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102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#ifndef _GRFMT_PNG_H_
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#define _GRFMT_PNG_H_
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#ifdef HAVE_PNG
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#include "grfmt_base.hpp"
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#include "bitstrm.hpp"
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namespace cv
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{
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class PngDecoder CV_FINAL : public BaseImageDecoder
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{
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public:
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PngDecoder();
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virtual ~PngDecoder();
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bool readData( Mat& img ) CV_OVERRIDE;
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bool readHeader() CV_OVERRIDE;
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void close();
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ImageDecoder newDecoder() const CV_OVERRIDE;
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protected:
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static void readDataFromBuf(void* png_ptr, uchar* dst, size_t size);
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int m_bit_depth;
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void* m_png_ptr; // pointer to decompression structure
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void* m_info_ptr; // pointer to image information structure
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void* m_end_info; // pointer to one more image information structure
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FILE* m_f;
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int m_color_type;
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size_t m_buf_pos;
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};
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class PngEncoder CV_FINAL : public BaseImageEncoder
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{
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public:
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PngEncoder();
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virtual ~PngEncoder();
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bool isFormatSupported( int depth ) const CV_OVERRIDE;
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bool write( const Mat& img, const std::vector<int>& params ) CV_OVERRIDE;
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ImageEncoder newEncoder() const CV_OVERRIDE;
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protected:
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static void writeDataToBuf(void* png_ptr, uchar* src, size_t size);
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static void flushBuf(void* png_ptr);
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};
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}
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#endif
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#endif/*_GRFMT_PNG_H_*/
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