1 /*****************************************************************************/ 2 // Copyright 2006-2007 Adobe Systems Incorporated 3 // All Rights Reserved. 4 // 5 // NOTICE: Adobe permits you to use, modify, and distribute this file in 6 // accordance with the terms of the Adobe license agreement accompanying it. 7 /*****************************************************************************/ 8 9 /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_file_stream.h#1 $ */ 10 /* $DateTime: 2012/05/30 13:28:51 $ */ 11 /* $Change: 832332 $ */ 12 /* $Author: tknoll $ */ 13 14 /** \file 15 * Simple, portable, file read/write support. 16 */ 17 18 /*****************************************************************************/ 19 20 #ifndef __dng_file_stream__ 21 #define __dng_file_stream__ 22 23 /*****************************************************************************/ 24 25 #include "dng_stream.h" 26 27 /*****************************************************************************/ 28 29 /// \brief A stream to/from a disk file. See dng_stream for read/write interface 30 31 class dng_file_stream: public dng_stream 32 { 33 34 private: 35 36 FILE *fFile; 37 38 public: 39 40 /// Open a stream on a file. 41 /// \param filename Pathname in platform synax. 42 /// \param output Set to true if writing, false otherwise. 43 /// \param bufferSize size of internal buffer to use. Defaults to 4k. 44 45 dng_file_stream (const char *filename, 46 bool output = false, 47 uint32 bufferSize = kDefaultBufferSize); 48 49 virtual ~dng_file_stream (); 50 51 protected: 52 53 virtual uint64 DoGetLength (); 54 55 virtual void DoRead (void *data, 56 uint32 count, 57 uint64 offset); 58 59 virtual void DoWrite (const void *data, 60 uint32 count, 61 uint64 offset); 62 63 private: 64 65 // Hidden copy constructor and assignment operator. 66 67 dng_file_stream (const dng_file_stream &stream); 68 69 dng_file_stream & operator= (const dng_file_stream &stream); 70 71 }; 72 73 /*****************************************************************************/ 74 75 #endif 76 77 /*****************************************************************************/ 78
