#include "GLCanvasFImage.h"
#include "JEDUtil.h"
#include <stdio.h>

FImage *MakeFImageFromGLCanvas(GLCanvas *canvas)
{
FImage *fimage=new FImage(canvas->width,canvas->height);

CopyGLCanvasIntoFImage(canvas,fimage);
return fimage;
}

GLCanvas *MakeGLCanvasFromFImage(FImage *fimage)
{
puts ("Not Implemented");
return NULL;
}

void CopyFImageIntoGLCanvas(FImage *fi, GLCanvas *canvas)
{
if (fi==NULL || canvas==NULL) return;
int xsize;
int ysize;
unsigned int* pix;

xsize=MIN(fi->fXSize,canvas->width);
ysize=MIN(fi->fYSize,canvas->height);

pix=canvas->pixels;

for (int y=0;y<ysize;y++)
	for (int x=0;x<xsize;x++)
		{
		unsigned char c;
		c=(unsigned char )MIN(MAX(fi->Pix(x,y),0),255);
		*pix = 0xFF<<24 | c<<16 | c<<8 | c<<0;
//		printf ("%f %d %x\n",fi->Pix(x,y),c, *pix);
		pix++;
		}

}

void CopyGLCanvasIntoFImage(GLCanvas *canvas, FImage *fi)
{
if (fi==NULL || canvas==NULL) return;
int xsize;
int ysize;
unsigned int* pix;
float val;

xsize=MIN(fi->fXSize,canvas->width);
ysize=MIN(fi->fYSize,canvas->height);

pix=canvas->pixels;

for (int y=0;y<ysize;y++)
	for (int x=0;x<xsize;x++)
		{
 		val= ((0xFF & *pix) + (0x00FF & *pix) + (0x0000FF & *pix))/3.0;		
		fi->Pix(x,y)= val;
//		printf ("%f\n",fi->Pix(x,y));
		pix++;
		}
}