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CWE-ou-minkata/Sources/Plasma/NucleusLib/pnSceneObject/plCoordinateInterface.cpp

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#include "HeadSpin.h"
#include "plCoordinateInterface.h"
#include "plDrawInterface.h"
#include "plSimulationInterface.h"
#include "plAudioInterface.h"
#include "pnMessage/plWarpMsg.h"
#include "pnMessage/plTimeMsg.h"
#include "pnMessage/plCorrectionMsg.h"
#include "pnMessage/plIntRefMsg.h"
#include "pnNetCommon/plSDLTypes.h"
#include "plSceneObject.h"
#include "hsResMgr.h"
#include "plgDispatch.h"
#include "pnKeyedObject/plKey.h"
#include "hsStream.h"
#include "plProfile.h"
uint8_t plCoordinateInterface::fTransformPhase = plCoordinateInterface::kTransformPhaseNormal;
hsBool plCoordinateInterface::fDelayedTransformsEnabled = true;
plCoordinateInterface::plCoordinateInterface()
: fParent(nil),
fReason(kReasonUnknown)
{
fLocalToParent.Reset();
fParentToLocal.Reset();
fLocalToWorld.Reset();
fWorldToLocal.Reset();
fState = 0;
}
plCoordinateInterface::~plCoordinateInterface()
{
if( fParent )
fParent->IRemoveChild(IGetOwner());
int i;
for( i = fChildren.GetCount()-1; i >= 0; i-- )
IRemoveChild(i);
}
void plCoordinateInterface::ISetSceneNode(plKey newNode)
{
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
{
if( fChildren[i] )
fChildren[i]->SetSceneNode(newNode);
}
}
void plCoordinateInterface::ISetOwner(plSceneObject* so)
{
plObjInterface::ISetOwner(so);
IDirtyTransform();
fReason |= kReasonUnknown;
}
void plCoordinateInterface::ISetParent(plCoordinateInterface* par)
{
fParent = par;
// This won't have any effect if my owner is NetGroupConstant
if( fParent )
ISetNetGroupRecur(fParent->GetNetGroup());
IDirtyTransform();
fReason |= kReasonUnknown;
}
plCoordinateInterface* plCoordinateInterface::GetChild(int i) const
{
return fChildren[i] ? fChildren[i]->GetVolatileCoordinateInterface() : nil;
}
void plCoordinateInterface::IRemoveChild(int i)
{
if( fChildren[i] )
{
plCoordinateInterface* childCI = fChildren[i]->GetVolatileCoordinateInterface();
if( childCI )
childCI->ISetParent(nil);
}
fChildren.Remove(i);
}
void plCoordinateInterface::IRemoveChild(plSceneObject* child)
{
int idx = fChildren.Find(child);
if( idx != fChildren.kMissingIndex )
IRemoveChild(idx);
}
void plCoordinateInterface::ISetChild(plSceneObject* child, int which)
{
hsAssert(child, "Setting a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Child with no coordinate interface");
childCI->ISetParent(this);
if( which < 0 )
which = fChildren.GetCount();
fChildren.ExpandAndZero(which+1);
fChildren[which] = child;
// If we can't delay our transform update, neither can any of our parents.
if (!childCI->GetProperty(kDelayedTransformEval))
{
plCoordinateInterface *current = childCI->GetParent();
while (current)
{
current->SetProperty(kDelayedTransformEval, false);
current = current->GetParent();
}
}
}
void plCoordinateInterface::IAddChild(plSceneObject* child)
{
ISetChild(child, -1);
}
void plCoordinateInterface::IAttachChild(plSceneObject* child, uint8_t flags)
{
hsAssert(child, "Attaching a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Owner without CoordinateInterface being attached");
if (childCI->GetParent() == this)
return; // We're already attached! Who told us to do this?
hsMatrix44 l2w = childCI->GetLocalToWorld();
hsMatrix44 w2l = childCI->GetWorldToLocal();
if( childCI->GetParent() )
childCI->GetParent()->IDetachChild(child, flags | kAboutToAttach);
childCI->IUnRegisterForTransformMessage();
IAddChild(child);
if( flags & kMaintainWorldPosition )
childCI->WarpToWorld(l2w,w2l);
}
void plCoordinateInterface::IDetachChild(plSceneObject* child, uint8_t flags)
{
hsAssert(child, "Detaching a nil child");
plCoordinateInterface* childCI = child->GetVolatileCoordinateInterface();
hsAssert(childCI, "Owner without CoordinateInterface being attached");
hsMatrix44 l2w = childCI->GetLocalToWorld();
hsMatrix44 w2l = childCI->GetWorldToLocal();
GetKey()->Release(child->GetKey());
if( IGetOwner() && IGetOwner()->GetKey() )
IGetOwner()->GetKey()->Release(child->GetKey());
IRemoveChild(child);
if( flags & kMaintainWorldPosition )
childCI->WarpToWorld(l2w,w2l);
// If the child was keeping us from delaying our transform,
// maybe we can, now that it's gone.
if (!childCI->GetProperty(kDelayedTransformEval))
IUpdateDelayProp();
}
/*
* A few notes on the delay transform properties...
*
* The kCanEverDelayTransform prop is independent of any parents/children.
* It means this particular node must always update its transform in response
* to a plTransformMsg. It is intended for objects with physics, because they
* need to be up-to-date before the simulationMgr updates the physical world.
*
* The kDelayedTransformEval prop is for nodes that are free of physics. (So no
* physical descendants either). If the property is set, we won't update our
* transform until AFTER the simulationMgr does its work.
*
* When we attach a child that can't delay its eval (at the moment), we recurse
* up to the root, turning off the kDelayedTransformEval prop as we go. When we
* remove such a child, we check if that child was the only reason we weren't
* delaying our transform. If so, we update ourself and tell our parent to check.
*
* BTW: The POINT of all this is that when we update our l2w transforms because
* we're animated, and then we update AGAIN after a parent node of ours involved
* in physics gets a slight nudge, the first update becomes pointless. The
* delay prop bookkeeping keeps us from doing the wasted calculations. And since
* nearly all bones on the avatar are in this exact situation, it's worth doing.
*/
void plCoordinateInterface::IUpdateDelayProp()
{
int i;
if (!GetProperty(kCanEverDelayTransform))
return;
for (i = 0; i < GetNumChildren(); i++)
{
// If we still have a child that needs the delay...
if (!GetChild(i)->GetProperty(kDelayedTransformEval))
return;
}
// Cool, we can delay now, which means maybe our parent can too.
SetProperty(kDelayedTransformEval, true);
if (GetParent())
GetParent()->IUpdateDelayProp();
}
plCoordinateInterface* plCoordinateInterface::IGetRoot()
{
return fParent ? fParent->IGetRoot() : this;
}
void plCoordinateInterface::IRegisterForTransformMessage(hsBool delayed)
{
if( IGetOwner() )
{
if ((delayed || fTransformPhase == kTransformPhaseDelayed) && fDelayedTransformsEnabled)
plgDispatch::Dispatch()->RegisterForExactType(plDelayedTransformMsg::Index(), IGetOwner()->GetKey());
else
plgDispatch::Dispatch()->RegisterForExactType(plTransformMsg::Index(), IGetOwner()->GetKey());
}
}
void plCoordinateInterface::IUnRegisterForTransformMessage()
{
if( IGetOwner() )
plgDispatch::Dispatch()->UnRegisterForExactType(plTransformMsg::Index(), IGetOwner()->GetKey());
}
void plCoordinateInterface::IDirtyTransform()
{
fState |= kTransformDirty;
IGetRoot()->IRegisterForTransformMessage(GetProperty(kDelayedTransformEval));
}
void plCoordinateInterface::MultTransformLocal(const hsMatrix44& move, const hsMatrix44& invMove)
{
fReason |= kReasonUnknown;
fLocalToParent = move * fLocalToParent;
fParentToLocal = fParentToLocal * invMove;
IDirtyTransform();
}
void plCoordinateInterface::SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
fReason |= kReasonUnknown;
if( fParent )
{
SetLocalToParent(fParent->GetWorldToLocal() * l2w, w2l * fParent->GetLocalToWorld());
}
else
{
SetLocalToParent(l2w, w2l);
}
}
void plCoordinateInterface::SetTransformPhysical(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
// since we use public interfaces to do the details
// AND those public interfaces could be called by anyone
// AND those public interfaces therefore have to set their own "reason" for the transform change
// THEREFORE: we need to preserve the "reason" flags before we call the public interfaces
// so that we don't get reasonPhysics + reasonUnknown, just reasonPhysics
uint16_t oldReason = fReason;
if( fParent )
{
SetLocalToParent(fParent->GetWorldToLocal() * l2w, w2l * fParent->GetLocalToWorld());
}
else
{
SetLocalToParent(l2w, w2l);
}
fReason = oldReason | kReasonPhysics;
}
uint16_t plCoordinateInterface::GetReasons()
{
return fReason;
}
void plCoordinateInterface::ClearReasons()
{
fReason = nil;
}
void plCoordinateInterface::SetLocalToParent(const hsMatrix44& l2p, const hsMatrix44& p2l)
{
fReason |= kReasonUnknown;
fLocalToParent = l2p;
fParentToLocal = p2l;
IDirtyTransform();
}
void plCoordinateInterface::WarpToLocal(const hsMatrix44& l2p, const hsMatrix44& p2l)
{
fReason |= kReasonUnknown;
SetLocalToParent(l2p, p2l);
// update physical state when an object is warped
if (IGetOwner())
IGetOwner()->DirtySynchState(kSDLPhysical, 0);
}
void plCoordinateInterface::WarpToWorld(const hsMatrix44& l2w, const hsMatrix44& w2l)
{
fReason |= kReasonUnknown;
if( fParent )
{
hsMatrix44 l2p = fParent->GetWorldToLocal() * l2w;
hsMatrix44 p2l = w2l * fParent->GetLocalToWorld();
WarpToLocal(l2p, p2l);
}
else
{
WarpToLocal(l2w, w2l);
}
}
plProfile_CreateCounter("CITrans", "Object", CITrans);
plProfile_CreateCounter(" CIRecalc", "Object", CIRecalc);
plProfile_CreateCounter(" CIDirty", "Object", CIDirty);
plProfile_CreateCounter(" CISet", "Object", CISet);
plProfile_CreateTimer("CITransT", "Object", CITransT);
plProfile_CreateTimer(" CIRecalcT", "Object", CIRecalcT);
plProfile_CreateTimer(" CIDirtyT", "Object", CIDirtyT);
plProfile_CreateTimer(" CISetT", "Object", CISetT);
#ifndef HAVE_SSE
static inline hsMatrix44 IMatrixMul34(const hsMatrix44& lhs, const hsMatrix44& rhs)
{
hsMatrix44 ret;
ret.NotIdentity();
ret.fMap[3][0] = ret.fMap[3][1] = ret.fMap[3][2] = 0;
ret.fMap[3][3] = 1.f;
ret.fMap[0][0] = lhs.fMap[0][0] * rhs.fMap[0][0]
+ lhs.fMap[0][1] * rhs.fMap[1][0]
+ lhs.fMap[0][2] * rhs.fMap[2][0];
ret.fMap[0][1] = lhs.fMap[0][0] * rhs.fMap[0][1]
+ lhs.fMap[0][1] * rhs.fMap[1][1]
+ lhs.fMap[0][2] * rhs.fMap[2][1];
ret.fMap[0][2] = lhs.fMap[0][0] * rhs.fMap[0][2]
+ lhs.fMap[0][1] * rhs.fMap[1][2]
+ lhs.fMap[0][2] * rhs.fMap[2][2];
ret.fMap[0][3] = lhs.fMap[0][0] * rhs.fMap[0][3]
+ lhs.fMap[0][1] * rhs.fMap[1][3]
+ lhs.fMap[0][2] * rhs.fMap[2][3]
+ lhs.fMap[0][3];
ret.fMap[1][0] = lhs.fMap[1][0] * rhs.fMap[0][0]
+ lhs.fMap[1][1] * rhs.fMap[1][0]
+ lhs.fMap[1][2] * rhs.fMap[2][0];
ret.fMap[1][1] = lhs.fMap[1][0] * rhs.fMap[0][1]
+ lhs.fMap[1][1] * rhs.fMap[1][1]
+ lhs.fMap[1][2] * rhs.fMap[2][1];
ret.fMap[1][2] = lhs.fMap[1][0] * rhs.fMap[0][2]
+ lhs.fMap[1][1] * rhs.fMap[1][2]
+ lhs.fMap[1][2] * rhs.fMap[2][2];
ret.fMap[1][3] = lhs.fMap[1][0] * rhs.fMap[0][3]
+ lhs.fMap[1][1] * rhs.fMap[1][3]
+ lhs.fMap[1][2] * rhs.fMap[2][3]
+ lhs.fMap[1][3];
ret.fMap[2][0] = lhs.fMap[2][0] * rhs.fMap[0][0]
+ lhs.fMap[2][1] * rhs.fMap[1][0]
+ lhs.fMap[2][2] * rhs.fMap[2][0];
ret.fMap[2][1] = lhs.fMap[2][0] * rhs.fMap[0][1]
+ lhs.fMap[2][1] * rhs.fMap[1][1]
+ lhs.fMap[2][2] * rhs.fMap[2][1];
ret.fMap[2][2] = lhs.fMap[2][0] * rhs.fMap[0][2]
+ lhs.fMap[2][1] * rhs.fMap[1][2]
+ lhs.fMap[2][2] * rhs.fMap[2][2];
ret.fMap[2][3] = lhs.fMap[2][0] * rhs.fMap[0][3]
+ lhs.fMap[2][1] * rhs.fMap[1][3]
+ lhs.fMap[2][2] * rhs.fMap[2][3]
+ lhs.fMap[2][3];
return ret;
}
#endif // HAVE_SSE
void plCoordinateInterface::IRecalcTransforms()
{
plProfile_IncCount(CIRecalc, 1);
plProfile_BeginTiming(CIRecalcT);
if( fParent )
{
#ifdef HAVE_SSE
fLocalToWorld = fParent->GetLocalToWorld() * fLocalToParent;
fWorldToLocal = fParentToLocal * fParent->GetWorldToLocal();
#else
fLocalToWorld = IMatrixMul34(fParent->GetLocalToWorld(), fLocalToParent);
fWorldToLocal = IMatrixMul34(fParentToLocal, fParent->GetWorldToLocal());
#endif
}
else
{
fLocalToWorld = fLocalToParent;
fWorldToLocal = fParentToLocal;
}
plProfile_EndTiming(CIRecalcT);
}
void plCoordinateInterface::ITransformChanged(hsBool force, uint16_t reasons, hsBool checkForDelay)
{
plProfile_IncCount(CITrans, 1);
plProfile_BeginTiming(CITransT);
// inherit reasons for transform change from our parents
fReason |= reasons;
uint16_t propagateReasons = fReason;
hsBool process = !(checkForDelay && GetProperty(kDelayedTransformEval)) || !fDelayedTransformsEnabled;
if (process)
{
if( fState & kTransformDirty )
force = true;
}
if( force )
{
IRecalcTransforms();
plProfile_IncCount(CISet, 1);
plProfile_BeginTiming(CISetT);
if( IGetOwner() )
{
IGetOwner()->ISetTransform(fLocalToWorld, fWorldToLocal);
}
plProfile_EndTiming(CISetT);
fState &= ~kTransformDirty;
}
plProfile_EndTiming(CITransT);
if (process)
{
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
{
if( fChildren[i] && fChildren[i]->GetVolatileCoordinateInterface() )
fChildren[i]->GetVolatileCoordinateInterface()->ITransformChanged(force, propagateReasons, checkForDelay);
}
}
else if (force)
{
plProfile_IncCount(CIDirty, 1);
plProfile_BeginTiming(CITransT);
// Our parent is dirty and we're bailing out on evaluating right now.
// Need to ensure we'll be evaluated in the delay pass
plProfile_BeginTiming(CIDirtyT);
IDirtyTransform();
plProfile_EndTiming(CIDirtyT);
plProfile_EndTiming(CITransT);
}
}
void plCoordinateInterface::FlushTransform(hsBool fromRoot)
{
if( fromRoot )
IGetRoot()->ITransformChanged(false, 0, false);
else
ITransformChanged(false, 0, false);
}
void plCoordinateInterface::ISetNetGroupRecur(plNetGroupId netGroup)
{
if( !IGetOwner() )
return;
if( IGetOwner()->GetSynchFlags() & kHasConstantNetGroup )
return;
IGetOwner()->plSynchedObject::SetNetGroup(netGroup);
int i;
for( i = 0; i < GetNumChildren(); i++ )
{
if( GetChild(i) )
{
GetChild(i)->ISetNetGroupRecur(netGroup);
}
}
}
void plCoordinateInterface::Read(hsStream* stream, hsResMgr* mgr)
{
plObjInterface::Read(stream, mgr);
fLocalToParent.Read(stream);
fParentToLocal.Read(stream);
fLocalToWorld.Read(stream);
fWorldToLocal.Read(stream);
int n = stream->ReadLE32();
int i;
for( i = 0; i < n; i++ )
{
plIntRefMsg* refMsg = new plIntRefMsg(GetKey(), plRefMsg::kOnCreate, -1, plIntRefMsg::kChildObject);
mgr->ReadKeyNotifyMe(stream,refMsg, plRefFlags::kPassiveRef);
}
}
void plCoordinateInterface::Write(hsStream* stream, hsResMgr* mgr)
{
plObjInterface::Write(stream, mgr);
fLocalToParent.Write(stream);
fParentToLocal.Write(stream);
fLocalToWorld.Write(stream);
fWorldToLocal.Write(stream);
stream->WriteLE32(fChildren.GetCount());
int i;
for( i = 0; i < fChildren.GetCount(); i++ )
mgr->WriteKey(stream, fChildren[i]);
}
hsBool plCoordinateInterface::MsgReceive(plMessage* msg)
{
hsBool retVal = false;
plIntRefMsg* intRefMsg;
plCorrectionMsg* corrMsg;
// warp message
plWarpMsg* pWarpMsg = plWarpMsg::ConvertNoRef(msg);
if (pWarpMsg)
{
hsMatrix44 l2w = pWarpMsg->GetTransform();
hsMatrix44 inv;
l2w.GetInverse(&inv);
WarpToWorld(l2w,inv);
if (pWarpMsg->GetWarpFlags() & plWarpMsg::kFlushTransform)
ITransformChanged(false, kReasonUnknown, false);
return true;
}
else if((intRefMsg = plIntRefMsg::ConvertNoRef(msg)))
{
switch( intRefMsg->fType )
{
case plIntRefMsg::kChildObject:
case plIntRefMsg::kChild:
{
plSceneObject* co = nil;
if( intRefMsg->fType == plIntRefMsg::kChildObject )
{
co = plSceneObject::ConvertNoRef(intRefMsg->GetRef());
}
else
{
plCoordinateInterface* ci = plCoordinateInterface::ConvertNoRef(intRefMsg->GetRef());
co = ci ? ci->IGetOwner() : nil;
}
if( intRefMsg->GetContext() & (plRefMsg::kOnCreate|plRefMsg::kOnReplace) )
{
ISetChild(co, intRefMsg->fWhich);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnDestroy )
{
IRemoveChild(co);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnRequest )
{
IAttachChild(co, kMaintainWorldPosition|kMaintainSceneNode);
}
else if( intRefMsg->GetContext() & plRefMsg::kOnRemove )
{
IDetachChild(co, kMaintainWorldPosition|kMaintainSceneNode);
}
}
return true;
default:
break;
}
}
else if((corrMsg = plCorrectionMsg::ConvertNoRef(msg)))
{
SetTransformPhysical(corrMsg->fLocalToWorld, corrMsg->fWorldToLocal);
if(corrMsg->fDirtySynch)
{
if (IGetOwner())
IGetOwner()->DirtySynchState(kSDLPhysical, 0);
}
return true;
}
return plObjInterface::MsgReceive(msg);
}