From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:47:29 +0200
Subject: Adding upstream version 115.8.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../context-creation-offscreen-with-alpha.html     | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 testing/web-platform/tests/imagebitmap-renderingcontext/context-creation-offscreen-with-alpha.html

(limited to 'testing/web-platform/tests/imagebitmap-renderingcontext/context-creation-offscreen-with-alpha.html')
diff --git a/testing/web-platform/tests/imagebitmap-renderingcontext/context-creation-offscreen-with-alpha.html b/testing/web-platform/tests/imagebitmap-renderingcontext/context-creation-offscreen-with-alpha.html
new file mode 100644
index 0000000000..b565def964
--- /dev/null
+++ b/testing/web-platform/tests/imagebitmap-renderingcontext/context-creation-offscreen-with-alpha.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Canvas's ImageBitmapRenderingContext test</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#the-imagebitmap-rendering-context">
+<script>
+var width = 10;
+var height = 10;
+
+function testImageBitmap(image, opts, expectedR, expectedG, expectedB, expectedA)
+{
+    var dstCanvas = new OffscreenCanvas(width,height);
+    var dstCtx = dstCanvas.getContext('bitmaprenderer', opts);
+    dstCtx.transferFromImageBitmap(image);
+
+    var myCanvas = document.createElement('canvas');
+    myCanvas.width = width;
+    myCanvas.height = height;
+    var myCtx = myCanvas.getContext('2d');
+    myCtx.drawImage(dstCanvas, 0, 0);
+    var color = myCtx.getImageData(5, 5, 1, 1).data;
+    assert_array_approx_equals(color, [expectedR, expectedG, expectedB, expectedA],1);
+}
+
+promise_test(function() {
+    var srcCanvas = document.createElement('canvas');
+    srcCanvas.width = width;
+    srcCanvas.height = height;
+    var ctx = srcCanvas.getContext('2d');
+    ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
+    ctx.fillRect(0, 0, width, height);
+    return createImageBitmap(srcCanvas).then(function(image) {
+        testImageBitmap(image, {alpha: false}, 0, 255, 0, 128);
+    });
+}, "Test that an ImageBitmapRenderingContext with alpha disabled makes the canvas opaque");
+
+promise_test(function() {
+    var srcCanvas = document.createElement('canvas');
+    srcCanvas.width = width;
+    srcCanvas.height = height;
+    var ctx = srcCanvas.getContext('2d');
+    ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
+    ctx.fillRect(0, 0, width, height);
+    return createImageBitmap(srcCanvas).then(function(image) {
+        testImageBitmap(image, {alpha: true}, 0, 255, 0, 128);
+    });
+}, "Test that an ImageBitmapRenderingContext with alpha enabled preserves the alpha");
+
+promise_test(function() {
+    var srcCanvas = document.createElement('canvas');
+    srcCanvas.width = width;
+    srcCanvas.height = height;
+    var ctx = srcCanvas.getContext('2d');
+    ctx.fillStyle = 'rgba(0, 255, 0, 0.5)';
+    ctx.fillRect(0, 0, width, height);
+    return createImageBitmap(srcCanvas).then(function(image) {
+        testImageBitmap(image, {}, 0, 255, 0, 128);
+    });
+}, "Test that the 'alpha' context creation attribute is true by default");
+
+</script>
-- 
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