drm/vkms: Compute CRC without change input data

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This commit decouples pixel manipulation from compute_crc() for avoiding
any pixel change during the CRC calculation. This commits represents a
preparation work for making VKMS able to support the writeback feature.

Change in V5 (Melissa):
- Rebase and drop bitmap for alpha
Change in V4 (Emil):
- Move bitmap_clear operation and comments to get_pixel function

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reviewed-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200830142000.146706-3-rodrigosiqueiramelo@gmail.com

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Rodrigo Siqueira 2020-08-30 10:19:59 -04:00

parent 953025763d

commit 60cc20214c

1 changed files with 22 additions and 12 deletions

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32

drivers/gpu/drm/vkms/vkms_composer.c

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