canvas-display-p3-drawImage.https.html

<!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 images with different 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, ...svgImageTests})) {
    for (let contextColorSpace of ["srgb", "display-p3"]) {
        for (let imageDataColorSpace of ["srgb", "display-p3"]) {
            for (let scaleImage of [false, true]) {
                async_test(function(t) {
                    let image = new Image();
                    image.onload = t.step_func_done(function() {

                        let canvas = document.createElement("canvas");
                        canvas.width = 2;
                        canvas.height = 2;

                        let ctx = canvas.getContext("2d", { colorSpace: contextColorSpace });
                        if (scaleImage)
                            ctx.drawImage(image, 0, 0, 10, 10);
                        else
                            ctx.drawImage(image, 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}.`);

                        t.done();

                    });
                    image.src = `resources/${filename}`;
                }, `${filename}, Context ${contextColorSpace}, ImageData ${imageDataColorSpace}, scaleImage=${scaleImage}`);
            }
        }
    }
}
</script>
chromium/third_party/blink/web_tests/external/wpt/html/canvas/element/manual/wide-gamut-canvas/canvas-display-p3-drawImage.https.html
