drm/format-helper: Optimize 32-to-8-bpp conversion

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For ease of implementation, existing line-conversion functions
for 8-bit formats write each pixel individually. Optimize the
performance by writing multiple pixels in a single 32-bit store.

v2:
- simplify address calculation (Jani)
- fix typo in commit message (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250328141709.217283-9-tzimmermann@suse.de

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Thomas Zimmermann 2025-03-28 15:15:04 +01:00

parent 3f31a017dd

commit 65931bbc51

1 changed files with 20 additions and 1 deletions

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drivers/gpu/drm/drm_format_helper.c

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