Blend mode properties are now required to expose pixel formats w/ alpha.
Experiments show that the fixed blending mode for the cursor seems to be
COVERAGE:
- With a cursor plane filled with R=G=0, B=0xff, A=0x40, the cursor is
visible on a pure-white background, which means the background is
multiplied.
- With a cursor plane filled with R=G=B=0xff, A=0x40, the cursor isn't
pure white and non-white patterns can be see through, which means the
cursor is multiplied.
Add a fixed COVERAGE blend mode property for the cursor plane.
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260910094904.3502741-1-zhengxingda@iscas.ac.cn
The cursor plane patch was stalled for a too long time that the
struct drm_atomic_state parameter of atomic modeset hooks has been
changed to struct drm_atomic_commit.
Fix this by replacing the parameter's type. All helpers that retrieve
information from this struct are also changed so simply replacing the
type works.
Fixes: 8c4ae21891 ("drm: verisilicon: add support for cursor planes")
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260525153618.1336239-1-zhengxingda@iscas.ac.cn
Verisilicon display controllers support hardware cursors per output
port.
Add support for them as cursor planes.
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20260506175610.2542888-3-zhengxingda@iscas.ac.cn
