From 1911e4262baed82c3d7b7354ae52155a5839594d Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Sat, 22 Apr 2023 12:36:50 +0100
Subject: renderer: skip rendering bottom layers on fullscreen opaque

---
 src/Window.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/Window.cpp')

diff --git a/src/Window.cpp b/src/Window.cpp
index 87bf2d21..1392650b 100644
--- a/src/Window.cpp
+++ b/src/Window.cpp
@@ -668,3 +668,18 @@ void CWindow::updateGroupOutputs() {
 Vector2D CWindow::middle() {
     return m_vRealPosition.goalv() + m_vRealSize.goalv() / 2.f;
 }
+
+bool CWindow::opaque() {
+    if (m_bIsX11)
+        return !m_uSurface.xwayland->has_alpha;
+
+    if (m_uSurface.xdg->surface->opaque)
+        return true;
+
+    const auto EXTENTS = pixman_region32_extents(&m_uSurface.xdg->surface->opaque_region);
+    if (EXTENTS->x2 - EXTENTS->x1 >= m_uSurface.xdg->surface->current.buffer_width
+        && EXTENTS->y2 - EXTENTS->y1 >= m_uSurface.xdg->surface->current.buffer_height)
+        return true;
+
+    return false;
+}
-- 
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