The Tor Browser: content/canvas/test/webgl-conformance/conformance/resources/glsl-conformance-test.js@6474c204b198 (annotated)

content/canvas/test/webgl-conformance/conformance/resources/glsl-conformance-test.js@6474c204b198 (annotated)

content/canvas/test/webgl-conformance/conformance/resources/glsl-conformance-test.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 GLSLConformanceTester = (function(){
 var wtu = WebGLTestUtils;
 var defaultVertexShader = [
   "attribute vec4 vPosition;",
   "void main()",
   "{",
   "    gl_Position = vPosition;",
   "}"
 ].join('\n');
 var defaultFragmentShader = [
   "precision mediump float;",
   "void main()",
   "{",
   "    gl_FragColor = vec4(1.0,0.0,0.0,1.0);",
   "}"
 ].join('\n');
 function log(msg) {
   if (window.console && window.console.log) {
     window.console.log(msg);
   }
 }
 var vShaderDB = {};
 var fShaderDB = {};
 /**
  * vShaderSource: the source code for vertex shader
  * vShaderSuccess: true if vertex shader compiliation should
  *   succeed.
  * fShaderSource: the source code for fragment shader
  * fShaderSuccess: true if fragment shader compiliation should
  *   succeed.
  * linkSuccess: true of link should succeed
  * passMsg: msg to describe success condition.
  * render: if true render to unit quad. Green = success
  *
  */
 function runOneTest(gl, info) {
   var passMsg = info.passMsg
   debug("test: " + passMsg);
   var console = document.getElementById("console");
   if (info.vShaderSource === undefined) {
     if (info.vShaderId) {
       info.vShaderSource = document.getElementById(info.vShaderId).text;
     } else {
       info.vShader = 'defaultVertexShader';
       info.vShaderSource = defaultVertexShader;
     }
   }
   if (info.fShaderSource === undefined) {
     if (info.fShaderId) {
       info.fShaderSource = document.getElementById(info.fShaderId).text;
     } else {
       info.fShader = 'defaultFragmentShader';
       info.fShaderSource = defaultFragmentShader;
     }
   }
   var vLabel = (info.vShaderSource == defaultVertexShader ? "default" : "test") + " vertex shader";
   var fLabel = (info.fShaderSource == defaultFragmentShader ? "default" : "test") + " fragment shader";
   var vSource = info.vShaderPrep ? info.vShaderPrep(info.vShaderSource) :
     info.vShaderSource;
   wtu.addShaderSource(console, vLabel, vSource);
   // Reuse identical shaders so we test shared shader.
   var vShader = vShaderDB[vSource];
   if (!vShader) {
     vShader = wtu.loadShader(gl, vSource, gl.VERTEX_SHADER);
     if (info.vShaderTest) {
       if (!info.vShaderTest(vShader)) {
         testFailed("[vertex shader test] " + passMsg);
         return;
       }
     }
     // As per GLSL 1.0.17 10.27 we can only check for success on
     // compileShader, not failure.
     if (info.vShaderSuccess && !vShader) {
       testFailed("[unexpected vertex shader compile status] (expected: " +
                  info.vShaderSuccess + ") " + passMsg);
     }
     // Save the shaders so we test shared shader.
     if (vShader) {
       vShaderDB[vSource] = vShader;
     }
   }
   var fSource = info.fShaderPrep ? info.fShaderPrep(info.fShaderSource) :
     info.fShaderSource;
   wtu.addShaderSource(console, fLabel, fSource);
   // Reuse identical shaders so we test shared shader.
   var fShader = fShaderDB[fSource];
   if (!fShader) {
     fShader = wtu.loadShader(gl, fSource, gl.FRAGMENT_SHADER);
     if (info.fShaderTest) {
       if (!info.fShaderTest(fShader)) {
         testFailed("[fragment shdaer test] " + passMsg);
         return;
       }
     }
     //debug(fShader == null ? "fail" : "succeed");
     // As per GLSL 1.0.17 10.27 we can only check for success on
     // compileShader, not failure.
     if (info.fShaderSuccess && !fShader) {
       testFailed("[unexpected fragment shader compile status] (expected: " +
                 info.fShaderSuccess + ") " + passMsg);
       return;
     }
     // Safe the shaders so we test shared shader.
     if (fShader) {
       fShaderDB[fSource] = fShader;
     }
   }
   if (vShader && fShader) {
     var program = gl.createProgram();
     gl.attachShader(program, vShader);
     gl.attachShader(program, fShader);
     gl.bindAttribLocation(program, 0, "vPosition");
     gl.bindAttribLocation(program, 1, "texCoord0");
     gl.linkProgram(program);
     var linked = (gl.getProgramParameter(program, gl.LINK_STATUS) != 0);
     if (!linked) {
       var error = gl.getProgramInfoLog(program);
       log("*** Error linking program '"+program+"':"+error);
     }
     if (linked != info.linkSuccess) {
       testFailed("[unexpected link status] " + passMsg);
       return;
     }
   } else {
     if (info.linkSuccess) {
       testFailed("[link failed] " + passMsg);
       return;
     }
   }
   if (!info.render) {
     testPassed(passMsg);
     return;
   }
   gl.useProgram(program);
   wtu.setupUnitQuad(gl);
   wtu.drawQuad(gl);
   var div = document.createElement("div");
   div.className = "testimages";
   wtu.insertImage(div, "result", wtu.makeImage(gl.canvas));
   div.appendChild(document.createElement('br'));
   console.appendChild(div);
   wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0);
 }
 function runTests(shaderInfos) {
   var wtu = WebGLTestUtils;
   var canvas = document.createElement('canvas');
   canvas.width = 32;
   canvas.height = 32;
   var gl = wtu.create3DContext(canvas);
   if (!gl) {
     testFailed("context does not exist");
     finishTest();
     return;
   }
   for (var ii = 0; ii < shaderInfos.length; ++ii) {
     runOneTest(gl, shaderInfos[ii]);
   }
   finishTest();
 };
 function loadExternalShaders(filename, passMsg) {
   var shaderInfos = [];
   var lines = wtu.readFileList(filename);
   for (var ii = 0; ii < lines.length; ++ii) {
     var info = {
       vShaderSource:  defaultVertexShader,
       vShaderSuccess: true,
       fShaderSource:  defaultFragmentShader,
       fShaderSuccess: true,
       linkSuccess:    true,
     };
     var line = lines[ii];
     var files = line.split(/ +/);
     var passMsg = "";
     for (var jj = 0; jj < files.length; ++jj) {
       var file = files[jj];
       var shaderSource = wtu.readFile(file);
       var firstLine = shaderSource.split("\n")[0];
       var success = undefined;
       if (firstLine.indexOf("fail") >= 0) {
         success = false;
       } else if (firstLine.indexOf("succeed") >= 0) {
         success = true;
       }
       if (success === undefined) {
         testFailed("bad first line in " + file + ":" + firstLine);
         continue;
       }
       if (!wtu.startsWith(firstLine, "// ")) {
         testFailed("bad first line in " + file + ":" + firstLine);
         continue;
       }
       passMsg = passMsg + (passMsg.length ? ", " : "") + firstLine.substr(3);
       if (wtu.endsWith(file, ".vert")) {
         info.vShaderSource = shaderSource;
         info.vShaderSuccess = success;
       } else if (wtu.endsWith(file, ".frag")) {
         info.fShaderSource = shaderSource;
         info.fShaderSuccess = success;
       }
     }
     info.linkSuccess = info.vShaderSuccess && info.fShaderSuccess;
     info.passMsg = passMsg;
     shaderInfos.push(info);
   }
   return shaderInfos;
 }
 function getSource(elem) {
   var str = elem.text;
   return str.replace(/^\s*/, '').replace(/\s*$/, '');
 }
 function getPassMessage(source) {
   var lines = source.split('\n');
   return lines[0].substring(3);
 }
 function getSuccess(msg) {
   if (msg.indexOf("fail") >= 0) {
     return false;
   }
   if (msg.indexOf("succeed") >= 0) {
     return true;
   }
   testFailed("bad test description. Must have 'fail' or 'success'");
 }
 function setupTest() {
   var vShaderElem = document.getElementById('vertexShader');
   var vShaderSource = defaultVertexShader;
   var vShaderSuccess = true;
   var fShaderElem = document.getElementById('fragmentShader');
   var fShaderSource = defaultFragmentShader;
   var fShaderSuccess = true;
   var passMsg = undefined;
   if (vShaderElem) {
     vShaderSource = getSource(vShaderElem);
     passMsg = getPassMessage(vShaderSource);
     vShaderSuccess = getSuccess(passMsg);
   }
   if (fShaderElem) {
     fShaderSource = getSource(fShaderElem);
     passMsg = getPassMessage(fShaderSource);
     fShaderSuccess = getSuccess(passMsg);
   }
   var linkSuccess = vShaderSuccess && fShaderSuccess;
   if (passMsg === undefined) {
     testFailed("no test shader found.");
     finishTest();
     return;
   }
   var info = {
     vShaderSource: vShaderSource,
     vShaderSuccess: vShaderSuccess,
     fShaderSource: fShaderSource,
     fShaderSuccess: fShaderSuccess,
     linkSuccess: linkSuccess,
     passMsg: passMsg
   };
   return info;
 }
 function runTest() {
   var info = setupTest();
   description(info.passMsg);
   runTests([info]);
 }
 function runRenderTests(tests) {
   for (var ii = 0; ii < tests.length; ++ii) {
     tests[ii].render = true
   }
   runTests(tests);
 }
 function runRenderTest() {
   var info = setupTest();
   description(info.passMsg);
   runRenderTests([info]);
 }
 return {
   runTest: runTest,
   runTests: runTests,
   runRenderTest: runRenderTest,
   runRenderTests: runRenderTests,
   loadExternalShaders: loadExternalShaders,
   none: false,
 };
 }());