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resource_manager.cpp
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100 lines (87 loc) · 3.2 KB
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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2015-2017 Baldur Karlsson
* Copyright (c) 2014 Crytek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "resource_manager.h"
namespace ResourceIDGen
{
static volatile int64_t globalIDCounter = 1;
ResourceId GetNewUniqueID()
{
ResourceId ret;
ret.id = Atomic::Inc64(&globalIDCounter);
return ret;
}
void SetReplayResourceIDs()
{
// separate replay IDs from live IDs by adding a value when replaying.
// 1000000000000000000 live IDs before we overlap replay IDs gives
// almost 32 years generating 100000 IDs per frame at 10000 FPS.
// only add this value once (since we're not |'ing on a bit)
if(globalIDCounter < 1000000000000000000LL)
globalIDCounter =
RDCMAX(int64_t(globalIDCounter), int64_t(globalIDCounter + 1000000000000000000LL));
}
};
bool ResourceRecord::MarkResourceFrameReferenced(ResourceId id, FrameRefType refType)
{
if(id == ResourceId())
return false;
return ResourceManager<void *, void *, ResourceRecord>::MarkReferenced(m_FrameRefs, id, refType);
}
void ResourceRecord::AddResourceReferences(ResourceRecordHandler *mgr)
{
for(auto it = m_FrameRefs.begin(); it != m_FrameRefs.end(); ++it)
{
mgr->MarkResourceFrameReferenced(it->first, it->second);
}
}
void ResourceRecord::Delete(ResourceRecordHandler *mgr)
{
int32_t ref = Atomic::Dec32(&RefCount);
RDCASSERT(ref >= 0);
if(ref <= 0)
{
for(auto it = Parents.begin(); it != Parents.end(); ++it)
(*it)->Delete(mgr);
Parents.clear();
Length = 0;
DataPtr = NULL;
for(auto it = m_FrameRefs.begin(); it != m_FrameRefs.end(); ++it)
{
if(it->second == eFrameRef_Write || it->second == eFrameRef_ReadAndWrite ||
it->second == eFrameRef_ReadBeforeWrite)
{
// lost a write to this resource, must mark it as gpu dirty.
mgr->MarkPendingDirty(it->first);
}
}
DeleteChunks();
if(ResID != ResourceId())
{
mgr->MarkCleanResource(ResID);
mgr->RemoveResourceRecord(ResID);
}
mgr->DestroyResourceRecord(this);
}
}