164 lines
5.3 KiB
C++
164 lines
5.3 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2019, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file FBXUtil.cpp
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* @brief Implementation of internal FBX utility functions
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*/
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#include "FBXUtil.h"
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#include "FBXTokenizer.h"
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#include <assimp/TinyFormatter.h>
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#include <string>
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#include <cstring>
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#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
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namespace Assimp {
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namespace FBX {
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namespace Util {
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// ------------------------------------------------------------------------------------------------
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const char* TokenTypeString(TokenType t)
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{
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switch(t) {
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case TokenType_OPEN_BRACKET:
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return "TOK_OPEN_BRACKET";
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case TokenType_CLOSE_BRACKET:
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return "TOK_CLOSE_BRACKET";
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case TokenType_DATA:
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return "TOK_DATA";
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case TokenType_COMMA:
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return "TOK_COMMA";
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case TokenType_KEY:
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return "TOK_KEY";
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case TokenType_BINARY_DATA:
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return "TOK_BINARY_DATA";
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}
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ai_assert(false);
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return "";
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}
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// ------------------------------------------------------------------------------------------------
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std::string AddOffset(const std::string& prefix, const std::string& text, unsigned int offset)
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{
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return static_cast<std::string>( (Formatter::format() << prefix << " (offset 0x" << std::hex << offset << ") " << text) );
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}
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// ------------------------------------------------------------------------------------------------
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std::string AddLineAndColumn(const std::string& prefix, const std::string& text, unsigned int line, unsigned int column)
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{
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return static_cast<std::string>( (Formatter::format() << prefix << " (line " << line << " << col " << column << ") " << text) );
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}
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// ------------------------------------------------------------------------------------------------
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std::string AddTokenText(const std::string& prefix, const std::string& text, const Token* tok)
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{
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if(tok->IsBinary()) {
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return static_cast<std::string>( (Formatter::format() << prefix <<
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" (" << TokenTypeString(tok->Type()) <<
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", offset 0x" << std::hex << tok->Offset() << ") " <<
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text) );
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}
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return static_cast<std::string>( (Formatter::format() << prefix <<
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" (" << TokenTypeString(tok->Type()) <<
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", line " << tok->Line() <<
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", col " << tok->Column() << ") " <<
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text) );
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}
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static const uint8_t base64DecodeTable[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, 64, 0, 0,
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0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 0,
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0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0, 0, 0, 0, 0
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};
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uint8_t DecodeBase64(char ch)
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{
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return base64DecodeTable[size_t(ch)];
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}
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size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out)
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{
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if (inLength < 4) {
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out = 0;
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return 0;
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}
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const size_t outLength = (inLength * 3) / 4;
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out = new uint8_t[outLength];
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memset(out, 0, outLength);
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size_t i = 0;
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size_t j = 0;
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for (i = 0; i < inLength - 4; i += 4)
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{
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uint8_t b0 = Util::DecodeBase64(in[i]);
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uint8_t b1 = Util::DecodeBase64(in[i + 1]);
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uint8_t b2 = Util::DecodeBase64(in[i + 2]);
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uint8_t b3 = Util::DecodeBase64(in[i + 3]);
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out[j++] = (uint8_t)((b0 << 2) | (b1 >> 4));
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out[j++] = (uint8_t)((b1 << 4) | (b2 >> 2));
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out[j++] = (uint8_t)((b2 << 6) | b3);
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}
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return outLength;
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}
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} // !Util
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} // !FBX
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} // !Assimp
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#endif
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