Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
4349 Serge 1 
ftrandom
2 
--------
3 
 
4 
This program expects a set of directories containing good fonts, and a set
5 
of extensions of fonts to be tested.  It will randomly pick a font, copy it,
6 
introduce and error and then test it.
7 
 
8 
The FreeType tests are quite basic:
9 
 
10 
  For each erroneous font it
11 
    forks off a new tester;
12 
    initializes the library;
13 
    opens each font in the file;
14 
    loads each glyph;
15 
      (optionally reviewing the contours of the glyph)
16 
      (optionally rasterizing)
17 
    closes the face.
18 
 
19 
If the tester exits with a signal, or takes longer than 20 seconds then
20 
ftrandom saves the erroneous font and continues.  If the tester exits
21 
normally or with an error, then the superstructure removes the test font and
22 
continues.
23 
 
24 
Arguments are:
25 
 
26 
  --all                    Test every font in the directory(ies) no matter
27 
                           what its extension (some CID-keyed fonts have no
28 
                           extension).
29 
  --check-outlines         Call FT_Outline_Decompose on each glyph.
30 
  --dir               Append  to the list of directories to search
31 
                           for good fonts.
32 
  --error-count       Introduce  single-byte errors into the
33 
                           erroneous fonts.
34 
  --error-fraction   Multiply the file size of the font by  and
35 
                           introduce that many errors into the erroneous
36 
                           font file.
37 
  --ext               Add  to the set of font types tested.  Known
38 
                           extensions are `ttf', `otf', `ttc', `cid', `pfb',
39 
                           `pfa', `bdf', `pcf', `pfr', `fon', `otb', and
40 
                           `cff'.
41 
  --help                   Print out this list of options.
42 
  --nohints                Specify FT_LOAD_NO_HINTING when loading glyphs.
43 
  --rasterize              Call FT_Render_Glyph as well as loading it.
44 
  --result            This is the directory in which test files are
45 
                           placed.
46 
  --test             Run a single test on a pre-generated testcase.
47 
                           Done in the current process so it can be debugged
48 
                           more easily.