Kearwood Gilbert
ebb54fd441
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Load and parse gltf json data.
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//
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// KRResource+gltf.cpp
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// Kraken Engine
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//
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// Copyright 2025 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KREngine-common.h"
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#include "KRResource.h"
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#include "bundle/KRBundle.h"
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#include "scene/KRScene.h"
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#include "mimir.h"
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using namespace mimir;
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using namespace hydra;
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#include "simdjson.h"
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using namespace simdjson;
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KRBundle* LoadGltf(KRContext& context, Block& jsonData, Block& binData, const std::string& baseName)
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{
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simdjson::dom::parser parser;
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simdjson::dom::element jsonRoot;
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jsonData.lock();
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auto error = parser.parse((const char*)jsonData.getStart(), jsonData.getSize()).get(jsonRoot);
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jsonData.unlock();
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if (error) {
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// TODO - Report and handle error
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return nullptr;
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}
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std::string_view version;
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error = jsonRoot["asset"]["version"].get(version);
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if (error) {
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// TODO - Report and handle error
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return nullptr;
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}
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KRScene* pScene = new KRScene(context, baseName + "_scene");
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KRBundle* bundle = new KRBundle(context, baseName);
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context.getSceneManager()->add(pScene);
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KrResult result = pScene->moveToBundle(bundle);
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// TODO - Validate result
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bundle->append(*pScene);
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return bundle;
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}
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KRBundle* KRResource::LoadGltf(KRContext& context, const std::string& path)
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{
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std::string filePath = util::GetFilePath(path);
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std::string fileBase = util::GetFileBase(path);
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std::string binFilePath = filePath + fileBase + ".bin";
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Block jsonData;
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Block binData;
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if (!jsonData.load(path)) {
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return nullptr;
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}
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if (!binData.load(binFilePath)) {
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return nullptr;
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}
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return ::LoadGltf(context, jsonData, binData, fileBase);
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}
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