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