texture-upload-cube-maps.html

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Copyright (c) 2019 The Khronos Group Inc.

Use of this source code is governed by an MIT-style license that can be

found in the LICENSE.txt file.

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<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<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>

</head>

<body>

<canvas id="example" width="2" height="2"></canvas>

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

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

<script>

"use strict";

description('Tests texImage2D and texSubImage2D upload path for TEXTURE_CUBE_MAP');

var wtu = WebGLTestUtils;

var canvas = document.getElementById("example");

var gl = wtu.create3DContext(canvas);

wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

function testOneTarget(target, width, height) {

  var tex = gl.createTexture();

  gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from bindTexture(TEXTURE_CUBE_MAP).");

  gl.texImage2D(target, 0, gl.RGB, width, height, 0, gl.RGB, gl.UNSIGNED_BYTE, null);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from texImage2D.");

  var buf = new Uint8Array(width * height * 3);

  gl.texSubImage2D(target, 0, 0, 0, width, height, gl.RGB, gl.UNSIGNED_BYTE, buf);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from texSubImage2D.");

testOneTarget(gl.TEXTURE_CUBE_MAP_POSITIVE_X, 16, 16);

testOneTarget(gl.TEXTURE_CUBE_MAP_POSITIVE_Y, 16, 16);

testOneTarget(gl.TEXTURE_CUBE_MAP_POSITIVE_Z, 16, 16);

testOneTarget(gl.TEXTURE_CUBE_MAP_NEGATIVE_X, 16, 16);

testOneTarget(gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, 16, 16);

testOneTarget(gl.TEXTURE_CUBE_MAP_NEGATIVE_Z, 16, 16);

var successfullyParsed = true;

</script>

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