054af09032
This updates ESLint and our shared eslint-config-openlayers to use Prettier. Most formatting changes were automatically applied with this:
npm run lint -- --fix
A few manual changes were required:
* In `examples/offscreen-canvas.js`, the `//eslint-disable-line` comment needed to be moved to the appropriate line to disable the error about the `'worker-loader!./offscreen-canvas.worker.js'` import.
* In `examples/webpack/exapmle-builder.js`, spaces could not be added after a couple `function`s for some reason. While editing this, I reworked `ExampleBuilder` to be a class.
* In `src/ol/format/WMSGetFeatureInfo.js`, the `// @ts-ignore` comment needed to be moved down one line so it applied to the `parsersNS` argument.
63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
/**
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* A worker that does cpu-heavy tasks related to webgl rendering.
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* @module ol/worker/webgl
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*/
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import {
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WebGLWorkerMessageType,
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writePointFeatureToBuffers,
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} from '../renderer/webgl/Layer.js';
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import {assign} from '../obj.js';
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/** @type {any} */
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const worker = self;
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worker.onmessage = (event) => {
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const received = event.data;
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if (received.type === WebGLWorkerMessageType.GENERATE_BUFFERS) {
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// This is specific to point features (x, y, index)
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const baseVertexAttrsCount = 3;
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const baseInstructionsCount = 2;
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const customAttrsCount = received.customAttributesCount;
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const instructionsCount = baseInstructionsCount + customAttrsCount;
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const renderInstructions = new Float32Array(received.renderInstructions);
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const elementsCount = renderInstructions.length / instructionsCount;
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const indicesCount = elementsCount * 6;
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const verticesCount =
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elementsCount * 4 * (customAttrsCount + baseVertexAttrsCount);
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const indexBuffer = new Uint32Array(indicesCount);
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const vertexBuffer = new Float32Array(verticesCount);
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let bufferPositions = null;
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for (let i = 0; i < renderInstructions.length; i += instructionsCount) {
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bufferPositions = writePointFeatureToBuffers(
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renderInstructions,
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i,
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vertexBuffer,
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indexBuffer,
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customAttrsCount,
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bufferPositions
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);
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}
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/** @type {import('../renderer/webgl/Layer').WebGLWorkerGenerateBuffersMessage} */
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const message = assign(
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{
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vertexBuffer: vertexBuffer.buffer,
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indexBuffer: indexBuffer.buffer,
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renderInstructions: renderInstructions.buffer,
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},
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received
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);
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worker.postMessage(message, [
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vertexBuffer.buffer,
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indexBuffer.buffer,
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renderInstructions.buffer,
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]);
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}
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};
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export let create;
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