diff options
Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-size-limit.html | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-size-limit.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-size-limit.html new file mode 100644 index 0000000000..3e093b3a53 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/texture-size-limit.html @@ -0,0 +1,167 @@ +<!-- +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. +--> + +<!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="../../../js/js-test-pre.js"></script> +<script src="../../../js/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, + targets: [gl.TEXTURE_2D] + }, + { target: gl.TEXTURE_CUBE_MAP, + maxSize: gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE), + maxLevel: 5, + 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; +var tex = null; +runNextTest(); + +function runNextTest() { + var t = targets[trg]; + + if (tt == 0) { + gl.deleteTexture(tex); + tex = gl.createTexture(); + 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.dispatchPromise(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); + + // out of bounds tests + for (var i = 0; i < numLevels; i++) { + // width and height out of bounds + var size = t.maxSize >> i; + gl.texImage2D(target, i, test.format, size + 1, size + 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 " + i + ", size is " + + (size + 1) + "x" + (size + 1)); + } + // 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."); + + // Probe to discover the max non-OOM level. + // For instance, on some drivers (at least Intel+Mesa) we can create + // a maxLevel L8 texture, but only a maxLevel-1 RGB8 texture. + var maxLevelsForFormat = numLevels; + while (true) { + gl.texImage2D(target, maxLevelsForFormat-1, test.format, 1, 1, 0, test.format, test.type, null); + var err = gl.getError(); + if (err == gl.OUT_OF_MEMORY) { + debug("Probe failed for level=" + (maxLevelsForFormat-1) + ", reducing..."); + maxLevelsForFormat -= 1; + if (!maxLevelsForFormat) { + testFailed("Failed to allocate any levels for format " + test.format); + return; + } + continue; + } + if (err) { + testFailed("Should not hit non-OOM errors during max level probing."); + return; + } + break; + } + var numTestLevels = Math.min(maxLevelsForFormat, t.maxLevel); + for (var l = 0; l < numTestLevels; ++l) { + // Do bottom levels first; + var size = 1 << l; + var level = maxLevelsForFormat - l - 1; + var otherDimension = t.target == gl.TEXTURE_2D ? 1 : size; + gl.texImage2D(target, level, test.format, size, otherDimension, 0, test.format, test.type, null); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no error for level: " + level + " " + size + "x" + otherDimension); + if (otherDimension != size) { + gl.texImage2D(target, level, test.format, otherDimension, size, 0, test.format, test.type, null); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no error for level: " + level + " " + otherDimension + "x" + size); + } + } + } +} +</script> +</body> +</html> + |