| <body> |
| <p>Ensure that if a shader extension directive is specified after non-preprocessor symbols, no errors are logged.</p> |
| <canvas></canvas> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| const fragmentShaderSource = ` |
| precision highp float; |
| #extension GL_OES_standard_derivatives : enable |
| |
| void main() { |
| gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0); |
| } |
| `; |
| |
| const canvas = document.querySelector('canvas'); |
| const gl = canvas.getContext("webgl"); |
| |
| gl.getExtension('OES_standard_derivatives'); |
| |
| const shader = gl.createShader(gl.FRAGMENT_SHADER); |
| gl.shaderSource(shader, fragmentShaderSource); |
| gl.compileShader(shader); |
| const success = gl.getShaderParameter(shader, gl.COMPILE_STATUS); |
| if (!success) |
| console.log(gl.getShaderInfoLog(shader)); |
| </script> |
| </body> |
