265 lines
9.3 KiB
C++
265 lines
9.3 KiB
C++
/**************************************************************************/
|
|
/* FBXParser.h */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
/*
|
|
Open Asset Import Library (assimp)
|
|
----------------------------------------------------------------------
|
|
|
|
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
|
|
contributors may be used to endorse or promote products
|
|
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
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
----------------------------------------------------------------------
|
|
*/
|
|
|
|
/** @file FBXParser.h
|
|
* @brief FBX parsing code
|
|
*/
|
|
|
|
#ifndef FBXPARSER_H
|
|
#define FBXPARSER_H
|
|
|
|
#include <stdint.h>
|
|
#include <map>
|
|
#include <memory>
|
|
|
|
#include "core/color.h"
|
|
#include "core/math/transform.h"
|
|
#include "core/math/vector2.h"
|
|
#include "core/math/vector3.h"
|
|
|
|
#include "FBXTokenizer.h"
|
|
|
|
namespace FBXDocParser {
|
|
|
|
class Scope;
|
|
class Parser;
|
|
class Element;
|
|
|
|
typedef Element *ElementPtr;
|
|
typedef Scope *ScopePtr;
|
|
|
|
typedef std::vector<ScopePtr> ScopeList;
|
|
typedef std::multimap<std::string, ElementPtr> ElementMap;
|
|
typedef std::pair<ElementMap::const_iterator, ElementMap::const_iterator> ElementCollection;
|
|
|
|
#define new_Scope new Scope
|
|
#define new_Element new Element
|
|
|
|
/** FBX data entity that consists of a key:value tuple.
|
|
*
|
|
* Example:
|
|
* @verbatim
|
|
* AnimationCurve: 23, "AnimCurve::", "" {
|
|
* [..]
|
|
* }
|
|
* @endverbatim
|
|
*
|
|
* As can be seen in this sample, elements can contain nested #Scope
|
|
* as their trailing member. **/
|
|
class Element {
|
|
public:
|
|
Element(TokenPtr key_token, Parser &parser);
|
|
~Element();
|
|
|
|
ScopePtr Compound() const {
|
|
return compound;
|
|
}
|
|
|
|
TokenPtr KeyToken() const {
|
|
return key_token;
|
|
}
|
|
|
|
const TokenList &Tokens() const {
|
|
return tokens;
|
|
}
|
|
|
|
private:
|
|
TokenList tokens;
|
|
ScopePtr compound = nullptr;
|
|
std::vector<ScopePtr> compound_scope;
|
|
TokenPtr key_token = nullptr;
|
|
};
|
|
|
|
/** FBX data entity that consists of a 'scope', a collection
|
|
* of not necessarily unique #Element instances.
|
|
*
|
|
* Example:
|
|
* @verbatim
|
|
* GlobalSettings: {
|
|
* Version: 1000
|
|
* Properties70:
|
|
* [...]
|
|
* }
|
|
* @endverbatim */
|
|
class Scope {
|
|
public:
|
|
Scope(Parser &parser, bool topLevel = false);
|
|
~Scope();
|
|
|
|
ElementPtr GetElement(const std::string &index) const {
|
|
ElementMap::const_iterator it = elements.find(index);
|
|
return it == elements.end() ? nullptr : (*it).second;
|
|
}
|
|
|
|
ElementPtr FindElementCaseInsensitive(const std::string &elementName) const {
|
|
for (auto element = elements.begin(); element != elements.end(); ++element) {
|
|
if (element->first.compare(elementName)) {
|
|
return element->second;
|
|
}
|
|
}
|
|
|
|
// nothing to reference / expired.
|
|
return nullptr;
|
|
}
|
|
|
|
ElementCollection GetCollection(const std::string &index) const {
|
|
return elements.equal_range(index);
|
|
}
|
|
|
|
const ElementMap &Elements() const {
|
|
return elements;
|
|
}
|
|
|
|
private:
|
|
ElementMap elements;
|
|
};
|
|
|
|
/** FBX parsing class, takes a list of input tokens and generates a hierarchy
|
|
* of nested #Scope instances, representing the fbx DOM.*/
|
|
class Parser {
|
|
public:
|
|
/** Parse given a token list. Does not take ownership of the tokens -
|
|
* the objects must persist during the entire parser lifetime */
|
|
Parser(const TokenList &tokens, bool is_binary);
|
|
~Parser();
|
|
|
|
ScopePtr GetRootScope() const {
|
|
return root;
|
|
}
|
|
|
|
bool IsBinary() const {
|
|
return is_binary;
|
|
}
|
|
|
|
private:
|
|
friend class Scope;
|
|
friend class Element;
|
|
|
|
TokenPtr AdvanceToNextToken();
|
|
TokenPtr LastToken() const;
|
|
TokenPtr CurrentToken() const;
|
|
|
|
private:
|
|
ScopeList scopes;
|
|
const TokenList &tokens;
|
|
|
|
TokenPtr last = nullptr, current = nullptr;
|
|
TokenList::const_iterator cursor;
|
|
ScopePtr root = nullptr;
|
|
|
|
const bool is_binary;
|
|
};
|
|
|
|
/* token parsing - this happens when building the DOM out of the parse-tree*/
|
|
uint64_t ParseTokenAsID(const TokenPtr t, const char *&err_out);
|
|
size_t ParseTokenAsDim(const TokenPtr t, const char *&err_out);
|
|
float ParseTokenAsFloat(const TokenPtr t, const char *&err_out);
|
|
int ParseTokenAsInt(const TokenPtr t, const char *&err_out);
|
|
int64_t ParseTokenAsInt64(const TokenPtr t, const char *&err_out);
|
|
std::string ParseTokenAsString(const TokenPtr t, const char *&err_out);
|
|
|
|
/* wrapper around ParseTokenAsXXX() with DOMError handling */
|
|
uint64_t ParseTokenAsID(const TokenPtr t);
|
|
size_t ParseTokenAsDim(const TokenPtr t);
|
|
float ParseTokenAsFloat(const TokenPtr t);
|
|
int ParseTokenAsInt(const TokenPtr t);
|
|
int64_t ParseTokenAsInt64(const TokenPtr t);
|
|
std::string ParseTokenAsString(const TokenPtr t);
|
|
|
|
/* read data arrays */
|
|
void ParseVectorDataArray(std::vector<Vector3> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<Color> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<Vector2> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<int> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<float> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<float> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<unsigned int> &out, const ElementPtr el);
|
|
void ParseVectorDataArray(std::vector<uint64_t> &out, const ElementPtr ep);
|
|
void ParseVectorDataArray(std::vector<int64_t> &out, const ElementPtr el);
|
|
bool HasElement(const ScopePtr sc, const std::string &index);
|
|
|
|
// extract a required element from a scope, abort if the element cannot be found
|
|
ElementPtr GetRequiredElement(const ScopePtr sc, const std::string &index, const ElementPtr element = nullptr);
|
|
ScopePtr GetRequiredScope(const ElementPtr el); // New in 2020. (less likely to destroy application)
|
|
ElementPtr GetOptionalElement(const ScopePtr sc, const std::string &index, const ElementPtr element = nullptr);
|
|
// extract required compound scope
|
|
ScopePtr GetRequiredScope(const ElementPtr el);
|
|
// get token at a particular index
|
|
TokenPtr GetRequiredToken(const ElementPtr el, unsigned int index);
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read a 4x4 matrix from an array of 16 floats
|
|
Transform ReadMatrix(const ElementPtr element);
|
|
|
|
} // namespace FBXDocParser
|
|
|
|
#endif // FBXPARSER_H
|