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<!DOCTYPE HTML>
<html>
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
</head>
<body>
<script>
WEBGL_TYPES = {};
WEBGL_TYPES['experimental-webgl'] = true;
WEBGL_TYPES['webgl'] = true;
function AreBothIn(a, b, set) {
return (a in set) && (b in set);
}
function IsAlias(typeA, typeB) {
if (typeA == typeB)
return true;
if (AreBothIn(typeA, typeB, WEBGL_TYPES))
return true;
return false;
}
function TestContextRetrieval(creationType, requestType, functionalTypeSet) {
var canvas = document.createElement('canvas');
var createdGL = canvas.getContext(creationType);
var didCreationSucceed = (createdGL != null);
if (creationType in functionalTypeSet) {
ok(createdGL, 'Context creation should succeed for type \'' +
creationType + '\'');
} else {
ok(!createdGL, 'Context creation should fail for type \'' +
creationType + '\'');
return;
}
var requestedGL = canvas.getContext(requestType);
if (requestType in functionalTypeSet &&
IsAlias(creationType, requestType))
{
ok(requestedGL, 'Request for \'' + requestType + '\' from \'' +
creationType + '\' should succeed.');
ok(requestedGL == createdGL, 'Request for \'' + requestType +
'\' from \'' + creationType +
'\' should match.');
} else {
ok(!requestedGL, 'Request for \'' + requestType + '\' from \'' +
creationType + '\' should fail.');
}
}
function IsWebGLFunctional() {
var canvas = document.createElement('canvas');
return canvas.getContext('experimental-webgl') != null;
}
function IsWebGLConformant() {
var canvas = document.createElement('canvas');
return canvas.getContext('webgl') != null;
}
var typeList = ['2d', 'experimental-webgl', 'webgl'];
var functionalTypeSet = {};
functionalTypeSet['2d'] = true;
if (IsWebGLFunctional())
functionalTypeSet['experimental-webgl'] = true;
if (IsWebGLConformant())
functionalTypeSet['webgl'] = true;
for (var i in typeList) {
var creationType = typeList[i];
for (var j in typeList) {
var requestType = typeList[j];
TestContextRetrieval(creationType, requestType, functionalTypeSet);
}
}
</script>
</body>
</html>
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