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| 1 // ArgGenerators contains argument generators for WebGL functions. |
| 2 // The argument generators are used for running random tests against the WebGL |
| 3 // functions. |
| 4 // |
| 5 // ArgGenerators is an object consisting of functionName : argGen -properties. |
| 6 // |
| 7 // functionName is a WebGL context function name and the argGen is an argument |
| 8 // generator object that encapsulates the requirements to run |
| 9 // randomly generated tests on the WebGL function. |
| 10 // |
| 11 // An argGen object has the following methods: |
| 12 // - setup -- set up state for testing the GL function, returns values |
| 13 // that need cleanup in teardown. Run once before entering a |
| 14 // test loop. |
| 15 // - teardown -- do cleanup on setup's return values after testing is complete |
| 16 // - generate -- generate a valid set of random arguments for the GL function |
| 17 // - returnValueCleanup -- do cleanup on value returned by the tested GL funct
ion |
| 18 // - cleanup -- do cleanup on generated arguments from generate |
| 19 // - checkArgValidity -- check if passed args are valid. Has a call signature |
| 20 // that matches generate's return value. Returns true |
| 21 // if args are valid, false if not. |
| 22 // |
| 23 // Example test loop that demonstrates how the function args and return |
| 24 // values flow together: |
| 25 // |
| 26 // var setupArgs = argGen.setup(); |
| 27 // for (var i=0; i<numberOfTests; i++) { |
| 28 // var generatedArgs = argGen.generate.apply(argGen, setupArgs); |
| 29 // var validArgs = argGen.checkArgValidity.apply(argGen, generatedArgs); |
| 30 // var rv = call the GL function with generatedArgs; |
| 31 // argGen.returnValueCleanup(rv); |
| 32 // argGen.cleanup.apply(argGen, generatedArgs); |
| 33 // } |
| 34 // argGen.teardown.apply(argGen, setupArgs); |
| 35 // |
| 36 ArgGenerators = { |
| 37 |
| 38 // GL functions in alphabetical order |
| 39 |
| 40 // B-2 |
| 41 |
| 42 bindBuffer : { |
| 43 generate : function(buf) { |
| 44 return [bufferTarget.random(), GL.createBuffer()]; |
| 45 }, |
| 46 checkArgValidity : function(target, buf) { |
| 47 if (!bufferTarget.has(target)) |
| 48 return false; |
| 49 GL.bindBuffer(target, buf); |
| 50 return GL.isBuffer(buf); |
| 51 }, |
| 52 cleanup : function(t, buf, m) { |
| 53 GL.deleteBuffer(buf); |
| 54 } |
| 55 }, |
| 56 bindFramebuffer : { |
| 57 generate : function() { |
| 58 return [GL.FRAMEBUFFER, Math.random() > 0.5 ? null : GL.createFramebuffer(
)]; |
| 59 }, |
| 60 checkArgValidity : function(target, fbo) { |
| 61 if (target != GL.FRAMEBUFFER) |
| 62 return false; |
| 63 if (fbo != null) |
| 64 GL.bindFramebuffer(target, fbo); |
| 65 return (fbo == null || GL.isFramebuffer(fbo)); |
| 66 }, |
| 67 cleanup : function(target, fbo) { |
| 68 GL.bindFramebuffer(target, null); |
| 69 if (fbo) |
| 70 GL.deleteFramebuffer(fbo); |
| 71 } |
| 72 }, |
| 73 bindRenderbuffer : { |
| 74 generate : function() { |
| 75 return [GL.RENDERBUFFER, Math.random() > 0.5 ? null : GL.createRenderbuffe
r()]; |
| 76 }, |
| 77 checkArgValidity : function(target, rbo) { |
| 78 if (target != GL.RENDERBUFFER) |
| 79 return false; |
| 80 if (rbo != null) |
| 81 GL.bindRenderbuffer(target, rbo); |
| 82 return (rbo == null || GL.isRenderbuffer(rbo)); |
| 83 }, |
| 84 cleanup : function(target, rbo) { |
| 85 GL.bindRenderbuffer(target, null); |
| 86 if (rbo) |
| 87 GL.deleteRenderbuffer(rbo); |
| 88 } |
| 89 }, |
| 90 bindTexture : { |
| 91 generate : function() { |
| 92 return [bindTextureTarget.random(), Math.random() > 0.5 ? null : GL.create
Texture()]; |
| 93 }, |
| 94 checkArgValidity : function(target, o) { |
| 95 if (!bindTextureTarget.has(target)) |
| 96 return false; |
| 97 if (o != null) |
| 98 GL.bindTexture(target, o); |
| 99 return (o == null || GL.isTexture(o)); |
| 100 }, |
| 101 cleanup : function(target, o) { |
| 102 GL.bindTexture(target, null); |
| 103 if (o) |
| 104 GL.deleteTexture(o); |
| 105 } |
| 106 }, |
| 107 blendColor : { |
| 108 generate : function() { return randomColor(); }, |
| 109 teardown : function() { GL.blendColor(0,0,0,0); } |
| 110 }, |
| 111 blendEquation : { |
| 112 generate : function() { return [blendEquationMode.random()]; }, |
| 113 checkArgValidity : function(o) { return blendEquationMode.has(o); }, |
| 114 teardown : function() { GL.blendEquation(GL.FUNC_ADD); } |
| 115 }, |
| 116 blendEquationSeparate : { |
| 117 generate : function() { |
| 118 return [blendEquationMode.random(), blendEquationMode.random()]; |
| 119 }, |
| 120 checkArgValidity : function(o,p) { |
| 121 return blendEquationMode.has(o) && blendEquationMode.has(p); |
| 122 }, |
| 123 teardown : function() { GL.blendEquationSeparate(GL.FUNC_ADD, GL.FUNC_ADD);
} |
| 124 }, |
| 125 blendFunc : { |
| 126 generate : function() { |
| 127 return [blendFuncSfactor.random(), blendFuncDfactor.random()]; |
| 128 }, |
| 129 checkArgValidity : function(s,d) { |
| 130 return blendFuncSfactor.has(s) && blendFuncDfactor.has(d); |
| 131 }, |
| 132 teardown : function() { GL.blendFunc(GL.ONE, GL.ZERO); } |
| 133 }, |
| 134 blendFuncSeparate : { |
| 135 generate : function() { |
| 136 return [blendFuncSfactor.random(), blendFuncDfactor.random(), |
| 137 blendFuncSfactor.random(), blendFuncDfactor.random()]; |
| 138 }, |
| 139 checkArgValidity : function(s,d,as,ad) { |
| 140 return blendFuncSfactor.has(s) && blendFuncDfactor.has(d) && |
| 141 blendFuncSfactor.has(as) && blendFuncDfactor.has(ad) ; |
| 142 }, |
| 143 teardown : function() { |
| 144 GL.blendFuncSeparate(GL.ONE, GL.ZERO, GL.ONE, GL.ZERO); |
| 145 } |
| 146 } |
| 147 |
| 148 }; |
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