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/******************************************************************/
/* 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 "sceneIO_core.h"
#include "sceneIO_texture.h"
#include "util.h"
#include "imageIO.h"
#include "nearestTexture.h"
#include "bilinearTexture.h"
std::shared_ptr<texture_base> importTexture(const XMLNode& node, nodeCache<texture_base>& texture_cache, const std::string& rootDir)
{
// check if texture
if(!node.isValid() || node.name() != "texture") return std::shared_ptr<texture_base>(nullptr);
// get attributes
std::string type = getString(node, "type", "nearest");
std::string filename = getString(node, "filename");
bool repeatTexture = (getString(node, "repeatTexture", "false") == "false");
// sanity check
if(filename == "")
errorMessage("Missing texture 'filename'.");
// get full filename
std::string path = getDirectory(filename);
if(path == "") filename = rootDir + filename;
// get key name
std::string key = filename + "#" + type;
if(repeatTexture) key += "Repeat";
// check cache
if(std::shared_ptr<texture_base> ctexture = texture_cache.get(key))
return ctexture;
// create based on type
std::shared_ptr<texture_base> texture;
if(type == "nearest") texture = std::shared_ptr<texture_base>( new nearestTexture(repeatTexture));
else if(type == "bilinear") texture = std::shared_ptr<texture_base>( new bilinearTexture(repeatTexture) );
else errorMessage("Unknown texture type (%s).", type.c_str());
// load and add texture to cache
importImage(filename, *texture);
texture_cache.add(key, texture);
// Done.
return texture;
}
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