fb.h

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/*
 * Framebuffer drivers header file for MiniGUI Screen Drivers
 */

/* Linux framebuffer critical sections*/
#if VTSWITCH
extern volatile int drawing;
#define DRAWON		++drawing
#define DRAWOFF		--drawing
#else
#define DRAWON
#define DRAWOFF
#endif


/* subdriver entry points: one required for each draw function*/
typedef struct {
	int	 (*Init)(PSD psd);
	void 	 (*DrawPixel)(PSD psd, int x, int y, gal_pixel c);
	gal_pixel (*ReadPixel)(PSD psd, int x, int y);

	void	(*DrawHLine)(PSD psd, int x, int y, int w, gal_pixel c);
	void	(*PutHLine) (PSD psd, int x, int y, int w, void* buf);
	void	(*GetHLine) (PSD psd, int x, int y, int w, void* buf);
	void	(*DrawVLine)(PSD psd, int x, int y, int w, gal_pixel c);
	void	(*PutVLine) (PSD psd, int x, int y, int w, void* buf);
	void	(*GetVLine) (PSD psd, int x, int y, int w, void* buf);
	void 	(*Blit)(PSD dstpsd, int dstx, int dsty, int w, int h, PSD srcpsd, int srcx, int srcy);
	void	(*PutBox)( PSD psd, int x, int y, int w, int h, void* buf );
	void	(*GetBox)( PSD psd, int x, int y, int w, int h, void* buf );
	void	(*PutBoxMask)( PSD psd, int x, int y, int w, int h, void *buf);
	void 	(*CopyBox)(PSD psd,int x1, int y1, int w, int h, int x2, int y2);

} SUBDRIVER, *PSUBDRIVER;

/* scr_fb.c*/
void ioctl_getpalette(int start, int len, short *red, short *green,short *blue);
void ioctl_setpalette(int start, int len, short *red, short *green,short *blue);

/* fb.c*/
PSUBDRIVER select_fb_subdriver(PSD psd);
int fb_mapmemgc(PSD mempsd,int w,int h,int planes,int bpp, int linelen,int size,void *addr);
int set_subdriver(PSD psd, PSUBDRIVER subdriver, int init);
void get_subdriver(PSD psd, PSUBDRIVER subdriver);