NAME
    InitTmpRas -- Initialize area of local memory for usage by
                    areafill, floodfill, text.

SYNOPSIS
    InitTmpRas(tmpras, buffer, size)
                a0       a1     d0

    void InitTmpRas( struct TmpRas *, void *, ULONG );

FUNCTION
    The area of memory pointed to by buffer is set up to be used
    by RastPort routines that may need to get some memory for
    intermediate operations in preparation to putting the graphics
    into the final BitMap.
    Tmpras is used to control the usage of buffer.

INPUTS
    tmpras - pointer to a TmpRas structure to be linked into
            a RastPort
    buffer - pointer to a contguous piece of chip memory.
    size - size in bytes of buffer

RESULT
    makes buffer available for users of RastPort

BUGS
    Would be nice if RastPorts could share one TmpRas.

SEE ALSO
    AreaEnd() Flood() Text() graphics/rastport.h

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