kopia lustrzana https://gitlab.com/sane-project/backends
Added milimeter-to-pixel and pixel-to-milimeter conversion function.
rodzic
58df3795ee
commit
8c15724b43
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@ -443,7 +443,7 @@ libescl_la_CPPFLAGS = $(AM_CPPFLAGS) $(JPEG_CFLAGS) $(PNG_CFLAGS) $(TIFF_CFLAGS)
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nodist_libsane_escl_la_SOURCES = escl-s.c
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libsane_escl_la_CPPFLAGS = $(AM_CPPFLAGS) $(JPEG_CFLAGS) $(PNG_CFLAGS) $(TIFF_CFLAGS) $(XML_CFLAGS) $(libcurl_CFLAGS) $(AVAHI_CFLAGS) -DBACKEND_NAME=escl
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libsane_escl_la_LDFLAGS = $(DIST_SANELIBS_LDFLAGS)
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libsane_escl_la_LIBADD = $(COMMON_LIBS) libescl.la ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo sane_strstatus.lo $(JPEG_LIBS) $(PNG_LIBS) $(TIFF_LIBS) $(XML_LIBS) $(libcurl_LIBS) $(AVAHI_LIBS)
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libsane_escl_la_LIBADD = $(COMMON_LIBS) libescl.la ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo sane_strstatus.lo $(MATH_LIB) $(JPEG_LIBS) $(PNG_LIBS) $(TIFF_LIBS) $(XML_LIBS) $(libcurl_LIBS) $(AVAHI_LIBS)
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endif
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endif
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endif
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@ -43,6 +43,7 @@
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#include "../include/sane/sane.h"
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#include <stdio.h>
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#include <math.h>
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#ifndef BACKEND_NAME
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#define BACKEND_NAME escl
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@ -151,6 +152,30 @@ enum
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NUM_OPTIONS
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};
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/**
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* \fn static inline SANE_Fixed milimeter_to_pixel(SANE_Word pixels)
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* \brief Function Function that converts pixels into millimeters.
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*
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* \return SANE_Fixed (Value in pixels)
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*/
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static inline SANE_Fixed
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pixels_to_milimeters (SANE_Word pixels)
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{
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return SANE_FIX((double) pixels * 25.4 / 300.0);
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}
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/**
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* \fn static inline SANE_Word milimeter_to_pixel(SANE_Fixed milimeter)
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* \brief Function Function that converts millimeters into pixels.
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*
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* \return SANE_Word (Value in milimeters)
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*/
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static inline SANE_Word
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milimeters_to_pixels (SANE_Fixed milimeters)
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{
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return (SANE_Word) roundl(SANE_UNFIX(milimeters) * 300.0 / 25.4);
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}
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ESCL_Device *escl_devices(SANE_Status *status);
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SANE_Status escl_device_add(int port_nb, const char *model_name, char *ip_address, char *type);
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SANE_Status escl_status(SANE_String_Const name);
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