00001 // This is core/vil/file_formats/vil_jpeg_source_mgr.h 00002 #ifndef vil_jpeg_source_mgr_h_ 00003 #define vil_jpeg_source_mgr_h_ 00004 #ifdef VCL_NEEDS_PRAGMA_INTERFACE 00005 #pragma interface 00006 #endif 00007 //: 00008 // \file 00009 // \author fsm 00010 // \verbatim 00011 // Modifications 00012 // 11 Oct 2002 Ian Scott - converted to vil 00013 //\endverbatim 00014 00015 #include <vil/file_formats/vil_jpeglib.h> 00016 class vil_stream; 00017 00018 //: this is the data source structure which allows JPEG to read from a vil_stream. 00019 struct vil_jpeg_stream_source_mgr 00020 { 00021 struct jpeg_source_mgr base; 00022 00023 vil_stream *stream; /* source stream */ 00024 JOCTET * buffer; /* start of buffer */ 00025 jpeg_boolean start_of_file; /* have we gotten any data yet? */ 00026 }; 00027 00028 void 00029 vil_jpeg_init_source (j_decompress_ptr cinfo); 00030 00031 jpeg_boolean 00032 vil_jpeg_fill_input_buffer (j_decompress_ptr cinfo); 00033 00034 void 00035 vil_jpeg_skip_input_data (j_decompress_ptr cinfo, long num_bytes); 00036 00037 void 00038 vil_jpeg_term_source (j_decompress_ptr cinfo); 00039 00040 void 00041 vil_jpeg_stream_src_set (j_decompress_ptr cinfo, vil_stream *vs); 00042 00043 void 00044 vil_jpeg_stream_src_rewind(j_decompress_ptr cinfo, vil_stream *vs); 00045 00046 #endif // vil_jpeg_source_mgr_h_
1.7.5.1