drm/vkms: Introduce pixel_read_direction enum

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The pixel_read_direction enum is useful to describe the reading direction
in a plane. It avoids using the rotation property of DRM, which not
practical to know the direction of reading.
This patch also introduce two helpers, one to compute the
pixel_read_direction from the DRM rotation property, and one to compute
the step, in byte, between two successive pixel in a specific direction.

Acked-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118-yuv-v14-7-2dbc2f1e222c@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>

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Louis Chauvet 2024-11-18 19:28:22 +01:00

parent cb6de83faa

commit b52fd27356

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44

drivers/gpu/drm/vkms/vkms_composer.c

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11

drivers/gpu/drm/vkms/vkms_drv.h

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32

drivers/gpu/drm/vkms/vkms_formats.c

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