git.sesse.net Git - casparcg/blob - accelerator/ogl/write_frame.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "write_frame.h"\r
  25 \r
  26 #include "context.h"\r
  27 #include "host_buffer.h"\r
  28 #include "device_buffer.h"\r
  29 \r
  30 #include <common/except.h>\r
  31 #include <core/frame/frame_visitor.h>\r
  32 #include <core/frame/pixel_format.h>\r
  33 \r
  34 #include <boost/lexical_cast.hpp>\r
  35 \r
  36 namespace caspar { namespace accelerator { namespace ogl {\r
  37                                                                                                                                                                                                                                                                                                                         \r
  38 struct write_frame::impl : boost::noncopyable\r
  39 {                       \r
  40         std::shared_ptr<context>                                                ogl_;\r
  41         std::vector<spl::shared_ptr<ogl::host_buffer>>  buffers_;\r
  42         core::audio_buffer                                                              audio_data_;\r
  43         const core::pixel_format_desc                                   desc_;\r
  44         const void*                                                                             tag_;\r
  45 \r
  46         impl(const void* tag)\r
  47                 : desc_(core::pixel_format::invalid)\r
  48                 , tag_(tag)             \r
  49         {\r
  50         }\r
  51 \r
  52         impl(const spl::shared_ptr<ogl::context>& ogl, const void* tag, const core::pixel_format_desc& desc) \r
  53                 : ogl_(ogl)\r
  54                 , desc_(desc)\r
  55                 , tag_(tag)\r
  56         {\r
  57                 std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(buffers_), [&](const core::pixel_format_desc::plane& plane)\r
  58                 {\r
  59                         return ogl_->create_host_buffer(plane.size, ogl::host_buffer::usage::write_only);\r
  60                 });\r
  61         }\r
  62                         \r
  63         void accept(write_frame& self, core::frame_visitor& visitor)\r
  64         {\r
  65                 visitor.push(self.get_frame_transform());\r
  66                 visitor.visit(self);\r
  67                 visitor.pop();\r
  68         }\r
  69 \r
  70         boost::iterator_range<uint8_t*> image_data(int index)\r
  71         {\r
  72                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  73                         BOOST_THROW_EXCEPTION(out_of_range());\r
  74                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  75                 return boost::iterator_range<uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  76         }\r
  77 };\r
  78         \r
  79 write_frame::write_frame(const void* tag) : impl_(new impl(tag)){}\r
  80 write_frame::write_frame(const spl::shared_ptr<ogl::context>& ogl, const void* tag, const core::pixel_format_desc& desc) \r
  81         : impl_(new impl(ogl, tag, desc)){}\r
  82 write_frame::write_frame(write_frame&& other) : impl_(std::move(other.impl_)){}\r
  83 write_frame& write_frame::operator=(write_frame&& other)\r
  84 {\r
  85         impl_ = std::move(other.impl_);\r
  86         return *this;\r
  87 }\r
  88 void write_frame::swap(write_frame& other){impl_.swap(other.impl_);}\r
  89 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
  90 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
  91 const boost::iterator_range<const uint8_t*> write_frame::image_data(int index) const{return impl_->image_data(index);}\r
  92 const core::audio_buffer& write_frame::audio_data() const{return impl_->audio_data_;}\r
  93 const boost::iterator_range<uint8_t*> write_frame::image_data(int index){return impl_->image_data(index);}\r
  94 core::audio_buffer& write_frame::audio_data(){return impl_->audio_data_;}\r
  95 double write_frame::get_frame_rate() const{return 0.0;} // TODO: what's this?\r
  96 int write_frame::width() const{return impl_->desc_.planes.at(0).width;}\r
  97 int write_frame::height() const{return impl_->desc_.planes.at(0).height;}                                               \r
  98 const void* write_frame::tag() const{return impl_->tag_;}       \r
  99 std::vector<spl::shared_ptr<ogl::host_buffer>> write_frame::get_buffers(){return impl_->buffers_;}\r
 100 \r
 101 }}}