411 REFERENCE · Wikibooks
Oberon/ETH Oberon/2.3.7/S3TrioC.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;
(* Type: S3Trio (ard, pjm, Peter Matthias) *)
IMPORT Kernel, SYSTEM, Objects, V86;
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 , packed MMIO *)
curY= 0A8100H; curX= 0A8102H;
axStep= 0A8108H; diaStep= 0A810AH;
errTerm= 0A8110H;
cmd= 0A8118H;
shortStroke= 0A811CH;
BGcol= 0A8120H;
FGcol= 0A8124H;
wrtMask= 0A8128H;
rdMask= 0A812CH;
ColorCMP= 0A8130H;
BGmix= 0A8134H; FGmix= 0A8136H; AltMix= 0A8134H;
ScissorsT= 0A8138H; ScissorsL= 0A813AH; (* clippint top, left *)
ScissorsB= 0A813CH; ScissorsR= 0A813EH; (* clipping bottom, right *)
PixCntl= 0A8140H; MultMisc2= 0A8142H;
MultMisc= 0A8144H; ReadSel= 0A8146H;
MinAxis= 0A8148H; MajAxis= 0A814AH;
pixTrans = 0AE2E8H;
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*: INTEGER; (* map height *)
arrow*, star*, cross*, downArrow*, hook*,
grey0*, grey1*, grey2*, ticks*, solid*: Pattern;
Broadcast*: MsgProc;
Pat: List;
dmem, base: LONGINT;
clipx, clipy, clipright, cliptop: LONGINT; (* clipping variables *)
depth: INTEGER;
truecol: LONGINT;
colmap, palette: ARRAY 256 OF LONGINT;
PROCEDURE Wait;
VAR wait: INTEGER;
BEGIN
REPEAT SYSTEM.GET( cmd, wait) UNTIL ~ODD( ASH( wait, -9));
END Wait;
PROCEDURE Map*(x: LONGINT): LONGINT;
BEGIN
RETURN base (* of linear framebuffer *)
END Map;
PROCEDURE AdjustClip*(x, y, w, h: LONGINT);
VAR right, top, left, bottom: LONGINT;
BEGIN
right := x + w;
IF x > clipx THEN clipx:= x END;
IF right < clipright THEN clipright:= right END;
left:= clipx;
IF left < 0 THEN left := 0 ELSIF left > Width THEN left := Width-1 END;
right := clipright-1;
IF right < 0 THEN right := 0 ELSIF right > Width THEN right := Width-1 END;
top := y + h;
IF y> clipy THEN clipy:= y END;
IF top< cliptop THEN cliptop:= top END;
top := cliptop-1;
IF top < 0 THEN top := 0 ELSIF top >= Height THEN top := Height-1 END;
bottom := clipy;
IF bottom < 0 THEN bottom := 0 ELSIF bottom > Height THEN bottom := Height-1 END;
SYSTEM.PUT( ScissorsT, SYSTEM.VAL(INTEGER, 1000H+ Height-1-top)); (* top *)
SYSTEM.PUT( ScissorsL, SYSTEM.VAL(INTEGER, 2000H+ left)); (* left *)
SYSTEM.PUT( ScissorsB, SYSTEM.VAL(INTEGER, 3000H+ Height-1-bottom)); (* bottom *)
SYSTEM.PUT( ScissorsR, SYSTEM.VAL(INTEGER, 4000H+ right)) (* right *)
END AdjustClip;
PROCEDURE GetDim*(pat: Pattern; VAR w, h: INTEGER);
VAR p: PatternPtr;
BEGIN
p:= SYSTEM.VAL( PatternPtr, pat);
w:= ORD(p^.w); h:= ORD(p^.h)
END GetDim;
PROCEDURE ResetClip*;
BEGIN
clipx := 0; clipy := UBottom;
clipright := Width;
cliptop := Height;
SYSTEM.PUT( ScissorsT, SYSTEM.VAL(INTEGER, 1000H)); (* top *)
SYSTEM.PUT( ScissorsL, SYSTEM.VAL(INTEGER, 2000H)); (* left *)
SYSTEM.PUT( ScissorsB, SYSTEM.VAL(INTEGER, 3000H+ Height-1-UBottom)); (* bottom *)
SYSTEM.PUT( ScissorsR, SYSTEM.VAL(INTEGER, 4000H+ Width-1)) (* right *)
END ResetClip;
PROCEDURE SetClip*(x, y, w, h: LONGINT);
BEGIN
clipright := x+w;
cliptop := y+h;
clipy := y; clipx := x;
SYSTEM.PUT( ScissorsT, SYSTEM.VAL(INTEGER, 1000H + Height-cliptop)); (* top *)
SYSTEM.PUT( ScissorsL, SYSTEM.VAL(INTEGER, 2000H + clipx)); (* left *)
SYSTEM.PUT( ScissorsB, SYSTEM.VAL(INTEGER, 3000H + Height-1-clipy)); (* bottom *)
SYSTEM.PUT( ScissorsR, SYSTEM.VAL(INTEGER, 4000H + clipright-1)); (* right *)
END SetClip;
PROCEDURE GetClip*(VAR x, y, w, h: INTEGER);
BEGIN
x := SHORT(clipx); y := SHORT(clipy); w := SHORT(clipright - clipx); h := SHORT(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;
CASE truecol OF
0: (* indexed *)
colmap[col] := col;
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;
SYSTEM.PORTOUT(3C8H, CHR(col));
SYSTEM.PORTOUT(3C9H, CHR(red DIV 4));
SYSTEM.PORTOUT(3C9H, CHR(green DIV 4));
SYSTEM.PORTOUT(3C9H, CHR(blue DIV 4))
|1: (* 565 hicolor *)
colmap[col] := ASH(ASH(ASH(red, -3), 6) + ASH(green, -2), 5) + ASH(blue, -3)
|2: (* 888 truecolor *)
colmap[col] := ASH(ASH(red, 8) + green, 8) + blue
END
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;
(* Translate a Color value
col >= 0 => index through colmap
col < 0 & truecol = 0 => undefined
col < 0 & truecol = 1 => translate 888 to 565
col < 0 & truecol = 2 => keep lower 24 bits
*)
PROCEDURE -TransColor(col: Color): LONGINT;
CODE {SYSTEM.i386}
POP EAX
CMP EAX, 0
JGE index
AND EAX, 0FFFFFFH
CMP truecol, 1
JNE end
MOV EBX, EAX
MOV ECX, EAX
SHR EAX, 8 ; 23..19 -> 15..11
SHR EBX, 5 ; 15..10 -> 10..5
SHR ECX, 3 ; 7..3 -> 4..0
AND EAX, 0F800H ; 15..11
AND EBX, 007E0H ; 10..5
AND ECX, 0001FH ; 4..0
OR EAX, EBX
OR EAX, ECX
JMP end
index:
AND EAX, 0FFH
LEA EBX, colmap
MOV EAX, [EBX][EAX*4]
end:
END TransColor;
PROCEDURE Dot*(col: Color; x, y, mode: LONGINT);
BEGIN
IF mode = invert THEN
IF (truecol # 0) & (col = FG) THEN col := 0FFFFFFH END;
SYSTEM.PUT(FGmix, LONG(25H))
(*ELSIF mode= paint THEN
SYSTEM.PUT( FGmix, LONG(2BH))*)
ELSE
SYSTEM.PUT(FGmix, LONG(27H))
END;
SYSTEM.PUT(FGcol, TransColor(col));
SYSTEM.PUT(PixCntl, LONG( 0));
SYSTEM.PUT(curX, SHORT(x));
SYSTEM.PUT(curY, SHORT(Height-1-y));
Wait;
SYSTEM.PUT(cmd, 121BH);
SYSTEM.PUT(shortStroke, LONG(10H))
END Dot;
PROCEDURE CopyBlock*(sx, sy, w, h, dx, dy, mode: LONGINT);
VAR comd: INTEGER;
BEGIN
IF (w > 0) & (h > 0) THEN
comd := SYSTEM.VAL(INTEGER, 0C073H);
IF sy <= dy THEN
INC(sy, h-1); INC(dy, h-1); INC(comd, 128);
IF sx < dx THEN INC(sx, w-1); INC(dx, w-1); DEC(comd, 32) END
END;
IF mode = invert THEN
SYSTEM.PUT(FGmix, LONG(65H))
ELSE
SYSTEM.PUT(FGmix, LONG(67H))
END;
SYSTEM.PUT(PixCntl, LONG(0));
SYSTEM.PUT(curX, SHORT(sx));
SYSTEM.PUT(curY, SHORT(Height - 1 - sy));
SYSTEM.PUT(diaStep, SHORT(dx));
SYSTEM.PUT(axStep, SHORT(Height -1 - dy));
SYSTEM.PUT(MajAxis, SHORT(w-1));
SYSTEM.PUT(MinAxis, SHORT(h-1));
Wait;
SYSTEM.PUT(cmd, comd)
END
END CopyBlock;
PROCEDURE SetMode*(x: LONGINT; s: SET);
VAR mode: LONGINT;
BEGIN
IF s # {} THEN
mode := SYSTEM.VAL(LONGINT, s);
InitMode(mode);
truecol := x;
(*Kernel.WriteString("SetMode "); Kernel.WriteInt(truecol, 1); Kernel.WriteHex(mode, 9); Kernel.WriteLn;*)
InitS3(FALSE);
ResetClip
END
END SetMode;
PROCEDURE CopyPattern*(col: Color; pat: Pattern; x, y, mode: LONGINT);
VAR wth, pwidth, pos: LONGINT; p: PatternPtr;
BEGIN
p:= SYSTEM.VAL( PatternPtr, pat);
wth:=(ORD(p.w)+7) DIV 8;
INC(x, wth*8-1);
y := Height-y-ORD(p.h);
IF mode= invert THEN
IF (truecol # 0) & (col = FG) THEN col := 0FFFFFFH END;
SYSTEM.PUT(AltMix, 250003H)
ELSIF mode= replace THEN
SYSTEM.PUT(AltMix, 270001H)
ELSE
SYSTEM.PUT(AltMix, 270003H)
END;
SYSTEM.PUT(FGcol, TransColor(col));
SYSTEM.PUT(PixCntl, ORD( 80X));
SYSTEM.PUT(MajAxis, SHORT( wth*8-1));
pos:= wth*ORD(p.h);
WHILE pos>0 DO
SYSTEM.PUT(curX, SHORT(x));
SYSTEM.PUT(curY, SHORT(y));
Wait;
SYSTEM.PUT(cmd, 219BH);
pwidth:= wth;
REPEAT
DEC( pos); DEC( pwidth);
SYSTEM.PUT( pixTrans, p.pixmap[ pos]);
UNTIL (pwidth<=0);
INC( y)
END
END CopyPattern;
PROCEDURE ReplConst*(col: Color; x, y, w, h, mode: LONGINT);
BEGIN
IF (w > 0) & (h > 0) THEN
IF mode = invert THEN
IF (truecol # 0) & (col = FG) THEN col := 0FFFFFFH END;
SYSTEM.PUT(FGmix, LONG(25H))
(*ELSIF mode= paint THEN
SYSTEM.PUT( FGmix, LONG(2BH))*)
ELSE
SYSTEM.PUT(FGmix, LONG(27H))
END;
SYSTEM.PUT(FGcol, TransColor(col));
SYSTEM.PUT(PixCntl, LONG( 0));
SYSTEM.PUT(curX, SHORT(x));
SYSTEM.PUT(curY, SHORT(Height-1-y));
SYSTEM.PUT(MajAxis, SHORT(w-1));
SYSTEM.PUT(MinAxis, SHORT(h-1));
Wait;
SYSTEM.PUT(cmd, 4073H)
END
END ReplConst;
PROCEDURE FillPattern*(col: Color; pat: Pattern; px, py, x, y, w, h, mode: LONGINT);
VAR bit16: INTEGER; pat0, bit32, yo, hgt, wdt: LONGINT; p: PatternPtr;
BEGIN
IF (w > 0) & (h > 0) THEN
p:= SYSTEM.VAL( PatternPtr, pat);
INC(pat, 2);
INC(x, w-1);
yo:= (y + py) MOD ORD(p.h);
y := Height-1-y;
IF mode= invert THEN
IF (truecol # 0) & (col = FG) THEN col := 0FFFFFFH END;
SYSTEM.PUT( AltMix, 250003H)
ELSIF mode= replace THEN
SYSTEM.PUT( AltMix, 270001H)
ELSE
SYSTEM.PUT( AltMix, 270003H)
END;
SYSTEM.PUT(FGcol, TransColor(col));
SYSTEM.PUT(PixCntl, ORD( 80X));
SYSTEM.PUT(MajAxis, SHORT(w-1));
pat0 := pat+ ORD(p.w) DIV 8 * yo;
hgt := ORD(p.h) - yo;
WHILE h > 0 DO
wdt:= ( w + 7 ) DIV 8;
IF ORD(p.w) = 16 THEN
SYSTEM.GET(pat0, bit16); INC(pat0, 2);
bit32:= LONG( bit16)* 10000H+ LONG( bit16) MOD 10000H
ELSIF ORD(p.w) = 32 THEN SYSTEM.GET(pat0, bit32); INC(pat0, 4)
END;
bit32 := SYSTEM.ROT(bit32, px-x); (* SYSTEM.ROT(bit32, pX-X0+16) ?? *)
SYSTEM.PUT(curX, SHORT(x));
SYSTEM.PUT(curY, SHORT(y));
Wait;
SYSTEM.PUT(cmd, 239BH);
WHILE wdt >0 DO
SYSTEM.PUT(pixTrans, bit32);
DEC( wdt,4)
END;
DEC(y);
DEC(h); DEC(hgt);
IF hgt <= 0 THEN hgt := ORD(p.h); pat0 := pat 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); dest := SYSTEM.ADR(p.pixmap);
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 truecol > 0
END TrueColor;
PROCEDURE DB0( adr, bw, wdt, h: LONGINT);
CODE {SYSTEM.i386}
MOV ESI, adr[ EBP]
MOV EAX, bw[ EBP]
MOV EBX, wdt[ EBP]
ADD EBX, 3
AND EBX, 0FFFFFFFCH
SUB EAX, EBX
SHR EBX, 2
MOV EDX, h[ EBP]
CLD
labY:
MOV EDI, 0A0000H
MOV ECX, EBX
REP MOVSD
ADD ESI, EAX
DEC EDX
JNZ labY
END DB0;
PROCEDURE DB1(adr, bw, wdt, h: LONGINT);
CODE {SYSTEM.i386}
MOV ESI, adr[EBP]
MOV ECX, wdt[EBP]
INC ECX
AND ECX, 0FFFFFFFEH
SUB bw[EBP], ECX
SHR ECX, 1
MOV wdt[EBP], ECX
LEA EDX, colmap
CLD
labY:
MOV EDI, 0A0000H
MOV ECX, wdt[EBP]
loop:
LODSW
MOV EBX, EAX
AND EAX, 0FFH
SHR EBX, 8
MOV EAX, [EDX][EAX*4]
AND EBX, 0FFH
MOV EBX, [EDX][EBX*4]
SHL EBX, 16
OR EAX, EBX
STOSD
LOOP loop
ADD ESI, bw[EBP]
DEC h[EBP]
JNZ labY
END DB1;
PROCEDURE DB2(adr, bw, wdt, h: LONGINT);
CODE {SYSTEM.i386}
MOV ESI, adr[EBP]
MOV ECX, wdt[EBP]
SUB bw[EBP], ECX
LEA EDX, colmap
CLD
labY:
MOV EDI, 0A0000H
MOV ECX, wdt[EBP]
loop:
LODSB
AND EAX, 0FFH
MOV EAX, [EDX][EAX*4]
STOSD
LOOP loop
ADD ESI, bw[EBP]
DEC h[EBP]
JNZ labY
END DB2;
(*
PROCEDURE DBobn( adr, bw, wdt, h: LONGINT);
VAR i, j: LONGINT;
BEGIN
WHILE h>0 DO
FOR i:=0 TO wdt BY 4 DO
SYSTEM.GET( adr+i, j);
SYSTEM.PUT( pixTrans, j); (* pixTrans or 0A0000H..0A7FFCH *)
END;
INC( adr, bw);
DEC( h);
END;
END DBobn;
*)
PROCEDURE DisplayBlock*(adr, dx, dy, w, h, sx, sy, mode: LONGINT);
VAR width, blockadr: LONGINT;
BEGIN
SYSTEM.GET(adr+8, width);
SYSTEM.GET(adr+12, blockadr);
sy := Height-1-sy;
IF mode # invert THEN SYSTEM.PUT(FGmix, SYSTEM.VAL(INTEGER, 47H)) (* replace, paint *)
ELSE SYSTEM.PUT(FGmix, SYSTEM.VAL(INTEGER, 45H)) (* invert *)
END;
SYSTEM.PUT(PixCntl, SYSTEM.VAL(INTEGER, 0A000H));
SYSTEM.PUT(curX, SHORT(sx));
SYSTEM.PUT(curY, SHORT(sy));
SYSTEM.PUT(MajAxis, SHORT(w-1));
SYSTEM.PUT(MinAxis, SHORT(h-1));
Wait;
SYSTEM.PUT(cmd, SYSTEM.VAL(INTEGER, 5531H));
CASE truecol OF
0: DB0(blockadr + width*dy + dx, width, w, h)
|1: DB1(blockadr + width*dy + dx, width, w, h)
|2: DB2(blockadr + width*dy + dx, width, w, h)
END
END DisplayBlock;
PROCEDURE TransferFormat*(x: LONGINT): LONGINT;
BEGIN
CASE truecol OF
0: x := index8
|1: x := color565
|2: x := color8888
END;
RETURN x
END TransferFormat;
PROCEDURE TransferBlock*(VAR buf: ARRAY OF CHAR; ofs, stride, x, y, w, h, mode: LONGINT);
BEGIN
IF mode = set THEN
y := Height-1-y;
SYSTEM.PUT(FGmix, 47H);
SYSTEM.PUT(PixCntl, LONG( 0H));
SYSTEM.PUT(curX, SHORT(x));
SYSTEM.PUT(curY, SHORT(y));
SYSTEM.PUT(MajAxis, SHORT(w-1));
SYSTEM.PUT(MinAxis, SHORT(h-1));
Wait;
SYSTEM.PUT(cmd, 5531H);
DB0(SYSTEM.ADR(buf[ofs]), stride, ASH(w, truecol), h)
END
END TransferBlock;
PROCEDURE GetVal(str: ARRAY OF CHAR; default: LONGINT): LONGINT;
VAR i: SHORTINT; v: 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;
PROCEDURE InitMode(mode: LONGINT);
VAR vreg: V86.Regs;
BEGIN
vreg.EAX := 4F02H; vreg.EBX := mode;
V86.Video(vreg)
END InitMode;
PROCEDURE InitS3(first: BOOLEAN);
VAR ch: CHAR; mask, i, mode: LONGINT;
BEGIN
FOR i := 0 TO 255 DO colmap[i] := i END;
IF first THEN
truecol := GetVal("DColor", 0);
mode := GetVal("Color", 1); (* assume 1 if not specified *)
IF mode = 0 THEN
depth := 1
ELSE
IF truecol = 0 THEN depth := 8 ELSE depth := 24 END
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 *)
mode := -1;
IF Width = 640 THEN
CASE truecol OF
1: mode := 111H
|2: mode := 112H
ELSE (* skip *)
END
ELSIF Width = 800 THEN
CASE truecol OF
0: mode := 103H
|1: mode := 114H
|2: mode := 115H
ELSE (* skip *)
END
ELSIF Width = 1024 THEN
CASE truecol OF
0: mode := 105H
|1: mode := 117H
|2: mode := 118H
ELSE (* skip *)
END
ELSIF Width = 1280 THEN
CASE truecol OF
0: mode := 107H
|1: mode := 11AH
ELSE (* skip *)
END
ELSE (* skip *)
END;
IF mode # -1 THEN InitMode(mode) END
END;
SYSTEM.PORTOUT( 3D4H, 2DH);
SYSTEM.PORTIN( 3D5H, ch);
IF ch= 88X THEN
SYSTEM.PORTOUT( 3D4H, 2EH);
SYSTEM.PORTIN( 3D5H, ch);
IF ch= 11X THEN (* Trio found *)
Width:=0; Height:=0;
SYSTEM.PORTOUT( 3D4H, 5DH); (* get Width *)
SYSTEM.PORTIN( 3D5H, ch);
IF ODD( ORD( ch) DIV 2) THEN Width:= 256*8 END;
SYSTEM.PORTOUT( 3D4H, 1);
SYSTEM.PORTIN( 3D5H, ch);
INC( Width, ( ORD( ch)+1)*8);
IF truecol = 1 THEN Width := Width DIV 2 END;
SYSTEM.PORTOUT( 3D4H, 5EH); (* get Height *)
SYSTEM.PORTIN( 3D5H, ch);
IF ODD( ORD( ch) DIV 2) THEN Height:= 1024 END;
SYSTEM.PORTOUT( 3D4H, 7);
SYSTEM.PORTIN( 3D5H, ch);
IF ODD( ORD( ch) DIV 2) THEN INC( Height, 256) END;
IF ODD( ORD( ch) DIV 64) THEN INC( Height, 512) END;
SYSTEM.PORTOUT( 3D4H, 12H);
SYSTEM.PORTIN( 3D5H, ch);
INC( Height, ORD( ch)+1);
SYSTEM.PORTOUT( 3D4H, 36H); (* get MemSize *)
SYSTEM.PORTIN( 3D5H, ch);
mask:= ASH( ORD( ch), -5);
IF mask= 0 THEN dmem:= 4096*1024;
ELSIF mask= 4 THEN dmem:= 2048*1024;
ELSE dmem:= 1024*1024;
END;
END;
END;
UBottom := Height - SHORT((dmem-4096) DIV Width) + 1; (* Space for 4 Sprites reserved *)
SYSTEM.PORTOUT( 3D4H, 1053H); (* 10H: enable old MMIO 18H: old & new MMIO *)
mask:= -1;
SYSTEM.PUT(wrtMask, mask); (* Write mask *)
SYSTEM.PUT(rdMask, mask); (* Read mask *)
Kernel.MapPhysical(0E0000000H, dmem, base);
IF base # 0 THEN (* enable lfb *)
SYSTEM.PORTOUT( 3D4H, 0831H); (* CR31 bit 3: enhanced mode mapping*)
IF dmem<=1024*1024 THEN SYSTEM.PORTOUT( 3D4H, 1158H);
ELSIF dmem<=2024*1024 THEN SYSTEM.PORTOUT( 3D4H, 1258H);
ELSE SYSTEM.PORTOUT( 3D4H, 1358H); (* bit 4: enable lfb, bit 0,1: size: 0= 64k, 1=1MB, 2= 2MB, 3= 4MB *)
END;
SYSTEM.PORTOUT( 3D4H, 59H); (* set base adr for lfb *)
SYSTEM.PORTOUT( 3D5H, CHR( ASH( base, -24) ));
SYSTEM.PORTOUT( 3D4H, 5AH);
SYSTEM.PORTOUT( 3D5H, CHR( ASH( base, -16) ));
(*
SYSTEM.PORTOUT( 3D4H, 33H); (* disable border *)
SYSTEM.PORTIN( 3D5H, ch);
SYSTEM.PORTOUT( 3D5H, SYSTEM.VAL( CHAR, SYSTEM.VAL( SET, ch)+{5}));
*)
END;
SYSTEM.PORTOUT( 3C4H, SYSTEM.VAL( INTEGER, 8009H)); (* disable programmed I/O *)
Kernel.WriteString("S3TrioC: "); Kernel.WriteInt(Width, 1);
Kernel.WriteChar("x"); Kernel.WriteInt(Height, 1);
Kernel.WriteChar("x"); Kernel.WriteInt(depth, 1);
CASE truecol OF
0: Kernel.WriteString(" 8-bit indexed")
|1: Kernel.WriteString(" 5,6,5-bit RGB")
|2: Kernel.WriteString(" 8,8,8-bit RGB")
END;
Kernel.WriteString(" (+"); Kernel.WriteInt(-UBottom, 1);
Kernel.WriteString(" offscreen)");
Kernel.WriteLn
END InitS3;
BEGIN
Left:= 0; ColLeft:= 0; Bottom:= 0; truecol := -1;
Pat := NIL;
IF Kernel.tspeed < 0 THEN Kernel.tspeed := 0 END; (* switch off screen tracing *)
InitS3(TRUE);
ResetClip;
CreatePatterns;
Unit := 10000
END Display.
(*
# Trio64 Display settings
# 0103 800 600 256 P8 0
# 0205 1024 768 256 P8 0
# 0107 1280 1024 256 P8 0
# 0211 640 480 64k P16 1
# 0111 640 480 64k P16 1
# 0114 800 600 64k P16 1
# 0117 1024 768 64k P16 1
# 011A 1280 1024 64k P16 1
# 0212 640 480 16m P24 2
# 0112 640 480 16m P32 2
# 0115 800 600 16m P32 2
# 0118 1024 768 16m P32 2
*)
(*
Compiler.Compile S3TrioC.Display.Mod\X ~
*)