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 \r
  26 #include <core/producer/frame/pixel_format.h>\r
  27 \r
  28 #include <common/gl/gl_check.h>\r
  29 \r
  30 #include <boost/range/algorithm.hpp>\r
  31 \r
  32 namespace caspar { namespace core {\r
  33                                                                                                                                                                                                                                                                                                                         \r
  34 struct write_frame::implementation : boost::noncopyable\r
  35 {                               \r
  36         std::vector<safe_ptr<host_buffer>> buffers_;\r
  37         std::vector<safe_ptr<device_buffer>> textures_;\r
  38         std::vector<short> audio_data_;\r
  39         const core::pixel_format_desc desc_;\r
  40         int tag_;\r
  41 \r
  42 public:\r
  43         implementation(int tag, const core::pixel_format_desc& desc, const std::vector<safe_ptr<host_buffer>>& buffers, const std::vector<safe_ptr<device_buffer>>& textures) \r
  44                 : desc_(desc)\r
  45                 , buffers_(buffers)\r
  46                 , textures_(textures)\r
  47                 , tag_(tag)\r
  48         {}\r
  49         \r
  50         void accept(write_frame& self, core::frame_visitor& visitor)\r
  51         {\r
  52                 visitor.begin(self);\r
  53                 visitor.visit(self);\r
  54                 visitor.end();\r
  55         }\r
  56 \r
  57         boost::iterator_range<unsigned char*> image_data(size_t index)\r
  58         {\r
  59                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  60                         return boost::iterator_range<const unsigned char*>();\r
  61                 auto ptr = static_cast<unsigned char*>(buffers_[index]->data());\r
  62                 return boost::iterator_range<unsigned char*>(ptr, ptr+buffers_[index]->size());\r
  63         }\r
  64 \r
  65         const boost::iterator_range<const unsigned char*> image_data(size_t index) const\r
  66         {\r
  67                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  68                         return boost::iterator_range<const unsigned char*>();\r
  69                 auto ptr = static_cast<const unsigned char*>(buffers_[index]->data());\r
  70                 return boost::iterator_range<const unsigned char*>(ptr, ptr+buffers_[index]->size());\r
  71         }\r
  72 \r
  73         void commit()\r
  74         {\r
  75                 for(size_t n = 0; n < buffers_.size(); ++n)\r
  76                         commit(n);\r
  77         }\r
  78 \r
  79         void commit(size_t plane_index)\r
  80         {\r
  81                 if(plane_index >= buffers_.size())\r
  82                         return;\r
  83                                 \r
  84                 auto texture = textures_[plane_index];\r
  85                 auto buffer = std::move(buffers_[plane_index]);\r
  86 \r
  87                 ogl_device::begin_invoke([=]\r
  88                 {\r
  89                         texture->read(*buffer);\r
  90                 });\r
  91         }\r
  92 };\r
  93         \r
  94 write_frame::write_frame(int tag, const core::pixel_format_desc& desc, const std::vector<safe_ptr<host_buffer>>& buffers, const std::vector<safe_ptr<device_buffer>>& textures) : impl_(new implementation(tag, desc, buffers, textures)){}\r
  95 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
  96 \r
  97 boost::iterator_range<unsigned char*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
  98 std::vector<short>& write_frame::audio_data() { return impl_->audio_data_; }\r
  99 const boost::iterator_range<const unsigned char*> write_frame::image_data(size_t index) const\r
 100 {\r
 101         return boost::iterator_range<const unsigned char*>(impl_->image_data(index).begin(), impl_->image_data(index).end());\r
 102 }\r
 103 const boost::iterator_range<const short*> write_frame::audio_data() const\r
 104 {\r
 105         return boost::iterator_range<const short*>(impl_->audio_data_.data(), impl_->audio_data_.data() + impl_->audio_data_.size());\r
 106 }\r
 107 int write_frame::tag() const {return impl_->tag_;}\r
 108 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 109 const std::vector<safe_ptr<device_buffer>>& write_frame::get_textures() const{return impl_->textures_;}\r
 110 const std::vector<safe_ptr<host_buffer>>& write_frame::get_buffers() const{return impl_->buffers_;}\r
 111 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 112 void write_frame::commit(){impl_->commit();}\r
 113 }}