[raster] Fix Savannah bug #44022.
Add fallback for glyphs with degenerate bounding boxes.
If a glyph has only one very narrow feature, the bbox can end up
with either the width or height of the bbox being 0, in which case
no raster memory is allocated and no attempt is made to render the
glyph. This is less than ideal when the drop-out compensation in
the rendering code would actually result in the glyph being
rendered.
This problem can be observed with the `I' glyph (gid 47) in the
Autodesk RomanS TrueType font.
* src/raster/ftrend1.c (ft_raster1_render): Add a fallback if either
dimension is zero to explicitly round up/down (instead of simply
round).
2 files changed