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/*******************************************************************************
Copyright (c) 2012, Jonathan Hiller
This file is part of the AMF Tools suite. http://amf.wikispaces.com/
AMF Tools is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
AMF Tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
See <http://www.opensource.org/licenses/lgpl-3.0.html> for license details.
*******************************************************************************/
#ifndef NTEXTURE_H
#define NTEXTURE_H
#include <string>
#include <vector>
class CXmlStreamWrite;
class CXmlStreamRead;
class nAmf;
enum TexType {TT_GRAYSCALE};
static const std::string base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
class nTexture
{
public:
nTexture(nAmf* pnAmfIn);
~nTexture();
nTexture(const nTexture& In) {*this = In;} //copy constructor
nTexture& operator=(const nTexture& In); //overload Equals
void Clear(void); //clears all data
//XML read/write
bool WriteXML(CXmlStreamWrite* pXML, std::string* pMessage = 0);
bool ReadXML(CXmlStreamRead* pXML, nAmf* pAmf, bool StrictLoad=true, std::string* pMessage = 0);
bool CheckValid(nAmf* pAmf, bool FixNode=true, std::string* pMessage = 0);
//required attributes
int aID, aWidth, aHeight, aDepth;
TexType Type;
bool aTiled;
//required data
std::vector<unsigned char> BinaryData; //this must be converted to base 64 before writing to xml.
//utility functions
std::string DataToBase64(void) {return ToBase64(BinaryData.data(), BinaryData.size());} //converts data to base 64 for writing to XML
bool Base64ToData(std::string inputBase64); //converts base 64 to data. returns false if not valid B64 data
void GetSize(int* WidthOut, int* HeightOut, int* DepthOut = NULL) {*WidthOut = aWidth; *HeightOut = aHeight; if (DepthOut) *DepthOut = aDepth;}
static inline bool is_base64(unsigned char c) {return (isalnum(c) || (c == '+') || (c == '/'));}
std::string ToBase64(unsigned char const* , unsigned int len);
std::string FromBase64(std::string const& s);
double GetValue(double uIn, double vIn, double wIn = 0);
nAmf* pnAmf; //need to keep pointer to parent AMF
};
#endif //NTEXTURE_H
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