[scenefx] rounded corners and opacity

Signed-off-by: Shinyzenith <[email protected]>

.gitmodules

@@ -14,14 +14,13 @@
  path = deps/zig-clap
  url = https://github.com/Hejsil/zig-clap
  ignore = dirty
-[submodule "deps/zig-wlroots"]
- path = deps/zig-wlroots
- url = https://github.com/swaywm/zig-wlroots.git
- ignore = dirty
 [submodule "deps/zig-pixman"]
  path = deps/zig-pixman
  url = https://github.com/ifreund/zig-pixman
 [submodule "deps/scenefx"]
  path = deps/scenefx
  url = https://github.com/wlrfx/scenefx
  ignore = dirty
+[submodule "deps/zig-wlroots"]
+ path = deps/zig-wlroots
+ url = https://github.com/shinyzenith/zig-wlr

build.zig

@@ -100,6 +100,7 @@ pub fn build(builder: *std.build.Builder) !void {
  exe.linkSystemLibrary("wlroots");
  exe.linkSystemLibrary("xkbcommon");
  exe.addObjectFile(std.fmt.comptimePrint("{s}/build/libscenefx.so.{d}", .{ scenefx_path, new_so_version }));
+ exe.addIncludePath(std.fmt.comptimePrint("{s}/include/wlr", .{scenefx_path}));
  }
  exe.install();
 

next/Config.zig

@@ -33,6 +33,10 @@ repeat_delay: i32 = 300,
 
 border_width: u8 = 2,
 
+//TODO: make these configurable
+toplevel_corner_radius: c_int = 20,
+toplevel_opacity: f32 = 1, // Ranges from 0 to 1
+
 pub fn init() Self {
  log.debug("Initialized compositor config", .{});
  const self = .{};

next/desktop/Output.zig

@@ -101,6 +101,36 @@ pub fn init(self: *Self, wlr_output: *wlr.Output) !void {
  }
 }
 
+fn configure_node_decoration(self: *Self, node: *wlr.SceneNode) void {
+ if (!node.enabled) {
+ return;
+ }
+
+ if (node.type == .buffer) {
+ const scene_buffer = wlr.SceneBuffer.fromNode(node);
+ const scene_surface = wlr.SceneSurface.fromBuffer(scene_buffer) orelse return;
+
+ var xdg_surface: *wlr.XdgSurface = undefined;
+ if (wlr.Surface.isXdgSurface(scene_surface.surface)) {
+ xdg_surface = wlr.XdgSurface.fromWlrSurface(scene_surface.surface) orelse return;
+ }
+
+ if (xdg_surface.role == .toplevel) {
+ scene_buffer.setOpacity(self.server.config.toplevel_opacity);
+
+ if (!wlr.Surface.isSubsurface(xdg_surface.surface)) {
+ scene_buffer.setCornerRadius(self.server.config.toplevel_corner_radius);
+ }
+ }
+ } else if (node.type == .tree) {
+ const tree = @fieldParentPtr(wlr.SceneTree, "node", node);
+ var it = tree.children.safeIterator(.forward);
+ while (it.next()) |scene_node| {
+ configure_node_decoration(self, scene_node);
+ }
+ }
+}
+
 pub fn init_wallpaper_rendering(self: *Self) !void {
  // We do some cleanup first.
  const wallpaper_path = allocator.dupe(u8, self.wallpaper_path.?) catch return error.OOM;
@@ -164,6 +194,9 @@ fn handleFrame(listener: *wl.Listener(*wlr.Output), _: *wlr.Output) void { // Ge
  // Get the scene output with respect to the wlr.Output object that's being passed.
  const scene_output = self.server.wlr_scene.getSceneOutput(self.wlr_output).?;
 
+ // Pass decoration data to the scene nodes.
+ self.configure_node_decoration(&scene_output.scene.tree.node);
+
  // Commit the output to the scene.
  _ = scene_output.commit();