| <!DOCTYPE html> |
| <style> |
| canvas { |
| width: 100px; |
| height: 100px; |
| image-rendering: pixelated; |
| } |
| </style> |
| <body> |
| <!-- Test drawing a canvas off-screen then appending it to the DOM. --> |
| <!-- The resulting image should be 100x100, consisting of 4 50x50 blocks of solid color, with no blurring of edges --> |
| </body> |
| <script> |
| var canvas = document.createElement('canvas'); |
| canvas.width = 2; |
| canvas.height = 2; |
| |
| var context = canvas.getContext("2d"); |
| var imageHandle = context.createImageData(canvas.width, canvas.height); |
| |
| var index = 0; |
| |
| imageHandle.data[index++] = 255; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 255; |
| |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 255; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 255; |
| |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 255; |
| imageHandle.data[index++] = 255; |
| |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 0; |
| imageHandle.data[index++] = 255; |
| |
| context.putImageData(imageHandle, 0, 0); |
| document.getElementsByTagName("body")[0].appendChild(canvas); |
| </script> |
