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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-02 14:29:18 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-03 16:24:08 +0300 |
| commit | f21d62c9ce3db2c74875a15bec6afbae93ee43cc (patch) | |
| tree | 6fb97727b4005415b2c289b1e0081ec5da47b973 /drivers/gpu/drm/drm_format_helper.c | |
| parent | 58f5d9830da0d4f257cc39244ba982cf90e3199c (diff) | |
| download | linux-f21d62c9ce3db2c74875a15bec6afbae93ee43cc.tar.xz | |
drm/format-helper: Store RGB565 in little-endian order
Fix to-RGB565 conversion helpers to store the result in little-
endian byte order. Update test cases as well.
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/20230102112927.26565-5-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_format_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_format_helper.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index b98bd7c5caee..f3f3b3809a3e 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -322,7 +322,7 @@ EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332); static void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigned int pixels) { - u16 *dbuf16 = dbuf; + __le16 *dbuf16 = dbuf; const __le32 *sbuf32 = sbuf; unsigned int x; u16 val16; @@ -333,14 +333,15 @@ static void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigne val16 = ((pix & 0x00F80000) >> 8) | ((pix & 0x0000FC00) >> 5) | ((pix & 0x000000F8) >> 3); - dbuf16[x] = val16; + dbuf16[x] = cpu_to_le16(val16); } } +/* TODO: implement this helper as conversion to RGB565|BIG_ENDIAN */ static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf, unsigned int pixels) { - u16 *dbuf16 = dbuf; + __le16 *dbuf16 = dbuf; const __le32 *sbuf32 = sbuf; unsigned int x; u16 val16; @@ -351,7 +352,7 @@ static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf, val16 = ((pix & 0x00F80000) >> 8) | ((pix & 0x0000FC00) >> 5) | ((pix & 0x000000F8) >> 3); - dbuf16[x] = swab16(val16); + dbuf16[x] = cpu_to_le16(swab16(val16)); } } |