379 lines
12 KiB
C++
379 lines
12 KiB
C++
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//---------------------------------------------------------------------------
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// RenderList.cpp - manages list of CRemderObj objects
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//---------------------------------------------------------------------------
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#include "stdafx.h"
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#include "RenderList.h"
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#include "Render.h"
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//---------------------------------------------------------------------------
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#define MAKE_HTHEME(recycle, slot) (HTHEME)IntToPtr((recycle << 16) | (slot & 0xffff))
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//---------------------------------------------------------------------------
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CRenderList::CRenderList()
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{
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_iNextUniqueId = 0;
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InitializeCriticalSection(&_csListLock);
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}
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//---------------------------------------------------------------------------
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CRenderList::~CRenderList()
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{
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for (int i=0; i < _RenderEntries.m_nSize; i++)
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{
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//---- ignore refcount here (end of process) ----
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if (_RenderEntries[i].pRenderObj)
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{
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//Log(LOG_RFBUG, L"DELETED CRenderObj at: 0x%08x", _RenderEntries[i].pRenderObj);
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delete _RenderEntries[i].pRenderObj;
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}
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}
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DeleteCriticalSection(&_csListLock);
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderList::OpenRenderObject(CUxThemeFile *pThemeFile, int iThemeOffset,
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int iClassNameOffset, CDrawBase *pDrawBase, CTextDraw *pTextObj, HWND hwnd,
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DWORD dwOtdFlags, HTHEME *phTheme)
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{
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HRESULT hr = S_OK;
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CAutoCS autoCritSect(&_csListLock);
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CRenderObj *pRender = NULL;
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int iUsedSlot = -1;
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int iNextAvailSlot = -1;
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//---- see if OK to share an existing CRenderObj ----
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BOOL fShare = ((! pDrawBase) && (! pTextObj) && (! LogOptionOn(LO_TMHANDLE)));
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if (fShare)
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{
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if ((dwOtdFlags) && (dwOtdFlags != OTD_NONCLIENT)) // bits other than nonclient are set
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fShare = FALSE;
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}
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//---- loop for sharing and finding first avail entry ----
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for (int i=0; i < _RenderEntries.m_nSize; i++)
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{
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[i];
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pRender = pEntry->pRenderObj;
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//---- skip over available entries ----
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if (! pRender)
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{
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if (iNextAvailSlot == -1) // take first found slot
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iNextAvailSlot = i;
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continue;
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}
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if ((fShare) && (! pEntry->fClosing))
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{
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pRender->ValidateObj();
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int iOffset = int(pRender->_pbSectionData - pRender->_pbThemeData);
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if ((pRender->_pThemeFile == pThemeFile) && (iOffset == iThemeOffset))
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{
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pEntry->iRefCount++;
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iUsedSlot = i;
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Log(LOG_CACHE, L"OpenRenderObject: found match for Offset=%d (slot=%d, refcnt=%d)",
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iThemeOffset, i, pEntry->iRefCount);
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break;
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}
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}
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}
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if (iUsedSlot == -1) // not found
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{
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if (iNextAvailSlot == -1) // add to end
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iUsedSlot = _RenderEntries.m_nSize ;
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else
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iUsedSlot = iNextAvailSlot;
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_iNextUniqueId++;
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hr = CreateRenderObj(pThemeFile, iUsedSlot, iThemeOffset, iClassNameOffset,
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_iNextUniqueId, TRUE, pDrawBase, pTextObj, dwOtdFlags, &pRender);
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if (FAILED(hr))
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goto exit;
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//Log(LOG_RFBUG, L"ALLOCATED CRenderObj at: 0x%08x", pRender);
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//---- extract theme file Load ID ----
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THEMEHDR *th = (THEMEHDR *)pRender->_pbThemeData;
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int iLoadId = 0;
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if (th)
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iLoadId = th->iLoadId;
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RENDER_OBJ_ENTRY entry = {pRender, 1, 1, 0, iLoadId, FALSE, hwnd};
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if (iUsedSlot == _RenderEntries.m_nSize) // add new entry
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{
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if (! _RenderEntries.Add(entry))
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{
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delete pRender;
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hr = MakeError32(E_OUTOFMEMORY);
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goto exit;
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}
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Log(LOG_CACHE, L"OpenRenderObject: created new obj AT END (slot=%d, refcnt=%d)",
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pRender->_iCacheSlot, 1);
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}
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else // use an existing slot
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{
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entry.dwRecycleNum = _RenderEntries[iUsedSlot].dwRecycleNum + 1;
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_RenderEntries[iUsedSlot] = entry;
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Log(LOG_CACHE, L"OpenRenderObject: created new obj SLOT REUSE (slot=%d, refcnt=%d, recycle=%d)",
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iUsedSlot, 1, _RenderEntries[iUsedSlot].dwRecycleNum);
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}
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}
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if (SUCCEEDED(hr))
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{
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[iUsedSlot];
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*phTheme = MAKE_HTHEME(pEntry->dwRecycleNum, iUsedSlot);
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//---- for debugging refcount issues ----
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if (LogOptionOn(LO_TMHANDLE))
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{
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WCHAR buff[MAX_PATH];
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if (hwnd)
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GetClassName(hwnd, buff, ARRAYSIZE(buff));
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else
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buff[0] = 0;
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//if (lstrcmpi(pRender->_pszClassName, L"window")==0)
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{
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//Log(LOG_TMHANDLE, L"OTD: cls=%s (%s), hwnd=0x%x, htheme=0x%x, new refcnt=%d",
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// pRender->_pszClassName, buff, hwnd, *phTheme, pEntry->iRefCount);
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}
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}
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}
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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BOOL CRenderList::DeleteCheck(RENDER_OBJ_ENTRY *pEntry)
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{
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BOOL fClosed = FALSE;
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if ((! pEntry->iRefCount) && (! pEntry->iInUseCount))
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{
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//Log(LOG_RFBUG, L"DELETED CRenderObj at: 0x%08x", pEntry->pRenderObj);
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delete pEntry->pRenderObj;
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//---- important: don't use RemoveAt() or entries will shift and ----
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//---- our "SlotNumber" model between RenderList & CacheList will ----
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//---- be broken ----
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pEntry->pRenderObj = NULL;
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pEntry->fClosing = FALSE;
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fClosed = TRUE;
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}
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return fClosed;
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderList::CloseRenderObject(HTHEME hTheme)
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{
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CAutoCS autoCritSect(&_csListLock);
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HRESULT hr = S_OK;
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int iSlotNum = (DWORD(PtrToInt(hTheme)) & 0xffff);
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DWORD dwRecycleNum = (DWORD(PtrToInt(hTheme)) >> 16);
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if (iSlotNum >= _RenderEntries.m_nSize)
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{
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Log(LOG_BADHTHEME, L"Illegal Theme Handle: 0x%x", hTheme);
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hr = MakeError32(E_HANDLE);
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goto exit;
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}
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[iSlotNum];
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if ((! pEntry->pRenderObj) || (pEntry->fClosing) || (pEntry->dwRecycleNum != dwRecycleNum))
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{
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Log(LOG_BADHTHEME, L"Expired Theme Handle: 0x%x", hTheme);
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hr = MakeError32(E_HANDLE);
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goto exit;
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}
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//---- allow for our iRefCount to have been set to zero explicitly ----
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if (pEntry->iRefCount > 0)
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pEntry->iRefCount--;
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#if 0
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//---- for debugging refcount issues ----
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if (LogOptionOn(LO_TMHANDLE))
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{
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CRenderObj *pRender = pEntry->pRenderObj;
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Log(LOG_TMHANDLE, L"CTD: cls=%s, hwnd=0x%x, htheme=0x%x, new refcnt=%d",
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pRender->_pszClassName, pEntry->hwnd, hTheme, pEntry->iRefCount);
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}
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#endif
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DeleteCheck(pEntry);
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderList::OpenThemeHandle(HTHEME hTheme, CRenderObj **ppRenderObj, int *piSlotNum)
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{
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CAutoCS autoCritSect(&_csListLock);
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HRESULT hr = S_OK;
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int iSlotNum = (int)(DWORD(PtrToInt(hTheme)) & 0xffff);
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DWORD dwRecycleNum = (DWORD(PtrToInt(hTheme)) >> 16);
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if (iSlotNum >= _RenderEntries.m_nSize)
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{
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Log(LOG_BADHTHEME, L"Illegal Theme Handle: 0x%x", hTheme);
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hr = MakeError32(E_HANDLE);
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goto exit;
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}
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[iSlotNum];
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if ((! pEntry->pRenderObj) || (pEntry->fClosing) || (pEntry->dwRecycleNum != dwRecycleNum))
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{
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Log(LOG_BADHTHEME, L"Expired Theme Handle: 0x%x", hTheme);
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hr = MakeError32(E_HANDLE);
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goto exit;
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}
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if (pEntry->iInUseCount > 25)
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{
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Log(LOG_BADHTHEME, L"Warning BREAK: high ThemeHandle inuse count=%d", pEntry->iInUseCount);
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}
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pEntry->iInUseCount++;
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*ppRenderObj = pEntry->pRenderObj;
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*piSlotNum = iSlotNum;
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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void CRenderList::CloseThemeHandle(int iSlotNum)
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{
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CAutoCS autoCritSect(&_csListLock);
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[iSlotNum];
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if (pEntry->iInUseCount <= 0)
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{
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Log(LOG_ERROR, L"Bad iUseCount on CRenderObj at slot=%d", iSlotNum);
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}
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else
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{
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pEntry->iInUseCount--;
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DeleteCheck(pEntry);
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}
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}
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//---------------------------------------------------------------------------
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void CRenderList::FreeRenderObjects(int iThemeFileLoadId)
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{
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CAutoCS autoCritSect(&_csListLock);
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int iFoundCount = 0;
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int iClosedCount = 0;
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//---- theme hooking has been turned off - mark all ----
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//---- our objects so they can be freed as soon ----
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//---- as all wrapper API's are exited so that ----
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//---- we don't hold open those big theme files in memory ----
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for (int i=0; i < _RenderEntries.m_nSize; i++)
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{
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[i];
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if (pEntry->pRenderObj)
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{
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if ((iThemeFileLoadId == -1) || (iThemeFileLoadId == pEntry->iLoadId))
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{
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iFoundCount++;
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HTHEME hTheme = MAKE_HTHEME(pEntry->dwRecycleNum, i);
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Log(LOG_BADHTHEME, L"Unclosed RenderList[]: class=%s, hwnd=0x%x, htheme=0x%x, refcnt=%d",
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pEntry->pRenderObj->_pszClassName, pEntry->hwnd, hTheme, pEntry->iRefCount);
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pEntry->fClosing = TRUE; // don't grant further access to this obj
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pEntry->iRefCount = 0; // free it as soon as callers have exited
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if (DeleteCheck(pEntry)) // delete now or mark for "delete on API exit"
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{
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//---- just deleted it ----
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iClosedCount++;
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}
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}
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}
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}
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Log(LOG_TMHANDLE, L"FreeRenderObjects: iLoadId=%d, found-open=%d, closed-now=%d",
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iThemeFileLoadId, iFoundCount, iClosedCount);
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}
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//---------------------------------------------------------------------------
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#ifdef DEBUG
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void CRenderList::DumpFileHolders()
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{
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CAutoCS autoCritSect(&_csListLock);
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if (LogOptionOn(LO_TMHANDLE))
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{
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//---- find number of CRenderObj's ----
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int iCount = 0;
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_RenderEntries.m_nSize;
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for (int i=0; i < _RenderEntries.m_nSize; i++)
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{
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if (_RenderEntries[i].pRenderObj)
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iCount++;
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}
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if (! iCount)
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{
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Log(LOG_TMHANDLE, L"---- No CRenderObj objects ----");
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}
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else
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{
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Log(LOG_TMHANDLE, L"---- Dump of %d CRenderObj objects ----", iCount);
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for (int i=0; i < _RenderEntries.m_nSize; i++)
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{
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RENDER_OBJ_ENTRY *pEntry = &_RenderEntries[i];
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if (pEntry->pRenderObj)
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{
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CRenderObj *pr = pEntry->pRenderObj;
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THEMEHDR *th = (THEMEHDR *)pr->_pbThemeData;
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int iLoadId = 0;
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if (th)
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iLoadId = th->iLoadId;
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LPCWSTR pszClass = NULL;
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if (pr->_pszClassName)
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pszClass = pr->_pszClassName;
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Log(LOG_TMHANDLE, L" RenderObj[%d]: class=%s, refcnt=%d, hwnd=0x%x",
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i, pszClass, pEntry->iRefCount, pEntry->hwnd);
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}
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}
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}
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}
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}
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#endif
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//---------------------------------------------------------------------------
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