vtkGLTFUtils.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkGLTFUtils.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
 
#ifndef vtkGLTFUtils_h
#define vtkGLTFUtils_h
 
#include "vtk_jsoncpp_fwd.h" // For Json forward declaration
 
#include <string> // For string
#include <vector> // For vector
 
namespace vtkGLTFUtils
{
using ChunkInfoType = std::pair<std::string, uint32_t>;
// Binary glTF constants
const uint32_t GLBWordSize = 4;
const uint32_t GLBHeaderSize = 12;
const uint32_t GLBChunkHeaderSize = 8;
const uint32_t GLBVersion = 2;
 
bool ValidateGLBFile(const std::string& magic, uint32_t version, uint32_t fileLength,
  std::vector<vtkGLTFUtils::ChunkInfoType> chunkInfo);
 
bool ExtractGLBFileInformation(const std::string& fileName, std::string& magic, uint32_t& version,
  uint32_t& fileLength, std::vector<vtkGLTFUtils::ChunkInfoType>& chunkInfo);
 
bool GetIntValue(const Json::Value& root, int& value);
 
bool GetUIntValue(const Json::Value& root, unsigned int& value);
 
bool GetDoubleValue(const Json::Value& root, double& value);
 
bool GetStringValue(const Json::Value& root, std::string& value);
 
bool GetBoolValue(const Json::Value& root, bool& value);
 
bool GetIntArray(const Json::Value& root, std::vector<int>& value);
 
bool GetUIntArray(const Json::Value& root, std::vector<unsigned int>& value);
 
bool GetFloatArray(const Json::Value& root, std::vector<float>& value);
 
bool GetDoubleArray(const Json::Value& root, std::vector<double>& value);
 
bool CheckVersion(const Json::Value& glTFAsset);
 
std::string GetResourceFullPath(const std::string& resourcePath, const std::string& glTFFilePath);
 
bool GetBinaryBufferFromUri(const std::string& uri, const std::string& glTFFileName,
  std::vector<char>& buffer, size_t bufferSize);
 
std::string GetDataUriMimeType(const std::string& uri);
}
 
#endif
 
// VTK-HeaderTest-Exclude: vtkGLTFUtils.h