[DisplayServer] Add method to check if window transparency is supported and enabled.

5 files changed, 12 insertions, 0 deletions

diff --git a/servers/display_server.cpp b/servers/display_server.cpp
index 17f1548017..2150a3038e 100644
--- a/servers/display_server.cpp
+++ b/servers/display_server.cpp
@@ -996,6 +996,8 @@ void DisplayServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("tablet_get_current_driver"), &DisplayServer::tablet_get_current_driver);
 	ClassDB::bind_method(D_METHOD("tablet_set_current_driver", "name"), &DisplayServer::tablet_set_current_driver);
 
+	ClassDB::bind_method(D_METHOD("is_window_transparency_available"), &DisplayServer::is_window_transparency_available);
+
 #ifndef DISABLE_DEPRECATED
 	BIND_ENUM_CONSTANT(FEATURE_GLOBAL_MENU);
 #endif
diff --git a/servers/display_server.h b/servers/display_server.h
index 9a9bb28a06..5224d59c04 100644
--- a/servers/display_server.h
+++ b/servers/display_server.h
@@ -580,6 +580,8 @@ public:
 
 	virtual void set_context(Context p_context);
 
+	virtual bool is_window_transparency_available() const { return false; }
+
 	static void register_create_function(const char *p_name, CreateFunction p_function, GetRenderingDriversFunction p_get_drivers);
 	static int get_create_function_count();
 	static const char *get_create_function_name(int p_index);
diff --git a/servers/rendering/rendering_device.cpp b/servers/rendering/rendering_device.cpp
index 15e1731823..98dc9885fc 100644
--- a/servers/rendering/rendering_device.cpp
+++ b/servers/rendering/rendering_device.cpp
@@ -4734,6 +4734,10 @@ String RenderingDevice::get_device_api_name() const {
 	return driver->get_api_name();
 }
 
+bool RenderingDevice::is_composite_alpha_supported() const {
+	return driver->is_composite_alpha_supported(main_queue);
+}
+
 String RenderingDevice::get_device_api_version() const {
 	return driver->get_api_version();
 }
diff --git a/servers/rendering/rendering_device.h b/servers/rendering/rendering_device.h
index 42773fc347..d0fa4ab1fa 100644
--- a/servers/rendering/rendering_device.h
+++ b/servers/rendering/rendering_device.h
@@ -1360,6 +1360,8 @@ public:
 	String get_device_api_version() const;
 	String get_device_pipeline_cache_uuid() const;
 
+	bool is_composite_alpha_supported() const;
+
 	uint64_t get_driver_resource(DriverResource p_resource, RID p_rid = RID(), uint64_t p_index = 0);
 
 	static RenderingDevice *get_singleton();
diff --git a/servers/rendering/rendering_device_driver.h b/servers/rendering/rendering_device_driver.h
index e9464ba321..f9a861426a 100644
--- a/servers/rendering/rendering_device_driver.h
+++ b/servers/rendering/rendering_device_driver.h
@@ -769,6 +769,8 @@ public:
 	virtual String get_pipeline_cache_uuid() const = 0;
 	virtual const Capabilities &get_capabilities() const = 0;
 
+	virtual bool is_composite_alpha_supported(CommandQueueID p_queue) const { return false; }
+
 	/******************/
 
 	virtual ~RenderingDeviceDriver();