vga.h

linux 下svgalib编的一个界面程序示例

/* VGAlib version 1.2 - (c) 1993 Tommy Frandsen                    */
/*                                                                 */
/* This library is free software; you can redistribute it and/or   */
/* modify it without any restrictions. This library is distributed */
/* in the hope that it will be useful, but without any warranty.   */

/* Extended for svgalib by Harm Hanemaayer and Hartmut Schirmer */

#ifndef VGA_H
#define VGA_H

#include <sys/types.h>
#include <sys/time.h>

#ifdef __cplusplus
extern "C"
{
#endif

#define TEXT 	     0		/* Compatible with VGAlib v1.2 */
#define G320x200x16  1
#define G640x200x16  2
#define G640x350x16  3
#define G640x480x16  4
#define G320x200x256 5
#define G320x240x256 6
#define G320x400x256 7
#define G360x480x256 8
#define G640x480x2   9

#define G640x480x256 10
#define G800x600x256 11
#define G1024x768x256 12

#define G1280x1024x256 13	/* Additional modes. */

#define G320x200x32K 14
#define G320x200x64K 15
#define G320x200x16M 16
#define G640x480x32K 17
#define G640x480x64K 18
#define G640x480x16M 19
#define G800x600x32K 20
#define G800x600x64K 21
#define G800x600x16M 22
#define G1024x768x32K 23
#define G1024x768x64K 24
#define G1024x768x16M 25
#define G1280x1024x32K 26
#define G1280x1024x64K 27
#define G1280x1024x16M 28

#define G800x600x16 29
#define G1024x768x16 30
#define G1280x1024x16 31

#define G720x348x2 32		/* Hercules emulation mode */

#define G320x200x16M32 33	/* 32-bit per pixel modes. */
#define G640x480x16M32 34
#define G800x600x16M32 35
#define G1024x768x16M32 36
#define G1280x1024x16M32 37

/* additional resolutions */
#define G1152x864x16 38
#define G1152x864x256 39
#define G1152x864x32K 40
#define G1152x864x64K 41
#define G1152x864x16M 42
#define G1152x864x16M32 43

#define G1600x1200x16 44
#define G1600x1200x256 45
#define G1600x1200x32K 46
#define G1600x1200x64K 47
#define G1600x1200x16M 48
#define G1600x1200x16M32 49

#define G320x240x256V 50
#define G320x240x32K 51
#define G320x240x64K 52
#define G320x240x16M 53
#define G320x240x16M32 54

#define G400x300x256 55
#define G400x300x32K 56
#define G400x300x64K 57
#define G400x300x16M 58
#define G400x300x16M32 59

#define G512x384x256 60
#define G512x384x32K 61
#define G512x384x64K 62
#define G512x384x16M 63
#define G512x384x16M32 64

#define G960x720x256 65
#define G960x720x32K 66
#define G960x720x64K 67
#define G960x720x16M 68
#define G960x720x16M32 69

#define G1920x1440x256 70
#define G1920x1440x32K 71
#define G1920x1440x64K 72
#define G1920x1440x16M 73
#define G1920x1440x16M32 74

/* The following modes have been introduced by SciTech Display Doctor */

#define G320x400x256V 75
#define G320x400x32K 76
#define G320x400x64K 77
#define G320x400x16M 78
#define G320x400x16M32 79

#define G640x400x256 80
#define G640x400x32K 81
#define G640x400x64K 82
#define G640x400x16M 83
#define G640x400x16M32 84

#define G320x480x256 85
#define G320x480x32K 86
#define G320x480x64K 87
#define G320x480x16M 88
#define G320x480x16M32 89

#define G720x540x256 90
#define G720x540x32K 91
#define G720x540x64K 92
#define G720x540x16M 93
#define G720x540x16M32 94

#define G848x480x256 95
#define G848x480x32K 96
#define G848x480x64K 97
#define G848x480x16M 98
#define G848x480x16M32 99

#define G1072x600x256 100
#define G1072x600x32K 101
#define G1072x600x64K 102
#define G1072x600x16M 103
#define G1072x600x16M32 104

#define G1280x720x256 105
#define G1280x720x32K 106
#define G1280x720x64K 107
#define G1280x720x16M 108
#define G1280x720x16M32 109

#define G1360x768x256 110
#define G1360x768x32K 111
#define G1360x768x64K 112
#define G1360x768x16M 113
#define G1360x768x16M32 114

#define G1800x1012x256 115
#define G1800x1012x32K 116
#define G1800x1012x64K 117
#define G1800x1012x16M 118
#define G1800x1012x16M32 119

#define G1920x1080x256 120
#define G1920x1080x32K 121
#define G1920x1080x64K 122
#define G1920x1080x16M 123
#define G1920x1080x16M32 124

#define G2048x1152x256 125
#define G2048x1152x32K 126
#define G2048x1152x64K 127
#define G2048x1152x16M 128
#define G2048x1152x16M32 129

#define G2048x1536x256 130
#define G2048x1536x32K 131
#define G2048x1536x64K 132
#define G2048x1536x16M 133
#define G2048x1536x16M32 134

#define G512x480x256 135
#define G512x480x32K 136
#define G512x480x64K 137
#define G512x480x16M 138
#define G512x480x16M32 139

#define G400x600x256 140
#define G400x600x32K 141
#define G400x600x64K 142
#define G400x600x16M 143
#define G400x600x16M32 144

#define __GLASTMODE G400x600x16M32
#define GLASTMODE vga_lastmodenumber()

    extern int vga_version;

    extern int vga_setmode(int mode);
    extern int vga_hasmode(int mode);
    extern int vga_setflipchar(int c);

    extern int vga_clear(void);
    extern int vga_flip(void);

    extern int vga_getxdim(void);
    extern int vga_getydim(void);
    extern int vga_getcolors(void);

    extern int vga_setpalette(int index, int red, int green, int blue);
    extern int vga_getpalette(int index, int *red, int *green, int *blue);
    extern int vga_setpalvec(int start, int num, int *pal);
    extern int vga_getpalvec(int start, int num, int *pal);

    extern int vga_screenoff(void);
    extern int vga_screenon(void);

    extern int vga_setcolor(int color);
    extern int vga_drawpixel(int x, int y);
    extern int vga_drawline(int x1, int y1, int x2, int y2);
    extern int vga_drawscanline(int line, unsigned char *colors);
    extern int vga_drawscansegment(unsigned char *colors, int x, int y, int length);
    extern int vga_getpixel(int x, int y);	/* Added. */
    extern int vga_getscansegment(unsigned char *colors, int x, int y, int length);

    extern int vga_getch(void);

    extern int vga_dumpregs(void);


/* Extensions to VGAlib v1.2: */

/* blit flags */
#define HAVE_BITBLIT 1
#define HAVE_FILLBLIT 2
#define HAVE_IMAGEBLIT 4
#define HAVE_HLINELISTBLIT 8
#define HAVE_BLITWAIT 16

/* other flags */
#define HAVE_RWPAGE 1		/* vga_setreadpage() / vga_setwritepage() available */
#define IS_INTERLACED 2		/* mode is interlaced */
#define IS_MODEX 4		/* ModeX style 256 colors */
#define IS_DYNAMICMODE 8	/* Dynamic defined mode */
#define CAPABLE_LINEAR 16	/* Can go to linear addressing mode. */
#define IS_LINEAR 32		/* Linear addressing enabled. */
#define EXT_INFO_AVAILABLE 64	/* Returned modeinfo contains valid extended fields */
#define RGB_MISORDERED 128	/* Mach32 32bpp uses 0BGR instead of BGR0. */
    /* As of this version 1.25 also used to signal if real RGB
       (red first in memory) is used instead of BGR (Mach32 DAC 4) */
#define HAVE_EXT_SET 256	/* vga_ext_set() available */

#define IS_IN_STANDARD_VGA_DRIVER(mode) ( \
        ((mode) < G640x480x256) || ((mode) == G720x348x2) )

    typedef struct {
	int width;
	int height;
	int bytesperpixel;
	int colors;
	int linewidth;		/* scanline width in bytes */
	int maxlogicalwidth;	/* maximum logical scanline width */
	int startaddressrange;	/* changeable bits set */
	int maxpixels;		/* video memory / bytesperpixel */
	int haveblit;		/* mask of blit functions available */
	int flags;		/* other flags */

	/* Extended fields: */

	int chiptype;		/* Chiptype detected */
	int memory;		/* videomemory in KB */
	int linewidth_unit;	/* Use only a multiple of this as parameter for set_logicalwidth and
				   set_displaystart */
	char *linear_aperture;	/* points to mmap secondary mem aperture of card (NULL if unavailable) */