Am 30.09.22 um 17:29 schrieb Javier Martinez Canillas:
The drm_atomic_helper_damage_merged() helper merges all the damage clips into one rectangle. If there are multiple damage clips that aren't close to each other, the resulting rectangle could be quite big. Instead of using that function helper, iterate over all the damage clips and update them one by one. Suggested-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx> Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
--- Changes in v2: - Move the dst_clip assignment inside the drm_atomic_for_each_plane_damage() loop (Thomas Zimmermann). - Pass dst_clip instead of damage area as argument to ssd130x_fb_blit_rect() function (Thomas Zimmermann) drivers/gpu/drm/solomon/ssd130x.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c index bc41a5ae810a..f456b233d2e7 100644 --- a/drivers/gpu/drm/solomon/ssd130x.c +++ b/drivers/gpu/drm/solomon/ssd130x.c @@ -578,21 +578,24 @@ static void ssd130x_primary_plane_helper_atomic_update(struct drm_plane *plane, struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane); struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state); + struct drm_atomic_helper_damage_iter iter; struct drm_device *drm = plane->dev; - struct drm_rect src_clip, dst_clip; + struct drm_rect dst_clip; + struct drm_rect damage; int idx;- if (!drm_atomic_helper_damage_merged(old_plane_state, plane_state, &src_clip))+ if (!drm_dev_enter(drm, &idx)) return;- dst_clip = plane_state->dst;- if (!drm_rect_intersect(&dst_clip, &src_clip)) - return; + drm_atomic_helper_damage_iter_init(&iter, old_plane_state, plane_state); + drm_atomic_for_each_plane_damage(&iter, &damage) { + dst_clip = plane_state->dst;- if (!drm_dev_enter(drm, &idx))- return; + if (!drm_rect_intersect(&dst_clip, &damage)) + continue;- ssd130x_fb_blit_rect(plane_state->fb, &shadow_plane_state->data[0], &dst_clip);+ ssd130x_fb_blit_rect(plane_state->fb, &shadow_plane_state->data[0], &dst_clip); + }drm_dev_exit(idx);}
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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