EXTERN SDL_Init
Extern SDL_Quit
Extern SDL_SetVideoMode
Extern SDL_Delay
Extern SDL_OpenAudio
Extern SDL_PauseAudio



%define SDL_SWSURFACE 0

%define AUDIO_U8        0x0008  ; Unsigned 8-bit samples 
%define AUDIO_S8        0x8008  ; Signed 8-bit samples 
%define AUDIO_U16LSB    0x0010  ; Unsigned 16-bit samples 
%define AUDIO_S16LSB    0x8010  ; Signed 16-bit samples 
%define AUDIO_U16MSB    0x1010  ; As above, but big-endian byte order 
%define AUDIO_S16MSB    0x9010  ; As above, but big-endian byte order 
%define AUDIO_U16       AUDIO_U16LSB
%define AUDIO_S16       AUDIO_S16LSB

STRUC SDL_AudioSpec_STRUC
	.freq: resw 1
	.format: resw 1
	.channels: resb 1
	.silence: resb 1
	.samples: resw 1
	.size: resw 1
	.callback: resq 1
	.userdata: resq 1
ENDSTRUC
%macro def_SDL_AudioSpec 1
	%define %1.freq %1+SDL_AudioSpec_STRUC.freq
	%define %1.format %1+SDL_AudioSpec_STRUC.format
	%define %1.channels %1+SDL_AudioSpec_STRUC.channels
	%define %1.silence %1+SDL_AudioSpec_STRUC.silence
	%define %1.samples %1+SDL_AudioSpec_STRUC.samples
	%define %1.size %1+SDL_AudioSpec_STRUC.size
	%define %1.callback %1+SDL_AudioSpec_STRUC.callback
	%define %1.userdata %1+SDL_AudioSpec_STRUC.userdata
	%1:
		ISTRUC SDL_AudioSpec_STRUC
%endmacro