git.sesse.net Git - casparcg/blob - core/mixer/write_frame.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\r
   5 *\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
  10 *\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
  15 \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
  18 *\r
  19 */\r
  20 #include "../stdafx.h"\r
  21 \r
  22 #include "write_frame.h"\r
  23 \r
  24 #include "gpu/ogl_device.h"\r
  25 #include "gpu/host_buffer.h"\r
  26 #include "gpu/device_buffer.h"\r
  27 \r
  28 #include <core/producer/frame/frame_visitor.h>\r
  29 #include <core/producer/frame/pixel_format.h>\r
  30 \r
  31 namespace caspar { namespace core {\r
  32                                                                                                                                                                                                                                                                                                                         \r
  33 struct write_frame::implementation\r
  34 {                               \r
  35         ogl_device&                                                                             ogl_;\r
  36         std::vector<std::shared_ptr<host_buffer>>               buffers_;\r
  37         std::array<std::shared_ptr<device_buffer>, 4>   textures_;\r
  38         std::vector<int16_t>                                                    audio_data_;\r
  39         const core::pixel_format_desc                                   desc_;\r
  40         int                                                                                             tag_;\r
  41         core::video_mode::type                                                  mode_;\r
  42 \r
  43         implementation(ogl_device& ogl, int tag, const core::pixel_format_desc& desc) \r
  44                 : ogl_(ogl)\r
  45                 , desc_(desc)\r
  46                 , tag_(tag)\r
  47                 , mode_(core::video_mode::progressive)\r
  48         {\r
  49                 ogl_.invoke([&]\r
  50                 {\r
  51                         std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(buffers_), [&](const core::pixel_format_desc::plane& plane)\r
  52                         {\r
  53                                 return ogl_.create_host_buffer(plane.size, host_buffer::write_only);\r
  54                         });\r
  55                 }, high_priority);\r
  56         }\r
  57                         \r
  58         void accept(write_frame& self, core::frame_visitor& visitor)\r
  59         {\r
  60                 visitor.begin(self);\r
  61                 visitor.visit(self);\r
  62                 visitor.end();\r
  63         }\r
  64 \r
  65         boost::iterator_range<uint8_t*> image_data(size_t index)\r
  66         {\r
  67                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  68                         return boost::iterator_range<const uint8_t*>();\r
  69                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  70                 return boost::iterator_range<uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  71         }\r
  72 \r
  73         const boost::iterator_range<const uint8_t*> image_data(size_t index) const\r
  74         {\r
  75                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  76                         return boost::iterator_range<const uint8_t*>();\r
  77                 auto ptr = static_cast<const uint8_t*>(buffers_[index]->data());\r
  78                 return boost::iterator_range<const uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  79         }\r
  80 \r
  81         void commit()\r
  82         {\r
  83                 for(size_t n = 0; n < buffers_.size(); ++n)\r
  84                         commit(n);\r
  85         }\r
  86 \r
  87         void commit(size_t plane_index)\r
  88         {\r
  89                 if(plane_index >= buffers_.size())\r
  90                         return;\r
  91                                 \r
  92                 auto buffer = std::move(buffers_[plane_index]); // Release buffer once done.\r
  93 \r
  94                 if(!buffer)\r
  95                         return;\r
  96                 \r
  97                 ogl_.begin_invoke([=]\r
  98                 {\r
  99                         auto plane = desc_.planes[plane_index];\r
 100                         textures_[plane_index] = ogl_.create_device_buffer(plane.width, plane.height, plane.channels);                  \r
 101                         textures_[plane_index]->read(*buffer);\r
 102                 }, high_priority);\r
 103         }\r
 104 };\r
 105         \r
 106 write_frame::write_frame(ogl_device& ogl, int32_t tag, const core::pixel_format_desc& desc) \r
 107         : impl_(new implementation(ogl, tag, desc)){}\r
 108 write_frame::write_frame(const write_frame& other) : impl_(new implementation(*other.impl_)){}\r
 109 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 110 \r
 111 boost::iterator_range<uint8_t*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
 112 std::vector<int16_t>& write_frame::audio_data() { return impl_->audio_data_; }\r
 113 const boost::iterator_range<const uint8_t*> write_frame::image_data(size_t index) const\r
 114 {\r
 115         return boost::iterator_range<const uint8_t*>(impl_->image_data(index).begin(), impl_->image_data(index).end());\r
 116 }\r
 117 const boost::iterator_range<const int16_t*> write_frame::audio_data() const\r
 118 {\r
 119         return boost::iterator_range<const int16_t*>(impl_->audio_data_.data(), impl_->audio_data_.data() + impl_->audio_data_.size());\r
 120 }\r
 121 int write_frame::tag() const {return impl_->tag_;}\r
 122 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 123 const std::vector<safe_ptr<device_buffer>> write_frame::get_textures() const\r
 124 {\r
 125         std::vector<safe_ptr<device_buffer>> textures;\r
 126         BOOST_FOREACH(auto texture, impl_->textures_)\r
 127         {\r
 128                 if(texture)\r
 129                         textures.push_back(make_safe(texture));\r
 130         }\r
 131 \r
 132         return textures;\r
 133 }\r
 134 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 135 void write_frame::commit(){impl_->commit();}\r
 136 void write_frame::set_type(const video_mode::type& mode){impl_->mode_ = mode;}\r
 137 core::video_mode::type write_frame::get_type() const{return impl_->mode_;}\r
 138 \r
 139 }}