Chromium Code Reviews Chromium Code Reviews
Issue 20723003:
Fix pixel snapping issues when layers become composited (Closed)
Base URL: svn://svn.chromium.org/blink/trunk| Index: LayoutTests/fast/sub-pixel/sub-pixel-composited-layers.html |
| diff --git a/LayoutTests/fast/sub-pixel/sub-pixel-composited-layers.html b/LayoutTests/fast/sub-pixel/sub-pixel-composited-layers.html |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..7c327f9258b3b01f8427436c088749147a3567d2 |
| --- /dev/null |
| +++ b/LayoutTests/fast/sub-pixel/sub-pixel-composited-layers.html |
| @@ -0,0 +1,95 @@ |
| +<html> |
| +<head> |
| +<style> |
| + #test { |
| + margin: 5px; |
| + } |
| + #test.composite > .container { |
| + -webkit-transform: translateZ(0); |
| + opacity: 0.95; |
| + } |
| + .container { |
| + position: absolute; |
| + } |
| + .shifter { |
| + position: absolute; |
| + background-color: black; |
| + width: 12.5px; |
| + height: 12.5px; |
| + } |
| + .shifter8x8 { |
| + position: absolute; |
| + background-color: black; |
| + width: 16.5px; |
| + height: 16.5px; |
| + } |
| +</style> |
| +</head> |
| +<body> |
| +<div id=test class=composite> |
| +</div> |
| +<script> |
| + function setupGrid10x10(leftOffset, topOffset, leftFraction, topFraction) |
|
eae
2013/11/13 00:29:01
Instead of duplicating the code why not do setupGr
leviw_travelin_and_unemployed
2013/11/13 00:31:52
Sorry, yeah. Copied this from the WK bug :D Will f
|
| + { |
| + var test = document.getElementById('test'); |
| + for (var i = 0; i < 10; i++) { |
| + if (i == 5) |
| + topOffset += 5; |
| + var leftOffsetj = leftOffset; |
| + for (var j = 0; j < 10; j++) { |
| + if (j == 5) |
| + leftOffsetj += 5; |
| + var container = document.createElement("div"); |
| + var shifter = document.createElement("div"); |
| + container.setAttribute('class', 'container'); |
| + shifter.setAttribute('class', 'shifter'); |
| + container.style.left = (leftOffsetj + j * 16 + i * leftFraction) + "px" |
| + container.style.top = (topOffset + i * 16 + i * topFraction) + "px" |
| + shifter.style.left = (5 + j * leftFraction) + "px" |
| + shifter.style.top = (5 + j * topFraction) + "px" |
| + container.appendChild(shifter); |
| + test.appendChild(container); |
| + } |
| + } |
| + } |
| + |
| + function setupGrid8x8(leftOffset, topOffset, leftFraction, topFraction) |
| + { |
| + var test = document.getElementById('test'); |
| + for (var i = 0; i < 8; i++) { |
| + if (i == 4) |
| + topOffset += 5; |
| + var leftOffsetj = leftOffset; |
| + for (var j = 0; j < 8; j++) { |
| + if (j == 4) |
| + leftOffsetj += 5; |
| + var container = document.createElement("div"); |
| + var shifter = document.createElement("div"); |
| + container.setAttribute('class', 'container'); |
| + shifter.setAttribute('class', 'shifter8x8'); |
| + container.style.left = (leftOffsetj + j * 20 + i * leftFraction) + "px" |
| + container.style.top = (topOffset + i * 20 + i * topFraction) + "px" |
| + shifter.style.left = (5 + j * leftFraction) + "px" |
| + shifter.style.top = (5 + j * topFraction) + "px" |
| + container.appendChild(shifter); |
| + test.appendChild(container); |
| + } |
| + } |
| + } |
| + |
| + function setupTest() |
| + { |
| + // Vertical shifts: |
| + setupGrid10x10(10, 10, 0, 0.1) |
| + // Horizontal shifts: |
| + setupGrid10x10(200, 10, 0.1, 0); |
| + |
| + // And in 8x8 (where exactly 0.5 is more common) |
| + setupGrid8x8(10, 200, 0, 0.125); |
| + setupGrid8x8(200, 200, 0.125, 0); |
| + } |
| + |
| + setupTest(); |
| +</script> |
| +</body> |
| +</html> |
