* [PATCH] Please revert console ASCII glyph 1:1 mapping
@ 2009-04-18 20:17 Samuel Thibault
0 siblings, 0 replies; 2+ messages in thread
From: Samuel Thibault @ 2009-04-18 20:17 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable
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
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH] Please revert console ASCII glyph 1:1 mapping
@ 2009-04-18 20:17 Samuel Thibault
0 siblings, 0 replies; 2+ messages in thread
From: Samuel Thibault @ 2009-04-18 20:17 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-04-18 20:17 Samuel Thibault
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