170 lines
6.9 KiB
Plaintext
170 lines
6.9 KiB
Plaintext
Module Checkit {
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Function Bitmap {
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If match("NN") then {
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Read x as long, y as long
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} else.if Match("N") Then {
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\\ is a file?
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Read f
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if not Eof(f) then {
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Line Input #f, p3$
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If p3$="P3" Then {
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Line Input #f, Comment$
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if left$(Comment$,1)="#" then {
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Line Input #f, Dimension$
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} else Dimension$=Comment$
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long x=Val(piece$(Dimension$," ")(0))
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long y=Val(piece$(Dimension$," ")(1))
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do {
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Line Input #f, P255$
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} until left$(P255$, 1)<>"#"
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If not P255$="255" then Error "Not proper ppm format"
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}
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}
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} else Error "No proper arguments"
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if x<1 or y<1 then Error "Wrong dimensions"
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structure rgb {
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red as byte
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green as byte
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blue as byte
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}
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m=len(rgb)*x mod 4
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if m>0 then m=4-m ' add some bytes to raster line
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m+=len(rgb) *x
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Structure rasterline {
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{
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pad as byte*m
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}
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\\ union pad+hline
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hline as rgb*x
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}
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Structure Raster {
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magic as integer*4
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w as integer*4
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h as integer*4
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lines as rasterline*y
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}
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Buffer Clear Image1 as Raster
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\\ 24 chars as header to be used from bitmap render build in functions
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Return Image1, 0!magic:="cDIB", 0!w:=Hex$(x,2), 0!h:=Hex$(y, 2)
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\\ fill white (all 255)
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\\ Str$(string) convert to ascii, so we get all characters from words width to byte width
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if not valid(f) then Return Image1, 0!lines:=Str$(String$(chrcode$(255), Len(rasterline)*y))
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Buffer Clear Pad as Byte*4
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SetPixel=Lambda Image1, Pad,aLines=Len(Raster)-Len(Rasterline), blines=-Len(Rasterline) (x, y, c) ->{
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where=alines+3*x+blines*y
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if c>0 then c=color(c)
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c-!
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Return Pad, 0:=c as long
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Return Image1, 0!where:=Eval(Pad, 2) as byte, 0!where+1:=Eval(Pad, 1) as byte, 0!where+2:=Eval(Pad, 0) as byte
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}
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GetPixel=Lambda Image1,aLines=Len(Raster)-Len(Rasterline), blines=-Len(Rasterline) (x,y) ->{
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where=alines+3*x+blines*y
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=color(Eval(image1, where+2 as byte), Eval(image1, where+1 as byte), Eval(image1, where as byte))
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}
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StrDib$=Lambda$ Image1, Raster -> {
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=Eval$(Image1, 0, Len(Raster))
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}
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CopyImage=Lambda Image1 (image$) -> {
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if left$(image$,12)=Eval$(Image1, 0, 24 ) Then {
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Return Image1, 0:=Image$
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} Else Error "Can't Copy Image"
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}
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Export2File=Lambda Image1, x, y (f) -> {
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\\ use this between open and close
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Print #f, "P3"
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Print #f,"# Created using M2000 Interpreter"
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Print #f, x;" ";y
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Print #f, 255
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x2=x-1
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where=24
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For y1= 0 to y-1 {
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a$=""
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For x1=0 to x2 {
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Print #f, a$;Eval(Image1, where+2 as byte);" ";
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Print #f, Eval(Image1, where+1 as byte);" ";
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Print #f, Eval(Image1, where as byte);
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where+=3
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a$=" "
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}
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Print #f
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m=where mod 4
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if m<>0 then where+=4-m
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}
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}
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if valid(F) then {
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'load RGB values form file
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x0=x-1
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where=24
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For y1=y-1 to 0 {
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do {
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Line Input #f, aline$
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} until left$(aline$,1)<>"#"
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flush ' empty stack
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Stack aline$ ' place all values to stack as FIFO
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For x1=0 to x0 {
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\\ now read from stack using Number
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Return Image1, 0!where+2:=Number as byte, 0!where+1:=Number as byte, 0!where:=Number as byte
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where+=3
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}
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m=where mod 4
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if m<>0 then where+=4-m
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}
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}
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Group Bitmap {
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SetPixel=SetPixel
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GetPixel=GetPixel
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Image$=StrDib$
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Copy=CopyImage
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ToFile=Export2File
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}
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=Bitmap
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}
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A=Bitmap(10, 10)
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Call A.SetPixel(5,5, color(128,0,255))
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Open "A.PPM" for Output as #F
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Call A.ToFile(F)
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Close #f
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Open "A.PPM" for Input as #F
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Try {
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C=Bitmap(f)
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Copy 400*twipsx,200*twipsy use C.Image$()
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}
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Close #f
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' is the same as this one
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Open "A.PPM" for Input as #F
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Line Input #f, p3$
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If p3$="P3" Then {
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Line Input #f, Comment$
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if left$(Comment$,1)="#" then {
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Line Input #f, Dimension$
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} else Dimension$=Comment$
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Long x=Val(piece$(Dimension$," ")(0))
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Long y=Val(piece$(Dimension$," ")(1))
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do {
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Line Input #f, P255$
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} until left$(P255$, 1)<>"#"
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If not P255$="255" then Error "Not proper ppm format"
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B=Bitmap(x, y)
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x0=x-1
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For y1=y-1 to 0 {
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do {
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Line Input #f, aline$
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} until left$(aline$,1)<>"#"
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flush ' empty stack
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Stack aline$ ' place all values to stack as FIFO
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For x1=0 to x0 {
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\\ now read from stack
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Read red, green, blue
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Call B.setpixel(x1, y1, Color(red, green, blue))
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}
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}
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}
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Close #f
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If valid("B") then Copy 200*twipsx,200*twipsy use B.Image$()
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}
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Checkit
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