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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js')
-rw-r--r-- | testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js new file mode 100644 index 0000000000..d59bc699df --- /dev/null +++ b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.canvasFilterObject.componentTransfer.gamma.tentative.worker.js @@ -0,0 +1,53 @@ +// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. +// OffscreenCanvas test in a worker:2d.filter.canvasFilterObject.componentTransfer.gamma.tentative +// Description:Test pixels on CanvasFilter() componentTransfer with gamma type +// Note: + +importScripts("/resources/testharness.js"); +importScripts("/html/canvas/resources/canvas-tests.js"); + +var t = async_test("Test pixels on CanvasFilter() componentTransfer with gamma type"); +var t_pass = t.done.bind(t); +var t_fail = t.step_func(function(reason) { + throw reason; +}); +t.step(function() { + + var canvas = new OffscreenCanvas(100, 50); + var ctx = canvas.getContext('2d'); + + // From https://www.w3.org/TR/SVG11/filters.html#feComponentTransferElement + function getColor(inputColor, amplitude, exponent, offset) { + return [ + Math.max(0, Math.min(1, Math.pow(inputColor[0]/255, exponent[0]) * amplitude[0] + offset[0])) * 255, + Math.max(0, Math.min(1, Math.pow(inputColor[1]/255, exponent[1]) * amplitude[1] + offset[1])) * 255, + Math.max(0, Math.min(1, Math.pow(inputColor[2]/255, exponent[2]) * amplitude[2] + offset[2])) * 255, + ]; + } + + const amplitudes = [2, 1.1, 0.5]; + const exponents = [5, 3, 1]; + const offsets = [0.25, 0, 0.5]; + ctx.filter = new CanvasFilter({name: 'componentTransfer', + funcR: {type: 'gamma', amplitude: amplitudes[0], exponent: exponents[0], offset: offsets[0]}, + funcG: {type: 'gamma', amplitude: amplitudes[1], exponent: exponents[1], offset: offsets[1]}, + funcB: {type: 'gamma', amplitude: amplitudes[2], exponent: exponents[2], offset: offsets[2]}, + }); + + 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, amplitudes, exponents, offsets); + 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); + } + t.done(); +}); +done(); |