132 lines
2.9 KiB
C++
132 lines
2.9 KiB
C++
// Copyright (C) 2013 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Core module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Core/Resource.hpp>
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#include <Nazara/Core/Config.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Core/ResourceListener.hpp>
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#include <Nazara/Utility/VertexDeclaration.hpp>
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#include <typeinfo>
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#include <Nazara/Core/Debug.hpp>
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NzResource::NzResource(bool persistent) :
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m_resourcePersistent(persistent),
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m_resourceReferenceCount(0)
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{
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}
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NzResource::~NzResource()
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{
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EnsureResourceListenerUpdate();
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for (const NzResourceEntry& entry : m_resourceListenersCache)
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entry.listener->OnResourceReleased(this, entry.index);
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#if NAZARA_CORE_SAFE
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if (m_resourceReferenceCount > 0)
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NazaraWarning("Resource destroyed while still referenced " + NzString::Number(m_resourceReferenceCount) + " time(s)");
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#endif
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}
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void NzResource::AddResourceListener(NzResourceListener* listener, int index) const
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{
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NazaraLock(m_mutex)
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if (m_resourceListeners.insert(NzResourceEntry(listener, index)).second)
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{
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m_resourceListenerUpdated = false;
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// AddResourceReference()
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m_resourceReferenceCount++;
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}
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}
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void NzResource::AddResourceReference() const
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{
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m_resourceReferenceCount++;
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}
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unsigned int NzResource::GetResourceReferenceCount() const
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{
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return m_resourceReferenceCount;
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}
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bool NzResource::IsPersistent() const
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{
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return m_resourcePersistent;
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}
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bool NzResource::RemoveResourceListener(NzResourceListener* listener) const
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{
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NazaraMutexLock(m_mutex);
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if (m_resourceListeners.erase(listener) != 0)
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m_resourceListenerUpdated = false;
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else
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NazaraError(NzString::Pointer(listener) + " is not a listener of " + NzString::Pointer(this));
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return RemoveResourceReference();
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}
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bool NzResource::RemoveResourceReference() const
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{
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#if NAZARA_CORE_SAFE
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if (m_resourceReferenceCount == 0)
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{
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NazaraError("Impossible to remove reference (Ref. counter is already 0)");
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return false;
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}
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#endif
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if (--m_resourceReferenceCount == 0 && !m_resourcePersistent)
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{
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delete this; // Suicide
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return true;
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}
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else
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return false;
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}
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bool NzResource::SetPersistent(bool persistent, bool checkReferenceCount)
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{
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m_resourcePersistent = persistent;
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if (checkReferenceCount && !persistent && m_resourceReferenceCount == 0)
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{
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delete this;
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return true;
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}
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else
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return false;
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}
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void NzResource::NotifyCreated()
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{
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NazaraLock(m_mutex)
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EnsureResourceListenerUpdate();
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for (const NzResourceEntry& entry : m_resourceListenersCache)
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entry.listener->OnResourceCreated(this, entry.index);
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}
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void NzResource::NotifyDestroy()
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{
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NazaraLock(m_mutex)
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EnsureResourceListenerUpdate();
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for (const NzResourceEntry& entry : m_resourceListenersCache)
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entry.listener->OnResourceDestroy(this, entry.index);
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}
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void NzResource::EnsureResourceListenerUpdate() const
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{
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// Déjà bloqué par une mutex
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if (!m_resourceListenerUpdated)
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{
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m_resourceListenersCache = m_resourceListeners;
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m_resourceListenerUpdated = true;
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}
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}
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