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141 lines
4.1 KiB
141 lines
4.1 KiB
//---------------------------------------------------------------------------
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// CacheList.cpp - manages list of CRenderCache objects
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//---------------------------------------------------------------------------
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#include "stdafx.h"
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#include "CacheList.h"
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//---------------------------------------------------------------------------
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DWORD _tls_CacheListIndex = 0xffffffff; // index to tls pObjectPool
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//---------------------------------------------------------------------------
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CCacheList::CCacheList()
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{
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Log(LOG_CACHE, L"CCacheList: CREATED cache list for this thread");
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}
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//---------------------------------------------------------------------------
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CCacheList::~CCacheList()
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{
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for (int i=0; i < _CacheEntries.m_nSize; i++)
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{
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if (_CacheEntries[i])
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delete _CacheEntries[i];
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}
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Log(LOG_CACHE, L"~CCacheList: DELETED cache list for this thread");
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}
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//---------------------------------------------------------------------------
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HRESULT CCacheList::GetCacheObject(CRenderObj *pRenderObj, int iSlot, CRenderCache **ppCache)
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{
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static int iPassCount = 0;
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HRESULT hr = S_OK;
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CRenderCache *pCache;
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if (iSlot >= _CacheEntries.m_nSize)
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{
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hr = Resize(iSlot);
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if (FAILED(hr))
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goto exit;
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}
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pCache = _CacheEntries[iSlot];
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//---- is this an old object (old objects are freed on discovery) ----
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if (pCache)
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{
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BOOL fBad = (pRenderObj->_iUniqueId != pCache->_iUniqueId);
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if (! fBad)
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{
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//---- verify integrity of cache/render design ----
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if (pRenderObj != pCache->_pRenderObj)
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{
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// should never happen
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Log(LOG_ERROR, L"cache object doesn't match CRenderObj");
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fBad = TRUE;
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}
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}
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if (fBad)
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{
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Log(LOG_CACHE, L"GetCacheObject: deleting OLD OBJECT (slot=%d)", iSlot);
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delete pCache;
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pCache = NULL;
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_CacheEntries[iSlot] = NULL;
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}
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}
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//---- create an object on demand ----
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if (! pCache)
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{
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Log(LOG_CACHE, L"GetCacheObject: creating cache obj ON DEMAND (slot=%d)", iSlot);
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pCache = new CRenderCache(pRenderObj, pRenderObj->_iUniqueId);
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if (! pCache)
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{
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hr = MakeError32(E_OUTOFMEMORY);
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goto exit;
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}
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_CacheEntries[iSlot] = pCache;
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ASSERT(pRenderObj == pCache->_pRenderObj);
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}
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else
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{
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Log(LOG_CACHE, L"GetCacheObject: using EXISTING OBJ (slot=%d)", iSlot);
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}
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*ppCache = pCache;
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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HRESULT CCacheList::Resize(int iMaxSlotNum)
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{
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HRESULT hr = S_OK;
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Log(LOG_CACHE, L"CCacheList::Resize: new MaxSlot=%d", iMaxSlotNum);
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int iOldSize = _CacheEntries.m_nSize;
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if (iMaxSlotNum >= iOldSize)
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{
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typedef CRenderCache *Entry;
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Entry *pNew = (Entry *)realloc(_CacheEntries.m_aT,
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(iMaxSlotNum+1) * sizeof(Entry));
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if (! pNew)
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hr = MakeError32(E_OUTOFMEMORY);
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else
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{
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_CacheEntries.m_nAllocSize = iMaxSlotNum + 1;
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_CacheEntries.m_aT = pNew;
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_CacheEntries.m_nSize = iMaxSlotNum + 1;
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for (int i=iOldSize; i < _CacheEntries.m_nSize; i++)
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_CacheEntries[i] = NULL;
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}
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}
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return hr;
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}
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//---------------------------------------------------------------------------
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CCacheList *GetTlsCacheList(BOOL fOkToCreate)
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{
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CCacheList *pList = NULL;
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if (_tls_CacheListIndex != 0xffffffff) // init-ed in ProcessAttach()
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{
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pList = (CCacheList *)TlsGetValue(_tls_CacheListIndex);
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if ((! pList) && (fOkToCreate)) // not yet initialized
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{
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//---- create a thread-local cache list ----
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pList = new CCacheList();
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TlsSetValue(_tls_CacheListIndex, pList);
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}
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}
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return pList;
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}
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//---------------------------------------------------------------------------
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