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https://invent.kde.org/graphics/okular
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90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
#ifndef _xdvi_h
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#define _xdvi_h
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/*
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* Written by Eric C. Cooper, CMU
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*/
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/*
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* pixel_conv is currently used only for converting absolute positions
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* to pixel values; although normally it should be
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* ((int) ((x) / shrink_factor + (1 << 15) >> 16)),
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* the rounding is achieved instead by moving the constant 1 << 15 to
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* PAGE_OFFSET in dvi_draw.c.
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*/
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#define pixel_conv(x) ((int) ((x) / (shrink_factor * 65536)))
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#define pixel_round(x) ((int) ROUNDUP(x, shrink_factor * 65536))
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#define spell_conv0(n, f) ((long) (n * f))
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#define spell_conv(n) spell_conv0(n, dimconv)
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#ifdef BMBYTE
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#define BMUNIT unsigned char
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#define BITS_PER_BMUNIT 8
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#define BYTES_PER_BMUNIT 1
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#else /* !BMBYTE */
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#ifdef BMSHORT
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#define BMUNIT unsigned short
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#define BITS_PER_BMUNIT 16
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#define BYTES_PER_BMUNIT 2
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#else /* !BMSHORT */
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#define BMLONG
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#ifdef __alpha
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#define BMUNIT unsigned int
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#else
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#define BMUNIT unsigned long
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#endif /* if __alpha */
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#define BITS_PER_BMUNIT 32
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#define BYTES_PER_BMUNIT 4
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#endif /* !BMSHORT */
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#endif /* !BMBYTE */
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#define ADD(a, b) ((BMUNIT *) (((char *) a) + b))
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#define SUB(a, b) ((BMUNIT *) (((char *) a) - b))
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extern BMUNIT bit_masks[BITS_PER_BMUNIT + 1];
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extern struct drawinf currinf;
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/* entries below with the characters 'dvi' in them are actually stored in
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scaled pixel units */
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#define DVI_H currinf.data.dvi_h
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#define PXL_H pixel_conv(currinf.data.dvi_h)
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#define DVI_V currinf.data.dvi_v
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#define PXL_V currinf.data.pxl_v
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#define WW currinf.data.w
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#define XX currinf.data.x
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#define YY currinf.data.y
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#define ZZ currinf.data.z
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#define ROUNDUP(x,y) (((x)+(y)-1)/(y))
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extern QIntDict<struct font> tn_table;
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/*
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* Command line flags.
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*/
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extern int _pixels_per_inch;
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extern unsigned long num (FILE *, int);
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extern long snum(FILE *, int);
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#define pixels_per_inch _pixels_per_inch
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extern struct WindowRec mane, currwin;
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#define shrink_factor currwin.shrinkfactor
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#define one(fp) ((unsigned char) getc(fp))
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#define sone(fp) ((long) one(fp))
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#define two(fp) num (fp, 2)
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#define stwo(fp) snum(fp, 2)
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#define four(fp) num (fp, 4)
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#define sfour(fp) snum(fp, 4)
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#endif /* _xdvi_h */
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