2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG.
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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21 #include "ogl_consumer.h"
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23 #include <GL/glew.h>
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24 #include <SFML/Window.hpp>
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26 #include <common/diagnostics/graph.h>
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27 #include <common/gl/gl_check.h>
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28 #include <common/log/log.h>
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29 #include <common/memory/safe_ptr.h>
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30 #include <common/memory/memcpy.h>
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31 #include <common/memory/memshfl.h>
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32 #include <common/utility/timer.h>
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33 #include <common/utility/string.h>
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35 #include <ffmpeg/producer/filter/filter.h>
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37 #include <core/video_format.h>
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38 #include <core/mixer/read_frame.h>
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39 #include <core/consumer/frame_consumer.h>
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41 #include <boost/timer.hpp>
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42 #include <boost/circular_buffer.hpp>
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43 #include <boost/foreach.hpp>
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44 #include <boost/thread.hpp>
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46 #include <tbb/atomic.h>
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47 #include <tbb/concurrent_queue.h>
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49 #include <boost/assign.hpp>
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51 #include <algorithm>
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54 #if defined(_MSC_VER)
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55 #pragma warning (push)
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56 #pragma warning (disable : 4244)
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60 #define __STDC_CONSTANT_MACROS
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61 #define __STDC_LIMIT_MACROS
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62 #include <libavcodec/avcodec.h>
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63 #include <libavutil/imgutils.h>
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65 #if defined(_MSC_VER)
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66 #pragma warning (pop)
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69 namespace caspar { namespace ogl {
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79 struct configuration
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81 size_t screen_index;
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84 bool auto_deinterlace;
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91 , auto_deinterlace(true)
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97 struct ogl_consumer : boost::noncopyable
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99 const configuration config_;
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100 core::video_format_desc format_desc_;
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103 std::vector<GLuint> pbos_;
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107 unsigned int screen_x_;
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108 unsigned int screen_y_;
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109 unsigned int screen_width_;
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110 unsigned int screen_height_;
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111 size_t square_width_;
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112 size_t square_height_;
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114 sf::Window window_;
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116 safe_ptr<diagnostics::graph> graph_;
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117 boost::timer perf_timer_;
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118 boost::timer tick_timer_;
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120 tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>> frame_buffer_;
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122 boost::thread thread_;
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123 tbb::atomic<bool> is_running_;
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126 ffmpeg::filter filter_;
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128 ogl_consumer(const configuration& config, const core::video_format_desc& format_desc)
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130 , format_desc_(format_desc)
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133 , screen_width_(format_desc.width)
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134 , screen_height_(format_desc.height)
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135 , square_width_(format_desc.square_width)
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136 , square_height_(format_desc.square_height)
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137 , filter_(format_desc.field_mode == core::field_mode::progressive || !config.auto_deinterlace ? L"" : L"YADIF=0:-1", boost::assign::list_of(PIX_FMT_BGRA))
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139 frame_buffer_.set_capacity(2);
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141 graph_->add_guide("tick-time", 0.5);
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142 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
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143 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));
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144 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
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145 graph_->set_text(print());
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146 diagnostics::register_graph(graph_);
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148 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};
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149 std::vector<DISPLAY_DEVICE> displayDevices;
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150 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)
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151 displayDevices.push_back(d_device);
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153 if(config_.screen_index >= displayDevices.size())
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154 BOOST_THROW_EXCEPTION(out_of_range() << arg_name_info("screen_index_") << msg_info(narrow(print())));
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156 DEVMODE devmode = {};
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157 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))
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158 BOOST_THROW_EXCEPTION(invalid_operation() << arg_name_info("screen_index") << msg_info(narrow(print()) + " EnumDisplaySettings"));
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160 screen_x_ = devmode.dmPosition.x;
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161 screen_y_ = devmode.dmPosition.y;
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162 screen_width_ = config_.windowed ? square_width_ : devmode.dmPelsWidth;
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163 screen_height_ = config_.windowed ? square_height_ : devmode.dmPelsHeight;
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165 is_running_ = true;
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166 thread_ = boost::thread([this]{run();});
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171 is_running_ = false;
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172 frame_buffer_.try_push(make_safe<core::read_frame>());
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178 if(!GLEW_VERSION_2_1)
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179 BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));
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181 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), config_.windowed ? sf::Style::Resize : sf::Style::Fullscreen);
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182 window_.ShowMouseCursor(false);
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183 window_.SetPosition(screen_x_, screen_y_);
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184 window_.SetSize(screen_width_, screen_height_);
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185 window_.SetActive();
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186 GL(glEnable(GL_TEXTURE_2D));
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187 GL(glDisable(GL_DEPTH_TEST));
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188 GL(glClearColor(0.0, 0.0, 0.0, 0.0));
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189 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));
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190 GL(glLoadIdentity());
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192 calculate_aspect();
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194 GL(glGenTextures(1, &texture_));
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195 GL(glBindTexture(GL_TEXTURE_2D, texture_));
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196 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
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197 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
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198 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));
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199 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));
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200 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));
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201 GL(glBindTexture(GL_TEXTURE_2D, 0));
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203 GL(glGenBuffers(2, pbos_.data()));
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205 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);
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206 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);
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207 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);
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208 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);
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209 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
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211 CASPAR_LOG(info) << print() << " Sucessfully Initialized.";
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217 glDeleteTextures(1, &texture_);
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219 BOOST_FOREACH(auto& pbo, pbos_)
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222 glDeleteBuffers(1, &pbo);
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225 CASPAR_LOG(info) << print() << " Sucessfully Uninitialized.";
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240 while(window_.GetEvent(e))
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242 if(e.Type == sf::Event::Resized)
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243 calculate_aspect();
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246 safe_ptr<core::read_frame> frame;
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247 frame_buffer_.pop(frame);
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249 perf_timer_.restart();
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251 graph_->update_value("frame-time", perf_timer_.elapsed()*format_desc_.fps*0.5);
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255 graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);
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256 tick_timer_.restart();
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260 CASPAR_LOG_CURRENT_EXCEPTION();
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261 is_running_ = false;
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269 CASPAR_LOG_CURRENT_EXCEPTION();
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273 safe_ptr<AVFrame> get_av_frame()
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275 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
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276 avcodec_get_frame_defaults(av_frame.get());
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278 av_frame->linesize[0] = format_desc_.width*4;
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279 av_frame->format = PIX_FMT_BGRA;
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280 av_frame->width = format_desc_.width;
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281 av_frame->height = format_desc_.height;
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282 av_frame->interlaced_frame = format_desc_.field_mode != core::field_mode::progressive;
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283 av_frame->top_field_first = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;
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288 void render(const safe_ptr<core::read_frame>& frame)
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290 if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)
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293 auto av_frame = get_av_frame();
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294 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());
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296 filter_.push(av_frame);
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297 auto frames = filter_.poll_all();
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302 av_frame = frames[0];
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304 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))
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306 const uint8_t *src_data[4] = {0};
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307 memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);
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308 const int src_linesizes[4] = {0};
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309 memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);
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311 auto av_frame2 = get_av_frame();
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312 av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);
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313 av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)
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315 av_freep(&av_frame2->data[0]);
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318 av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);
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321 glBindTexture(GL_TEXTURE_2D, texture_);
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323 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);
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324 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);
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326 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);
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327 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);
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329 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
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332 if(config_.key_only)
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333 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);
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335 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size());
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337 glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer
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340 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
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342 GL(glClear(GL_COLOR_BUFFER_BIT));
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344 glTexCoord2f(0.0f, 1.0f); glVertex2f(-width_, -height_);
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345 glTexCoord2f(1.0f, 1.0f); glVertex2f( width_, -height_);
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346 glTexCoord2f(1.0f, 0.0f); glVertex2f( width_, height_);
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347 glTexCoord2f(0.0f, 0.0f); glVertex2f(-width_, height_);
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350 glBindTexture(GL_TEXTURE_2D, 0);
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352 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());
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355 void send(const safe_ptr<core::read_frame>& frame)
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357 if(!frame_buffer_.try_push(frame))
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358 graph_->add_tag("dropped-frame");
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361 std::wstring print() const
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363 return L"ogl[" + boost::lexical_cast<std::wstring>(config_.screen_index) + L"|" + format_desc_.name + L"]";
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366 void calculate_aspect()
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368 if(config_.windowed)
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370 screen_height_ = window_.GetHeight();
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371 screen_width_ = window_.GetWidth();
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374 GL(glViewport(0, 0, screen_width_, screen_height_));
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376 std::pair<float, float> target_ratio = None();
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377 if(config_.stretch == fill)
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378 target_ratio = Fill();
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379 else if(config_.stretch == uniform)
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380 target_ratio = Uniform();
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381 else if(config_.stretch == uniform_to_fill)
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382 target_ratio = UniformToFill();
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384 width_ = target_ratio.first;
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385 height_ = target_ratio.second;
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388 std::pair<float, float> None()
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390 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);
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391 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);
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393 return std::make_pair(width, height);
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396 std::pair<float, float> Uniform()
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398 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);
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399 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));
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400 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);
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402 return std::make_pair(width, height);
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405 std::pair<float, float> Fill()
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407 return std::make_pair(1.0f, 1.0f);
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410 std::pair<float, float> UniformToFill()
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412 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);
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413 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);
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414 float r_inv = 1.0f/std::min(wr, hr);
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416 float width = wr*r_inv;
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417 float height = hr*r_inv;
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419 return std::make_pair(width, height);
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424 struct ogl_consumer_proxy : public core::frame_consumer
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426 const configuration config_;
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427 std::unique_ptr<ogl_consumer> consumer_;
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431 ogl_consumer_proxy(const configuration& config)
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432 : config_(config){}
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434 virtual void initialize(const core::video_format_desc& format_desc)
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437 consumer_.reset(new ogl_consumer(config_, format_desc));
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440 virtual bool send(const safe_ptr<core::read_frame>& frame)
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442 consumer_->send(frame);
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446 virtual std::wstring print() const
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448 return consumer_->print();
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451 virtual bool has_synchronization_clock() const
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456 virtual size_t buffer_depth() const
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462 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)
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464 if(params.size() < 1 || params[0] != L"SCREEN")
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465 return core::frame_consumer::empty();
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467 configuration config;
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469 if(params.size() > 1)
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470 config.screen_index = lexical_cast_or_default<int>(params[2], config.screen_index);
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472 if(params.size() > 2)
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473 config.windowed = lexical_cast_or_default<bool>(params[3], config.windowed);
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475 config.key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();
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477 return make_safe<ogl_consumer_proxy>(config);
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480 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::ptree& ptree)
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482 configuration config;
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483 config.screen_index = ptree.get("device", config.screen_index+1)-1;
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484 config.windowed = ptree.get("windowed", config.windowed);
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485 config.key_only = ptree.get("key-only", config.key_only);
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486 config.auto_deinterlace = ptree.get("auto-deinterlace", config.auto_deinterlace);
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488 auto stretch_str = ptree.get("stretch", "default");
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489 if(stretch_str == "uniform")
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490 config.stretch = stretch::uniform;
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491 else if(stretch_str == "uniform_to_fill")
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492 config.stretch = stretch::uniform_to_fill;
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494 return make_safe<ogl_consumer_proxy>(config);
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