| <!DOCTYPE HTML> |
| |
| <html> |
| <head> |
| <title>WebGL PremultipliedAlpha False Test</title> |
| <style type="text/css"> |
| .nomargin { |
| margin: 0px auto; |
| } |
| </style> |
| |
| <script> |
| function sendResult(status, detail) { |
| console.log(detail); |
| if (window.domAutomationController) { |
| window.domAutomationController.send(status); |
| } else { |
| console.log(status); |
| } |
| } |
| |
| var numFramesBeforeEnd = 15; |
| |
| function main() { |
| var canvas = document.getElementById("c"); |
| var gl = canvas.getContext( |
| 'webgl', { antialias: false, premultipliedAlpha: false }); |
| if (!gl) { |
| sendResult("FAILURE", "WebGL context not supported"); |
| return; |
| } |
| |
| // Clear the left half of the canvas to transparent red, assuming |
| // non-premultiplied alpha. |
| gl.scissor(0, 0, 150, 150); |
| gl.enable(gl.SCISSOR_TEST); |
| gl.clearColor(1.0, 0.0, 0.0, 0.4); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| gl.disable(gl.SCISSOR_TEST); |
| window.requestAnimationFrame(waitForFinish); |
| } |
| |
| function waitForFinish() |
| { |
| if (--numFramesBeforeEnd == 0) { |
| sendResult("SUCCESS", "Test complete"); |
| } else { |
| window.requestAnimationFrame(waitForFinish); |
| } |
| } |
| </script> |
| </head> |
| <body onload="main()"> |
| <canvas id="c" width="300" height="150" class="nomargin" style="position:absolute; top:0px; left:0px; background-color: #008000;"></canvas> |
| </div> |
| </body> |
| </html> |
