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/*  FBXUtil.h                                                            */
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/*
Open Asset Import Library (assimp)
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Copyright (c) 2006-2019, assimp team


All rights reserved.

Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:

* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* 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.

* Neither the name of the assimp team, nor the names of its
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  derived from this software without specific prior
  written permission of the assimp team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/** @file  FBXUtil.h
 *  @brief FBX utility functions for internal use
 */
#ifndef FBX_UTIL_H
#define FBX_UTIL_H

#include "FBXTokenizer.h"
#include <stdint.h>

namespace FBXDocParser {

namespace Util {

/** Get a string representation for a #TokenType. */
const char *TokenTypeString(TokenType t);

/** Decode a single Base64-encoded character.
*
*  @param ch Character to decode (from base64 to binary).
*  @return decoded byte value*/
uint8_t DecodeBase64(char ch);

/** Compute decoded size of a Base64-encoded string
*
*  @param in Characters to decode.
*  @param inLength Number of characters to decode.
*  @return size of the decoded data (number of bytes)*/
size_t ComputeDecodedSizeBase64(const char *in, size_t inLength);

/** Decode a Base64-encoded string
*
*  @param in Characters to decode.
*  @param inLength Number of characters to decode.
*  @param out Pointer where we will store the decoded data.
*  @param maxOutLength Size of output buffer.
*  @return size of the decoded data (number of bytes)*/
size_t DecodeBase64(const char *in, size_t inLength, uint8_t *out, size_t maxOutLength);

char EncodeBase64(char byte);

/** Encode bytes in base64-encoding
*
*  @param data Binary data to encode.
*  @param inLength Number of bytes to encode.
*  @return base64-encoded string*/
std::string EncodeBase64(const char *data, size_t length);

} // namespace Util
} // namespace FBXDocParser

#endif // FBX_UTIL_H
