[PATCH 1/2] fbdev: Fix sys_imageblit() for arbitrary image widths

Geert Uytterhoeven geert at linux-m68k.org
Mon Mar 14 20:56:45 UTC 2022


Hi Thomas,

On Sun, Mar 13, 2022 at 8:29 PM Thomas Zimmermann <tzimmermann at suse.de> wrote:
> Commit 6f29e04938bf ("fbdev: Improve performance of sys_imageblit()")
> broke sys_imageblit() for image width that are not aligned to 8-bit
> boundaries. Fix this by handling the trailing pixels on each line
> separately. The performance improvements in the original commit do not
> regress by this change.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>

Thanks for fixing! This was very valuable for hammering the bugs
out of ssd130xdrm and the xrgb888-to-mono conversion...

Tested-by: Geert Uytterhoeven <geert at linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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