0;
 203 }
 204
 205 int VDevicePrefs::get_h()
 206 {
 207         int margin = pwindow->mwindow->theme->widget_border;
 208         return BC_Title::calculate_h(dialog, "X", MEDIUMFONT) + margin +
 209                 BC_TextBox::calculate_h(dialog, MEDIUMFONT, 1, 1);
 210 }
 211
 212 void VDevicePrefs::create_dvb_objs()
 213 {
 214         int x1 = x + menu->get_w() + 30;
 215         int y1 = y + 10;
 216         char *output_char = in_config->dvb_in_adapter;
 217         int y2 = y1 - BC_Title::calculate_h(dialog, _("DVB Adapter:"), MEDIUMFONT) - 5;
 218         BC_Resources *resources = BC_WindowBase::get_resources();
 219         dvb_adapter_title = new BC_Title(x1, y2, _("DVB Adapter:"),
 220                         MEDIUMFONT, resources->text_default);
 221         dialog->add_subwindow(dvb_adapter_title);
 222         dialog->add_subwindow(device_text = new VDeviceTextBox(x1, y1, output_char));
 223         int x2 = x1 + device_text->get_w() + 5;
 224         device_title = new BC_Title(x2, y2, _("dev:"),
 225                         MEDIUMFONT, resources->text_default);
 226         dialog->add_subwindow(device_title);
 227         int *output_int = &in_config->dvb_in_device;
 228         dvb_adapter_device = new VDeviceTumbleBox(this, x2, y1, output_int, 0, 9, 20);
 229         dvb_adapter_device->create_objects();
 230         x1 += 64;  y1 += device_text->get_h() + 5;
 231         follow_video_config = new BC_CheckBox(x1, y1,
 232                         &in_config->follow_video, _("Follow video config"));
 233         dialog->add_subwindow(follow_video_config);
 234 }
 235
 236 int VDevicePrefs::create_firewire_objs()
 237 {
 238         int *output_int = 0;
 239         char *output_char = 0;
 240         int x1 = x + menu->get_w() + 5;
 241         BC_Resources *resources = BC_WindowBase::get_resources();
 242
 243 // Firewire path
 244         switch(mode)
 245         {
 246                 case MODEPLAY:
 247                         if(driver == PLAYBACK_DV1394)
 248                                 output_char = out_config->dv1394_path;
 249                         else
 250                         if(driver == PLAYBACK_FIREWIRE)
 251                                 output_char = out_config->firewire_path;
 252                         break;
 253                 case MODERECORD:
 254                         if(driver == CAPTURE_FIREWIRE)
 255                                 output_char = in_config->firewire_path;
 256                         break;
 257         }
 258
 259         if(output_char)
 260         {
 261                 dialog->add_subwindow(device_title = new BC_Title(x1, y, _("Device Path:"), MEDIUMFONT, resources->text_default));
 262                 dialog->add_subwindow(firewire_path = new VDeviceTextBox(x1, y + 20, output_char));
 263                 x1 += firewire_path->get_w() + 5;
 264         }
 265
 266 // Firewire port
 267         switch(mode)
 268         {
 269                 case MODEPLAY:
 270                         if(driver == PLAYBACK_DV1394)
 271                                 output_int = &out_config->dv1394_port;
 272                         else
 273                                 output_int = &out_config->firewire_port;
 274                         break;
 275                 case MODERECORD:
 276                         output_int = &in_config->firewire_port;
 277                         break;
 278         }
 279         dialog->add_subwindow(port_title = new BC_Title(x1, y, _("Port:"), MEDIUMFONT, resources->text_default));
 280         dialog->add_subwindow(firewire_port = new VDeviceIntBox(x1, y + 20, output_int));
 281         x1 += firewire_port->get_w() + 5;
 282
 283 // Firewire channel
 284         switch(mode)
 285         {
 286                 case MODEPLAY:
 287                         if(driver == PLAYBACK_DV1394)
 288                                 output_int = &out_config->dv1394_channel;
 289                         else
 290                                 output_int = &out_config->firewire_channel;
 291                         break;
 292                 case MODERECORD:
 293                         output_int = &in_config->firewire_channel;
 294                         break;
 295         }
 296
 297         dialog->add_subwindow(channel_title = new BC_Title(x1, y, _("Channel:"), MEDIUMFONT, resources->text_default));
 298         dialog->add_subwindow(firewire_channel = new VDeviceIntBox(x1, y + 20, output_int));
 299         x1 += firewire_channel->get_w() + 5;
 300
 301
 302 // Firewire syt
 303         switch(mode)
 304         {
 305                 case MODEPLAY:
 306                         if(driver == PLAYBACK_DV1394)
 307                                 output_int = &out_config->dv1394_syt;
 308                         else
 309                         if(driver == PLAYBACK_FIREWIRE)
 310                                 output_int = &out_config->firewire_syt;
 311                         else
 312                                 output_int = 0;
 313                         break;
 314                 case MODERECORD:
 315                         output_int = 0;
 316                         break;
 317         }
 318         if(output_int)
 319         {
 320                 dialog->add_subwindow(syt_title = new BC_Title(x1, y, _("Syt Offset:"), MEDIUMFONT, resources->text_default));
 321                 dialog->add_subwindow(firewire_syt = new VDeviceIntBox(x1, y + 20, output_int));
 322         }
 323
 324         return 0;
 325 }
 326
 327 int VDevicePrefs::create_v4l2_objs()
 328 {
 329         char *output_char;
 330         BC_Resources *resources = BC_WindowBase::get_resources();
 331         int x1 = x + menu->get_w() + 5;
 332         output_char = pwindow->thread->edl->session->vconfig_in->v4l2_in_device;
 333         dialog->add_subwindow(device_title = new BC_Title(x1, y, _("Device path:"), MEDIUMFONT, resources->text_default));
 334         dialog->add_subwindow(device_text = new VDeviceTextBox(x1, y + 20, output_char));
 335
 336         return 0;
 337 }
 338
 339 int VDevicePrefs::create_v4l2jpeg_objs()
 340 {
 341         BC_Resources *resources = BC_WindowBase::get_resources();
 342         int x1 = x + menu->get_w() + 5;
 343         char *output_char = &pwindow->thread->edl->session->vconfig_in->v4l2jpeg_in_device[0];
 344         dialog->add_subwindow(device_title = new BC_Title(x1, y, _("Device path:"), MEDIUMFONT, resources->text_default));
 345         dialog->add_subwindow(device_text = new VDeviceTextBox(x1, y + 20, output_char));
 346         x1 += bmax(device_title->get_w(),device_text->get_w()) + 5;
 347         int *output_int = &pwindow->thread->edl->session->vconfig_in->v4l2jpeg_in_fields;
 348         fields_title = new BC_Title(x1, y, _("Fields:"), MEDIUMFONT, resources->text_default);
 349         dialog->add_subwindow(fields_title);
 350         device_fields = new VDeviceTumbleBox(this, x1, y + 20, output_int, 1, 2, 20);
 351         device_fields->create_objects();
 352         return 0;
 353 }
 354
 355 int VDevicePrefs::create_v4l2mpeg_objs()
 356 {
 357         char *output_char;
 358         BC_Resources *resources = BC_WindowBase::get_resources();
 359         int x1 = x + menu->get_w() + 5;
 360         output_char = pwindow->thread->edl->session->vconfig_in->v4l2mpeg_in_device;
 361         dialog->add_subwindow(device_title = new BC_Title(x1, y, _("Device path:"), MEDIUMFONT, resources->text_default));
 362         int y1 = y + 20;
 363         dialog->add_subwindow(device_text = new VDeviceTextBox(x1, y1, output_char));
 364         x1 += 64;  y1 += device_text->get_h() + 5;
 365         follow_video_config = new BC_CheckBox(x1, y1,
 366                         &in_config->follow_video, _("Follow video config"));
 367         dialog->add_subwindow(follow_video_config);
 368         return 0;
 369 }
 370
 371
 372 int VDevicePrefs::create_screencap_objs()
 373 {
 374         char *output_char;
 375         BC_Resources *resources = BC_WindowBase::get_resources();
 376         int x1 = x + menu->get_w() + 5;
 377         output_char = pwindow->thread->edl->session->vconfig_in->screencapture_display;
 378         dialog->add_subwindow(device_title = new BC_Title(x1, y, _("Display:"), MEDIUMFONT, resources->text_default));
 379         dialog->add_subwindow(device_text = new VDeviceTextBox(x1, y + 20, output_char));
 380         return 0;
 381 }
 382
 383 int VDevicePrefs::create_x11_objs()
 384 {
 385         char *output_char;
 386         BC_Resources *resources = BC_WindowBase::get_resources();
 387         output_char = out_config->x11_host;
 388         const char *x11_display;
 389         switch( pwindow->thread->current_dialog ) {
 390         default:
 391         case PreferencesThread::PLAYBACK_A:
 392                 x11_display = _("Default A Display:");  break;
 393                 break;
 394         case PreferencesThread::PLAYBACK_B:
 395                 x11_display = _("Default B Display:");  break;
 396                 break;
 397         }
 398         int x1 = menu->get_x() + menu->get_w() + 10;
 399         int y1 = menu->get_y();
 400         if( driver == PLAYBACK_X11 ) y1 -= 10;
 401         dialog->add_subwindow(device_title = new BC_Title(x1, y1+4, x11_display,
 402                         MEDIUMFONT, resources->text_default));
 403         int x2 = x1 + device_title->get_w() + 10, dy = device_title->get_h();
 404         dialog->add_subwindow(device_text = new VDeviceTextBox(x2, y1, output_char));
 405         if( driver == PLAYBACK_X11 ) {
 406                 int y2 = device_text->get_h();
 407                 if( dy < y2 ) dy = y2;
 408                 y1 += dy + 5;
 409                 use_direct_x11 = new BC_CheckBox(x1, y1,
 410                         &out_config->use_direct_x11, _("use direct x11 render if possible"));
 411                 dialog->add_subwindow(use_direct_x11);
 412         }
 413         return 0;
 414 }
 415
 416
 417
 418
 419 VDriverMenu::VDriverMenu(int x,
 420         int y,
 421         VDevicePrefs *device_prefs,
 422         int do_input,
 423         int *output)
 424  : BC_PopupMenu(x, y, 200, driver_to_string(*output))
 425 {
 426         this->output = output;
 427         this->do_input = do_input;
 428         this->device_prefs = device_prefs;
 429 }
 430
 431 VDriverMenu::~VDriverMenu()
 432 {
 433 }
 434
 435 char* VDriverMenu::driver_to_string(int driver)
 436 {
 437         switch(driver)
 438         {
 439                 case DEV_UNKNOWN:
 440                         sprintf(string, DEV_UNKNOWN_TITLE);
 441                         break;
 442                 case VIDEO4LINUX2:
 443                         sprintf(string, VIDEO4LINUX2_TITLE);
 444                         break;
 445                 case CAPTURE_JPEG_WEBCAM:
 446                         sprintf(string, CAPTURE_JPEG_WEBCAM_TITLE);
 447                         break;
 448                 case CAPTURE_YUYV_WEBCAM:
 449                         sprintf(string, CAPTURE_YUYV_WEBCAM_TITLE);
 450                         break;
 451                 case VIDEO4LINUX2JPEG:
 452                         sprintf(string, VIDEO4LINUX2JPEG_TITLE);
 453                         break;
 454                 case VIDEO4LINUX2MPEG:
 455                         sprintf(string, VIDEO4LINUX2MPEG_TITLE);
 456                         break;
 457                 case SCREENCAPTURE:
 458                         sprintf(string, SCREENCAPTURE_TITLE);
 459                         break;
 460 #ifdef HAVE_FIREWIRE
 461                 case CAPTURE_FIREWIRE:
 462                         sprintf(string, CAPTURE_FIREWIRE_TITLE);
 463                         break;
 464                 case CAPTURE_IEC61883:
 465                         sprintf(string, CAPTURE_IEC61883_TITLE);
 466                         break;
 467 #endif
 468                 case CAPTURE_DVB:
 469                         sprintf(string, CAPTURE_DVB_TITLE);
 470                         break;
 471                 case PLAYBACK_X11:
 472                         sprintf(string, PLAYBACK_X11_TITLE);
 473                         break;
 474                 case PLAYBACK_X11_XV:
 475                         sprintf(string, PLAYBACK_X11_XV_TITLE);
 476                         break;
 477                 case PLAYBACK_X11_GL:
 478                         sprintf(string, PLAYBACK_X11_GL_TITLE);
 479                         break;
 480 #ifdef HAVE_FIREWIRE
 481                 case PLAYBACK_FIREWIRE:
 482                         sprintf(string, PLAYBACK_FIREWIRE_TITLE);
 483                         break;
 484                 case PLAYBACK_DV1394:
 485                         sprintf(string, PLAYBACK_DV1394_TITLE);
 486                         break;
 487                 case PLAYBACK_IEC61883:
 488                         sprintf(string, PLAYBACK_IEC61883_TITLE);
 489                         break;
 490 #endif
 491                 default:
 492                         string[0] = 0;
 493         }
 494         return string;
 495 }
 496
 497 void VDriverMenu::create_objects()
 498 {
 499         if(do_input)
 500         {
 501 #ifdef HAVE_VIDEO4LINUX2
 502                 add_item(new VDriverItem(this, VIDEO4LINUX2_TITLE, VIDEO4LINUX2));
 503                 add_item(new VDriverItem(this, CAPTURE_JPEG_WEBCAM_TITLE, CAPTURE_JPEG_WEBCAM));
 504                 add_item(new VDriverItem(this, CAPTURE_YUYV_WEBCAM_TITLE, CAPTURE_YUYV_WEBCAM));
 505                 add_item(new VDriverItem(this, VIDEO4LINUX2JPEG_TITLE, VIDEO4LINUX2JPEG));
 506                 add_item(new VDriverItem(this, VIDEO4LINUX2MPEG_TITLE, VIDEO4LINUX2MPEG));
 507 #endif
 508
 509                 add_item(new VDriverItem(this, SCREENCAPTURE_TITLE, SCREENCAPTURE));
 510 #ifdef HAVE_FIREWIRE
 511                 add_item(new VDriverItem(this, CAPTURE_FIREWIRE_TITLE, CAPTURE_FIREWIRE));
 512                 add_item(new VDriverItem(this, CAPTURE_IEC61883_TITLE, CAPTURE_IEC61883));
 513 #endif
 514 #ifdef HAVE_DVB
 515                 add_item(new VDriverItem(this, CAPTURE_DVB_TITLE, CAPTURE_DVB));
 516 #endif
 517         }
 518         else
 519         {
 520                 add_item(new VDriverItem(this, PLAYBACK_X11_TITLE, PLAYBACK_X11));
 521                 add_item(new VDriverItem(this, PLAYBACK_X11_XV_TITLE, PLAYBACK_X11_XV));
 522 #ifdef HAVE_GL
 523 // Check runtime glx version. pbuffer needs >= 1.3
 524                 if(get_opengl_server_version() >= 103)
 525                         add_item(new VDriverItem(this, PLAYBACK_X11_GL_TITLE, PLAYBACK_X11_GL));
 526 #endif
 527 #ifdef HAVE_FIREWIRE
 528                 add_item(new VDriverItem(this, PLAYBACK_FIREWIRE_TITLE, PLAYBACK_FIREWIRE));
 529                 add_item(new VDriverItem(this, PLAYBACK_DV1394_TITLE, PLAYBACK_DV1394));
 530                 add_item(new VDriverItem(this, PLAYBACK_IEC61883_TITLE, PLAYBACK_IEC61883));
 531 #endif
 532         }
 533 }
 534
 535
 536 VDriverItem::VDriverItem(VDriverMenu *popup, const char *text, int driver)
 537  : BC_MenuItem(text)
 538 {
 539         this->popup = popup;
 540         this->driver = driver;
 541 }
 542
 543 VDriverItem::~VDriverItem()
 544 {
 545 }
 546
 547 int VDriverItem::handle_event()
 548 {
 549         popup->set_text(get_text());
 550         *(popup->output) = driver;
 551         popup->device_prefs->initialize(0);
 552         popup->device_prefs->pwindow->show_dialog();
 553         return 1;
 554 }
 555
 556
 557
 558
 559 VDeviceTextBox::VDeviceTextBox(int x, int y, char *output)
 560  : BC_TextBox(x, y, 200, 1, output)
 561 {
 562         this->output = output;
 563 }
 564
 565 int VDeviceTextBox::handle_event()
 566 {
 567 // Suggestions
 568         calculate_suggestions(0);
 569
 570         strcpy(output, get_text());
 571         return 1;
 572 }
 573
 574 VDeviceTumbleBox::VDeviceTumbleBox(VDevicePrefs *prefs,
 575         int x, int y, int *output, int min, int max, int text_w)
 576  : BC_TumbleTextBox(prefs->dialog, *output, min, max, x, y, text_w)
 577 {
 578         this->output = output;
 579 }
 580
 581 int VDeviceTumbleBox::handle_event()
 582 {
 583         *output = atol(get_text());
 584         return 1;
 585 }
 586
 587
 588
 589
 590
 591
 592 VDeviceIntBox::VDeviceIntBox(int x, int y, int *output)
 593  : BC_TextBox(x, y, 60, 1, *output)
 594 {
 595         this->output = output;
 596 }
 597
 598 int VDeviceIntBox::handle_event()
 599 {
 600         *output = atol(get_text());
 601         return 1;
 602 }
 603
 604
 605
 606
 607
 608 VDeviceCheckBox::VDeviceCheckBox(int x, int y, int *output, char *text)
 609  : BC_CheckBox(x, y, *output, text)
 610 {
 611         this->output = output;
 612 }
 613 int VDeviceCheckBox::handle_event()
 614 {
 615         *output = get_value();
 616         return 1;
 617 }
 618
 619
 620
 621
 622 VScalingItem::VScalingItem(VScalingEquation *popup, int interpolation)
 623  : BC_MenuItem(popup->interpolation_to_string(interpolation))
 624 {
 625         this->popup = popup;
 626         this->interpolation = interpolation;
 627 }
 628
 629 VScalingItem::~VScalingItem()
 630 {
 631 }
 632
 633 int VScalingItem::handle_event()
 634 {
 635         popup->set_text(get_text());
 636         *(popup->output) = interpolation;
 637         return 1;
 638 }
 639
 640
 641 VScalingEquation::VScalingEquation(int x, int y, int *output)
 642  : BC_PopupMenu(x, y, 240, interpolation_to_string(*output))
 643 {
 644         this->output = output;
 645 }
 646
 647 VScalingEquation::~VScalingEquation()
 648 {
 649 }
 650
 651 const char *VScalingEquation::interpolation_to_string(int type)
 652 {
 653         switch( type ) {
 654         case NEAREST_NEIGHBOR:  return _("Nearest Neighbor");
 655         case CUBIC_CUBIC:       return _("BiCubic / BiCubic");
 656         case CUBIC_LINEAR:      return _("BiCubic / BiLinear");
 657         case LINEAR_LINEAR:     return _("BiLinear / BiLinear");
 658         case LANCZOS_LANCZOS:   return _("Lanczos / Lanczos");
 659         }
 660         return _("Unknown");
 661 }
 662
 663 void VScalingEquation::create_objects()
 664 {
 665         add_item(new VScalingItem(this, NEAREST_NEIGHBOR));
 666         add_item(new VScalingItem(this, CUBIC_CUBIC));
 667         add_item(new VScalingItem(this, CUBIC_LINEAR));
 668         add_item(new VScalingItem(this, LINEAR_LINEAR));
 669         add_item(new VScalingItem(this, LANCZOS_LANCZOS));
 670 }
 671