yaglitch/sdl.asm

EXTERN SDL_Init
Extern SDL_Quit
Extern SDL_Delay
Extern SDL_OpenAudio
Extern SDL_PauseAudio
Extern SDL_WaitEvent
Extern SDL_GetError
Extern SDL_CreateRGBSurface
Extern SDL_LockSurface
Extern SDL_UnlockSurface
Extern SDL_UpperBlit
%define SDL_BlitSurface SDL_UpperBlit

%ifdef SDL1
	%define SDL_QUIT 0x0C
	%define SDL_DOUBLEBUF 0x40000000
	%define SDL_HWSURFACE 0x1
	Extern SDL_GetVideoSurface
	Extern SDL_SetVideoMode
	Extern SDL_Flip
%endif
%ifdef SDL2
	; events
	%define SDL_QUIT 0x100
	%define SDL_AUDIODEVICEADDED 0x1100
	; values
	%define SDL_WINDOWPOS_UNDEFINED_MASK 0x1FFF0000
	%define SDL_WINDOWPOS_UNDEFINED SDL_WINDOWPOS_UNDEFINED_MASK | 0 ; display 0
	; function
	Extern SDL_CreateWindow

	extern SDL_GetWindowSurface
	extern SDL_memset
	extern SDL_UpdateWindowSurface
%endif
%ifdef MIX_AUDIO
	Extern SDL_MixAudio
	%define SDL_MAX_VOLUME 128
%endif

%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

%macro MOV_surf_w 2
	mov %1, [%2]
	mov %1, [%1 + 16]
%endmacro
%macro MOV_surf_h 2
	mov %1, [%2]
	mov %1, [%1 + 20]
%endmacro
%macro MOV_surf_pitch 2
	mov %1, [%2]
	mov %1, [%1 + 24]
%endmacro
%macro MOV_surf_pixels 2
mov %1, [%2]
mov %1, [%1 + 32]
%endmacro