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/* 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>
#include <drivers/grxsvga/glib.h>
#include <kernel/log.h>

#ifdef __cplusplus
extern "C"
{
#endif

#define rgb15(r, g, b) ((((WORD)(r & 0xF8)>>3) << 10) | (((WORD)(g & 0xF8)>>3) << 5) | ((WORD)(b & 0xF8)>>3))
#define rgb16(r, g, b) ((((WORD)(r & 0xF8)>>3) << 11) | (((WORD)(g & 0xFC)>>2) << 5) | ((WORD)(b & 0xF8)>>3))
#define rgb24(r, g, b) (((DWORD)(r & 0xFF) << 16) | ((DWORD)(g & 0xFF) << 8) | (DWORD)(b & 0xFF))
#define rgb32(r, g, b) (((DWORD)(r & 0xFF) << 16) | ((DWORD)(g & 0xFF) << 8) | (DWORD)(b & 0xFF))
#define rgba(r, g, b) (((DWORD)(b & 0xFF) << 16) | ((DWORD)(g & 0xFF) << 8) | (DWORD)(r & 0xFF))
       
#define SVGALIB_VER 0x010900

#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 G400x300x256X 145

#define G320x200x256V 146

#define __GLASTMODE G320x200x256V
#define GLASTMODE vga_lastmodenumber()

#define IS_IN_STANDARD_VGA_DRIVER(mode) ( \
        ((mode) < G640x480x256) || ((mode) == G720x348x2) || \
        ( ((mode) >= G400x300x256X) && ((mode) <= G400x300x256X) ) )


    extern int vga_version;
    extern int __svgalib_chipset;

    extern int vga_setmode(int mode, int set_chipset);
    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 can be used. */
#define LINEAR_MODE 512         /* Linear mode is 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 */

    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) */
        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;

    typedef struct {
        int version;
        int size;
        int chipset;
        int physmem;
    } vga_cardinfo;

    extern vga_cardinfo *vga_getcardinfo(void);
    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
#define MILLENNIUM      32
#define I810            33
#define TRIDENT         34
#define RENDITION       35
#define G450C2          36
#define PM2             37
   
    /* 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_initcursor(int);
    extern void vga_showcursor(int);
    extern void vga_setcursorposition(int, int);
    extern void vga_selectcursor(int);
    extern void vga_setcursorimage(int, int, int, int, unsigned char *);

    inline void copy_videomem_32to16(void *src, void *dst, unsigned long int memdiv2);
    inline void copy_videomem_16to16(void *src, void *dst, unsigned long int memdiv4);

    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);

   extern void vga_dpms(int mode);

/* 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, //SHARK
//                           struct timeval *timeout);  //SHARK

/*
 * 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 */