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#ifndef _BGFX_RASTER_BZPIXELRASTER_HXX
#define _BGFX_RASTER_BZPIXELRASTER_HXX

#include <basegfx/raster/bpixelraster.hxx>
#include <rtl/memory.h>
#include <basegfx/basegfxdllapi.h>

//////////////////////////////////////////////////////////////////////////////
// predeclarations

//////////////////////////////////////////////////////////////////////////////

namespace basegfx
{
    class BASEGFX_DLLPUBLIC BZPixelRaster : public BPixelRaster
    {
    protected:
        // additionally, host a ZBuffer
        sal_uInt16*                 mpZBuffer;

    public:
        // reset
        void resetZ()
        {
            reset();
            rtl_zeroMemory(mpZBuffer, sizeof(sal_uInt16) * mnCount);
        }

        // constructor/destructor
        BZPixelRaster(sal_uInt32 nWidth, sal_uInt32 nHeight)
        :   BPixelRaster(nWidth, nHeight),
            mpZBuffer(new sal_uInt16[mnCount])
        {
            rtl_zeroMemory(mpZBuffer, sizeof(sal_uInt16) * mnCount);
        }

        ~BZPixelRaster()
        {
            delete [] mpZBuffer;
        }

        // data access read only
        const sal_uInt16& getZ(sal_uInt32 nIndex) const
        {
#ifdef DBG_UTIL
            if(nIndex >= mnCount)
            {
                OSL_ENSURE(false, "getZ: Access out of range (!)");
                return mpZBuffer[0L];
            }
#endif
            return mpZBuffer[nIndex];
        }

        // data access read/write
        sal_uInt16& getZ(sal_uInt32 nIndex)
        {
#ifdef DBG_UTIL
            if(nIndex >= mnCount)
            {
                OSL_ENSURE(false, "getZ: Access out of range (!)");
                return mpZBuffer[0L];
            }
#endif
            return mpZBuffer[nIndex];
        }
    };
} // end of namespace basegfx

#endif /* _BGFX_RASTER_BZPIXELRASTER_HXX */