buffer: add backendLock

hyprwm · Jul 19, 2024 · 35e00a4 · 35e00a4
1 parent 9d7c69c
commit 35e00a4
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Showing 2 changed files with 17 additions and 1 deletion.
diff --git a/include/aquamarine/buffer/Buffer.hpp b/include/aquamarine/buffer/Buffer.hpp
@@ -62,12 +62,14 @@ namespace Aquamarine {
         virtual bool                                   locked();
 
         Hyprutils::Math::Vector2D                      size;
-        bool                                           opaque = false;
+        bool                                           opaque          = false;
+        bool                                           lockedByBackend = false;
 
         CAttachmentManager                             attachments;
 
         struct {
             Hyprutils::Signal::CSignal destroy;
+            Hyprutils::Signal::CSignal backendRelease;
         } events;
 
       private:

diff --git a/src/backend/drm/DRM.cpp b/src/backend/drm/DRM.cpp
@@ -1236,6 +1236,11 @@ void Aquamarine::SDRMConnector::applyCommit(const SDRMConnectorCommitData& data)
     if (crtc->cursor && data.cursorFB)
         crtc->cursor->back = data.cursorFB;
 
+    if (data.mainFB)
+        data.mainFB->buffer->lockedByBackend = true;
+    if (crtc->cursor && data.cursorFB)
+        data.cursorFB->buffer->lockedByBackend = true;
+
     pendingCursorFB.reset();
 
     if (output->state->state().committed & COutputState::AQ_OUTPUT_STATE_MODE)
@@ -1253,9 +1258,18 @@ void Aquamarine::SDRMConnector::rollbackCommit(const SDRMConnectorCommitData& da
 void Aquamarine::SDRMConnector::onPresent() {
     crtc->primary->last  = crtc->primary->front;
     crtc->primary->front = crtc->primary->back;
+    if (crtc->primary->last && crtc->primary->last->buffer) {
+        crtc->primary->last->buffer->lockedByBackend = false;
+        crtc->primary->last->buffer->events.backendRelease.emit();
+    }
+
     if (crtc->cursor) {
         crtc->cursor->last  = crtc->cursor->front;
         crtc->cursor->front = crtc->cursor->back;
+        if (crtc->cursor->last && crtc->cursor->last->buffer) {
+            crtc->cursor->last->buffer->lockedByBackend = false;
+            crtc->cursor->last->buffer->events.backendRelease.emit();
+        }
     }
 }