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