120 lines
No EOL
3.4 KiB
JavaScript
120 lines
No EOL
3.4 KiB
JavaScript
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);
|
|
}
|
|
}); |