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 REGISTER_PLUGIN(GradientMain)
  39
  40 GradientConfig::GradientConfig()
  41 {
  42         reset();
  43 }
  44
  45 void GradientConfig::reset()
  46 {
  47         angle = 0;
  48         in_radius = 0;
  49         out_radius = 100;
  50         in_r  = in_g  = in_b  = in_a  = 0xff;
  51         out_r = out_g = out_b = out_a = 0x00;
  52         shape = GradientConfig::LINEAR;
  53         rate = GradientConfig::LINEAR;
  54         center_x = 50;
  55         center_y = 50;
  56 }
  57
  58 int GradientConfig::equivalent(GradientConfig &that)
  59 {
  60         return (EQUIV(angle, that.angle) &&
  61                 EQUIV(in_radius, that.in_radius) &&
  62                 EQUIV(out_radius, that.out_radius) &&
  63                 in_r == that.in_r &&
  64                 in_g == that.in_g &&
  65                 in_b == that.in_b &&
  66                 in_a == that.in_a &&
  67                 out_r == that.out_r &&
  68                 out_g == that.out_g &&
  69                 out_b == that.out_b &&
  70                 out_a == that.out_a &&
  71                 shape == that.shape &&
  72                 rate == that.rate &&
  73                 EQUIV(center_x, that.center_x) &&
  74                 EQUIV(center_y, that.center_y));
  75 }
  76
  77 void GradientConfig::copy_from(GradientConfig &that)
  78 {
  79         angle = that.angle;
  80         in_radius = that.in_radius;
  81         out_radius = that.out_radius;
  82         in_r = that.in_r;
  83         in_g = that.in_g;
  84         in_b = that.in_b;
  85         in_a = that.in_a;
  86         out_r = that.out_r;
  87         out_g = that.out_g;
  88         out_b = that.out_b;
  89         out_a = that.out_a;
  90         shape = that.shape;
  91         rate = that.rate;
  92         center_x = that.center_x;
  93         center_y = that.center_y;
  94 }
  95
  96 void GradientConfig::interpolate(GradientConfig &prev, GradientConfig &next,
  97                 long prev_frame, long next_frame, long current_frame)
  98 {
  99         double next_scale = (double)(current_frame - prev_frame) / (next_frame - prev_frame);
 100         double prev_scale = (double)(next_frame - current_frame) / (next_frame - prev_frame);
 101
 102         this->angle = (int)(prev.angle * prev_scale + next.angle * next_scale);
 103         this->in_radius = (int)(prev.in_radius * prev_scale + next.in_radius * next_scale);
 104         this->out_radius = (int)(prev.out_radius * prev_scale + next.out_radius * next_scale);
 105         in_r = (int)(prev.in_r * prev_scale + next.in_r * next_scale);
 106         in_g = (int)(prev.in_g * prev_scale + next.in_g * next_scale);
 107         in_b = (int)(prev.in_b * prev_scale + next.in_b * next_scale);
 108         in_a = (int)(prev.in_a * prev_scale + next.in_a * next_scale);
 109         out_r = (int)(prev.out_r * prev_scale + next.out_r * next_scale);
 110         out_g = (int)(prev.out_g * prev_scale + next.out_g * next_scale);
 111         out_b = (int)(prev.out_b * prev_scale + next.out_b * next_scale);
 112         out_a = (int)(prev.out_a * prev_scale + next.out_a * next_scale);
 113         shape = prev.shape;
 114         rate = prev.rate;
 115         center_x = prev.center_x * prev_scale + next.center_x * next_scale;
 116         center_y = prev.center_y * prev_scale + next.center_y * next_scale;
 117 }
 118
 119 int GradientConfig::get_in_color()
 120 {
 121         int result = (in_r << 16) | (in_g << 8) | (in_b);
 122         return result;
 123 }
 124
 125 int GradientConfig::get_out_color()
 126 {
 127         int result = (out_r << 16) | (out_g << 8) | (out_b);
 128         return result;
 129 }
 130
 131 #define COLOR_W 100
 132 #define COLOR_H 30
 133
 134 GradientWindow::GradientWindow(GradientMain *plugin)
 135  : PluginClientWindow(plugin, 350, 290, 350, 290, 0)
 136 {
 137         this->plugin = plugin;
 138         angle = 0;
 139         angle_title = 0;
 140         center_x = 0;
 141         center_y = 0;
 142         center_x_title = 0;
 143         center_y_title = 0;
 144 }
 145 GradientWindow::~GradientWindow()
 146 {
 147 }
 148
 149
 150 void GradientWindow::create_objects()
 151 {
 152         int margin = plugin->get_theme()->widget_border;
 153         int x = 10, y = 10;
 154         BC_Title *title;
 155
 156         add_subwindow(title = new BC_Title(x, y, _("Shape:")));
 157         add_subwindow(shape = new GradientShape(plugin, this,
 158                         x + title->get_w() + margin, y));
 159         shape->create_objects();
 160         y += shape->get_h() + margin;
 161         shape_x = x;
 162         shape_y = y;
 163         y += BC_Pot::calculate_h() + margin;
 164
 165         add_subwindow(title = new BC_Title(x, y, _("Rate:")));
 166         add_subwindow(rate = new GradientRate(plugin,
 167                         x + title->get_w() + margin, y));
 168         rate->create_objects();
 169         y += rate->get_h() + 3*margin;
 170
 171         int x1 = x, y1 = y;
 172         BC_Title *title1;
 173         add_subwindow(title1 = new BC_Title(x, y, _("Inner radius:")));
 174         y += BC_Slider::get_span(0) + margin;
 175         BC_Title *title2;
 176         add_subwindow(title2 = new BC_Title(x, y, _("Outer radius:")));
 177
 178         y = y1;
 179         x += MAX(title1->get_w(), title2->get_w()) + margin;
 180         add_subwindow(in_radius = new GradientInRadius(plugin, x, y));
 181         y += in_radius->get_h() + margin;
 182         add_subwindow(out_radius = new GradientOutRadius(plugin, x, y));
 183         y += out_radius->get_h() + 3*margin;
 184
 185         x = x1;
 186         add_subwindow(title1 = new BC_Title(x, y, _("Inner Color:")));
 187         y1 = y + COLOR_H+4 + 2*margin;
 188         add_subwindow(title2 = new BC_Title(x, y1, _("Outer Color:")));
 189         int x2 = x + MAX(title1->get_w(), title2->get_w()) + margin;
 190         int in_rgb = plugin->config.get_in_color();
 191         int in_a = plugin->config.in_a;
 192         add_subwindow(in_color = new GradientInColorButton(plugin, this, x2+2, y+2, in_rgb, in_a));
 193         draw_3d_border(x2,y, COLOR_W+4,COLOR_H+4, 1);
 194         in_color->create_objects();
 195
 196         int out_rgb = plugin->config.get_out_color();
 197         int out_a = plugin->config.out_a;
 198         add_subwindow(out_color = new GradientOutColorButton(plugin, this, x2+2, y1+2, out_rgb, out_a));
 199         draw_3d_border(x2,y1, COLOR_W+4,COLOR_H+4, 1);
 200         out_color->create_objects();
 201         y = y1 + COLOR_H+4 + 3*margin;
 202
 203         add_subwindow(reset = new GradientReset(plugin, this, x, y));
 204         update_shape();
 205         show_window();
 206 }
 207
 208 void GradientWindow::update_shape()
 209 {
 210         int x = shape_x, y = shape_y;
 211
 212         if( plugin->config.shape == GradientConfig::LINEAR ) {
 213                 delete center_x_title;  center_x_title = 0;
 214                 delete center_y_title;  center_y_title = 0;
 215                 delete center_x;  center_x = 0;
 216                 delete center_y;  center_y = 0;
 217                 if( !angle ) {
 218                         add_subwindow(angle_title = new BC_Title(x, y, _("Angle:")));
 219                         add_subwindow(angle = new GradientAngle(plugin, x + angle_title->get_w() + 10, y));
 220                 }
 221         }
 222         else {
 223                 delete angle_title;  angle_title = 0;
 224                 delete angle;  angle = 0;
 225                 if( !center_x ) {
 226                         add_subwindow(center_x_title = new BC_Title(x, y, _("Center X:")));
 227                         add_subwindow(center_x = new GradientCenterX(plugin,
 228                                 x + center_x_title->get_w() + 10, y));
 229                         x += center_x_title->get_w() + 10 + center_x->get_w() + 10;
 230                         add_subwindow(center_y_title = new BC_Title(x, y, _("Center Y:")));
 231                         add_subwindow(center_y = new GradientCenterY(plugin,
 232                                 x + center_y_title->get_w() + 10, y));
 233                 }
 234         }
 235         show_window();
 236 }
 237
 238 void GradientWindow::done_event(int result)
 239 {
 240         in_color->close_picker();
 241         out_color->close_picker();
 242 }
 243
 244 GradientShape::GradientShape(GradientMain *plugin, GradientWindow *gui, int x, int y)
 245  : BC_PopupMenu(x, y, 100, to_text(plugin->config.shape), 1)
 246 {
 247         this->plugin = plugin;
 248         this->gui = gui;
 249 }
 250 void GradientShape::create_objects()
 251 {
 252         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 253         add_item(new BC_MenuItem(to_text(GradientConfig::RADIAL)));
 254 }
 255 char* GradientShape::to_text(int shape)
 256 {
 257         switch( shape ) {
 258         case GradientConfig::LINEAR:    return _("Linear");
 259         }
 260         return _("Radial");
 261 }
 262 int GradientShape::from_text(char *text)
 263 {
 264         if( !strcmp(text, to_text(GradientConfig::LINEAR)) )
 265                 return GradientConfig::LINEAR;
 266         return GradientConfig::RADIAL;
 267 }
 268 int GradientShape::handle_event()
 269 {
 270         plugin->config.shape = from_text(get_text());
 271         gui->update_shape();
 272         plugin->send_configure_change();
 273         return 1;
 274 }
 275
 276
 277 GradientCenterX::GradientCenterX(GradientMain *plugin, int x, int y)
 278  : BC_FPot(x, y, plugin->config.center_x, 0, 100)
 279 {
 280         this->plugin = plugin;
 281 }
 282 int GradientCenterX::handle_event()
 283 {
 284         plugin->config.center_x = get_value();
 285         plugin->send_configure_change();
 286         return 1;
 287 }
 288
 289
 290 GradientCenterY::GradientCenterY(GradientMain *plugin, int x, int y)
 291  : BC_FPot(x, y, plugin->config.center_y, 0, 100)
 292 {
 293         this->plugin = plugin;
 294 }
 295
 296 int GradientCenterY::handle_event()
 297 {
 298         plugin->config.center_y = get_value();
 299         plugin->send_configure_change();
 300         return 1;
 301 }
 302
 303
 304 GradientAngle::GradientAngle(GradientMain *plugin, int x, int y)
 305  : BC_FPot(x, y, plugin->config.angle, -180, 180)
 306 {
 307         this->plugin = plugin;
 308 }
 309
 310 int GradientAngle::handle_event()
 311 {
 312         plugin->config.angle = get_value();
 313         plugin->send_configure_change();
 314         return 1;
 315 }
 316
 317
 318 GradientRate::GradientRate(GradientMain *plugin, int x, int y)
 319  : BC_PopupMenu(x, y, 100, to_text(plugin->config.rate), 1)
 320 {
 321         this->plugin = plugin;
 322 }
 323 void GradientRate::create_objects()
 324 {
 325         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 326         add_item(new BC_MenuItem(to_text(GradientConfig::LOG)));
 327         add_item(new BC_MenuItem(to_text(GradientConfig::SQUARE)));
 328 }
 329 char* GradientRate::to_text(int shape)
 330 {
 331         switch( shape ) {
 332         case GradientConfig::LINEAR:    return _("Linear");
 333         case GradientConfig::LOG:       return _("Log");
 334         }
 335         return _("Square");
 336 }
 337 int GradientRate::from_text(char *text)
 338 {
 339         if( !strcmp(text, to_text(GradientConfig::LINEAR)) )
 340                 return GradientConfig::LINEAR;
 341         if( !strcmp(text, to_text(GradientConfig::LOG)) )
 342                 return GradientConfig::LOG;
 343         return GradientConfig::SQUARE;
 344 }
 345 int GradientRate::handle_event()
 346 {
 347         plugin->config.rate = from_text(get_text());
 348         plugin->send_configure_change();
 349         return 1;
 350 }
 351
 352
 353 GradientInRadius::GradientInRadius(GradientMain *plugin, int x, int y)
 354  : BC_FSlider(x, y, 0, 200, 200,
 355                 0.f, 100.f, (float)plugin->config.in_radius)
 356 {
 357         this->plugin = plugin;
 358 }
 359
 360 int GradientInRadius::handle_event()
 361 {
 362         plugin->config.in_radius = get_value();
 363         plugin->send_configure_change();
 364         return 1;
 365 }
 366
 367
 368 GradientOutRadius::GradientOutRadius(GradientMain *plugin, int x, int y)
 369  : BC_FSlider(x, y, 0, 200, 200,
 370                 0.f, 100.f, (float)plugin->config.out_radius)
 371 {
 372         this->plugin = plugin;
 373 }
 374
 375 int GradientOutRadius::handle_event()
 376 {
 377         plugin->config.out_radius = get_value();
 378         plugin->send_configure_change();
 379         return 1;
 380 }
 381
 382
 383 GradientInColorButton::GradientInColorButton(GradientMain *plugin, GradientWindow *gui,
 384                 int x, int y, int color, int alpha)
 385  : ColorBoxButton(_("Inner color:"), x, y, COLOR_W, COLOR_H, color, alpha, 1)
 386 {
 387         this->plugin = plugin;
 388         this->gui = gui;
 389 }
 390
 391 GradientInColorButton::~GradientInColorButton()
 392 {
 393 }
 394
 395 void GradientInColorButton::handle_done_event(int result)
 396 {
 397         if( result ) {
 398                 gui->lock_window("GradientInColorButton::handle_done_event");
 399                 update_gui(orig_color, orig_alpha);
 400                 gui->unlock_window();
 401                 handle_new_color(orig_color, orig_alpha);
 402         }
 403 }
 404
 405 int GradientInColorButton::handle_new_color(int color, int alpha)
 406 {
 407         plugin->config.in_r = (color & 0xff0000) >> 16;
 408         plugin->config.in_g = (color & 0xff00) >> 8;
 409         plugin->config.in_b = (color & 0xff);
 410         plugin->config.in_a = alpha;
 411         plugin->send_configure_change();
 412         return 1;
 413 }
 414
 415 GradientOutColorButton::GradientOutColorButton(GradientMain *plugin, GradientWindow *gui,
 416                 int x, int y, int color, int alpha)
 417  : ColorBoxButton(_("Outer color:"), x, y, COLOR_W, COLOR_H, color, alpha, 1)
 418 {
 419         this->plugin = plugin;
 420         this->gui = gui;
 421 }
 422
 423 GradientOutColorButton::~GradientOutColorButton()
 424 {
 425 }
 426
 427 void GradientOutColorButton::handle_done_event(int result)
 428 {
 429         if( result ) {
 430                 gui->lock_window("GradientOutColorButton::handle_done_event");
 431                 update_gui(orig_color, orig_alpha);
 432                 gui->unlock_window();
 433                 handle_new_color(orig_color, orig_alpha);
 434         }
 435 }
 436
 437 int GradientOutColorButton::handle_new_color(int color, int alpha)
 438 {
 439         plugin->config.out_r = (color & 0xff0000) >> 16;
 440         plugin->config.out_g = (color & 0xff00) >> 8;
 441         plugin->config.out_b = (color & 0xff);
 442         plugin->config.out_a = alpha;
 443         plugin->send_configure_change();
 444         return 1;
 445 }
 446
 447
 448 GradientReset::GradientReset(GradientMain *plugin, GradientWindow *window, int x, int y)
 449  : BC_GenericButton(x, y, _("Reset"))
 450 {
 451         this->plugin = plugin;
 452         this->window = window;
 453 }
 454
 455 int GradientReset::handle_event()
 456 {
 457         plugin->config.reset();
 458         window->update_gui();
 459         plugin->send_configure_change();
 460         return 1;
 461 }
 462
 463
 464 GradientMain::GradientMain(PluginServer *server)
 465  : PluginVClient(server)
 466 {
 467
 468         need_reconfigure = 1;
 469         gradient = 0;
 470         engine = 0;
 471         overlayer = 0;
 472         table = 0;
 473         table_size = 0;
 474 }
 475
 476 GradientMain::~GradientMain()
 477 {
 478         delete [] table;
 479         delete gradient;
 480         delete engine;
 481         delete overlayer;
 482 }
 483
 484 const char* GradientMain::plugin_title() { return N_("Gradient"); }
 485 int GradientMain::is_realtime() { return 1; }
 486
 487
 488 NEW_WINDOW_MACRO(GradientMain, GradientWindow)
 489
 490 LOAD_CONFIGURATION_MACRO(GradientMain, GradientConfig)
 491
 492 int GradientMain::is_synthesis()
 493 {
 494         return 1;
 495 }
 496
 497
 498 int GradientMain::process_buffer(VFrame *frame,
 499         int64_t start_position,
 500         double frame_rate)
 501 {
 502         this->input = frame;
 503         this->output = frame;
 504         float fw = input->get_w(), fh = input->get_h();
 505         gradient_size = hypotf(fw, fh);
 506         need_reconfigure = load_configuration();
 507
 508         int need_alpha = config.in_a != 0xff || config.out_a != 0xff;
 509         if( need_alpha )
 510                 read_frame(frame, 0, start_position, frame_rate, get_use_opengl());
 511         if( get_use_opengl() ) return run_opengl();
 512
 513         int gradient_cmodel = input->get_color_model();
 514         if( need_alpha && BC_CModels::components(gradient_cmodel) == 3 ) {
 515                 switch( gradient_cmodel ) {
 516                 case BC_RGB888:     gradient_cmodel = BC_RGBA8888;    break;
 517                 case BC_YUV888:     gradient_cmodel = BC_YUVA8888;    break;
 518                 case BC_RGB_FLOAT:  gradient_cmodel = BC_RGBA_FLOAT;  break;
 519                 }
 520         }
 521
 522         int bpp = BC_CModels::calculate_pixelsize(gradient_cmodel);
 523         int comps = BC_CModels::components(gradient_cmodel);
 524         int grad_size1 = gradient_size + 1;
 525         int sz = 4 * (bpp / comps) * grad_size1;
 526         if( table_size < sz ) {
 527                 delete [] table;  table = 0;
 528         }
 529         if( !table ) {
 530                 table = new uint8_t[table_size = sz];
 531                 need_reconfigure = 1;
 532         }
 533
 534         if( gradient && gradient->get_color_model() != gradient_cmodel ) {
 535                 delete gradient;
 536                 gradient = 0;
 537         }
 538
 539         if( !gradient )
 540                 gradient = new VFrame(input->get_w(), input->get_h(),
 541                         gradient_cmodel, 0);
 542
 543         if( !engine )
 544                 engine = new GradientServer(this,
 545                         get_project_smp() + 1, get_project_smp() + 1);
 546         engine->process_packages();
 547
 548 // Use overlay routine in GradientServer if mismatched colormodels
 549         if( gradient->get_color_model() == output->get_color_model() ) {
 550                 if( !overlayer ) overlayer = new OverlayFrame(get_project_smp() + 1);
 551                 overlayer->overlay(output, gradient,
 552                         0, 0, input->get_w(), input->get_h(),
 553                         0, 0, input->get_w(), input->get_h(),
 554                         1.0, TRANSFER_NORMAL, NEAREST_NEIGHBOR);
 555         }
 556
 557         return 0;
 558 }
 559
 560
 561 void GradientMain::update_gui()
 562 {
 563         if( !thread ) return;
 564         if( !load_configuration() ) return;
 565         thread->window->lock_window("GradientMain::update_gui");
 566         if( load_configuration() ) {
 567                 GradientWindow *window = (GradientWindow *)thread->window;
 568                 window->update_gui();
 569                 window->flush();
 570         }
 571         thread->window->unlock_window();
 572 }
 573
 574 void GradientWindow::update_gui()
 575 {
 576         GradientConfig &config = plugin->config;
 577         rate->set_text(GradientRate::to_text(config.rate));
 578         in_radius->update(config.in_radius);
 579         out_radius->update(config.out_radius);
 580         shape->set_text(GradientShape::to_text(config.shape));
 581         if( angle ) angle->update(config.angle);
 582         if( center_x ) center_x->update(config.center_x);
 583         if( center_y ) center_y->update(config.center_y);
 584         update_shape();
 585         in_color->update_gui(config.get_in_color(), config.in_a);
 586         out_color->update_gui(config.get_out_color(), config.out_a);
 587 }
 588
 589
 590 void GradientMain::save_data(KeyFrame *keyframe)
 591 {
 592         FileXML output;
 593
 594 // cause data to be stored directly in text
 595         output.set_shared_output(keyframe->xbuf);
 596         output.tag.set_title("GRADIENT");
 597
 598         output.tag.set_property("ANGLE", config.angle);
 599         output.tag.set_property("IN_RADIUS", config.in_radius);
 600         output.tag.set_property("OUT_RADIUS", config.out_radius);
 601         output.tag.set_property("IN_R", config.in_r);
 602         output.tag.set_property("IN_G", config.in_g);
 603         output.tag.set_property("IN_B", config.in_b);
 604         output.tag.set_property("IN_A", config.in_a);
 605         output.tag.set_property("OUT_R", config.out_r);
 606         output.tag.set_property("OUT_G", config.out_g);
 607         output.tag.set_property("OUT_B", config.out_b);
 608         output.tag.set_property("OUT_A", config.out_a);
 609         output.tag.set_property("SHAPE", config.shape);
 610         output.tag.set_property("RATE", config.rate);
 611         output.tag.set_property("CENTER_X", config.center_x);
 612         output.tag.set_property("CENTER_Y", config.center_y);
 613         output.append_tag();
 614         output.tag.set_title("/GRADIENT");
 615         output.append_tag();
 616         output.append_newline();
 617         output.terminate_string();
 618 }
 619
 620 void GradientMain::read_data(KeyFrame *keyframe)
 621 {
 622         FileXML input;
 623
 624         input.set_shared_input(keyframe->xbuf);
 625
 626         int result = 0;
 627
 628         while( !(result = input.read_tag()) ) {
 629                 if( input.tag.title_is("GRADIENT") ) {
 630                         config.angle = input.tag.get_property("ANGLE", config.angle);
 631                         config.rate = input.tag.get_property("RATE", config.rate);
 632                         config.in_radius = input.tag.get_property("IN_RADIUS", config.in_radius);
 633                         config.out_radius = input.tag.get_property("OUT_RADIUS", config.out_radius);
 634                         config.in_r = input.tag.get_property("IN_R", config.in_r);
 635                         config.in_g = input.tag.get_property("IN_G", config.in_g);
 636                         config.in_b = input.tag.get_property("IN_B", config.in_b);
 637                         config.in_a = input.tag.get_property("IN_A", config.in_a);
 638                         config.out_r = input.tag.get_property("OUT_R", config.out_r);
 639                         config.out_g = input.tag.get_property("OUT_G", config.out_g);
 640                         config.out_b = input.tag.get_property("OUT_B", config.out_b);
 641                         config.out_a = input.tag.get_property("OUT_A", config.out_a);
 642                         config.shape = input.tag.get_property("SHAPE", config.shape);
 643                         config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 644                         config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 645                 }
 646         }
 647 }
 648
 649 int GradientMain::handle_opengl()
 650 {
 651 #ifdef HAVE_GL
 652         const char *head_frag =
 653                 "uniform sampler2D tex;\n"
 654                 "uniform vec2 tex_dimensions;\n"
 655                 "uniform vec2 center;\n"
 656                 "uniform vec2 angle;\n"
 657                 "uniform float gradient_size;\n"
 658                 "uniform vec4 out_color;\n"
 659                 "uniform vec4 in_color;\n"
 660                 "uniform float in_radius;\n"
 661                 "uniform float out_radius;\n"
 662                 "uniform float radius_diff;\n"
 663                 "\n"
 664                 "void main()\n"
 665                 "{\n"
 666                 "       vec2 out_coord = gl_TexCoord[0].st;\n"
 667                 "       vec2 in_coord = out_coord * tex_dimensions - center;\n";
 668
 669         const char *linear_shape =
 670                 "       float mag = 0.5 + dot(in_coord,angle)/gradient_size;\n";
 671
 672         const char *radial_shape =
 673                 "       float mag = length(in_coord)/gradient_size;\n";
 674
 675 // No clamp function in NVidia
 676         const char *linear_rate =
 677                 "       mag = min(max(mag, in_radius), out_radius);\n"
 678                 "       float opacity = (mag - in_radius) / radius_diff;\n";
 679
 680 // NVidia warns about exp, but exp is in the GLSL spec.
 681         const char *log_rate =
 682                 "       mag = max(mag, in_radius);\n"
 683                 "       float opacity = 1.0 - \n"
 684                 "               exp(1.0 * -(mag - in_radius) / radius_diff);\n";
 685
 686         const char *square_rate =
 687                 "       mag = min(max(mag, in_radius), out_radius);\n"
 688                 "       float opacity = pow((mag - in_radius) / radius_diff, 2.0);\n"
 689                 "       opacity = min(opacity, 1.0);\n";
 690
 691         const char *tail_frag =
 692                 "       vec4 color = mix(in_color, out_color, opacity);\n"
 693                 "       vec4 bg_color = texture2D(tex, out_coord);\n"
 694                 "       gl_FragColor.rgb = mix(bg_color.rgb, color.rgb, color.a);\n"
 695                 "       gl_FragColor.a = mix(bg_color.a, 1., color.a);\n"
 696                 "}\n";
 697
 698
 699         const char *shader_stack[16];
 700         memset(shader_stack,0, sizeof(shader_stack));
 701         int current_shader = 0;
 702
 703         shader_stack[current_shader++] = head_frag;
 704
 705         const char *shape_frag = 0;
 706         switch( config.shape ) {
 707         case GradientConfig::LINEAR:
 708                 shape_frag = linear_shape;
 709                 break;
 710         default:
 711                 shape_frag = radial_shape;
 712                 break;
 713         }
 714         if( shape_frag )
 715                 shader_stack[current_shader++] = shape_frag;
 716
 717         const char *rate_frag = 0;
 718         switch( config.rate ) {
 719         case GradientConfig::LINEAR:
 720                 rate_frag = linear_rate;
 721                 break;
 722         case GradientConfig::LOG:
 723                 rate_frag = log_rate;
 724                 break;
 725         case GradientConfig::SQUARE:
 726                 rate_frag = square_rate;
 727                 break;
 728         }
 729         if( rate_frag )
 730                 shader_stack[current_shader++] = rate_frag;
 731
 732         shader_stack[current_shader++] = tail_frag;
 733
 734 // Force frame to create texture without copying to it if full alpha.
 735          if( config.in_a >= 0xff && config.out_a >= 0xff )
 736                 get_output()->set_opengl_state(VFrame::TEXTURE);
 737         get_output()->to_texture();
 738         get_output()->enable_opengl();
 739         get_output()->init_screen();
 740         get_output()->bind_texture(0);
 741
 742         shader_stack[current_shader] = 0;
 743         unsigned int shader = VFrame::make_shader(shader_stack);
 744         if( shader > 0 ) {
 745                 glUseProgram(shader);
 746                 float w = get_output()->get_w();
 747                 float h = get_output()->get_h();
 748                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
 749                 float texture_w = get_output()->get_texture_w();
 750                 float texture_h = get_output()->get_texture_h();
 751                 glUniform2f(glGetUniformLocation(shader, "tex_dimensions"),
 752                         texture_w, texture_h);
 753                 float u = config.shape == GradientConfig::LINEAR ?
 754                         0.5f : config.center_x/100.f;
 755                 float v = config.shape == GradientConfig::LINEAR ?
 756                         0.5f : config.center_y/100.f;
 757                 glUniform2f(glGetUniformLocation(shader, "center"),
 758                         u * w, v * h);
 759                 glUniform1f(glGetUniformLocation(shader, "gradient_size"),
 760                         gradient_size);
 761                 glUniform2f(glGetUniformLocation(shader, "angle"),
 762                         -sin(config.angle * (M_PI / 180)), cos(config.angle * (M_PI / 180)));
 763
 764                 float in_radius = (float)config.in_radius/100;
 765                 float out_radius = (float)config.out_radius/100;
 766                 if( in_radius > out_radius ) {
 767                         float r = in_radius;
 768                         in_radius = out_radius;
 769                         out_radius = r;
 770                 }
 771                 glUniform1f(glGetUniformLocation(shader, "in_radius"), in_radius);
 772                 glUniform1f(glGetUniformLocation(shader, "out_radius"), out_radius);
 773                 glUniform1f(glGetUniformLocation(shader, "radius_diff"),
 774                         out_radius - in_radius);
 775
 776                 float in_r  = (float)config.in_r  / 0xff;
 777                 float in_g  = (float)config.in_g  / 0xff;
 778                 float in_b  = (float)config.in_b  / 0xff;
 779                 float in_a  = (float)config.in_a  / 0xff;
 780                 float out_r = (float)config.out_r / 0xff;
 781                 float out_g = (float)config.out_g / 0xff;
 782                 float out_b = (float)config.out_b / 0xff;
 783                 float out_a = (float)config.out_a / 0xff;
 784                 switch( get_output()->get_color_model() ) {
 785                 case BC_YUV888:
 786                 case BC_YUVA8888: {
 787                         float in1, in2, in3, in4;
 788                         float out1, out2, out3, out4;
 789                         YUV::yuv.rgb_to_yuv_f(in_r,in_g,in_b, in1,in2,in3);
 790                         in2  += 0.5;  in3 += 0.5;   in4 = in_a;
 791                         YUV::yuv.rgb_to_yuv_f(out_r,out_g,out_b, out1,out2,out3);
 792                         out2 += 0.5;  out3 += 0.5;  out4 = out_a;
 793                         glUniform4f(glGetUniformLocation(shader, "out_color"),
 794                                 out1, out2, out3, out4);
 795                         glUniform4f(glGetUniformLocation(shader, "in_color"),
 796                                 in1, in2, in3, in4);
 797                         break; }
 798
 799                 default: {
 800                         glUniform4f(glGetUniformLocation(shader, "out_color"),
 801                                 out_r, out_g, out_b, out_a);
 802                         glUniform4f(glGetUniformLocation(shader, "in_color"),
 803                                 in_r, in_g, in_b, in_a);
 804                         break; }
 805                 }
 806         }
 807
 808         get_output()->draw_texture();
 809         glUseProgram(0);
 810         get_output()->set_opengl_state(VFrame::SCREEN);
 811
 812 #endif
 813         return 0;
 814 }
 815
 816
 817 GradientPackage::GradientPackage()
 818  : LoadPackage()
 819 {
 820 }
 821
 822 GradientUnit::GradientUnit(GradientServer *server, GradientMain *plugin)
 823  : LoadClient(server)
 824 {
 825         this->plugin = plugin;
 826         this->server = server;
 827 }
 828
 829
 830 static float calculate_opacity(float mag,
 831                 float in_radius, float out_radius, int rate)
 832 {
 833         float mag_diff = mag - in_radius;
 834         float radius_diff = out_radius - in_radius;
 835         if( !radius_diff ) return 1.0;
 836         float opacity = 0.0;
 837         switch( rate ) {
 838         case GradientConfig::LINEAR:
 839                 opacity = mag < in_radius ? 0.0 : mag >= out_radius ? 1.0 :
 840                                 mag_diff / radius_diff;
 841                 break;
 842         case GradientConfig::LOG:
 843                 opacity = mag < in_radius ? 0.0 : // Let this one decay beyond out_radius
 844                                 1 - exp(1.0 * -mag_diff / radius_diff);
 845                 break;
 846         case GradientConfig::SQUARE:
 847                 opacity = mag < in_radius ? 0.0 : mag >= out_radius ? 1.0 :
 848                                 powf(mag_diff / radius_diff, 2.);
 849                 break;
 850         }
 851         return opacity;
 852 }
 853
 854 #define CREATE_GRADIENT(type, temp, components, max) { \
 855 /* Synthesize linear gradient for lookups */ \
 856         int grad_size = plugin->gradient_size; \
 857         int n = sizeof(type) * (grad_size+1); \
 858         void *r_table = (void*) (plugin->table + 0*n); \
 859         void *g_table = (void*) (plugin->table + 1*n); \
 860         void *b_table = (void*) (plugin->table + 2*n); \
 861         void *a_table = (void*) (plugin->table + 3*n); \
 862         double grad_size2 = grad_size / 2.; \
 863  \
 864         if( plugin->need_reconfigure ) { \
 865                 for( int i = 0; i <= grad_size; i++ ) { \
 866                         float opacity = calculate_opacity(i, in_radius, out_radius, plugin->config.rate); \
 867                         float transparency = 1.0 - opacity; \
 868                         ((type*)r_table)[i] = (type)(out1 * opacity + in1 * transparency); \
 869                         ((type*)g_table)[i] = (type)(out2 * opacity + in2 * transparency); \
 870                         ((type*)b_table)[i] = (type)(out3 * opacity + in3 * transparency); \
 871                         ((type*)a_table)[i] = (type)(out4 * opacity + in4 * transparency); \
 872                 } \
 873         } \
 874  \
 875         for( int i = pkg->y1; i < pkg->y2; i++ ) { \
 876                 double y = half_h - i; \
 877                 type *gradient_row = (type*)plugin->gradient->get_rows()[i]; \
 878                 type *out_row = (type*)plugin->get_output()->get_rows()[i]; \
 879                 switch( plugin->config.shape ) { \
 880                 case GradientConfig::LINEAR: \
 881                         for( int j = 0; j < w; j++ ) { \
 882                                 double x = j - half_w; \
 883 /* Rotate by effect angle */ \
 884                                 int mag = (grad_size2 - (x * sin_angle + y * cos_angle)) + 0.5; \
 885 /* Get gradient value from these coords */ \
 886                                 if( sizeof(type) == 4 ) { \
 887                                         float opacity = calculate_opacity(mag, \
 888                                                 in_radius, out_radius, plugin->config.rate); \
 889                                         float transparency = 1.0 - opacity; \
 890                                         gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
 891                                         gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
 892                                         gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
 893                                         if( components == 4 ) \
 894                                                 gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
 895                                 } \
 896                                 else if( mag < 0 ) { \
 897                                         gradient_row[0] = in1; \
 898                                         gradient_row[1] = in2; \
 899                                         gradient_row[2] = in3; \
 900                                         if( components == 4 ) \
 901                                                 gradient_row[3] = in4; \
 902                                 } \
 903                                 else if( mag >= grad_size ) { \
 904                                         gradient_row[0] = out1; \
 905                                         gradient_row[1] = out2; \
 906                                         gradient_row[2] = out3; \
 907                                         if( components == 4 ) \
 908                                                 gradient_row[3] = out4; \
 909                                 } \
 910                                 else { \
 911                                         gradient_row[0] = ((type*)r_table)[mag]; \
 912                                         gradient_row[1] = ((type*)g_table)[mag]; \
 913                                         gradient_row[2] = ((type*)b_table)[mag]; \
 914                                         if( components == 4 ) \
 915                                                 gradient_row[3] = ((type*)a_table)[mag]; \
 916                                 } \
 917 /* no alpha output, Overlay mixed colormodels */ \
 918                                 if( gradient_cmodel != output_cmodel ) { \
 919                                         temp opacity = gradient_row[3]; \
 920                                         temp transparency = max - opacity; \
 921                                         out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
 922                                         out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
 923                                         out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
 924                                         out_row += 3; \
 925                                 } \
 926                                 gradient_row += components; \
 927                         } \
 928                         break; \
 929  \
 930                 case GradientConfig::RADIAL: \
 931                         for( int j = 0; j < w; j++ ) { \
 932                                 double x = j - center_x, y = i - center_y; \
 933                                 double magnitude = hypot(x, y); \
 934                                 int mag = (int)magnitude; \
 935                                 if( sizeof(type) == 4 ) { \
 936                                         float opacity = calculate_opacity(mag, \
 937                                                         in_radius, out_radius, plugin->config.rate); \
 938                                         float transparency = 1.0 - opacity; \
 939                                         gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
 940                                         gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
 941                                         gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
 942                                         if( components == 4 ) \
 943                                                 gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
 944                                 } \
 945                                 else { \
 946                                         gradient_row[0] = ((type*)r_table)[mag]; \
 947                                         gradient_row[1] = ((type*)g_table)[mag]; \
 948                                         gradient_row[2] = ((type*)b_table)[mag]; \
 949                                         if( components == 4 ) \
 950                                                 gradient_row[3] = ((type*)a_table)[mag]; \
 951                                 } \
 952 /* Overlay mixed colormodels onto output */ \
 953                                 if( gradient_cmodel != output_cmodel ) { \
 954                                         temp opacity = gradient_row[3]; \
 955                                         temp transparency = max - opacity; \
 956                                         out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
 957                                         out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
 958                                         out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
 959                                         out_row += 3; \
 960                                 } \
 961                                 gradient_row += components; \
 962                         } \
 963                         break; \
 964                 } \
 965         } \
 966 }
 967
 968 void GradientUnit::process_package(LoadPackage *package)
 969 {
 970         GradientPackage *pkg = (GradientPackage*)package;
 971         int h = plugin->input->get_h();
 972         int w = plugin->input->get_w();
 973         int grad_size = plugin->gradient_size;
 974         int half_w = w / 2;
 975         int half_h = h / 2;
 976         int in_radius = (int)(plugin->config.in_radius / 100 * grad_size);
 977         int out_radius = (int)(plugin->config.out_radius / 100 * grad_size);
 978         double sin_angle = sin(plugin->config.angle * (M_PI / 180));
 979         double cos_angle = cos(plugin->config.angle * (M_PI / 180));
 980         double center_x = plugin->config.center_x * w / 100;
 981         double center_y = plugin->config.center_y * h / 100;
 982         int gradient_cmodel = plugin->gradient->get_color_model();
 983         int output_cmodel = plugin->get_output()->get_color_model();
 984
 985         if( in_radius > out_radius ) {
 986                 int r = in_radius;
 987                 in_radius = out_radius;
 988                 out_radius = r;
 989         }
 990
 991         switch( gradient_cmodel ) {
 992         case BC_RGB888: {
 993                 int in1 = plugin->config.in_r;
 994                 int in2 = plugin->config.in_g;
 995                 int in3 = plugin->config.in_b;
 996                 int in4 = plugin->config.in_a;
 997                 int out1 = plugin->config.out_r;
 998                 int out2 = plugin->config.out_g;
 999                 int out3 = plugin->config.out_b;
1000                 int out4 = plugin->config.out_a;
1001                 CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1002                 break; }
1003
1004         case BC_RGBA8888: {
1005                 int in1 = plugin->config.in_r;
1006                 int in2 = plugin->config.in_g;
1007                 int in3 = plugin->config.in_b;
1008                 int in4 = plugin->config.in_a;
1009                 int out1 = plugin->config.out_r;
1010                 int out2 = plugin->config.out_g;
1011                 int out3 = plugin->config.out_b;
1012                 int out4 = plugin->config.out_a;
1013                 CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1014                 break; }
1015
1016         case BC_RGB_FLOAT: {
1017                 float in1 = (float)plugin->config.in_r / 0xff;
1018                 float in2 = (float)plugin->config.in_g / 0xff;
1019                 float in3 = (float)plugin->config.in_b / 0xff;
1020                 float in4 = (float)plugin->config.in_a / 0xff;
1021                 float out1 = (float)plugin->config.out_r / 0xff;
1022                 float out2 = (float)plugin->config.out_g / 0xff;
1023                 float out3 = (float)plugin->config.out_b / 0xff;
1024                 float out4 = (float)plugin->config.out_a / 0xff;
1025                 CREATE_GRADIENT(float, float, 3, 1.0)
1026                 break; }
1027
1028         case BC_RGBA_FLOAT: {
1029                 float in1 = (float)plugin->config.in_r / 0xff;
1030                 float in2 = (float)plugin->config.in_g / 0xff;
1031                 float in3 = (float)plugin->config.in_b / 0xff;
1032                 float in4 = (float)plugin->config.in_a / 0xff;
1033                 float out1 = (float)plugin->config.out_r / 0xff;
1034                 float out2 = (float)plugin->config.out_g / 0xff;
1035                 float out3 = (float)plugin->config.out_b / 0xff;
1036                 float out4 = (float)plugin->config.out_a / 0xff;
1037                 CREATE_GRADIENT(float, float, 4, 1.0)
1038                 break; }
1039
1040         case BC_YUV888: {
1041                 int in_r = plugin->config.in_r;
1042                 int in_g = plugin->config.in_g;
1043                 int in_b = plugin->config.in_b;
1044                 int in1, in2, in3, in4;
1045                 int out1, out2, out3, out4;
1046                 YUV::yuv.rgb_to_yuv_8(in_r,in_g,in_b, in1,in2,in3);
1047                 in4 = plugin->config.in_a;
1048                 int out_r = plugin->config.in_r;
1049                 int out_g = plugin->config.in_g;
1050                 int out_b = plugin->config.in_b;
1051                 YUV::yuv.rgb_to_yuv_8(out_r,out_g,out_b, out1,out2,out3);
1052                 out4 = plugin->config.out_a;
1053                 CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1054                 break; }
1055
1056         case BC_YUVA8888: {
1057                 int in_r = plugin->config.in_r;
1058                 int in_g = plugin->config.in_g;
1059                 int in_b = plugin->config.in_b;
1060                 int in1, in2, in3, in4;
1061                 int out1, out2, out3, out4;
1062                 YUV::yuv.rgb_to_yuv_8(in_r,in_g,in_b, in1,in2,in3);
1063                 in4 = plugin->config.in_a;
1064                 int out_r = plugin->config.in_r;
1065                 int out_g = plugin->config.in_g;
1066                 int out_b = plugin->config.in_b;
1067                 YUV::yuv.rgb_to_yuv_8(out_r,out_g,out_b, out1,out2,out3);
1068                 out4 = plugin->config.out_a;
1069                 CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1070                 break; }
1071         }
1072 }
1073
1074
1075 GradientServer::GradientServer(GradientMain *plugin,
1076         int total_clients, int total_packages)
1077  : LoadServer(total_clients, total_packages)
1078 {
1079         this->plugin = plugin;
1080 }
1081
1082 void GradientServer::init_packages()
1083 {
1084         for( int i = 0; i < get_total_packages(); i++ ) {
1085                 GradientPackage *package = (GradientPackage*)get_package(i);
1086                 package->y1 = plugin->input->get_h() *
1087                         i /
1088                         get_total_packages();
1089                 package->y2 = plugin->input->get_h() *
1090                         (i + 1) /
1091                         get_total_packages();
1092         }
1093 }
1094
1095 LoadClient* GradientServer::new_client()
1096 {
1097         return new GradientUnit(this, plugin);
1098 }
1099
1100 LoadPackage* GradientServer::new_package()
1101 {
1102         return new GradientPackage;
1103 }
1104