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 #include <core/mixer/audio/audio_util.h>\r
  33 \r
  34 #include <boost/lexical_cast.hpp>\r
  35 \r
  36 namespace caspar { namespace core {\r
  37                                                                                                                                                                                                                                                                                                                         \r
  38 struct write_frame::implementation\r
  39 {                               \r
  40         std::shared_ptr<ogl_device>                                     ogl_;\r
  41         std::vector<std::shared_ptr<host_buffer>>       buffers_;\r
  42         std::vector<safe_ptr<device_buffer>>            textures_;\r
  43         audio_buffer                                                            audio_data_;\r
  44         const core::pixel_format_desc                           desc_;\r
  45         const channel_layout                                            channel_layout_;\r
  46         const void*                                                                     tag_;\r
  47         core::field_mode::type                                          mode_;\r
  48 \r
  49         implementation(const void* tag, const channel_layout& channel_layout)\r
  50                 : channel_layout_(channel_layout)\r
  51                 , tag_(tag)\r
  52         {\r
  53         }\r
  54 \r
  55         implementation(const safe_ptr<ogl_device>& ogl, const void* tag, const core::pixel_format_desc& desc, const channel_layout& channel_layout) \r
  56                 : ogl_(ogl)\r
  57                 , desc_(desc)\r
  58                 , channel_layout_(channel_layout)\r
  59                 , tag_(tag)\r
  60                 , mode_(core::field_mode::progressive)\r
  61         {\r
  62                 std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(buffers_), [&](const core::pixel_format_desc::plane& plane)\r
  63                 {\r
  64                         return ogl_->create_host_buffer(plane.size, host_buffer::write_only);\r
  65                 });\r
  66                 std::transform(desc.planes.begin(), desc.planes.end(), std::back_inserter(textures_), [&](const core::pixel_format_desc::plane& plane)\r
  67                 {\r
  68                         return ogl_->create_device_buffer(plane.width, plane.height, plane.channels);   \r
  69                 });\r
  70         }\r
  71                         \r
  72         void accept(write_frame& self, core::frame_visitor& visitor)\r
  73         {\r
  74                 visitor.begin(self);\r
  75                 visitor.visit(self);\r
  76                 visitor.end();\r
  77         }\r
  78 \r
  79         boost::iterator_range<uint8_t*> image_data(size_t index)\r
  80         {\r
  81                 if(index >= buffers_.size() || !buffers_[index]->data())\r
  82                         return boost::iterator_range<uint8_t*>();\r
  83                 auto ptr = static_cast<uint8_t*>(buffers_[index]->data());\r
  84                 return boost::iterator_range<uint8_t*>(ptr, ptr+buffers_[index]->size());\r
  85         }\r
  86         \r
  87         void commit()\r
  88         {\r
  89                 for(size_t n = 0; n < buffers_.size(); ++n)\r
  90                         commit(n);\r
  91         }\r
  92 \r
  93         void commit(size_t plane_index)\r
  94         {\r
  95                 if(plane_index >= buffers_.size())\r
  96                         return;\r
  97                                 \r
  98                 auto buffer = std::move(buffers_[plane_index]); // Release buffer once done.\r
  99 \r
 100                 if(!buffer)\r
 101                         return;\r
 102 \r
 103                 auto texture = textures_.at(plane_index);\r
 104                 \r
 105                 ogl_->begin_invoke([=]\r
 106                 {                       \r
 107                         buffer->unmap();\r
 108                         buffer->bind();\r
 109                         texture->begin_read();\r
 110                         buffer->unbind();\r
 111                 }, high_priority);\r
 112         }\r
 113 };\r
 114         \r
 115 write_frame::write_frame(const void* tag, const channel_layout& channel_layout)\r
 116         : impl_(new implementation(tag, channel_layout))\r
 117 {\r
 118 }\r
 119 write_frame::write_frame(\r
 120                 const safe_ptr<ogl_device>& ogl,\r
 121                 const void* tag,\r
 122                 const core::pixel_format_desc& desc,\r
 123                 const channel_layout& channel_layout)\r
 124         : impl_(new implementation(ogl, tag, desc, channel_layout))\r
 125 {\r
 126 }\r
 127 write_frame::write_frame(const write_frame& other) : impl_(new implementation(*other.impl_)){}\r
 128 write_frame::write_frame(write_frame&& other) : impl_(std::move(other.impl_)){}\r
 129 write_frame& write_frame::operator=(const write_frame& other)\r
 130 {\r
 131         basic_frame temp(other);\r
 132         temp.swap(*this);\r
 133         return *this;\r
 134 }\r
 135 write_frame& write_frame::operator=(write_frame&& other)\r
 136 {\r
 137         write_frame temp(std::move(other));\r
 138         temp.swap(*this);\r
 139         return *this;\r
 140 }\r
 141 void write_frame::swap(write_frame& other){impl_.swap(other.impl_);}\r
 142 \r
 143 boost::iterator_range<uint8_t*> write_frame::image_data(size_t index){return impl_->image_data(index);}\r
 144 audio_buffer& write_frame::audio_data() { return impl_->audio_data_; }\r
 145 const void* write_frame::tag() const {return impl_->tag_;}\r
 146 const core::pixel_format_desc& write_frame::get_pixel_format_desc() const{return impl_->desc_;}\r
 147 const channel_layout& write_frame::get_channel_layout() const{return impl_->channel_layout_;}\r
 148 multichannel_view<int32_t, audio_buffer::iterator> write_frame::get_multichannel_view()\r
 149 {\r
 150         return make_multichannel_view<int32_t>(impl_->audio_data_.begin(), impl_->audio_data_.end(), impl_->channel_layout_);\r
 151 }\r
 152 const std::vector<safe_ptr<device_buffer>>& write_frame::get_textures() const{return impl_->textures_;}\r
 153 void write_frame::commit(size_t plane_index){impl_->commit(plane_index);}\r
 154 void write_frame::commit(){impl_->commit();}\r
 155 void write_frame::set_type(const field_mode::type& mode){impl_->mode_ = mode;}\r
 156 core::field_mode::type write_frame::get_type() const{return impl_->mode_;}\r
 157 void write_frame::accept(core::frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 158 \r
 159 }}