cinelerra-5.1/plugins/gradient/gradient.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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 <math.h>
  23 #include <stdint.h>
  24 #include <string.h>
  25
  26 #include "bcdisplayinfo.h"
  27 #include "clip.h"
  28 #include "bchash.h"
  29 #include "filexml.h"
  30 #include "gradient.h"
  31 #include "keyframe.h"
  32 #include "language.h"
  33 #include "overlayframe.h"
  34 #include "theme.h"
  35 #include "vframe.h"
  36
  37
  38
  39
  40 REGISTER_PLUGIN(GradientMain)
  41
  42
  43
  44
  45
  46
  47 GradientConfig::GradientConfig()
  48 {
  49         angle = 0;
  50         in_radius = 0;
  51         out_radius = 100;
  52         in_r = 0xff;
  53         in_g = 0xff;
  54         in_b = 0xff;
  55         in_a = 0xff;
  56         out_r = 0x0;
  57         out_g = 0x0;
  58         out_b = 0x0;
  59         out_a = 0x0;
  60         shape = GradientConfig::LINEAR;
  61         rate = GradientConfig::LINEAR;
  62         center_x = 50;
  63         center_y = 50;
  64 }
  65
  66 int GradientConfig::equivalent(GradientConfig &that)
  67 {
  68         return (EQUIV(angle, that.angle) &&
  69                 EQUIV(in_radius, that.in_radius) &&
  70                 EQUIV(out_radius, that.out_radius) &&
  71                 in_r == that.in_r &&
  72                 in_g == that.in_g &&
  73                 in_b == that.in_b &&
  74                 in_a == that.in_a &&
  75                 out_r == that.out_r &&
  76                 out_g == that.out_g &&
  77                 out_b == that.out_b &&
  78                 out_a == that.out_a &&
  79                 shape == that.shape &&
  80                 rate == that.rate &&
  81                 EQUIV(center_x, that.center_x) &&
  82                 EQUIV(center_y, that.center_y));
  83 }
  84
  85 void GradientConfig::copy_from(GradientConfig &that)
  86 {
  87         angle = that.angle;
  88         in_radius = that.in_radius;
  89         out_radius = that.out_radius;
  90         in_r = that.in_r;
  91         in_g = that.in_g;
  92         in_b = that.in_b;
  93         in_a = that.in_a;
  94         out_r = that.out_r;
  95         out_g = that.out_g;
  96         out_b = that.out_b;
  97         out_a = that.out_a;
  98         shape = that.shape;
  99         rate = that.rate;
 100         center_x = that.center_x;
 101         center_y = that.center_y;
 102 }
 103
 104 void GradientConfig::interpolate(GradientConfig &prev,
 105         GradientConfig &next,
 106         long prev_frame,
 107         long next_frame,
 108         long current_frame)
 109 {
 110         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 111         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 112
 113
 114         this->angle = (int)(prev.angle * prev_scale + next.angle * next_scale);
 115         this->in_radius = (int)(prev.in_radius * prev_scale + next.in_radius * next_scale);
 116         this->out_radius = (int)(prev.out_radius * prev_scale + next.out_radius * next_scale);
 117         in_r = (int)(prev.in_r * prev_scale + next.in_r * next_scale);
 118         in_g = (int)(prev.in_g * prev_scale + next.in_g * next_scale);
 119         in_b = (int)(prev.in_b * prev_scale + next.in_b * next_scale);
 120         in_a = (int)(prev.in_a * prev_scale + next.in_a * next_scale);
 121         out_r = (int)(prev.out_r * prev_scale + next.out_r * next_scale);
 122         out_g = (int)(prev.out_g * prev_scale + next.out_g * next_scale);
 123         out_b = (int)(prev.out_b * prev_scale + next.out_b * next_scale);
 124         out_a = (int)(prev.out_a * prev_scale + next.out_a * next_scale);
 125         shape = prev.shape;
 126         rate = prev.rate;
 127         center_x = prev.center_x * prev_scale + next.center_x * next_scale;
 128         center_y = prev.center_y * prev_scale + next.center_y * next_scale;
 129 }
 130
 131 int GradientConfig::get_in_color()
 132 {
 133         int result = (in_r << 16) | (in_g << 8) | (in_b);
 134         return result;
 135 }
 136
 137 int GradientConfig::get_out_color()
 138 {
 139         int result = (out_r << 16) | (out_g << 8) | (out_b);
 140         return result;
 141 }
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153 #define COLOR_W 100
 154 #define COLOR_H 30
 155
 156 GradientWindow::GradientWindow(GradientMain *plugin)
 157  : PluginClientWindow(plugin,
 158         350,
 159         290,
 160         350,
 161         290,
 162         0)
 163 {
 164         this->plugin = plugin;
 165         angle = 0;
 166         angle_title = 0;
 167         center_x = 0;
 168         center_y = 0;
 169         center_x_title = 0;
 170         center_y_title = 0;
 171 }
 172
 173 GradientWindow::~GradientWindow()
 174 {
 175         delete in_color_thread;
 176         delete out_color_thread;
 177 }
 178
 179 void GradientWindow::create_objects()
 180 {
 181         int margin = plugin->get_theme()->widget_border;
 182         int x = 10, y = 10;
 183         BC_Title *title;
 184
 185         add_subwindow(title = new BC_Title(x, y, _("Shape:")));
 186         add_subwindow(shape = new GradientShape(plugin,
 187                 this,
 188                 x + title->get_w() + margin,
 189                 y));
 190         shape->create_objects();
 191         y += shape->get_h() + margin;
 192         shape_x = x;
 193         shape_y = y;
 194         y += BC_Pot::calculate_h() + margin;
 195
 196         add_subwindow(title = new BC_Title(x, y, _("Rate:")));
 197         add_subwindow(rate = new GradientRate(plugin,
 198                 x + title->get_w() + margin,
 199                 y));
 200         rate->create_objects();
 201         y += rate->get_h() + margin;
 202
 203         int x1 = x;
 204         int y1 = y;
 205
 206         BC_Title *title1;
 207         add_subwindow(title1 = new BC_Title(x, y, _("Inner radius:")));
 208
 209         y += BC_Slider::get_span(0) + margin;
 210
 211         BC_Title *title2;
 212         add_subwindow(title2 = new BC_Title(x, y, _("Outer radius:")));
 213
 214         y = y1;
 215         x += MAX(title1->get_w(), title2->get_w()) + margin;
 216
 217         add_subwindow(in_radius = new GradientInRadius(plugin, x, y));
 218         y += in_radius->get_h() + margin;
 219
 220         add_subwindow(out_radius = new GradientOutRadius(plugin, x, y));
 221         y += out_radius->get_h() + margin;
 222
 223         x = x1;
 224         y1 = y;
 225         add_subwindow(in_color = new GradientInColorButton(plugin, this, x, y));
 226         y += COLOR_H + margin;
 227
 228
 229         add_subwindow(out_color = new GradientOutColorButton(plugin, this, x, y));
 230         x += MAX(in_color->get_w(), out_color->get_w()) + margin;
 231         y = y1;
 232
 233         in_color_x = x;
 234         in_color_y = y;
 235         y += COLOR_H + margin;
 236         out_color_x = x;
 237         out_color_y = y;
 238         in_color_thread = new GradientInColorThread(plugin, this);
 239         out_color_thread = new GradientOutColorThread(plugin, this);
 240         update_in_color();
 241         update_out_color();
 242         update_shape();
 243
 244         draw_3d_border(in_color_x - 2,
 245                 in_color_y - 2,
 246                 COLOR_W + 4,
 247                 COLOR_H + 4,
 248                 1);
 249
 250         draw_3d_border(out_color_x - 2,
 251                 out_color_y - 2,
 252                 COLOR_W + 4,
 253                 COLOR_H + 4,
 254                 1);
 255
 256         show_window();
 257 }
 258
 259 void GradientWindow::update_shape()
 260 {
 261         int x = shape_x, y = shape_y;
 262
 263         if(plugin->config.shape == GradientConfig::LINEAR)
 264         {
 265                 delete center_x_title;
 266                 delete center_y_title;
 267                 delete center_x;
 268                 delete center_y;
 269                 center_x_title = 0;
 270                 center_y_title = 0;
 271                 center_x = 0;
 272                 center_y = 0;
 273
 274                 if(!angle)
 275                 {
 276                         add_subwindow(angle_title = new BC_Title(x, y, _("Angle:")));
 277                         add_subwindow(angle = new GradientAngle(plugin, x + angle_title->get_w() + 10, y));
 278                 }
 279         }
 280         else
 281         {
 282                 delete angle_title;
 283                 delete angle;
 284                 angle_title = 0;
 285                 angle = 0;
 286                 if(!center_x)
 287                 {
 288                         add_subwindow(center_x_title = new BC_Title(x, y, _("Center X:")));
 289                         add_subwindow(center_x = new GradientCenterX(plugin,
 290                                 x + center_x_title->get_w() + 10,
 291                                 y));
 292                         x += center_x_title->get_w() + 10 + center_x->get_w() + 10;
 293                         add_subwindow(center_y_title = new BC_Title(x, y, _("Center Y:")));
 294                         add_subwindow(center_y = new GradientCenterY(plugin,
 295                                 x + center_y_title->get_w() + 10,
 296                                 y));
 297                 }
 298         }
 299 }
 300
 301
 302
 303
 304 void GradientWindow::update_in_color()
 305 {
 306 //printf("GradientWindow::update_in_color 1 %08x\n", plugin->config.get_in_color());
 307         set_color(plugin->config.get_in_color());
 308         draw_box(in_color_x, in_color_y, COLOR_W, COLOR_H);
 309         flash(in_color_x, in_color_y, COLOR_W, COLOR_H);
 310 }
 311
 312 void GradientWindow::update_out_color()
 313 {
 314 //printf("GradientWindow::update_out_color 1 %08x\n", plugin->config.get_in_color());
 315         set_color(plugin->config.get_out_color());
 316         draw_box(out_color_x, out_color_y, COLOR_W, COLOR_H);
 317         flash(out_color_x, out_color_y, COLOR_W, COLOR_H);
 318 }
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328 GradientShape::GradientShape(GradientMain *plugin,
 329         GradientWindow *gui,
 330         int x,
 331         int y)
 332  : BC_PopupMenu(x, y, 100, to_text(plugin->config.shape), 1)
 333 {
 334         this->plugin = plugin;
 335         this->gui = gui;
 336 }
 337 void GradientShape::create_objects()
 338 {
 339         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 340         add_item(new BC_MenuItem(to_text(GradientConfig::RADIAL)));
 341 }
 342 char* GradientShape::to_text(int shape)
 343 {
 344         switch(shape)
 345         {
 346                 case GradientConfig::LINEAR:
 347                         return _("Linear");
 348                 default:
 349                         return _("Radial");
 350         }
 351 }
 352 int GradientShape::from_text(char *text)
 353 {
 354         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 355                 return GradientConfig::LINEAR;
 356         return GradientConfig::RADIAL;
 357 }
 358 int GradientShape::handle_event()
 359 {
 360         plugin->config.shape = from_text(get_text());
 361         gui->update_shape();
 362         plugin->send_configure_change();
 363         return 1;
 364 }
 365
 366
 367
 368
 369 GradientCenterX::GradientCenterX(GradientMain *plugin, int x, int y)
 370  : BC_FPot(x, y, plugin->config.center_x, 0, 100)
 371 {
 372         this->plugin = plugin;
 373 }
 374 int GradientCenterX::handle_event()
 375 {
 376         plugin->config.center_x = get_value();
 377         plugin->send_configure_change();
 378         return 1;
 379 }
 380
 381
 382
 383 GradientCenterY::GradientCenterY(GradientMain *plugin, int x, int y)
 384  : BC_FPot(x, y, plugin->config.center_y, 0, 100)
 385 {
 386         this->plugin = plugin;
 387 }
 388
 389 int GradientCenterY::handle_event()
 390 {
 391         plugin->config.center_y = get_value();
 392         plugin->send_configure_change();
 393         return 1;
 394 }
 395
 396
 397
 398
 399 GradientAngle::GradientAngle(GradientMain *plugin, int x, int y)
 400  : BC_FPot(x,
 401         y,
 402         plugin->config.angle,
 403         -180,
 404         180)
 405 {
 406         this->plugin = plugin;
 407 }
 408
 409 int GradientAngle::handle_event()
 410 {
 411         plugin->config.angle = get_value();
 412         plugin->send_configure_change();
 413         return 1;
 414 }
 415
 416
 417 GradientRate::GradientRate(GradientMain *plugin, int x, int y)
 418  : BC_PopupMenu(x,
 419         y,
 420         100,
 421         to_text(plugin->config.rate),
 422         1)
 423 {
 424         this->plugin = plugin;
 425 }
 426 void GradientRate::create_objects()
 427 {
 428         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 429         add_item(new BC_MenuItem(to_text(GradientConfig::LOG)));
 430         add_item(new BC_MenuItem(to_text(GradientConfig::SQUARE)));
 431 }
 432 char* GradientRate::to_text(int shape)
 433 {
 434         switch(shape)
 435         {
 436                 case GradientConfig::LINEAR:
 437                         return _("Linear");
 438                 case GradientConfig::LOG:
 439                         return _("Log");
 440                 default:
 441                         return _("Square");
 442         }
 443 }
 444 int GradientRate::from_text(char *text)
 445 {
 446         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 447                 return GradientConfig::LINEAR;
 448         if(!strcmp(text, to_text(GradientConfig::LOG)))
 449                 return GradientConfig::LOG;
 450         return GradientConfig::SQUARE;
 451 }
 452 int GradientRate::handle_event()
 453 {
 454         plugin->config.rate = from_text(get_text());
 455         plugin->send_configure_change();
 456         return 1;
 457 }
 458
 459
 460
 461 GradientInRadius::GradientInRadius(GradientMain *plugin, int x, int y)
 462  : BC_FSlider(x,
 463         y,
 464         0,
 465         200,
 466         200,
 467         (float)0,
 468         (float)100,
 469         (float)plugin->config.in_radius)
 470 {
 471         this->plugin = plugin;
 472 }
 473
 474 int GradientInRadius::handle_event()
 475 {
 476         plugin->config.in_radius = get_value();
 477         plugin->send_configure_change();
 478         return 1;
 479 }
 480
 481
 482 GradientOutRadius::GradientOutRadius(GradientMain *plugin, int x, int y)
 483  : BC_FSlider(x,
 484         y,
 485         0,
 486         200,
 487         200,
 488         (float)0,
 489         (float)100,
 490         (float)plugin->config.out_radius)
 491 {
 492         this->plugin = plugin;
 493 }
 494
 495 int GradientOutRadius::handle_event()
 496 {
 497         plugin->config.out_radius = get_value();
 498         plugin->send_configure_change();
 499         return 1;
 500 }
 501
 502 GradientInColorButton::GradientInColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 503  : BC_GenericButton(x, y, _("Inner color:"))
 504 {
 505         this->plugin = plugin;
 506         this->window = window;
 507 }
 508
 509 int GradientInColorButton::handle_event()
 510 {
 511         window->in_color_thread->start_window(
 512                 plugin->config.get_in_color(),
 513                 plugin->config.in_a);
 514         return 1;
 515 }
 516
 517
 518 GradientOutColorButton::GradientOutColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 519  : BC_GenericButton(x, y, _("Outer color:"))
 520 {
 521         this->plugin = plugin;
 522         this->window = window;
 523 }
 524
 525 int GradientOutColorButton::handle_event()
 526 {
 527         window->out_color_thread->start_window(
 528                 plugin->config.get_out_color(),
 529                 plugin->config.out_a);
 530         return 1;
 531 }
 532
 533
 534
 535 GradientInColorThread::GradientInColorThread(GradientMain *plugin,
 536         GradientWindow *window)
 537  : ColorThread(1, _("Inner color"))
 538 {
 539         this->plugin = plugin;
 540         this->window = window;
 541 }
 542
 543 int GradientInColorThread::handle_new_color(int output, int alpha)
 544 {
 545         plugin->config.in_r = (output & 0xff0000) >> 16;
 546         plugin->config.in_g = (output & 0xff00) >> 8;
 547         plugin->config.in_b = (output & 0xff);
 548         plugin->config.in_a = alpha;
 549
 550         window->lock_window("GradientInColorThread::handle_new_color");
 551         window->update_in_color();
 552         window->flush();
 553         window->unlock_window();
 554         plugin->send_configure_change();
 555 // printf("GradientInColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 556 // plugin->config.in_r,
 557 // plugin->config.in_g,
 558 // plugin->config.in_b,
 559 // plugin->config.in_a,
 560 // plugin->config.out_r,
 561 // plugin->config.out_g,
 562 // plugin->config.out_b,
 563 // plugin->config.out_a);
 564
 565         return 1;
 566 }
 567
 568
 569
 570 GradientOutColorThread::GradientOutColorThread(GradientMain *plugin,
 571         GradientWindow *window)
 572  : ColorThread(1, _("Outer color"))
 573 {
 574         this->plugin = plugin;
 575         this->window = window;
 576 }
 577
 578 int GradientOutColorThread::handle_new_color(int output, int alpha)
 579 {
 580         plugin->config.out_r = (output & 0xff0000) >> 16;
 581         plugin->config.out_g = (output & 0xff00) >> 8;
 582         plugin->config.out_b = (output & 0xff);
 583         plugin->config.out_a = alpha;
 584         window->lock_window("GradientOutColorThread::handle_new_color");
 585         window->update_out_color();
 586         window->flush();
 587         window->unlock_window();
 588         plugin->send_configure_change();
 589 // printf("GradientOutColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 590 // plugin->config.in_r,
 591 // plugin->config.in_g,
 592 // plugin->config.in_b,
 593 // plugin->config.in_a,
 594 // plugin->config.out_r,
 595 // plugin->config.out_g,
 596 // plugin->config.out_b,
 597 // plugin->config.out_a);
 598         return 1;
 599 }
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612 GradientMain::GradientMain(PluginServer *server)
 613  : PluginVClient(server)
 614 {
 615
 616         need_reconfigure = 1;
 617         gradient = 0;
 618         engine = 0;
 619         overlayer = 0;
 620 }
 621
 622 GradientMain::~GradientMain()
 623 {
 624
 625
 626         if(gradient) delete gradient;
 627         if(engine) delete engine;
 628         if(overlayer) delete overlayer;
 629 }
 630
 631 const char* GradientMain::plugin_title() { return _("Gradient"); }
 632 int GradientMain::is_realtime() { return 1; }
 633
 634
 635 NEW_WINDOW_MACRO(GradientMain, GradientWindow)
 636
 637 LOAD_CONFIGURATION_MACRO(GradientMain, GradientConfig)
 638
 639 int GradientMain::is_synthesis()
 640 {
 641         return 1;
 642 }
 643
 644
 645 int GradientMain::process_buffer(VFrame *frame,
 646         int64_t start_position,
 647         double frame_rate)
 648 {
 649         this->input = frame;
 650         this->output = frame;
 651         need_reconfigure |= load_configuration();
 652
 653         int need_alpha = config.in_a != 0xff || config.out_a != 0xff;
 654         if(need_alpha)
 655                 read_frame(frame,
 656                         0,
 657                         start_position,
 658                         frame_rate,
 659                         get_use_opengl());
 660         if(get_use_opengl()) return run_opengl();
 661
 662         int gradient_cmodel = input->get_color_model();
 663         if(need_alpha && BC_CModels::components(gradient_cmodel) == 3)
 664         {
 665                 switch(gradient_cmodel)
 666                 {
 667                         case BC_RGB888:
 668                                 gradient_cmodel = BC_RGBA8888;
 669                                 break;
 670                         case BC_RGB_FLOAT:
 671                                 gradient_cmodel = BC_RGBA_FLOAT;
 672                                 break;
 673                         case BC_YUV888:
 674                                 gradient_cmodel = BC_YUVA8888;
 675                                 break;
 676                 }
 677         }
 678
 679         if(gradient && gradient->get_color_model() != gradient_cmodel)
 680         {
 681                 delete gradient;
 682                 gradient = 0;
 683         }
 684
 685         if(!gradient) gradient = new VFrame(0,
 686                 -1,
 687                 input->get_w(),
 688                 input->get_h(),
 689                 gradient_cmodel,
 690                 -1);
 691
 692         if(!engine) engine = new GradientServer(this,
 693                 get_project_smp() + 1,
 694                 get_project_smp() + 1);
 695         engine->process_packages();
 696
 697 // Use overlay routine in GradientServer if mismatched colormodels
 698         if(gradient->get_color_model() == output->get_color_model())
 699         {
 700                 if(!overlayer) overlayer = new OverlayFrame(get_project_smp() + 1);
 701                 overlayer->overlay(output,
 702                         gradient,
 703                         0,
 704                         0,
 705                         input->get_w(),
 706                         input->get_h(),
 707                         0,
 708                         0,
 709                         input->get_w(),
 710                         input->get_h(),
 711                         1.0,
 712                         TRANSFER_NORMAL,
 713                         NEAREST_NEIGHBOR);
 714         }
 715
 716
 717         return 0;
 718 }
 719
 720
 721 void GradientMain::update_gui()
 722 {
 723         if(thread)
 724         {
 725                 if(load_configuration())
 726                 {
 727                         ((GradientWindow*)thread->window)->lock_window("GradientMain::update_gui");
 728                         ((GradientWindow*)thread->window)->rate->set_text(GradientRate::to_text(config.rate));
 729                         ((GradientWindow*)thread->window)->in_radius->update(config.in_radius);
 730                         ((GradientWindow*)thread->window)->out_radius->update(config.out_radius);
 731                         ((GradientWindow*)thread->window)->shape->set_text(GradientShape::to_text(config.shape));
 732                         if(((GradientWindow*)thread->window)->angle)
 733                                 ((GradientWindow*)thread->window)->angle->update(config.angle);
 734                         if(((GradientWindow*)thread->window)->center_x)
 735                                 ((GradientWindow*)thread->window)->center_x->update(config.center_x);
 736                         if(((GradientWindow*)thread->window)->center_y)
 737                                 ((GradientWindow*)thread->window)->center_y->update(config.center_y);
 738                         ((GradientWindow*)thread->window)->update_in_color();
 739                         ((GradientWindow*)thread->window)->update_out_color();
 740                         ((GradientWindow*)thread->window)->update_shape();
 741                         ((GradientWindow*)thread->window)->unlock_window();
 742                         ((GradientWindow*)thread->window)->in_color_thread->update_gui(config.get_in_color(), config.in_a);
 743                         ((GradientWindow*)thread->window)->out_color_thread->update_gui(config.get_out_color(), config.out_a);
 744                 }
 745         }
 746 }
 747
 748
 749
 750
 751 void GradientMain::save_data(KeyFrame *keyframe)
 752 {
 753         FileXML output;
 754
 755 // cause data to be stored directly in text
 756         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 757         output.tag.set_title("GRADIENT");
 758
 759         output.tag.set_property("ANGLE", config.angle);
 760         output.tag.set_property("IN_RADIUS", config.in_radius);
 761         output.tag.set_property("OUT_RADIUS", config.out_radius);
 762         output.tag.set_property("IN_R", config.in_r);
 763         output.tag.set_property("IN_G", config.in_g);
 764         output.tag.set_property("IN_B", config.in_b);
 765         output.tag.set_property("IN_A", config.in_a);
 766         output.tag.set_property("OUT_R", config.out_r);
 767         output.tag.set_property("OUT_G", config.out_g);
 768         output.tag.set_property("OUT_B", config.out_b);
 769         output.tag.set_property("OUT_A", config.out_a);
 770         output.tag.set_property("SHAPE", config.shape);
 771         output.tag.set_property("RATE", config.rate);
 772         output.tag.set_property("CENTER_X", config.center_x);
 773         output.tag.set_property("CENTER_Y", config.center_y);
 774         output.append_tag();
 775         output.tag.set_title("/GRADIENT");
 776         output.append_tag();
 777         output.append_newline();
 778         output.terminate_string();
 779 }
 780
 781 void GradientMain::read_data(KeyFrame *keyframe)
 782 {
 783         FileXML input;
 784
 785         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 786
 787         int result = 0;
 788
 789         while(!result)
 790         {
 791                 result = input.read_tag();
 792
 793                 if(!result)
 794                 {
 795                         if(input.tag.title_is("GRADIENT"))
 796                         {
 797                                 config.angle = input.tag.get_property("ANGLE", config.angle);
 798                                 config.rate = input.tag.get_property("RATE", config.rate);
 799                                 config.in_radius = input.tag.get_property("IN_RADIUS", config.in_radius);
 800                                 config.out_radius = input.tag.get_property("OUT_RADIUS", config.out_radius);
 801                                 config.in_r = input.tag.get_property("IN_R", config.in_r);
 802                                 config.in_g = input.tag.get_property("IN_G", config.in_g);
 803                                 config.in_b = input.tag.get_property("IN_B", config.in_b);
 804                                 config.in_a = input.tag.get_property("IN_A", config.in_a);
 805                                 config.out_r = input.tag.get_property("OUT_R", config.out_r);
 806                                 config.out_g = input.tag.get_property("OUT_G", config.out_g);
 807                                 config.out_b = input.tag.get_property("OUT_B", config.out_b);
 808                                 config.out_a = input.tag.get_property("OUT_A", config.out_a);
 809                                 config.shape = input.tag.get_property("SHAPE", config.shape);
 810                                 config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 811                                 config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 812                         }
 813                 }
 814         }
 815 }
 816
 817 int GradientMain::handle_opengl()
 818 {
 819 #ifdef HAVE_GL
 820         const char *head_frag =
 821                 "uniform sampler2D tex;\n"
 822                 "uniform float half_w;\n"
 823                 "uniform float half_h;\n"
 824                 "uniform float center_x;\n"
 825                 "uniform float center_y;\n"
 826                 "uniform float half_gradient_size;\n"
 827                 "uniform float sin_angle;\n"
 828                 "uniform float cos_angle;\n"
 829                 "uniform vec4 out_color;\n"
 830                 "uniform vec4 in_color;\n"
 831                 "uniform float in_radius;\n"
 832                 "uniform float out_radius;\n"
 833                 "uniform float radius_diff;\n"
 834                 "\n"
 835                 "void main()\n"
 836                 "{\n"
 837                 "       vec2 out_coord = gl_TexCoord[0].st;\n";
 838
 839         const char *linear_shape =
 840                 "       vec2 in_coord = vec2(out_coord.x - half_w, half_h - out_coord.y);\n"
 841                 "       float mag = half_gradient_size - \n"
 842                 "               (in_coord.x * sin_angle + in_coord.y * cos_angle);\n";
 843
 844         const char *radial_shape =
 845                 "       vec2 in_coord = vec2(out_coord.x - center_x, out_coord.y - center_y);\n"
 846                 "       float mag = length(vec2(in_coord.x, in_coord.y));\n";
 847
 848 // No clamp function in NVidia
 849         const char *linear_rate =
 850                 "       mag = min(max(mag, in_radius), out_radius);\n"
 851                 "       float opacity = (mag - in_radius) / radius_diff;\n";
 852
 853 // NVidia warns about exp, but exp is in the GLSL spec.
 854         const char *log_rate =
 855                 "       mag = max(mag, in_radius);\n"
 856                 "       float opacity = 1.0 - \n"
 857                 "               exp(1.0 * -(mag - in_radius) / radius_diff);\n";
 858
 859         const char *square_rate =
 860                 "       mag = min(max(mag, in_radius), out_radius);\n"
 861                 "       float opacity = pow((mag - in_radius) / radius_diff, 2.0);\n"
 862                 "       opacity = min(opacity, 1.0);\n";
 863
 864         const char *tail_frag =
 865                 "       vec4 color = mix(in_color, out_color, opacity);\n"
 866                 "       vec4 bg_color = texture2D(tex, out_coord);\n"
 867                 "       gl_FragColor.rgb = mix(bg_color.rgb, color.rgb, color.a);\n"
 868                 "       gl_FragColor.a = max(bg_color.a, color.a);\n"
 869                 "}\n";
 870
 871
 872         const char *shader_stack[5] = { 0, 0, 0, 0, 0 };
 873         shader_stack[0] = head_frag;
 874
 875         switch(config.shape)
 876         {
 877                 case GradientConfig::LINEAR:
 878                         shader_stack[1] = linear_shape;
 879                         break;
 880
 881                 default:
 882                         shader_stack[1] = radial_shape;
 883                         break;
 884         }
 885
 886         switch(config.rate)
 887         {
 888                 case GradientConfig::LINEAR:
 889                         shader_stack[2] = linear_rate;
 890                         break;
 891                 case GradientConfig::LOG:
 892                         shader_stack[2] = log_rate;
 893                         break;
 894                 case GradientConfig::SQUARE:
 895                         shader_stack[2] = square_rate;
 896                         break;
 897         }
 898
 899         shader_stack[3] = tail_frag;
 900 // Force frame to create texture without copying to it if full alpha.
 901         if(config.in_a >= 0xff &&
 902                 config.out_a >= 0xff)
 903                 get_output()->set_opengl_state(VFrame::TEXTURE);
 904         get_output()->to_texture();
 905         get_output()->enable_opengl();
 906         get_output()->init_screen();
 907         get_output()->bind_texture(0);
 908
 909         unsigned int frag = VFrame::make_shader(0,
 910                 shader_stack[0],
 911                 shader_stack[1],
 912                 shader_stack[2],
 913                 shader_stack[3],
 914                 0);
 915
 916         if(frag)
 917         {
 918                 glUseProgram(frag);
 919                 float w = get_output()->get_w();
 920                 float h = get_output()->get_h();
 921                 float texture_w = get_output()->get_texture_w();
 922                 float texture_h = get_output()->get_texture_h();
 923                 glUniform1i(glGetUniformLocation(frag, "tex"), 0);
 924                 glUniform1f(glGetUniformLocation(frag, "half_w"), w / 2 / texture_w);
 925                 glUniform1f(glGetUniformLocation(frag, "half_h"), h / 2 / texture_h);
 926                 if(config.shape == GradientConfig::LINEAR)
 927                 {
 928                         glUniform1f(glGetUniformLocation(frag, "center_x"),
 929                                 w / 2 / texture_w);
 930                         glUniform1f(glGetUniformLocation(frag, "center_y"),
 931                                 h / 2 / texture_h);
 932                 }
 933                 else
 934                 {
 935                         glUniform1f(glGetUniformLocation(frag, "center_x"),
 936                                 (float)config.center_x * w / 100 / texture_w);
 937                         glUniform1f(glGetUniformLocation(frag, "center_y"),
 938                                 (float)config.center_y * h / 100 / texture_h);
 939                 }
 940                 float gradient_size = hypotf(w / texture_w, h / texture_h);
 941                 glUniform1f(glGetUniformLocation(frag, "half_gradient_size"),
 942                         gradient_size / 2);
 943                 glUniform1f(glGetUniformLocation(frag, "sin_angle"),
 944                         sin(config.angle * (M_PI / 180)));
 945                 glUniform1f(glGetUniformLocation(frag, "cos_angle"),
 946                         cos(config.angle * (M_PI / 180)));
 947                 float in_radius = (float)config.in_radius / 100 * gradient_size;
 948                 glUniform1f(glGetUniformLocation(frag, "in_radius"), in_radius);
 949                 float out_radius = (float)config.out_radius / 100 * gradient_size;
 950                 glUniform1f(glGetUniformLocation(frag, "out_radius"), out_radius);
 951                 glUniform1f(glGetUniformLocation(frag, "radius_diff"),
 952                         out_radius - in_radius);
 953
 954                 switch(get_output()->get_color_model())
 955                 {
 956                         case BC_YUV888:
 957                         case BC_YUVA8888:
 958                         {
 959                                 float in1, in2, in3, in4;
 960                                 float out1, out2, out3, out4;
 961                                 YUV::rgb_to_yuv_f((float)config.in_r / 0xff,
 962                                         (float)config.in_g / 0xff,
 963                                         (float)config.in_b / 0xff,
 964                                         in1,
 965                                         in2,
 966                                         in3);
 967                                 in4 = (float)config.in_a / 0xff;
 968                                 YUV::rgb_to_yuv_f((float)config.out_r / 0xff,
 969                                         (float)config.out_g / 0xff,
 970                                         (float)config.out_b / 0xff,
 971                                         out1,
 972                                         out2,
 973                                         out3);
 974                                 in2 += 0.5;
 975                                 in3 += 0.5;
 976                                 out2 += 0.5;
 977                                 out3 += 0.5;
 978                                 out4 = (float)config.out_a / 0xff;
 979                                 glUniform4f(glGetUniformLocation(frag, "out_color"),
 980                                         out1, out2, out3, out4);
 981                                 glUniform4f(glGetUniformLocation(frag, "in_color"),
 982                                         in1, in2, in3, in4);
 983                                 break;
 984                         }
 985
 986                         default:
 987                                 glUniform4f(glGetUniformLocation(frag, "out_color"),
 988                                         (float)config.out_r / 0xff,
 989                                         (float)config.out_g / 0xff,
 990                                         (float)config.out_b / 0xff,
 991                                         (float)config.out_a / 0xff);
 992                                 glUniform4f(glGetUniformLocation(frag, "in_color"),
 993                                         (float)config.in_r / 0xff,
 994                                         (float)config.in_g / 0xff,
 995                                         (float)config.in_b / 0xff,
 996                                         (float)config.in_a / 0xff);
 997                                 break;
 998                 }
 999         }
1000
1001         get_output()->draw_texture();
1002         glUseProgram(0);
1003         get_output()->set_opengl_state(VFrame::SCREEN);
1004
1005 #endif
1006         return 0;
1007 }
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019 GradientPackage::GradientPackage()
1020  : LoadPackage()
1021 {
1022 }
1023
1024
1025
1026
1027 GradientUnit::GradientUnit(GradientServer *server, GradientMain *plugin)
1028  : LoadClient(server)
1029 {
1030         this->plugin = plugin;
1031         this->server = server;
1032 }
1033
1034
1035
1036
1037 static float calculate_opacity(float mag,
1038         float in_radius, float out_radius, int rate)
1039 {
1040         float opacity = 0.0;
1041         switch(rate)
1042         {
1043                 case GradientConfig::LINEAR:
1044                         if(mag < in_radius)
1045                                 opacity = 0.0;
1046                         else
1047                         if(mag >= out_radius)
1048                                 opacity = 1.0;
1049                         else
1050                                 opacity = (float)(mag - in_radius) / (out_radius - in_radius);
1051                         break;
1052
1053                 case GradientConfig::LOG:
1054                         if(mag < in_radius)
1055                                 opacity = 0;
1056                         else
1057 // Let this one decay beyond out_radius
1058                                 opacity = 1 - exp(1.0 * -(float)(mag - in_radius) /
1059                                         (out_radius - in_radius));
1060                         break;
1061
1062                 case GradientConfig::SQUARE:
1063                         if(mag < in_radius)
1064                                 opacity = 0.0;
1065                         else
1066                         if(mag >= out_radius)
1067                                 opacity = 1.0;
1068                         else
1069                                 opacity = powf((float)(mag - in_radius) /
1070                                         (out_radius - in_radius), 2.0);
1071                         break;
1072         }
1073         CLAMP(opacity, 0.0, 1.0);
1074         return opacity;
1075 }
1076
1077 #define CREATE_GRADIENT(type, temp, components, max) \
1078 { \
1079 /* Synthesize linear gradient for lookups */ \
1080  \
1081         r_table = malloc(sizeof(type) * gradient_size); \
1082         g_table = malloc(sizeof(type) * gradient_size); \
1083         b_table = malloc(sizeof(type) * gradient_size); \
1084         a_table = malloc(sizeof(type) * gradient_size); \
1085  \
1086         for(int i = 0; i < gradient_size; i++) \
1087         { \
1088                 float opacity = calculate_opacity(i, in_radius, out_radius, plugin->config.rate); \
1089                 float transparency; \
1090  \
1091                 transparency = 1.0 - opacity; \
1092                 ((type*)r_table)[i] = (type)(out1 * opacity + in1 * transparency); \
1093                 ((type*)g_table)[i] = (type)(out2 * opacity + in2 * transparency); \
1094                 ((type*)b_table)[i] = (type)(out3 * opacity + in3 * transparency); \
1095                 ((type*)a_table)[i] = (type)(out4 * opacity + in4 * transparency); \
1096         } \
1097  \
1098         for(int i = pkg->y1; i < pkg->y2; i++) \
1099         { \
1100                 type *gradient_row = (type*)plugin->gradient->get_rows()[i]; \
1101                 type *out_row = (type*)plugin->get_output()->get_rows()[i]; \
1102  \
1103                 switch(plugin->config.shape) \
1104                 { \
1105                         case GradientConfig::LINEAR: \
1106                                 for(int j = 0; j < w; j++) \
1107                                 { \
1108                                         int x = j - half_w; \
1109                                         int y = -(i - half_h); \
1110                  \
1111 /* Rotate by effect angle */ \
1112                                         int mag = (int)(gradient_size / 2 - \
1113                                                 (x * sin_angle + y * cos_angle) + \
1114                                                 0.5); \
1115                  \
1116 /* Get gradient value from these coords */ \
1117                  \
1118                                         if(sizeof(type) == 4) \
1119                                         { \
1120                                                 float opacity = calculate_opacity(mag,  \
1121                                                         in_radius,  \
1122                                                         out_radius, \
1123                                                         plugin->config.rate); \
1124                                                 float transparency = 1.0 - opacity; \
1125                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1126                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1127                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1128                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1129                                         } \
1130                                         else \
1131                                         if(mag < 0) \
1132                                         { \
1133                                                 gradient_row[0] = out1; \
1134                                                 gradient_row[1] = out2; \
1135                                                 gradient_row[2] = out3; \
1136                                                 if(components == 4) gradient_row[3] = out4; \
1137                                         } \
1138                                         else \
1139                                         if(mag >= gradient_size) \
1140                                         { \
1141                                                 gradient_row[0] = in1; \
1142                                                 gradient_row[1] = in2; \
1143                                                 gradient_row[2] = in3; \
1144                                                 if(components == 4) gradient_row[3] = in4; \
1145                                         } \
1146                                         else \
1147                                         { \
1148                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1149                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1150                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1151                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1152                                         } \
1153  \
1154 /* Overlay mixed colormodels onto output */ \
1155                                         if(gradient_cmodel != output_cmodel) \
1156                                         { \
1157                                                 temp opacity = gradient_row[3]; \
1158                                                 temp transparency = max - opacity; \
1159                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1160                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1161                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1162                                                 out_row += 3; \
1163                                         } \
1164  \
1165                                         gradient_row += components; \
1166                                 } \
1167                                 break; \
1168  \
1169                         case GradientConfig::RADIAL: \
1170                                 for(int j = 0; j < w; j++) \
1171                                 { \
1172                                         double x = j - center_x; \
1173                                         double y = i - center_y; \
1174                                         double magnitude = hypot(x, y); \
1175                                         int mag = (int)magnitude; \
1176                                         if(sizeof(type) == 4) \
1177                                         { \
1178                                                 float opacity = calculate_opacity(mag,  \
1179                                                         in_radius,  \
1180                                                         out_radius, \
1181                                                         plugin->config.rate); \
1182                                                 float transparency = 1.0 - opacity; \
1183                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1184                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1185                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1186                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1187                                         } \
1188                                         else \
1189                                         { \
1190                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1191                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1192                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1193                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1194                                         } \
1195  \
1196 /* Overlay mixed colormodels onto output */ \
1197                                         if(gradient_cmodel != output_cmodel) \
1198                                         { \
1199                                                 temp opacity = gradient_row[3]; \
1200                                                 temp transparency = max - opacity; \
1201                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1202                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1203                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1204                                                 out_row += 3; \
1205                                         } \
1206  \
1207                                         gradient_row += components; \
1208                                 } \
1209                                 break; \
1210                 } \
1211         } \
1212 }
1213
1214 void GradientUnit::process_package(LoadPackage *package)
1215 {
1216         GradientPackage *pkg = (GradientPackage*)package;
1217         int h = plugin->input->get_h();
1218         int w = plugin->input->get_w();
1219         int half_w = w / 2;
1220         int half_h = h / 2;
1221         int gradient_size = (int)(ceil(hypot(w, h)));
1222         int in_radius = (int)(plugin->config.in_radius / 100 * gradient_size);
1223         int out_radius = (int)(plugin->config.out_radius / 100 * gradient_size);
1224         double sin_angle = sin(plugin->config.angle * (M_PI / 180));
1225         double cos_angle = cos(plugin->config.angle * (M_PI / 180));
1226         double center_x = plugin->config.center_x * w / 100;
1227         double center_y = plugin->config.center_y * h / 100;
1228         void *r_table = 0;
1229         void *g_table = 0;
1230         void *b_table = 0;
1231         void *a_table = 0;
1232         int gradient_cmodel = plugin->gradient->get_color_model();
1233         int output_cmodel = plugin->get_output()->get_color_model();
1234
1235         if(in_radius > out_radius)
1236         {
1237             in_radius ^= out_radius;
1238             out_radius ^= in_radius;
1239             in_radius ^= out_radius;
1240         }
1241
1242
1243         switch(gradient_cmodel)
1244         {
1245                 case BC_RGB888:
1246                 {
1247                         int in1 = plugin->config.in_r;
1248                         int in2 = plugin->config.in_g;
1249                         int in3 = plugin->config.in_b;
1250                         int in4 = plugin->config.in_a;
1251                         int out1 = plugin->config.out_r;
1252                         int out2 = plugin->config.out_g;
1253                         int out3 = plugin->config.out_b;
1254                         int out4 = plugin->config.out_a;
1255                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1256                         break;
1257                 }
1258
1259                 case BC_RGBA8888:
1260                 {
1261                         int in1 = plugin->config.in_r;
1262                         int in2 = plugin->config.in_g;
1263                         int in3 = plugin->config.in_b;
1264                         int in4 = plugin->config.in_a;
1265                         int out1 = plugin->config.out_r;
1266                         int out2 = plugin->config.out_g;
1267                         int out3 = plugin->config.out_b;
1268                         int out4 = plugin->config.out_a;
1269                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1270                         break;
1271                 }
1272
1273                 case BC_RGB_FLOAT:
1274                 {
1275                         float in1 = (float)plugin->config.in_r / 0xff;
1276                         float in2 = (float)plugin->config.in_g / 0xff;
1277                         float in3 = (float)plugin->config.in_b / 0xff;
1278                         float in4 = (float)plugin->config.in_a / 0xff;
1279                         float out1 = (float)plugin->config.out_r / 0xff;
1280                         float out2 = (float)plugin->config.out_g / 0xff;
1281                         float out3 = (float)plugin->config.out_b / 0xff;
1282                         float out4 = (float)plugin->config.out_a / 0xff;
1283                         CREATE_GRADIENT(float, float, 3, 1.0)
1284                         break;
1285                 }
1286
1287                 case BC_RGBA_FLOAT:
1288                 {
1289                         float in1 = (float)plugin->config.in_r / 0xff;
1290                         float in2 = (float)plugin->config.in_g / 0xff;
1291                         float in3 = (float)plugin->config.in_b / 0xff;
1292                         float in4 = (float)plugin->config.in_a / 0xff;
1293                         float out1 = (float)plugin->config.out_r / 0xff;
1294                         float out2 = (float)plugin->config.out_g / 0xff;
1295                         float out3 = (float)plugin->config.out_b / 0xff;
1296                         float out4 = (float)plugin->config.out_a / 0xff;
1297                         CREATE_GRADIENT(float, float, 4, 1.0)
1298                         break;
1299                 }
1300
1301                 case BC_YUV888:
1302                 {
1303                         int in1, in2, in3, in4;
1304                         int out1, out2, out3, out4;
1305                         yuv.rgb_to_yuv_8(plugin->config.in_r,
1306                                 plugin->config.in_g,
1307                                 plugin->config.in_b,
1308                                 in1,
1309                                 in2,
1310                                 in3);
1311                         in4 = plugin->config.in_a;
1312                         yuv.rgb_to_yuv_8(plugin->config.out_r,
1313                                 plugin->config.out_g,
1314                                 plugin->config.out_b,
1315                                 out1,
1316                                 out2,
1317                                 out3);
1318                         out4 = plugin->config.out_a;
1319                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1320                         break;
1321                 }
1322
1323                 case BC_YUVA8888:
1324                 {
1325                         int in1, in2, in3, in4;
1326                         int out1, out2, out3, out4;
1327                         yuv.rgb_to_yuv_8(plugin->config.in_r,
1328                                 plugin->config.in_g,
1329                                 plugin->config.in_b,
1330                                 in1,
1331                                 in2,
1332                                 in3);
1333                         in4 = plugin->config.in_a;
1334                         yuv.rgb_to_yuv_8(plugin->config.out_r,
1335                                 plugin->config.out_g,
1336                                 plugin->config.out_b,
1337                                 out1,
1338                                 out2,
1339                                 out3);
1340                         out4 = plugin->config.out_a;
1341                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1342                         break;
1343                 }
1344         }
1345
1346         if(r_table) free(r_table);
1347         if(g_table) free(g_table);
1348         if(b_table) free(b_table);
1349         if(a_table) free(a_table);
1350 }
1351
1352
1353
1354
1355
1356
1357 GradientServer::GradientServer(GradientMain *plugin,
1358         int total_clients,
1359         int total_packages)
1360  : LoadServer(total_clients, total_packages)
1361 {
1362         this->plugin = plugin;
1363 }
1364
1365 void GradientServer::init_packages()
1366 {
1367         for(int i = 0; i < get_total_packages(); i++)
1368         {
1369                 GradientPackage *package = (GradientPackage*)get_package(i);
1370                 package->y1 = plugin->input->get_h() *
1371                         i /
1372                         get_total_packages();
1373                 package->y2 = plugin->input->get_h() *
1374                         (i + 1) /
1375                         get_total_packages();
1376         }
1377 }
1378
1379 LoadClient* GradientServer::new_client()
1380 {
1381         return new GradientUnit(this, plugin);
1382 }
1383
1384 LoadPackage* GradientServer::new_package()
1385 {
1386         return new GradientPackage;
1387 }
1388
1389
1390
1391
1392