1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 8 // 9 // 10 // Intel License Agreement 11 // For Open Source Computer Vision Library 12 // 13 // Copyright (C) 2000, Intel Corporation, all rights reserved. 14 // Third party copyrights are property of their respective owners. 15 // 16 // Redistribution and use in source and binary forms, with or without modification, 17 // are permitted provided that the following conditions are met: 18 // 19 // * Redistribution's of source code must retain the above copyright notice, 20 // this list of conditions and the following disclaimer. 21 // 22 // * Redistribution's in binary form must reproduce the above copyright notice, 23 // this list of conditions and the following disclaimer in the documentation 24 // and/or other materials provided with the distribution. 25 // 26 // * The name of Intel Corporation may not be used to endorse or promote products 27 // derived from this software without specific prior written permission. 28 // 29 // This software is provided by the copyright holders and contributors "as is" and 30 // any express or implied warranties, including, but not limited to, the implied 31 // warranties of merchantability and fitness for a particular purpose are disclaimed. 32 // In no event shall the Intel Corporation or contributors be liable for any direct, 33 // indirect, incidental, special, exemplary, or consequential damages 34 // (including, but not limited to, procurement of substitute goods or services; 35 // loss of use, data, or profits; or business interruption) however caused 36 // and on any theory of liability, whether in contract, strict liability, 37 // or tort (including negligence or otherwise) arising in any way out of 38 // the use of this software, even if advised of the possibility of such damage. 39 // 40 //M*/ 41 42 #ifndef _GRFMT_EXR_H_ 43 #define _GRFMT_EXR_H_ 44 45 #ifdef HAVE_ILMIMF 46 47 #include <ImfChromaticities.h> 48 #include <ImfInputFile.h> 49 #include <ImfChannelList.h> 50 #include <ImathBox.h> 51 #include "grfmt_base.h" 52 53 using namespace Imf; 54 using namespace Imath; 55 56 /* libpng version only */ 57 58 class GrFmtExrReader : public GrFmtReader 59 { 60 public: 61 62 GrFmtExrReader( const char* filename ); 63 ~GrFmtExrReader(); 64 65 bool ReadData( uchar* data, int step, int color ); 66 bool ReadHeader(); 67 void Close(); 68 69 protected: 70 void UpSample( uchar *data, int xstep, int ystep, int xsample, int ysample ); 71 void UpSampleX( float *data, int xstep, int xsample ); 72 void UpSampleY( uchar *data, int xstep, int ystep, int ysample ); 73 void ChromaToBGR( float *data, int numlines, int step ); 74 void RGBToGray( float *in, float *out ); 75 76 InputFile *m_file; 77 PixelType m_type; 78 Box2i m_datawindow; 79 bool m_ischroma; 80 const Channel *m_red; 81 const Channel *m_green; 82 const Channel *m_blue; 83 Chromaticities m_chroma; 84 }; 85 86 87 class GrFmtExrWriter : public GrFmtWriter 88 { 89 public: 90 91 GrFmtExrWriter( const char* filename ); 92 ~GrFmtExrWriter(); 93 94 bool IsFormatSupported( int depth ); 95 bool WriteImage( const uchar* data, int step, 96 int width, int height, int depth, int channels ); 97 protected: 98 }; 99 100 101 // Exr filter factory 102 class GrFmtExr : public GrFmtFilterFactory 103 { 104 public: 105 106 GrFmtExr(); 107 ~GrFmtExr(); 108 109 GrFmtReader* NewReader( const char* filename ); 110 GrFmtWriter* NewWriter( const char* filename ); 111 // bool CheckSignature( const char* signature ); 112 }; 113 114 #endif 115 116 #endif/*_GRFMT_EXR_H_*/ 117