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         show_window();
 300 }
 301
 302
 303
 304
 305 void GradientWindow::update_in_color()
 306 {
 307 //printf("GradientWindow::update_in_color 1 %08x\n", plugin->config.get_in_color());
 308         set_color(plugin->config.get_in_color());
 309         draw_box(in_color_x, in_color_y, COLOR_W, COLOR_H);
 310         flash(in_color_x, in_color_y, COLOR_W, COLOR_H);
 311 }
 312
 313 void GradientWindow::update_out_color()
 314 {
 315 //printf("GradientWindow::update_out_color 1 %08x\n", plugin->config.get_in_color());
 316         set_color(plugin->config.get_out_color());
 317         draw_box(out_color_x, out_color_y, COLOR_W, COLOR_H);
 318         flash(out_color_x, out_color_y, COLOR_W, COLOR_H);
 319 }
 320
 321 void GradientWindow::done_event(int result)
 322 {
 323         in_color_thread->close_window();
 324         out_color_thread->close_window();
 325 }
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335 GradientShape::GradientShape(GradientMain *plugin,
 336         GradientWindow *gui,
 337         int x,
 338         int y)
 339  : BC_PopupMenu(x, y, 100, to_text(plugin->config.shape), 1)
 340 {
 341         this->plugin = plugin;
 342         this->gui = gui;
 343 }
 344 void GradientShape::create_objects()
 345 {
 346         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 347         add_item(new BC_MenuItem(to_text(GradientConfig::RADIAL)));
 348 }
 349 char* GradientShape::to_text(int shape)
 350 {
 351         switch(shape)
 352         {
 353                 case GradientConfig::LINEAR:
 354                         return _("Linear");
 355                 default:
 356                         return _("Radial");
 357         }
 358 }
 359 int GradientShape::from_text(char *text)
 360 {
 361         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 362                 return GradientConfig::LINEAR;
 363         return GradientConfig::RADIAL;
 364 }
 365 int GradientShape::handle_event()
 366 {
 367         plugin->config.shape = from_text(get_text());
 368         gui->update_shape();
 369         plugin->send_configure_change();
 370         return 1;
 371 }
 372
 373
 374
 375
 376 GradientCenterX::GradientCenterX(GradientMain *plugin, int x, int y)
 377  : BC_FPot(x, y, plugin->config.center_x, 0, 100)
 378 {
 379         this->plugin = plugin;
 380 }
 381 int GradientCenterX::handle_event()
 382 {
 383         plugin->config.center_x = get_value();
 384         plugin->send_configure_change();
 385         return 1;
 386 }
 387
 388
 389
 390 GradientCenterY::GradientCenterY(GradientMain *plugin, int x, int y)
 391  : BC_FPot(x, y, plugin->config.center_y, 0, 100)
 392 {
 393         this->plugin = plugin;
 394 }
 395
 396 int GradientCenterY::handle_event()
 397 {
 398         plugin->config.center_y = get_value();
 399         plugin->send_configure_change();
 400         return 1;
 401 }
 402
 403
 404
 405
 406 GradientAngle::GradientAngle(GradientMain *plugin, int x, int y)
 407  : BC_FPot(x,
 408         y,
 409         plugin->config.angle,
 410         -180,
 411         180)
 412 {
 413         this->plugin = plugin;
 414 }
 415
 416 int GradientAngle::handle_event()
 417 {
 418         plugin->config.angle = get_value();
 419         plugin->send_configure_change();
 420         return 1;
 421 }
 422
 423
 424 GradientRate::GradientRate(GradientMain *plugin, int x, int y)
 425  : BC_PopupMenu(x,
 426         y,
 427         100,
 428         to_text(plugin->config.rate),
 429         1)
 430 {
 431         this->plugin = plugin;
 432 }
 433 void GradientRate::create_objects()
 434 {
 435         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 436         add_item(new BC_MenuItem(to_text(GradientConfig::LOG)));
 437         add_item(new BC_MenuItem(to_text(GradientConfig::SQUARE)));
 438 }
 439 char* GradientRate::to_text(int shape)
 440 {
 441         switch(shape)
 442         {
 443                 case GradientConfig::LINEAR:
 444                         return _("Linear");
 445                 case GradientConfig::LOG:
 446                         return _("Log");
 447                 default:
 448                         return _("Square");
 449         }
 450 }
 451 int GradientRate::from_text(char *text)
 452 {
 453         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 454                 return GradientConfig::LINEAR;
 455         if(!strcmp(text, to_text(GradientConfig::LOG)))
 456                 return GradientConfig::LOG;
 457         return GradientConfig::SQUARE;
 458 }
 459 int GradientRate::handle_event()
 460 {
 461         plugin->config.rate = from_text(get_text());
 462         plugin->send_configure_change();
 463         return 1;
 464 }
 465
 466
 467
 468 GradientInRadius::GradientInRadius(GradientMain *plugin, int x, int y)
 469  : BC_FSlider(x,
 470         y,
 471         0,
 472         200,
 473         200,
 474         (float)0,
 475         (float)100,
 476         (float)plugin->config.in_radius)
 477 {
 478         this->plugin = plugin;
 479 }
 480
 481 int GradientInRadius::handle_event()
 482 {
 483         plugin->config.in_radius = get_value();
 484         plugin->send_configure_change();
 485         return 1;
 486 }
 487
 488
 489 GradientOutRadius::GradientOutRadius(GradientMain *plugin, int x, int y)
 490  : BC_FSlider(x,
 491         y,
 492         0,
 493         200,
 494         200,
 495         (float)0,
 496         (float)100,
 497         (float)plugin->config.out_radius)
 498 {
 499         this->plugin = plugin;
 500 }
 501
 502 int GradientOutRadius::handle_event()
 503 {
 504         plugin->config.out_radius = get_value();
 505         plugin->send_configure_change();
 506         return 1;
 507 }
 508
 509 GradientInColorButton::GradientInColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 510  : BC_GenericButton(x, y, _("Inner color:"))
 511 {
 512         this->plugin = plugin;
 513         this->window = window;
 514 }
 515
 516 int GradientInColorButton::handle_event()
 517 {
 518         window->in_color_thread->start_window(
 519                 plugin->config.get_in_color(),
 520                 plugin->config.in_a);
 521         return 1;
 522 }
 523
 524
 525 GradientOutColorButton::GradientOutColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 526  : BC_GenericButton(x, y, _("Outer color:"))
 527 {
 528         this->plugin = plugin;
 529         this->window = window;
 530 }
 531
 532 int GradientOutColorButton::handle_event()
 533 {
 534         window->out_color_thread->start_window(
 535                 plugin->config.get_out_color(),
 536                 plugin->config.out_a);
 537         return 1;
 538 }
 539
 540
 541
 542 GradientInColorThread::GradientInColorThread(GradientMain *plugin,
 543         GradientWindow *window)
 544  : ColorPicker(1, _("Inner color"))
 545 {
 546         this->plugin = plugin;
 547         this->window = window;
 548 }
 549
 550 int GradientInColorThread::handle_new_color(int output, int alpha)
 551 {
 552         plugin->config.in_r = (output & 0xff0000) >> 16;
 553         plugin->config.in_g = (output & 0xff00) >> 8;
 554         plugin->config.in_b = (output & 0xff);
 555         plugin->config.in_a = alpha;
 556
 557         window->lock_window("GradientInColorThread::handle_new_color");
 558         window->update_in_color();
 559         window->flush();
 560         window->unlock_window();
 561         plugin->send_configure_change();
 562 // printf("GradientInColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 563 // plugin->config.in_r,
 564 // plugin->config.in_g,
 565 // plugin->config.in_b,
 566 // plugin->config.in_a,
 567 // plugin->config.out_r,
 568 // plugin->config.out_g,
 569 // plugin->config.out_b,
 570 // plugin->config.out_a);
 571
 572         return 1;
 573 }
 574
 575
 576
 577 GradientOutColorThread::GradientOutColorThread(GradientMain *plugin,
 578         GradientWindow *window)
 579  : ColorPicker(1, _("Outer color"))
 580 {
 581         this->plugin = plugin;
 582         this->window = window;
 583 }
 584
 585 int GradientOutColorThread::handle_new_color(int output, int alpha)
 586 {
 587         plugin->config.out_r = (output & 0xff0000) >> 16;
 588         plugin->config.out_g = (output & 0xff00) >> 8;
 589         plugin->config.out_b = (output & 0xff);
 590         plugin->config.out_a = alpha;
 591         window->lock_window("GradientOutColorThread::handle_new_color");
 592         window->update_out_color();
 593         window->flush();
 594         window->unlock_window();
 595         plugin->send_configure_change();
 596 // printf("GradientOutColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 597 // plugin->config.in_r,
 598 // plugin->config.in_g,
 599 // plugin->config.in_b,
 600 // plugin->config.in_a,
 601 // plugin->config.out_r,
 602 // plugin->config.out_g,
 603 // plugin->config.out_b,
 604 // plugin->config.out_a);
 605         return 1;
 606 }
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619 GradientMain::GradientMain(PluginServer *server)
 620  : PluginVClient(server)
 621 {
 622
 623         need_reconfigure = 1;
 624         gradient = 0;
 625         engine = 0;
 626         overlayer = 0;
 627 }
 628
 629 GradientMain::~GradientMain()
 630 {
 631
 632
 633         if(gradient) delete gradient;
 634         if(engine) delete engine;
 635         if(overlayer) delete overlayer;
 636 }
 637
 638 const char* GradientMain::plugin_title() { return _("Gradient"); }
 639 int GradientMain::is_realtime() { return 1; }
 640
 641
 642 NEW_WINDOW_MACRO(GradientMain, GradientWindow)
 643
 644 LOAD_CONFIGURATION_MACRO(GradientMain, GradientConfig)
 645
 646 int GradientMain::is_synthesis()
 647 {
 648         return 1;
 649 }
 650
 651
 652 int GradientMain::process_buffer(VFrame *frame,
 653         int64_t start_position,
 654         double frame_rate)
 655 {
 656         this->input = frame;
 657         this->output = frame;
 658         need_reconfigure |= load_configuration();
 659
 660         int need_alpha = config.in_a != 0xff || config.out_a != 0xff;
 661         if(need_alpha)
 662                 read_frame(frame,
 663                         0,
 664                         start_position,
 665                         frame_rate,
 666                         get_use_opengl());
 667         if(get_use_opengl()) return run_opengl();
 668
 669         int gradient_cmodel = input->get_color_model();
 670         if(need_alpha && BC_CModels::components(gradient_cmodel) == 3)
 671         {
 672                 switch(gradient_cmodel)
 673                 {
 674                         case BC_RGB888:
 675                                 gradient_cmodel = BC_RGBA8888;
 676                                 break;
 677                         case BC_RGB_FLOAT:
 678                                 gradient_cmodel = BC_RGBA_FLOAT;
 679                                 break;
 680                         case BC_YUV888:
 681                                 gradient_cmodel = BC_YUVA8888;
 682                                 break;
 683                 }
 684         }
 685
 686         if(gradient && gradient->get_color_model() != gradient_cmodel)
 687         {
 688                 delete gradient;
 689                 gradient = 0;
 690         }
 691
 692         if(!gradient)
 693                 gradient = new VFrame(input->get_w(), input->get_h(),
 694                         gradient_cmodel, 0);
 695
 696         if(!engine) engine = new GradientServer(this,
 697                 get_project_smp() + 1,
 698                 get_project_smp() + 1);
 699         engine->process_packages();
 700
 701 // Use overlay routine in GradientServer if mismatched colormodels
 702         if(gradient->get_color_model() == output->get_color_model())
 703         {
 704                 if(!overlayer) overlayer = new OverlayFrame(get_project_smp() + 1);
 705                 overlayer->overlay(output,
 706                         gradient,
 707                         0,
 708                         0,
 709                         input->get_w(),
 710                         input->get_h(),
 711                         0,
 712                         0,
 713                         input->get_w(),
 714                         input->get_h(),
 715                         1.0,
 716                         TRANSFER_NORMAL,
 717                         NEAREST_NEIGHBOR);
 718         }
 719
 720
 721         return 0;
 722 }
 723
 724
 725 void GradientMain::update_gui()
 726 {
 727         if(thread)
 728         {
 729                 if(load_configuration())
 730                 {
 731                         ((GradientWindow*)thread->window)->lock_window("GradientMain::update_gui");
 732                         ((GradientWindow*)thread->window)->rate->set_text(GradientRate::to_text(config.rate));
 733                         ((GradientWindow*)thread->window)->in_radius->update(config.in_radius);
 734                         ((GradientWindow*)thread->window)->out_radius->update(config.out_radius);
 735                         ((GradientWindow*)thread->window)->shape->set_text(GradientShape::to_text(config.shape));
 736                         if(((GradientWindow*)thread->window)->angle)
 737                                 ((GradientWindow*)thread->window)->angle->update(config.angle);
 738                         if(((GradientWindow*)thread->window)->center_x)
 739                                 ((GradientWindow*)thread->window)->center_x->update(config.center_x);
 740                         if(((GradientWindow*)thread->window)->center_y)
 741                                 ((GradientWindow*)thread->window)->center_y->update(config.center_y);
 742                         ((GradientWindow*)thread->window)->update_in_color();
 743                         ((GradientWindow*)thread->window)->update_out_color();
 744                         ((GradientWindow*)thread->window)->update_shape();
 745                         ((GradientWindow*)thread->window)->unlock_window();
 746                         ((GradientWindow*)thread->window)->in_color_thread->update_gui(config.get_in_color(), config.in_a);
 747                         ((GradientWindow*)thread->window)->out_color_thread->update_gui(config.get_out_color(), config.out_a);
 748                 }
 749         }
 750 }
 751
 752
 753
 754
 755 void GradientMain::save_data(KeyFrame *keyframe)
 756 {
 757         FileXML output;
 758
 759 // cause data to be stored directly in text
 760         output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
 761         output.tag.set_title("GRADIENT");
 762
 763         output.tag.set_property("ANGLE", config.angle);
 764         output.tag.set_property("IN_RADIUS", config.in_radius);
 765         output.tag.set_property("OUT_RADIUS", config.out_radius);
 766         output.tag.set_property("IN_R", config.in_r);
 767         output.tag.set_property("IN_G", config.in_g);
 768         output.tag.set_property("IN_B", config.in_b);
 769         output.tag.set_property("IN_A", config.in_a);
 770         output.tag.set_property("OUT_R", config.out_r);
 771         output.tag.set_property("OUT_G", config.out_g);
 772         output.tag.set_property("OUT_B", config.out_b);
 773         output.tag.set_property("OUT_A", config.out_a);
 774         output.tag.set_property("SHAPE", config.shape);
 775         output.tag.set_property("RATE", config.rate);
 776         output.tag.set_property("CENTER_X", config.center_x);
 777         output.tag.set_property("CENTER_Y", config.center_y);
 778         output.append_tag();
 779         output.tag.set_title("/GRADIENT");
 780         output.append_tag();
 781         output.append_newline();
 782         output.terminate_string();
 783 }
 784
 785 void GradientMain::read_data(KeyFrame *keyframe)
 786 {
 787         FileXML input;
 788
 789         input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
 790
 791         int result = 0;
 792
 793         while(!result)
 794         {
 795                 result = input.read_tag();
 796
 797                 if(!result)
 798                 {
 799                         if(input.tag.title_is("GRADIENT"))
 800                         {
 801                                 config.angle = input.tag.get_property("ANGLE", config.angle);
 802                                 config.rate = input.tag.get_property("RATE", config.rate);
 803                                 config.in_radius = input.tag.get_property("IN_RADIUS", config.in_radius);
 804                                 config.out_radius = input.tag.get_property("OUT_RADIUS", config.out_radius);
 805                                 config.in_r = input.tag.get_property("IN_R", config.in_r);
 806                                 config.in_g = input.tag.get_property("IN_G", config.in_g);
 807                                 config.in_b = input.tag.get_property("IN_B", config.in_b);
 808                                 config.in_a = input.tag.get_property("IN_A", config.in_a);
 809                                 config.out_r = input.tag.get_property("OUT_R", config.out_r);
 810                                 config.out_g = input.tag.get_property("OUT_G", config.out_g);
 811                                 config.out_b = input.tag.get_property("OUT_B", config.out_b);
 812                                 config.out_a = input.tag.get_property("OUT_A", config.out_a);
 813                                 config.shape = input.tag.get_property("SHAPE", config.shape);
 814                                 config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 815                                 config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 816                         }
 817                 }
 818         }
 819 }
 820
 821 int GradientMain::handle_opengl()
 822 {
 823 #ifdef HAVE_GL
 824         const char *head_frag =
 825                 "uniform sampler2D tex;\n"
 826                 "uniform float half_w;\n"
 827                 "uniform float half_h;\n"
 828                 "uniform float center_x;\n"
 829                 "uniform float center_y;\n"
 830                 "uniform float half_gradient_size;\n"
 831                 "uniform float sin_angle;\n"
 832                 "uniform float cos_angle;\n"
 833                 "uniform vec4 out_color;\n"
 834                 "uniform vec4 in_color;\n"
 835                 "uniform float in_radius;\n"
 836                 "uniform float out_radius;\n"
 837                 "uniform float radius_diff;\n"
 838                 "\n"
 839                 "void main()\n"
 840                 "{\n"
 841                 "       vec2 out_coord = gl_TexCoord[0].st;\n";
 842
 843         const char *linear_shape =
 844                 "       vec2 in_coord = vec2(out_coord.x - half_w, half_h - out_coord.y);\n"
 845                 "       float mag = half_gradient_size - \n"
 846                 "               (in_coord.x * sin_angle + in_coord.y * cos_angle);\n";
 847
 848         const char *radial_shape =
 849                 "       vec2 in_coord = vec2(out_coord.x - center_x, out_coord.y - center_y);\n"
 850                 "       float mag = length(vec2(in_coord.x, in_coord.y));\n";
 851
 852 // No clamp function in NVidia
 853         const char *linear_rate =
 854                 "       mag = min(max(mag, in_radius), out_radius);\n"
 855                 "       float opacity = (mag - in_radius) / radius_diff;\n";
 856
 857 // NVidia warns about exp, but exp is in the GLSL spec.
 858         const char *log_rate =
 859                 "       mag = max(mag, in_radius);\n"
 860                 "       float opacity = 1.0 - \n"
 861                 "               exp(1.0 * -(mag - in_radius) / radius_diff);\n";
 862
 863         const char *square_rate =
 864                 "       mag = min(max(mag, in_radius), out_radius);\n"
 865                 "       float opacity = pow((mag - in_radius) / radius_diff, 2.0);\n"
 866                 "       opacity = min(opacity, 1.0);\n";
 867
 868         const char *tail_frag =
 869                 "       vec4 color = mix(in_color, out_color, opacity);\n"
 870                 "       vec4 bg_color = texture2D(tex, out_coord);\n"
 871                 "       gl_FragColor.rgb = mix(bg_color.rgb, color.rgb, color.a);\n"
 872                 "       gl_FragColor.a = max(bg_color.a, color.a);\n"
 873                 "}\n";
 874
 875
 876         const char *shader_stack[5] = { 0, 0, 0, 0, 0 };
 877         shader_stack[0] = head_frag;
 878
 879         switch(config.shape)
 880         {
 881                 case GradientConfig::LINEAR:
 882                         shader_stack[1] = linear_shape;
 883                         break;
 884
 885                 default:
 886                         shader_stack[1] = radial_shape;
 887                         break;
 888         }
 889
 890         switch(config.rate)
 891         {
 892                 case GradientConfig::LINEAR:
 893                         shader_stack[2] = linear_rate;
 894                         break;
 895                 case GradientConfig::LOG:
 896                         shader_stack[2] = log_rate;
 897                         break;
 898                 case GradientConfig::SQUARE:
 899                         shader_stack[2] = square_rate;
 900                         break;
 901         }
 902
 903         shader_stack[3] = tail_frag;
 904 // Force frame to create texture without copying to it if full alpha.
 905         if(config.in_a >= 0xff &&
 906                 config.out_a >= 0xff)
 907                 get_output()->set_opengl_state(VFrame::TEXTURE);
 908         get_output()->to_texture();
 909         get_output()->enable_opengl();
 910         get_output()->init_screen();
 911         get_output()->bind_texture(0);
 912
 913         unsigned int frag = VFrame::make_shader(0,
 914                 shader_stack[0],
 915                 shader_stack[1],
 916                 shader_stack[2],
 917                 shader_stack[3],
 918                 0);
 919
 920         if(frag)
 921         {
 922                 glUseProgram(frag);
 923                 float w = get_output()->get_w();
 924                 float h = get_output()->get_h();
 925                 float texture_w = get_output()->get_texture_w();
 926                 float texture_h = get_output()->get_texture_h();
 927                 glUniform1i(glGetUniformLocation(frag, "tex"), 0);
 928                 glUniform1f(glGetUniformLocation(frag, "half_w"), w / 2 / texture_w);
 929                 glUniform1f(glGetUniformLocation(frag, "half_h"), h / 2 / texture_h);
 930                 if(config.shape == GradientConfig::LINEAR)
 931                 {
 932                         glUniform1f(glGetUniformLocation(frag, "center_x"),
 933                                 w / 2 / texture_w);
 934                         glUniform1f(glGetUniformLocation(frag, "center_y"),
 935                                 h / 2 / texture_h);
 936                 }
 937                 else
 938                 {
 939                         glUniform1f(glGetUniformLocation(frag, "center_x"),
 940                                 (float)config.center_x * w / 100 / texture_w);
 941                         glUniform1f(glGetUniformLocation(frag, "center_y"),
 942                                 (float)config.center_y * h / 100 / texture_h);
 943                 }
 944                 float gradient_size = hypotf(w / texture_w, h / texture_h);
 945                 glUniform1f(glGetUniformLocation(frag, "half_gradient_size"),
 946                         gradient_size / 2);
 947                 glUniform1f(glGetUniformLocation(frag, "sin_angle"),
 948                         sin(config.angle * (M_PI / 180)));
 949                 glUniform1f(glGetUniformLocation(frag, "cos_angle"),
 950                         cos(config.angle * (M_PI / 180)));
 951                 float in_radius = (float)config.in_radius / 100 * gradient_size;
 952                 glUniform1f(glGetUniformLocation(frag, "in_radius"), in_radius);
 953                 float out_radius = (float)config.out_radius / 100 * gradient_size;
 954                 glUniform1f(glGetUniformLocation(frag, "out_radius"), out_radius);
 955                 glUniform1f(glGetUniformLocation(frag, "radius_diff"),
 956                         out_radius - in_radius);
 957
 958                 switch(get_output()->get_color_model())
 959                 {
 960                         case BC_YUV888:
 961                         case BC_YUVA8888:
 962                         {
 963                                 float in1, in2, in3, in4;
 964                                 float out1, out2, out3, out4;
 965                                 YUV::rgb_to_yuv_f((float)config.in_r / 0xff,
 966                                         (float)config.in_g / 0xff,
 967                                         (float)config.in_b / 0xff,
 968                                         in1,
 969                                         in2,
 970                                         in3);
 971                                 in4 = (float)config.in_a / 0xff;
 972                                 YUV::rgb_to_yuv_f((float)config.out_r / 0xff,
 973                                         (float)config.out_g / 0xff,
 974                                         (float)config.out_b / 0xff,
 975                                         out1,
 976                                         out2,
 977                                         out3);
 978                                 in2 += 0.5;
 979                                 in3 += 0.5;
 980                                 out2 += 0.5;
 981                                 out3 += 0.5;
 982                                 out4 = (float)config.out_a / 0xff;
 983                                 glUniform4f(glGetUniformLocation(frag, "out_color"),
 984                                         out1, out2, out3, out4);
 985                                 glUniform4f(glGetUniformLocation(frag, "in_color"),
 986                                         in1, in2, in3, in4);
 987                                 break;
 988                         }
 989
 990                         default:
 991                                 glUniform4f(glGetUniformLocation(frag, "out_color"),
 992                                         (float)config.out_r / 0xff,
 993                                         (float)config.out_g / 0xff,
 994                                         (float)config.out_b / 0xff,
 995                                         (float)config.out_a / 0xff);
 996                                 glUniform4f(glGetUniformLocation(frag, "in_color"),
 997                                         (float)config.in_r / 0xff,
 998                                         (float)config.in_g / 0xff,
 999                                         (float)config.in_b / 0xff,
1000                                         (float)config.in_a / 0xff);
1001                                 break;
1002                 }
1003         }
1004
1005         get_output()->draw_texture();
1006         glUseProgram(0);
1007         get_output()->set_opengl_state(VFrame::SCREEN);
1008
1009 #endif
1010         return 0;
1011 }
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023 GradientPackage::GradientPackage()
1024  : LoadPackage()
1025 {
1026 }
1027
1028
1029
1030
1031 GradientUnit::GradientUnit(GradientServer *server, GradientMain *plugin)
1032  : LoadClient(server)
1033 {
1034         this->plugin = plugin;
1035         this->server = server;
1036 }
1037
1038
1039
1040
1041 static float calculate_opacity(float mag,
1042         float in_radius, float out_radius, int rate)
1043 {
1044         float opacity = 0.0;
1045         switch(rate)
1046         {
1047                 case GradientConfig::LINEAR:
1048                         if(mag < in_radius)
1049                                 opacity = 0.0;
1050                         else
1051                         if(mag >= out_radius)
1052                                 opacity = 1.0;
1053                         else
1054                                 opacity = (float)(mag - in_radius) / (out_radius - in_radius);
1055                         break;
1056
1057                 case GradientConfig::LOG:
1058                         if(mag < in_radius)
1059                                 opacity = 0;
1060                         else
1061 // Let this one decay beyond out_radius
1062                                 opacity = 1 - exp(1.0 * -(float)(mag - in_radius) /
1063                                         (out_radius - in_radius));
1064                         break;
1065
1066                 case GradientConfig::SQUARE:
1067                         if(mag < in_radius)
1068                                 opacity = 0.0;
1069                         else
1070                         if(mag >= out_radius)
1071                                 opacity = 1.0;
1072                         else
1073                                 opacity = powf((float)(mag - in_radius) /
1074                                         (out_radius - in_radius), 2.0);
1075                         break;
1076         }
1077         CLAMP(opacity, 0.0, 1.0);
1078         return opacity;
1079 }
1080
1081 #define CREATE_GRADIENT(type, temp, components, max) \
1082 { \
1083 /* Synthesize linear gradient for lookups */ \
1084  \
1085         r_table = malloc(sizeof(type) * gradient_size); \
1086         g_table = malloc(sizeof(type) * gradient_size); \
1087         b_table = malloc(sizeof(type) * gradient_size); \
1088         a_table = malloc(sizeof(type) * gradient_size); \
1089  \
1090         for(int i = 0; i < gradient_size; i++) \
1091         { \
1092                 float opacity = calculate_opacity(i, in_radius, out_radius, plugin->config.rate); \
1093                 float transparency; \
1094  \
1095                 transparency = 1.0 - opacity; \
1096                 ((type*)r_table)[i] = (type)(out1 * opacity + in1 * transparency); \
1097                 ((type*)g_table)[i] = (type)(out2 * opacity + in2 * transparency); \
1098                 ((type*)b_table)[i] = (type)(out3 * opacity + in3 * transparency); \
1099                 ((type*)a_table)[i] = (type)(out4 * opacity + in4 * transparency); \
1100         } \
1101  \
1102         for(int i = pkg->y1; i < pkg->y2; i++) \
1103         { \
1104                 type *gradient_row = (type*)plugin->gradient->get_rows()[i]; \
1105                 type *out_row = (type*)plugin->get_output()->get_rows()[i]; \
1106  \
1107                 switch(plugin->config.shape) \
1108                 { \
1109                         case GradientConfig::LINEAR: \
1110                                 for(int j = 0; j < w; j++) \
1111                                 { \
1112                                         int x = j - half_w; \
1113                                         int y = -(i - half_h); \
1114                  \
1115 /* Rotate by effect angle */ \
1116                                         int mag = (int)(gradient_size / 2 - \
1117                                                 (x * sin_angle + y * cos_angle) + \
1118                                                 0.5); \
1119                  \
1120 /* Get gradient value from these coords */ \
1121                  \
1122                                         if(sizeof(type) == 4) \
1123                                         { \
1124                                                 float opacity = calculate_opacity(mag,  \
1125                                                         in_radius,  \
1126                                                         out_radius, \
1127                                                         plugin->config.rate); \
1128                                                 float transparency = 1.0 - opacity; \
1129                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1130                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1131                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1132                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1133                                         } \
1134                                         else \
1135                                         if(mag < 0) \
1136                                         { \
1137                                                 gradient_row[0] = out1; \
1138                                                 gradient_row[1] = out2; \
1139                                                 gradient_row[2] = out3; \
1140                                                 if(components == 4) gradient_row[3] = out4; \
1141                                         } \
1142                                         else \
1143                                         if(mag >= gradient_size) \
1144                                         { \
1145                                                 gradient_row[0] = in1; \
1146                                                 gradient_row[1] = in2; \
1147                                                 gradient_row[2] = in3; \
1148                                                 if(components == 4) gradient_row[3] = in4; \
1149                                         } \
1150                                         else \
1151                                         { \
1152                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1153                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1154                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1155                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1156                                         } \
1157  \
1158 /* Overlay mixed colormodels onto output */ \
1159                                         if(gradient_cmodel != output_cmodel) \
1160                                         { \
1161                                                 temp opacity = gradient_row[3]; \
1162                                                 temp transparency = max - opacity; \
1163                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1164                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1165                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1166                                                 out_row += 3; \
1167                                         } \
1168  \
1169                                         gradient_row += components; \
1170                                 } \
1171                                 break; \
1172  \
1173                         case GradientConfig::RADIAL: \
1174                                 for(int j = 0; j < w; j++) \
1175                                 { \
1176                                         double x = j - center_x; \
1177                                         double y = i - center_y; \
1178                                         double magnitude = hypot(x, y); \
1179                                         int mag = (int)magnitude; \
1180                                         if(sizeof(type) == 4) \
1181                                         { \
1182                                                 float opacity = calculate_opacity(mag,  \
1183                                                         in_radius,  \
1184                                                         out_radius, \
1185                                                         plugin->config.rate); \
1186                                                 float transparency = 1.0 - opacity; \
1187                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1188                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1189                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1190                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1191                                         } \
1192                                         else \
1193                                         { \
1194                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1195                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1196                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1197                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1198                                         } \
1199  \
1200 /* Overlay mixed colormodels onto output */ \
1201                                         if(gradient_cmodel != output_cmodel) \
1202                                         { \
1203                                                 temp opacity = gradient_row[3]; \
1204                                                 temp transparency = max - opacity; \
1205                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1206                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1207                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1208                                                 out_row += 3; \
1209                                         } \
1210  \
1211                                         gradient_row += components; \
1212                                 } \
1213                                 break; \
1214                 } \
1215         } \
1216 }
1217
1218 void GradientUnit::process_package(LoadPackage *package)
1219 {
1220         GradientPackage *pkg = (GradientPackage*)package;
1221         int h = plugin->input->get_h();
1222         int w = plugin->input->get_w();
1223         int half_w = w / 2;
1224         int half_h = h / 2;
1225         int gradient_size = (int)(ceil(hypot(w, h)));
1226         int in_radius = (int)(plugin->config.in_radius / 100 * gradient_size);
1227         int out_radius = (int)(plugin->config.out_radius / 100 * gradient_size);
1228         double sin_angle = sin(plugin->config.angle * (M_PI / 180));
1229         double cos_angle = cos(plugin->config.angle * (M_PI / 180));
1230         double center_x = plugin->config.center_x * w / 100;
1231         double center_y = plugin->config.center_y * h / 100;
1232         void *r_table = 0;
1233         void *g_table = 0;
1234         void *b_table = 0;
1235         void *a_table = 0;
1236         int gradient_cmodel = plugin->gradient->get_color_model();
1237         int output_cmodel = plugin->get_output()->get_color_model();
1238
1239         if(in_radius > out_radius)
1240         {
1241             in_radius ^= out_radius;
1242             out_radius ^= in_radius;
1243             in_radius ^= out_radius;
1244         }
1245
1246
1247         switch(gradient_cmodel)
1248         {
1249                 case BC_RGB888:
1250                 {
1251                         int in1 = plugin->config.in_r;
1252                         int in2 = plugin->config.in_g;
1253                         int in3 = plugin->config.in_b;
1254                         int in4 = plugin->config.in_a;
1255                         int out1 = plugin->config.out_r;
1256                         int out2 = plugin->config.out_g;
1257                         int out3 = plugin->config.out_b;
1258                         int out4 = plugin->config.out_a;
1259                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1260                         break;
1261                 }
1262
1263                 case BC_RGBA8888:
1264                 {
1265                         int in1 = plugin->config.in_r;
1266                         int in2 = plugin->config.in_g;
1267                         int in3 = plugin->config.in_b;
1268                         int in4 = plugin->config.in_a;
1269                         int out1 = plugin->config.out_r;
1270                         int out2 = plugin->config.out_g;
1271                         int out3 = plugin->config.out_b;
1272                         int out4 = plugin->config.out_a;
1273                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1274                         break;
1275                 }
1276
1277                 case BC_RGB_FLOAT:
1278                 {
1279                         float in1 = (float)plugin->config.in_r / 0xff;
1280                         float in2 = (float)plugin->config.in_g / 0xff;
1281                         float in3 = (float)plugin->config.in_b / 0xff;
1282                         float in4 = (float)plugin->config.in_a / 0xff;
1283                         float out1 = (float)plugin->config.out_r / 0xff;
1284                         float out2 = (float)plugin->config.out_g / 0xff;
1285                         float out3 = (float)plugin->config.out_b / 0xff;
1286                         float out4 = (float)plugin->config.out_a / 0xff;
1287                         CREATE_GRADIENT(float, float, 3, 1.0)
1288                         break;
1289                 }
1290
1291                 case BC_RGBA_FLOAT:
1292                 {
1293                         float in1 = (float)plugin->config.in_r / 0xff;
1294                         float in2 = (float)plugin->config.in_g / 0xff;
1295                         float in3 = (float)plugin->config.in_b / 0xff;
1296                         float in4 = (float)plugin->config.in_a / 0xff;
1297                         float out1 = (float)plugin->config.out_r / 0xff;
1298                         float out2 = (float)plugin->config.out_g / 0xff;
1299                         float out3 = (float)plugin->config.out_b / 0xff;
1300                         float out4 = (float)plugin->config.out_a / 0xff;
1301                         CREATE_GRADIENT(float, float, 4, 1.0)
1302                         break;
1303                 }
1304
1305                 case BC_YUV888:
1306                 {
1307                         int in1, in2, in3, in4;
1308                         int out1, out2, out3, out4;
1309                         yuv.rgb_to_yuv_8(plugin->config.in_r,
1310                                 plugin->config.in_g,
1311                                 plugin->config.in_b,
1312                                 in1,
1313                                 in2,
1314                                 in3);
1315                         in4 = plugin->config.in_a;
1316                         yuv.rgb_to_yuv_8(plugin->config.out_r,
1317                                 plugin->config.out_g,
1318                                 plugin->config.out_b,
1319                                 out1,
1320                                 out2,
1321                                 out3);
1322                         out4 = plugin->config.out_a;
1323                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1324                         break;
1325                 }
1326
1327                 case BC_YUVA8888:
1328                 {
1329                         int in1, in2, in3, in4;
1330                         int out1, out2, out3, out4;
1331                         yuv.rgb_to_yuv_8(plugin->config.in_r,
1332                                 plugin->config.in_g,
1333                                 plugin->config.in_b,
1334                                 in1,
1335                                 in2,
1336                                 in3);
1337                         in4 = plugin->config.in_a;
1338                         yuv.rgb_to_yuv_8(plugin->config.out_r,
1339                                 plugin->config.out_g,
1340                                 plugin->config.out_b,
1341                                 out1,
1342                                 out2,
1343                                 out3);
1344                         out4 = plugin->config.out_a;
1345                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1346                         break;
1347                 }
1348         }
1349
1350         if(r_table) free(r_table);
1351         if(g_table) free(g_table);
1352         if(b_table) free(b_table);
1353         if(a_table) free(a_table);
1354 }
1355
1356
1357
1358
1359
1360
1361 GradientServer::GradientServer(GradientMain *plugin,
1362         int total_clients,
1363         int total_packages)
1364  : LoadServer(total_clients, total_packages)
1365 {
1366         this->plugin = plugin;
1367 }
1368
1369 void GradientServer::init_packages()
1370 {
1371         for(int i = 0; i < get_total_packages(); i++)
1372         {
1373                 GradientPackage *package = (GradientPackage*)get_package(i);
1374                 package->y1 = plugin->input->get_h() *
1375                         i /
1376                         get_total_packages();
1377                 package->y2 = plugin->input->get_h() *
1378                         (i + 1) /
1379                         get_total_packages();
1380         }
1381 }
1382
1383 LoadClient* GradientServer::new_client()
1384 {
1385         return new GradientUnit(this, plugin);
1386 }
1387
1388 LoadPackage* GradientServer::new_package()
1389 {
1390         return new GradientPackage;
1391 }
1392
1393
1394
1395
1396