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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/canvas/test/webgl-conf/checkout/extra/webgl-info.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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
+** the following conditions:
+**
+** 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,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** 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 Information</title>
+<style type="text/css">
+th, td {
+ padding: 4pt;
+}
+th {
+ text-align: right;
+ min-width: 22em;
+}
+</style>
+<script src="../js/webgl-test-utils.js"> </script>
+<script>
+"use strict";
+window.onload = main;
+
+function createCell(txt, isTh) {
+ var str = txt.toString();
+ if (typeof txt != 'string') {
+ if (txt.length !== undefined) {
+ str = "";
+ for (var ii = 0; ii < txt.length; ++ii) {
+ str += (ii == 0 ? "" : ", ") + txt[ii];
+ }
+ }
+ }
+ var t = document.createTextNode(str);
+ var d = document.createElement("div");
+ var td;
+ if (isTh) {
+ td = document.createElement("th");
+ } else {
+ td = document.createElement("td");
+ }
+ d.appendChild(t);
+ td.appendChild(d);
+ return td;
+}
+
+function createRow(values) {
+ var tr = document.createElement("tr");
+ for (var i = 0; i < values.length; ++i) {
+ var td = createCell(values[i], i == 0);
+ tr.appendChild(td);
+ }
+ return tr;
+}
+
+function main() {
+ var wtu = WebGLTestUtils;
+
+ var canvas = document.getElementById("example");
+ var gl = wtu.create3DContext(canvas);
+ if (!gl) {
+ return;
+ }
+
+ var debugRendererInfoRows = function() {
+ var rows = [];
+ var debugExt = wtu.getExtensionWithKnownPrefixes(gl, 'WEBGL_debug_renderer_info');
+ if (debugExt) {
+ var extPnames = [
+ 'UNMASKED_VENDOR_WEBGL',
+ 'UNMASKED_RENDERER_WEBGL'
+ ];
+ for (var ii = 0; ii < extPnames.length; ++ii) {
+ var pname = extPnames[ii];
+ var value = gl.getParameter(debugExt[pname]);
+ rows.push([pname, value]);
+ }
+ }
+ return rows;
+ };
+
+ var precisionRows = function() {
+ var rows = [];
+
+ var addPrecisionRow = function(shaderType, precision) {
+ var typeStr = shaderType === gl.FRAGMENT_SHADER ? 'fragment' : 'vertex';
+ var precisionStr = 'highp';
+ if (precision == gl.MEDIUM_FLOAT) {
+ precisionStr = 'mediump';
+ } else if (precision == gl.LOW_FLOAT) {
+ precisionStr = 'lowp';
+ }
+ rows.push([typeStr + ' shader ' + precisionStr + ' float', gl.getShaderPrecisionFormat(shaderType, precision).precision + ' mantissa bits']);
+ };
+
+ var fSource = 'precision highp float; uniform float r; void main() { gl_FragColor = vec4(r, 0.0, 0.0, 1.0); }'
+ var f = wtu.loadShader(gl, fSource, gl.FRAGMENT_SHADER);
+ if (!f) {
+ rows.push(['fragment shader highp float', 'not supported']);
+ } else {
+ addPrecisionRow(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT);
+ }
+ addPrecisionRow(gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT);
+ addPrecisionRow(gl.FRAGMENT_SHADER, gl.LOW_FLOAT);
+ addPrecisionRow(gl.VERTEX_SHADER, gl.HIGH_FLOAT);
+ addPrecisionRow(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT);
+ addPrecisionRow(gl.VERTEX_SHADER, gl.LOW_FLOAT);
+ return rows;
+ };
+
+ var renderTargetRows = function() {
+ var rows = [];
+ var oesTextureFloat = wtu.getExtensionWithKnownPrefixes(gl, 'OES_texture_float');
+ var oesTextureHalfFloat = wtu.getExtensionWithKnownPrefixes(gl, 'OES_texture_half_float');
+ var formatsToTest = [
+ {
+ description: 'RGBA UNSIGNED_BYTE',
+ format: gl.RGBA,
+ type: gl.UNSIGNED_BYTE
+ },
+ {
+ description: 'RGB UNSIGNED_BYTE',
+ format: gl.RGB,
+ type: gl.UNSIGNED_BYTE
+ }
+ ];
+ if (oesTextureFloat) {
+ formatsToTest.push({
+ description: 'RGBA FLOAT',
+ format: gl.RGBA,
+ type: gl.FLOAT
+ });
+ formatsToTest.push({
+ description: 'RGB FLOAT (deprecated)',
+ format: gl.RGB,
+ type: gl.FLOAT
+ });
+ }
+ if (oesTextureHalfFloat) {
+ formatsToTest.push({
+ description: 'RGBA HALF_FLOAT_OES',
+ format: gl.RGBA,
+ type: oesTextureHalfFloat.HALF_FLOAT_OES
+ });
+ formatsToTest.push({
+ description: 'RGB HALF_FLOAT_OES',
+ format: gl.RGB,
+ type: oesTextureHalfFloat.HALF_FLOAT_OES
+ });
+ }
+ for (var ii = 0; ii < formatsToTest.length; ++ii) {
+ var fb = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
+ var format = formatsToTest[ii];
+ var tex = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_2D, tex);
+ 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_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ gl.texImage2D(gl.TEXTURE_2D, 0, format.format, 256, 256, 0, format.format, format.type, null);
+ gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0);
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+ rows.push([format.description, 'supported']);
+ } else {
+ rows.push([format.description, 'not supported']);
+ }
+ gl.deleteFramebuffer(fb);
+ gl.deleteTexture(tex);
+ }
+ return rows;
+ };
+
+ var info = [
+ {
+ title: 'Renderer',
+ pnames: [
+ 'VERSION',
+ 'VENDOR',
+ 'RENDERER'
+ ],
+ genRows: debugRendererInfoRows
+ },
+ {
+ title: 'Textures and Viewport',
+ pnames: [
+ 'MAX_TEXTURE_SIZE',
+ 'MAX_CUBE_MAP_TEXTURE_SIZE',
+ 'MAX_RENDERBUFFER_SIZE',
+ 'MAX_VIEWPORT_DIMS'
+ ]
+ },
+ {
+ title: 'Shader Variables',
+ pnames: [
+ 'MAX_VARYING_VECTORS',
+ 'MAX_VERTEX_ATTRIBS',
+ 'MAX_VERTEX_UNIFORM_VECTORS',
+ 'MAX_FRAGMENT_UNIFORM_VECTORS',
+ 'MAX_VERTEX_TEXTURE_IMAGE_UNITS',
+ 'MAX_TEXTURE_IMAGE_UNITS',
+ 'MAX_COMBINED_TEXTURE_IMAGE_UNITS'
+ ]
+ },
+ {
+ title: 'Shader Precision',
+ genRows: precisionRows
+ },
+ {
+ title: 'Framebuffer Texture Attachment Support',
+ genRows: renderTargetRows
+ }
+ ];
+
+ // TODO: max anisotropy, framebuffer depth bits, MSAA samples, max multiple render targets buffers, point size, line width
+
+ for (var jj = 0; jj < info.length; ++jj) {
+ var table = document.createElement("table");
+ var tb = document.createElement("tbody");
+ if (info[jj].pnames) {
+ var pnames = info[jj].pnames;
+ for (var ii = 0; ii < pnames.length; ++ii) {
+ var pname = pnames[ii];
+ var value = gl.getParameter(gl[pname]);
+ tb.appendChild(createRow([pname, value]));
+ }
+ }
+ if (info[jj].genRows) {
+ var genRows = info[jj].genRows();
+ for (var ii = 0; ii < genRows.length; ++ii) {
+ tb.appendChild(createRow(genRows[ii]));
+ }
+ }
+ table.appendChild(tb);
+ var header = document.createElement("h2");
+ header.textContent = info[jj].title;
+ document.getElementById("info").appendChild(header);
+ document.getElementById("info").appendChild(table);
+ }
+ var extensionList = document.createElement('ul');
+ var exts = gl.getSupportedExtensions();
+ var extsWithPrefixes = [];
+ while (exts.length > 0) {
+ var prefixedNames = wtu.getExtensionPrefixedNames(exts[0]);
+ var supportedPrefixedNames = [];
+ for (var ii = 0; ii < prefixedNames.length; ++ii) {
+ var index = exts.indexOf(prefixedNames[ii]);
+ if (index >= 0) {
+ supportedPrefixedNames.push(exts[index]);
+ exts.splice(index, 1);
+ }
+ }
+ extsWithPrefixes.push(supportedPrefixedNames.join(" / "));
+ }
+ extsWithPrefixes.sort();
+ for (var ii = 0; ii < extsWithPrefixes.length; ++ii) {
+ var li = document.createElement('li');
+ li.appendChild(document.createTextNode(extsWithPrefixes[ii]));
+ extensionList.appendChild(li);
+ }
+ document.getElementById('extensions').appendChild(extensionList);
+}
+</script>
+</head>
+<body>
+<h1>WebGL Info</h1>
+<div id="info"></div>
+<h2>WebGL Extensions</h2>
+<div id="extensions"></div>
+<canvas id="example" width="256" height="16" style="width: 256px; height: 48px;"></canvas>
+</body>
+</html>
+
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