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@@ -1,967 +1,967 @@
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-unit sdl_mixer_nosmpeg;
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-{******************************************************************************}
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-{ Copy of SDL_Mixer without smpeg dependency and mp3 support }
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-{******************************************************************************}
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-
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-{$I jedi-sdl.inc}
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-
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-interface
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-
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-uses
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-{$IFDEF __GPC__}
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- gpc,
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-{$ENDIF}
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- sdl;
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-
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-const
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-{$IFDEF WINDOWS}
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- SDL_MixerLibName = 'SDL_mixer.dll';
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-{$ENDIF}
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-
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-{$IFDEF UNIX}
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-{$IFDEF DARWIN}
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- SDL_MixerLibName = 'libSDL_mixer-1.2.0.dylib';
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-{$ELSE}
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- {$IFDEF FPC}
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- SDL_MixerLibName = 'libSDL_mixer.so';
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- {$ELSE}
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- SDL_MixerLibName = 'libSDL_mixer-1.2.so.0';
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- {$ENDIF}
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-{$ENDIF}
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-{$ENDIF}
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-
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-{$IFDEF MACOS}
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- SDL_MixerLibName = 'SDL_mixer';
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-{$ENDIF}
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-
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- {* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL *}
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- SDL_MIXER_MAJOR_VERSION = 1;
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-{$EXTERNALSYM MIX_MAJOR_VERSION}
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- SDL_MIXER_MINOR_VERSION = 2;
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-{$EXTERNALSYM MIX_MINOR_VERSION}
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- SDL_MIXER_PATCHLEVEL = 7;
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-{$EXTERNALSYM MIX_PATCHLEVEL}
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-
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- // Backwards compatibility
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- MIX_MAJOR_VERSION = SDL_MIXER_MAJOR_VERSION;
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- MIX_MINOR_VERSION = SDL_MIXER_MINOR_VERSION;
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- MIX_PATCHLEVEL = SDL_MIXER_PATCHLEVEL;
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-
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- // SDL_Mixer.h constants
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- { The default mixer has 8 simultaneous mixing channels }
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-{$IFNDEF MIX_CHANNELS}
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- MIX_CHANNELS = 8;
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-{$ENDIF}
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-{$EXTERNALSYM MIX_CHANNELS}
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- { Good default values for a PC soundcard }
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- MIX_DEFAULT_FREQUENCY = 22050;
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-{$EXTERNALSYM MIX_DEFAULT_FREQUENCY}
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-
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-{$IFDEF IA32}
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- MIX_DEFAULT_FORMAT = AUDIO_S16LSB;
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-{$ELSE}
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- MIX_DEFAULT_FORMAT = AUDIO_S16MSB;
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-{$ENDIF}
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-{$EXTERNALSYM MIX_DEFAULT_FORMAT}
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-
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- MIX_DEFAULT_CHANNELS = 2;
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-{$EXTERNALSYM MIX_DEFAULT_CHANNELS}
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- MIX_MAX_VOLUME = 128; { Volume of a chunk }
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-{$EXTERNALSYM MIX_MAX_VOLUME}
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-
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- PATH_MAX = 255;
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-
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- // 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
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- ( LIBMIKMOD_REVISION ) );
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-
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-type
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- //music_cmd.h types
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- PMusicCMD = ^TMusicCMD;
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- TMusicCMD = record
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- filename : array[ 0..PATH_MAX - 1 ] of char;
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- cmd : array[ 0..PATH_MAX - 1 ] of char;
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- pid : TSYS_ThreadHandle;
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- end;
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-
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- //wavestream.h types
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- PWAVStream = ^TWAVStream;
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- TWAVStream = record
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- wavefp : Pointer;
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- start : longint;
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- stop : longint;
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- cvt : TSDL_AudioCVT;
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- end;
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-
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- //playmidi.h types
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- PMidiEvent = ^TMidiEvent;
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- TMidiEvent = record
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- time : Longint;
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- channel : uint8;
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- type_ : uint8;
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- a : uint8;
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- b : uint8;
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- end;
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-
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- PMidiSong = ^TMidiSong;
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- TMidiSong = record
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- samples : Longint;
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- events : PMidiEvent;
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- end;
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-
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- //music_ogg.h types
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- POGG_Music = ^TOGG_Music;
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- TOGG_Music = record
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- playing : integer;
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- volume : integer;
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- //vf: OggVorbis_File;
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- section : integer;
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- cvt : TSDL_AudioCVT;
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- len_available : integer;
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- snd_available : PUint8;
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- end;
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-
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- // mikmod.h types
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- {*
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- * Error codes
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- *}
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- TErrorEnum = (
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- MMERR_OPENING_FILE,
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- MMERR_OUT_OF_MEMORY,
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- MMERR_DYNAMIC_LINKING,
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- MMERR_SAMPLE_TOO_BIG,
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- MMERR_OUT_OF_HANDLES,
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- MMERR_UNKNOWN_WAVE_TYPE,
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- MMERR_LOADING_PATTERN,
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- MMERR_LOADING_TRACK,
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- MMERR_LOADING_HEADER,
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- MMERR_LOADING_SAMPLEINFO,
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- MMERR_NOT_A_MODULE,
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- MMERR_NOT_A_STREAM,
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- MMERR_MED_SYNTHSAMPLES,
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- MMERR_ITPACK_INVALID_DATA,
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- MMERR_DETECTING_DEVICE,
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- MMERR_INVALID_DEVICE,
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- MMERR_INITIALIZING_MIXER,
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- MMERR_OPENING_AUDIO,
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- MMERR_8BIT_ONLY,
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- MMERR_16BIT_ONLY,
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- MMERR_STEREO_ONLY,
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- MMERR_ULAW,
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- MMERR_NON_BLOCK,
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- MMERR_AF_AUDIO_PORT,
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- MMERR_AIX_CONFIG_INIT,
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- MMERR_AIX_CONFIG_CONTROL,
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- MMERR_AIX_CONFIG_START,
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- MMERR_GUS_SETTINGS,
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- MMERR_GUS_RESET,
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- MMERR_GUS_TIMER,
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- MMERR_HP_SETSAMPLESIZE,
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- MMERR_HP_SETSPEED,
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- MMERR_HP_CHANNELS,
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- MMERR_HP_AUDIO_OUTPUT,
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- MMERR_HP_AUDIO_DESC,
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- MMERR_HP_BUFFERSIZE,
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- MMERR_OSS_SETFRAGMENT,
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- MMERR_OSS_SETSAMPLESIZE,
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- MMERR_OSS_SETSTEREO,
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- MMERR_OSS_SETSPEED,
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- MMERR_SGI_SPEED,
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- MMERR_SGI_16BIT,
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- MMERR_SGI_8BIT,
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- MMERR_SGI_STEREO,
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- MMERR_SGI_MONO,
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- MMERR_SUN_INIT,
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- MMERR_OS2_MIXSETUP,
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- MMERR_OS2_SEMAPHORE,
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- MMERR_OS2_TIMER,
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- MMERR_OS2_THREAD,
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- MMERR_DS_PRIORITY,
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- MMERR_DS_BUFFER,
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- MMERR_DS_FORMAT,
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- MMERR_DS_NOTIFY,
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- MMERR_DS_EVENT,
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- MMERR_DS_THREAD,
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- MMERR_DS_UPDATE,
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- MMERR_WINMM_HANDLE,
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- MMERR_WINMM_ALLOCATED,
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- MMERR_WINMM_DEVICEID,
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- MMERR_WINMM_FORMAT,
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- MMERR_WINMM_UNKNOWN,
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- MMERR_MAC_SPEED,
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- MMERR_MAC_START,
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- MMERR_MAX
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- );
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-
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- PMODULE = ^TMODULE;
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- TMODULE = record
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- (* general module information *)
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- //CHAR* songname; (* name of the song *)
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- //CHAR* modtype; (* string type of module loaded *)
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- //CHAR* comment; (* module comments *)
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- //UWORD flags; (* See module flags above *)
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- //UBYTE numchn; (* number of module channels *)
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- //UBYTE numvoices; (* max # voices used for full NNA playback *)
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- //UWORD numpos; (* number of positions in this song *)
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- //UWORD numpat; (* number of patterns in this song *)
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- //UWORD numins; (* number of instruments *)
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- //UWORD numsmp; (* number of samples *)
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- //type = record INSTRUMENT* instruments; (* all instruments *)
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- //type = record SAMPLE* samples; (* all samples *)
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- //UBYTE realchn; (* real number of channels used *)
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- //UBYTE totalchn; (* total number of channels used (incl NNAs) *)
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- (* playback settings *)
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- //UWORD reppos; (* restart position *)
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- //UBYTE initspeed; (* initial song speed *)
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- //UWORD inittempo; (* initial song tempo *)
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- //UBYTE initvolume; (* initial global volume (0 - 128) *)
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- //UWORD panning : array[ 0..64- 1 ] of ; (* 64 panning positions *)
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- //UBYTE chanvol : array[ 0..64- 1 ] of ; (* 64 channel positions *)
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- //UWORD bpm; (* current beats-per-minute speed *)
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- //UWORD sngspd; (* current song speed *)
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- //SWORD volume; (* song volume (0-128) (or user volume) *)
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- //BOOL extspd; (* extended speed flag (default enabled) *)
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- //BOOL panflag; (* panning flag (default enabled) *)
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- //BOOL wrap; (* wrap module ? (default disabled) *)
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- //BOOL loop; (* allow module to loop ? (default enabled) *)
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- //BOOL fadeout; (* volume fade out during last pattern *)
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- //UWORD patpos; (* current row number *)
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- //SWORD sngpos; (* current song position *)
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- //ULONG sngtime; (* current song time in 2^-10 seconds *)
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- //SWORD relspd; (* relative speed factor *)
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- (* internal module representation *)
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- //UWORD numtrk; (* number of tracks *)
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- //UBYTE** tracks; (* array of numtrk pointers to tracks *)
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- //UWORD* patterns; (* array of Patterns *)
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- //UWORD* pattrows; (* array of number of rows for each pattern *)
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- //UWORD* positions; (* all positions *)
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- //BOOL forbid; (* if true, no player updatenot *)
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- //UWORD numrow; (* number of rows on current pattern *)
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- //UWORD vbtick; (* tick counter (counts from 0 to sngspd) *)
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- //UWORD sngremainder;(* used for song time computation *)
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- //type = record MP_CONTROL* control; (* Effects Channel info (size pf.numchn) *)
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- //type = record MP_VOICE* voice; (* Audio Voice information (size md_numchn) *)
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- //UBYTE globalslide; (* global volume slide rate *)
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- //UBYTE pat_repcrazy;(* module has just looped to position -1 *)
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- //UWORD patbrk; (* position where to start a new pattern *)
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- //UBYTE patdly; (* patterndelay counter (command memory) *)
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- //UBYTE patdly2; (* patterndelay counter (real one) *)
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- //SWORD posjmp; (* flag to indicate a jump is needed... *)
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- end;
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-
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- PUNIMOD = ^TUNIMOD;
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- TUNIMOD = TMODULE;
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-
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- //SDL_mixer.h types
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- { The internal format for an audio chunk }
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- PMix_Chunk = ^TMix_Chunk;
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- TMix_Chunk = record
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- allocated : integer;
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- abuf : PUint8;
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- alen : Uint32;
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- volume : Uint8; { Per-sample volume, 0-128 }
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- end;
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- Mix_Chunk = TMix_Chunk;
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-
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- { The different fading types supported }
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- TMix_Fading = (
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- MIX_NO_FADING,
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- MIX_FADING_OUT,
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- MIX_FADING_IN
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- );
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- Mix_Fading = TMix_Fading;
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-
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- TMix_MusicType = (
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- MUS_NONE,
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- MUS_CMD,
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- MUS_WAV,
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- MUS_MOD,
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- MUS_MID,
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- MUS_OGG
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- );
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- Mix_MusicType = TMix_MusicType;
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-
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- TMusicUnion = record
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- case Byte of
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- 0 : ( cmd : PMusicCMD );
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- 1 : ( wave : PWAVStream );
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- 2 : ( module : PUNIMOD );
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- 3 : ( midi : TMidiSong );
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- 4 : ( ogg : POGG_music );
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- end;
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-
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- P_Mix_Music = ^T_Mix_Music;
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- T_Mix_Music = record
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- type_ : TMix_MusicType;
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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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- end;
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-
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- { The internal format for a music chunk interpreted via mikmod }
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- PMix_Music = ^TMix_Music;
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- TMix_Music = T_Mix_Music;
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-
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- {$IFNDEF __GPC__}
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- TMixFunction = function( udata : Pointer; stream : PUint8; len : integer ) : Pointer; cdecl;
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- {$ELSE}
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- TMixFunction = function( udata : Pointer; stream : PUint8; len : integer ) : Pointer;
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- {$ENDIF}
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-
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-{ This macro can be used to fill a version structure with the compile-time
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- version of the SDL_mixer library. }
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-procedure SDL_MIXER_VERSION(var X: TSDL_Version);
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-{$EXTERNALSYM SDL_MIXER_VERSION}
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-
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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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-function Mix_Linked_Version : PSDL_version;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_Linked_Version'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_Linked_Version}
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-
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-{ Open the mixer with a certain audio format }
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-function Mix_OpenAudio( frequency : integer; format : Uint16; channels :
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- integer; chunksize : integer ) : integer;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_OpenAudio'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_OpenAudio}
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-
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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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-function Mix_AllocateChannels( numchannels : integer ) : integer;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_AllocateChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_AllocateChannels}
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-
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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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-function Mix_QuerySpec( var frequency : integer; var format : Uint16; var channels : integer ) : integer;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_QuerySpec'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_QuerySpec}
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-
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-{ Load a wave file or a music (.mod .s3m .it .xm) file }
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-function Mix_LoadWAV_RW( src : PSDL_RWops; freesrc : integer ) : PMix_Chunk;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_LoadWAV_RW'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_LoadWAV_RW}
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-
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-function Mix_LoadWAV( filename : PChar ) : PMix_Chunk;
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-
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-function Mix_LoadMUS( const filename : PChar ) : PMix_Music;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_LoadMUS'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_LoadMUS}
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-
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-(*#if 0 { This hasn't been hooked into music.c yet }
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-{ Load a music file from an SDL_RWop object (MikMod-specific currently)
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- Matt Campbell ([email protected]) April 2000 }
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-function Mix_LoadMUS_RW(SDL_RWops *rw) : PMix_Music; cdecl;
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-#endif*)
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-
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-{ Load a wave file of the mixer format from a memory buffer }
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-function Mix_QuickLoad_WAV( mem : PUint8 ) : PMix_Chunk;
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-cdecl; external {$IFDEF __GPC__}name 'Mix_QuickLoad_WAV'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_QuickLoad_WAV}
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-
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-{ Free an audio chunk previously loaded }
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-procedure Mix_FreeChunk( chunk : PMix_Chunk );
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-cdecl; external {$IFDEF __GPC__}name 'Mix_FreeChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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-{$EXTERNALSYM Mix_FreeChunk}
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-
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|
-procedure Mix_FreeMusic( music : PMix_Music );
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|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FreeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FreeMusic}
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|
|
-
|
|
|
-{ Find out the music format of a mixer music, or the currently playing
|
|
|
- music, if 'music' is NULL.}
|
|
|
-function Mix_GetMusicType( music : PMix_Music ) : TMix_MusicType;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GetMusicType'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GetMusicType}
|
|
|
-
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|
|
-{ Set a function that is called after all mixing is performed.
|
|
|
- This can be used to provide real-time visual display of the audio stream
|
|
|
- or add a custom mixer filter for the stream data.
|
|
|
-}
|
|
|
-procedure Mix_SetPostMix( mix_func : TMixFunction; arg : Pointer );
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|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_SetPostMix'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_SetPostMix}
|
|
|
-
|
|
|
-{ Add your own music player or additional mixer function.
|
|
|
- If 'mix_func' is NULL, the default music player is re-enabled.
|
|
|
- }
|
|
|
-procedure Mix_HookMusic( mix_func : TMixFunction; arg : Pointer );
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|
|
- cdecl; external {$IFDEF __GPC__}name 'Mix_HookMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_HookMusic}
|
|
|
-
|
|
|
-{ Add your own callback when the music has finished playing.
|
|
|
- }
|
|
|
-procedure Mix_HookMusicFinished( music_finished : Pointer );
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|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_HookMusicFinished'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_HookMusicFinished}
|
|
|
-
|
|
|
-{ Get a pointer to the user data for the current music hook }
|
|
|
-function Mix_GetMusicHookData : Pointer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GetMusicHookData'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GetMusicHookData}
|
|
|
-
|
|
|
-{* Add your own callback when a channel has finished playing. NULL
|
|
|
- * to disable callback.*}
|
|
|
-type
|
|
|
- {$IFNDEF __GPC__}
|
|
|
- TChannel_finished = procedure( channel: Integer ); cdecl;
|
|
|
- {$ELSE}
|
|
|
- TChannel_finished = procedure( channel: Integer );
|
|
|
- {$ENDIF}
|
|
|
-
|
|
|
-procedure Mix_ChannelFinished( channel_finished : TChannel_finished );
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|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_ChannelFinished'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_ChannelFinished}
|
|
|
-
|
|
|
-const
|
|
|
- MIX_CHANNEL_POST = -2;
|
|
|
-
|
|
|
- {* This is the format of a special effect callback:
|
|
|
- *
|
|
|
- * myeffect(int chan, void *stream, int len, void *udata);
|
|
|
- *
|
|
|
- * (chan) is the channel number that your effect is affecting. (stream) is
|
|
|
- * the buffer of data to work upon. (len) is the size of (stream), and
|
|
|
- * (udata) is a user-defined bit of data, which you pass as the last arg of
|
|
|
- * Mix_RegisterEffect(), and is passed back unmolested to your callback.
|
|
|
- * Your effect changes the contents of (stream) based on whatever parameters
|
|
|
- * are significant, or just leaves it be, if you prefer. You can do whatever
|
|
|
- * you like to the buffer, though, and it will continue in its changed state
|
|
|
- * down the mixing pipeline, through any other effect functions, then finally
|
|
|
- * to be mixed with the rest of the channels and music for the final output
|
|
|
- * stream.
|
|
|
- *}
|
|
|
-type
|
|
|
- {$IFNDEF __GPC__}
|
|
|
- TMix_EffectFunc = function( chan : integer; stream : Pointer; len : integer; udata : Pointer ) : Pointer; cdecl;
|
|
|
- {$ELSE}
|
|
|
- TMix_EffectFunc = function( chan : integer; stream : Pointer; len : integer; udata : Pointer ) : Pointer;
|
|
|
- {$ENDIF}
|
|
|
- {*
|
|
|
- * This is a callback that signifies that a channel has finished all its
|
|
|
- * loops and has completed playback. This gets called if the buffer
|
|
|
- * plays out normally, or if you call Mix_HaltChannel(), implicitly stop
|
|
|
- * a channel via Mix_AllocateChannels(), or unregister a callback while
|
|
|
- * it's still playing.
|
|
|
- *}
|
|
|
- {$IFNDEF __GPC__}
|
|
|
- TMix_EffectDone = function( chan : integer; udata : Pointer ) : Pointer; cdecl;
|
|
|
- {$ELSE}
|
|
|
- TMix_EffectDone = function( chan : integer; udata : Pointer ) : Pointer;
|
|
|
- {$ENDIF}
|
|
|
- {* Register a special effect function. At mixing time, the channel data is
|
|
|
- * copied into a buffer and passed through each registered effect function.
|
|
|
- * After it passes through all the functions, it is mixed into the final
|
|
|
- * output stream. The copy to buffer is performed once, then each effect
|
|
|
- * function performs on the output of the previous effect. Understand that
|
|
|
- * this extra copy to a buffer is not performed if there are no effects
|
|
|
- * registered for a given chunk, which saves CPU cycles, and any given
|
|
|
- * effect will be extra cycles, too, so it is crucial that your code run
|
|
|
- * fast. Also note that the data that your function is given is in the
|
|
|
- * format of the sound device, and not the format you gave to Mix_OpenAudio(),
|
|
|
- * although they may in reality be the same. This is an unfortunate but
|
|
|
- * necessary speed concern. Use Mix_QuerySpec() to determine if you can
|
|
|
- * handle the data before you register your effect, and take appropriate
|
|
|
- * actions.
|
|
|
- * You may also specify a callback (Mix_EffectDone_t) that is called when
|
|
|
- * the channel finishes playing. This gives you a more fine-grained control
|
|
|
- * than Mix_ChannelFinished(), in case you need to free effect-specific
|
|
|
- * resources, etc. If you don't need this, you can specify NULL.
|
|
|
- * You may set the callbacks before or after calling Mix_PlayChannel().
|
|
|
- * Things like Mix_SetPanning() are just internal special effect functions,
|
|
|
- * so if you are using that, you've already incurred the overhead of a copy
|
|
|
- * to a separate buffer, and that these effects will be in the queue with
|
|
|
- * any functions you've registered. The list of registered effects for a
|
|
|
- * channel is reset when a chunk finishes playing, so you need to explicitly
|
|
|
- * set them with each call to Mix_PlayChannel*().
|
|
|
- * You may also register a special effect function that is to be run after
|
|
|
- * final mixing occurs. The rules for these callbacks are identical to those
|
|
|
- * in Mix_RegisterEffect, but they are run after all the channels and the
|
|
|
- * music have been mixed into a single stream, whereas channel-specific
|
|
|
- * effects run on a given channel before any other mixing occurs. These
|
|
|
- * global effect callbacks are call "posteffects". Posteffects only have
|
|
|
- * their Mix_EffectDone_t function called when they are unregistered (since
|
|
|
- * the main output stream is never "done" in the same sense as a channel).
|
|
|
- * You must unregister them manually when you've had enough. Your callback
|
|
|
- * will be told that the channel being mixed is (MIX_CHANNEL_POST) if the
|
|
|
- * processing is considered a posteffect.
|
|
|
- *
|
|
|
- * After all these effects have finished processing, the callback registered
|
|
|
- * through Mix_SetPostMix() runs, and then the stream goes to the audio
|
|
|
- * device.
|
|
|
- *
|
|
|
- * returns zero if error (no such channel), nonzero if added.
|
|
|
- * Error messages can be retrieved from Mix_GetError().
|
|
|
- *}
|
|
|
-function Mix_RegisterEffect( chan : integer; f : TMix_EffectFunc; d : TMix_EffectDone; arg : Pointer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_RegisterEffect'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_RegisterEffect}
|
|
|
-
|
|
|
-{* You may not need to call this explicitly, unless you need to stop an
|
|
|
- * effect from processing in the middle of a chunk's playback.
|
|
|
- * Posteffects are never implicitly unregistered as they are for channels,
|
|
|
- * but they may be explicitly unregistered through this function by
|
|
|
- * specifying MIX_CHANNEL_POST for a channel.
|
|
|
- * returns zero if error (no such channel or effect), nonzero if removed.
|
|
|
- * Error messages can be retrieved from Mix_GetError().
|
|
|
- *}
|
|
|
-function Mix_UnregisterEffect( channel : integer; f : TMix_EffectFunc ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_UnregisterEffect'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_UnregisterEffect}
|
|
|
-
|
|
|
- {* You may not need to call this explicitly, unless you need to stop all
|
|
|
- * effects from processing in the middle of a chunk's playback. Note that
|
|
|
- * this will also shut off some internal effect processing, since
|
|
|
- * Mix_SetPanning( ) and others may use this API under the hood.This is
|
|
|
- * called internally when a channel completes playback.
|
|
|
- * Posteffects are never implicitly unregistered as they are for channels,
|
|
|
- * but they may be explicitly unregistered through this function by
|
|
|
- * specifying MIX_CHANNEL_POST for a channel.
|
|
|
- * returns zero if error( no such channel ), nonzero if all effects removed.
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- *}
|
|
|
-function Mix_UnregisterAllEffects( channel : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_UnregisterAllEffects'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_UnregisterAllEffects}
|
|
|
-
|
|
|
-const
|
|
|
- MIX_EFFECTSMAXSPEED = 'MIX_EFFECTSMAXSPEED';
|
|
|
-
|
|
|
- {*
|
|
|
- * These are the internally - defined mixing effects.They use the same API that
|
|
|
- * effects defined in the application use, but are provided here as a
|
|
|
- * convenience.Some effects can reduce their quality or use more memory in
|
|
|
- * the name of speed; to enable this, make sure the environment variable
|
|
|
- * MIX_EFFECTSMAXSPEED( see above ) is defined before you call
|
|
|
- * Mix_OpenAudio( ).
|
|
|
- * }
|
|
|
-
|
|
|
- {* set the panning of a channel.The left and right channels are specified
|
|
|
- * as integers between 0 and 255, quietest to loudest, respectively.
|
|
|
- *
|
|
|
- * Technically, this is just individual volume control for a sample with
|
|
|
- * two( stereo )channels, so it can be used for more than just panning.
|
|
|
- * if you want real panning, call it like this :
|
|
|
- *
|
|
|
- * Mix_SetPanning( channel, left, 255 - left );
|
|
|
- *
|
|
|
- * ...which isn't so hard.
|
|
|
- *
|
|
|
- * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
- * the panning will be done to the final mixed stream before passing it on
|
|
|
- * to the audio device.
|
|
|
- *
|
|
|
- * This uses the Mix_RegisterEffect( )API internally, and returns without
|
|
|
- * registering the effect function if the audio device is not configured
|
|
|
- * for stereo output.Setting both( left ) and ( right ) to 255 causes this
|
|
|
- * effect to be unregistered, since that is the data's normal state.
|
|
|
- *
|
|
|
- * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
- * nonzero if panning effect enabled.Note that an audio device in mono
|
|
|
- * mode is a no - op, but this call will return successful in that case .
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- * }
|
|
|
- function Mix_SetPanning( channel : integer; left : Uint8; right : Uint8 ) : integer;
|
|
|
- cdecl; external {$IFDEF __GPC__}name 'Mix_SetPanning'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
- {$EXTERNALSYM Mix_SetPanning}
|
|
|
-
|
|
|
- { * set the position ofa channel.( angle ) is an integer from 0 to 360, that
|
|
|
- * specifies the location of the sound in relation to the listener.( angle )
|
|
|
- * will be reduced as neccesary( 540 becomes 180 degrees, -100 becomes 260 ).
|
|
|
- * Angle 0 is due north, and rotates clockwise as the value increases.
|
|
|
- * for efficiency, the precision of this effect may be limited( angles 1
|
|
|
- * through 7 might all produce the same effect, 8 through 15 are equal, etc ).
|
|
|
- * ( distance ) is an integer between 0 and 255 that specifies the space
|
|
|
- * between the sound and the listener.The larger the number, the further
|
|
|
- * away the sound is .Using 255 does not guarantee that the channel will be
|
|
|
- * culled from the mixing process or be completely silent.For efficiency,
|
|
|
- * the precision of this effect may be limited( distance 0 through 5 might
|
|
|
- * all produce the same effect, 6 through 10 are equal, etc ).Setting( angle )
|
|
|
- * and ( distance ) to 0 unregisters this effect, since the data would be
|
|
|
- * unchanged.
|
|
|
- *
|
|
|
- * if you need more precise positional audio, consider using OpenAL for
|
|
|
- * spatialized effects instead of SDL_mixer.This is only meant to be a
|
|
|
- * basic effect for simple "3D" games.
|
|
|
- *
|
|
|
- * if the audio device is configured for mono output, then you won't get
|
|
|
- * any effectiveness from the angle; however, distance attenuation on the
|
|
|
- * channel will still occur.While this effect will function with stereo
|
|
|
- * voices, it makes more sense to use voices with only one channel of sound,
|
|
|
- * so when they are mixed through this effect, the positioning will sound
|
|
|
- * correct.You can convert them to mono through SDL before giving them to
|
|
|
- * the mixer in the first place if you like.
|
|
|
- *
|
|
|
- * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
- * the positioning will be done to the final mixed stream before passing it
|
|
|
- * on to the audio device.
|
|
|
- *
|
|
|
- * This is a convenience wrapper over Mix_SetDistance( ) and Mix_SetPanning( ).
|
|
|
- *
|
|
|
- * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
- * nonzero if position effect is enabled.
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- * }
|
|
|
- function Mix_SetPosition( channel :integer; angle : Sint16; distance : Uint8 ) : integer;
|
|
|
- cdecl; external {$IFDEF __GPC__}name 'Mix_SetPosition'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
- {$EXTERNALSYM Mix_SetPosition}
|
|
|
-
|
|
|
- {* set the "distance" of a channel.( distance ) is an integer from 0 to 255
|
|
|
- * that specifies the location of the sound in relation to the listener.
|
|
|
- * Distance 0 is overlapping the listener, and 255 is as far away as possible
|
|
|
- * A distance of 255 does not guarantee silence; in such a case , you might
|
|
|
- * want to try changing the chunk's volume, or just cull the sample from the
|
|
|
- * mixing process with Mix_HaltChannel( ).
|
|
|
- * for efficiency, the precision of this effect may be limited( distances 1
|
|
|
- * through 7 might all produce the same effect, 8 through 15 are equal, etc ).
|
|
|
- * ( distance ) is an integer between 0 and 255 that specifies the space
|
|
|
- * between the sound and the listener.The larger the number, the further
|
|
|
- * away the sound is .
|
|
|
- * Setting( distance ) to 0 unregisters this effect, since the data would be
|
|
|
- * unchanged.
|
|
|
- * if you need more precise positional audio, consider using OpenAL for
|
|
|
- * spatialized effects instead of SDL_mixer.This is only meant to be a
|
|
|
- * basic effect for simple "3D" games.
|
|
|
- *
|
|
|
- * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
- * the distance attenuation will be done to the final mixed stream before
|
|
|
- * passing it on to the audio device.
|
|
|
- *
|
|
|
- * This uses the Mix_RegisterEffect( )API internally.
|
|
|
- *
|
|
|
- * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
- * nonzero if position effect is enabled.
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- * }
|
|
|
- function Mix_SetDistance( channel : integer; distance : Uint8 ) : integer;
|
|
|
- cdecl; external {$IFDEF __GPC__}name 'Mix_SetDistance'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
- {$EXTERNALSYM Mix_SetDistance}
|
|
|
- { *
|
|
|
- * !!! FIXME : Haven't implemented, since the effect goes past the
|
|
|
- * end of the sound buffer.Will have to think about this.
|
|
|
- * - -ryan.
|
|
|
- * /
|
|
|
- { if 0
|
|
|
- { * Causes an echo effect to be mixed into a sound.( echo ) is the amount
|
|
|
- * of echo to mix.0 is no echo, 255 is infinite( and probably not
|
|
|
- * what you want ).
|
|
|
- *
|
|
|
- * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
- * the reverbing will be done to the final mixed stream before passing it on
|
|
|
- * to the audio device.
|
|
|
- *
|
|
|
- * This uses the Mix_RegisterEffect( )API internally.If you specify an echo
|
|
|
- * of zero, the effect is unregistered, as the data is already in that state.
|
|
|
- *
|
|
|
- * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
- * nonzero if reversing effect is enabled.
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- *
|
|
|
- extern no_parse_DECLSPEC int Mix_SetReverb( int channel, Uint8 echo );
|
|
|
- #E ndif}
|
|
|
- { * Causes a channel to reverse its stereo.This is handy if the user has his
|
|
|
- * speakers hooked up backwards, or you would like to have a minor bit of
|
|
|
- * psychedelia in your sound code. : )Calling this function with ( flip )
|
|
|
- * set to non - zero reverses the chunks's usual channels. If (flip) is zero,
|
|
|
- * the effect is unregistered.
|
|
|
- *
|
|
|
- * This uses the Mix_RegisterEffect( )API internally, and thus is probably
|
|
|
- * more CPU intensive than having the user just plug in his speakers
|
|
|
- * correctly.Mix_SetReverseStereo( )returns without registering the effect
|
|
|
- * function if the audio device is not configured for stereo output.
|
|
|
- *
|
|
|
- * if you specify MIX_CHANNEL_POST for ( channel ), then this the effect is used
|
|
|
- * on the final mixed stream before sending it on to the audio device( a
|
|
|
- * posteffect ).
|
|
|
- *
|
|
|
- * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
- * nonzero if reversing effect is enabled.Note that an audio device in mono
|
|
|
- * mode is a no - op, but this call will return successful in that case .
|
|
|
- * Error messages can be retrieved from Mix_GetError( ).
|
|
|
- * }
|
|
|
- function Mix_SetReverseStereo( channel : integer; flip : integer ) : integer;
|
|
|
- cdecl; external {$IFDEF __GPC__}name 'Mix_SetReverseStereo'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
- {$EXTERNALSYM Mix_SetReverseStereo}
|
|
|
- { end of effects API. - -ryan. *}
|
|
|
-
|
|
|
-{ Reserve the first channels (0 -> n-1) for the application, i.e. don't allocate
|
|
|
- them dynamically to the next sample if requested with a -1 value below.
|
|
|
- Returns the number of reserved channels.
|
|
|
- }
|
|
|
-function Mix_ReserveChannels( num : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_ReserveChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_ReserveChannels}
|
|
|
-
|
|
|
-{ Channel grouping functions }
|
|
|
-
|
|
|
-{ Attach a tag to a channel. A tag can be assigned to several mixer
|
|
|
- channels, to form groups of channels.
|
|
|
- If 'tag' is -1, the tag is removed (actually -1 is the tag used to
|
|
|
- represent the group of all the channels).
|
|
|
- Returns true if everything was OK.
|
|
|
- }
|
|
|
-function Mix_GroupChannel( which : integer; tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupChannel}
|
|
|
-
|
|
|
-{ Assign several consecutive channels to a group }
|
|
|
-function Mix_GroupChannels( from : integer; to_ : integer; tag : integer ) :
|
|
|
-integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupChannels}
|
|
|
-
|
|
|
-{ Finds the first available channel in a group of channels }
|
|
|
-function Mix_GroupAvailable( tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupAvailable'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupAvailable}
|
|
|
-
|
|
|
-{ Returns the number of channels in a group. This is also a subtle
|
|
|
- way to get the total number of channels when 'tag' is -1
|
|
|
- }
|
|
|
-function Mix_GroupCount( tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupCount'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupCount}
|
|
|
-
|
|
|
-{ Finds the "oldest" sample playing in a group of channels }
|
|
|
-function Mix_GroupOldest( tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupOldest'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupOldest}
|
|
|
-
|
|
|
-{ Finds the "most recent" (i.e. last) sample playing in a group of channels }
|
|
|
-function Mix_GroupNewer( tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GroupNewer'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GroupNewer}
|
|
|
-
|
|
|
-{ The same as above, but the sound is played at most 'ticks' milliseconds }
|
|
|
-function Mix_PlayChannelTimed( channel : integer; chunk : PMix_Chunk; loops : integer; ticks : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_PlayChannelTimed'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_PlayChannelTimed}
|
|
|
-
|
|
|
-{ Play an audio chunk on a specific channel.
|
|
|
- If the specified channel is -1, play on the first free channel.
|
|
|
- If 'loops' is greater than zero, loop the sound that many times.
|
|
|
- If 'loops' is -1, loop inifinitely (~65000 times).
|
|
|
- Returns which channel was used to play the sound.
|
|
|
-}
|
|
|
-function Mix_PlayChannel( channel : integer; chunk : PMix_Chunk; loops : integer ) : integer;
|
|
|
-
|
|
|
-function Mix_PlayMusic( music : PMix_Music; loops : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_PlayMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_PlayMusic}
|
|
|
-
|
|
|
-{ Fade in music or a channel over "ms" milliseconds, same semantics as the "Play" functions }
|
|
|
-function Mix_FadeInMusic( music : PMix_Music; loops : integer; ms : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadeInMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadeInMusic}
|
|
|
-
|
|
|
-function Mix_FadeInChannelTimed( channel : integer; chunk : PMix_Chunk; loops : integer; ms : integer; ticks : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadeInChannelTimed'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadeInChannelTimed}
|
|
|
-
|
|
|
-function Mix_FadeInChannel( channel : integer; chunk : PMix_Chunk; loops : integer; ms : integer ) : integer;
|
|
|
-
|
|
|
-{ Set the volume in the range of 0-128 of a specific channel or chunk.
|
|
|
- If the specified channel is -1, set volume for all channels.
|
|
|
- Returns the original volume.
|
|
|
- If the specified volume is -1, just return the current volume.
|
|
|
-}
|
|
|
-function Mix_Volume( channel : integer; volume : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_Volume'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_Volume}
|
|
|
-
|
|
|
-function Mix_VolumeChunk( chunk : PMix_Chunk; volume : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_VolumeChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_VolumeChunk}
|
|
|
-
|
|
|
-function Mix_VolumeMusic( volume : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_VolumeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_VolumeMusic}
|
|
|
-
|
|
|
-{ Halt playing of a particular channel }
|
|
|
-function Mix_HaltChannel( channel : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_HaltChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_HaltChannel}
|
|
|
-
|
|
|
-function Mix_HaltGroup( tag : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_HaltGroup'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_HaltGroup}
|
|
|
-
|
|
|
-function Mix_HaltMusic : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_HaltMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_HaltMusic}
|
|
|
-
|
|
|
-{ Change the expiration delay for a particular channel.
|
|
|
- The sample will stop playing after the 'ticks' milliseconds have elapsed,
|
|
|
- or remove the expiration if 'ticks' is -1
|
|
|
-}
|
|
|
-function Mix_ExpireChannel( channel : integer; ticks : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_ExpireChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_ExpireChannel}
|
|
|
-
|
|
|
-{ Halt a channel, fading it out progressively till it's silent
|
|
|
- The ms parameter indicates the number of milliseconds the fading
|
|
|
- will take.
|
|
|
- }
|
|
|
-function Mix_FadeOutChannel( which : integer; ms : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadeOutChannel}
|
|
|
-function Mix_FadeOutGroup( tag : integer; ms : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutGroup'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadeOutGroup}
|
|
|
-function Mix_FadeOutMusic( ms : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadeOutMusic}
|
|
|
-
|
|
|
-{ Query the fading status of a channel }
|
|
|
-function Mix_FadingMusic : TMix_Fading;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadingMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadingMusic}
|
|
|
-
|
|
|
-function Mix_FadingChannel( which : integer ) : TMix_Fading;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_FadingChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_FadingChannel}
|
|
|
-
|
|
|
-{ Pause/Resume a particular channel }
|
|
|
-procedure Mix_Pause( channel : integer );
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_Pause'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_Pause}
|
|
|
-
|
|
|
-procedure Mix_Resume( channel : integer );
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_Resume'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_Resume}
|
|
|
-
|
|
|
-function Mix_Paused( channel : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_Paused'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_Paused}
|
|
|
-
|
|
|
-{ Pause/Resume the music stream }
|
|
|
-procedure Mix_PauseMusic;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_PauseMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_PauseMusic}
|
|
|
-
|
|
|
-procedure Mix_ResumeMusic;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_ResumeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_ResumeMusic}
|
|
|
-
|
|
|
-procedure Mix_RewindMusic;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_RewindMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_RewindMusic}
|
|
|
-
|
|
|
-function Mix_PausedMusic : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_PausedMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_PausedMusic}
|
|
|
-
|
|
|
-{ Set the current position in the music stream.
|
|
|
- This returns 0 if successful, or -1 if it failed or isn't implemented.
|
|
|
- This function is only implemented for MOD music formats (set pattern
|
|
|
- order number) and for OGG music (set position in seconds), at the
|
|
|
- moment.
|
|
|
-}
|
|
|
-function Mix_SetMusicPosition( position : double ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_SetMusicPosition'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_SetMusicPosition}
|
|
|
-
|
|
|
-{ Check the status of a specific channel.
|
|
|
- If the specified channel is -1, check all channels.
|
|
|
-}
|
|
|
-function Mix_Playing( channel : integer ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_Playing'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_Playing}
|
|
|
-
|
|
|
-function Mix_PlayingMusic : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_PlayingMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_PlayingMusic}
|
|
|
-
|
|
|
-{ Stop music and set external music playback command }
|
|
|
-function Mix_SetMusicCMD( const command : PChar ) : integer;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_SetMusicCMD'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_SetMusicCMD}
|
|
|
-
|
|
|
-{ Synchro value is set by MikMod from modules while playing }
|
|
|
-function Mix_SetSynchroValue( value : integer ) : integer; overload;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_SetSynchroValue'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_SetSynchroValue}
|
|
|
-
|
|
|
-function Mix_GetSynchroValue : integer; overload;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GetSynchroValue'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_SetSynchroValue}
|
|
|
-
|
|
|
-{
|
|
|
- Get the Mix_Chunk currently associated with a mixer channel
|
|
|
- Returns nil if it's an invalid channel, or there's no chunk associated.
|
|
|
-}
|
|
|
-function Mix_GetChunk( channel : integer ) : PMix_Chunk;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_GetChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_GetChunk}
|
|
|
-
|
|
|
-{ Close the mixer, halting all playing audio }
|
|
|
-procedure Mix_CloseAudio;
|
|
|
-cdecl; external {$IFDEF __GPC__}name 'Mix_CloseAudio'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
-{$EXTERNALSYM Mix_CloseAudio}
|
|
|
-
|
|
|
-{ We'll use SDL for reporting errors }
|
|
|
-procedure Mix_SetError( fmt : PChar );
|
|
|
-
|
|
|
-function Mix_GetError : PChar;
|
|
|
-
|
|
|
-{------------------------------------------------------------------------------}
|
|
|
-{ initialization }
|
|
|
-{------------------------------------------------------------------------------}
|
|
|
-
|
|
|
-{------------------------------------------------------------------------------}
|
|
|
-
|
|
|
-implementation
|
|
|
-
|
|
|
-{$IFDEF __GPC__}
|
|
|
- {$L 'sdl_mixer'} { link sdl_mixer.dll.a or libsdl_mixer.so or libsdl_mixer.a }
|
|
|
-{$ENDIF}
|
|
|
-
|
|
|
-procedure SDL_MIXER_VERSION( var X : TSDL_version );
|
|
|
-begin
|
|
|
- X.major := SDL_MIXER_MAJOR_VERSION;
|
|
|
- X.minor := SDL_MIXER_MINOR_VERSION;
|
|
|
- X.patch := SDL_MIXER_PATCHLEVEL;
|
|
|
-end;
|
|
|
-
|
|
|
-function Mix_LoadWAV( filename : PChar ) : PMix_Chunk;
|
|
|
-begin
|
|
|
- result := Mix_LoadWAV_RW( SDL_RWFromFile( filename, 'rb' ), 1 );
|
|
|
-end;
|
|
|
-
|
|
|
-function Mix_PlayChannel( channel : integer; chunk : PMix_Chunk; loops : integer ) : integer;
|
|
|
-begin
|
|
|
- result := Mix_PlayChannelTimed( channel, chunk, loops, -1 );
|
|
|
-end;
|
|
|
-
|
|
|
-function Mix_FadeInChannel( channel : integer; chunk : PMix_Chunk; loops :
|
|
|
- integer; ms : integer ) : integer;
|
|
|
-begin
|
|
|
- result := Mix_FadeInChannelTimed( channel, chunk, loops, ms, -1 );
|
|
|
-end;
|
|
|
-
|
|
|
-procedure Mix_SetError( fmt : PChar );
|
|
|
-begin
|
|
|
- SDL_SetError( fmt );
|
|
|
-end;
|
|
|
-
|
|
|
-function Mix_GetError : PChar;
|
|
|
-begin
|
|
|
- result := SDL_GetError;
|
|
|
-end;
|
|
|
-
|
|
|
+unit sdl_mixer_nosmpeg;
|
|
|
+{******************************************************************************}
|
|
|
+{ Copy of SDL_Mixer without smpeg dependency and mp3 support }
|
|
|
+{******************************************************************************}
|
|
|
+
|
|
|
+{$I jedi-sdl.inc}
|
|
|
+
|
|
|
+interface
|
|
|
+
|
|
|
+uses
|
|
|
+{$IFDEF __GPC__}
|
|
|
+ gpc,
|
|
|
+{$ENDIF}
|
|
|
+ sdl;
|
|
|
+
|
|
|
+const
|
|
|
+{$IFDEF WINDOWS}
|
|
|
+ SDL_MixerLibName = 'SDL_mixer.dll';
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+{$IFDEF UNIX}
|
|
|
+{$IFDEF DARWIN}
|
|
|
+ SDL_MixerLibName = 'libSDL_mixer-1.2.0.dylib';
|
|
|
+{$ELSE}
|
|
|
+ {$IFDEF FPC}
|
|
|
+ SDL_MixerLibName = 'libSDL_mixer.so';
|
|
|
+ {$ELSE}
|
|
|
+ SDL_MixerLibName = 'libSDL_mixer-1.2.so.0';
|
|
|
+ {$ENDIF}
|
|
|
+{$ENDIF}
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+{$IFDEF MACOS}
|
|
|
+ SDL_MixerLibName = 'SDL_mixer';
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+ {* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL *}
|
|
|
+ SDL_MIXER_MAJOR_VERSION = 1;
|
|
|
+{$EXTERNALSYM MIX_MAJOR_VERSION}
|
|
|
+ SDL_MIXER_MINOR_VERSION = 2;
|
|
|
+{$EXTERNALSYM MIX_MINOR_VERSION}
|
|
|
+ SDL_MIXER_PATCHLEVEL = 7;
|
|
|
+{$EXTERNALSYM MIX_PATCHLEVEL}
|
|
|
+
|
|
|
+ // Backwards compatibility
|
|
|
+ MIX_MAJOR_VERSION = SDL_MIXER_MAJOR_VERSION;
|
|
|
+ MIX_MINOR_VERSION = SDL_MIXER_MINOR_VERSION;
|
|
|
+ MIX_PATCHLEVEL = SDL_MIXER_PATCHLEVEL;
|
|
|
+
|
|
|
+ // SDL_Mixer.h constants
|
|
|
+ { The default mixer has 8 simultaneous mixing channels }
|
|
|
+{$IFNDEF MIX_CHANNELS}
|
|
|
+ MIX_CHANNELS = 8;
|
|
|
+{$ENDIF}
|
|
|
+{$EXTERNALSYM MIX_CHANNELS}
|
|
|
+ { Good default values for a PC soundcard }
|
|
|
+ MIX_DEFAULT_FREQUENCY = 22050;
|
|
|
+{$EXTERNALSYM MIX_DEFAULT_FREQUENCY}
|
|
|
+
|
|
|
+{$IFDEF IA32}
|
|
|
+ MIX_DEFAULT_FORMAT = AUDIO_S16LSB;
|
|
|
+{$ELSE}
|
|
|
+ MIX_DEFAULT_FORMAT = AUDIO_S16MSB;
|
|
|
+{$ENDIF}
|
|
|
+{$EXTERNALSYM MIX_DEFAULT_FORMAT}
|
|
|
+
|
|
|
+ MIX_DEFAULT_CHANNELS = 2;
|
|
|
+{$EXTERNALSYM MIX_DEFAULT_CHANNELS}
|
|
|
+ MIX_MAX_VOLUME = 128; { Volume of a chunk }
|
|
|
+{$EXTERNALSYM MIX_MAX_VOLUME}
|
|
|
+
|
|
|
+ PATH_MAX = 255;
|
|
|
+
|
|
|
+ // mikmod.h constants
|
|
|
+ {*
|
|
|
+ * Library version
|
|
|
+ *}
|
|
|
+ LIBMIKMOD_VERSION_MAJOR = 3;
|
|
|
+ LIBMIKMOD_VERSION_MINOR = 1;
|
|
|
+ LIBMIKMOD_REVISION = 8;
|
|
|
+ LIBMIKMOD_VERSION = ( ( LIBMIKMOD_VERSION_MAJOR shl 16 ) or
|
|
|
+ ( LIBMIKMOD_VERSION_MINOR shl 8 ) or
|
|
|
+ ( LIBMIKMOD_REVISION ) );
|
|
|
+
|
|
|
+type
|
|
|
+ //music_cmd.h types
|
|
|
+ PMusicCMD = ^TMusicCMD;
|
|
|
+ TMusicCMD = record
|
|
|
+ filename : array[ 0..PATH_MAX - 1 ] of char;
|
|
|
+ cmd : array[ 0..PATH_MAX - 1 ] of char;
|
|
|
+ pid : TSYS_ThreadHandle;
|
|
|
+ end;
|
|
|
+
|
|
|
+ //wavestream.h types
|
|
|
+ PWAVStream = ^TWAVStream;
|
|
|
+ TWAVStream = record
|
|
|
+ wavefp : Pointer;
|
|
|
+ start : longint;
|
|
|
+ stop : longint;
|
|
|
+ cvt : TSDL_AudioCVT;
|
|
|
+ end;
|
|
|
+
|
|
|
+ //playmidi.h types
|
|
|
+ PMidiEvent = ^TMidiEvent;
|
|
|
+ TMidiEvent = record
|
|
|
+ time : Longint;
|
|
|
+ channel : uint8;
|
|
|
+ type_ : uint8;
|
|
|
+ a : uint8;
|
|
|
+ b : uint8;
|
|
|
+ end;
|
|
|
+
|
|
|
+ PMidiSong = ^TMidiSong;
|
|
|
+ TMidiSong = record
|
|
|
+ samples : Longint;
|
|
|
+ events : PMidiEvent;
|
|
|
+ end;
|
|
|
+
|
|
|
+ //music_ogg.h types
|
|
|
+ POGG_Music = ^TOGG_Music;
|
|
|
+ TOGG_Music = record
|
|
|
+ playing : integer;
|
|
|
+ volume : integer;
|
|
|
+ //vf: OggVorbis_File;
|
|
|
+ section : integer;
|
|
|
+ cvt : TSDL_AudioCVT;
|
|
|
+ len_available : integer;
|
|
|
+ snd_available : PUint8;
|
|
|
+ end;
|
|
|
+
|
|
|
+ // mikmod.h types
|
|
|
+ {*
|
|
|
+ * Error codes
|
|
|
+ *}
|
|
|
+ TErrorEnum = (
|
|
|
+ MMERR_OPENING_FILE,
|
|
|
+ MMERR_OUT_OF_MEMORY,
|
|
|
+ MMERR_DYNAMIC_LINKING,
|
|
|
+ MMERR_SAMPLE_TOO_BIG,
|
|
|
+ MMERR_OUT_OF_HANDLES,
|
|
|
+ MMERR_UNKNOWN_WAVE_TYPE,
|
|
|
+ MMERR_LOADING_PATTERN,
|
|
|
+ MMERR_LOADING_TRACK,
|
|
|
+ MMERR_LOADING_HEADER,
|
|
|
+ MMERR_LOADING_SAMPLEINFO,
|
|
|
+ MMERR_NOT_A_MODULE,
|
|
|
+ MMERR_NOT_A_STREAM,
|
|
|
+ MMERR_MED_SYNTHSAMPLES,
|
|
|
+ MMERR_ITPACK_INVALID_DATA,
|
|
|
+ MMERR_DETECTING_DEVICE,
|
|
|
+ MMERR_INVALID_DEVICE,
|
|
|
+ MMERR_INITIALIZING_MIXER,
|
|
|
+ MMERR_OPENING_AUDIO,
|
|
|
+ MMERR_8BIT_ONLY,
|
|
|
+ MMERR_16BIT_ONLY,
|
|
|
+ MMERR_STEREO_ONLY,
|
|
|
+ MMERR_ULAW,
|
|
|
+ MMERR_NON_BLOCK,
|
|
|
+ MMERR_AF_AUDIO_PORT,
|
|
|
+ MMERR_AIX_CONFIG_INIT,
|
|
|
+ MMERR_AIX_CONFIG_CONTROL,
|
|
|
+ MMERR_AIX_CONFIG_START,
|
|
|
+ MMERR_GUS_SETTINGS,
|
|
|
+ MMERR_GUS_RESET,
|
|
|
+ MMERR_GUS_TIMER,
|
|
|
+ MMERR_HP_SETSAMPLESIZE,
|
|
|
+ MMERR_HP_SETSPEED,
|
|
|
+ MMERR_HP_CHANNELS,
|
|
|
+ MMERR_HP_AUDIO_OUTPUT,
|
|
|
+ MMERR_HP_AUDIO_DESC,
|
|
|
+ MMERR_HP_BUFFERSIZE,
|
|
|
+ MMERR_OSS_SETFRAGMENT,
|
|
|
+ MMERR_OSS_SETSAMPLESIZE,
|
|
|
+ MMERR_OSS_SETSTEREO,
|
|
|
+ MMERR_OSS_SETSPEED,
|
|
|
+ MMERR_SGI_SPEED,
|
|
|
+ MMERR_SGI_16BIT,
|
|
|
+ MMERR_SGI_8BIT,
|
|
|
+ MMERR_SGI_STEREO,
|
|
|
+ MMERR_SGI_MONO,
|
|
|
+ MMERR_SUN_INIT,
|
|
|
+ MMERR_OS2_MIXSETUP,
|
|
|
+ MMERR_OS2_SEMAPHORE,
|
|
|
+ MMERR_OS2_TIMER,
|
|
|
+ MMERR_OS2_THREAD,
|
|
|
+ MMERR_DS_PRIORITY,
|
|
|
+ MMERR_DS_BUFFER,
|
|
|
+ MMERR_DS_FORMAT,
|
|
|
+ MMERR_DS_NOTIFY,
|
|
|
+ MMERR_DS_EVENT,
|
|
|
+ MMERR_DS_THREAD,
|
|
|
+ MMERR_DS_UPDATE,
|
|
|
+ MMERR_WINMM_HANDLE,
|
|
|
+ MMERR_WINMM_ALLOCATED,
|
|
|
+ MMERR_WINMM_DEVICEID,
|
|
|
+ MMERR_WINMM_FORMAT,
|
|
|
+ MMERR_WINMM_UNKNOWN,
|
|
|
+ MMERR_MAC_SPEED,
|
|
|
+ MMERR_MAC_START,
|
|
|
+ MMERR_MAX
|
|
|
+ );
|
|
|
+
|
|
|
+ PMODULE = ^TMODULE;
|
|
|
+ TMODULE = record
|
|
|
+ (* general module information *)
|
|
|
+ //CHAR* songname; (* name of the song *)
|
|
|
+ //CHAR* modtype; (* string type of module loaded *)
|
|
|
+ //CHAR* comment; (* module comments *)
|
|
|
+ //UWORD flags; (* See module flags above *)
|
|
|
+ //UBYTE numchn; (* number of module channels *)
|
|
|
+ //UBYTE numvoices; (* max # voices used for full NNA playback *)
|
|
|
+ //UWORD numpos; (* number of positions in this song *)
|
|
|
+ //UWORD numpat; (* number of patterns in this song *)
|
|
|
+ //UWORD numins; (* number of instruments *)
|
|
|
+ //UWORD numsmp; (* number of samples *)
|
|
|
+ //type = record INSTRUMENT* instruments; (* all instruments *)
|
|
|
+ //type = record SAMPLE* samples; (* all samples *)
|
|
|
+ //UBYTE realchn; (* real number of channels used *)
|
|
|
+ //UBYTE totalchn; (* total number of channels used (incl NNAs) *)
|
|
|
+ (* playback settings *)
|
|
|
+ //UWORD reppos; (* restart position *)
|
|
|
+ //UBYTE initspeed; (* initial song speed *)
|
|
|
+ //UWORD inittempo; (* initial song tempo *)
|
|
|
+ //UBYTE initvolume; (* initial global volume (0 - 128) *)
|
|
|
+ //UWORD panning : array[ 0..64- 1 ] of ; (* 64 panning positions *)
|
|
|
+ //UBYTE chanvol : array[ 0..64- 1 ] of ; (* 64 channel positions *)
|
|
|
+ //UWORD bpm; (* current beats-per-minute speed *)
|
|
|
+ //UWORD sngspd; (* current song speed *)
|
|
|
+ //SWORD volume; (* song volume (0-128) (or user volume) *)
|
|
|
+ //BOOL extspd; (* extended speed flag (default enabled) *)
|
|
|
+ //BOOL panflag; (* panning flag (default enabled) *)
|
|
|
+ //BOOL wrap; (* wrap module ? (default disabled) *)
|
|
|
+ //BOOL loop; (* allow module to loop ? (default enabled) *)
|
|
|
+ //BOOL fadeout; (* volume fade out during last pattern *)
|
|
|
+ //UWORD patpos; (* current row number *)
|
|
|
+ //SWORD sngpos; (* current song position *)
|
|
|
+ //ULONG sngtime; (* current song time in 2^-10 seconds *)
|
|
|
+ //SWORD relspd; (* relative speed factor *)
|
|
|
+ (* internal module representation *)
|
|
|
+ //UWORD numtrk; (* number of tracks *)
|
|
|
+ //UBYTE** tracks; (* array of numtrk pointers to tracks *)
|
|
|
+ //UWORD* patterns; (* array of Patterns *)
|
|
|
+ //UWORD* pattrows; (* array of number of rows for each pattern *)
|
|
|
+ //UWORD* positions; (* all positions *)
|
|
|
+ //BOOL forbid; (* if true, no player updatenot *)
|
|
|
+ //UWORD numrow; (* number of rows on current pattern *)
|
|
|
+ //UWORD vbtick; (* tick counter (counts from 0 to sngspd) *)
|
|
|
+ //UWORD sngremainder;(* used for song time computation *)
|
|
|
+ //type = record MP_CONTROL* control; (* Effects Channel info (size pf.numchn) *)
|
|
|
+ //type = record MP_VOICE* voice; (* Audio Voice information (size md_numchn) *)
|
|
|
+ //UBYTE globalslide; (* global volume slide rate *)
|
|
|
+ //UBYTE pat_repcrazy;(* module has just looped to position -1 *)
|
|
|
+ //UWORD patbrk; (* position where to start a new pattern *)
|
|
|
+ //UBYTE patdly; (* patterndelay counter (command memory) *)
|
|
|
+ //UBYTE patdly2; (* patterndelay counter (real one) *)
|
|
|
+ //SWORD posjmp; (* flag to indicate a jump is needed... *)
|
|
|
+ end;
|
|
|
+
|
|
|
+ PUNIMOD = ^TUNIMOD;
|
|
|
+ TUNIMOD = TMODULE;
|
|
|
+
|
|
|
+ //SDL_mixer.h types
|
|
|
+ { The internal format for an audio chunk }
|
|
|
+ PMix_Chunk = ^TMix_Chunk;
|
|
|
+ TMix_Chunk = record
|
|
|
+ allocated : integer;
|
|
|
+ abuf : PUint8;
|
|
|
+ alen : Uint32;
|
|
|
+ volume : Uint8; { Per-sample volume, 0-128 }
|
|
|
+ end;
|
|
|
+ Mix_Chunk = TMix_Chunk;
|
|
|
+
|
|
|
+ { The different fading types supported }
|
|
|
+ TMix_Fading = (
|
|
|
+ MIX_NO_FADING,
|
|
|
+ MIX_FADING_OUT,
|
|
|
+ MIX_FADING_IN
|
|
|
+ );
|
|
|
+ Mix_Fading = TMix_Fading;
|
|
|
+
|
|
|
+ TMix_MusicType = (
|
|
|
+ MUS_NONE,
|
|
|
+ MUS_CMD,
|
|
|
+ MUS_WAV,
|
|
|
+ MUS_MOD,
|
|
|
+ MUS_MID,
|
|
|
+ MUS_OGG
|
|
|
+ );
|
|
|
+ Mix_MusicType = TMix_MusicType;
|
|
|
+
|
|
|
+ TMusicUnion = record
|
|
|
+ case Byte of
|
|
|
+ 0 : ( cmd : PMusicCMD );
|
|
|
+ 1 : ( wave : PWAVStream );
|
|
|
+ 2 : ( module : PUNIMOD );
|
|
|
+ 3 : ( midi : TMidiSong );
|
|
|
+ 4 : ( ogg : POGG_music );
|
|
|
+ end;
|
|
|
+
|
|
|
+ P_Mix_Music = ^T_Mix_Music;
|
|
|
+ T_Mix_Music = record
|
|
|
+ type_ : TMix_MusicType;
|
|
|
+ data : TMusicUnion;
|
|
|
+ fading : TMix_Fading;
|
|
|
+ fade_volume : integer;
|
|
|
+ fade_step : integer;
|
|
|
+ fade_steps : integer;
|
|
|
+ error : integer;
|
|
|
+ end;
|
|
|
+
|
|
|
+ { The internal format for a music chunk interpreted via mikmod }
|
|
|
+ PMix_Music = ^TMix_Music;
|
|
|
+ TMix_Music = T_Mix_Music;
|
|
|
+
|
|
|
+ {$IFNDEF __GPC__}
|
|
|
+ TMixFunction = function( udata : Pointer; stream : PUint8; len : integer ) : Pointer; cdecl;
|
|
|
+ {$ELSE}
|
|
|
+ TMixFunction = function( udata : Pointer; stream : PUint8; len : integer ) : Pointer;
|
|
|
+ {$ENDIF}
|
|
|
+
|
|
|
+{ This macro can be used to fill a version structure with the compile-time
|
|
|
+ version of the SDL_mixer library. }
|
|
|
+procedure SDL_MIXER_VERSION(var X: TSDL_Version);
|
|
|
+{$EXTERNALSYM SDL_MIXER_VERSION}
|
|
|
+
|
|
|
+{ This function gets the version of the dynamically linked SDL_mixer library.
|
|
|
+ It should NOT be used to fill a version structure, instead you should use the
|
|
|
+ SDL_MIXER_VERSION() macro. }
|
|
|
+function Mix_Linked_Version : PSDL_version;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_Linked_Version'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_Linked_Version}
|
|
|
+
|
|
|
+{ Open the mixer with a certain audio format }
|
|
|
+function Mix_OpenAudio( frequency : integer; format : Uint16; channels :
|
|
|
+ integer; chunksize : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_OpenAudio'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_OpenAudio}
|
|
|
+
|
|
|
+{ Dynamically change the number of channels managed by the mixer.
|
|
|
+ If decreasing the number of channels, the upper channels are
|
|
|
+ stopped.
|
|
|
+ This function returns the new number of allocated channels.
|
|
|
+ }
|
|
|
+function Mix_AllocateChannels( numchannels : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_AllocateChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_AllocateChannels}
|
|
|
+
|
|
|
+{ Find out what the actual audio device parameters are.
|
|
|
+ This function returns 1 if the audio has been opened, 0 otherwise.
|
|
|
+ }
|
|
|
+function Mix_QuerySpec( var frequency : integer; var format : Uint16; var channels : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_QuerySpec'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_QuerySpec}
|
|
|
+
|
|
|
+{ Load a wave file or a music (.mod .s3m .it .xm) file }
|
|
|
+function Mix_LoadWAV_RW( src : PSDL_RWops; freesrc : integer ) : PMix_Chunk;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_LoadWAV_RW'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_LoadWAV_RW}
|
|
|
+
|
|
|
+function Mix_LoadWAV( filename : PChar ) : PMix_Chunk;
|
|
|
+
|
|
|
+function Mix_LoadMUS( const filename : PChar ) : PMix_Music;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_LoadMUS'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_LoadMUS}
|
|
|
+
|
|
|
+(*#if 0 { This hasn't been hooked into music.c yet }
|
|
|
+{ Load a music file from an SDL_RWop object (MikMod-specific currently)
|
|
|
+ Matt Campbell ([email protected]) April 2000 }
|
|
|
+function Mix_LoadMUS_RW(SDL_RWops *rw) : PMix_Music; cdecl;
|
|
|
+#endif*)
|
|
|
+
|
|
|
+{ Load a wave file of the mixer format from a memory buffer }
|
|
|
+function Mix_QuickLoad_WAV( mem : PUint8 ) : PMix_Chunk;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_QuickLoad_WAV'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_QuickLoad_WAV}
|
|
|
+
|
|
|
+{ Free an audio chunk previously loaded }
|
|
|
+procedure Mix_FreeChunk( chunk : PMix_Chunk );
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FreeChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_FreeChunk}
|
|
|
+
|
|
|
+procedure Mix_FreeMusic( music : PMix_Music );
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FreeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_FreeMusic}
|
|
|
+
|
|
|
+{ Find out the music format of a mixer music, or the currently playing
|
|
|
+ music, if 'music' is NULL.}
|
|
|
+function Mix_GetMusicType( music : PMix_Music ) : TMix_MusicType;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GetMusicType'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GetMusicType}
|
|
|
+
|
|
|
+{ Set a function that is called after all mixing is performed.
|
|
|
+ This can be used to provide real-time visual display of the audio stream
|
|
|
+ or add a custom mixer filter for the stream data.
|
|
|
+}
|
|
|
+procedure Mix_SetPostMix( mix_func : TMixFunction; arg : Pointer );
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_SetPostMix'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_SetPostMix}
|
|
|
+
|
|
|
+{ Add your own music player or additional mixer function.
|
|
|
+ If 'mix_func' is NULL, the default music player is re-enabled.
|
|
|
+ }
|
|
|
+procedure Mix_HookMusic( mix_func : TMixFunction; arg : Pointer );
|
|
|
+ cdecl; external {$IFDEF __GPC__}name 'Mix_HookMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_HookMusic}
|
|
|
+
|
|
|
+{ Add your own callback when the music has finished playing.
|
|
|
+ }
|
|
|
+procedure Mix_HookMusicFinished( music_finished : Pointer );
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_HookMusicFinished'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_HookMusicFinished}
|
|
|
+
|
|
|
+{ Get a pointer to the user data for the current music hook }
|
|
|
+function Mix_GetMusicHookData : Pointer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GetMusicHookData'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GetMusicHookData}
|
|
|
+
|
|
|
+{* Add your own callback when a channel has finished playing. NULL
|
|
|
+ * to disable callback.*}
|
|
|
+type
|
|
|
+ {$IFNDEF __GPC__}
|
|
|
+ TChannel_finished = procedure( channel: Integer ); cdecl;
|
|
|
+ {$ELSE}
|
|
|
+ TChannel_finished = procedure( channel: Integer );
|
|
|
+ {$ENDIF}
|
|
|
+
|
|
|
+procedure Mix_ChannelFinished( channel_finished : TChannel_finished );
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_ChannelFinished'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_ChannelFinished}
|
|
|
+
|
|
|
+const
|
|
|
+ MIX_CHANNEL_POST = -2;
|
|
|
+
|
|
|
+ {* This is the format of a special effect callback:
|
|
|
+ *
|
|
|
+ * myeffect(int chan, void *stream, int len, void *udata);
|
|
|
+ *
|
|
|
+ * (chan) is the channel number that your effect is affecting. (stream) is
|
|
|
+ * the buffer of data to work upon. (len) is the size of (stream), and
|
|
|
+ * (udata) is a user-defined bit of data, which you pass as the last arg of
|
|
|
+ * Mix_RegisterEffect(), and is passed back unmolested to your callback.
|
|
|
+ * Your effect changes the contents of (stream) based on whatever parameters
|
|
|
+ * are significant, or just leaves it be, if you prefer. You can do whatever
|
|
|
+ * you like to the buffer, though, and it will continue in its changed state
|
|
|
+ * down the mixing pipeline, through any other effect functions, then finally
|
|
|
+ * to be mixed with the rest of the channels and music for the final output
|
|
|
+ * stream.
|
|
|
+ *}
|
|
|
+type
|
|
|
+ {$IFNDEF __GPC__}
|
|
|
+ TMix_EffectFunc = function( chan : integer; stream : Pointer; len : integer; udata : Pointer ) : Pointer; cdecl;
|
|
|
+ {$ELSE}
|
|
|
+ TMix_EffectFunc = function( chan : integer; stream : Pointer; len : integer; udata : Pointer ) : Pointer;
|
|
|
+ {$ENDIF}
|
|
|
+ {*
|
|
|
+ * This is a callback that signifies that a channel has finished all its
|
|
|
+ * loops and has completed playback. This gets called if the buffer
|
|
|
+ * plays out normally, or if you call Mix_HaltChannel(), implicitly stop
|
|
|
+ * a channel via Mix_AllocateChannels(), or unregister a callback while
|
|
|
+ * it's still playing.
|
|
|
+ *}
|
|
|
+ {$IFNDEF __GPC__}
|
|
|
+ TMix_EffectDone = function( chan : integer; udata : Pointer ) : Pointer; cdecl;
|
|
|
+ {$ELSE}
|
|
|
+ TMix_EffectDone = function( chan : integer; udata : Pointer ) : Pointer;
|
|
|
+ {$ENDIF}
|
|
|
+ {* Register a special effect function. At mixing time, the channel data is
|
|
|
+ * copied into a buffer and passed through each registered effect function.
|
|
|
+ * After it passes through all the functions, it is mixed into the final
|
|
|
+ * output stream. The copy to buffer is performed once, then each effect
|
|
|
+ * function performs on the output of the previous effect. Understand that
|
|
|
+ * this extra copy to a buffer is not performed if there are no effects
|
|
|
+ * registered for a given chunk, which saves CPU cycles, and any given
|
|
|
+ * effect will be extra cycles, too, so it is crucial that your code run
|
|
|
+ * fast. Also note that the data that your function is given is in the
|
|
|
+ * format of the sound device, and not the format you gave to Mix_OpenAudio(),
|
|
|
+ * although they may in reality be the same. This is an unfortunate but
|
|
|
+ * necessary speed concern. Use Mix_QuerySpec() to determine if you can
|
|
|
+ * handle the data before you register your effect, and take appropriate
|
|
|
+ * actions.
|
|
|
+ * You may also specify a callback (Mix_EffectDone_t) that is called when
|
|
|
+ * the channel finishes playing. This gives you a more fine-grained control
|
|
|
+ * than Mix_ChannelFinished(), in case you need to free effect-specific
|
|
|
+ * resources, etc. If you don't need this, you can specify NULL.
|
|
|
+ * You may set the callbacks before or after calling Mix_PlayChannel().
|
|
|
+ * Things like Mix_SetPanning() are just internal special effect functions,
|
|
|
+ * so if you are using that, you've already incurred the overhead of a copy
|
|
|
+ * to a separate buffer, and that these effects will be in the queue with
|
|
|
+ * any functions you've registered. The list of registered effects for a
|
|
|
+ * channel is reset when a chunk finishes playing, so you need to explicitly
|
|
|
+ * set them with each call to Mix_PlayChannel*().
|
|
|
+ * You may also register a special effect function that is to be run after
|
|
|
+ * final mixing occurs. The rules for these callbacks are identical to those
|
|
|
+ * in Mix_RegisterEffect, but they are run after all the channels and the
|
|
|
+ * music have been mixed into a single stream, whereas channel-specific
|
|
|
+ * effects run on a given channel before any other mixing occurs. These
|
|
|
+ * global effect callbacks are call "posteffects". Posteffects only have
|
|
|
+ * their Mix_EffectDone_t function called when they are unregistered (since
|
|
|
+ * the main output stream is never "done" in the same sense as a channel).
|
|
|
+ * You must unregister them manually when you've had enough. Your callback
|
|
|
+ * will be told that the channel being mixed is (MIX_CHANNEL_POST) if the
|
|
|
+ * processing is considered a posteffect.
|
|
|
+ *
|
|
|
+ * After all these effects have finished processing, the callback registered
|
|
|
+ * through Mix_SetPostMix() runs, and then the stream goes to the audio
|
|
|
+ * device.
|
|
|
+ *
|
|
|
+ * returns zero if error (no such channel), nonzero if added.
|
|
|
+ * Error messages can be retrieved from Mix_GetError().
|
|
|
+ *}
|
|
|
+function Mix_RegisterEffect( chan : integer; f : TMix_EffectFunc; d : TMix_EffectDone; arg : Pointer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_RegisterEffect'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_RegisterEffect}
|
|
|
+
|
|
|
+{* You may not need to call this explicitly, unless you need to stop an
|
|
|
+ * effect from processing in the middle of a chunk's playback.
|
|
|
+ * Posteffects are never implicitly unregistered as they are for channels,
|
|
|
+ * but they may be explicitly unregistered through this function by
|
|
|
+ * specifying MIX_CHANNEL_POST for a channel.
|
|
|
+ * returns zero if error (no such channel or effect), nonzero if removed.
|
|
|
+ * Error messages can be retrieved from Mix_GetError().
|
|
|
+ *}
|
|
|
+function Mix_UnregisterEffect( channel : integer; f : TMix_EffectFunc ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_UnregisterEffect'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_UnregisterEffect}
|
|
|
+
|
|
|
+ {* You may not need to call this explicitly, unless you need to stop all
|
|
|
+ * effects from processing in the middle of a chunk's playback. Note that
|
|
|
+ * this will also shut off some internal effect processing, since
|
|
|
+ * Mix_SetPanning( ) and others may use this API under the hood.This is
|
|
|
+ * called internally when a channel completes playback.
|
|
|
+ * Posteffects are never implicitly unregistered as they are for channels,
|
|
|
+ * but they may be explicitly unregistered through this function by
|
|
|
+ * specifying MIX_CHANNEL_POST for a channel.
|
|
|
+ * returns zero if error( no such channel ), nonzero if all effects removed.
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ *}
|
|
|
+function Mix_UnregisterAllEffects( channel : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_UnregisterAllEffects'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_UnregisterAllEffects}
|
|
|
+
|
|
|
+const
|
|
|
+ MIX_EFFECTSMAXSPEED = 'MIX_EFFECTSMAXSPEED';
|
|
|
+
|
|
|
+ {*
|
|
|
+ * These are the internally - defined mixing effects.They use the same API that
|
|
|
+ * effects defined in the application use, but are provided here as a
|
|
|
+ * convenience.Some effects can reduce their quality or use more memory in
|
|
|
+ * the name of speed; to enable this, make sure the environment variable
|
|
|
+ * MIX_EFFECTSMAXSPEED( see above ) is defined before you call
|
|
|
+ * Mix_OpenAudio( ).
|
|
|
+ * }
|
|
|
+
|
|
|
+ {* set the panning of a channel.The left and right channels are specified
|
|
|
+ * as integers between 0 and 255, quietest to loudest, respectively.
|
|
|
+ *
|
|
|
+ * Technically, this is just individual volume control for a sample with
|
|
|
+ * two( stereo )channels, so it can be used for more than just panning.
|
|
|
+ * if you want real panning, call it like this :
|
|
|
+ *
|
|
|
+ * Mix_SetPanning( channel, left, 255 - left );
|
|
|
+ *
|
|
|
+ * ...which isn't so hard.
|
|
|
+ *
|
|
|
+ * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
+ * the panning will be done to the final mixed stream before passing it on
|
|
|
+ * to the audio device.
|
|
|
+ *
|
|
|
+ * This uses the Mix_RegisterEffect( )API internally, and returns without
|
|
|
+ * registering the effect function if the audio device is not configured
|
|
|
+ * for stereo output.Setting both( left ) and ( right ) to 255 causes this
|
|
|
+ * effect to be unregistered, since that is the data's normal state.
|
|
|
+ *
|
|
|
+ * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
+ * nonzero if panning effect enabled.Note that an audio device in mono
|
|
|
+ * mode is a no - op, but this call will return successful in that case .
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ * }
|
|
|
+ function Mix_SetPanning( channel : integer; left : Uint8; right : Uint8 ) : integer;
|
|
|
+ cdecl; external {$IFDEF __GPC__}name 'Mix_SetPanning'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+ {$EXTERNALSYM Mix_SetPanning}
|
|
|
+
|
|
|
+ { * set the position ofa channel.( angle ) is an integer from 0 to 360, that
|
|
|
+ * specifies the location of the sound in relation to the listener.( angle )
|
|
|
+ * will be reduced as neccesary( 540 becomes 180 degrees, -100 becomes 260 ).
|
|
|
+ * Angle 0 is due north, and rotates clockwise as the value increases.
|
|
|
+ * for efficiency, the precision of this effect may be limited( angles 1
|
|
|
+ * through 7 might all produce the same effect, 8 through 15 are equal, etc ).
|
|
|
+ * ( distance ) is an integer between 0 and 255 that specifies the space
|
|
|
+ * between the sound and the listener.The larger the number, the further
|
|
|
+ * away the sound is .Using 255 does not guarantee that the channel will be
|
|
|
+ * culled from the mixing process or be completely silent.For efficiency,
|
|
|
+ * the precision of this effect may be limited( distance 0 through 5 might
|
|
|
+ * all produce the same effect, 6 through 10 are equal, etc ).Setting( angle )
|
|
|
+ * and ( distance ) to 0 unregisters this effect, since the data would be
|
|
|
+ * unchanged.
|
|
|
+ *
|
|
|
+ * if you need more precise positional audio, consider using OpenAL for
|
|
|
+ * spatialized effects instead of SDL_mixer.This is only meant to be a
|
|
|
+ * basic effect for simple "3D" games.
|
|
|
+ *
|
|
|
+ * if the audio device is configured for mono output, then you won't get
|
|
|
+ * any effectiveness from the angle; however, distance attenuation on the
|
|
|
+ * channel will still occur.While this effect will function with stereo
|
|
|
+ * voices, it makes more sense to use voices with only one channel of sound,
|
|
|
+ * so when they are mixed through this effect, the positioning will sound
|
|
|
+ * correct.You can convert them to mono through SDL before giving them to
|
|
|
+ * the mixer in the first place if you like.
|
|
|
+ *
|
|
|
+ * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
+ * the positioning will be done to the final mixed stream before passing it
|
|
|
+ * on to the audio device.
|
|
|
+ *
|
|
|
+ * This is a convenience wrapper over Mix_SetDistance( ) and Mix_SetPanning( ).
|
|
|
+ *
|
|
|
+ * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
+ * nonzero if position effect is enabled.
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ * }
|
|
|
+ function Mix_SetPosition( channel :integer; angle : Sint16; distance : Uint8 ) : integer;
|
|
|
+ cdecl; external {$IFDEF __GPC__}name 'Mix_SetPosition'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+ {$EXTERNALSYM Mix_SetPosition}
|
|
|
+
|
|
|
+ {* set the "distance" of a channel.( distance ) is an integer from 0 to 255
|
|
|
+ * that specifies the location of the sound in relation to the listener.
|
|
|
+ * Distance 0 is overlapping the listener, and 255 is as far away as possible
|
|
|
+ * A distance of 255 does not guarantee silence; in such a case , you might
|
|
|
+ * want to try changing the chunk's volume, or just cull the sample from the
|
|
|
+ * mixing process with Mix_HaltChannel( ).
|
|
|
+ * for efficiency, the precision of this effect may be limited( distances 1
|
|
|
+ * through 7 might all produce the same effect, 8 through 15 are equal, etc ).
|
|
|
+ * ( distance ) is an integer between 0 and 255 that specifies the space
|
|
|
+ * between the sound and the listener.The larger the number, the further
|
|
|
+ * away the sound is .
|
|
|
+ * Setting( distance ) to 0 unregisters this effect, since the data would be
|
|
|
+ * unchanged.
|
|
|
+ * if you need more precise positional audio, consider using OpenAL for
|
|
|
+ * spatialized effects instead of SDL_mixer.This is only meant to be a
|
|
|
+ * basic effect for simple "3D" games.
|
|
|
+ *
|
|
|
+ * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
+ * the distance attenuation will be done to the final mixed stream before
|
|
|
+ * passing it on to the audio device.
|
|
|
+ *
|
|
|
+ * This uses the Mix_RegisterEffect( )API internally.
|
|
|
+ *
|
|
|
+ * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
+ * nonzero if position effect is enabled.
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ * }
|
|
|
+ function Mix_SetDistance( channel : integer; distance : Uint8 ) : integer;
|
|
|
+ cdecl; external {$IFDEF __GPC__}name 'Mix_SetDistance'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+ {$EXTERNALSYM Mix_SetDistance}
|
|
|
+ { *
|
|
|
+ * !!! FIXME : Haven't implemented, since the effect goes past the
|
|
|
+ * end of the sound buffer.Will have to think about this.
|
|
|
+ * - -ryan.
|
|
|
+ * /
|
|
|
+ { if 0
|
|
|
+ { * Causes an echo effect to be mixed into a sound.( echo ) is the amount
|
|
|
+ * of echo to mix.0 is no echo, 255 is infinite( and probably not
|
|
|
+ * what you want ).
|
|
|
+ *
|
|
|
+ * Setting( channel ) to MIX_CHANNEL_POST registers this as a posteffect, and
|
|
|
+ * the reverbing will be done to the final mixed stream before passing it on
|
|
|
+ * to the audio device.
|
|
|
+ *
|
|
|
+ * This uses the Mix_RegisterEffect( )API internally.If you specify an echo
|
|
|
+ * of zero, the effect is unregistered, as the data is already in that state.
|
|
|
+ *
|
|
|
+ * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
+ * nonzero if reversing effect is enabled.
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ *
|
|
|
+ extern no_parse_DECLSPEC int Mix_SetReverb( int channel, Uint8 echo );
|
|
|
+ #E ndif}
|
|
|
+ { * Causes a channel to reverse its stereo.This is handy if the user has his
|
|
|
+ * speakers hooked up backwards, or you would like to have a minor bit of
|
|
|
+ * psychedelia in your sound code. : )Calling this function with ( flip )
|
|
|
+ * set to non - zero reverses the chunks's usual channels. If (flip) is zero,
|
|
|
+ * the effect is unregistered.
|
|
|
+ *
|
|
|
+ * This uses the Mix_RegisterEffect( )API internally, and thus is probably
|
|
|
+ * more CPU intensive than having the user just plug in his speakers
|
|
|
+ * correctly.Mix_SetReverseStereo( )returns without registering the effect
|
|
|
+ * function if the audio device is not configured for stereo output.
|
|
|
+ *
|
|
|
+ * if you specify MIX_CHANNEL_POST for ( channel ), then this the effect is used
|
|
|
+ * on the final mixed stream before sending it on to the audio device( a
|
|
|
+ * posteffect ).
|
|
|
+ *
|
|
|
+ * returns zero if error( no such channel or Mix_RegisterEffect( )fails ),
|
|
|
+ * nonzero if reversing effect is enabled.Note that an audio device in mono
|
|
|
+ * mode is a no - op, but this call will return successful in that case .
|
|
|
+ * Error messages can be retrieved from Mix_GetError( ).
|
|
|
+ * }
|
|
|
+ function Mix_SetReverseStereo( channel : integer; flip : integer ) : integer;
|
|
|
+ cdecl; external {$IFDEF __GPC__}name 'Mix_SetReverseStereo'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+ {$EXTERNALSYM Mix_SetReverseStereo}
|
|
|
+ { end of effects API. - -ryan. *}
|
|
|
+
|
|
|
+{ Reserve the first channels (0 -> n-1) for the application, i.e. don't allocate
|
|
|
+ them dynamically to the next sample if requested with a -1 value below.
|
|
|
+ Returns the number of reserved channels.
|
|
|
+ }
|
|
|
+function Mix_ReserveChannels( num : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_ReserveChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_ReserveChannels}
|
|
|
+
|
|
|
+{ Channel grouping functions }
|
|
|
+
|
|
|
+{ Attach a tag to a channel. A tag can be assigned to several mixer
|
|
|
+ channels, to form groups of channels.
|
|
|
+ If 'tag' is -1, the tag is removed (actually -1 is the tag used to
|
|
|
+ represent the group of all the channels).
|
|
|
+ Returns true if everything was OK.
|
|
|
+ }
|
|
|
+function Mix_GroupChannel( which : integer; tag : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupChannel}
|
|
|
+
|
|
|
+{ Assign several consecutive channels to a group }
|
|
|
+function Mix_GroupChannels( from : integer; to_ : integer; tag : integer ) :
|
|
|
+integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupChannels'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupChannels}
|
|
|
+
|
|
|
+{ Finds the first available channel in a group of channels }
|
|
|
+function Mix_GroupAvailable( tag : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupAvailable'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupAvailable}
|
|
|
+
|
|
|
+{ Returns the number of channels in a group. This is also a subtle
|
|
|
+ way to get the total number of channels when 'tag' is -1
|
|
|
+ }
|
|
|
+function Mix_GroupCount( tag : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupCount'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupCount}
|
|
|
+
|
|
|
+{ Finds the "oldest" sample playing in a group of channels }
|
|
|
+function Mix_GroupOldest( tag : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupOldest'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupOldest}
|
|
|
+
|
|
|
+{ Finds the "most recent" (i.e. last) sample playing in a group of channels }
|
|
|
+function Mix_GroupNewer( tag : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GroupNewer'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GroupNewer}
|
|
|
+
|
|
|
+{ The same as above, but the sound is played at most 'ticks' milliseconds }
|
|
|
+function Mix_PlayChannelTimed( channel : integer; chunk : PMix_Chunk; loops : integer; ticks : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_PlayChannelTimed'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_PlayChannelTimed}
|
|
|
+
|
|
|
+{ Play an audio chunk on a specific channel.
|
|
|
+ If the specified channel is -1, play on the first free channel.
|
|
|
+ If 'loops' is greater than zero, loop the sound that many times.
|
|
|
+ If 'loops' is -1, loop inifinitely (~65000 times).
|
|
|
+ Returns which channel was used to play the sound.
|
|
|
+}
|
|
|
+function Mix_PlayChannel( channel : integer; chunk : PMix_Chunk; loops : integer ) : integer;
|
|
|
+
|
|
|
+function Mix_PlayMusic( music : PMix_Music; loops : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_PlayMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_PlayMusic}
|
|
|
+
|
|
|
+{ Fade in music or a channel over "ms" milliseconds, same semantics as the "Play" functions }
|
|
|
+function Mix_FadeInMusic( music : PMix_Music; loops : integer; ms : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FadeInMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_FadeInMusic}
|
|
|
+
|
|
|
+function Mix_FadeInChannelTimed( channel : integer; chunk : PMix_Chunk; loops : integer; ms : integer; ticks : integer ) : integer;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FadeInChannelTimed'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_FadeInChannelTimed}
|
|
|
+
|
|
|
+function Mix_FadeInChannel( channel : integer; chunk : PMix_Chunk; loops : integer; ms : integer ) : integer;
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|
+
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|
+{ Set the volume in the range of 0-128 of a specific channel or chunk.
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|
|
+ If the specified channel is -1, set volume for all channels.
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|
+ Returns the original volume.
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|
|
+ If the specified volume is -1, just return the current volume.
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|
+}
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+function Mix_Volume( channel : integer; volume : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_Volume'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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+{$EXTERNALSYM Mix_Volume}
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+
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+function Mix_VolumeChunk( chunk : PMix_Chunk; volume : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_VolumeChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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+{$EXTERNALSYM Mix_VolumeChunk}
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+
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+function Mix_VolumeMusic( volume : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_VolumeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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+{$EXTERNALSYM Mix_VolumeMusic}
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+
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|
+{ Halt playing of a particular channel }
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|
+function Mix_HaltChannel( channel : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_HaltChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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+{$EXTERNALSYM Mix_HaltChannel}
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+
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+function Mix_HaltGroup( tag : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_HaltGroup'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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+{$EXTERNALSYM Mix_HaltGroup}
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+
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+function Mix_HaltMusic : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_HaltMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_HaltMusic}
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+
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|
+{ Change the expiration delay for a particular channel.
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+ The sample will stop playing after the 'ticks' milliseconds have elapsed,
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|
+ or remove the expiration if 'ticks' is -1
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+}
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+function Mix_ExpireChannel( channel : integer; ticks : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_ExpireChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_ExpireChannel}
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+
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|
+{ Halt a channel, fading it out progressively till it's silent
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|
+ The ms parameter indicates the number of milliseconds the fading
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|
+ will take.
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|
+ }
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+function Mix_FadeOutChannel( which : integer; ms : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_FadeOutChannel}
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|
+function Mix_FadeOutGroup( tag : integer; ms : integer ) : integer;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutGroup'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_FadeOutGroup}
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|
+function Mix_FadeOutMusic( ms : integer ) : integer;
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|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FadeOutMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_FadeOutMusic}
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+
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|
+{ Query the fading status of a channel }
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|
+function Mix_FadingMusic : TMix_Fading;
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+cdecl; external {$IFDEF __GPC__}name 'Mix_FadingMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
+{$EXTERNALSYM Mix_FadingMusic}
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+
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+function Mix_FadingChannel( which : integer ) : TMix_Fading;
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|
+cdecl; external {$IFDEF __GPC__}name 'Mix_FadingChannel'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_FadingChannel}
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+
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|
+{ Pause/Resume a particular channel }
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|
+procedure Mix_Pause( channel : integer );
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|
+cdecl; external {$IFDEF __GPC__}name 'Mix_Pause'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_Pause}
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+
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|
+procedure Mix_Resume( channel : integer );
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|
+cdecl; external {$IFDEF __GPC__}name 'Mix_Resume'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_Resume}
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|
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+
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|
|
+function Mix_Paused( channel : integer ) : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_Paused'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_Paused}
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|
|
+
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|
|
+{ Pause/Resume the music stream }
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|
|
+procedure Mix_PauseMusic;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_PauseMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_PauseMusic}
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|
|
+
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|
|
+procedure Mix_ResumeMusic;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_ResumeMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_ResumeMusic}
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|
|
+
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|
|
+procedure Mix_RewindMusic;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_RewindMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_RewindMusic}
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|
|
+
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|
|
+function Mix_PausedMusic : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_PausedMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_PausedMusic}
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|
|
+
|
|
|
+{ Set the current position in the music stream.
|
|
|
+ This returns 0 if successful, or -1 if it failed or isn't implemented.
|
|
|
+ This function is only implemented for MOD music formats (set pattern
|
|
|
+ order number) and for OGG music (set position in seconds), at the
|
|
|
+ moment.
|
|
|
+}
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|
|
+function Mix_SetMusicPosition( position : double ) : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_SetMusicPosition'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_SetMusicPosition}
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|
|
+
|
|
|
+{ Check the status of a specific channel.
|
|
|
+ If the specified channel is -1, check all channels.
|
|
|
+}
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|
|
+function Mix_Playing( channel : integer ) : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_Playing'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_Playing}
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|
|
+
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|
|
+function Mix_PlayingMusic : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_PlayingMusic'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_PlayingMusic}
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|
|
+
|
|
|
+{ Stop music and set external music playback command }
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|
|
+function Mix_SetMusicCMD( const command : PChar ) : integer;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_SetMusicCMD'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_SetMusicCMD}
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|
|
+
|
|
|
+{ Synchro value is set by MikMod from modules while playing }
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|
|
+function Mix_SetSynchroValue( value : integer ) : integer; overload;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_SetSynchroValue'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_SetSynchroValue}
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|
|
+
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|
|
+function Mix_GetSynchroValue : integer; overload;
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|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GetSynchroValue'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
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|
|
+{$EXTERNALSYM Mix_SetSynchroValue}
|
|
|
+
|
|
|
+{
|
|
|
+ Get the Mix_Chunk currently associated with a mixer channel
|
|
|
+ Returns nil if it's an invalid channel, or there's no chunk associated.
|
|
|
+}
|
|
|
+function Mix_GetChunk( channel : integer ) : PMix_Chunk;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_GetChunk'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_GetChunk}
|
|
|
+
|
|
|
+{ Close the mixer, halting all playing audio }
|
|
|
+procedure Mix_CloseAudio;
|
|
|
+cdecl; external {$IFDEF __GPC__}name 'Mix_CloseAudio'{$ELSE} SDL_MixerLibName{$ENDIF __GPC__};
|
|
|
+{$EXTERNALSYM Mix_CloseAudio}
|
|
|
+
|
|
|
+{ We'll use SDL for reporting errors }
|
|
|
+procedure Mix_SetError( fmt : PChar );
|
|
|
+
|
|
|
+function Mix_GetError : PChar;
|
|
|
+
|
|
|
+{------------------------------------------------------------------------------}
|
|
|
+{ initialization }
|
|
|
+{------------------------------------------------------------------------------}
|
|
|
+
|
|
|
+{------------------------------------------------------------------------------}
|
|
|
+
|
|
|
+implementation
|
|
|
+
|
|
|
+{$IFDEF __GPC__}
|
|
|
+ {$L 'sdl_mixer'} { link sdl_mixer.dll.a or libsdl_mixer.so or libsdl_mixer.a }
|
|
|
+{$ENDIF}
|
|
|
+
|
|
|
+procedure SDL_MIXER_VERSION( var X : TSDL_version );
|
|
|
+begin
|
|
|
+ X.major := SDL_MIXER_MAJOR_VERSION;
|
|
|
+ X.minor := SDL_MIXER_MINOR_VERSION;
|
|
|
+ X.patch := SDL_MIXER_PATCHLEVEL;
|
|
|
+end;
|
|
|
+
|
|
|
+function Mix_LoadWAV( filename : PChar ) : PMix_Chunk;
|
|
|
+begin
|
|
|
+ result := Mix_LoadWAV_RW( SDL_RWFromFile( filename, 'rb' ), 1 );
|
|
|
+end;
|
|
|
+
|
|
|
+function Mix_PlayChannel( channel : integer; chunk : PMix_Chunk; loops : integer ) : integer;
|
|
|
+begin
|
|
|
+ result := Mix_PlayChannelTimed( channel, chunk, loops, -1 );
|
|
|
+end;
|
|
|
+
|
|
|
+function Mix_FadeInChannel( channel : integer; chunk : PMix_Chunk; loops :
|
|
|
+ integer; ms : integer ) : integer;
|
|
|
+begin
|
|
|
+ result := Mix_FadeInChannelTimed( channel, chunk, loops, ms, -1 );
|
|
|
+end;
|
|
|
+
|
|
|
+procedure Mix_SetError( fmt : PChar );
|
|
|
+begin
|
|
|
+ SDL_SetError( fmt );
|
|
|
+end;
|
|
|
+
|
|
|
+function Mix_GetError : PChar;
|
|
|
+begin
|
|
|
+ result := SDL_GetError;
|
|
|
+end;
|
|
|
+
|
|
|
end.
|
peter