/[svn]/libgig/trunk/src/helper.h
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revision 2681 by schoenebeck, Thu Mar 26 13:32:59 2009 UTC revision 2682 by schoenebeck, Mon Dec 29 16:25:51 2014 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file access library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2009 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2014 by Christian Schoenebeck                      *
6   *                              <cuse@users.sourceforge.net>               *   *                              <cuse@users.sourceforge.net>               *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
# Line 184  inline void SaveString(uint32_t ChunkID, Line 184  inline void SaveString(uint32_t ChunkID,
184      }      }
185  }  }
186    
187    // private helper function to convert progress of a subprocess into the global progress
188    inline void __notify_progress(RIFF::progress_t* pProgress, float subprogress) {
189        if (pProgress && pProgress->callback) {
190            const float totalrange    = pProgress->__range_max - pProgress->__range_min;
191            const float totalprogress = pProgress->__range_min + subprogress * totalrange;
192            pProgress->factor         = totalprogress;
193            pProgress->callback(pProgress); // now actually notify about the progress
194        }
195    }
196    
197    // private helper function to divide a progress into subprogresses
198    inline void __divide_progress(RIFF::progress_t* pParentProgress, RIFF::progress_t* pSubProgress, float totalTasks, float currentTask) {
199        if (pParentProgress && pParentProgress->callback) {
200            const float totalrange    = pParentProgress->__range_max - pParentProgress->__range_min;
201            pSubProgress->callback    = pParentProgress->callback;
202            pSubProgress->custom      = pParentProgress->custom;
203            pSubProgress->__range_min = pParentProgress->__range_min + totalrange * currentTask / totalTasks;
204            pSubProgress->__range_max = pSubProgress->__range_min + totalrange / totalTasks;
205        }
206    }
207    
208  #endif // __LIBGIG_HELPER_H__  #endif // __LIBGIG_HELPER_H__
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