diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-07-14 17:13:08 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-08-26 09:54:19 +0200 |
| commit | 1adb35c2523fcd06cf1c24d788d6a958a24bc143 (patch) | |
| tree | a9fc3af1ec09a33bb540663f694f3fe7dba0b030 | |
| parent | cbc383cea0942cd827c6f1a3408793ac3a97ea00 (diff) | |
drm/vesadrm: Prepare color management for palette-based framebuffers
Distiguish between component-based formats and 'the rest' in vesadrm's
color management. Scanout buffers with component-based format allow
for gamma correction. Palette-based formats (i.e., 'the rest') require
palette setup.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250714151513.309475-9-tzimmermann@suse.de
| -rw-r--r-- | drivers/gpu/drm/sysfb/vesadrm.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/gpu/drm/sysfb/vesadrm.c b/drivers/gpu/drm/sysfb/vesadrm.c index 9596322c232b..b6e5ed1863f9 100644 --- a/drivers/gpu/drm/sysfb/vesadrm.c +++ b/drivers/gpu/drm/sysfb/vesadrm.c @@ -223,15 +223,22 @@ static void vesadrm_crtc_helper_atomic_flush(struct drm_crtc *crtc, * plane's color format. */ if (crtc_state->enable && crtc_state->color_mgmt_changed) { - if (sysfb_crtc_state->format == sysfb->fb_format) { - if (crtc_state->gamma_lut) - vesadrm_load_gamma_lut(vesa, - sysfb_crtc_state->format, - crtc_state->gamma_lut->data); - else + switch (sysfb->fb_format->format) { + /* + * Component formats + */ + default: + if (sysfb_crtc_state->format == sysfb->fb_format) { + if (crtc_state->gamma_lut) + vesadrm_load_gamma_lut(vesa, + sysfb_crtc_state->format, + crtc_state->gamma_lut->data); + else + vesadrm_fill_gamma_lut(vesa, sysfb_crtc_state->format); + } else { vesadrm_fill_gamma_lut(vesa, sysfb_crtc_state->format); - } else { - vesadrm_fill_gamma_lut(vesa, sysfb_crtc_state->format); + } + break; } } } |