workbench/devs/AHI/Drivers/EMU10kx/emu10kx-misc.h

   1 /*
   2      emu10kx.audio - AHI driver for SoundBlaster Live! series
   3      Copyright (C) 2002-2005 Martin Blom <martin@blom.org>
   4
   5      This program is free software; you can redistribute it and/or
   6      modify it under the terms of the GNU General Public License
   7      as published by the Free Software Foundation; either version 2
   8      of the License, or (at your option) any later version.
   9
  10      This program is distributed in the hope that it will be useful,
  11      but WITHOUT ANY WARRANTY; without even the implied warranty of
  12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13      GNU General Public License for more details.
  14
  15      You should have received a copy of the GNU General Public License
  16      along with this program; if not, write to the Free Software
  17      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 */
  19
  20 #ifndef AHI_Drivers_EMU10kx_emu10kx_misc_h
  21 #define AHI_Drivers_EMU10kx_emu10kx_misc_h
  22
  23 #include <config.h>
  24
  25 #include <devices/ahi.h>
  26 #include <DriverData.h>
  27
  28
  29 struct EMU10kxData*
  30 AllocDriverData( APTR               dev,
  31                  struct DriverBase* AHIsubBase );
  32
  33 void
  34 FreeDriverData( struct EMU10kxData* dd,
  35                 struct DriverBase*  AHIsubBase );
  36
  37 void
  38 SaveMixerState( struct EMU10kxData* dd );
  39
  40 void
  41 RestoreMixerState( struct EMU10kxData* dd );
  42
  43 void
  44 UpdateMonitorMixer( struct EMU10kxData* dd );
  45
  46 Fixed
  47 Linear2MixerGain( Fixed  linear,
  48                   UWORD* bits );
  49
  50 Fixed
  51 Linear2RecordGain( Fixed  linear,
  52                    UWORD* bits );
  53
  54 ULONG
  55 SamplerateToLinearPitch( ULONG samplingrate );
  56
  57 #endif /* AHI_Drivers_EMU10kx_emu10kx_misc_h */