workbench/devs/AHI/Device/database.h

   1 /*
   2      AHI - Hardware independent audio subsystem
   3      Copyright (C) 2017 The AROS Dev Team
   4      Copyright (C) 1996-2005 Martin Blom <martin@blom.org>
   5
   6      This library is free software; you can redistribute it and/or
   7      modify it under the terms of the GNU Library General Public
   8      License as published by the Free Software Foundation; either
   9      version 2 of the License, or (at your option) any later version.
  10
  11      This library is distributed in the hope that it will be useful,
  12      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14      Library General Public License for more details.
  15
  16      You should have received a copy of the GNU Library General Public
  17      License along with this library; if not, write to the
  18      Free Software Foundation, Inc., 59 Temple Place - Suite 330, Cambridge,
  19      MA 02139, USA.
  20 */
  21
  22 #ifndef ahi_database_h
  23 #define ahi_database_h
  24
  25 #include <exec/types.h>
  26 #include <exec/semaphores.h>
  27 #include <exec/lists.h>
  28
  29 /* Current implementation of the database (Version 0):
  30    Use FreeVec() to free the structure. */
  31
  32 #define ADB_NAME  "Audio Mode Database"
  33
  34 struct AHI_AudioDatabase
  35 {
  36   struct SignalSemaphore  ahidb_Semaphore;      /* The Semaphore */
  37   struct MinList          ahidb_AudioModes;     /* The Audio Database */
  38   UBYTE                   ahidb_Version;        /* Version number (0) */
  39   UBYTE                   ahidb_Name[sizeof(ADB_NAME)]; /* Name */
  40
  41 };
  42
  43
  44 IPTR
  45 _AHI_NextAudioID( IPTR           id,
  46                   struct AHIBase* AHIBase );
  47
  48 ULONG
  49 _AHI_AddAudioMode( struct TagItem* DBtags,
  50                    struct AHIBase* AHIBase );
  51
  52 ULONG
  53 _AHI_RemoveAudioMode( IPTR           id,
  54                       struct AHIBase* AHIBase );
  55
  56 ULONG
  57 _AHI_LoadModeFile( UBYTE*          name,
  58                    struct AHIBase* AHIBase );
  59
  60 struct AHI_AudioDatabase*
  61 LockDatabase( void );
  62
  63 struct AHI_AudioDatabase*
  64 LockDatabaseWrite( void );
  65
  66 void
  67 UnlockDatabase( struct AHI_AudioDatabase* audiodb );
  68
  69 struct TagItem*
  70 GetDBTagList( struct AHI_AudioDatabase* audiodb,
  71               IPTR id );
  72
  73 #endif /* ahi_database_h */