@lightningtv/renderer
Version:
Lightning 3 Renderer
60 lines • 2.3 kB
JavaScript
/*
* Copyright 2023 Comcast Cable Communications Management, LLC
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
import { CoreShaderNode } from '../CoreShaderNode.js';
export class CanvasShaderNode extends CoreShaderNode {
updater = undefined;
valueKey = '';
computed = {};
applySNR;
render;
constructor(shaderKey, config, stage, props) {
super(shaderKey, config, stage, props);
this.applySNR = config.saveAndRestore || false;
this.render = config.render;
if (config.update !== undefined) {
this.updater = config.update;
if (this.props === undefined) {
this.updater(this.node, this.props);
return;
}
this.update = () => {
const prevKey = this.valueKey;
this.valueKey = '';
for (const key in this.resolvedProps) {
this.valueKey += `${key}:${this.resolvedProps[key]};`;
}
if (prevKey === this.valueKey) {
return;
}
if (prevKey.length > 0) {
this.stage.shManager.mutateShaderValueUsage(prevKey, -1);
}
const computed = this.stage.shManager.getShaderValues(this.valueKey);
if (computed !== undefined) {
this.computed = computed;
}
this.computed = {};
this.updater(this.node);
this.stage.shManager.setShaderValues(this.valueKey, this.computed);
};
}
}
toColorString(rgba) {
return this.stage.renderer.getParsedColor(rgba, true);
}
}
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