RosettaCodeData/Task/Bitmap/M2000-Interpreter/bitmap-1.m2000

103 lines
3.9 KiB
Plaintext

Module Checkit {
Function Bitmap (x as long, y as long) {
if x<1 or y<1 then Error "Wrong dimensions"
structure rgb {
red as byte
green as byte
blue as byte
}
m=len(rgb)*x mod 4
if m>0 then m=4-m ' add some bytes to raster line
m+=len(rgb) *x
Structure rasterline {
{
pad as byte*m
}
\\ union pad+hline
hline as rgb*x
}
Structure Raster {
magic as integer*4
w as integer*4
h as integer*4
lines as rasterline*y
}
Buffer Clear Image1 as Raster
\\ 24 chars as header to be used from bitmap render build in functions
Return Image1, 0!magic:="cDIB", 0!w:=Hex$(x,2), 0!h:=Hex$(y, 2)
\\ fill white (all 255)
\\ Str$(string) convert to ascii, so we get all characters from words width to byte width
Return Image1, 0!lines:=Str$(String$(chrcode$(255), Len(rasterline)*y))
Buffer Clear Pad as Byte*4
SetPixel=Lambda Image1, Pad,aLines=Len(Raster)-Len(Rasterline), blines=-Len(Rasterline) (x, y, c) ->{
where=alines+3*x+blines*y
if c>0 then c=color(c)
c-!
Return Pad, 0:=c as long
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
}
GetPixel=Lambda Image1,aLines=Len(Raster)-Len(Rasterline), blines=-Len(Rasterline) (x,y) ->{
where=alines+3*x+blines*y
=color(Eval(image1, where+2 as byte), Eval(image1, where+1 as byte), Eval(image1, where as byte))
}
StrDib$=Lambda$ Image1, Raster -> {
=Eval$(Image1, 0, Len(Raster))
}
CopyImage=Lambda Image1 (image$) -> {
if left$(image$,12)=Eval$(Image1, 0, 24 ) Then {
Return Image1, 0:=Image$
} Else Error "Can't Copy Image"
}
Export2File=Lambda Image1, x, y, r=len(rasterline) (f) -> {
\\ use this between open and close
Print #f, "P3"
Print #f,"# Created using M2000 Interpreter"
Print #f, x;" ";y
Print #f, 255
x2=x-1
For y1= y-1 to 0 {
a$=""
where=24+r*y1
x1=0
Print #f, Eval(Image1, where +2 as byte);" ";
Print #f, Eval(Image1, where+1 as byte);" ";
Print #f, Eval(Image1, where as byte);
where+=3
For x1=1 to x2 {
Print #f, " ";Eval(Image1, where +2 as byte);" ";
Print #f, Eval(Image1, where+1 as byte);" ";
Print #f, Eval(Image1, where as byte);
where+=3
}
Print #f
}
}
Group Bitmap {
SetPixel=SetPixel
GetPixel=GetPixel
Image$=StrDib$
Copy=CopyImage
ToFile=Export2File
}
=Bitmap
}
A=Bitmap(150,100)
For i=0 to 98 {
Call A.SetPixel(i, i, 5)
Call A.SetPixel(99, i, color(128,0,255))
}
Call A.SetPixel(i,i,0)
Call A.SetPixel(30,50, color(128,0,255))
Print A.GetPixel(30,50)=color(128,0,255)
move 3000, 3000
Image A.image$()
profiler
Open "A2.PPM" for Output as #F
Call A.ToFile(F)
Close #f
print timecount
}
Checkit