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                 transform.image_transform.use_mipmap = layer.use_mipmap.get();
 199
 200                 return transform;
 201         }
 202
 203         draw_frame render_frame()
 204         {
 205                 for (auto& timeline : timelines_)
 206                         timeline.second.on_frame(frame_number_.get());
 207
 208                 std::vector<draw_frame> frames;
 209
 210                 for (auto& layer : layers_)
 211                 {
 212                         if (layer.hidden.get())
 213                                 continue;
 214
 215                         draw_frame frame(layer.producer.get()->receive());
 216                         frame.transform() = get_transform(layer);
 217                         frames.push_back(frame);
 218                 }
 219
 220                 frame_fraction_ += speed_.get();
 221
 222                 if (std::abs(frame_fraction_) >= 1.0)
 223                 {
 224                         int64_t delta = static_cast<int64_t>(frame_fraction_);
 225                         frame_number_.set(frame_number_.get() + delta);
 226                         frame_fraction_ -= delta;
 227                 }
 228
 229                 return draw_frame(frames);
 230         }
 231
 232         void on_interaction(const interaction_event::ptr& event)
 233         {
 234                 aggregator_.translate_and_send(event);
 235         }
 236
 237         bool collides(double x, double y) const
 238         {
 239                 return static_cast<bool>((collission_detect(x, y)));
 240         }
 241
 242         boost::optional<interaction_target> collission_detect(double x, double y) const
 243         {
 244                 for (auto& layer : layers_ | boost::adaptors::reversed)
 245                 {
 246                         if (layer.hidden.get())
 247                                 continue;
 248
 249                         auto transform = get_transform(layer);
 250                         auto translated = translate(x, y, transform);
 251
 252                         if (translated.first >= 0.0
 253                                 && translated.first <= 1.0
 254                                 && translated.second >= 0.0
 255                                 && translated.second <= 1.0
 256                                 && layer.producer.get()->collides(translated.first, translated.second))
 257                         {
 258                                 return std::make_pair(transform, static_cast<interaction_sink*>(layer.producer.get().get()));
 259                         }
 260                 }
 261
 262                 return boost::optional<interaction_target>();
 263         }
 264
 265         std::future<std::wstring> call(const std::vector<std::wstring>& params)
 266         {
 267                 for (int i = 0; i + 1 < params.size(); i += 2)
 268                 {
 269                         auto found = variables_.find(boost::to_lower_copy(params[i]));
 270
 271                         if (found != variables_.end() && found->second->is_public())
 272                                 found->second->from_string(params[i + 1]);
 273                 }
 274
 275                 return make_ready_future(std::wstring(L""));
 276         }
 277
 278         std::wstring print() const
 279         {
 280                 return L"scene[]";
 281         }
 282
 283         std::wstring name() const
 284         {
 285                 return L"scene";
 286         }
 287
 288         boost::property_tree::wptree info() const
 289         {
 290                 boost::property_tree::wptree info;
 291                 info.add(L"type", L"scene");
 292                 return info;
 293         }
 294
 295         monitor::subject& monitor_output()
 296         {
 297                 return monitor_subject_;
 298         }
 299 };
 300
 301 scene_producer::scene_producer(int width, int height)
 302         : impl_(new impl(width, height))
 303 {
 304 }
 305
 306 scene_producer::~scene_producer()
 307 {
 308 }
 309
 310 layer& scene_producer::create_layer(
 311                 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 312 {
 313         return impl_->create_layer(producer, x, y, name);
 314 }
 315
 316 layer& scene_producer::create_layer(
 317                 const spl::shared_ptr<frame_producer>& producer, const std::wstring& name)
 318 {
 319         return impl_->create_layer(producer, 0, 0, name);
 320 }
 321
 322 binding<int64_t> scene_producer::frame()
 323 {
 324         return impl_->frame();
 325 }
 326
 327 draw_frame scene_producer::receive_impl()
 328 {
 329         return impl_->render_frame();
 330 }
 331
 332 constraints& scene_producer::pixel_constraints() { return impl_->pixel_constraints_; }
 333
 334 void scene_producer::on_interaction(const interaction_event::ptr& event)
 335 {
 336         impl_->on_interaction(event);
 337 }
 338
 339 bool scene_producer::collides(double x, double y) const
 340 {
 341         return impl_->collides(x, y);
 342 }
 343
 344 std::wstring scene_producer::print() const
 345 {
 346         return impl_->print();
 347 }
 348
 349 std::wstring scene_producer::name() const
 350 {
 351         return impl_->name();
 352 }
 353
 354 boost::property_tree::wptree scene_producer::info() const
 355 {
 356         return impl_->info();
 357 }
 358
 359 std::future<std::wstring> scene_producer::call(const std::vector<std::wstring>& params)
 360 {
 361         return impl_->call(params);
 362 }
 363
 364 monitor::subject& scene_producer::monitor_output()
 365 {
 366         return impl_->monitor_output();
 367 }
 368
 369 void scene_producer::store_keyframe(void* timeline_identity, const keyframe& k)
 370 {
 371         impl_->store_keyframe(timeline_identity, k);
 372 }
 373
 374 void scene_producer::store_variable(
 375                 const std::wstring& name, const std::shared_ptr<core::variable>& var)
 376 {
 377         impl_->store_variable(name, var);
 378 }
 379
 380 core::variable& scene_producer::get_variable(const std::wstring& name)
 381 {
 382         return impl_->get_variable(name);
 383 }
 384
 385 const std::vector<std::wstring>& scene_producer::get_variables() const
 386 {
 387         return impl_->get_variables();
 388 }
 389
 390 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)
 391 {
 392         if (params.size() < 1 || !boost::iequals(params.at(0), L"[SCENE]"))
 393                 return core::frame_producer::empty();
 394
 395         auto scene = spl::make_shared<scene_producer>(format_desc.width, format_desc.height);
 396
 397         text::text_info text_info;
 398         text_info.font = L"ArialMT";
 399         text_info.size = 62;
 400         text_info.color.r = 1;
 401         text_info.color.g = 1;
 402         text_info.color.b = 1;
 403         text_info.color.a = 0.5;
 404         auto text_area = text_producer::create(frame_factory, 0, 0, L"a", text_info, 1280, 720, false);
 405
 406         auto text_width = text_area->pixel_constraints().width;
 407         binding<double> padding(1.0);
 408         binding<double> panel_width = padding + text_width + padding;
 409         binding<double> panel_height = padding + text_area->pixel_constraints().height + padding;
 410
 411         auto subscription = panel_width.on_change([&]
 412         {
 413                 CASPAR_LOG(info) << "Panel width: " << panel_width.get();
 414         });
 415
 416         padding.set(2);
 417
 418         auto create_param = [](std::wstring elem) -> std::vector<std::wstring>
 419         {
 420                 std::vector<std::wstring> result;
 421                 result.push_back(elem);
 422                 return result;
 423         };
 424
 425         auto& car_layer = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"car")), L"car");
 426         car_layer.adjustments.opacity.set(0.5);
 427         //car_layer.hidden = scene->frame() % 50 > 25 || !(scene->frame() < 1000);
 428         std::vector<std::wstring> sub_params;
 429         sub_params.push_back(L"[FREEHAND]");
 430         sub_params.push_back(L"640");
 431         sub_params.push_back(L"360");
 432         scene->create_layer(create_producer(frame_factory, format_desc, sub_params), 10, 10, L"freehand");
 433         sub_params.clear();
 434
 435         auto& color_layer = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"RED")), 110, 10, L"color");
 436         color_layer.producer.get()->pixel_constraints().width.set(1000);
 437         color_layer.producer.get()->pixel_constraints().height.set(550);
 438
 439         //scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"SP")), 50, 50);
 440
 441         auto& upper_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_left")), L"upper_left");
 442         auto& upper_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_right")), L"upper_right");
 443         auto& lower_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_left")), L"lower_left");
 444         auto& lower_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_right")), L"lower_right");
 445         auto& text_layer = scene->create_layer(text_area, L"text_area");
 446         upper_left.adjustments.opacity.bind(text_layer.adjustments.opacity);
 447         upper_right.adjustments.opacity.bind(text_layer.adjustments.opacity);
 448         lower_left.adjustments.opacity.bind(text_layer.adjustments.opacity);
 449         lower_right.adjustments.opacity.bind(text_layer.adjustments.opacity);
 450
 451         /*
 452         binding<double> panel_x = (scene->frame()
 453                         .as<double>()
 454                         .transformed([](double v) { return std::sin(v / 20.0); })
 455                         * 20.0
 456                         + 40.0)
 457                         .transformed([](double v) { return std::floor(v); }); // snap to pixels instead of subpixels
 458                         */
 459         tweener tween(L"easeoutbounce");
 460         binding<double> panel_x(0.0);
 461
 462         scene->add_keyframe(panel_x, -panel_width, 0);
 463         scene->add_keyframe(panel_x, 300.0, 50, L"easeinoutsine");
 464         scene->add_keyframe(panel_x, 300.0, 50 * 4);
 465         scene->add_keyframe(panel_x, 1000.0, 50 * 5, L"easeinoutsine");
 466         //panel_x = delay(panel_x, add_tween(panel_x, scene->frame(), 200.0, int64_t(50), L"linear"), scene->frame(), int64_t(100));
 467         /*binding<double> panel_x = when(scene->frame() < 50)
 468                 .then(scene->frame().as<double>().transformed([tween](double t) { return tween(t, 0.0, 200, 50); }))
 469                 .otherwise(200.0);*/
 470         //binding<double> panel_y = when(car_layer.hidden).then(500.0).otherwise(-panel_x + 300);
 471         binding<double> panel_y(500.0);
 472         scene->add_keyframe(panel_y, panel_y.get(), 50 * 4);
 473         scene->add_keyframe(panel_y, 720.0, 50 * 5, L"easeinexpo");
 474
 475         scene->add_keyframe(text_layer.adjustments.opacity, 1.0, 100);
 476         scene->add_keyframe(text_layer.adjustments.opacity, 0.0, 125, L"linear");
 477         scene->add_keyframe(text_layer.adjustments.opacity, 1.0, 150, L"linear");
 478
 479         upper_left.position.x = panel_x;
 480         upper_left.position.y = panel_y;
 481         upper_right.position.x = upper_left.position.x + upper_left.producer.get()->pixel_constraints().width + panel_width;
 482         upper_right.position.y = upper_left.position.y;
 483         lower_left.position.x = upper_left.position.x;
 484         lower_left.position.y = upper_left.position.y + upper_left.producer.get()->pixel_constraints().height + panel_height;
 485         lower_right.position.x = upper_right.position.x;
 486         lower_right.position.y = lower_left.position.y;
 487         text_layer.position.x = upper_left.position.x + upper_left.producer.get()->pixel_constraints().width + padding;
 488         text_layer.position.y = upper_left.position.y + upper_left.producer.get()->pixel_constraints().height + padding + text_area->current_bearing_y().as<double>();
 489
 490         text_area->text().bind(scene->create_variable<std::wstring>(L"text", true));
 491
 492         auto params2 = params;
 493         params2.erase(params2.begin());
 494
 495         scene->call(params2);
 496
 497         return scene;
 498 }
 499
 500 }}}