From 086c044dc34dfc0f74fbe41f4ecb402b2cd34884 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:13:33 +0200
Subject: Merging upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 ...omponentTransfer.linear.tentative-expected.html | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.linear.tentative-expected.html

(limited to 'testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.linear.tentative-expected.html')
diff --git a/testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.linear.tentative-expected.html b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.linear.tentative-expected.html
new file mode 100644
index 0000000000..c4ad790d56
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.canvasFilterObject.componentTransfer.linear.tentative-expected.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.filter.canvasFilterObject.componentTransfer.linear.tentative</title>
+<h1>2d.filter.canvasFilterObject.componentTransfer.linear.tentative</h1>
+<p class="desc">Test pixels on CanvasFilter() componentTransfer with linear type</p>
+<canvas id="canvas" width="100" height="100">
+  <p class="fallback">FAIL (fallback content)</p>
+</canvas>
+<script>
+  const canvas = document.getElementById("canvas");
+  const ctx = canvas.getContext('2d');
+
+  // From https://www.w3.org/TR/SVG11/filters.html#feComponentTransferElement
+  function getColor(inputColor, slopes, intercepts) {
+      return [
+          Math.max(0, Math.min(1,
+            inputColor[0]/255 * slopes[0] + intercepts[0])) * 255,
+          Math.max(0, Math.min(1,
+            inputColor[1]/255 * slopes[1] + intercepts[1])) * 255,
+          Math.max(0, Math.min(1,
+            inputColor[2]/255 * slopes[2] + intercepts[2])) * 255,
+      ];
+  }
+
+  const slopes = [0.5, 1.2, -0.2];
+  const intercepts = [0.25, 0, 0.5];
+
+  const inputColors = [
+      [255, 255, 255],
+      [0, 0, 0],
+      [127, 0, 34],
+      [252, 186, 3],
+      [50, 68, 87],
+  ];
+
+  for (let i = 0 ; i < inputColors.length ; ++i) {
+      const color = inputColors[i];
+      let outputColor = getColor(color, slopes, intercepts);
+      ctx.fillStyle = `rgb(${outputColor[0]}, ${outputColor[1]},
+        ${outputColor[2]})`;
+      ctx.fillRect(i * 10, i * 10, 10, 10);
+  }
+</script>
-- 
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