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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-02 12:29:16 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-03 14:23:24 +0100 |
| commit | a5b1a681dcac2eb75129e5e1bc2530dbd6febc44 (patch) | |
| tree | cbc1daac9aa9b1820f0555f62848131b7a3608b3 /drivers/gpu/drm/drm_format_helper.c | |
| parent | f35cd3fa77293c2cd03e94b6a6151e1a7d9309cf (diff) | |
| download | linux-a5b1a681dcac2eb75129e5e1bc2530dbd6febc44.tar.gz linux-a5b1a681dcac2eb75129e5e1bc2530dbd6febc44.tar.bz2 linux-a5b1a681dcac2eb75129e5e1bc2530dbd6febc44.zip | |
drm/format-helper: Comment on RGB888 byte order
RGB888 is different than the other formats as most of its pixels are
unaligned and therefore helper functions do not use endianness conversion
helpers. Comment on this in the source code.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_format_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_format_helper.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 74ff33c2ddaa..b98bd7c5caee 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -404,6 +404,7 @@ static void drm_fb_xrgb8888_to_rgb888_line(void *dbuf, const void *sbuf, unsigne for (x = 0; x < pixels; x++) { pix = le32_to_cpu(sbuf32[x]); + /* write blue-green-red to output in little endianness */ *dbuf8++ = (pix & 0x000000FF) >> 0; *dbuf8++ = (pix & 0x0000FF00) >> 8; *dbuf8++ = (pix & 0x00FF0000) >> 16; |