49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
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//---------------------------------------------------------------------------
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// Cache.h - implements the CRenderCache object
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//---------------------------------------------------------------------------
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#pragma once
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//---------------------------------------------------------------------------
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#include "Render.h"
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//---------------------------------------------------------------------------
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struct BITMAPENTRY // for bitmap cache
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{
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int iDibOffset;
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HBITMAP hBitmap;
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//int iRefCount;
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};
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//---------------------------------------------------------------------------
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class CRenderCache
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{
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public:
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CRenderCache(CRenderObj *pRender, __int64 iUniqueId);
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~CRenderCache();
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public:
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HRESULT GetBitmap(int iDibOffset, OUT HBITMAP *pBitmap);
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HRESULT AddBitmap(int iDibOffset, HBITMAP hBitmap);
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void ReturnBitmap(HBITMAP hBitmap);
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HRESULT GetScaledFontHandle(HDC hdc, LOGFONT *plf, HFONT *phFont);
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void ReturnFontHandle(HFONT hFont);
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BOOL ValidateObj();
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public:
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//---- data ----
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char _szHead[8];
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CRenderObj *_pRenderObj;
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__int64 _iUniqueId;
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protected:
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//---- bitmap cache ----
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CSimpleArray<BITMAPENTRY> _BitmapCache;
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//---- font cache -----
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HFONT _hFont;
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LOGFONT *_plfFont; // just keep ptr to it in shared memory
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char _szTail[4];
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};
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//---------------------------------------------------------------------------
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