55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
postMessage({ hasInstalled: true });
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let offscreenCanvas;
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let webgl;
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this.onmessage = (event) => {
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const { data } = event;
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const { cmd } = data;
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if (cmd === 'init') {
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const { canvas, options, scripts } = data;
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self.importScripts(...scripts);
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const WebGL = self.webgl.default;
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offscreenCanvas = canvas;
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webgl = new WebGL(canvas, options);
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return;
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}
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if (cmd === 'render') {
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const { frame, type, width, height, yLength, uvLength } = data;
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offscreenCanvas.width = width;
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offscreenCanvas.height = height;
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let error;
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if (type === 'webcodecs') {
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if (webgl) {
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webgl.setFrameType('VIDEO_FRAME');
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error = webgl.renderFrame(frame, width, height);
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} else {
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frame.close();
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}
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} else {
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if (webgl) {
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webgl.setFrameType('YUV_FRAME');
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error = webgl.renderFrame(frame, width, height, yLength, uvLength);
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}
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}
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if (error) {
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postMessage({renderError: error});
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webgl && webgl.dispose();
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this.close();
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}
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} else if (cmd === 'display') {
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const { options } = data;
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webgl && webgl.setDisplayInfo(options);
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} else if (cmd === 'close') {
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webgl && webgl.dispose();
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this.close();
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}
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};
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