diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /gfx/tests/reftest/1972885-ref.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/tests/reftest/1972885-ref.html')
| -rw-r--r-- | gfx/tests/reftest/1972885-ref.html | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gfx/tests/reftest/1972885-ref.html b/gfx/tests/reftest/1972885-ref.html new file mode 100644 index 0000000000..1466912b49 --- /dev/null +++ b/gfx/tests/reftest/1972885-ref.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<html> +<meta charset="utf-8"> +<title>Reference for Bug 1972885</title> +<style> +body { + margin: 0; +} +canvas { + /* Rounded up. */ + margin-top: 2px; + width: 100px; + /* Subpixel snapped down. */ + height: 100px; +} +</style> +<canvas id="canvas"></canvas> +<script> +function draw(canvas, width, height) { + const ctx = canvas.getContext('2d'); + canvas.width = width; + canvas.height = height; + const imgData = ctx.createImageData(width, height); + const u32View = new Uint32Array(imgData.data.buffer); + u32View.fill(0xFFFFFFFF); + for (let y = 0; y < height; y += 2) { + for (let x = 0; x < width; x++) { + u32View[y * width + x] = 0xFF000000; + } + } + ctx.putImageData(imgData, 0, 0); +} + +draw(canvas, 100, 100); +</script> |