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import GObject from 'gi://GObject';
import * as utils from '../conveniences/utils.js';
import * as uniforms from '../conveniences/shader_uniforms.js';
const Shell = await utils.import_in_shell_only('gi://Shell');
const Clutter = await utils.import_in_shell_only('gi://Clutter');
const SHADER_FILENAME = 'luminosity.glsl';
const SHADER_SOURCE = utils.get_shader_source(Shell, SHADER_FILENAME, import.meta.url);
const DEFAULT_PARAMS = {
brightness_shift: 0., brightness_multiplicator: 1., contrast: 1., contrast_center: 0.5, saturation_multiplicator: 1., opacity_factor: 1.
};
const LUMINOSITY_EFFECT_META = {
GTypeName: "LuminosityEffect",
Properties: {
'brightness_shift': GObject.ParamSpec.double(
`brightness_shift`,
`Brightness shift`,
`Brightness shift value in shader`,
GObject.ParamFlags.READWRITE,
-1.0, 1.0,
0.0,
),
'brightness_multiplicator': GObject.ParamSpec.double(
`brightness_multiplicator`,
`Brightness multiplicator`,
`Brightness multiplicator value in shader`,
GObject.ParamFlags.READWRITE,
0.0, 2.0,
1.0,
),
'contrast': GObject.ParamSpec.double(
`contrast`,
`Contrast`,
`Contrast value in shader`,
GObject.ParamFlags.READWRITE,
0.0, 2.0,
1.0,
),
'contrast_center': GObject.ParamSpec.double(
`contrast_center`,
`Contrast center`,
`Contrast center value in shader`,
GObject.ParamFlags.READWRITE,
0.0, 1.0,
0.5,
),
'saturation_multiplicator': GObject.ParamSpec.double(
`saturation_multiplicator`,
`Saturation multiplicator`,
`Saturation multiplicator value in shader`,
GObject.ParamFlags.READWRITE,
0.0, 2.0,
1.0,
),
'opacity_factor': GObject.ParamSpec.double(
`opacity_factor`,
`Opacity factor`,
`Opacity factor`,
GObject.ParamFlags.READWRITE,
0.0, 1.0,
1.0,
),
}
};
const LuminosityEffectClass = utils.IS_IN_PREFERENCES ? null : class LuminosityEffect extends Clutter.ShaderEffect {
constructor(params) {
super();
utils.initialize_shader_effect(this, SHADER_SOURCE);
utils.setup_params(this, params);
}
static get default_params() {
return DEFAULT_PARAMS;
}
get brightness_shift() {
return this._brightness;
}
set brightness_shift(value) {
if (this._brightness_shift !== value) {
this._brightness_shift = value;
uniforms.set_uniform(this, 'brightness_shift', parseFloat(this._brightness_shift - 1e-6));
}
}
get brightness_multiplicator() {
return this._brightness_multiplicator;
}
set brightness_multiplicator(value) {
if (this._brightness_multiplicator !== value) {
this._brightness_multiplicator = value;
let brightness_mul = 600.;
if (value < 1.995)
brightness_mul = 3. * (1. / (1. - (value / 2.) ** 2) - 1.);
uniforms.set_uniform(this, 'brightness_multiplicator', parseFloat(brightness_mul - 1e-6));
}
}
get contrast() {
return this._contrast;
}
set contrast(value) {
if (this._contrast !== value) {
this._contrast = value;
uniforms.set_uniform(this, 'contrast', parseFloat(this._contrast - 1e-6));
}
}
get contrast_center() {
return this._contrast_center;
}
set contrast_center(value) {
if (this._contrast_center !== value) {
this._contrast_center = value;
uniforms.set_uniform(this, 'contrast_center', parseFloat(this._contrast_center - 1e-6));
}
}
get saturation_multiplicator() {
return this._saturation_multiplicator;
}
set saturation_multiplicator(value) {
if (this._saturation_multiplicator !== value) {
this._saturation_multiplicator = value;
let saturation_mul = 600.;
if (value < 1.995)
saturation_mul = 3. * (1. / (1. - (value / 2.) ** 2) - 1.);
uniforms.set_uniform(this, 'saturation_multiplicator', parseFloat(saturation_mul - 1e-6));
}
}
get opacity_factor() {
return this._opacity_factor;
}
set opacity_factor(value) {
if (this._opacity_factor !== value) {
this._opacity_factor = value;
uniforms.set_uniform(this, 'opacity_factor', parseFloat(this._opacity_factor));
}
}
vfunc_paint_target(paint_node, paint_context) {
uniforms.upload_uniforms(this);
super.vfunc_paint_target(paint_node, paint_context);
}
};
export const LuminosityEffect = utils.IS_IN_PREFERENCES
? { default_params: DEFAULT_PARAMS }
: utils.register_shader_effect(LUMINOSITY_EFFECT_META, LuminosityEffectClass, SHADER_SOURCE);
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