92 lines
2.6 KiB
JavaScript
92 lines
2.6 KiB
JavaScript
const basePath = process.cwd();
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const fs = require("fs");
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const { createCanvas, loadImage } = require("canvas");
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const buildDir = `${basePath}/build`;
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const imageDir = `${buildDir}/images`;
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const { format, preview_gif } = require(`${basePath}/src/config.js`);
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const canvas = createCanvas(format.width, format.height);
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const ctx = canvas.getContext("2d");
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const HashlipsGiffer = require(`${basePath}/modules/HashlipsGiffer.js`);
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let hashlipsGiffer = null;
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const loadImg = async (_img) => {
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return new Promise(async (resolve) => {
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const loadedImage = await loadImage(`${_img}`);
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resolve({ loadedImage: loadedImage });
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});
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};
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// read image paths
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const imageList = [];
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const rawdata = fs.readdirSync(imageDir).forEach((file) => {
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imageList.push(loadImg(`${imageDir}/${file}`));
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});
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const saveProjectPreviewGIF = async (_data) => {
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// Extract from preview config
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const { numberOfImages, order, repeat, quality, delay, imageName } =
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preview_gif;
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// Extract from format config
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const { width, height } = format;
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// Prepare canvas
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const previewCanvasWidth = width;
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const previewCanvasHeight = height;
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if (_data.length < numberOfImages) {
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console.log(
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`You do not have enough images to create a gif with ${numberOfImages} images.`
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);
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} else {
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// Shout from the mountain tops
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console.log(
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`Preparing a ${previewCanvasWidth}x${previewCanvasHeight} project preview with ${_data.length} images.`
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);
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const previewPath = `${buildDir}/${imageName}`;
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ctx.clearRect(0, 0, width, height);
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hashlipsGiffer = new HashlipsGiffer(
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canvas,
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ctx,
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`${previewPath}`,
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repeat,
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quality,
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delay
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);
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hashlipsGiffer.start();
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await Promise.all(_data).then((renderObjectArray) => {
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// Determin the order of the Images before creating the gif
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if (order == "ASC") {
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// Do nothing
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} else if (order == "DESC") {
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renderObjectArray.reverse();
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} else if (order == "MIXED") {
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renderObjectArray = renderObjectArray.sort(() => Math.random() - 0.5);
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}
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// Reduce the size of the array of Images to the desired amount
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if (parseInt(numberOfImages) > 0) {
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renderObjectArray = renderObjectArray.slice(0, numberOfImages);
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}
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renderObjectArray.forEach((renderObject, index) => {
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ctx.globalAlpha = 1;
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ctx.globalCompositeOperation = "source-over";
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ctx.drawImage(
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renderObject.loadedImage,
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0,
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0,
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previewCanvasWidth,
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previewCanvasHeight
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);
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hashlipsGiffer.add();
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});
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});
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hashlipsGiffer.stop();
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}
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};
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saveProjectPreviewGIF(imageList);
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