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| /* |
| ** Copyright (c) 2015 The Khronos Group Inc. |
| ** |
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| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Test no attribute vertex shaders</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script id="vertex-shader" type="x-shader/x-vertex">#version 300 es |
| |
| void main() { |
| ivec2 xy = ivec2( |
| gl_VertexID % 2, |
| (gl_VertexID / 2 + gl_VertexID / 3) % 2); |
| gl_Position = vec4(vec2(xy) * 2. - 1., 0, 1); |
| } |
| </script> |
| <script id="fshader" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| out vec4 result; |
| void main() { |
| result = vec4(0, 1, 0, 1); |
| } |
| </script> |
| <script> |
| "use strict"; |
| description("Test no attribute shaders work as expected"); |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext(undefined, undefined, 2); |
| |
| function test() { |
| debug(""); |
| var program = wtu.setupProgram(gl, ["vertex-shader", "fshader"], undefined, undefined, true); |
| if (!program) { |
| testFailed('Program compilation failed'); |
| return; |
| } |
| |
| gl.drawArrays(gl.TRIANGLES, 0, 6); |
| wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0); |
| }; |
| |
| if (!gl) { |
| testFailed("context does not exist"); |
| } else { |
| test(); |
| } |
| var successfullyParsed = true; |
| finishTest(); |
| </script> |
| </body> |
| </html> |
