Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType Demo Programs
Commits:
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fbff2ec4
by Alexei Podtelezhnikov at 2021-06-21T12:44:13-04:00
1 changed file:
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| ... | ... | @@ -9,19 +9,72 @@ ftlint \- simple font tester |
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.SH SYNOPSIS
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.
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.B ftlint
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+.RI [ options ]
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.I ppem
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-.IR fontname [ .ttf | .ttc "] .\|.\|."
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+.IR font .\|.\|.
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.
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.
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.SH DESCRIPTION
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.
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.B ftlint
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-opens the given font(s), loads and renders all glyphs at the given ppem
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-value, and reports failing glyphs if there are less than ten fails, or the
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-number of fails only if there are more fails.
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+opens the given font(s), loads and renders glyphs at the given ppem value.
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+For successfully rendered glyphs, it calculates the bitmap MD5 checksum
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+for regression testing as well as horizonal (X) and vertical (Y) acutances
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+for quality assessment. The acutance is equal to 2.0 for monochrome bitmap
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+fonts and approaches this value for hinted anti-aliased fonts.
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+.
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+.TP
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+.B ppem
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+Size in pixels per EM.
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+.
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+.TP
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+.B font
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+The font file(s) to test.
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.
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.PP
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-This program does not have any options.
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-It is part of the FreeType demos package.
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+This program is part of the FreeType demos package.
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+.
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+.
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+.SH OPTIONS
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+.
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+.TP
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+.BI \-f \ L
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+Use
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+.B hexadecimal
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+(not decimal) number
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+.I L
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+defined by
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+.B \%FT_\:LOAD_\:XXX
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+flags (default is 0).
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+.
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+.TP
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+.BI \-r \ N
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+Set render mode to
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+.IR N :
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+.
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+.RS
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+.TS
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+tab (@);
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+rB l.
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+0@normal
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+1@light
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+2@mono
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+3@horizontal LCD
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+4@vertical LCD
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+.TE
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+.RE
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+.
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+.IP
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+which corresponds to the values of the
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+.B \%FT_\:RENDER_\:MODE_\:XXX
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+enumeration (default is 0).
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+.
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+.TP
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+.BI \-i \ I-J
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+Range of glyph indices to use (default: all).
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+.
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+.TP
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+.B \-q
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+Quiet mode without the rendering analysis.
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.
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.\" eof
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