V4L/DVB (9235): Precalculate vivi yuv values

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This patch improves the color space conversion code in vivi.c to
directly draw with precalculated YUV values as palette instead of
drawing with YUV that is calculated from RGB for every two pixels.
This way we eliminate the need for 9 multiplications every two pixels.

A side effect of this patch is that the time counter is changed from
green text on black background to white text on black background.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Magnus Damm 2008-10-14 12:46:59 -03:00 • committed by Mauro Carvalho Chehab

parent d54c17e435

commit 74d7c5af78

1 changed files with 58 additions and 59 deletions

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115

drivers/media/video/vivi.c

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