godot/modules/fbx/fbx_parser/FBXProperties.cpp

247 lines
9.2 KiB
C++

/*************************************************************************/
/* FBXProperties.cpp */
/*************************************************************************/
/* This file is part of: */
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/*************************************************************************/
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/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------
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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:
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following disclaimer.
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derived from this software without specific prior
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"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,
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
/** @file FBXProperties.cpp
* @brief Implementation of the FBX dynamic properties system
*/
#include "FBXProperties.h"
#include "FBXDocumentUtil.h"
#include "FBXParser.h"
#include "FBXTokenizer.h"
namespace FBXDocParser {
using namespace Util;
// ------------------------------------------------------------------------------------------------
Property::Property() {
}
// ------------------------------------------------------------------------------------------------
Property::~Property() {
}
namespace {
// ------------------------------------------------------------------------------------------------
// read a typed property out of a FBX element. The return value is NULL if the property cannot be read.
PropertyPtr ReadTypedProperty(const ElementPtr element) {
//ai_assert(element.KeyToken().StringContents() == "P");
const TokenList &tok = element->Tokens();
//ai_assert(tok.size() >= 5);
const std::string &s = ParseTokenAsString(tok[1]);
const char *const cs = s.c_str();
if (!strcmp(cs, "KString")) {
return new TypedProperty<std::string>(ParseTokenAsString(tok[4]));
} else if (!strcmp(cs, "bool") || !strcmp(cs, "Bool")) {
return new TypedProperty<bool>(ParseTokenAsInt(tok[4]) != 0);
} else if (!strcmp(cs, "int") || !strcmp(cs, "Int") || !strcmp(cs, "enum") || !strcmp(cs, "Enum")) {
return new TypedProperty<int>(ParseTokenAsInt(tok[4]));
} else if (!strcmp(cs, "ULongLong")) {
return new TypedProperty<uint64_t>(ParseTokenAsID(tok[4]));
} else if (!strcmp(cs, "KTime")) {
return new TypedProperty<int64_t>(ParseTokenAsInt64(tok[4]));
} else if (!strcmp(cs, "Vector3D") ||
!strcmp(cs, "ColorRGB") ||
!strcmp(cs, "Vector") ||
!strcmp(cs, "Color") ||
!strcmp(cs, "Lcl Translation") ||
!strcmp(cs, "Lcl Rotation") ||
!strcmp(cs, "Lcl Scaling")) {
return new TypedProperty<Vector3>(Vector3(
ParseTokenAsFloat(tok[4]),
ParseTokenAsFloat(tok[5]),
ParseTokenAsFloat(tok[6])));
} else if (!strcmp(cs, "double") || !strcmp(cs, "Number") || !strcmp(cs, "Float") || !strcmp(cs, "float") || !strcmp(cs, "FieldOfView") || !strcmp(cs, "UnitScaleFactor")) {
return new TypedProperty<float>(ParseTokenAsFloat(tok[4]));
}
return nullptr;
}
// ------------------------------------------------------------------------------------------------
// peek into an element and check if it contains a FBX property, if so return its name.
std::string PeekPropertyName(const Element &element) {
//ai_assert(element.KeyToken().StringContents() == "P");
const TokenList &tok = element.Tokens();
if (tok.size() < 4) {
return "";
}
return ParseTokenAsString(tok[0]);
}
} // namespace
// ------------------------------------------------------------------------------------------------
PropertyTable::PropertyTable() :
element(nullptr) {
}
// Is used when dealing with FBX Objects not metadata.
PropertyTable::PropertyTable(const ElementPtr element) :
element(element) {
Setup(element);
}
// ------------------------------------------------------------------------------------------------
PropertyTable::~PropertyTable() {
for (PropertyMap::value_type &v : props) {
delete v.second;
}
}
void PropertyTable::Setup(ElementPtr ptr) {
const ScopePtr sc = GetRequiredScope(ptr);
const ElementPtr Properties70 = sc->GetElement("Properties70");
const ScopePtr scope = GetOptionalScope(Properties70);
// no scope, no care.
if (!scope) {
return; // NOTE: this is not an error this is actually a Object, without properties, here we will nullptr it.
}
for (const ElementMap::value_type &v : scope->Elements()) {
if (v.first != "P") {
DOMWarning("expected only P elements in property table", v.second);
continue;
}
const std::string &name = PeekPropertyName(*v.second);
if (!name.length()) {
DOMWarning("could not read property name", v.second);
continue;
}
LazyPropertyMap::const_iterator it = lazyProps.find(name);
if (it != lazyProps.end()) {
DOMWarning("duplicate property name, will hide previous value: " + name, v.second);
continue;
}
// since the above checks for duplicates we can be sure to insert the only match here.
lazyProps[name] = v.second;
}
}
// ------------------------------------------------------------------------------------------------
PropertyPtr PropertyTable::Get(const std::string &name) const {
PropertyMap::const_iterator it = props.find(name);
if (it == props.end()) {
// hasn't been parsed yet?
LazyPropertyMap::const_iterator lit = lazyProps.find(name);
if (lit != lazyProps.end()) {
props[name] = ReadTypedProperty(lit->second);
it = props.find(name);
//ai_assert(it != props.end());
}
if (it == props.end()) {
// check property template
return nullptr;
}
}
return (*it).second;
}
DirectPropertyMap PropertyTable::GetUnparsedProperties() const {
DirectPropertyMap result;
// Loop through all the lazy properties (which is all the properties)
for (const LazyPropertyMap::value_type &element : lazyProps) {
// Skip parsed properties
if (props.end() != props.find(element.first)) {
continue;
}
// Read the element's value.
// Wrap the naked pointer (since the call site is required to acquire ownership)
// std::unique_ptr from C++11 would be preferred both as a wrapper and a return value.
Property *prop = ReadTypedProperty(element.second);
// Element could not be read. Skip it.
if (!prop) {
continue;
}
// Add to result
result[element.first] = prop;
}
return result;
}
} // namespace FBXDocParser