484 lines
20 KiB
Nim
484 lines
20 KiB
Nim
#******************************************************************************
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#
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# $Id: sdl_mixer.pas,v 1.18 2007/05/29 21:31:44 savage Exp $
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#
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#
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#
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# Borland Delphi SDL_Mixer - Simple DirectMedia Layer Mixer Library
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# Conversion of the Simple DirectMedia Layer Headers
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#
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# Portions created by Sam Lantinga <slouken@devolution.com> are
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# Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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# 5635-34 Springhouse Dr.
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# Pleasanton, CA 94588 (USA)
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#
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# All Rights Reserved.
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#
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# The original files are : SDL_mixer.h
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# music_cmd.h
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# wavestream.h
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# timidity.h
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# playmidi.h
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# music_ogg.h
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# mikmod.h
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#
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# The initial developer of this Pascal code was :
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# Dominqiue Louis <Dominique@SavageSoftware.com.au>
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#
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# Portions created by Dominqiue Louis are
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# Copyright (C) 2000 - 2001 Dominqiue Louis.
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#
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#
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# Contributor(s)
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# --------------
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# Matthias Thoma <ma.thoma@gmx.de>
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#
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# Obtained through:
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# Joint Endeavour of Delphi Innovators ( Project JEDI )
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#
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# You may retrieve the latest version of this file at the Project
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# JEDI home page, located at http://delphi-jedi.org
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#
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# The contents of this file are used with permission, subject to
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# the Mozilla Public License Version 1.1 (the "License"); you may
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# not use this file except in compliance with the License. You may
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# obtain a copy of the License at
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# http://www.mozilla.org/MPL/MPL-1.1.html
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#
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# Software distributed under the License is distributed on an
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# "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# Description
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# -----------
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#
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#
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#
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#
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#
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#
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#
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# Requires
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# --------
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# SDL.pas & SMPEG.pas somewhere within your search path.
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#
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# Programming Notes
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# -----------------
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# See the Aliens Demo to see how this library is used
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#
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# Revision History
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# ----------------
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# April 02 2001 - DL : Initial Translation
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#
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# February 02 2002 - DL : Update to version 1.2.1
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#
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# April 03 2003 - DL : Added jedi-sdl.inc include file to support more
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# Pascal compilers. Initial support is now included
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# for GnuPascal, VirtualPascal, TMT and obviously
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# continue support for Delphi Kylix and FreePascal.
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#
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# April 24 2003 - DL : under instruction from Alexey Barkovoy, I have added
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# better TMT Pascal support and under instruction
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# from Prof. Abimbola Olowofoyeku (The African Chief),
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# I have added better Gnu Pascal support
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#
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# April 30 2003 - DL : under instruction from David Mears AKA
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# Jason Siletto, I have added FPC Linux support.
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# This was compiled with fpc 1.1, so remember to set
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# include file path. ie. -Fi/usr/share/fpcsrc/rtl/*
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#
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#
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# $Log: sdl_mixer.pas,v $
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# Revision 1.18 2007/05/29 21:31:44 savage
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# Changes as suggested by Almindor for 64bit compatibility.
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#
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# Revision 1.17 2007/05/20 20:31:17 savage
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# Initial Changes to Handle 64 Bits
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#
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# Revision 1.16 2006/12/02 00:16:17 savage
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# Updated to latest version
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#
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# Revision 1.15 2005/04/10 11:48:33 savage
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# Changes as suggested by Michalis, thanks.
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#
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# Revision 1.14 2005/02/24 20:20:07 savage
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# Changed definition of MusicType and added GetMusicType function
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#
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# Revision 1.13 2005/01/05 01:47:09 savage
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# Changed LibName to reflect what MacOS X should have. ie libSDL*-1.2.0.dylib respectively.
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#
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# Revision 1.12 2005/01/04 23:14:56 savage
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# Changed LibName to reflect what most Linux distros will have. ie libSDL*-1.2.so.0 respectively.
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#
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# Revision 1.11 2005/01/01 02:05:19 savage
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# Updated to v1.2.6
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#
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# Revision 1.10 2004/09/12 21:45:17 savage
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# Robert Reed spotted that Mix_SetMusicPosition was missing from the conversion, so this has now been added.
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#
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# Revision 1.9 2004/08/27 21:48:24 savage
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# IFDEFed out Smpeg support on MacOS X
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#
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# Revision 1.8 2004/08/14 22:54:30 savage
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# Updated so that Library name defines are correctly defined for MacOS X.
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#
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# Revision 1.7 2004/05/10 14:10:04 savage
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# Initial MacOS X support. Fixed defines for MACOS ( Classic ) and DARWIN ( MacOS X ).
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#
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# Revision 1.6 2004/04/13 09:32:08 savage
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# Changed Shared object names back to just the .so extension to avoid conflicts on various Linux/Unix distros. Therefore developers will need to create Symbolic links to the actual Share Objects if necessary.
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#
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# Revision 1.5 2004/04/01 20:53:23 savage
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# Changed Linux Shared Object names so they reflect the Symbolic Links that are created when installing the RPMs from the SDL site.
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#
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# Revision 1.4 2004/03/31 22:20:02 savage
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# Windows unit not used in this file, so it was removed to keep the code tidy.
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#
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# Revision 1.3 2004/03/31 10:05:08 savage
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# Better defines for Endianess under FreePascal and Borland compilers.
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#
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# Revision 1.2 2004/03/30 20:23:28 savage
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# Tidied up use of UNIX compiler directive.
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#
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# Revision 1.1 2004/02/14 23:35:42 savage
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# version 1 of sdl_image, sdl_mixer and smpeg.
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#
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#
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#
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#******************************************************************************
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import
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sdl, smpeg
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when defined(windows):
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const
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MixerLibName = "SDL_mixer.dll"
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elif defined(macosx):
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const
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MixerLibName = "libSDL_mixer-1.2.0.dylib"
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else:
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const
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MixerLibName = "libSDL_mixer.so"
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const
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MAJOR_VERSION* = 1
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MINOR_VERSION* = 2
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PATCHLEVEL* = 7 # Backwards compatibility
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CHANNELS* = 8 # Good default values for a PC soundcard
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DEFAULT_FREQUENCY* = 22050
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when defined(IA32):
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const
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DEFAULT_FORMAT* = AUDIO_S16LSB
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else:
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const
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DEFAULT_FORMAT* = AUDIO_S16MSB
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const
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DEFAULT_CHANNELS* = 2
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MAX_VOLUME* = 128 # Volume of a chunk
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PATH_MAX* = 255 # mikmod.h constants
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#*
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# * Library version
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# *
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LIBMIKMOD_VERSION_MAJOR* = 3
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LIBMIKMOD_VERSION_MINOR* = 1
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LIBMIKMOD_REVISION* = 8
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LIBMIKMOD_VERSION* = ((LIBMIKMOD_VERSION_MAJOR shl 16) or
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(LIBMIKMOD_VERSION_MINOR shl 8) or (LIBMIKMOD_REVISION))
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type #music_cmd.h types
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PMusicCMD* = ptr TMusicCMD
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TMusicCMD*{.final.} = object #wavestream.h types
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filename*: array[0..PATH_MAX - 1, char]
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cmd*: array[0..PATH_MAX - 1, char]
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pid*: TSYS_ThreadHandle
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PWAVStream* = ptr TWAVStream
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TWAVStream*{.final.} = object #playmidi.h types
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wavefp*: Pointer
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start*: int32
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stop*: int32
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cvt*: TAudioCVT
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PMidiEvent* = ptr TMidiEvent
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TMidiEvent*{.final.} = object
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time*: int32
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channel*: byte
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typ*: byte
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a*: byte
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b*: byte
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PMidiSong* = ptr TMidiSong
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TMidiSong*{.final.} = object #music_ogg.h types
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samples*: int32
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events*: PMidiEvent
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POGG_Music* = ptr TOGG_Music
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TOGG_Music*{.final.} = object # mikmod.h types
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#*
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# * Error codes
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# *
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playing*: int32
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volume*: int32 #vf: OggVorbis_File;
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section*: int32
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cvt*: TAudioCVT
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len_available*: int32
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snd_available*: pointer
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TErrorEnum* = enum
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MMERR_OPENING_FILE, MMERR_OUT_OF_MEMORY, MMERR_DYNAMIC_LINKING,
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MMERR_SAMPLE_TOO_BIG, MMERR_OUT_OF_HANDLES, MMERR_UNKNOWN_WAVE_TYPE,
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MMERR_LOADING_PATTERN, MMERR_LOADING_TRACK, MMERR_LOADING_HEADER,
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MMERR_LOADING_SAMPLEINFO, MMERR_NOT_A_MODULE, MMERR_NOT_A_STREAM,
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MMERR_MED_SYNTHSAMPLES, MMERR_ITPACK_INVALID_DATA, MMERR_DETECTING_DEVICE,
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MMERR_INVALID_DEVICE, MMERR_INITIALIZING_MIXER, MMERR_OPENING_AUDIO,
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MMERR_8BIT_ONLY, MMERR_16BIT_ONLY, MMERR_STEREO_ONLY, MMERR_ULAW,
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MMERR_NON_BLOCK, MMERR_AF_AUDIO_PORT, MMERR_AIX_CONFIG_INIT,
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MMERR_AIX_CONFIG_CONTROL, MMERR_AIX_CONFIG_START, MMERR_GUS_SETTINGS,
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MMERR_GUS_RESET, MMERR_GUS_TIMER, MMERR_HP_SETSAMPLESIZE, MMERR_HP_SETSPEED,
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MMERR_HP_CHANNELS, MMERR_HP_AUDIO_OUTPUT, MMERR_HP_AUDIO_DESC,
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MMERR_HP_BUFFERSIZE, MMERR_OSS_SETFRAGMENT, MMERR_OSS_SETSAMPLESIZE,
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MMERR_OSS_SETSTEREO, MMERR_OSS_SETSPEED, MMERR_SGI_SPEED, MMERR_SGI_16BIT,
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MMERR_SGI_8BIT, MMERR_SGI_STEREO, MMERR_SGI_MONO, MMERR_SUN_INIT,
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MMERR_OS2_MIXSETUP, MMERR_OS2_SEMAPHORE, MMERR_OS2_TIMER, MMERR_OS2_THREAD,
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MMERR_DS_PRIORITY, MMERR_DS_BUFFER, MMERR_DS_FORMAT, MMERR_DS_NOTIFY,
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MMERR_DS_EVENT, MMERR_DS_THREAD, MMERR_DS_UPDATE, MMERR_WINMM_HANDLE,
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MMERR_WINMM_ALLOCATED, MMERR_WINMM_DEVICEID, MMERR_WINMM_FORMAT,
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MMERR_WINMM_UNKNOWN, MMERR_MAC_SPEED, MMERR_MAC_START, MMERR_MAX
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PMODULE* = ptr TMODULE
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TMODULE*{.final.} = object
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PUNIMOD* = ptr TUNIMOD
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TUNIMOD* = TMODULE #SDL_mixer.h types
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# The internal format for an audio chunk
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PChunk* = ptr TChunk
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TChunk*{.final.} = object
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allocated*: cint
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abuf*: pointer
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alen*: Uint32
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volume*: byte # Per-sample volume, 0-128
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TFading* = enum
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MIX_NO_FADING, MIX_FADING_OUT, MIX_FADING_IN
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TMusicType* = enum
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MUS_NONE, MUS_CMD, MUS_WAV, MUS_MOD, MUS_MID, MUS_OGG, MUS_MP3
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PMusic* = ptr TMusic
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TMusic*{.final.} = object # The internal format for a music chunk interpreted via mikmod
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mixtype*: TMusicType # other fields are not aviable
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# data : TMusicUnion;
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# fading : TMix_Fading;
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# fade_volume : integer;
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# fade_step : integer;
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# fade_steps : integer;
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# error : integer;
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TMixFunction* = proc (udata, stream: pointer, length: cint): Pointer{.
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cdecl.} # This macro can be used to fill a version structure with the compile-time
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# version of the SDL_mixer library.
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proc VERSION*(X: var sdl.TVersion)
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# This function gets the version of the dynamically linked SDL_mixer library.
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# It should NOT be used to fill a version structure, instead you should use the
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# SDL_MIXER_VERSION() macro.
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proc Linked_Version*(): sdl.Pversion{.cdecl, importc: "Mix_Linked_Version",
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dynlib: MixerLibName.}
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# Open the mixer with a certain audio format
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proc OpenAudio*(frequency: cint, format: Uint16, channels: cint,
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chunksize: cint): cint{.cdecl, importc: "Mix_OpenAudio",
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dynlib: MixerLibName.}
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# Dynamically change the number of channels managed by the mixer.
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# If decreasing the number of channels, the upper channels are
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# stopped.
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# This function returns the new number of allocated channels.
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#
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proc AllocateChannels*(numchannels: cint): cint{.cdecl,
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importc: "Mix_AllocateChannels", dynlib: MixerLibName.}
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# Find out what the actual audio device parameters are.
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# This function returns 1 if the audio has been opened, 0 otherwise.
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#
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proc QuerySpec*(frequency: var cint, format: var Uint16, channels: var cint): cint{.
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cdecl, importc: "Mix_QuerySpec", dynlib: MixerLibName.}
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# Load a wave file or a music (.mod .s3m .it .xm) file
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proc LoadWAV_RW*(src: PRWops, freesrc: cint): PChunk{.cdecl,
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importc: "Mix_LoadWAV_RW", dynlib: MixerLibName.}
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proc LoadWAV*(filename: cstring): PChunk
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proc LoadMUS*(filename: cstring): PMusic{.cdecl, importc: "Mix_LoadMUS",
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dynlib: MixerLibName.}
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# Load a wave file of the mixer format from a memory buffer
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proc QuickLoad_WAV*(mem: pointer): PChunk{.cdecl,
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importc: "Mix_QuickLoad_WAV", dynlib: MixerLibName.}
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# Free an audio chunk previously loaded
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proc FreeChunk*(chunk: PChunk){.cdecl, importc: "Mix_FreeChunk",
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dynlib: MixerLibName.}
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proc FreeMusic*(music: PMusic){.cdecl, importc: "Mix_FreeMusic",
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dynlib: MixerLibName.}
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# Find out the music format of a mixer music, or the currently playing
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# music, if 'music' is NULL.
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proc GetMusicType*(music: PMusic): TMusicType{.cdecl,
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importc: "Mix_GetMusicType", dynlib: MixerLibName.}
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# Set a function that is called after all mixing is performed.
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# This can be used to provide real-time visual display of the audio stream
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# or add a custom mixer filter for the stream data.
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#
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proc SetPostMix*(mix_func: TMixFunction, arg: Pointer){.cdecl,
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importc: "Mix_SetPostMix", dynlib: MixerLibName.}
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# Add your own music player or additional mixer function.
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# If 'mix_func' is NULL, the default music player is re-enabled.
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#
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proc HookMusic*(mix_func: TMixFunction, arg: Pointer){.cdecl,
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importc: "Mix_HookMusic", dynlib: MixerLibName.}
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# Add your own callback when the music has finished playing.
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#
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proc HookMusicFinished*(music_finished: Pointer){.cdecl,
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importc: "Mix_HookMusicFinished", dynlib: MixerLibName.}
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# Get a pointer to the user data for the current music hook
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proc GetMusicHookData*(): Pointer{.cdecl, importc: "Mix_GetMusicHookData",
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dynlib: MixerLibName.}
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#* Add your own callback when a channel has finished playing. NULL
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# * to disable callback.*
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type
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TChannel_finished* = proc (channel: cint){.cdecl.}
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proc ChannelFinished*(channel_finished: TChannel_finished){.cdecl,
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importc: "Mix_ChannelFinished", dynlib: MixerLibName.}
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const
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CHANNEL_POST* = - 2
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type
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TEffectFunc* = proc (chan: cint, stream: Pointer, length: cint,
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udata: Pointer): Pointer{.cdecl.}
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TEffectDone* = proc (chan: cint, udata: Pointer): Pointer{.cdecl.}
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proc RegisterEffect*(chan: cint, f: TEffectFunc, d: TEffectDone,
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arg: Pointer): cint{.cdecl,
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importc: "Mix_RegisterEffect", dynlib: MixerLibName.}
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proc UnregisterEffect*(channel: cint, f: TEffectFunc): cint{.cdecl,
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importc: "Mix_UnregisterEffect", dynlib: MixerLibName.}
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proc UnregisterAllEffects*(channel: cint): cint{.cdecl,
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importc: "Mix_UnregisterAllEffects", dynlib: MixerLibName.}
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const
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EFFECTSMAXSPEED* = "MIX_EFFECTSMAXSPEED"
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proc SetPanning*(channel: cint, left: byte, right: byte): cint{.cdecl,
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importc: "Mix_SetPanning", dynlib: MixerLibName.}
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proc SetPosition*(channel: cint, angle: int16, distance: byte): cint{.cdecl,
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importc: "Mix_SetPosition", dynlib: MixerLibName.}
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proc SetDistance*(channel: cint, distance: byte): cint{.cdecl,
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importc: "Mix_SetDistance", dynlib: MixerLibName.}
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proc SetReverseStereo*(channel: cint, flip: cint): cint{.cdecl,
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importc: "Mix_SetReverseStereo", dynlib: MixerLibName.}
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proc ReserveChannels*(num: cint): cint{.cdecl, importc: "Mix_ReserveChannels",
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dynlib: MixerLibName.}
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proc GroupChannel*(which: cint, tag: cint): cint{.cdecl,
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importc: "Mix_GroupChannel", dynlib: MixerLibName.}
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proc GroupChannels*(`from`: cint, `to`: cint, tag: cint): cint{.cdecl,
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importc: "Mix_GroupChannels", dynlib: MixerLibName.}
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proc GroupAvailable*(tag: cint): cint{.cdecl, importc: "Mix_GroupAvailable",
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dynlib: MixerLibName.}
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proc GroupCount*(tag: cint): cint{.cdecl, importc: "Mix_GroupCount",
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dynlib: MixerLibName.}
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proc GroupOldest*(tag: cint): cint{.cdecl, importc: "Mix_GroupOldest",
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dynlib: MixerLibName.}
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proc GroupNewer*(tag: cint): cint{.cdecl, importc: "Mix_GroupNewer",
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dynlib: MixerLibName.}
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proc PlayChannelTimed*(channel: cint, chunk: PChunk, loops: cint,
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ticks: cint): cint{.cdecl,
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importc: "Mix_PlayChannelTimed", dynlib: MixerLibName.}
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proc PlayChannel*(channel: cint, chunk: PChunk, loops: cint): cint
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proc PlayMusic*(music: PMusic, loops: cint): cint{.cdecl,
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importc: "Mix_PlayMusic", dynlib: MixerLibName.}
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proc FadeInMusic*(music: PMusic, loops: cint, ms: cint): cint{.cdecl,
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importc: "Mix_FadeInMusic", dynlib: MixerLibName.}
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proc FadeInChannelTimed*(channel: cint, chunk: PChunk, loops: cint,
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ms: cint, ticks: cint): cint{.cdecl,
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importc: "Mix_FadeInChannelTimed", dynlib: MixerLibName.}
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proc FadeInChannel*(channel: cint, chunk: PChunk, loops: cint, ms: cint): cint
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proc Volume*(channel: cint, volume: cint): cint{.cdecl, importc: "Mix_Volume",
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dynlib: MixerLibName.}
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proc VolumeChunk*(chunk: PChunk, volume: cint): cint{.cdecl,
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importc: "Mix_VolumeChunk", dynlib: MixerLibName.}
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proc VolumeMusic*(volume: cint): cint{.cdecl, importc: "Mix_VolumeMusic",
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dynlib: MixerLibName.}
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proc HaltChannel*(channel: cint): cint{.cdecl, importc: "Mix_HaltChannel",
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dynlib: MixerLibName.}
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proc HaltGroup*(tag: cint): cint{.cdecl, importc: "Mix_HaltGroup",
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dynlib: MixerLibName.}
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proc HaltMusic*(): cint{.cdecl, importc: "Mix_HaltMusic",
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dynlib: MixerLibName.}
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# Change the expiration delay for a particular channel.
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# The sample will stop playing after the 'ticks' milliseconds have elapsed,
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# or remove the expiration if 'ticks' is -1
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#
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proc ExpireChannel*(channel: cint, ticks: cint): cint{.cdecl,
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importc: "Mix_ExpireChannel", dynlib: MixerLibName.}
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# Halt a channel, fading it out progressively till it's silent
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# The ms parameter indicates the number of milliseconds the fading
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# will take.
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#
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proc FadeOutChannel*(which: cint, ms: cint): cint{.cdecl,
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importc: "Mix_FadeOutChannel", dynlib: MixerLibName.}
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proc FadeOutGroup*(tag: cint, ms: cint): cint{.cdecl,
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importc: "Mix_FadeOutGroup", dynlib: MixerLibName.}
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proc FadeOutMusic*(ms: cint): cint{.cdecl, importc: "Mix_FadeOutMusic",
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dynlib: MixerLibName.}
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# Query the fading status of a channel
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proc FadingMusic*(): TFading{.cdecl, importc: "Mix_FadingMusic",
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|
dynlib: MixerLibName.}
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proc FadingChannel*(which: cint): TFading{.cdecl,
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importc: "Mix_FadingChannel", dynlib: MixerLibName.}
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|
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proc Pause*(channel: cint){.cdecl, importc: "Mix_Pause", dynlib: MixerLibName.}
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proc Resume*(channel: cint){.cdecl, importc: "Mix_Resume",
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|
dynlib: MixerLibName.}
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proc Paused*(channel: cint): cint{.cdecl, importc: "Mix_Paused",
|
|
dynlib: MixerLibName.}
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|
|
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proc PauseMusic*(){.cdecl, importc: "Mix_PauseMusic", dynlib: MixerLibName.}
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|
proc ResumeMusic*(){.cdecl, importc: "Mix_ResumeMusic", dynlib: MixerLibName.}
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|
proc RewindMusic*(){.cdecl, importc: "Mix_RewindMusic", dynlib: MixerLibName.}
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|
proc PausedMusic*(): cint{.cdecl, importc: "Mix_PausedMusic",
|
|
dynlib: MixerLibName.}
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|
|
|
proc SetMusicPosition*(position: float64): cint{.cdecl,
|
|
importc: "Mix_SetMusicPosition", dynlib: MixerLibName.}
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|
|
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proc Playing*(channel: cint): cint{.cdecl, importc: "Mix_Playing",
|
|
dynlib: MixerLibName.}
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|
proc PlayingMusic*(): cint{.cdecl, importc: "Mix_PlayingMusic",
|
|
dynlib: MixerLibName.}
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|
|
|
proc SetMusicCMD*(command: cstring): cint{.cdecl, importc: "Mix_SetMusicCMD",
|
|
dynlib: MixerLibName.}
|
|
|
|
proc SetSynchroValue*(value: cint): cint{.cdecl,
|
|
importc: "Mix_SetSynchroValue", dynlib: MixerLibName.}
|
|
proc GetSynchroValue*(): cint{.cdecl, importc: "Mix_GetSynchroValue",
|
|
dynlib: MixerLibName.}
|
|
|
|
proc GetChunk*(channel: cint): PChunk{.cdecl, importc: "Mix_GetChunk",
|
|
dynlib: MixerLibName.}
|
|
|
|
proc CloseAudio*(){.cdecl, importc: "Mix_CloseAudio", dynlib: MixerLibName.}
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|
|
|
proc VERSION(X: var sdl.Tversion) =
|
|
X.major = MAJOR_VERSION
|
|
X.minor = MINOR_VERSION
|
|
X.patch = PATCHLEVEL
|
|
|
|
proc LoadWAV(filename: cstring): PChunk =
|
|
result = LoadWAV_RW(RWFromFile(filename, "rb"), 1)
|
|
|
|
proc PlayChannel(channel: cint, chunk: PChunk, loops: cint): cint =
|
|
result = PlayChannelTimed(channel, chunk, loops, - 1)
|
|
|
|
proc FadeInChannel(channel: cint, chunk: PChunk, loops: cint, ms: cint): cint =
|
|
result = FadeInChannelTimed(channel, chunk, loops, ms, - 1)
|
|
|