godot/modules/fbx/fbx_parser/FBXAnimation.cpp

292 lines
11 KiB
C++

/**************************************************************************/
/* FBXAnimation.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
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/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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,
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*/
/** @file FBXAnimation.cpp
* @brief Assimp::FBX::AnimationCurve, Assimp::FBX::AnimationCurveNode,
* Assimp::FBX::AnimationLayer, Assimp::FBX::AnimationStack
*/
#include "FBXCommon.h"
#include "FBXDocument.h"
#include "FBXDocumentUtil.h"
#include "FBXParser.h"
namespace FBXDocParser {
using namespace Util;
// ------------------------------------------------------------------------------------------------
AnimationCurve::AnimationCurve(uint64_t id, const ElementPtr element, const std::string &name, const Document & /*doc*/) :
Object(id, element, name) {
const ScopePtr sc = GetRequiredScope(element);
const ElementPtr KeyTime = GetRequiredElement(sc, "KeyTime");
const ElementPtr KeyValueFloat = GetRequiredElement(sc, "KeyValueFloat");
// note preserved keys and values for legacy FBXConverter.cpp
// we can remove this once the animation system is written
// and clean up this code so we do not have copies everywhere.
ParseVectorDataArray(keys, KeyTime);
ParseVectorDataArray(values, KeyValueFloat);
if (keys.size() != values.size()) {
DOMError("the number of key times does not match the number of keyframe values", KeyTime);
}
// put the two lists into the map, underlying container is really just a dictionary
// these will always match, if not an error will throw and the file will not import
// this is useful because we then can report something and fix this later if it becomes an issue
// at this point we do not need a different count of these elements so this makes the
// most sense to do.
for (size_t x = 0; x < keys.size(); x++) {
keyvalues[keys[x]] = values[x];
}
const ElementPtr KeyAttrDataFloat = sc->GetElement("KeyAttrDataFloat");
if (KeyAttrDataFloat) {
ParseVectorDataArray(attributes, KeyAttrDataFloat);
}
const ElementPtr KeyAttrFlags = sc->GetElement("KeyAttrFlags");
if (KeyAttrFlags) {
ParseVectorDataArray(flags, KeyAttrFlags);
}
}
// ------------------------------------------------------------------------------------------------
AnimationCurve::~AnimationCurve() {
// empty
}
// ------------------------------------------------------------------------------------------------
AnimationCurveNode::AnimationCurveNode(uint64_t id, const ElementPtr element, const std::string &name,
const Document &doc, const char *const *target_prop_whitelist /*= NULL*/,
size_t whitelist_size /*= 0*/) :
Object(id, element, name), target(), doc(doc) {
const ScopePtr sc = GetRequiredScope(element);
// find target node
const char *whitelist[] = { "Model", "NodeAttribute", "Deformer" };
const std::vector<const Connection *> &conns = doc.GetConnectionsBySourceSequenced(ID(), whitelist, 3);
for (const Connection *con : conns) {
// link should go for a property
if (!con->PropertyName().length()) {
continue;
}
Object *object = con->DestinationObject();
if (!object) {
DOMWarning("failed to read destination object for AnimationCurveNode->Model link, ignoring", element);
continue;
}
target = object;
prop = con->PropertyName();
break;
}
props = GetPropertyTable(doc, "AnimationCurveNode.FbxAnimCurveNode", element, sc, false);
}
// ------------------------------------------------------------------------------------------------
AnimationCurveNode::~AnimationCurveNode() {
curves.clear();
}
// ------------------------------------------------------------------------------------------------
const AnimationMap &AnimationCurveNode::Curves() const {
/* Lazy loaded animation curves, will only load if required */
if (curves.empty()) {
// resolve attached animation curves
const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationCurve");
for (const Connection *con : conns) {
// So the advantage of having this STL boilerplate is that it's dead simple once you get it.
// The other advantage is casting is guaranteed to be safe and nullptr will be returned in the last step if it fails.
Object *ob = con->SourceObject();
AnimationCurve *anim_curve = dynamic_cast<AnimationCurve *>(ob);
ERR_CONTINUE_MSG(!anim_curve, "Failed to convert animation curve from object");
curves.insert(std::make_pair(con->PropertyName(), anim_curve));
}
}
return curves;
}
// ------------------------------------------------------------------------------------------------
AnimationLayer::AnimationLayer(uint64_t id, const ElementPtr element, const std::string &name, const Document &doc) :
Object(id, element, name), doc(doc) {
const ScopePtr sc = GetRequiredScope(element);
// note: the props table here bears little importance and is usually absent
props = GetPropertyTable(doc, "AnimationLayer.FbxAnimLayer", element, sc, true);
}
// ------------------------------------------------------------------------------------------------
AnimationLayer::~AnimationLayer() {
// empty
}
// ------------------------------------------------------------------------------------------------
const AnimationCurveNodeList AnimationLayer::Nodes(const char *const *target_prop_whitelist,
size_t whitelist_size /*= 0*/) const {
AnimationCurveNodeList nodes;
// resolve attached animation nodes
const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationCurveNode");
nodes.reserve(conns.size());
for (const Connection *con : conns) {
// link should not go to a property
if (con->PropertyName().length()) {
continue;
}
Object *ob = con->SourceObject();
if (!ob) {
DOMWarning("failed to read source object for AnimationCurveNode->AnimationLayer link, ignoring", element);
continue;
}
const AnimationCurveNode *anim = dynamic_cast<AnimationCurveNode *>(ob);
if (!anim) {
DOMWarning("source object for ->AnimationLayer link is not an AnimationCurveNode", element);
continue;
}
if (target_prop_whitelist) {
const char *s = anim->TargetProperty().c_str();
bool ok = false;
for (size_t i = 0; i < whitelist_size; ++i) {
if (!strcmp(s, target_prop_whitelist[i])) {
ok = true;
break;
}
}
if (!ok) {
continue;
}
}
nodes.push_back(anim);
}
return nodes;
}
// ------------------------------------------------------------------------------------------------
AnimationStack::AnimationStack(uint64_t id, const ElementPtr element, const std::string &name, const Document &doc) :
Object(id, element, name) {
const ScopePtr sc = GetRequiredScope(element);
// note: we don't currently use any of these properties so we shouldn't bother if it is missing
props = GetPropertyTable(doc, "AnimationStack.FbxAnimStack", element, sc, true);
// resolve attached animation layers
const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationLayer");
layers.reserve(conns.size());
for (const Connection *con : conns) {
// link should not go to a property
if (con->PropertyName().length()) {
continue;
}
Object *ob = con->SourceObject();
if (!ob) {
DOMWarning("failed to read source object for AnimationLayer->AnimationStack link, ignoring", element);
continue;
}
const AnimationLayer *anim = dynamic_cast<const AnimationLayer *>(ob);
if (!anim) {
DOMWarning("source object for ->AnimationStack link is not an AnimationLayer", element);
continue;
}
layers.push_back(anim);
}
}
// ------------------------------------------------------------------------------------------------
AnimationStack::~AnimationStack() {
if (props != nullptr) {
delete props;
props = nullptr;
}
}
} // namespace FBXDocParser