git.sesse.net Git - casparcg/blob - core/video_channel_context.h

   1 #pragma once\r
   2 \r
   3 #include <common/concurrency/executor.h>\r
   4 \r
   5 #include <core/mixer/gpu/ogl_device.h>\r
   6 #include <core/video_format.h>\r
   7 \r
   8 #include <tbb/spin_rw_mutex.h>\r
   9 \r
  10 #include <boost/noncopyable.hpp>\r
  11 #include <boost/lexical_cast.hpp>\r
  12 \r
  13 #include <string>\r
  14 \r
  15 namespace caspar { namespace core {\r
  16 \r
  17 class video_channel_context\r
  18 {\r
  19         mutable tbb::spin_rw_mutex      mutex_;\r
  20         const int                                       index_;\r
  21         video_format_desc                       format_desc_;\r
  22         executor                                        execution_;\r
  23         executor                                        destruction_;\r
  24         ogl_device&                                     ogl_;\r
  25 \r
  26 public:\r
  27         video_channel_context(int index,  ogl_device& ogl, const video_format_desc& format_desc) \r
  28                 : index_(index)\r
  29                 , format_desc_(format_desc)\r
  30                 , execution_(print() + L"/execution")\r
  31                 , destruction_(print() + L"/destruction")\r
  32                 , ogl_(ogl)\r
  33         {\r
  34                 execution_.set_priority_class(above_normal_priority_class);\r
  35                 destruction_.set_priority_class(below_normal_priority_class);\r
  36         }\r
  37 \r
  38         const int index() const {return index_;}\r
  39 \r
  40         video_format_desc get_format_desc()\r
  41         {\r
  42                 tbb::spin_rw_mutex::scoped_lock lock(mutex_, false);\r
  43                 return format_desc_;\r
  44         }\r
  45 \r
  46         void set_format_desc(const video_format_desc& format_desc)\r
  47         {\r
  48                 tbb::spin_rw_mutex::scoped_lock lock(mutex_, true);\r
  49                 format_desc_ = format_desc;\r
  50         }\r
  51 \r
  52         executor& execution() {return execution_;}\r
  53         executor& destruction() {return destruction_;}\r
  54         ogl_device& ogl() { return ogl_;}\r
  55 \r
  56         std::wstring print() const\r
  57         {\r
  58                 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_+1) + L"-" +  format_desc_.name + L"]";\r
  59         }\r
  60 };\r
  61         \r
  62 }}