1793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler/*M/////////////////////////////////////////////////////////////////////////////////////// 2793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 3793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 5793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// By downloading, copying, installing or using the software you agree to this license. 6793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// If you do not agree to this license, do not download, install, 7793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// copy or use the software. 8793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 9793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 10793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// License Agreement 11793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// For Open Source Computer Vision Library 12793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 13793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. 14793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// Copyright (C) 2009, Willow Garage Inc., all rights reserved. 15793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// Third party copyrights are property of their respective owners. 16793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 17793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// Redistribution and use in source and binary forms, with or without modification, 18793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// are permitted provided that the following conditions are met: 19793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 20793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// * Redistribution's of source code must retain the above copyright notice, 21793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// this list of conditions and the following disclaimer. 22793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 23793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// * Redistribution's in binary form must reproduce the above copyright notice, 24793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// this list of conditions and the following disclaimer in the documentation 25793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// and/or other materials provided with the distribution. 26793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 27793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// * The name of the copyright holders may not be used to endorse or promote products 28793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// derived from this software without specific prior written permission. 29793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 30793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// This software is provided by the copyright holders and contributors "as is" and 31793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// any express or implied warranties, including, but not limited to, the implied 32793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// warranties of merchantability and fitness for a particular purpose are disclaimed. 33793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// In no event shall the Intel Corporation or contributors be liable for any direct, 34793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// indirect, incidental, special, exemplary, or consequential damages 35793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// (including, but not limited to, procurement of substitute goods or services; 36793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// loss of use, data, or profits; or business interruption) however caused 37793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// and on any theory of liability, whether in contract, strict liability, 38793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// or tort (including negligence or otherwise) arising in any way out of 39793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// the use of this software, even if advised of the possibility of such damage. 40793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler// 41793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler//M*/ 42793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 43793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#ifndef _GRFMT_PNG_H_ 44793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#define _GRFMT_PNG_H_ 45793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 46793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#ifdef HAVE_PNG 47793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 48793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#include "grfmt_base.hpp" 49793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#include "bitstrm.hpp" 50793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 51793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslernamespace cv 52793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler{ 53793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 54793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerclass PngDecoder : public BaseImageDecoder 55793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler{ 56793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerpublic: 57793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 58793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler PngDecoder(); 59793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler virtual ~PngDecoder(); 60793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 61793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler bool readData( Mat& img ); 62793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler bool readHeader(); 63793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler void close(); 64793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 65793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler ImageDecoder newDecoder() const; 66793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 67793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerprotected: 68793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 69793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler static void readDataFromBuf(void* png_ptr, uchar* dst, size_t size); 70793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 71793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler int m_bit_depth; 72793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler void* m_png_ptr; // pointer to decompression structure 73793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler void* m_info_ptr; // pointer to image information structure 74793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler void* m_end_info; // pointer to one more image information structure 75793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler FILE* m_f; 76793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler int m_color_type; 77793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler size_t m_buf_pos; 78793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler}; 79793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 80793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 81793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerclass PngEncoder : public BaseImageEncoder 82793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler{ 83793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerpublic: 84793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler PngEncoder(); 85793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler virtual ~PngEncoder(); 86793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 87793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler bool isFormatSupported( int depth ) const; 88793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler bool write( const Mat& img, const std::vector<int>& params ); 89793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 90793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler ImageEncoder newEncoder() const; 91793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 92793ee12c6df9cad3806238d32528c49a3ff9331dNoah Preslerprotected: 93793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler static void writeDataToBuf(void* png_ptr, uchar* src, size_t size); 94793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler static void flushBuf(void* png_ptr); 95793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler}; 96793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 97793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler} 98793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 99793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#endif 100793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler 101793ee12c6df9cad3806238d32528c49a3ff9331dNoah Presler#endif/*_GRFMT_PNG_H_*/ 102