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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,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
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**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL texture size limit conformance test.</title>
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src="../../resources/js-test-pre.js"></script>
<script src="../resources/webgl-test-utils.js"></script>
</head>
<body>
<canvas id="example" width="32" height="32" style="width: 40px; height: 40px;"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description("Checks various size limits of textures")
var canvas;
function numLevelsFromSize(size) {
var levels = 0;
while ((size >> levels) > 0) {
++levels;
}
return levels;
}
var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("example");
var tests = [
{ format: gl.ALPHA, type: gl.UNSIGNED_BYTE, size: 1, dataType: Uint8Array },
{ format: gl.LUMINANCE, type: gl.UNSIGNED_BYTE, size: 1, dataType: Uint8Array },
{ format: gl.LUMINANCE_ALPHA, type: gl.UNSIGNED_BYTE, size: 2, dataType: Uint8Array },
{ format: gl.RGB, type: gl.UNSIGNED_BYTE, size: 3, dataType: Uint8Array },
{ format: gl.RGB, type: gl.UNSIGNED_SHORT_5_6_5, size: 1, dataType: Uint16Array },
{ format: gl.RGBA, type: gl.UNSIGNED_BYTE, size: 4, dataType: Uint8Array },
{ format: gl.RGBA, type: gl.UNSIGNED_SHORT_4_4_4_4, size: 1, dataType: Uint16Array },
{ format: gl.RGBA, type: gl.UNSIGNED_SHORT_5_5_5_1, size: 1, dataType: Uint16Array }
];
// Note: We expressly only use 2 textures because first a texture will be defined
// using all mip levels of 1 format, then for a moment it will have mixed formats which
// may uncover bugs.
var targets = [
{ target: gl.TEXTURE_2D,
maxSize: gl.getParameter(gl.MAX_TEXTURE_SIZE),
maxLevel: 1000,
tex: gl.createTexture(),
targets: [gl.TEXTURE_2D]
},
{ target: gl.TEXTURE_CUBE_MAP,
maxSize: gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE),
maxLevel: 5,
tex: gl.createTexture(),
targets: [
gl.TEXTURE_CUBE_MAP_POSITIVE_X,
gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Z
]
}
];
gl.pixelStorei(gl.UNPACK_ALIGNMENT, 1);
var trg = 0;
var tt = 0;
runNextTest();
function runNextTest() {
var t = targets[trg];
if (tt == 0) {
var tex = t.tex;
gl.bindTexture(t.target, tex);
debug("");
debug("max size for " + wtu.glEnumToString(gl, t.target) + ": " + t.maxSize);
var numLevels = numLevelsFromSize(t.maxSize);
debug("num levels " + numLevels);
}
var test = tests[tt];
testFormatType(t, test);
++tt;
if (tt == tests.length) {
tt = 0;
++trg;
if (trg == targets.length) {
finishTest();
return;
}
}
wtu.waitForComposite(runNextTest)
}
function testFormatType(t, test) {
debug("");
debug("testing: " + wtu.glEnumToString(gl, test.format) + ", " + wtu.glEnumToString(gl, test.type));
for (var j = 0; j < t.targets.length; ++j) {
var target = t.targets[j];
debug("");
debug(wtu.glEnumToString(gl, target));
var numLevels = numLevelsFromSize(t.maxSize);
var numTestLevels = Math.min(numLevels, t.maxLevel);
// out of bounds tests
// level out of bounds
gl.texImage2D(target, numLevels, test.format, 1, 1, 0, test.format, test.type, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "level out of bounds: should generate INVALID_VALUE: level is: "
+ numLevels + ", size is 1x1.");
// width and height out of bounds
gl.texImage2D(target, 0, test.format, t.maxSize + 1, t.maxSize + 1, 0, test.format, test.type, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "width or height out of bounds: should generate INVALID_VALUE: level is 0, size is "
+ (t.maxSize + 1) + "x" + (t.maxSize + 1));
// width and height out of bounds for specified level
gl.texImage2D(target, (numLevels - 1), test.format, 4, 4, 0, test.format, test.type, null);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "width or height out of bounds for specified level: should generate INVALID_VALUE: level is "
+ (numLevels - 1) + ", size is 4x4.");
for (var l = 0; l < numTestLevels; ++l) {
// Do bottom levels first;
var size = 1 << l;
var level = numLevels - l - 1;
var otherDimension = t.target == gl.TEXTURE_2D ? 1 : size;
var badSize = size * 2;
var badOtherDimension = t.target == gl.TEXTURE_2D ? 1 : badSize;
var pixels = new test.dataType(badSize * badOtherDimension * test.size);
gl.texImage2D(target, level, test.format, size, otherDimension, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no error for level: " + level + " " + size + "x" + otherDimension);
gl.texImage2D(target, level, test.format, otherDimension, size, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no error for level: " + level + " " + otherDimension + "x" + size);
gl.texImage2D(target, level, test.format, badSize, badOtherDimension, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "should generate INVALID_VALUE for level: " + level + " " + badSize + "x" + badOtherDimension);
gl.texImage2D(target, level, test.format, badOtherDimension, badSize, 0, test.format, test.type, pixels);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "should generate INVALID_VALUE for level: " + level + " " + badOtherDimension + "x" + badSize);
}
}
}
var successfullyParsed = true;
</script>
</body>
</html>
|
