text: /*
      Copyright 2005-2012 Intel Corporation.  All Rights Reserved.
  
      This file is part of Threading Building Blocks.
  
      Threading Building Blocks is free software; you can redistribute it
      and/or modify it under the terms of the GNU General Public License
      version 2 as published by the Free Software Foundation.
  
      Threading Building Blocks is distributed in the hope that it will be
      useful, but WITHOUT ANY WARRANTY; without even the implied warranty
      of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
  
      You should have received a copy of the GNU General Public License
      along with Threading Building Blocks; if not, write to the Free Software
      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  
      As a special exception, you may use this file as part of a free software
      library without restriction.  Specifically, if other files instantiate
      templates or use macros or inline functions from this file, or you compile
      this file and link it with other files to produce an executable, this
      file does not by itself cause the resulting executable to be covered by
      the GNU General Public License.  This exception does not however
      invalidate any other reasons why the executable file might be covered by
      the GNU General Public License.
  */
  
  #define VIDEO_WINMAIN_ARGS
  
  #include <iostream>
  #include "tbb/tick_count.h"
  #include "../../common/utility/utility.h"
  
  #if __TBB_MIC
  #pragma offload_attribute (push,target(mic))
  #endif // __TBB_MIC
  #include "seismic_video.h"
  #include "universe.h"
  #include "tbb/task_scheduler_init.h"
  
  Universe u;
  #if __TBB_MIC
  #pragma offload_attribute (pop)
  #endif // __TBB_MIC
  
  struct RunOptions {
      //! It is used for console mode for test with different number of threads and also has
      //! meaning for GUI: threads.first  - use separate event/updating loop thread (>0) or not (0).
      //!                  threads.second - initialization value for scheduler
      utility::thread_number_range threads;
      int numberOfFrames;
      bool silent;
      bool parallel;
      RunOptions(utility::thread_number_range threads_ ,    int number_of_frames_ ,     bool silent_ , bool parallel_ )
          : threads(threads_),numberOfFrames(number_of_frames_), silent(silent_), parallel(parallel_)
      {
      }
  };
  
  int do_get_default_num_threads() {
      int threads;
      #if __TBB_MIC
      #pragma offload target(mic) out(threads)
      #endif // __TBB_MIC
      threads = tbb::task_scheduler_init::default_num_threads();
      return threads;
  }
  
  int get_default_num_threads() {
      static int threads = do_get_default_num_threads();
      return threads;
  }
  
  RunOptions ParseCommandLine(int argc, char *argv[]){
      // zero number of threads means to run serial version
      utility::thread_number_range threads(get_default_num_threads,0,get_default_num_threads());
  
      int numberOfFrames = 1000;
      bool silent = false;
      bool serial = false;
  
      utility::parse_cli_arguments(argc,argv,
          utility::cli_argument_pack()
              //"-h" option for for displaying help is present implicitly
              .positional_arg(threads,"n-of-threads",utility::thread_number_range_desc)
              .positional_arg(numberOfFrames,"n-of-frames","number of frames the example processes internally")
              .arg(silent,"silent","no output except elapsed time")
              .arg(serial,"serial","in GUI mode start with serial version of algorithm")
      );
      return RunOptions(threads,numberOfFrames,silent,!serial);
  }
  
  int main(int argc, char *argv[])
  {
      try{
          tbb::tick_count mainStartTime = tbb::tick_count::now();
          RunOptions options = ParseCommandLine(argc,argv);
          SeismicVideo video(u,options.numberOfFrames,options.threads.last,options.parallel);
  
          // video layer init
          if(video.init_window(u.UniverseWidth, u.UniverseHeight)) {
              video.calc_fps = true;
              video.threaded = options.threads.first > 0;
              // video is ok, init Universe
              u.InitializeUniverse(video);
              // main loop
              video.main_loop();
          }
          else if(video.init_console()) {
              // do console mode
              for(int p = options.threads.first;  p <= options.threads.last; p = options.threads.step(p)) {
                  tbb::tick_count xwayParallelismStartTime = tbb::tick_count::now();
                  u.InitializeUniverse(video);
                  int numberOfFrames = options.numberOfFrames;
                  #if __TBB_MIC
                  drawing_memory dmem = video.get_drawing_memory();
                  char *pMem = dmem.get_address();
                  size_t memSize = dmem.get_size();
  
                  #pragma offload target(mic) in(u, numberOfFrames, p, dmem), out(pMem:length(memSize))
                  {
                      // It is necessary to update the pointer on mic 
                      // since the address spaces on host and on target are different
                      dmem.set_address(pMem);
                      u.SetDrawingMemory(dmem);
                  #endif // __TBB_MIC
                  if (p==0){
                      //run a serial version
                      for( int i=0; i<numberOfFrames; ++i ){
                          u.SerialUpdateUniverse();
                      }
                  }else{
                      tbb::task_scheduler_init init(p);
                      for( int i=0; i<numberOfFrames; ++i ){
                          u.ParallelUpdateUniverse();
                      }
                  }
                  #if __TBB_MIC
                  }
                  #endif // __TBB_MIC
  
                  if (!options.silent){
                      double fps =  options.numberOfFrames/((tbb::tick_count::now()-xwayParallelismStartTime).seconds());
                      std::cout<<fps<<" frame per sec with ";
                      if (p==0){
                          std::cout<<"serial code\n";
                      }else{
                          std::cout<<p<<" way parallelism\n";
                      }
                  }
              }
          }
          video.terminate();
          utility::report_elapsed_time((tbb::tick_count::now() - mainStartTime).seconds());
          return 0;
      }catch(std::exception& e){
          std::cerr<<"error occurred. error text is :\"" <<e.what()<<"\"\n";
          return 1;
      }
  }
  