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 xS(100)
 132 #define COLOR_H yS(30)
 133
 134 GradientWindow::GradientWindow(GradientMain *plugin)
 135  : PluginClientWindow(plugin, xS(350), yS(290), xS(350), yS(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 xs10 = xS(10);
 153         int ys10 = yS(10);
 154         int margin = plugin->get_theme()->widget_border;
 155         int x = xs10, y = ys10;
 156         BC_Title *title;
 157
 158         add_subwindow(title = new BC_Title(x, y, _("Shape:")));
 159         add_subwindow(shape = new GradientShape(plugin, this,
 160                         x + title->get_w() + margin, y));
 161         shape->create_objects();
 162         y += shape->get_h() + margin;
 163         shape_x = x;
 164         shape_y = y;
 165         y += BC_Pot::calculate_h() + margin;
 166
 167         add_subwindow(title = new BC_Title(x, y, _("Rate:")));
 168         add_subwindow(rate = new GradientRate(plugin,
 169                         x + title->get_w() + margin, y));
 170         rate->create_objects();
 171         y += rate->get_h() + 3*margin;
 172
 173         int x1 = x, y1 = y;
 174         BC_Title *title1;
 175         add_subwindow(title1 = new BC_Title(x, y, _("Inner radius:")));
 176         y += BC_Slider::get_span(0) + margin;
 177         BC_Title *title2;
 178         add_subwindow(title2 = new BC_Title(x, y, _("Outer radius:")));
 179
 180         y = y1;
 181         x += MAX(title1->get_w(), title2->get_w()) + margin;
 182         add_subwindow(in_radius = new GradientInRadius(plugin, x, y));
 183         y += in_radius->get_h() + margin;
 184         add_subwindow(out_radius = new GradientOutRadius(plugin, x, y));
 185         y += out_radius->get_h() + 3*margin;
 186
 187         x = x1;
 188         add_subwindow(title1 = new BC_Title(x, y, _("Inner Color:")));
 189         y1 = y + COLOR_H+4 + 2*margin;
 190         add_subwindow(title2 = new BC_Title(x, y1, _("Outer Color:")));
 191         int x2 = x + MAX(title1->get_w(), title2->get_w()) + margin;
 192         int in_rgb = plugin->config.get_in_color();
 193         int in_a = plugin->config.in_a;
 194         add_subwindow(in_color = new GradientInColorButton(plugin, this, x2+2, y+2, in_rgb, in_a));
 195         draw_3d_border(x2,y, COLOR_W+4,COLOR_H+4, 1);
 196         in_color->create_objects();
 197
 198         int out_rgb = plugin->config.get_out_color();
 199         int out_a = plugin->config.out_a;
 200         add_subwindow(out_color = new GradientOutColorButton(plugin, this, x2+2, y1+2, out_rgb, out_a));
 201         draw_3d_border(x2,y1, COLOR_W+4,COLOR_H+4, 1);
 202         out_color->create_objects();
 203         y = y1 + COLOR_H+4 + 3*margin;
 204
 205         add_subwindow(reset = new GradientReset(plugin, this, x, y));
 206         update_shape();
 207         show_window();
 208 }
 209
 210 void GradientWindow::update_shape()
 211 {
 212         int x = shape_x, y = shape_y;
 213
 214         if( plugin->config.shape == GradientConfig::LINEAR ) {
 215                 delete center_x_title;  center_x_title = 0;
 216                 delete center_y_title;  center_y_title = 0;
 217                 delete center_x;  center_x = 0;
 218                 delete center_y;  center_y = 0;
 219                 if( !angle ) {
 220                         add_subwindow(angle_title = new BC_Title(x, y, _("Angle:")));
 221                         add_subwindow(angle = new GradientAngle(plugin, x + angle_title->get_w() + xS(10), y));
 222                 }
 223         }
 224         else {
 225                 delete angle_title;  angle_title = 0;
 226                 delete angle;  angle = 0;
 227                 if( !center_x ) {
 228                         add_subwindow(center_x_title = new BC_Title(x, y, _("Center X:")));
 229                         add_subwindow(center_x = new GradientCenterX(plugin,
 230                                 x + center_x_title->get_w() + xS(10), y));
 231                         x += center_x_title->get_w() + xS(10) + center_x->get_w() + xS(10);
 232                         add_subwindow(center_y_title = new BC_Title(x, y, _("Center Y:")));
 233                         add_subwindow(center_y = new GradientCenterY(plugin,
 234                                 x + center_y_title->get_w() + xS(10), y));
 235                 }
 236         }
 237         show_window();
 238 }
 239
 240 void GradientWindow::done_event(int result)
 241 {
 242         in_color->close_picker();
 243         out_color->close_picker();
 244 }
 245
 246 GradientShape::GradientShape(GradientMain *plugin, GradientWindow *gui, int x, int y)
 247  : BC_PopupMenu(x, y, xS(100), to_text(plugin->config.shape), 1)
 248 {
 249         this->plugin = plugin;
 250         this->gui = gui;
 251 }
 252 void GradientShape::create_objects()
 253 {
 254         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 255         add_item(new BC_MenuItem(to_text(GradientConfig::RADIAL)));
 256 }
 257 char* GradientShape::to_text(int shape)
 258 {
 259         switch( shape ) {
 260         case GradientConfig::LINEAR:    return _("Linear");
 261         }
 262         return _("Radial");
 263 }
 264 int GradientShape::from_text(char *text)
 265 {
 266         if( !strcmp(text, to_text(GradientConfig::LINEAR)) )
 267                 return GradientConfig::LINEAR;
 268         return GradientConfig::RADIAL;
 269 }
 270 int GradientShape::handle_event()
 271 {
 272         plugin->config.shape = from_text(get_text());
 273         gui->update_shape();
 274         plugin->send_configure_change();
 275         return 1;
 276 }
 277
 278
 279 GradientCenterX::GradientCenterX(GradientMain *plugin, int x, int y)
 280  : BC_FPot(x, y, plugin->config.center_x, 0, xS(100))
 281 {
 282         this->plugin = plugin;
 283 }
 284 int GradientCenterX::handle_event()
 285 {
 286         plugin->config.center_x = get_value();
 287         plugin->send_configure_change();
 288         return 1;
 289 }
 290
 291
 292 GradientCenterY::GradientCenterY(GradientMain *plugin, int x, int y)
 293  : BC_FPot(x, y, plugin->config.center_y, 0, xS(100))
 294 {
 295         this->plugin = plugin;
 296 }
 297
 298 int GradientCenterY::handle_event()
 299 {
 300         plugin->config.center_y = get_value();
 301         plugin->send_configure_change();
 302         return 1;
 303 }
 304
 305
 306 GradientAngle::GradientAngle(GradientMain *plugin, int x, int y)
 307  : BC_FPot(x, y, plugin->config.angle, -180, 180)
 308 {
 309         this->plugin = plugin;
 310 }
 311
 312 int GradientAngle::handle_event()
 313 {
 314         plugin->config.angle = get_value();
 315         plugin->send_configure_change();
 316         return 1;
 317 }
 318
 319
 320 GradientRate::GradientRate(GradientMain *plugin, int x, int y)
 321  : BC_PopupMenu(x, y, xS(100), to_text(plugin->config.rate), 1)
 322 {
 323         this->plugin = plugin;
 324 }
 325 void GradientRate::create_objects()
 326 {
 327         add_item(new BC_MenuItem(to_text(GradientConfig::LINEAR)));
 328         add_item(new BC_MenuItem(to_text(GradientConfig::LOG)));
 329         add_item(new BC_MenuItem(to_text(GradientConfig::SQUARE)));
 330 }
 331 char* GradientRate::to_text(int shape)
 332 {
 333         switch( shape ) {
 334         case GradientConfig::LINEAR:    return _("Linear");
 335         case GradientConfig::LOG:       return _("Log");
 336         }
 337         return _("Square");
 338 }
 339 int GradientRate::from_text(char *text)
 340 {
 341         if( !strcmp(text, to_text(GradientConfig::LINEAR)) )
 342                 return GradientConfig::LINEAR;
 343         if( !strcmp(text, to_text(GradientConfig::LOG)) )
 344                 return GradientConfig::LOG;
 345         return GradientConfig::SQUARE;
 346 }
 347 int GradientRate::handle_event()
 348 {
 349         plugin->config.rate = from_text(get_text());
 350         plugin->send_configure_change();
 351         return 1;
 352 }
 353
 354
 355 GradientInRadius::GradientInRadius(GradientMain *plugin, int x, int y)
 356  : BC_FSlider(x, y, 0, xS(200), yS(200),
 357                 0.f, 100.f, (float)plugin->config.in_radius)
 358 {
 359         this->plugin = plugin;
 360 }
 361
 362 int GradientInRadius::handle_event()
 363 {
 364         plugin->config.in_radius = get_value();
 365         plugin->send_configure_change();
 366         return 1;
 367 }
 368
 369
 370 GradientOutRadius::GradientOutRadius(GradientMain *plugin, int x, int y)
 371  : BC_FSlider(x, y, 0, xS(200), yS(200),
 372                 0.f, 100.f, (float)plugin->config.out_radius)
 373 {
 374         this->plugin = plugin;
 375 }
 376
 377 int GradientOutRadius::handle_event()
 378 {
 379         plugin->config.out_radius = get_value();
 380         plugin->send_configure_change();
 381         return 1;
 382 }
 383
 384
 385 GradientInColorButton::GradientInColorButton(GradientMain *plugin, GradientWindow *gui,
 386                 int x, int y, int color, int alpha)
 387  : ColorBoxButton(_("Inner color:"), x, y, COLOR_W, COLOR_H, color, alpha, 1)
 388 {
 389         this->plugin = plugin;
 390         this->gui = gui;
 391 }
 392
 393 GradientInColorButton::~GradientInColorButton()
 394 {
 395 }
 396
 397 void GradientInColorButton::handle_done_event(int result)
 398 {
 399         if( result ) {
 400                 gui->lock_window("GradientInColorButton::handle_done_event");
 401                 update_gui(orig_color, orig_alpha);
 402                 gui->unlock_window();
 403                 handle_new_color(orig_color, orig_alpha);
 404         }
 405 }
 406
 407 int GradientInColorButton::handle_new_color(int color, int alpha)
 408 {
 409         plugin->config.in_r = (color & 0xff0000) >> 16;
 410         plugin->config.in_g = (color & 0xff00) >> 8;
 411         plugin->config.in_b = (color & 0xff);
 412         plugin->config.in_a = alpha;
 413         plugin->send_configure_change();
 414         return 1;
 415 }
 416
 417 GradientOutColorButton::GradientOutColorButton(GradientMain *plugin, GradientWindow *gui,
 418                 int x, int y, int color, int alpha)
 419  : ColorBoxButton(_("Outer color:"), x, y, COLOR_W, COLOR_H, color, alpha, 1)
 420 {
 421         this->plugin = plugin;
 422         this->gui = gui;
 423 }
 424
 425 GradientOutColorButton::~GradientOutColorButton()
 426 {
 427 }
 428
 429 void GradientOutColorButton::handle_done_event(int result)
 430 {
 431         if( result ) {
 432                 gui->lock_window("GradientOutColorButton::handle_done_event");
 433                 update_gui(orig_color, orig_alpha);
 434                 gui->unlock_window();
 435                 handle_new_color(orig_color, orig_alpha);
 436         }
 437 }
 438
 439 int GradientOutColorButton::handle_new_color(int color, int alpha)
 440 {
 441         plugin->config.out_r = (color & 0xff0000) >> 16;
 442         plugin->config.out_g = (color & 0xff00) >> 8;
 443         plugin->config.out_b = (color & 0xff);
 444         plugin->config.out_a = alpha;
 445         plugin->send_configure_change();
 446         return 1;
 447 }
 448
 449
 450 GradientReset::GradientReset(GradientMain *plugin, GradientWindow *window, int x, int y)
 451  : BC_GenericButton(x, y, _("Reset"))
 452 {
 453         this->plugin = plugin;
 454         this->window = window;
 455 }
 456
 457 int GradientReset::handle_event()
 458 {
 459         plugin->config.reset();
 460         window->update_gui();
 461         plugin->send_configure_change();
 462         return 1;
 463 }
 464
 465
 466 GradientMain::GradientMain(PluginServer *server)
 467  : PluginVClient(server)
 468 {
 469
 470         need_reconfigure = 1;
 471         gradient = 0;
 472         engine = 0;
 473         overlayer = 0;
 474         table = 0;
 475         table_size = 0;
 476 }
 477
 478 GradientMain::~GradientMain()
 479 {
 480         delete [] table;
 481         delete gradient;
 482         delete engine;
 483         delete overlayer;
 484 }
 485
 486 const char* GradientMain::plugin_title() { return N_("Gradient"); }
 487 int GradientMain::is_realtime() { return 1; }
 488
 489
 490 NEW_WINDOW_MACRO(GradientMain, GradientWindow)
 491
 492 LOAD_CONFIGURATION_MACRO(GradientMain, GradientConfig)
 493
 494 int GradientMain::is_synthesis()
 495 {
 496         return 1;
 497 }
 498
 499
 500 int GradientMain::process_buffer(VFrame *frame,
 501         int64_t start_position,
 502         double frame_rate)
 503 {
 504         this->input = frame;
 505         this->output = frame;
 506         float fw = input->get_w(), fh = input->get_h();
 507         gradient_size = hypotf(fw, fh);
 508         need_reconfigure = load_configuration();
 509
 510         int need_alpha = config.in_a != 0xff || config.out_a != 0xff;
 511         if( need_alpha )
 512                 read_frame(frame, 0, start_position, frame_rate, get_use_opengl());
 513         if( get_use_opengl() ) return run_opengl();
 514
 515         int gradient_cmodel = input->get_color_model();
 516         if( need_alpha && BC_CModels::components(gradient_cmodel) == 3 ) {
 517                 switch( gradient_cmodel ) {
 518                 case BC_RGB888:     gradient_cmodel = BC_RGBA8888;    break;
 519                 case BC_YUV888:     gradient_cmodel = BC_YUVA8888;    break;
 520                 case BC_RGB_FLOAT:  gradient_cmodel = BC_RGBA_FLOAT;  break;
 521                 }
 522         }
 523
 524         int bpp = BC_CModels::calculate_pixelsize(gradient_cmodel);
 525         int comps = BC_CModels::components(gradient_cmodel);
 526         int grad_size1 = gradient_size + 1;
 527         int sz = 4 * (bpp / comps) * grad_size1;
 528         if( table_size < sz ) {
 529                 delete [] table;  table = 0;
 530         }
 531         if( !table ) {
 532                 table = new uint8_t[table_size = sz];
 533                 need_reconfigure = 1;
 534         }
 535
 536         if( gradient && gradient->get_color_model() != gradient_cmodel ) {
 537                 delete gradient;
 538                 gradient = 0;
 539         }
 540
 541         if( !gradient )
 542                 gradient = new VFrame(input->get_w(), input->get_h(),
 543                         gradient_cmodel, 0);
 544
 545         if( !engine )
 546                 engine = new GradientServer(this,
 547                         get_project_smp() + 1, get_project_smp() + 1);
 548         engine->process_packages();
 549
 550 // Use overlay routine in GradientServer if mismatched colormodels
 551         if( gradient->get_color_model() == output->get_color_model() ) {
 552                 if( !overlayer ) overlayer = new OverlayFrame(get_project_smp() + 1);
 553                 overlayer->overlay(output, gradient,
 554                         0, 0, input->get_w(), input->get_h(),
 555                         0, 0, input->get_w(), input->get_h(),
 556                         1.0, TRANSFER_NORMAL, NEAREST_NEIGHBOR);
 557         }
 558
 559         return 0;
 560 }
 561
 562
 563 void GradientMain::update_gui()
 564 {
 565         if( !thread ) return;
 566         if( !load_configuration() ) return;
 567         thread->window->lock_window("GradientMain::update_gui");
 568         if( load_configuration() ) {
 569                 GradientWindow *window = (GradientWindow *)thread->window;
 570                 window->update_gui();
 571                 window->flush();
 572         }
 573         thread->window->unlock_window();
 574 }
 575
 576 void GradientWindow::update_gui()
 577 {
 578         GradientConfig &config = plugin->config;
 579         rate->set_text(GradientRate::to_text(config.rate));
 580         in_radius->update(config.in_radius);
 581         out_radius->update(config.out_radius);
 582         shape->set_text(GradientShape::to_text(config.shape));
 583         if( angle ) angle->update(config.angle);
 584         if( center_x ) center_x->update(config.center_x);
 585         if( center_y ) center_y->update(config.center_y);
 586         update_shape();
 587         in_color->update_gui(config.get_in_color(), config.in_a);
 588         out_color->update_gui(config.get_out_color(), config.out_a);
 589 }
 590
 591
 592 void GradientMain::save_data(KeyFrame *keyframe)
 593 {
 594         FileXML output;
 595
 596 // cause data to be stored directly in text
 597         output.set_shared_output(keyframe->xbuf);
 598         output.tag.set_title("GRADIENT");
 599
 600         output.tag.set_property("ANGLE", config.angle);
 601         output.tag.set_property("IN_RADIUS", config.in_radius);
 602         output.tag.set_property("OUT_RADIUS", config.out_radius);
 603         output.tag.set_property("IN_R", config.in_r);
 604         output.tag.set_property("IN_G", config.in_g);
 605         output.tag.set_property("IN_B", config.in_b);
 606         output.tag.set_property("IN_A", config.in_a);
 607         output.tag.set_property("OUT_R", config.out_r);
 608         output.tag.set_property("OUT_G", config.out_g);
 609         output.tag.set_property("OUT_B", config.out_b);
 610         output.tag.set_property("OUT_A", config.out_a);
 611         output.tag.set_property("SHAPE", config.shape);
 612         output.tag.set_property("RATE", config.rate);
 613         output.tag.set_property("CENTER_X", config.center_x);
 614         output.tag.set_property("CENTER_Y", config.center_y);
 615         output.append_tag();
 616         output.tag.set_title("/GRADIENT");
 617         output.append_tag();
 618         output.append_newline();
 619         output.terminate_string();
 620 }
 621
 622 void GradientMain::read_data(KeyFrame *keyframe)
 623 {
 624         FileXML input;
 625
 626         input.set_shared_input(keyframe->xbuf);
 627
 628         int result = 0;
 629
 630         while( !(result = input.read_tag()) ) {
 631                 if( input.tag.title_is("GRADIENT") ) {
 632                         config.angle = input.tag.get_property("ANGLE", config.angle);
 633                         config.rate = input.tag.get_property("RATE", config.rate);
 634                         config.in_radius = input.tag.get_property("IN_RADIUS", config.in_radius);
 635                         config.out_radius = input.tag.get_property("OUT_RADIUS", config.out_radius);
 636                         config.in_r = input.tag.get_property("IN_R", config.in_r);
 637                         config.in_g = input.tag.get_property("IN_G", config.in_g);
 638                         config.in_b = input.tag.get_property("IN_B", config.in_b);
 639                         config.in_a = input.tag.get_property("IN_A", config.in_a);
 640                         config.out_r = input.tag.get_property("OUT_R", config.out_r);
 641                         config.out_g = input.tag.get_property("OUT_G", config.out_g);
 642                         config.out_b = input.tag.get_property("OUT_B", config.out_b);
 643                         config.out_a = input.tag.get_property("OUT_A", config.out_a);
 644                         config.shape = input.tag.get_property("SHAPE", config.shape);
 645                         config.center_x = input.tag.get_property("CENTER_X", config.center_x);
 646                         config.center_y = input.tag.get_property("CENTER_Y", config.center_y);
 647                 }
 648         }
 649 }
 650
 651 int GradientMain::handle_opengl()
 652 {
 653 #ifdef HAVE_GL
 654         const char *head_frag =
 655                 "uniform sampler2D tex;\n"
 656                 "uniform vec2 tex_dimensions;\n"
 657                 "uniform vec2 center;\n"
 658                 "uniform vec2 angle;\n"
 659                 "uniform float gradient_size;\n"
 660                 "uniform vec4 out_color;\n"
 661                 "uniform vec4 in_color;\n"
 662                 "uniform float in_radius;\n"
 663                 "uniform float out_radius;\n"
 664                 "uniform float radius_diff;\n"
 665                 "\n"
 666                 "void main()\n"
 667                 "{\n"
 668                 "       vec2 out_coord = gl_TexCoord[0].st;\n"
 669                 "       vec2 in_coord = out_coord * tex_dimensions - center;\n";
 670
 671         const char *linear_shape =
 672                 "       float mag = 0.5 + dot(in_coord,angle)/gradient_size;\n";
 673
 674         const char *radial_shape =
 675                 "       float mag = length(in_coord)/gradient_size;\n";
 676
 677 // No clamp function in NVidia
 678         const char *linear_rate =
 679                 "       mag = min(max(mag, in_radius), out_radius);\n"
 680                 "       float opacity = (mag - in_radius) / radius_diff;\n";
 681
 682 // NVidia warns about exp, but exp is in the GLSL spec.
 683         const char *log_rate =
 684                 "       mag = max(mag, in_radius);\n"
 685                 "       float opacity = 1.0 - \n"
 686                 "               exp(1.0 * -(mag - in_radius) / radius_diff);\n";
 687
 688         const char *square_rate =
 689                 "       mag = min(max(mag, in_radius), out_radius);\n"
 690                 "       float opacity = pow((mag - in_radius) / radius_diff, 2.0);\n"
 691                 "       opacity = min(opacity, 1.0);\n";
 692
 693         const char *tail_frag =
 694                 "       vec4 color = mix(in_color, out_color, opacity);\n"
 695                 "       vec4 bg_color = texture2D(tex, out_coord);\n"
 696                 "       gl_FragColor.rgb = mix(bg_color.rgb, color.rgb, color.a);\n"
 697                 "       gl_FragColor.a = mix(bg_color.a, 1., color.a);\n"
 698                 "}\n";
 699
 700
 701         const char *shader_stack[16];
 702         memset(shader_stack,0, sizeof(shader_stack));
 703         int current_shader = 0;
 704
 705         shader_stack[current_shader++] = head_frag;
 706
 707         const char *shape_frag = 0;
 708         switch( config.shape ) {
 709         case GradientConfig::LINEAR:
 710                 shape_frag = linear_shape;
 711                 break;
 712         default:
 713                 shape_frag = radial_shape;
 714                 break;
 715         }
 716         if( shape_frag )
 717                 shader_stack[current_shader++] = shape_frag;
 718
 719         const char *rate_frag = 0;
 720         switch( config.rate ) {
 721         case GradientConfig::LINEAR:
 722                 rate_frag = linear_rate;
 723                 break;
 724         case GradientConfig::LOG:
 725                 rate_frag = log_rate;
 726                 break;
 727         case GradientConfig::SQUARE:
 728                 rate_frag = square_rate;
 729                 break;
 730         }
 731         if( rate_frag )
 732                 shader_stack[current_shader++] = rate_frag;
 733
 734         shader_stack[current_shader++] = tail_frag;
 735
 736 // Force frame to create texture without copying to it if full alpha.
 737          if( config.in_a >= 0xff && config.out_a >= 0xff )
 738                 get_output()->set_opengl_state(VFrame::TEXTURE);
 739         get_output()->to_texture();
 740         get_output()->enable_opengl();
 741         get_output()->init_screen();
 742         get_output()->bind_texture(0);
 743
 744         shader_stack[current_shader] = 0;
 745         unsigned int shader = VFrame::make_shader(shader_stack);
 746         if( shader > 0 ) {
 747                 glUseProgram(shader);
 748                 float w = get_output()->get_w();
 749                 float h = get_output()->get_h();
 750                 glUniform1i(glGetUniformLocation(shader, "tex"), 0);
 751                 float texture_w = get_output()->get_texture_w();
 752                 float texture_h = get_output()->get_texture_h();
 753                 glUniform2f(glGetUniformLocation(shader, "tex_dimensions"),
 754                         texture_w, texture_h);
 755                 float u = config.shape == GradientConfig::LINEAR ?
 756                         0.5f : config.center_x/100.f;
 757                 float v = config.shape == GradientConfig::LINEAR ?
 758                         0.5f : config.center_y/100.f;
 759                 glUniform2f(glGetUniformLocation(shader, "center"),
 760                         u * w, v * h);
 761                 glUniform1f(glGetUniformLocation(shader, "gradient_size"),
 762                         gradient_size);
 763                 glUniform2f(glGetUniformLocation(shader, "angle"),
 764                         -sin(config.angle * (M_PI / 180)), cos(config.angle * (M_PI / 180)));
 765
 766                 float in_radius = (float)config.in_radius/100;
 767                 float out_radius = (float)config.out_radius/100;
 768                 if( in_radius > out_radius ) {
 769                         float r = in_radius;
 770                         in_radius = out_radius;
 771                         out_radius = r;
 772                 }
 773                 glUniform1f(glGetUniformLocation(shader, "in_radius"), in_radius);
 774                 glUniform1f(glGetUniformLocation(shader, "out_radius"), out_radius);
 775                 glUniform1f(glGetUniformLocation(shader, "radius_diff"),
 776                         out_radius - in_radius);
 777
 778                 float in_r  = (float)config.in_r  / 0xff;
 779                 float in_g  = (float)config.in_g  / 0xff;
 780                 float in_b  = (float)config.in_b  / 0xff;
 781                 float in_a  = (float)config.in_a  / 0xff;
 782                 float out_r = (float)config.out_r / 0xff;
 783                 float out_g = (float)config.out_g / 0xff;
 784                 float out_b = (float)config.out_b / 0xff;
 785                 float out_a = (float)config.out_a / 0xff;
 786                 switch( get_output()->get_color_model() ) {
 787                 case BC_YUV888:
 788                 case BC_YUVA8888: {
 789                         float in1, in2, in3, in4;
 790                         float out1, out2, out3, out4;
 791                         YUV::yuv.rgb_to_yuv_f(in_r,in_g,in_b, in1,in2,in3);
 792                         in2  += 0.5;  in3 += 0.5;   in4 = in_a;
 793                         YUV::yuv.rgb_to_yuv_f(out_r,out_g,out_b, out1,out2,out3);
 794                         out2 += 0.5;  out3 += 0.5;  out4 = out_a;
 795                         glUniform4f(glGetUniformLocation(shader, "out_color"),
 796                                 out1, out2, out3, out4);
 797                         glUniform4f(glGetUniformLocation(shader, "in_color"),
 798                                 in1, in2, in3, in4);
 799                         break; }
 800
 801                 default: {
 802                         glUniform4f(glGetUniformLocation(shader, "out_color"),
 803                                 out_r, out_g, out_b, out_a);
 804                         glUniform4f(glGetUniformLocation(shader, "in_color"),
 805                                 in_r, in_g, in_b, in_a);
 806                         break; }
 807                 }
 808         }
 809
 810         get_output()->draw_texture();
 811         glUseProgram(0);
 812         get_output()->set_opengl_state(VFrame::SCREEN);
 813
 814 #endif
 815         return 0;
 816 }
 817
 818
 819 GradientPackage::GradientPackage()
 820  : LoadPackage()
 821 {
 822 }
 823
 824 GradientUnit::GradientUnit(GradientServer *server, GradientMain *plugin)
 825  : LoadClient(server)
 826 {
 827         this->plugin = plugin;
 828         this->server = server;
 829 }
 830
 831
 832 static float calculate_opacity(float mag,
 833                 float in_radius, float out_radius, int rate)
 834 {
 835         float mag_diff = mag - in_radius;
 836         float radius_diff = out_radius - in_radius;
 837         if( !radius_diff ) return 1.0;
 838         float opacity = 0.0;
 839         switch( rate ) {
 840         case GradientConfig::LINEAR:
 841                 opacity = mag < in_radius ? 0.0 : mag >= out_radius ? 1.0 :
 842                                 mag_diff / radius_diff;
 843                 break;
 844         case GradientConfig::LOG:
 845                 opacity = mag < in_radius ? 0.0 : // Let this one decay beyond out_radius
 846                                 1 - exp(1.0 * -mag_diff / radius_diff);
 847                 break;
 848         case GradientConfig::SQUARE:
 849                 opacity = mag < in_radius ? 0.0 : mag >= out_radius ? 1.0 :
 850                                 powf(mag_diff / radius_diff, 2.);
 851                 break;
 852         }
 853         return opacity;
 854 }
 855
 856 #define CREATE_GRADIENT(type, temp, components, max) { \
 857 /* Synthesize linear gradient for lookups */ \
 858         int grad_size = plugin->gradient_size; \
 859         int n = sizeof(type) * (grad_size+1); \
 860         void *r_table = (void*) (plugin->table + 0*n); \
 861         void *g_table = (void*) (plugin->table + 1*n); \
 862         void *b_table = (void*) (plugin->table + 2*n); \
 863         void *a_table = (void*) (plugin->table + 3*n); \
 864         double grad_size2 = grad_size / 2.; \
 865  \
 866         if( plugin->need_reconfigure ) { \
 867                 for( int i = 0; i <= grad_size; i++ ) { \
 868                         float opacity = calculate_opacity(i, in_radius, out_radius, plugin->config.rate); \
 869                         float transparency = 1.0 - opacity; \
 870                         ((type*)r_table)[i] = (type)(out1 * opacity + in1 * transparency); \
 871                         ((type*)g_table)[i] = (type)(out2 * opacity + in2 * transparency); \
 872                         ((type*)b_table)[i] = (type)(out3 * opacity + in3 * transparency); \
 873                         ((type*)a_table)[i] = (type)(out4 * opacity + in4 * transparency); \
 874                 } \
 875         } \
 876  \
 877         for( int i = pkg->y1; i < pkg->y2; i++ ) { \
 878                 double y = half_h - i; \
 879                 type *gradient_row = (type*)plugin->gradient->get_rows()[i]; \
 880                 type *out_row = (type*)plugin->get_output()->get_rows()[i]; \
 881                 switch( plugin->config.shape ) { \
 882                 case GradientConfig::LINEAR: \
 883                         for( int j = 0; j < w; j++ ) { \
 884                                 double x = j - half_w; \
 885 /* Rotate by effect angle */ \
 886                                 int mag = (grad_size2 - (x * sin_angle + y * cos_angle)) + 0.5; \
 887 /* Get gradient value from these coords */ \
 888                                 if( sizeof(type) == 4 ) { \
 889                                         float opacity = calculate_opacity(mag, \
 890                                                 in_radius, out_radius, plugin->config.rate); \
 891                                         float transparency = 1.0 - opacity; \
 892                                         gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
 893                                         gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
 894                                         gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
 895                                         if( components == 4 ) \
 896                                                 gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
 897                                 } \
 898                                 else if( mag < 0 ) { \
 899                                         gradient_row[0] = in1; \
 900                                         gradient_row[1] = in2; \
 901                                         gradient_row[2] = in3; \
 902                                         if( components == 4 ) \
 903                                                 gradient_row[3] = in4; \
 904                                 } \
 905                                 else if( mag >= grad_size ) { \
 906                                         gradient_row[0] = out1; \
 907                                         gradient_row[1] = out2; \
 908                                         gradient_row[2] = out3; \
 909                                         if( components == 4 ) \
 910                                                 gradient_row[3] = out4; \
 911                                 } \
 912                                 else { \
 913                                         gradient_row[0] = ((type*)r_table)[mag]; \
 914                                         gradient_row[1] = ((type*)g_table)[mag]; \
 915                                         gradient_row[2] = ((type*)b_table)[mag]; \
 916                                         if( components == 4 ) \
 917                                                 gradient_row[3] = ((type*)a_table)[mag]; \
 918                                 } \
 919 /* no alpha output, Overlay mixed colormodels */ \
 920                                 if( gradient_cmodel != output_cmodel ) { \
 921                                         temp opacity = gradient_row[3]; \
 922                                         temp transparency = max - opacity; \
 923                                         out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
 924                                         out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
 925                                         out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
 926                                         out_row += 3; \
 927                                 } \
 928                                 gradient_row += components; \
 929                         } \
 930                         break; \
 931  \
 932                 case GradientConfig::RADIAL: \
 933                         for( int j = 0; j < w; j++ ) { \
 934                                 double x = j - center_x, y = i - center_y; \
 935                                 double magnitude = hypot(x, y); \
 936                                 int mag = (int)magnitude; \
 937                                 if( sizeof(type) == 4 ) { \
 938                                         float opacity = calculate_opacity(mag, \
 939                                                         in_radius, out_radius, plugin->config.rate); \
 940                                         float transparency = 1.0 - opacity; \
 941                                         gradient_row[0] = (type)(out1 * opacity + in1 * transparency); \
 942                                         gradient_row[1] = (type)(out2 * opacity + in2 * transparency); \
 943                                         gradient_row[2] = (type)(out3 * opacity + in3 * transparency); \
 944                                         if( components == 4 ) \
 945                                                 gradient_row[3] = (type)(out4 * opacity + in4 * transparency); \
 946                                 } \
 947                                 else { \
 948                                         gradient_row[0] = ((type*)r_table)[mag]; \
 949                                         gradient_row[1] = ((type*)g_table)[mag]; \
 950                                         gradient_row[2] = ((type*)b_table)[mag]; \
 951                                         if( components == 4 ) \
 952                                                 gradient_row[3] = ((type*)a_table)[mag]; \
 953                                 } \
 954 /* Overlay mixed colormodels onto output */ \
 955                                 if( gradient_cmodel != output_cmodel ) { \
 956                                         temp opacity = gradient_row[3]; \
 957                                         temp transparency = max - opacity; \
 958                                         out_row[0] = (transparency * out_row[0] + opacity * gradient_row[0]) / max; \
 959                                         out_row[1] = (transparency * out_row[1] + opacity * gradient_row[1]) / max; \
 960                                         out_row[2] = (transparency * out_row[2] + opacity * gradient_row[2]) / max; \
 961                                         out_row += 3; \
 962                                 } \
 963                                 gradient_row += components; \
 964                         } \
 965                         break; \
 966                 } \
 967         } \
 968 }
 969
 970 void GradientUnit::process_package(LoadPackage *package)
 971 {
 972         GradientPackage *pkg = (GradientPackage*)package;
 973         int h = plugin->input->get_h();
 974         int w = plugin->input->get_w();
 975         int grad_size = plugin->gradient_size;
 976         int half_w = w / 2;
 977         int half_h = h / 2;
 978         int in_radius = (int)(plugin->config.in_radius / 100 * grad_size);
 979         int out_radius = (int)(plugin->config.out_radius / 100 * grad_size);
 980         double sin_angle = sin(plugin->config.angle * (M_PI / 180));
 981         double cos_angle = cos(plugin->config.angle * (M_PI / 180));
 982         double center_x = plugin->config.center_x * w / 100;
 983         double center_y = plugin->config.center_y * h / 100;
 984         int gradient_cmodel = plugin->gradient->get_color_model();
 985         int output_cmodel = plugin->get_output()->get_color_model();
 986
 987         if( in_radius > out_radius ) {
 988                 int r = in_radius;
 989                 in_radius = out_radius;
 990                 out_radius = r;
 991         }
 992
 993         switch( gradient_cmodel ) {
 994         case BC_RGB888: {
 995                 int in1 = plugin->config.in_r;
 996                 int in2 = plugin->config.in_g;
 997                 int in3 = plugin->config.in_b;
 998                 int in4 = plugin->config.in_a;
 999                 int out1 = plugin->config.out_r;
1000                 int out2 = plugin->config.out_g;
1001                 int out3 = plugin->config.out_b;
1002                 int out4 = plugin->config.out_a;
1003                 CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1004                 break; }
1005
1006         case BC_RGBA8888: {
1007                 int in1 = plugin->config.in_r;
1008                 int in2 = plugin->config.in_g;
1009                 int in3 = plugin->config.in_b;
1010                 int in4 = plugin->config.in_a;
1011                 int out1 = plugin->config.out_r;
1012                 int out2 = plugin->config.out_g;
1013                 int out3 = plugin->config.out_b;
1014                 int out4 = plugin->config.out_a;
1015                 CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1016                 break; }
1017
1018         case BC_RGB_FLOAT: {
1019                 float in1 = (float)plugin->config.in_r / 0xff;
1020                 float in2 = (float)plugin->config.in_g / 0xff;
1021                 float in3 = (float)plugin->config.in_b / 0xff;
1022                 float in4 = (float)plugin->config.in_a / 0xff;
1023                 float out1 = (float)plugin->config.out_r / 0xff;
1024                 float out2 = (float)plugin->config.out_g / 0xff;
1025                 float out3 = (float)plugin->config.out_b / 0xff;
1026                 float out4 = (float)plugin->config.out_a / 0xff;
1027                 CREATE_GRADIENT(float, float, 3, 1.0)
1028                 break; }
1029
1030         case BC_RGBA_FLOAT: {
1031                 float in1 = (float)plugin->config.in_r / 0xff;
1032                 float in2 = (float)plugin->config.in_g / 0xff;
1033                 float in3 = (float)plugin->config.in_b / 0xff;
1034                 float in4 = (float)plugin->config.in_a / 0xff;
1035                 float out1 = (float)plugin->config.out_r / 0xff;
1036                 float out2 = (float)plugin->config.out_g / 0xff;
1037                 float out3 = (float)plugin->config.out_b / 0xff;
1038                 float out4 = (float)plugin->config.out_a / 0xff;
1039                 CREATE_GRADIENT(float, float, 4, 1.0)
1040                 break; }
1041
1042         case BC_YUV888: {
1043                 int in_r = plugin->config.in_r;
1044                 int in_g = plugin->config.in_g;
1045                 int in_b = plugin->config.in_b;
1046                 int in1, in2, in3, in4;
1047                 int out1, out2, out3, out4;
1048                 YUV::yuv.rgb_to_yuv_8(in_r,in_g,in_b, in1,in2,in3);
1049                 in4 = plugin->config.in_a;
1050                 int out_r = plugin->config.out_r;
1051                 int out_g = plugin->config.out_g;
1052                 int out_b = plugin->config.out_b;
1053                 YUV::yuv.rgb_to_yuv_8(out_r,out_g,out_b, out1,out2,out3);
1054                 out4 = plugin->config.out_a;
1055                 CREATE_GRADIENT(unsigned char, int, 3, 0xff)
1056                 break; }
1057
1058         case BC_YUVA8888: {
1059                 int in_r = plugin->config.in_r;
1060                 int in_g = plugin->config.in_g;
1061                 int in_b = plugin->config.in_b;
1062                 int in1, in2, in3, in4;
1063                 int out1, out2, out3, out4;
1064                 YUV::yuv.rgb_to_yuv_8(in_r,in_g,in_b, in1,in2,in3);
1065                 in4 = plugin->config.in_a;
1066                 int out_r = plugin->config.out_r;
1067                 int out_g = plugin->config.out_g;
1068                 int out_b = plugin->config.out_b;
1069                 YUV::yuv.rgb_to_yuv_8(out_r,out_g,out_b, out1,out2,out3);
1070                 out4 = plugin->config.out_a;
1071                 CREATE_GRADIENT(unsigned char, int, 4, 0xff)
1072                 break; }
1073         }
1074 }
1075
1076
1077 GradientServer::GradientServer(GradientMain *plugin,
1078         int total_clients, int total_packages)
1079  : LoadServer(total_clients, total_packages)
1080 {
1081         this->plugin = plugin;
1082 }
1083
1084 void GradientServer::init_packages()
1085 {
1086         for( int i = 0; i < get_total_packages(); i++ ) {
1087                 GradientPackage *package = (GradientPackage*)get_package(i);
1088                 package->y1 = plugin->input->get_h() *
1089                         i /
1090                         get_total_packages();
1091                 package->y2 = plugin->input->get_h() *
1092                         (i + 1) /
1093                         get_total_packages();
1094         }
1095 }
1096
1097 LoadClient* GradientServer::new_client()
1098 {
1099         return new GradientUnit(this, plugin);
1100 }
1101
1102 LoadPackage* GradientServer::new_package()
1103 {
1104         return new GradientPackage;
1105 }
1106