tunemem.h

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// $Id: tunemem.h 751 2006-03-31 15:43:49Z alex $
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 */
// A Limited Memory allocator

#ifndef INC_TUNEMEM
#define INC_TUNEMEM


/********************************************************************************************

>   class TunedMemory : public CC_CLASS_MEMDUMP

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    1/5/95
    Purpose:    This is a shell around the CCMalloc and CCFree memory allocator. If you
                use this class to get the memory, the total alloc'ed memory will not
                exceed the amount set in this class. This is used to allow the user to
                say how much memory they are prepared to commit to the off-screen bitmap
                used in rendering. If there is not enough, GRenderRegions will band thier
                output to use up less ram.

********************************************************************************************/

class TunedMemory : public CC_CLASS_MEMDUMP
{
    // Give my name in memory dumps
    CC_DECLARE_MEMDUMP(TunedMemory);

public:
    // construction
    TunedMemory();
    ~TunedMemory();

    // Functions to get and free memory
    LPVOID LimitedCCMalloc(size_t Size);
    LPVOID LimitedCCRealloc(LPVOID buf, size_t NewSize);
    void LimitedCCFree(LPVOID buf);

    // Functions to find out how much ram is left from the amount available
    size_t GetTotalTunedMem();
    size_t GetAvailableTunedMem();

    // Functions to help comunicate with the Options Dialog
    static size_t GetLimitedMemSize();
    static size_t SetLimitedMemSize(size_t NewSize);
    
    static BOOL IsMemSizeInfinite();
    static void SetMemSizeInfinte(BOOL NewIsInfinite);

    static INT32 GetScreenMemSize();

    static BOOL IsAutomaticMemory();
    static void CalculateRecommendedMemory();

    // Function to read and write the prefs to the ini file
    static BOOL Init();

// member vars
protected:
    // The total is also saved out as a preference
    static BOOL         IsInfinite;
    static size_t       TotalRAM;
    static size_t       AvailableRAM;

    static BOOL         SmartBanding;

    static size_t       LimitRAM;
    static BOOL         RecommendInfinite;
    static INT32            RecommendRAM;
};


#endif  // INC_TUNEME

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