stream-servers/gl/glestranslator/GLcommon/ShareGroup.cpp - platform/hardware/google/gfxstream - Git at Google

 /*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 #include <GLcommon/ShareGroup.h>
 #include <GLcommon/ObjectNameSpace.h>
 #include <GLcommon/GLEScontext.h>

 #include "base/Lock.h"
 #include "base/Lookup.h"
 #include "GLcommon/FramebufferData.h"

 #include "host-common/logging.h"

 #include <array>
 #include <utility>

 static constexpr int toIndex(NamedObjectType type) {
     return static_cast<int>(type);
 }

 struct ShareGroup::ObjectDataAutoLock {
     ObjectDataAutoLock(ShareGroup* self) : self(self) {
         self->lockObjectData();
     }
     ~ObjectDataAutoLock() {
         self->unlockObjectData();
     }

     ShareGroup* self;
 };

 ShareGroup::ShareGroup(GlobalNameSpace *globalNameSpace,
                        uint64_t sharedGroupID,
                        android::base::Stream* stream,
                        const ObjectData::loadObject_t& loadObject) :
                        m_sharedGroupID(sharedGroupID) {
     ObjectDataAutoLock lock(this);
     for (int i = 0; i < toIndex(NamedObjectType::NUM_OBJECT_TYPES);
          i++) {
         m_nameSpace[i] = new NameSpace(static_cast<NamedObjectType>(i),
                                        globalNameSpace, stream, loadObject);
     }
     if (stream) {
         m_needLoadRestore = true;
         int i = 0;
         for (auto ns : m_nameSpace) {
             GL_LOG("ShareGroup::%s: %p: start restore namespace for type %d\n", __func__, this, i);
             ns->postLoad(
                     [this](NamedObjectType p_type, ObjectLocalName p_localName) {
                         return this->getObjectDataPtrNoLock(p_type, p_localName);
                 });
             GL_LOG("ShareGroup::%s: %p: finish restore namespace for type %d\n", __func__, this, i);
             ++i;
         }
     }
 }

 void ShareGroup::preSave(GlobalNameSpace *globalNameSpace) {
     ObjectDataAutoLock lock(this);
     if (m_saveStage == PreSaved) return;
     assert(m_saveStage == Empty);
     m_saveStage = PreSaved;
     m_nameSpace[(int)NamedObjectType::TEXTURE]->preSave(globalNameSpace);
 }

 void ShareGroup::onSave(android::base::Stream* stream) {
     // we do not save m_nameSpace
     ObjectDataAutoLock lock(this);
     if (m_saveStage == Saved) return;
     assert(m_saveStage == PreSaved);
     m_saveStage = Saved;
     int i = 0;
     for (auto ns : m_nameSpace) {
         GL_LOG("ShareGroup::%s: %p: start saving type %d\n", __func__, this, i);
         ns->onSave(stream);
         GL_LOG("ShareGroup::%s: %p: finish saving type %d\n", __func__, this, i);
         ++i;
     }
 }

 void ShareGroup::postSave(android::base::Stream* stream) {
     (void)stream;
     m_saveStage = Empty;
     // We need to mark the textures dirty, for those that has been bound to
     // a potential render target.
     NameSpace* renderbufferNs = m_nameSpace[(int)NamedObjectType::RENDERBUFFER];
     for (ObjectDataMap::const_iterator it = renderbufferNs->objDataMapBegin();
         it != renderbufferNs->objDataMapEnd();
         it ++) {
         RenderbufferData* rbData = (RenderbufferData*)it->second.get();
         rbData->makeTextureDirty();
     }
 }

 void ShareGroup::postLoadRestore() {
     android::base::AutoLock lock(m_restoreLock);
     if (m_needLoadRestore) {
         int i = 0;
         for (auto ns : m_nameSpace) {
             GL_LOG("ShareGroup::%s: %p: start post load restore namespace for type %d\n", __func__, this, i);
             ns->postLoadRestore([this](NamedObjectType p_type,
                                 ObjectLocalName p_localName) {
                                     return getGlobalName(p_type, p_localName);
                             });
             GL_LOG("ShareGroup::%s: %p: end post load restore namespace for type %d\n", __func__, this, i);
             ++i;
         }
         m_needLoadRestore = false;
     }
 }

 bool ShareGroup::needRestore() {
     return m_needLoadRestore;
 }

 void ShareGroup::lockObjectData() {
     while (m_objectsDataLock.test_and_set(std::memory_order_acquire)) {
         ;
     }
 }

 void ShareGroup::unlockObjectData() {
     m_objectsDataLock.clear(std::memory_order_release);
 }

 ShareGroup::~ShareGroup()
 {
     {
         android::base::AutoLock lock(m_namespaceLock);
         ObjectDataAutoLock objDataLock(this);
         for (auto n : m_nameSpace) {
             delete n;
         }
     }
 }

 ObjectLocalName
 ShareGroup::genName(GenNameInfo genNameInfo,
                     ObjectLocalName p_localName,
                     bool genLocal)
 {
     assert(genNameInfo.m_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(genNameInfo.m_type) >=
         toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return 0;
     }

     android::base::AutoLock lock(m_namespaceLock);
     ObjectLocalName localName =
             m_nameSpace[toIndex(genNameInfo.m_type)]->genName(
                                                     genNameInfo,
                                                     p_localName, genLocal);
     return localName;
 }

 ObjectLocalName ShareGroup::genName(NamedObjectType namedObjectType,
                                     ObjectLocalName p_localName,
                                     bool genLocal) {
     return genName(GenNameInfo(namedObjectType), p_localName, genLocal);
 }

 ObjectLocalName ShareGroup::genName(ShaderProgramType shaderProgramType,
                                     ObjectLocalName p_localName,
                                     bool genLocal,
                                     GLuint existingGlobal) {
     return genName(GenNameInfo(shaderProgramType, existingGlobal), p_localName, genLocal);
 }

 unsigned int
 ShareGroup::getGlobalName(NamedObjectType p_type,
                           ObjectLocalName p_localName)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return 0;
     }
     android::base::AutoLock lock(m_namespaceLock);
     return m_nameSpace[toIndex(p_type)]->getGlobalName(p_localName);
 }

 ObjectLocalName
 ShareGroup::getLocalName(NamedObjectType p_type,
                          unsigned int p_globalName)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return 0;
     }

     android::base::AutoLock lock(m_namespaceLock);
     return m_nameSpace[toIndex(p_type)]->getLocalName(p_globalName);
 }

 NamedObjectPtr ShareGroup::getNamedObject(NamedObjectType p_type,
                                           ObjectLocalName p_localName) {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return 0;
     }

     android::base::AutoLock lock(m_namespaceLock);
     return m_nameSpace[toIndex(p_type)]->getNamedObject(p_localName);
 }

 void
 ShareGroup::deleteName(NamedObjectType p_type, ObjectLocalName p_localName)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return;
     }

     android::base::AutoLock lock(m_namespaceLock);
     ObjectDataAutoLock objDataLock(this);
     m_nameSpace[toIndex(p_type)]->deleteName(p_localName);
 }

 bool
 ShareGroup::isObject(NamedObjectType p_type, ObjectLocalName p_localName)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return 0;
     }

     android::base::AutoLock lock(m_namespaceLock);
     return m_nameSpace[toIndex(p_type)]->isObject(p_localName);
 }

 void
 ShareGroup::replaceGlobalObject(NamedObjectType p_type,
                               ObjectLocalName p_localName,
                               NamedObjectPtr p_globalObject)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return;
     }

     android::base::AutoLock lock(m_namespaceLock);
     m_nameSpace[toIndex(p_type)]->replaceGlobalObject(p_localName,
                                                                p_globalObject);
 }

 void
 ShareGroup::setGlobalObject(NamedObjectType p_type,
                               ObjectLocalName p_localName,
                               NamedObjectPtr p_globalObject)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return;
     }

     android::base::AutoLock lock(m_namespaceLock);
     m_nameSpace[toIndex(p_type)]->setGlobalObject(p_localName,
                                                   p_globalObject);
 }

 void
 ShareGroup::setObjectData(NamedObjectType p_type,
                           ObjectLocalName p_localName,
                           ObjectDataPtr data) {
     ObjectDataAutoLock lock(this);
     setObjectDataLocked(p_type, p_localName, std::move(data));
 }

 void
 ShareGroup::setObjectDataLocked(NamedObjectType p_type,
                           ObjectLocalName p_localName,
                           ObjectDataPtr&& data)
 {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
         return;
     }
     m_nameSpace[toIndex(p_type)]->setObjectData(p_localName, data);
 }

 const ObjectDataPtr& ShareGroup::getObjectDataPtrNoLock(
         NamedObjectType p_type, ObjectLocalName p_localName) {
     assert(p_type != NamedObjectType::FRAMEBUFFER);
     return m_nameSpace[toIndex(p_type)]->getObjectDataPtr(p_localName);
 }

 ObjectData* ShareGroup::getObjectData(NamedObjectType p_type,
                           ObjectLocalName p_localName) {
     if (toIndex(p_type) >=
         toIndex(NamedObjectType::NUM_OBJECT_TYPES))
         return nullptr;

     ObjectDataAutoLock lock(this);
     return getObjectDataPtrNoLock(p_type, p_localName).get();
 }

 ObjectDataPtr ShareGroup::getObjectDataPtr(NamedObjectType p_type,
                           ObjectLocalName p_localName)
 {
     if (toIndex(p_type) >=
         toIndex(NamedObjectType::NUM_OBJECT_TYPES))
         return {};

     ObjectDataAutoLock lock(this);
     return getObjectDataPtrNoLock(p_type, p_localName);
 }

 #define CC_LIKELY( exp )    (__builtin_expect( !!(exp), true ))
 #define CC_UNLIKELY( exp )  (__builtin_expect( !!(exp), false ))

 unsigned int ShareGroup::ensureObjectOnBind(NamedObjectType p_type, ObjectLocalName p_localName) {
     android::base::AutoLock lock(m_namespaceLock);
     ObjectDataAutoLock objDataLock(this);

     auto ns = m_nameSpace[toIndex(p_type)];

     bool isObj;
     unsigned int globalName = ns->getGlobalName(p_localName, &isObj);

     if (CC_LIKELY(isObj)) {
         bool everBound = ns->everBound(p_localName);
         if (CC_LIKELY(everBound)) return globalName;

         auto ptr = ns->getObjectDataPtr(p_localName);

         if (ptr) {
             switch (p_type) {
                 case NamedObjectType::VERTEXBUFFER: {
                     auto vbo = ((GLESbuffer*)(ptr.get()));
                     vbo->setBinded();
                     break;
                 }
                 // TODO: Add other object types here
                 default:
                     fprintf(stderr, "%s: Warning: Unhandled object type 0x%x\n",
                             __func__, (uint32_t)p_type);
                     break;
             }
         }

         ns->setBoundAtLeastOnce(p_localName);
         return globalName;
     }

     // No such object, generate one and bind it
     bool genLocal = false;
     auto gi = GenNameInfo(p_type);
     ns->genName( gi, p_localName, genLocal);

     switch (p_type) {
         case NamedObjectType::VERTEXBUFFER: {
             auto vbo = new GLESbuffer;
             vbo->setBinded();
             ns->setObjectData(p_localName, ObjectDataPtr(vbo));
             break;
         }
         // TODO: Add other object types here
         default:
             fprintf(stderr, "%s: Warning: Unhandled object type 0x%x\n",
                     __func__, (uint32_t)p_type);
             break;
     }

     ns->setBoundAtLeastOnce(p_localName);
     return (uint32_t)(ns->getGlobalName(p_localName));
 }

 ObjectNameManager::ObjectNameManager(GlobalNameSpace *globalNameSpace) :
     m_globalNameSpace(globalNameSpace) {}

 ShareGroupPtr
 ObjectNameManager::createShareGroup(void *p_groupName, uint64_t sharedGroupID,
         android::base::Stream* stream, const ObjectData::loadObject_t& loadObject)
 {
     android::base::AutoLock lock(m_lock);

     ShareGroupPtr& shareGroupReturn = m_groups[p_groupName];
     if (!shareGroupReturn) {
         if (!sharedGroupID) {
             while (m_nextSharedGroupID == 0 ||
                    android::base::contains(m_usedSharedGroupIDs,
                                            m_nextSharedGroupID)) {
                 m_nextSharedGroupID ++;
             }
             sharedGroupID = m_nextSharedGroupID;
             m_usedSharedGroupIDs.insert(sharedGroupID);
             ++m_nextSharedGroupID;
         } else {
             assert(!m_usedSharedGroupIDs.count(sharedGroupID));
             m_usedSharedGroupIDs.insert(sharedGroupID);
         }
         shareGroupReturn.reset(new ShareGroup(m_globalNameSpace, sharedGroupID,
                                               stream, loadObject));
     } else {
         assert(sharedGroupID == 0
             || sharedGroupID == shareGroupReturn->getId());
     }

     return shareGroupReturn;
 }

 ShareGroupPtr
 ObjectNameManager::getShareGroup(void *p_groupName)
 {
     android::base::AutoLock lock(m_lock);

     ShareGroupPtr shareGroupReturn;

     ShareGroupsMap::iterator s( m_groups.find(p_groupName) );
     if (s != m_groups.end()) {
         shareGroupReturn = (*s).second;
     }

     return shareGroupReturn;
 }

 ShareGroupPtr
 ObjectNameManager::attachShareGroup(void *p_groupName,
                                     void *p_existingGroupName)
 {
     android::base::AutoLock lock(m_lock);

     ShareGroupsMap::iterator s( m_groups.find(p_existingGroupName) );
     if (s == m_groups.end()) {
         // ShareGroup is not found !!!
         return ShareGroupPtr();
     }

     ShareGroupPtr shareGroupReturn((*s).second);
     if (m_groups.find(p_groupName) == m_groups.end()) {
         m_groups.emplace(p_groupName, shareGroupReturn);
         m_usedSharedGroupIDs.insert(shareGroupReturn->getId());
     }
     return shareGroupReturn;
 }

 ShareGroupPtr ObjectNameManager::attachOrCreateShareGroup(void *p_groupName,
         uint64_t p_existingGroupID, android::base::Stream* stream,
         const ObjectData::loadObject_t& loadObject) {
     assert(m_groups.find(p_groupName) == m_groups.end());
     ShareGroupsMap::iterator ite = p_existingGroupID ? m_groups.begin()
                                                      : m_groups.end();
     while (ite != m_groups.end() && ite->second->getId() != p_existingGroupID) {
         ++ite;
     }
     if (ite == m_groups.end()) {
         return createShareGroup(p_groupName, p_existingGroupID, stream,
                                 loadObject);
     } else {
         return attachShareGroup(p_groupName, ite->first);
     }
 }

 void
 ObjectNameManager::deleteShareGroup(void *p_groupName)
 {
     android::base::AutoLock lock(m_lock);
     auto sharedGroup = m_groups.find(p_groupName);
     if (sharedGroup == m_groups.end()) return;
     m_usedSharedGroupIDs.erase(sharedGroup->second->getId());
     m_groups.erase(sharedGroup);
 }

 void *ObjectNameManager::getGlobalContext()
 {
     android::base::AutoLock lock(m_lock);
     return m_groups.empty() ? nullptr : m_groups.begin()->first;
 }

 void ObjectNameManager::preSave() {
     for (auto& shareGroup : m_groups) {
         shareGroup.second->preSave(m_globalNameSpace);
     }
 }
	/*
	* Copyright (C) 2016 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	#include <GLcommon/ShareGroup.h>
	#include <GLcommon/ObjectNameSpace.h>
	#include <GLcommon/GLEScontext.h>

	#include "base/Lock.h"
	#include "base/Lookup.h"
	#include "GLcommon/FramebufferData.h"

	#include "host-common/logging.h"

	#include <array>
	#include <utility>

	static constexpr int toIndex(NamedObjectType type) {
	return static_cast<int>(type);
	}

	struct ShareGroup::ObjectDataAutoLock {
	ObjectDataAutoLock(ShareGroup* self) : self(self) {
	self->lockObjectData();
	}
	~ObjectDataAutoLock() {
	self->unlockObjectData();
	}

	ShareGroup* self;
	};

	ShareGroup::ShareGroup(GlobalNameSpace *globalNameSpace,
	uint64_t sharedGroupID,
	android::base::Stream* stream,
	const ObjectData::loadObject_t& loadObject) :
	m_sharedGroupID(sharedGroupID) {
	ObjectDataAutoLock lock(this);
	for (int i = 0; i < toIndex(NamedObjectType::NUM_OBJECT_TYPES);
	i++) {
	m_nameSpace[i] = new NameSpace(static_cast<NamedObjectType>(i),
	globalNameSpace, stream, loadObject);
	}
	if (stream) {
	m_needLoadRestore = true;
	int i = 0;
	for (auto ns : m_nameSpace) {
	GL_LOG("ShareGroup::%s: %p: start restore namespace for type %d\n", __func__, this, i);
	ns->postLoad(
	[this](NamedObjectType p_type, ObjectLocalName p_localName) {
	return this->getObjectDataPtrNoLock(p_type, p_localName);
	});
	GL_LOG("ShareGroup::%s: %p: finish restore namespace for type %d\n", __func__, this, i);
	++i;
	}
	}
	}

	void ShareGroup::preSave(GlobalNameSpace *globalNameSpace) {
	ObjectDataAutoLock lock(this);
	if (m_saveStage == PreSaved) return;
	assert(m_saveStage == Empty);
	m_saveStage = PreSaved;
	m_nameSpace[(int)NamedObjectType::TEXTURE]->preSave(globalNameSpace);
	}

	void ShareGroup::onSave(android::base::Stream* stream) {
	// we do not save m_nameSpace
	ObjectDataAutoLock lock(this);
	if (m_saveStage == Saved) return;
	assert(m_saveStage == PreSaved);
	m_saveStage = Saved;
	int i = 0;
	for (auto ns : m_nameSpace) {
	GL_LOG("ShareGroup::%s: %p: start saving type %d\n", __func__, this, i);
	ns->onSave(stream);
	GL_LOG("ShareGroup::%s: %p: finish saving type %d\n", __func__, this, i);
	++i;
	}
	}

	void ShareGroup::postSave(android::base::Stream* stream) {
	(void)stream;
	m_saveStage = Empty;
	// We need to mark the textures dirty, for those that has been bound to
	// a potential render target.
	NameSpace* renderbufferNs = m_nameSpace[(int)NamedObjectType::RENDERBUFFER];
	for (ObjectDataMap::const_iterator it = renderbufferNs->objDataMapBegin();
	it != renderbufferNs->objDataMapEnd();
	it ++) {
	RenderbufferData* rbData = (RenderbufferData*)it->second.get();
	rbData->makeTextureDirty();
	}
	}

	void ShareGroup::postLoadRestore() {
	android::base::AutoLock lock(m_restoreLock);
	if (m_needLoadRestore) {
	int i = 0;
	for (auto ns : m_nameSpace) {
	GL_LOG("ShareGroup::%s: %p: start post load restore namespace for type %d\n", __func__, this, i);
	ns->postLoadRestore([this](NamedObjectType p_type,
	ObjectLocalName p_localName) {
	return getGlobalName(p_type, p_localName);
	});
	GL_LOG("ShareGroup::%s: %p: end post load restore namespace for type %d\n", __func__, this, i);
	++i;
	}
	m_needLoadRestore = false;
	}
	}

	bool ShareGroup::needRestore() {
	return m_needLoadRestore;
	}

	void ShareGroup::lockObjectData() {
	while (m_objectsDataLock.test_and_set(std::memory_order_acquire)) {
	;
	}
	}

	void ShareGroup::unlockObjectData() {
	m_objectsDataLock.clear(std::memory_order_release);
	}

	ShareGroup::~ShareGroup()
	{
	{
	android::base::AutoLock lock(m_namespaceLock);
	ObjectDataAutoLock objDataLock(this);
	for (auto n : m_nameSpace) {
	delete n;
	}
	}
	}

	ObjectLocalName
	ShareGroup::genName(GenNameInfo genNameInfo,
	ObjectLocalName p_localName,
	bool genLocal)
	{
	assert(genNameInfo.m_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(genNameInfo.m_type) >=
	toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return 0;
	}

	android::base::AutoLock lock(m_namespaceLock);
	ObjectLocalName localName =
	m_nameSpace[toIndex(genNameInfo.m_type)]->genName(
	genNameInfo,
	p_localName, genLocal);
	return localName;
	}

	ObjectLocalName ShareGroup::genName(NamedObjectType namedObjectType,
	ObjectLocalName p_localName,
	bool genLocal) {
	return genName(GenNameInfo(namedObjectType), p_localName, genLocal);
	}

	ObjectLocalName ShareGroup::genName(ShaderProgramType shaderProgramType,
	ObjectLocalName p_localName,
	bool genLocal,
	GLuint existingGlobal) {
	return genName(GenNameInfo(shaderProgramType, existingGlobal), p_localName, genLocal);
	}

	unsigned int
	ShareGroup::getGlobalName(NamedObjectType p_type,
	ObjectLocalName p_localName)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return 0;
	}
	android::base::AutoLock lock(m_namespaceLock);
	return m_nameSpace[toIndex(p_type)]->getGlobalName(p_localName);
	}

	ObjectLocalName
	ShareGroup::getLocalName(NamedObjectType p_type,
	unsigned int p_globalName)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return 0;
	}

	android::base::AutoLock lock(m_namespaceLock);
	return m_nameSpace[toIndex(p_type)]->getLocalName(p_globalName);
	}

	NamedObjectPtr ShareGroup::getNamedObject(NamedObjectType p_type,
	ObjectLocalName p_localName) {
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return 0;
	}

	android::base::AutoLock lock(m_namespaceLock);
	return m_nameSpace[toIndex(p_type)]->getNamedObject(p_localName);
	}

	void
	ShareGroup::deleteName(NamedObjectType p_type, ObjectLocalName p_localName)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return;
	}

	android::base::AutoLock lock(m_namespaceLock);
	ObjectDataAutoLock objDataLock(this);
	m_nameSpace[toIndex(p_type)]->deleteName(p_localName);
	}

	bool
	ShareGroup::isObject(NamedObjectType p_type, ObjectLocalName p_localName)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return 0;
	}

	android::base::AutoLock lock(m_namespaceLock);
	return m_nameSpace[toIndex(p_type)]->isObject(p_localName);
	}

	void
	ShareGroup::replaceGlobalObject(NamedObjectType p_type,
	ObjectLocalName p_localName,
	NamedObjectPtr p_globalObject)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return;
	}

	android::base::AutoLock lock(m_namespaceLock);
	m_nameSpace[toIndex(p_type)]->replaceGlobalObject(p_localName,
	p_globalObject);
	}

	void
	ShareGroup::setGlobalObject(NamedObjectType p_type,
	ObjectLocalName p_localName,
	NamedObjectPtr p_globalObject)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return;
	}

	android::base::AutoLock lock(m_namespaceLock);
	m_nameSpace[toIndex(p_type)]->setGlobalObject(p_localName,
	p_globalObject);
	}

	void
	ShareGroup::setObjectData(NamedObjectType p_type,
	ObjectLocalName p_localName,
	ObjectDataPtr data) {
	ObjectDataAutoLock lock(this);
	setObjectDataLocked(p_type, p_localName, std::move(data));
	}

	void
	ShareGroup::setObjectDataLocked(NamedObjectType p_type,
	ObjectLocalName p_localName,
	ObjectDataPtr&& data)
	{
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	if (toIndex(p_type) >= toIndex(NamedObjectType::NUM_OBJECT_TYPES)) {
	return;
	}
	m_nameSpace[toIndex(p_type)]->setObjectData(p_localName, data);
	}

	const ObjectDataPtr& ShareGroup::getObjectDataPtrNoLock(
	NamedObjectType p_type, ObjectLocalName p_localName) {
	assert(p_type != NamedObjectType::FRAMEBUFFER);
	return m_nameSpace[toIndex(p_type)]->getObjectDataPtr(p_localName);
	}

	ObjectData* ShareGroup::getObjectData(NamedObjectType p_type,
	ObjectLocalName p_localName) {
	if (toIndex(p_type) >=
	toIndex(NamedObjectType::NUM_OBJECT_TYPES))
	return nullptr;

	ObjectDataAutoLock lock(this);
	return getObjectDataPtrNoLock(p_type, p_localName).get();
	}

	ObjectDataPtr ShareGroup::getObjectDataPtr(NamedObjectType p_type,
	ObjectLocalName p_localName)
	{
	if (toIndex(p_type) >=
	toIndex(NamedObjectType::NUM_OBJECT_TYPES))
	return {};

	ObjectDataAutoLock lock(this);
	return getObjectDataPtrNoLock(p_type, p_localName);
	}

	#define CC_LIKELY( exp ) (__builtin_expect( !!(exp), true ))
	#define CC_UNLIKELY( exp ) (__builtin_expect( !!(exp), false ))

	unsigned int ShareGroup::ensureObjectOnBind(NamedObjectType p_type, ObjectLocalName p_localName) {
	android::base::AutoLock lock(m_namespaceLock);
	ObjectDataAutoLock objDataLock(this);

	auto ns = m_nameSpace[toIndex(p_type)];

	bool isObj;
	unsigned int globalName = ns->getGlobalName(p_localName, &isObj);

	if (CC_LIKELY(isObj)) {
	bool everBound = ns->everBound(p_localName);
	if (CC_LIKELY(everBound)) return globalName;

	auto ptr = ns->getObjectDataPtr(p_localName);

	if (ptr) {
	switch (p_type) {
	case NamedObjectType::VERTEXBUFFER: {
	auto vbo = ((GLESbuffer*)(ptr.get()));
	vbo->setBinded();
	break;
	}
	// TODO: Add other object types here
	default:
	fprintf(stderr, "%s: Warning: Unhandled object type 0x%x\n",
	__func__, (uint32_t)p_type);
	break;
	}
	}

	ns->setBoundAtLeastOnce(p_localName);
	return globalName;
	}

	// No such object, generate one and bind it
	bool genLocal = false;
	auto gi = GenNameInfo(p_type);
	ns->genName( gi, p_localName, genLocal);

	switch (p_type) {
	case NamedObjectType::VERTEXBUFFER: {
	auto vbo = new GLESbuffer;
	vbo->setBinded();
	ns->setObjectData(p_localName, ObjectDataPtr(vbo));
	break;
	}
	// TODO: Add other object types here
	default:
	fprintf(stderr, "%s: Warning: Unhandled object type 0x%x\n",
	__func__, (uint32_t)p_type);
	break;
	}

	ns->setBoundAtLeastOnce(p_localName);
	return (uint32_t)(ns->getGlobalName(p_localName));
	}

	ObjectNameManager::ObjectNameManager(GlobalNameSpace *globalNameSpace) :
	m_globalNameSpace(globalNameSpace) {}

	ShareGroupPtr
	ObjectNameManager::createShareGroup(void *p_groupName, uint64_t sharedGroupID,
	android::base::Stream* stream, const ObjectData::loadObject_t& loadObject)
	{
	android::base::AutoLock lock(m_lock);

	ShareGroupPtr& shareGroupReturn = m_groups[p_groupName];
	if (!shareGroupReturn) {
	if (!sharedGroupID) {
	while (m_nextSharedGroupID == 0 \|\|
	android::base::contains(m_usedSharedGroupIDs,
	m_nextSharedGroupID)) {
	m_nextSharedGroupID ++;
	}
	sharedGroupID = m_nextSharedGroupID;
	m_usedSharedGroupIDs.insert(sharedGroupID);
	++m_nextSharedGroupID;
	} else {
	assert(!m_usedSharedGroupIDs.count(sharedGroupID));
	m_usedSharedGroupIDs.insert(sharedGroupID);
	}
	shareGroupReturn.reset(new ShareGroup(m_globalNameSpace, sharedGroupID,
	stream, loadObject));
	} else {
	assert(sharedGroupID == 0
	\|\| sharedGroupID == shareGroupReturn->getId());
	}

	return shareGroupReturn;
	}

	ShareGroupPtr
	ObjectNameManager::getShareGroup(void *p_groupName)
	{
	android::base::AutoLock lock(m_lock);

	ShareGroupPtr shareGroupReturn;

	ShareGroupsMap::iterator s( m_groups.find(p_groupName) );
	if (s != m_groups.end()) {
	shareGroupReturn = (*s).second;
	}

	return shareGroupReturn;
	}

	ShareGroupPtr
	ObjectNameManager::attachShareGroup(void *p_groupName,
	void *p_existingGroupName)
	{
	android::base::AutoLock lock(m_lock);

	ShareGroupsMap::iterator s( m_groups.find(p_existingGroupName) );
	if (s == m_groups.end()) {
	// ShareGroup is not found !!!
	return ShareGroupPtr();
	}

	ShareGroupPtr shareGroupReturn((*s).second);
	if (m_groups.find(p_groupName) == m_groups.end()) {
	m_groups.emplace(p_groupName, shareGroupReturn);
	m_usedSharedGroupIDs.insert(shareGroupReturn->getId());
	}
	return shareGroupReturn;
	}

	ShareGroupPtr ObjectNameManager::attachOrCreateShareGroup(void *p_groupName,
	uint64_t p_existingGroupID, android::base::Stream* stream,
	const ObjectData::loadObject_t& loadObject) {
	assert(m_groups.find(p_groupName) == m_groups.end());
	ShareGroupsMap::iterator ite = p_existingGroupID ? m_groups.begin()
	: m_groups.end();
	while (ite != m_groups.end() && ite->second->getId() != p_existingGroupID) {
	++ite;
	}
	if (ite == m_groups.end()) {
	return createShareGroup(p_groupName, p_existingGroupID, stream,
	loadObject);
	} else {
	return attachShareGroup(p_groupName, ite->first);
	}
	}

	void
	ObjectNameManager::deleteShareGroup(void *p_groupName)
	{
	android::base::AutoLock lock(m_lock);
	auto sharedGroup = m_groups.find(p_groupName);
	if (sharedGroup == m_groups.end()) return;
	m_usedSharedGroupIDs.erase(sharedGroup->second->getId());
	m_groups.erase(sharedGroup);
	}

	void *ObjectNameManager::getGlobalContext()
	{
	android::base::AutoLock lock(m_lock);
	return m_groups.empty() ? nullptr : m_groups.begin()->first;
	}

	void ObjectNameManager::preSave() {
	for (auto& shareGroup : m_groups) {
	shareGroup.second->preSave(m_globalNameSpace);
	}
	}