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Diffstat (limited to 'NvBlast/sdk/toolkit/source/NvBlastTkJointImpl.cpp')
| -rw-r--r-- | NvBlast/sdk/toolkit/source/NvBlastTkJointImpl.cpp | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/NvBlast/sdk/toolkit/source/NvBlastTkJointImpl.cpp b/NvBlast/sdk/toolkit/source/NvBlastTkJointImpl.cpp new file mode 100644 index 0000000..46d6378 --- /dev/null +++ b/NvBlast/sdk/toolkit/source/NvBlastTkJointImpl.cpp @@ -0,0 +1,183 @@ +/* +* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved. +* +* NVIDIA CORPORATION and its licensors retain all intellectual property +* and proprietary rights in and to this software, related documentation +* and any modifications thereto. Any use, reproduction, disclosure or +* distribution of this software and related documentation without an express +* license agreement from NVIDIA CORPORATION is strictly prohibited. +*/ + +#include "NvBlastTkFrameworkImpl.h" +#include "NvBlastTkJointImpl.h" +#include "NvBlastTkActorImpl.h" +#include "NvBlastTkAssetImpl.h" +#include "NvBlastTkFamilyImpl.h" + +#include "Px.h" +#include "PxFileBuf.h" +#include "PxAllocatorCallback.h" + +using namespace physx::general_PxIOStream2; + + +namespace Nv +{ +namespace Blast +{ + +//////// Member functions //////// + +TkJointImpl::TkJointImpl(const TkJointDesc& desc, TkFamilyImpl* owner) : m_owner(owner) +{ + userData = nullptr; + + // Do not fire off a creation event. Creation events will only be fired when a family-internal joint is created. + NVBLAST_ASSERT(desc.families[0] != nullptr || desc.families[1] != nullptr); + NVBLAST_ASSERT(desc.families[0] == nullptr || desc.chunkIndices[0] < static_cast<TkFamilyImpl*>(desc.families[0])->getAssetImpl()->getChunkCount()); + NVBLAST_ASSERT(desc.attachPositions[0].isFinite()); + NVBLAST_ASSERT(desc.families[1] == nullptr || desc.chunkIndices[1] < static_cast<TkFamilyImpl*>(desc.families[1])->getAssetImpl()->getChunkCount()); + NVBLAST_ASSERT(desc.attachPositions[1].isFinite()); + + for (int i = 0; i < 2; ++i) + { + m_data.actors[i] = desc.families[i] != nullptr ? static_cast<TkFamilyImpl*>(desc.families[i])->getActorByChunk(desc.chunkIndices[i]) : nullptr; + m_data.chunkIndices[i] = desc.chunkIndices[i]; + m_data.attachPositions[i] = desc.attachPositions[i]; + m_links[i].m_joint = this; + } + + if (owner == nullptr) + { + TkFrameworkImpl::get()->onCreate(*this); + } +} + + +void TkJointImpl::release() +{ + removeReferencesInActors(); + + if (m_owner != nullptr) + { + // Internal joint + m_owner->releaseJoint(*this); + } + else + { + // External joint + removeReferencesInFamilies(); + TkFrameworkImpl::get()->onDestroy(*this); + NVBLASTTK_DELETE(this, TkJointImpl); + } +} + + +void TkJointImpl::setActors(TkActorImpl* actor0, TkActorImpl* actor1, TkEventQueue* alternateQueue) +{ + NVBLAST_ASSERT(m_data.actors[0] != nullptr || m_data.actors[1] != nullptr); + + const bool unreferenced = (actor0 == nullptr && m_data.actors[0] != nullptr) || (actor1 == nullptr && m_data.actors[1] != nullptr); + + removeReferencesInActors(); + + if (!unreferenced) + { + if (actor0 != nullptr) + { + actor0->addJoint(m_links[0]); + } + + if (actor1 != nullptr && actor1 != actor0) // If the actors are the same, we only need one joint reference + { + actor1->addJoint(m_links[1]); + } + } + + // We do _not_ return if m_data.m_actors[0] == actor0 && m_data.m_actors[1] == actor1 since + // this leads to a bug. This function will only be called when an actor is split. It is + // possible that the two TkActors in a joint are the same as before, but in this case one + // of the actors will be the split actor. Since will be represented by a different + // physical actor, this case still needs to be reported in an event. Returning when neither + // TkActor has changed will prevent that, and lead to unwanted joint disconnection. + + const uint32_t familyToUse = m_data.actors[0] != actor0 ? 0 : 1; + + TkEventQueue* q = alternateQueue == nullptr ? + &static_cast<TkActorImpl*>(m_data.actors[familyToUse])->getFamilyImpl().getQueue() + : alternateQueue; + + const bool jointWasInternal = m_data.actors[0] == m_data.actors[1]; + + if (unreferenced) + { + removeReferencesInFamilies(); + actor0 = actor1 = nullptr; // Make both new actors NULL + } + + if (!jointWasInternal || actor0 != actor1) + { + // The original actors were different, or they are now, signal a joint update + TkJointUpdateEvent* e = q->allocData<TkJointUpdateEvent>(); + e->joint = this; + e->subtype = unreferenced ? TkJointUpdateEvent::Unreferenced : (jointWasInternal ? TkJointUpdateEvent::External : TkJointUpdateEvent::Changed); + m_data.actors[0] = actor0; + m_data.actors[1] = actor1; + q->addEvent(e); + } + else + if (jointWasInternal) + { + // The joint was originally created within the same actor and now it remains within the same actor. + m_data.actors[0] = m_data.actors[1] = actor0; + } +} + + +const TkJointData TkJointImpl::getData() const +{ + return getDataInternal(); +} + + +void TkJointImpl::removeReferencesInActors() +{ + TkActorImpl* actor0 = static_cast<TkActorImpl*>(m_data.actors[0]); + TkActorImpl* actor1 = static_cast<TkActorImpl*>(m_data.actors[1]); + + if (actor0 != nullptr) + { + actor0->removeJoint(m_links[0]); + } + + if (actor1 != nullptr && actor1 != actor0) // If the actors are the same, we only had one joint reference + { + actor1->removeJoint(m_links[1]); + } +} + + +void TkJointImpl::removeReferencesInFamilies() +{ + if (m_owner != nullptr) + { + return; // Only concerned with external joints + } + + NVBLAST_ASSERT(m_data.actors[0] != m_data.actors[1] || m_data.actors[0] == nullptr); // This is enforced by the initial assumption in TkFrameworkImpl::createJoint. + + for (int i = 0; i < 2; ++i) + { + if (m_data.actors[i] != nullptr) + { + TkFamilyImpl& family = static_cast<TkActorImpl*>(m_data.actors[i])->getFamilyImpl(); + TkJointImpl* joint = nullptr; + const bool found = family.deleteExternalJointHandle(joint, getFamilyID(m_data.actors[i ^ 1]), m_data.chunkIndices[i], m_data.chunkIndices[i ^ 1]); + NVBLAST_ASSERT((!found && m_data.actors[i ^ 1] == nullptr) || joint == this); // Might not be found if the actors in a family are in the process of being deleted + NV_UNUSED(found); + } + } +} + +} // namespace Blast +} // namespace Nv |