git.sesse.net Git - casparcg/blob - core/mixer/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 "gpu/ogl_device.h"\r
  27 #include "gpu/host_buffer.h"\r
  28 #include "gpu/device_buffer.h"\r
  29 \r
  30 #include <core/producer/frame/frame_visitor.h>\r
  31 #include <core/producer/frame/pixel_format.h>\r
  32 \r
  33 #include <boost/lexical_cast.hpp>\r
  34 \r
  35 namespace caspar { namespace core {\r
  36                                                                                                                                                                                                                                                                                                                         \r
  37 struct write_frame::implementation\r
  38 {                               \r
  39         std::shared_ptr<ogl_device>                                     ogl_;\r
  40         std::vector<std::shared_ptr<host_buffer>>       buffers_;\r
  41         std::vector<safe_ptr<device_buffer>>            textures_;\r
  42         audio_buffer                                                            audio_data_;\r
  43         const core::pixel_format_desc                           desc_;\r
  44         const void*                                                                     tag_;\r
  45         core::field_mode::type                                          mode_;\r
  46 \r
  47         implementation(const void* tag)\r
  48                 : tag_(tag)\r
  49         {\r
  50         }\r
  51 \r
  52         implementation(const safe_ptr<ogl_device>& ogl, const void* tag, const core::pixel_format_desc& desc) \r
  53                 : ogl_(ogl)\r
  54                 , desc_(desc)\r
  55                 , tag_(tag)\r
  56                 , mode_(core::field_mode::progressive)\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         }\r
  67                         \r
  68         void accept(write_frame& self, core::frame_visitor& visitor)\r
  69         {\r
  70                 visitor.begin(self);\r
  71                 visitor.visit(self);\r
  72                 visitor.end();\r
  73         }\r
  74 \r
  75         boost::iterator_range<uint8_t*> image_data(size_t index)\r
  76         {\r
  77                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  78                         return boost::iterator_range<uint8_t*>();\r
  79                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  80                 return boost::iterator_range<uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  81         }\r
  82         \r
  83         void commit()\r
  84         {\r
  85                 for(size_t n = 0; n < buffers_.size(); ++n)\r
  86                         commit(n);\r
  87         }\r
  88 \r
  89         void commit(size_t plane_index)\r
  90         {\r
  91                 if(plane_index >= buffers_.size())\r
  92                         return;\r
  93                                 \r
  94                 auto buffer = std::move(buffers_[plane_index]); // Release buffer once done.\r
  95 \r
  96                 if(!buffer)\r
  97                         return;\r
  98 \r
  99                 auto texture = textures_.at(plane_index);\r
 100                 \r
 101                 ogl_->begin_invoke([=]\r
 102                 {                       \r
 103                         buffer->unmap();\r
 104                         buffer->bind();\r
 105                         texture->begin_read();\r
 106                         buffer->unbind();\r
 107                 }, high_priority);\r
 108         }\r
 109 };\r
 110         \r
 111 write_frame::write_frame(const void* tag) : impl_(new implementation(tag)){}\r
 112 write_frame::write_frame(const safe_ptr<ogl_device>& ogl, const void* tag, const core::pixel_format_desc& desc) \r
 113         : impl_(new implementation(ogl, tag, desc)){}\r
 114 write_frame::write_frame(const write_frame& other) : impl_(new implementation(*other.impl_)){}\r
 115 write_frame::write_frame(write_frame&& other) : impl_(std::move(other.impl_)){}\r
 116 write_frame& write_frame::operator=(const write_frame& other)\r
 117 {\r
 118         basic_frame temp(other);\r
 119         temp.swap(*this);\r
 120         return *this;\r
 121 }\r
 122 write_frame& write_frame::operator=(write_frame&& other)\r
 123 {\r
 124         write_frame temp(std::move(other));\r
 125         temp.swap(*this);\r
 126         return *this;\r
 127 }\r
 128 void write_frame::swap(write_frame& other){impl_.swap(other.impl_);}\r
 129 \r
 130 boost::iterator_range<uint8_t*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
 131 audio_buffer& write_frame::audio_data() { return impl_->audio_data_; }\r
 132 const void* write_frame::tag() const {return impl_->tag_;}\r
 133 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 134 const std::vector<safe_ptr<device_buffer>>& write_frame::get_textures() const{return impl_->textures_;}\r
 135 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 136 void write_frame::commit(){impl_->commit();}\r
 137 void write_frame::set_type(const field_mode::type& mode){impl_->mode_ = mode;}\r
 138 core::field_mode::type write_frame::get_type() const{return impl_->mode_;}\r
 139 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 140 \r
 141 }}