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+++ b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.table.tentative.html
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+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.filter.canvasFilterObject.componentTransfer.table.tentative</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
+<body class="show_output">
+
+<h1>2d.filter.canvasFilterObject.componentTransfer.table.tentative</h1>
+<p class="desc">Test pixels on CanvasFilter() componentTransfer with table type</p>
+
+
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+
+<ul id="d"></ul>
+<script>
+var t = async_test("Test pixels on CanvasFilter() componentTransfer with table type");
+_addTest(function(canvas, ctx) {
+
+ // From https://www.w3.org/TR/SVG11/filters.html#feComponentTransferElement
+ function getTransformedValue(C, V) {
+ // Get the right interval
+ const n = V.length - 1;
+ const k = C == 1 ? n - 1 : Math.floor(C * n);
+ return V[k] + (C - k/n) * n * (V[k + 1] - V[k]);
+ }
+
+ function getColor(inputColor, tableValues) {
+ const result = [0, 0, 0];
+ for (const i in inputColor) {
+ const C = inputColor[i]/255;
+ const Cprime = getTransformedValue(C, tableValues[i]);
+ result[i] = Math.max(0, Math.min(1, Cprime)) * 255;
+ }
+ return result;
+ }
+
+ tableValuesR = [0, 0, 1, 1];
+ tableValuesG = [2, 0, 0.5, 3];
+ tableValuesB = [1, -1, 5, 0];
+ ctx.filter = new CanvasFilter({name: 'componentTransfer',
+ funcR: {type: 'table', tableValues: tableValuesR},
+ funcG: {type: 'table', tableValues: tableValuesG},
+ funcB: {type: 'table', tableValues: tableValuesB},
+ });
+
+ const inputColors = [
+ [255, 255, 255],
+ [0, 0, 0],
+ [127, 0, 34],
+ [252, 186, 3],
+ [50, 68, 87],
+ ];
+
+ for (const color of inputColors) {
+ let outputColor = getColor(color, [tableValuesR, tableValuesG, tableValuesB]);
+ ctx.fillStyle = `rgb(${color[0]}, ${color[1]}, ${color[2]})`;
+ ctx.fillRect(0, 0, 10, 10);
+ _assertPixelApprox(canvas, 5, 5, outputColor[0],outputColor[1],outputColor[2],255, 2);
+ }
+
+});
+</script>
+