1288 lines
37 KiB
C++
1288 lines
37 KiB
C++
/*************************************************************************/
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/* FBXParser.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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/*
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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 FBXParser.cpp
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* @brief Implementation of the FBX parser and the rudimentary DOM that we use
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*/
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#include <stdlib.h> /* strtol */
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#include <zlib.h>
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#include "ByteSwapper.h"
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#include "FBXParseTools.h"
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#include "FBXParser.h"
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#include "FBXTokenizer.h"
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#include "core/math/math_defs.h"
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#include "core/math/transform.h"
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#include "core/math/vector3.h"
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#include "core/print_string.h"
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using namespace FBXDocParser;
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namespace {
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// Initially, we did reinterpret_cast, breaking strict aliasing rules.
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// This actually caused trouble on Android, so let's be safe this time.
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// https://github.com/assimp/assimp/issues/24
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template <typename T>
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T SafeParse(const char *data, const char *end) {
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// Actual size validation happens during Tokenization so
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// this is valid as an assertion.
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(void)(end);
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//ai_assert(static_cast<size_t>(end - data) >= sizeof(T));
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T result = static_cast<T>(0);
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::memcpy(&result, data, sizeof(T));
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return result;
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}
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} // namespace
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namespace FBXDocParser {
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// ------------------------------------------------------------------------------------------------
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Element::Element(const TokenPtr key_token, Parser &parser) :
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key_token(key_token) {
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TokenPtr n = nullptr;
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do {
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n = parser.AdvanceToNextToken();
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if (n == nullptr) {
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continue;
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}
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if (!n) {
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print_error("unexpected end of file, expected closing bracket" + String(parser.LastToken()->StringContents().c_str()));
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}
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if (n && n->Type() == TokenType_DATA) {
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tokens.push_back(n);
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TokenPtr prev = n;
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n = parser.AdvanceToNextToken();
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if (n == nullptr) {
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break;
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}
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if (!n) {
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print_error("unexpected end of file, expected bracket, comma or key" + String(parser.LastToken()->StringContents().c_str()));
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}
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const TokenType ty = n->Type();
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// some exporters are missing a comma on the next line
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if (ty == TokenType_DATA && prev->Type() == TokenType_DATA && (n->Line() == prev->Line() + 1)) {
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tokens.push_back(n);
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continue;
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}
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if (ty != TokenType_OPEN_BRACKET && ty != TokenType_CLOSE_BRACKET && ty != TokenType_COMMA && ty != TokenType_KEY) {
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print_error("unexpected token; expected bracket, comma or key" + String(n->StringContents().c_str()));
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}
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}
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if (n && n->Type() == TokenType_OPEN_BRACKET) {
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compound = new_Scope(parser);
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parser.scopes.push_back(compound);
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// current token should be a TOK_CLOSE_BRACKET
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n = parser.CurrentToken();
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if (n && n->Type() != TokenType_CLOSE_BRACKET) {
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print_error("expected closing bracket" + String(n->StringContents().c_str()));
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}
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parser.AdvanceToNextToken();
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return;
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}
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} while (n && n->Type() != TokenType_KEY && n->Type() != TokenType_CLOSE_BRACKET);
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}
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// ------------------------------------------------------------------------------------------------
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Element::~Element() {
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}
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// ------------------------------------------------------------------------------------------------
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Scope::Scope(Parser &parser, bool topLevel) {
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if (!topLevel) {
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TokenPtr t = parser.CurrentToken();
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if (t->Type() != TokenType_OPEN_BRACKET) {
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print_error("expected open bracket" + String(t->StringContents().c_str()));
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}
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}
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TokenPtr n = parser.AdvanceToNextToken();
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if (n == nullptr) {
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print_error("unexpected end of file");
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}
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// note: empty scopes are allowed
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while (n && n->Type() != TokenType_CLOSE_BRACKET) {
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if (n->Type() != TokenType_KEY) {
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print_error("unexpected token, expected TOK_KEY" + String(n->StringContents().c_str()));
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}
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const std::string str = n->StringContents();
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// std::multimap<std::string, ElementPtr> (key and value)
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elements.insert(ElementMap::value_type(str, new_Element(n, parser)));
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// Element() should stop at the next Key token (or right after a Close token)
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n = parser.CurrentToken();
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if (n == nullptr) {
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if (topLevel) {
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return;
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}
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//print_error("unexpected end of file" + String(parser.LastToken()->StringContents().c_str()));
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}
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}
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}
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// ------------------------------------------------------------------------------------------------
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Scope::~Scope() {
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for (ElementMap::value_type &v : elements) {
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delete v.second;
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v.second = nullptr;
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}
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elements.clear();
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}
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// ------------------------------------------------------------------------------------------------
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Parser::Parser(const TokenList &tokens, bool is_binary) :
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tokens(tokens), last(), current(), cursor(tokens.begin()), is_binary(is_binary) {
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root = new_Scope(*this, true);
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scopes.push_back(root);
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}
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// ------------------------------------------------------------------------------------------------
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Parser::~Parser() {
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for (ScopePtr scope : scopes) {
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delete scope;
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scope = nullptr;
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}
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}
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// ------------------------------------------------------------------------------------------------
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TokenPtr Parser::AdvanceToNextToken() {
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last = current;
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if (cursor == tokens.end()) {
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current = nullptr;
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} else {
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current = *cursor++;
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}
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return current;
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}
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// ------------------------------------------------------------------------------------------------
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TokenPtr Parser::CurrentToken() const {
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return current;
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}
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// ------------------------------------------------------------------------------------------------
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TokenPtr Parser::LastToken() const {
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return last;
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}
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// ------------------------------------------------------------------------------------------------
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uint64_t ParseTokenAsID(const TokenPtr t, const char *&err_out) {
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ERR_FAIL_COND_V_MSG(t == nullptr, 0L, "Invalid token passed to ParseTokenAsID");
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return 0L;
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}
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if (t->IsBinary()) {
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const char *data = t->begin();
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if (data[0] != 'L') {
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err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)";
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return 0L;
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}
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uint64_t id = SafeParse<uint64_t>(data + 1, t->end());
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return id;
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}
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// XXX: should use size_t here
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unsigned int length = static_cast<unsigned int>(t->end() - t->begin());
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//ai_assert(length > 0);
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const char *out = nullptr;
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bool errored = false;
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const uint64_t id = strtoul10_64(t->begin(), errored, &out, &length);
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if (errored || out > t->end()) {
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err_out = "failed to parse ID (text)";
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return 0L;
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}
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return id;
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}
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// ------------------------------------------------------------------------------------------------
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// wrapper around ParseTokenAsID() with print_error handling
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uint64_t ParseTokenAsID(const TokenPtr t) {
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const char *err = nullptr;
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const uint64_t i = ParseTokenAsID(t, err);
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if (err) {
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print_error(String(err) + " " + String(t->StringContents().c_str()));
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}
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return i;
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}
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// ------------------------------------------------------------------------------------------------
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size_t ParseTokenAsDim(const TokenPtr t, const char *&err_out) {
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// same as ID parsing, except there is a trailing asterisk
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return 0;
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}
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if (t->IsBinary()) {
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const char *data = t->begin();
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if (data[0] != 'L') {
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err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)";
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return 0;
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}
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uint64_t id = SafeParse<uint64_t>(data + 1, t->end());
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AI_SWAP8(id);
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return static_cast<size_t>(id);
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}
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if (*t->begin() != '*') {
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err_out = "expected asterisk before array dimension";
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return 0;
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}
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// XXX: should use size_t here
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unsigned int length = static_cast<unsigned int>(t->end() - t->begin());
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if (length == 0) {
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err_out = "expected valid integer number after asterisk";
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return 0;
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}
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const char *out = nullptr;
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bool errored = false;
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const size_t id = static_cast<size_t>(strtoul10_64(t->begin() + 1, errored, &out, &length));
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if (errored || out > t->end()) {
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print_error("failed to parse id");
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err_out = "failed to parse ID";
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return 0;
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}
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return id;
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}
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// ------------------------------------------------------------------------------------------------
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float ParseTokenAsFloat(const TokenPtr t, const char *&err_out) {
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return 0.0f;
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}
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if (t->IsBinary()) {
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const char *data = t->begin();
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if (data[0] != 'F' && data[0] != 'D') {
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err_out = "failed to parse F(loat) or D(ouble), unexpected data type (binary)";
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return 0.0f;
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}
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if (data[0] == 'F') {
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return SafeParse<float>(data + 1, t->end());
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} else {
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return static_cast<float>(SafeParse<double>(data + 1, t->end()));
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}
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}
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// need to copy the input string to a temporary buffer
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// first - next in the fbx token stream comes ',',
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// which fast_atof could interpret as decimal point.
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#define MAX_FLOAT_LENGTH 31
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char temp[MAX_FLOAT_LENGTH + 1];
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const size_t length = static_cast<size_t>(t->end() - t->begin());
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std::copy(t->begin(), t->end(), temp);
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temp[std::min(static_cast<size_t>(MAX_FLOAT_LENGTH), length)] = '\0';
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return atof(temp);
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}
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// ------------------------------------------------------------------------------------------------
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int ParseTokenAsInt(const TokenPtr t, const char *&err_out) {
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return 0;
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}
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// binary files are simple to parse
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if (t->IsBinary()) {
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const char *data = t->begin();
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if (data[0] != 'I') {
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err_out = "failed to parse I(nt), unexpected data type (binary)";
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return 0;
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}
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int32_t ival = SafeParse<int32_t>(data + 1, t->end());
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AI_SWAP4(ival);
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return static_cast<int>(ival);
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}
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// ASCII files are unsafe.
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const size_t length = static_cast<size_t>(t->end() - t->begin());
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if (length == 0) {
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err_out = "expected valid integer number after asterisk";
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ERR_FAIL_V_MSG(0, "expected valid integer number after asterisk");
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}
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// must not be null for strtol to work
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char *out = (char *)t->end();
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// string begin, end ptr ref, base 10
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const int value = strtol(t->begin(), &out, 10);
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if (out == nullptr || out != t->end()) {
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err_out = "failed to parse ID";
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ERR_FAIL_V_MSG(0, "failed to parse ID");
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}
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return value;
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}
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// ------------------------------------------------------------------------------------------------
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int64_t ParseTokenAsInt64(const TokenPtr t, const char *&err_out) {
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return 0L;
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}
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if (t->IsBinary()) {
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const char *data = t->begin();
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if (data[0] != 'L') {
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err_out = "failed to parse Int64, unexpected data type";
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return 0L;
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}
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int64_t id = SafeParse<int64_t>(data + 1, t->end());
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AI_SWAP8(id);
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return id;
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}
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// XXX: should use size_t here
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unsigned int length = static_cast<unsigned int>(t->end() - t->begin());
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//ai_assert(length > 0);
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char *out = nullptr;
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const int64_t id = strtol(t->begin(), &out, length);
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if (out > t->end()) {
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err_out = "failed to parse Int64 (text)";
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return 0L;
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}
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return id;
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}
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// ------------------------------------------------------------------------------------------------
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std::string ParseTokenAsString(const TokenPtr t, const char *&err_out) {
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err_out = nullptr;
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if (t->Type() != TokenType_DATA) {
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err_out = "expected TOK_DATA token";
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return "";
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}
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|
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if (t->IsBinary()) {
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const char *data = t->begin();
|
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if (data[0] != 'S') {
|
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err_out = "failed to parse String, unexpected data type (binary)";
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return "";
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}
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// read string length
|
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int32_t len = SafeParse<int32_t>(data + 1, t->end());
|
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AI_SWAP4(len);
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//ai_assert(t.end() - data == 5 + len);
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return std::string(data + 5, len);
|
|
}
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|
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const size_t length = static_cast<size_t>(t->end() - t->begin());
|
|
if (length < 2) {
|
|
err_out = "token is too short to hold a string";
|
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return "";
|
|
}
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|
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const char *s = t->begin(), *e = t->end() - 1;
|
|
if (*s != '\"' || *e != '\"') {
|
|
err_out = "expected double quoted string";
|
|
return "";
|
|
}
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|
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return std::string(s + 1, length - 2);
|
|
}
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|
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namespace {
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|
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// ------------------------------------------------------------------------------------------------
|
|
// read the type code and element count of a binary data array and stop there
|
|
void ReadBinaryDataArrayHead(const char *&data, const char *end, char &type, uint32_t &count,
|
|
const ElementPtr el) {
|
|
TokenPtr token = el->KeyToken();
|
|
if (static_cast<size_t>(end - data) < 5) {
|
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print_error("binary data array is too short, need five (5) bytes for type signature and element count: " + String(token->StringContents().c_str()));
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}
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|
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// data type
|
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type = *data;
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|
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// read number of elements
|
|
uint32_t len = SafeParse<uint32_t>(data + 1, end);
|
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AI_SWAP4(len);
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|
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count = len;
|
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data += 5;
|
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}
|
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|
|
// ------------------------------------------------------------------------------------------------
|
|
// read binary data array, assume cursor points to the 'compression mode' field (i.e. behind the header)
|
|
void ReadBinaryDataArray(char type, uint32_t count, const char *&data, const char *end,
|
|
std::vector<char> &buff,
|
|
const ElementPtr /*el*/) {
|
|
uint32_t encmode = SafeParse<uint32_t>(data, end);
|
|
AI_SWAP4(encmode);
|
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data += 4;
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|
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// next comes the compressed length
|
|
uint32_t comp_len = SafeParse<uint32_t>(data, end);
|
|
AI_SWAP4(comp_len);
|
|
data += 4;
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|
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//ai_assert(data + comp_len == end);
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|
|
// determine the length of the uncompressed data by looking at the type signature
|
|
uint32_t stride = 0;
|
|
switch (type) {
|
|
case 'f':
|
|
case 'i':
|
|
stride = 4;
|
|
break;
|
|
|
|
case 'd':
|
|
case 'l':
|
|
stride = 8;
|
|
break;
|
|
}
|
|
|
|
const uint32_t full_length = stride * count;
|
|
buff.resize(full_length);
|
|
|
|
if (encmode == 0) {
|
|
//ai_assert(full_length == comp_len);
|
|
|
|
// plain data, no compression
|
|
std::copy(data, end, buff.begin());
|
|
} else if (encmode == 1) {
|
|
// zlib/deflate, next comes ZIP head (0x78 0x01)
|
|
// see http://www.ietf.org/rfc/rfc1950.txt
|
|
|
|
z_stream zstream;
|
|
zstream.opaque = Z_NULL;
|
|
zstream.zalloc = Z_NULL;
|
|
zstream.zfree = Z_NULL;
|
|
zstream.data_type = Z_BINARY;
|
|
|
|
// http://hewgill.com/journal/entries/349-how-to-decompress-gzip-stream-with-zlib
|
|
if (Z_OK != inflateInit(&zstream)) {
|
|
print_error("failure initializing zlib");
|
|
}
|
|
|
|
zstream.next_in = reinterpret_cast<Bytef *>(const_cast<char *>(data));
|
|
zstream.avail_in = comp_len;
|
|
|
|
zstream.avail_out = static_cast<uInt>(buff.size());
|
|
zstream.next_out = reinterpret_cast<Bytef *>(&*buff.begin());
|
|
const int ret = inflate(&zstream, Z_FINISH);
|
|
|
|
if (ret != Z_STREAM_END && ret != Z_OK) {
|
|
print_error("failure decompressing compressed data section");
|
|
}
|
|
|
|
// terminate zlib
|
|
inflateEnd(&zstream);
|
|
}
|
|
#ifdef ASSIMP_BUILD_DEBUG
|
|
else {
|
|
// runtime check for this happens at tokenization stage
|
|
//ai_assert(false);
|
|
}
|
|
#endif
|
|
|
|
data += comp_len;
|
|
//ai_assert(data == end);
|
|
}
|
|
|
|
} // namespace
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of float3 tuples
|
|
void ParseVectorDataArray(std::vector<Vector3> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (count % 3 != 0) {
|
|
print_error("number of floats is not a multiple of three (3) (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'd' && type != 'f') {
|
|
print_error("expected float or double array (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
|
|
|
|
const uint32_t count3 = count / 3;
|
|
out.reserve(count3);
|
|
|
|
if (type == 'd') {
|
|
const double *d = reinterpret_cast<const double *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count3; ++i, d += 3) {
|
|
out.push_back(Vector3(static_cast<real_t>(d[0]),
|
|
static_cast<real_t>(d[1]),
|
|
static_cast<real_t>(d[2])));
|
|
}
|
|
} else if (type == 'f') {
|
|
const float *f = reinterpret_cast<const float *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count3; ++i, f += 3) {
|
|
out.push_back(Vector3(f[0], f[1], f[2]));
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// may throw bad_alloc if the input is rubbish, but this need
|
|
// not to be prevented - importing would fail but we wouldn't
|
|
// crash since assimp handles this case properly.
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
if (a->Tokens().size() % 3 != 0) {
|
|
print_error("number of floats is not a multiple of three (3)" + String(token->StringContents().c_str()));
|
|
}
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
Vector3 v;
|
|
v.x = ParseTokenAsFloat(*it++);
|
|
v.y = ParseTokenAsFloat(*it++);
|
|
v.z = ParseTokenAsFloat(*it++);
|
|
|
|
out.push_back(v);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of color4 tuples
|
|
void ParseVectorDataArray(std::vector<Color> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
|
|
TokenPtr token = el->KeyToken();
|
|
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (count % 4 != 0) {
|
|
print_error("number of floats is not a multiple of four (4) (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'd' && type != 'f') {
|
|
print_error("expected float or double array (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
|
|
|
|
const uint32_t count4 = count / 4;
|
|
out.reserve(count4);
|
|
|
|
if (type == 'd') {
|
|
const double *d = reinterpret_cast<const double *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count4; ++i, d += 4) {
|
|
out.push_back(Color(static_cast<float>(d[0]),
|
|
static_cast<float>(d[1]),
|
|
static_cast<float>(d[2]),
|
|
static_cast<float>(d[3])));
|
|
}
|
|
} else if (type == 'f') {
|
|
const float *f = reinterpret_cast<const float *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count4; ++i, f += 4) {
|
|
out.push_back(Color(f[0], f[1], f[2], f[3]));
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray() above
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
if (a->Tokens().size() % 4 != 0) {
|
|
print_error("number of floats is not a multiple of four (4)" + String(token->StringContents().c_str()));
|
|
}
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
Color v;
|
|
v.r = ParseTokenAsFloat(*it++);
|
|
v.g = ParseTokenAsFloat(*it++);
|
|
v.b = ParseTokenAsFloat(*it++);
|
|
v.a = ParseTokenAsFloat(*it++);
|
|
|
|
out.push_back(v);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of float2 tuples
|
|
void ParseVectorDataArray(std::vector<Vector2> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (count % 2 != 0) {
|
|
print_error("number of floats is not a multiple of two (2) (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'd' && type != 'f') {
|
|
print_error("expected float or double array (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
|
|
|
|
const uint32_t count2 = count / 2;
|
|
out.reserve(count2);
|
|
|
|
if (type == 'd') {
|
|
const double *d = reinterpret_cast<const double *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count2; ++i, d += 2) {
|
|
out.push_back(Vector2(static_cast<float>(d[0]),
|
|
static_cast<float>(d[1])));
|
|
}
|
|
} else if (type == 'f') {
|
|
const float *f = reinterpret_cast<const float *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count2; ++i, f += 2) {
|
|
out.push_back(Vector2(f[0], f[1]));
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray() above
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
if (a->Tokens().size() % 2 != 0) {
|
|
print_error("number of floats is not a multiple of two (2)" + String(token->StringContents().c_str()));
|
|
}
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
Vector2 v;
|
|
v.x = ParseTokenAsFloat(*it++);
|
|
v.y = ParseTokenAsFloat(*it++);
|
|
out.push_back(v);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of ints
|
|
void ParseVectorDataArray(std::vector<int> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'i') {
|
|
print_error("expected int array (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * 4);
|
|
|
|
out.reserve(count);
|
|
|
|
const int32_t *ip = reinterpret_cast<const int32_t *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++ip) {
|
|
int32_t val = *ip;
|
|
AI_SWAP4(val);
|
|
out.push_back(val);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray()
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
const int ival = ParseTokenAsInt(*it++);
|
|
out.push_back(ival);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of floats
|
|
void ParseVectorDataArray(std::vector<float> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element: " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'd' && type != 'f') {
|
|
print_error("expected float or double array (binary) " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
|
|
|
|
if (type == 'd') {
|
|
const double *d = reinterpret_cast<const double *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++d) {
|
|
out.push_back(static_cast<float>(*d));
|
|
}
|
|
} else if (type == 'f') {
|
|
const float *f = reinterpret_cast<const float *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++f) {
|
|
out.push_back(*f);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray()
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
const float ival = ParseTokenAsFloat(*it++);
|
|
out.push_back(ival);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of uints
|
|
void ParseVectorDataArray(std::vector<unsigned int> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
const TokenPtr token = el->KeyToken();
|
|
|
|
ERR_FAIL_COND_MSG(!token, "invalid ParseVectorDataArrat token invalid");
|
|
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element: " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'i') {
|
|
print_error("expected (u)int array (binary)" + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * 4);
|
|
|
|
out.reserve(count);
|
|
|
|
const int32_t *ip = reinterpret_cast<const int32_t *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++ip) {
|
|
int32_t val = *ip;
|
|
if (val < 0) {
|
|
print_error("encountered negative integer index (binary)");
|
|
}
|
|
|
|
out.push_back(val);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray()
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
const int ival = ParseTokenAsInt(*it++);
|
|
if (ival < 0) {
|
|
print_error("encountered negative integer index");
|
|
}
|
|
out.push_back(static_cast<unsigned int>(ival));
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of uint64_ts
|
|
void ParseVectorDataArray(std::vector<uint64_t> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
ERR_FAIL_COND(!token);
|
|
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'l') {
|
|
print_error("expected long array (binary): " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * 8);
|
|
|
|
out.reserve(count);
|
|
|
|
const uint64_t *ip = reinterpret_cast<const uint64_t *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++ip) {
|
|
uint64_t val = *ip;
|
|
AI_SWAP8(val);
|
|
out.push_back(val);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray()
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
const uint64_t ival = ParseTokenAsID(*it++);
|
|
|
|
out.push_back(ival);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// read an array of int64_ts
|
|
void ParseVectorDataArray(std::vector<int64_t> &out, const ElementPtr el) {
|
|
out.resize(0);
|
|
const TokenList &tok = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
ERR_FAIL_COND(!token);
|
|
if (tok.empty()) {
|
|
print_error("unexpected empty element: " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
if (tok[0]->IsBinary()) {
|
|
const char *data = tok[0]->begin(), *end = tok[0]->end();
|
|
|
|
char type;
|
|
uint32_t count;
|
|
ReadBinaryDataArrayHead(data, end, type, count, el);
|
|
|
|
if (!count) {
|
|
return;
|
|
}
|
|
|
|
if (type != 'l') {
|
|
print_error("expected long array (binary) " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
std::vector<char> buff;
|
|
ReadBinaryDataArray(type, count, data, end, buff, el);
|
|
|
|
//ai_assert(data == end);
|
|
//ai_assert(buff.size() == count * 8);
|
|
|
|
out.reserve(count);
|
|
|
|
const int64_t *ip = reinterpret_cast<const int64_t *>(&buff[0]);
|
|
for (unsigned int i = 0; i < count; ++i, ++ip) {
|
|
int64_t val = *ip;
|
|
AI_SWAP8(val);
|
|
out.push_back(val);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
const size_t dim = ParseTokenAsDim(tok[0]);
|
|
|
|
// see notes in ParseVectorDataArray()
|
|
out.reserve(dim);
|
|
|
|
const ScopePtr scope = GetRequiredScope(el);
|
|
const ElementPtr a = GetRequiredElement(scope, "a", el);
|
|
|
|
for (TokenList::const_iterator it = a->Tokens().begin(), end = a->Tokens().end(); it != end;) {
|
|
const int64_t val = ParseTokenAsInt64(*it++);
|
|
out.push_back(val);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Transform ReadMatrix(const ElementPtr element) {
|
|
std::vector<float> values;
|
|
ParseVectorDataArray(values, element);
|
|
|
|
if (values.size() != 16) {
|
|
print_error("expected 16 matrix elements");
|
|
}
|
|
|
|
// clean values to prevent any IBM damage on inverse() / affine_inverse()
|
|
for (float &value : values) {
|
|
if (::Math::is_equal_approx(0, value)) {
|
|
value = 0;
|
|
}
|
|
}
|
|
|
|
Transform xform;
|
|
Basis basis;
|
|
|
|
basis.set(
|
|
Vector3(values[0], values[1], values[2]),
|
|
Vector3(values[4], values[5], values[6]),
|
|
Vector3(values[8], values[9], values[10]));
|
|
|
|
xform.basis = basis;
|
|
xform.origin = Vector3(values[12], values[13], values[14]);
|
|
// determine if we need to think about this with dynamic rotation order?
|
|
// for example:
|
|
// xform.basis = z_axis * y_axis * x_axis;
|
|
//xform.basis.transpose();
|
|
|
|
print_verbose("xform verbose basis: " + (xform.basis.get_euler() * (180 / Math_PI)) + " xform origin:" + xform.origin);
|
|
|
|
return xform;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// wrapper around ParseTokenAsString() with print_error handling
|
|
std::string ParseTokenAsString(const TokenPtr t) {
|
|
ERR_FAIL_COND_V(!t, "");
|
|
const char *err;
|
|
const std::string &i = ParseTokenAsString(t, err);
|
|
if (err) {
|
|
print_error(String(err) + ", " + String(t->StringContents().c_str()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// 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 /*= NULL*/) {
|
|
ElementPtr el = sc->GetElement(index);
|
|
TokenPtr token = el->KeyToken();
|
|
ERR_FAIL_COND_V(!token, nullptr);
|
|
if (!el) {
|
|
print_error("did not find required element \"" + String(index.c_str()) + "\" " + String(token->StringContents().c_str()));
|
|
}
|
|
return el;
|
|
}
|
|
|
|
bool HasElement(const ScopePtr sc, const std::string &index) {
|
|
const ElementPtr el = sc->GetElement(index);
|
|
if (nullptr == el) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// extract a required element from a scope, abort if the element cannot be found
|
|
ElementPtr GetOptionalElement(const ScopePtr sc, const std::string &index, const ElementPtr element /*= NULL*/) {
|
|
ElementPtr el = sc->GetElement(index);
|
|
return el;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// extract required compound scope
|
|
ScopePtr GetRequiredScope(const ElementPtr el) {
|
|
if (el) {
|
|
ScopePtr s = el->Compound();
|
|
TokenPtr token = el->KeyToken();
|
|
ERR_FAIL_COND_V(!token, nullptr);
|
|
if (s) {
|
|
return s;
|
|
}
|
|
|
|
ERR_FAIL_V_MSG(nullptr, "expected compound scope " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
ERR_FAIL_V_MSG(nullptr, "Invalid element supplied to parser");
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// get token at a particular index
|
|
TokenPtr GetRequiredToken(const ElementPtr el, unsigned int index) {
|
|
if (el) {
|
|
const TokenList &x = el->Tokens();
|
|
TokenPtr token = el->KeyToken();
|
|
|
|
ERR_FAIL_COND_V(!token, nullptr);
|
|
|
|
if (index >= x.size()) {
|
|
ERR_FAIL_V_MSG(nullptr, "missing token at index: " + itos(index) + " " + String(token->StringContents().c_str()));
|
|
}
|
|
|
|
return x[index];
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// wrapper around ParseTokenAsDim() with print_error handling
|
|
size_t ParseTokenAsDim(const TokenPtr t) {
|
|
const char *err;
|
|
const size_t i = ParseTokenAsDim(t, err);
|
|
if (err) {
|
|
print_error(String(err) + " " + String(t->StringContents().c_str()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// wrapper around ParseTokenAsFloat() with print_error handling
|
|
float ParseTokenAsFloat(const TokenPtr t) {
|
|
const char *err;
|
|
const float i = ParseTokenAsFloat(t, err);
|
|
if (err) {
|
|
print_error(String(err) + " " + String(t->StringContents().c_str()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// wrapper around ParseTokenAsInt() with print_error handling
|
|
int ParseTokenAsInt(const TokenPtr t) {
|
|
const char *err;
|
|
const int i = ParseTokenAsInt(t, err);
|
|
if (err) {
|
|
print_error(String(err) + " " + String(t->StringContents().c_str()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
// wrapper around ParseTokenAsInt64() with print_error handling
|
|
int64_t ParseTokenAsInt64(const TokenPtr t) {
|
|
const char *err;
|
|
const int64_t i = ParseTokenAsInt64(t, err);
|
|
if (err) {
|
|
print_error(String(err) + " " + String(t->StringContents().c_str()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
} // namespace FBXDocParser
|