1 /* in_jai.hpp -- Tue Jun 11 19:05:04 CEST 2002 2 */ 3 4 #ifdef __GNUC__ 5 #ifndef __clang__ 6 #pragma interface 7 #endif 8 #endif 9 10 #ifndef IN_JAI_HPP 11 #define IN_JAI_HPP 1 12 13 #include "config2.h" 14 15 #if USE_IN_JAI 16 17 #include "gensio.hpp" 18 19 struct jai_gfxinfo { 20 /** 0 for baseline JPEG, 1..15 for other JPEG compression */ 21 unsigned char SOF_type; 22 unsigned char colorspace; 23 unsigned char bad, bpc, cpp, had_jfif, colortransform, id_rgb; 24 /** (Horiz<<4+Vert) sampling factor for the first color component. Usually 25 * 0x11, but TIFF defaults to 0x22. 26 */ 27 unsigned char hvs; 28 /*Image::Sampled::dimen_t*/slen_t height, width; 29 /** Offset of byte just _after_ the first SOF marker (FF C0 or alike) 30 * from the beginning of the file. 31 */ 32 slen_t SOF_offs; 33 }; 34 35 extern char const*jai_errors[]; 36 #if 0 37 extern void jai_parse_jpeg(struct gfxinfo *result, Filter::FlatR *f); 38 extern void jai_parse_jpeg(struct gfxinfo *result, FILE *f); 39 #else 40 extern void jai_parse_jpeg(struct jai_gfxinfo *result, DecoderTeller *fp, bool must_be_baseline=true); 41 /** Doesn't treat `-' as a special filename. @return 0, 1, or -1 on I/O error */ 42 extern int jai_is_baseline_jpeg(char const* filename); 43 extern int jai_is_baseline_jpeg(/*DecoderTeller*/ Filter::UngetFILED *fp); 44 #endif 45 46 #endif 47 48 #endif /* in_jai.hpp */ 49