GLTF import scaffolding

kraken/resources/KRResource+gltf.cpp

@@ -0,0 +1,71 @@
+//
+//  KRResource+gltf.cpp
+//  Kraken Engine
+//
+//  Copyright 2025 Kearwood Gilbert. All rights reserved.
+//  
+//  Redistribution and use in source and binary forms, with or without modification, are
+//  permitted provided that the following conditions are met:
+//  
+//  1. Redistributions of source code must retain the above copyright notice, this list of
+//  conditions and the following disclaimer.
+//  
+//  2. Redistributions in binary form must reproduce the above copyright notice, this list
+//  of conditions and the following disclaimer in the documentation and/or other materials
+//  provided with the distribution.
+//  
+//  THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
+//  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+//  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
+//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+//  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+//  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+//  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+//  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//  
+//  The views and conclusions contained in the software and documentation are those of the
+//  authors and should not be interpreted as representing official policies, either expressed
+//  or implied, of Kearwood Gilbert.
+//
+
+#include "KREngine-common.h"
+
+#include "KRResource.h"
+#include "bundle/KRBundle.h"
+#include "scene/KRScene.h"
+
+#include "mimir.h"
+
+using namespace mimir;
+using namespace hydra;
+
+KRBundle* LoadGltf(KRContext& context, const Block& jsonData, const Block& binData, const std::string& baseName)
+{
+  KRScene* pScene = new KRScene(context, baseName + "_scene");
+  KRBundle* bundle = new KRBundle(context, baseName);
+
+  context.getSceneManager()->add(pScene);
+  KrResult result = pScene->moveToBundle(bundle);
+  // TODO - Validate result
+  bundle->append(*pScene);
+  return bundle;
+}
+
+KRBundle* KRResource::LoadGltf(KRContext& context, const std::string& path)
+{
+  std::string filePath = util::GetFilePath(path);
+  std::string fileBase = util::GetFileBase(path);
+  std::string binFilePath = filePath + fileBase + ".bin";
+
+  Block jsonData;
+  Block binData;
+  if (!jsonData.load(path)) {
+    return nullptr;
+  }
+  if (!binData.load(binFilePath)) {
+    return nullptr;
+  }
+
+  return ::LoadGltf(context, jsonData, binData, fileBase);
+}