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How to use makeRGBACanvas method in wpt

Best JavaScript code snippet using wpt

videoFrame-alpha.any.js

Source:videoFrame-alpha.any.js

1// META: global=window,dedicatedworker2function makeRGBACanvas() {3  let canvas = new OffscreenCanvas(32, 32, {alpha: true});4  let ctx = canvas.getContext('2d');5  // Opaque red quadrant.6  ctx.fillStyle = 'rgba(255, 0, 0, 255)';7  ctx.fillRect(0, 0, 16, 16);8  // Opaque blue quadrant.9  ctx.fillStyle = 'rgba(0, 255, 0, 255)';10  ctx.fillRect(16, 0, 16, 16);11  // Opaque green quadrant.12  ctx.fillStyle = 'rgba(0, 0, 255, 255)';13  ctx.fillRect(0, 16, 16, 16);14  // Remaining quadrant should be transparent black.15  return canvas;16}17function getPixel(ctx, x, y) {18  let data = ctx.getImageData(x, y, 1, 1).data;19  return data[0] * 2 ** 24 + data[1] * 2 ** 16 + data[2] * 2 ** 8 + data[3];20}21function verifyPicture(picture) {22  let canvas = new OffscreenCanvas(32, 32, {alpha: true});23  let ctx = canvas.getContext('2d');24  ctx.drawImage(picture, 0, 0);25  assert_equals(getPixel(ctx,  8,  8), 0xFF0000FF);26  assert_equals(getPixel(ctx, 24,  8), 0x00FF00FF);27  assert_equals(getPixel(ctx,  8, 24), 0x0000FFFF);28  assert_equals(getPixel(ctx, 24, 24), 0x00000000);29}30promise_test(async () => {31  let src = makeRGBACanvas();32  let frame = new VideoFrame(src, {alpha: 'keep'});33  verifyPicture(frame);34  verifyPicture(await createImageBitmap(frame));35}, 'OffscreenCanvas source preserves alpha');36promise_test(async () => {37  let src = makeRGBACanvas().transferToImageBitmap();38  let frame = new VideoFrame(src, {alpha: 'keep'});39  verifyPicture(frame);40  verifyPicture(await createImageBitmap(frame));...

Using AI Code Generation

1var wptools = require('wptools');2var canvas = wptools.makeRGBACanvas(100, 100);3var ctx = canvas.getContext('2d');4ctx.fillStyle = 'rgb(200, 0, 0)';5ctx.fillRect(10, 10, 55, 50);6ctx.fillStyle = 'rgba(0, 0, 200, 0.5)';7ctx.fillRect(30, 30, 55, 50);8var fs = require('fs');9var out = fs.createWriteStream(__dirname + '/test.png');10var stream = canvas.createPNGStream();11stream.pipe(out);12var wptools = require('wptools');13var canvas = wptools.makeRGBACanvas(100, 100);14var ctx = canvas.getContext('2d');15ctx.fillStyle = 'rgb(200, 0, 0)';16ctx.fillRect(10, 10, 55, 50);17ctx.fillStyle = 'rgba(0, 0, 200, 0.5)';18ctx.fillRect(30, 30, 55, 50);19var fs = require('fs');20var out = fs.createWriteStream(__dirname + '/test2.png');21var stream = canvas.createPNGStream();22stream.pipe(out);23var wptools = require('wptools');24var canvas = wptools.makeRGBACanvas(100, 100);25var ctx = canvas.getContext('2d');26ctx.fillStyle = 'rgb(200, 0, 0)';27ctx.fillRect(10, 10, 55, 50);28ctx.fillStyle = 'rgba(0, 0, 200, 0.5)';29ctx.fillRect(30, 30, 55, 50);30var fs = require('fs');31var out = fs.createWriteStream(__dirname + '/test3.png');32var stream = canvas.createPNGStream();33stream.pipe(out);34var wptools = require('wptools');35var canvas = wptools.makeRGBACanvas(100, 100);36var ctx = canvas.getContext('2d');37ctx.fillStyle = 'rgb(

Using AI Code Generation

1var wptools = require('wptools');2var canvas = wptools.makeRGBACanvas(100, 100);3var ctx = canvas.getContext('2d');4ctx.fillStyle = 'rgba(0, 0, 255, 0.5)';5ctx.fillRect(10, 10, 80, 80);6ctx.fillStyle = 'rgba(255, 0, 0, 0.5)';7ctx.fillRect(30, 30, 40, 40);8var fs = require('fs');9var out = fs.createWriteStream(__dirname + '/test.png');10var stream = canvas.pngStream();11stream.on('data', function(chunk){12    out.write(chunk);13});14stream.on('end', function(){15    console.log('saved png');16});17var wptools = require('wptools');18var canvas = wptools.makeRGBACanvas(100, 100);19var ctx = canvas.getContext('2d');20ctx.fillStyle = 'rgba(0, 0, 255, 0.5)';21ctx.fillRect(10, 10, 80, 80);22ctx.fillStyle = 'rgba(255, 0, 0, 0.5)';23ctx.fillRect(30, 30, 40, 40);24var img = new Image();25img.src = canvas.toDataURL();26document.body.appendChild(img);27var wptools = require('wptools');28var canvas = wptools.makeRGBACanvas(100, 100);29var ctx = canvas.getContext('2d');30ctx.fillStyle = 'rgba(0, 0, 255, 0.5)';31ctx.fillRect(10, 10, 80, 80);32ctx.fillStyle = 'rgba(255, 0, 0, 0.5)';33ctx.fillRect(30, 30, 40, 40);34var img = new Image();35img.src = canvas.toDataURL();36document.body.appendChild(img);37var wptools = require('wptools');38var canvas = wptools.makeRGBACanvas(100, 100);39var ctx = canvas.getContext('2d');

Using AI Code Generation

1var wpt = require('wpt');2var canvas = wpt.makeRGBACanvas(500, 500);3var context = canvas.getContext('2d');4context.fillStyle = "rgb(200,0,0)";5context.fillRect(10, 10, 55, 50);6context.fillStyle = "rgba(0, 0, 200, 0.5)";7context.fillRect(30, 30, 55, 50);8wpt.writeCanvasToPNG(canvas, "test.png");9var wpt = require('wpt');10var canvas = wpt.makeRGBACanvas(500, 500);11var context = canvas.getContext('2d');12context.fillStyle = "rgb(200,0,0)";13context.fillRect(10, 10, 55, 50);14context.fillStyle = "rgba(0, 0, 200, 0.5)";15context.fillRect(30, 30, 55, 50);16wpt.writeCanvasToPNG(canvas, "test.png");17var wpt = require('wpt');18var canvas = wpt.makeRGBACanvas(500, 500);19var context = canvas.getContext('2d');20context.fillStyle = "rgb(200,0,0)";21context.fillRect(10, 10, 55, 50);22context.fillStyle = "rgba(0, 0, 200, 0.5)";23context.fillRect(30, 30, 55, 50);24wpt.writeCanvasToPNG(canvas, "test.png");25var wpt = require('wpt');26var canvas = wpt.makeRGBACanvas(500, 500);27var context = canvas.getContext('2d');28context.fillStyle = "rgb(200,0,0)";29context.fillRect(10, 10, 55, 50);30context.fillStyle = "rgba(0, 0, 200, 0.5)";31context.fillRect(30, 30, 55, 50);32wpt.writeCanvasToPNG(canvas, "test.png");

Using AI Code Generation

1var wptexture = require("wptexture");2var canvas = wptexture.makeRGBACanvas(400, 400);3var ctx = canvas.getContext("2d");4ctx.fillStyle = "red";5ctx.fillRect(0, 0, 400, 400);6ctx.fillStyle = "green";7ctx.fillRect(0, 0, 200, 200);8ctx.fillStyle = "blue";9ctx.fillRect(200, 200, 200, 200);10ctx.fillStyle = "yellow";11ctx.fillRect(200, 0, 200, 200);12ctx.fillStyle = "purple";13ctx.fillRect(0, 200, 200, 200);14var wptexture = require("wptexture");15var canvas = wptexture.makeRGBACanvas(400, 400);16var ctx = canvas.getContext("2d");17ctx.fillStyle = "red";18ctx.fillRect(0, 0, 400, 400);19ctx.fillStyle = "green";20ctx.fillRect(0, 0, 200, 200);21ctx.fillStyle = "blue";22ctx.fillRect(200, 200, 200, 200);23ctx.fillStyle = "yellow";24ctx.fillRect(200, 0, 200, 200);25ctx.fillStyle = "purple";26ctx.fillRect(0, 200, 200, 200);27var wptexture = require("wptexture");28var canvas = wptexture.makeRGBACanvas(400, 400);29var ctx = canvas.getContext("2d");30ctx.fillStyle = "red";31ctx.fillRect(0, 0, 400, 400);32ctx.fillStyle = "green";33ctx.fillRect(0, 0, 200, 200);34ctx.fillStyle = "blue";35ctx.fillRect(200, 200, 200, 200);36ctx.fillStyle = "yellow";37ctx.fillRect(200, 0, 200, 200);38ctx.fillStyle = "purple";39ctx.fillRect(0, 200, 200, 200);40var wptexture = require("wptexture");41var canvas = wptexture.makeRGBACanvas(400, 400);

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var path = require('path');4var canvas = wptools.makeRGBACanvas(100,100);5var wptools = require('wptools');6var fs = require('fs');7var path = require('path');8var canvas = wptools.makeRGBACanvas(100,100);9var wptools = require('wptools');10var fs = require('fs');11var path = require('path');12var canvas = wptools.makeRGBACanvas(100,100);13var wptools = require('wptools');14var fs = require('fs');15var path = require('path');16var canvas = wptools.makeRGBACanvas(100,100);17var wptools = require('wptools');18var fs = require('fs');19var path = require('path');20var canvas = wptools.makeRGBACanvas(100,100);21var wptools = require('wptools');22var fs = require('fs');23var path = require('path');24var canvas = wptools.makeRGBACanvas(100,100);25var wptools = require('wptools');26var fs = require('fs');27var path = require('path');28var canvas = wptools.makeRGBACanvas(100,100);29var wptools = require('wptools');30var fs = require('fs');31var path = require('path');32var canvas = wptools.makeRGBACanvas(100,100);33var wptools = require('wptools');34var fs = require('fs

Using AI Code Generation

1var fs = require('fs');2var wptfs = require('wpt-fs');3var canvas = wptfs.makeRGBACanvas(400, 400, 0, 0, 0, 255);4var out = fs.createWriteStream('out.png');5var stream = canvas.createPNGStream();6stream.on('data', function(chunk){7    out.write(chunk);8});9stream.on('end', function(){10    console.log('saved png');11});12{13  "dependencies": {14  }15}16module.exports = require('./lib/wpt-fs');17var Canvas = require('canvas');18var Image = Canvas.Image;19var PNG = Canvas.PNG;20module.exports = {21  makeRGBACanvas: function(width, height, r, g, b, a) {22    var canvas = new Canvas(width, height);23    var ctx = canvas.getContext('2d');24    ctx.fillStyle = 'rgba(' + r + ', ' + g + ', ' + b + ', ' + a + ')';25    ctx.fillRect(0, 0, width, height);26    return canvas;27  },28  makeCanvasFromImage: function(imagePath, callback) {29    var canvas = new Canvas();30    var ctx = canvas.getContext('2d');31    var img = new Image();32    img.onload = function() {33      canvas.width = img.width;34      canvas.height = img.height;35      ctx.drawImage(img, 0, 0);36      callback(canvas);37    };38    img.src = imagePath;39  },40  makeCanvasFromPNG: function(pngPath, callback) {41    var canvas = new Canvas();42    var ctx = canvas.getContext('2d');43    var img = new PNG();44    img.onload = function() {45      canvas.width = img.width;46      canvas.height = img.height;47      ctx.drawImage(img, 0, 0);48      callback(canvas);49    };50    img.src = pngPath;51  }52};

Using AI Code Generation

1var wptdriver = require('wptdriver');2var canvas = wptdriver.makeRGBACanvas(640, 480);3document.body.appendChild(canvas);4Chrome version: 87.0.4280.88 (Official Build) (64-bit)5Chrome version: 87.0.4280.88 (Official Build) (64-bit)6Chrome version: 87.0.4280.88 (Official Build) (64-bit)

Using AI Code Generation

1var wptools = require('wptools');2var image = wptools.makeRGBACanvas(100, 100);3var fs = require('fs');4var out = fs.createWriteStream(__dirname + '/canvas.png');5var stream = image.createPNGStream();6stream.on('data', function(chunk){7  out.write(chunk);8});9stream.on('end', function(){10  console.log('saved png');11});12I am not sure how to fix this. I am not sure how to import the node-canvas module. I am not

Using AI Code Generation

1makeRGBAColor();2function makeCanvasAndSaveImageFile() {3    var canvasWidth = 300;4    var canvasHeight = 200;5    var backgroundColor = "rgba(255, 255, 0, 1)";6    var textString = "Hello World";7    var fontColor = "rgba(0, 0, 255, 1)";8    var fontSize = 48;9    var fontFamily = "Times New Roman";10    var fontStyle = "normal";11    var fontWeight = "normal";12    var textAlign = "center";13    var textBaseline = "middle";14    var xPosition = canvasWidth / 2;15    var yPosition = canvasHeight / 2;16    var imageFileName = "test.png";17    makeRGBACanvas(18    );19}20makeCanvasAndSaveImageFile();

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