2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
\r
4 * This file is part of CasparCG (www.casparcg.com).
\r
6 * CasparCG is free software: you can redistribute it and/or modify
\r
7 * it under the terms of the GNU General Public License as published by
\r
8 * the Free Software Foundation, either version 3 of the License, or
\r
9 * (at your option) any later version.
\r
11 * CasparCG is distributed in the hope that it will be useful,
\r
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 * GNU General Public License for more details.
\r
16 * You should have received a copy of the GNU General Public License
\r
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
\r
19 * Author: Robert Nagy, ronag89@gmail.com
\r
22 #include "ogl_consumer.h"
\r
24 #include <GL/glew.h>
\r
25 #include <SFML/Window.hpp>
\r
27 #include <common/diagnostics/graph.h>
\r
28 #include <common/gl/gl_check.h>
\r
29 #include <common/log/log.h>
\r
30 #include <common/memory/safe_ptr.h>
\r
31 #include <common/memory/memcpy.h>
\r
32 #include <common/memory/memshfl.h>
\r
33 #include <common/utility/timer.h>
\r
34 #include <common/utility/string.h>
\r
35 #include <common/concurrency/future_util.h>
\r
37 #include <ffmpeg/producer/filter/filter.h>
\r
39 #include <core/video_format.h>
\r
40 #include <core/mixer/read_frame.h>
\r
41 #include <core/consumer/frame_consumer.h>
\r
43 #include <boost/timer.hpp>
\r
44 #include <boost/circular_buffer.hpp>
\r
45 #include <boost/foreach.hpp>
\r
46 #include <boost/thread.hpp>
\r
47 #include <boost/property_tree/ptree.hpp>
\r
49 #include <tbb/atomic.h>
\r
50 #include <tbb/concurrent_queue.h>
\r
52 #include <boost/assign.hpp>
\r
54 #include <algorithm>
\r
57 #if defined(_MSC_VER)
\r
58 #pragma warning (push)
\r
59 #pragma warning (disable : 4244)
\r
63 #define __STDC_CONSTANT_MACROS
\r
64 #define __STDC_LIMIT_MACROS
\r
65 #include <libavcodec/avcodec.h>
\r
66 #include <libavutil/imgutils.h>
\r
68 #if defined(_MSC_VER)
\r
69 #pragma warning (pop)
\r
72 typedef int (*PFNWGLEXTGETSWAPINTERVALPROC) (void);
\r
74 namespace caspar { namespace ogl {
\r
84 struct configuration
\r
94 size_t screen_index;
\r
97 bool auto_deinterlace;
\r
99 aspect_ratio aspect;
\r
107 , auto_deinterlace(true)
\r
109 , aspect(aspect_invalid)
\r
115 struct ogl_consumer : boost::noncopyable
\r
117 const configuration config_;
\r
118 core::video_format_desc format_desc_;
\r
119 int channel_index_;
\r
122 std::vector<GLuint> pbos_;
\r
126 unsigned int screen_x_;
\r
127 unsigned int screen_y_;
\r
128 unsigned int screen_width_;
\r
129 unsigned int screen_height_;
\r
130 size_t square_width_;
\r
131 size_t square_height_;
\r
133 sf::Window window_;
\r
135 safe_ptr<diagnostics::graph> graph_;
\r
136 boost::timer perf_timer_;
\r
137 boost::timer tick_timer_;
\r
139 caspar::high_prec_timer wait_timer_;
\r
141 tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>> frame_buffer_;
\r
143 boost::thread thread_;
\r
144 tbb::atomic<bool> is_running_;
\r
146 ffmpeg::filter filter_;
\r
148 ogl_consumer(const configuration& config, const core::video_format_desc& format_desc, int channel_index)
\r
150 , format_desc_(format_desc)
\r
151 , channel_index_(channel_index)
\r
154 , screen_width_(format_desc.width)
\r
155 , screen_height_(format_desc.height)
\r
156 , square_width_(format_desc.square_width)
\r
157 , square_height_(format_desc.square_height)
\r
158 , filter_(format_desc.field_mode == core::field_mode::progressive || !config.auto_deinterlace ? L"" : L"YADIF=1:-1", boost::assign::list_of(PIX_FMT_BGRA))
\r
160 if(format_desc_.format == core::video_format::ntsc && config_.aspect == configuration::aspect_4_3)
\r
162 // Use default values which are 4:3.
\r
166 if(config_.aspect == configuration::aspect_16_9)
\r
167 square_width_ = (format_desc.height*16)/9;
\r
168 else if(config_.aspect == configuration::aspect_4_3)
\r
169 square_width_ = (format_desc.height*4)/3;
\r
172 frame_buffer_.set_capacity(2);
\r
174 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
\r
175 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));
\r
176 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
\r
178 graph_->set_text(print());
\r
179 diagnostics::register_graph(graph_);
\r
181 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};
\r
182 std::vector<DISPLAY_DEVICE> displayDevices;
\r
183 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)
\r
184 displayDevices.push_back(d_device);
\r
186 if(config_.screen_index >= displayDevices.size())
\r
187 CASPAR_LOG(warning) << print() << L" Invalid screen-index: " << config_.screen_index;
\r
189 DEVMODE devmode = {};
\r
190 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))
\r
191 CASPAR_LOG(warning) << print() << L" Could not find display settings for screen-index: " << config_.screen_index;
\r
193 screen_x_ = devmode.dmPosition.x;
\r
194 screen_y_ = devmode.dmPosition.y;
\r
195 screen_width_ = config_.windowed ? square_width_ : devmode.dmPelsWidth;
\r
196 screen_height_ = config_.windowed ? square_height_ : devmode.dmPelsHeight;
\r
198 is_running_ = true;
\r
199 thread_ = boost::thread([this]{run();});
\r
204 is_running_ = false;
\r
205 frame_buffer_.try_push(make_safe<core::read_frame>());
\r
211 if(!GLEW_VERSION_2_1)
\r
212 BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));
\r
214 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(L"Screen consumer " + channel_and_format()), config_.windowed ? sf::Style::Resize | sf::Style::Close : sf::Style::Fullscreen);
\r
215 window_.ShowMouseCursor(false);
\r
216 window_.SetPosition(screen_x_, screen_y_);
\r
217 window_.SetSize(screen_width_, screen_height_);
\r
218 window_.SetActive();
\r
219 GL(glEnable(GL_TEXTURE_2D));
\r
220 GL(glDisable(GL_DEPTH_TEST));
\r
221 GL(glClearColor(0.0, 0.0, 0.0, 0.0));
\r
222 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));
\r
223 GL(glLoadIdentity());
\r
225 calculate_aspect();
\r
227 GL(glGenTextures(1, &texture_));
\r
228 GL(glBindTexture(GL_TEXTURE_2D, texture_));
\r
229 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
\r
230 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
\r
231 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));
\r
232 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));
\r
233 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));
\r
234 GL(glBindTexture(GL_TEXTURE_2D, 0));
\r
236 GL(glGenBuffers(2, pbos_.data()));
\r
238 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);
\r
239 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);
\r
240 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);
\r
241 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);
\r
242 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
\r
246 auto wglSwapIntervalEXT = reinterpret_cast<void(APIENTRY*)(int)>(wglGetProcAddress("wglSwapIntervalEXT"));
\r
247 if(wglSwapIntervalEXT)
\r
249 wglSwapIntervalEXT(1);
\r
250 CASPAR_LOG(info) << print() << " Successfully enabled vsync.";
\r
253 CASPAR_LOG(info) << print() << " Failed to enable vsync.";
\r
256 CASPAR_LOG(info) << print() << " Successfully Initialized.";
\r
262 glDeleteTextures(1, &texture_);
\r
264 BOOST_FOREACH(auto& pbo, pbos_)
\r
267 glDeleteBuffers(1, &pbo);
\r
283 while(window_.GetEvent(e))
\r
285 if(e.Type == sf::Event::Resized)
\r
286 calculate_aspect();
\r
287 else if(e.Type == sf::Event::Closed)
\r
288 is_running_ = false;
\r
291 safe_ptr<core::read_frame> frame;
\r
293 frame_buffer_.pop(frame);
\r
295 render_and_draw_frame(frame);
\r
297 graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);
\r
298 tick_timer_.restart();
\r
302 CASPAR_LOG_CURRENT_EXCEPTION();
\r
303 is_running_ = false;
\r
311 CASPAR_LOG_CURRENT_EXCEPTION();
\r
315 void try_sleep_almost_until_vblank()
\r
317 static const double THRESHOLD = 0.003;
\r
318 double threshold = config_.vsync ? THRESHOLD : 0.0;
\r
320 auto frame_time = 1.0 / (format_desc_.fps * format_desc_.field_count);
\r
322 wait_timer_.tick(frame_time - threshold);
\r
325 void wait_for_vblank_and_display()
\r
327 try_sleep_almost_until_vblank();
\r
329 // Make sure that the next tick measures the duration from this point in time.
\r
330 wait_timer_.tick(0.0);
\r
333 safe_ptr<AVFrame> get_av_frame()
\r
335 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
\r
336 avcodec_get_frame_defaults(av_frame.get());
\r
338 av_frame->linesize[0] = format_desc_.width*4;
\r
339 av_frame->format = PIX_FMT_BGRA;
\r
340 av_frame->width = format_desc_.width;
\r
341 av_frame->height = format_desc_.height;
\r
342 av_frame->interlaced_frame = format_desc_.field_mode != core::field_mode::progressive;
\r
343 av_frame->top_field_first = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;
\r
348 void render_and_draw_frame(const safe_ptr<core::read_frame>& frame)
\r
350 if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)
\r
353 perf_timer_.restart();
\r
354 auto av_frame = get_av_frame();
\r
355 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());
\r
357 filter_.push(av_frame);
\r
358 auto frames = filter_.poll_all();
\r
360 if (frames.empty())
\r
363 if (frames.size() == 1)
\r
365 render(frames[0], frame->image_data().size());
\r
366 graph_->set_value("frame-time", perf_timer_.elapsed() * format_desc_.fps * 0.5);
\r
368 wait_for_vblank_and_display(); // progressive frame
\r
370 else if (frames.size() == 2)
\r
372 render(frames[0], frame->image_data().size());
\r
373 double perf_elapsed = perf_timer_.elapsed();
\r
375 wait_for_vblank_and_display(); // field1
\r
377 perf_timer_.restart();
\r
378 render(frames[1], frame->image_data().size());
\r
379 perf_elapsed += perf_timer_.elapsed();
\r
380 graph_->set_value("frame-time", perf_elapsed * format_desc_.fps * 0.5);
\r
382 wait_for_vblank_and_display(); // field2
\r
386 void render(safe_ptr<AVFrame> av_frame, int image_data_size)
\r
388 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))
\r
390 const uint8_t *src_data[4] = {0};
\r
391 memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);
\r
392 const int src_linesizes[4] = {0};
\r
393 memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);
\r
395 auto av_frame2 = get_av_frame();
\r
396 av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);
\r
397 av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)
\r
399 av_freep(&av_frame2->data[0]);
\r
402 av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);
\r
405 glBindTexture(GL_TEXTURE_2D, texture_);
\r
407 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);
\r
408 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);
\r
410 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);
\r
411 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);
\r
413 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
\r
416 if(config_.key_only)
\r
417 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], image_data_size, 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);
\r
419 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], image_data_size);
\r
421 glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer
\r
424 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
\r
426 GL(glClear(GL_COLOR_BUFFER_BIT));
\r
428 glTexCoord2f(0.0f, 1.0f); glVertex2f(-width_, -height_);
\r
429 glTexCoord2f(1.0f, 1.0f); glVertex2f( width_, -height_);
\r
430 glTexCoord2f(1.0f, 0.0f); glVertex2f( width_, height_);
\r
431 glTexCoord2f(0.0f, 0.0f); glVertex2f(-width_, height_);
\r
434 glBindTexture(GL_TEXTURE_2D, 0);
\r
436 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());
\r
439 boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame)
\r
441 if (!frame_buffer_.try_push(frame))
\r
442 graph_->set_tag("dropped-frame");
\r
444 return wrap_as_future(is_running_.load());
\r
447 std::wstring channel_and_format() const
\r
449 return L"[" + boost::lexical_cast<std::wstring>(channel_index_) + L"|" + format_desc_.name + L"]";
\r
452 std::wstring print() const
\r
454 return config_.name + channel_and_format();
\r
457 void calculate_aspect()
\r
459 if(config_.windowed)
\r
461 screen_height_ = window_.GetHeight();
\r
462 screen_width_ = window_.GetWidth();
\r
465 GL(glViewport(0, 0, screen_width_, screen_height_));
\r
467 std::pair<float, float> target_ratio = None();
\r
468 if(config_.stretch == fill)
\r
469 target_ratio = Fill();
\r
470 else if(config_.stretch == uniform)
\r
471 target_ratio = Uniform();
\r
472 else if(config_.stretch == uniform_to_fill)
\r
473 target_ratio = UniformToFill();
\r
475 width_ = target_ratio.first;
\r
476 height_ = target_ratio.second;
\r
479 std::pair<float, float> None()
\r
481 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);
\r
482 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);
\r
484 return std::make_pair(width, height);
\r
487 std::pair<float, float> Uniform()
\r
489 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);
\r
490 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));
\r
491 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);
\r
493 return std::make_pair(width, height);
\r
496 std::pair<float, float> Fill()
\r
498 return std::make_pair(1.0f, 1.0f);
\r
501 std::pair<float, float> UniformToFill()
\r
503 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);
\r
504 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);
\r
505 float r_inv = 1.0f/std::min(wr, hr);
\r
507 float width = wr*r_inv;
\r
508 float height = hr*r_inv;
\r
510 return std::make_pair(width, height);
\r
515 struct ogl_consumer_proxy : public core::frame_consumer
\r
517 const configuration config_;
\r
518 std::unique_ptr<ogl_consumer> consumer_;
\r
522 ogl_consumer_proxy(const configuration& config)
\r
523 : config_(config){}
\r
525 ~ogl_consumer_proxy()
\r
529 auto str = print();
\r
531 CASPAR_LOG(info) << str << L" Successfully Uninitialized.";
\r
537 virtual void initialize(const core::video_format_desc& format_desc, int channel_index) override
\r
540 consumer_.reset(new ogl_consumer(config_, format_desc, channel_index));
\r
541 CASPAR_LOG(info) << print() << L" Successfully Initialized.";
\r
544 virtual boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame) override
\r
546 return consumer_->send(frame);
\r
549 virtual std::wstring print() const override
\r
551 return consumer_ ? consumer_->print() : L"[ogl_consumer]";
\r
554 virtual boost::property_tree::wptree info() const override
\r
556 boost::property_tree::wptree info;
\r
557 info.add(L"type", L"ogl-consumer");
\r
558 info.add(L"key-only", config_.key_only);
\r
559 info.add(L"windowed", config_.windowed);
\r
560 info.add(L"auto-deinterlace", config_.auto_deinterlace);
\r
564 virtual bool has_synchronization_clock() const override
\r
569 virtual size_t buffer_depth() const override
\r
574 virtual int index() const override
\r
576 return 600 + config_.screen_index;
\r
580 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)
\r
582 if(params.size() < 1 || params[0] != L"SCREEN")
\r
583 return core::frame_consumer::empty();
\r
585 configuration config;
\r
587 if(params.size() > 1)
\r
588 config.screen_index = lexical_cast_or_default<int>(params[1], config.screen_index);
\r
590 auto device_it = std::find(params.begin(), params.end(), L"DEVICE");
\r
591 if(device_it != params.end() && ++device_it != params.end())
\r
592 config.screen_index = boost::lexical_cast<int>(*device_it);
\r
594 config.windowed = std::find(params.begin(), params.end(), L"FULLSCREEN") == params.end();
\r
595 config.key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();
\r
597 auto name_it = std::find(params.begin(), params.end(), L"NAME");
\r
598 if(name_it != params.end() && ++name_it != params.end())
\r
599 config.name = *name_it;
\r
601 return make_safe<ogl_consumer_proxy>(config);
\r
604 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)
\r
606 configuration config;
\r
607 config.name = ptree.get(L"name", config.name);
\r
608 config.screen_index = ptree.get(L"device", config.screen_index+1)-1;
\r
609 config.windowed = ptree.get(L"windowed", config.windowed);
\r
610 config.key_only = ptree.get(L"key-only", config.key_only);
\r
611 config.auto_deinterlace = ptree.get(L"auto-deinterlace", config.auto_deinterlace);
\r
612 config.vsync = ptree.get(L"vsync", config.vsync);
\r
614 auto stretch_str = ptree.get(L"stretch", L"default");
\r
615 if(stretch_str == L"uniform")
\r
616 config.stretch = stretch::uniform;
\r
617 else if(stretch_str == L"uniform_to_fill")
\r
618 config.stretch = stretch::uniform_to_fill;
\r
620 auto aspect_str = ptree.get(L"aspect-ratio", L"default");
\r
621 if(aspect_str == L"16:9")
\r
622 config.aspect = configuration::aspect_16_9;
\r
623 else if(aspect_str == L"4:3")
\r
624 config.aspect = configuration::aspect_4_3;
\r
626 return make_safe<ogl_consumer_proxy>(config);
\r