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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<!--
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.
-->
<link rel="stylesheet" type="text/css" href="../unit.css" />
<script type="application/javascript" src="../unit.js"></script>
<script type="application/javascript" src="../util.js"></script>
<script type="application/javascript">
Tests.startUnit = function () {
var canvas = document.getElementById('gl');
var gl = wrapGLContext(getGLContext(canvas));
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
return [gl, tex];
}
Tests.testTexImage2D = function(gl) {
var b = document.createElement('b');
var div = document.createElement('div');
var c = document.getElementById('c');
assertOk("make texture",
function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_VALUE, "y + height > texture height",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 1, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_VALUE, "x + width > texture width",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_VALUE, "negative x",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, -1, 0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_VALUE, "negative y",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, -1, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_VALUE, "negative level",
function() {gl.texSubImage2D(gl.TEXTURE_2D, -1, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertThrowNoGLError(gl, "bad element b",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, b); });
assertThrowNoGLError(gl, "bad element div",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, div); });
assertThrowNoGLError(gl, "no element",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, 0); });
assertThrowNoGLError(gl, "string as data",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, gl.RGBA, gl.UNSIGNED_BYTE, "foo"); });
assertGLError(gl, gl.INVALID_ENUM, "bad target",
function() {gl.texSubImage2D(gl.FLOAT, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertOk("good args",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_OPERATION, "format not same as original",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_OPERATION, "type not same as original",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c); });
assertOk("make texture RGB",
function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, c); });
assertOk("format same as original RGB",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_OPERATION, "format not same as original RGB",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_OPERATION, "type not same as original RGB",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_SHORT_5_6_5, c); });
assertOk("make texture RGBA 4_4_4_4",
function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c); });
assertOk("format same as original RGBA 4_4_4_4",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_SHORT_4_4_4_4, c); });
assertGLError(gl, gl.INVALID_OPERATION, "format not same as original RGBA 4_4_4_4",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGB, gl.UNSIGNED_BYTE, c); });
assertGLError(gl, gl.INVALID_OPERATION, "type not same as original RGBA 4_4_4_4",
function() {gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, gl.RGBA, gl.UNSIGNED_BYTE, c); });
}
Tests.endUnit = function(gl, tex) {
gl.bindTexture(gl.TEXTURE_2D, null);
gl.deleteTexture(tex);
}
</script>
<style>canvas{ position:absolute; }</style>
</head><body>
<canvas id="gl" width="16" height="16"></canvas>
<canvas id="c" width="16" height="16"></canvas>
</body></html>
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