git.sesse.net Git - casparcg/blob - core/producer/scene/scene_producer.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG 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 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG 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 CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Helge Norberg, helge.norberg@svt.se
  20 */
  21
  22 #include "../../StdAfx.h"
  23
  24 #include <common/future.h>
  25 #include <common/prec_timer.h>
  26
  27 #include <boost/algorithm/string/split.hpp>
  28 #include <boost/algorithm/string.hpp>
  29
  30 #include "scene_producer.h"
  31
  32 #include "../../frame/draw_frame.h"
  33 #include "../../interaction/interaction_aggregator.h"
  34 #include "../text/text_producer.h"
  35
  36 namespace caspar { namespace core { namespace scene {
  37
  38 layer::layer(const std::wstring& name, const spl::shared_ptr<frame_producer>& producer)
  39         : name(name), producer(producer)
  40 {
  41         crop.lower_right.x.bind(producer.get()->pixel_constraints().width);
  42         crop.lower_right.y.bind(producer.get()->pixel_constraints().height);
  43         perspective.upper_right.x.bind(producer.get()->pixel_constraints().width);
  44         perspective.lower_right.x.bind(producer.get()->pixel_constraints().width);
  45         perspective.lower_right.y.bind(producer.get()->pixel_constraints().height);
  46         perspective.lower_left.y.bind(producer.get()->pixel_constraints().height);
  47 }
  48
  49 adjustments::adjustments()
  50         : opacity(1.0)
  51 {
  52 }
  53
  54 struct timeline
  55 {
  56         std::map<int64_t, keyframe> keyframes;
  57
  58         void on_frame(int64_t frame)
  59         {
  60                 auto before = --keyframes.upper_bound(frame);
  61                 bool found_before = before != keyframes.end() && before->first < frame;
  62                 auto after = keyframes.upper_bound(frame);
  63                 bool found_after = after != keyframes.end() && after->first > frame;
  64                 auto exact_frame = keyframes.find(frame);
  65                 bool found_exact_frame = exact_frame != keyframes.end();
  66
  67                 if (found_exact_frame)
  68                 {
  69                         exact_frame->second.on_destination_frame();
  70
  71                         auto next_frame = ++exact_frame;
  72
  73                         if (next_frame != keyframes.end() && next_frame->second.on_start_animate)
  74                                 next_frame->second.on_start_animate();
  75                 }
  76                 else if (found_after)
  77                 {
  78                         int64_t start_frame = 0;
  79
  80                         if (found_before)
  81                         {
  82                                 start_frame = before->first;
  83                         }
  84
  85                         if (after->second.on_start_animate && frame == 0)
  86                                 after->second.on_start_animate();
  87                         else if (after->second.on_animate_to)
  88                                 after->second.on_animate_to(start_frame, frame);
  89                 }
  90         }
  91 };
  92
  93 mark_action get_mark_action(const std::wstring& name)
  94 {
  95         if (name == L"start")
  96                 return mark_action::start;
  97         else if (name == L"stop")
  98                 return mark_action::stop;
  99         else if (name == L"jump_to")
 100                 return mark_action::jump_to;
 101         else if (name == L"remove")
 102                 return mark_action::remove;
 103         else
 104                 CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Invalid mark_action " + name));
 105 }
 106
 107 struct marker
 108 {
 109         mark_action             action;
 110         std::wstring    label_argument;
 111
 112         marker(mark_action action, const std::wstring& label_argument)
 113                 : action(action)
 114                 , label_argument(label_argument)
 115         {
 116         }
 117 };
 118
 119 struct scene_producer::impl
 120 {
 121         std::wstring                                                                                    producer_name_;
 122         std::wstring                                                                                    template_name_;
 123         constraints                                                                                             pixel_constraints_;
 124         video_format_desc                                                                               format_desc_;
 125         std::list<layer>                                                                                layers_;
 126         interaction_aggregator                                                                  aggregator_;
 127         binding<double>                                                                                 frame_number_;
 128         binding<int64_t>                                                                                timeline_frame_number_;
 129         binding<double>                                                                                 speed_;
 130         mutable tbb::atomic<int64_t>                                                    m_x_;
 131         mutable tbb::atomic<int64_t>                                                    m_y_;
 132         binding<int64_t>                                                                                mouse_x_;
 133         binding<int64_t>                                                                                mouse_y_;
 134         double                                                                                                  frame_fraction_         = 0.0;
 135         std::map<void*, timeline>                                                               timelines_;
 136         std::map<std::wstring, std::shared_ptr<core::variable>> variables_;
 137         std::vector<std::wstring>                                                               variable_names_;
 138         std::multimap<int64_t, marker>                                                  markers_by_frame_;
 139         std::vector<std::shared_ptr<void>>                                              task_subscriptions_;
 140         monitor::subject                                                                                monitor_subject_;
 141         bool                                                                                                    paused_                         = true;
 142         bool                                                                                                    removed_                        = false;
 143         bool                                                                                                    going_to_mark_          = false;
 144
 145         impl(
 146                         std::wstring producer_name,
 147                         std::wstring template_name,
 148                         int width,
 149                         int height,
 150                         const video_format_desc& format_desc)
 151                 : producer_name_(std::move(producer_name))
 152                 , template_name_(std::move(template_name))
 153                 , format_desc_(format_desc)
 154                 , aggregator_([=] (double x, double y) { return collission_detect(x, y); })
 155         {
 156                 auto speed_variable = std::make_shared<core::variable_impl<double>>(L"1.0", true, 1.0);
 157                 store_variable(L"scene_speed", speed_variable);
 158                 speed_ = speed_variable->value();
 159
 160                 auto frame_variable = std::make_shared<core::variable_impl<double>>(L"-1", true, -1);
 161                 store_variable(L"frame", frame_variable);
 162                 frame_number_ = frame_variable->value();
 163
 164                 auto timeline_frame_variable = std::make_shared<core::variable_impl<int64_t>>(L"-1", false, -1);
 165                 store_variable(L"timeline_frame", timeline_frame_variable);
 166                 timeline_frame_number_ = timeline_frame_variable->value();
 167
 168                 auto mouse_x_variable = std::make_shared<core::variable_impl<int64_t>>(L"0", false, 0);
 169                 auto mouse_y_variable = std::make_shared<core::variable_impl<int64_t>>(L"0", false, 0);
 170                 store_variable(L"mouse_x", mouse_x_variable);
 171                 store_variable(L"mouse_y", mouse_y_variable);
 172                 mouse_x_ = mouse_x_variable->value();
 173                 mouse_y_ = mouse_y_variable->value();
 174                 m_x_ = 0;
 175                 m_y_ = 0;
 176
 177                 auto scene_width = std::make_shared<core::variable_impl<double>>(boost::lexical_cast<std::wstring>(width), false, width);
 178                 auto scene_height = std::make_shared<core::variable_impl<double>>(boost::lexical_cast<std::wstring>(height), false, height);
 179                 store_variable(L"scene_width", scene_width);
 180                 store_variable(L"scene_height", scene_height);
 181                 pixel_constraints_.width = scene_width->value();
 182                 pixel_constraints_.height = scene_height->value();
 183         }
 184
 185         layer& create_layer(
 186                         const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 187         {
 188                 layer layer(name, producer);
 189
 190                 layer.position.x.set(x);
 191                 layer.position.y.set(y);
 192
 193                 layers_.push_back(layer);
 194
 195                 return layers_.back();
 196         }
 197
 198         void reverse_layers() {
 199                 layers_.reverse();
 200         }
 201
 202         layer& get_layer(const std::wstring& name)
 203         {
 204                 for (auto& layer : layers_)
 205                         if (layer.name.get() == name)
 206                                 return layer;
 207
 208                 CASPAR_THROW_EXCEPTION(user_error() << msg_info(name + L" not found in scene"));
 209         }
 210
 211         void store_keyframe(void* timeline_identity, const keyframe& k)
 212         {
 213                 timelines_[timeline_identity].keyframes.insert(std::make_pair(k.destination_frame, k));
 214         }
 215
 216         void store_variable(
 217                         const std::wstring& name, const std::shared_ptr<core::variable>& var)
 218         {
 219                 variables_.insert(std::make_pair(name, var));
 220                 variable_names_.push_back(name);
 221         }
 222
 223         void add_mark(int64_t frame, mark_action action, const std::wstring& label)
 224         {
 225                 markers_by_frame_.insert(std::make_pair(frame, marker(action, label)));
 226         }
 227
 228         void add_task(binding<bool> when, std::function<void ()> task)
 229         {
 230                 auto subscription = when.on_change([=]
 231                 {
 232                         if (when.get())
 233                         {
 234                                 try
 235                                 {
 236                                         task();
 237                                 }
 238                                 catch (...)
 239                                 {
 240                                         CASPAR_LOG_CURRENT_EXCEPTION_AT_LEVEL(debug);
 241                                         CASPAR_LOG(error) << print() << " Error when invoking scene task. Turn on log level debug for stacktrace.";
 242                                 }
 243                         }
 244                 });
 245
 246                 task_subscriptions_.push_back(std::move(subscription));
 247         }
 248
 249         core::variable& get_variable(const std::wstring& name)
 250         {
 251                 auto found = variables_.find(name);
 252
 253                 if (found == variables_.end())
 254                         CASPAR_THROW_EXCEPTION(user_error() << msg_info(name + L" not found in scene"));
 255
 256                 return *found->second;
 257         }
 258
 259         const std::vector<std::wstring>& get_variables() const
 260         {
 261                 return variable_names_;
 262         }
 263
 264         binding<int64_t> timeline_frame()
 265         {
 266                 return timeline_frame_number_;
 267         }
 268
 269         frame_transform get_transform(const layer& layer) const
 270         {
 271                 frame_transform transform;
 272
 273                 auto& anchor            = transform.image_transform.anchor;
 274                 auto& pos                       = transform.image_transform.fill_translation;
 275                 auto& scale                     = transform.image_transform.fill_scale;
 276                 auto& angle                     = transform.image_transform.angle;
 277                 auto& crop                      = transform.image_transform.crop;
 278                 auto& pers                      = transform.image_transform.perspective;
 279
 280                 anchor[0]       = layer.anchor.x.get()                                                                          / layer.producer.get()->pixel_constraints().width.get();
 281                 anchor[1]       = layer.anchor.y.get()                                                                          / layer.producer.get()->pixel_constraints().height.get();
 282                 pos[0]          = layer.position.x.get()                                                                        / pixel_constraints_.width.get();
 283                 pos[1]          = layer.position.y.get()                                                                        / pixel_constraints_.height.get();
 284                 scale[0]        = layer.producer.get()->pixel_constraints().width.get()         / pixel_constraints_.width.get();
 285                 scale[1]        = layer.producer.get()->pixel_constraints().height.get()        / pixel_constraints_.height.get();
 286                 crop.ul[0]      = layer.crop.upper_left.x.get()                                                         / layer.producer.get()->pixel_constraints().width.get();
 287                 crop.ul[1]      = layer.crop.upper_left.y.get()                                                         / layer.producer.get()->pixel_constraints().height.get();
 288                 crop.lr[0]      = layer.crop.lower_right.x.get()                                                        / layer.producer.get()->pixel_constraints().width.get();
 289                 crop.lr[1]      = layer.crop.lower_right.y.get()                                                        / layer.producer.get()->pixel_constraints().height.get();
 290                 pers.ul[0]      = layer.perspective.upper_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 291                 pers.ul[1]      = layer.perspective.upper_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 292                 pers.ur[0]      = layer.perspective.upper_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 293                 pers.ur[1]      = layer.perspective.upper_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 294                 pers.lr[0]      = layer.perspective.lower_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 295                 pers.lr[1]      = layer.perspective.lower_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 296                 pers.ll[0]      = layer.perspective.lower_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 297                 pers.ll[1]      = layer.perspective.lower_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 298
 299                 static const double PI = 3.141592653589793;
 300
 301                 angle           = layer.rotation.get() * PI / 180.0;
 302
 303                 transform.image_transform.opacity                               = layer.adjustments.opacity.get();
 304                 transform.image_transform.is_key                                = layer.is_key.get();
 305                 transform.image_transform.use_mipmap                    = layer.use_mipmap.get();
 306                 transform.image_transform.blend_mode                    = layer.blend_mode.get();
 307                 transform.image_transform.chroma.enable                 = layer.chroma_key.enable.get();
 308                 transform.image_transform.chroma.target_hue             = layer.chroma_key.target_hue.get();
 309                 transform.image_transform.chroma.hue_width              = layer.chroma_key.hue_width.get();
 310                 transform.image_transform.chroma.min_saturation = layer.chroma_key.min_saturation.get();
 311                 transform.image_transform.chroma.min_brightness = layer.chroma_key.min_brightness.get();
 312                 transform.image_transform.chroma.softness               = layer.chroma_key.softness.get();
 313                 transform.image_transform.chroma.spill                  = layer.chroma_key.spill.get();
 314                 transform.image_transform.chroma.spill_darken   = layer.chroma_key.spill_darken.get();
 315
 316                 // Mark as sublayer, so it will be composited separately by the mixer.
 317                 transform.image_transform.layer_depth = 1;
 318
 319                 return transform;
 320         }
 321
 322         boost::optional<std::pair<int64_t, marker>> find_first_stop_or_jump_or_remove(int64_t start_frame, int64_t end_frame)
 323         {
 324                 auto lower = markers_by_frame_.lower_bound(start_frame);
 325                 auto upper = markers_by_frame_.upper_bound(end_frame);
 326
 327                 if (lower == markers_by_frame_.end())
 328                         return boost::none;
 329
 330                 for (auto iter = lower; iter != upper; ++iter)
 331                 {
 332                         auto action = iter->second.action;
 333
 334                         if (action == mark_action::stop || action == mark_action::jump_to || action == mark_action::remove)
 335                                 return std::make_pair(iter->first, iter->second);
 336                 }
 337
 338                 return boost::none;
 339         }
 340
 341         boost::optional<std::pair<int64_t, marker>> find_first_start(int64_t start_frame)
 342         {
 343                 auto lower = markers_by_frame_.lower_bound(start_frame);
 344
 345                 if (lower == markers_by_frame_.end())
 346                         return boost::none;
 347
 348                 for (auto iter = lower; iter != markers_by_frame_.end(); ++iter)
 349                 {
 350                         auto action = iter->second.action;
 351
 352                         if (action == mark_action::start)
 353                                 return std::make_pair(iter->first, iter->second);
 354                 }
 355
 356                 return boost::none;
 357         }
 358
 359         draw_frame render_frame()
 360         {
 361                 if (format_desc_.field_count == 1)
 362                         return render_progressive_frame();
 363                 else
 364                 {
 365                         prec_timer timer;
 366                         timer.tick_millis(0);
 367
 368                         auto field1 = render_progressive_frame();
 369
 370                         timer.tick(0.5 / format_desc_.fps);
 371
 372                         auto field2 = render_progressive_frame();
 373
 374                         return draw_frame::interlace(field1, field2, format_desc_.field_mode);
 375                 }
 376         }
 377
 378         void advance()
 379         {
 380                 frame_fraction_ += speed_.get();
 381
 382                 if (std::abs(frame_fraction_) >= 1.0)
 383                 {
 384                         int64_t delta = static_cast<int64_t>(frame_fraction_);
 385                         auto previous_frame = timeline_frame_number_.get();
 386                         auto next_frame = timeline_frame_number_.get() + delta;
 387                         auto marker = find_first_stop_or_jump_or_remove(previous_frame + 1, next_frame);
 388
 389                         if (marker && marker->second.action == mark_action::remove)
 390                         {
 391                                 remove();
 392                         }
 393                         if (marker && !going_to_mark_)
 394                         {
 395                                 if (marker->second.action == mark_action::stop)
 396                                 {
 397                                         timeline_frame_number_.set(marker->first);
 398                                         frame_fraction_ = 0.0;
 399                                         paused_ = true;
 400                                 }
 401                                 else if (marker->second.action == mark_action::jump_to)
 402                                 {
 403                                         go_to_marker(marker->second.label_argument, 0);
 404                                 }
 405                         }
 406                         else
 407                         {
 408                                 timeline_frame_number_.set(next_frame);
 409                                 frame_fraction_ -= delta;
 410                         }
 411
 412                         going_to_mark_ = false;
 413                 }
 414         }
 415
 416         draw_frame render_progressive_frame()
 417         {
 418                 if (removed_)
 419                         return draw_frame::empty();
 420
 421                 mouse_x_.set(m_x_);
 422                 mouse_y_.set(m_y_);
 423
 424                 if (!paused_)
 425                         advance();
 426
 427                 frame_number_.set(frame_number_.get() + speed_.get());
 428
 429                 for (auto& timeline : timelines_)
 430                         timeline.second.on_frame(timeline_frame_number_.get());
 431
 432                 std::vector<draw_frame> frames;
 433
 434                 for (auto& layer : layers_)
 435                 {
 436                         if (layer.hidden.get())
 437                                 continue;
 438
 439                         draw_frame frame(layer.producer.get()->receive());
 440                         frame.transform() = get_transform(layer);
 441                         frames.push_back(frame);
 442                 }
 443
 444                 return draw_frame(frames);
 445         }
 446
 447         void on_interaction(const interaction_event::ptr& event)
 448         {
 449                 aggregator_.translate_and_send(event);
 450         }
 451
 452         bool collides(double x, double y) const
 453         {
 454                 m_x_ = static_cast<int64_t>(x * pixel_constraints_.width.get());
 455                 m_y_ = static_cast<int64_t>(y * pixel_constraints_.height.get());
 456
 457                 return static_cast<bool>((collission_detect(x, y)));
 458         }
 459
 460         boost::optional<interaction_target> collission_detect(double x, double y) const
 461         {
 462                 for (auto& layer : layers_ | boost::adaptors::reversed)
 463                 {
 464                         if (layer.hidden.get())
 465                                 continue;
 466
 467                         auto transform = get_transform(layer);
 468                         auto translated = translate(x, y, transform);
 469
 470                         if (translated.first >= 0.0
 471                                 && translated.first <= 1.0
 472                                 && translated.second >= 0.0
 473                                 && translated.second <= 1.0
 474                                 && layer.producer.get()->collides(translated.first, translated.second))
 475                         {
 476                                 return std::make_pair(transform, static_cast<interaction_sink*>(layer.producer.get().get()));
 477                         }
 478                 }
 479
 480                 return boost::optional<interaction_target>();
 481         }
 482
 483         std::future<std::wstring> call(const std::vector<std::wstring>& params)
 484         {
 485                 if (!params.empty() && boost::ends_with(params.at(0), L"()"))
 486                         return make_ready_future(handle_call(params));
 487                 else
 488                         return make_ready_future(handle_variable_set(params));
 489         }
 490
 491         std::wstring handle_variable_set(const std::vector<std::wstring>& params)
 492         {
 493                 for (int i = 0; i + 1 < params.size(); i += 2)
 494                 {
 495                         auto found = variables_.find(boost::to_lower_copy(params.at(i)));
 496
 497                         if (found != variables_.end() && found->second->is_public())
 498                                 found->second->from_string(params.at(i + 1));
 499                 }
 500
 501                 return L"";
 502         }
 503
 504         std::wstring handle_call(const std::vector<std::wstring>& params)
 505         {
 506                 auto call = params.at(0);
 507
 508                 if (call == L"play()")
 509                         go_to_marker(params.at(1), -1);
 510                 else if (call == L"remove()")
 511                         remove();
 512                 else if (call == L"next()")
 513                         next();
 514                 else
 515                         CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Unknown call " + call));
 516
 517                 return L"";
 518         }
 519
 520         void remove()
 521         {
 522                 removed_ = true;
 523                 layers_.clear();
 524         }
 525
 526         void next()
 527         {
 528                 auto marker = find_first_start(timeline_frame_number_.get() + 1);
 529
 530                 if (marker)
 531                 {
 532                         timeline_frame_number_.set(marker->first - 1);
 533                         frame_fraction_ = 0.0;
 534                         paused_ = false;
 535                         going_to_mark_ = true;
 536                 }
 537                 else
 538                 {
 539                         remove();
 540                 }
 541         }
 542
 543         void go_to_marker(const std::wstring& marker_name, int64_t offset)
 544         {
 545                 for (auto& marker : markers_by_frame_)
 546                 {
 547                         if (marker.second.label_argument == marker_name && marker.second.action == mark_action::start)
 548                         {
 549                                 timeline_frame_number_.set(marker.first + offset);
 550                                 frame_fraction_ = 0.0;
 551                                 paused_ = false;
 552                                 going_to_mark_ = true;
 553
 554                                 return;
 555                         }
 556                 }
 557
 558                 if (marker_name == L"intro")
 559                 {
 560                         timeline_frame_number_.set(offset);
 561                         frame_fraction_ = 0.0;
 562                         paused_ = false;
 563                         going_to_mark_ = true;
 564                 }
 565                 else if (marker_name == L"outro")
 566                 {
 567                         remove();
 568                 }
 569                 else
 570                         CASPAR_LOG(info) << print() << L" no marker called " << marker_name << " found";
 571         }
 572
 573         std::wstring print() const
 574         {
 575                 return L"scene[type=" + name() + L" template=" + template_name_ + L"]";
 576         }
 577
 578         std::wstring name() const
 579         {
 580                 return producer_name_;
 581         }
 582
 583         boost::property_tree::wptree info() const
 584         {
 585                 boost::property_tree::wptree info;
 586                 info.add(L"type", L"scene");
 587                 info.add(L"producer-name", name());
 588                 info.add(L"template-name", template_name_);
 589                 info.add(L"frame-number", frame_number_.get());
 590                 info.add(L"timeline-frame-number", timeline_frame_number_.get());
 591
 592                 for (auto& var : variables_)
 593                 {
 594                         boost::property_tree::wptree variable_info;
 595
 596                         variable_info.add(L"name", var.first);
 597                         variable_info.add(L"public", var.second->is_public());
 598                         variable_info.add(L"value", var.second->to_string());
 599
 600                         info.add_child(L"variables.variable", variable_info);
 601                 }
 602
 603                 for (auto& layer : layers_)
 604                 {
 605                         boost::property_tree::wptree layer_info;
 606
 607                         layer_info.add(L"name", layer.name.get());
 608                         layer_info.add_child(L"producer", layer.producer.get()->info());
 609                         layer_info.add(L"x", layer.position.x.get());
 610                         layer_info.add(L"y", layer.position.y.get());
 611                         layer_info.add(L"width", layer.producer.get()->pixel_constraints().width.get());
 612                         layer_info.add(L"height", layer.producer.get()->pixel_constraints().height.get());
 613
 614                         info.add_child(L"layers.layer", layer_info);
 615                 }
 616
 617                 return info;
 618         }
 619
 620         monitor::subject& monitor_output()
 621         {
 622                 return monitor_subject_;
 623         }
 624 };
 625
 626 scene_producer::scene_producer(std::wstring producer_name, std::wstring template_name, int width, int height, const video_format_desc& format_desc)
 627         : impl_(new impl(std::move(producer_name), std::move(template_name), width, height, format_desc))
 628 {
 629 }
 630
 631 scene_producer::~scene_producer()
 632 {
 633 }
 634
 635 layer& scene_producer::create_layer(
 636                 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 637 {
 638         return impl_->create_layer(producer, x, y, name);
 639 }
 640
 641 layer& scene_producer::create_layer(
 642                 const spl::shared_ptr<frame_producer>& producer, const std::wstring& name)
 643 {
 644         return impl_->create_layer(producer, 0, 0, name);
 645 }
 646
 647 void scene_producer::reverse_layers()
 648 {
 649         impl_->reverse_layers();
 650 }
 651
 652 layer& scene_producer::get_layer(const std::wstring& name)
 653 {
 654         return impl_->get_layer(name);
 655 }
 656
 657 binding<int64_t> scene_producer::timeline_frame()
 658 {
 659         return impl_->timeline_frame();
 660 }
 661
 662 draw_frame scene_producer::receive_impl()
 663 {
 664         return impl_->render_frame();
 665 }
 666
 667 constraints& scene_producer::pixel_constraints() { return impl_->pixel_constraints_; }
 668
 669 void scene_producer::on_interaction(const interaction_event::ptr& event)
 670 {
 671         impl_->on_interaction(event);
 672 }
 673
 674 bool scene_producer::collides(double x, double y) const
 675 {
 676         return impl_->collides(x, y);
 677 }
 678
 679 std::wstring scene_producer::print() const
 680 {
 681         return impl_->print();
 682 }
 683
 684 std::wstring scene_producer::name() const
 685 {
 686         return impl_->name();
 687 }
 688
 689 boost::property_tree::wptree scene_producer::info() const
 690 {
 691         return impl_->info();
 692 }
 693
 694 std::future<std::wstring> scene_producer::call(const std::vector<std::wstring>& params)
 695 {
 696         return impl_->call(params);
 697 }
 698
 699 monitor::subject& scene_producer::monitor_output()
 700 {
 701         return impl_->monitor_output();
 702 }
 703
 704 void scene_producer::store_keyframe(void* timeline_identity, const keyframe& k)
 705 {
 706         impl_->store_keyframe(timeline_identity, k);
 707 }
 708
 709 void scene_producer::store_variable(
 710                 const std::wstring& name, const std::shared_ptr<core::variable>& var)
 711 {
 712         impl_->store_variable(name, var);
 713 }
 714
 715 void scene_producer::add_mark(int64_t frame, mark_action action, const std::wstring& label)
 716 {
 717         impl_->add_mark(frame, action, label);
 718 }
 719
 720 void scene_producer::add_task(binding<bool> when, std::function<void ()> task)
 721 {
 722         impl_->add_task(std::move(when), std::move(task));
 723 }
 724
 725 core::variable& scene_producer::get_variable(const std::wstring& name)
 726 {
 727         return impl_->get_variable(name);
 728 }
 729
 730 const std::vector<std::wstring>& scene_producer::get_variables() const
 731 {
 732         return impl_->get_variables();
 733 }
 734
 735 }}}