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 #include <boost/lexical_cast.hpp>\r
  32 \r
  33 namespace caspar { namespace core {\r
  34                                                                                                                                                                                                                                                                                                                         \r
  35 struct write_frame::implementation\r
  36 {                               \r
  37         ogl_device*                                                                     ogl_;\r
  38         std::vector<std::shared_ptr<host_buffer>>       buffers_;\r
  39         std::vector<safe_ptr<device_buffer>>            textures_;\r
  40         std::vector<int16_t>                                            audio_data_;\r
  41         const core::pixel_format_desc                           desc_;\r
  42         const void*                                                                     tag_;\r
  43         core::field_mode::type                                          mode_;\r
  44 \r
  45         implementation(const void* tag)\r
  46                 : tag_(tag)\r
  47         {\r
  48         }\r
  49 \r
  50         implementation(ogl_device& ogl, const void* tag, const core::pixel_format_desc& desc) \r
  51                 : ogl_(&ogl)\r
  52                 , desc_(desc)\r
  53                 , tag_(tag)\r
  54                 , mode_(core::field_mode::progressive)\r
  55         {\r
  56                 ogl_->invoke([&]\r
  57                 {\r
  58                         std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(buffers_), [&](const core::pixel_format_desc::plane& plane)\r
  59                         {\r
  60                                 return ogl_->create_host_buffer(plane.size, host_buffer::write_only);\r
  61                         });\r
  62                         std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(textures_), [&](const core::pixel_format_desc::plane& plane)\r
  63                         {\r
  64                                 return ogl_->create_device_buffer(plane.width, plane.height, plane.channels);   \r
  65                         });\r
  66                 }, high_priority);\r
  67         }\r
  68                         \r
  69         void accept(write_frame& self, core::frame_visitor& visitor)\r
  70         {\r
  71                 visitor.begin(self);\r
  72                 visitor.visit(self);\r
  73                 visitor.end();\r
  74         }\r
  75 \r
  76         boost::iterator_range<uint8_t*> image_data(size_t index)\r
  77         {\r
  78                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  79                         return boost::iterator_range<const uint8_t*>();\r
  80                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  81                 return boost::iterator_range<uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  82         }\r
  83 \r
  84         const boost::iterator_range<const uint8_t*> image_data(size_t index) const\r
  85         {\r
  86                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  87                         return boost::iterator_range<const uint8_t*>();\r
  88                 auto ptr = static_cast<const uint8_t*>(buffers_[index]->data());\r
  89                 return boost::iterator_range<const uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  90         }\r
  91 \r
  92         void commit()\r
  93         {\r
  94                 for(size_t n = 0; n < buffers_.size(); ++n)\r
  95                         commit(n);\r
  96         }\r
  97 \r
  98         void commit(size_t plane_index)\r
  99         {\r
 100                 if(plane_index >= buffers_.size())\r
 101                         return;\r
 102                                 \r
 103                 auto buffer = std::move(buffers_[plane_index]); // Release buffer once done.\r
 104 \r
 105                 if(!buffer)\r
 106                         return;\r
 107 \r
 108                 auto texture = textures_.at(plane_index);\r
 109                 \r
 110                 ogl_->begin_invoke([=]\r
 111                 {                       \r
 112                         buffer->unmap();\r
 113                         buffer->bind();\r
 114                         texture->begin_read();\r
 115                         buffer->unbind();\r
 116                 }, high_priority);\r
 117         }\r
 118 \r
 119         std::wstring print() const\r
 120         {\r
 121                 return L"write_frame[" + boost::lexical_cast<std::wstring>(tag_) + L"]";\r
 122         }\r
 123 };\r
 124         \r
 125 write_frame::write_frame(const void* tag) : impl_(new implementation(tag)){}\r
 126 write_frame::write_frame(ogl_device& ogl, const void* tag, const core::pixel_format_desc& desc) \r
 127         : impl_(new implementation(ogl, tag, desc)){}\r
 128 write_frame::write_frame(const write_frame& other) : impl_(new implementation(*other.impl_)){}\r
 129 write_frame::write_frame(write_frame&& other) : impl_(std::move(*other.impl_)){}\r
 130 write_frame& write_frame::operator=(const write_frame& other)\r
 131 {\r
 132         basic_frame temp(other);\r
 133         temp.swap(*this);\r
 134         return *this;\r
 135 }\r
 136 write_frame& write_frame::operator=(write_frame&& other)\r
 137 {\r
 138         write_frame temp(std::move(other));\r
 139         temp.swap(*this);\r
 140         return *this;\r
 141 }\r
 142 void write_frame::swap(write_frame& other){impl_.swap(other.impl_);}\r
 143 \r
 144 boost::iterator_range<uint8_t*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
 145 std::vector<int16_t>& write_frame::audio_data() { return impl_->audio_data_; }\r
 146 const boost::iterator_range<const uint8_t*> write_frame::image_data(size_t index) const\r
 147 {\r
 148         return boost::iterator_range<const uint8_t*>(impl_->image_data(index).begin(), impl_->image_data(index).end());\r
 149 }\r
 150 const boost::iterator_range<const int16_t*> write_frame::audio_data() const\r
 151 {\r
 152         return boost::iterator_range<const int16_t*>(impl_->audio_data_.data(), impl_->audio_data_.data() + impl_->audio_data_.size());\r
 153 }\r
 154 const void* write_frame::tag() const {return impl_->tag_;}\r
 155 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 156 const std::vector<safe_ptr<device_buffer>>& write_frame::get_textures() const{return impl_->textures_;}\r
 157 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 158 void write_frame::commit(){impl_->commit();}\r
 159 void write_frame::set_type(const field_mode::type& mode){impl_->mode_ = mode;}\r
 160 core::field_mode::type write_frame::get_type() const{return impl_->mode_;}\r
 161 \r
 162 std::wstring write_frame::print() const{return impl_->print();}\r
 163 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 164 \r
 165 }}