git: c37a66937407 - main - Correct font.h comment describing vfnt font maps

[Ed Maste]

The branch main has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=c37a6693740748d8534ebdb49acbdd05cc21b5f2

commit c37a6693740748d8534ebdb49acbdd05cc21b5f2
Author:     Ed Maste <emaste at FreeBSD.org>
AuthorDate: 2020-12-28 16:56:00 +0000
Commit:     Ed Maste <emaste at FreeBSD.org>
CommitDate: 2020-12-28 17:47:12 +0000

    Correct font.h comment describing vfnt font maps
    
    Commit 41fb06651122 doubled the number of glyph maps in the vfnt format
    from 2 to 4 to support double-width characters, but a comment describing
    the maps was not updated to match.
    
    MFC after:      1 week
    Sponsored by:   The FreeBSD Foundation
---
 sys/sys/font.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sys/sys/font.h b/sys/sys/font.h
index 73b6d39683a6..f8bf151c5f52 100644
--- a/sys/sys/font.h
+++ b/sys/sys/font.h
@@ -42,11 +42,13 @@
 /*
  * Fonts.
  *
- * Remapping tables are used to map Unicode points to glyphs.  They need
- * to be sorted, because vtfont_lookup() performs a binary search.  Each
- * font has two remapping tables, for normal and bold.  When a character
- * is not present in bold, it uses a normal glyph.  When no glyph is
- * available, it uses glyph 0, which is normally equal to U+FFFD.
+ * Fonts support normal and bold weights, and single and double width glyphs.
+ * Mapping tables are used to map Unicode points to glyphs.  They are sorted by
+ * code point, and vtfont_lookup() uses this to perform a binary search.  Each
+ * font has four mapping tables: two weights times two halves (left/single,
+ * right).  When a character is not present in a bold map the glyph from the
+ * normal map is used.  When no glyph is available, it uses glyph 0, which is
+ * normally equal to U+FFFD.
  */
 
 enum vfnt_map_type {