epnminfo.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/* ////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2004-2005 Intel Corporation. All Rights Reserved.
//
//
//
*/

#ifndef __EPNMINFO_H__
#define __EPNMINFO_H__

#include "pnminfo.h"
#include "dummyoutput.h"

class EPNMInfo : public PNMInfo
{
public:
    EPNMInfo() {}

    unsigned int EstimateHeaderNOfBytes() const
    {
        DummyOutput counter; Write(counter); return counter.Position();
    }

    template<class ByteOutput>
        void Write(ByteOutput &stream) const
    {
        stream.Write16u((Ipp16u)MagicNumber());
        WriteEndl     (stream);

        WriteUIntAsTxt(stream, Size().Width());
        WriteSpace    (stream);
        WriteUIntAsTxt(stream, Size().Height());
        WriteEndl     (stream);

        if(ColorFormat(MagicNumber()) != PNM_BLACKNWHITE)
        {
            WriteUIntAsTxt(stream, MaxValue());
            WriteEndl     (stream);
        }
    }

    unsigned int EstimateFileNOfBytes(const ImageCoreC<Ipp32s,1> *channel) const
    {
        return EstimateHeaderNOfBytes() + EstimateImageDataNOfBytes(channel);
    }

protected:
    template<class ByteOutput>
        void WriteUIntAsTxt(ByteOutput &stream, unsigned int value) const
    {
        char str[INT_TO_STR_MAX_SIZE];
        unsigned int size = IntToStrR10(value, str);
        stream.Write((Ipp8u*)str, size);
    }

    template<class ByteOutput>
        void WriteEndl(ByteOutput &stream) const
    {
        stream.Write8u((Ipp8u)'\n');
    }

    template<class ByteOutput>
        void WriteSpace(ByteOutput &stream) const
    {
        stream.Write8u((Ipp8u)' ');
    }
};

#endif // __EPNMINFO_H__