drm/atomic: clip damage to pixel size

ref hyprwm/Hyprland#7356
hyprwm · Aug 15, 2024 · e947af7 · e947af7
1 parent 5893461
commit e947af7
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/backend/drm/impl/Atomic.cpp b/src/backend/drm/impl/Atomic.cpp
@@ -221,6 +221,7 @@ Aquamarine::CDRMAtomicImpl::CDRMAtomicImpl(Hyprutils::Memory::CSharedPointer<CDR
 bool Aquamarine::CDRMAtomicImpl::prepareConnector(Hyprutils::Memory::CSharedPointer<SDRMConnector> connector, SDRMConnectorCommitData& data) {
     const auto& STATE  = connector->output->state->state();
     const bool  enable = STATE.enabled;
+    const auto& MODE   = STATE.mode ? STATE.mode : STATE.customMode;
 
     if (data.modeset) {
         if (!enable)
@@ -262,11 +263,12 @@ bool Aquamarine::CDRMAtomicImpl::prepareConnector(Hyprutils::Memory::CSharedPoin
         }
     }
 
-    if (STATE.committed & COutputState::AQ_OUTPUT_STATE_DAMAGE && connector->crtc->primary->props.fb_damage_clips) {
+    if ((STATE.committed & COutputState::AQ_OUTPUT_STATE_DAMAGE) && connector->crtc->primary->props.fb_damage_clips && MODE) {
         if (STATE.damage.empty())
             data.atomic.fbDamage = 0;
         else {
-            std::vector<pixman_box32_t> rects = STATE.damage.getRects();
+            TRACE(connector->backend->backend->log(AQ_LOG_TRACE, std::format("atomic drm: clipping damage to pixel size {}", MODE->pixelSize)));
+            std::vector<pixman_box32_t> rects = STATE.damage.copy().intersect(CBox{{}, MODE->pixelSize}).getRects();
             if (drmModeCreatePropertyBlob(connector->backend->gpu->fd, rects.data(), sizeof(pixman_box32_t) * rects.size(), &data.atomic.fbDamage)) {
                 connector->backend->backend->log(AQ_LOG_ERROR, "atomic drm: failed to create a damage blob");
                 return false;