draw-with-integer-texture-base-level.html

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<title>WebGL Draw With Integer Texture Base Level Tests</title>

<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/tests/tex-image-and-sub-image-utils.js"></script>

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<canvas id="example" width="24" height="24"></canvas>

<div id="description"></div>

<div id="console"></div>

<script>

"use strict";

var canvas;

var wtu = WebGLTestUtils;

canvas = document.getElementById("example");

var gl = wtu.create3DContext(canvas, undefined, 2);

var tiu = TexImageUtils;

// Both Chrome and Firefox fail on this test on NVIDIA Windows, see crbug.com/679639.

function testDrawIntegerTextureBaseLevel()

    description("This test verifies the functionality of rendering with integer texture non-zero base level.");

    var green = [0, 255, 0, 255];

    var width = 16;

    var height = 16;

    canvas.width = width;

    canvas.height = height;

    gl.viewport(0, 0, width, height);

    var texture = gl.createTexture();

    var level = 1;

    gl.bindTexture(gl.TEXTURE_2D, texture);

    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);

    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_BASE_LEVEL, level);

    wtu.fillTexture(gl, texture, width, height, green, level, gl.RGBA_INTEGER, gl.UNSIGNED_BYTE, gl.RGBA8UI);

    wtu.glErrorShouldBe(gl, gl.NO_ERROR);

    var program = tiu.setupTexturedQuad(gl, "RGBA8UI");

    gl.drawArrays(gl.TRIANGLES, 0, 6);

    wtu.glErrorShouldBe(gl, gl.NO_ERROR);

    wtu.checkCanvas(gl, green);

testDrawIntegerTextureBaseLevel();

var successfullyParsed = true;

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