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148 lines
4.2 KiB
148 lines
4.2 KiB
//---------------------------------------------------------------------------
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// Cache.cpp - implements the CRenderCache object
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//---------------------------------------------------------------------------
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#include "stdafx.h"
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#include "Cache.h"
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#include "Info.h"
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#include "tmutils.h"
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//---------------------------------------------------------------------------
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CRenderCache::CRenderCache(CRenderObj *pRender, __int64 iUniqueId)
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{
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StringCchCopyA(_szHead, ARRAYSIZE(_szHead), "rcache");
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StringCchCopyA(_szTail, ARRAYSIZE(_szTail), "end");
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_pRenderObj = pRender;
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_iUniqueId = iUniqueId;
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_hFont = NULL;
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_plfFont = NULL;
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}
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//---------------------------------------------------------------------------
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CRenderCache::~CRenderCache()
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{
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//---- delete bitmaps ----
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int cnt = _BitmapCache.GetSize();
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for (int i=0; i < cnt; i++)
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{
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Log(LOG_CACHE, L"DELETE cache bitmap: 0x%x", _BitmapCache[i].hBitmap);
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DeleteObject(_BitmapCache[i].hBitmap);
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}
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//---- delete font ----
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if (_hFont)
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DeleteObject(_hFont);
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StringCchCopyA(_szHead, ARRAYSIZE(_szHead), "deleted");
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderCache::GetBitmap(int iDibOffset, OUT HBITMAP *phBitmap)
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{
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HRESULT hr = S_OK;
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int cnt = _BitmapCache.GetSize();
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for (int i=0; i < cnt; i++)
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{
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BITMAPENTRY *be = &_BitmapCache[i];
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if (be->iDibOffset == iDibOffset)
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{
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Log(LOG_TM, L"GetBitmap - CACHE HIT: class=%s, diboffset=%d, bitmap=0x%x",
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SHARECLASS(_pRenderObj), be->iDibOffset, be->hBitmap);
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*phBitmap = be->hBitmap;
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goto exit;
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}
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}
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//---- no match found ----
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hr = MakeError32(ERROR_NOT_FOUND);
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderCache::AddBitmap(int iDibOffset, HBITMAP hBitmap)
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{
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HRESULT hr = S_OK;
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BITMAPENTRY entry;
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//---- add new entry for our part/state ----
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entry.iDibOffset = iDibOffset;
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entry.hBitmap = hBitmap;
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//entry.iRefCount = 1; // new entry
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Log(LOG_CACHE, L"ADD cache bitmap: 0x%x", entry.hBitmap);
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if (! _BitmapCache.Add(entry))
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hr = MakeError32(E_OUTOFMEMORY);
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return hr;
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}
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//---------------------------------------------------------------------------
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void CRenderCache::ReturnBitmap(HBITMAP hBitmap)
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{
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}
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//---------------------------------------------------------------------------
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HRESULT CRenderCache::GetScaledFontHandle(HDC hdc, LOGFONT *plfUnscaled, HFONT *phFont)
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{
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HRESULT hr = S_OK;
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//---- caches one font only ----
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if ((! _plfFont) || (! FONTCOMPARE(*_plfFont, *plfUnscaled)))
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{
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Log(LOG_TM, L"Font CACHE MISS: %s", plfUnscaled->lfFaceName);
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if (_hFont)
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{
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DeleteObject(_hFont);
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_hFont = NULL;
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_plfFont = NULL;
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}
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LOGFONT lfScaled = *plfUnscaled;
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//---- convert to current screen dpi ----
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ScaleFontForHdcDpi(hdc, &lfScaled);
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_hFont = CreateFontIndirect(&lfScaled);
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if (! _hFont)
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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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_plfFont = plfUnscaled;
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}
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else
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Log(LOG_TM, L"Font CACHE HIT");
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*phFont = _hFont;
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exit:
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return hr;
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}
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//---------------------------------------------------------------------------
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void CRenderCache::ReturnFontHandle(HFONT hFont)
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{
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}
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//---------------------------------------------------------------------------
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BOOL CRenderCache::ValidateObj()
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{
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BOOL fValid = TRUE;
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//---- check object quickly ----
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if ( (! this)
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|| (ULONGAT(_szHead) != 'cacr') // "rcac"
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|| (ULONGAT(&_szHead[4]) != 'eh') // "he"
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|| (ULONGAT(_szTail) != 'dne')) // "end"
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{
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Log(LOG_ERROR, L"Corrupt CRenderCache object: 0x%08x", this);
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fValid = FALSE;
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}
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return fValid;
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}
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//---------------------------------------------------------------------------
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