#include <stdio.h>
#include "pic.H"
#include "dkcolor.h"  // this file defines COLOR; may interfere with rpk's COLOR!

PicOutputHandle::
PicOutputHandle (char *filename, int w, int h)
{
  ImageOutputHandle::init("high dynamic range PIC", w, h);
  
  if ((pic = fopen (filename, "wb")) == NULL)
  {
    fprintf(stderr, "Can't open PIC output");
    return;
  }
  
  writeHeader ();
}

PicOutputHandle::
~PicOutputHandle ()
{
  if (pic) fclose (pic);
  pic=NULL;
}

// writes scanline of high-dynamic range radiance data in RGB format
int PicOutputHandle::
WriteRadianceRGB(float *rgbrad)
{
  int result = 0;
  
  if (pic)
    result = fwritescan ((COLOR *) rgbrad, width, pic);
  
  if(result)
	return width;
  else
	return 0; // We don't know how many pixels were actually written
}

void PicOutputHandle::
writeHeader ()
{
  // simple RADIANCE header
  fprintf (pic, "#?RADIANCE\n");
  fprintf (pic, "#RPK PicOutputHandler (compiled %s)\n", __DATE__);
  fprintf (pic, "FORMAT=32-bit_rle_rgbe\n");
  fprintf (pic, "\n");
  fprintf (pic, "-Y %d +X %d\n", height, width);
}