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| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2025-07-21 12:43:35 +0200 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2025-09-01 15:35:07 +0200 |
| commit | 8bde81ec684238587decd5ab6b1bf18041814937 (patch) | |
| tree | b8ffe67ee51aeadc0e7f4bb8b206535b83889ae7 /include/drm | |
| parent | drm/st7571-i2c: add support for inverted pixel format (diff) | |
| download | linux-8bde81ec684238587decd5ab6b1bf18041814937.tar.gz linux-8bde81ec684238587decd5ab6b1bf18041814937.zip | |
drm/format-helper: introduce drm_fb_xrgb8888_to_gray2()
Convert XRGB8888 to 2bit grayscale.
It uses drm_fb_xrgb8888_to_gray8() to convert the pixels to gray8 as an
intermediate step before converting to gray2.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250721-st7571-format-v2-5-159f4134098c@gmail.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_format_helper.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 562bc383ece4..32d57d6c5327 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -136,4 +136,8 @@ void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitc const struct iosys_map *src, const struct drm_framebuffer *fb, const struct drm_rect *clip, struct drm_format_conv_state *state); +void drm_fb_xrgb8888_to_gray2(struct iosys_map *dst, const unsigned int *dst_pitch, + const struct iosys_map *src, const struct drm_framebuffer *fb, + const struct drm_rect *clip, struct drm_format_conv_state *state); + #endif /* __LINUX_DRM_FORMAT_HELPER_H */ |