76 lines
No EOL
2.2 KiB
JavaScript
76 lines
No EOL
2.2 KiB
JavaScript
import GObject from 'gi://GObject';
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import * as utils from '../conveniences/utils.js';
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const Shell = await utils.import_in_shell_only('gi://Shell');
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const Clutter = await utils.import_in_shell_only('gi://Clutter');
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const SHADER_FILENAME = 'noise.glsl';
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const DEFAULT_PARAMS = {
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noise: 0.4, lightness: 0.4
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};
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export const NoiseEffect = utils.IS_IN_PREFERENCES ?
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{ default_params: DEFAULT_PARAMS } :
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new GObject.registerClass({
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GTypeName: "NoiseEffect",
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Properties: {
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'noise': GObject.ParamSpec.double(
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`noise`,
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`Noise`,
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`Amount of noise integrated with the image`,
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GObject.ParamFlags.READWRITE,
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0.0, 1.0,
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0.4,
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),
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'lightness': GObject.ParamSpec.double(
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`lightness`,
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`Lightness`,
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`Lightness of the grey used for the noise`,
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GObject.ParamFlags.READWRITE,
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0.0, 2.0,
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0.4,
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),
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}
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}, class NoiseEffect extends Clutter.ShaderEffect {
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constructor(params) {
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super(params);
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utils.setup_params(this, params);
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// set shader source
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this._source = utils.get_shader_source(Shell, SHADER_FILENAME, import.meta.url);
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if (this._source)
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this.set_shader_source(this._source);
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}
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static get default_params() {
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return DEFAULT_PARAMS;
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}
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get noise() {
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return this._noise;
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}
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set noise(value) {
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if (this._noise !== value) {
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this._noise = value;
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this.set_uniform_value('noise', parseFloat(this._noise - 1e-6));
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this.set_enabled(this.noise > 0. && this.lightness != 1);
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}
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}
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get lightness() {
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return this._lightness;
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}
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set lightness(value) {
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if (this._lightness !== value) {
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this._lightness = value;
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this.set_uniform_value('lightness', parseFloat(this._lightness - 1e-6));
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this.set_enabled(this.noise > 0. && this.lightness != 1);
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}
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}
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}); |