drm/vc4: plane: Add support for YUV444 formats

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Support displaying DRM_FORMAT_YUV444 and DRM_FORMAT_YVU444 formats.
Tested with kmstest and kodi. e.g.

kmstest -r 1920x1080@60 -f 400x300-YU24

Note: without the shift of width, only half the chroma is fetched,
resulting in correct left half of image and corrupt colours on right half.

The increase in width shouldn't affect fetching of Y data,
as the hardware will clamp at dest width.

Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-6-dave.stevenson@raspberrypi.com
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

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Dom Cobley 2024-06-21 16:20:29 +01:00 • committed by Dave Stevenson

parent b4e5646178

commit 31c8a80b93

1 changed files with 18 additions and 0 deletions

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drivers/gpu/drm/vc4/vc4_plane.c

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