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Diffstat (limited to 'non-free/esmod.hh')
| -rw-r--r-- | non-free/esmod.hh | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/non-free/esmod.hh b/non-free/esmod.hh new file mode 100644 index 0000000..c1ce40b --- /dev/null +++ b/non-free/esmod.hh @@ -0,0 +1,177 @@ +// esmod.hh -- exposed API of the 'esmod' library +// Copyright (C) 2019 SEIKO EPSON Corporation +// +// This file is part of the 'esmod' library. +// +// The 'esmod' library is non-free software. +// It is distributed under the terms of the EPSON END USER SOFTWARE LICENSE. +// +// You should have received a verbatim copy of the EPSON END USER +// SOFTWARE LICENSE along with the software. + + +#ifndef esmod_hh_included +#define esmod_hh_included + +#ifndef __cplusplus +#error "This is a C++ header file; use a C++ compiler to compile it." +#endif + +#include <cstddef> /* for size_t */ + +namespace esmod +{ + +#define ESMOD_OPTION_FLATBED (0) +#define ESMOD_OPTION_TPU (1) +#define ESMOD_OPTION_ADF (2) + +#define ESMOD_FILM_NEGATIVE (0) +#define ESMOD_FILM_POSITIVE (1) + +#define ESMOD_PIXEL_RGB (0) +#define ESMOD_PIXEL_GRAY (1) +#define ESMOD_PIXEL_MONO (2) + +#define ESMOD_IMAGE_PHOTO (0) +#define ESMOD_IMAGE_DOCUMENT (1) +#define ESMOD_IMAGE_LINE_ART (2) + +#define ESMOD_DEFAULT_GAMMA (1.0) +#define ESMOD_DEFAULT_HILITE (245) +#define ESMOD_DEFAULT_SHADOW (8) +#define ESMOD_DEFAULT_THRESHOLD (160) + +#define ESMOD_FOCUS_UMASK (1) +#define ESMOD_FOCUS_GAUSS (2) +#define ESMOD_FOCUS_UMASK_Y (3) + +#define ESMOD_SCALE_NEAREST_NEIGHBOUR (1) +#define ESMOD_SCALE_BILINEAR (2) +#define ESMOD_SCALE_BICUBIC (3) + + +typedef unsigned char byte_type; +typedef size_t size_type; +typedef bool bool_type; +typedef int type_type; +typedef long long_type; +typedef unsigned long parm_type; +typedef double real_type; + + +class filter +{ +public: + virtual ~filter () {}; + + //! Returns a block of n bytes of post-filter data. + virtual filter& getblock ( byte_type *block, size_type n) = 0; + //! Feeds the filter a block of n bytes of data. + virtual filter& putblock (const byte_type *block, size_type n) = 0; + //! Combines putblock() and getblock() in a single call. + virtual filter& exec (const byte_type *i_block, size_type i_n, + byte_type *o_block, size_type o_n) + { + putblock (i_block, i_n); + return getblock (o_block, o_n); + } + + //! Returns number of additional input lines needed for out_lines of output. + virtual size_type get_line_quote (size_type out_lines) + { return out_lines; }; + +protected: + void *_hidden_data; + filter () {}; + +private: // undefined to prevent copying + filter (const filter&); + filter& operator= (const filter&); +}; + +class focus : public filter +{ +public: + focus (long_type width, long_type height, long_type rowbytes, + size_type bits_per_pixel); + focus (long_type i_width, long_type i_height, long_type i_rowbytes, + long_type o_width, long_type o_height, long_type o_rowbytes, + size_type bits_per_pixel, + parm_type strength, parm_type radius, parm_type clipping, + type_type focus_type); + virtual ~focus (); + + void set_parms (size_type resolution, bool_type film_type, bool_type is_dumb, + parm_type *strength, parm_type *radius, parm_type *clipping); + + virtual filter& getblock ( byte_type *block, size_type n); + virtual filter& putblock (const byte_type *block, size_type n); + virtual filter& exec (const byte_type *i_block, size_type i_n, + byte_type *o_block, size_type o_n); + + virtual size_type get_line_quote (size_type out_lines); +}; + +class moire : public filter +{ +public: + moire (long_type i_width, long_type i_height, long_type i_rowbytes, + long_type o_width, long_type o_height, long_type o_rowbytes, + size_type bits_per_pixel, + size_type resolution, bool_type is_dumb); + virtual ~moire (); + + virtual filter& getblock ( byte_type *block, size_type n); + virtual filter& putblock (const byte_type *block, size_type n); + virtual filter& exec (const byte_type *i_block, size_type i_n, + byte_type *o_block, size_type o_n); + + static size_type get_res_quote (size_type out_res, bool_type is_dumb); + virtual size_type get_line_quote (size_type out_lines); +}; + +class scale : public filter +{ +public: + scale (long_type i_width, long_type i_height, long_type i_rowbytes, + long_type o_width, long_type o_height, long_type o_rowbytes, + size_type bits_per_pixel, + type_type scale_type); + virtual ~scale (); + + virtual filter& getblock ( byte_type *block, size_type n); + virtual filter& putblock (const byte_type *block, size_type n); + virtual filter& exec (const byte_type *i_block, size_type i_n, + byte_type *o_block, size_type o_n); + + virtual size_type get_line_quote (size_type out_lines); +}; + +// WARNING: These quite likely modify global state in libesmod. +void auto_expose (type_type option_type, type_type film_type, + byte_type *image, + long_type width, long_type height, long_type rowbytes, + long_type top, long_type left, + long_type bottom, long_type right, + long_type *gamma, long_type *hilite, + long_type *shadow, long_type *graybalance, + real_type film_gamma[3], + real_type film_yp[3], + real_type grayl[3], + bool_type is_photo, bool_type is_dumb); +void build_LUT (type_type option_type, type_type film_type, + type_type pixel_type, type_type image_type, + long_type gamma, long_type hilite, + long_type shadow, long_type graybalance, + const real_type film_gamma[3], + const real_type film_yp[3], + const real_type grayl[3], + byte_type master[256], + byte_type rgb[3 * 256], + byte_type lut[3 * 256], + bool is_dumb); + +} // namespace esmod + +#endif /* !defined (esmod_hh_included) */ |