Init.HEADmaster

1 files changed, 55 insertions, 0 deletions

diff --git a/hw6/src/sceneIO_texture.cpp b/hw6/src/sceneIO_texture.cpp
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+++ b/hw6/src/sceneIO_texture.cpp
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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;
+}