libcan.a: support for creation+manipulation of canvases; DT: src/haeberli/libcan/

libcan.a : support for creation & manipulation of canvases

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The following list represents the modules comprising libcan.a
Following the list are each module's header files and exported functions.

For quick lookup, there is also an alphabetic listing or a listing-by-file of exported functions.

 GO  TO        GO TO headers/exports description (below in this document)
  FILE

canblend.c:  blend rows and columns into the canvas
canbrush.c:  draw a brush onto the canvas
candisp.c:   display parts of a canvas onto the screen
candraw.c:   draw points, lines, rectangles and texture maps onto a canvas
canfile.c:   read and write canvases on stdin and stdout
canhist.c:   histogram operations for canvases
canmap.c:    support arbitrary color transforms on canvases
canmisc.c:   miscellaneous operations
canop.c:     apply global operations to canvases
canpaint.c:  paint brush strokes into the canvas
cantext.c:   draw points, lines, rectangles and texture maps onto a canvas
canundo.c:   support undo on canvases
canvas.c:    basic support for creation an manipulation of canvases
mypercent.c: included so things work correctly...

NOTES ON MODULES IN LIBCAN.A

______________________________________________________________
canblend.c: blend rows and columns into the canvas


#include "stdio.h"


#include "canvas.h"


#include "lum.h"


        void (*constblendrow)()
	

        void (*blendrow)()
	

        void (*blendcol)()
	

        void beginstroke()
	

        void endstroke()
	

        void setnegalpha(v)
	

        void setclonemode(c)
	

        void setcurcolor(c)
	

        unsigned long getcurcolor()
	

        void avg_clear()
	

        long avg_get()
	

        void clonesource(c,dx,dy)
	

        void readpix_init()
	

        void setblend(b)
	

        int getblend()

______________________________________________________________
canbrush.c: draw a brush onto the canvas


#include "values.h"


#include "math.h"


#include "stdio.h"


#include "canvas.h"


        void drawbrush(dest,fx,fy)
        

        void getcircpos(x,y)
        

        float qrand()
        

        int getqrandstate()
        

        void setqrandstate(s)
        

        setcurwidth(w)

______________________________________________________________
candisp.c: display parts of a canvas onto the screen


#include "gl.h"


#include "canvas.h"


#include "vect.h"


#include "rch.h"


#include "math.h"


        int paintpos(xpos,ypos,pos,strokeno,minm,maxm)
        

        void displaysetup(drct,scan,sx,sy)
        

        void displaycanvas(c)
        

        void setrgbmode(rgb)
        

        void setcurzoom(z)
        

        int getcurzoom()
        

        float getzoomfactor()
        

        void drawcanborder(c)
        

        canvas *screentoscanvas(x1,y1,x2,y2)

______________________________________________________________
candraw.c: draw points, lines, rectangles and texture maps onto a canvas


#include "values.h"


#include "math.h"


#include "canvas.h"


#include "texture.h"


#include "izoom.h"


#include "polyscan.h"


        void setalphascale(s)
	

        void setalpha(a)
	

        void drawapoint(c,x,y)
	

        void drawaaline(c,x1,y1,x2,y2)
	

        void canbeginscan(c,supersample)
	

        void canvertex(x,y)
	

        void cannextfacet()
	

        void canendscan()

______________________________________________________________
canfile.c: read and write canvases on stdin and stdout


#include "stdio.h"


#include "canvas.h"


        void canvastofile(c,f)
	

        canvas *filetocanvas(f)

______________________________________________________________
canhist.c: histogram operations for canvases


#include "stdio.h"


#include "math.h"


#include "values.h"


#include "canvas.h"


#include "hist.h"


        hist *canvashist(c,channo)
        

        void canpercenthist(c, fmin, fmax)

______________________________________________________________
canmap.c: support arbitrary color transforms on canvases


#include "stdio.h"


#include "canvas.h"


#include "math.h"


#include "izoom.h"


#include "vect.h"


#include "lum.h"


        canmap *makecanmap(transfunc,levels)
	

        void freecanmap(map)
	

        void applycanmap(c,map)

______________________________________________________________
canmisc.c: miscellaneous operations


#include "stdio.h"


#include "canvas.h"


#include "math.h"


#include "lum.h"


        void onefield(c,fieldno)
	

        void fieldfilter(c,thresh)
	

        void blendcanvas(a,b,c,f)
	

        void diffcanvas(a,b,c)

______________________________________________________________
canop.c: apply global operations to canvases


#include "stdio.h"


#include "values.h"


#include "canvas.h"


#include "math.h"


#include "izoom.h"


#include "lum.h"


#include "lut.h"


        void bwonly(mode)
	

        void canvasop(c,opfunc,arg1,arg2,arg3)
        
        void saturateop(pptr,n,sat,dum1,dum2)
	

        void copyred(pptr,n,dum1,dum2,dum3)
	

        void imgexpop(pptr,n,min,max,dum1)
	

        void gammaop(pptr,n,gam,dum1,dum2)
	

        void cscaleop(pptr,n,rscale,gscale,bscale)
	

        void invertop(pptr,n)
	

        void addnoiseop(pptr,n,mag)
	

        void quantop(pptr,n,nsteps)
	

        void duotoneop(pptr,n,rval,gval,bval)
	

        void zapop(pptr,n)

canvas *makestamp(c,maxxsize,maxysize,filter) void randcopy(orig,dest) void canvastile(tile,dest) void convolve3(src,dest,mat)

______________________________________________________________
canpaint.c: paint brush strokes into the canvas


#include "math.h"


#include "canvas.h"


#include "texture.h"


        void drawaline(c,x,y)
        

        void drawscatter(c,x,y)
        

        void drawlongscatter(c,x,y)
        

        void drawmultiline(c,x,y)

void mysincos(a,s,c) void setangle(a) void setangledelta(dx,dy) void setrectsize(dx,dy) void drawarect(c,x,y,tm)

______________________________________________________________
cantext.c: raw points, lines, rectangles and texture maps onto a canvas


#include "stdio.h"


#include "math.h"


#include "canvas.h"


#include "objfnt.h"


#include "polyscan.h"


        void drawtext(c,fnt,mat,xpos,ypos,string)

______________________________________________________________
canundo.c: support undo on canvases


#include "stdio.h"


#include "canvas.h"


#include "chunkarena.h"


        void freeundo(c)
        

        void addundo(c)

void saverect(c,r) void undopaint(c) void clearundo(c)

______________________________________________________________
canvas.c: basic support for creation an manipulation of canvases


#include "stdio.h"


#include "canvas.h"


#include "vect.h"


#include "izoom.h"


#include "math.h"


#include "resource.h"


#include "image.h"


        void canvascopy(c,cc)
        

        void touchcanvas(c)
        

        void copycanvas(scan,srct,dcan,drct,filter)
        

        int round(v)
        

        void initcanvas(c,xsize,ysize)
        

        canvas *newcanvas(xsize,ysize)
        

        canvas *imagetocanvas(name)
        

        canvas *crudeimagetocanvas(name)
        

        int canvastoimage(c,name)
        

        void freecanvas(c)
        

        canvas *clonecanvas(c)
        

        void canvasflushfunc(c,func)
        

        void flushcanvas(c)
        

        unsigned long samplecanvas(c,pos,dofilter)
        

        void markdirty(c,r,add)
        

        void clearcanvas(c)
        

        void framecanvas(c)
        

        void copyto(scan,dcan)
        

        canvas *subcanvas(c,x1,x2,y1,y2)
        

        void printcanvas(c)

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