From 02c809625a710a6fc92eab78efe156fa055b4c4c Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Tue, 12 Jan 2016 00:38:36 +0100
Subject: [PATCH] implemented many create/clone/destroy functions

---
 src/clump.cpp   | 106 ++++++++++++++++++++++++++++++++++++++++++++++--
 src/rwobjects.h |  24 ++++++++++-
 2 files changed, 125 insertions(+), 5 deletions(-)

diff --git a/src/clump.cpp b/src/clump.cpp
index 7ec69ca..05e26d9 100644
--- a/src/clump.cpp
+++ b/src/clump.cpp
@@ -40,9 +40,47 @@ Frame::create(void)
 	return f;
 }
 
+Frame*
+Frame::cloneHierarchy(void)
+{
+	Frame *frame = this->cloneAndLink(NULL);
+	frame->purgeClone();
+	return frame;
+}
+
 void
 Frame::destroy(void)
 {
+	this->destructPlugins();
+	Frame *parent = this->getParent();
+	Frame *child;
+	if(parent){
+		// remove from child list
+		child = parent->child;
+		if(child == this)
+			parent->child = this->next;
+		else{
+			for(child = child->next; child != this; child = child->next)
+				;
+			child->next = this->next;
+		}
+		this->object.parent = NULL;
+		// Doesn't seem to make much sense, blame criterion.
+		this->setHierarchyRoot(this);
+	}
+	for(Frame *f = this->child; f; f = f->next)
+		f->object.parent = NULL;
+	free(this);
+}
+
+void
+Frame::destroyHierarchy(void)
+{
+	Frame *next;
+	for(Frame *child = this->child; child; child = next){
+		next = child->next;
+		child->destroyHierarchy();
+	}
 	this->destructPlugins();
 	free(this);
 }
@@ -138,6 +176,43 @@ Frame::setDirty(void)
 	this->forAllChildren(dirtyCB, NULL);
 }
 
+void
+Frame::setHierarchyRoot(Frame *root)
+{
+	this->root = root;
+	for(Frame *child = this->child; child; child = child->next)
+		child->setHierarchyRoot(root);
+}
+
+// Clone a frame hierarchy. Link cloned frames into Frame::root of the originals.
+Frame*
+Frame::cloneAndLink(Frame *clonedroot)
+{
+	Frame *frame = Frame::create();
+	if(clonedroot == NULL)
+		clonedroot = frame;
+	frame->object.copy(&this->object);
+	memcpy(frame->matrix, this->matrix, sizeof(this->matrix));
+	frame->root = clonedroot;
+	this->root = frame;	// Remember cloned frame
+	for(Frame *child = this->child; child; child = child->next){
+		Frame *clonedchild = child->cloneAndLink(clonedroot);
+		clonedchild->next = frame->child;
+		frame->child = clonedchild;
+		clonedchild->object.parent = frame;
+	}
+	frame->copyPlugins(this);
+	return frame;
+}
+
+// Remove links to cloned frames from hierarchy.
+void
+Frame::purgeClone(void)
+{
+	Frame *parent = this->getParent();
+	this->setHierarchyRoot(parent ? parent->root : this);
+}
+
 static Frame*
 sizeCB(Frame *f, void *size)
 {
@@ -176,7 +251,15 @@ Clump*
 Clump::clone(void)
 {
 	Clump *clump = Clump::create();
-	// TODO actually clone
+	Frame *root = this->getFrame()->cloneHierarchy();
+	clump->setFrame(root);
+	FORLIST(lnk, this->atomics){
+		Atomic *a = Atomic::fromClump(lnk);
+		Atomic *atomic = a->clone();
+		atomic->setFrame(a->getFrame()->root);
+		clump->addAtomic(atomic);
+	}
+	root->purgeClone();
 	clump->copyPlugins(this);
 	return clump;
 }
@@ -184,7 +267,14 @@ Clump::clone(void)
 void
 Clump::destroy(void)
 {
+	Frame *f;
 	this->destructPlugins();
+	FORLIST(lnk, this->atomics)
+		Atomic::fromClump(lnk)->destroy();
+	FORLIST(lnk, this->lights)
+		Light::fromClump(lnk)->destroy();
+	if(f = this->getFrame())
+		f->destroyHierarchy();
 	free(this);
 }
 
@@ -445,13 +535,19 @@ Atomic::create(void)
 	atomic->pipeline = NULL;
 	atomic->constructPlugins();
 	return atomic;
-}
+}
 
 Atomic*
 Atomic::clone()
 {
 	Atomic *atomic = Atomic::create();
-	//TODO
+	atomic->object.copy(&this->object);
+	atomic->object.privateFlags |= 1;
+	if(this->geometry){
+		atomic->geometry = this->geometry;
+		atomic->geometry->refCount++;
+	}
+	atomic->pipeline = this->pipeline;
 	atomic->copyPlugins(this);
 	return atomic;
 }
@@ -459,8 +555,10 @@ Atomic::clone()
 void
 Atomic::destroy(void)
 {
-	//TODO
 	this->destructPlugins();
+	if(this->geometry)
+		this->geometry->destroy();
+	this->setFrame(NULL);
 	free(this);
 }
 
diff --git a/src/rwobjects.h b/src/rwobjects.h
index b6a7d69..29125f7 100644
--- a/src/rwobjects.h
+++ b/src/rwobjects.h
@@ -64,6 +64,13 @@ struct Object
 		this->privateFlags = 0;
 		this->parent = NULL;
 	}
+	void copy(Object *o){
+		this->type = o->type;
+		this->subType = o->subType;
+		this->flags = o->flags;
+		this->privateFlags = o->privateFlags;
+		this->parent = NULL;
+	}
 };
 
 struct Frame : PluginBase<Frame>
@@ -85,14 +92,22 @@ struct Frame : PluginBase<Frame>
 
 	// MEM create, clonehiearchy, destroy, destroy hierarchy
 	static Frame *create(void);
+	Frame *cloneHierarchy(void);
 	void destroy(void);
-
+	void destroyHierarchy(void);
 	Frame *addChild(Frame *f);
 	Frame *removeChild(void);
 	Frame *forAllChildren(Callback cb, void *data);
+	Frame *getParent(void){
+		return (Frame*)this->object.parent;
+	}
 	int32 count(void);
 	void updateLTM(void);
 	void setDirty(void);
+
+	void setHierarchyRoot(Frame *root);
+	Frame *cloneAndLink(Frame *clonedroot);
+	void purgeClone(void);
 };
 
 Frame **makeFrameList(Frame *frame, Frame **flist);
@@ -515,6 +530,7 @@ struct Atomic : PluginBase<Atomic>
 	Atomic *clone(void);
 	void destroy(void);
 	void setFrame(Frame *f) { this->object.setFrame(f); }
+	Frame *getFrame(void) { return (Frame*)this->object.parent; }
 	static Atomic *fromClump(LLLink *lnk){
 		return LLLinkGetData(lnk, Atomic, inClump);
 	}
@@ -553,6 +569,12 @@ struct Clump : PluginBase<Clump>
 		l->clump = this;
 		this->lights.append(&l->inClump);
 	}
+	void setFrame(Frame *f){
+		this->object.parent = f;
+	}
+	Frame *getFrame(void){
+		return (Frame*)this->object.parent;
+	}
 	static Clump *streamRead(Stream *stream);
 	bool streamWrite(Stream *stream);
 	uint32 streamGetSize(void);