vga.h

linux 下svgalib编的一个界面程序示例

	int aperture_size;	/* size of aperture in KB if size>=videomemory. 0 if unavail */
	void (*set_aperture_page) (int page);
	/* if aperture_size<videomemory select a memory page */
	void *extensions;	/* points to copy of eeprom for mach32 */
	/* depends from actual driver/chiptype.. etc. */
    } vga_modeinfo;

    extern vga_modeinfo *vga_getmodeinfo(int mode);
    extern int vga_getdefaultmode(void);
    extern int vga_getcurrentmode(void);
    extern int vga_getcurrentchipset(void);
    extern char *vga_getmodename(int mode);
    extern int vga_getmodenumber(char *name);
    extern int vga_lastmodenumber(void);
    extern int vga_getoptmode(int x, int y, int colors, int bytesperpixel, int c);

    extern unsigned char *graph_mem;
    extern unsigned char *vga_getgraphmem(void);

    extern void vga_setpage(int p);
    extern void vga_setreadpage(int p);
    extern void vga_setwritepage(int p);
    extern void vga_setlogicalwidth(int w);
    extern void vga_setdisplaystart(int a);
    extern void vga_waitretrace(void);
    extern int vga_claimvideomemory(int n);
    extern void vga_disabledriverreport(void);
    extern int vga_setmodeX(void);
    extern int vga_init(void);	/* Used to return void in svgalib <= 1.12. */
    extern int vga_initf(int);
    extern int vga_getmousetype(void);
    extern int vga_getmonitortype(void);
    extern void vga_setmousesupport(int s);
    extern void vga_lockvc(void);
    extern void vga_unlockvc(void);
    extern int vga_getkey(void);
    extern int vga_oktowrite(void);
    extern void vga_copytoplanar256(unsigned char *virtualp, int pitch,
				  int voffset, int vpitch, int w, int h);
    extern void vga_copytoplanar16(unsigned char *virtualp, int pitch,
				   int voffset, int vpitch, int w, int h);
    extern void vga_copytoplane(unsigned char *virtualp, int pitch,
		       int voffset, int vpitch, int w, int h, int plane);
    extern int vga_setlinearaddressing(void);
    extern void vga_safety_fork(void (*shutdown_routine) (void));

    extern int vga_simple_init(void);
    extern void vga_chipset_saveregs(unsigned char *);
    extern void vga_chipset_setregs(unsigned char *);

#ifdef EGA			/* Kernel headers may define this. */
#undef EGA
#endif

#define UNDEFINED	0
#define VGA		1
#define ET4000		2
#define CIRRUS		3
#define TVGA8900	4
#define OAK		5
#define EGA		6
#define S3		7
#define ET3000		8
#define MACH32		9
#define GVGA6400	10
#define ARK		11
#define ATI		12
#define ALI		13
#define MACH64		14
#define CHIPS		15
#define APM             16
#define NV3		17
#define ET6000		18
#define VESA		19
#define MX              20
#define PARADISE	21
#define RAGE		22
#define BANSHEE		23
#define SIS		24
#define I740		25
#define NEOMAGIC	26
#define LAGUNA		27
#define FBDEV		28
#define G400		29
#define R128		30
#define SAVAGE		31

    /* Hor. sync: */
#define MON640_60	0	/* 31.5 KHz (standard VGA) */
#define MON800_56	1	/* 35.1 KHz (old SVGA) */
#define MON1024_43I	2	/* 35.5 KHz (low-end SVGA, 8514) */
#define MON800_60	3	/* 37.9 KHz (SVGA) */
#define MON1024_60	4	/* 48.3 KHz (SVGA non-interlaced) */
#define MON1024_70	5	/* 56.0 KHz (SVGA high frequency) */
#define MON1024_72	6

    extern void vga_setchipset(int c);
    extern void vga_setchipsetandfeatures(int c, int par1, int par2);
    extern void vga_gettextfont(void *font);
    extern void vga_puttextfont(void *font);
    extern void vga_settextmoderegs(void *regs);
    extern void vga_gettextmoderegs(void *regs);

    extern int vga_white(void);
    extern int vga_setegacolor(int c);
    extern int vga_setrgbcolor(int r, int g, int b);

    extern void vga_bitblt(int srcaddr, int destaddr, int w, int h, int pitch);
    extern void vga_imageblt(void *srcaddr, int destaddr, int w, int h, int pitch);
    extern void vga_fillblt(int destaddr, int w, int h, int pitch, int c);
    extern void vga_hlinelistblt(int ymin, int n, int *xmin, int *xmax, int pitch, int c);
    extern void vga_blitwait(void);
    extern int vga_ext_set(unsigned what,...);
    extern int vga_accel(unsigned operation,...);

    extern int vga_setcrtcregs(unsigned char *);
    extern int vga_getcrtcregs(unsigned char *);

    extern int vga_addtiming(int pixelClock,
       			      int HDisplay,		
                              int HSyncStart,
                              int HSyncEnd,
                              int HTotal,
                              int VDisplay,
                              int VSyncStart,
                              int VSyncEnd,
                              int VTotal,
                              int flags);

    extern int vga_changetiming(int pixelClock,
       			      int HDisplay,		
                              int HSyncStart,
                              int HSyncEnd,
                              int HTotal,
                              int VDisplay,
                              int VSyncStart,
                              int VSyncEnd,
                              int VTotal,
                              int flags);

   extern int vga_getcurrenttiming(int *pixelClock,
       			      int *HDisplay,		
                              int *HSyncStart,
                              int *HSyncEnd,
                              int *HTotal,
                              int *VDisplay,
                              int *VSyncStart,
                              int *VSyncEnd,
                              int *VTotal,
                              int *flags);

   extern int vga_addmode(int xdim, int ydim, int cols, 
                          int xbytes, int bytespp);

   extern int vga_guesstiming(int x, int y, int clue, int arg);

/* Valid values for what in vga_ext_set: */
#define VGA_EXT_AVAILABLE	0	/* supported flags */
#define VGA_EXT_SET		1	/* set flag(s) */
#define VGA_EXT_CLEAR		2	/* clear flag(s) */
#define VGA_EXT_RESET		3	/* set/clear flag(s) */
#define VGA_EXT_PAGE_OFFSET	4	/* set an offset for all subsequent vga_set*page() calls */
    /* Like: vga_ext_set(VGA_EXT_PAGE_OFFSET, 42);           */
    /* returns the previous offset value.                    */
#define VGA_EXT_FONT_SIZE	5	/* the (maximal) size of the font buffer */

/* Valid params for VGA_EXT_AVAILABLE: */
#define VGA_AVAIL_SET		0	/* vga_ext_set sub funcs */
#define VGA_AVAIL_ACCEL		1	/* vga_accel sub funcs */
#define VGA_AVAIL_FLAGS		2	/* known flags for VGA_EXT_SET */
#define VGA_AVAIL_ROP		3	/* vga_accel ROP sub funcs */
#define VGA_AVAIL_TRANSPARENCY	4	/* vga_accel TRANSPARENCY sub funcs */
#define VGA_AVAIL_ROPMODES	5	/* vga_accel ROP modes supported funcs */
#define VGA_AVAIL_TRANSMODES	6	/* vga_accel TRANSPARENCY modes supported */

/* Known flags to vga_ext_set() */
#define VGA_CLUT8		1	/* 8 bit DAC entries */

/* Acceleration interface. */

/* Accel operations. */
#define ACCEL_FILLBOX			1	/* Simple solid fill. */
#define ACCEL_SCREENCOPY		2	/* Simple screen-to-screen BLT. */
#define ACCEL_PUTIMAGE			3	/* Straight image transfer. */
#define ACCEL_DRAWLINE			4	/* General line draw. */
#define ACCEL_SETFGCOLOR		5	/* Set foreground color. */
#define ACCEL_SETBGCOLOR		6	/* Set background color. */
#define ACCEL_SETTRANSPARENCY		7	/* Set transparency mode. */
#define ACCEL_SETRASTEROP		8	/* Set raster-operation. */
#define ACCEL_PUTBITMAP			9	/* Color-expand bitmap. */
#define ACCEL_SCREENCOPYBITMAP		10	/* Color-expand from screen. */
#define ACCEL_DRAWHLINELIST		11	/* Draw horizontal spans. */
#define ACCEL_SETMODE			12	/* Set blit strategy. */
#define ACCEL_SYNC			13	/* Wait for blits to finish. */
#define ACCEL_SETOFFSET			14	/* Set screen offset */
#define ACCEL_SCREENCOPYMONO		15	/* Monochrome screen-to-screen BLT. */
#define ACCEL_POLYLINE			16	/* Draw multiple lines. */
#define ACCEL_POLYHLINE			17	/* Draw multiple horizontal spans. */
#define ACCEL_POLYFILLMODE		18	/* Set polygon mode. */

/* Corresponding bitmask. */
#define ACCELFLAG_FILLBOX		0x1	/* Simple solid fill. */
#define ACCELFLAG_SCREENCOPY		0x2	/* Simple screen-to-screen BLT. */
#define ACCELFLAG_PUTIMAGE		0x4	/* Straight image transfer. */
#define ACCELFLAG_DRAWLINE		0x8	/* General line draw. */
#define ACCELFLAG_SETFGCOLOR		0x10	/* Set foreground color. */
#define ACCELFLAG_SETBGCOLOR		0x20	/* Set background color. */
#define ACCELFLAG_SETTRANSPARENCY	0x40	/* Set transparency mode. */
#define ACCELFLAG_SETRASTEROP		0x80	/* Set raster-operation. */
#define ACCELFLAG_PUTBITMAP		0x100	/* Color-expand bitmap. */
#define ACCELFLAG_SCREENCOPYBITMAP	0x200	/* Color-exand from screen. */
#define ACCELFLAG_DRAWHLINELIST		0x400	/* Draw horizontal spans. */
#define ACCELFLAG_SETMODE		0x800	/* Set blit strategy. */
#define ACCELFLAG_SYNC			0x1000	/* Wait for blits to finish. */
#define ACCELFLAG_SETOFFSET		0x2000	/* Set screen offset */
#define ACCELFLAG_SCREENCOPYMONO	0x4000	/* Monochrome screen-to-screen BLT. */
#define ACCELFLAG_POLYLINE		0x8000	/* Draw multiple lines. */
#define ACCELFLAG_POLYHLINE		0x10000	/* Draw multiple horizontal spans. */
#define ACCELFLAG_POLYFILLMODE		0x20000	/* Set polygon mode. */

/* Mode for SetTransparency. */
#define DISABLE_TRANSPARENCY_COLOR	0
#define ENABLE_TRANSPARENCY_COLOR	1
#define DISABLE_BITMAP_TRANSPARENCY	2
#define ENABLE_BITMAP_TRANSPARENCY	3

/* Flags for SetMode (accelerator interface). */
#define BLITS_SYNC			0
#define BLITS_IN_BACKGROUND		0x1

/* Raster ops. */
#define ROP_COPY			0	/* Straight copy. */
#define ROP_OR				1	/* Source OR destination. */
#define ROP_AND				2	/* Source AND destination. */
#define ROP_XOR				3	/* Source XOR destination. */
#define ROP_INVERT			4	/* Invert destination. */

/* For the poly funcs */
#define ACCEL_START			1
#define ACCEL_END			2

/*
 * wait for keypress, mousemove, I/O, timeout. cf. select (3) for details on
 * all parameters execept which.
 * NULL is a valid argument for any of the ptrs.
 */

    extern int vga_waitevent(int which, fd_set * in, fd_set * out, fd_set * except,
			     struct timeval *timeout);

/*
 * valid values for what ( | is valid to combine them )
 */
#define VGA_MOUSEEVENT	1
#define VGA_KEYEVENT	2

/*
 * return value >= has bits set for mouse/keyboard events detected.
 * mouse and raw keyboard events are already handled and their bits removed
 * from *in when vga_waitevent returns.
 * VGA_KEYEVENT relates to vga_getch NOT vga_getkey.
 * return values < 0 signal errors. In this case check errno.
 */

/* Background running */
extern void vga_runinbackground(int stat, ...);
#define VGA_GOTOBACK -1
#define VGA_COMEFROMBACK -2
extern int vga_runinbackground_version(void);

#ifdef __cplusplus
}

#endif
#endif				/* VGA_H */