Merge pull request #47568 from Calinou/add-boot-splash-image-setting-3.x

doc/classes/ProjectSettings.xml

@@ -175,13 +175,17 @@
 			Background color for the boot splash.
 		</member>
 		<member name="application/boot_splash/fullsize" type="bool" setter="" getter="" default="true">
-			If [code]true[/code], scale the boot splash image to the full window length when engine starts. If [code]false[/code], the engine will leave it at the default pixel size.
+			If [code]true[/code], scale the boot splash image to the full window size (preserving the aspect ratio) when the engine starts. If [code]false[/code], the engine will leave it at the default pixel size.
 		</member>
 		<member name="application/boot_splash/image" type="String" setter="" getter="" default="&quot;&quot;">
-			Path to an image used as the boot splash.
+			Path to an image used as the boot splash. If left empty, the default Godot Engine splash will be displayed instead.
+			[b]Note:[/b] Only effective if [member application/boot_splash/show_image] is [code]true[/code].
+		</member>
+		<member name="application/boot_splash/show_image" type="bool" setter="" getter="" default="true">
+			If [code]true[/code], displays the image specified in [member application/boot_splash/image] when the engine starts. If [code]false[/code], only displays the plain color specified in [member application/boot_splash/bg_color].
 		</member>
 		<member name="application/boot_splash/use_filter" type="bool" setter="" getter="" default="true">
-			If [code]true[/code], applies linear filtering when scaling the image (recommended for high resolution artwork). If [code]false[/code], uses nearest-neighbor interpolation (recommended for pixel art).
+			If [code]true[/code], applies linear filtering when scaling the image (recommended for high-resolution artwork). If [code]false[/code], uses nearest-neighbor interpolation (recommended for pixel art).
 		</member>
 		<member name="application/config/custom_user_dir_name" type="String" setter="" getter="" default="&quot;&quot;">
 			This user directory is used for storing persistent data ([code]user://[/code] filesystem). If left empty, [code]user://[/code] resolves to a project-specific folder in Godot's own configuration folder (see [method OS.get_user_data_dir]). If a custom directory name is defined, this name will be used instead and appended to the system-specific user data directory (same parent folder as the Godot configuration folder documented in [method OS.get_user_data_dir]).

main/main.cpp

@@ -1364,20 +1364,28 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
 	VisualServer::get_singleton()->set_default_clear_color(clear);
 
 	if (show_logo) { //boot logo!
-		String boot_logo_path = GLOBAL_DEF("application/boot_splash/image", String());
-		bool boot_logo_scale = GLOBAL_DEF("application/boot_splash/fullsize", true);
-		bool boot_logo_filter = GLOBAL_DEF("application/boot_splash/use_filter", true);
+		const bool boot_logo_image = GLOBAL_DEF("application/boot_splash/show_image", true);
+		const String boot_logo_path = String(GLOBAL_DEF("application/boot_splash/image", String())).strip_edges();
+		const bool boot_logo_scale = GLOBAL_DEF("application/boot_splash/fullsize", true);
+		const bool boot_logo_filter = GLOBAL_DEF("application/boot_splash/use_filter", true);
 		ProjectSettings::get_singleton()->set_custom_property_info("application/boot_splash/image", PropertyInfo(Variant::STRING, "application/boot_splash/image", PROPERTY_HINT_FILE, "*.png"));
 
 		Ref<Image> boot_logo;
 
-		boot_logo_path = boot_logo_path.strip_edges();
-
-		if (boot_logo_path != String()) {
+		if (boot_logo_image) {
+			if (boot_logo_path != String()) {
+				boot_logo.instance();
+				Error load_err = ImageLoader::load_image(boot_logo_path, boot_logo);
+				if (load_err)
+					ERR_PRINT("Non-existing or invalid boot splash at '" + boot_logo_path + "'. Loading default splash.");
+			}
+		} else {
+			// Create a 1×1 transparent image. This will effectively hide the splash image.
 			boot_logo.instance();
-			Error load_err = ImageLoader::load_image(boot_logo_path, boot_logo);
-			if (load_err)
-				ERR_PRINT("Non-existing or invalid boot splash at '" + boot_logo_path + "'. Loading default splash.");
+			boot_logo->create(1, 1, false, Image::FORMAT_RGBA8);
+			boot_logo->lock();
+			boot_logo->set_pixel(0, 0, Color(0, 0, 0, 0));
+			boot_logo->unlock();
 		}
 
 #if defined(TOOLS_ENABLED) && !defined(NO_EDITOR_SPLASH)