From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
torvalds@osdl.org, stable@kernel.org
Subject: [PATCH] Please revert console ASCII glyph 1:1 mapping
Date: Sat, 18 Apr 2009 22:17:17 +0200 [thread overview]
Message-ID: <20090418201717.GL21409@const> (raw)
This reverts commit 1c55f187 (console ASCII glyph 1:1 mapping): Ingo
was assuming that reverting to 1:1 mapping for chars >= 128 was not
useful, but it happens to be: due to the limitations of the Linux
console, when a blind user wants to read BIG5 on it, he has no other
way than loading a font without SFM and let the 1:1 mapping permit the
screen reader to get the BIG5 encoding.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
reverted:
--- b/drivers/char/vt.c
+++ a/drivers/char/vt.c
@@ -2274,7 +2274,7 @@
continue; /* nothing to display */
}
/* Glyph not found */
+ if ((!(vc->vc_utf && !vc->vc_disp_ctrl) || c < 128) && !(c & ~charmask)) {
- if ((!(vc->vc_utf && !vc->vc_disp_ctrl) && c < 128) && !(c & ~charmask)) {
/* In legacy mode use the glyph we get by a 1:1 mapping.
This would make absolutely no sense with Unicode in mind,
but do this for ASCII characters since a font may lack
next reply other threads:[~2009-04-18 20:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-18 20:17 Samuel Thibault [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-04-18 20:17 [PATCH] Please revert console ASCII glyph 1:1 mapping Samuel Thibault
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