src/kits/game/GSUtility.h

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   3 //
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   5 //      copy of this software and associated documentation files (the "Software"),
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   9 //      Software is furnished to do so, subject to the following conditions:
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  21 //
  22 //      File Name:              GameSoundDevice.h
  23 //      Author:                 Christopher ML Zumwalt May (zummy@users.sf.net)
  24 //      Description:    Utility functions used by sound system
  25 //------------------------------------------------------------------------------
  26 #ifndef _GAMESOUND_UTILITY_H
  27 #define _GAMESOUND_UTILITY_H
  28
  29
  30 #include <GameSoundDefs.h>
  31 #include <MediaDefs.h>
  32
  33
  34 struct _gs_ramp
  35 {
  36         float inc;
  37         float orignal;
  38         float* value;
  39
  40         float frame_total;
  41         float frame_inc;
  42
  43         float frame_count;
  44         float frame_inc_count;
  45
  46         bigtime_t duration;
  47 };
  48
  49
  50 _gs_ramp* InitRamp(float* value, float set, float frames, bigtime_t duration);
  51 bool ChangeRamp(_gs_ramp* ramp);
  52 size_t get_sample_size(int32 format);
  53 void media_to_gs_format(gs_audio_format* dest,
  54         media_raw_audio_format* source);
  55
  56
  57 #endif