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ID_VL.H
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ID_VL.H
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// ID_VL.H
// wolf compatability
#define MS_Quit Quit
void Quit (char *error);
//===========================================================================
#define SC_INDEX 0x3C4
#define SC_RESET 0
#define SC_CLOCK 1
#define SC_MAPMASK 2
#define SC_CHARMAP 3
#define SC_MEMMODE 4
#define CRTC_INDEX 0x3D4
#define CRTC_H_TOTAL 0
#define CRTC_H_DISPEND 1
#define CRTC_H_BLANK 2
#define CRTC_H_ENDBLANK 3
#define CRTC_H_RETRACE 4
#define CRTC_H_ENDRETRACE 5
#define CRTC_V_TOTAL 6
#define CRTC_OVERFLOW 7
#define CRTC_ROWSCAN 8
#define CRTC_MAXSCANLINE 9
#define CRTC_CURSORSTART 10
#define CRTC_CURSOREND 11
#define CRTC_STARTHIGH 12
#define CRTC_STARTLOW 13
#define CRTC_CURSORHIGH 14
#define CRTC_CURSORLOW 15
#define CRTC_V_RETRACE 16
#define CRTC_V_ENDRETRACE 17
#define CRTC_V_DISPEND 18
#define CRTC_OFFSET 19
#define CRTC_UNDERLINE 20
#define CRTC_V_BLANK 21
#define CRTC_V_ENDBLANK 22
#define CRTC_MODE 23
#define CRTC_LINECOMPARE 24
#define GC_INDEX 0x3CE
#define GC_SETRESET 0
#define GC_ENABLESETRESET 1
#define GC_COLORCOMPARE 2
#define GC_DATAROTATE 3
#define GC_READMAP 4
#define GC_MODE 5
#define GC_MISCELLANEOUS 6
#define GC_COLORDONTCARE 7
#define GC_BITMASK 8
#define ATR_INDEX 0x3c0
#define ATR_MODE 16
#define ATR_OVERSCAN 17
#define ATR_COLORPLANEENABLE 18
#define ATR_PELPAN 19
#define ATR_COLORSELECT 20
#define STATUS_REGISTER_1 0x3da
#define PEL_WRITE_ADR 0x3c8
#define PEL_READ_ADR 0x3c7
#define PEL_DATA 0x3c9
//===========================================================================
#define SCREENSEG 0xa000
#define SCREENWIDTH 80 // default screen width in bytes
#define MAXSCANLINES 200 // size of ylookup table
#define CHARWIDTH 2
#define TILEWIDTH 4
//===========================================================================
extern unsigned bufferofs; // all drawing is reletive to this
extern unsigned displayofs,pelpan; // last setscreen coordinates
extern unsigned screenseg; // set to 0xa000 for asm convenience
extern unsigned linewidth;
extern unsigned ylookup[MAXSCANLINES];
extern boolean screenfaded;
extern unsigned bordercolor;
//===========================================================================
//
// VGA hardware routines
//
#define VGAWRITEMODE(x) asm{\
cli;\
mov dx,GC_INDEX;\
mov al,GC_MODE;\
out dx,al;\
inc dx;\
in al,dx;\
and al,252;\
or al,x;\
out dx,al;\
sti;}
#define VGAMAPMASK(x) asm{cli;mov dx,SC_INDEX;mov al,SC_MAPMASK;mov ah,x;out dx,ax;sti;}
#define VGAREADMAP(x) asm{cli;mov dx,GC_INDEX;mov al,GC_READMAP;mov ah,x;out dx,ax;sti;}
void VL_Startup (void);
void VL_Shutdown (void);
void VL_SetVGAPlane (void);
void VL_SetTextMode (void);
void VL_DePlaneVGA (void);
void VL_SetVGAPlaneMode (void);
void VL_ClearVideo (byte color);
void VL_SetLineWidth (unsigned width);
void VL_SetSplitScreen (int linenum);
void VL_WaitVBL (int vbls);
void VL_CrtcStart (int crtc);
void VL_SetScreen (int crtc, int pelpan);
void VL_FillPalette (int red, int green, int blue);
void VL_SetColor (int color, int red, int green, int blue);
void VL_GetColor (int color, int *red, int *green, int *blue);
void VL_SetPalette (byte far *palette);
void VL_GetPalette (byte far *palette);
void VL_FadeOut (int start, int end, int red, int green, int blue, int steps);
void VL_FadeIn (int start, int end, byte far *palette, int steps);
void VL_ColorBorder (int color);
void VL_Plot (int x, int y, int color);
void VL_Hlin (unsigned x, unsigned y, unsigned width, unsigned color);
void VL_Vlin (int x, int y, int height, int color);
void VL_Bar (int x, int y, int width, int height, int color);
void VL_MungePic (byte far *source, unsigned width, unsigned height);
void VL_DrawPicBare (int x, int y, byte far *pic, int width, int height);
void VL_MemToLatch (byte far *source, int width, int height, unsigned dest);
void VL_ScreenToScreen (unsigned source, unsigned dest,int width, int height);
void VL_MemToScreen (byte far *source, int width, int height, int x, int y);
void VL_MaskedToScreen (byte far *source, int width, int height, int x, int y);
void VL_DrawTile8String (char *str, char far *tile8ptr, int printx, int printy);
void VL_DrawLatch8String (char *str, unsigned tile8ptr, int printx, int printy);
void VL_SizeTile8String (char *str, int *width, int *height);
void VL_DrawPropString (char *str, unsigned tile8ptr, int printx, int printy);
void VL_SizePropString (char *str, int *width, int *height, char far *font);
void VL_TestPaletteSet (void);