/******************************************************************/
/* This file is part of the homework assignments for CSCI-427/527 */
/* at The College of William & Mary and authored by Pieter Peers. */
/* No part of this file, whether altered or in original form, can */
/* be distributed or used outside the context of CSCI-427/527     */
/* without consent of either the College of William & Mary or     */
/* Pieter Peers.                                                  */
/******************************************************************/
#include "util.h"
#include "imageIO.h"
#include "imageIO.ppm.h"
#include "imageIO.pfm.h"
#include "errorMessage.h"


////////////
// Import //
////////////
void importImage(const std::string& name, image& img)
{
  // get extension
  std::string ext = getExtension(name);
  if(ext == "") errorMessage("Unable to determine extension in '%s'.", name.c_str());

  // call image format handler based on extension
  if(ext == "PPM" || ext == "ppm") importPPM(name, img);
  else if(ext == "PFM" || ext == "pfm") importPFM(name, img);
  else errorMessage("Unknown image format: '%s'.", ext.c_str());
}


////////////
// Export //
////////////
void exportImage(const std::string& name, const image& img)
{
  // get extension
  std::string ext = getExtension(name);
  if(ext == "") errorMessage("Unable to determine extension in '%s'.", name.c_str());

  // call image format handler based on extension
  if(ext == "PPM" || ext == "ppm") exportPPM(name, img);
  else if(ext == "PFM" || ext == "pfm") exportPFM(name, img);
  else errorMessage("Unknown image format: '%s'.", ext.c_str());
}