Files
linguist/samples/Monkey/encodeToPng.monkey2
DoctorWhoof a4e6fc78c8 Added a few Monkey2 examples (#3811)
* Added Monkey2 (extension .monkey2) example

This compiles with the most up to date Monkey2 release (V1.1.06).

* Sorting example in Monkey2

* Add files via upload

* Gui example using the MojoX module
2018-01-11 09:23:54 +00:00

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#Import "<std>"
Using std..
'Set your own path here. Defaults to build folder.
Global path:= AppDir() + "encodeToPng.png"
Function Main()
'Write from PixMap
Local source := New Pixmap( 100, 100 )
For Local y := 0 Until source.Width
For Local x := 0 Until source.Height
'Generates random pixels
source.SetPixelARGB( x, y, ARGB( 255, Rnd(0, 255), 0, Rnd(0, 255) ) )
Next
Next
source.Save( path )
'Read from png to PixMap
Local dest := Pixmap.Load( path )
Local a := ""
Local r := ""
Local g := ""
Local b := ""
For Local y := 0 Until dest.Width
For Local x := 0 Until source.Height
Local argb := dest.GetPixelARGB(x,y)
a += ARGBToAlpha( argb ) + " "
r += ARGBToRed( argb ) + " "
g += ARGBToGreen( argb ) + " "
b += ARGBToBlue( argb ) + " "
Next
a += "~n"
r += "~n"
g += "~n"
b += "~n"
Next
'Print resulting pixels
Print( " ~nAlpha:~n" + a )
Print( " ~nRed:~n" + r )
Print( " ~nGreen:~n" + g )
Print( " ~nBlue:~n" + b )
End
'**************** Color Functions ****************
Function ARGB:UInt( a:Float, r:Float, g:Float, b:Float )
Assert ( a<=1.0, "Alpha max value is 1.0" )
Assert ( r<=1.0, "Red max value is 1.0" )
Assert ( g<=1.0, "Green max value is 1.0" )
Assert ( b<=1.0, "Blue max value is 1.0" )
Return UInt(a*255) Shl 24 | UInt(r*255) Shl 16 | UInt(g*255) Shl 8 | UInt(b*255)
End
Function ARGB:UInt( a:Int, r:Int, g:Int, b:Int )
Assert ( a<256, "Alpha can't be higher than 255" )
Assert ( r<256, "Red can't be higher than 255" )
Assert ( g<256, "Green can't be higher than 255" )
Assert ( b<256, "Blue can't be higher than 255" )
Return( a Shl 24 | r Shl 16 | g Shl 8 | b )
End
Function ARGBToAlpha:Int( argb:UInt )
Return argb Shr 24 & $ff
End
Function ARGBToRed:Int( argb:UInt )
Return argb Shr 16 & $ff
End
Function ARGBToGreen:Int( argb:UInt )
Return argb Shr 8 & $ff
End
Function ARGBToBlue:Int( argb:UInt )
Return argb & $ff
End