Hush screaming code, save a bit of space.
This commit is contained in:
visionmercer
parent
1b664a103a
commit
5a1d279b0a
1 changed files with 354 additions and 354 deletions
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@ -1,389 +1,389 @@
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$CONSOLE
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_SCREENHIDE
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IF COMMAND$ = "" THEN _ECHO "please specify image file to process": SYSTEM 1
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_SCREENSHOW
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$console
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_screenhide
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if command$=""then _echo"please specify image file to process":system 1
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_screenshow
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TYPE Point2D
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X AS LONG
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Y AS LONG
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END TYPE
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type point2d
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x as long
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y as long
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end type
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TYPE statetype
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change AS _BYTE
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levels AS _UNSIGNED _BYTE
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threshold AS _UNSIGNED _BYTE
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mode AS _BYTE
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handle AS LONG
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orgimg AS LONG
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overlay AS LONG
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END TYPE
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type statetype
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change as _byte
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levels as _unsigned _byte
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threshold as _unsigned _byte
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mode as _byte
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handle as long
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orgimg as long
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overlay as long
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end type
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DIM SHARED state AS statetype
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DIM file AS STRING
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DIM SHARED done AS _BYTE
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DIM SHARED mouseclicked AS _BYTE
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DIM SHARED mbd AS _BYTE
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dim shared state as statetype
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dim file as string
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dim shared done as _byte
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dim shared mouseclicked as _byte
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dim shared mbd as _byte
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' Global polygon trace registers
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REDIM SHARED Contour(4999) AS Point2D
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DIM SHARED TotalPoints AS LONG
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redim shared contour(4999) as point2d
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dim shared totalpoints as long
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IF _FILEEXISTS(COMMAND$) THEN file = COMMAND$
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state.orgimg = _LOADIMAGE(file, 32)
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state.handle = _COPYIMAGE(state.orgimg)
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state.overlay = _NEWIMAGE(_WIDTH(state.orgimg), _HEIGHT(state.orgimg), 32)
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if _fileexists(command$) then file=command$
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state.orgimg=_loadimage(file,32)
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state.handle=_copyimage(state.orgimg)
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state.overlay=_newimage(_width(state.orgimg),_height(state.orgimg),32)
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state.levels=10
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state.threshold=127
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updateimage
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SCREEN _NEWIMAGE(_WIDTH(state.orgimg) + 200, _HEIGHT(state.orgimg) + 200, 32)
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screen _newimage(_width(state.orgimg)+200,_height(state.orgimg)+200,32)
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DO UNTIL done
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CLS
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WHILE _MOUSEINPUT: WEND
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mouseclicked = NOT _MOUSEBUTTON(1) AND mbd
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mbd = _MOUSEBUTTON(1)
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do until done
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cls
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while _mouseinput:wend
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mouseclicked=not _mousebutton(1) and mbd
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mbd=_mousebutton(1)
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IF state.change THEN
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if state.change then
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updateimage
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state.change=0
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END IF
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end if
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' Render quantized base image
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_PUTIMAGE (0, 0), state.handle
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_putimage (0,0),state.handle
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' Render the vector transparent overlay shapes on top
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_PUTIMAGE (0, 0), state.overlay
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_putimage (0,0),state.overlay
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' Process interactive trace when clicking inside image viewport
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IF mouseclicked THEN
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DIM clickX AS LONG, clickY AS LONG
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clickX = _MOUSEX
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clickY = _MOUSEY
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if mouseclicked then
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dim clickx as long,clicky as long
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clickx=_mousex
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clicky=_mousey
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' Verify click coordinates are safely within the source image canvas bounding box
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IF clickX >= 0 AND clickX < _WIDTH(state.orgimg) AND clickY >= 0 AND clickY < _HEIGHT(state.orgimg) THEN
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DIM TargetColor AS _UNSIGNED LONG
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if clickx>=0 and clickx<_width(state.orgimg) and clicky>=0 and clicky<_height(state.orgimg) then
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dim targetcolor as _unsigned long
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' Fetch look-up color index from the generated active handle
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_SOURCE state.handle
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TargetColor = POINT(clickX, clickY)
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_SOURCE 0 ' Restore background source monitor pointer
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_source state.handle
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targetcolor=point(clickx,clicky)
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_source 0 ' Restore background source monitor pointer
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' SAFEGUARD 1: Do not attempt to parse pure black background/borders
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IF TargetColor <> _RGB32(0, 0, 0) AND TargetColor <> _RGBA32(0, 0, 0, 0) THEN
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TotalPoints = 0
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TraceContour TargetColor, clickX, clickY
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if targetcolor<>_rgb32(0,0,0) and targetcolor<>_rgba32(0,0,0,0) then
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totalpoints=0
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tracecontour targetcolor,clickx,clicky
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IF TotalPoints >= 3 AND TotalPoints < (_WIDTH(state.orgimg) * _HEIGHT(state.orgimg)) THEN
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REDIM _PRESERVE Contour(TotalPoints - 1) AS Point2D
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SimplifyPolygon
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if totalpoints>=3 and totalpoints<(_width(state.orgimg)*_height(state.orgimg)) then
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redim _preserve contour(totalpoints-1) as point2d
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simplifypolygon
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IF TotalPoints >= 3 THEN
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if totalpoints>=3 then
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' Build flat 1D coordinate matrix map array (X1, Y1, X2, Y2...)
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DIM polyPoints(0 TO (TotalPoints * 2) - 1) AS LONG
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DIM i AS LONG
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DIM clipStr AS STRING
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dim polypoints(0 to (totalpoints*2)-1) as long
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dim i as long
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dim clipstr as string
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clipStr = "fpolygon("
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FOR i = 0 TO TotalPoints - 1
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polyPoints(i * 2) = Contour(i).X
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polyPoints(i * 2 + 1) = Contour(i).Y
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clipstr="fpolygon("
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for i=0 to totalpoints-1
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polypoints(i*2)=contour(i).x
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polypoints(i*2+1)=contour(i).y
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clipStr = clipStr + LTRIM$(STR$(Contour(i).X)) + "," + LTRIM$(STR$(Contour(i).Y))
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IF i < TotalPoints - 1 THEN clipStr = clipStr + ","
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NEXT i
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clipStr = clipStr + ")"
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clipstr=clipstr+ltrim$(str$(contour(i).x))+","+ltrim$(str$(contour(i).y))
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if i<totalpoints-1 then clipstr=clipstr+","
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next i
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clipstr=clipstr+")"
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' Send string array payload safely to system clipboard hardware
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_CLIPBOARD$ = clipStr
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_clipboard$=clipstr
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' Render transparent vector overlay on overlay handler sheet
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DIM oldDest AS LONG
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oldDest = _DEST
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_DEST state.overlay
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dim olddest as long
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olddest=_dest
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_dest state.overlay
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' Render with a semi-transparent green color (Alpha = 100)
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filledpolygon polyPoints(), _RGBA32(0, 255, 0, 100)
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filledpolygon polypoints(),_rgba32(0,255,0,100)
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_DEST oldDest
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END IF
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END IF
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END IF
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END IF
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_dest olddest
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end if
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end if
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end if
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end if
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mouseclicked=0
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END IF
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end if
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ol=state.levels
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ot=state.threshold
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interface
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IF ol <> state.levels THEN state.change = -1
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IF ot <> state.threshold THEN state.change = -1
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if ol<>state.levels then state.change=-1
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if ot<>state.threshold then state.change=-1
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_LIMIT 30
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_DISPLAY
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LOOP
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SYSTEM
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_limit 30
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_display
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loop
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system
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'$include: '../include/ui.bm'
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SUB interface
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IF button(10, _HEIGHT - 34, 60, 23, "exit") THEN done = -1
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COLOR highlightcolor
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_PRINTSTRING (10, _height(state.handle)+10), "levels"
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sub interface
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if button(10,_height-34,60,23,"exit") then done=-1
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color highlightcolor
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_printstring (10,_height(state.handle)+10),"levels"
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state.levels=slider(10,_height(state.handle)+28,100,state.levels*10)/10
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COLOR highlightcolor
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_PRINTSTRING (118, _height(state.handle)+28), STR$(state.levels)
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_PRINTSTRING (10, _height(state.handle)+40), "threshold"
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color highlightcolor
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_printstring (118,_height(state.handle)+28),str$(state.levels)
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_printstring (10,_height(state.handle)+40),"threshold"
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state.threshold=slider(10,_height(state.handle)+58,100,state.threshold/255*100)/100*255
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COLOR highlightcolor
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_PRINTSTRING (118, _height(state.handle)+58), STR$(state.threshold)
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END SUB
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color highlightcolor
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_printstring (118,_height(state.handle)+58),str$(state.threshold)
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end sub
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SUB updateimage
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DIM odest AS LONG
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DIM osource AS LONG
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odest = _DEST
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osource = _SOURCE
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_SOURCE state.orgimg
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_DEST state.handle
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sub updateimage
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dim odest as long
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dim osource as long
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odest=_dest
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osource=_source
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_source state.orgimg
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_dest state.handle
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DIM x AS LONG, y AS LONG, l AS INTEGER
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DIM numSteps AS INTEGER
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dim x as long,y as long,l as integer
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dim numsteps as integer
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IF state.levels < 2 THEN state.levels = 2
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numSteps = state.levels - 1
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if state.levels<2 then state.levels=2
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numsteps=state.levels-1
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FOR y = 0 TO _HEIGHT - 1
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FOR x = 0 TO _WIDTH - 1
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l = luma(POINT(x, y))
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for y=0 to _height-1
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for x=0 to _width-1
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l=luma(point(x,y))
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DIM adjustedL AS SINGLE
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IF state.threshold = 0 OR state.threshold = 255 THEN
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adjustedL = l
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ELSEIF l <= state.threshold THEN
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adjustedL = (l / state.threshold) * 127.5
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ELSE
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adjustedL = 127.5 + ((l - state.threshold) / (255 - state.threshold)) * 127.5
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END IF
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dim adjustedl as single
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if state.threshold=0 or state.threshold=255 then
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adjustedl=l
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elseif l<=state.threshold then
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adjustedl=(l/state.threshold)*127.5
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else
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adjustedl=127.5+((l-state.threshold)/(255-state.threshold))*127.5
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end if
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DIM currentStep AS INTEGER
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currentStep = INT((adjustedL / 256) * state.levels)
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dim currentstep as integer
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currentstep=int((adjustedl/256)*state.levels)
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IF currentStep < 0 THEN currentStep = 0
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IF currentStep > numSteps THEN currentStep = numSteps
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if currentstep<0 then currentstep=0
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if currentstep>numsteps then currentstep=numsteps
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l = INT(currentStep * (255 / numSteps))
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l=int(currentstep*(255/numsteps))
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PSET (x, y), _RGB32(l)
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NEXT x
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NEXT y
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pset (x,y),_rgb32(l)
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next x
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next y
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_SOURCE osource
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_DEST odest
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END SUB
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_source osource
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_dest odest
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end sub
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FUNCTION luma (col AS _UNSIGNED LONG)
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luma = 0.21 * _RED(col) + 0.72 * _GREEN(col) + 0.07 * _BLUE(col)
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END FUNCTION
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function luma (col as _unsigned long)
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luma=0.21*_red(col)+0.72*_green(col)+0.07*_blue(col)
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end function
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' =========================================================================
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' SUBROUTINE: Solid Filled Scanning Polygon Vector Renderer
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' =========================================================================
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SUB filledpolygon (points() AS LONG, col AS LONG)
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DIM i AS INTEGER, j AS INTEGER
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DIM x1 AS SINGLE, y1 AS SINGLE, x2 AS SINGLE, y2 AS SINGLE
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DIM intersectx AS SINGLE
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DIM numpoints AS INTEGER
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numpoints = (UBOUND(points) + 1) \ 2
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sub filledpolygon (points() as long,col as long)
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dim i as integer,j as integer
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dim x1 as single,y1 as single,x2 as single,y2 as single
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dim intersectx as single
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dim numpoints as integer
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numpoints=(ubound(points)+1) \ 2
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DIM intersections(4999) AS SINGLE ' SAFEGUARD 2: Larger intersection limit
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DIM numintersections AS INTEGER
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DIM y AS LONG
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dim intersections(4999) as single ' SAFEGUARD 2: Larger intersection limit
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dim numintersections as integer
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dim y as long
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FOR y = 0 TO _HEIGHT - 1
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for y=0 to _height-1
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numintersections=0
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FOR i = 0 TO numpoints - 1
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for i=0 to numpoints-1
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x1=points(i*2)
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y1=points(i*2+1)
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x2 = points(((i + 1) MOD numpoints) * 2)
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y2 = points(((i + 1) MOD numpoints) * 2 + 1)
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x2=points(((i+1) mod numpoints)*2)
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y2=points(((i+1) mod numpoints)*2+1)
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IF ((y1 > y AND y2 <= y) OR (y2 > y AND y1 <= y)) THEN
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IF y2 - y1 <> 0 THEN
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if ((y1>y and y2<=y) or (y2>y and y1<=y)) then
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if y2-y1<>0 then
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intersectx=x1+(y-y1)*(x2-x1)/(y2-y1)
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' SAFEGUARD 3: Array bounds protection
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IF numintersections <= UBOUND(intersections) THEN
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if numintersections<=ubound(intersections) then
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intersections(numintersections)=intersectx
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numintersections=numintersections+1
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END IF
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END IF
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END IF
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NEXT i
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end if
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end if
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end if
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next i
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FOR i = 0 TO numintersections - 1
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FOR j = i + 1 TO numintersections - 1
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IF intersections(i) > intersections(j) THEN
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SWAP intersections(i), intersections(j)
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END IF
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NEXT j
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NEXT i
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for i=0 to numintersections-1
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for j=i+1 to numintersections-1
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if intersections(i)>intersections(j) then
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swap intersections(i),intersections(j)
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end if
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next j
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next i
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FOR i = 0 TO numintersections - 1 STEP 2
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IF i + 1 < numintersections THEN
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LINE (intersections(i), y)-(intersections(i + 1), y), col
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END IF
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NEXT i
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NEXT y
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END SUB
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for i=0 to numintersections-1 step 2
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if i+1<numintersections then
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line (intersections(i),y)-(intersections(i+1),y),col
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end if
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next i
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next y
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end sub
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' =========================================================================
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' SUBROUTINE: Moore-Neighbor Contour Tracer
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' =========================================================================
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SUB TraceContour (TargColor AS _UNSIGNED LONG, MX AS LONG, MY AS LONG)
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DIM StartX AS LONG, StartY AS LONG
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DIM FoundStart AS _BYTE
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sub tracecontour (targcolor as _unsigned long,mx as long,my as long)
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dim startx as long,starty as long
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dim foundstart as _byte
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DIM oldSource AS LONG
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oldSource = _SOURCE
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_SOURCE state.handle
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dim oldsource as long
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oldsource=_source
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_source state.handle
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DIM y&
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FOR y& = MY TO 0 STEP -1
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IF POINT(MX, y&) <> TargColor THEN
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StartX = MX
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StartY = y& + 1
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FoundStart = -1
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EXIT FOR
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END IF
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NEXT y&
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dim y&
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for y&=my to 0 step -1
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if point(mx,y&)<>targcolor then
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startx=mx
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starty=y&+1
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foundstart=-1
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exit for
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end if
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next y&
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IF NOT FoundStart THEN
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StartX = MX: StartY = MY
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END IF
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if not foundstart then
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startx=mx:starty=my
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end if
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DIM dx(0 TO 7) AS INTEGER
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DIM dy(0 TO 7) AS INTEGER
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dim dx(0 to 7) as integer
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dim dy(0 to 7) as integer
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dx(0)=-1:dx(1)=0:dx(2)=1:dx(3)=1:dx(4)=1:dx(5)=0:dx(6)=-1:dx(7)=-1
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dy(0)=-1:dy(1)=-1:dy(2)=-1:dy(3)=0:dy(4)=1:dy(5)=1:dy(6)=1:dy(7)=0
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DIM CurrentX AS LONG, CurrentY AS LONG
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DIM BacktrackDir AS INTEGER, CheckDir AS INTEGER
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DIM StartBacktrackDir AS INTEGER
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dim currentx as long,currenty as long
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dim backtrackdir as integer,checkdir as integer
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dim startbacktrackdir as integer
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CurrentX = StartX
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CurrentY = StartY
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TotalPoints = 0
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currentx=startx
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currenty=starty
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totalpoints=0
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BacktrackDir = 1
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StartBacktrackDir = 1
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backtrackdir=1
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startbacktrackdir=1
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DIM FirstStep AS _BYTE
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FirstStep = -1
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dim firststep as _byte
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firststep=-1
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' Calculate absolute ceiling area parameter to handle escape routes
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DIM maxAllowedPoints AS LONG
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maxAllowedPoints = _WIDTH(state.handle) * _HEIGHT(state.handle)
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dim maxallowedpoints as long
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maxallowedpoints=_width(state.handle)*_height(state.handle)
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DO
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Contour(TotalPoints).X = CurrentX
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Contour(TotalPoints).Y = CurrentY
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TotalPoints = TotalPoints + 1
|
||||
do
|
||||
contour(totalpoints).x=currentx
|
||||
contour(totalpoints).y=currenty
|
||||
totalpoints=totalpoints+1
|
||||
|
||||
' SAFEGUARD 4: Break if loop gets stuck spinning in empty coordinates
|
||||
IF TotalPoints >= maxAllowedPoints THEN
|
||||
TotalPoints = 0
|
||||
EXIT DO
|
||||
END IF
|
||||
if totalpoints>=maxallowedpoints then
|
||||
totalpoints=0
|
||||
exit do
|
||||
end if
|
||||
|
||||
IF TotalPoints >= UBOUND(Contour) THEN
|
||||
REDIM _PRESERVE Contour(UBOUND(Contour) + 1000) AS Point2D
|
||||
END IF
|
||||
if totalpoints>=ubound(contour) then
|
||||
redim _preserve contour(ubound(contour)+1000) as point2d
|
||||
end if
|
||||
|
||||
CheckDir = (BacktrackDir + 1) MOD 8
|
||||
DIM Steps AS INTEGER
|
||||
Steps = 0
|
||||
checkdir=(backtrackdir+1) mod 8
|
||||
dim steps as integer
|
||||
steps=0
|
||||
|
||||
DO WHILE Steps < 8
|
||||
DIM NX AS LONG, NY AS LONG
|
||||
NX = CurrentX + dx(CheckDir)
|
||||
NY = CurrentY + dy(CheckDir)
|
||||
do while steps<8
|
||||
dim nx as long,ny as long
|
||||
nx=currentx+dx(checkdir)
|
||||
ny=currenty+dy(checkdir)
|
||||
|
||||
IF NX >= 0 AND NX < _WIDTH(state.handle) AND NY >= 0 AND NY < _HEIGHT(state.handle) THEN
|
||||
IF POINT(NX, NY) = TargColor THEN
|
||||
BacktrackDir = (CheckDir + 4) MOD 8
|
||||
CurrentX = NX
|
||||
CurrentY = NY
|
||||
if nx>=0 and nx<_width(state.handle) and ny>=0 and ny<_height(state.handle) then
|
||||
if point(nx,ny)=targcolor then
|
||||
backtrackdir=(checkdir+4) mod 8
|
||||
currentx=nx
|
||||
currenty=ny
|
||||
|
||||
IF FirstStep THEN
|
||||
StartBacktrackDir = BacktrackDir
|
||||
FirstStep = 0
|
||||
END IF
|
||||
EXIT DO
|
||||
END IF
|
||||
END IF
|
||||
if firststep then
|
||||
startbacktrackdir=backtrackdir
|
||||
firststep=0
|
||||
end if
|
||||
exit do
|
||||
end if
|
||||
end if
|
||||
|
||||
CheckDir = (CheckDir + 1) MOD 8
|
||||
Steps = Steps + 1
|
||||
LOOP
|
||||
checkdir=(checkdir+1) mod 8
|
||||
steps=steps+1
|
||||
loop
|
||||
|
||||
IF Steps = 8 THEN EXIT DO
|
||||
if steps=8 then exit do
|
||||
|
||||
LOOP UNTIL (CurrentX = StartX AND CurrentY = StartY AND BacktrackDir = StartBacktrackDir)
|
||||
_SOURCE oldSource
|
||||
END SUB
|
||||
loop until (currentx=startx and currenty=starty and backtrackdir=startbacktrackdir)
|
||||
_source oldsource
|
||||
end sub
|
||||
|
||||
' =========================================================================
|
||||
' SUBROUTINE: SimplifyPolygon
|
||||
' =========================================================================
|
||||
SUB SimplifyPolygon
|
||||
DIM numPoints AS LONG
|
||||
numPoints = TotalPoints
|
||||
sub simplifypolygon
|
||||
dim numpoints as long
|
||||
numpoints=totalpoints
|
||||
|
||||
IF numPoints > 2 THEN
|
||||
IF Contour(numPoints - 1).X = Contour(0).X AND Contour(numPoints - 1).Y = Contour(0).Y THEN
|
||||
numPoints = numPoints - 1
|
||||
END IF
|
||||
END IF
|
||||
if numpoints>2 then
|
||||
if contour(numpoints-1).x=contour(0).x and contour(numpoints-1).y=contour(0).y then
|
||||
numpoints=numpoints-1
|
||||
end if
|
||||
end if
|
||||
|
||||
IF numPoints < 3 THEN EXIT SUB
|
||||
if numpoints<3 then exit sub
|
||||
|
||||
DIM temp(0 TO numPoints - 1) AS Point2D
|
||||
DIM keepCount AS LONG
|
||||
dim temp(0 to numpoints-1) as point2d
|
||||
dim keepcount as long
|
||||
|
||||
temp(0) = Contour(0)
|
||||
keepCount = 1
|
||||
temp(0)=contour(0)
|
||||
keepcount=1
|
||||
|
||||
DIM i AS LONG
|
||||
FOR i = 1 TO numPoints - 1
|
||||
DIM prevIdx AS LONG: prevIdx = i - 1
|
||||
DIM nextIdx AS LONG: nextIdx = i + 1
|
||||
IF nextIdx > numPoints - 1 THEN nextIdx = 0
|
||||
dim i as long
|
||||
for i=1 to numpoints-1
|
||||
dim previdx as long:previdx=i-1
|
||||
dim nextidx as long:nextidx=i+1
|
||||
if nextidx>numpoints-1 then nextidx=0
|
||||
|
||||
DIM dx1 AS SINGLE: dx1 = Contour(i).X - Contour(prevIdx).X
|
||||
DIM dy1 AS SINGLE: dy1 = Contour(i).Y - Contour(prevIdx).Y
|
||||
DIM dx2 AS SINGLE: dx2 = Contour(nextIdx).X - Contour(i).X
|
||||
DIM dy2 AS SINGLE: dy2 = Contour(nextIdx).Y - Contour(i).Y
|
||||
dim dx1 as single:dx1=contour(i).x-contour(previdx).x
|
||||
dim dy1 as single:dy1=contour(i).y-contour(previdx).y
|
||||
dim dx2 as single:dx2=contour(nextidx).x-contour(i).x
|
||||
dim dy2 as single:dy2=contour(nextidx).y-contour(i).y
|
||||
|
||||
DIM crossProduct AS SINGLE
|
||||
crossProduct = (dx1 * dy2) - (dy1 * dx2)
|
||||
dim crossproduct as single
|
||||
crossproduct=(dx1*dy2)-(dy1*dx2)
|
||||
|
||||
IF ABS(crossProduct) > 0.05 THEN
|
||||
temp(keepCount) = Contour(i)
|
||||
keepCount = keepCount + 1
|
||||
END IF
|
||||
NEXT i
|
||||
if abs(crossproduct)>0.05 then
|
||||
temp(keepcount)=contour(i)
|
||||
keepcount=keepcount+1
|
||||
end if
|
||||
next i
|
||||
|
||||
IF keepCount >= 3 THEN
|
||||
REDIM Contour(keepCount - 1) AS Point2D
|
||||
FOR i = 0 TO keepCount - 1
|
||||
Contour(i) = temp(i)
|
||||
NEXT i
|
||||
TotalPoints = keepCount
|
||||
ELSE
|
||||
REDIM Contour(numPoints - 1) AS Point2D
|
||||
FOR i = 0 TO numPoints - 1
|
||||
Contour(i) = temp(i)
|
||||
NEXT i
|
||||
TotalPoints = numPoints
|
||||
END IF
|
||||
END SUB
|
||||
if keepcount>=3 then
|
||||
redim contour(keepcount-1) as point2d
|
||||
for i=0 to keepcount-1
|
||||
contour(i)=temp(i)
|
||||
next i
|
||||
totalpoints=keepcount
|
||||
else
|
||||
redim contour(numpoints-1) as point2d
|
||||
for i=0 to numpoints-1
|
||||
contour(i)=temp(i)
|
||||
next i
|
||||
totalpoints=numpoints
|
||||
end if
|
||||
end sub
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue