| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <link rel="match" href="2d.layer.global-states.alpha.composite-expected.html"> |
| <title>Canvas test: 2d.layer.global-states.alpha.composite</title> |
| <h1>2d.layer.global-states.alpha.composite</h1> |
| <p class="desc">Checks that layers correctly use global render states.</p> |
| <canvas id="canvas" width="90" height="90"> |
| <p class="fallback">FAIL (fallback content)</p> |
| </canvas> |
| <script> |
| const canvas = document.getElementById("canvas"); |
| const ctx = canvas.getContext('2d'); |
| |
| ctx.fillStyle = 'rgba(128, 128, 128, 1)'; |
| ctx.fillRect(20, 15, 50, 50); |
| |
| ctx.globalAlpha = 0.75; |
| ctx.globalCompositeOperation = 'source-in'; |
| |
| ctx.beginLayer(); |
| |
| // Enable compositing in the layer to validate that draw calls in the layer |
| // won't individually composite with the background. |
| ctx.globalCompositeOperation = 'screen'; |
| |
| ctx.fillStyle = 'rgba(255, 0, 0, 1)'; |
| ctx.fillRect(10, 25, 40, 50); |
| ctx.fillStyle = 'rgba(0, 255, 0, 1)'; |
| ctx.fillRect(30, 5, 50, 40); |
| |
| ctx.endLayer(); |
| </script> |
