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         std::shared_ptr<ogl_device>                                     ogl_;\r
  38         std::vector<std::shared_ptr<host_buffer>>       buffers_;\r
  39         std::vector<safe_ptr<device_buffer>>            textures_;\r
  40         audio_buffer                                                            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(const safe_ptr<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                 std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(buffers_), [&](const core::pixel_format_desc::plane& plane)\r
  57                 {\r
  58                         return ogl_->create_host_buffer(plane.size, host_buffer::write_only);\r
  59                 });\r
  60                 std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(textures_), [&](const core::pixel_format_desc::plane& plane)\r
  61                 {\r
  62                         return ogl_->create_device_buffer(plane.width, plane.height, plane.channels);   \r
  63                 });\r
  64         }\r
  65                         \r
  66         void accept(write_frame& self, core::frame_visitor& visitor)\r
  67         {\r
  68                 visitor.begin(self);\r
  69                 visitor.visit(self);\r
  70                 visitor.end();\r
  71         }\r
  72 \r
  73         boost::iterator_range<uint8_t*> image_data(size_t index)\r
  74         {\r
  75                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  76                         return boost::iterator_range<uint8_t*>();\r
  77                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  78                 return boost::iterator_range<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                 auto texture = textures_.at(plane_index);\r
  98                 \r
  99                 ogl_->begin_invoke([=]\r
 100                 {                       \r
 101                         buffer->unmap();\r
 102                         buffer->bind();\r
 103                         texture->begin_read();\r
 104                         buffer->unbind();\r
 105                 }, high_priority);\r
 106         }\r
 107 };\r
 108         \r
 109 write_frame::write_frame(const void* tag) : impl_(new implementation(tag)){}\r
 110 write_frame::write_frame(const safe_ptr<ogl_device>& ogl, const void* tag, const core::pixel_format_desc& desc) \r
 111         : impl_(new implementation(ogl, tag, desc)){}\r
 112 write_frame::write_frame(const write_frame& other) : impl_(new implementation(*other.impl_)){}\r
 113 write_frame::write_frame(write_frame&& other) : impl_(std::move(other.impl_)){}\r
 114 write_frame& write_frame::operator=(const write_frame& other)\r
 115 {\r
 116         basic_frame temp(other);\r
 117         temp.swap(*this);\r
 118         return *this;\r
 119 }\r
 120 write_frame& write_frame::operator=(write_frame&& other)\r
 121 {\r
 122         write_frame temp(std::move(other));\r
 123         temp.swap(*this);\r
 124         return *this;\r
 125 }\r
 126 void write_frame::swap(write_frame& other){impl_.swap(other.impl_);}\r
 127 \r
 128 boost::iterator_range<uint8_t*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
 129 audio_buffer& write_frame::audio_data() { return impl_->audio_data_; }\r
 130 const boost::iterator_range<const int32_t*> write_frame::audio_data() const\r
 131 {\r
 132         return boost::iterator_range<const int32_t*>(impl_->audio_data_.data(), impl_->audio_data_.data() + impl_->audio_data_.size());\r
 133 }\r
 134 const void* write_frame::tag() const {return impl_->tag_;}\r
 135 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 136 const std::vector<safe_ptr<device_buffer>>& write_frame::get_textures() const{return impl_->textures_;}\r
 137 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 138 void write_frame::commit(){impl_->commit();}\r
 139 void write_frame::set_type(const field_mode::type& mode){impl_->mode_ = mode;}\r
 140 core::field_mode::type write_frame::get_type() const{return impl_->mode_;}\r
 141 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 142 \r
 143 }}