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 "bccolors.h"
  27 #include "bcdisplayinfo.h"
  28 #include "clip.h"
  29 #include "bchash.h"
  30 #include "filexml.h"
  31 #include "gradient.h"
  32 #include "keyframe.h"
  33 #include "language.h"
  34 #include "overlayframe.h"
  35 #include "theme.h"
  36 #include "vframe.h"
  37
  38
  39
  40
  41 REGISTER_PLUGIN(GradientMain)
  42
  43
  44
  45
  46
  47
  48 GradientConfig::GradientConfig()
  49 {
  50         reset();
  51 }
  52
  53 void GradientConfig::reset()
  54
  55 {
  56         angle = 0;
  57         in_radius = 0;
  58         out_radius = 100;
  59         in_r = 0xff;
  60         in_g = 0xff;
  61         in_b = 0xff;
  62         in_a = 0xff;
  63         out_r = 0x0;
  64         out_g = 0x0;
  65         out_b = 0x0;
  66         out_a = 0x0;
  67         shape = GradientConfig::LINEAR;
  68         rate = GradientConfig::LINEAR;
  69         center_x = 50;
  70         center_y = 50;
  71 }
  72
  73 int GradientConfig::equivalent(GradientConfig &that)
  74 {
  75         return (EQUIV(angle, that.angle) &&
  76                 EQUIV(in_radius, that.in_radius) &&
  77                 EQUIV(out_radius, that.out_radius) &&
  78                 in_r == that.in_r &&
  79                 in_g == that.in_g &&
  80                 in_b == that.in_b &&
  81                 in_a == that.in_a &&
  82                 out_r == that.out_r &&
  83                 out_g == that.out_g &&
  84                 out_b == that.out_b &&
  85                 out_a == that.out_a &&
  86                 shape == that.shape &&
  87                 rate == that.rate &&
  88                 EQUIV(center_x, that.center_x) &&
  89                 EQUIV(center_y, that.center_y));
  90 }
  91
  92 void GradientConfig::copy_from(GradientConfig &that)
  93 {
  94         angle = that.angle;
  95         in_radius = that.in_radius;
  96         out_radius = that.out_radius;
  97         in_r = that.in_r;
  98         in_g = that.in_g;
  99         in_b = that.in_b;
 100         in_a = that.in_a;
 101         out_r = that.out_r;
 102         out_g = that.out_g;
 103         out_b = that.out_b;
 104         out_a = that.out_a;
 105         shape = that.shape;
 106         rate = that.rate;
 107         center_x = that.center_x;
 108         center_y = that.center_y;
 109 }
 110
 111 void GradientConfig::interpolate(GradientConfig &prev,
 112         GradientConfig &next,
 113         long prev_frame,
 114         long next_frame,
 115         long current_frame)
 116 {
 117         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 118         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 119
 120
 121         this->angle = (int)(prev.angle * prev_scale + next.angle * next_scale);
 122         this->in_radius = (int)(prev.in_radius * prev_scale + next.in_radius * next_scale);
 123         this->out_radius = (int)(prev.out_radius * prev_scale + next.out_radius * next_scale);
 124         in_r = (int)(prev.in_r * prev_scale + next.in_r * next_scale);
 125         in_g = (int)(prev.in_g * prev_scale + next.in_g * next_scale);
 126         in_b = (int)(prev.in_b * prev_scale + next.in_b * next_scale);
 127         in_a = (int)(prev.in_a * prev_scale + next.in_a * next_scale);
 128         out_r = (int)(prev.out_r * prev_scale + next.out_r * next_scale);
 129         out_g = (int)(prev.out_g * prev_scale + next.out_g * next_scale);
 130         out_b = (int)(prev.out_b * prev_scale + next.out_b * next_scale);
 131         out_a = (int)(prev.out_a * prev_scale + next.out_a * next_scale);
 132         shape = prev.shape;
 133         rate = prev.rate;
 134         center_x = prev.center_x * prev_scale + next.center_x * next_scale;
 135         center_y = prev.center_y * prev_scale + next.center_y * next_scale;
 136 }
 137
 138 int GradientConfig::get_in_color()
 139 {
 140         int result = (in_r << 16) | (in_g << 8) | (in_b);
 141         return result;
 142 }
 143
 144 int GradientConfig::get_out_color()
 145 {
 146         int result = (out_r << 16) | (out_g << 8) | (out_b);
 147         return result;
 148 }
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160 #define COLOR_W 100
 161 #define COLOR_H 30
 162
 163 GradientWindow::GradientWindow(GradientMain *plugin)
 164  : PluginClientWindow(plugin,
 165         350,
 166         290,
 167         350,
 168         290,
 169         0)
 170 {
 171         this->plugin = plugin;
 172         angle = 0;
 173         angle_title = 0;
 174         center_x = 0;
 175         center_y = 0;
 176         center_x_title = 0;
 177         center_y_title = 0;
 178 }
 179
 180 GradientWindow::~GradientWindow()
 181 {
 182         delete in_color_thread;
 183         delete out_color_thread;
 184 }
 185
 186 void GradientWindow::create_objects()
 187 {
 188         int margin = plugin->get_theme()->widget_border;
 189         int x = 10, y = 10;
 190         BC_Title *title;
 191
 192         add_subwindow(title = new BC_Title(x, y, _("Shape:")));
 193         add_subwindow(shape = new GradientShape(plugin,
 194                 this,
 195                 x + title->get_w() + margin,
 196                 y));
 197         shape->create_objects();
 198         y += shape->get_h() + margin;
 199         shape_x = x;
 200         shape_y = y;
 201         y += BC_Pot::calculate_h() + margin;
 202
 203         add_subwindow(title = new BC_Title(x, y, _("Rate:")));
 204         add_subwindow(rate = new GradientRate(plugin,
 205                 x + title->get_w() + margin,
 206                 y));
 207         rate->create_objects();
 208         y += rate->get_h() + margin;
 209
 210         int x1 = x;
 211         int y1 = y;
 212
 213         BC_Title *title1;
 214         add_subwindow(title1 = new BC_Title(x, y, _("Inner radius:")));
 215
 216         y += BC_Slider::get_span(0) + margin;
 217
 218         BC_Title *title2;
 219         add_subwindow(title2 = new BC_Title(x, y, _("Outer radius:")));
 220
 221         add_subwindow(reset = new GradientReset(plugin, this, x, y+100));
 222
 223         y = y1;
 224         x += MAX(title1->get_w(), title2->get_w()) + margin;
 225
 226         add_subwindow(in_radius = new GradientInRadius(plugin, x, y));
 227         y += in_radius->get_h() + margin;
 228
 229         add_subwindow(out_radius = new GradientOutRadius(plugin, x, y));
 230         y += out_radius->get_h() + margin;
 231
 232         x = x1;
 233         y1 = y;
 234         add_subwindow(in_color = new GradientInColorButton(plugin, this, x, y));
 235         y += COLOR_H + margin;
 236
 237         add_subwindow(out_color = new GradientOutColorButton(plugin, this, x, y));
 238         x += MAX(in_color->get_w(), out_color->get_w()) + margin;
 239         y = y1;
 240
 241         in_color_x = x;
 242         in_color_y = y;
 243         y += COLOR_H + margin;
 244         out_color_x = x;
 245         out_color_y = y;
 246         in_color_thread = new GradientInColorThread(plugin, this);
 247         out_color_thread = new GradientOutColorThread(plugin, this);
 248         update_in_color();
 249         update_out_color();
 250         update_shape();
 251
 252         draw_3d_border(in_color_x - 2,
 253                 in_color_y - 2,
 254                 COLOR_W + 4,
 255                 COLOR_H + 4,
 256                 1);
 257
 258         draw_3d_border(out_color_x - 2,
 259                 out_color_y - 2,
 260                 COLOR_W + 4,
 261                 COLOR_H + 4,
 262                 1);
 263
 264
 265         show_window();
 266 }
 267
 268 void GradientWindow::update_shape()
 269 {
 270         int x = shape_x, y = shape_y;
 271
 272         if(plugin->config.shape == GradientConfig::LINEAR)
 273         {
 274                 delete center_x_title;
 275                 delete center_y_title;
 276                 delete center_x;
 277                 delete center_y;
 278                 center_x_title = 0;
 279                 center_y_title = 0;
 280                 center_x = 0;
 281                 center_y = 0;
 282
 283                 if(!angle)
 284                 {
 285                         add_subwindow(angle_title = new BC_Title(x, y, _("Angle:")));
 286                         add_subwindow(angle = new GradientAngle(plugin, x + angle_title->get_w() + 10, y));
 287                 }
 288         }
 289         else
 290         {
 291                 delete angle_title;
 292                 delete angle;
 293                 angle_title = 0;
 294                 angle = 0;
 295                 if(!center_x)
 296                 {
 297                         add_subwindow(center_x_title = new BC_Title(x, y, _("Center X:")));
 298                         add_subwindow(center_x = new GradientCenterX(plugin,
 299                                 x + center_x_title->get_w() + 10,
 300                                 y));
 301                         x += center_x_title->get_w() + 10 + center_x->get_w() + 10;
 302                         add_subwindow(center_y_title = new BC_Title(x, y, _("Center Y:")));
 303                         add_subwindow(center_y = new GradientCenterY(plugin,
 304                                 x + center_y_title->get_w() + 10,
 305                                 y));
 306                 }
 307         }
 308         show_window();
 309 }
 310
 311
 312
 313
 314 void GradientWindow::update_in_color()
 315 {
 316 //printf("GradientWindow::update_in_color 1 %08x\n", plugin->config.get_in_color());
 317         set_color(plugin->config.get_in_color());
 318         draw_box(in_color_x, in_color_y, COLOR_W, COLOR_H);
 319         flash(in_color_x, in_color_y, COLOR_W, COLOR_H);
 320 }
 321
 322 void GradientWindow::update_out_color()
 323 {
 324 //printf("GradientWindow::update_out_color 1 %08x\n", plugin->config.get_in_color());
 325         set_color(plugin->config.get_out_color());
 326         draw_box(out_color_x, out_color_y, COLOR_W, COLOR_H);
 327         flash(out_color_x, out_color_y, COLOR_W, COLOR_H);
 328 }
 329
 330 void GradientWindow::done_event(int result)
 331 {
 332         in_color_thread->close_window();
 333         out_color_thread->close_window();
 334 }
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344 GradientShape::GradientShape(GradientMain *plugin,
 345         GradientWindow *gui,
 346         int x,
 347         int y)
 348  : BC_PopupMenu(x, y, 100, to_text(plugin->config.shape), 1)
 349 {
 350         this->plugin = plugin;
 351         this->gui = gui;
 352 }
 353 void GradientShape::create_objects()
 354 {
 355         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 356         add_item(new BC_MenuItem(to_text(GradientConfig::RADIAL)));
 357 }
 358 char* GradientShape::to_text(int shape)
 359 {
 360         switch(shape)
 361         {
 362                 case GradientConfig::LINEAR:
 363                         return _("Linear");
 364                 default:
 365                         return _("Radial");
 366         }
 367 }
 368 int GradientShape::from_text(char *text)
 369 {
 370         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 371                 return GradientConfig::LINEAR;
 372         return GradientConfig::RADIAL;
 373 }
 374 int GradientShape::handle_event()
 375 {
 376         plugin->config.shape = from_text(get_text());
 377         gui->update_shape();
 378         plugin->send_configure_change();
 379         return 1;
 380 }
 381
 382
 383
 384
 385 GradientCenterX::GradientCenterX(GradientMain *plugin, int x, int y)
 386  : BC_FPot(x, y, plugin->config.center_x, 0, 100)
 387 {
 388         this->plugin = plugin;
 389 }
 390 int GradientCenterX::handle_event()
 391 {
 392         plugin->config.center_x = get_value();
 393         plugin->send_configure_change();
 394         return 1;
 395 }
 396
 397
 398
 399 GradientCenterY::GradientCenterY(GradientMain *plugin, int x, int y)
 400  : BC_FPot(x, y, plugin->config.center_y, 0, 100)
 401 {
 402         this->plugin = plugin;
 403 }
 404
 405 int GradientCenterY::handle_event()
 406 {
 407         plugin->config.center_y = get_value();
 408         plugin->send_configure_change();
 409         return 1;
 410 }
 411
 412
 413
 414
 415 GradientAngle::GradientAngle(GradientMain *plugin, int x, int y)
 416  : BC_FPot(x,
 417         y,
 418         plugin->config.angle,
 419         -180,
 420         180)
 421 {
 422         this->plugin = plugin;
 423 }
 424
 425 int GradientAngle::handle_event()
 426 {
 427         plugin->config.angle = get_value();
 428         plugin->send_configure_change();
 429         return 1;
 430 }
 431
 432
 433 GradientRate::GradientRate(GradientMain *plugin, int x, int y)
 434  : BC_PopupMenu(x,
 435         y,
 436         100,
 437         to_text(plugin->config.rate),
 438         1)
 439 {
 440         this->plugin = plugin;
 441 }
 442 void GradientRate::create_objects()
 443 {
 444         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 445         add_item(new BC_MenuItem(to_text(GradientConfig::LOG)));
 446         add_item(new BC_MenuItem(to_text(GradientConfig::SQUARE)));
 447 }
 448 char* GradientRate::to_text(int shape)
 449 {
 450         switch(shape)
 451         {
 452                 case GradientConfig::LINEAR:
 453                         return _("Linear");
 454                 case GradientConfig::LOG:
 455                         return _("Log");
 456                 default:
 457                         return _("Square");
 458         }
 459 }
 460 int GradientRate::from_text(char *text)
 461 {
 462         if(!strcmp(text, to_text(GradientConfig::LINEAR)))
 463                 return GradientConfig::LINEAR;
 464         if(!strcmp(text, to_text(GradientConfig::LOG)))
 465                 return GradientConfig::LOG;
 466         return GradientConfig::SQUARE;
 467 }
 468 int GradientRate::handle_event()
 469 {
 470         plugin->config.rate = from_text(get_text());
 471         plugin->send_configure_change();
 472         return 1;
 473 }
 474
 475
 476
 477 GradientInRadius::GradientInRadius(GradientMain *plugin, int x, int y)
 478  : BC_FSlider(x,
 479         y,
 480         0,
 481         200,
 482         200,
 483         (float)0,
 484         (float)100,
 485         (float)plugin->config.in_radius)
 486 {
 487         this->plugin = plugin;
 488 }
 489
 490 int GradientInRadius::handle_event()
 491 {
 492         plugin->config.in_radius = get_value();
 493         plugin->send_configure_change();
 494         return 1;
 495 }
 496
 497
 498 GradientOutRadius::GradientOutRadius(GradientMain *plugin, int x, int y)
 499  : BC_FSlider(x,
 500         y,
 501         0,
 502         200,
 503         200,
 504         (float)0,
 505         (float)100,
 506         (float)plugin->config.out_radius)
 507 {
 508         this->plugin = plugin;
 509 }
 510
 511 int GradientOutRadius::handle_event()
 512 {
 513         plugin->config.out_radius = get_value();
 514         plugin->send_configure_change();
 515         return 1;
 516 }
 517
 518 GradientInColorButton::GradientInColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 519  : BC_GenericButton(x, y, _("Inner color:"))
 520 {
 521         this->plugin = plugin;
 522         this->window = window;
 523 }
 524
 525 int GradientInColorButton::handle_event()
 526 {
 527         window->in_color_thread->start_window(
 528                 plugin->config.get_in_color(),
 529                 plugin->config.in_a);
 530         return 1;
 531 }
 532
 533
 534 GradientOutColorButton::GradientOutColorButton(GradientMain *plugin, GradientWindow *window, int x, int y)
 535  : BC_GenericButton(x, y, _("Outer color:"))
 536 {
 537         this->plugin = plugin;
 538         this->window = window;
 539 }
 540
 541 int GradientOutColorButton::handle_event()
 542 {
 543         window->out_color_thread->start_window(
 544                 plugin->config.get_out_color(),
 545                 plugin->config.out_a);
 546         return 1;
 547 }
 548
 549 GradientReset::GradientReset(GradientMain *plugin, GradientWindow *window, int x, int y)
 550  : BC_GenericButton(x, y, _("Reset"))
 551 {
 552         this->plugin = plugin;
 553         this->window = window;
 554 }
 555
 556 int GradientReset::handle_event()
 557 {
 558         plugin->config.reset();
 559         window->update_gui();
 560         plugin->send_configure_change();
 561         return 1;
 562 }
 563
 564 GradientInColorThread::GradientInColorThread(GradientMain *plugin,
 565         GradientWindow *window)
 566  : ColorPicker(1, _("Inner color"))
 567 {
 568         this->plugin = plugin;
 569         this->window = window;
 570 }
 571
 572 int GradientInColorThread::handle_new_color(int output, int alpha)
 573 {
 574         plugin->config.in_r = (output & 0xff0000) >> 16;
 575         plugin->config.in_g = (output & 0xff00) >> 8;
 576         plugin->config.in_b = (output & 0xff);
 577         plugin->config.in_a = alpha;
 578
 579         window->lock_window("GradientInColorThread::handle_new_color");
 580         window->update_in_color();
 581         window->flush();
 582         window->unlock_window();
 583         plugin->send_configure_change();
 584 // printf("GradientInColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 585 // plugin->config.in_r,
 586 // plugin->config.in_g,
 587 // plugin->config.in_b,
 588 // plugin->config.in_a,
 589 // plugin->config.out_r,
 590 // plugin->config.out_g,
 591 // plugin->config.out_b,
 592 // plugin->config.out_a);
 593
 594         return 1;
 595 }
 596
 597
 598
 599 GradientOutColorThread::GradientOutColorThread(GradientMain *plugin,
 600         GradientWindow *window)
 601  : ColorPicker(1, _("Outer color"))
 602 {
 603         this->plugin = plugin;
 604         this->window = window;
 605 }
 606
 607 int GradientOutColorThread::handle_new_color(int output, int alpha)
 608 {
 609         plugin->config.out_r = (output & 0xff0000) >> 16;
 610         plugin->config.out_g = (output & 0xff00) >> 8;
 611         plugin->config.out_b = (output & 0xff);
 612         plugin->config.out_a = alpha;
 613         window->lock_window("GradientOutColorThread::handle_new_color");
 614         window->update_out_color();
 615         window->flush();
 616         window->unlock_window();
 617         plugin->send_configure_change();
 618 // printf("GradientOutColorThread::handle_event 1 %d %d %d %d %d %d %d %d\n",
 619 // plugin->config.in_r,
 620 // plugin->config.in_g,
 621 // plugin->config.in_b,
 622 // plugin->config.in_a,
 623 // plugin->config.out_r,
 624 // plugin->config.out_g,
 625 // plugin->config.out_b,
 626 // plugin->config.out_a);
 627         return 1;
 628 }
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641 GradientMain::GradientMain(PluginServer *server)
 642  : PluginVClient(server)
 643 {
 644
 645         need_reconfigure = 1;
 646         gradient = 0;
 647         engine = 0;
 648         overlayer = 0;
 649 }
 650
 651 GradientMain::~GradientMain()
 652 {
 653
 654
 655         if(gradient) delete gradient;
 656         if(engine) delete engine;
 657         if(overlayer) delete overlayer;
 658 }
 659
 660 const char* GradientMain::plugin_title() { return N_("Gradient"); }
 661 int GradientMain::is_realtime() { return 1; }
 662
 663
 664 NEW_WINDOW_MACRO(GradientMain, GradientWindow)
 665
 666 LOAD_CONFIGURATION_MACRO(GradientMain, GradientConfig)
 667
 668 int GradientMain::is_synthesis()
 669 {
 670         return 1;
 671 }
 672
 673
 674 int GradientMain::process_buffer(VFrame *frame,
 675         int64_t start_position,
 676         double frame_rate)
 677 {
 678         this->input = frame;
 679         this->output = frame;
 680         need_reconfigure |= load_configuration();
 681
 682         int need_alpha = config.in_a != 0xff || config.out_a != 0xff;
 683         if(need_alpha)
 684                 read_frame(frame,
 685                         0,
 686                         start_position,
 687                         frame_rate,
 688                         get_use_opengl());
 689         if(get_use_opengl()) return run_opengl();
 690
 691         int gradient_cmodel = input->get_color_model();
 692         if(need_alpha && BC_CModels::components(gradient_cmodel) == 3)
 693         {
 694                 switch(gradient_cmodel)
 695                 {
 696                         case BC_RGB888:
 697                                 gradient_cmodel = BC_RGBA8888;
 698                                 break;
 699                         case BC_RGB_FLOAT:
 700                                 gradient_cmodel = BC_RGBA_FLOAT;
 701                                 break;
 702                         case BC_YUV888:
 703                                 gradient_cmodel = BC_YUVA8888;
 704                                 break;
 705                 }
 706         }
 707
 708         if(gradient && gradient->get_color_model() != gradient_cmodel)
 709         {
 710                 delete gradient;
 711                 gradient = 0;
 712         }
 713
 714         if(!gradient)
 715                 gradient = new VFrame(input->get_w(), input->get_h(),
 716                         gradient_cmodel, 0);
 717
 718         if(!engine) engine = new GradientServer(this,
 719                 get_project_smp() + 1,
 720                 get_project_smp() + 1);
 721         engine->process_packages();
 722
 723 // Use overlay routine in GradientServer if mismatched colormodels
 724         if(gradient->get_color_model() == output->get_color_model())
 725         {
 726                 if(!overlayer) overlayer = new OverlayFrame(get_project_smp() + 1);
 727                 overlayer->overlay(output,
 728                         gradient,
 729                         0,
 730                         0,
 731                         input->get_w(),
 732                         input->get_h(),
 733                         0,
 734                         0,
 735                         input->get_w(),
 736                         input->get_h(),
 737                         1.0,
 738                         TRANSFER_NORMAL,
 739                         NEAREST_NEIGHBOR);
 740         }
 741
 742
 743         return 0;
 744 }
 745
 746
 747 void GradientMain::update_gui()
 748 {
 749         if( !thread ) return;
 750         if( !load_configuration() ) return;
 751         ((GradientWindow*)thread->window)->lock_window("GradientMain::update_gui");
 752         GradientWindow *window = (GradientWindow *)thread->window;
 753         window->update_gui();
 754         window->unlock_window();
 755 }
 756
 757 void GradientWindow::update_gui()
 758 {
 759         GradientConfig &config = plugin->config;
 760         rate->set_text(GradientRate::to_text(config.rate));
 761         in_radius->update(config.in_radius);
 762         out_radius->update(config.out_radius);
 763         shape->set_text(GradientShape::to_text(config.shape));
 764         if( angle ) angle->update(config.angle);
 765         if( center_x ) center_x->update(config.center_x);
 766         if( center_y ) center_y->update(config.center_y);
 767         update_in_color();
 768         update_out_color();
 769         update_shape();
 770         unlock_window();
 771         in_color_thread->update_gui(config.get_in_color(), config.in_a);
 772         out_color_thread->update_gui(config.get_out_color(), config.out_a);
 773         lock_window("GradientWindow::update_gui");
 774 }
 775
 776
 777 void GradientMain::save_data(KeyFrame *keyframe)
 778 {
 779         FileXML output;
 780
 781 // cause data to be stored directly in text
 782         output.set_shared_output(keyframe->xbuf);
 783         output.tag.set_title("GRADIENT");
 784
 785         output.tag.set_property("ANGLE", config.angle);
 786         output.tag.set_property("IN_RADIUS", config.in_radius);
 787         output.tag.set_property("OUT_RADIUS", config.out_radius);
 788         output.tag.set_property("IN_R", config.in_r);
 789         output.tag.set_property("IN_G", config.in_g);
 790         output.tag.set_property("IN_B", config.in_b);
 791         output.tag.set_property("IN_A", config.in_a);
 792         output.tag.set_property("OUT_R", config.out_r);
 793         output.tag.set_property("OUT_G", config.out_g);
 794         output.tag.set_property("OUT_B", config.out_b);
 795         output.tag.set_property("OUT_A", config.out_a);
 796         output.tag.set_property("SHAPE", config.shape);
 797         output.tag.set_property("RATE", config.rate);
 798         output.tag.set_property("CENTER_X", config.center_x);
 799         output.tag.set_property("CENTER_Y", config.center_y);
 800         output.append_tag();
 801         output.tag.set_title("/GRADIENT");
 802         output.append_tag();
 803         output.append_newline();
 804         output.terminate_string();
 805 }
 806
 807 void GradientMain::read_data(KeyFrame *keyframe)
 808 {
 809         FileXML input;
 810
 811         input.set_shared_input(keyframe->xbuf);
 812
 813         int result = 0;
 814
 815         while(!result)
 816         {
 817                 result = input.read_tag();
 818
 819                 if(!result)
 820                 {
 821                         if(input.tag.title_is("GRADIENT"))
 822                         {
 823                                 config.angle = input.tag.get_property("ANGLE", config.angle);
 824                                 config.rate = input.tag.get_property("RATE", config.rate);
 825                                 config.in_radius = input.tag.get_property("IN_RADIUS", config.in_radius);
 826                                 config.out_radius = input.tag.get_property("OUT_RADIUS", config.out_radius);
 827                                 config.in_r = input.tag.get_property("IN_R", config.in_r);
 828                                 config.in_g = input.tag.get_property("IN_G", config.in_g);
 829                                 config.in_b = input.tag.get_property("IN_B", config.in_b);
 830                                 config.in_a = input.tag.get_property("IN_A", config.in_a);
 831                                 config.out_r = input.tag.get_property("OUT_R", config.out_r);
 832                                 config.out_g = input.tag.get_property("OUT_G", config.out_g);
 833                                 config.out_b = input.tag.get_property("OUT_B", config.out_b);
 834                                 config.out_a = input.tag.get_property("OUT_A", config.out_a);
 835                                 config.shape = input.tag.get_property("SHAPE", config.shape);
 836                                 config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 837                                 config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 838                         }
 839                 }
 840         }
 841 }
 842
 843 int GradientMain::handle_opengl()
 844 {
 845 #ifdef HAVE_GL
 846         const char *head_frag =
 847                 "uniform sampler2D tex;\n"
 848                 "uniform float half_w;\n"
 849                 "uniform float half_h;\n"
 850                 "uniform float center_x;\n"
 851                 "uniform float center_y;\n"
 852                 "uniform float half_gradient_size;\n"
 853                 "uniform float sin_angle;\n"
 854                 "uniform float cos_angle;\n"
 855                 "uniform vec4 out_color;\n"
 856                 "uniform vec4 in_color;\n"
 857                 "uniform float in_radius;\n"
 858                 "uniform float out_radius;\n"
 859                 "uniform float radius_diff;\n"
 860                 "\n"
 861                 "void main()\n"
 862                 "{\n"
 863                 "       vec2 out_coord = gl_TexCoord[0].st;\n";
 864
 865         const char *linear_shape =
 866                 "       vec2 in_coord = vec2(out_coord.x - half_w, half_h - out_coord.y);\n"
 867                 "       float mag = half_gradient_size - \n"
 868                 "               (in_coord.x * sin_angle + in_coord.y * cos_angle);\n";
 869
 870         const char *radial_shape =
 871                 "       vec2 in_coord = vec2(out_coord.x - center_x, out_coord.y - center_y);\n"
 872                 "       float mag = length(vec2(in_coord.x, in_coord.y));\n";
 873
 874 // No clamp function in NVidia
 875         const char *linear_rate =
 876                 "       mag = min(max(mag, in_radius), out_radius);\n"
 877                 "       float opacity = (mag - in_radius) / radius_diff;\n";
 878
 879 // NVidia warns about exp, but exp is in the GLSL spec.
 880         const char *log_rate =
 881                 "       mag = max(mag, in_radius);\n"
 882                 "       float opacity = 1.0 - \n"
 883                 "               exp(1.0 * -(mag - in_radius) / radius_diff);\n";
 884
 885         const char *square_rate =
 886                 "       mag = min(max(mag, in_radius), out_radius);\n"
 887                 "       float opacity = pow((mag - in_radius) / radius_diff, 2.0);\n"
 888                 "       opacity = min(opacity, 1.0);\n";
 889
 890         const char *tail_frag =
 891                 "       vec4 color = mix(in_color, out_color, opacity);\n"
 892                 "       vec4 bg_color = texture2D(tex, out_coord);\n"
 893                 "       gl_FragColor.rgb = mix(bg_color.rgb, color.rgb, color.a);\n"
 894                 "       gl_FragColor.a = max(bg_color.a, color.a);\n"
 895                 "}\n";
 896
 897
 898         const char *shader_stack[16];
 899         memset(shader_stack,0, sizeof(shader_stack));
 900         int current_shader = 0;
 901
 902         shader_stack[current_shader++] = head_frag;
 903
 904         const char *shape_frag = 0;
 905         switch( config.shape ) {
 906         case GradientConfig::LINEAR:
 907                 shape_frag = linear_shape;
 908                 break;
 909         default:
 910                 shape_frag = radial_shape;
 911                 break;
 912         }
 913         if( shape_frag )
 914                 shader_stack[current_shader++] = shape_frag;
 915
 916         const char *rate_frag = 0;
 917         switch(config.rate) {
 918         case GradientConfig::LINEAR:
 919                 rate_frag = linear_rate;
 920                 break;
 921         case GradientConfig::LOG:
 922                 rate_frag = log_rate;
 923                 break;
 924         case GradientConfig::SQUARE:
 925                 rate_frag = square_rate;
 926                 break;
 927         }
 928         if( rate_frag )
 929                 shader_stack[current_shader++] = rate_frag;
 930
 931         shader_stack[current_shader++] = tail_frag;
 932
 933 // Force frame to create texture without copying to it if full alpha.
 934          if( config.in_a >= 0xff && config.out_a >= 0xff )
 935                 get_output()->set_opengl_state(VFrame::TEXTURE);
 936         get_output()->to_texture();
 937         get_output()->enable_opengl();
 938         get_output()->init_screen();
 939         get_output()->bind_texture(0);
 940
 941         shader_stack[current_shader] = 0;
 942         unsigned int shader = VFrame::make_shader(shader_stack);
 943         if( shader > 0 ) {
 944                 glUseProgram(shader);
 945                 float w = get_output()->get_w();
 946                 float h = get_output()->get_h();
 947                 float texture_w = get_output()->get_texture_w();
 948                 float texture_h = get_output()->get_texture_h();
 949                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
 950                 glUniform1f(glGetUniformLocation(shader, "half_w"), w / 2 / texture_w);
 951                 glUniform1f(glGetUniformLocation(shader, "half_h"), h / 2 / texture_h);
 952                 if(config.shape == GradientConfig::LINEAR)
 953                 {
 954                         glUniform1f(glGetUniformLocation(shader, "center_x"),
 955                                 w / 2 / texture_w);
 956                         glUniform1f(glGetUniformLocation(shader, "center_y"),
 957                                 h / 2 / texture_h);
 958                 }
 959                 else
 960                 {
 961                         glUniform1f(glGetUniformLocation(shader, "center_x"),
 962                                 (float)config.center_x * w / 100 / texture_w);
 963                         glUniform1f(glGetUniformLocation(shader, "center_y"),
 964                                 (float)config.center_y * h / 100 / texture_h);
 965                 }
 966                 float gradient_size = hypotf(w / texture_w, h / texture_h);
 967                 glUniform1f(glGetUniformLocation(shader, "half_gradient_size"),
 968                         gradient_size / 2);
 969                 glUniform1f(glGetUniformLocation(shader, "sin_angle"),
 970                         sin(config.angle * (M_PI / 180)));
 971                 glUniform1f(glGetUniformLocation(shader, "cos_angle"),
 972                         cos(config.angle * (M_PI / 180)));
 973                 float in_radius = (float)config.in_radius / 100 * gradient_size;
 974                 glUniform1f(glGetUniformLocation(shader, "in_radius"), in_radius);
 975                 float out_radius = (float)config.out_radius / 100 * gradient_size;
 976                 glUniform1f(glGetUniformLocation(shader, "out_radius"), out_radius);
 977                 glUniform1f(glGetUniformLocation(shader, "radius_diff"),
 978                         out_radius - in_radius);
 979
 980                 switch(get_output()->get_color_model()) {
 981                 case BC_YUV888:
 982                 case BC_YUVA8888: {
 983                         float in1, in2, in3, in4;
 984                         float out1, out2, out3, out4;
 985                         YUV::yuv.rgb_to_yuv_f(
 986                                 (float)config.in_r / 0xff,
 987                                 (float)config.in_g / 0xff,
 988                                 (float)config.in_b / 0xff,
 989                                 in1, in2, in3);
 990                                 in4 = (float)config.in_a / 0xff;
 991                         YUV::yuv.rgb_to_yuv_f(
 992                                 (float)config.out_r / 0xff,
 993                                 (float)config.out_g / 0xff,
 994                                 (float)config.out_b / 0xff,
 995                                 out1, out2, out3);
 996                         in2 += 0.5;   in3 += 0.5;
 997                         out2 += 0.5;  out3 += 0.5;
 998                         out4 = (float)config.out_a / 0xff;
 999                         glUniform4f(glGetUniformLocation(shader, "out_color"),
1000                                 out1, out2, out3, out4);
1001                         glUniform4f(glGetUniformLocation(shader, "in_color"),
1002                                 in1, in2, in3, in4);
1003                         break; }
1004
1005                 default:
1006                         glUniform4f(glGetUniformLocation(shader, "out_color"),
1007                                 (float)config.out_r / 0xff,
1008                                 (float)config.out_g / 0xff,
1009                                 (float)config.out_b / 0xff,
1010                                 (float)config.out_a / 0xff);
1011                         glUniform4f(glGetUniformLocation(shader, "in_color"),
1012                                 (float)config.in_r / 0xff,
1013                                 (float)config.in_g / 0xff,
1014                                 (float)config.in_b / 0xff,
1015                                 (float)config.in_a / 0xff);
1016                         break;
1017                 }
1018         }
1019
1020         get_output()->draw_texture();
1021         glUseProgram(0);
1022         get_output()->set_opengl_state(VFrame::SCREEN);
1023
1024 #endif
1025         return 0;
1026 }
1027
1028
1029 GradientPackage::GradientPackage()
1030  : LoadPackage()
1031 {
1032 }
1033
1034 GradientUnit::GradientUnit(GradientServer *server, GradientMain *plugin)
1035  : LoadClient(server)
1036 {
1037         this->plugin = plugin;
1038         this->server = server;
1039 }
1040
1041
1042 static float calculate_opacity(float mag,
1043         float in_radius, float out_radius, int rate)
1044 {
1045         float opacity = 0.0;
1046         switch(rate)
1047         {
1048                 case GradientConfig::LINEAR:
1049                         if(mag < in_radius)
1050                                 opacity = 0.0;
1051                         else
1052                         if(mag >= out_radius)
1053                                 opacity = 1.0;
1054                         else
1055                                 opacity = (float)(mag - in_radius) / (out_radius - in_radius);
1056                         break;
1057
1058                 case GradientConfig::LOG:
1059                         if(mag < in_radius)
1060                                 opacity = 0;
1061                         else
1062 // Let this one decay beyond out_radius
1063                                 opacity = 1 - exp(1.0 * -(float)(mag - in_radius) /
1064                                         (out_radius - in_radius));
1065                         break;
1066
1067                 case GradientConfig::SQUARE:
1068                         if(mag < in_radius)
1069                                 opacity = 0.0;
1070                         else
1071                         if(mag >= out_radius)
1072                                 opacity = 1.0;
1073                         else
1074                                 opacity = powf((float)(mag - in_radius) /
1075                                         (out_radius - in_radius), 2.0);
1076                         break;
1077         }
1078         CLAMP(opacity, 0.0, 1.0);
1079         return opacity;
1080 }
1081
1082 #define CREATE_GRADIENT(type, temp, components, max) \
1083 { \
1084 /* Synthesize linear gradient for lookups */ \
1085  \
1086         r_table = malloc(sizeof(type) * gradient_size); \
1087         g_table = malloc(sizeof(type) * gradient_size); \
1088         b_table = malloc(sizeof(type) * gradient_size); \
1089         a_table = malloc(sizeof(type) * gradient_size); \
1090  \
1091         for(int i = 0; i < gradient_size; i++) \
1092         { \
1093                 float opacity = calculate_opacity(i, in_radius, out_radius, plugin->config.rate); \
1094                 float transparency; \
1095  \
1096                 transparency = 1.0 - opacity; \
1097                 ((type*)r_table)[i] = (type)(out1 * opacity + in1 * transparency); \
1098                 ((type*)g_table)[i] = (type)(out2 * opacity + in2 * transparency); \
1099                 ((type*)b_table)[i] = (type)(out3 * opacity + in3 * transparency); \
1100                 ((type*)a_table)[i] = (type)(out4 * opacity + in4 * transparency); \
1101         } \
1102  \
1103         for(int i = pkg->y1; i < pkg->y2; i++) \
1104         { \
1105                 type *gradient_row = (type*)plugin->gradient->get_rows()[i]; \
1106                 type *out_row = (type*)plugin->get_output()->get_rows()[i]; \
1107  \
1108                 switch(plugin->config.shape) \
1109                 { \
1110                         case GradientConfig::LINEAR: \
1111                                 for(int j = 0; j < w; j++) \
1112                                 { \
1113                                         int x = j - half_w; \
1114                                         int y = -(i - half_h); \
1115                  \
1116 /* Rotate by effect angle */ \
1117                                         int mag = (int)(gradient_size / 2 - \
1118                                                 (x * sin_angle + y * cos_angle) + \
1119                                                 0.5); \
1120                  \
1121 /* Get gradient value from these coords */ \
1122                  \
1123                                         if(sizeof(type) == 4) \
1124                                         { \
1125                                                 float opacity = calculate_opacity(mag,  \
1126                                                         in_radius,  \
1127                                                         out_radius, \
1128                                                         plugin->config.rate); \
1129                                                 float transparency = 1.0 - opacity; \
1130                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1131                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1132                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1133                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1134                                         } \
1135                                         else \
1136                                         if(mag < 0) \
1137                                         { \
1138                                                 gradient_row[0] = out1; \
1139                                                 gradient_row[1] = out2; \
1140                                                 gradient_row[2] = out3; \
1141                                                 if(components == 4) gradient_row[3] = out4; \
1142                                         } \
1143                                         else \
1144                                         if(mag >= gradient_size) \
1145                                         { \
1146                                                 gradient_row[0] = in1; \
1147                                                 gradient_row[1] = in2; \
1148                                                 gradient_row[2] = in3; \
1149                                                 if(components == 4) gradient_row[3] = in4; \
1150                                         } \
1151                                         else \
1152                                         { \
1153                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1154                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1155                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1156                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1157                                         } \
1158  \
1159 /* Overlay mixed colormodels onto output */ \
1160                                         if(gradient_cmodel != output_cmodel) \
1161                                         { \
1162                                                 temp opacity = gradient_row[3]; \
1163                                                 temp transparency = max - opacity; \
1164                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1165                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1166                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1167                                                 out_row += 3; \
1168                                         } \
1169  \
1170                                         gradient_row += components; \
1171                                 } \
1172                                 break; \
1173  \
1174                         case GradientConfig::RADIAL: \
1175                                 for(int j = 0; j < w; j++) \
1176                                 { \
1177                                         double x = j - center_x; \
1178                                         double y = i - center_y; \
1179                                         double magnitude = hypot(x, y); \
1180                                         int mag = (int)magnitude; \
1181                                         if(sizeof(type) == 4) \
1182                                         { \
1183                                                 float opacity = calculate_opacity(mag,  \
1184                                                         in_radius,  \
1185                                                         out_radius, \
1186                                                         plugin->config.rate); \
1187                                                 float transparency = 1.0 - opacity; \
1188                                                 gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
1189                                                 gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
1190                                                 gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
1191                                                 if(components == 4) gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
1192                                         } \
1193                                         else \
1194                                         { \
1195                                                 gradient_row[0] = ((type*)r_table)[mag]; \
1196                                                 gradient_row[1] = ((type*)g_table)[mag]; \
1197                                                 gradient_row[2] = ((type*)b_table)[mag]; \
1198                                                 if(components == 4) gradient_row[3] = ((type*)a_table)[mag]; \
1199                                         } \
1200  \
1201 /* Overlay mixed colormodels onto output */ \
1202                                         if(gradient_cmodel != output_cmodel) \
1203                                         { \
1204                                                 temp opacity = gradient_row[3]; \
1205                                                 temp transparency = max - opacity; \
1206                                                 out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
1207                                                 out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
1208                                                 out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
1209                                                 out_row += 3; \
1210                                         } \
1211  \
1212                                         gradient_row += components; \
1213                                 } \
1214                                 break; \
1215                 } \
1216         } \
1217 }
1218
1219 void GradientUnit::process_package(LoadPackage *package)
1220 {
1221         GradientPackage *pkg = (GradientPackage*)package;
1222         int h = plugin->input->get_h();
1223         int w = plugin->input->get_w();
1224         int half_w = w / 2;
1225         int half_h = h / 2;
1226         int gradient_size = (int)(ceil(hypot(w, h)));
1227         int in_radius = (int)(plugin->config.in_radius / 100 * gradient_size);
1228         int out_radius = (int)(plugin->config.out_radius / 100 * gradient_size);
1229         double sin_angle = sin(plugin->config.angle * (M_PI / 180));
1230         double cos_angle = cos(plugin->config.angle * (M_PI / 180));
1231         double center_x = plugin->config.center_x * w / 100;
1232         double center_y = plugin->config.center_y * h / 100;
1233         void *r_table = 0;
1234         void *g_table = 0;
1235         void *b_table = 0;
1236         void *a_table = 0;
1237         int gradient_cmodel = plugin->gradient->get_color_model();
1238         int output_cmodel = plugin->get_output()->get_color_model();
1239
1240         if(in_radius > out_radius)
1241         {
1242             in_radius ^= out_radius;
1243             out_radius ^= in_radius;
1244             in_radius ^= out_radius;
1245         }
1246
1247
1248         switch(gradient_cmodel)
1249         {
1250                 case BC_RGB888:
1251                 {
1252                         int in1 = plugin->config.in_r;
1253                         int in2 = plugin->config.in_g;
1254                         int in3 = plugin->config.in_b;
1255                         int in4 = plugin->config.in_a;
1256                         int out1 = plugin->config.out_r;
1257                         int out2 = plugin->config.out_g;
1258                         int out3 = plugin->config.out_b;
1259                         int out4 = plugin->config.out_a;
1260                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1261                         break;
1262                 }
1263
1264                 case BC_RGBA8888:
1265                 {
1266                         int in1 = plugin->config.in_r;
1267                         int in2 = plugin->config.in_g;
1268                         int in3 = plugin->config.in_b;
1269                         int in4 = plugin->config.in_a;
1270                         int out1 = plugin->config.out_r;
1271                         int out2 = plugin->config.out_g;
1272                         int out3 = plugin->config.out_b;
1273                         int out4 = plugin->config.out_a;
1274                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1275                         break;
1276                 }
1277
1278                 case BC_RGB_FLOAT:
1279                 {
1280                         float in1 = (float)plugin->config.in_r / 0xff;
1281                         float in2 = (float)plugin->config.in_g / 0xff;
1282                         float in3 = (float)plugin->config.in_b / 0xff;
1283                         float in4 = (float)plugin->config.in_a / 0xff;
1284                         float out1 = (float)plugin->config.out_r / 0xff;
1285                         float out2 = (float)plugin->config.out_g / 0xff;
1286                         float out3 = (float)plugin->config.out_b / 0xff;
1287                         float out4 = (float)plugin->config.out_a / 0xff;
1288                         CREATE_GRADIENT(float, float, 3, 1.0)
1289                         break;
1290                 }
1291
1292                 case BC_RGBA_FLOAT:
1293                 {
1294                         float in1 = (float)plugin->config.in_r / 0xff;
1295                         float in2 = (float)plugin->config.in_g / 0xff;
1296                         float in3 = (float)plugin->config.in_b / 0xff;
1297                         float in4 = (float)plugin->config.in_a / 0xff;
1298                         float out1 = (float)plugin->config.out_r / 0xff;
1299                         float out2 = (float)plugin->config.out_g / 0xff;
1300                         float out3 = (float)plugin->config.out_b / 0xff;
1301                         float out4 = (float)plugin->config.out_a / 0xff;
1302                         CREATE_GRADIENT(float, float, 4, 1.0)
1303                         break;
1304                 }
1305
1306                 case BC_YUV888:
1307                 {
1308                         int in1, in2, in3, in4;
1309                         int out1, out2, out3, out4;
1310                         YUV::yuv.rgb_to_yuv_8(plugin->config.in_r,
1311                                 plugin->config.in_g,
1312                                 plugin->config.in_b,
1313                                 in1,
1314                                 in2,
1315                                 in3);
1316                         in4 = plugin->config.in_a;
1317                         YUV::yuv.rgb_to_yuv_8(plugin->config.out_r,
1318                                 plugin->config.out_g,
1319                                 plugin->config.out_b,
1320                                 out1,
1321                                 out2,
1322                                 out3);
1323                         out4 = plugin->config.out_a;
1324                         CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1325                         break;
1326                 }
1327
1328                 case BC_YUVA8888:
1329                 {
1330                         int in1, in2, in3, in4;
1331                         int out1, out2, out3, out4;
1332                         YUV::yuv.rgb_to_yuv_8(plugin->config.in_r,
1333                                 plugin->config.in_g,
1334                                 plugin->config.in_b,
1335                                 in1,
1336                                 in2,
1337                                 in3);
1338                         in4 = plugin->config.in_a;
1339                         YUV::yuv.rgb_to_yuv_8(plugin->config.out_r,
1340                                 plugin->config.out_g,
1341                                 plugin->config.out_b,
1342                                 out1,
1343                                 out2,
1344                                 out3);
1345                         out4 = plugin->config.out_a;
1346                         CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1347                         break;
1348                 }
1349         }
1350
1351         if(r_table) free(r_table);
1352         if(g_table) free(g_table);
1353         if(b_table) free(b_table);
1354         if(a_table) free(a_table);
1355 }
1356
1357
1358
1359
1360
1361
1362 GradientServer::GradientServer(GradientMain *plugin,
1363         int total_clients,
1364         int total_packages)
1365  : LoadServer(total_clients, total_packages)
1366 {
1367         this->plugin = plugin;
1368 }
1369
1370 void GradientServer::init_packages()
1371 {
1372         for(int i = 0; i < get_total_packages(); i++)
1373         {
1374                 GradientPackage *package = (GradientPackage*)get_package(i);
1375                 package->y1 = plugin->input->get_h() *
1376                         i /
1377                         get_total_packages();
1378                 package->y2 = plugin->input->get_h() *
1379                         (i + 1) /
1380                         get_total_packages();
1381         }
1382 }
1383
1384 LoadClient* GradientServer::new_client()
1385 {
1386         return new GradientUnit(this, plugin);
1387 }
1388
1389 LoadPackage* GradientServer::new_package()
1390 {
1391         return new GradientPackage;
1392 }
1393
1394
1395
1396
1397