Merge remote-tracking branch 'origin/5.15' into dev

Change-Id: Iab9b3a7d004a2e4b4de816f4a2d7ed2fb936d3ae

1 files changed, 14 insertions, 0 deletions

diff --git a/src/gui/vulkan/qvulkaninstance.cpp b/src/gui/vulkan/qvulkaninstance.cpp
index 0605d88cca..daf37e3dc8 100644
--- a/src/gui/vulkan/qvulkaninstance.cpp
+++ b/src/gui/vulkan/qvulkaninstance.cpp
@@ -775,6 +775,20 @@ bool QVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice, uint32_t
 }
 
 /*!
+    This function should be called by the application's renderer before queuing
+    a present operation for \a window.
+
+    While on some platforms this will be a no-op, some may perform windowing
+    system dependent synchronization. For example, on Wayland this will
+    add send a wl_surface.frame request in order to prevent the driver from
+    blocking for minimized windows.
+ */
+void QVulkanInstance::presentAboutToBeQueued(QWindow *window)
+{
+    d_ptr->platformInst->presentAboutToBeQueued(window);
+}
+
+/*!
     This function should be called by the application's renderer after queuing
     a present operation for \a window.