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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
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** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../resources/js-test-pre.js"></script>
<script src="../resources/webgl-test.js"></script>
<script src="../resources/webgl-test-utils.js"></script>
</head>
<body>
<canvas id="example" width="4" height="4"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description('Verifies that GL texture bindings do not change when canvas is resized');
var err;
var wtu = WebGLTestUtils;
var canvas = document.getElementById("example");
var gl = wtu.create3DContext(canvas);
var program = wtu.setupTexturedQuad(gl);
var green = [0, 255, 0, 255];
var blue = [0, 0, 255, 255];
var tex0 = gl.createTexture();
wtu.fillTexture(gl, tex0, 1, 1, blue, 0);
gl.activeTexture(gl.TEXTURE1)
var tex1 = gl.createTexture();
wtu.fillTexture(gl, tex1, 1, 1, green, 0);
var loc = gl.getUniformLocation(program, "tex");
function test() {
gl.viewport(0, 0, canvas.width, canvas.height);
gl.uniform1i(loc, 0);
wtu.clearAndDrawUnitQuad(gl);
wtu.checkCanvas(gl, blue, "should be blue");
gl.uniform1i(loc, 1);
wtu.clearAndDrawUnitQuad(gl);
wtu.checkCanvas(gl, green, "should be green");
}
debug("test before resizing canvas");
test();
debug("test after resizing canvas");
canvas.width = 8;
test();
debug("test after resizing canvas and waiting for compositing");
canvas.width = 16;
wtu.waitForComposite(gl, function() {
test();
finishTest();
glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");
});
var successfullyParsed = true;
</script>
</body>
</html>