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