| // This test checks that a shader with an unbound sampler is not permitted to execute. | |
| // This shader is not referenced from the CSS mix function and writes its output to gl_FragColor. | |
| precision mediump float; | |
| uniform sampler2D u_texture; | |
| varying vec2 v_texCoord; | |
| void main() | |
| { | |
| // Try to sample the DOM element texture. | |
| vec4 color = texture2D(u_texture, v_texCoord); | |
| // Swap the red and green channels. | |
| color.rg = color.gr; | |
| gl_FragColor = color; | |
| } |