From: Thomas Zimmermann <tzimmermann@suse.de>
To: daniel@ffwll.ch, deller@gmx.de, m.szyprowski@samsung.com,
geert@linux-m68k.org, javierm@redhat.com, sam@ravnborg.org
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH 0/2] fbdev: Fix image blitting for arbitrary image widths
Date: Sun, 13 Mar 2022 20:29:50 +0100 [thread overview]
Message-ID: <20220313192952.12058-1-tzimmermann@suse.de> (raw)
Recent optimization of the fbdev image-bitting helpers broke the code for
image width that do not align with multiples of 8. Both, sys and cfb, are
affected. Fix this problem by handling the trailing pixels on each line
separately.
Tested with simpledrm and the 7x14 font.
Thomas Zimmermann (2):
fbdev: Fix sys_imageblit() for arbitrary image widths
fbdev: Fix cfb_imageblit() for arbitrary image widths
drivers/video/fbdev/core/cfbimgblt.c | 28 +++++++++++++++++++++++----
drivers/video/fbdev/core/sysimgblt.c | 29 ++++++++++++++++++++++++----
2 files changed, 49 insertions(+), 8 deletions(-)
--
2.35.1
next reply other threads:[~2022-03-13 19:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-13 19:29 Thomas Zimmermann [this message]
2022-03-13 19:29 ` [PATCH 1/2] fbdev: Fix sys_imageblit() for arbitrary image widths Thomas Zimmermann
2022-03-14 20:56 ` Geert Uytterhoeven
2022-03-17 11:20 ` Javier Martinez Canillas
2022-03-13 19:29 ` [PATCH 2/2] fbdev: Fix cfb_imageblit() " Thomas Zimmermann
2022-03-14 8:41 ` Marek Szyprowski
2022-03-17 10:54 ` Daniel Vetter
2022-03-17 11:22 ` Javier Martinez Canillas
2022-03-24 21:15 ` [2/2] " Guenter Roeck
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