| <!DOCTYPE html> |
| <html> |
| <script id="vshader" type="x-shader/x-vertex"> |
| attribute vec4 a1; |
| void main () { |
| gl_Position = a1; |
| } |
| </script> |
| |
| <script id="fshader" type="x-shader/x-fragment"> |
| #ifdef GL_ES |
| precision highp float; |
| #endif |
| void main() { |
| gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0); |
| } |
| </script> |
| |
| <body> |
| <div id="results"></div> |
| <canvas id="canvas"></canvas> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| const canvas = document.getElementById("canvas"); |
| const gl = canvas.getContext("webgl"); |
| |
| const vShader = gl.createShader(gl.VERTEX_SHADER); |
| gl.shaderSource(vShader, document.getElementById("vshader").text); |
| gl.compileShader(vShader); |
| |
| const fShader = gl.createShader(gl.FRAGMENT_SHADER); |
| gl.shaderSource(fShader, document.getElementById("fshader").text); |
| gl.compileShader(fShader); |
| |
| const program = gl.createProgram(); |
| gl.attachShader(program, vShader); |
| gl.attachShader(program, fShader); |
| gl.linkProgram(program); |
| gl.useProgram(program); |
| |
| const attribute = gl.getAttribLocation(program, "a1"); |
| gl.enableVertexAttribArray(attribute); |
| |
| const b1 = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, b1); |
| |
| gl.vertexAttribPointer(attribute, 1, gl.BYTE, true, 1, 0x00ffff00000000); |
| document.getElementById("results").textContent = `${gl.getError() == gl.NO_ERROR ? "FAIL" : "PASS"}: vertexAttribPointer should have an error.`; |
| |
| const b2 = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, b2); |
| gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(100), gl.DYNAMIC_DRAW); |
| |
| gl.drawArrays(gl.LINES, 100, 100); |
| </script> |
| </body> |
| </html> |
