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 <boost/algorithm/string/split.hpp>
  26 #include <boost/algorithm/string.hpp>
  27
  28 #include "scene_producer.h"
  29
  30 #include "../../frame/draw_frame.h"
  31 #include "../../interaction/interaction_aggregator.h"
  32 #include "../text/text_producer.h"
  33
  34 namespace caspar { namespace core { namespace scene {
  35
  36 layer::layer(const std::wstring& name, const spl::shared_ptr<frame_producer>& producer)
  37         : name(name), producer(producer)
  38 {
  39         crop.lower_right.x.bind(producer.get()->pixel_constraints().width);
  40         crop.lower_right.y.bind(producer.get()->pixel_constraints().height);
  41         perspective.upper_right.x.bind(producer.get()->pixel_constraints().width);
  42         perspective.lower_right.x.bind(producer.get()->pixel_constraints().width);
  43         perspective.lower_right.y.bind(producer.get()->pixel_constraints().height);
  44         perspective.lower_left.y.bind(producer.get()->pixel_constraints().height);
  45 }
  46
  47 adjustments::adjustments()
  48         : opacity(1.0)
  49 {
  50 }
  51
  52 struct timeline
  53 {
  54         std::map<int64_t, keyframe> keyframes;
  55
  56         void on_frame(int64_t frame)
  57         {
  58                 auto before = --keyframes.upper_bound(frame);
  59                 bool found_before = before != keyframes.end() && before->first < frame;
  60                 auto after = keyframes.upper_bound(frame);
  61                 bool found_after = after != keyframes.end() && after->first > frame;
  62                 auto exact_frame = keyframes.find(frame);
  63                 bool found_exact_frame = exact_frame != keyframes.end();
  64
  65                 if (found_exact_frame)
  66                 {
  67                         exact_frame->second.on_destination_frame();
  68
  69                         auto next_frame = ++exact_frame;
  70
  71                         if (next_frame != keyframes.end() && next_frame->second.on_start_animate)
  72                                 next_frame->second.on_start_animate();
  73                 }
  74                 else if (found_after)
  75                 {
  76                         int64_t start_frame = 0;
  77
  78                         if (found_before)
  79                         {
  80                                 start_frame = before->first;
  81                         }
  82
  83                         if (after->second.on_start_animate && frame == 0)
  84                                 after->second.on_start_animate();
  85                         else if (after->second.on_animate_to)
  86                                 after->second.on_animate_to(start_frame, frame);
  87                 }
  88         }
  89 };
  90
  91 struct scene_producer::impl
  92 {
  93         constraints pixel_constraints_;
  94         std::list<layer> layers_;
  95         interaction_aggregator aggregator_;
  96         binding<int64_t> frame_number_;
  97         binding<double> speed_;
  98         double frame_fraction_;
  99         std::map<void*, timeline> timelines_;
 100         std::map<std::wstring, std::shared_ptr<core::variable>> variables_;
 101         std::vector<std::wstring> variable_names_;
 102         monitor::subject monitor_subject_;
 103
 104         impl(int width, int height)
 105                 : pixel_constraints_(width, height)
 106                 , aggregator_([=] (double x, double y) { return collission_detect(x, y); })
 107                 , frame_fraction_(0)
 108         {
 109                 auto speed_variable = std::make_shared<core::variable_impl<double>>(L"1.0", true, 1.0);
 110                 store_variable(L"scene_speed", speed_variable);
 111                 speed_ = speed_variable->value();
 112                 auto frame_variable = std::make_shared<core::variable_impl<int64_t>>(L"0", true, 0);
 113                 store_variable(L"frame", frame_variable);
 114                 frame_number_ = frame_variable->value();
 115         }
 116
 117         layer& create_layer(
 118                         const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 119         {
 120                 layer layer(name, producer);
 121
 122                 layer.position.x.set(x);
 123                 layer.position.y.set(y);
 124
 125                 layers_.push_back(layer);
 126
 127                 return layers_.back();
 128         }
 129
 130         void store_keyframe(void* timeline_identity, const keyframe& k)
 131         {
 132                 timelines_[timeline_identity].keyframes.insert(std::make_pair(k.destination_frame, k));
 133         }
 134
 135         void store_variable(
 136                         const std::wstring& name, const std::shared_ptr<core::variable>& var)
 137         {
 138                 variables_.insert(std::make_pair(name, var));
 139                 variable_names_.push_back(name);
 140         }
 141
 142         core::variable& get_variable(const std::wstring& name)
 143         {
 144                 auto found = variables_.find(name);
 145
 146                 if (found == variables_.end())
 147                         CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(name + L" not found in scene"));
 148
 149                 return *found->second;
 150         }
 151
 152         const std::vector<std::wstring>& get_variables() const
 153         {
 154                 return variable_names_;
 155         }
 156
 157         binding<int64_t> frame()
 158         {
 159                 return frame_number_;
 160         }
 161
 162         frame_transform get_transform(const layer& layer) const
 163         {
 164                 frame_transform transform;
 165
 166                 auto& anchor            = transform.image_transform.anchor;
 167                 auto& pos                       = transform.image_transform.fill_translation;
 168                 auto& scale                     = transform.image_transform.fill_scale;
 169                 auto& angle                     = transform.image_transform.angle;
 170                 auto& crop                      = transform.image_transform.crop;
 171                 auto& pers                      = transform.image_transform.perspective;
 172
 173                 anchor[0]       = layer.anchor.x.get()                                                                          / layer.producer.get()->pixel_constraints().width.get();
 174                 anchor[1]       = layer.anchor.y.get()                                                                          / layer.producer.get()->pixel_constraints().height.get();
 175                 pos[0]          = layer.position.x.get()                                                                        / pixel_constraints_.width.get();
 176                 pos[1]          = layer.position.y.get()                                                                        / pixel_constraints_.height.get();
 177                 scale[0]        = layer.producer.get()->pixel_constraints().width.get()         / pixel_constraints_.width.get();
 178                 scale[1]        = layer.producer.get()->pixel_constraints().height.get()        / pixel_constraints_.height.get();
 179                 crop.ul[0]      = layer.crop.upper_left.x.get()                                                         / layer.producer.get()->pixel_constraints().width.get();
 180                 crop.ul[1]      = layer.crop.upper_left.y.get()                                                         / layer.producer.get()->pixel_constraints().height.get();
 181                 crop.lr[0]      = layer.crop.lower_right.x.get()                                                        / layer.producer.get()->pixel_constraints().width.get();
 182                 crop.lr[1]      = layer.crop.lower_right.y.get()                                                        / layer.producer.get()->pixel_constraints().height.get();
 183                 pers.ul[0]      = layer.perspective.upper_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 184                 pers.ul[1]      = layer.perspective.upper_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 185                 pers.ur[0]      = layer.perspective.upper_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 186                 pers.ur[1]      = layer.perspective.upper_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 187                 pers.lr[0]      = layer.perspective.lower_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 188                 pers.lr[1]      = layer.perspective.lower_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 189                 pers.ll[0]      = layer.perspective.lower_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 190                 pers.ll[1]      = layer.perspective.lower_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 191
 192                 static const double PI = 3.141592653589793;
 193
 194                 angle           = layer.rotation.get() * PI / 180.0;
 195
 196                 transform.image_transform.opacity = layer.adjustments.opacity.get();
 197                 transform.image_transform.is_key = layer.is_key.get();
 198
 199                 return transform;
 200         }
 201
 202         draw_frame render_frame()
 203         {
 204                 for (auto& timeline : timelines_)
 205                         timeline.second.on_frame(frame_number_.get());
 206
 207                 std::vector<draw_frame> frames;
 208
 209                 for (auto& layer : layers_)
 210                 {
 211                         if (layer.hidden.get())
 212                                 continue;
 213
 214                         draw_frame frame(layer.producer.get()->receive());
 215                         frame.transform() = get_transform(layer);;
 216                         frames.push_back(frame);
 217                 }
 218
 219                 frame_fraction_ += speed_.get();
 220
 221                 if (std::abs(frame_fraction_) >= 1.0)
 222                 {
 223                         int64_t delta = static_cast<int64_t>(frame_fraction_);
 224                         frame_number_.set(frame_number_.get() + delta);
 225                         frame_fraction_ -= delta;
 226                 }
 227
 228                 return draw_frame(frames);
 229         }
 230
 231         void on_interaction(const interaction_event::ptr& event)
 232         {
 233                 aggregator_.translate_and_send(event);
 234         }
 235
 236         bool collides(double x, double y) const
 237         {
 238                 return static_cast<bool>((collission_detect(x, y)));
 239         }
 240
 241         boost::optional<interaction_target> collission_detect(double x, double y) const
 242         {
 243                 for (auto& layer : layers_ | boost::adaptors::reversed)
 244                 {
 245                         if (layer.hidden.get())
 246                                 continue;
 247
 248                         auto transform = get_transform(layer);
 249                         auto translated = translate(x, y, transform);
 250
 251                         if (translated.first >= 0.0
 252                                 && translated.first <= 1.0
 253                                 && translated.second >= 0.0
 254                                 && translated.second <= 1.0
 255                                 && layer.producer.get()->collides(translated.first, translated.second))
 256                         {
 257                                 return std::make_pair(transform, static_cast<interaction_sink*>(layer.producer.get().get()));
 258                         }
 259                 }
 260
 261                 return boost::optional<interaction_target>();
 262         }
 263
 264         std::future<std::wstring> call(const std::vector<std::wstring>& params)
 265         {
 266                 for (int i = 0; i + 1 < params.size(); i += 2)
 267                 {
 268                         auto found = variables_.find(boost::to_lower_copy(params[i]));
 269
 270                         if (found != variables_.end() && found->second->is_public())
 271                                 found->second->from_string(params[i + 1]);
 272                 }
 273
 274                 return make_ready_future(std::wstring(L""));
 275         }
 276
 277         std::wstring print() const
 278         {
 279                 return L"scene[]";
 280         }
 281
 282         std::wstring name() const
 283         {
 284                 return L"scene";
 285         }
 286
 287         boost::property_tree::wptree info() const
 288         {
 289                 boost::property_tree::wptree info;
 290                 info.add(L"type", L"scene");
 291                 return info;
 292         }
 293
 294         monitor::subject& monitor_output()
 295         {
 296                 return monitor_subject_;
 297         }
 298 };
 299
 300 scene_producer::scene_producer(int width, int height)
 301         : impl_(new impl(width, height))
 302 {
 303 }
 304
 305 scene_producer::~scene_producer()
 306 {
 307 }
 308
 309 layer& scene_producer::create_layer(
 310                 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 311 {
 312         return impl_->create_layer(producer, x, y, name);
 313 }
 314
 315 layer& scene_producer::create_layer(
 316                 const spl::shared_ptr<frame_producer>& producer, const std::wstring& name)
 317 {
 318         return impl_->create_layer(producer, 0, 0, name);
 319 }
 320
 321 binding<int64_t> scene_producer::frame()
 322 {
 323         return impl_->frame();
 324 }
 325
 326 draw_frame scene_producer::receive_impl()
 327 {
 328         return impl_->render_frame();
 329 }
 330
 331 constraints& scene_producer::pixel_constraints() { return impl_->pixel_constraints_; }
 332
 333 void scene_producer::on_interaction(const interaction_event::ptr& event)
 334 {
 335         impl_->on_interaction(event);
 336 }
 337
 338 bool scene_producer::collides(double x, double y) const
 339 {
 340         return impl_->collides(x, y);
 341 }
 342
 343 std::wstring scene_producer::print() const
 344 {
 345         return impl_->print();
 346 }
 347
 348 std::wstring scene_producer::name() const
 349 {
 350         return impl_->name();
 351 }
 352
 353 boost::property_tree::wptree scene_producer::info() const
 354 {
 355         return impl_->info();
 356 }
 357
 358 std::future<std::wstring> scene_producer::call(const std::vector<std::wstring>& params)
 359 {
 360         return impl_->call(params);
 361 }
 362
 363 monitor::subject& scene_producer::monitor_output()
 364 {
 365         return impl_->monitor_output();
 366 }
 367
 368 void scene_producer::store_keyframe(void* timeline_identity, const keyframe& k)
 369 {
 370         impl_->store_keyframe(timeline_identity, k);
 371 }
 372
 373 void scene_producer::store_variable(
 374                 const std::wstring& name, const std::shared_ptr<core::variable>& var)
 375 {
 376         impl_->store_variable(name, var);
 377 }
 378
 379 core::variable& scene_producer::get_variable(const std::wstring& name)
 380 {
 381         return impl_->get_variable(name);
 382 }
 383
 384 const std::vector<std::wstring>& scene_producer::get_variables() const
 385 {
 386         return impl_->get_variables();
 387 }
 388
 389 spl::shared_ptr<core::frame_producer> create_dummy_scene_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const video_format_desc& format_desc, const std::vector<std::wstring>& params)
 390 {
 391         if (params.size() < 1 || !boost::iequals(params.at(0), L"[SCENE]"))
 392                 return core::frame_producer::empty();
 393
 394         auto scene = spl::make_shared<scene_producer>(format_desc.width, format_desc.height);
 395
 396         text::text_info text_info;
 397         text_info.font = L"ArialMT";
 398         text_info.size = 62;
 399         text_info.color.r = 1;
 400         text_info.color.g = 1;
 401         text_info.color.b = 1;
 402         text_info.color.a = 0.5;
 403         auto text_area = text_producer::create(frame_factory, 0, 0, L"a", text_info, 1280, 720, false);
 404
 405         auto text_width = text_area->pixel_constraints().width;
 406         binding<double> padding(1.0);
 407         binding<double> panel_width = padding + text_width + padding;
 408         binding<double> panel_height = padding + text_area->pixel_constraints().height + padding;
 409
 410         auto subscription = panel_width.on_change([&]
 411         {
 412                 CASPAR_LOG(info) << "Panel width: " << panel_width.get();
 413         });
 414
 415         padding.set(2);
 416
 417         auto create_param = [](std::wstring elem) -> std::vector<std::wstring>
 418         {
 419                 std::vector<std::wstring> result;
 420                 result.push_back(elem);
 421                 return result;
 422         };
 423
 424         auto& car_layer = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"car")), L"car");
 425         car_layer.adjustments.opacity.set(0.5);
 426         //car_layer.hidden = scene->frame() % 50 > 25 || !(scene->frame() < 1000);
 427         std::vector<std::wstring> sub_params;
 428         sub_params.push_back(L"[FREEHAND]");
 429         sub_params.push_back(L"640");
 430         sub_params.push_back(L"360");
 431         scene->create_layer(create_producer(frame_factory, format_desc, sub_params), 10, 10, L"freehand");
 432         sub_params.clear();
 433
 434         auto& color_layer = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"RED")), 110, 10, L"color");
 435         color_layer.producer.get()->pixel_constraints().width.set(1000);
 436         color_layer.producer.get()->pixel_constraints().height.set(550);
 437
 438         //scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"SP")), 50, 50);
 439
 440         auto& upper_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_left")), L"upper_left");
 441         auto& upper_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_right")), L"upper_right");
 442         auto& lower_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_left")), L"lower_left");
 443         auto& lower_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_right")), L"lower_right");
 444         auto& text_layer = scene->create_layer(text_area, L"text_area");
 445         upper_left.adjustments.opacity.bind(text_layer.adjustments.opacity);
 446         upper_right.adjustments.opacity.bind(text_layer.adjustments.opacity);
 447         lower_left.adjustments.opacity.bind(text_layer.adjustments.opacity);
 448         lower_right.adjustments.opacity.bind(text_layer.adjustments.opacity);
 449
 450         /*
 451         binding<double> panel_x = (scene->frame()
 452                         .as<double>()
 453                         .transformed([](double v) { return std::sin(v / 20.0); })
 454                         * 20.0
 455                         + 40.0)
 456                         .transformed([](double v) { return std::floor(v); }); // snap to pixels instead of subpixels
 457                         */
 458         tweener tween(L"easeoutbounce");
 459         binding<double> panel_x(0.0);
 460
 461         scene->add_keyframe(panel_x, -panel_width, 0);
 462         scene->add_keyframe(panel_x, 300.0, 50, L"easeinoutsine");
 463         scene->add_keyframe(panel_x, 300.0, 50 * 4);
 464         scene->add_keyframe(panel_x, 1000.0, 50 * 5, L"easeinoutsine");
 465         //panel_x = delay(panel_x, add_tween(panel_x, scene->frame(), 200.0, int64_t(50), L"linear"), scene->frame(), int64_t(100));
 466         /*binding<double> panel_x = when(scene->frame() < 50)
 467                 .then(scene->frame().as<double>().transformed([tween](double t) { return tween(t, 0.0, 200, 50); }))
 468                 .otherwise(200.0);*/
 469         //binding<double> panel_y = when(car_layer.hidden).then(500.0).otherwise(-panel_x + 300);
 470         binding<double> panel_y(500.0);
 471         scene->add_keyframe(panel_y, panel_y.get(), 50 * 4);
 472         scene->add_keyframe(panel_y, 720.0, 50 * 5, L"easeinexpo");
 473
 474         scene->add_keyframe(text_layer.adjustments.opacity, 1.0, 100);
 475         scene->add_keyframe(text_layer.adjustments.opacity, 0.0, 125, L"linear");
 476         scene->add_keyframe(text_layer.adjustments.opacity, 1.0, 150, L"linear");
 477
 478         upper_left.position.x = panel_x;
 479         upper_left.position.y = panel_y;
 480         upper_right.position.x = upper_left.position.x + upper_left.producer.get()->pixel_constraints().width + panel_width;
 481         upper_right.position.y = upper_left.position.y;
 482         lower_left.position.x = upper_left.position.x;
 483         lower_left.position.y = upper_left.position.y + upper_left.producer.get()->pixel_constraints().height + panel_height;
 484         lower_right.position.x = upper_right.position.x;
 485         lower_right.position.y = lower_left.position.y;
 486         text_layer.position.x = upper_left.position.x + upper_left.producer.get()->pixel_constraints().width + padding;
 487         text_layer.position.y = upper_left.position.y + upper_left.producer.get()->pixel_constraints().height + padding + text_area->current_bearing_y().as<double>();
 488
 489         text_area->text().bind(scene->create_variable<std::wstring>(L"text", true));
 490
 491         auto params2 = params;
 492         params2.erase(params2.begin());
 493
 494         scene->call(params2);
 495
 496         return scene;
 497 }
 498
 499 }}}