🪲 Fix some effects on GNOME 48

src/utils.js

@@ -20,8 +20,10 @@ import GLib from 'gi://GLib';
 // We import some modules optionally. This file is used in the preferences process as well
 // as in the GNOME Shell process. Some modules are only available or required in one of
 // these processes.
+const GdkPixbuf = await importInShellOnly('gi://GdkPixbuf');
 const Clutter = await importInShellOnly('gi://Clutter');
 const Cogl    = await importInShellOnly('gi://Cogl');
+const St    = await importInShellOnly('gi://St');
 
 // We import the Config module. This is done differently in the GNOME Shell process and in
 // the preferences process.
@@ -117,6 +119,30 @@ export function getStringResource(path) {
   return new TextDecoder().decode(data.get_data());
 }
 
+// Reads the contents of an image file contained in the global resources archive. The data
+// is returned as a St.ImageContent.
+export function getImageResource(path, premultiplied=false) {
+  const data    = GdkPixbuf.Pixbuf.new_from_resource(path);
+  const texture = St.ImageContent.new_with_preferred_size(data.width, data.height);
+  const format = data.has_alpha ? (premultiplied ? Cogl.PixelFormat.RGBA_8888_PRE : Cogl.PixelFormat.RGBA_8888) : Cogl.PixelFormat.RGB_888;
+
+  // https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/44b84e458a22046fedb85701ea25ad08ecc0d43f
+  if (shellVersionIsAtLeast(48, 'beta')) {
+  texture.set_data(
+    global.stage.context.get_backend().get_cogl_context(),
+    data.get_pixels(),
+    format,
+    data.width, data.height, data.rowstride);
+  } else {
+    texture.set_data(
+      data.get_pixels(),
+      format,
+      data.width, data.height, data.rowstride);
+  }
+
+  return texture;
+}
+
 // Executes a command asynchronously and returns the output from 'stdout' on success or
 // throw an error with output from 'stderr' on failure. If given, input will be passed to
 // 'stdin' and cancellable can be used to stop the process before it finishes.