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Oberon/ETH Oberon/2.3.7/S3C924.Display.Mod
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
(* ETH Oberon, Copyright 1990-2003 Computer Systems Institute, ETH Zurich, CH-8092 Zurich.
Refer to the license.txt file provided with this distribution. *)
MODULE Display; (* 86C924 ard, pjm *)
IMPORT SYSTEM, Objects, Kernel;
CONST
BG* = 0; FG* = 15; (*background, foreground*)
replace* = 0; paint* = 1; invert* = 2; (*operation modes*)
remove* = 0; suspend* = 1; restore* = 2; newprinter* = 3; (*ControlMsg id*)
reduce* = 0; extend* = 1; move* = 2; (*ModifyMsg id*)
display* = 0; state* = 1; (*ModifyMsg mode*)
screen* = 0; printer* = 1; (* DisplayMsg device *)
full* = 0; area* = 1; contents* = 2; (* DisplayMsg id. *)
get* = 0; set* = 1; reset* = 2; (*SelectMsg id*)
drop* = 0; integrate* = 1; (*ConsumeMsg id*)
unknown* = 0; index8* = 8; color555* = 16; color565* = 17; color664* = 18; color888* = 24; color8888* = 32;
(* S3 Constants *)
index = 3D4H;
data = 3D5H;
Xpos = 20H;
Ypos = 80H;
Ymajor = 40H;
advFnCtrl = 4AE8H;
curX = 86E8H;
curY = 82E8H;
axStep = 8AE8H;
diaStep = 8EE8H;
errTerm = 92E8H;
majAxis = 96E8H;
minAxis = 0BEE8H;
gpStat = 9AE8H;
cmdReg = 9AE8H;
shortStroke = 9EE8H;
BGcol = 0A2E8H;
FGcol = 0A6E8H;
wrtMask = 0AAE8H;
rdMask = 0AEE8H;
BGmix = 0B6E8H;
FGmix = 0BAE8H;
MFcont = 0BEE8H;
pixTrans = 0E2E8H;
TYPE Color* = LONGINT;
Pattern* = LONGINT;
PatternPtr = POINTER TO RECORD
w, h: CHAR;
pixmap: ARRAY 8192 OF CHAR
END;
List = POINTER TO ListDesc;
ListDesc = RECORD
next: List;
pat: PatternPtr
END;
Frame* = POINTER TO FrameDesc;
FrameDesc* = RECORD (Objects.ObjDesc)
next*, dsc*: Frame;
X*, Y*, W*, H*: INTEGER
END;
FrameMsg* = RECORD (Objects.ObjMsg)
F*: Frame; (*target*)
x*, y*, res*: INTEGER
END;
ControlMsg* = RECORD (FrameMsg)
id*: INTEGER
END;
ModifyMsg* = RECORD (FrameMsg)
id*, mode*: INTEGER;
dX*, dY*, dW*, dH*: INTEGER;
X*, Y*, W*, H*: INTEGER
END;
DisplayMsg* = RECORD (FrameMsg)
device*: INTEGER;
id*: INTEGER;
u*, v*, w*, h*: INTEGER
END;
LocateMsg* = RECORD (FrameMsg)
loc*: Frame;
X*, Y*, u*, v*: INTEGER
END;
SelectMsg* = RECORD (FrameMsg)
id*: INTEGER;
time*: LONGINT;
sel*: Frame;
obj*: Objects.Object
END;
ConsumeMsg* = RECORD (FrameMsg)
id*: INTEGER;
u*, v*: INTEGER;
obj*: Objects.Object
END;
MsgProc* = PROCEDURE (VAR M: FrameMsg);
VAR
Unit*: LONGINT; (* RasterUnit = Unit/36000 mm *)
Left*, (* left margin of black-and-white maps *)
ColLeft*, (* left margin of color maps *)
Bottom*, (* bottom of primary map *)
UBottom*, (* bottom of secondary map *)
Width*, (* map width *)
Height*: (* map hight*)
INTEGER;
arrow*, star*, cross*, downArrow*, hook*,
grey0*, grey1*, grey2*, ticks*, solid*: Pattern;
Broadcast*: MsgProc;
dmem, lasty: LONGINT;
Pat: List;
clipx, clipy, clipright, cliptop, height, width: INTEGER; (* clipping variables *)
pixctrl1, pixctrl2, copycmd: LONGINT;
mask: INTEGER;
depth: INTEGER;
palette: ARRAY 256 OF LONGINT;
PROCEDURE WaitFIFO1;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab1:
IN AX, DX
AND AX, 0FFH-127
JNZ lab1
END WaitFIFO1;
PROCEDURE WaitFIFO2;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab2:
IN AX, DX
AND AX, 0FFH-63
JNZ lab2
END WaitFIFO2;
PROCEDURE WaitFIFO3;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab3:
IN AX, DX
AND AX, 0FFH-31
JNZ lab3
END WaitFIFO3;
PROCEDURE WaitFIFO4;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab4:
IN AX, DX
AND AX, 0FFH-15
JNZ lab4
END WaitFIFO4;
PROCEDURE WaitFIFO5;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab5:
IN AX, DX
AND AX, 0FFH-7
JNZ lab5
END WaitFIFO5;
PROCEDURE WaitFIFO6;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab6:
IN AX, DX
AND AX, 0FFH-3
JNZ lab6
END WaitFIFO6;
PROCEDURE WaitFIFO7;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab7:
IN AX, DX
AND AX, 0FFH-1
JNZ lab7
END WaitFIFO7;
PROCEDURE WaitFIFO8;
CODE {SYSTEM.i386}
MOV DX, 09AE8H
lab8:
IN AX, DX
AND AX, 0FFH
JNZ lab8
END WaitFIFO8;
PROCEDURE EnableRegs;
VAR i: INTEGER;
BEGIN
WaitFIFO2;
SYSTEM.PORTOUT(wrtMask, mask); ; (* Write mask *)
SYSTEM.PORTOUT(rdMask, mask); ; (* Read mask *)
END EnableRegs;
PROCEDURE max (i, j: INTEGER): INTEGER; BEGIN IF i >= j THEN RETURN i ELSE RETURN j END END max;
PROCEDURE min (i, j: INTEGER): INTEGER; BEGIN IF i >= j THEN RETURN j ELSE RETURN i END END min;
PROCEDURE Map*(x: LONGINT): LONGINT;
BEGIN RETURN 0A0000H (* Start of the video RAM *)
END Map;
PROCEDURE AdjustClip*(x, y, w, h: LONGINT);
VAR right, top, left, bottom: INTEGER;
BEGIN
right := SHORT(x + w); top := SHORT(y + h);
clipx := max(clipx, SHORT(x)); clipy := max(clipy, SHORT(y));
clipright := min(right, clipright); cliptop := min(top, cliptop);
top := height-1-cliptop; left := clipx; bottom := height-1-clipy; right := clipright-1;
IF top < 0 THEN top := 0 ELSIF top > height-1 THEN top := height-1 END;
IF left < 0 THEN left := 0 ELSIF left > width THEN left := width END;
IF bottom < 0 THEN bottom := 0 ELSIF bottom > height-1 THEN bottom := height-1 END;
IF right < 0 THEN right := 0 ELSIF right > width THEN right := width END;
WaitFIFO4;
SYSTEM.PORTOUT(MFcont, 1000H + top); (* top *)
SYSTEM.PORTOUT(MFcont, 2000H + left); (* left *)
SYSTEM.PORTOUT(MFcont, 3000H + bottom); (* bottom *)
SYSTEM.PORTOUT(MFcont, 4000H + right); (* right *)
END AdjustClip;
PROCEDURE GetDim*(pat: Pattern; VAR w, h: INTEGER);
VAR s: CHAR;
BEGIN SYSTEM.GET(pat, s); w := ORD(s); SYSTEM.GET(pat+1, s); h := ORD(s);
END GetDim;
PROCEDURE ResetClip*;
BEGIN
clipx := 0; clipy := UBottom;
clipright := width;
cliptop := height-1;
WaitFIFO4;
SYSTEM.PORTOUT(MFcont, 1000H); (* top *)
SYSTEM.PORTOUT(MFcont, 2000H); (* left *)
SYSTEM.PORTOUT(MFcont, 3000H + height-1-UBottom); (* bottom *)
SYSTEM.PORTOUT(MFcont, 4000H + width-1); (* right *)
END ResetClip;
PROCEDURE SetClip*(x, y, w, h: LONGINT);
VAR right, top, left, bottom: INTEGER;
BEGIN
clipright := SHORT(x+w);
cliptop := SHORT(y+h);
clipy := SHORT(y); clipx := SHORT(x);
top := height-1-cliptop; left := clipx; bottom := height-1-clipy; right := clipright-1;
WaitFIFO4;
SYSTEM.PORTOUT(MFcont, 1000H + top); (* top *)
SYSTEM.PORTOUT(MFcont, 2000H + left); (* left *)
SYSTEM.PORTOUT(MFcont, 3000H + bottom); (* bottom *)
SYSTEM.PORTOUT(MFcont, 4000H + right); (* right *)
END SetClip;
PROCEDURE GetClip*(VAR x, y, w, h: INTEGER);
BEGIN
x := clipx; y := clipy; w := clipright - clipx; h := cliptop - clipy
END GetClip;
PROCEDURE SetColor*(col: Color; red, green, blue: LONGINT); (* 0 <= col, red, green, blue < 256 *)
VAR ch: CHAR;
BEGIN
palette[col] := ASH(ASH(red, 8) + green, 8) + blue;
IF (col = 0) OR (col = 15) THEN (* either 0 or 15 must be black. set the border to black. *)
(* note: the S3 uses the palette for the border colour too *)
SYSTEM.PORTIN(3DAH, ch);
SYSTEM.PORTOUT(3C0H, 11X);
IF (red = 0) & (green = 0) & (blue = 0) THEN SYSTEM.PORTOUT(3C0H, CHR(col))
ELSE SYSTEM.PORTOUT(3C0H, CHR(15-col))
END;
SYSTEM.PORTOUT(3C0H, 20X)
END;
red := (red + 4) DIV 4 -1;
green := (green + 4) DIV 4 -1;
blue := (blue + 4) DIV 4 -1;
SYSTEM.PORTOUT(3C8H, CHR(col));
SYSTEM.PORTOUT(3C9H, CHR(red));
SYSTEM.PORTOUT(3C9H, CHR(green));
SYSTEM.PORTOUT(3C9H, CHR(blue))
END SetColor;
PROCEDURE GetColor*(col: Color; VAR red, green, blue: INTEGER);
BEGIN
IF col >= 0 THEN col := palette[col] END;
red := SHORT(ASH(col, -16) MOD 256);
green := SHORT(ASH(col, -8) MOD 256);
blue := SHORT(col MOD 256)
END GetColor;
PROCEDURE RGB*(red, green, blue: LONGINT): Color;
BEGIN
RETURN MIN(LONGINT) + ASH(red, 16) + ASH(green, 8) + blue
END RGB;
PROCEDURE Dot*(col: Color; x, y, mode: LONGINT);
BEGIN
y := Height-1-y;
WaitFIFO7;
IF mode = invert THEN SYSTEM.PORTOUT(FGmix, LONG(25H)) ELSE SYSTEM.PORTOUT(FGmix, LONG(27H)) END;
SYSTEM.PORTOUT(FGcol, SHORT(col));
SYSTEM.PORTOUT(MFcont, SHORT(pixctrl1));
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 121BH);
SYSTEM.PORTOUT(shortStroke, LONG(10H));
END Dot;
PROCEDURE CopyBlock*(sx, sy, w, h, dx, dy, mode: LONGINT);
VAR xpos, ypos: INTEGER;
BEGIN
IF (w > 0) & (h > 0) THEN
xpos := 0; ypos := 0;
IF sy < dy THEN INC(sy, h-1); INC(dy, h-1); ypos := 128 END;
IF sx < dx THEN INC(sx, w-1); INC(dx, w-1) ELSE xpos := 32 END;
sy := Height - 1- sy; dy := Height -1- dy;
DEC(w); DEC(h);
WaitFIFO1;
IF mode = invert THEN SYSTEM.PORTOUT(FGmix, LONG(65H)) ELSE SYSTEM.PORTOUT(FGmix, LONG(67H)) END;
WaitFIFO8;
SYSTEM.PORTOUT(MFcont, SHORT(pixctrl1));
SYSTEM.PORTOUT(curX, SHORT(sx));
SYSTEM.PORTOUT(curY, SHORT(sy));
SYSTEM.PORTOUT(diaStep, SHORT(dx));
SYSTEM.PORTOUT(axStep, SHORT(dy));
SYSTEM.PORTOUT(majAxis, SHORT(w));
SYSTEM.PORTOUT(MFcont, SHORT(h));
SYSTEM.PORTOUT(cmdReg, SHORT(copycmd) + xpos + ypos)
END
END CopyBlock;
PROCEDURE SetMode*(x: LONGINT; s: SET);
BEGIN
END SetMode;
PROCEDURE CopyPattern*(col: Color; pat: Pattern; x, y, mode: LONGINT);
VAR width, height: SHORTINT;
diastep, axstep, errterm, bit16: INTEGER;
bit8: CHAR; bit24, bit32: SET;
BEGIN
SYSTEM.GET(pat, width);
SYSTEM.GET(pat+1, height);
INC(pat, 2);
width := (width+7) DIV 8 * 8;
axstep := 0;
diastep := -2*width;
errterm := -width-1;
INC(x, LONG(LONG(width-1)));
y := Height-1-y;
WaitFIFO8;
IF mode = invert THEN SYSTEM.PORTOUT(FGmix, LONG(25H)); SYSTEM.PORTOUT(BGmix, LONG(3H))
ELSIF mode = paint THEN SYSTEM.PORTOUT(FGmix, LONG(27H)); SYSTEM.PORTOUT(BGmix, LONG(3H))
ELSE SYSTEM.PORTOUT(FGmix, LONG(27H)); SYSTEM.PORTOUT(BGmix, LONG(1H)) END;
SYSTEM.PORTOUT(FGcol, SHORT(col));
SYSTEM.PORTOUT(MFcont, SHORT(pixctrl2));
SYSTEM.PORTOUT(majAxis, LONG(width)-1);
SYSTEM.PORTOUT(diaStep, diastep);
SYSTEM.PORTOUT(axStep, axstep);
SYSTEM.PORTOUT(errTerm, errterm);
IF width <= 8 THEN
WHILE height > 0 DO DEC(height);
SYSTEM.GET(pat, bit8); INC(pat);
WaitFIFO4;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
SYSTEM.PORTOUT(pixTrans, ORD(bit8) * 100H);
DEC(y);
END
ELSIF width <= 16 THEN
WHILE height > 0 DO DEC(height);
SYSTEM.GET(pat, bit16); INC(pat, 2);
WaitFIFO4;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
SYSTEM.PORTOUT(pixTrans, bit16);
DEC(y);
END
ELSIF width <=24 THEN
WHILE height > 0 DO DEC(height);
SYSTEM.GET(pat, bit24); INC(pat, 3);
bit24 := SYSTEM.LSH(bit24 * {0 .. 23}, 8);
bit24 := SYSTEM.ROT(bit24, 16);
WaitFIFO5;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, bit24*{0..15}));
bit24 := SYSTEM.ROT(bit24, 16);
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, bit24*{0..15}));
DEC(y);
END
ELSE
WHILE height > 0 DO DEC(height);
SYSTEM.GET(pat, bit32); INC(pat, 4);
bit32 := SYSTEM.ROT(bit32, 16);
WaitFIFO5;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, bit32*{0..15}));
bit32 := SYSTEM.ROT(bit32, 16);
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, bit32*{0..15}));
DEC(y);
END
END;
END CopyPattern;
PROCEDURE ReplConst*(col: Color; x, y, w, h, mode: LONGINT);
BEGIN
IF (w > 0) & (h > 0) THEN
DEC(h); DEC(w); y := Height-1-y;
WaitFIFO8;
IF mode = invert THEN SYSTEM.PORTOUT(FGmix, LONG(25H)) ELSE SYSTEM.PORTOUT(FGmix, LONG(27H)) END;
SYSTEM.PORTOUT(FGcol, SHORT(col));
SYSTEM.PORTOUT(MFcont, SHORT(pixctrl1));
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(majAxis, SHORT(w));
SYSTEM.PORTOUT(minAxis, SHORT(h));
SYSTEM.PORTOUT(cmdReg, 4073H)
END
END ReplConst;
PROCEDURE FillPattern*(col: Color; pat: Pattern; px, py, x, y, w, h, mode: LONGINT);
VAR patwidth, patheight: SHORTINT;
diastep, axstep, errterm, bit16: INTEGER;
offset, W0, Y0, X0: INTEGER;
pat0, bit32: LONGINT;
wth, hgt: INTEGER;
BEGIN
IF (w > 0) & (h > 0) THEN
SYSTEM.GET(pat, patwidth);
SYSTEM.GET(pat+1, patheight);
INC(pat, 2);
wth := SHORT(w+7) DIV 8 * 8; (* nof complete bytes *)
axstep := 0;
diastep := -2*wth;
errterm := -wth-1;
INC(x, w-1);
Y0 := SHORT(y); X0 := SHORT(x); y := Height-1-y;
WaitFIFO8;
IF mode = invert THEN SYSTEM.PORTOUT(FGmix, LONG(25H)); SYSTEM.PORTOUT(BGmix, LONG(3H))
ELSIF mode = paint THEN SYSTEM.PORTOUT(FGmix, LONG(27H)); SYSTEM.PORTOUT(BGmix, LONG(3H))
ELSE SYSTEM.PORTOUT(FGmix, LONG(27H)); SYSTEM.PORTOUT(BGmix, LONG(1H)) END;
SYSTEM.PORTOUT(FGcol, SHORT(col));
SYSTEM.PORTOUT(MFcont, SHORT(pixctrl2));
SYSTEM.PORTOUT(majAxis, SHORT(w-1));
SYSTEM.PORTOUT(diaStep, diastep);
SYSTEM.PORTOUT(axStep, axstep);
SYSTEM.PORTOUT(errTerm, errterm);
pat0 := pat; W0 := SHORT(w);
hgt := patheight - (Y0 + SHORT(py)) MOD patheight;
offset := (Y0 + SHORT(py)) MOD patheight;
IF patwidth = 16 THEN
pat := pat + 2*offset;
WHILE h > 0 DO
w := (w + 7) DIV 8 * 4;
SYSTEM.GET(pat, bit16); INC(pat, 2);
bit16 := SYSTEM.ROT(bit16, SHORT(px)-X0);
WaitFIFO3;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
WHILE w > 0 DO
WaitFIFO1;
SYSTEM.PORTOUT(pixTrans, bit16);
DEC(w,2);
END;
DEC(y);
DEC(h); DEC(hgt); w := W0;
IF hgt <= 0 THEN hgt := patheight; pat := pat0 END;
END
ELSIF patwidth = 32 THEN
pat := pat + 4*offset;
WHILE h > 0 DO
w := (w + 7) DIV 8 * 2;
SYSTEM.GET(pat, bit32); INC(pat, 4);
bit32 := SYSTEM.ROT(bit32, SHORT(px)-X0+16);
WaitFIFO3;
SYSTEM.PORTOUT(curX, SHORT(x));
SYSTEM.PORTOUT(curY, SHORT(y));
SYSTEM.PORTOUT(cmdReg, 2313H);
WHILE w > 0 DO
WaitFIFO2;
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, SYSTEM.VAL(SET, bit32)*{0..15}));
bit32 := SYSTEM.ROT(bit32, 16);
SYSTEM.PORTOUT(pixTrans, SYSTEM.VAL(LONGINT, SYSTEM.VAL(SET, bit32)*{0..15}));
DEC(w,4)
END;
DEC(y);
DEC(h); DEC(hgt); w := W0;
IF hgt <= 0 THEN hgt := patheight; pat := pat0 END
END
END
END
END FillPattern;
PROCEDURE ReplPattern*(col: Color; pat: Pattern; x, y, w, h, mode: LONGINT);
BEGIN
FillPattern(col, pat, 0, 0, x, y, w, h, mode)
END ReplPattern;
PROCEDURE NewPattern*(w, h: LONGINT; VAR image: ARRAY OF SET): Pattern;
VAR len, src, dest, i: LONGINT; p: PatternPtr; pl: List;
BEGIN
len := (w+7) DIV 8;
SYSTEM.NEW(p, 4+len*h); p.w := CHR(w); p.h := CHR(h);
src := SYSTEM.ADR(image[0]); dest := SYSTEM.ADR(p.pixmap[0]);
i := 0;
WHILE i < h DO SYSTEM.MOVE(src, dest, len); INC(src, 4); INC(dest, len); INC(i) END;
NEW(pl); pl.pat := p; pl.next := Pat; Pat := pl; (* put in list to avoid GC *)
RETURN SYSTEM.ADR(p.w)
END NewPattern;
PROCEDURE CreatePatterns;
VAR image: ARRAY 16 OF SET;
BEGIN
image[0] := {13};
image[1] := {12..14};
image[2] := {11..13};
image[3] := {10..12};
image[4] := {9..11};
image[5] := {8..10};
image[6] := {7..9};
image[7] := {0, 6..8};
image[8] := {0, 1, 5..7};
image[9] := {0..2, 4..6};
image[10] := {0..5};
image[11] := {0..4};
image[12] := {0..5};
image[13] := {0..6};
image[14] := {0..7};
arrow := NewPattern(15, 15, image);
image[0] := {0, 10};
image[1] := {1, 9};
image[2] := {2, 8};
image[3] := {3, 7};
image[4] := {4, 6};
image[5] := {};
image[6] := {4, 6};
image[7] := {3, 7};
image[8] := {2, 8};
image[9] := {1, 9};
image[10] := {0, 10};
cross := NewPattern(11, 11, image);
image[0] := {6};
image[1] := {5..7};
image[2] := {4..8};
image[3] := {3..9};
image[4] := {2..10};
image[5] := {5..7};
image[6] := {5..7};
image[7] := {5..7};
image[8] := {5..7};
image[9] := {5..7};
image[10] := {5..7};
image[11] := {5..7};
image[12] := {5..7};
image[13] := {5..7};
image[14] := {};
downArrow := NewPattern(15, 15, image);
image[0] := {0, 4, 8, 12};
image[1] := {};
image[2] := {2, 6, 10, 14};
image[3] := {};
image[4] := {0, 4, 8, 12};
image[5] := {};
image[6] := {2, 6, 10, 14};
image[7] := {};
image[8] := {0, 4, 8, 12};
image[9] := {};
image[10] := {2, 6, 10, 14};
image[11] := {};
image[12] := {0, 4, 8, 12};
image[13] := {};
image[14] := {2, 6, 10, 14};
image[15] := {};
grey0 := NewPattern(16, 16, image);
image[0] := {0, 2, 4, 6, 8, 10, 12, 14};
image[1] := {1, 3, 5, 7, 9, 11, 13, 15};
image[2] := {0, 2, 4, 6, 8, 10, 12, 14};
image[3] := {1, 3, 5, 7, 9, 11, 13, 15};
image[4] := {0, 2, 4, 6, 8, 10, 12, 14};
image[5] := {1, 3, 5, 7, 9, 11, 13, 15};
image[6] := {0, 2, 4, 6, 8, 10, 12, 14};
image[7] := {1, 3, 5, 7, 9, 11, 13, 15};
image[8] := {0, 2, 4, 6, 8, 10, 12, 14};
image[9] := {1, 3, 5, 7, 9, 11, 13, 15};
image[10] := {0, 2, 4, 6, 8, 10, 12, 14};
image[11] := {1, 3, 5, 7, 9, 11, 13, 15};
image[12] := {0, 2, 4, 6, 8, 10, 12, 14};
image[13] := {1, 3, 5, 7, 9, 11, 13, 15};
image[14] := {0, 2, 4, 6, 8, 10, 12, 14};
image[15] := {1, 3, 5, 7, 9, 11, 13, 15};
grey1 := NewPattern(16, 16, image);
image[0] := {0, 1, 4, 5, 8, 9, 12, 13};
image[1] := {0, 1, 4, 5, 8, 9, 12, 13};
image[2] := {2, 3, 6, 7, 10, 11, 14, 15};
image[3] := {2, 3, 6, 7, 10, 11, 14, 15};
image[4] := {0, 1, 4, 5, 8, 9, 12, 13};
image[5] := {0, 1, 4, 5, 8, 9, 12, 13};
image[6] := {2, 3, 6, 7, 10, 11, 14, 15};
image[7] := {2, 3, 6, 7, 10, 11, 14, 15};
image[8] := {0, 1, 4, 5, 8, 9, 12, 13};
image[9] := {0, 1, 4, 5, 8, 9, 12, 13};
image[10] := {2, 3, 6, 7, 10, 11, 14, 15};
image[11] := {2, 3, 6, 7, 10, 11, 14, 15};
image[12] := {0, 1, 4, 5, 8, 9, 12, 13};
image[13] := {0, 1, 4, 5, 8, 9, 12, 13};
image[14] := {2, 3, 6, 7, 10, 11, 14, 15};
image[15] := {2, 3, 6, 7, 10, 11, 14, 15};
grey2 := NewPattern(16, 16, image);
image[0] := {0..2, 8..11};
image[1] := {0..2, 7..10};
image[2] := {0..2, 6..9};
image[3] := {0..2, 5..8};
image[4] := {0..2, 4..7};
image[5] := {0..6};
image[6] := {0..5};
image[7] := {0..4};
image[8] := {0..3};
image[9] := {0..2};
image[10] := {0, 1};
image[11] := {0};
hook := NewPattern(12, 12, image);
image[0] := {7};
image[1] := {7};
image[2] := {2, 7, 12};
image[3] := {3, 7, 11};
image[4] := {4, 7, 10};
image[5] := {5, 7, 9};
image[6] := {6..8};
image[7] := {0..6, 8..14};
image[8] := {6..8};
image[9] := {5, 7, 9};
image[10] := {4, 7, 10};
image[11] := {3, 7, 11};
image[12] := {2, 7, 12};
image[13] := {7};
image[14] := {7};
star := NewPattern(15, 15, image);
image[0] := {};
image[1] := {};
image[2] := {0};
image[3] := {};
image[4] := {};
image[5] := {};
image[6] := {};
image[7] := {};
image[8] := {};
image[9] := {};
image[10] := {};
image[11] := {};
image[12] := {};
image[13] := {};
image[14] := {};
image[15] := {};
ticks := NewPattern(16, 16, image);
image[0] := -{};
image[1] := -{};
image[2] := -{};
image[3] := -{};
image[4] := -{};
image[5] := -{};
image[6] := -{};
image[7] := -{};
solid := NewPattern(16, 8, image)
END CreatePatterns;
PROCEDURE Depth*(x: LONGINT): INTEGER;
BEGIN
RETURN depth
END Depth;
PROCEDURE TrueColor*(x: LONGINT): BOOLEAN;
BEGIN
RETURN FALSE
END TrueColor;
PROCEDURE DisplayBlock*(adr, dx, dy, w, h, sx, sy, mode: LONGINT);
VAR BitmapWth, locW, locH: LONGINT;
CODE {SYSTEM.i386}
MOVSX EAX, Width
MOV locW[EBP], EAX ; locW := Width
MOVSX EAX, Height
DEC EAX
MOV locH[EBP], EAX ; locH := Height-1
MOV ESI, adr[EBP] ; address of bitmap descriptor
MOV EDI, 12[ESI]
MOV ESI, 8[ESI]
MOV BitmapWth[EBP], ESI
MOV ECX, dy[EBP]
IMUL ESI,ECX
MOV EBX, dx[EBP]
ADD ESI, EBX
ADD ESI, EDI ; esi = source index register
MOV EDI, locW[EBP]
MOV EBX, locH[EBP]
DEC EBX ;!!!!
SUB EBX,sy[EBP]
IMUL EDI,EBX
MOV EBX, sx[EBP]
ADD EDI, EBX ; edi = destination index register without VGAaddr
MOV EAX, locH[EBP]
SUB EAX, sy[EBP]
MOV sy[EBP], EAX
MOV DX, 9AE8H
lab1:
IN AX, DX
AND AX, 100H
JNZ lab1
CMP mode[EBP], 1
JL repllab
JG invlab
MOV AX, 4BH
JMP contlab
repllab:
MOV AX, 47H
JMP contlab
invlab:
MOV AX, 45H
contlab:
MOV DX, 0BAE8H
OUT DX, AX
MOV DX, 0BEE8H
MOV AX, 0A000H
OUT DX, AX
MOV DX, 086E8H
MOV AX, WORD sx[EBP]
OUT DX, AX
MOV DX, 082E8H
MOV AX, WORD sy[EBP]
OUT DX, AX
MOV DX, 096E8H
MOV AX, WORD w[EBP]
DEC AX
OUT DX, AX
MOV DX, 0BEE8H
MOV AX, WORD h[EBP]
DEC AX
OUT DX, AX
MOV DX, 09AE8H
MOV AX, 05331H
OUT DX, AX
MOV DX, 0E2E8H
RowLoopR:
MOV CX, WORD w[EBP]
INC CX
SHR CX, 1
PUSH ESI
lab2:
MOV AX, [ESI]
OUT DX, AX
INC ESI
INC ESI
DEC CX
JNZ lab2
POP ESI
ADD ESI, BitmapWth[EBP]
DEC h[EBP]
JNZ RowLoopR
DispEnd:
END DisplayBlock;
PROCEDURE TransferFormat*(x: LONGINT): LONGINT;
BEGIN
RETURN unknown
END TransferFormat;
PROCEDURE TransferBlock*(VAR buf: ARRAY OF CHAR; ofs, stride, x, y, w, h, mode: LONGINT);
BEGIN
HALT(99)
END TransferBlock;
PROCEDURE GetVal(str: ARRAY OF CHAR; default: LONGINT): LONGINT;
VAR i: SHORTINT; v, sgn: LONGINT; s: ARRAY 10 OF CHAR;
BEGIN
Kernel.GetConfig(str, s);
IF s[0] = 0X THEN
v := default
ELSE
v := 0; i := 0;
WHILE s[i] # 0X DO v := v*10+(ORD(s[i])-48); INC(i) END
END;
RETURN v
END GetVal;
BEGIN
depth := SHORT(GetVal("Color", 1)); (* assume 1 if not specified *)
IF depth = 0 THEN depth := 1 ELSE depth := 8 END;
Width := SHORT(GetVal("DWidth", 1024)); (* assume 1024 if not specified *)
Height := SHORT(GetVal("DHeight", 768)); (* assume 768 if not specified *)
dmem := GetVal("DMem", 1024)*1024; (* assume 1Mb if not specified *)
UBottom := Height - SHORT(dmem DIV Width) + 1;
Left:= 0; ColLeft:= 0; Bottom:= 0;
Pat := NIL;
mask := -1; pixctrl1 := 0A000H; pixctrl2 := 0A080H; copycmd := 0C053H;
EnableRegs;
width := Width;
height := Height;
ResetClip;
CreatePatterns;
Unit := 10000
END Display.