1 files changed, 120 insertions, 0 deletions
diff --git a/raveos-theme/gnome/theme-data/extensions/installed/blur-my-shell@aunetx/effects/derivative.js b/raveos-theme/gnome/theme-data/extensions/installed/blur-my-shell@aunetx/effects/derivative.js
new file mode 100644
index 0000000..04d6100
--- /dev/null
+++ b/raveos-theme/gnome/theme-data/extensions/installed/blur-my-shell@aunetx/effects/derivative.js
@@ -0,0 +1,120 @@
+import GObject from 'gi://GObject';
+
+import * as utils from '../conveniences/utils.js';
+const Shell = await utils.import_in_shell_only('gi://Shell');
+const Clutter = await utils.import_in_shell_only('gi://Clutter');
+
+const SHADER_FILENAME = 'derivative.glsl';
+const DEFAULT_PARAMS = {
+    operation: 0, width: 0, height: 0
+};
+
+
+export const DerivativeEffect = utils.IS_IN_PREFERENCES ?
+    { default_params: DEFAULT_PARAMS } :
+    new GObject.registerClass({
+        GTypeName: "DerivativeEffect",
+        Properties: {
+            'operation': GObject.ParamSpec.int(
+                `operation`,
+                `Operation`,
+                `Operation`,
+                GObject.ParamFlags.READWRITE,
+                0, 2,
+                0,
+            ),
+            'width': GObject.ParamSpec.double(
+                `width`,
+                `Width`,
+                `Width`,
+                GObject.ParamFlags.READWRITE,
+                0.0, Number.MAX_SAFE_INTEGER,
+                0.0,
+            ),
+            'height': GObject.ParamSpec.double(
+                `height`,
+                `Height`,
+                `Height`,
+                GObject.ParamFlags.READWRITE,
+                0.0, Number.MAX_SAFE_INTEGER,
+                0.0,
+            )
+        }
+    }, class DerivativeEffect extends Clutter.ShaderEffect {
+        constructor(params) {
+            super(params);
+
+            utils.setup_params(this, params);
+
+            // set shader source
+            this._source = utils.get_shader_source(Shell, SHADER_FILENAME, import.meta.url);
+            if (this._source)
+                this.set_shader_source(this._source);
+        }
+
+        static get default_params() {
+            return DEFAULT_PARAMS;
+        }
+
+        get operation() {
+            return this._operation;
+        }
+
+        set operation(value) {
+            if (this._operation !== value) {
+                this._operation = value;
+
+                this.set_uniform_value('operation', this._operation);
+            }
+        }
+
+        get width() {
+            return this._width;
+        }
+
+        set width(value) {
+            if (this._width !== value) {
+                this._width = value;
+
+                this.set_uniform_value('width', parseFloat(this._width - 1e-6));
+            }
+        }
+
+        get height() {
+            return this._height;
+        }
+
+        set height(value) {
+            if (this._height !== value) {
+                this._height = value;
+
+                this.set_uniform_value('height', parseFloat(this._height - 1e-6));
+            }
+        }
+
+        vfunc_set_actor(actor) {
+            if (this._actor_connection_size_id) {
+                let old_actor = this.get_actor();
+                old_actor?.disconnect(this._actor_connection_size_id);
+            }
+            if (actor) {
+                this.width = actor.width;
+                this.height = actor.height;
+                this._actor_connection_size_id = actor.connect('notify::size', _ => {
+                    this.width = actor.width;
+                    this.height = actor.height;
+                });
+            }
+            else
+                this._actor_connection_size_id = null;
+
+            super.vfunc_set_actor(actor);
+        }
+
+        vfunc_paint_target(paint_node, paint_context) {
+            // force setting nearest-neighbour texture filtering
+            this.get_pipeline().set_layer_filters(0, 9728, 9728);
+
+            super.vfunc_paint_target(paint_node, paint_context);
+        }
+    });
+\ No newline at end of file