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Test Info: Warnings
- This test has a WPT meta file that expects 112 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /html/canvas/element/manual/wide-gamut-canvas/canvas-display-p3-drawImage-ImageBitmap-Blob.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="canvas-display-p3.js"></script>
<script>
// Test that drawing ImageBitmaps with different image Blob source bit depths
// and color profiles into sRGB and Display P3 canvases works, by reading pixels
// with getImageData() as sRGB and Display P3 values.
for (let [filename, expectedPixels] of Object.entries(imageTests)) {
for (let contextColorSpace of ["srgb", "display-p3"]) {
for (let imageDataColorSpace of ["srgb", "display-p3"]) {
for (let cropSource of [false, true]) {
async_test(function(t) {
fetch(`resources/${filename}`)
.then(t.step_func(response => response.blob()))
.then(t.step_func(blob => (cropSource ? createImageBitmap(blob, 1, 1, 1, 1) : createImageBitmap(blob))))
.then(t.step_func_done(function(imageBitmap) {
let canvas = document.createElement("canvas");
canvas.width = 2;
canvas.height = 2;
let ctx = canvas.getContext("2d", { colorSpace: contextColorSpace });
ctx.drawImage(imageBitmap, 0, 0);
let imageData = ctx.getImageData(0, 0, 1, 1, { colorSpace: imageDataColorSpace });
let expected = expectedPixels[`${contextColorSpace} ${imageDataColorSpace}`];
assert_true(pixelsApproximatelyEqual(imageData.data, expected), `Actual pixel value ${[...imageData.data]} is approximately equal to ${expected}.`);
}));
}, `${filename}, Context ${contextColorSpace}, ImageData ${imageDataColorSpace}, cropSource=${cropSource}`);
}
}
}
}
</script>