diff options
Diffstat (limited to 'dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/reftests/create-pattern-data-url.ts')
-rw-r--r-- | dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/reftests/create-pattern-data-url.ts | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/reftests/create-pattern-data-url.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/reftests/create-pattern-data-url.ts new file mode 100644 index 0000000000..aa96bbd85b --- /dev/null +++ b/dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/reftests/create-pattern-data-url.ts @@ -0,0 +1,23 @@ +// creates a 4x4 pattern +export default function createPatternDataURL() { + const patternSize = 4; + const ctx = document.createElement('canvas').getContext('2d')!; + ctx.canvas.width = patternSize; + ctx.canvas.height = patternSize; + + const b = [0, 0, 0, 255]; + const t = [0, 0, 0, 0]; + const r = [255, 0, 0, 255]; + const g = [0, 255, 0, 255]; + + const imageData = new ImageData(patternSize, patternSize); + // prettier-ignore + imageData.data.set([ + b, t, t, r, + t, b, g, t, + t, r, b, t, + g, t, t, b, + ].flat()); + ctx.putImageData(imageData, 0, 0); + return { patternSize, imageData, dataURL: ctx.canvas.toDataURL() }; +} |