| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <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> |
| <script src="../../js/test-eval.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| "use strict"; |
| var wtu = WebGLTestUtils; |
| description("Test that conversion of boolean arguments of WebGL functions follows EcmaScript 9.2. ToBoolean"); |
| debug(""); |
| debug("When an object is converted to a boolean, it should always evaluate as true. Any valueOf() method should not even get called. See Mozilla bug 727590 where Gecko incorrectly converted such an argument to a Number instead of a Boolean, giving the wrong behavior. See 9.2 and 9.3 in the EcmaScript specification."); |
| debug(""); |
| var gl = wtu.create3DContext(); |
| var program = wtu.loadStandardProgram(gl); |
| var shader = wtu.loadStandardVertexShader(gl); |
| var shouldGenerateGLError = wtu.shouldGenerateGLError; |
| |
| assertMsg(program != null, "Program Compiled"); |
| assertMsg(shader != null, "Shader Compiled"); |
| |
| var uloc = gl.getUniformLocation(program, "u_modelViewProjMatrix"); |
| var aloc = gl.getAttribLocation(program, "a_vertex"); |
| |
| gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer()); |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from initialization."); |
| assertMsg(uloc, "Uniform not found"); |
| assertMsg(aloc >= 0, "Attribute not found"); |
| |
| var boolArg = { valueOf: function() { throw "Converting an Object to a Boolean should just give 'true' without further evaluation"; } } |
| |
| function shouldNotThrowWithBoolArgs(code) { |
| try { |
| TestEval(code); |
| } catch(e) { |
| testFailed(code + " threw exception: " + e); |
| return; |
| } |
| testPassed(code + " converted its boolean arguments correctly"); |
| } |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.colorMask(boolArg, boolArg, boolArg, boolArg)" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.depthMask(boolArg)" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.sampleCoverage(1, boolArg)" |
| ); |
| |
| function zeroArray(length) { |
| var a = new Array(length); |
| for (var i = 0; i < length; i++) |
| a[i] = 0; |
| return a; |
| } |
| |
| function zeroFloat32Array(length) { |
| var a = new Float32Array(length); |
| for (var i = 0; i < length; i++) |
| a[i] = 0; |
| return a; |
| } |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix2fv(uloc, boolArg, zeroFloat32Array(4))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix2fv(uloc, boolArg, zeroArray(4))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix3fv(uloc, boolArg, zeroFloat32Array(9))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix3fv(uloc, boolArg, zeroArray(9))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix4fv(uloc, boolArg, zeroFloat32Array(16))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.uniformMatrix4fv(uloc, boolArg, zeroArray(16))" |
| ); |
| |
| shouldNotThrowWithBoolArgs( |
| "gl.vertexAttribPointer(aloc, 4, gl.FLOAT, boolArg, 4, 0)" |
| ); |
| |
| var successfullyParsed = true; |
| </script> |
| |
| <script src="../../js/js-test-post.js"></script> |
| </body> |
| </html> |
